The invention discloses a power-down wake-up device and method for a vehicle-mounted positioning system. The device comprises a power supply module, a power switch control module, a peripheral module and an MCU, wherein the power supply module supplies power to the MCU through the power switch control module and supplies power to the peripheral module; the power switch control module controls a power supply switch of the MCU according to output signals of the peripheral module and the MCU; and the peripheral module determines an output signal to the power switch control module according to the output signals of the external wake-up interface and the MCU. Through the positioning device which can be awakened externally and can be self-locked, the current consumption is lower in a low-power-consumption state of the system.
本申请公开了一种车载定位系统掉电唤醒装置及方法。该装置包括电源模块、电源开关控制模块、外设模块、MCU,其中:电源模块通过电源开关控制模块供电给MCU,以及给外设模块进行供电;电源开关控制模块根据外设模块以及MCU的输出信号进行对MCU的供电开关控制;外设模块根据外部唤醒接口以及MCU的输出信号确定向电源开关控制模块的输出信号。本申请可通过外部唤醒且可以自锁的定位装置,使得系统低功耗状态下,消耗电流更低。
Power-down wake-up device and method for vehicle-mounted positioning system
一种车载定位系统掉电唤醒装置及方法
2024-03-26
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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