Traffic light system for assisting achromate to travel

Abstract

The invention discloses a traffic light system for assisting an achromate to travel, which comprises intelligent traffic lights arranged on a crosswalk and a wearable device worn on an achromate, wherein the intelligent traffic lights comprise a traffic light controller, a PFM control circuit and traffic lights; and the wearable device comprises a photoelectric sensor, a signal amplifying circuit,a filter circuit, a signal processing circuit, and a micro motor connected in sequence. The wearable device worn on the achromate is linked with the intelligent traffic lights, the color of the current traffic light can be recognized through the carrier frequency of the traffic light, the achromate can be effectively assisted to go across the crosswalk, casualties and major traffic accidents canbe avoided, intelligent construction of urban roads is realized, good economic and social benefits are achieved, the application prospect is great, and the traffic light system for assisting an achromate to travel has the advantages that the operation is simple and convenient, no noise is generated, and the operation is reliable.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of intelligent traffic equipment, and in particular to a traffic light system for assisting color-blind patients to travel. Background technique [0002] It has always been a difficult point in the field of traffic control to allow color-blind patients to recognize the correct traffic light signal. The main methods currently implemented are: 1. Street light image method, that is, the green light is made into a walking state image, and the red light is made into a stop state Pedestrians can know the current state of the street light color by observing the image; 2. Voice broadcast method, that is, the state of the same color as the street light is played, for example, "please go together" when the light is green, and "prohibited" when the light is red; 3. Wireless transmission method, using FM or AM band to play the voice signal with the same color as the street light. From the point of...

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Problems solved by technology

From the point of view of the survey, these methods mainly have the following disadvantages: 1. The street lamp image method is simple to implement, but there is a shortcoming that the street lamp cannot be accurately observed at a long distance, especially for common eye diseases such as myopia and presbyopia, which affect the effect. The impact is particularly obvious; 2. The voice playback method is reliable, but due to the need to loop the voice, it causes noise pollution to nearby residents, especially at night, and the disturbance is particularly serious; 3. FM and AM radio signals have no directionality, which is easy to cause recognition disorder

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