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Red light avoidance system

A technology of red lights and signal lights, applied in traffic control systems of road vehicles, traffic control systems, instruments, etc.

Inactive Publication Date: 2014-07-09
CHENGDU HAICUN IP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of these equipment improvements can far outweigh the savings in gas bills by avoiding red lights

Method used

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Examples

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Embodiment Construction

[0019] Figure 1A-Figure 1C A method for calculating an optimal vehicle speed profile is described. After the car 10 runs according to the optimal speed curve, it can avoid red lights when reaching the next signal light 20 . in, Figure 1A Indicates the relative positions of the vehicle 10 and the signal lamp 20 . The position of the signal light 20 is T, the position of the car 10 is V, the speed of the vehicle is S, and the driving route is R. at the initial time t 0 , the distance D between the car 10 and the signal light 20 is D 0 .

[0020] Figure 1B Indicates the phase order of the signal lights 20 . It contains multiple signal periods C 1 、C 2 .... Each signal cycle (eg C 1 ) contains red phase (that is, the signal light is red, such as R 1 ), green phase (that is, the signal light is green, such as G 1 ) and yellow phase (that is, the signal light is yellow, such as Y 1 ). at time t 1s , the signal light 20 from the red phase R 1 Change to green phase...

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Abstract

The invention provides a red light avoidance system. The red light avoidance system comprises a smart phone where a red light application program is installed and an automobile with a speed control module. The automobile automatically runs according to an optimum vehicle speed so as to avoid a red light. The red light avoidance system can save energy and reduce pollution and does not influence running safety. A universal device (such as the smart phone) rather than a customized device is adopted for the red light avoidance system to achieve the goal of red light avoidance. An existing traffic control system and an existing vehicle-mounted electronic device do not need to undergo too much modification. Therefore, the red light avoidance system is very low in hardware cost.

Description

technical field [0001] The present invention relates to the field of electronic equipment, more specifically, relates to vehicle-mounted electronic equipment. Background technique [0002] Traffic lights (signal lights) control the flow of vehicles at intersections. Because the phase of the signal light is not known in advance, drivers often encounter red lights and are forced to brake. Frequent braking wastes the car's kinetic energy, which increases fuel consumption, and it also has a negative impact on the environment. In order to save energy and improve the environment, it is hoped to develop a system that avoids red lights. [0003] US Patent 6,989,766 (inventor: Mese et al., grant date: January 24, 2006) proposes a system for avoiding red lights. It includes a GPS to track the vehicle's position and a receiver to receive time information for the next traffic light. The system calculates the optimal speed to avoid red lights and displays this to the driver, who chan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/14B60W30/00G08G1/0967
CPCB60W30/14B60W30/00B60W2720/103G08G1/0967
Inventor 张国飙
Owner CHENGDU HAICUN IP TECH
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