Design of the logic detection device for automobile taillights
The taillight system of the car is simple to manufacture, energy-saving and reliable, reducing the hidden dangers of traffic accidents and improving the safety of driving is an unremitting pursuit. Using 7 integrated circuit chips, 6 LEDs, 4 resistors, 2 capacitors, through the basic method of digital logic design, designed a vehicle taillight system monitoring device, and the overall design and hardware of the car taillight system The circuit, structural characteristics, working principle and debugging method are analyzed in detail. The system realizes four kinds of commonly used automobile taillights such as normal operation, left turn, right turn and temporary brake, and is simple in production, reliable and energy-saving, and has relatively high practical value.
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1 car taillight logic detection device circuit design and working principle
The circuit design of the vehicle taillight logic detection device adopts three LED indicators installed on the left and right sides of the tail of the vehicle.
The design requirements for the circuit design of the vehicle taillight logic detection device are:
1) The LED indicator is completely off during normal operation;
2) When turning right, the three LED indicators on the right side light up in the cycle order;
3) When the left turn is turned, the three LED indicators on the left side are illuminated in the cycle order;
4) All LEDs flash at the same time during temporary braking.
The circuit schematic design of the car taillight logic detection device is shown in Figure 1:
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