53 results about "Horizontal angle" patented technology

This invention provides a portable surveying device for water conservancy projects, relating to the field of water conservancy engineering surveying technology. It includes a support frame; a motor A is fixedly installed at the upper part of the support frame, with the top of the motor A's shaft fixedly connected to the bottom of a gear assembly. An angle disk is fixedly installed at the top of the gear assembly. Motor B, in conjunction with the gear assembly, enables electric micro-adjustment of the horizontal angle. Combined with the angle disk and indicator frame, the angle value can be read intuitively, achieving high adjustment accuracy. When the slider is centered, the angle disk automatically returns to zero, quickly establishing a surveying benchmark and improving angle adjustment efficiency. This invention solves the problems of existing water conservancy surveying devices, which mostly rely on manual adjustment of the horizontal angle, resulting in low adjustment efficiency, poor positioning accuracy, and a lack of automatic zeroing and precise angle locking structures, making it difficult to meet the high-precision surveying requirements of water conservancy projects.

This invention discloses an automatic leveling geographic surveying instrument, belonging to the field of geographic surveying technology. The invention first acquires the tilt angle and tilt angle change rate of the total station base in real time, dividing station settlement into three stages: micro-settlement, significant settlement, and sudden settlement. For the micro-settlement stage, real-time error compensation is achieved through elevation correction of the line-of-sight height-time fitting curve and vertical axis tilt horizontal angle correction. For the significant settlement stage, high-precision automatic leveling based on a kinematic model, physical compensation for the three-dimensional displacement of the instrument center, and orientation reset are executed sequentially. For the sudden settlement stage, shutdown alarm and abnormal data marking are implemented. This invention also includes surveying instrument hardware with electrically telescopic outriggers and a multi-sensor system, adaptable to surveying operations in complex geological conditions, balancing measurement accuracy, operational continuity, equipment safety, and data utilization.

This invention discloses a self-correction control method for errors in a three-dimensional lidar device for foundation pit marking in power transmission lines, relating to the field of power transmission line construction technology. The invention is implemented through the following steps: First, based on a Cartesian coordinate system, the distance, horizontal angle, and vertical angle from the three-dimensional lidar device to the target point are defined to determine the initial coordinates of the target point. Second, reference control points are selected, noise and gross errors are removed, vertical offsets are corrected, and point cloud data is refined. Next, errors in the X, Y, and Z axes are defined, and an error correction model is established. Finally, self-correction of the target coordinates is performed based on the observed values ​​and the error correction model, and correction is achieved through an environmental feature-adaptive error weight allocation mechanism. This invention uses a multi-level data verification mechanism for closed-loop iterative optimization to ensure measurement accuracy, improve operational efficiency, enhance environmental adaptability, and is suitable for foundation pit marking operations in complex terrain.

Provided in the present application are an antenna, a communication device and a communication system. The antenna comprises a radome, a reflector plate and an adjustment device. The reflector plate and the adjustment device are arranged inside the radome to prevent impurities such as dust and moisture from damaging the adjustment device, thereby improving the reliability and stability of the adjustment device. The reflector plate is provided with a radiation unit array; and the adjustment device comprises a driving mechanism and a transmission mechanism, the transmission mechanism being connected between the driving mechanism and the reflector plate, the driving mechanism driving, by means of the transmission mechanism, the reflector plate to rotate around a first direction and a second direction, the first direction being perpendicular to the second direction, and the first direction and the second direction being respectively parallel to the reflector plate. The adjustment device adjusts the reflector plate to rotate around the first direction relative to the radome, thereby achieving the adjustment of the pitch angle of a radiation beam. The adjustment device adjusts the reflector plate to rotate around the second direction relative to the radome, thereby achieving the adjustment of the horizontal angle of the radiation beam emitted by the radiation unit array.

The application provides a resistivity-based apparent resistivity correction method, system, medium and equipment, and relates to the technical field of electric field detection. The technical scheme provided by the application generates an in-group control scheme by matching a preset optimization target corresponding to an attribute label, adjusts a target control scheme according to inter-group influencing factors, and can adaptively adjust a measurement strategy according to geological characteristics. After collecting a vector receiving voltage, the initial apparent resistivity is vector synthesized according to a horizontal angle to obtain a target apparent resistivity, effectively solving the problem that a single component signal is weak and susceptible to noise interference in the traditional resistivity method. When a certain direction component signal is particularly weak or abnormal, the vector synthesis mechanism can avoid the appearance of negative apparent resistivity, improving data stability. The improvement of the final input data quality and the full use of vector information significantly improve the convergence of the inversion algorithm and the stability of the solution, can perform vector synthesis on the component signal, and improve the inversion effect of the resistivity method.

The invention discloses a speed-up railway precision conductor construction method with virtual control points added, which comprises the following steps: S1, arranging conductor points in a staggered manner along two sides of the advancing direction of a speed-up railway line, and arranging the virtual control points between the adjacent conductor points; s2, arranging total stations on each traverse point one by one, and arranging prisms on two front and back adjacent traverse points and adjacent virtual control points; observing each prism by using a total station to obtain a horizontal direction, a slant distance and a vertical angle from the center of the total station to the center of each prism; s3, performing gross error detection analysis on the observation values, and rejecting the detected gross error observation values or re-measuring the observation stations where the gross error observation values are located; and S4, establishing an acceleration railway conductor control network with virtual control points by using all reliable horizontal angles and horizontal distances. According to the method provided by the invention, on the premise of not increasing the burying cost of the control points, on the basis of the connecting wires, only several temporary target points are observed by each observation station, so that the effect of remarkably improving the precision and reliability of the control network is achieved.

The application discloses a multi-scene robust Bluetooth AOA indoor positioning method, which comprises the following steps: obtaining the IQ value of each antenna array element; solving the phase of each antenna array element; performing eigenvalue decomposition on the covariance of the antenna array phase to obtain a signal space and a noise space; calculating the horizontal angle and the pitch angle that make the spatial spectrum P MUsIC The horizontal angle and the pitch angle that make the spatial spectrum P The application can improve the robustness of the angle, thereby improving the positioning precision.

The invention discloses a radar signal processing method, a filtering method, a filtering circuit, a radar signal processing device, an integrated circuit and an electromagnetic wave sensor. The radar signal processing method comprises the steps that after FIR filtering is carried out on a to-be-processed signal, DFT operation is carried out to acquire target characteristic parameter data; the target characteristic parameters comprise at least one of a distance, a speed, a horizontal angle and a pitch angle; wherein the FIR filtering is configured to suppress at least one of a truncation effect and a frequency leakage existing in the DFT operation.

The utility model discloses an angle-adjustable radar wave velocity measurement device, which comprises a radar wave velocity meter, a positioning assembly and an aluminum plate, the lower end of the aluminum plate is fixedly connected with two mounting plates, a main shaft is rotatably connected between the two mounting plates, one end of the main shaft is fixedly provided with a bracket, and the main shaft is provided with a horizontal adjusting mechanism for adjusting the horizontal angle of the bracket. One end of the support is rotationally connected with a shell, a pitching adjusting motor is installed in the shell, the radar wave current meter and the positioning assembly are installed in the shell, and the aluminum plate is provided with a plurality of fixing assemblies used for being connected with a cableway. According to the utility model, the horizontal angle and the pitching angle of the radar wave flow velocity meter can be adjusted in real time according to the change of the water level, so that the radar wave beam and a lead fish monitoring point can be positioned on the same vertical line, the water flow velocities at different water depths are compared, and the monitoring precision of the water flow velocity is improved.

The utility model relates to the field of surveying and mapping equipment, and discloses high-voltage line migration and transformation intelligent auxiliary surveying and mapping equipment which comprises a supporting frame, a connecting groove is formed in the top of the supporting frame, a rotating ball is rotatably mounted on the inner wall of the connecting groove, a mounting frame is fixedly connected to the top of the rotating ball, and a total station body is fixedly mounted at the top of the mounting frame; a pull rod is fixedly connected to the bottom end of the rotating bead, a hook is clamped to the surface of the pull rod, a vertical frame is fixedly installed at the bottom end of the hook, and the size specification of the surface of the rotating bead is matched with the size specification of the inner wall of the connecting groove. The rotating ball is connected with the connecting groove in the mounting frame, the pull rod is mounted at the bottom end of the rotating ball, and the vertical frame is mounted at the bottom end of the pull rod through the hook, so that surrounding stones can be conveniently placed in the vertical frame, and the mounting frame at the top of the rotating ball is kept at a horizontal angle by dint of the drooping force of the vertical frame; therefore, the horizontal angle of the total station body can be conveniently adjusted.

The application discloses an artificial corner reflector for synthetic aperture radar interferometry calibration, and relates to the technical field of measurement and monitoring, and solves the technical problem that an existing corner reflector is not easy to adjust the angle after being fixed, and the technical scheme is as follows: the corner reflector comprises a corner reflecting plate, a vertical angle control device and a horizontal angle control device, the vertical angle control device has a movable part, the movable part of the vertical angle control device is connected with the corner reflecting plate, and is used for controlling the rotation angle of the corner reflecting plate in the vertical direction; the horizontal angle control device has a rotating part, the rotating part of the horizontal angle control device is connected with the vertical angle control device, and is used for controlling the rotation angle of the vertical angle control device in the horizontal direction, so as to control the rotation angle of the corner reflecting plate in the horizontal direction. The application can easily and accurately adjust the angles of the corner reflector in the horizontal and vertical directions, so as to satisfy the incidence of different satellite radar waves.

The utility model discloses a heat sights support integrated in the bow body, including the crossbar and the bow body, the crossbar detachable fixed in the bow body one side, the crossbar is installed the rotary adjustment of vertical direction's adapter block, the adapter block is installed the rotary adjustment of horizontal direction's fixed block, the fixed block is installed the display, the utility model discloses, the adapter block can realize the adjustment of the pitch angle relative to the crossbar, the adapter block can realize the adjustment of the horizontal angle relative to the fixed block, and then realize the adjustment of display angle, the support of the application is directly attached on the bow body, and the structure is small and exquisite, more portable.

The invention discloses an arch dam valley amplitude measuring method, device and system and a storage medium. The method comprises the following steps: acquiring meteorological data of a plurality of datum points, an instrument placement point, a highest elevation point and a lowest elevation point, and acquiring elevation information and measured values of a plurality of valley amplitude endpoints, including slant distances, vertical angles and horizontal angles; based on the meteorological data of the highest elevation point and the lowest elevation point and the elevation information of the valley amplitude endpoint, carrying out inversion to obtain meteorological data at the valley amplitude endpoint; constructing an error correction model representing a mapping relation between the meteorological data and the measurement error value by adopting a data-driven error modeling algorithm, and correcting the measurement value of the valley amplitude endpoint based on the error correction model to obtain a corrected measurement value; calculating a valley amplitude length based on the corrected measurement value; according to the invention, the manpower and instrument use cost for measuring the valley amplitude of the high arch dam is obviously reduced, and the measurement precision and the engineering applicability are improved.

The application discloses an arch dam valley width measurement method, device, system and storage medium. The method comprises the following steps: acquiring meteorological data of a plurality of reference points, instrument installation points, elevation highest points and elevation lowest points, acquiring elevation information and measurement values of a plurality of valley width endpoints, including slant distance, vertical angle and horizontal angle; based on the meteorological data of the elevation highest points and the elevation lowest points and the elevation information of the valley width endpoints, meteorological data at the valley width endpoints is obtained by inversion; an error correction model representing the mapping relationship between the meteorological data and the measurement error values is constructed by using a data-driven error modeling algorithm, the measurement values of the valley width endpoints are corrected based on the error correction model, and corrected measurement values are obtained; and the valley width length is calculated based on the corrected measurement values. The application significantly reduces the labor and instrument use cost of high arch dam valley width measurement, and improves the measurement precision and engineering applicability.

The invention discloses a static target deformation monitoring and power failure self-recovery method based on a 4D millimeter wave radar, and relates to the technical field of radar signal processing and intelligent monitoring, and the method comprises the steps: carrying out the automatic recognition and locking of a preset static corner reflector through a movable dynamic auxiliary corner reflector, extracting four-dimensional characteristic parameters of the distance, the horizontal angle, the pitching angle and the relative speed; the parameters are used as calibration reference points to be issued to the 4D millimeter wave radar, and the parameters are written into a nonvolatile storage unit after high computing power matching is completed in a local search space; continuously collecting multi-frame point cloud data, screening neighborhood strong reflection points, and obtaining a combined distance value through median filtering; calculating the cumulative variable quantity of the current high-precision distance value relative to the initial calibration value by combining a super-resolution distance measurement algorithm to obtain a submillimeter-level deformation quantity DEF; and after the system is restarted after power failure, automatically loading the calibration parameters from the nonvolatile storage unit, re-matching the activated target and recovering real-time monitoring.

The invention concerns a system (10) of a package (2) containing a product and an apparatus (1) using said product, the apparatus being refilled by the product contained in the package, wherein a code (21) related to the contained product is associated to the package, said code being a two dimension code and said code presenting a predetermined surface Scode, and wherein the apparatus comprises a code reader (11) to read the code associated to the package, said code reader being an image capturing device, said image capturing device being defined by : - a predetermined focal range, - a horizontal angle of view <semantics>α<annotation encoding="application / x-tex">\alpha< / annotation>< / semantics> and a vertical angle of view <semantics>β<annotation encoding="application / x-tex">\beta< / annotation>< / semantics>, wherein the apparatus comprises a housing structure (16) and a cavity (12) inside the housing structure, wherein the image capturing device is positioned at the back side of the cavity.

This invention belongs to the field of projector parameter calibration technology, specifically disclosing a projector parameter calibration method and projector based on multiple distances. First, the intrinsic and extrinsic parameters of the projector's optical engine and camera are calibrated at multiple different distances, obtaining calibration results at multiple distances. This allows for the fusion of calibration parameters from multiple distances to calculate the horizontal angle during actual keystone correction angle calculations, resulting in a more accurate fused horizontal angle. By fusing calibration parameters from multiple distances to calculate the calibration result at the current distance, this invention achieves adaptive calibration of the projector and camera's intrinsic and extrinsic parameters at different distances, improving the accuracy of calibration at different distances and resulting in more accurate horizontal angles and more precise keystone correction.

The invention relates to a pipe jacking construction monitoring method, and belongs to the technical field of pipe jacking construction. The method comprises the following steps: establishing a measurement control network in a measurement area; measuring targets are arranged on the inner wall of the jacking pipe; arranging a scanner; the scanner measures the horizontal angles and the vertical angles of the points by observing a plurality of targets with known coordinates, and the three-dimensional coordinates of the scanner are calculated through the resection principle and the least square method; calculating a three-dimensional coordinate of a newly arranged target by measuring a horizontal angle, a vertical angle and a laser ranging value of an unknown target; acquiring mass point cloud data on the surface of the pipe body in a view field range; synchronously controlling a plurality of scanners to work at the same time through an optical fiber instruction, and splicing scanning data of each station by using target coordinates which are calculated previously and are uniformly in a measurement control network coordinate system to obtain a three-dimensional model of a pipe-jacking pipe body; and the posture of the pipe jacking machine is determined by comparing the actual scanning value with the design value. By means of the scheme, it can be ensured that pipe jacking construction reaches the standard.

This invention belongs to the field of monitoring equipment technology. Given the inability to guarantee the accuracy of existing lidar monitoring, this invention discloses a lidar-based monitoring device and calibration method. It acquires an image of a target object using a camera and determines whether the object's size is greater than or less than a preset threshold. If the object's size is found to be greater than or less than the preset threshold, the elevation and horizontal angle installation errors of the lidar are calculated and obtained, and the lidar is adjusted based on these errors. This reduces data processing complexity and improves monitoring accuracy.

The invention relates to the technical field of mechanical detection and assembly, and particularly discloses a cylindrical part center position detection and adjustment method, which comprises a detection device, an adjustment device, a control device and an objective table fixed at the top of the adjustment device and used for placing a cylindrical part, and the control device is electrically connected with the detection device and the adjustment device; the adjusting device can adjust the position of the objective table in the width direction and the height direction of the cylindrical part, and the adjusting device can further adjust the horizontal angle and the vertical angle of the objective table. The detection device comprises a moving assembly, a laser distance sensor and a probe type distance sensor, wherein the laser distance sensor and the probe type distance sensor are connected with the moving assembly, and the moving assembly can drive the laser distance sensor and the probe type distance sensor to move. According to the invention, the accuracy of the detection result and the assembly precision can be improved.

The utility model provides a kind of sonar probe fixing device, it is related to sonar detection technical field, including mounting bracket, connecting piece, ring, connecting rod and support;Mounting bracket is detachably connected on ship body or ship body connecting frame;Connecting piece is rotatably installed on mounting bracket and along first plane rotates, connecting piece is equipped with locking structure, locking structure can be locked with mounting bracket at specified angle;Ring is fixedly connected with connecting piece;Connecting rod is slidably installed in ring, and can be locked with ring at specified length position;Connecting rod can rotate around ring in second plane, and second plane is perpendicular to first plane;Support is fixedly installed in the radial direction of connecting rod on one end of connecting rod, and sonar probe is fixedly installed on support.Through above structure, the cooperative control of depth, horizontal angle and pitch angle can be realized, and it is firm, avoids the distortion of detection data caused by water flow impact.

The utility model discloses a convenient-to-operate angle adjusting device for stage sound equipment, and relates to the technical field of stage props. The device comprises a supporting plate, four supporting screws are fixedly installed at the top of the supporting plate, the outer walls of the four supporting screws are sleeved with the same top plate in a sliding mode, the outer walls of the four supporting screws are all in threaded connection with nuts, the multiple nuts are all located above the top plate, and the supporting plate is matched with the top plate. According to the utility model, through cooperation of the support plate, the top plate and the support screw and nut, stable clamping and rapid disassembly and assembly of the sound equipment main body are realized; wherein the buffer pad reduces the vibration influence and improves the tone quality; the inclination assembly accurately adjusts the pitching angle of the supporting plate to meet various performance requirements; the lifting rotating assembly is driven by combining a worm and gear and a motor gear, convenient and accurate adjustment of the height and the horizontal angle of the sound box is achieved, operation is easy and convenient, adjustment is accurate, stability is high, and the diversified requirements of stage performance are met.

The invention relates to the field of automatic driving, and discloses a pitch angle dynamic calibration method, which comprises the following steps of: acquiring N point cloud distances, horizontal angles and pitch angle information; calculating to obtain N point cloud coordinates; the pitch angle installation errors pitch in the x direction and the z direction are calculated according to the following formula, and the pitch angle is dynamically calibrated according to the pitch angle installation errors. According to the dynamic calibration scheme for the pitch angle based on the least square method, the pitch installation angle error of the radar can be accurately calibrated by screening effective point cloud information and utilizing the least square principle, and the scheme can be used for after-sales calibration and can also be used for real-time dynamic calibration. And good performance advantages are shown.

The invention relates to the field of iron tower monitoring, in particular to an iron tower perpendicularity deviation obtaining method, device and equipment based on camera shooting. The method comprises the following steps: acquiring horizontal angles of a first node, a second node, a third node and a fourth node measured by the theodolite at a first measurement point and vertical angles of the first node and the second node; the first node and the second node are two angle steel outer side line connecting points located at the height A of the iron tower and located at the opposite angles A; the third node and the fourth node are positioned at the height B of the iron tower and are positioned at the connecting point of outer side lines of two angle steels at opposite angles A; the height B is lower than the height A; acquiring data repeatedly measured by the theodolite at the second measuring point; a 90-degree included angle is formed between the connecting line between the second measuring point and the tower top of the iron tower and the connecting line between the first measuring point and the tower top of the iron tower, and the iron tower perpendicularity deviation is calculated based on a perpendicularity deviation calculation formula. According to the method, marking points do not need to be arranged, and the iron tower perpendicularity deviation can be safely, efficiently and accurately obtained.

The invention discloses a method for measuring the lowest point elevation of the section of a lower chord of a steel truss. The method comprises the following steps: S1, determining the measurement section of a to-be-measured rod piece; s2, erecting the total station on the ground right below the to-be-measured lower chord, wherein the distance L between the total station and the horizontal projection of the to-be-measured cross section meets the following relation: L = k (H-i) (1.2 < = k < = 2.8); s3, the vertical angle of a telescope of the total station is fixed, the laser indication point is located at the rightmost end of the cross section of the rod piece, and the horizontal angle alpha start is recorded; the laser indication point is located at the leftmost end of the cross section of the rod piece, and the horizontal angle alpha end is recorded; calculating a horizontal angle span; s4, the horizontal angle interval [alpha start, alpha end] is equally divided into n parts; s5, sequentially measuring the elevation Hk of each measuring point according to the horizontal angle sequence alpha k of the measuring points; s6, positioning an elevation minimum measuring point index kmin, wherein Hkmin = min (Hk); and calculating a theoretical lowest point elevation Hmin by adopting a three-point quadratic interpolation formula.

The application provides a kind of ship dock approach waterway inner wall positioning measuring device and method, device includes: handheld shell, it has: infrared light multi-point measuring unit (1) on it, it includes a plurality of ranging sensors according to the center of a circle symmetric arrangement on a vertical plane;Centering device (2) is configured to vertically downward laser emission realizes the centering of device;Inertial measurement unit (3) is configured to measure the pose of device;And two-way inclinometer (4) is configured to measure the horizontal angle of device in the direction of motion.Handheld device is along waterway movement, and waterway is scanned, and the distance measured using infrared light multi-point measuring unit, the position and heading angle of device obtained using inertial measurement unit, the longitudinal inclination β1 and transverse inclination β2 of device in the direction of travel given using two-way inclinometer, the position of each measured point of waterway inner wall is calculated, and all measured points are classified according to the distance of travel to each section, so as to obtain the geometric form of waterway section.

A method, device, electronic equipment and storage medium for visual field deployment, which acquires position information of an actual monitoring device in a three-dimensional map, specifically: taking the latitude and longitude information of the actual monitoring device as the center, determining a search area with a preset height in the three-dimensional map; determining an area conforming to the image characteristics of the monitoring device from the search area; calculating the height information of the installation of the actual monitoring device according to the area conforming to the image characteristics of the monitoring device; further acquiring the horizontal angle of the visual field of the actual monitoring device, and acquiring the pitch angle of the visual field of the actual monitoring device according to the horizontal angle, the photographic image, the image shot by the actual monitoring device and the above position information, thereby finally completing the deployment of the visual field. The present application proposes a scheme for automatically deploying the visual field, which can greatly reduce the manual workload during the deployment of the visual field, and facilitate, quickly and accurately complete the deployment of the visual field.

The invention provides a fusion processing method for improving angle estimation precision, and the method comprises the steps: 1, carrying out the same-address deployment of a radar and a photoelectric camera, and carrying out the deployment in a horizontal manner or a vertical manner; step 2, the radar performs rapid search on the whole airspace, and estimates the distance, the horizontal angle and the vertical angle of the target after the target is detected; 3, after receiving the coarse angle sum, the photoelectric camera rapidly rotates, adjusts the pointing direction of the optical axis, captures a target and performs imaging; 4, calculating a target deviation angle; comprising vertical angle deviation and horizontal angle deviation; and step 5, after obtaining the vertical angle deviation and the horizontal angle deviation of the target, correcting the target angle to obtain the accurate angle of the target. The method combines the advantages of the radar and the photoelectric camera, improves the estimation precision of the target angle, achieves the high-precision positioning of an unmanned plane target, and meets the control requirements of a low-altitude unmanned plane.

The invention discloses a three-dimensional volume measurement method and system based on a millimeter wave radar, and belongs to the field of 3D millimeter wave radar target detection. The millimeter-wave radar is a linear scanning millimeter-wave radar, and is stepped at a constant angular velocity in the horizontal direction and the pitching direction at intervals. The method comprises the following steps: acquiring real material levels measured by a radar at different pitching angles and horizontal angles; the height value in the set grid size is obtained through measurement of the material level, and a smooth contour surface diagram is generated through fitting by applying a proper algorithm; and visually displaying the obtained three-dimensional volume model to achieve an imaging effect. The method has the advantages of being rapid in imaging, high in imaging precision and the like, can be used for obtaining the volume of materials accumulated in containers such as tanks and silos, and can be widely applied to powder, particles, pellet blocks and other blocky solids.

The invention discloses a gearbox gear selecting and shifting track testing method and device, and relates to the field of transmission gearbox test.The gearbox gear selecting and shifting track testing method comprises the steps that the space position offset of a current point position of a testing point relative to an initial point position is obtained through monitoring every time a gear shifting or gear selecting action is completed; the space position offset comprises a horizontal linear offset, a horizontal angle offset and a vertical angle offset; and based on the spatial position offset of the measuring point, calculating the coordinate of the current point location of the measuring point in a preset reference coordinate system so as to generate a spatial movement track of the measuring point. By synchronously monitoring the offsets of the measuring points in the horizontal direction, the transverse direction and the vertical direction and fusing the offsets into a unified space displacement vector, the actual motion trail of the shift lever in the three-dimensional space is completely restored, the accuracy of measurement work is greatly improved, and the measurement accuracy is improved. And gear shifting measurement and gear selecting measurement which need to be carried out for multiple times and step by step originally are integrated, so that the measurement efficiency is improved.