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Compatible digital traffic lights with traffic signal coding output function

A technology for traffic lights and traffic signals, applied in the field of compatible digital traffic lights, to achieve the effect of large returns, low cost and reduction of traffic accidents

Inactive Publication Date: 2016-08-17
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This single traditional way of identifying through human eyes can no longer meet the requirements of development, and people need a method and device for assisting identification with electronic technology

Method used

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  • Compatible digital traffic lights with traffic signal coding output function
  • Compatible digital traffic lights with traffic signal coding output function
  • Compatible digital traffic lights with traffic signal coding output function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of compatible digital traffic signal lamp with traffic signal coding output function, its composition comprises: Four road signal lamps 2, the signal lamps described in the four roads are arranged according to the four directions of the cross road, the structures of the signal lamps described in the four roads are the same, the The signal lamp comprises three roads of red, green and yellow light group units, and the three roads of red, green and yellow light group units have the same structure, and each road of said red, green and yellow light group units is connected with microprocessor 1, and said microprocessor Respectively connected with coded signal modulation circuit 15, countdown display circuit 16, yellow LED light drive circuit 14, green LED signal coded mixed drive circuit 11, red LED signal coded mixed drive circuit 8, said coded signal modulated circuit is respectively connected with said The green LED signal coded hybrid drive circuit is connected to ...

Embodiment 2

[0022] According to the compatible digital traffic signal lamp with traffic signal coding output function described in Embodiment 1, the OUT-1 and OUT-2 terminals of the microprocessor are respectively connected to the IN-1 terminal of the red LED signal coding hybrid drive circuit, and the green The IN-1 terminal and OUT-7 terminal of the LED signal coding hybrid driving circuit are directly connected to the yellow LED signal lamp driving circuit, and the OUT-10 terminal is connected to the IN terminal of the coded signal modulation circuit, and the OUT terminal of the coded signal modulation circuit is connected in parallel to the red 1. IN-2 of the green LED signal coding hybrid drive circuit, the output ends of the red and green LED signal coding hybrid drive circuits are respectively connected to the red LED light group and the green LED light group through the red electronic switch and the green electronic switch, and the yellow LED light The driving circuit is connected ...

Embodiment 3

[0024] According to the compatible digital traffic signal lamp with traffic signal coding output function described in embodiment 1 or 2, the microprocessor OUT-1, OUT-2 and OUT-7 respectively output conventional red, green and yellow light control timing , OUT-10 synchronous output corresponding to the 8-bit binary PWM or PPM timing fundamental wave, the timing fundamental wave is mixed at 57KHz or other higher frequency through the coded signal modulation circuit, and output in parallel to the red and IN-2 of the green LED signal coding hybrid driving circuit, through the modulation and driving of the red and green LED signal coding hybrid driving circuit, the red and green electronic switches are connected to the output terminal OUT to control the red LED light group and the green LED light group, Output coded red and green signals at 57KHz or other higher frequency quickly, the yellow LED lamp group is the conventional driving mode, the countdown display circuit displays th...

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PUM

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Abstract

Disclosed is a compatible digital traffic signal lamp with a traffic signal encoding output function. Red, green and yellow lamp units are connected with a microprocessor 1 which is connected with a coded signal modulation circuit 15, a counting-down display circuit 16, yellow LED lamp drive circuits 14, green LED signal encoding hybrid drive circuits 11 and red LED signal encoding hybrid drive circuits 8 respectively. The coded signal modulation circuit is connected with the green LED signal encoding hybrid drive circuits and the red LED signal encoding hybrid drive circuits respectively. The green LED signal encoding hybrid drive circuits are connected with green LED electronic switches which are connected with green LED light sets 9. The red LED signal encoding hybrid drive circuits are connected with red LED electronic switches 7 which are connected with red LED light sets 6. The compatible digital traffic signal lamp is used for compatible digital traffic signal lamps with code outputs.

Description

technical field [0001] The invention relates to a compatible digital traffic signal lamp with the traffic signal coding output function. Background technique [0002] Intelligent transportation system (ITS) is the development direction of the future transportation system. Currently, the human-machine double recognition method and equipment for traffic signals have not yet appeared at home and abroad. The traffic signal recognition of autonomous vehicles still uses the signal system designed for humans. The current traffic signal system can be divided into dynamic traffic signals (red, green, and light signals that change in real time), and static traffic signs such as: slow, restricted, forbidden, slow in front of construction, forbidden in front of construction, height limit of 5 meters There are about 150 kinds of signs, such as a maximum load capacity of 40 tons, and signal lights on cars such as: left turn, right turn prompts, deceleration, lane change, etc., while traff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/095G08G1/096G08G1/07
Inventor 张伟陈琳张金傲
Owner HEILONGJIANG UNIV