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Signal priority control system and method for ensuring bus circulation

A signal priority and control method technology, applied in traffic control systems, road vehicle traffic control systems, instruments, etc., can solve the problems of not being able to know signal lights, not being able to know priority signals, etc.

Inactive Publication Date: 2013-08-28
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that the bus driver in the prior art cannot know whether he has obtained the priority signal when driving to the intersection, and the driver of the non-bus vehicle cannot know whether the signal lamp has provided the priority signal for the bus. The lights are not changed according to the normal changing rules, so that neither bus drivers nor non-bus drivers can take corresponding measures according to the current signal light status, and are in a relatively passive state

Method used

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  • Signal priority control system and method for ensuring bus circulation
  • Signal priority control system and method for ensuring bus circulation
  • Signal priority control system and method for ensuring bus circulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment provides a signal priority control system to ensure the smooth flow of public transport, including: a vehicle-mounted unit, a signal light control unit, a priority signal processing unit, and an information display board;

[0057] The on-board unit is arranged on the bus, including:

[0058] Vehicle position detection module: used to determine the latitude and longitude coordinate information of the bus in real time and send the latitude and longitude coordinate information to the command and control center; in this embodiment,

[0059] The vehicle location detection module includes a GPS positioning module: used to determine the latitude and longitude coordinate information of the vehicle location in real time; a data transmission module: used to send the latitude and longitude coordinate information of the vehicle to the data receiving module.

[0060] On-board video display module: used to remind the bus driver of the status of the intersection signal...

Embodiment 2

[0097] In this embodiment, in order to make the bus obtain a green light signal at a suitable position, the normal traffic will not be affected too much because the monitoring point is too far or too close to the center of the intersection, such as figure 2 As shown, multiple monitoring points are set at the intersection. Since the GPS locks the position information of the vehicle every 1s, the distance between adjacent monitoring points is the maximum distance L that the bus travels per second, so that each monitoring point The location information of is all valid information. According to the driving speed of the vehicle, when the vehicle is driving fast, set the priority signal for the vehicle when the vehicle reaches the monitoring point far from the intersection; when the vehicle is driving slowly, set the vehicle to arrive at the monitoring point closer to the intersection Provide priority signal for vehicles.

Embodiment 3

[0099] In this embodiment, the vehicle-mounted video display module further includes a phonation sub-module, and an audio processing module is set in the corresponding priority signal processing unit to process the signal light status information in the direction of vehicle travel so that the phonation sub-module can play The audio signal is played by the sounding sub-module to prompt the driver whether he can pass the intersection. For example, "passing" can be played, and the driver knows that he can speed up and pass the intersection, and the driver will play "wait for 3 seconds" You have to wait for 3 seconds to pass the intersection, and then you will slow down.

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Abstract

The invention relates to a signal priority control system and a corresponding method for ensuring bus circulation. A bus is judged whether to be close to road junction or not by comparing bus longitude and latitude coordinate information with central longitude and latitude coordinate information of each road junction; the bus is judged whether to arrive at monitoring point or not by comparing thebus longitude and latitude coordinate information with longitude and latitude coordinate information of the monitoring point around the road junction; and when the bus reaches the monitoring point, acommand control center controls road junction signal lamps to provide a green lamp signal for the bus, and meanwhile, a vehicle-mounted video display module on the bus and an information display board disposed in downstream direction of vehicle driving at the road junction can prompt bus drivers and other drivers on whether buses obtain priority signals or not and how the signal lamps will changesubsequently, and the vehicle drivers in two directions instantly make responses according to the information prompted by the information display board, and decide whether to drive on to pass throughthe road junction or slow down to stop and wait.

Description

technical field [0001] The invention relates to the field of intelligent traffic control, in particular to a signal priority control system and method for ensuring the smooth flow of public transportation. Background technique [0002] Urban public transport is an important part of green transportation and low-carbon life. With the rapid development of social economy, urban population is becoming more and more dense, and the problem of urban road congestion is becoming more and more prominent, which has also become an important factor affecting people's living standards. In order to alleviate traffic congestion and meet people's travel needs, the implementation of signal priority control on buses has been widely used at home and abroad. [0003] The existing Chinese patent document CN 101256717B discloses a GPS-based rapid bus positioning and traffic signal control method and device. The vehicle positioning information of the BRT will be obtained through the RF wireless tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/087G08G1/0962
Inventor 王炜顾怀中蔡健臣陆建
Owner SOUTHEAST UNIV