Huawei Technologies Co., Limited

Huawei Device Co., Ltd.

Jianhui Jiang

Ruimin Wang

Muyun Qin

Zhiqiang Zhang

Rongan Peng

Shaomin Qi

The present disclosure relates to a power management circuit including a control circuit, a first switch module, a second switch module, and a voltage conversion circuit. A first input end of the control circuit receives a main battery activeness detection signal, a first output end is connected to an enabling end of the second switch module which is connected to the voltage conversion circuit and an energy recovery component, and a second output end is connected to an enabling end of the first switch module which is connected to the voltage conversion circuit, a secondary battery, and a main battery. According to the received activeness detection signal, a channel used by the energy recovery component to charge the secondary battery is connected, or a channel used by the secondary battery or the energy recovery component to charge the main battery is connected.

Power management circuit, intelligent terminal, and charging method

A monitoring method and a device for an intelligent monitoring system includes establishing a Bluetooth low energy (BLE) link between a front-end monitoring device and a back-end monitoring device; receiving, by the front-end monitoring device by using the BLE link, a first body temperature value sent by the back-end monitoring device; measuring, by the front-end monitoring device, body temperature of a monitoring person to obtain a second body temperature value; and determining, by the front-end monitoring device according to a variation of the first body temperature value relative to the second body temperature value, whether first prompt information needs to be generated.

Monitoring method and related device for intelligent monitoring system

A transmission method, applied to a mobile terminal provided with a headset interface, is disclosed, where the method includes determining a type of a headset connected to the headset interface. If the headset is a multi-channel headset, an audio digital signal is transmitted to the headset using the headset interface. If the headset is not a multi-channel headset, an audio analog signal is transmitted to the headset using the headset interface. Further disclosed are a mobile terminal, a multi-channel headset, and an audio play system.

Transmission method, mobile terminal, multi-channel headset, and audio play system

Embodiments of the present invention relate to a method and an apparatus for obtaining equipment identification information, where the method includes: detecting, by using a first GPIO port, a first discharging duration for a capacitor to discharge through a resistor to be tested; detecting, by using a second GPIO port, a second discharging duration for the capacitor to discharge through a fixed value resistor; and obtaining a resistance of the resistor to be tested according to the first discharging duration, the second discharging duration, and a resistance of the fixed value resistor. The embodiments of the present invention are capable of increasing identification efficiency of the GPIO port.

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Shenzhen, China

Jianhui Jiang