JP7480475B2 - Notification control system, notification control method, and program - Google Patents

Description

The present invention relates to a notification control system, a notification control method, and a program.

Nurse call systems are known that can call medical staff in response to a call operation by a patient or other person in facilities such as medical facilities and nursing homes.

There is also a known nurse call system that detects whether a bed is available, and if so, notifies the patient that bed making is complete in response to a call operation, and if not, notifies the patient of a nurse call in response to a call operation (see, for example, Patent Document 1).

In such medical facilities, nursing homes, and other facilities, a system may be envisaged that uses temperature image data captured by a thermo camera or the like installed around the bed to detect the status of the bed user (patient, etc.) getting out of bed, returning to bed, etc., and notifies a nurse call system or the like of the user's status. For example, the temperature image data can be used to detect an area of temperature and size corresponding to the user, estimate the user's status, and notify the nurse call system of the user's status based on the estimation result. This makes it possible to realize a notification control system that, for example, ensures the privacy of the bed user and makes it easy to detect the user's status at night after the lights are turned off.

However, with this method, if, for example, a medical professional visits the bed or the area around the bed after the user gets out of bed, the user may be mistakenly detected as having returned to bed, and the nursing system may be notified.

To prevent such false positives, it is also possible to consider, for example, detecting an area with a temperature and size corresponding to a person around the bed, and then determining that the occupant has returned to the bed after a certain period of time has passed since moving to the bed. However, this method of determining the occupant's status over time has the problem that, in the unlikely event that an accident occurs to the occupant of the bed, notification to the nurse call system is delayed.

In this way, in a notification control device that notifies a specified notification destination of a user's status based on temperature image data captured within a specified shooting range, it has been difficult to reduce erroneous notifications while suppressing delays in notifications indicating the user's status.

One embodiment of the present invention has been made in consideration of the above problems, and in a notification control device that notifies a specified notification destination of a user's status based on temperature image data captured within a specified shooting range, it reduces erroneous notifications while suppressing delays in notifications indicating the user's status.

In order to solve the above problem, a notification control system according to one embodiment of the present invention is a notification control system including an information collecting device and a notification control device capable of communicating with the information collecting device via a network, the information collecting device having an image data acquisition unit that captures temperature image data of a bed installed in a facility and the area around the bed, an ID receiving unit that receives a wireless ID from the bed and a wireless tag located around the bed, and an information sending unit that sends information of a user of the bed including the temperature image data, when the ID receiving unit receives the wireless ID, to the notification control device, the information of the user further including the wireless ID, and the notification control device has an information receiving unit that receives the information of the user, a detection unit that detects the head of the user by detecting an area that is at a predetermined temperature and corresponds to the size of the head using the temperature image data included in the information of the user, and a notification control device that outputs a notification indicating the condition of the user based on a detection result by the detection unit. and a notification control unit that notifies the predetermined notification destination of information, wherein when the detection unit detects the head, which had been detected on the bed, in a fall detection area provided around the bed and is no longer detected within a detection frame set within an imaging range of the information collection device within a predetermined time, the notification control unit notifies the predetermined notification destination of the notification information including bed exit detection information indicating that the user has left the bed, when the detection unit detects the head, which had not been detected within the detection frame, in the fall detection area and the user information does not include the wireless ID of a medical worker, the notification control unit notifies the predetermined notification destination of the notification information including bed return detection information indicating that the user has returned to bed, when the detection unit detects the head, which had not been detected within the detection frame, in the fall detection area and the user information includes the wireless ID of a medical worker, and discontinues the process of notifying the predetermined notification destination of the notification information including the bed return detection information.

According to an embodiment of the present invention, in a notification control device that notifies a specified notification destination of a user's status based on temperature image data captured within a specified shooting range, it is possible to reduce erroneous notifications while suppressing delays in notifications indicating the user's status.

1 is a diagram illustrating an example of a system configuration of a notification control system according to an embodiment. FIG. 2 is a diagram illustrating an example of an arrangement of a bed and an information collection device according to an embodiment. FIG. 4 is a diagram illustrating an example of a detection region according to an embodiment. FIG. 13 is a diagram illustrating an example of a detection pattern according to an embodiment. FIG. 2 is a diagram illustrating an example of a hardware configuration of a notification control device according to an embodiment. FIG. 2 is a diagram illustrating an example of a hardware configuration of an information collection device according to an embodiment. FIG. 1 is a diagram illustrating an example of a functional configuration of a notification control system according to an embodiment. 1 is a diagram illustrating an example of information managed by a notification control device according to an embodiment. 10 is a flowchart illustrating an example of a notification control process according to the first embodiment. FIG. 4 is a sequence diagram illustrating an example of a display control process according to the first embodiment. 10 is a flowchart illustrating an example of a process for providing correspondence information according to the first embodiment. 10 is a flowchart illustrating an example of a sound discrimination process according to a second embodiment. FIG. 11 is a diagram illustrating an example of a display screen according to the second embodiment. 13A and 13B are diagrams for explaining a correction process of a detection frame according to a third embodiment. 13 is a flowchart illustrating an example of a correction process of a detection frame according to the third embodiment.

The following describes an embodiment of the present invention with reference to the attached drawings.

<System Configuration>
1 is a diagram showing an example of a system configuration of a notification control system according to an embodiment. The notification control system 100 includes a plurality of information collection devices 102a to 102f installed in an inpatient ward 110, which is an example of a facility such as a medical facility or a care facility, and a notification control device 101 communicably connected to the plurality of information collection devices 102a to 102f via a network 104.

In the following description, "information collection device 102" is used to refer to any one of the multiple information collection devices 102a to 102f. The number of information collection devices 102 shown in FIG. 1 is an example, and the number of information collection devices 102 may be one or more.

The information collection device 102 includes a thermo camera that captures temperature image data indicating the temperature of a subject, and a short-range wireless module that receives identification information transmitted from a Bluetooth (registered trademark) Low Energy (hereinafter referred to as BLE) tag. The information collection device 102 may also be called a hospital bedside camera or simply a camera.

A thermo camera is a photographing device that images infrared radiation from an object being measured, converts it into temperature, and visualizes the temperature distribution using colors, etc. Thermo cameras are also sometimes called thermographic cameras, thermography, thermovision, thermoviewers, etc.

In the example of FIG. 1, multiple information collection devices 102a-102f are installed on the walls or ceilings of each hospital room in correspondence with multiple beds 103a-103f provided in hospital rooms A-F. For example, information collection device 102a is installed on the wall surface corresponding to bed 103a provided in hospital room A, and is installed so as to be able to capture temperature image data indicating the temperature of the subject in and around bed 103a (predetermined capture range).

The information collection device 102a uses a thermo camera to capture temperature image data of the bed 103a and the area around the bed 103a at a predetermined frame rate (e.g., 5 fps to 1 fps, etc.).

In addition, in this embodiment, it is assumed that medical personnel (e.g., doctors, nurses, caregivers, etc.) working at the facility carry BLE tags that transmit identification information that identifies the medical personnel. The information collection device 102a uses a short-range wireless module to receive identification information (hereinafter referred to as wireless ID) transmitted from BLE tags carried by medical personnel (hereinafter simply referred to as "medical personnel") working at the facility.

Healthcare workers may include various staff members working at the facility. The temperature image data acquired by the thermal camera may be still image data captured at a predetermined time interval (e.g., 10 to 60 second intervals). The short-range wireless module may receive a wireless ID transmitted from a wireless tag other than a BLE tag, such as an active RFID (Radio Frequency Identifier) tag, instead of a BLE tag.

In the above configuration, the information collecting device 102a transmits user information, including captured temperature image data, to the notification control device 101 via the network 104. This user information includes identification information (e.g., IP address, device ID, bed ID, etc.) for identifying the information collecting device 102a and the bed 103a. In addition, when the information collecting device 102a receives a wireless ID, the received wireless ID is included in the user information.

In the same manner, the other information collection devices 102b to 102f also transmit user information, including the corresponding bed, temperature image data captured around the bed, and the received wireless ID, to the notification control device 101 via the network 104.

The notification control device 101 is an information processing device having a computer configuration, or a system including multiple information processing devices. The notification control device 101 receives user information transmitted from the information collection device 102, and based on the received user information, notifies a predetermined notification destination, such as a nurse call system 121, of notification information indicating the status of the user using the bed.

For example, the notification control device 101 uses temperature image data included in the user's information to detect a predetermined pattern of temperature change in one or more detection areas that have been set in advance within the shooting range. Furthermore, when a predetermined pattern of temperature change is detected, the notification control device 101 notifies the nurse call system 121 of notification information including notification content corresponding to the detected temperature change (e.g., information indicating the user's condition, temperature image data, etc.).

In addition, the notification control device 101 according to this embodiment has a function of canceling the process of notifying the nurse call system 121 of the notification information depending on whether or not the user information includes a predetermined wireless ID.

For example, the notification control device 101 uses temperature image data included in the user information to detect that a user of the bed 103 has left the bed, and when the user returns to the bed 103, notifies a specified notification destination of return information indicating that the user has returned. However, it is difficult to determine from the temperature image data whether the person who has returned is the bed user or a medical worker, etc.

Therefore, as an example, if the received user information includes a pre-registered wireless ID of a medical professional or facility staff member, or a wireless ID of a person from outside the facility (for example, a contracted vendor such as a cleaner), the notification control device 101 determines that the returning person is a medical professional or the like, and stops the process of notifying the nurse call system 121 of the notification information. By performing this type of processing, it is possible to reduce erroneous notifications to the nurse call system 121, for example, in cases where a bed user returns in a wheelchair with a facility staff member, or when a medical professional or the like is making the bed.

As another example, if the received user information does not include the wireless ID of the bed user, the notification control device 101 may determine that the person who has returned is not the bed user and cancel the process of notifying the nurse call system 121 of the notification information.

As yet another example, a BLE tag can be attached to a tray or container that the user uses for meals, etc., and even if the user is detected in a specific area above the bed (described below), if the received information about the user includes the wireless ID of the BLE tag, the process of notifying the nurse call system 121 of the notification information can be stopped.

Here, the following explanation is given on the assumption that the notification control device 101 stops the process of notifying the nurse call system 121 of the notification information if the user information includes a pre-registered wireless ID of a medical professional, facility staff member, person from outside the facility, etc. Note that the wireless IDs of pre-registered medical professionals, facility staff members, people from outside the facility, etc., and the wireless ID of the bed user are examples of predetermined identification information.

The nurse call system 121 is an information processing device having a computer configuration, or a system including multiple information processing devices, and is an example of a predetermined notification destination to which the notification control device 101 notifies notification information. The nurse call system 121 displays call information from users (e.g., patients, care recipients, etc.) using the bed 103 on display devices 122a-122c installed at nurse stations A-C, or on information terminals 123 carried by staff such as nurses and caregivers.

The nurse call system 121 according to this embodiment is connected to the notification control device 101 via the network 104 as shown in FIG. 1, and receives notification information sent from the notification control device 101. Based on the received notification information, the nurse call system 121 can display a display screen notifying the user of the user's status on the display devices 122a to 122c, the information terminal 123, etc.

The multiple display devices 122a to 122c are display devices installed in nurse stations, etc., and display the display screen transmitted from the nurse call system 121.

The information terminal 123 is an information terminal such as a smartphone, tablet terminal, or notebook PC carried by staff such as nurses or caregivers. The information terminal 123 can communicate with the nurse call system 121, for example, via wireless communication, and can display a display screen transmitted from the nurse call system 121 by executing a specific application.

(Example of bed and camera placement)
2 is a diagram showing an example of the arrangement of beds and cameras according to an embodiment. This embodiment can be applied to a case where a plurality of beds 103 are provided in one hospital room 111, for example, as shown in FIGS. 2(a) and 2(b).

For example, as shown in FIG. 2(a), the information collection device 102 is installed on a wall or the like of a hospital room 111 so as to be able to acquire image data of the bed 103 corresponding to the information collection device 102 and the area around the bed. The information collection device 102 may also be installed on the ceiling of the hospital room 111.

Figure 2 (b) shows the hospital room 111 as seen from above. The information collection device 102 is installed so that it can use a thermo camera to capture temperature image data of the bed 103 corresponding to the information collection device 102 and a predetermined capture range 201 including the area around the bed 103.

The information collection device 102 is also adjusted to receive radio waves transmitted by BLE tags within a communication range 202 that includes the bed 103 and the area around the bed 103 using a short-range wireless module, and to obtain the wireless ID contained in the radio waves.

Each medical worker carries a BLE tag that transmits a wireless ID to identify the medical worker. The BLE tag can control the communication distance by adjusting the strength of the radio waves it transmits; for example, the strength of the radio waves it transmits is set so that the communication distance is about 3 to 4 meters.

(Example of detection area)
3 is a diagram illustrating an example of a detection area according to an embodiment. The notification control device 101 manages one or more detection areas that are set in advance within the shooting range 201 of the information collection device 102.

For example, as shown in FIG. 3(a), a detection frame 301 including multiple small regions 302 is set within the shooting range 201 of the information collection device 102. In the example of FIG. 3(a), 25 small regions 302 identified by columns A to E and rows 1 to 5 are provided within the detection frame 301.

The notification control device 101 also manages area information 310, which stores 25 small areas 302 in association with multiple detection areas, as shown in FIG. 3(b). For example, in the example of FIG. 3(b), attention area B is represented by "C3," which indicates the position of the small area. Furthermore, attention area C is represented by "B2, C2" and "B4, C4," which indicate the positions of multiple small areas. This allows the notification control device 101 to easily manage temperature changes in one or more detection areas.

(Example of detection pattern)
4 is a diagram showing an example of a detection pattern according to an embodiment. The notification control device 101 detects a predetermined pattern of temperature change in one or more detection areas set within the shooting range 201 by using temperature image data included in the user information received from the information collecting device 102.

As a suitable example, the notification control device 101 detects the position of the user 401 using the bed 103 based on the temperature of the head 402 of the user 401. The head 402 of the user's 401 body is rarely covered by, for example, clothing or a blanket, and the face is also less affected by hair, making it suitable for detecting the position of the user 401.

For example, in the temperature image data included in the user information, as shown in FIG. 4(a), the head 402 of the user 401 is represented as a different temperature (different color) from the other parts. Therefore, the notification control device 101 can detect the position of the user 401 by detecting an area from the temperature image data that is a predetermined temperature (e.g., 30°C to 40°C, etc.) and corresponds to the size of the head 402.

In the example of FIG. 4(a), as an example of a detection pattern, an example of a detection pattern when the head 402 of the user 401 moves into the attention area A410 defined in FIG. 3(a) and (b) is shown. When the head 402 of the user 401 moves into the attention area A410, the notification control device 101 determines, for example, that there is a risk of the user 401 falling from the bed 103. In this case, the notification control device 101 notifies a predetermined notification destination, such as the nurse call system 121, of notification information indicating that the user 401 is at risk of falling from the bed. This notification information includes fall warning information indicating that there is a risk of the user 401 falling from the bed 103, a bed ID for identifying the bed 103, temperature image data determined to be dangerous, and current temperature image data.

Figure 4 (b) shows an example of a detection pattern when the user 401 falls from the bed 103, as another example of a detection pattern. For example, assume that the head 402 of the user 401, which has been detected in one of the attention areas A to C defined in Figures 3 (a) and (b), moves to the fall detection area 420 and remains in the fall detection area 420 for a predetermined period of time. In this case, the notification control device 101 determines that the user 401 has fallen from the bed 103. In this case, the notification control device 101 notifies a predetermined notification destination, such as the nurse call system 121, of notification information including fall detection information indicating that the user 401 has fallen from the bed.

Figure 4 (c) shows, as another example of a detection pattern, an example of a detection pattern that detects a user 401 using the bed 103 leaving the bed 103. For example, if the head 402 of the user 401, which had been detected on the bed 103, is detected in the fall detection area 420 and is no longer detected within the detection frame 301 within a predetermined time, the notification control device 101 determines that the user has left the bed. In this case, the notification control device 101 notifies a predetermined notification destination, such as the nurse call system 121, of notification information including bed leaving detection information indicating that the user 401 has left the bed 103.

Figure 4(d) shows, as another example of a detection pattern, an example of a detection pattern that detects that a user 401 using a bed 103 has returned to the bed 103 (hereinafter referred to as returning to bed). For example, assume that a user 401 who has not been detected within the detection frame 301 has returned to the bed 103 or to the vicinity of the bed 103. In this case, for example, as shown in Figure 4(d), the head 402 of the user 401 is detected in the fall detection area 420. However, this alone does not allow the notification control device 101 to determine whether the person detected in the fall detection area 420 is the user 401 of the bed 103 or a facility staff member.

Therefore, if the user information received from the information collection device 102 does not include the wireless ID of the medical worker, the notification control device 101 determines that the person detected in the fall detection area 420 is the user 401 of the bed 103. The information collection device 102 also notifies a predetermined notification destination, such as the nurse call system 121, of notification information including return-to-bed detection information indicating that the user 401 has returned to the bed 103. On the other hand, if the user information received from the information collection device 102 includes the wireless ID of the medical worker, the notification control device 101 determines that the person detected in the fall detection area 420 is a medical worker and stops the process of sending the notification information to the predetermined notification destination.

As a result, if the user 401 who has returned to the bed 103, for example, slips on his/her hands or feet and falls in the fall detection area 420 as shown in FIG. 4(b), the notification control device 101 can immediately determine that the user 401 is in the fall detection area 420. In addition, when a medical professional is working in the fall detection area 420, the notification control device 101 stops the process of sending notification information to a specified notification destination, thereby reducing erroneous notifications to the notification destination.

In this way, according to this embodiment, in the notification control device 101 that notifies a specified notification destination of a user's status based on temperature image data captured in a specified shooting range 201, it is possible to reduce erroneous notifications while suppressing delays in notifications indicating the user's status.

<Hardware Configuration>
Next, the hardware configuration of the notification control device 101 and the information collection device 102 will be described.

(Hardware configuration of notification control device)
5 is a diagram showing an example of a hardware configuration of a notification control device according to an embodiment. The notification control device 101 has a typical computer configuration, and includes, for example, a CPU (Central Processing Unit) 501, a RAM (Random Access Memory) 502, a ROM (Read Only Memory) 503, a storage 504, a network I/F (Interface) 505, an input device 506, a display device 507, an external I/F 508, and a bus 509.

The CPU 501 is a computing device that realizes each function of the notification control device 101 by reading programs and data stored in the ROM 503, storage 504, etc. onto the RAM 502 and executing processing. The RAM 502 is a volatile memory used as a work area for the CPU 501, etc. The ROM 503 is a non-volatile memory that can retain programs and data even when the power is turned off.

Storage 504 is, for example, a large-capacity storage device such as a hard disk drive (HDD) or a solid state drive (SSD), and stores, for example, an operating system (OS), application programs, various data, etc.

The network I/F 505 is a communication interface for connecting the notification control device 101 to the network 104. The input device 506 is an input device such as a pointing device like a mouse or a keyboard, and is used to input various operations to the notification control device 101. The display device 507 is a display device such as a display, and is used to display the processing results, etc., of the notification control device 101.

The external I/F 508 is an interface for connecting an external device. The external device includes, for example, a recording medium. The notification control device 101 stores a specific program in a recording medium, and installs the program stored in the recording medium in the notification control device 101 via the external I/F 508, thereby enabling the specific program to be executed. The bus 509 is connected to each of the above components, and transmits address signals, data signals, various control signals, and the like.

(Hardware configuration of information collection device)
6A and 6B are diagrams illustrating an example of a hardware configuration of an information collection device according to an embodiment. As illustrated in Fig. 6A, the information collection device 102 includes a CPU 601, a memory 602, a network I/F 603, a short-range wireless module 604, a thermal camera 605, a CMOS (Complementary Metal Oxide Semiconductor) camera 606, a microphone array 607, an LED (Light Emitting Diode) 608, and a bus 609.

The CPU 601 is a computing device that realizes each function of the information collection device 102 by executing programs stored in the memory 602. The memory 602 includes storage devices such as RAM, ROM, and flash ROM. The network I/F 603 is a communication interface for connecting the information collection device 102 to the network 104.

The short-range wireless module 604 includes an antenna, a wireless circuit, a communication control unit, and the like for communicating with a wireless tag such as a BLE tag via short-range wireless communication such as BLE communication.

Thermal camera 605, as described in the explanation of FIG. 1, is an imaging device that images infrared radiation from a measurement object, converts it into temperature, and visualizes the temperature distribution by color or the like. For example, as shown in FIG. 6(b), the thermal camera 605 is provided on the front panel 610 facing the bed 103, captures images of the bed 103 and the imaging range 201 including the area around the bed 103, and outputs temperature image data.

The CMOS camera 606 is a photographing device that captures general photographic data. For example, as shown in FIG. 6(b), the CMOS camera 606 is provided on the front panel 610 facing the bed 103, captures photographic data within the photographing range 201 including the bed 103 and the area around the bed 103, and outputs the captured photographic data.

The microphone array 607 selectively acquires audio within a predetermined range using multiple microphones. For example, as shown in FIG. 6(b), the microphone array 607 includes two or more microphones provided on the front panel 610 facing the bed 103, and selectively acquires audio data of the bed 103 and the surroundings of the bed 103. As an example, the microphone array 607 acquires audio within a range similar to the communication range 202 of the short-range wireless module shown in FIG. 2.

The LED 608 is a light-emitting element that emits light under control of the CPU 601. The LED 608 is an example of a display device provided in the information collection device 102, and for example, blinks or lights up in a color and light emission pattern specified by the CPU 601. The bus 609 is connected to each of the above components and transmits address signals, data signals, various control signals, etc.

<Functional configuration>
Next, the functional configuration of the notification control system 100 will be described.

Figure 7 is a diagram showing an example of the functional configuration of a notification control system according to one embodiment. The notification control system 100 includes a notification control device 101 connected to a network 104, and one or more information collection devices 102a, 102b, .... The notification control device 101 is also connected, for example, via the network 104 to be able to communicate with a nurse call system 121, which is an example of a predetermined notification destination. Note that in Figure 7, the information collection device 102b has the same functional configuration as the information collection device 102a.

(Functional configuration of notification control device)
The notification control device 101 realizes, for example, a communication unit 701, an information receiving unit 702, a detection unit 703, a notification control unit 704, an ID management unit 705, a corresponding information providing unit 706, a display control unit 707, a voice discrimination unit 708, a voice information providing unit 709, a correction unit 710, and a storage unit 711 by executing a predetermined program in the CPU 501. Note that at least a part of the above functional configurations may be realized by hardware.

The communication unit 701 is realized, for example, by a program executed by the CPU 501 in FIG. 5 and the network I/F 505, etc., and connects the notification control device 101 to the network 104 to communicate with the information collection device 102, the nurse call system 121, etc.

The information receiving unit 702 is realized, for example, by a program executed by the CPU 501 in FIG. 5, and receives user information (subject information) sent from one or more information collection devices 102 via the network 104, and stores the information in the memory unit 711.

As described above, this user information includes information for identifying the information collection device 102, bed 103, etc., and temperature image data captured of the bed 103 and the imaging range 201 around the bed 103. In addition, if the information collection device 102 receives a wireless ID, the user information further includes the received wireless ID.

If necessary, the user information also includes voice data acquired by the voice data acquisition unit 725 at the bed 103 and in the vicinity of the bed 103.

The detection unit 703 is realized, for example, by a program executed by the CPU 501 in FIG. 5. The detection unit 703 detects temperature changes of a predetermined detection pattern in one or more detection areas set in advance within the shooting range 201, using the temperature image data stored in the storage unit 711 by the information receiving unit 702.

For example, the notification control device 101 prestores detection pattern information 712 as shown in FIG. 8(a) in the storage unit 711 or the like. The detection unit 703 detects temperature changes in the detection pattern set in the detection pattern information 712 in detection areas such as the detection frame 301, the fall detection area, and the attention areas A to C described in FIGS. 3(a) and (b), for example.

FIG. 8(a) is a diagram showing an example of detection pattern information 712 according to one embodiment. In the example of FIG. 8(a), the detection pattern information 712 includes information such as "detection pattern," "notification content," and "temperature change" as items.

"Detection pattern" is information such as a name, number, or identification information for identifying a detection pattern that indicates a pattern of temperature change. "Notification content" is information indicating the notification content to be sent to a specified notification destination when a "temperature change" corresponding to a "detection pattern" is detected. "Temperature change" is information indicating a change in temperature detected in a detection area such as the detection frame 301, fall detection area, or attention areas A to C that corresponds to a "detection pattern."

For example, in FIG. 8(a), it is shown that the "temperature change" corresponding to the detection pattern "Pattern 6" is the movement of the detection object (e.g., head 402 of user 401) from outside the detection frame 301 to inside the detection frame 301. The detection unit 703 detects, for example, temperature changes in the detection frame 301, the fall detection area, and attention areas A to C, and detects a temperature change of "Pattern 6" (an example of a predetermined detection pattern) when the detection object moves from outside the detection frame 301 to inside the detection frame 301.

The notification control unit 704 is realized, for example, by a program executed by the CPU 501 in FIG. 5. The notification control unit 704 notifies a predetermined notification destination, such as the nurse call system 121, of notification information indicating the status of the user 401 of the bed 103 (status of the subject) based on the user information (information of the subject) received by the information receiving unit 702.

For example, when the detection unit 703 detects a temperature change of a predetermined detection pattern and the user information (information on the subject) does not include a predetermined wireless ID, the notification control unit 704 notifies a predetermined notification destination of notification information including "notification content" corresponding to the "detection pattern." Here, the predetermined wireless ID is the wireless ID of a medical professional working at the facility.

For example, in the detection pattern information 712 shown in FIG. 8(a), assume that a temperature change is detected in the detection pattern "Pattern 6" and the user information does not include a predetermined wireless ID. In this case, the notification control unit 704 notifies a specified notification destination of notification information including "notification content" (return-to-bed information indicating that the user has returned to bed, and temperature image data of the bed and the area around the bed) corresponding to the detection pattern "Pattern 6" in the detection pattern information 712.

On the other hand, when the detection unit 703 detects a temperature change of a predetermined detection pattern and the user information includes a predetermined wireless ID, the notification control unit 704 stops the process of notifying a predetermined notification destination of notification information including "notification content" corresponding to the "detection pattern."

The ID management unit (identification information management unit) 705 is realized, for example, by a program executed by the CPU 501 in FIG. 5, and stores and manages ID management information 713, which stores wireless IDs that identify medical personnel working at the facility, in the memory unit 711, etc.

Figure 8 (b) is a diagram showing an example of ID management information 713 according to one embodiment. In the example of Figure 8 (b), the ID management information 713 includes information such as "radio ID", "job type", "affiliation", and "name" as items.

The "wireless ID" is identification information contained in the radio waves transmitted by the BLE tag carried by the medical worker working at the facility. The "job type" is information indicating the job type of the medical worker corresponding to the "wireless ID". The "affiliation" is information indicating the affiliation to which the medical worker corresponding to the "wireless ID" belongs. The "name" is information indicating the name, etc., of the medical worker corresponding to the "wireless ID".

Using such ID management information 713, the notification control device 101 can determine that facility staff, medical workers, etc. are near the bed 103 if the wireless ID received at the bed 103 and in the vicinity of the bed 103 is registered in the ID management information 713. Furthermore, the notification control device 101 can determine that facility staff, medical workers, etc. are not near the bed 103 if the wireless ID received at the bed 103 and in the vicinity of the bed 103 is not registered in the ID management information 713.

The response information providing unit (first information providing unit) 706 is realized, for example, by a program executed by the CPU 501 in FIG. 5. The response information providing unit 706 uses the wireless ID included in the user information (subject information) received by the information receiving unit 702 to provide information that visualizes the response of facility staff, medical staff, etc. to the user 401 of the bed 103.

For example, the response information providing unit 706 tallies up the time when each medical staff member's wireless ID was received by each bed 103, and outputs or displays information visualized in a table, graph, etc., showing how long each medical staff member spent responding to the user of each bed 103.

The information provided by the response information providing unit 706 may include temperature image data captured of the bed 103 and the area around the bed 103. This allows, for example, if the user 401 of the bed 103 is a victim of violence, abuse, or the like, the staff around the bed 103 and their response status to be visualized, which is expected to have the effect of deterring violence, abuse, or the like by medical staff.

The display control unit 707 is realized, for example, by a program executed by the CPU 501 in FIG. 5, and controls the display by display devices such as the LED 608 provided in the information collection device 102.

For example, the display control unit 707 determines whether a medical professional is present at or near the bed 103 based on the wireless ID included in the user information received by the information receiving unit 702. When a medical professional or the like is present at or near the bed 103, the display control unit 707 notifies the information collecting device 102 of information indicating that a medical professional is present at or near the bed 103, as one example. As another example, the display control unit 707 may notify the information collecting device 102 of control information instructing the LED 608 to flash green when a medical professional or the like is present at or near the bed 103.

In response to this, when a medical professional is present at or near the bed 103, the information collection device 102 causes, for example, the LED 608 to flash green. Note that the flashing green light of the LED 608 is an example of display information indicating that a medical professional is present at or near the bed 103.

On the other hand, when there is no medical staff at or around the bed 103, the display control unit 707, as one example, notifies the information collection device 102 of information indicating that there is no medical staff at or around the bed 103. As another example, when there is no medical staff at or around the bed 103, the display control unit 707 may notify the information collection device 102 of control information instructing not to flash the LED 608 green.

In response to this, the information collection device 102 does not cause the LED 608 to flash green if there is no medical staff at or near the bed 103.

The sound discrimination unit (discrimination unit) 708 is realized, for example, by a program executed by the CPU 501 in FIG. 5, and uses the temperature image data and sound data contained in the user information received by the information receiving unit 702 to discriminate the type of sound contained in the sound data.

For example, the audio discrimination unit 708 calculates the volume of the audio data, and if the volume of the sound is equal to or greater than a first threshold, it analyzes the temperature image data and calculates the amount of movement of the user using the bed 103 (for example, the amount of movement of the head 402 of the user 401).

Furthermore, for example, when the volume of the audio data is equal to or greater than a first threshold and the amount of movement of the user is equal to or greater than a second threshold, the audio discrimination unit 708 determines that the type of sound is, for example, the user's moaning.

On the other hand, for example, when the volume of the audio data is equal to or greater than a first threshold and the amount of movement of the user is less than a second threshold, the audio discrimination unit 708 determines that the type of sound is, for example, the user's snoring.

Moaning and snoring are examples of types of sounds that are distinguished by the sound distinguishing unit 708. The sound distinguishing unit 708 may, for example, distinguish whether or not the type of sound contained in the voice data is a sound that should be notified to a specified notification destination.

The voice information providing unit (second information providing unit) 709 is realized, for example, by a program executed by the CPU 501 in FIG. 5, and outputs or displays information indicating the discrimination result by the voice discrimination unit 708.

Preferably, the information provided by the audio information providing unit 709 includes temperature image data captured on the bed 103 or the area around the bed 103. Preferably, the audio information providing unit 709 can output audio captured on the bed 103 or the area around the bed 103 in response to a user operation or the like.

The correction unit 710 is realized, for example, by a program executed by the CPU 501 in FIG. 5, and corrects the positions of the detection frame 301, the fall detection area, and the attention areas A to C, etc., set within the shooting range 201 in response to changes in the position of the bed 103.

For example, the information collection device 102 can transmit image data (hereinafter referred to as photo data) of the bed 103 captured by the CMOS camera 606 to the notification control device 101 as necessary. Furthermore, the correction unit 710 uses the received photo data to identify the position of the bed 103 (e.g., outline, etc.) and corrects the positions of the detection frame 301, fall detection area, attention areas A to C, etc., according to the position of the bed 103.

Preferably, if the correction unit 710 cannot correct the positions of the detection frame 301, the fall detection area, and the attention areas A to C, etc., the display control unit 707 causes the LED 608 of the information collection device 102 to flash, for example, in red. In this case, the facility staff, medical staff, etc. determine that the position of the bed 103 is not appropriate and adjust the bed 103 to the correct position.

Then, the correction unit 710 again corrects the positions of the detection frame 301, the fall detection area, and the attention areas A to C, etc., and if the corrections are successful, stops the red flashing of the LED 608 of the information collection device 102.

The storage unit 711 is realized, for example, by the program executed by the CPU 501 in FIG. 5, the storage 504, the RAM 502, etc., and stores the detection pattern information 712, the ID management information 713, the area information 310, etc., described above.

(Functional configuration of information collection device)
The information collecting device 102, for example, realizes a communication unit 721, an image data acquisition unit 722, an ID receiving unit 723, an information transmitting unit 724, an audio data acquisition unit 725, a photo data acquisition unit 726, and a display unit 727 by executing a predetermined program in the CPU 601. Note that at least a part of the above functional configurations may be realized by hardware.

The communication unit 721 is realized, for example, by a program executed by the CPU 601 in FIG. 6 and the network I/F 603, etc., and connects the information collection device 102 to the network 104 to communicate with the notification control device 101, etc.

The image data acquisition unit 722 is realized, for example, by a program executed by the CPU 601, and captures temperature image data of the bed 103 and the area around the bed 103 using the thermo camera 605 in FIG. 6.

The ID receiving unit (identification information receiving unit) 723 is realized, for example, by a program executed by the CPU 601, and receives wireless IDs from the bed 103 and BLE tags, etc., in the vicinity of the bed 103 using the short-range wireless module 604 in FIG. 6.

The information transmission unit 724 is realized, for example, by a program executed by the CPU 601, and transmits user information, including temperature image data captured by the image data acquisition unit 722, to the notification control device 101.

As described above, this user information includes information for identifying the information collection device 102, bed 103, etc. Furthermore, if the ID receiving unit 723 receives a wireless ID, the user information includes the wireless ID received by the ID receiving unit 723. Furthermore, if necessary, the information transmitting unit 724 can transmit, for example, the voice data acquired by the voice data acquiring unit 725, the photo data acquired by the photo data acquiring unit 726, etc., included in the user information to the notification control device 101.

The audio data acquisition unit 725 is realized, for example, by a program executed by the CPU 601, and acquires audio data from the bed 103 and the area around the bed 103 using the microphone array 607 in FIG. 6.

The photo data acquisition unit 726 is realized, for example, by a program executed by the CPU 601, and captures photo data of the bed 103 and the area around the bed 103 using the CMOS camera 606 in FIG. 6.

The display unit 727 is realized, for example, by a program executed by the CPU 601, and causes the LED 608 in FIG. 6 to emit light in a predetermined color, blinking pattern, or the like to display predetermined information. For example, when a facility staff member, user, or the like is present at or around the bed 103, the display unit 727 blinks the LED 608 green, for example. In addition, when the correction unit 710 of the notification control device 101 cannot correct the position of the detection frame 301, the display unit 727 blinks the LED 608 red, for example.

<Processing flow>
Next, the process flow of the notification control method according to this embodiment will be described.

[First embodiment]
(Notification control process)
9 is a flowchart showing an example of a notification control process according to the first embodiment. This process shows an example of a notification control process that is executed when the notification control device 101 receives user information transmitted from the information collecting device 102.

As an example, it is assumed here that the information collection device 102 transmits user information, including temperature image data captured of the bed 103 and the area around the bed 103, and a bed ID for identifying the bed 103, to the notification control device 101 at a predetermined time interval. Also, when the ID receiving unit 723 of the information collection device 102 receives a wireless ID, it transmits user information, including the received wireless ID, to the notification control device 101.

In step S901, the information receiving unit 702 of the notification control device 101 receives user information sent from the information collecting device 102.

In step S902, the information receiving unit 702 stores the temperature image data contained in the received user information in the memory unit 711.

At this time, preferably, the information receiving unit 702 deletes from the memory unit 711 any temperature image data that has exceeded a specified storage period.

In step S903, the detection unit 703 of the notification control device 101 detects a temperature change of a predetermined detection pattern in one or more detection areas using the temperature image data stored in the memory unit 711.

For example, the detection unit 703 detects a temperature change of the detection pattern set in the detection pattern information 712 in detection areas such as the detection frame 301, the fall detection area, and the attention areas A to C described in Figures 3 (a) and (b).

In step S904, the detection unit 703 of the notification control device 101 determines whether a temperature change of a predetermined detection pattern was detected in step S903.

If a temperature change in the specified detection pattern is detected, the notification control device 101 transitions the process to step S905. On the other hand, if a temperature change in the specified detection pattern is not detected, the notification control device 101 terminates the process.

When the process proceeds to step S905, the notification control unit 704 of the notification control device 101 determines whether the user information received by the information receiving unit 702 includes the wireless ID of a medical professional. For example, if the user information received by the information receiving unit 702 includes a wireless ID registered in the ID management information 713, the notification control unit 704 determines that the user information includes the wireless ID of a medical professional.

If the user information does not include the wireless ID of the medical staff, the notification control unit 704 transitions the process to step S906. On the other hand, if the user information includes the wireless ID of the medical staff, the notification control unit 704 stops the process of notifying the specified notification destination of the notification information, and ends the process.

When the process proceeds to step S906, the notification control unit 704 of the notification control device 101 notifies a predetermined notification destination, such as the nurse call system 121, of notification information corresponding to the detected temperature change.

By the above processing, for example, as shown in FIG. 4(d), when a user 401 using the bed 103 moves into the detection frame 301, the notification control unit 704 can immediately notify a predetermined notification destination of notification information indicating that the user 401 has returned to bed.

On the other hand, in FIG. 4(d), if the person who moves into the detection frame 301 is a medical worker, the notification control device 101 can stop the process of notifying the specified notification destination of the notification information.

In this way, according to this embodiment, the notification control device 101, which notifies a specified notification destination of a user's status based on temperature image data captured within a specified shooting range, can reduce erroneous notifications while suppressing delays in notifications indicating the user's status.

(Display control process)
10 is a sequence diagram showing an example of a display control process according to the first embodiment. This process shows an example of a display control process executed in parallel with the notification control process shown in FIG. 9 when the notification control device 101 receives user information transmitted from the information collecting device 102.

In step S1001, the information collection device 102 transmits information about the user, including temperature image data captured of the bed 103 and the area around the bed 103, to the notification control device 101.

In step S1002, the display control unit 707 of the notification control device 101 determines whether the user information received from the information collection device 102 includes the wireless ID (predetermined ID) of the medical worker.

If the user information includes the wireless ID of the medical staff, steps S1011 and S1012 are executed. On the other hand, if the user information does not include the wireless ID of the medical staff, steps S1021 and S1022 are executed.

In step S1011, the display control unit 707 of the notification control device 101, as one example, notifies the information collection device 102 of information indicating that a medical professional is present at the bed 103 or near the bed 103. As another example, the display control unit 707 may notify the information collection device 102 of control information instructing the LED 608 to flash green.

In step S1012, the display unit 727 of the information collection device 102 causes the LED 608 to flash green in response to information received from the notification control device 101 indicating the presence of a medical professional or control information instructing the LED 608 to flash green.

On the other hand, in step S1021, the display control unit 707 of the notification control device 101, for example, notifies the information collection device 102 of information indicating that there is no medical staff at the bed 103 or around the bed 103. As another example, the display control unit 707 may notify the information collection device 102 of control information instructing the LED 608 to stop flashing green.

In step S1022, the display unit 727 of the information collection device 102 does not blink the LED 608 green in response to information received from the notification control device 101 indicating that no medical personnel are present or control information instructing the LED 608 to stop blinking green. For example, if the LED 608 is blinking green, the display unit 727 stops the LED 608 from blinking green, and if the LED 608 is not blinking green, the display unit 727 maintains the current state.

By performing the above process, medical personnel can check the LED 608 of a nearby information collection device 102, and if it is not flashing green, they can recognize that the BLE tag is broken or out of battery, or that the ID receiving unit 723 of the information collection device 102 is broken.

(Provision of correspondence information)
11 is a flowchart showing an example of a process for providing response information in the first embodiment. This process shows an example of a process for providing response information in which the notification control device 101 visualizes and provides a response by a medical professional to the user 401 of the bed 103.

In step S1101, the information receiving unit 702 of the notification control device 101 receives user information sent from the information collection device 102.

In step S1102, the response information providing unit 706 of the notification control device 101 determines whether the received user information includes the wireless ID (predetermined ID) of the medical worker.

If the user information includes the wireless ID of the medical professional, the response information providing unit 706 transitions the process to step S1103. On the other hand, if the user information does not include the wireless ID of the medical professional, the response information providing unit 706 transitions the process to step S1104.

When the process proceeds to step S1103, the corresponding information providing unit 706 of the notification control device 101 associates the wireless ID of the medical staff included in the user information with the bed 103 and stores the associated ID in the storage unit 711. For example, the corresponding information providing unit 706 associates the wireless ID included in the user information with identification information for identifying the bed 103, the information collection device 102, etc., and stores the associated ID in the storage unit 711.

Preferably, the information stored in the memory unit 711 by the correspondence information providing unit 706 is automatically deleted after a certain period of time.

When the process proceeds to step S1104, the correspondence information providing unit 706 of the notification control device 101 determines whether or not a request to display correspondence information has been received, for example, from the input device 506.

If a request to display the corresponding information has not been received, the notification control device 101 returns the process to step S1101 and executes the processes from step S1101 onwards again. On the other hand, if a request to display the corresponding information has been received, the corresponding information providing unit 706 of the notification control device 101 transitions the process to step S1105.

When the process proceeds to step S1105, the response information providing unit 706 of the notification control device 101 acquires the information stored in the memory unit 711 and tallies the time that the wireless ID of the medical staff was received by each bed 103. This allows, for example, the time that the medical staff remained at each bed 103 and in the vicinity of the bed 103 to be calculated.

In step S1106, the response information providing unit 706 of the notification control device 101, for example, visualizes and displays the response of medical staff to the users of each bed.

For example, based on the wireless ID of the medical staff member specified in step S1104, the response information providing unit 706 creates display information indicating how much time the medical staff member spent responding to the user of each bed 103, and displays the information on the display device 507, etc.

As a preferred example, the response information providing unit 706 may create display information including information on the medical professional corresponding to the user in the bed 103 specified in step S1104 and temperature image data, and display the information on the display device 507, etc. This makes it easier to identify which medical professional committed the assault or abuse, for example, if the user 401 of the bed 103 is assaulted or abused.

In this way, the notification control device 101 according to this embodiment can visualize and provide (output, display, etc.) the response of medical staff to the users of each bed 103.

Second Embodiment
In the second embodiment, an example of processing in a case where the information of the user that the information collection device 102 transmits to the notification control device 101 includes voice data of the bed 103 and the vicinity of the bed 103 will be described.

(Sound discrimination processing)
12 is a flowchart showing an example of a sound discrimination process according to the second embodiment. This process shows an example of a process in which the sound discrimination unit 708 of the notification control device 101 discriminates the type of sound in the bed 103 and around the bed 103.

In step S1201, the information receiving unit 702 of the notification control device 101 receives user information sent from the information collecting device 102 and stores it in the memory unit 711.

In step S1202, the voice discrimination unit 708 calculates the volume of the sound from the voice data contained in the user information.

In step S1203, the sound discrimination unit 708 judges whether the volume of the sound in the sound data is equal to or greater than a first threshold. Note that the first threshold is, for example, a preset value for judging whether a sound to be discriminated is occurring at or around the bed 103.

If the loudness of the sound in the audio data is less than the first threshold, the audio discrimination unit 708 ends the process. On the other hand, if the loudness of the sound in the audio data is equal to or greater than the first threshold, the audio discrimination unit 708 transitions the process to step S1205.

When the process proceeds to step S1204, the voice discrimination unit 708 calculates the amount of movement of the user of the bed 103 (e.g., the amount of movement of the head 402 of the user 401) using the temperature image data stored in the memory unit 711. As an example, the amount of movement of the user is represented by the amount of movement of a pixel indicating the temperature corresponding to the head 402 of the user 401 in the temperature image data.

In step S1205, the voice discrimination unit 708 determines whether the amount of movement of the user calculated in step S1204 is equal to or greater than a second threshold. The second threshold is, for example, a preset value for determining whether the user of the bed 103 is awake or asleep.

When the amount of movement of the user is equal to or greater than the second threshold, the sound discrimination unit 708 discriminates the type of sound occurring at the bed 103 and around the bed 103 as, for example, a groan. On the other hand, when the amount of movement of the user is less than the second threshold, the sound discrimination unit 708 discriminates the type of sound occurring at the bed 103 and around the bed 103 as, for example, a snoring sound.

Based on the result of this determination, the audio information providing unit 709 of the notification control device 101 can display, for example, a display screen 1300 as shown in FIG. 13 on the display device 507, etc.

Alternatively, the voice information providing unit 709 may notify the nurse call system 121 or the like of the display screen 1300 based on this determination result. For example, when the type of sound is determined to be a groan in the sound determination process shown in FIG. 12, the voice information providing unit 709 notifies a predetermined notification destination such as the nurse call system 121 of the display screen 1300 as shown in FIG. 13.

Fig. 13 is a diagram showing an example of a display screen according to the second embodiment. In the example of Fig. 13, a display screen 1300 displays, for example, a character string 1301 indicating the condition of the user, a temperature image 1302 captured around the bed 103, volume information 1303, and a play button 1304.

The character string 1301 indicating the user's status may, for example, as shown in FIG. 13, display the bed name identifying the bed 103, the status of the user 401 of the bed 103, and the results of the sound discrimination process in FIG. 12.

The temperature image 1302 taken around the bed 103 is displayed using temperature image data included in the user information received from the information collection device 102.

The volume information 1303 visually displays the volume of sounds around the bed 103. When the play button 1304 is selected, the audio information providing unit 709 uses the acquired audio data to play sounds acquired around the bed 103.

For example, in the first embodiment, when the head 402 of the user 401 is detected in a fall detection area, attention areas A to C, etc., the notification control device 101 executes a notification process to notify a predetermined notification destination of notification information indicating the state of the user 401. Therefore, for example, if the head 402 of the user 401 does not move from the position shown in the temperature image 1302 in FIG. 13, the notification information is not notified.

However, by combining the first and second embodiments, the notification control device 101 can detect an abnormality in the user 401 even when, for example, the head 402 of the user 401 does not move, and can notify a specified notification destination that an abnormality has occurred.

[Third embodiment]
In the third embodiment, a process related to correction of the detection window 301 by the correction unit 710 of the notification control device 101 will be described.

When the information collection device 102 is installed on the wall or ceiling of a hospital room, if the position of the bed 103 moves from a specified position, the accuracy of the detection process by the detection unit 703 may decrease. For this reason, the notification control device 101 has a correction unit 710 that corrects the position of the detection frame 301 to match the position of the bed 103 when the position of the bed 103 is misaligned with respect to the detection frame 301 of the information collection device 102.

Figure 14 is a diagram for explaining the detection frame correction process according to the third embodiment. The information collection device 102 according to this embodiment has a function of taking photo data of the bed 103 using the CMOS camera 606 and transmitting it to the notification control device 101.

For example, the photo data acquisition unit 726 of the information collection device 102 acquires photo data of the bed 103 and the area around the bed 103. In addition, the information transmission unit 724 transmits user information including the temperature image data acquired by the image data acquisition unit 722 and the photo data acquired by the photo data acquisition unit 726 to the notification control device 101.

The information sending unit 724 may send photo data to the notification control device 101 separately from the user information. Also, the information collection device 102 may send photo data to the notification control device 101 when requested by the notification control device 101, or may send photo data to the notification control device 101 at a predetermined time interval, for example.

Figure 14 (a) shows an image of a photographic image 1401 and a detection frame 301 when the bed 103 is placed in a predetermined position. If the position of the bed 103 shifts from this state, for example, as shown in Figure 14 (b), the correction unit 710 of the notification control device 101 detects that the position of the bed 103 has shifted, for example, by detecting the outline of the bed 103 from the photographic image 1401.

When the correction unit 710 of the notification control device 101 detects that the position of the bed 103 has shifted, it corrects the position of the detection frame 301 to match the contour of the bed 103, for example, as shown in FIG. 14(c).

However, for example, as shown in FIG. 14(d), if the position of the bed 103 is significantly shifted, the correction unit 710 of the notification control device 101 may not be able to detect, for example, the outline of the bed 103. Also, if the position of the bed 103 is significantly shifted in this way, even if the outline of the bed 103 can be detected, it may not be possible to detect part of the detection frame 301.

In such a case, the correction unit 710 of the notification control device 101 notifies that the detection frame 301 cannot be corrected, for example, by flashing the LED 608 of the information collection device 102 red. As a result, for example, a medical professional near the bed 103 can determine that the position of the bed 103 is misaligned when the LED 608 of the information collection device 102 is flashing red, and can correct the position of the bed 103. Also, a medical professional near the bed 103 can recognize that the position of the bed 103 is correct when the LED 608 of the information collection device 102 is not flashing red.

<Processing flow>
15 is a flowchart showing an example of detection window correction processing according to the third embodiment. This processing shows an example of detection window correction processing executed by the notification control device 101 when correcting the detection window 301.

In step S1501, the correction unit 710 of the notification control device 101 acquires the photo data of the bed 103 transmitted from the information collection device 102. For example, the correction unit 710 acquires the photo data included in the user information received by the information receiving unit 702.

In step S1502, the correction unit 710 of the notification control device 101 detects the position of the bed 103 from the photographic data of the bed 103. For example, the correction unit 710 analyzes the photographic data and extracts the contour of the bed 103.

In step S1503, the correction unit 710 of the notification control device 101 determines whether the position of the bed 103 is misaligned with respect to the detection frame 301. For example, as shown in FIG. 14(a), the correction unit 710 determines that the position of the bed 103 is not misaligned if the outline of the bed is in the correct position with respect to the detection frame 301 and the small area 302 within the detection frame 301. On the other hand, as shown in FIG. 14(b), the correction unit 710 determines that the position of the bed 103 is misaligned if the outline of the bed is not in the correct position with respect to the detection frame 301 and the small area 302 within the detection frame 301.

If the position of the bed 103 is not misaligned, the correction unit 710 transitions the process to step S1504. On the other hand, if the position of the bed 103 is misaligned, the correction unit 710 transitions the process to step S1505.

When the process proceeds to step S1504, the correction unit 710 of the notification control device 101 notifies the information collection device 102 that the detection frame 301 has been successfully corrected, and ends the process. As a result, if the LED 608 is blinking red, the information collection device 102 stops blinking red with the LED 608, and if the LED 608 is not blinking red, the information collection device 102 continues the state in which the LED 608 is not blinking red.

On the other hand, when the process moves from step S1503 to step S1505, the correction unit 710 of the notification control device 101 corrects the position of the detection frame 301 to match the position of the bed 103, for example, as shown in FIG. 14(c). For example, the correction unit 710 moves, rotates, enlarges, or reduces the detection frame 301, thereby adjusting the detection frame 301 and the small area 302 within the detection frame 301 so that the outline of the bed is in the correct position.

In step S1506, the correction unit 710 of the notification control device 101 determines whether the correction of the detection frame 301 was successful. For example, as shown in FIG. 14(c), the correction unit 710 determines that the correction was successful when it becomes possible to detect the detection frame 301 and the small area 302 within the detection frame 301. On the other hand, as shown in FIG. 14(d), the correction unit 710 determines that the correction was unsuccessful when it is unable to detect the contour of the bed 103 or when it is unable to detect part of the detection frame 301 and the small area 302 within the detection frame 301.

If the correction of the detection frame 301 is successful, the correction unit 710 transitions the process to step S1504. On the other hand, if the correction of the detection frame 301 is unsuccessful, the correction unit 710 transitions the process to step S1507.

When the process proceeds to step S1507, the correction unit 710 of the notification control device 101 notifies the information collection device 102 that the correction of the detection frame 301 has failed, and the process returns to step S1501. As a result, if the LED 608 is not blinking red, the information collection device 102 starts blinking red with the LED 608, and if the LED 608 is blinking red, the information collection device 102 continues blinking red with the LED 608.

By performing the above process, medical personnel can easily determine that the position of the bed 103 is misaligned and can correct the position of the bed 103.

100 Notification control system 101 Notification control device 102 Information collection device 103 Bed 702 Information receiving unit 703 Detection unit 704 Notification control unit 705 ID management unit (identification information management unit)
706 Corresponding information providing unit (first information providing unit)
707 Display control unit 708 Audio discrimination unit (discrimination unit)
709 Audio information providing unit (second information providing unit)
710 Correction unit 722 Image data acquisition unit 723 ID receiving unit (identification information receiving unit)
724 Information transmission unit 725 Voice data acquisition unit 727 Display unit

JP 2013-211607 A

Claims (9)

A notification control system including an information collecting device and a notification control device capable of communicating with the information collecting device via a network,
The information collecting device includes:
an image data acquisition unit that captures temperature image data of a bed installed in the facility and the area around the bed;
an ID receiving unit that receives a wireless ID from a wireless tag located in the bed or in the vicinity of the bed;
an information sending unit that sends information about a user of the bed, the information including the temperature image data, when the ID receiving unit receives the wireless ID, the information about the user further including the wireless ID to the notification control device;
having
The notification control device includes:
an information receiving unit for receiving information of the user;
a detection unit that detects the head of the user by detecting an area that is at a predetermined temperature and corresponds to a size of the head using the temperature image data included in the information of the user;
a notification control unit that notifies a predetermined notification destination of notification information indicating a state of the user based on a detection result by the detection unit;
having
The notification control unit,
when the head, which had been detected on the bed, is detected by the detection unit in a fall detection area provided around the bed and is no longer detected within a detection frame set within an imaging range of the information collecting device within a predetermined time, the notification information including bed exit detection information indicating that the user has left the bed is sent to the predetermined notification destination;
when the head, which has not been detected within the detection frame, is detected in the fall detection area by the detection unit and the wireless ID of a medical worker is not included in the information of the user, notifying the predetermined notification destination of the notification information including return-to-bed detection information indicating that the user has returned to bed;
When the head that has not been detected within the detection frame is detected in the fall detection area by the detection unit and the wireless ID of a medical worker is included in the information of the user, the process of notifying the predetermined notification destination of the notification information including the return-to-bed detection information is stopped.
Notification control system. The notification control device includes:
an identification information management unit that manages the wireless ID of the medical worker;
a first information providing unit that provides information for visualizing the response of the medical staff to the user of the bed by using a wireless ID of the medical staff included in the information of the user received by the information receiving unit;
The notification control system of claim 1 . The information of the user includes voice data collected from the bed and the surrounding area of the bed,
The notification control device includes:
a discrimination unit that discriminates a type of sound included in the voice data by using the temperature image data and the voice data included in the user information;
a second information providing unit that provides information including a result of the determination by the determining unit and an image showing a temperature of the bed and an area around the bed;
The notification control system according to claim 1 or 2, further comprising: The notification control device includes:
A correction unit that corrects the position of one or more detection areas that are preset around the bed in response to a change in the position of the bed;
a display control unit that, when the correction unit cannot correct the position of the detection area, displays, on a display unit on the bed or around the bed, display information indicating that the position of the detection area cannot be corrected;
The notification control system according to claim 1 , further comprising: The notification control system according to claim 3, wherein the information collection device has a voice data acquisition unit that acquires voice data from the bed and the area around the bed. The notification control system according to any one of claims 1 to 5, wherein the information collection device has a display unit that displays display information indicating that the medical staff is present at or near the bed when the medical staff is present at or near the bed. The notification control system according to claim 4, wherein the information collection device has a display unit that displays display information indicating that the position of the detection area cannot be corrected when the correction unit cannot correct the position of the detection area. A notification control method in a notification control system including an information collecting device and a notification control device capable of communicating with the information collecting device via a network,
The information collecting device,
A process of photographing temperature image data of a bed installed in the facility and the surrounding area of the bed;
an ID receiving process for receiving a wireless ID from a wireless tag located in the bed or in the vicinity of the bed;
a process of transmitting information about a user of the bed, the information including the temperature image data, and further including the wireless ID when the wireless ID is received in the ID receiving process, to the notification control device;
Run
The notification control device,
receiving information about the user;
a detection process for detecting the head of the user by detecting an area having a predetermined temperature and corresponding to a size of the head using the temperature image data included in the information of the user;
a notification control process for notifying a predetermined notification destination of notification information indicating a state of the user based on a detection result of the detection process;
Run
The notification control process includes:
When the head, which had been detected on the bed, is detected in a fall detection area provided around the bed and is no longer detected within a detection frame set within an imaging range of the information collecting device within a predetermined time, the notification information including bed exit detection information indicating that the user has left the bed is sent to the predetermined notification destination,
when the head, which has not been detected within the detection frame, is detected in the fall detection area by the detection process and the wireless ID of a medical worker is not included in the information of the user, notifying the predetermined notification destination of the notification information including return-to-bed detection information indicating that the user has returned to bed;
When the head that has not been detected within the detection frame is detected within the fall detection area by the detection process and the wireless ID of a medical worker is included in the information of the user, a process of notifying the predetermined notification destination of the notification information including the return-to-bed detection information is stopped.
Notification control methods. A program for causing a notification control system to execute the notification control method described in claim 8.

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