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Medical care location and warning method based on wireless sensor network

A wireless sensor network and message technology, applied in wireless communication, network topology, electrical components, etc., can solve the problems of limited network scale and business expansion, difficult medical care positioning and alarm system, etc.

Active Publication Date: 2013-03-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing medical positioning and alarm system is difficult to locate the multi-layer environment, and the network scale and business expansion are seriously limited, so as to provide a medical positioning and alarm system based on wireless sensor network. Alarm method

Method used

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  • Medical care location and warning method based on wireless sensor network
  • Medical care location and warning method based on wireless sensor network
  • Medical care location and warning method based on wireless sensor network

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Experimental program
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specific Embodiment approach 1

[0066] Specific implementation mode 1. Combination figure 1 and Figure 9 Describe this specific implementation mode, based on the wireless sensor network medical care positioning and alarm method, it is realized by the following steps:

[0067] Step 1. In each floor, set up a control center and N anchor nodes. The control center and N anchor nodes form a cluster, in which the control center is the cluster head, and N anchor nodes are cluster members; N is positive integer;

[0068] Cluster heads on each floor can communicate with each other, but cluster members in different clusters cannot communicate with each other;

[0069] Step 2, each node in the cluster in each floor is powered on, and the cluster head broadcasts a Route message, which includes cluster ID, message sequence number and rank, and the initial value of rank is 0;

[0070] Step 3, after receiving the Route message, each anchor node judges whether it belongs to the cluster according to the cluster ID in the...

specific Embodiment approach 2

[0102] Embodiment 2. This embodiment is a further limitation of the wireless sensor network-based medical positioning and alarm method described in Embodiment 1:

[0103] The method for assisting positioning described in step A111 and step A12 is:

[0104] Step E1, after the control center on the floor where the patient terminal belongs receives the Assist message, it forwards the message to the anchor node of the cluster where the control center is located, and executes step E2;

[0105] Step E2. After receiving the Assist message, each anchor node judges whether the machine belongs to the cluster according to the cluster ID in the Assist message. If the judgment result is no, then execute step E21; if the judgment result is yes, then execute step E2. E22;

[0106] Step E21, discarding the received Assist message;

[0107] Step E22, the anchor node judges whether the same request has been received according to the serial number in the Assist message, if the judgment result is...

specific Embodiment approach 3

[0117] Specific embodiment three. This specific embodiment is a further limitation of the wireless sensor network-based medical positioning and alarm method described in specific embodiment one:

[0118] It can also realize patient terminal roaming, the method of patient terminal roaming is:

[0119] Step C1. During the establishment of the routing table, the patient terminal synchronously receives the Route message broadcast by the anchor node or the control center on the floor where the patient terminal is located;

[0120] Step C2, the patient terminal judges whether the patient terminal is on the floor to which the anchor node or the control center belongs according to the cluster ID in the received Route message, if the judgment result is yes, then repeat step C1; if the judgment result is no, then execute Step C21;

[0121] Step C21, the patient terminal broadcasts a Roaming message, and records the received cluster ID in the Route message broadcast by the anchor node o...

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Abstract

The invention discloses a medical care location and warning method based on a wireless sensor network, relates to a medical care location and warning method and aims to solve the problems that existing medical care location and warning systems are difficult to locate multilayer environments and are severely limited on network size and business expansion. A system for implementing the method comprises a control center, an anchor node and a portable patient terminal. The control center and the anchor node of each floor form a cluster, the control center is used as a cluster head and cyclically initiates an establishing process of a directed loop-free route of the cluster, the anchor nodes can not communicated by crossing floors, and the control centers are in a wired connection. The control center locate the patient terminal through the anchor node, when a patient has an abnormal physical signal, a warning is sent to the control center through the anchor nodes in a multi-hop mode, when the patient terminal is roamed to other floors, a report is sent to the control center of the floor through the anchor nodes in the multi-hop mode, and the control center of the floor informs the control center which the terminal belongs to. The medical care location and warning method based on the wireless sensor network is applicable to wards of a hospital.

Description

technical field [0001] The invention relates to a medical positioning and alarm method. Background technique [0002] At present, there are accident alarm equipment and hospital ward wireless call system for the "empty nest" elderly in China. The former sends an alarm message through wireless signals when the user has an accident, and uses GPS to locate the user; the latter uses ZigBee and other equipment to monitor the ward. position. For the former, GPS cannot cope well with the complex multi-storey environment in the hospital building, while the latter is limited to the positioning of the ward and cannot serve patients who go out. Some foreign scholars have proposed a ZigBee-based care system for the elderly, but ZigBee has certain limitations in network scale and business expansion due to its limited speed and bandwidth. Contents of the invention [0003] The present invention aims to solve the problem that the existing medical positioning and alarm system is difficu...

Claims

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Application Information

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IPC IPC(8): H04W40/24H04W64/00H04W84/18
Inventor 叶亮李月石硕沙学军孟维晓吴少川李卓明
Owner HARBIN INST OF TECH
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