摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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. A control portion of the measuring apparatus receives the current value and the voltage value from the load terminal via a communication means. The control portion calculates a power value based on the received current value and voltage value, as well as on the voltage waveform acquired from the voltage sensor and the current waveform acquired from the current sensor.
摘要:
The present invention relates to a communication adapter apparatus that 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 according to the invention 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, the communication adapter including: communication control means that controls transmission and reception of data to and from the network; apparatus communication managing means that copies and saves the apparatus object, saves a procedure for a communication service of the communication control means, and makes it possible to use the connection object apparatus from the network using these saved data; and apparatus interface means that is defined by standards common to all the apparatuses in order to make all the plural communication object apparatuses connectable.
摘要:
A frequency characteristics measurer is disposed in the vicinity of an end of refrigerant piping, the end of which is connected to an outdoor unit, that connects the outdoor unit and an indoor unit of an air conditioner, and measures frequency characteristics of the refrigerant piping. A filter is attached at a position between the outdoor unit and a position where a terminal of the frequency characteristics measurer is connected, so as to wrap the refrigerant piping. A piping length calculator is connected to the frequency characteristics measurer via an interface cable, and acquires, via the interface cable, frequency characteristics measured by means of the frequency characteristics measurer. The piping length calculator extracts a lowest anti-resonant frequency from the acquired frequency characteristics, and calculates the length of the refrigerant piping on the basis of the extracted lowest anti-resonant frequency.
摘要:
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.
摘要:
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. The apparatus state detector includes measuring means that measures a physical quantity of an environment in which an apparatus is placed, feature-quantity calculation means that calculates a feature quantity of the measured value measured by the measuring means, storage means that stores in advance the feature quantity of each apparatus and an apparatus state associated with the feature quantity in a reference-apparatus entry dictionary, and apparatus-state detection means that searches the reference-apparatus entry dictionary for a feature quantity by using a feature quantity calculated by the feature-quantity calculation means as a search key and detects an apparatus state based on the apparatus state associated with the retrieved feature quantity.
摘要:
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.