Abstract: A power measuring system, a measuring apparatus, a load terminal, and a device control system are provided. A voltage sensor detects a voltage waveform, and a current sensor acquires a current waveform, of a power line in a noncontact manner. A load terminal operates to connect the power line and a voltage measuring terminal to measure a current flowing from the power line to a load and to calculate a voltage value from the measured current value and the load. The load terminal transmits, in response to a request from a measuring apparatus, the measured current value and the calculated voltage value to the measuring apparatus via a communication means. A control portion of the measuring apparatus receives the current value and the voltage value from the load terminal. The control portion calculates a power value based on the received current value, voltage value voltage waveform and current waveform.

Abstract: Probes of a conductor length measurement device are connected to piping, and an output voltage is applied to the piping through the probes. A frequency spectrum curve is subsequently calculated by subjecting a voltage signal to FFT. Resonant frequencies of the piping are then determined from this frequency spectrum curve, and the total length of the piping is calculated on the basis of the resonant frequencies. The total length of the piping can therefore be easily measured without the need to install, for example, any measurement instruments at branch terminals.

Abstract: An acceleration sensor detects an acceleration. A timer measures elapsed time. A calculation means calculates jerk J of a remote controller on the basis of an acceleration detected by the acceleration sensor. A factor determination means determines whether a user is holding the remote controller in his/her hand on the basis of the change of the jerk J that is obtained from an index value calculated by the calculation means and an amount of time measured by the timer. A sleep control means turns on display of a display if the factor determination means determines that the user is holding the remote controller in his/her hand.

Abstract: To provide a positioning system that clearly defines a disposition of a base station for identifying a position of a radio set. While a wireless base station 1 that transmits and receives a distance-measuring signal to and from a terminal 2 to be measured by wireless communication is disposed at each corner forming an equilateral triangular, the length of each side of the equilateral triangle is made to be a maximum communication distance of the wireless base station 1.

Abstract: An air conditioning equipment having an in-room unit connected to one end of the refrigerant pipes and an out-room unit connected to the other end of the refrigerant pipes. The air conditioning equipment includes signal coupling portions which are respectively disposed at both end parts of the refrigerant pipes. Each of the signal coupling portions couples an alternating current (AC) control signal to the refrigerant pipes and exhibits a predetermined impedance with respect to an AC electric signal. The configuration of the air conditioning equipment brings forth the advantages that the electrical insulation devices used in the prior art are dispensed with, and the signal transmissions between the in-room unit and the out-room unit can be performed by a simple apparatus configuration.

Abstract: A communication adapter apparatus connects electrical apparatuses, sensors, and other apparatuses to a network. In order to obtain a communication adapter apparatus that is capable of realizing simplification of setting at the time of execution of works, simplification of execution of works, reduction of power consumption, and simplification of system setting, the communication adapter apparatus is a communication adapter that connects one of plural connection object apparatuses having an apparatus object consisting of information, which is based on functions of the apparatuses, and operable control items, respectively and a network to which a controller for remotely controlling the connection object apparatus is connected.

Abstract: As for a position input apparatus that, when a user applies a pressure to an operation area, determines a pressed position where the pressure is applied, the manufacturing cost of the position input apparatus is reduced. An operation plate is a flat plate having the operation area on one surface. A plurality of pressure sensors (pressure detection devices) detect, at respectively different pressure detection positions, a detection position pressure generated by the pressure applied to the pressed position. A pressed position determination device determines the pressed position, based on a plurality of detection position pressures detected by the plurality of pressure sensors.

Abstract: An input/output apparatus is provided which is capable of preventing electric shock without reinforcing the insulation of a power-supply unit and capable of connecting to a USB, a LAN, or the like. An input/output apparatus includes a power-supply circuit that uses electric power as the power supply of the present apparatus, which is generated in a resonance circuit by an induction of an AC magnetic field from the resonance circuit on the apparatus main body side, and a communication circuit that transmits and receives a signal between a resonance circuit of the present apparatus and a resonance circuit on the apparatus main body side, and capable of being insulated from the power supply of the apparatus main body by receiving electric power from the apparatus main body in a non-contact state and by communicating with the apparatus main body in a non-contact state, thereby.

Abstract: An air conditioning equipment having an in-room unit connected to one end of the refrigerant pipes and an out-room unit connected to the other end of the refrigerant pipes. The air conditioning equipment includes signal coupling portions which are respectively disposed at both end parts of the refrigerant pipes. Each of the signal coupling portions couples an alternating current (AC) control signal to the refrigerant pipes and exhibits a predetermined impedance with respect to an AC electric signal. The configuration of the air conditioning equipment brings forth the advantages that the electrical insulation devices used in the prior art are dispensed with, and the signal transmissions between the in-room unit and the out-room unit can be performed by a simple apparatus configuration.

Abstract: Wireless power supply and information communication are achieved between electronic circuit substrates in the electronic equipment, and the size of the circuitry for achieving the above is reduced. There are provided a first electronic circuit substrate, a second electronic circuit substrate, a first coil connected to the first electronic circuit substrate, and a second coil connected to the second electronic circuit substrate. Power is transmitted from the first coil to the second coil by electromagnetic induction so that the first electronic circuit substrate and the second electronic circuit substrate are electrically connected.

Abstract: An apparatus state detector and its associates are provided to save time and effort for learning combinations of operation states of all apparatuses at home and commit fewer estimation errors even when an unknown apparatus starts operating.

Abstract: An air conditioning equipment having an in-room unit connected to one end of the refrigerant pipes and an out-room unit connected to the other end of the refrigerant pipes. The air conditioning equipment includes signal coupling portions which are respectively disposed at both end parts of the refrigerant pipes. Each of the signal coupling portions couples an alternating current (AC) control signal to the refrigerant pipes and exhibits a predetermined impedance with respect to an AC electric signal. The configuration of the air conditioning equipment brings forth the advantages that the electrical insulation devices used in the prior art are dispensed with, and the signal transmissions between the in-room unit and the out-room unit can be performed by a simple apparatus configuration.

Abstract: An air conditioning equipment having an in-room unit connected to one end of the refrigerant pipes and an out-room unit connected to the other end of the refrigerant pipes. The air conditioning equipment includes signal coupling portions which are respectively disposed at both end parts of the refrigerant pipes. Each of the signal coupling portions couples an alternating current (AC) control signal to the refrigerant pipes and exhibits a predetermined impedance with respect to an AC electric signal. The configuration of the air conditioning equipment brings forth the advantages that the electrical insulation devices used in the prior art are dispensed with, and the signal transmissions between the in-room unit and the out-room unit can be performed by a simple apparatus configuration.

Abstract: A power measuring system, a measuring apparatus, a load terminal, and a device control system are provided, which need no special installation work to be made by any skillful professionals such as persons qualified for electrical work. A voltage sensor detects a voltage waveform of a power line in a noncontact manner, and a current sensor acquires a current waveform of the power line in a noncontact manner. A measuring portion of a load terminal operates a contact means to connect the power line and a voltage measuring terminal to measure a current flowing from the power line to a load and to calculate a voltage value from the measured current value and the load. The measuring portion of the load terminal transmits, in response to a request from a measuring apparatus, the measured current value and the calculated voltage value to the measuring apparatus via a communication means.

Abstract: An air conditioning equipment having an in-room unit connected to one end of the refrigerant pipes and an out-room unit connected to the other end of the refrigerant pipes. The air conditioning equipment includes signal coupling portions which are respectively disposed at both end parts of the refrigerant pipes. Each of the signal coupling portions couples an alternating current (AC) control signal to the refrigerant pipes and exhibits a predetermined impedance with respect to an AC electric signal. The configuration of the air conditioning equipment brings forth the advantages that the electrical insulation devices used in the prior art are dispensed with, and the signal transmissions between the in-room unit and the out-room unit can be performed by a simple apparatus configuration.

Abstract: To provide a positioning system that clearly defines a disposition of a base station for identifying a position of a radio set. While a wireless base station 1 that transmits and receives a distance-measuring signal to and from a terminal 2 to be measured by wireless communication is disposed at each corner forming an equilateral triangular, the length of each side of the equilateral triangle is made to be a maximum communication distance of the wireless base station 1.

Abstract: When a prior-art transmission scheme is to be applied to an airconditioning equipment already installed in a building or a house, refrigerant pipes serving as communication media and an in-room unit as well as an out-room unit need to be insulated, so that steel pipes near both the ends of each refrigerant pipe have been inevitably replaced with electrical insulation devices. (Means for Resolution) An airconditioning equipment having an in-room unit 2 connected to one end of refrigerant pipes 3, 4, and an out-room unit 1 connected to the other end of the refrigerant pipes 3, 4, is characterized by comprising signal coupling portions 7 which are respectively disposed at both the end parts of the refrigerant pipes 3, 4, each of which couples an AC control signal to the refrigerant pipes 3, 4, and each of which exhibits a predetermined impedance with respect to an AC electric signal.

Abstract: The present invention relates to a communication adapter apparatus that connects electrical apparatuses, sensors, and other apparatuses to a network.

Abstract: In an optical communications apparatus of one office having a light sending device which has a plurality of coupling ends adapted to be coupled with a light transmitting optical fiber for connecting individual offices and which sends a transmission signal in the form of light, and a light receiving device which receives a light signal; an optical communications apparatus comprising light sending means connecting the respective coupling ends and the light sending device through optical fibers, light receiving means connecting the respective coupling ends and the light receiving device through optical fibers, and pass-through means for passing the light signals between the coupling ends.

Abstract: A terminal unit for use in an information transmission system disposed between an information transmission line in the information transmission system constituted of signal lines for transmitting a signal by conduction therethrough of a direct current having positive polarity and negative polarity and controlled equipment as one terminal of the system, including at least a coupling circuit for transmitting and receiving a signal to and from the transmission line by converting the signal into a direct current as aforesaid and converting such a direct current into the signal, a transmission control device controlling transmission and reception of a signal according to a protocol for signal transmission, and a transmission circuit and a reception circuit disposed between the coupling circuit and transmission control device for making signal transmission and reception, respectively, and further, comprising a polarity detection circuit for detecting polarity of the direct current voltage supplied from the signal l