1284 results about "Laser transmitter" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

A laser level includes a housing having a laser emitter to emit a laser along a plane. The laser level includes a mounting base connected to the housing. The housing is pivotable relative to the mounting base about three axes by a user grasping the housing and moving the housing. The housing includes a first micro-adjustment knob to adjust the housing, relative to the mounting base, about a fourth axis. The housing includes a second micro-adjustment knob to adjust the housing, relative to the mounting base, about a fifth axis perpendicular to the fourth axis.

The invention discloses a rheology-birefringence combined in-situ testing device and method based on chopper rotation frequency signals, belongs to the technical field of optical testing, and aims to solve the technical problems that an existing Spark-FB device is low in measurement accuracy and limits application scenes. The laser emitter emits a light beam along a set angle (forming an angle of 45 degrees with the horizontal plane), the light beam is converted into linearly polarized light through the polarizer, and an optical signal is modulated through the rotating chopper; the modulated light beam penetrates through a polymer sample to which a shear flow field is applied by a commercial rheometer, and transmission light carrying optical anisotropy information of the sample sequentially passes through a 1 / 4 wave plate and a polarization analyzer, and is finally received by a photoelectric detector and transmitted to a lock-in amplifier for analysis. According to the invention, an independent datum reference signal is provided through the chopper, decoupling and combination of a commercial rheometer and a birefringence light path are realized, and synchronous and accurate in-situ measurement of rheological and optical properties of a high polymer material under a deformation condition can be realized.

The invention relates to the technical field of laser welding control, and discloses an intelligent control method for a water-cooling heat dissipation ultra-small integrated handheld laser welding machine. The method comprises the steps that a thermal dynamic regulation and control model is trained and generated according to real-time temperature monitoring data of a water-cooling heat dissipation unit and power operation parameters of a laser transmitter; the model is applied to predict the heat distribution change in the welding operation period in real time, and the flow speed of cooling liquid of a water cooling unit is dynamically adjusted based on the prediction result; then, in combination with the adjusted cooling liquid flow velocity data, virtual analogue simulation is conducted on the movement track of the laser welding joint, and quality characteristic parameters of the simulated welding joint are evaluated; and finally, aiming at a predefined welding quality optimization target, executing optimization operation on the simulation quality characteristic parameter data set, and generating and outputting an intelligent control execution scheme. According to the method, intelligent control over the welding process is achieved, the heat dissipation accuracy and the welding quality stability are improved, and the method is suitable for the efficient operation requirement of the ultra-small integrated handheld laser welding machine.

The embodiment of the invention provides an infrared touch control device, projection equipment and an infrared touch control method, which are used for solving the technical problem of insufficient convenience of the existing key type interaction mode. The infrared touch device comprises a frame shell, an infrared laser transmitter, an infrared camera and a function processing circuit. According to the infrared touch device, the projector is used for projecting a control menu picture, an invisible infrared light plane is formed through the infrared laser transmitter, the control menu picture and the infrared light plane jointly form a virtualized interaction interface, and then interaction behaviors of a user are sensed in real time through the infrared camera. Therefore, seamless fusion of the interactive behavior and visual feedback of the user is realized, and the instant response touch function provided by the physical touch screen is reproduced by adopting different technical paths, so that the interactive process is simpler, more visual, more natural and more convenient, and the user experience is greatly optimized.

The invention relates to a leak rate detection device and method based on a laser emission resonant cavity. The leak rate detection device comprises a resonant cavity; a laser transmitter; the conversion device is used for converting the photoacoustic signal into an electric signal; and the processing device converts the electrical signal into a leak rate Q. The leakage rate detection method comprises the following steps: setting an acousto-optic resonant frequency f of the resonant cavity; the wavelength of the laser emitted by the laser emitter is modulated, and the modulation frequency is the same as the acousto-optic resonance frequency f; controlling a laser transmitter to transmit modulated laser to an incidence window, and enabling the laser to irradiate the interior of the resonant cavity after passing through the incidence window; the characteristic gas absorbs the laser to generate vibration, and a photoacoustic signal is generated; collecting a photoacoustic signal by using a conversion device, and converting the photoacoustic signal into an electric signal; modulating the electric signal to obtain the oxygen concentration in the resonant cavity; and obtaining the leakage rate Q of the semiconductor cavity according to the oxygen concentration. According to the invention, the leakage condition of the semiconductor chamber can be accurately detected without shutdown.

The invention provides an anti-pinch flat thin-walled tube cutting jig, a sawing machine and a method. The jig comprises a clamping seat, a semicircular sleeve and a laser transmitter, the clamping seats are symmetrically and fixedly arranged on a jaw of the bench clamp and are used for assembling the jig on the bench clamp; each semicircular sleeve is of a half-section structure, a semicircular arc-shaped containing cavity is formed in each semicircular sleeve, the arc diameter of each semicircular arc-shaped containing cavity is matched with the outer diameter of a thin-walled pipe to be cut, and when the two semicircular sleeves are folded, the thin-walled pipe is wrapped and clamped, and a cutting gap is reserved; the back of the semicircular sleeve is connected with the clamping seat, and the semicircular sleeve is fixed to the lower portion of the clamping seat in a cantilever mode. The laser transmitter is arranged at the top of the clamping base and used for transmitting cross-shaped laser rays to judge clamping of the thin-walled tube. The semicircular sleeve provides uniform and firm radial support for the thin-walled tube, and huge clamping force of the bench clamp is dispersed to the whole semicircular sleeve, so that plastic deformation and flattening caused by the fact that the clamping force directly acts on the thin-walled tube are avoided, and the technical problem of deformation and flattening during cutting of the thin-walled tube in the prior art is effectively solved.

The invention discloses a position monitoring mechanism and a treatment system, and relates to the technical field of medical equipment, and the position monitoring mechanism comprises a fixed frame; the plurality of laser emission heads are arranged along the circumferential direction of the fixed frame; the plurality of laser receiving heads and the laser emitting heads are distributed in the circumferential direction of the fixing frame in a one-to-one correspondence mode, and laser paths between all the laser emitting heads and the corresponding laser receiving heads form a laser envelope net with a clearance area in the middle of the fixing frame; the laser transmitter is connected with the laser transmitting head; the laser receiver is connected with the laser receiving head; according to the position monitoring mechanism, omnibearing monitoring is carried out through the laser envelope net, once an object is close to an anti-collision part, the laser envelope net can sense the object in time, then comprehensive and accurate monitoring data are provided for the anti-collision part, and the probability of collision is greatly reduced.

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.

The utility model provides a corrosion-resistant movable contact spring, which relates to the technical field of movable contact springs and comprises a movable contact spring body, a Z-shaped elastic sheet is mounted at the top of the movable contact spring body, a measuring sheet is mounted on the side surface of the movable contact spring body, a laser transmitter is mounted on one surface of the inner side of the measuring sheet, and the laser transmitter is mounted on the other surface of the inner side of the measuring sheet. A laser receiver is installed on the side, away from the laser transmitter, of the inner side face of the measuring piece, an elastic rubber sleeve is installed on the surface of the movable contact spring body, a reinforcing piece is installed on the inner side of the movable contact spring body, and a sealing ring is installed on the surface of the reinforcing piece. The movable contact spring body is composed of a protective layer, a stainless steel base body, an anti-corrosion layer, a passivation layer and an anti-rust layer in sequence from top to bottom, so that the overall corrosion resistance of the movable contact spring is improved, and the service life of the movable contact spring is prolonged.

The invention discloses a steel template surface flatness detection device, and relates to the technical field of steel template detection equipment, the steel template surface flatness detection device comprises a base and a steel template main body, the top of the base is fixedly connected with a mounting frame, the center of the top of the base is provided with an inner groove, and the mounting frame is provided with an optical flatness measuring instrument. A conveying belt is fixedly installed on the inner wall of the inner groove, and the bottom detection face of the steel formwork body is placed on the surface of the conveying belt. After the steel template main body is clamped by the clamping disc and overturned until the detection surface faces upwards, the driving equipment drives the mounting frame and the mounting block to enable the optical flatness measuring instrument to move in a planar manner, non-contact flatness measurement is performed through the laser transmitter and the photoelectric sensor, and jacking and automatic overturning are realized by using the sliding rod and the inclined groove in the process, so that the flatness measurement accuracy is improved. Surface dust is removed through vibration triggered by a short rack and a torsional spring, and deep dust is adsorbed by negative pressure of an adsorption pipe, so that the detection accuracy is guaranteed.

The invention discloses cleaning equipment and a cleaning method, and relates to the technical field of cleaning devices. The cleaning equipment comprises an objective table, a laser transmitter, a jet ejector, an image acquisition module and a controller. The objective table is used for bearing a to-be-cleaned part; the laser transmitter is used for transmitting laser to a to-be-cleaned part so as to clean dirt on the surface of the to-be-cleaned part; the jet flow ejector is used for ejecting liquid to the to-be-cleaned part so as to clean dirt on the surface of the to-be-cleaned part; the image acquisition module is used for acquiring image data of a to-be-cleaned part; the controller is electrically connected with the laser transmitter, the jet flow ejector and the image acquisition module; the controller is used for controlling the working state of the laser transmitter and / or the working state of the jet ejector based on smudginess parameters of the to-be-cleaned surface obtained by the image data, the smudginess parameters comprise the smudginess type, the smudginess thickness and the smudginess position, and the working state at least comprises a start-stop state.

The invention provides a size detection device for processing a lustring roller, relates to the technical field of size detection of lustring rollers, and aims to solve the problems that an existing device is tedious in distance adjustment, inflexible in base installation and low in detection precision due to lack of matched software. The device comprises a laser transmitter and a laser receiver which are oppositely arranged, a bottom plate of which the top surface is provided with a guide groove, a sliding assembly comprising a driving motor, and a control software system, and comprises a pattern interference elimination module, a data acquisition module, a space adaptive adjustment module, a multi-dimensional parameter fusion calculation module, an error compensation module and a motor control module. The sliding assembly drives the laser transmitter to automatically adjust the distance, and the fixing plate can be stored on the bottom face of the bottom plate to adapt to multiple scenes. And the control software system eliminates pattern interference, calculates the outer diameter / cylindricity / local concave-convex degree, and compensates environment and mechanical errors. The device effectively solves the problem of pain points of an existing device, is high in software and hardware adaptability, remarkably improves the detection efficiency and precision, adapts to lustring rollers of multiple specifications, and is convenient to operate and high in practicability.

The invention discloses a particle erosion test device and method, and belongs to the technical field of particle erosion tests.The particle erosion test device comprises a clamping piece used for clamping a workpiece, a sand blasting device and a laser emitter, and the laser emitter is used for emitting laser to irradiate the workpiece so as to heat the workpiece; the particle erosion test device further comprises cooling water pipes and a vacuum pipe, the vacuum pipe is arranged outside the laser transmitter in a sleeving mode, the two opposite ends of the vacuum pipe are connected with the cooling water pipes, and the cooling water pipes are communicated with the cooling water tank. The cooling water pipe is used for introducing circulating cooling water into the vacuum pipe so as to adjust the temperature of the laser transmitter, and the air compressor sprays compressed air to the workpiece through the compressed air spraying pipe so as to cool the workpiece. Through combined use of the laser heating device and the particle erosion device, a particle erosion test in an extreme environment is stably simulated, and the effectiveness of the test is ensured.

The invention relates to the technical field of engineering measurement and deformation monitoring, and discloses a foundation pit deformation detection device for laser monitoring, which comprises a vehicle body, a moving assembly, a lifting assembly, an angle adjusting assembly, a laser transmitter, a control piece and a carrying frame. The moving assembly is arranged at the bottom of the vehicle body and used for achieving moving arrangement of the device at the bottom or the peripheral area of a foundation pit. The lifting assembly is vertically arranged on the vehicle body and used for adjusting the height position of the laser transmitter. The angle adjusting assembly is arranged at the upper end of the lifting assembly and used for adjusting the horizontal azimuth angle and the pitch angle of the laser transmitter. A monitoring control system based on the device structure state is arranged in the control piece, cooperative control is conducted on the posture, the lifting height and the angle state of the vehicle body, a laser beam can be stably aligned with a monitoring target on the side wall of a foundation pit or a supporting structure, high-precision deformation monitoring under multiple stations is achieved, and the device is compact in structure, flexible in arrangement and high in reliability. And foundation pit monitoring requirements in a complex construction environment can be met.

The utility model discloses a wireless monitoring device for displacement monitoring, which relates to the technical field of wireless monitoring devices and comprises a wireless monitoring device body, a mounting seat, a laser transmitter and a standard platform, and the wireless monitoring device body is arranged at the top of the mounting seat. The detection reminding mechanism is matched with the adjusting moving mechanism to check the laser transmitter and the standard platform, a user can adjust conveniently, and the problems that an existing wireless monitoring device is affected by factors such as temperature fluctuation and environment interference, structural deviation is prone to being generated, monitoring data deviates, and the monitoring accuracy is poor are solved. The temperature, the strong wind load, the foundation settlement, the atmospheric turbulence interference and the like in the field complex environment can make the device displace or change the posture, the offset accumulation effect can reduce the measurement precision, a user is difficult to find the offset in time, and the wireless monitoring device can be directly pre-buried and installed, so that the wireless monitoring device cannot be damaged. Therefore, the problem of inconvenience in subsequent calibration of the wireless monitoring device is solved.

The invention belongs to the technical field of fiber laser, and discloses a galvanometer lens bonding calibration device and a bonding calibration method.The galvanometer lens bonding calibration device comprises an optical screen, a bonding unit and a laser emitting unit, the optical screen is provided with a preset qualified area, and the bonding unit comprises a lens clamp, a supporting shaft, a support and a clamping mechanism capable of clamping a galvanometer lens; the two ends of the lens clamp are an assembling hole and a through groove respectively, the two ends of the supporting shaft are a connecting end connected with the support and a matching end detachably inserted into the assembling hole respectively, a driving shaft of the galvanometer motor can be inserted into the assembling hole, the through groove can contain a galvanometer piece and an adhesive, and the laser emitting unit comprises a laser emitter capable of emitting light beams to the reflecting surface. The reflecting surface can reflect the light beam to the optical screen, when the reflecting surface reflects the light beam to the preset qualified area, the parallelism between the reflecting surface and the inner wall of the through groove reaches the preset parallelism, and the galvanometer sheet bonding calibration device achieves calibration of the parallelism between the reflecting surface and the inner wall of the through groove.

The utility model belongs to the field of beam deflection monitoring devices, and particularly discloses a beam deflection change amplification and visualization device. Comprising a laser emitting device and a laser refraction device. The laser emitting device is fixed to a column at one end of the beam, the laser refraction device is installed at the bottom of the middle of the beam, and laser is refracted and amplified through a convex lens. A screw rod and two round rods in the device are arranged in parallel, and a convex lens is vertically fixed at the bottom of the screw rod and can be finely adjusted through a nut. And the light spot observation plate with scales is arranged below the column on the opposite side of the laser emitting device, so that the displacement of the light spot is convenient to observe and measure. In addition, the angle of a laser transmitter in the laser transmitting device can be adjusted so as to meet different measurement requirements. The convex lens is designed to be detachable, so that lenses with different focal lengths can be replaced according to actual requirements; through refraction and amplification of the laser, accurate measurement and visualization of beam deflection change are realized, and the device has the advantages of simple structure, convenient operation, accurate measurement and the like.

The invention discloses a concrete resiliometer calibration device, and relates to the technical field of building detection equipment calibration. The concrete rebound apparatus calibration device comprises a rectangular plate-shaped base, a dovetail groove is formed in the base, an arc-shaped clamping mechanism, a jacking mechanism and a laser calibration mechanism are arranged on the base, the arc-shaped clamping mechanism comprises a U-shaped arc-shaped clamping body, an arc-shaped clamping block and a locking bolt, a buffer layer and an anti-skid layer are arranged on the inner side of the arc-shaped clamping block, and transverse stable fixing of a rebound apparatus body is achieved; the jacking mechanism pushes a jacking plate to slide along a dovetail groove through a jacking bolt to axially jack the rebound apparatus main body, the laser calibration mechanism comprises a second fixing plate, a calibration plate, a pressure sensor, a laser transmitter and a laser sight glass, and the laser transmitter transmits a light beam to the laser sight glass to monitor the position of a striking rod. The rebound value calibration precision can be improved, the operation process is simplified, the rebound instrument equipment is protected, and the on-site mobile calibration requirement is met.

The invention relates to a three-dimensional point cloud prediction geometric coding method based on deep learning, and the method comprises the steps: 1, forming a prediction tree through points collected by each laser transmitter, and converting an original laser radar point cloud LPC into a plurality of prediction trees for representation; 2, respectively designing different predictors and entropy encoders for each component of the coordinates of the points, and compressing each component of the coordinates of the points by applying different quantization step lengths; 3, selecting a quantization step size for quantifying each component by adopting a quantization step size selection strategy; 4, adopting an entropy model to model the probability distribution of the residual error of each component so as to encode the residual error entropy; and step 5, decoding is realized through a reverse process from the step 1 to the step 4. Compared with other methods, the method provided by the invention obtains the best rate distortion performance.

The invention relates to the field of display screen production, in particular to intelligent cutting equipment for display screen production. Comprising a console and a laser transmitter. And a laser transmitter is mounted on the console. According to the laser scribing device, the function of synchronously cracking after laser scribing is achieved, and the specific process is that when a laser transmitter resets after scribing is completed, an electric push rod drives a cutting head to move downwards, so that the cutting head makes contact with a stress groove formed after scribing cutting, and then when the laser transmitter moves and resets, the cutting head is driven by the electric push rod to move downwards; the mechanical force is applied to the formed laser cutting stress groove through the cutting head, so that the laser cutting stress groove is completely cracked, splitting is achieved, and the problems that in traditional display screen cutting, due to the fact that laser scribing and mechanical splitting serve as independent working procedures, the machining efficiency is low, and damage is likely to be generated in secondary alignment and machining are solved.

The invention discloses a bent pipe flange welding tool and an automatic calibration method, and belongs to the technical field of bent pipe flange welding equipment. The invention discloses a bent pipe flange welding tool and an automatic calibration method. The bent pipe fixing assembly is fixedly mounted on one side of the base; the laser calibration assembly comprises a first laser transmitter and a first target; the transmitting axis of the first laser transmitter and the self-centering clamp are coaxially mounted; the first target is detachably mounted at the axis position of the three-jaw chuck; and the adjusting assembly is connected with the three-jaw chuck and drives the three-jaw chuck. According to the technical scheme, the self-centering clamp, the laser calibration assembly and the adjusting assembly are arranged, so that dependence on professional skills and long-term experience of operators is greatly reduced, and workers subjected to basic training can quickly and reliably complete high-precision centering operation; and the consistency and the general reliability of the welding quality are fundamentally guaranteed.