High tire pressure and low tire pressure will cause harm to driving safety. When the tire pressure is too high, the ground contact area between the tire and the road becomes smaller, making the tire grip ability weaker (especially on wet roads, it will affect braking Distance), it will also lead to accelerated wear of the middle part of the tire, resulting in uneven wear of the tire. In addition, tire pressure is too high will make the tire too hard, its shock absorption effect will deteriorate, and ride comfort will deteriorate.

        For low tire pressure, according to relevant surveys, 70% of highway accidents are caused by flat tires; 95% of flat tires are caused by insufficient pressure.

        The primary culprit for a flat tire is low tire pressure. When the tire pressure is too low, on the one hand, the friction coefficient between the tire and the ground will increase, resulting in overheating; on the other hand, the steel wire in the side rubber cord will be deformed too much when the tire rolls down, and the tire will roll. When it reaches the top, the steel wire needs to be restored to its original position under the action of elasticity and tension. This repeated deformation is just like the rapid folding of your piece of iron wire in the hand will produce high heat. When the heat at a certain point exceeds the heat resistance of the rubber Degree, the rubber will soften and perforate under the pressure, the high pressure in the tire will squeeze out from this point at a high speed, so that the hole will expand rapidly, and the tire will burst.

        According to the test, through the use of tire pressure monitoring system, tire life can be extended by 40%, and at the same time, fuel consumption can be reduced by 5%. At present, the automobile intelligent tire pressure monitoring system has become one of the three major safety systems of automobiles, and is also the standard configuration of high-end automobiles. However, for large construction vehicles, HAECO, trucks, and coaches, tire pressure monitoring devices are rarely used.

        The GPRS wireless tire pressure monitoring system, on the one hand, monitors the tire status in real time and provides abnormal alarm information; on the other hand, KB3030-N GPRS DTU regularly reports tire status related data to the server, which is more convenient for users to manage tire status.

          The system topology is as follows: