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 gas meter according to the present invention includes flow rate measuring part that measures a flow rate of gas flowing through flow passage, shutoff valve that shuts off flow passage, wireless communicator that periodically performs wireless communication externally, and communication interval setting part that sets a communication interval in wireless communication. Communication interval setting part sets the communication interval according to the flow rate of gas measured by flow rate measuring part. By changing a setting of the communication interval according to the flow rate measured by flow rate measuring part, it is possible to enhance a responsiveness required according to the flow rate of gas measured by flow rate measuring part while a minimum necessary communication frequency is maintained. Accordingly, the power saving can be achieved and also convenience can be maintained.

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: 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: To provide a portable terminal which can detect the using modes of the portable terminal, can reduce the number of members necessary for detecting the using modes and further can reduce leakage magnetic force badly influencing on other devices. A portable terminal 10 includes a first casing 11 and a second casing 12 having inner side surfaces 11a, 12a capable of opposing to each other, respectively, and a hinge 13 for coupling the first casing 11 and the first casing 11. The first casing 11 is provided with magnetic materials 21, 22a, 22b and the casing 12 is provided with magnetic sensors 24, 25a, 25b for detecting the magnetic materials 21, 22a, 22b, respectively. The magnetic sensors 24, 25a, 25b and the magnetic materials 21, 22a, 22b detect the using modes including a folded state or a bent state of the first casing 11 and the casing 12.

Abstract: To provide a portable terminal which can detect the using modes of the portable terminal, can reduce the number of members necessary for detecting the using modes and further can reduce leakage magnetic force badly influencing on other devices. A portable terminal 10 includes a first casing 11 and a second casing 12 having inner side surfaces 11a, 12a capable of opposing to each other, respectively, and a hinge 13 for coupling the first casing 11 and the first casing 11. The first casing 11 is provided with magnetic materials 21, 22a, 22b and the casing 12 is provided with magnetic sensors 24, 25a, 25b for detecting the magnetic materials 21, 22a, 22b, respectively. The magnetic sensors 24, 25a, 25b and the magnetic materials 21, 22a, 22b detect the using modes including a folded state or a bent state of the first casing 11 and the casing 12.