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System for adaptive fuzzy control of traffic signal

A fuzzy self-adaptive, traffic signal technology, used in traffic control systems, road vehicle traffic control systems, traffic signal control and other directions, can solve problems such as wasted traffic capacity, blurred traffic signals, etc., to reduce queues and improve traffic efficiency. , reducing the effect of impatience

Inactive Publication Date: 2005-02-23
北京市振隆科技股份有限公司
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Problems solved by technology

[0015] In order to solve the problem of waste of traffic capacity caused by the old traffic intersection control device in the irregular traffic flow, the present invention proposes another traffic signal fuzzy adaptive control system and its method

Method used

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  • System for adaptive fuzzy control of traffic signal
  • System for adaptive fuzzy control of traffic signal
  • System for adaptive fuzzy control of traffic signal

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Embodiment Construction

[0046] Such as figure 1 As shown, the traffic signal fuzzy adaptive control system and method thereof of the present invention divide the signal period into several mutually disjoint signal stages at intersection 1, such as: north-south straight stage, north-south left turn stage, east-west straight stage, east-west Left-turn phase; each signal phase corresponds to several lanes at the intersection; for example, the north-south straight phase corresponds to lanes 3, 6, 9, and 10; traffic flow detectors are set on each lane, such as lanes 3 and 6 , 9, 10 are provided with traffic flow detector 4,5,11,12 respectively; Ground sense coil type traffic flow detector.

[0047] According to the traffic survey in advance, the average time parameter t used by various traffic flows to pass a vehicle at the stop line is given 0 , such as 2.5s. Because the vehicle speeds of different vehicle types and vehicle conditions are different, it can only be fuzzily processed as the average valu...

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Abstract

An adaptive fuzzy control system and method for traffic lamp is characterized by that a traffic signal controller is used to connect the traffic throughput detector with signal indicator. A cycle of a traffic signal is divided into severalr stages. Each stage has several pass rights. The time for pass and the time for inhibition in each stage are calculated according to detected traffic throughput and the time taken by a vehicle and then provided for signal indicator.

Description

technical field [0001] The invention relates to a traffic signal fuzzy self-adaptive control system and method thereof, in particular to an urban traffic signal fuzzy self-adaptive control system and method applied to urban road single-point level intersections. Background technique [0002] At present, the traffic signal control device overwhelming majority of level crossing all is to reach the control of timing with the alternate display of red, yellow and green lights with the time length of the traffic signal of releasing various traffic flows fixedly by signal control device. Since the traffic flow in each cycle in each direction of the intersection is dynamic, the random difference is very large, and there is no causal relationship, the adoption of this timed traffic signal fuzzy adaptive control system and its method will inevitably lead to "there is no right of way in the direction where there are cars". , the unreasonable phenomenon of "no car going in the direction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/00G08G1/07G08G1/08G08G1/09G08G1/096
Inventor 刘业兴
Owner 北京市振隆科技股份有限公司
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