Heartbeat detection method of wireless sensor network and apparatus thereof

A wireless sensor, heartbeat detection technology, applied in network topology, wireless communication, advanced technology and other directions, can solve the problem of wireless sensor network heartbeat detection, etc., to improve the detection speed of node failure, improve detection speed and detection accuracy, sleep long time effect

Active Publication Date: 2015-09-16
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the problem in the prior art that the wireless sensor network cannot perform effective heartbeat detection, the present invention proposes a heartbeat detection method and device for the wireless sensor network

Method used

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  • Heartbeat detection method of wireless sensor network and apparatus thereof
  • Heartbeat detection method of wireless sensor network and apparatus thereof
  • Heartbeat detection method of wireless sensor network and apparatus thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0041] Such as figure 2 As shown in , it is a schematic diagram of heartbeat cycle adjustment for a network composed of master nodes and backbone nodes. The master control node dynamically sets the heartbeat cycle according to the network conditions returned by the backbone node, including:

[0042] Step S101: Divide the health state H of the backbone node into three states: normal state, suspicious state and fault state.

[0043] In the normal state, each backbone node works normally. In the suspicious state, some backbone nodes may fail and need further detection. In the fault state, some backbone nodes are faulty.

[0044] Step S102: When the time slot of the backbone node arrives, the master control node sends the first heartbeat query information to the backbone node.

[0045] Step S103: After receiving the first heartbeat inquiry information, the backbone node sends the first heartbeat reply information including its own health status value H and communication pressur...

Embodiment 2

[0055] For a micro-sensor network composed of backbone nodes and sensor nodes, the backbone node completes the heartbeat-based fault detection process, including two parts: heartbeat prediction and fault detection, such as image 3 As shown in , it is a schematic diagram of the backbone node performing heartbeat detection on the sensor node, including:

[0056] Step S201: When the time slot of the sensor node arrives, the sensor node sends a second heartbeat query message to the backbone node.

[0057] Step S202: The backbone node saves the last K second heartbeat query information received from the sensor node, and counts the time of receiving the second heartbeat query information for the last K times.

[0058] Step S203: Establish a heartbeat prediction model based on the last K times when the second heartbeat inquiry information is received, and calculate the predicted arrival time of the K+1th second heartbeat inquiry information.

[0059] Such as Figure 4 As shown, it...

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Abstract

The invention discloses a heartbeat detection method of a wireless sensor network and an apparatus thereof. The method comprises the following steps that a master control node sends a broadcast beacon and determines whether a backbone node time slot or a sensor node time slot arrives; when the backbone node time slot arrives, the master control node sends first heartbeat inquiry information to a backbone node; after receiving the first heartbeat inquiry information, the backbone node sends first heartbeat reply information including a self-health state value H and a communication pressure value P; the master control node calculates a heartbeat service value F according to the health state value H and the communication pressure value P and dynamically adjusts a first heartbeat period according to the heartbeat service value F. By using the heartbeat detection method of the wireless sensor network and the apparatus, a backbone network and a microsensor network heartbeat period are dynamically adjusted so as to adapt to characteristics of low power dissipation and long dormancy time of an electric power wireless sensor network. A node fault detection speed and detection accuracy are increased.

Description

technical field [0001] The present invention relates to the technical field of electric power wireless sensor networks, in particular to a heartbeat detection method and device for wireless sensor networks. Background technique [0002] The wireless sensor network is considered to be one of the technologies with great influence in the 21st century. It can transmit information through the mutual cooperation between various integrated micro-sensors, thereby monitoring, sensing and collecting various real-time data, and through wireless network for transmission. The concept of micro-sensing and the wireless connection of nodes make wireless sensor network have important theoretical and practical significance in the field of power measurement and control. Wireless sensor network has a wide range of applications in the field of power because of its low cost and low power consumption. [0003] The heartbeat packet is a custom protocol, fixed information, and cyclically sent data ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00H04W84/18
CPCY02D30/70
Inventor 周子冠吴庆李祥珍欧清海
Owner STATE GRID CORP OF CHINA
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