What if the BMW parking alarm device fails?

When the BMW parking alarm device fails, it is necessary to check the automotive radar.

Reversing radar and reversing image are important auxiliary configurations for reversing. Is there any difference between the two? Let's see:

First, the reversing radar:

The reversing radar measures the distance between the rear of the car and the obstacle by radar, and then reminds the driver by warning.

For some small objects, the accuracy of this method is limited and there will be a big error.

Second, the reversing image:

Reversing image is also called reversing vision system. A high-definition camera will be installed at the rear of the car, and the signal will be transmitted to the LCD screen through the transmission line, so that we can see the obstacles behind, and the safety factor is higher.

Compared with the two, each has its own advantages and disadvantages:

1. It is easier to install reversing images. Just connect the positive pole of the power cable to the positive pole of the backup lamp, and the negative pole of the power cable to the negative pole of the backup lamp or the ground.

2. Looking at the reversing image needs to look at the information in the display screen, which can't take into account the environment around the car. The reversing radar can ensure the safety around.

Now many cars have both, which can better ensure the safety of cars and reduce accidents.