2630 results about "Laser ranging" patented technology

The invention provides a marine target real-time positioning and tracking system and method based on multi-source data fusion, and belongs to the field of target positioning and tracking. The sensor portion collects raw data. The data acquisition and time synchronization module is responsible for receiving and aligning data of each sensor; the multi-stage coordinate system registration and transformation module unifies all observation data to a world coordinate system by using IMU data and preset calibration parameters; the AI visual target detection module processes the video stream to identify a target; the adaptive federated Kalman filtering fusion module receives each path of processed data and outputs optimal target state estimation; and the dynamic task and resource scheduling module performs optimal allocation on system resources according to the current tracking state to form closed-loop control. Through deep fusion of high-precision RTK positioning data, laser ranging data, photoelectric pod attitude information and an AI vision algorithm, the positioning precision, tracking robustness and system real-time performance of a sea target under a complex dynamic sea condition are improved.

The invention relates to the technical field of laser ranging, in particular to a double-optical-comb hybrid ranging device which comprises a signal detection optical path system and a signal demodulation optical path system. Wherein the signal detection optical path system comprises a first optical frequency comb, a first optical isolator, a first optical collimator, a first beam splitter prism, a reference mirror, a Faraday rotator, a convergence mirror and a target reflector; the signal demodulation optical path system comprises a second optical frequency comb, a second optical isolator, a second optical collimator, a half-wave plate, a second beam splitter prism, a third beam splitter prism, a first polarization controller, a first photoelectric detector, a reflector, a polarization beam splitter prism, a second polarization controller and a second photoelectric detector. A third polarization controller; and a third photoelectric detector. According to the invention, three ranging technologies of asynchronous optical sampling ranging, multi-heterodyne interference ranging and synthetic wavelength ranging are fused, and the problem that a large ranging range and high ranging precision cannot be simultaneously considered in the ranging process is solved.

The invention relates to the technical field of laser ranging, in particular to an unmanned aerial vehicle dynamic laser ranging method based on multi-source fusion and adaptive compensation, and the method comprises the following steps: obtaining a ranging pulse of a laser ranging module, and carrying out three-axis rotation and coordinate translation in combination with an IMU angle to generate a geographic registration coordinate set; radar and ultrasonic ranging are fused to construct redundant distance compensation data, particle filtering is executed based on IMU acceleration angular velocity to generate an attitude constraint distance, SLAM weight is adjusted according to illumination and meteorological parameters, and an unmanned aerial vehicle dynamic ranging coordinate result set is generated. Spatial registration is executed by combining longitude and latitude height data, by establishing dynamic association between the ranging data and IMU attitude data, smoothness and continuity of the ranging data can be kept when attitude disturbance is severe, the weight proportion of the vision ranging data in multi-source fusion is dynamically adjusted, and the high-precision estimation capacity of the target distance in the dynamic flight state is improved.

The invention belongs to the technical field of stator slot wedge detection, and discloses a generator stator slot wedge online detection method and system based on acousto-optic monitoring fusion. The method comprises the following steps: acquiring laser ranging data, acoustic monitoring data and generator working condition parameter data of online looseness detection of a generator stator slot wedge; preprocessing the laser ranging data, the acoustic monitoring data and the generator working condition parameter data to obtain laser ranging features, acoustic features and working condition parameters; and inputting the optical ranging features, the acoustic features and the working condition parameters into a pre-trained auto-encoder for anomaly detection, and obtaining an online looseness detection result of the generator stator slot wedge. By fusing the optical ranging technology, the optical fiber acoustic monitoring technology and the unsupervised deep learning algorithm, the important technical breakthrough in the field of generator stator slot wedge looseness detection is realized, and online stator slot wedge looseness detection can be carried out.

The invention relates to the technical field of transformer coil detection, and discloses a detection device for a transformer coil, which comprises a base frame, the driving mechanism is installed on the base frame and used for providing linear motion in the X direction, the Y direction and the Z direction; according to the scheme, by means of the detection mode that spiral scanning motion is combined with self-adaptive contact and laser ranging, the fatal defects that manual detection is low in efficiency, high in subjectivity and prone to making mistakes and missing detection are overcome, complete three-dimensional shape data of the surface of the coil can be rapidly and accurately obtained, and the detection accuracy is improved. According to the method, local fine defects which are difficult to discover manually can be detected, the reliability and the consistency of detection results are improved, objective and quantitative data support is provided for evaluating the winding quality, the mechanical strength and the long-term operation reliability of a transformer coil, and the manufacturing quality of a transformer and the operation safety of a power grid are guaranteed.

The invention belongs to the technical field of PCB flying probe detection equipment, and particularly relates to a flying probe compensation method and system based on PCB curved surface modeling, and the method comprises the steps: obtaining the size of a PCB, and carrying out the equilateral triangle grid division; in the visual alignment process, the laser distance measuring sensor is synchronously driven to carry out rapid non-contact height measurement on the vertex of the grid; based on the vertex three-dimensional coordinates, fitting triangular patches through a space plane equation and splicing the triangular patches into a three-dimensional curved surface model; performing bilinear interpolation on an area formed by adjacent patches in the model to smooth a curved surface; and finally, selecting an interpolation function according to the position of the test point to calculate the accurate height, and generating a Z-axis displacement compensation value of the probe. According to the high-precision measurement and self-adaptive compensation of the PCB warpage, the efficiency and precision of the flying probe test are considered, and the problem of poor contact or overvoltage damage of the probe caused by the board warpage is effectively solved.

The invention relates to the technical field of image quality optimization, and discloses a hunting camera imaging quality optimization method based on multimode data fusion. The method comprises the following steps: acquiring a visible light image, a thermal infrared image, a laser ranging point cloud and inertial measurement unit data, and carrying out space-time alignment and registration to form synchronous multimode data. A controllable imaging parameter set and scene context description information are separated by performing joint feature extraction on synchronous data. And for each parameter to be optimized, the system retrieves a plurality of candidate strategies from the imaging optimization knowledge base by taking the current value and the scene context as query conditions, selects an optimal strategy through fusion decision calculation, and finally generates and executes a global imaging parameter optimization instruction set to control a camera to complete image capture. According to the method, intelligent optimization of imaging parameters based on depth scene understanding is realized, and the image quality and adaptability of the hunting camera in a complex environment are improved.

The embodiment of the invention discloses a laser ranging method and device, laser ranging equipment and a storage medium. The method is based on laser ranging equipment, and the ranging equipment comprises a control unit, a laser and a sampling unit. The method comprises the following steps: performing phase delay control and delay output control on the laser through the control unit, so that the laser transmits a plurality of laser pulse signals to a measured target in sequence according to a preset delay step length after phase delay; the laser pulse signal is reflected by the measured target to form an echo signal; sampling the plurality of echo signals through the sampling unit to obtain a plurality of groups of first sampling data; each echo signal corresponds to a group of first sampling data; and through the control unit, based on the multiple groups of first sampling data, determining the detection distance of the detected target. According to the invention, the precision of laser ranging is effectively improved in a low-cost manner.

The invention provides a temperature drift compensation method, device and equipment for laser ranging in a low-temperature scene and a medium, and the method comprises the steps: building a temperature-drift model through the fine calibration of a laboratory; laser temperature measured by the double temperature sensors is obtained, the laser chip temperature is obtained through Kalman filtering, and a temperature-drift model is called to calculate the wavelength drift distance and the power drift distance at the current temperature; calculating a TEC target temperature compensation amount according to the wavelength drift amount, and calculating a driving current compensation amount according to the power drift amount; and based on the driving current compensation amount, a digital-to-analog converter is adopted to update laser driving current compensation power drift, so that the problem of low track detection precision by adopting laser ranging in a severe low-temperature environment is solved.

The invention relates to the technical field of safety rope processing, and discloses a quantitative cutting machine for safety rope processing and manufacturing, which comprises a workbench, a support shaft, a cutting mechanism, a transverse moving mechanism, an end clamping mechanism, an auxiliary blanking mechanism and a material receiving box, the support shaft is rotatably connected to the right end of the workbench, and a plurality of bosses are fixed on the support shaft; an anti-skid rubber sleeve is fixed to the outer side of the boss, the cutting mechanism is located on the left side of the supporting shaft and installed on the workbench, the end clamping mechanism is located on the left side of the cutting mechanism and connected with the transverse moving mechanism, and the transverse moving mechanism is installed on the workbench. Synchronous cutting of multiple safety ropes can be achieved through multiple bosses of the supporting shaft, multiple through grooves of the cutting mechanism and multiple positioning grooves of the end clamping mechanism, and efficiency is improved; the cutting length is accurately controlled by a laser distance measuring sensor and a PLC (Programmable Logic Controller); and after cutting, the end clamping mechanism loosens the rope, a pressing plate of the auxiliary discharging mechanism presses the rope downwards, and the rope falls into a collecting box through a discharging groove, so that materials are automatically collected, and manual operation is reduced.

The invention discloses a laser sensor welding seam tracking method, and relates to the technical field of welding seam tracking, and the method comprises the following steps: S1, point position adjustment: enabling the measurement range of a laser ranging module to cover a to-be-measured welding seam area by adjusting the point position of a welding robot; and S2, measuring the Z-direction distance of the welding seam, emitting a laser pulse through a laser ranging module, receiving light reflected from the surface of the welding seam, and calculating the Z-direction distance of the welding seam based on the round-trip time of the laser pulse. A two-dimensional contour image of a welding seam is converted into a three-dimensional welding seam contour model, through an image processing and pattern recognition algorithm, the specific position and shape of the welding seam are extracted to accurately recognize the welding seam, high-precision positioning and dynamic tracking of the welding seam are achieved, it is ensured that a welding seam path is located in an optimal measurement area all the time, and the leakage detection risk is reduced.

The utility model provides a calibration device, which is used for calibrating a base of laser annealing equipment, and mainly comprises at least three laser range finders, the laser range finders are arranged above the base, the at least three laser range finders are located at the same horizontal height and are not collinear, and the laser range finders are used for measuring the vertical distance between the laser range finders and the base; the plurality of adjusters are arranged on the edge of the base, and the adjusters are used for adjusting the levelness of the base; and the controller is electrically connected with the laser range finders and the plurality of adjusters respectively, and the controller controls the plurality of adjusters to adjust the levelness of the base based on the at least three vertical distances measured by the at least three laser range finders. The levelness of the base can be monitored in real time based on the laser range finder no matter whether the laser annealing equipment is executing the laser annealing process or not, the levelness of the base is adjusted in real time through the adjuster, the adjusting time of the levelness of the base can be shortened, and the adjusting efficiency can be improved.

The invention discloses ground penetrating radar equipment based on an all-wheel-drive unmanned aerial vehicle and an underground geological three-dimensional map construction method, and relates to the technical field of three-dimensional map construction. The invention aims to solve the problems of terrain information perception distortion, difficulty in constructing a three-dimensional geologic model which is fused with terrain information and has space authenticity and the like caused by vehicle bumping and inclination in the prior art of integrating a ground penetrating radar into an intelligent unmanned vehicle platform for underground detection. According to the integrated structure design of the all-wheel-drive unmanned aerial vehicle integrated ground penetrating radar, the attitude of the whole unmanned aerial vehicle is kept stable when the unmanned aerial vehicle carries the radar for flight operation, data loss and noise introduction caused by attitude jitter of the unmanned aerial vehicle in the radar acquisition process are reduced, and a data foundation is laid for subsequent accurate three-dimensional geological map construction. According to the multi-sensor fusion method, the absolute precision of RTK, the high resolution of laser ranging and the dynamic response characteristic of an accelerometer are fully utilized, and the centimeter-level absolute position of the unmanned aerial vehicle, the height of the unmanned aerial vehicle to the ground and the absolute altitude of the ground surface below a scanning point are obtained. According to the invention, decoupling control of six degrees of freedom corresponding to the full-drive unmanned aerial vehicle is realized, so that the unmanned aerial vehicle can fly close to the rugged topography, and automatic and full-coverage scanning path flight is carried out with a constant ground clearance and a stable attitude.

The invention discloses a single-photon non-vision-field target tracking system based on an unmanned aerial vehicle platform, which belongs to the field of non-vision-field imaging and is characterized in that a laser is connected with a scanning galvanometer assembly through a first nanosecond optical path switch and an optical fiber circulator to form an emission optical path for emitting laser pulses to relay reflecting surfaces corresponding to four predetermined positioning points; the scanning galvanometer assembly is connected with the photon detector through the collimating optical fiber, the optical fiber circulator and the second nanosecond optical path switch to form a receiving optical path capable of receiving echo photons; the main control module is electrically connected with the laser, the first nanosecond light path switch, the second nanosecond light path switch, the scanning galvanometer assembly, the photon detector, the time-to-digital converter and the high-frequency inertial measurement unit respectively, and can control each component to perform laser ranging, double-window gating, single-photon detection, inertial measurement unit sampling and timing according to a unified time sequence; and the three-dimensional coordinates of the current non-vision target are calculated by using the distance measurement data through an ellipsoid intersection solution method, so that non-vision target tracking is realized.

The invention provides a railway bridge line beam eccentricity measuring method, which at least comprises the following steps of: acquiring position information of a bridge guardrail by adopting a radar module, and adjusting the height position of a laser ranging module according to the position information, so that the laser ranging module can detect the bridge guardrail for ranging; the laser ranging module is adopted to measure the distances between the first steel rail and the bridge guardrails on the two sides of the first steel rail at the same time, and the eccentric distance is calculated according to the distance parameters measured by the laser ranging module and the track gauge of the track. The invention provides a device for measuring the eccentricity of the railway bridge line beam. The measuring device is applied to the method for measuring the eccentricity of the railway bridge line beam. The method has the beneficial effect that the eccentric distance along the track can be automatically and continuously measured.

The invention discloses an ultra-wide thin-wall tunnel roof deformation monitoring device based on laser ranging, and relates to the technical field of laser measurement, the ultra-wide thin-wall tunnel roof deformation monitoring device comprises an industrial camera and a mounting seat, a laser is fixedly mounted on the mounting seat, a mounting bracket is mounted at the bottom of the mounting seat, and a protective shell is fixedly mounted on the mounting seat. A light beam collimator is fixedly installed on the laser device, and a beam splitting assembly is fixedly installed in the protective shell and used for equally dividing a light source emitted by the laser device into two laser beams. The tunnel section deformation monitoring method has the advantages that high-precision and high-efficiency deformation monitoring can be performed on the tunnel section, the problems of time desynchrony and optical distortion existing in a traditional method are effectively solved, and meanwhile, the adaptability and data reliability in a severe environment are remarkably improved; and reliable technical means and equipment support are provided for structural health assessment of the ultra-wide thin-wall tunnel top arch.

The utility model discloses quick express sorting and conveying equipment, and particularly relates to the technical field of express sorting, which comprises a conveying frame, a conveying belt mounted on the conveying frame, a fixing frame mounted on the conveying frame, a laser range finder mounted on the fixing frame, a support frame arranged at one end of the conveying frame, and a transverse conveying mechanism mounted on the support frame. A lifting mechanism is installed on the supporting frame, a longitudinal conveying mechanism is installed on the lifting mechanism, and the supporting frame is connected with a first discharging plate, a second discharging plate and a third discharging plate. The height of the express parcels on the conveying belt is detected through the laser range finder, the express parcels are classified according to the height, the lifting mechanism and the transverse or longitudinal conveying mechanism work cooperatively, and the express parcels are conveyed to the corresponding discharging plates to be sorted. The automatic sorting device realizes automatic sorting of express items according to height, has the advantages of improving sorting efficiency, reducing labor cost, being accurate in sorting and the like, and effectively solves the problems of low efficiency and high labor cost of a traditional sorting mode.

A laser target localization method and an implementation apparatus therefor, and a tunnel deformation monitoring method. The laser target localization method comprises: providing in a spaced manner a laser ranging module (31) and a target on an object to be subjected to detection (S1); the laser ranging module (31) projecting an emergent laser onto the target (S2); establishing a sampling point coordinate system by using a projection point of the emergent laser as the coordinate origin (S3); making the projection point of the emergent laser move in a spiral line around the coordinate origin in the sampling point coordinate system, and collecting real-time coordinate values of all sampling points (100) in the sampling point coordinate system, and real-time intensity values of reflected light of the emergent laser at the positions of all the sampling points (100) (S4); and after the spiral-line movement ends, determining the region of the target on the basis of the real-time intensity values of the reflected light at the positions of all the sampling points (100), and on the basis of the coordinate values of all the sampling points (100) in the region of the target, determining the central point of the target (S5).

The invention relates to the technical field of pipe network leakage point positioning, and discloses a GIS-based pipe network leakage point high-precision positioning method and system, and the method comprises the steps: collecting a first camera image, a first infrared thermogram, first laser ranging data and first inertial measurement data through a detection robot; calculating a robot positioning track and constructing a pipeline structure model; detecting local coordinates of leakage points and creating a coded data packet; based on the first RTK-GPS coordinate of the initial inspection well, rotation transformation and ENU coordinate transformation are carried out on the local coordinate of the leakage point, drift correction is carried out when the leakage point arrives at the next inspection well, and the GIS coordinate of the leakage point is obtained; according to the method, the GIS coordinates and the coded data packets of the leakage points are used for generating a defect distribution visualization graph and a maintenance work order, the positioning error is reduced from the meter level to the centimeter level, accurate positioning of defects and automatic distribution of the maintenance work order are achieved, and the inspection cycle and the maintenance response time are shortened.

The invention provides a device and method for adjusting and verifying the machining pose of a workpiece, and belongs to the technical field of machining. The device comprises a workpiece clamping module, a three-dimensional scanning module, a film pasting module, a laser marking module, an industrial camera module, a laser ranging module, a calculation solving module and a communication module; the calculation and solution module is connected with the scanning module, the industrial camera module and the laser ranging module, and the calculation and solution module is in communication connection with a numerical control system of a machine tool through the communication module; the method has the advantages that the precise self-adaptive adjustment of the workpiece pose and the verification of the machining path are realized, and the reliability of precision machining is improved.

The invention relates to the technical field of laser ranging, in particular to a novel railway tunnel deformation real-time surveying and mapping system based on a three-dimensional scanning technology, which comprises a laser sampling module, an echo evaluation module, a space repositioning module, a residual evolution module and a deformation surveying and mapping module. According to the method, after continuous distance information of a target position is obtained, measuring point sequence data is constructed based on a time sequence, a signal abnormal area is recognized through echo intensity fluctuation, the signal abnormal area is further converted into a space coordinate structure, track differences are extracted, vector data are generated, deviation characteristics are analyzed in combination with the tunnel space position, and the deformation amplitude is quantified. Compared with a periodic observation mode depending on manual distribution of measuring points, the method has the advantages that fine coordinate difference data can be continuously output, the deformation monitoring frequency and the space coverage range can be improved, manual interference errors can be reduced, and the dynamic mastering capability of the tunnel structure evolution process can be enhanced.

The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle hoisting system and device.The unmanned aerial vehicle hoisting system comprises an unmanned aerial vehicle and a hoisting device, the hoisting device is provided with a rope assembly, a fusing unit, an unhooking mechanism, a weighing module, a swing detection module, an environment sensing module and a control circuit board; a coupling dynamic model is constructed based on the data, a control instruction is generated to cooperatively control the flight of the unmanned aerial vehicle and the hoisting device, predictive anti-swing control is performed by using wind speed sensor data, cable path obstacle avoidance is performed through a miniature laser radar or a depth camera, and a fusing unit is triggered to perform emergency processing according to judgment. And a distributed force sensor array is used for sensing the gravity center of the load so as to maintain flight balance, precise unloading is achieved through a high-precision millimeter wave radar or a flight time laser distance measuring sensor, and the insulation state of the hoisting cable is monitored in real time.

The invention relates to a steel pipe port oblique cutting size measuring device and method, and the device comprises a rotating mechanism which is disposed at the bottom of a steel pipe and is used for supporting and rotating the steel pipe; the ruler abuts against the highest end point and the lowest end point of the to-be-measured port of the steel pipe; the stand column is arranged relative to the to-be-measured port, a certain distance is kept between the stand column and the to-be-measured port, the axis of the stand column is perpendicular to the horizontal plane, two laser distance measuring sensors are arranged on a column body of the stand column in a spaced mode, and the distance between the two laser distance measuring sensors is equal to the diameter of a steel pipe; the laser distance measuring sensor is used for measuring the distance between the laser distance measuring sensor and the ruler. According to the invention, the influence caused by the out-of-level axial lead of the steel pipe can be directly neglected, the oblique cutting size of the to-be-measured port of the steel pipe can be accurately measured, and the operation is convenient and simple.

This invention discloses a laser ranging-based method for positioning and correcting steel pipe welding, belonging to the field of steel pipe welding. The method includes: clamping and displacing the steel pipe to be welded to an automated welding unit using a robotic arm; acquiring an image of the steel pipe to be welded and locating the welding start point; activating a target laser rangefinder to spatially locate the welding start point and obtain welding position parameters; obtaining the welding torch position parameters of the welding robot; analyzing and generating the welding torch displacement trajectory; correcting the welding trajectory to obtain the welding movement path; and jointly controlling the welding robot to complete automated welding. This application solves the technical problems of insufficient positioning accuracy, difficulty in adapting to different entry angles, and weld seam offset caused by deformation during welding in existing technologies. It achieves the technical effects of improving the positioning accuracy of steel pipe welding, realizing automatic tracking welding of steel pipes entering at any angle, and real-time correction of the weld seam position during welding.

A concrete surface processing machine (100) for processing a concrete surface, wherein the concrete surface processing machine is arranged to be supported on the concrete surface by one or more support elements (150) extending in a base plane (101) of the machine parallel to the concrete surface, wherein the concrete surface processing machine is arranged to rotate (R) about an axis (C) normal to the base plane (101) by the one or more support elements (150), wherein the concrete surface processing machine comprises control unit (110) connected to at least one laser range finder (120) arranged pointing in a fixed direction from the concrete surface processing machine, and wherein the control unit (110) is arranged to determine a boundary geometry of the concrete surface based on a sequence of ranges obtained by the laser range finder (120).

The invention relates to the field of civil engineering automatic monitoring, and discloses a method for measuring cast-in-situ bored pile center deviation based on a three-point circle method.The method comprises the steps that the initial pose of an integrated frame installed on the pile top is accurately calculated through external equipment such as a total station, an internal tilt angle sensor is calibrated, and during real-time monitoring, the initial pose of the integrated frame is accurately calculated; the three-point coordinates on the contour of the circular target object are obtained through the three non-collinear laser distance measuring sensors in the frame, the relative position vector of the center of the circular target object relative to the frame is solved in real time through the three-point circle method, attitude compensation operation is conducted on the relative position vector, the attitude compensation is converted into a global coordinate system, and finally the attitude compensation is conducted through the initial translation vector. The real-time absolute coordinates of the target object are synthesized, and high-precision deviation monitoring is achieved. According to the method, initial calibration and real-time compensation are combined, errors caused by inclination of a monitoring reference are effectively eliminated, and the real-time performance, the automation degree and the data reliability of pile foundation construction deviation monitoring are improved.

The invention relates to the field of railway shunting management and control, and provides a field intelligent shunting management and control method and device.The method comprises the steps that field real-time information is obtained, and the field real-time information comprises a vehicle license plate picture, laser ranging information and an original signal collected by a track circuit; the field section real-time information is recognized, modeling information is obtained, and the modeling information comprises vehicle identity information, vehicle position coordinates and real-time station track occupancy states; establishing a digital twinborn model according to the modeling information; performing dynamic planning algorithm processing according to the digital twinborn model in combination with preset vehicle target distribution, station track capacity limitation and locomotive performance parameters to obtain a shunting coupler plan; the turnout position is adjusted to the preset angle according to the shunting coupler plan, the overall efficiency of shunting operation and the accuracy of the plan can be remarkably improved, and the safety and reliability of the operation process are effectively enhanced.

The invention discloses an unmanned aerial vehicle insulator zero-value acousto-optic detection method and an unmanned aerial vehicle insulator zero-value acousto-optic detection device, relates to the technical field of insulator detection, and solves the problems of poor detection safety, low efficiency and insufficient precision in the prior art. Establishing a coordinate system to generate flight control parameters to realize precise hovering; based on the distance vector, the rotatable multi-frequency coil group generates a spatial modulation electromagnetic field; the high-voltage testing device applies a cooperative modulation detection voltage according to electromagnetic field parameters to realize synchronous modulation of the two; the audio-video transmission device collects sound and light signals, and features are obtained through space-time fusion after distance attenuation compensation; constructing an evaluation model containing environment correction, and judging a zero value by taking 0.8 as a threshold value; according to the method, closed-loop detection is formed, the detection precision and efficiency are improved, and operation safety is guaranteed.

The invention relates to the technical field of optical three-dimensional measurement and metering, and discloses a single-camera three-dimensional coordinate measurement method and system based on full-field distance measurement, and the method comprises the following steps: S1, building a calibration field containing a control point, shooting an image of the calibration field through a monocular camera, extracting the image coordinate of the control point, carrying out the camera calibration, and obtaining a calibration field; obtaining internal parameters and external orientation parameters of the camera; and S2, controlling the laser range finder to aim at the control point in the calibration field through the non-orthogonal double-axis turntable. Submillimeter-level high-precision measurement can still be realized under the condition of a short baseline, and the problems that the precision in the depth direction is insufficient, the baseline requirement is long, parameters are easy to drift and the like in traditional stereoscopic vision measurement are effectively solved. By introducing a non-orthogonal double-shaft turntable and a visual guidance laser aiming mechanism, autonomous, rapid and accurate measurement of multiple measurement points in a large field of view is realized, and the automation degree and reliability of measurement in a complex environment are remarkably improved.

The invention relates to a target tracking optimization method and system based on image recognition laser ranging. According to the method, when the intensity of a signal returned by laser ranging operation is lower than a preset threshold value, a candidate target is determined as a non-target and a non-target mark is added, and in subsequent image processing, when a candidate target associated with the non-target mark is identified again, the identification confidence of the candidate target is reduced, so that the identification confidence is lower than a threshold value for triggering ranging. According to the method and the system, repeated laser ranging operation on a non-target object can be avoided, so that unnecessary computing resource consumption is reduced, the efficiency and the accuracy of the system for tracking a real target are improved, particularly, tracking interruption can be effectively avoided when the target moves highly dynamically, and the robustness and the reliability of the system are improved.