嫦娥四号探测器休眠唤醒控制设计与验证

Design and Verification of Sleep and Wake-up Control for Chang’e-4 Probe

针对月面环境等因素的影响,容量较小的嫦娥四号探测器蓄电池组无法满足月夜生存的需求.文章结合探测器开展月球探测的工作模式,分析其实施休眠唤醒在能源和温度两方面的约束条件,它们限制了探测器在轨休眠和唤醒的时刻.根据这些条件设计包括休眠控制系统和唤醒控制系统的休眠唤醒电路,解决了探测器月夜生存的需求.电路测试波形显示,该电路可成功实现探测器的休眠和唤醒.在轨验证结果表明,探测器多次实现休眠唤醒,在轨工作正常.

In view of the influence of the lunar environment and other factors,the battery with smaller capacity can not satisfy the need of the probe to survive on moonlight.Combined with the working mode of lunar exploration by the probe,the energy and temperature constraints of sleep and wake-up are analyzed.The conditions limit the time when the probe sleeps and wakes up on orbit.According to these conditions,the sleep and wake-up circuit including the sleep control system and the wake-up control system is designed,which solves the need for the probe to survive at night.The waveform of the circuit shows that the sleep and wake-up can be realized successfully.The circuit on-orbit verification results show that the probe has realized sleep and wake-up many times and the circuit works normally on-orbit.