摘要:
A microelectromechanical sensor device has a detection structure and an associated electronic circuitry; the electronic circuitry receives, when the microelectromechanical sensor device is powered, an external power supply voltage and is provided with a voltage regulator which generates a regulated voltage having a different value from the external power supply voltage and at least one voltage domain powered by the regulated voltage. The electronic circuitry has a power supply management core, always powered by the external power supply voltage and controlling the voltage regulator to interrupt power supply to the voltage domain and implement a first power-down condition of the microelectromechanical sensor device.
摘要:
Provided are a sensing circuit and a sensing method thereof, a sensor chip, and a display panel. The sensing circuit includes a first transistor including a first gate and a second gate, a first capacitor, a read circuit, and a bias compensation circuit. The first gate receives a sensing signal outputted by a sensor. The first capacitor is connected between the second gate and a first fixed potential signal terminal. The read circuit is connected between the first transistor and an output terminal of the sensing circuit. The bias compensation circuit is electrically connected to the first transistor and configured to input a bias voltage into the second gate of the first transistor. The bias voltage received by the second gate reduce the threshold voltage drift of the first transistor.
摘要:
This power cable comprises at least one conductive element and further comprises: at least one means (36) for measuring at least one physical quantity; at least one electronic circuit (32), connected to the measurement means (36) and suitable for receiving from the at least one measurement means (36) at least one signal representative of the at least one physical quantity; and at least one energy harvesting system (30) disposed inside the cable, suitable for supplying the at least one electronic circuit (32) with electrical energy from the electrical energy available in the at least one conductive element.
摘要:
The invention relates to a freeze-dryer product sensor (1). The freeze-dryer product sensor (1) comprises a transducer (13) for sensing a product parameter and an RFID unit (14). In a storage unit (28) of the RFID unit (14) at least one characteristic parameter (29) specific to the freeze-dryer product sensor (1) is stored.According to the invention the freeze-dryer product sensor (1) comprises only one single antenna unit (3), which leads to a reduced effort in constructing the freeze-dryer product sensor (1).The inventive freeze-dryer product sensor may be employed in a drying vessel. The invention also relates to a method for operating such a freeze-dryer product sensor.
摘要:
Wearable apparatus for monitoring various physiological and environmental factors are provided. Real-time, noninvasive health and environmental monitors include a plurality of compact sensors integrated within small, low-profile devices, such as earpiece modules. Physiological and environmental data is collected and wirelessly transmitted into a wireless network, where the data is stored and/or processed.
摘要:
A sensor fiber for the detection of changes of temperature, bending, and/or torsion includes a multicore optical waveguide with a fiber Bragg grating (FBG) structure. One embodiment contains at least two FBG cores and a surrounding cladding. The sensor fiber is characterized by one or more distinction and orientation means which produce a marker zone to assign and label each individual FBG core.
摘要:
A sensor system and method of using the system synergistically to improve the accuracy and usefulness of measured results is described. The system is comprised of electronically linked components that act as markers to trigger events, producers that gather data from sensors and aggregators that combine the data from a plurality of producers using triggers from marker devices to select the data of interest. The system is shown to be applicable to selection of data regions of interest and to analysis of the data to improve accuracy. The analysis of the data of any particular sensor within the system makes use of extrinsic data, being data generated by other sensors and intrinsic data, that is data or data limits that are known to be true from nature, laws of physics or just the particular information the user wants to acquire. The system is demonstrated on the analysis of Doppler radar measurements of a thrown object.
摘要:
A computer implemented method, computer program product and computer system for sensor selection. The computer system can run the computer program to execute the method by dividing a two-dimensional area into cells, wherein the cells are arranged in a grid; receiving a selection trigger for a subset of cells of the grid, wherein at least one cell of the subset has at least one sensor and the at least one cell has a sampling frequency associated; determining a set of constraints for the at least one sensor; selecting the at least one sensor if the at least one sensor complies with the set of constraints; and calculating a sampling frequency of the at least one sensor dependent on the sampling frequency of the at least one cell.
摘要:
An aspect of the disclosure includes a method, a system and a computer program product. The method includes measuring a first data with a sensor, the sensor and operatively coupled computing resources having at least two power states, an operating power state and a low power state, the low power state consuming less energy than the operating power state. A first time period is determined for measuring a second data, the first time period being based at least in part on the first data. The sensor is operated, and operatively coupled computing resources at the low power state during the first time period, wherein no data measurements are acquired during the first time period. The sensor is changed to the operating power state at an expiration of the first time period.
摘要:
A device for converting radio-frequency energy into DC current, receiving at least one radio-frequency signal at input and generating at output a DC current capable of powering at least one load. The device has at least two conversion stages, each including: a radio-frequency filtering module, connected to a first input node of the conversion stage, configured to filter the radio-frequency signal; a voltage shift module, connected between a second input node of the conversion stage, the radio-frequency filtering module and an intermediate node of the conversion stage, configured to shift a voltage present at the first input node to the intermediate node; a voltage rectifier module, connected between the intermediate note, the second input node and an output node of the conversion stage, configured to rectify the voltage of the intermediate node and deliver a rectified voltage on the output node.