| 摘要 |
The proposed signal device for a car contains a sound signal switch, a sound signal source, a power control unit for a sound signal, and a control unit. The power supply of the said units is accomplished from the accumulator battery of the car via fuses. The output of the control unit is connected to the input of the power control unit for a sound signal. The inputs of the control unit are connected to the output of the speedometer of the car, the output of the external noise detector, and the outputs of the system that provide safety of the car in movement, such as the antilock brake system and the electronic stability system of the car.
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