Abstract: A power distribution unit (PDU) and a setting method thereof are provided. The PDU includes a signal input port, a power output port and an embedded system. The embedded system is coupled to the signal input port and the power output port and configured to provide a setting interface. The setting interface is configured to set a current provided by the power output port and a corresponding logic value combination of a plurality of signals received by the signal input port, so as to generate an output rule of the PDU. In response to a plurality of input signals received by the signal input port, the embedded system controls an output of the power output port according to a logic value combination of the received input signal and the set output rule.

Abstract: A kilowatt-hour meter with remote environment detect and control is provided. Besides calculating and display a quantity of used electricity through the kilowatt-hour meter, the kilowatt-hour meter with remote environment detect and control can also perform remote data collection and environment detect and control through an Ethernet. A plurality of the kilowatt-hour meters with remote environment detect and control can be connected through network connection, so as to detect and control situations related to safety of using electricity such as over current warning, environment state, access control, etc., for prompt processing.

Abstract: A kilowatt-hour meter with remote environment detect and control is provided. Besides calculating and display a quantity of used electricity through the kilowatt-hour meter, the kilowatt-hour meter with remote environment detect and control can also perform remote data collection and environment detect and control through an Ethernet. A plurality of the kilowatt-hour meters with remote environment detect and control can be connected through network connection, so as to detect and control situations related to safety of using electricity such as over current warning, environment state, access control, etc., for prompt processing.

Abstract: A multiple power sources control system has several power input sides can switch a power source to other power sources of power input sides as original power source of one of power input sides has an abnormal phenomenon (such as no power supply, too low or high voltage and abnormal frequency, etc.) such that loads can keep obtaining supplied power. In addition, power of loads has better protection because of multiple input power supply.

Abstract: Disclosed herein is a DC uninterruptible power system which is composed of a AC voltage and frequency detecting circuit, an AC to DC conversion and charging circuit, a DC voltage conversion circuit, a load detecting circuit, an output voltage detecting circuit, and a control circuit. The UPS of the present invention can minimize the power loss due to one stage conversion so as to improve system efficiency, and maintain a stable output voltage. Beside, a lighting equipment is installed for illuminating surroundings in case the utility voltage becomes abnormal.

Abstract: A power lock device for safe power output/input is a control lock composed of coding devices, decoding devices and electromagnetic switches. The coded signal will attach to the power transmitting line and keeps on transmitting. After discerning that the coded signal is correct, the decoding device turns on electromagnetic switches and conducts power to transmit. If the code is not correct, the decoding device uses the electromagnetic switches to cut off power and achieves the function of power control.

Abstract: Disclosed is a lighting equipment built-in on-line uninterruptible power system (UPS) Capable of supplying AC sinusoidal power from a single DC source by boosting up the DC voltage of its battery unit and inverting it to an AC sinusoidal output via a DC to AC inverter circuit according to pulse width modulation (PWM) signals successively delivered by a controller circuit during the utility power failure, and at the same time, starts the built-in lighting equipment to illuminate the surroundings. The AC output power is intensified and stabilized through series and parallel connections of the inner circuit components of the UPS.

Abstract: This unattendant data center environment protection, control and management system is able to provide means for monitoring temperature and humidity, managing power supply, and controlling access condition for a protected zone, and further, able to achieve the aim of remote control and management effect in any situation and from any distance by means of phone communication, interconnection to local network, or the internet web.

Abstract: A networked-based remotely-controlled power switch device is proposed, which can be coupled to an electricity-powered system, such as a personal computer (PC), a TV, or a video recorder, to allow the electricity-powered system to be powered ON or OFF through remote control by a remote computer system via a network system, such as Internet, Ethernet, or PSTN (Public Switched Telephone Network). This power switch device allows a user without an Internet account to be nevertheless able to use a remote PC system for remote ON/OFF control of the electricity-powered system. Further, in addition to instant ON/OFF control, this power device also allows the user to perform scheduled ON/OFF control to the electricity-powered system so that the electricity-powered system can be automatically powered ON or OFF at a specified time.

Abstract: An ON-LINE uninterrupted power supply (UPS) of this invention serving as a long term high quality power supply for web, telecommunication, security system, etc is characterized in detecting a ring signal from far end for ON/OFF control of an output power and in permitting omni-range input civil power to avoid any unstable output power.