Abstract: A power switch module including a switch element, an electromagnetic relay (EMR) and a switching circuit is provided. A first terminal of the switch element is grounded. A control terminal of the switch element receives a driving signal. First control terminals of the switching circuit and the EMR are coupled to a DC power. Second control terminals of the switching circuit and the EMR are coupled to a second terminal of the switch element. Power input terminals of the switching circuit and the EMR are coupled to each other and coupled to an input terminal of the power switch module. Power output terminals of the switching circuit and the EMR are coupled to each other and coupled to an output terminal of the power switch module. The switching circuit is configured to prevent an arc phenomenon caused on the EMR when the EMR is turned on or turned off.

Abstract: A sparkless socket including a socket, a sensing module, a controller, a switching module, a pressing stick and a mechanical switch is provided. The sensing module includes an emitter and a receiver. The receiver receives an infrared light emitted by the emitter through a light guide element module and holes on slots of the socket and generates a sensing result accordingly. The pressing stick is pressed by a plug if the plug is plugged into the socket. The mechanical switch is controlled by the pressing stick to generate a first signal. The switching module is controlled by the controller to transmit an AC power provided by a city power system from the controller to the socket. The controller determines whether the plug is plugged into the socket according to the sensing result and the first signal and thereby enables or disables the switching module.

Abstract: An apparatus for detecting quality of an indoor power distribution line including a power input module, a switch circuit, a load circuit and a detecting module is provided. The power input module receives an AC power through an indoor power distribution line. The switch circuit is controlled by the detecting module to transmit the AC power to the load circuit. When the switch circuit is on, the detecting module detects a voltage and a current of the load circuit to respectively serve as a first voltage value and a first current value. When the switch circuit is off, the detecting module detects a voltage of the AC power to serve as a second voltage value. The detecting module determines the quality of the indoor power distribution line based on a measurement resistance thereof obtained according to the first voltage value, the first current value and the second voltage value.

Abstract: A power switch module including a switch element, an electromagnetic relay (EMR) and a switching circuit is provided. A first terminal of the switch element is grounded. A control terminal of the switch element receives a driving signal. First control terminals of the switching circuit and the EMR are coupled to a DC power. Second control terminals of the switching circuit and the EMR are coupled to a second terminal of the switch element. Power input terminals of the switching circuit and the EMR are coupled to each other and coupled to an input terminal of the power switch module. Power output terminals of the switching circuit and the EMR are coupled to each other and coupled to an output terminal of the power switch module. The switching circuit is configured to prevent an arc phenomenon caused on the EMR when the EMR is turned on or turned off.

Abstract: An apparatus for detecting quality of an indoor power distribution line including a power input module, a switch circuit, a load circuit and a detecting module is provided. The power input module receives an AC power through an indoor power distribution line. The switch circuit is controlled by the detecting module to transmit the AC power to the load circuit. When the switch circuit is on, the detecting module detects a voltage and a current of the load circuit to respectively serve as a first voltage value and a first current value. When the switch circuit is off, the detecting module detects a voltage of the AC power to serve as a second voltage value. The detecting module determines the quality of the indoor power distribution line based on a measurement resistance thereof obtained according to the first voltage value, the first current value and the second voltage value.

Abstract: An electric appliance monitor method and an monitor system are provided. The method includes the following steps. In a sampling period, data of an electric appliance is transmitted to a cloud server, and a load boundary is determined. The electric appliance is detected to obtain a measured power factor, a measured root-mean-square voltage and a measured power. Further, a supply frequency of an electric supply is recognized. Based on the measured data, a real part and an imaginary part of the load current related to a reflection coefficient of the electric appliance during the current usage state is calculated. On a real-imaginary current coordinate system, the load boundary and a coordinated point representing to the real part and imaginary part of the load current are displayed. Whether to execute a protection process is determined according to the load boundary, the real part and the imaginary part of the load current.

Abstract: A multiport power transmission apparatus is provided. The multiport power transmission apparatus includes a PCB, sockets, switching modules, metal cross-lines, a neutral-line metal bar, and a live-line metal bar. The sockets and the switching modules are disposed on a component side of the PCB. The neutral-line metal bar and the live-line metal bar are disposed on a solder side of the PCB. The live-line metal bar is disposed between an orthogonal projection pattern of each socket and the neutral-line metal bar. A power input pin of each switching module is connected to the live-line metal bar through the solder side. A power-output pin of each switching module is connected to a live pin of a corresponding socket through the solder side. Two terminals of each metal cross-line are respectively connected to a neutral pin of a corresponding socket and the neutral-line metal bar through the solder side.

Abstract: A power transmission apparatus with over-loading protection and power-saving mechanism is provided. The power transmission apparatus includes a switch module and a control module. The switch module includes a first switch circuit, a second switch circuit and a protection circuit. The first switch circuit is coupled between a power input module and a power supply port. The second switch circuit is coupled to the power input module. The protection circuit is coupled between the second switch circuit and the power supply port and detects a load power of the power supply port when the second switch circuit is turned-on. When the load power is greater than a predetermined over-loading threshold, the protection circuit enables the first switch circuit. After the control module determines that the first switch circuit is enabled, the control module controls the first switch circuit keeps enabling and disables the second switch circuit and the protection circuit.

Abstract: A power monitoring system comprises an input module, a plurality of switches, a plurality of power supply ports, a detecting module, a control module, and a wireless transmission module. The each switch was set in between the input module, and each switch has an address. The detecting module generates a power loading value by set in between the input module and each power supply port. The control module connects to switches, the detecting module and the wireless transmission module, thus, the control module can read the power loading values from the detecting module, and control each switch which corresponds to the address by a preset rule or a command from the wireless transmission module. It will not only save energy but also improve the electricity security for the household.

Abstract: A sparkless socket including a socket, a sensing module, a controller, a switching module, a pressing stick and a mechanical switch is provided. The sensing module includes an emitter and a receiver. The receiver receives an infrared light emitted by the emitter through a light guide element module and holes on slots of the socket and generates a sensing result accordingly. The pressing stick is pressed by a plug if the plug is plugged into the socket. The mechanical switch is controlled by the pressing stick to generate a first signal. The switching module is controlled by the controller to transmit an AC power provided by a city power system from the controller to the socket. The controller determines whether the plug is plugged into the socket according to the sensing result and the first signal and thereby enables or disables the switching module.

Abstract: A sparkless socket is provided. The sparkless socket includes a socket, a sensing module, a controller, and a switching module. The sensing module includes an emitter and a receiver. The emitter emits infrared light. The receiver receives the infrared light form the emitter through a light guide element module and through holes on slots of the socket and generates a sensing result accordingly. The controller is coupled to the sensing module to receive the sensing result. The controller is coupled to a city power system. The switching module is coupled between the socket and the controller to receive AC power provided by the city power system from the controller and is controlled by the controller to transmit the AC power to the socket. The controller determines whether a plug is plugged into the socket according to the sensing result and thereby enables or disables the switching module.

Abstract: A multiport power transmission apparatus is provided. The multiport power transmission apparatus includes a PCB, sockets, switching modules, metal cross-lines, a neutral-line metal bar, and a live-line metal bar. The sockets and the switching modules are disposed on a component side of the PCB. The neutral-line metal bar and the live-line metal bar are disposed on a solder side of the PCB. The live-line metal bar is disposed between an orthogonal projection pattern of each socket and the neutral-line metal bar. A power input pin of each switching module is connected to the live-line metal bar through the solder side. A power-output pin of each switching module is connected to a live pin of a corresponding socket through the solder side. Two terminals of each metal cross-line are respectively connected to a neutral pin of a corresponding socket and the neutral-line metal bar through the solder side.

Abstract: An electric appliance monitor method and an monitor system are provided. The method includes the following steps. In a sampling period, data of an electric appliance is transmitted to a cloud server, and a load boundary is determined. The electric appliance is detected to obtain a measured power factor, a measured root-mean-square voltage and a measured power. Further, a supply frequency of an electric supply is recognized. Based on the measured data, a real part and an imaginary part of the load current related to a reflection coefficient of the electric appliance during the current usage state is calculated. On a real-imaginary current coordinate system, the load boundary and a coordinated point representing to the real part and imaginary part of the load current are displayed. Whether to execute a protection process is determined according to the load boundary, the real part and the imaginary part of the load current.

Abstract: A power transmission apparatus with over-loading protection and power-saving mechanism is provided. The power transmission apparatus includes a switch module and a control module. The switch module includes a first switch circuit, a second switch circuit and a protection circuit. The first switch circuit is coupled between a power input module and a power supply port. The second switch circuit is coupled to the power input module. The protection circuit is coupled between the second switch circuit and the power supply port and detects a load power of the power supply port when the second switch circuit is turned-on. When the load power is greater than a predetermined over-loading threshold, the protection circuit enables the first switch circuit. After the control module determines that the first switch circuit is enabled, the control module controls the first switch circuit keeps enabling and disables the second switch circuit and the protection circuit.

Abstract: A power monitoring system comprises an input module, a plurality of switches, a plurality of power supply ports, a detecting module, a control module, and a wireless transmission module. The each switch was set in between the input module, and each switch has an address. The detecting module generates a power loading value by set in between the input module and each power supply port. The control module connects to switches, the detecting module and the wireless transmission module, thus, the control module can read the power loading values from the detecting module, and control each switch which corresponds to the address by a preset rule or a command from the wireless transmission module. It will not only save energy but also improve the electricity security for the household.