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644 results about "Laser projection" patented technology

Dynamic calibration type laser surface real-time detection method and system

The invention discloses a dynamic calibration type laser surface real-time detection method and system, and the method comprises the following steps: obtaining initial calibration parameters of a laser projection module and a high-speed imaging module through a standard calibration plate, building an initial measurement coordinate system through a camera calibration method, and building a dynamic calibration model; through a dynamic calibration mechanism, calibration parameters are updated in real time, and a sub-pixel-level laser light strip center coordinate extraction method is combined, so that the detection precision is effectively improved, and tiny surface defects can be detected; by responding to changes of environmental parameters such as vibration, temperature and illumination intensity in real time and automatically triggering a calibration process, it is ensured that a high-precision detection result can still be kept in a complex industrial environment; by adopting the mode of combining the standard calibration plate and the workpiece reference area, the calibration time is shortened, and for workpieces of different models, quick adaptation can be achieved through quick migration of pre-training model parameters and a federal learning mode, and the production efficiency is improved.
Owner:BEIJING BANGDA TECH CO LTD

Shield tail gap measurement method based on instance segmentation and laser projection error compensation

The invention discloses a shield tail gap measurement method based on instance segmentation and laser projection error compensation, and belongs to the technical field of shield construction automatic measurement. The method solves the problem that in the prior art, projection coordinate deviation is caused by shield type TBM mechanical vibration and laser thermal drift, and then shield tail gap measurement precision is affected. According to the technical scheme, the method comprises the steps that multiple sets of lasers are arranged in the circumferential direction of a shield tail to project fringes to segments; synchronously acquiring images through an industrial camera; respectively extracting a segment seam sub-pixel boundary and a laser stripe center line by using a double-branch instance segmentation network; performing real-time vibration and temperature drift compensation on the laser projection point based on a thermal-mechanical coupling error model; and finally, calculating a gap value and three-dimensional gradient distribution through point cloud registration. The method is mainly used for high-precision and real-time dynamic measurement of the gap between the shield tail and the duct piece in the tunneling process of the shield type TBM.
Owner:SINOHYDRO BUREAU 6 CO LTD

Panoramic three-dimensional scanning device and measuring method for inner wall of pipeline

The invention discloses a pipeline inner wall panoramic three-dimensional scanning device and a measuring method, and the device comprises a panoramic plane laser generator which comprises a point laser generator, an axicon, a laser focusing lens, a conical surface reflector and a transparent cylindrical support, and is used for transmitting a 360-degree panoramic plane laser beam to the inner wall of an object to be measured; according to the invention, single-exposure full-circumferential high-precision three-dimensional measurement is realized, and the device can synchronously obtain complete three-dimensional point cloud data of the circumference of the inner wall of the whole pipeline at the moment of single exposure through innovative combination of a panoramic annular imaging system and a panoramic planar laser projection technology; the method has the advantages that axial rotary scanning or multi-view data splicing required by a traditional method is avoided, measurement efficiency is improved, splicing accumulative errors are avoided, laser stripe image acquisition is complete and free of breakpoints, and completeness and accuracy of three-dimensional reconstruction data are guaranteed from the source.
Owner:ZHEJIANG UNIV +1

Acupuncture point accurate positioning device based on machine learning

The invention provides an acupuncture point accurate positioning device based on machine learning, and relates to the field of artificial intelligence. Comprising a multi-modal data acquisition module, a data preprocessing module, a machine learning processing module, a dynamic adaptive calibration module, a gender specificity optimization module, a laser projection module and an interaction and control module, wherein the multi-modal data acquisition module is used for acquiring human body surface sign information and human body three-dimensional space coordinate information; temperature difference information and human body posture data of the acupoint area and surrounding tissues; the machine learning processing module is internally provided with a trained improved convolutional neural network model, performs feature extraction and fusion on the data processed by the preprocessing module, and outputs initial acupuncture point coordinates; the dynamic self-adaptive calibration module dynamically corrects the coordinates of the acupuncture points; the gender specificity optimization module analyzes gender information of a patient and performs targeted adjustment on initial acupuncture point coordinates. According to the invention, the defects in precision, efficiency, adaptability and scene expansibility in the prior art are overcome.
Owner:HEILONGJIANG UNIV OF CHINESE MEDICINE

Dynamic multi-spot projection optical system based on LED light source

The invention discloses a dynamic multi-spot projection optical system based on an LED light source, which comprises the LED light source, a reflecting cover, a grating sheet, a condensing lens, a concave reflector and an optical reflection assembly, and is characterized in that the LED light source is arranged at the bottom of the reflecting cover, and the grating sheet is provided with a light-transmitting area with a preset pattern shape; the reflecting cover consists of a plurality of plane reflectors A; the concave reflector consists of a plurality of plane reflectors B; light emitted by the LED light source forms a pattern light beam through the grating piece, the light beam is divided and reflected into a plurality of sub light beams through the conical reflecting cover, and the sub light beams are guided to the condensing lens through the optical reflecting mirror set. According to the invention, a low-cost, laser-free and safe LED scheme is adopted, and through innovative optical design, a complex dynamic light and shadow effect comparable to or even surpassing laser projection is realized, and the imaging definition is kept unchanged within a projection distance range of 2-15 meters.
Owner:SHENZHEN CHENGTAI SEMICON TECH CO LTD

Clothing care flatness monitoring method, electronic equipment and fabric cleaning equipment

The embodiment of the invention discloses a clothing care flatness monitoring method, electronic equipment and fabric cleaning equipment, and belongs to the technical field of clothing care and monitoring. The clothing care flatness monitoring method comprises the following steps: acquiring a multi-angle RGB image and laser projection reflection data; according to the multi-angle RGB image and the laser projection reflection data, obtaining multi-modal fusion data of the surface of the to-be-nursed clothes; determining two-dimensional texture features and three-dimensional deformation features of the surface of the to-be-nursed clothes based on the multi-modal fusion data; determining a three-dimensional wrinkle strength index according to the two-dimensional texture features and the three-dimensional deformation features; and determining the flatness of the to-be-nursed clothes based on the three-dimensional wrinkle strength index. According to the method, the optical image and the laser structured light data are combined, so that the spatial accuracy of wrinkle recognition is remarkably improved, meanwhile, real-time decision support is provided for intelligent nursing equipment, the situation of excessive nursing or insufficient nursing is effectively avoided, and therefore the nursing effect is improved, and meanwhile energy consumption is reduced.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Unmanned aerial vehicle for road slope engineering inspection

The invention relates to the technical field of unmanned aerial vehicle application and highway engineering monitoring, in particular to a highway slope engineering inspection unmanned aerial vehicle which comprises a multi-rotor aircraft provided with a flight controller, the bottom of the multi-rotor aircraft is connected with a first holder, a plurality of supporting legs are arranged on the periphery of the first holder, and a second holder is arranged at the bottom of the first holder. An equipment tray is arranged at the bottom of the second holder; the laser projector is fixed at the bottom of the equipment tray and is used for projecting a reference image; the marking gun is fixed at the bottom of the equipment tray and is used for emitting marking paintballs; the high-definition camera is fixed to the bottom of the equipment tray and located between the laser projector and the marking gun. Optical axes of the high-definition camera and the laser projector are parallel to each other and are consistent with the emission direction of the marking gun; through multi-module collaborative operation, the slope inspection efficiency and precision are remarkably improved, and the system is particularly suitable for high-precision and automatic slope disease detection and safety evaluation under complex terrain conditions.
Owner:JILIN COMM POLYTECHNIC

Mixed tower drum monitoring method and device based on combination of laser vision and YOLOV5 model, electronic equipment, storage medium and program

The invention provides a mixed tower drum monitoring method and device based on combination of laser vision and a YOLOV5 model, electronic equipment, a storage medium and a program, and relates to the technical field of mixed tower drum swing monitoring. S10, an original image is acquired, the original image is preprocessed, and a preprocessed ROI image is output; s20, inputting the preprocessed ROI image into a pre-trained YOLOv5 model, and outputting a cross light spot dynamic parameter sequence; s30, outputting a synchronous six-dimensional time sequence data matrix according to the cross light spot dynamic parameter sequence; and S40, outputting a 28-dimensional normalized feature vector according to the synchronized 6-dimensional time sequence data matrix. Through the cooperation of the above structures, the device has the following beneficial effects: 1, through a non-contact measurement mode of laser projection and image acquisition, the damage of a traditional sensor to a tower drum structure is avoided; and secondly, top laser projection can be combined with an AI model to identify millimeter-level displacement change, so that a traditional monitoring blind area is made up, and the instability risk of the top structure is warned in advance.
Owner:HUBEI ENERGY GRP HANJIANG ENERGY DEV CO LTD

Digital assembling method for helicopter fairing

The embodiment of the invention discloses a digitalized assembling method of a helicopter fairing, which comprises the following steps of: 1, scanning the surface of the fairing and the surface of a helicopter body structure, and acquiring a three-dimensional contour model of the surface of the fairing and the surface of the helicopter body structure according to scanning data; 2, generating a visual assembly correction scheme by comparing the three-dimensional contour model with a design model imported into a controller; 3, in the fairing assembly process, a visual assembly correction scheme is projected through laser, non-contact hole making and polishing guiding are achieved, and digital assembly of the fairing is implemented; and 4, in the fairing assembling process, dynamic position information of the fairing and all the positioning targets on the aircraft body structure is obtained, the moving track of the fairing in the assembling process is solved, automatic alarming is conducted when the fairing is out of tolerance, and laser projection is frozen. The problems that an existing fairing assembling mode is low in assembling efficiency and precision, and the production efficiency and the assembling requirement of a helicopter are difficult to meet are solved.
Owner:HARBIN

Pipeline inspection system based on AR intelligent wearable device

The invention relates to a pipeline inspection system based on AR intelligent wearable equipment, and belongs to the technical field of industrial detection. The system comprises a sensing layer, a processing layer and an interaction layer, the sensing layer integrates laser projection, a flexible pressure sensor and an inertial measurement unit through a wearable glove, and pipeline data collection is achieved in combination with a millimeter wave radar, a multispectral camera and an ultrasonic thickness measurement module. The processing layer adopts a heterogeneous computing platform, dynamically distributes computing power and optimizes data processing efficiency; the interaction layer provides clear operation guidance in a complex environment through an adaptive projection engine and bone conduction feedback; the system can switch detection modes according to hand actions and automatically adjust projection parameters to adapt to different pipe diameters and illumination conditions; a distributed power supply design is adopted, a super capacitor and a lithium battery are combined, and long-time stable operation is guaranteed; according to the scheme, the inspection efficiency is improved, manual intervention is reduced, and the method is suitable for pipeline detection and maintenance in a complex industrial environment.
Owner:SHANGHAI ZHUOHAN TECHNOLOGY CO LTD

Dynamic laser projection marking device for mutual rescue of rail transit motor train units based on vehicle-vehicle ad hoc network

The invention relates to the technical field of laser projection, in particular to a dynamic laser projection marking device for mutual rescue of rail transit motor train units based on a vehicle-vehicle ad hoc network, which comprises a laser projection body, an outer sleeve box arranged outside the laser projection body, a protection mechanism arranged on the top surface in the laser projection body, and a mirror surface cleaning part. According to the dynamic laser projection marking device for mutual rescue of the rail transit motor train units based on the vehicle-vehicle ad hoc network, a baffle plate displacement end point triggers embedding of a guide block and a round hole, so that a liquid blocking plug moves downwards to conduct a cross-shaped through pipe, accurate time sequence matching of full opening of the baffle plate and spraying of cleaning liquid is achieved, a piston plate is matched, and a push plate is linked through a connecting rod; the opening action of the baffle is utilized to pressurize and supply liquid to the liquid storage tank, closed-loop control of mechanical action and cleaning start and stop is formed, the problem of response delay existing in a traditional separated system of the structure is solved, and the investment of additional pressurizing equipment is reduced.
Owner:QINGDAO EMU OF CHINA RAILWAY JINAN BUREAU GRP CO LTD

Rock lumpiness laser indicating device

The invention relates to the technical field of rock lumpiness identification, in particular to a rock lumpiness laser indicating device, which comprises L groups of laser projectors which are respectively arranged in different directions of a breaking hammer mechanical arm; the acquisition module is used for being matched with the laser projector to acquire grid deformation size data; and the central processing unit is used for obtaining the grid deformation size data and analyzing and processing the grid deformation size data to obtain a rock lumpiness index. According to the method, laser grid light is synchronously projected in multiple directions, deformation size data are acquired from different visual angles, and complementation of the visual angles in different directions can be realized, so that the problems of'dead angles' and information loss caused by mutual stacking and shielding among rocks are remarkably reduced, the coverage rate and reconstruction integrity of the whole point cloud are improved, and the reconstruction accuracy is improved. Through multi-view point cloud splicing and fusion, the obtained point cloud model is higher in integrity and richer in edge information, and subsequent fragmentation identification based on a machine learning model is facilitated.
Owner:SHANXI JIANGYANG ENG BLASTING CO LTD

Laser projection device

The invention discloses a laser projection device, and relates to the technical field of illumination, and the laser projection device comprises a reflection cylinder and a laser light source. A reflecting surface is formed on the side of the reflecting cylinder; a plurality of reflecting surfaces are arranged and are planes; the laser light source is used for emitting a lighting beam, so that the lighting beam is projected to the reflecting surface; wherein the reflection cylinder can rotate around the axis of the reflection cylinder, so that the surface normal direction of the reflection surface is changed; and the reflecting surface is in a projection shape. According to the technical scheme provided by the invention, the definition of light spots can be improved.
Owner:SHENZHEN QIANYAN TECH LTD

Integrated galvanometer laser projection method and integrated galvanometer laser control device

The invention discloses an integrated galvanometer laser projection method and an integrated galvanometer laser control device. The integrated galvanometer laser projection method comprises the steps that 1, a control card stores various data in a classified mode; when an upper computer issues a system parameter instruction, a communication interface is automatically switched according to a communication mode of the upper computer, and instruction data is analyzed and stored in an EEPROM (Electrically Erasable Programmable Read-Only Memory); 2, after the upper computer issues an instruction, the control card cooperatively controls the on-off state of the laser light source and the deflection angle of the laser galvanometer, and the position and the focal length of the lens are adjusted; 3, positioning an instruction according to a target point of the upper computer; the control card cooperatively controls the laser and the galvanometer to coarsely position the center of the target; and performing fine positioning on the center of the target by taking the target point obtained by coarse positioning as an initial reference position. The integrated galvanometer laser control device has the advantages that the environmental adaptability, the control precision and the operation convenience of the integrated galvanometer laser control device are remarkably improved.
Owner:ZERO LIGHT INTELLIGENT TECHNOLOGY (NINGBO) CO LTD

Laser projection equipment

The embodiment of the invention belongs to the laser display technology, and provides laser projection equipment, which comprises a laser light source, which comprises a plurality of laser arrays, each laser array comprises a plurality of lasers, and the plurality of lasers emit lasers with the same color; the light combining assembly is located on the light emitting side of the laser light source and used for combining laser emitted by the multiple laser arrays; the phase modulation element comprises a plurality of first target areas, the first target areas are used for changing the phases of the target light beams, and different first target areas change different phases of the target light beams; wherein the lasers with the same color in the target light beam cover the multiple first target areas, and the target light beam comprises lasers emitted by at least one of the multiple laser arrays and the light combining assembly. The laser of the same color in the target light beam is changed into the multi-phase light beam after being emitted through the multiple first target areas, so that the speckle phenomenon is effectively reduced, and the display effect of a projection picture is improved.
Owner:QINGDAO HISENSE LASER DISPLAY CO LTD

Replaceable pin type coding mark point for laser projection positioning system

The utility model discloses a replaceable pin type coding mark point for a laser projection positioning system, which belongs to the technical field of laser projection and comprises a target and a positioning pin which are detachably and fixedly connected with each other, and the target is further provided with a coding reference point suitable for being identified by the laser projection positioning system. According to the embodiment of the utility model, the target and the positioning pin are detachably connected, only one set of target and one set of positioning pins with different diameters need to be prepared, and flexible assembly can be carried out according to the size of a datum hole in a workpiece and a required coding reference point during use, so that the number of spare parts is reduced, and the use cost is saved. And meanwhile, high-efficiency and high-precision adaptation to datum holes with different diameters is realized, so that a projection system can identify coding standard points, and the aim of aligning a coordinate system of a CAD model corresponding to a workpiece object is realized.
Owner:DETEC (SHANGHAI) DIGITAL TECH CO LTD

LCOS laser projection module

The invention relates to the technical field of projection modules, and particularly discloses an LCOS laser projection module, which comprises a laser light source module, a laser speckle eliminator, a reflector, a diffuser, a collimating lens, a fly-eye lens, a relay lens, a first linear polarizer, a polarizing beam splitter, an LCOS chip, a second linear polarizer and a projection lens which are sequentially arranged along a light transmission path, the laser light source module is provided with a light source optical axis and is used for emitting light, and the light is projected by the projection lens after being modulated along a light transmission path to form a projection image. The light emitted by the laser light source has the advantages of narrow divergence angle, small light-emitting area and good light concentration and collimation, the resolution of a projected image can be improved, the projected image is bright in color and high in definition, and the requirements of simple structure and small size are met. Meanwhile, the laser speckle can be eliminated through the matching of the laser speckle eliminator and the diffusion sheet, and the projection image can meet the high contrast through the existence of the first linear polarizer and the second linear polarizer.
Owner:JIANGXI LIANHAO OPTOELECTRONIC CO LTD

Laser projection control method and distributed control device

The invention discloses a laser projection control method and a distributed control device. The laser projection control method comprises the following steps: step 1, designing a first control board card for galvanometer control; the first control board card comprises a first main control chip for realizing real-time calculation, a static random access memory for external memory expansion, a differential driving chip for transmitting a galvanometer control signal and a chip for realizing an independent communication system; 2, designing a second control board card for laser control, focal length control and temperature monitoring; and the second control board card comprises a second main control chip for realizing real-time calculation, a motor driving chip for driving a motor to move the lens to control the focal length, a laser control circuit amplifier chip and a thermistor. According to the invention, the effect of cooperative control of the laser and the galvanometer is realized.
Owner:ZERO LIGHT INTELLIGENT TECHNOLOGY (NINGBO) CO LTD

Laser projection positioning method and system for composite material sub-ply

The invention belongs to the technical field of aerospace composite material manufacturing, and discloses a laser projection positioning method and system for a composite material sub-layer. The system comprises a target spot which is integrated in design models of various structural parts in advance by adopting a standardized geometric feature shape, and is connected with a target seat in an inserting manner through a tail end convex part of the standardized geometric feature shape; the target seat is mounted on the surfaces of parts or molds with different sizes and shapes through an adjustable fixing structure; the target seat connecting shaft adopts a long-strip-shaped cylindrical part, two ends of the target seat connecting shaft are provided with shaft sections with different diameters, and the target seat connecting shaft integrally presents a stepped shaft characteristic and is used for connecting a plurality of target seats, so that the plurality of target seats capture a positioning reference in a laser projection system. The method breaks the technical prejudice that a special tool can guarantee high precision, large-size positioning can only depend on mechanical hard connection, reliability is inevitably reduced by manual intervention, and multiple functions and low cost cannot be achieved at the same time.
Owner:SHENYANG XIZI AEROSPACE INDS

Multi-robot cooperation welding track planning method and system based on 3D vision

The invention is suitable for the technical field of industrial automatic welding, and provides a multi-robot cooperation welding track planning method and system based on 3D vision, and the method comprises the steps that historical welding data, located in a double-robot handover welding area, of a preset number of welded historical workpieces before a target batch of workpieces is obtained; laser projection patterns in the handover welding areas of the front robot and the rear robot corresponding to each historical workpiece are extracted from the historical welding data, and the maximum change area of each laser projection pattern is determined; according to the method, the maximum change area recognition and 3D visual analysis technology of the laser projection pattern is introduced, the rear robot heat accumulation parameters are combined, an angle correction mechanism based on the deviation trend slope is constructed, and dynamic compensation of the welding deviation along with the time evolution trend under the double-robot handover welding scene is achieved for the first time.
Owner:NEW WEILAI INTELLIGENT TECH (SHANDONG) CO LTD

Detection module, detection device, detection system and detection method

The invention discloses a detection module, a detection device, a detection system and a detection method. The detection module comprises a scanning unit which is configured to perform three-dimensional scanning on a detected surface and comprises a laser projection device and a laser receiving device, the laser projection device comprises a laser source and at least two MEMS micro-scanning mirrors, the at least two MEMS micro-scanning mirrors are configured to reflect laser emitted by the laser source to the detected surface, and the laser receiving device is configured to receive the laser emitted by the detected surface; the laser receiving device is configured to receive the laser reflected from the measured surface to obtain at least two laser images of the measured surface; an RGB image sensor configured to capture an RGB image of the measured surface; and a processor connected to the scanning unit and the RGB image sensor, and configured to splice the at least two laser images together, and detect a defect on the detected surface based on the spliced laser image and RGB image.
Owner:AIRBUS (SAS)

Tunnel construction deformation monitoring system based on machine vision and monitoring method thereof

The invention discloses a tunnel construction deformation monitoring system based on machine vision and a monitoring method thereof, and belongs to the technical field of tunnel construction monitoring. Laser emitters arranged in a tunnel project light spots to a ground screen, an industrial camera is used for collecting images, the light spots are automatically identified, coordinates are calculated, and the coordinates are compared with an initial reference; according to the tunnel convergence and settlement displacement monitoring system and method, light spots are automatically recognized and three-dimensional coordinates are calculated through a vision measurement system composed of the laser transmitter and the industrial camera, unmanned and high-precision real-time monitoring of tunnel convergence and settlement displacement is achieved, the system is simple in structure and convenient to operate, and the working efficiency is improved. The problems of manual measurement errors and low efficiency are effectively avoided, the laser projection screen is arranged on the ground, interference of a complex environment in a tunnel on direct measurement is effectively avoided, meanwhile, the time control switch integrated in the system can set working time according to requirements, and intelligent management of energy is achieved.
Owner:ROAD & BRIDGE INT CO LTD +2

Laser, laser light source and laser projection equipment

The embodiment of the invention belongs to the laser projection technology, and provides a laser device, a laser light source and laser projection equipment, the laser device comprises a bottom plate, a tube shell, a light emitting part and a temperature measuring element, the light emitting part comprises at least one light emitting chip, the bottom plate and the tube shell form an accommodating space, and the light emitting chip and the temperature measuring element are both arranged in the accommodating space and arranged on the bottom plate; the at least one light-emitting chip is used for emitting light beams with at least one color; and the temperature measuring element is used for reflecting the temperature in the accommodating space. The laser temperature detection accuracy can be improved, and the integration degree of the laser can be improved.
Owner:QINGDAO HISENSE LASER DISPLAY CO LTD

Hand-specific laser projected virtual interfaces and operations

Systems, methods, devices and non-transitory, computer-readable storage mediums are disclosed for a wearable multimedia device and cloud computing platform with an application ecosystem for processing multimedia data captured by the wearable multimedia device. In an embodiment, a wearable multimedia device obtains first configuration data specifying first operations associated with a first hand of a user of the wearable multimedia device, and second configuration data specifying second operations associated with a second hand of the user. Further, the device captures sensor data from a camera and / or a depth sensor of the wearable multimedia device, and determines a presence of the first hand and / or the second hand based on the sensor data. Further, the device performs at least one of (i) the first operations responsive to determining the presence of the first hand, or (ii) the second operations responsive to determining the presence of the second hand.
Owner:HEWLETT PACKARD DEVELOPMENT COMPANY LP

Reel-to-reel based double-sided LDI exposure system and exposure method

The invention discloses a roll-to-roll based double-sided LDI exposure system and exposure method, relates to the technical field of flexible electronic manufacturing, and can solve the problem that the alignment precision is reduced due to the fact that existing double-sided laser imaging equipment cannot compensate dynamic deformation of a base material in the transmission process. The system is sequentially provided with a marking station and an exposure station in the conveying direction of a base material, and the marking station is provided with a marking device used for making marking points on the base material; the exposure station is provided with a pose adjusting mechanism and two laser projection head arrays which are driven by the pose adjusting mechanism and oppositely arranged on the upper side and the lower side of a base material, the alignment camera collects marking point images on the base material, and the control device controls the pose adjusting mechanism to adjust the poses of the laser projection head arrays according to image information, so that an exposure pattern is aligned with a target area of the base material. Therefore, the dynamic error can be adaptively compensated, the alignment precision is improved, the exposure method can realize parallel processing of marking and exposure, and the production efficiency is effectively improved.
Owner:SHENZHEN YOUSHENG TECH CO LTD

Laser television and control method of projection screen

The embodiment of the invention belongs to the technical field of display, and provides a laser television and a control method of a projection screen, the laser television comprises a laser projection device and a liftable projection screen, and the liftable projection screen comprises a first motor used for driving the projection screen to lift and a second motor used for driving the projection screen to fold and unfold; when the laser projection equipment receives a preset signal, a control signal is sent to the control module; the control module controls the two motors to work according to the control signal and drives the projection screen to move. In the moving process of the projection screen, the control module adjusts the rotating speed of the first motor and the rotating speed of the second motor according to the operation parameters of the first motor and the rotating speed signals corresponding to the operation parameters; height information of the projection screen is determined and sent to the laser projection equipment according to the operation parameters; and the laser projection equipment projects an image matched with the height information to the projection screen. The situation that the screen shakes or wrinkles occur in the lifting process is reduced, and the picture display effect is improved.
Owner:QINGDAO HISENSE LASER DISPLAY CO LTD

Laser projection equipment, laser projection equipment heat dissipation method and heat dissipation device

The present invention discloses a laser projection device, a heat dissipation method for the laser projection device, and a heat dissipation device, which belong to the field of imaging technology. The temperature detection component in the laser projection device is used to obtain the temperature of the red laser during operation; the processing component is used to control the radiator to dissipate heat from the red laser so that the temperature of the red laser is between a first temperature value and a second temperature value. The first temperature value is the highest temperature value at which the color ratio of the red laser emitted by the red laser in the imaging picture of the laser projection device deviates less than a specified value, and the second temperature value is the lowest temperature value at which the color ratio of the red laser emitted by the red laser in the imaging picture of the laser projection device deviates less than a specified value. This solves the problem that the heat dissipation method of the laser projection device in the related art is not comprehensive enough and it is difficult to ensure the imaging effect of the laser projection device, thereby achieving the effect of effectively ensuring the imaging quality of the laser projection device.
Owner:QINGDAO HISENSE LASER DISPLAY CO LTD

Laser projection equipment and control method

The embodiment of the invention belongs to the technical field of display, and provides laser projection equipment and a control method, a first sensor in the laser projection equipment detects the rotating speed of a fluorescent wheel, and transmits a first rotating speed signal to a display control unit through a first transmission line; the second sensor detects the rotating speed of the color filter wheel and transmits a second rotating speed signal to the display control unit through the second transmission line; the first transmission line and the second transmission line are wrapped with metal conductors, and the metal conductors form a shielding layer for shielding electromagnetic interference. The display control unit controls the fluorescent wheel to rotate at a first rotating speed and the color filter wheel to rotate at a second rotating speed according to a to-be-displayed image signal, the first rotating speed signal and the second rotating speed signal, and sends a first driving signal to the laser light source; the laser light source emits a light beam to the color wheel system according to the first driving signal. Therefore, the occurrence of projection display abnormity can be reduced, and the user experience is improved.
Owner:QINGDAO HISENSE LASER DISPLAY CO LTD

Circuit board system and laser projection equipment

The invention discloses a circuit board system and laser projection equipment, and belongs to the field of laser projection. The invention provides a circuit board system. The circuit board system comprises a power panel, a light source driving module and a control module, the control module comprises a first circuit board, a first control circuit and a digital light processing DLP chip, and the first circuit board and the power panel are separately arranged; the light source driving module comprises a second circuit board and a laser. The DLP chip and the DMD light valve are both located on the first circuit board in the control module, and it can be guaranteed that the probability that the control signal sent by the DLP is interfered is low. And when the form of the laser in the laser projection equipment needs to be replaced, only the light source driving module needs to be replaced, so that the research and development cost and the production cost of the laser projection equipment can be reduced.
Owner:QINGDAO HISENSE LASER DISPLAY CO LTD

Methods for controlling devices, control devices, home appliances, and storage media

The present invention relates to a method for controlling equipment, a control device, home appliances, and a storage medium, and concerns the field of smart control. The method includes generating a virtual function interface by a laser projection assembly, displaying the virtual function interface in a target projection area, receiving a selection operation on the virtual function interface to confirm a target program, and controlling the home appliance to execute the target program. The present invention can save panel space in home appliances, further reduce the product volume of home appliances, decrease the space occupied by home appliances, and improve the user experience of using home appliances.
Owner:QINGDAO HAIER WASHING MASCH CO LTD +1