Omron Corporation

Tokyo Gas Company Limited

Architect Grand Design, Inc.

Naotsugu Ueda

Hiroyuki Mino

Kayo Nakamura

Ryusuke Sakai

Katsuyuki Yamamoto

Satoshi Nozoe

Takanobu Yamauchi

Masakazu Suzuki

Yuhei Motoki

Shuji Kawahara

Yoshitaka Tsurukame

Shuji Maeda

Shuichi Misumi

Toshimitsu Fujiwara

Yasushi Shimomoto

Hideyuki Nakao

Hirohisa Sakuma

Yuji Tsukuma

Yuji Tsuji

Katsuyuki Yugami

Izumi Kurose

Kazuhiro Eiji

Hirotaka Okuda

Yoshiteru Kono

Yoshihisa Toyosaki

Masashige Fukumoto

A seismic sensor according to one or more embodiments may include: an acceleration measuring unit configured to repeatedly measure acceleration in three directions orthogonal to each other; and an index value calculator configured to operate in a measurement mode for calculating an index value of a magnitude of an earthquake based on a measurement result of acceleration in at least one direction by the acceleration measuring unit, and to operate in a standby mode with less power consumption than power consumption in the measurement mode. Then, the acceleration measuring unit monitors establishment of an activation condition that N times (M≥N≥2) measurement results in consecutive M times (M≥2) measurement results of acceleration in a predetermined direction exceed an acceleration threshold value. When the acceleration measuring unit detects establishment of the activation condition, the index value calculator transitions from the standby mode to the measurement mode.

Seismic sensor and sensor control method

A data generating apparatus includes a selector configured to select, from a plurality of criteria determined for situation items which are determination targets, one criterion corresponding to first virtual sensing data representative of a first determination result with respect to a situation in a surrounding of the physical sensor; and a determination unit configured to determine the situation in the surrounding of the physical sensor with respect to each of the situation items, based on physical sensing data, by using the selected criterion, and to generate second virtual sensing data representative of a second determination result with respect to the situation.

Data generating apparatus, data generating method, data generating program and sensing apparatus

A seismic sensor includes a measurement unit configured to measure acceleration; an earthquake determination unit configured to determine whether or not an earthquake has occurred based on the acceleration measured in a predetermined determination period; an index calculator configured to calculate an index value indicating a scale of an earthquake in an earthquake processing period after the predetermined determination period, when the earthquake determination unit determines that an earthquake has occurred; a continuous earthquake determination unit configured to determine whether or not an earthquake has occurred, based on the acceleration measured in the earthquake processing period; and a shut-off determination unit configured to inhibit output of the shut-off signal regardless of the index value when the continuous earthquake determination unit determines that no earthquake has occurred.

Seismic sensor and earthquake determination method

A multifunctional environmental sensor device is connectable to a terminal of an electronic device for use. The sensor device includes a substrate, a plurality of different types of components mounted on the substrate and including at least a light emitter and an illuminance sensor, and a wiring pattern located on a surface of the substrate and including a contact to be in contact with the terminal of the electronic device. The light emitter is mounted on a surface of the substrate opposite to a surface of the substrate on which the illuminance sensor is mounted.

Multifunctional environmental sensor device

A detection device for detecting characteristics of a mixed fluid containing different types of substances with different thermal properties within a prescribed range, includes: one or a plurality of heaters for heating the mixed fluid; a plurality of temperature detectors for detecting the temperature of the mixed fluid heated; a flow rate calculation unit for calculating the flow rate of the mixed fluid using the output from at least a portion of the plurality of temperature detectors; a correspondence relation storage unit that stores the correspondence relation between the output from the temperature detectors for a prescribed flow rate and the mixture ratio of the substances in the mixed fluid; and a mixture ratio calculation unit for calculating the mixture ratio of the substances in the mixed fluid on the basis of the output from the temperature detectors and the correspondence relation.

Detection device

Provided is a technique that can more reliably suppress erroneous determination of noise as an earthquake, in a seismic sensor. The seismic sensor operates in a power saving mode and a measurement mode with higher power consumption than that of the power saving mode. The seismic sensor includes: a measurement unit configured to measure acceleration; an earthquake determination unit configured to determine whether or not an earthquake has occurred based on the acceleration measured in a predetermined determination period after shifting to the measurement mode when shifting from the power saving mode to the measurement mode in a case where acceleration measured by the measurement unit exceeds a predetermined threshold; and an index calculator configured to calculate an index value indicating a scale of an earthquake in an earthquake processing period after the predetermined determination period, when the earthquake determination unit determines that an earthquake has occurred. The earthquake determination unit determines an occurrence of an earthquake based on the presence or absence of a pulse waveform in a waveform of acceleration measured in the determination period, and/or a frequency characteristic or a convergence characteristic after the pulse waveform in a waveform of the acceleration.

Erroneous determination of noise as an earthquake is reduced in a seismic sensor. The seismic sensor operates in a power saving mode and a measurement mode in which power consumption is larger than that in the power saving mode. The seismic sensor includes: a measurement unit configured to measure acceleration; an earthquake determinator configured to transition from the power saving mode to the measurement mode when the acceleration measured by the measurement unit exceeds a predetermined threshold, to determine whether an earthquake is generated based on the acceleration measured in the measurement mode; and an index calculator configured to calculate an index value indicating a scale of the earthquake when the earthquake determinator determines that the earthquake is generated. The earthquake determinator determines whether the earthquake is generated by determining whether a predetermined condition is satisfied, the predetermined condition being determined based on the acceleration measured in at least one determination period, each determination period into which a period after the power saving mode transitions to the measurement mode is divided being set to a processing unit, and the measurement mode transitions to the power saving mode when the earthquake determinator determines that the earthquake is not generated.

Provided is a technique that can suppress erroneous determination of noise as an earthquake in a seismic sensor and erroneous output of a shut-off signal. The seismic sensor includes: an earthquake determination unit configured to determine an occurrence of an earthquake based on acceleration measured in a determination period after shifting from a power saving mode to a measurement mode with higher power consumption when measured acceleration exceeds a predetermined threshold; and an index calculator configured to calculate an index value indicating a scale of an earthquake in an earthquake processing period after the determination period, when the earthquake determination unit determines that an earthquake has occurred. The seismic sensor causes output of a shut-off signal when the index value is equal to or larger than a threshold in the earthquake processing period. The seismic sensor further includes: a continuous earthquake determination unit configured to determine whether or not an earthquake has occurred, based on acceleration measured in the earthquake processing period; and a shut-off determination unit configured to inhibit output of the shut-off signal regardless of the index value when the continuous earthquake determination unit determines that no earthquake has occurred.

An environment sensor includes a heat generation component, a first sensor and a second sensor disposed such that conductive heat resistances between the first sensor and the heat generation component and between the second sensor and the heat generation component are different from each other, and a controller. The first sensor and the second sensor are capable of measuring a predetermined physical quantity. The first sensor and the second sensor obtain a measured value from the predetermined physical quantity. The measured value fluctuates depending on ambient temperature. The controller is configured to correct the measurement value of one of the first sensor and the second sensor based on the measurement value of the first sensor and the measurement value of the second sensor when the predetermined physical quantity is measured.

Environment sensor

The flow rate measuring apparatus according to one aspect of the present invention is a flow rate measuring apparatus that intermittently measures the flow rate of a fluid, comprising a heating unit for heating the fluid; a control unit that controls a drive voltage for driving the heating unit, or the interval at which the drive voltage is applied, to the desired value; a temperature sensing unit that senses information about the temperature of the heated fluid; and a flow rate measurement unit that measures the flow rate of the fluid on the basis of the sensing signal outputted from the temperature sensing unit, wherein, in intermittently measuring the flow rate, the control unit varies the heating amount of the heating unit in each measurement by varying the interval at which the drive voltage is applied.

Flow rate measuring apparatus

A sensor device includes a housing and a sensor component mounted in the housing. The housing has two or more vents. The sensor component is located on a path connecting two of the vents. The sensor component may include a temperature sensor, a humidity sensor, or a microphone. The sensor component may be located on a path connecting two vents in substantially facing surfaces of the housing.

Sensor device

An environmental sensor including a plurality of sensor elements that measure a plurality of physical quantities associated with a surrounding environment detects moving of an environmental sensor based on an illuminance and a change in the illuminance among the plurality of physical quantities, and transmits an alert signal to a user when the moving of the environmental sensor is detected.

Environmental sensor

A technique enables horizontal measurement of the airspeed of a low-speed flight vehicle. An airspeed measurement system is for a low-speed flight vehicle, and includes a flow sensor that measures an airspeed along at least two axes in a horizontal direction during flight of the low-speed flight vehicle.

Airspeed measurement system

An environmental sensor for measuring physical quantities associated with a surrounding environment includes one or more sensor elements that detect the physical quantities, and a communication unit that transmits, when a physical quantity detected by at least one of the sensor elements included in the environmental sensor changes in accordance with a predetermined rule, a predetermined maintenance signal including unit identification information identifying at least the environmental sensor.

An environmental sensor for measuring physical quantities associated with a surrounding environment includes one or more sensor elements that detect the physical quantities, and a user recognition unit that recognizes a change in a physical quantity detected by at least one of the sensor elements as being caused by a user when the physical quantity changes in accordance with a predetermined rule.

Growing community of inventors

Kusatsu, Japan

Naotsugu Ueda