Vehicle speed control system for expressway main line

A technology of expressway and vehicle speed control, applied in the direction of controlling traffic signals, etc., can solve problems such as only considering speed limit control, and achieve the effect of ensuring driving safety

Active Publication Date: 2014-08-13
TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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  • Abstract
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Problems solved by technology

The Chinese patent application number 201210427353.0 provides a variable speed limit control system and method

Method used

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  • Vehicle speed control system for expressway main line
  • Vehicle speed control system for expressway main line
  • Vehicle speed control system for expressway main line

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[0055] Such as figure 1 Shown: Select a main line section of the expressway, with 4 lanes in one direction, and set the speed control system for the main line of the expressway. On each lane of a certain upstream section, LED variable speed limit display signs are set up for the direction of incoming vehicles, and a traffic guidance control system is set up on the roadside. The two are connected by wired communication cables, and the interface is RS422. A multi-channel traffic environment comprehensive detector is installed on the roadside of a section at a distance of 1000 meters downstream of this section, including rain gauge, fog and snow transmittance meter, anemometer, traffic flow detector and integrated communication module. The traffic flow detector adopts a video detector, and a camera is installed on each lane facing the direction of the vehicle, which is responsible for collecting driving images in real time, and transmits them to the traffic flow detector through...

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Abstract

The invention provides a vehicle speed control system for an expressway main line. The system comprises a multichannel traffic environment comprehensive detector, divided lane LED variable speed-limit signs and a traffic guidance control system, wherein the multichannel traffic environment comprehensive detector, the divided lane LED variable speed-limit signs and the traffic guidance control system are arranged on the expressway main line road segment, the multichannel traffic environment comprehensive detector comprises an integrated communication module, a rain gauge, a fog and snow light-transmitting gauge, an anemoscope and a traffic flow detector, and the rain gauge, the fog and snow light-transmitting gauge, the anemoscope and the traffic flow detector are connected with the integrated communication module. The integrated communication module outputs data to the traffic guidance control system through a unified communication interface, and the traffic guidance control system is combined with speed limiting restraining conditions of divided lanes, optimally provides dynamic speed limiting values or lane-closing running instructions of the divided lanes, and outputs the values and instructions to the divided lane LED variable speed-limit signs. The vehicle speed control system has the advantages of optimally providing the dynamic speed limiting values or no-entry instructions of the divided lanes on basis of comprehensively considering the rain, snow, fog, wind and traffic congestion conditions, and ensuring the running safety on the expressway main line under the complex traffic condition.

Description

technical field [0001] The invention relates to a vehicle speed control system for the main line of an expressway, which is suitable for optimal control of the speed of the main line of the expressway by lanes. Background technique [0002] Studies have shown that under complex traffic conditions (rain, snow, fog, wind, congested traffic flow), excessive speed will lead to a significant increase in the probability of traffic accidents, especially on the main highway. Adopting the real-time speed limit control technology of the main line divided into lanes, it can dynamically guide the speed of the vehicle to keep within a reasonable range, and reduce the speed difference between the front and rear following vehicles, so as to ensure driving safety under complex traffic environment conditions. [0003] At present, the expressway in our country mainly adopts the fixed speed limit method, although some expressways adopt the variable speed limit control method, but there is no d...

Claims

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Application Information

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IPC IPC(8): G08G1/07G08G1/08
Inventor 袁建华邱红桐李标陆振益封春房顾家悦
Owner TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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