Abstract: An information processing device includes an estimation unit estimating the number of persons in a facility based on a first number of MAC addresses counted based on first information about MAC addresses collected from radio waves transmitted by first terminals during a first time period, and a learned model, and a determination unit determining a third number of MAC addresses changing randomly, from the first number based on a first half of each of the MAC addresses. The learned model is generated by machine learning teacher data defining a relationship between a second number of MAC addresses counted based on second information about MAC addresses collected from radio waves transmitted from second terminals in the facility during a second time period, and the actual number of persons in the facility. The estimation unit estimates part of the number of the persons based on the third number and the learned model.

Abstract: An information processing device includes a processor configured to: receive first positional information related to a position of a portable device from the portable device; extract transmitters located within a certain area including a first positional coordinate, which is a positional coordinate of the portable device based on the first positional information, from among registered transmitters, calculate respective distances between transmitters within the certain area and the portable device, and extract a predetermined number or less of transmitters based on the calculated distances from among the transmitters within the certain area; and transmit first identification information of the predetermined number or less of transmitters, which allows the portable device to determine whether the first identification information includes second identification information indicating a transmitter transmitted from the transmitter in and to perform a particular process when the first identification information inc

Abstract: A washer-equipped screw is provided with a screw body, a metal washer, and a rubber washer. The screw body includes a cylindrical portion between a shaft portion on which a screw groove is formed and a head portion. A hole in the metal washer is inserted through the cylindrical portion so as to be adjacent to the head portion. A hole in the rubber washer is inserted through the cylindrical portion and positioned on a shaft portion side of the metal washer. A seat surface of the head portion has an inclined surface inclined away from the metal washer toward an outer periphery thereof.

Abstract: An information processing device includes a processor configured to: receive first positional information related to a position of a portable device from the portable device; extract transmitters located within a certain area including a first positional coordinate, which is a positional coordinate of the portable device based on the first positional information, from among registered transmitters, calculate respective distances between transmitters within the certain area and the portable device, and extract a predetermined number or less of transmitters based on the calculated distances from among the transmitters within the certain area; and transmit first identification information of the predetermined number or less of transmitters, which allows the portable device to determine whether the first identification information includes second identification information indicating a transmitter transmitted from the transmitter in and to perform a particular process when the first identification information inc

Abstract: A washer-equipped screw is provided with a screw body, a metal washer, and a rubber washer. The screw body includes a cylindrical portion between a shaft portion on which a screw groove is formed and a head portion. A hole in the metal washer is inserted through the cylindrical portion so as to be adjacent to the head portion. A hole in the rubber washer is inserted through the cylindrical portion and positioned on a shaft portion side of the metal washer. A seat surface of the head portion has an inclined surface inclined away from the metal washer toward an outer periphery thereof.

Abstract: A PCV valve is arranged in an outflow passage. An ECU controls rotation of a motor such that an opening degree of the PCV valve increases in response to an increase in an opening degree of a throttle valve. The outflow passage connects an interior of a head cover of an engine to a portion of an intake air passage located on a downstream side of the throttle valve. The outflow passage recirculates blow-by gas leaked from a combustion chamber into an interior of a crankcase to the portion of the intake air passage located on the downstream side of the throttle valve. An inflow passage connects the interior of the head cover to a portion of the intake air passage located on an upstream side of the throttle valve. The inflow passage conducts intake air from the intake air passage to the interior of the head cover.

Abstract: A throttle device which prevents the entry of foreign compounds into a slidable contact portion between a brush and a commutator is provided to prevent the malfunctioning of a motor. A first shielding portion is integrally formed in a brush holder, which is attached to a yoke of a motor for holding a brush. The plate-shaped first shielding portion covers the vicinity of the yoke in the outer periphery of the yoke. Accordingly, the first shielding portion covers a gap left between the yoke and the brush holder, and a slidable contact portion between a commutator and the brush on a throttle gear side. Therefore, the first shielding portion prevents a foreign compound, generated in an engagement portion between the throttle gear and a reduction gear and falling onto a motor, from moving to the slidable contact portion, so that it is possible to prevent poor contact between the commutator and the brush.

Abstract: A throttle device which prevents the entry of foreign compounds into a slidable contact portion between a brush and a commutator is provided to prevent the malfunctioning of a motor. A first shielding portion is integrally formed in a brush holder, which is attached to a yoke of a motor for holding a brush. The plate-shaped first shielding portion covers the vicinity of the yoke in the outer periphery of the yoke. Accordingly, the first shielding portion covers a gap left between the yoke and the brush holder, and a slidable contact portion between a commutator and the brush on a throttle gear side. Therefore, the first shielding portion prevents a foreign compound, generated in an engagement portion between the throttle gear and a reduction gear and falling onto a motor, from moving to the slidable contact portion, so that it is possible to prevent poor contact between the commutator and the brush.

Abstract: In a throttle valve device for an internal combustion engine, a stepped portion is formed on an outer peripheral surface of an inner ring on a bore side (on an air intake passage side) in order to limit movement of a lip portion of a first lip seal on the bore side toward an inside of a rolling bearing. Thus, even if a high supercharging pressure above an atmospheric pressure acts on the first lip seal, deformation and curling of the lip portion due to the supercharging pressure can be prevented. As a result, separation of a second lip seal on a gear cover side (on an outside) from the rolling bearing can be prevented.

Abstract: A fluid control solenoid valve includes a fluid passage having a valve seat therein. The solenoid valve further includes a bellows having a valve element and a retractable bellows portion continuous with the valve element. The valve element opens the fluid passage when lifted from the valve seat, and closes the fluid passage when seated onto the valve seat. A first spring urges the valve element in a valve lifting direction away from the valve seat, while a second spring urges the valve element in a valve seating direction toward the valve seat. An electromagnetic actuator is further provided for moving the valve element in the valve lifting direction, when energized. The first spring is interposed between an adjusting screw and the valve element. The adjusting screw is arranged to be extended at a high temperature so as to increase a biasing force of the first spring urging the valve element in the valve lifting direction.