Lane departure early warning method
A technology of deviation warning and road, applied in the direction of signal devices, etc., can solve the problems of not giving, the increase of calculation amount, and the effect of GPS signal validity, so as to reduce the probability of occurrence and ensure the effect of safety.
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[0020] Such as figure 1 As shown, the road departure early warning system adopted in an embodiment of the present invention includes an image acquisition unit, a vehicle CAN bus, a control unit, a display, an audio codec unit, a buzzer, an SD card and a speaker, an image acquisition unit, a vehicle CAN bus and The control unit is two-way connected, the display, audio codec unit, buzzer, and SD card are connected to the control unit, and the audio codec unit is connected to the speaker.
[0021] Vehicle CAN bus uses 82C50 driver chip, image acquisition unit uses COMS or CCD camera, image pixels are not less than 700,000, viewing angle is not less than 90 degrees, color or black and white, video frame refresh rate is not less than 25 frames per second, installed in the rear view of the vehicle At the mirror, the audio codec unit uses TLV320AIC23 chip.
[0022] The control unit can be ARM series, DSP series, Blackfin series embedded processors, etc. The clock frequency of the control ...
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