Intelligent traffic control system and method for wirelessly sensing and driving network circuit

Abstract

The invention discloses an intelligent traffic control system and method of a wireless sensing and driving a network. The system comprises a central control center, M zone gateway devices and N sensing-driving knots which form L clusters with L cluster heads, and each cluster comprises one cluster head and at least one sensing-driving knot. A multi-level structure is formed from the central control center, M zone gateway devices to N sensing-driving knots. For the system of the invention, each sensing-driving knot can senses the traffic state in time and exchanges information with other knots through a wireless communication way provided with self-error replying capability. The intelligent traffic control system adopts a distributed decision calculating frame to automatically regulate the control plans of each communication crossing according to the actual traffic state so as to realize an effective control to traffic.

Description

technical field [0001] The invention relates to an intelligent traffic control system and method of a wireless sensor and actuator network. Background technique [0002] The traditional timing traffic signal control system does not automatically adjust the cycle time of traffic lights (cycletime) according to the actual traffic flow. What often happens is that the driver must wait for a long red light, even if there is very little traffic (or even no traffic) in the other direction. Or in the peak period of traffic, a traffic policeman is required to direct the direction of the vehicle or manually control the traffic signal. [0003] Recently, the new computerized signal control system will install sensors at important intersections to transmit information such as traffic flow back to the central traffic management center (control center), which determines the control plan of each intersection (that is, traffic lights in each direction of traffic flow) time configuration),...

AI Technical Summary

Problems solved by technology

[0008] Centralized control architecture is less capable of system fault tolerance (error tolerance)

for example, a failure of a central traffic management center could cause an entire online traffic signal controller to go down or malfunction

And using the above-mentioned communication method to communicate, each traffic signal controller needs to have a long-distance communication interface, which consumes a lot of power

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