Abstract: A movable structure includes: a moving part pivoting about a predetermined axis; a sensor module provided at the moving part or at a site interlocked with the moving part; and a control device controlling the moving part and the sensor module. The control device controls the moving part in such a way that the sensor module takes a first attitude, and gives a calibration instruction to the sensor module. The sensor module includes: an inertial sensor; a calibration unit calculating an attitude of the sensor module based on an output signal from the inertial sensor in response to the calibration instruction and generating correction information based on a difference between the calculated attitude and the first attitude; and a correction unit correcting the output signal from the inertial sensor, based on the correction information.

Abstract: A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, adjusting error information in a manner of determining whether or not the output of the angular velocity sensor is within an effective range and, when it is determined that the output of the angular velocity sensor is not within the effective range, increasing a posture error component in error information and reducing a correlation component between the posture error component and an error component other than the posture error component in the error information, and correcting the predicted posture information of the object based on the error information.

Abstract: A sensor unit includes a first sidewall, a second sidewall, a third sidewall connected to one end of the first sidewall and one end of the second sidewall, and a fourth sidewall opposed to the third sidewall of a container including a lid, a first connector, and a second connector. The first connector is attached to the first sidewall further on the side of the fourth sidewall than the side of the third sidewall. The second connector is attached to the second sidewall further on the side of the third sidewall than the side of the fourth sidewall.

Abstract: A posture estimation method includes: measuring a bias value BW and a variance value PWW of an angular velocity sensor and a bias value BA and a variance value PVV of an acceleration sensor in a predetermined operation of an object and storing the measured values in a storage unit; reading the bias value BW, the variance value PWW, the bias value BA, and the variance value PVV from the storage unit and setting the read values as initial setting values during reset; and estimating a posture of the object using a Kalman filter from an output of the angular velocity sensor and an output of the acceleration sensor.

Abstract: A sensor unit includes a substrate, an inertial sensor module mounted at the substrate, a container including a storage space for storing the substrate and the inertial sensor module, and a coupling member that couples the container and the substrate in a state in which the substrate and the container are in non-contact with each other. The coupling member has elasticity, and an elastic modulus of the coupling member is smaller than an elastic modulus of the container.

Abstract: An inertial measurement device includes a sensor unit having an angular velocity sensor and an acceleration sensor, an elastic member that has a first portion, a second portion facing the first portion, and a third portion coupled to the second portion, and sandwiches the sensor unit between the first portion and the second portion, a fixing portion on which the sensor unit and the elastic member are disposed and which is in contact with the second portion, and a fixing member that fixes the sensor unit and the elastic member to the fixing portion. The fixing member passes through the sensor unit and the elastic member, and presses and fixes the elastic member. The third portion of the elastic member is positioned between the sensor unit and the fixing member.

Abstract: A sensor unit includes: a substrate; an inertial sensor module mounted at the substrate; a container including a storage space for storing the substrate and the inertial sensor module; and a gel material disposed in the storage space, in which the gel material is located between the container and the substrate, and disposed to overlap with the inertial sensor module, in plan view of the substrate, and the substrate is kept in a non-contact state with the container by interposition of the gel material.

Abstract: A sensor unit includes a substrate, an inertial sensor module mounted at the substrate, a container including a storage space for storing the substrate and the inertial sensor module, and a coupling member that couples the container and the substrate in a state in which the substrate and the container are in non-contact with each other. The coupling member has elasticity, and an elastic modulus of the coupling member is smaller than an elastic modulus of the container.

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).

Abstract: A movable structure includes: a moving part pivoting about a predetermined axis; a sensor module provided at the moving part or at a site interlocked with the moving part; and a control device controlling the moving part and the sensor module. The control device controls the moving part in such a way that the sensor module takes a first attitude, and gives a calibration instruction to the sensor module. The sensor module includes: an inertial sensor; a calibration unit calculating an attitude of the sensor module based on an output signal from the inertial sensor in response to the calibration instruction and generating correction information based on a difference between the calculated attitude and the first attitude; and a correction unit correcting the output signal from the inertial sensor, based on the correction information.

Abstract: A sensor unit includes: a sensor module having an inertial sensor installed therein and having a bottom wall and a sidewall; abase where the sensor module is provided; a first bonding member bonding the base and the sidewall together; and a second bonding member bonding the base and the bottom wall together. The sensor module is a polygon as viewed in a plan view of the bottom wall. The base and the sidewall are bonded together via the first bonding member at a part of at least one side of the polygon except corners.

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).

Abstract: A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, adjusting error information in a manner of determining whether or not the output of the angular velocity sensor is within an effective range and, when it is determined that the output of the angular velocity sensor is not within the effective range, increasing a posture error component in error information and reducing a correlation component between the posture error component and an error component other than the posture error component in the error information, and correcting the predicted posture information of the object based on the error information.

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).

Abstract: A sensor unit includes a first sidewall, a second sidewall, a third sidewall connected to one end of the first sidewall and one end of the second sidewall, and a fourth sidewall opposed to the third sidewall of a container including a lid, a first connector, and a second connector. The first connector is attached to the first sidewall further on the side of the fourth sidewall than the side of the third sidewall. The second connector is attached to the second sidewall further on the side of the third sidewall than the side of the fourth sidewall.

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).

Abstract: A liquid level meter includes: an exterior portion having an internal space which a liquid to be measured flows in; and a pressure sensitive portion provided inside the exterior portion and having a pressure sensitive surface; wherein the exterior has holes that it is arranged on each of a vertically lower side and a vertically upper side relative to the pressure sensitive surface, and the holes connect an inside and outside of the internal space.

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).