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What are the symptoms of car anti-theft alarm failure?

What are the symptoms of car anti-theft alarm failure?

The car anti-theft alarm is the anti-theft device installed in the car, which is connected with the relevant circuit of the car, and can lock the circuit of the starter oil supply or ignition system, playing a role of deterrent and anti-theft. The main functions include: remote control of opening and closing the central control lock of the car, adding the ability to step on the brake and lock the car after starting, unlocking after turning off the key, opening the door flashing light, blocking, emergency call for help, automatic central control lock, and anti-robbery if necessary (optional)

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Why is the horn a necessary part of a car, and the law forbids it?

Why is the horn a necessary part of a car, and the law forbids it?

According to Article 47 of the Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China, when a motor vehicle overtakes, it should turn on the left turn signal in advance, change the use of high and low lights or honk the horn. On a road with no road centerline or only one motorway in the same direction, when the front vehicle sends a overtaking signal when it meets the rear vehicle, the speed shall be reduced and the right side shall be left to give way if conditions permit. After confirming that there is sufficient safety distance, the rear vehicle should overtake the left side of the front vehicle, and turn on the right turn signal after pulling away the necessary safety distance from the overtaken vehicle, and drive back to the original lane

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Why does the horn sound?

Why does the horn sound?

The general speaker is composed of iron frame, magnet and paper basin. A coil is installed in the middle of the paper basin and glued. The coil works in the gap of the magnet, and there is a magnetic field in the gap of the magnet. When the coil in the middle of the paper basin passes through the audio current, the coil will also generate a magnetic field that changes with the strength of the audio current. This magnetic field interacts with the inherent magnetic field of the magnet, making the coil move accordingly, and driving the paper basin to move and make sound. In short, the speaker is a kind of energy conversion.

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The sound of car horn is a very cool application, with the sound of 16 high-quality car horns

The sound of car horn is a very cool application, with the sound of 16 high-quality car horns

可连接多个有线探测器(比如有线门磁、有线红外探测器等)，组成一套有线报警器，设防状态下，一旦有探测器探测到信号就报警，如果入侵者试图剪断连接到警号的线，也会报警

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