Summary of the invention
The object of this invention is to provide a kind of achromate and use traffic light prompting device, for the drove problem of traffic intersection of above-mentioned achromate, and the practicable solution of one proposing.
Principle of work of the present invention:
When automobile is during through crossing, minisize pick-up head carries out real-time continuous shooting or takes pictures front scenery, and the picture signal obtaining is delivered to image recognition device simultaneously and identify, image recognition device is identified the picture signal being sent by minisize pick-up head, first image recognition device (turns left curved to the traffic lights position gathering, turn right curved, keep straight on) carry out subregion, subregion is identified picture signal, if the direction of exercising is the picture signal of red light, image recognition device will send the switching signal of high level, speech chip is delivered in amplification by driving circuit, and drive speech chip to play the voice that record by loudspeaker, inform now red light of person for driving a car, stop moving ahead, if the direction of exercising is the picture signal of green light, image recognition device will send low level switching signal, delivers to speech chip by the amplification of driving circuit, and drives speech chip to play the voice that record by loudspeaker, inform now green light of person for driving a car, can move ahead.
Technical scheme of the present invention is as follows:
A kind of achromate uses traffic light prompting device, microcam is installed in automobile, image recognition device, driving circuit, speech chip, loudspeaker, it is characterized in that: minisize pick-up head is aimed at vehicle front, the digital signal output end of minisize pick-up head is connected with the signal input part of image recognition device, the signal output part of image recognition device is connected with the signal input part of driving circuit, the driving signal output part of driving circuit is connected with the control signal input pin of speech chip, loudspeaker just, the voice output that negative pole is connected on speech chip just, negative terminal pin.
Described achromate uses traffic light prompting device, it is characterized in that described minisize pick-up head is arranged on automobile top or glass front.
Described achromate uses traffic light prompting device, it is characterized in that described image recognition device can identification colors, and can this color indicated direction (turn left curved, turn right curved, keep straight on).
Described achromate uses traffic light prompting device, it is characterized in that the APR9600 voice recording and playback ic of described speech chip Taiwan company.
Feature of the present invention:
The present invention is owing to selecting integrated device, and volume is little, and power consumption is little, and discrimination is high.Can integratedly be produced on the instrument desk in automobile driver seat or front passenger's seat front, not affect the appearance, there is very high marketable value, effectively solve achromate and cross the problem of traffic intersection.
Embodiment
Referring to accompanying drawing 1.A kind of achromate uses traffic light prompting device, be arranged on the instrument desk in automobile copilot seat front, comprise by minisize pick-up head 1, image recognition device 2, driving circuit 3, speech chip 4, loudspeaker 5 forms, the digital signal output end of minisize pick-up head 1 is connected with the signal input part of image recognition device 2, the signal output part of image recognition device 2 is connected with the signal input part of driving circuit 3, the signal output part of driving circuit 3 is connected with the control signal input pin of speech chip 4, , loudspeaker 5 just, the voice output that negative pole is connected on speech chip 4 just, negative terminal pin.
Speech chip 4 can be selected the APR9600 voice recording and playback ic of Taiwan company, be continue American I SD company adopt later analog storage technology etc. have that a tonequality is good, noise is low is not afraid of power-off, the novel voice circuit of recording playback repeatedly, monolithic integrated circuit can recording playback 32-60 second, when Serial Control, can divide more than 256 sections, when parallel control, can divide 8 sections.It has compared with ISD similar chip: low price, there is multiple manual control mode, sectional management is convenient, simple, the sample rate of circuit and adjustable, the each singly-bound of record playback time all have and start to stop the features such as several functions that circulate when multistage control, retained the Some features of ISD2500 chip simultaneously, all DIP28 dual-in-line plastic package, also basic identical on pin is arranged.
It is 16 ohm that loudspeaker 5 requires, experimental test with 8-16 ohm all can, output power 12.2mW (16 Europe) under general volume.