118results about How to "Extend the sensing range" patented technology

A family of wall-mounted electrical fixtures, both for lighting control and electrical power or signal delivery, having a modular design. Said modular design predominately isolating those components that are directly connected to in-wall wiring within a wall-mounted base and low-voltage control and communication components, such as sensors, user-interface elements, programmable logic and wireless communication modules, within an aesthetically-appealing, easily-detachable faceplate assembly.

An inversed microphone module is provided. The module includes a substrate, a microphone chip, a back acoustic cavity cover, and a sealing material. The substrate has a plurality of connection pads and an acoustic hole. The microphone chip has a first surface and an opposite second surface. A plurality of electrically bonding portions and an acoustic sensing are disposed on the first surface. The microphone chip is electrically coupled to the connection pads of the substrate through the electrically bonding portions, and the acoustic hole corresponds to the acoustic sensing portion. The back acoustic cavity cover is fixed to the second surface and defines a back acoustic cavity with the acoustic sensing portion and the microphone chip. The sealing material encapsulates the microphone chip and covers the substrate, so that the sealing material, the substrate, the acoustic sensing portion, and the first surface define a front acoustic cavity.

An optical fiber sensing system includes a sensing optical fiber and one or more optical amplifiers in series with the sensing fiber and arranged to increase the power of sensing pulses travelling along the fiber to thereby increase the range of the sensing system. The optical fiber sensing system is one selected from the group including an optical fiber distributed acoustic sensor (DAS), an optical fiber distributed temperature sensor (DTS), or an optical time domain reflectometry (OTDR) system.

Micro-machined capacitive sensors implemented in micro-electro-mechanical system (MEMS) processes that have higher sensitivity, while providing an increased linear capacitive sensing range. Capacitive sensing is achieved via variable-area sensing, which employs a transduction mechanism in which the relationship between changes in the capacitance of variable, parallel-plate capacitors and displacements of a proof mass is generally linear. Each respective variable, parallel-plate capacitor is formed by a finger/electrode pair, in which both the finger and the electrode have rectangular tooth profiles that include a plurality of rectangular teeth. Because changes in the overlapping area of the finger and the electrode are multiplied by the number of rectangular teeth, while the standing capacity of the micro-machined capacitive sensor remains relatively high, the sensitivity of the micro-machined capacitive sensor employing variable-area sensing is significantly increased per unit area of the finger and the electrode.

A pen-like optical input device includes a body. A light source, a light sensing unit and a lens are disposed in the body, a light ray is emitted by the light source to the outside of the body, and a reflected light ray is generated outside the body. The reflected light ray then is received by the light sensing unit after being refracted by the lens, in which the light sensing unit has a light receiving surface, and a normal of the light receiving surface inclines to an optical axis of the lens, thereby forming an angle with the optical axis.

A dual-diaphragm acoustic transducer includes a substrate defining an opening, an inner diaphragm and an outer diaphragm concentrically mounted at one same side of the substrate corresponding to the opening of the substrate, and a plurality of elastic supporting members connected between the outer perimeter of the inner diaphragm and the inner perimeter of the outer diaphragm. Thus, when a sound wave enters the opening of the substrate, the sound wave pressure forces the outer diaphragm to displace and to carry the inner diaphragm to move, and the inner diaphragm itself will also be forced by the sound wave pressure to have a larger displacement than the outer diaphragm, enhancing the sensitivity. Further, using the inner and outer diaphragms to respond to different sound wave pressures can enhance the sound wave pressure sensing range.

Provided is an apparatus and method for hierarchically providing a context-aware service by real-time user behavior analysis, autonomously collecting information required for the context-aware service using a smart device, and autonomously configuring the service. The apparatus for hierarchical context awareness and device autonomous configuration through a real-time user behavior analysis includes a fast context aware engine configured to receive user data, infer a context, and provide a primary response context aware service, and a fine context aware engine configured to provide a secondary response context aware service using context information inferred by the fast context aware engine and machine learning prediction data, wherein the fast context aware engine reconfigures a resource of a smart device to suit a service.

A sensing method of a touch panel is provided. The touch panel includes N control lines, M groups of sense lines and a touch sensor array having a plurality of sensors arranged in M rows and N columns. The N control lines are coupled to N columns of sensors. The M groups of sense lines are coupled to M rows of sensors. The sensing method includes the following steps: alternately driving the N control lines to alternately enable the N columns of sensors to detect a touch event, wherein P control lines are driven at a time such that P sensors within each of the M rows of sensors are enabled simultaneously, and P is a positive integer greater than one; and receiving P sensing results generated by the enabled P sensors through a corresponding group of sense lines, and generating a sensing output according to the P sensing results.

The invention provides a continuous rail occupation checking system based on a fiber bragg grating sensing technology. Sufficiently dense fiber bragg grating sensors are paved along a rail, and the fiber bragg grating sensors realize continuous rail occupation checking by measuring pressure strain generated by vehicle wheels on the occupied rail. Through the special packaging and design of the sensors, the sensing range of each sensing point can be enlarged to the maximum extent. Through the reasonable arrangement of the sensors, the generation of dead segments can be avoided, and the continuous rail occupation checking is realized. The checking system is not influenced by the external using environments such as lightning, traction current, rail transmission parameters, track bed resistance and wheel rail contact resistance. The continuous rail occupation checking system does not need to pave cables, saves the investment, and has a good anti-theft effect. Through the adoption of the continuous rail occupation checking system, a relay does not need to be provided separately; indoor equipment is reduced; the engineering investment is reduced; and the problem of high cost of the existing rail occupation checking equipment is solved. Moreover, an optical cable is fixed by a clamping tool, so that damage to the rail is reduced, and convenience is brought to the construction.

A radio-frequency (RF) system includes a substrate; a plurality of antenna strings, formed on a first plane of the substrate, each comprising a plurality of radiating units connected in a sequence, wherein the plurality of antenna strings are classified into a first group and a second group; a plurality of wires, formed on a second plane of the substrate, for transmitting RF signals; a plurality of connecting units, disposed in the substrate, for coupling the plurality of wires and antenna strings of the second group; a first RF processing module, for transmitting or receiving RF signals via antenna strings of the first group, and a second RF processing module, for coupling to the antenna strings of the second group through the plurality of wires and the plurality of connecting units, so as to transmit or receive RF signals via the antenna strings of the second group.

The invention discloses a flexible composite film with high sensitivity and wide sensing range and an application thereof, and belongs to the application field of wearable sensors, electronic skin and the like. The invention aims to solve the technical problems that the binding force between a flexible substrate and an active material is not strong, the durability of the material is not strong, and the sensing range is not large enough. The flexible composite film comprises an MXene/TPU composite film and PDMS films, wherein the PDMS films are arranged on two sides of the MXene/TPU composite film and are bonded with the MXene/TPU composite film into a whole; wherein the MXene/TPU composite film is prepared by the following steps: preparing a TPU film by adopting a film coating method, spraying a colloidal aqueous solution prepared from 2D Ti3C2MXene nanosheets, and drying. The product is suitable for a series of applications such as health detection, motion signal detection, robot motion detection, wearable electronic equipment and the like.

The invention relates to an optical fiber acousto-optic torsion and displacement sensor and more particularly, to a torsion and displacement sensor arranged on an acousto-optic modulator based on a few-mode or multi-mode optical fiber. The optical fiber acousto-optic torsion and displacement sensor of the invention, more particularly, relates to a torsion and displacement sensor arranged on an acousto-optic modulator based on a few-mode or multi-mode optical fiber. The sensor of the invention is designed to overcome the axial angle torsion in construction structure security and internal damage detection as well as the shortcomings of the current technology of a micro displacement sensor and therefore, an optical fiber acousto-optic torsion and displacement sensor suitable for use in a micro space dangerous environment is provided. Through the transmission of detection light in different modes by the optical fiber acousto-optic modulator through one single few-mode optical fiber, the detection light is converted by the different angle torsions and the micro displacement amounts of a detected object into the torsion amount and the displacement amount of an image monitoring and capturing system; and an image identifying algorithm realizes the dynamic monitoring. According to the invention, in a dangerous environment, the sensor can simultaneously the axial torsion and the three-dimensional micro displacement of a detected object, and is not provided with the intersecting sensitivity between the temperature and the axial stress, therefore, capable of being created by a cost-effective image identifying system.

The invention relates to the technical field of fire detection and particularly relates to an intelligent fire detection and alarming system. The intelligent fire detection and alarming system comprises monitoring points, a first sensor module, a second sensor module, a third sensor module, a monitoring terminal, a data analysis and comparison module, an unmanned aerial vehicle monitoring module and a remote sensing image receiving module, wherein the monitoring points comprise an indoor acquisition point and an outdoor acquisition point, the first sensor module is arranged at the indoor acquisition point, the fire thus has a large sensing range, and the application scenes are wide; the unmanned aerial vehicle monitoring module is internally provided with a photographing module, the fire condition in a fire field can be photographed in real time, and a commander at the monitoring terminal can make proper treatment in time; and the remote sensing image receiving module receives a remotesensing image of the fire field in a first time, a fire condition history database is matched for analysis, and high efficiency and safety of a fire extinguishing process are more facilitated.

A sensing margin expanding scheme for a memory and a method therefor is disclosed. A first terminal of a first capacitor is coupled to a bit line. A first terminal of a second capacitor is coupled to a reference voltage. In a first phase, the controller controls a first common switch and a second common switch to store the voltage difference between the bit line and the reference voltage to the first capacitor and the second capacitor. In a second phase, controlling the first common switch and the second common switch to open the first terminal of the first capacitor and the second terminal of the second capacitor and open the second terminal of the first capacitor and the first terminal of the second capacitor, and then coupling the second terminal of the first capacitor and the second terminal of the second capacitor to a common voltage.

The invention relates to an escalator armrest illuminating device, and belongs to the field of elevator auxiliary equipment. The escalator armrest illuminating device comprises an armrest belt; an armrest bracket is mounted below the armrest belt; and the bottom of the armrest bracket is fixedly connected with an armrest illuminating lamp strip wire groove. The escalator armrest illuminating device is characterized in that an armrest illuminating lamp wire groove cover is arranged at the lower end of the armrest illuminating lamp wire groove; an armrest illuminating lamp strip is mounted in the armrest illuminating lamp wire groove; the armrest bracket and the armrest illuminating lamp wire groove are connected by a cross head sunk screw; and multiple pressure sensors are arranged on the armrest belt for connecting with the armrest illuminating lamp strip through time relays. The escalator armrest illuminating device has the following beneficial effects: as the lamp strip is mounted in independent wire groove without suffering from the effect of external force, the lamp strip is guaranteed to be not pressed and damaged; meanwhile, the mounting mode is simple in installation and convenient for maintenance; and as the pressure sensors, the time relays and an independent power supply are used, the energy is saved, and the illumination still can be guaranteed in external power failure.

A reduction-oxidation sensor device and a manufacturing method thereof are provided. The reduction-oxidation sensor device includes a first electrode, at least one sensing structure and a second electrode. The first electrode is located on a substrate. The at least one sensing structure is located on the first electrode and the substrate. The at least one sensing structure includes a metal nanowire layer and a metal oxide layer. The metal nanowire layer is disposed on the first electrode and the substrate. The metal nanowire layer is wrapped by the metal oxide layer. The second electrode is located on the at least one sensing structure.