CN102380140B - Transfusion service system based on topological wireless network - Google Patents

Abstract

The invention discloses a transfusion service system based on a topological wireless network, which comprises an on-duty central machine and a plurality of transfusion monitoring nodes. The transfusion monitoring nodes are connected with the on-duty central machine, and further, all the transfusion monitoring nodes are connected mutually. The transfusion service system adopts the topological wireless network; a relaying concept is introduced to achieve the reliable communication between all the transfusion monitoring nodes and the on-duty central machine; the transfusion monitoring nodes can directly carry out wireless communication with the on-duty central machine; when a wireless network environment is complicated and the relationship between part of the transfusion monitoring nodes and the central machine cannot be established directly, an adjacent transfusion monitoring node is used as a relaying node and serves as a router or a father node to achieve interconnection; and finally the communication between the part of the transfusion monitoring nodes and the on-duty central machine is achieved. The transfusion service system based on the topological wireless network has the advantages of wide sphere of application, strong communication reliability, strong application flexibility and low power consumption.

Description

Infusion Service System Based on Topological Wireless Network

technical field

The invention relates to the field of alarm systems, in particular to an infusion service system based on a topological wireless network.

Background technique

At present, when a patient is undergoing infusion therapy in a hospital, the patient, the escort or the medical personnel must pay close attention to the infusion process, so as to avoid serious injury caused to the patient if the infusion is completed and not found in time. However, this process makes patients and accompanying staff very tired, and greatly reduces the work efficiency of medical staff. If the infusion process can be automatically detected, the above problems can be avoided and the efficiency of hospital infusion services can be improved.

Chinese patent 02251920.3 discloses an infrared wireless transfusion real-time monitoring system. The system is composed of a host and a slave. The host includes a PC, a monitor, a keyboard, and a wireless data transmission module. The slave includes a protection circuit, an infrared Sampling unit, frequency division circuit, microprocessor, and wireless data transmission module. The characteristic of this design is that the infusion information is monitored by the infrared acquisition unit, the transmission of the infusion information is completed by the wireless data transmission module, and the display, analysis, processing, setting and warning are realized by the microcomputer. This patent focuses on the design of the infrared detection module, and the wireless data transmission module included in it cannot guarantee the quality of the wireless signal when the structure of the ward is complex, so its application has certain limitations and its scope of application is limited.

Chinese patent ZL.200610042062.4 discloses a wireless infusion alarm. The alarm is composed of a central machine on duty, a wall-mounted machine and an infusion alarm host. Each central machine on duty is equipped with several wall-mounted machines and infusion alarm hosts. Two-way communication connection is realized between the on-duty central computers through wireless signals. Each infusion alarm host corresponds to a wall hanger. When the structure of the alarm is complex in the ward, the wireless signal quality between the infusion alarm host and the duty center cannot be guaranteed, and the above-mentioned limitations still exist.

Chinese patent 200820218566.1 discloses a medical wireless infusion monitoring device for medical infusion. It consists of an infusion monitor set on the column of the infusion stand, a receiving transmitter connected with a computer set in the nurse's office, and a mobile receiver assigned to the nurse on duty. This patent focuses on specific circuit design, but cannot solve the problem of reliable communication of wireless networks in complex environments.

Chinese patent 201010558071.5 discloses a wireless infusion detection and alarm device, including a patient terminal and a nurse station terminal; the patient terminal includes a patient terminal main control circuit and an infusion detection circuit connected to the patient terminal main control circuit through a circuit, a buzzer circuit, The battery boost circuit, the first indicator light, the first radio frequency circuit, the power supply and the switch for controlling the patient end, the battery boost circuit is also connected with the power supply, the infusion detection circuit and the buzzer circuit; the nurse station terminal includes the nurse station terminal The main control circuit and the second wireless radio frequency circuit, the second indicator light, the buzzer, the power supply and the reset response switch connected with the main control circuit of the nurse's station through the circuit; the patient's end and the nurse's station are connected through wireless transmission. The system of this kind of alarm device is too complicated, and the application flexibility is relatively poor.

To sum up, the existing technical field of infusion monitoring has the technical problems of narrow application range, poor communication reliability and poor application flexibility.

Contents of the invention

The purpose of the present invention is to provide a topological wireless network-based infusion service system to solve the technical problems of narrow application range, poor communication reliability and poor application flexibility in the existing infusion monitoring technology field.

In order to achieve the above object, the present invention provides a kind of infusion service system based on topological wireless network, comprising: a central computer on duty and some infusion monitoring nodes, the infusion monitoring nodes are connected to the central computer on duty, and each infusion monitoring node is connected to each other; wherein ,

The infusion monitoring node further includes:

The gravity sensor is connected with the monitoring node microprocessor to sense the weight of the infusion device, and converts the detected weight signal into a corresponding electrical signal and sends it to the monitoring node microprocessor;

The button detection module is connected with the monitoring node microprocessor to detect the call button operation of the patient, and converts the detected button information into a corresponding electrical signal and sends it to the monitoring node microprocessor;

The monitoring node microprocessor is used to process the received signals from the gravity sensor and the key detection module, send the processed data to the WiFi communication module, and configure the WiFi communication module;

The WiFi communication module is connected with the monitoring node microprocessor to realize the networking and communication between the infusion monitoring node and the on-duty central computer and between each infusion monitoring node, and send the received data to the wireless receiving circuit or the corresponding WiFi communication module;

The power supply module and the microprocessor of the monitoring node are used to supply power to the microprocessor of the monitoring node;

The on-duty central machine further includes:

The wireless receiving circuit is connected with the microprocessor CPU of the central computer to receive the data sent by the WiFi communication module and send the data to the microprocessor CPU of the central computer;

The central computer microprocessor CPU is used to set the infusion monitoring node; the received data is processed and sent to the LCD display screen, and the residual weight of each infusion point is compared with the threshold value, and the end-of-life The infusion monitoring node sends an alarm message;

The LCD display screen and the microprocessor CPU of the central computer are used to display the received data sent by the microprocessor CPU of the central computer.

According to the infusion service system based on the topology wireless network described in the preferred embodiment of the present invention, its WiFi communication module adopts dynamic settings to realize the networking and communication between the infusion monitoring node and the on-duty central computer and between each infusion monitoring node, specifically To: set a fixed communication partner for each infusion monitoring node according to the application scenario and the signal strength between the deployed WiFi communication modules.

According to the infusion service system based on the topology wireless network described in the preferred embodiment of the present invention, its WiFi communication module adopts intelligent detection to realize networking and communication between the infusion monitoring node and the on-duty central computer and between each infusion monitoring node, Specifically: by detecting the wireless signal strength, using an optimization algorithm to realize the dynamic communication relationship setting between network nodes, and carry out WiFi communication with the unit with the strongest signal.

According to the infusion service system based on the topology wireless network described in the preferred embodiment of the present invention, the central computer on duty also includes a non-volatile memory, and the non-volatile memory is connected with the microprocessor CPU of the central computer for storing and monitoring history information.

According to the infusion service system based on the topology wireless network described in the preferred embodiment of the present invention, its central computer on duty also includes a CPU peripheral circuit, and the CPU peripheral circuit is connected with the microprocessor CPU of the central computer; it further includes:

NAND Flash module for storage systems and applications;

SDRAM module, used to store programs during system operation;

Clock module and JTAG module for system debugging;

The LCD module is used to debug the running status of the program and display it through the LCD display.

According to the infusion service system based on the topological wireless network described in the preferred embodiment of the present invention, the central computer microprocessor CPU adopts the ARM920T chip.

According to the infusion service system based on the topology wireless network described in the preferred embodiment of the present invention, the microprocessor of the monitoring node adopts the CC2430 chip, and the WiFi communication module is integrated in the CC2430 chip.

According to the infusion service system based on topological wireless network described in the preferred embodiment of the present invention, its WiFi communication module adopts IEEE 802.X protocol for communication.

In order to achieve the above object, the present invention also provides a method for infusion service based on topological wireless network, comprising the following steps:

(1) The on-duty central computer adopts a fixed power supply, powers on for initialization, and starts the application program; the infusion monitoring point uses batteries, and is initialized after power-on, and according to the application scenario and the signal strength between the well-arranged WiFi communication modules, for each A WiFi communication module sets a fixed communication partner;

(2) The doctor sets the alarm threshold for each infusion terminal on the duty center computer according to the patient's medication;

(3) Each infusion monitoring node adopts intermittent sleep mode, calculates the infusion bottle/bag and the amount of medicine contained in it every few seconds, and transmits the information to the partner node, and finally transmits it to the on-duty central computer. show;

(4) The on-duty central computer compares the residual weight of each infusion point with the threshold value, predicts the remaining infusion time of the infusion point, and sends an alarm message to the infusion monitoring node that is about to end.

In order to achieve the above object, the present invention further provides a topological wireless network-based infusion service method, comprising the following steps:

(1) The on-duty central computer adopts a fixed power supply, which is initialized when it is powered on, and the application program is started; the infusion monitoring point uses a battery, which is initialized after power-on, and by detecting the strength of the wireless signal, an optimization algorithm is used to realize the dynamic communication relationship between network nodes Setting, the WiFi communication module performs WiFi communication with the unit with the strongest signal;

(2) The doctor sets the alarm threshold for each infusion terminal on the duty center computer according to the patient's medication;

(3) Each infusion monitoring node adopts intermittent sleep mode, calculates the infusion bottle/bag and the amount of medicine contained in it every few seconds, and transmits the information to the partner node, and finally transmits it to the on-duty central computer. show;

(4) The on-duty central computer compares the residual weight of each infusion point with the threshold value, predicts the remaining infusion time of the infusion point, and sends an alarm message to the infusion monitoring node that is about to end.

The present invention adopts a topological wireless network and introduces the concept of relay to realize reliable communication between all infusion monitoring nodes and the on-duty central computer. The infusion monitoring node can not only directly communicate wirelessly with the on-duty central computer. When the central computer cannot directly establish a connection, the adjacent infusion monitoring node acts as a relay node, acting as a router or a parent node to achieve interconnection, and finally realizes communication with the on-duty central computer. Compared with the prior art, the present invention has the following advantages:

(1) The infusion monitoring node of the present invention can not only directly communicate wirelessly with the on-duty central computer, but also act as a relay node, acting as a router or a parent node when the network environment is complex, and finally realize the communication between the child node and the on-duty central computer. Therefore, it can be widely used in various environments and has a wide range of applications.

(2) The present invention adopts a reliable wireless communication topology mechanism, introduces the concept of relay to realize reliable communication between all infusion monitoring nodes and the on-duty central computer, and uses IEEE802.X protocol to realize reliable communication between nodes, effectively ensuring communication quality , Communication reliability is strong.

(3) Through the introduction of the relay concept, the position of the infusion monitoring nodes can be set arbitrarily. Even when all the infusion monitoring nodes cannot establish a connection with the on-duty central computer, these The infusion node acts as a router or a parent node, and finally realizes interconnection, the system structure is simple, and the application flexibility is strong.

(4) The WiFi communication module of the present invention adopts dynamic setting and intelligent detection to set the communication relationship at the same time, and can realize the communication setting of the node pair based on the communication quality optimization.

(5) The infusion monitoring node of the present invention is powered by batteries, which reduces the impact of layout and wiring on the hospital environment, and adopts a low-voltage, low-power design, which effectively prolongs the working time of the nodes. the

(6) The on-duty central computer adopts an embedded operating system, which can realize the interconnection with the hospital prescription system.

Description of drawings

Fig. 1 is the block diagram of the structure of the infusion service system based on topological wireless network of the present invention;

Fig. 2 is a structural principle block diagram of a kind of duty central machine of the embodiment of the present invention;

Fig. 3 is the connection schematic diagram of a kind of central computer microprocessor CPU and CPU peripheral circuit of the embodiment of the present invention;

FIG. 4 is a structural principle block diagram of an infusion monitoring node according to an embodiment of the present invention;

Fig. 5 is a routing principle diagram of an infusion monitoring node according to an embodiment of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings.

Please refer to Fig. 1 to Fig. 4 at the same time, a kind of infusion service system based on topological wireless network, comprises: an on-duty central computer 10 and several infusion monitoring nodes 20, infusion monitoring node 20 is connected to on-duty central computer 10, and each infusion monitoring node 20 interconnected. The infusion monitoring node 20 can communicate directly with the on-duty central computer 10, and the infusion monitoring nodes 20 can also communicate with each other. In an infusion service system, there is one central computer 10 on duty, and the number of infusion monitoring nodes 20 can be dynamically configured. The communication between the infusion monitoring nodes 20 and the on-duty central computer 10 adopts the IEEE 802.X protocol.

As shown in FIG. 2 and FIG. 3 , the on-duty central computer 10 includes: central computer microprocessor CPU101 , wireless receiving circuit 103 , LCD display screen 105 , non-volatile memory 107 and CPU peripheral circuit 109 . in,

The wireless receiving circuit 103 is connected with the central computer microprocessor CPU101 to receive the data sent by the infusion monitoring node 20 and send the data to the central computer microprocessor CPU101. It can be connected with central computer microprocessor CPU101 through USB or Ethernet interface.

The central computer microprocessor CPU101 is used to set the infusion monitoring node 20; the received data is processed and then sent to the LCD display screen 105 and non-volatile memory 107, and the residual weight of each infusion point and the threshold value In contrast, an alarm message is sent to the infusion monitoring node that is about to end, and the alarm message includes specific audio and image information. In an embodiment of the present invention, the central computer microprocessor CPU101 adopts an ARM920T chip. After receiving the data, the microprocessor CPU101 of the central computer calculates the infusion information of the infusion node, the remaining infusion volume and the remaining infusion time to obtain the working status of the infusion point, and sends these calculation results to the LCD display screen 105 for real-time display. It is stored in the non-volatile memory 107 for subsequent query. In addition, the microprocessor CPU101 of the central computer also displays the button call information of the infusion monitoring node and gives sound and light prompts.

The LCD display screen 105 is connected with the central computer microprocessor CPU101 for displaying the received data sent by the central computer microprocessor CPU101.

The non-volatile memory 107 is connected with the central computer microprocessor CPU101 for storing monitoring history information.

CPU peripheral circuit 109 is connected with central computer microprocessor CPU101; It further comprises: NAND Flash module 111, SDRAM module 113, clock module 115, JTAG module 117 and LCD module 119. NAND Flash module 111 is used for storage system and application program; SDRAM module 113 is used for storing program during system operation; Clock module 115 and JTAG module 117 are used for system debugging; LCD module 119 is used for debugging program operation state, and through LCD display 105 for display. These modules are electrically connected with the central computer microprocessor CPU101.

As shown in FIG. 4 , the infusion monitoring node 20 includes: a gravity sensor 201 , a key detection module 203 , a monitoring node microprocessor 205 , a WiFi communication module 207 and a power supply module 209 .

The gravity sensor 201 is connected with the monitoring node microprocessor 205 to sense the weight of the infusion device (infusion bottle/bag and its liquid medicine), converts the detected weight signal into a corresponding electrical signal and sends it to the monitoring node microprocessor 205 .

The key detection module 203 is connected with the monitoring node microprocessor 205 to detect the call key operation of the patient, convert the detected key information into corresponding electrical signals and send them to the monitoring node microprocessor 205 . In practical applications, the key detection module 203 may use a switch node sensor or a switch detection circuit for emergency paging of patients.

The monitoring node microprocessor 205 is a low-power single-chip microcomputer, which is used to process the received signals sent by the gravity sensor 201 and the key detection module 203, send the processed data to the WiFi communication module 207, and send the received data to the WiFi communication module 207. 207 for configuration. In an embodiment of the present invention, the monitoring node microprocessor 201 adopts a CC2430 chip, and the WiFi communication module is integrated in the CC2430 chip.

The WiFi communication module 207 is connected with the monitoring node microprocessor 205 to realize the networking and communication between the infusion monitoring node 20 and the on-duty central computer 10 and between each infusion monitoring node 20, and send the received data to the wireless receiver The circuit 103 or the corresponding WiFi communication module 207 .

The WiFi communication module 207 of the present invention communicates with the IEEE 802.X protocol to realize wireless Ethernet communication based on the IEEE 802.X protocol.

The WiFi communication module 207 implements networking and communication between the infusion monitoring node 20 and the on-duty central computer 10 and between each infusion monitoring node 20 by means of dynamic setting and intelligent detection. The dynamic setting is: the central computer microprocessor CPU101 sets a fixed communication partner for each infusion monitoring node 20 according to the application scenario and the signal strength between the arranged WiFi communication modules 207 . Intelligent detection is: through the detection of wireless signal strength, the optimization algorithm is used to realize the dynamic communication relationship setting between network nodes, and the WiFi communication is carried out with the unit with the strongest signal.

The power supply module 209, together with the microprocessor of the monitoring node, is used to supply power to the microprocessor of the monitoring node. In one embodiment of the present invention, the power supply module 209 adopts 2 sections of 1.5V batteries. At this time, in order to prevent data errors caused by the lack of power of the batteries, the monitoring node microprocessor 205 performs power detection in real time. When it is detected that the battery power is low When the preset threshold is reached, an early warning message is sent to the on-duty central computer, prompting to replace the battery.

In addition to the above-mentioned modules, in a preferred embodiment of the present invention, the infusion monitoring node 20 may also include a memory, which provides necessary expansion of the storage capacity for the design of the infusion monitoring node 20 .

The present invention adopts a topological wireless network and introduces the concept of relay to realize reliable communication between all infusion monitoring nodes and the on-duty central computer. The infusion monitoring node can not only directly communicate wirelessly with the on-duty central computer. When the central computer cannot directly establish a connection, the adjacent infusion monitoring node acts as a relay node, acting as a router or a parent node to achieve interconnection, and finally realizes communication with the on-duty central computer. The routing principle of the present invention will be described in detail below.

As shown in Figure 5, 1 is the central computer on duty, 2-7 are infusion monitoring nodes, and 7 is a communication relay node. Except central computer 1, other nodes, ie 2 to 7, are constructed by WiFi communication module 207 (ZigBee chip). Zigbee nodes have two addresses: a 16-bit network short address and a 64-bit IEEE extended address. Among them, 16-bit network address is used inside the network for routing mechanism and data transmission. This address is dynamically assigned by its parent node when the node joins the network. A parent-child relationship is formed between nodes in the network when they allow a new node to join the network through it. In FIG. 5 , node 4 is the parent node of nodes 5 and 6 , and node 3 is the parent node of node 4 . Nodes 4, 5, 6 form a communication subnet.

When the application scene environment is ideal and the communication signal strength is good, the on-duty central computer 1 can directly serve as a router, as the root node to communicate with all infusion monitoring nodes, as shown in the communication between 1 and node 2 in Figure 5. When the environment is not ideal, some infusion nodes cannot directly establish contact with the central computer. Suppose the communication between central computer 1 and node 2 is blocked, but this node can be connected with other nodes, that is, node 2 can establish with node 3 communication. At this time, apply dynamic routing planning, and use multi-hop technology to communicate the information of node 2 with the central computer via node 3. When all the infusion monitoring nodes cannot establish a connection with the central computer, an infusion detection node, such as node 7, can be added at a suitable geographical location, and the infusion node can be used as a router or a parent node to finally realize interconnection.

The main role of routing technology is to provide services for data to reach the destination node through the communication subnet with the best path. The routing protocol is an indispensable part of the ad hoc network architecture. Its main function is to discover and maintain routes. It mainly includes the following aspects: monitoring changes in network topology, exchanging routing information, determining the location of destination nodes, generating, Maintenance and unrouting. In order to achieve the design goals of low cost, low power consumption and high reliability, this patent uses a combination of the following two algorithms as its own routing algorithm.

1) AODV: Ad-Hoc On-Demand Distance Vector (on-demand distance vector routing)

2) Cluster-Tree algorithm (tree network structure routing)

In the ZigBee network, nodes can use the Cluster-Tree algorithm to select paths according to the parent-child relationship of the network tree structure. That is, each node will try to forward the received information packet to its own descendant node. If it finds that the destination address is not one of its own descendant nodes through calculation, it will forward this data packet to its parent node of the upper level, and the parent node Perform similar judgment processing until the destination node is found. The characteristic of the Cluster-Tree algorithm is that nodes without routing functions can still send data packets and control packets through communication with their respective parent nodes, but its disadvantage is that the efficiency is not high. In order to improve efficiency, ZigBee allows nodes with routing functions to use the AODV algorithm to discover routes, so that nodes with routing functions can directly send information to other nodes within their communication range without following the parent-child relationship.

The present invention also provides a method for infusion service based on topological wireless network, comprising the following steps:

(1) The on-duty central computer adopts a fixed power supply, powers on for initialization, and starts the application program; the infusion monitoring point uses batteries, and is initialized after power-on, and according to the application scenario and the signal strength between the well-arranged WiFi communication modules, for each A WiFi communication module sets a fixed communication partner;

(2) The doctor sets the alarm threshold for each infusion terminal on the duty center computer according to the patient's medication;

(3) Each infusion monitoring node adopts intermittent sleep mode, calculates the infusion bottle/bag and the amount of medicine contained in it every few seconds, and transmits the information to the partner node, and finally transmits it to the on-duty central computer. show;

(4) The on-duty central computer compares the residual weight of each infusion point with the threshold value, predicts the remaining infusion time of the infusion point, and sends an alarm message to the infusion monitoring node that is about to end.

In step (3), the central computer microprocessor CPU101 calculates the waiting infusion information, remaining infusion volume and remaining infusion time of the infusion node after receiving the data to obtain the working status of the infusion point, and sends these calculation results to the LCD display 105 for real-time display. At the same time, the result is also sent to the non-volatile memory 107 for storage, for subsequent query.

In the above method, the central computer microprocessor CPU101 also displays the key call information of the infusion monitoring node and gives sound and light prompts. In addition, the monitoring node microprocessor 205 also detects the power supply in real time, and when it detects that the battery power is lower than the preset threshold, it sends an early warning message to the on-duty central computer, prompting to replace the battery.

The present invention also provides a method for infusion service based on a topological wireless network, comprising the following steps:

(1) The on-duty central computer adopts a fixed power supply, which is initialized when it is powered on, and the application program is started; the infusion monitoring point uses a battery, which is initialized after power-on, and by detecting the strength of the wireless signal, an optimization algorithm is used to realize the dynamic communication relationship between network nodes Setting, the WiFi communication module performs WiFi communication with the unit with the strongest signal;

(2) The doctor sets the alarm threshold for each infusion terminal on the duty center computer according to the patient's medication;

(3) Each infusion monitoring node adopts intermittent sleep mode, calculates the infusion bottle/bag and the amount of medicine contained in it every few seconds, and transmits the information to the partner node, and finally transmits it to the on-duty central computer. show;

(4) The on-duty central computer compares the residual weight of each infusion point with the threshold value, predicts the remaining infusion time of the infusion point, and sends an alarm message to the infusion monitoring node that is about to end.

In step (3), the central computer microprocessor CPU101 calculates the waiting infusion information, remaining infusion volume and remaining infusion time of the infusion node after receiving the data to obtain the working status of the infusion point, and sends these calculation results to the LCD display 105 for real-time display. At the same time, the result is also sent to the non-volatile memory 107 for storage, for subsequent query.

In the above method, the central computer microprocessor CPU101 also displays the key call information of the infusion monitoring node and gives sound and light prompts. In addition, the monitoring node microprocessor 205 also detects the power supply in real time, and when it detects that the battery power is lower than the preset threshold, it sends an early warning message to the on-duty central computer, prompting to replace the battery.

Compared with the prior art, the present invention has the following advantages:

(1) The infusion monitoring node of the present invention can not only directly communicate wirelessly with the on-duty central computer, but also act as a relay node, acting as a router or a parent node when the network environment is complex, and finally realize the communication between the child node and the on-duty central computer. Therefore, it can be widely used in various environments and has a wide range of applications.

(2) The present invention adopts a reliable wireless communication topology mechanism, introduces the concept of relay to realize reliable communication between all infusion monitoring nodes and the on-duty central computer, and uses IEEE802.X protocol to realize reliable communication between nodes, effectively ensuring communication quality , Communication reliability is strong.

(3) Through the introduction of the relay concept, the position of the infusion monitoring nodes can be set arbitrarily. Even when all the infusion monitoring nodes cannot establish a connection with the on-duty central computer, these The infusion node acts as a router or a parent node, and finally realizes interconnection, the system structure is simple, and the application flexibility is strong.

(4) The WiFi communication module of the present invention adopts dynamic setting and intelligent detection to set the communication relationship at the same time, and can realize the communication setting of the node pair based on the communication quality optimization.

(5) The infusion monitoring node of the present invention is powered by batteries, which reduces the impact of layout and wiring on the hospital environment, and adopts a low-voltage, low-power design, which effectively prolongs the working time of the nodes. the

(6) The on-duty central computer adopts an embedded operating system, which can realize the interconnection with the hospital prescription system.

The above disclosures are only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes conceivable by those skilled in the art should fall within the protection scope of the present invention.

Claims (10)

1. A transfusion service system based on a topological wireless network, characterized in that it comprises: a central computer on duty and some infusion monitoring nodes, the infusion monitoring nodes are connected to the central computer on duty, and between each of the infusion monitoring nodes interconnected; among them, The infusion monitoring node further includes: The gravity sensor is connected with the monitoring node microprocessor to sense the weight of the infusion device, and converts the detected weight signal into a corresponding electrical signal and sends it to the monitoring node microprocessor; The button detection module is connected with the monitoring node microprocessor to detect the call button operation of the patient, and converts the detected button information into a corresponding electrical signal and sends it to the monitoring node microprocessor; The monitoring node microprocessor is used to process the received signals sent by the gravity sensor and the key detection module, send the processed data to the WiFi communication module, and configure the WiFi communication module; WiFi communication module, connected with the monitoring node microprocessor, in order to realize networking and communication between the infusion monitoring node and the on-duty central computer and between each of the infusion monitoring nodes, the received data Send to the on-duty central computer or the corresponding WiFi communication module; A power supply module is connected with the microprocessor of the monitoring node to supply power to the microprocessor of the monitoring node; the central computer on duty further includes: The wireless receiving circuit is connected with the microprocessor CPU of the central computer, in order to receive the data sent by the WiFi communication module, and send the data to the microprocessor CPU of the central computer; The central computer microprocessor CPU is used to set the infusion monitoring node; the received data is processed and sent to the LCD display screen, and the residual weight of each infusion point is compared with the threshold value, and the end-of-life The infusion monitoring node sends an alarm message; The LCD display screen is connected with the microprocessor CPU of the central computer, and is used for displaying the received data sent by the microprocessor CPU of the central computer. 2. the infusion service system based on topological wireless network as claimed in claim 1, is characterized in that, described WiFi communication module adopts dynamic setting to realize between described infusion monitoring node and described on-duty central computer and each described infusion monitoring The networking and communication between nodes is specifically: according to the application scenario and the signal strength between the deployed WiFi communication modules, a fixed communication partner is set for each infusion monitoring node. 3. The infusion service system based on topological wireless network as claimed in claim 1, characterized in that, the WiFi communication module adopts intelligent detection to realize between the infusion monitoring node and the on-duty central computer and each of the infusion Monitoring the networking and communication between nodes, specifically: by detecting the wireless signal strength, using an optimization algorithm to realize the dynamic communication relationship setting between network nodes, and conducting WiFi communication with the unit with the strongest signal. 4. the infusion service system based on topological wireless network as claimed in claim 1, is characterized in that, described central computer on duty also comprises a non-volatile memory, and described non-volatile memory and described central computer microprocessing connected to the server CPU to store monitoring history information. 5. the infusion service system based on topological wireless network as claimed in claim 1, is characterized in that, described central computer on duty also comprises a CPU peripheral circuit, and described CPU peripheral circuit is connected with described central computer microprocessor CPU; It further includes: NAND Flash module for storage systems and applications; SDRAM module, used to store programs during system operation; Clock module and JTAG module for system debugging; The LCD module is used to debug the running state of the program and display it through the LCD display. 6. The infusion service system based on topological wireless network as claimed in claim 1, characterized in that, said central computer microprocessor CPU adopts ARM920T chip. 7. The infusion service system based on topological wireless network as claimed in claim 1, characterized in that, said monitoring node microprocessor adopts CC2430 chip, and said WiFi communication module is integrated in said CC2430 chip. 8. the infusion service system based on topological wireless network as claimed in claim 1, is characterized in that, described WiFi communication module adopts IEEE 802.X protocol communication. 9. An infusion service method based on a topological wireless network, comprising the following steps: (1) The on-duty central computer adopts a fixed power supply, powers on for initialization, and starts the application program; the infusion monitoring node uses a battery, and initializes after powering on, and according to the application scenario and the signal strength between the arranged WiFi communication modules, set the value for each A WiFi communication module sets a fixed communication partner; (2) The doctor sets the alarm threshold for each infusion terminal on the duty center computer according to the patient's medication; (3) Each infusion monitoring node adopts intermittent sleep mode, calculates the information of the infusion bottle/bag and the amount of medicine contained in it every few seconds, and transmits the information to the partner node, and finally transmits it to the on-duty central computer, and the on-duty central computer to display; (4) The on-duty central computer compares the residual weight of each infusion point with the threshold value, predicts the remaining infusion time of the infusion point, and sends an alarm message to the infusion monitoring node that is about to end. 10. An infusion service method based on a topological wireless network, comprising the following steps: (1) The on-duty central computer adopts a fixed power supply, powers on for initialization, and starts the application program; the infusion monitoring node uses a battery, initializes after powering on, and uses an optimization algorithm to realize a dynamic communication relationship between network nodes by detecting the strength of the wireless signal Setting, the WiFi communication module performs WiFi communication with the unit with the strongest signal; (2) The doctor sets the alarm threshold for each infusion terminal on the duty center computer according to the patient's medication; (3) Each infusion monitoring node adopts intermittent sleep mode, calculates the information of the infusion bottle/bag and the amount of medicine contained in it every few seconds, and transmits the information to the partner node, and finally transmits it to the on-duty central computer, and the on-duty central computer to display; (4) The on-duty central computer compares the residual weight of each infusion point with the threshold value, predicts the remaining infusion time of the infusion point, and sends an alarm message to the infusion monitoring node that is about to end.

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