Abstract: A control method for controlling a device that includes a plurality of communication modules including a long-distance communication module that is a communication module for long-distance wireless communication and a short-distance communication module that is a communication module for short-distance wireless communication, the device being capable of being connected through each of the plurality of communication modules to a server that manages the device, the control method includes: receiving information necessary to the short-distance wireless communication by the short-distance communication module, when the long-distance communication module and the short-distance communication module are not operating; determining whether the information satisfies a condition indicating that the information received in the receiving is sufficient for a first connection to the server using the short-distance communication module; and causing the long-distance communication module to start operating, when it is determi

Abstract: Apparatus includes a plurality of wireless communication modules for connecting apparatus to a server that manages the apparatus via a plurality of networks different from one another; storage that stores, for each of the networks, a characteristic regarding communication; acquirer that acquires communication information indicating, for each of communication modules, whether communication via the communication module is possible; identifier that identifies a specific communication module from among communication modules, the specific communication module being indicated by the communication information as being a communication module via which communication is possible, and being selected based on the characteristic; and controller that causes the specific communication module identified by identifier to connect to the server to enable communication.

Abstract: A device includes: N communication modules, a selector that selects one communication module, an obtainer that obtains a reception strength of a signal, a generator that generates an image that includes 2N display regions associated with the N communication modules in order of communication speed from slower to faster per two display regions counted from a reference position along one direction, and a display. The generator generates, as the image, an image displaying (i) a graphic of a first type in, among the two display regions associated with the one communication module, more display regions counted from proximity to the reference position along the one direction, with an increase in the reception strength of the one communication module, and (ii) the graphic of the first type in each of two display regions associated with a communication module that communicates at a slower speed than the one communication module.

Abstract: A wireless communication device of the present disclosure, to which an electric power measurement value is input that is measured in an electric power measurer to which a power supply side power line and a load side power line are connected, includes a first antenna element that transmits and receives radio waves and a wireless circuit connected to the first antenna element. The first antenna element has a longitudinal side perpendicular to a line along which the power supply side power line and the load side power line extend.

Abstract: An appliance management system includes an appliance, a server that manages the appliance and that can be connected to the appliance via a plurality of different networks, and a selection device provided in a communication channel that connects the server and each of one or more networks of the plurality of networks. The selection device selects, from the plurality of networks, one network to be used for communication between the appliance and the server based on a comparison of communication-related properties of the plurality of networks and causes the appliance and the server to communicate via the selected one network.

Abstract: A wireless communication device includes: flow-rate measuring unit connected to fluid pipe; and first antenna element that transmits and receives a radio wave. First antenna element has a longer side orthogonal to an axis of fluid pipe. According to this configuration, a direction of a plane of polarization of a radio wave radiated from first antenna element is orthogonal to fluid pipe. Thus, the radio wave is not reflected by fluid pipe but propagates in a direction toward fluid pipe, namely, in a rear surface direction of a meter including the wireless communication device.

Abstract: Apparatus includes a plurality of wireless communication modules for connecting apparatus to a server that manages the apparatus via a plurality of networks different from one another; storage that stores, for each of the networks, a characteristic regarding communication; acquirer that acquires communication information indicating, for each of communication modules, whether communication via the communication module is possible; identifier that identifies a specific communication module from among communication modules, the specific communication module being indicated by the communication information as being a communication module via which communication is possible, and being selected based on the characteristic; and controller that causes the specific communication module identified by identifier to connect to the server to enable communication.

Abstract: A control method for controlling a device that includes a plurality of communication modules including a long-distance communication module that is a communication module for long-distance wireless communication and a short-distance communication module that is a communication module for short-distance wireless communication, the device being capable of being connected through each of the plurality of communication modules to a server that manages the device, the control method includes: receiving information necessary to the short-distance wireless communication by the short-distance communication module, when the long-distance communication module and the short-distance communication module are not operating; determining whether the information satisfies a condition indicating that the information received in the receiving is sufficient for a first connection to the server using the short-distance communication module; and causing the long-distance communication module to start operating, when it is determi

Abstract: A device includes: N communication modules, a selector that selects one communication module, an obtainer that obtains a reception strength of a signal, a generator that generates an image that includes 2N display regions associated with the N communication modules in order of communication speed from slower to faster per two display regions counted from a reference position along one direction, and a display. The generator generates, as the image, an image displaying (i) a graphic of a first type in, among the two display regions associated with the one communication module, more display regions counted from proximity to the reference position along the one direction, with an increase in the reception strength of the one communication module, and (ii) the graphic of the first type in each of two display regions associated with a communication module that communicates at a slower speed than the one communication module.

Abstract: A wireless communication device of the present disclosure, to which an electric power measurement value is input that is measured in an electric power measurer to which a power supply side power line and a load side power line are connected, includes a first antenna element that transmits and receives radio waves and a wireless circuit connected to the first antenna element. The first antenna element has a longitudinal side perpendicular to a line along which the power supply side power line and the load side power line extend.

Abstract: A wireless communication device includes: flow-rate measuring unit connected to fluid pipe; and first antenna element that transmits and receives a radio wave. First antenna element has a longer side orthogonal to an axis of fluid pipe. According to this configuration, a direction of a plane of polarization of a radio wave radiated from first antenna element is orthogonal to fluid pipe. Thus, the radio wave is not reflected by fluid pipe but propagates in a direction toward fluid pipe, namely, in a rear surface direction of a meter including the wireless communication device.

Abstract: The present application discloses antenna device including first and second antenna elements which communicate radio waves; housing which stores processor for processing signals in response to the radio waves; first and second element covers for storing first and second antenna elements, respectively. First element cover includes first rotary cylinder, which is held by housing and rotatable around first rotational axis, and first protruding cylinder, which protrudes from first rotary cylinder, first rotary cylinder protruding from housing along first rotational axis. Second element cover includes second rotary cylinder, which is held by housing and rotatable around second rotational axis, and second protruding cylinder, which protrudes from second rotary cylinder, second rotary cylinder protruding from housing along second rotational axis.

Abstract: A radio device of the present invention includes a radiation conductor which converts a radio frequency signal into an electric wave and radiates the electric wave; a circuit board electrically connected to the radiation conductor and incorporating an electric circuit for supplying the radio frequency signal to the radiation conductor a planar grounded conductor electrically connected to the electric circuit on the circuit board and placed such that the grounded conductor faces the radiation conductor, the grounded conductor constituting a ground of the radiation conductor; and a resin-made casing for accommodating the radiation conductor, the circuit board and the grounded conductor; wherein the grounded conductor, the circuit board and the radiation conductor are placed in this order in a thickness direction of the circuit board.

Abstract: A radio communication device includes a first antenna, a second antenna, a phase varying section that varies a phase of a first RF signal received by or transmitted from the first antenna, and a phase control section that causes the phase varying section to vary a phase amount, which is a varied amount of the phase of the first RF signal received by or transmitted from the first antenna. Thus, it is possible to prevent the size of a device configuration from increasing and avoid the lowering of a reception electric field level in a localized area.

Abstract: The present application discloses antenna device including first and second antenna elements which communicate radio waves; housing which stores processor for processing signals in response to the radio waves; first and second element covers for storing first and second antenna elements, respectively. First element cover includes first rotary cylinder, which is held by housing and rotatable around first rotational axis, and first protruding cylinder, which protrudes from first rotary cylinder, first rotary cylinder protruding from housing along first rotational axis. Second element cover includes second rotary cylinder, which is held by housing and rotatable around second rotational axis, and second protruding cylinder, which protrudes from second rotary cylinder, second rotary cylinder protruding from housing along second rotational axis.

Abstract: A wireless communication device includes a transmission data generator which segments transmission data into a plurality of subslots and then generates a plurality of slots each including a predetermined number of subslots from among the plurality of subslots, and a transmitter which transmits the plurality of slots generated by the transmission data generator. The time length T1 of the subslots is equal to or smaller than an oscillator stopping time which is determined on the basis of a change in voltage of a commercial AC power supply.

Abstract: The radio communication device offers data communication with no adverse effect of EMI radiation. In response to EMI radiation detected by the radiation detector, the controller changes the normal communication mode into the avoidance communication mode. In the avoidance communication mode, the transmitter prepares a transmission packet so as to satisfy the following relational expressions: T1=T0/2/M and T2=T0/2 (where, T0 represents the cycle of an AC power source; T1 represents the transmission time; and T2 represents the transmission cycle). The transmission power changer determines the transmission power by multiplying T2/T1 to the transmission power in the normal communication mode. The transmission rate changer determines the transmission rate by multiplying T2/T1 to the transmission rate in the normal communication mode. The transmission packet is transmitted in synchronization with the stopping time of EMI radiation detected by the timing detector.

Abstract: A radio communication device of the present invention comprises a first antenna, a second antenna, a phase varying section which varies a phase of a first RF signal received by or transmitted from the first antenna, and a phase control means which causes the phase varying section to vary a phase amount which is a varied amount of the phase of the first RF signal received by or transmitted from the first antenna. Thus, it is possible to prevent that a size of a device configuration increases and avoid that a reception electric field level is lowered in a localized area.

Abstract: A radio device of the present invention includes a radiation conductor which converts a radio frequency signal into an electric wave and radiates the electric wave; a circuit board electrically connected to the radiation conductor and incorporating an electric circuit for supplying the radio frequency signal to the radiation conductor a planar grounded conductor electrically connected to the electric circuit on the circuit board and placed such that the grounded conductor faces the radiation conductor, the grounded conductor constituting a ground of the radiation conductor; and a resin-made casing for accommodating the radiation conductor, the circuit board and the grounded conductor; wherein the grounded conductor, the circuit board and the radiation conductor are placed in this order in a thickness direction of the circuit board.

Abstract: A wireless communication device includes a transmission data generator which segments transmission data into a plurality of subslots and then generates a plurality of slots each including a predetermined number of subslots from among the plurality of subslots, and a transmitter which transmits the plurality of slots generated by the transmission data generator. The time length T1 of the subslots is equal to or smaller than an oscillator stopping time which is determined on the basis of a change in voltage of a commercial AC power supply.