Abstract: The present disclosure relates to the technical field of communications. Disclosed are a signal transmission method and device, and a terminal, which can improve the reliability of receiving a signal. The present disclosure is applied to a signal transmission system. The signal transmission system comprises: a first antenna and a global system for mobile communications (GSM) transceiver, wherein the GSM transceiver sends a GSM low-frequency signal to the first antenna, and the first antenna receives a GNSS signal and the GSM low-frequency signal sent by the GSM transceiver. The present disclosure is applicable to receiving a GNSS signal and a GSM low-frequency signal by using one antenna.

Abstract: The present disclosure provides a household appliance control method, which includes: receiving pupil detection information sent by a household appliance, the pupil detection information being acquired when the household appliance detects pupils of a user; determining whether the household appliance satisfies a preset control condition according to the pupil detection information; and sending a control instruction to the household appliance to enable the household appliance to be turned on or turned off according to the control instruction, when the household appliance satisfies the preset control condition. Correspondingly, the present disclosure also provides a central processing device including a household appliance control device. By utilizing embodiments of the present disclosure, the household appliances can be turned on or turned off automatically according to eyes of the user, and user experience is enhanced.