WO2018158907A1 - Monitoring system - Google Patents

Abstract

Provided is a monitoring system that is capable of determining validity of monitoring data with a simple configuration. The monitoring system according to the present invention is provided with a first monitoring device (2a) that records first monitoring data (9) indicative of an operating state of equipment being monitored (1), and a second monitoring device (2b) that is capable of communicating with the first monitoring device (2a) and that records second monitoring data (11) indicative of the operating state of the equipment being monitored (1) in a form different from a form of the first monitoring data (9). The first monitoring device (2a) has a determination unit (6) that determines validity of the first monitoring data (9) and the second monitoring data (11), on the basis of similarity between first change point information (10) indicative of a time when the amount of change in the first monitoring data (9) exceeds a given value, and second change point information (12) indicative of a time when the amount of change in the second monitoring data (11) exceeds a given value.

Description

Monitoring system

The present invention relates to a monitoring system.

Conventionally, a monitoring system for monitoring the operating state of a device is known. The monitoring system can include, for example, a monitoring device that records monitoring data at the installation location of the device. In addition, the monitoring system may include a monitoring device that records monitoring data via a network at a location different from the installation location of the device, for example. For example, Patent Document 1 below describes an elevator monitoring system.

Japanese Unexamined Patent Publication No. 2014-47064

In the monitoring system, for example, monitoring data may not be recorded correctly due to problems such as monitoring device failure, network failure, or data alteration. The introduction of technology for detecting these problems complicates the system configuration.

The present invention has been made to solve the above problems. An object of the present invention is to provide a monitoring system that can determine the validity of monitoring data with a simple configuration.

A monitoring system according to the present invention is capable of communicating with a first monitoring device that records first monitoring data indicating an operation state of a monitoring target device, and the first monitoring device, and is a monitoring target in a format different from the first monitoring data. A second monitoring device that records second monitoring data indicating an operation state of the device. The first monitoring device includes first change point information indicating a time when a change amount of the first monitoring data exceeds a certain value, and second change point information indicating a time when the change amount of the second monitoring data exceeds a certain value. A determination unit that determines the validity of the first monitoring data and the second monitoring data based on the similarity.

In the present invention, the determination unit determines the validity of the first monitoring data and the second monitoring data based on the similarity between the first change point information and the second change point information. Therefore, according to the present invention, it is possible to determine the validity of the monitoring data with a simple configuration.

2 is a functional block diagram of a monitoring system in Embodiment 1. FIG. 3 is a first flowchart illustrating an operation example of the monitoring system according to the first embodiment. 6 is a second flowchart illustrating an operation example of the monitoring system according to the first embodiment. 1 is a schematic diagram illustrating an example of a monitoring system in a first embodiment. 6 is a diagram illustrating an example of change point information according to Embodiment 1. FIG. It is a hardware block diagram of a monitoring apparatus.

The monitoring system will be described in detail with reference to the attached drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.

Embodiment 1 FIG.
FIG. 1 is a functional block diagram of the monitoring system according to the first embodiment. The monitoring system monitors the operating state of the monitoring target device 1.

As shown in FIG. 1, the monitoring system includes a plurality of monitoring devices 2. FIG. 1 illustrates a first monitoring device 2 a and a second monitoring device 2 b as the monitoring device 2. The monitoring system may include three or more monitoring devices 2.

Among the plurality of monitoring devices 2, for example, the monitoring device 2 provided in a building where the monitoring target device 1 is installed may be included. In the some monitoring apparatus 2, the monitoring apparatus 2 provided in the building different from the building in which the monitoring object apparatus 1 was installed may be included, for example.

Each monitoring device 2 can acquire data indicating the operating state of the monitoring target device 1. The monitoring device 2 may be electrically connected to the monitoring target device 1, for example. For example, the monitoring device 2 may communicate with the monitoring target device 1 via a network. For example, the monitoring device 2 may acquire data indicating the operation state of the monitoring target device 1 indirectly through another device (not shown). The monitoring device 2 records the acquired data as monitoring data.

Each monitoring device 2 can communicate with at least one other monitoring device 2. For example, the monitoring device 2 may be electrically connected to another monitoring device 2. The monitoring device 2 may communicate with another monitoring device 2 via a network, for example.

As shown in FIG. 1, the first monitoring device 2 a includes a first monitoring unit 3, a first change point information management unit 4, an information acquisition unit 5, and a determination unit 6. The second monitoring device 2 b includes a second monitoring unit 7 and a second change point information management unit 8. In addition, the information acquisition part 5 and the determination part 6 may be provided also in the 2nd monitoring apparatus 2b.

The first monitoring unit 3 acquires data indicating the operating state of the monitoring target device 1. The first monitoring unit 3 records the acquired data as first monitoring data 9. The first monitoring data 9 is, for example, data over time indicating the operating state of the monitoring target device 1. The first monitoring data 9 is represented by a physical quantity, for example.

The second monitoring unit 7 acquires data indicating the operating state of the monitoring target device 1. The second monitoring unit 7 records the acquired data as second monitoring data 11. The second monitoring data 11 is, for example, data with time indicating the operating state of the monitoring target device 1. The format of the second monitoring data 11 is different from the format of the first monitoring data 9. The second monitoring data 11 is represented by a physical quantity different from the first monitoring data 9, for example.

The first change point information management unit 4 extracts change point information from the first monitoring data 9. The first change point information management unit 4 stores the change point information as first change point information 10. The first change point information 10 is information indicating, for example, the time when the change amount of the first monitoring data 9 exceeds a predetermined value set in advance.

The second change point information management unit 8 extracts change point information from the second monitoring data 11. The second change point information management unit 8 stores the change point information as second change point information 12. The second change point information 12 is information indicating, for example, the time when the change amount of the second monitoring data 11 exceeds a predetermined value set in advance.

The information acquisition unit 5 acquires information from the second monitoring device 2b. The information acquisition unit 5 acquires the second change point information 12 from the second monitoring device 2b, for example.

The determination unit 6 determines the validity of the first monitoring data 9 and the second monitoring data 11. The determination unit 6 performs determination based on, for example, the similarity between the first change point information 10 extracted by the first change point information management unit 4 and the second change point information 12 acquired by the information acquisition unit 5. .

When the similarity between the first change point information 10 and the second change point information 12 is equal to or higher than a preset reference, the determination unit 6 validates both the first monitoring data 9 and the second monitoring data 11. Judge that there is. The determination unit 6 determines that at least one of the first monitoring data 9 and the second monitoring data 11 is not valid when the similarity is less than the reference.

FIG. 2 is a first flowchart showing an operation example of the monitoring system in the first embodiment. FIG. 2 shows processing that is always performed for each monitoring device 2.

The monitoring device 2 records the operation state of the monitoring target device 1 as monitoring data (step S101). The monitoring device 2 determines whether or not the change amount of the monitoring data exceeds a certain value (step S102). If it is determined in step S102 that the change amount of the monitoring data does not exceed a certain value, the process of step S101 is performed.

When it is determined in step S102 that the change amount of the monitoring data exceeds a certain value, the monitoring device 2 stores the time when the change amount of the monitoring data exceeds the certain value as change point information (step S103). After step S103, the process of step S101 is performed.

In the first monitoring device 2a, the process in step S101 is performed by the first monitoring unit 3. In the first monitoring device 2a, the processes of step S102 and step S103 are performed by the first change point information management unit 4.

In the second monitoring device 2b, the processing in step S101 is performed by the second monitoring unit 7. In the second monitoring device 2b, the processes in steps S102 and S103 are performed by the second change point information management unit 8.

FIG. 3 is a second flowchart illustrating an operation example of the monitoring system according to the first embodiment. FIG. 3 shows a process for determining the validity of the monitoring data.

The information acquisition unit 5 of the first monitoring device 2a acquires the change point information stored in the second monitoring device 2b (step S201). The determination unit 6 of the first monitoring device 2a evaluates the similarity of the change point information stored in each monitoring device 2 (step S202). The determination unit 6 determines whether the similarity is less than a reference (step S203).

In step S203, for example, when the time indicated by the first change point information 10 coincides with the time indicated by the second change point information 12, the determination unit 6 determines that the similarity is greater than or equal to the reference. In step S203, for example, the determination unit 6 determines that the similarity is less than the reference when the time indicated by the first change point information 10 and the time indicated by the second change point information 12 do not match.

Note that, for example, when the time difference between the time indicated by the first change point information 10 and the time indicated by the second change point information 12 is within a preset range, the determination unit 6 has a similarity greater than or equal to a reference. May be determined. For example, when the time difference between the time indicated by the first change point information 10 and the time indicated by the second change point information 12 is outside the range, the determination unit 6 determines that the similarity is less than the reference. Good. The range is set, for example, for 1 second.

When it is determined in step S203 that the similarity is less than the reference, the determination unit 6 determines that at least one of the monitoring data of the first monitoring device 2a and the second monitoring device 2b is not valid (step S204). ). If it is determined in step S203 that the similarity is greater than or equal to the reference, the determination unit 6 ends the processing assuming that there is no problem in the monitoring data of the first monitoring device 2a and the second monitoring device 2b.

FIG. 4 is a schematic diagram illustrating an example of a monitoring system according to the first embodiment. FIG. 4 illustrates a monitoring system that monitors the operating state of the elevator.

In the example shown in FIG. 4, there are a plurality of elevators 13 as the monitoring target device 1. The elevator 13a, the elevator 13b, and the elevator 13c are installed in the same building, for example. A surveillance camera 14 is provided in the building. The surveillance camera 14 is provided in, for example, an elevator car or a landing. The range imaged by the monitoring camera 14 includes, for example, an elevator door. The monitoring camera 14a is provided corresponding to the elevator 13a. The monitoring camera 14b is provided corresponding to the elevator 13b. The surveillance camera 14c is provided corresponding to the elevator 13c.

In the example shown in FIG. 4, a recorder 15 is provided as the first monitoring device 2a. The recorder 15 is provided, for example, in a building where the elevator 13 is installed. The recorder 15 is electrically connected to the monitoring camera 14. The recorder 15 collects video data captured by the monitoring camera 14a, the monitoring camera 14b, and the monitoring camera 14c. The recorder 15 records the collected video data for each corresponding elevator 13. The recorder 15 functions as a local monitoring device for the elevator 13.

In the example shown in FIG. 4, the data collection device 16 is provided in the building where the elevator 13 is installed. The data collection device 16 is electrically connected to, for example, a control device for the elevator 13. The data collection device 16 collects operation data of the elevator 13a, the elevator 13b, and the elevator 13c. The operation data includes, for example, car position information, door opening / closing information, call registration information, and an operation mode.

In the example shown in FIG. 4, a central monitoring center 17 is provided as the second monitoring device 2b. The central monitoring center 17 is provided in a building different from the building where the elevator 13 is installed, for example. The central monitoring center 17 can communicate with the data collection device 16. The central monitoring center 17 receives operation data from the data collection device 16. The central monitoring center 17 records the received operation data for each corresponding elevator 13. The central monitoring center 17 serves as a center side monitoring device for the elevator 13.

In the example shown in FIG. 4, the recorder 15 records the video data of the elevator 13 acquired via the monitoring camera 14 as the first monitoring data 9. For example, the recorder 15 extracts the door opening time and the door closing time of the door of the elevator 13 as change point information from the video data. For example, the recorder 15 extracts the time when the door shown in the video is in the door open state as the door open time. For example, the recorder 15 extracts the time when the door shown in the video is in the door-closed state as the door-closing time. For example, the recorder 15 stores the extracted door opening time and door closing time as the first change point information 10.

The door open state and the door closed state of the door are detected based on, for example, changes in the brightness, brightness, color, or shade of the image. When a passenger or a passing person is captured by the surveillance camera 14, the door is opened and closed more accurately by applying a mask to the image and deleting the image data other than the door. Can be detected.

In the example shown in FIG. 4, the central monitoring center 17 records the operation data of the elevator 13 acquired via the data collection device 16 as the second monitoring data 11. For example, the central monitoring center 17 extracts the door opening time and the door closing time of the door of the elevator 13 as changing point information from the door opening / closing information included in the operation data. For example, the central monitoring center 17 stores the extracted door opening time and door closing time as the second change point information 12.

In the example shown in FIG. 4, the recorder 15 can communicate with the central monitoring center 17 via a network 18 such as the Internet. For example, the recorder 15 downloads the second change point information 12 stored in the second monitoring device 2b. For example, the recorder 15 compares the door opening time of the first changing point information 10 with the door opening time of the second changing point information 12. For example, the recorder 15 compares the door closing time of the first change point information 10 with the door closing time of the second change point information 12.

FIG. 5 is a diagram illustrating an example of change point information according to the first embodiment. FIG. 5 shows change point information extracted from the monitoring data in the example shown in FIG.

According to the example shown in FIG. 5, the door opening time recorded in the recorder 15 which is the local side monitoring device coincides with the door opening time recorded in the central monitoring center 17 which is the center side monitoring device. On the other hand, the door closing time recorded in the recorder 15 as the local monitoring device does not coincide with the door closing time recorded in the central monitoring center 17 as the center monitoring device. In this case, the recorder 15 determines that at least one of the monitoring data of the recorder 15 and the central monitoring center 17 is not valid.

In the example shown in FIG. 4, the case where the recorder 15 operates as the first monitoring device 2a and the central monitoring center 17 operates as the second monitoring device 2b has been described. However, for example, if the central monitoring center 17 has the functions of the information acquisition unit 5 and the determination unit 6, the central monitoring center 17 operates as the first monitoring device 2a, and the recorder 15 operates as the second monitoring device 2b. May be. That is, the central monitoring center 17 may perform a comparison operation between the first change point information 10 and the second change point information 12.

In Embodiment 1, the monitoring system includes a first monitoring device 2a and a second monitoring device 2b. The first monitoring device 2a records first monitoring data 9 indicating the operation state of the monitoring target device 1. The second monitoring device 2b is communicable with the first monitoring device 2a, and records the second monitoring data 11 indicating the operation state of the monitoring target device 1 in a format different from the first monitoring data 9. The first monitoring device 2 a includes a determination unit 6 that determines the validity of the first monitoring data 9 and the second monitoring data 11 based on the similarity between the first change point information 10 and the second change point information 12. . Therefore, according to the first embodiment, it is possible to determine the validity of the monitoring data with a simple configuration.

In the first embodiment, the determination unit 6 validates both the first monitoring data 9 and the second monitoring data 11 when the similarity between the first change point information 10 and the second change point information 12 is equal to or higher than a reference. If the similarity is less than the reference, it is determined that at least one of the first monitoring data 9 and the second monitoring data 11 is not valid. Therefore, according to the first embodiment, it is possible to determine the validity of the monitoring data with a simple configuration.

In the first embodiment, the first monitoring device 2a includes a first change point information management unit 4 and an information acquisition unit 5. The first change point information management unit 4 extracts the first change point information 10 from the first monitoring data 9. The information acquisition unit 5 acquires information from the second monitoring device 2b. The second monitoring device 2b includes a second change point information management unit 8. The second change point information management unit 8 extracts the second change point information 12 from the second monitoring data 11. The determination unit 6 is extracted by the first change point information 10 extracted by the first change point information management unit 4 and the second change point information management unit 8 and acquired by the information acquisition unit 5 from the second monitoring device 2b. Based on the degree of similarity with the second change point information 12, the validity of the first monitoring data 9 and the second monitoring data 11 is determined. For this reason, according to Embodiment 1, the 2nd monitoring apparatus 2b does not need to have the information acquisition part 5 and the determination part 6. FIG. As a result, the validity of the monitoring data can be determined with a simple configuration.

In the first embodiment, one of the first monitoring data 9 and the second monitoring data 11 is, for example, video data. The other of the first monitoring data 9 and the second monitoring data 11 is data obtained electrically from, for example, the monitoring target device 1 or the control device of the monitoring target device 1. Therefore, according to the first embodiment, it is possible to determine the legitimacy of different types of monitoring data.

In the first embodiment, one of the first monitoring data 9 and the second monitoring data 11 is, for example, video data showing a door. The other of the first monitoring data 9 and the second monitoring data 11 is data indicating, for example, an electrically detected door opening / closing state. For this reason, according to the first embodiment, it is possible to determine the validity of the monitoring data indicating the operation state of the door.

In the first embodiment, one of the first monitoring data 9 and the second monitoring data 11 shows, for example, the door of the elevator 13 imaged by the monitoring camera 14 provided in the car of the elevator 13 or at the landing. It is video data. The other of the first monitoring data 9 and the second monitoring data 11 is, for example, data indicating the door opening / closing state of the elevator 13 that is electrically detected. For this reason, according to Embodiment 1, the correctness of the monitoring data which shows the operation state of an elevator can be determined.

In the first embodiment, one of the first monitoring data 9 and the second monitoring data 11 is, for example, the display device of the elevator 13 captured by the monitoring camera 14 provided in the car of the elevator 13 or at the landing. It may be video data. The display device is, for example, various buttons provided with an indicator or a lamp of the elevator 13. The other of the first monitoring data 9 and the second monitoring data 11 may be data indicating the operating state of the elevator 13 that is electrically detected, for example. The data is, for example, operation data of the elevator 13. In this case, for example, the validity of the monitoring data can be determined by comparing the lighting time of the destination floor button extracted from the video data with the call registration time extracted from the operation data.

In the first embodiment, the information acquisition unit 5 may acquire the second monitoring data 11 from the second monitoring device 2b, for example. For example, the first change point information management unit 4 extracts the first change point information 10 from the first monitoring data 9, and the second from the second monitoring data 11 acquired from the second monitoring device 2 b by the information acquisition unit 5. The change point information 12 may be extracted. The determination unit 6 is based on, for example, the similarity between the first change point information 10 extracted by the first change point information management unit 4 and the second change point information 12 extracted by the first change point information management unit 4. Thus, the validity of the first monitoring data 9 and the second monitoring data 11 may be determined. In this case, it is not necessary to provide the second change point information management unit 8 in the second monitoring device 2b. As a result, it is possible to determine the validity of the monitoring data with a simpler configuration.

In the first embodiment, the monitoring system may further include a third monitoring device as the monitoring device 2. The third monitoring device can communicate with, for example, the first monitoring device 2a, and indicates the operating state of the monitoring target device 1 in a format different from at least one of the first monitoring data 9 and the second monitoring data 11. Record monitoring data. The third monitoring device stores, for example, third change point information indicating the time when the amount of change in the third monitoring data exceeds a preset constant value. For example, when it is determined that at least one of the first monitoring data 9 and the second monitoring data 11 is not valid, the determination unit 6 determines the similarity between the first change point information 10 and the third change point information. Based on this, the validity of the first monitoring data 9 and the third monitoring data may be determined. In this case, it is possible to identify a monitoring device whose monitoring data is not valid.

The monitoring system in the first embodiment can be applied to, for example, monitoring equipment for automatic doors instead of elevator doors. The monitoring system in the first embodiment can be applied to, for example, determining the validity of the detection result obtained by the rotation sensor of the motor.

FIG. 6 is a hardware configuration diagram of the monitoring device.

The functions of the first monitoring unit 3, the first change point information management unit 4, the information acquisition unit 5, the determination unit 6, the second monitoring unit 7, and the second change point information management unit 8 in the monitoring device 2 are performed by a processing circuit. Realized. The processing circuit may be dedicated hardware 50. The processing circuit may include a processor 51 and a memory 52. A part of the processing circuit is formed as dedicated hardware 50, and may further include a processor 51 and a memory 52. FIG. 6 shows an example in which the processing circuit is partly formed as dedicated hardware 50 and includes a processor 51 and a memory 52.

When at least a part of the processing circuit is at least one dedicated hardware 50, the processing circuit may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or the like. The combination is applicable.

When the processing circuit includes at least one processor 51 and at least one memory 52, each function of the monitoring device 2 is realized by software, firmware, or a combination of software and firmware. Software and firmware are described as programs and stored in the memory 52. The processor 51 reads out and executes the program stored in the memory 52, thereby realizing the function of each unit. The processor 51 is also referred to as a CPU (Central Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, and a DSP. The memory 52 corresponds to, for example, a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, and an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD.

As described above, the processing circuit can realize each function of the monitoring device 2 by hardware, software, firmware, or a combination thereof.

As described above, the present invention can be used for a system for monitoring the operating state of a device.

DESCRIPTION OF SYMBOLS 1 Monitoring object apparatus 2 Monitoring apparatus 2a 1st monitoring apparatus 2b 2nd monitoring apparatus 3 1st monitoring part 4 1st change point information management part 5 Information acquisition part 6 Determination part 7 2nd monitoring part 8 2nd change point information management part 9 First monitoring data 10 First changing point information 11 Second monitoring data 12 Second changing point information 13 Elevator 13a Elevator 13b Elevator 13c Elevator 14 Monitoring camera 14a Monitoring camera 14b Monitoring camera 14c Monitoring camera 15 Recorder 16 Data collection device 17 Center Monitoring center 18 Network 50 Dedicated hardware 51 Processor 52 Memory

Claims (9)

A first monitoring device that records first monitoring data indicating an operating state of the monitoring target device;
A second monitoring device capable of communicating with the first monitoring device and recording second monitoring data indicating an operation state of the monitored device in a format different from the first monitoring data;
With
The first monitoring device includes first change point information indicating a time when a change amount of the first monitoring data exceeds a certain value and a second change indicating a time when the change amount of the second monitoring data exceeds a certain value. The monitoring system which has the determination part which determines the correctness of the said 1st monitoring data and the said 2nd monitoring data based on the similarity with point information. The determination unit determines that both the first monitoring data and the second monitoring data are valid when the similarity between the first change point information and the second change point information is equal to or higher than a reference. The monitoring system according to claim 1, wherein when the similarity is less than a reference, it is determined that at least one of the first monitoring data and the second monitoring data is not valid. The first monitoring device includes:
A first change point information management unit that extracts the first change point information from the first monitoring data;
An information acquisition unit for acquiring information from the second monitoring device;
Have
The second monitoring device has a second change point information management unit that extracts the second change point information from the second monitoring data,
The determination unit includes the first change point information extracted by the first change point information management unit and the second change point information extracted by the second change point information management unit and acquired by the information acquisition unit. The monitoring system according to claim 1, wherein validity of the first monitoring data and the second monitoring data is determined based on a similarity to the first monitoring data. The first monitoring device includes:
An information acquisition unit for acquiring the second monitoring data from the second monitoring device;
A first change point information management unit that extracts the first change point information from the first monitoring data and extracts the second change point information from the second monitoring data acquired by the information acquisition unit;
Have
The determination unit is configured based on a similarity between the first change point information extracted by the first change point information management unit and the second change point information extracted by the first change point information management unit. The monitoring system according to claim 1, wherein validity of the first monitoring data and the second monitoring data is determined. Third monitoring that is communicable with the first monitoring device and records third monitoring data indicating an operating state of the monitored device in a format different from at least one of the first monitoring data and the second monitoring data. Equipped with equipment,
When the determination unit determines that at least one of the first monitoring data and the second monitoring data is not valid, a change amount of the first change point information and the third monitoring data has a constant value. The monitoring system according to any one of claims 1 to 4, wherein validity of the first monitoring data and the third monitoring data is determined based on a similarity with third change point information indicating a time that has passed. 6. The monitoring system according to claim 1, wherein one of the first monitoring data and the second monitoring data is video data. One of the first monitoring data and the second monitoring data is video data showing a door,
The monitoring system according to claim 6, wherein the other of the first monitoring data and the second monitoring data is data indicating a door opening / closing state of the door. One of the first monitoring data and the second monitoring data is video data showing the door of the elevator taken by a monitoring camera provided in the elevator car or at the landing,
7. The monitoring system according to claim 6, wherein the other of the first monitoring data and the second monitoring data is data indicating a door open / closed state of the elevator door. One of the first monitoring data and the second monitoring data is video data in which the display device of the elevator is captured by a monitoring camera provided in an elevator car or a landing,
The monitoring system according to claim 6, wherein the other of the first monitoring data and the second monitoring data is data indicating an operating state of the elevator.

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