Intelligent traffic control system and method based on wireless Mesh ad hoc network
A technology of intelligent traffic control and traffic control, which is applied in the field of traffic control and intelligent traffic control, and can solve the problems of low robustness and fault tolerance, low intelligence, low reliability and flexibility, etc.
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[0130] Example one:
[0131] An intelligent traffic control system based on wireless Mesh ad hoc network, such as figure 1 As shown, the intelligent traffic control system includes: 4 traffic control nodes A, 1 ZigBee regional base station B, mobile communication base station C, and traffic control center D; 4 traffic control nodes A are located at each intersection, inside Each device is connected by RS-232 / RS-485 bus. The neighboring nodes use ZigBee technology to realize wireless Mesh ad hoc communication network and exchange traffic data in real time. ZigBee regional base station B and traffic control center D use GPRS through mobile communication base station C / CDMA data transmission equipment for remote connection;
[0132] Such as image 3 As shown, each traffic control node A includes a traffic flow parameter collection device, a traffic signal control device, and a ZigBee communication module I15. The traffic flow parameter collection device includes a traffic flow video...
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[0147] Example two
[0148] A method of using the intelligent traffic control system based on the wireless Mesh ad hoc network described in the first embodiment for intelligent traffic control, which is a method that combines ZigBee short-range wireless communication technology and intelligent network technology to control each node in the system The traffic flow parameter collection and traffic signal control equipment is connected to the Mesh self-organizing network through Zigbee wireless communication, and the control target area is predefined according to the GPS node positioning information and the road network topology (this area can be planned as points and lines according to actual needs. , Planar) and neighboring associated nodes in accordance with the BNNC traffic control protocol-that is, the traffic control node based on the neighboring negotiation mechanism of the traffic control protocol, real-time exchange of traffic flow parameters, signal control parameters and n...
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