The invention discloses a tire pressure detection circuit, a sensor, a tire pressure monitoring system and an automobile, and relates to the technical field of sensors. The tire pressure detection circuit comprises a battery, a switching circuit and a data acquisition and transmission circuit which are connected in sequence; the switching circuit is used for connecting a loop between the battery and the data acquisition and transmission circuit when receiving the wake-up signal; a data acquisition and transmission circuit which is used for realizing tire pressure detection; and a switching circuit which is also used for disconnecting a loop between the battery and the data acquisition and transmission circuit when receiving the dormancy signal. According to the tire pressure detection circuit, a sensor, a tire pressure monitoring system, the switching circuit is arranged between the data acquisition and transmission circuit of the tire pressure sensor and the battery so as to control the power supply of the battery. When tire pressure detection is needed, the switching circuit is closed to enable the data acquisition and transmission circuit to be powered on, and when tire pressure detection is not needed, the switching circuit is disconnected to enable the data acquisition and transmission circuit to be powered off and closed. Therefore, the battery power is saved, and the standby time of the tire pressure sensor is prolonged.
本发明公开了一种胎压检测电路、传感器、胎压监测系统及汽车,涉及传感器技术领域。胎压检测电路包括依次连接的电池、开关电路和数据采集发射电路;开关电路,用于在接收到唤醒信号时,连通电池与数据采集发射电路之间的回路;数据采集发射电路,用于实现胎压检测;开关电路,还用于在接收到休眠信号时,断开电池与数据采集发射电路之间的回路。本发明在胎压传感器的数据采集发射电路与电池之间设置开关电路,以实现对电池供电的控制。在需要进行胎压检测时,开关电路自身闭合,使数据采集发射电路上电开启,在不需要胎压检测时,开关电路自身断开,使数据采集发射电路掉电关闭。从而节约电池电量,提高胎压传感器的待机时间。
Tire pressure detection circuit, sensor, tire pressure monitoring system and automobile
胎压检测电路、传感器、胎压监测系统及汽车
2021-04-16
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
European Patent Office | 2023
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