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Event-driven multi-target real-time tracking system for wireless sensor networks

A wireless sensor, event-driven technology, applied in wireless communication, electrical components, advanced technology, etc., can solve problems such as limited battery energy, limited computing resources and communication resources

Inactive Publication Date: 2017-10-27
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wireless sensor networks have the advantages of a large number of nodes, small size, and low power consumption, but at the same time, they are accompanied by disadvantages such as limited battery energy, limited computing resources and communication resources.

Method used

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  • Event-driven multi-target real-time tracking system for wireless sensor networks
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  • Event-driven multi-target real-time tracking system for wireless sensor networks

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Experimental program
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Effect test

Embodiment

[0093] The normal operation of the event-driven wireless sensor network multi-target real-time tracking system includes the following steps:

[0094] (1) Arrange the wireless sensor network, including the software and hardware required by the system, and place the mobile robot within the effective range of the detection network;

[0095] (2) Turn on all power supplies, initialize the entire wireless sensor network, and then all nodes enter a dormant standby state;

[0096](3) Start the real-time monitoring and control software of the data service center, start the whole system by clicking the start button on the operation interface, the data service center will issue clock synchronization instructions, and broadcast to the node transceiver sub-station and mobile receiving sub-station through the base station sending end, One-way broadcast synchronization is used to achieve clock synchronization between the base station and all sensor nodes to avoid timing confusion;

[0097] ...

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Abstract

The invention discloses a wireless sensor network multiple target real-time tracking system based on event drive. The system is designed by using a hierarchy logical structure, wherein a perception layer, a network communication layer and an application layer are respectively comprised. In order to avoid network conflict in a multiple target tracking process, a self-adaption clustering node scheduling strategy based on a task is used. A Calman filter positioning tracking algorithm based on event drive is disclosed. A least square method with fast convergence speed is used to modify a current Calman filter state value, and positioning tracking is carried out on a number of mobile robots in a sensor network. The system uses a double token working mode and is combined with a dynamic time slot allocation method based on a task to effectively complete a network task in real time. The system uses the self-adaption clustering node scheduling method, can automatically carry out clustering on measurement data according to a moving target, breaks a previous working mode which is limited by single target tracking, and realizes a real-time multiple target tracking function and remote feedback control based on a wireless network.

Description

technical field [0001] The present invention relates to a wireless sensor network (Wireless Sensor Network), target positioning tracking and networked feedback control technology, in particular to an event-driven wireless sensor network multi-target real-time tracking system, which is suitable for wireless sensor networks and networked robots , the networked robot is placed in the wireless sensor network as a moving target and a control object. The wireless sensor network adopts event-driven extended Kalman filter positioning algorithm and adaptive clustering scheduling strategy, comprehensively uses one-way broadcast clock synchronization, time-sharing transmission protocol, distance measurement and communication channel separation, grid switching edge monitoring and protection, etc. A variety of mechanisms are used to implement event-driven real-time tracking and positioning of mobile robots in the network to form a feedback control system. Background technique [0002] W...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W64/00H04W72/12
CPCY02D30/70
Inventor 苏为洲叶景志罗振华罗汶锋余辉荣
Owner SOUTH CHINA UNIV OF TECH
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