Abstract: A method for keeping remote connection, an electronic device, and a server are provided. After establishing a first network connection, the electronic device enters a power-saving state from an operation state. While operating in the power-saving state, a communication module of the electronic device continuously detects a keep-alive packet transmitted by the server via the first network connection. If an error of reception of the keep-alive packet occurs, the electronic device returns to the operation state from the power-saving state in response to a wake-up signal, so as to re-establish a second network connection between the electronic device and the server.

Abstract: A method for keeping remote connection, an electronic device, and a server are provided. After establishing a first network connection, the electronic device enters a power-saving state from an operation state. While operating in the power-saving state, a communication module of the electronic device continuously detects a keep-alive packet transmitted by the server via the first network connection. If an error of reception of the keep-alive packet occurs, the electronic device returns to the operation state from the power-saving state in response to a wake-up signal, so as to re-establish a second network connection between the electronic device and the server.

Abstract: The present invention is related to a power saving apparatus of an air conditioner during sleep. According to the present invention, a curtain is mounted above a bed to enclose a small space to form a small air conditioning space, and by placing an indoor unit of a split-typed air conditioner above the small space, the power consumption of the air conditioner during sleep can be reduced.

Abstract: The present invention is related to a method for saving power of an air conditioner during sleep. According to the present invention, a curtain is mounted above a bed to enclose a small space to form a small air conditioning space, and by placing an indoor unit of a split-typed air conditioner above the small space, the power consumption of the air conditioner during sleep can be reduced.

Abstract: The present invention provides a power source to transform external power to DC driving power and has an air fan and a fan driving circuit connecting to a detection element to detect operation temperature inside the power supply and output a temperature control signal. Through the temperature control signal, the DC driving power is determined to drive the air fan at a required rotation speed. The power supply further has a status display circuit which includes at least two switches and two lighting elements. The switches are set at different ON/OFF levels and triggered by the temperature control signal or the fan driving circuit to determine whether ON/OFF of the switches be activated. The lighting elements are connected to the switches and driven by the DC driving power to emit light in the ON condition of the switches.