The invention discloses a microwave read-write antenna dynamic switching method and device based on ETC and radar integration, and the method comprises the steps: obtaining the speed V of a vehicle in a lane according to a radar, wherein the radar is disposed in a microwave read-write antenna; sending the vehicle speed V in the lane obtained according to the radar to a MCU of the microwave read-write antenna; and enabling the MCU to control the switching frequency of the microwave read-write antenna in the identification area of the microwave read-write antenna according to the received vehicle speed V. According to the technical scheme, the radar is arranged in the microwave read-write antenna, the driving speed of the vehicle in the lane is obtained according to the radar, the MCU adjusts the on-off state and duration of the microwave read-write antenna according to different vehicle speeds, and the problem that the power consumption of the vehicle-mounted electronic tag is increased due to long-time awakening of the vehicle-mounted electronic tag in a congestion or red light scene of the vehicle is solved; and the service life of the vehicle-mounted electronic tag can be prolonged.
本发明公开一种基于ETC和雷达集成的微波读写天线动态开关方法和设备,该方法包括:该方法包括:根据雷达获得车道内的车辆速度V,其中,雷达内置在微波读写天线内;将根据雷达获得车道内的车辆速度V发送给微波读写天线的微控制器MCU;所述微控制器MCU根据接收的车辆速度V,在所述微波读写天线识别区域内控制所述微波读写天线的开关频率。本发明所述技术方案,将雷达内置微波读写天线内,根据雷达获取车道内车辆行驶速度,微控制器MCU根据不同车速调整微波读写天线的开关状态与时长,解决车辆在拥堵或红灯场景下,车载电子标签长时间唤醒导致其耗电增加的问题,可增加车载电子标签的使用寿命。
Integrated antenna dynamic switching method and device
一种集成天线动态开关方法和设备
2021-11-26
Patent
Electronic Resource
Chinese
European Patent Office | 2022
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