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Intelligent traffic light control method and system based on wireless sensor network

A wireless sensor network and wireless sensor technology, applied in the field of intelligent transportation, can solve problems such as singleness and high price, and achieve the effects of easy installation, low cost, and reduced vehicle waiting time

Inactive Publication Date: 2012-02-22
HARBIN INST OF TECH
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned traffic control systems are generally expensive and need to be tested in a wired way, and can only provide traffic control at a single intersection

Method used

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  • Intelligent traffic light control method and system based on wireless sensor network
  • Intelligent traffic light control method and system based on wireless sensor network
  • Intelligent traffic light control method and system based on wireless sensor network

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Embodiment Construction

[0028] The invention combines the design of domestic and foreign intelligent transportation systems and the research results of magnetoresistive sensors, and designs an intelligent transportation system based on a wireless sensor network composed of a giant magnetoresistance sensor, a radio frequency module and a processor.

[0029] see figure 1 and figure 2 , the hardware system of the control system of the present invention includes: an array signal lamp 3 arranged at the intersection K, and a wireless sensor network is arranged at the intersection K. A group of wireless sensor nodes 1 and a wireless sensor convergence node 2 located in the middle of intersection K. The wireless sensor node 1 transmits vehicle passing and queuing information to the wireless sensor converging node 2 by means of wireless communication, and the wireless sensor converging node 2 controls each signal light 3 at the intersection according to the calculated control data.

[0030] see image 3 ,...

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Abstract

The invention discloses an intelligent traffic light control method and system based on a wireless sensor network. A wireless sensor network system is arranged at a crossroad; the vehicle flow of the cross road and the queuing length of vehicles waiting at the cross road are detected by the wireless sensor; the acquired vehicle information at the cross road is sent to a traffic signal light control node in real time; and the time duration of the red and green lights is calculated by a software algorithm in a self-adaptive manner, and is adjusted automatically to effectively reduce the waiting time of the vehicles, so that the efficiency of the vehicle driving at the crossroad is improved and the automation level of traffic control is improved. The system also can avoid the trouble of pipeline distribution on the broken roads, has the advantages of small volume, low cost and convenience in installation and is suitable for promotion and popularization at the traffic department.

Description

technical field [0001] The invention relates to the field of intelligent traffic, in particular to a sensor-type intelligent traffic control method. Based on the current popular giant magnetoresistive sensor, a specific intelligent traffic light control method and a control system for implementing the method have been developed. Background technique [0002] The intelligent transportation system is a system that effectively integrates advanced information technology, communication technology, sensor technology, control technology and computer technology into the entire transportation management system, and establishes a large-scale, all-round functioning system. , Real-time, accurate and efficient integrated transportation and management system. [0003] At present, my country's intelligent transportation systems mostly use loop coil detectors, microwave detectors, ultrasonic and video detectors to detect vehicles. From the perspective of cost performance, the ring coil de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/08G08G1/081
Inventor 王东哲曹喜滨刘晓为马月超穆涛王峰
Owner HARBIN INST OF TECH
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