The system comprises a radio frequency transceiver, an automobile power supply and a radio frequency base station, the automobile power supply is connected with a reverse battery protection module, the reverse battery protection module is connected with a power supply conversion module, the power supply conversion module is connected with the radio frequency transceiver, and the radio frequency transceiver is connected with the radio frequency base station. The radio frequency transceiver is connected with a communication interface, the communication interface is connected with a discharge protection module, and the discharge protection module is connected with a radio frequency base station; the radio frequency transceiver comprises a Bluetooth low-power-consumption transceiver chip and an ultra-wideband transceiver chip, and the radio frequency transceiver is connected with a Bluetooth and ultra-wideband stable switching transmission system and an OTP-based true physical random number algorithm module. According to the invention, the positioning precision can be improved to 20cm, and the current 2mV system-level power consumption can be maintained.
本发明公开了一种基于蓝牙和超宽带的车载无钥匙进入及启动系统,包括射频收发器、汽车电源、射频基站,所述汽车电源连接有反向电池保护模块,所述反向电池保护模块连接有电源转换模块,所述电源转换模块与射频收发器连接,所述射频收发器连接有通信接口,所述通信接口连接有放电保护模块,所述放电保护模块与射频基站连接;所述射频收发器包括蓝牙低功耗收发器芯片和超宽带收发器芯片,所述射频收发器连接有蓝牙与超宽带稳定切换传输系统和基于OTP的真物理随机数算法模块。本发明可实现将定位精度提高到20厘米,并保持当前2mV系统级功耗。
Vehicle-mounted keyless entry and start system based on Bluetooth and ultra wide band
一种基于蓝牙和超宽带的车载无钥匙进入及启动系统
2022-10-21
Patent
Electronic Resource
Chinese
Keyless entry control system, keyless entry method and keyless entry device for vehicle
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