Blindman traffic guidance system

Abstract

The invention relates to a traffic guidance system for assisting blind people to pass through intersections. The guidance effect of the current sound prompt system is not good. The invention includes a positioning device, a guide wire, an electronic blind stick and a traffic light controller. The positioning device is embedded in the ground next to the exit position of the corresponding intersection of the blind road, and the guide line is set on the road surface between the two positioning devices corresponding to the positions on both sides of the road. The electronic blind stick and the positioning device establish optical communication with each other's infrared light emitting circuit and infrared light detecting circuit through their respective infrared light detecting circuits and infrared light emitting circuits. The wireless communication circuit of the traffic light controller is signal-connected with the wireless communication circuit of the electronic blind stick. The technology of the invention is simple to implement, can accurately obtain the position and forward direction of the blind person, facilitates the traffic light controller to provide relevant information, and guarantees the safety of the blind person to the maximum extent.

Description

technical field [0001] The invention relates to the fields of information transmission and photoelectric communication, in particular to a traffic guidance system for assisting blind people to pass through intersections. Background technique [0002] Existing crossings maintain traffic order and ensure personal safety in the form of traffic lights. But for the blind, they cannot see the traffic light signals, and it is difficult to pass the intersection safely without outside help. In order to help the blind pass through the intersection, the current main plan is to install specific sounding devices on the traffic lights on both sides of the zebra crossing at the intersection to prompt the traffic light information with different sounds. When the blind person walks to the intersection and prepares to cross the road, he judges the status of the traffic light by distinguishing the prompt sound from the sounding device, and decides whether it is possible to pass. [0003] How...

AI Technical Summary

Problems solved by technology

[0003] But this technology has the following disadvantages: the first, the sound volume is difficult to set

The prompt sound is too small, it is easy to be covered by the environmental noise or cannot be heard due to the increase of the distance. At present, the number of motor vehicles in the city is increasing sharply, and the intersection is getting wider and wider. When the blind person crosses the intersection and leaves the sounding device for a certain distance Difficult to hear or even completely inaudible prompt sound; too loud prompt sound will have adverse effects on others and the surrounding environment. Since the prompt sound needs to work continuously for 24 hours, it is easy to affect the rest of the surrounding residents, and it is strongly opposed by the residents

Second, the zebra crossing interrupts the blind roads on both sides of the intersection. It is difficult for the blind to pass the blind road on one side of the intersection through the zebra crossing and walk onto the blind road on the other side of the intersection.

Third, since there is no guiding mechanism on the zebra crossing, once blind people deviate from the zebra crossing for some reason, it will bring safety hazards

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