Huawei Technologies Co., Limited

Pinhui Chen

Bo Xie

Xiujiang Ma

Kheng Hong Ang

Weicai Zeng

Yuanji He

A fault diagnosis method includes detecting a state of a relay device, sending a fault diagnosis trigger signal to the relay device based on the state to enable the relay device to enter a fault diagnosis mode, where the fault diagnosis trigger signal includes one or more of a variable supply voltage value, a transmit/receive control signal, and a diagnosis control signal, detecting a state of the relay device in the fault diagnosis mode, determining a fault code based on the state, and determining a fault based on the fault code.

Fault diagnosis method, electronic device, and storage medium

A fault detection method and a fault detection device for external antennas, where the method comprises generating a first detection signal and transmitting the first detection signal using a main antenna, detecting whether a diversity antenna receives the first detection signal, acquiring a signal strength difference between the signals received by the main antenna and the diversity antenna, respectively, determining that the diversity antenna is faulty when the signal strength difference is not less than a first threshold, determining that the main antenna is faulty when the signal strength difference is not larger than a second threshold, and determining that the main antenna and the diversity antenna are faulty when the signal strength difference is larger than the second threshold and less than the first threshold.

Growing community of inventors

Shenzhen, China

Pinhui Chen