Signal control system capable of realizing bus priority without bus lane

A priority signal and bus priority technology, applied in the direction of traffic signal control, can solve the problems of affecting the passage of other social vehicles and prolonging the waiting time of social vehicles, so as to reduce the impact and delay of intersections

Inactive Publication Date: 2011-05-25
隋亚刚 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of the public transportation priority control system in the prior art, the implementation of the public transportation priority strategy will greatly affect the passage of other social vehicles. waiting time problem

Method used

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  • Signal control system capable of realizing bus priority without bus lane
  • Signal control system capable of realizing bus priority without bus lane
  • Signal control system capable of realizing bus priority without bus lane

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0055] The signal control system described in this embodiment is as figure 1 shown, including:

[0056] The priority signal transmitting unit installed on the bus can transmit the priority application signal. The priority signal transmitting unit described in this embodiment is an active electronic tag, and the battery can be replaced on the 85mm×54mm×7mm card, and it is also waterproof. Function, installed with a photosensitive switch, after installation and setting on the monitored vehicle, once it is removed, it can alarm and lock the electronic tag, which can effectively prevent the tag from being replaced. And two large-capacity batteries are installed to ensure that the tag can work for a long time; the working frequency is 2.4GHz-2.5GHz, the working mode is active or passive, the transmission power is less than 1mW, the sensing element is a photosensitive switch, and the reading mode is divided into For read-only and read-write, the reading distance is divided into fou...

Embodiment 2

[0084] The difference between the signal control system described in this embodiment and Embodiment 1 is that there are two proportional thresholds set in this embodiment, namely the first proportional threshold and the second proportional threshold.

[0085] In this embodiment, the priority signal detection module is arranged at the intersection, and the distance measurement module measures the distance y from each priority signal transmitting unit to the priority signal detection module n (n=1, 2...) That is, the distance between the priority signal transmitting unit and the intersection, and the distance value is sent to the local signal control module.

[0086] The working process of the signal control system described in this embodiment is:

[0087] (1) The priority signal detection module of the priority signal processing unit receives the priority application signal of the priority signal transmitting unit; the local signal control module counts the number of priority a...

Embodiment 3

[0102] The structure of the signal control system described in this embodiment is as follows figure 2 As shown, the difference compared with Embodiments 1 and 2 is that the priority signal processing unit in this embodiment also includes a priority application access module arranged between the priority signal detection module and the local signal control module;

[0103] The hardware composition of the priority application access module is as follows: the microprocessor adopts onboard Intel Celeron M Processor or Intel Pentium M Processor 1G, north bridge: Intel 82855GM / GME (GMCH), south bridge: Intel FW82801DB-M (ICH4-M); the display controller adopts the built-in graphics controller of the motherboard, which can perform parallel data processing and accurate pixel insertion of 3D Super-pipeline architecture, full 3D hardware acceleration, VGA display resolution up to 1600×1200@85Hz and 2048×1536@75Hz; system memory is equipped with onboard 256MB DDR200 / 266 / 333MH...

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PUM

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Abstract

The invention relates to a signal control system capable of realizing bus priority without a bus lane. When a priority signal processing unit in the signal control system determines that a bus appears in the first row of vehicles at an intersection, the priority signal processing unit further calls a proportional value of the number of buses to the total number of vehicles and a proportional threshold value stored in the priority signal processing unit to compare, and issues control instructions according to comparison result. In the control system disclosed by the invention, by setting the proportional threshold value, when the proportional value of the number of the buses to the total number of the vehicles is in a range of each interval, the longest delay time of a green light is limited, thus the problem that when more buses sequentially stop at the intersection, the transportation of other normal social vehicles is seriously affected by the bus priority strategy can be effectively avoided, the intersection delay of the buses is effectively reduced, and simultaneously the impact on the normal social vehicles is minimized.

Description

technical field [0001] The invention relates to the field of intelligent traffic control, in particular to a signal control system for realizing bus priority at urban road intersections without bus lanes. Background technique [0002] With the development of social economy, both developed countries and developing countries are suffering from the increasing traffic problems without exception. The traditional way to solve traffic problems is to build new roads, but the space for new roads in Chinese cities is getting smaller and smaller, while the number of motor vehicles is growing rapidly. Take Beijing as an example, a megacity with a population of more than 17 million , as of March 2010, the number of motor vehicles in Beijing has exceeded 4.1 million, and it is still increasing at an average rate of 1,000 vehicles per day. The main arterial roads in the urban area are basically saturated during peak hours, and road traffic congestion is serious. In addition to considering...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/08
Inventor 隋亚刚李志恒苏岳龙尹胜超李力
Owner 隋亚刚
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