32results about How to "Working distance" patented technology

A platform for converting a signal between optical and electrical form and vice versa is provided. The platform includes a dielectric mount, a semiconductor light source and optical fibers. Some of these components are fabricated separately and then brought together in an integrated assembly together with a focusing lens. The platform permits the self-alignment of the optical fibers in a flip-chip vertical cavity surface emitting laser (VCSEL) array module package. The self-alignment of the optical fibers is achieved by the engineering of the geometrical dimensions of the platform. The techniques may be used to form large-scale integrated opto-electronic circuits and switching networks.

The present invention provides a kinetic target simulator system, especially for a simulation system of radiation characteristic and the real-time changing condition in the course that missile threat simulation system imitates missile access. The kinetic target simulator system includes a radiation power, a radiation intensity adjusting and controlling module, an image system module, a moving and controlling module and a main control module, wherein, the radiation power adopts a laser radiation power. The invention adopts the laser radiation power as radiation power, having better directing property, far working distance, quick speed of intensity modulation and light system. The system has widely practical value, fit for all kinds of kinetic target simulator systems.

A transmission extension adapter for connection between a work head and the chuck of a power hand tool includes a cylindrical cap shell coupled to the power hand tool around the chuck and having radial through holes and a positioning member in each radial through hole. An axle sleeve is rotatably coupled to the cylindrical cap shell and has locating holes on the periphery thereof. A transmission axle is inserted through the axle sleeve and has a rear end connected to the chuck and a front end connected with a supplementary chuck for holding the work head. A front cap assembly is affixed to the front end of the axle sleeve to hold an automatic feeder for allowing rotation of the automatic feeder with the axle sleeve. A multi-angle positioning device is adapted for holding down the positioning members in the locating holes to lock the axle sleeve.

The invention relates to the field of laser, in particular to a light beam shaping structure of a semiconductor array laser which adopts a self-focusing lens with special structure, a non-spherical lens, a spherical lens or array and a cylindrical lens or a combination of cylindrical lenses to reshape all the luminous points into parallel light beams having minimized angle, high power compression is carried out on semiconductor light beam along the direction of prolate axis by adopting a single prism, a combination of prisms or raster array, and the obtained light beam can be directly and effectively coupled to multimode fiber and high power doubly coated fiber, or used in an end pump laser, or the obtained light beam can be effectively coupled to multimode fiber and high power doubly coated fiber, or used in an end pump laser by passing through a plus lens. The invention is a novel light beam shaping structure of the semiconductor laser and has the advantages of larger spot diameter of the output beam, smaller divergence angle and further operating distance.

The invention relates to a bucket shape-to-square shape convertible frame transfer box and a carrier mobile phone monitoring-based Internet of Things system thereof. The bucket shape-to-square shape convertible frame transfer box is composed of an RFID ultra high frequency tag, a WiFi or Bluetooth short-range communication unit, a box body with a metal inner frame, and the like. The transfer box is characterized in that the transfer box can be shared; after goods are arranged in the transfer box, a carrier in the society transports the transfer box in a crowdsourcing mode; in order to reduce the cost and save the power of the transfer box, a WiFi or Bluetooth module communicates with the mobile phone of the carrier of the transfer box, and the mobile phone of the carrier communicates witha network platform and achieves communication base station positioning and tracking, and therefore, remote communication modules such as the NB-IoT can be eliminated; in workplaces such as an encasement workplace and a storage workplace, the WiFi or Bluetooth module communicates with the network platform; and in order to improve a space utilization rate, the transfer box is square-shaped during encasement, transfer and storage, and the transfer box is bucket-shaped during unloaded transport and unloaded storage. The transfer box and the carrier mobile phone monitoring-based Internet of Thingssystem thereof of the invention have a real-time IoT characteristic and belongs to the article conveying equipment, transport packaging product, e-commerce and logistics equipment field.

An apparatus and method for acquiring an image of a predetermined extract of a moving printed product employs at least one black-and-white camera with a two-dimensional electronic image sensor and one or more illumination devices suitable for pulse-like illumination. The illumination device has multiple light sources forming spectral groups that have different spectral compositions. The light sources are arranged in a pattern such that the light sources of each spectral group completely illuminate the area of observation of the camera. A control device switches the individual spectral groups of light sources on and off sequentially such that the area of observation of the camera is illuminated with a sequence of light pulses of different spectral compositions. During each light pulse, the predetermined extract on a printed product moves into the area of observation of the camera, and an image of extract is captured.

The invention discloses a THz clock synchronization frequency modification continuous wave lossless thickness measurement detection system, and aims at providing a terahertz thickness measurement imaging system that is simple in structure, stable, reliable, excellent in performance and capable of widely applied to multiple occasions, and can be used for performing lossless detection on special coating and structures in situ. The system is implemented via the technical scheme as follows: a clock module (1) generates two microwave drive signals synchronously inputting into a terahertz frequencymodification continuous wave transmission source (2) and a terahertz detector (3), to achieve synchronization of receiving and transmission clocks; and a polarized light path (4) performs polarizationon the terahertz signal, controls local oscillator modulation waveforms of the terahertz frequency modification continuous wave transmission source (2) and the terahertz detector (3), and thus the imaging radar with consistent terahertz frequency modification continuous wave receiving and transmission modulation waveforms and the ellipsometry frequency modulation continuous wave lossless detection thickness measurement system with inconsistent terahertz clock synchronization receiving and transmission modulation waveforms are achieved.

The invention discloses a prison indoor positioning system based on WiFi. The system is characterized in that a service end in a police service monitoring chamber and a client end in a prison are included; the service end comprises a Web server, a database server, a positioning server and a router, and the Web server, the database server, the positioning server and the router at the service end are connected through a local area network; the client end is used for monitoring and positioning mobile terminals of prisoners; the router at the service end and the mobile terminals of the client end are connected through a wireless WiFi network. According to the system, the WiFi network is used for positioning, limitations caused when GPS is applied in dense buildings or in rooms can be eliminated, the application industry and range of positioning service are widened, positioning precision is improved, deployment cost is lowered, the equipment utilization rate is improved, rescue ability for dealing with emergencies is improved, and the system plays an important role in prison monitoring and management.

The invention provides a production line supervision system, which mainly comprises a radio frequency identification (RFID) electronic label which is arranged on a product or a tray, an RFID reader and an information management terminal, wherein the RFID reader reads the information on the electronic label and then transmits the information to the information management terminal, and the RFID reader is a fixed reader which is installed on a production line node. The RFID supervision system also comprises an RFID antenna, wherein the RFID antenna is connected with the RFID reader, and the RFID reader is connected with the information management terminal. The RFID supervision system has the advantages that: the working distance is long, the precision is high, the information can be automatically and quickly collected and processed, and the environmental adaptability is good.

The invention discloses a jail locating node system based on a wireless sensor network. A wireless gateway is in wireless connection with locating nodes. A plurality of wireless routers and the locating nodes are adopted, and the wireless routers are in wireless connection with the locating nodes. Each locating node comprises an MCU processor, a storage device, a communication module, an acceleration speed sensor, a gravity sensor, a battery management unit, a loudspeaker, a microphone, a liquid crystal touch display screen and a camera, the storage devices, the communication modules, the acceleration speed sensors, the gravity sensors, the battery management units, the loudspeakers, the microphones, the liquid crystal touch display screens and the cameras are connected with the MCU processors, and the battery management units are connected with rechargeable batteries. According to the jail locating node system, the network locating and monitoring nodes based on the ZigBee communication technology are adopted, the advantages of being low in cost, low in power consumption, high in safety, long in work distance, rich in function and the like are achieved, and the good effect is obtained in jail monitoring activities.

The invention provides an oscillatory temperature sensor powered by RF (radio frequency) signals. The oscillatory temperature sensor comprises an antenna, an energy acquisition module and a sensing head. The energy acquisition module comprise a match circuit, a first diode and a power management circuit; the match circuit is connected with the first diode; the power management circuit comprises a DC / DC (direct current to direct current) boost chip and an energy storage capacitor, an input end of the DC / DC boost chip is connected with a cathode of the first diode, a load voltage output end of the DC / DC boost chip is connected with a live wire of the oscillatory temperature sensor, and an energy storage voltage output end of the DC / DC boost chip is connected with a ground wire of the oscillatory temperature sensor through the energy storage capacitor; the sensing head comprises a surface acoustic wave resonator and a triode, and the surface acoustic wave resonator and the triode are combined to form a surface acoustic wave oscillator. Return signals can be transmitted by higher power, and working distance of the sensor is increased while data transmission time of the sensor is prolonged; data of the sensor can be read remotely by a reader, so that convenience in use is achieved.

The invention provides an intelligent supervisory system applied to a flame-retarding conveying belt under a coal mine. The intelligent supervisory system applied to the flame-retarding conveying beltunder the coal mine mainly comprises an RFID electronic tag, an RFID reader, an RFID antenna and an information management terminal. The RFID electronic tag is arranged in the conveying belt product.The RFID antenna is connected with the RFID reader. The RFID reader is connected with the information management terminal. The RFID reader reads a signal on the electronic tag and then transmits thesignal to the information management terminal. The RFID-based supervisory system for the conveying belt has a series advantages of non-contact characteristic, long working distance, high precision, automatic and rapid information collection, good environment adaptability and the like, fills the blank of intelligent supervision of the conveying belt in use, can replace traditional manual input andcan achieve more timely and comprehensive input, and the use and maintenance operating efficiency of the coal mine is improved; and based on the advanced automatic recognition function, the intelligent supervisory system can easily complete tasks which are difficult to complete by workers in the prior art, and the product competitiveness is improved.

The invention provides a long-distance wireless transmission device with a controllable transmission range, which comprises a transmission transmitting module, a wireless transmission efficiency enhancing and covering layer, and a receiving module, wherein the transmitting module converts electric energy into an electromagnetic wave; the enhancing and covering layer effectively enhances coupling strength between the transmitting module and the receiving module through changing an electromagnetic wave near field distribution mode; and the receiving module receives the electromagnetic wave and converts the electromagnetic wave into the electric energy. The transmission transmitting module and the wireless transmission efficiency enhancing and covering layer can serve as infrastructures to be arranged along a traffic route below or near the road in a continuous, segmented or fixed point mode, and wireless transmission is provided for a long-distance static or dynamic object provided with the receiving module; and the device can also be used in a building, and wireless transmission is carried out on equipment in an effective range.

The invention discloses a quality control system and method in the motor manufacturing process. The method is characterized in that a plurality of data acquisition units I are arranged at the places of production nodes of motor parts and are used for collecting production information and detection information of each motor part, sending the production information and detection information of each motor part to a data storage control module and forming special two-dimensional code information of each motor part in the data storage control module; a plurality of data acquisition units II are arranged at the places of assembly nodes of the motor parts respectively and are used for collecting production information and detection information of each motor part before assembly; and the data storage control module is also used for receiving unqualified motor part information sent by the data acquisition units II in the assembly process of the motor parts, and storing marks of the unqualified information to the two-dimensional code information corresponding to the motor part to realize real-time update of the two-dimensional code information. The quality of the motor in the motor manufacturing process is subjected to dual control detection, thereby enhancing quality assurance of the motor.

The invention relates to a stereoscopic imaging device and system based on the compressed sensing theory, and belongs to the technical field of compressed sensing imaging. The stereoscopic imaging device based on the compressed sensing theory provided by the present invention comprises a DMD module and at least two imaging subsystems. The DMD module includes at least two DMD modulation regions. The imaging subsystems correspond to the DMD modulation regions one to one. Each imaging subsystem includes an image capturing lens, a relay lens and a detector which are successively arranged along anoptical path. Each DMD modulation region is disposed on an optical path between the corresponding image capturing lens and the relay lens. According to the principle of binocular vision stereoscopic imaging, the stereoscopic imaging device acquires the image information at a target position by using the at least two imaging subsystems, can obtain the depth information of the target, acquires a three-dimensional geometric image, performs modulation by using the DMD module, combines the compressed sensing technology with the stereoscopic imaging technology, and increases the imaging resolution.

An RFID antenna system belongs to the technical filed of an antenna system. The invention especially relates to an RFID antenna system and provides an RFID antenna system with a low cost and a long transmission distance. The RFID antenna system comprises a control end, a reader-writer, an antenna and an electronic label. The main points of the structure are that the control end, the reader-writer and the antenna are successively connected.

The invention provides a miniaturized area array Gm-APD laser radar device with single photon detection sensitivity, and belongs to the technical field of laser. The laser radar device comprises a ball nacelle, a two-axis servo frame, a gyroscope, a motor, a grating coded disc, a control processor, an information processor, a short-wave infrared laser, a Gm-APD detector, a receiving optical system, an optical fiber coupler, a transmitting optical system, a secondary power supply and an upper computer. The two-axis servo frame, the gyroscope, the motor, the grating coded disc, the control processor, the information processor, the short-wave infrared laser, the Gm-APD detector, the receiving optical system, the optical fiber coupler, the transmitting optical system and the secondary power supply are arranged in the spherical pod. The laser radar device has the performances of high-precision tracking and pointing, image stabilization and the like.

The invention relates to a depth vision vehicle-mounted monitoring device which is characterized by comprising a 3D image acquisition assembly, an image processing module, a positioning module, an audio module, a communication module, a power supply module and an outer cover shell, wherein the 3D image acquisition assembly is used for acquiring a three-dimensional measurement image and depth information of a shooting object; the image processing module is used for processing the image and depth information of the measured object acquired by the 3D image acquisition assembly; the audio module is used for inputting and outputting voice; the positioning module is used for acquiring geographical position information of a vehicle; the communication module is used for receiving and sending data;the power supply module is used for supplying power to other modules in the device; the 3D image acquisition assembly, the image processing module, the audio module, the positioning module, the communication module and the power supply module are installed in the outer cover shell. Through the 3D structured light and TOF technology, advantages and disadvantages are made up, and the method has theadvantages of accurate identification, real-time identification, stability and high efficiency.

The invention relates to a double ultrahigh-frequency RFID label transfer box with changeable box types and a quickly-dismounted electronic lock. The double ultrahigh-frequency RFID label transfer boxcomprises a bottom square plate; a non-woven material buffering piece is placed in a cavity formed in the middle of the bottom square plate, the upper surface and the side faces of the bottom squareplate are covered with membrane cloths, the bottom square plate is connected with a bottom frame, left and right side frames are hinged to the positions, on the left side and the right side, on the bottom frame, and front and rear side frames are hinged to the positions, on the front side and the rear side, on the bottom frame; left and right side outer layers are arranged on the outer sides of the left and right side frames, and left and right side inner layers are arranged on the inner sides of the left and right side frames; a front box cover frame and a rear box cover frame are hinged to the top edges of the two front and rear side frames correspondingly; and the double ultrahigh-frequency RFID label transfer box further comprises two ultrahigh-frequency RFID labels which are located on the front and rear side outer layers and the left and right side outer layers correspondingly and are perpendicular to each other, and the adjacent left and right side frames and front and rear sideframes are movably connected through connecting pieces to complete switching of the transfer box between the square box type and the trapezoidal box type. The reliability of the transfer box is enhanced, and cargo safety is improved.

The invention discloses an ultra-wideband antenna structure and electronic equipment, the ultra-wideband antenna structure comprises a PCB and a shielding cover, the shielding cover is arranged on thePCB, and a slot antenna is formed on the surface of the shielding cover. The ultra-wideband antenna is designed and realized on the shielding cover, an antenna does not need to be additionally configured, and the sizes of an ultra-wideband system and a module can be effectively reduced, so that the size of a final product is reduced; the antenna is in the form of the slot antenna, the metal ground reflection characteristic of the ultra-wideband module PCB is utilized, so that the antenna forms a directional radiation characteristic, the part, facing a human body, of radiation energy can be effectively reduced, meanwhile, the energy of the antenna is more concentrated due to the directional radiation characteristic, and a farther working distance can be obtained in a working coverage area.

The invention discloses a dielectric-loaded miniaturized ultra-wideband antenna structure and electronic equipment, and the structure comprises a PCB and a shielding case, the shielding case is disposed on the PCB, a slot antenna is formed on the surface of the shielding case, the slot antenna comprises a slot, and a dielectric material is loaded in the slot. The ultra-wideband antenna is designedand realized on the shielding cover, so that an antenna does not need to be additionally configured, and the sizes of an ultra-wideband system and a module can be effectively reduced; the antenna isin the form of the slot antenna, and the metal ground reflection characteristic of the ultra-wideband module PCB is utilized, so that the antenna forms a directional radiation characteristic, and thepart, facing a human body, of radiation energy can be effectively reduced; according to the slot antenna, the dielectric material is loaded in the slot antenna, the physical size of the slot antenna during working can be reduced by utilizing the effect that the wavelength of electromagnetic waves in a medium is shortened, and correspondingly, the antenna radiation performance of the same frequencyband can be realized on a smaller shielding cover, so that the sizes of an ultra-wideband system and an ultra-wideband module are further reduced.

The invention belongs to the field of antenna technology and wireless communication, and discloses a wireless inclination sensor based on radio frequency identification, which is composed of a substrate, two antenna main bodies, a ball type inclination switch and two RFID chips, the single-side inclination angle of the ball type inclination switch reaches a critical value, the two pins on the side are in a conduction state, the antenna main body structures are communicated, the electronic product code of the RFID chip can be read by the RFID reader. The inclination condition of the corresponding sensor and whether the wheelchair rolls over or not can be judged according to the condition that the code is read by the RFID reader. The wireless inclination sensor based on radio frequency identification not only can monitor rollover, but also has the advantages of being simple in structure, low in cost, convenient to use, long in working time, long in working distance, high in adaptability and the like, thereby having wide application value and market potential, and the method is expected to assist in constructing an intelligent health monitoring and protecting system for community old-age care.

The invention discloses a flash lamp based on a semiconductor laser, which comprises a semiconductor laser, a sapphire fluorescent plate, a reflector and a Fresnel lens, wherein the sapphire fluorescent plate is arranged in front of the semiconductor laser and used for converting blue laser emitted by the semiconductor laser into white light; and the reflector is arranged in front of the sapphirefluorescent plate and used for reflecting the white light to the Fresnel lens and scattering the white light. The flash lamp has the advantages of high light effects, high power, long service life, energy conservation, good color rendering, long range and the like, and can realize larger luminous flux and longer working distance.

The invention discloses a remote control device for a motor vehicle. The remote control device comprises a control host installed on the motor vehicle and a remote controller capable of conducting press type control or intelligent control. The control host comprises a host shell, a control circuit board and a receiving antenna. The control circuit board is provided with a receiving circuit connected with the receiving antenna and a control chip. The remote controller comprises a remote control shell, a control panel and a remote control circuit board. The remote control circuit board is provided with a storage battery, a CPU chip, a press type control circuit capable of controlling a vehicle door to be opened and closed through press type operation conducted by a human hand on the remote controller, and an intelligent control circuit capable of automatically opening the door or automatically locking the vehicle door when the remote controller enters or leaves the detection range of the control host. The press type control circuit is provided with a press type high-frequency transmission circuit which is connected with the CPU chip and can send out a high-frequency instruction code in the press type control process. The intelligent control circuit is provided with an intelligent high-frequency transmission circuit which is connected with the CPU chip and can send out a high-frequency instruction code in the intelligent control process.