Real-time traffic light control system and method based on wireless sensor network
A wireless sensor network and traffic light control technology, applied in network topology, wireless communication, traffic signal control, etc., can solve the problems of lack of dynamic real-time performance, excessive installation of wiring harnesses, etc., and achieve the effect of convenient maintenance and reduced congestion
Inactive Publication Date: 2013-05-22
HANGZHOU DIANZI UNIV
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[0003] The purpose of the present invention is to provide a traffic light control system and method with stronger real-time performance and higher reliability in view of the shortcomings of existing traffic light traffic signal control, such as lack of dynamic real-time performance and excessive traffic flow detection installation wiring harness.
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[0041] The present invention will be further described below in conjunction with accompanying drawing.
[0042] The system of the invention includes: a control master station and a plurality of wireless sensor nodes. The control master station is the control center, which is a PC, which stores and displays road conditions and traffic flow information. The host computer software running on the PC analyzes the received data and transmits command control information through the corresponding wireless sensor nodes. Wireless sensor nodes are divided into three categories. The first category is information collection nodes, which are used to collect traffic flow information; the second category is convergence nodes, which are divided into ordinary convergence nodes and central convergence nodes, which collect and transmit traffic flow information in corresponding areas. to the control master station; the third category is control nodes, which are divided into ordinary control nodes ...
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The invention relates to a real-time traffic light control system and method based on a wireless sensor network. The system comprises a control master station and a plurality of wireless sensor nodes. The control master station is a control center, and the wireless sensor nodes are divided into three classes. A universal serial bus (USB) communication mode is adopted between the control master station and the wireless sensor nodes. The control master station is connected with two wireless sensor nodes through USB ports, wherein one of the two wireless sensor nodes is a central gathering nodeand is used for transmitting the gathered wireless data to a personal computer (PC) control master station, and the other one of the two wireless sensor nodes is a central control mode and is used for transmitting the control information of a PC end to the control node. According to the system and the method, the duration of the traffic light can be dynamically adjusted according to the traffic flow, and the jam condition of a crossroad is reduced.
Description
technical field [0001] The invention belongs to the technical field of computer applications, and relates to a real-time traffic light control system and method based on a wireless sensor network. Background technique [0002] Red and green traffic lights are arranged at crossroads. There are four red and green traffic lights at a crossing, and one traffic light has three colors: red, green, and yellow. In modern traffic lights, it also includes a time display, indicating the time that the traffic lights are maintained, and reminding pedestrians or drivers of the remaining time to wait or pass. The traffic lights of traffic lights are generally controlled by the traffic light control machine installed on the side of the intersection, and the traffic lights are switched regularly to indicate whether the driver can pass. Contents of the invention [0003] The purpose of the present invention is to provide a traffic light control system and method with stronger real-time per...
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IPC IPC(8): G08G1/08H04W84/18
Inventor 曾虹吴佳杰张建辉申兴发赵备刘鹏戴国骏
Owner HANGZHOU DIANZI UNIV