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2001 results about "Laser transmitter" patented technology

Pipeline all-position multi-layer multi-channel TIG welding bead morphology measuring device and method

The invention discloses a pipeline all-position multi-layer multi-channel TIG welding bead morphology measuring device and method, and relates to the technical field of intelligent welding. A molten pool image collecting module is used for collecting morphology information of a molten pool, and the light emitting end of a laser transmitter is used for facing a welding bead; the active and passive vision module is used for collecting an image of light emitted by the laser emitter projected on a weld pool groove and identifying a weld bead corner opening position and a weld bead width, and the active and passive vision module and the weld pool image collecting module are both electrically connected with the control module; the control module can fuse image features collected by the active and passive vision module and the molten pool image collection module, the axes of the molten pool image collection module, the welding module and the active and passive vision module are located in the same plane, and the molten pool image collection module and the active and passive vision module are located on the two sides of the welding module respectively. According to the method, manual participation in the welding process can be reduced, the welding automation degree is improved, and meanwhile, the welding bead morphology measurement accuracy is improved.
Owner:TIANJIN UNIV

Laser centering device for coupler and using method of laser centering device

The invention relates to the technical field of industrial laser precision measurement, in particular to a laser centering device for a coupler and a using method of the laser centering device for the coupler. Light spot displacement signals and environment vibration signals are synchronously collected through a laser transmitter and an optical sensor array, and a frequency domain feature decoupling module is adopted to separate a shafting displacement component and an interference component; the time domain correlation verification module is used for calculating signal time sequence correlation and generating a deviation vector, and finally the adaptive compensation decision module is used for analyzing the deviation vector and outputting an adjustment instruction. According to the invention, effective separation of real misalignment and transient noise in a dynamic environment is realized, the technical problem of measurement misalignment of an existing laser centering device in a complex industrial environment is solved, and the coupling installation precision and the equipment operation stability are improved.
Owner:HUANENG WEIHAI POWER GENERATION CO LTD

Point light source electron accelerator

The invention discloses a point light source electron accelerator which comprises a sealing box body, a cathode, a laser emitter, a reflecting cover, a grid plate and a mounting plate, the mounting plate is erected in the sealing box body, a mounting hole is formed in the mounting plate, the cathode is mounted in the mounting hole, and the laser emitter is arranged in the sealing box body. The reflecting cover is arranged at the top of the mounting hole; the reflecting cover is a semi-spherical surface, a laser through hole is formed in the top of the semi-spherical surface, and the laser through hole is coaxial with the cathode; the transmitting end of the laser transmitter is aligned with the cathode; the grid plate is mounted below the mounting plate and is aligned with the mounting holes; and an electron outlet is formed below the grid plate. The invention provides a point light source electron accelerator, and the point light source electron accelerator provides a light and miniaturized electron accelerator design, so that the application field of the accelerator is wider.
Owner:TAIZHOU ZAIFU INTELLIGENT EQUIPMENT MANUFACTURING CO LTD

Online precision calibration method for laser line module in high and low temperature environment

The invention relates to the technical field of optical measurement and metering equipment, in particular to an on-line precision calibration method for a laser line module in a high-low temperature environment, which comprises the following steps: acquiring horizontal and vertical offsets of a projection light spot of the laser line module, and collecting the temperature of the position of a laser transmitter; respectively calculating a horizontal offset interference degree and a vertical offset interference degree at each acquisition moment, and further obtaining a horizontal interference ratio and a vertical interference ratio; according to the change trend of the horizontal offset interference degree and the vertical offset interference degree within the preset duration before each acquisition moment, the horizontal and vertical interference variation of each acquisition moment is obtained, and then the compensation regulation factors of the horizontal offset and the vertical offset of each acquisition moment are obtained, and the horizontal offset and the vertical offset are compensated. And compensation correction values of the horizontal offset and the vertical offset are obtained, so that the projection precision of the laser line module is calibrated. According to the invention, the precision of projection calibration of the laser line module can be improved.
Owner:XIAN TIANHE LASER INSTR CO LTD

Monitoring method for running state of laser transmitter

The invention relates to the technical field of data processing, in particular to a method for monitoring the running state of a laser transmitter, and the method comprises the steps: obtaining the multi-dimensional parameters of the laser transmitter, determining the instantaneous abnormal index of the laser transmitter at the current moment according to the variable quantities and change rates of the voltage and current of the laser transmitter at the current moment, and determining the running state of the laser transmitter according to the instantaneous abnormal index. Determining the sum of the relative decrease degree of the electro-optical conversion efficiency of the laser transmitter at the current moment and the relative increase degree of the waste heat as a performance degradation index of the laser transmitter at the current moment; and determining the product of the performance degradation index of the laser transmitter and the instantaneous abnormal index of the laser transmitter at the current moment as a health degree index of the laser transmitter at the current moment, and monitoring the running state of the laser transmitter in real time according to a comparison result of the health degree index and a preset health degree index threshold value. According to the method, the accuracy of monitoring the running state of the laser transmitter is improved.
Owner:LOGAN LASER TECH (WUHAN) CO LTD

Ground flatness laser detection device for industrial building construction

The device comprises a box body and a measuring assembly arranged in the box body, the measuring assembly comprises a laser emitting unit, a lens unit, a focal length adjusting unit and a height adjusting unit, the height adjusting unit is arranged on the upper side in the box body, and the focal length adjusting unit is arranged at the bottom of the height adjusting unit. The laser emitting unit is arranged at the bottom of the focal length adjusting unit, and the lens unit is arranged at the bottom of the focal length adjusting unit and located on one side of the laser emitting unit. Through the collaborative design of the convex lens and the laser emission unit, the optical path reversibility principle of the convex lens is utilized, and dependence on a small-size and low-emission-port-height special-specification laser emitter is not needed. Even if a laser transmitter with a conventional size is adopted, refracted laser can be infinitely close to the ground, and tiny protrusions can be accurately recognized and measured.
Owner:CHINA CONSTR FIFTH ENG DIV CORP LTD

Flange precision detection platform

The invention relates to the technical field of flange planeness measurement, and provides a flange precision detection platform, which comprises a laser transmitter and a laser receiver, and comprises a moving seat, a laser transmitter, a laser receiver, a laser transmitter and a laser receiver, the sliding block is slidably arranged on the movable base and gets close to or away from the axis of the flange after sliding. The rotating frame is rotationally arranged on the sliding block; the clamping seat is arranged on the rotating frame, rotates along with the rotating frame, and sleeves the laser receiver in a clamping manner; the mounting seat is rotationally arranged at the upper end of the laser transmitter; the winder is arranged on the mounting seat, a stay wire is wound on the winder, the end part of the stay wire is connected with the rotating frame, and the winder provides pulling force for the rotating frame through the stay wire, so that the receiving end of the laser receiver is opposite to the laser transmitter. According to the technical scheme, the problem that the detection efficiency is affected due to the fact that the laser receiver and the laser transmitter cannot be automatically opposite in the existing flatness measurement technology is solved.
Owner:QINGDAO HUA STRONG ENERGY TECH CO LTD

Depth and color fused true color three-dimensional point cloud acquisition method and system

The invention discloses a depth and color fused true color three-dimensional point cloud acquisition method and system, and the method comprises the steps: setting a plurality of lasers to emit specific spectrum laser, enabling the specific spectrum laser to be reflected by the surface of an object, and filtering the specific spectrum laser through a narrow-band optical filter of a corresponding wave band, thereby enabling a corresponding sensor to only receive a single-spectrum laser line emitted by a corresponding laser emitter. A laser center point position and an intensity response value are extracted through a sub-pixel-level laser line refinement technology; calibrating the unified measurement coordinate system through sensor pose calibration; according to the light transmittance of an optical filter, spectral response characteristics of an image sensor and the like, correcting and compensating the intensity response value, calculating a compensation factor to obtain a color value of a measurement point, fusing a three-dimensional coordinate with corrected color information, outputting true color point cloud data, and presenting depth and color information of an object at the same time. The three-dimensional information and the color information of the object are synchronously obtained, so that the measurement data contain rich spectral characteristics.
Owner:WUHAN HANNING TECH

Following body PIV boundary layer flow field test system and test method based on electrolytic hydrogen bubbles

The invention discloses a follow-up PIV boundary layer flow field test system and test method based on electrolytic hydrogen bubbles. The follow-up PIV boundary layer flow field test system comprises an integrated optical measurement module and a tracer particle generation module, the optical measurement module is arranged in the UUV and comprises a laser transmitter assembly, a sapphire prism and two imaging cameras which are symmetrically arranged, and laser sheet light forms a sheet light area on the outer surface of the UUV after being refracted by the sapphire prism; the tracer particle generation module comprises a cathode, an anode and a power supply unit, the cathode is a platinum wire array composed of a plurality of platinum wires arranged in the axial direction of the UUV, and the platinum wires are located at different heights away from the wall face of the UUV; the power supply unit selectively electrifies the platinum wire, independently adjusts the voltage, controls the number and frequency of generated hydrogen bubbles, and achieves the synchronous measurement of flow field information at different thickness positions of a boundary layer. According to the invention, boundary layer flow field in-situ follow-up measurement and synchronous fine measurement of different thickness positions under the condition of not changing the UUV shape are realized, and the device has the advantages of high integration level, small flow field disturbance, high measurement efficiency and the like.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Automatic strip jointing and continuous conveying device for soft cotton towel bag making machine

The invention relates to the technical field of packaging machines, in particular to an automatic strip jointing and continuous conveying device for a soft cotton towel bag making machine, which comprises a deviation correcting device and a strip, a first vertical plate is arranged at the rear end of the upper surface of the base, at least one material roll feeding device is arranged at the right end of the outer side face of the base, a baffle is installed at the position, close to the material roll feeding device, of the outer side face of the base, and a laser transmitter and a laser receiver are installed on the front side face and the upper surface of the baffle respectively. According to the automatic strip jointing and continuous conveying device for the soft cotton towel bag making machine, through the collaborative design of the electric heating laminating device and the material roll feeding device, automatic hot melting bonding of the ends of new and old material rolls is achieved; the first electric control telescopic rod drives the rectangular frame to press downwards, hot melting bonding is carried out on the end of the strip through electric heating of the nickel-chromium alloy strip, accurate alignment and press fit are completed in combination with the fifth rollers and the pressing plate which are symmetrically distributed, and manual repeated strip threading is not needed.
Owner:XIAMEN YAOJIAN PAPER PROD CO LTD

Metal size detection equipment

The invention discloses metal size detection equipment, and relates to the technical field of length detection.Sliding tables transversely slide on the left side and the right side of a base, a vertically-arranged vertical frame is slidably inserted into each sliding table, and extension rods which are fixed to the top ends of the vertical frames on the left side and the right side and located on the same straight line are matched with extension of the extension rods; the measuring head at the end of the extension rod can accurately extend into the concave part of the metal workpiece, the distance between the vertical frames on the left side and the right side is constant, the laser transmitter and the laser receiver which are symmetrically arranged on the left side and the right side are matched for detection, and the size of the concave position can be rapidly and accurately measured and detected after simple calculation. The detection efficiency and the detection accuracy can be improved, and the application range of the device can be effectively expanded.
Owner:WUXI JINHUANGSHENG PRECISION MASCH CO LTD

Auxiliary electronic control equipment for traffic assistant management

The utility model relates to the technical field of traffic auxiliary management, in particular to electronic control equipment for assisting traffic assistant management, which comprises a mounting seat, a fixing frame, a first mounting frame, a fixing bolt, a first laser transmitter and the like. The number of the installation seats is two, the two installation seats are both provided with fixing frames, the installation seats are rotatably provided with first installation frames, the first installation frames are fixed to the installation seats through fixing bolts, the first installation frames are provided with first laser emitters, the installation seats are provided with second installation frames, and the second installation frames are provided with second laser emitters. Through the dual-mode design that the first laser transmitter projects a green light band when the green light is green and the second laser transmitter projects a red light band when the red light is red, visual guidance with high identification degree is provided for pedestrians, the green light band clearly marks a safe passing area, and the red light band clearly defines a passing forbidding boundary.
Owner:GUANGZHOU HUAXIA VOCATIONAL COLLEGE

Sediment erodibility testing apparatus and method based on binocular vision measurement technology

A sediment erodibility testing apparatus and method based on binocular vision measurement technology. The testing apparatus comprises: a pipeline system, comprising a water storage tank (1), a water inlet pipeline (5), a transparent horizontal pipeline (8) and a water outlet pipeline (16) which are connected in sequence and form a circulation loop; a flow velocity adjustment system, arranged on the pipeline system and used for adjusting water flow velocity and internal pipeline pressure intensity; a sample pushing system, comprising a sample cylinder (21) used for containing a sediment sample (22) to be tested, and a piston (20) baseplate mounted in the sample cylinder (21) and capable of moving up and down, wherein an upper opening of the sample cylinder (21) is connected to the lower surface of the transparent horizontal pipeline (8); and a binocular vision measurement system, comprising a binocular camera (13) located directly above the sample cylinder (21), and a laser emitter (12) located beside the binocular camera (13) and used for projecting speckles onto the surface of a soil sample to be tested.
Owner:SOUTHEAST UNIV

Auxiliary positioning device for mounting and welding steel structure

The invention discloses an auxiliary positioning device for mounting and welding a steel structure, relates to the technical field of steel structure welding, and aims to solve the problems of deviation and low accuracy during positioning of the device. According to the technical scheme, the device is characterized in that a laser ranging module is integrated on the outer side of a clamping mechanism and comprises at least four sets of laser emitters distributed in a spatial orthogonal mode, the four sets of laser emitters form a spatial positioning matrix, the deflection angle of a component is calculated through a triangulation method, and three-dimensional space coordinates of the component and a target installation point are collected in real time; and an industrial PLC and a welding deformation prediction algorithm module are arranged in the controller, and the controller is used for receiving the three-dimensional coordinate data of the laser ranging module. The controller generates the pre-compensation amount through the welding deformation prediction algorithm module, drives the hydraulic clamping jaw to adjust the pose through PID control according to laser ranging data, monitors the clamping pressure, the positioning precision and other parameters in real time, triggers an alarm and protection mechanism when the parameters are out of tolerance, and ensures the accuracy and safety of the welding process.
Owner:ZHEJIANG HUAWEI CONSTRUCTION CO LTD

Handheld device for detecting weld defects and a method thereof

Provided is a handheld device and a method for detecting weld defects on a weld surface. The handheld device projects a thin beam laser light on the weld surface using a laser emitter. A processor receives the projected thin beam laser light from a laser receiving sensor, which indicates captured contours of the weld surface. The captured contours are processed to filter laser lines and extract contours. The extracted contours are utilized to classify a type of weld surface such as, surface joints, butt joints, corner joints, and tee joints. The processor, upon classifying, automatically adjusts angle and position of the laser light to be projected on the weld surface and detects deviation patterns by employing an ensemble of a laser line extraction process and a pixel width measurement process. The processor determines the detected deviation patterns as one or more defects on the weld surface that is being inspected.
Owner:LTIMINDTREE LTD

Full-duplex signal transmission device based on free space optical communication

The invention relates to the field of optical communication, and provides a free space optical communication-based full-duplex signal transmission device, which comprises a rotatable first device and a rotatable second device, the rotation axes of the first device and the second device coincide; when the first device and / or the second device rotate around the rotation axis, an optical signal transmitted by the first laser transmitter is always received by the first laser receiver, so that the intensity of light received by the first laser receiver is not changed during rotation; and when the first device and / or the second device rotate around the rotation axis, the optical signal transmitted by the second laser transmitter is received by one second laser receiver or at least two adjacent second laser receivers. According to the invention, high-speed full-duplex signal transmission in a rotation state can be realized, transmission rates such as 10Gbps and 25Gbps are supported, the sizes of the first device and the second device are as small as several millimeters, the size is small, and the weight is light.
Owner:YAOXIN ELECTRONICS (ZHEJIANG) CO LTD

Pre-warning system equipment for pedestrian crossing zebra crossing

The invention belongs to the technical field of traffic safety pre-warning, and provides a pedestrian zebra crossing pre-warning system device which comprises a mounting stand column, a monitoring assembly and a pre-warning assembly, a connecting base is arranged at the top of the front side of the mounting stand column, the monitoring assembly is arranged on the connecting base, and the monitoring assembly comprises an AI camera, a laser radar and a far infrared sensor. The early warning assembly comprises an electronic warning board, a laser transmitter and a laser spotlight; by comprehensively using various sensors such as the AI camera, the infrared sensor and the laser radar, pedestrians can be monitored and recognized from different angles and different modes, the accuracy of pedestrian recognition is improved, and the method is particularly suitable for pedestrian detection under complex weather and illumination conditions and has a wide application prospect. Through the synergistic effect of the laser spotlight, the laser curtain wall, the electronic warning board and the warning sound, early warning is performed on drivers and pedestrians from multiple aspects of visual sense and auditory sense, the early warning effect is enhanced, and the safety of the pedestrians crossing the road is improved.
Owner:ZHUZHOU ZHONGMEI ELECTRONIC TECH CO LTD

Non-contact multichannel photoelectric device slip ring

The invention discloses a non-contact multi-channel photoelectric device slip ring, and relates to the technical field of slip rings, the non-contact multi-channel photoelectric device slip ring comprises a slip ring stator and a slip ring rotor which are not in contact with each other, and through the specific design of a multi-channel photoelectric device, the multi-channel photoelectric device is set as an outer ring channel and an inner ring channel; the distance between the slip ring stator and the slip ring rotor is determined according to the included angle formed by the light of the laser transmitter, so that the laser receiver can stably receive laser signals, and the inner ring passage and the outer ring passage can be ensured not to interfere with each other; the slip ring stator and the slip ring rotor are not in contact, so that the service life of the slip ring can be prolonged, transmission signal damage caused by abrasion is avoided, and the stability of signal transmission is ensured; the slip ring rotor and the slip ring stator are completely identical in overall structure, so that the production process is simplified, and batch production is facilitated.
Owner:ANHUI LANXUAN PHOTOELECTRIC TECH CO LTD

3-dimensional imaging lidar system

The present invention relates to a lidar system including: laser transmitter and receiver systems, the laser transmitter system including: a wavelength-tunable seed laser which emits pulses at selected wavelength points, and switches between wavelengths within a switching time of <200 ns; a fiber amplifier which amplifies the laser pulses up to 200 kW to a transmitter grating; and a transmitter telescope including primary and secondary mirrors. The laser beam is directed from the transmitter grating to the secondary then primary mirrors, and the first transmitter grating is imaged on the primary mirror to minimize laser beam wander thereon. The transmitter grating diffracts and steers the laser beam by wavelength to a surface, to an arbitrary subset of <2000 resolvable footprints along a cross-track direction at a beam pointing angle switching time of <200 ns, such that footprints illuminated by the laser beam on the surface are imaged in 3D.
Owner:UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR NAT AERONAUTICS & SPACE ADMINISTRATION

Nuclear magnetic resonance device based on sapphire window and coal seam free gas amount correction method

The invention discloses a sapphire window-based nuclear magnetic resonance device and a coal seam free gas volume correction method, the sapphire window-based nuclear magnetic resonance device comprises a computer, a gas cylinder assembly, a nuclear magnetic bearing platform, a coal sample holder, a stable displacement pump and a laser emitter, the gas cylinder assembly is connected with a left end inlet of the coal sample holder, and the coal sample holder is arranged on the nuclear magnetic bearing platform; a sapphire window is arranged on the coal sample holder, laser emitted by the laser emitter faces the sapphire window to observe a cylindrical coal sample in the coal sample holder, an outlet at the right end of the coal sample holder is connected with a test pipeline, and the coal sample holder is connected with a confining pressure control pipeline. Advanced technologies such as nuclear magnetic resonance and laser scanning are applied to the free gas content simulation experiment of the coal bed gas reservoir, and the tested data are more accurate. The device can also be used for permeability testing, methane adsorption experiments, displacement experiments and the like, test results are used for evaluating distribution characteristics of free gas in geological media such as coal seams and shale, and theoretical data support is provided for energy development in China.
Owner:XINJIANG UNIVERSITY

Rapid belt tearing detection and early warning device and method based on artificial intelligence

The invention provides a belt tearing rapid detection and early warning device and method based on artificial intelligence, and relates to the technical field of equipment detection. According to the device provided by the invention, a monitoring unit is arranged at a blanking port, and a high-speed CCD (Charge Coupled Device) camera mounted at a 45-degree elevation angle works cooperatively with a laser transmitter to capture a line laser image at the bottom of a belt in real time; the core technology of the rapid detection and early warning method comprises the following steps: 1) an improved Sobel enhancement operator is used for inhibiting dust and water stain interference while keeping a real edge; 2) performing multi-scale LBP feature analysis, and accurately extracting crack textures in combination with dynamic threshold segmentation; the method comprises the following steps of (1) building a deformation index DI model to realize grading early warning, (2) building a deformation index DI model to realize grading early warning, (3) capturing space-time continuity through a 3D convolution kernel and realizing longitudinal crack detection in cooperation with the curvature quantification model, (3) building a distortion index DI model to realize grading early warning, (4) iron ore field verification shows that the transverse crack detection rate and the longitudinal crack early warning accuracy are both higher than those in the prior art, the false alarm rate in a dust environment is as high as 7%, and material leakage and safety accidents are effectively avoided.
Owner:CICHUAN KAIWU INFORMATION TECH CO LTD

Communication quality improvement method and device for satellite laser link, and storage medium

The invention discloses a communication quality improving method and device for a satellite laser link and a storage medium, and the method comprises the steps: determining a receiving power deviation value according to receiving power and preset reference receiving power; determining a PID control item for PID control based on the received power deviation value; based on the received power deviation value, determining an input characteristic corresponding to each statistical period; according to the trajectory data corresponding to each statistical time period, determining update parameters for updating a preset weight information determination model, and updating the weight information determination model by using the update parameters; inputting the input features into the updated weight information determination model, and outputting weight information corresponding to the PID control item by using the weight information determination model; and determining a power control signal based on the PID control item and the weight information, and sending the power control signal to the laser transmitter. Therefore, the technical effect that the satellite can keep stable communication quality in a complex space environment is achieved.
Owner:YINHE HANGTIAN (XIAN) TECHNOLOGY CO LTD

3D digital asphalt paving system and paving quality monitoring method

The invention discloses a 3D digital asphalt paving system and a paving quality monitoring method. The 3D digital asphalt paving system comprises an asphalt paving machine and a 3D paving control system, the 3D paving control system comprises a three-dimensional positioning system, a signal acquisition system and a vehicle-mounted control system; the three-dimensional positioning system comprises a data control system, a GPS base station, a GPS moving station, a laser receiver and a laser transmitter. The signal acquisition system comprises a vibration sensor mounted on the screed, a data line connected with the vibration sensor, a data memory and a signal processing module; the vehicle-mounted control system comprises a vehicle-mounted analyzer, a three-dimensional quality parameter processing module, a quality parameter calculation module, a slope sensor and a handheld controller; the output end of the data control system and the output end of the quality parameter calculation module are connected to the three-dimensional quality parameter processing module, and the three-dimensional quality parameter processing module and the handheld controller are both connected with the vehicle-mounted analyzer. The problems that the construction efficiency is low, the influence of human factors is large, and paving quality control lags behind are solved.
Owner:CHANGAN UNIV

Dust concentration real-time monitoring device

The utility model discloses a dust concentration real-time monitoring device, which comprises a device main body and a device frame clamped on one side of the device main body, the upper half part and the lower half part of the device frame are respectively and rotatably provided with a first wind-up roll and a second wind-up roll, and transparent films are wound on the first wind-up roll and the second wind-up roll. The first winding roller and the second winding roller are respectively used for releasing and recycling the transparent film; according to the device, a worker starts a driving device connected with the device, so that the first winding roller rotates, a transparent film wound by the first winding roller is released, and meanwhile, a driving device connected with the second winding roller is started, so that the second winding roller recycles the transparent film with attached dust; the clean transparent film released by the first winding roller is located in front of the laser transmitter, and the situation that the transparent film attached with much dust is located in front of the laser transmitter, and consequently the dust concentration detected by the laser transmitter generates errors is avoided.
Owner:GANSU HONGBO ENG TECH CO LTD

Multi-point displacement transmission-type laser monitoring system without stable observation point structure and data processing method of multi-point displacement transmission-type laser monitoring system

The invention provides a multi-point displacement transmission-type laser monitoring system for a structure without stable observation points and a data processing method of the multi-point displacement transmission-type laser monitoring system. The system is mainly composed of a bidirectional laser transmission sensing unit, a laser transmitter and a synchronous control and data processing module. All the bidirectional laser transmission sensing units are arranged in a straight line, laser emitters are arranged at the two ends of each bidirectional laser transmission sensing unit, and emitted laser beams penetrate through all the bidirectional laser transmission sensing units. The bidirectional laser transmission sensing unit is internally provided with a semi-transparent / semi-reflective mirror window, a diffuse reflection target and a camera. The semi-transparent / semi-reflective mirror window reflects an incident laser beam to the diffuse reflection target to form a light spot, and the camera records and identifies the movement displacement of the light spot. In combination with the data processing method provided by the invention, accurate multi-point displacement monitoring of the to-be-measured structure can be realized under the condition of no stable observation point. The system is suitable for construction period deformation monitoring or engineering life cycle structure health monitoring of large civil engineering structures such as bridges, tunnels and high-rise buildings.
Owner:HARBIN INST OF TECH

Multi-mode control method for voice interaction and gesture recognition of atmosphere lamp

The invention discloses a multi-mode control method for voice interaction and gesture recognition of an atmosphere lamp, and belongs to the field of intelligent control. The method comprises the following steps: S1, constructing a multi-mode sensing module, and arranging a bidirectional linear array microphone, a dual-lens infrared depth camera and a space calibration laser transmitter; s2, extracting voice features by adopting an extended spectrogram domain attention network, and generating a first semantic vector; s3, dynamic attitude features are extracted through the time-airspace sparse convolutional network; s4, performing modal alignment and cooperative coding on the two semantic vectors based on a bidirectional gating fusion mechanism, generating a joint interaction instruction vector, and solving modal conflicts by a time sequence synchronization and confidence regulation strategy; s5, inputting the vector into a multi-task intention classifier, analyzing a user intention and outputting a unique atmosphere lamp control code; and S6, transmitting the control code to a driving unit to realize light control. The beneficial effects are that voice and gesture fusion control is realized, and atmosphere lamp interaction intelligence and response precision are improved.
Owner:NINGBO ZHONGJUN SHANGYUAN AUTO PARTS

Steel strip sheet laser cutting machine

The invention relates to the technical field of laser cutting machines, in particular to a steel strip sheet laser cutting machine which comprises a base plate, a workbench and a laser transmitter and further comprises a supporting plate, a U-shaped frame, a vacuum pump, a first vacuum assembly, a second vacuum assembly and a blowing assembly. The U-shaped frame is arranged on one side of the workbench, the laser transmitter is arranged above the supporting plate and connected with the U-shaped frame, the vacuum pump is fixedly arranged on the U-shaped frame, and the first vacuum assembly, the second vacuum assembly and the purging assembly are connected through the vacuum pump and all arranged on the U-shaped frame. The input end of the first vacuum assembly and the output end of the laser transmitter are coaxially arranged. Through the arrangement of the vacuum pump, the first vacuum assembly, the second vacuum assembly and the purging assembly, the cutting quality is guaranteed on the basis that melt is prevented from being solidified again on the edge of the bottom of a cutting hole.
Owner:JIANGSU MORNING ENVIRONMENTAL PROTECTION TECH CO LTD

Laser level with internal adjustable platform

A laser level emits one or more planar lasers that can be self-leveled via one or more internal leveling systems. The motors bias a platform to rotate the laser emitters to a targeted orientation, such as via the motors collectively rotating the laser emitters in response to instructions to rotate with respect to one or more axes.
Owner:MILWAUKEE ELECTRIC TOOL CORP

Server cabinet fault monitoring system based on big data

The invention particularly relates to a server cabinet fault monitoring system based on big data, and relates to the technical field of server cabinet fault monitoring. A data preprocessing and storage module; the core intelligent analysis and diagnosis module is configured to realize sensor fault identification based on preprocessed data and a big data model; and an alarm and visualization interaction module. According to the invention, temperature and light intensity correlation analysis and a multi-dimensional data cross validation mechanism break through the limitation of traditional single temperature threshold judgment; on one hand, temperature data are collected by combining a contact type sensor, a non-contact type sensor and a redundant sensor, parameters such as light intensity and attenuation rate are synchronously obtained through a laser transmitter and a photoelectric detector, a correlation model of temperature and light intensity is constructed, and real temperature abnormity and sensor faults can be accurately distinguished; and on the other hand, associated data such as sensor power supply voltage and communication signal strength are synchronously collected, and a basis is provided for fault traceability.
Owner:DONGGUAN THINKCOOL ELECTRONICS TECH CO LTD

Anti-unmanned aerial vehicle or unmanned aerial vehicle cluster device and method

The invention discloses an anti-unmanned aerial vehicle or unmanned aerial vehicle cluster device and method, and relates to the technical field of anti-unmanned aerial vehicles. The device comprises a radar detection module, a data processing unit, a control system, a pulse laser transmitter, a light beam control and focusing system, a cooling system and a power supply system. According to the device, large-energy pulse laser is integrated into a laser anti-unmanned aerial vehicle device, the pulse laser can release extremely high peak power in an extremely short time, a strong photo-thermal and light pressure effect is instantly generated, an unmanned aerial vehicle body is instantly punctured, the destroying time is greatly shortened, and the problem that the efficiency is low in an existing continuous laser anti-unmanned aerial vehicle technology is solved.
Owner:SHENGHONG (TAIZHOU) LASER TECH CO LTD