247results about How to "Implement automatic tracking" patented technology

The invention discloses a laser vision guided automatic welding track tracking system which comprises an embedded type industrial personal computer with an image processing device, a laser vision sensor, a welding robot, matched welding equipment and a workpiece clamping workbench; the laser vision sensor is installed on a welding gun in an advanced parallel manner in the welding direction through a laser sensor fixing element; the welding gun is installed on a tail end flange disc of the welding robot through a welding gun fixing element; and the embedded type industrial personal computer is connected with the laser vision sensor through a circuit. The invention also discloses a laser vision guided automatic welding track tracking method. With adoption of the laser vision guided automatic welding track tracking system and method, without the process of teaching in advance, the welding production efficiency and the adaptive ability are improved through real-time detection and tracking; and meanwhile, the problem of tracking lag caused by advanced detection is prevented, and the problem that when a sensor is too near the welding gun, large noise of coupling feature images is caused by factors including strong arc light irradiation, high temperature and smoke dusts, thus the real time and the tracking accuracy of the system are restricted is solved.

The invention discloses an auto tracking control method and device in video monitoring. According to the obtained image position information, the invention judges the moving direction of the monitored object and controls mechanical platform to drive camera to track the moving monitored object and makes the monitored object all along able to be in the center of a monitoring picture, improving video monitoring reliability. At the same time of implementing automatic tracking, it can judge variation trend of image definition according to the image definition information and sends control signal to a camera focuser by this, so as to make the monitoring picture keep a higher definition all along, implementing automatic focusing and further improving video monitoring reliability.

The present invention discloses a composition method of a gantry four-dimensional automatic measurement platform for detecting photochromic performance of display screens and a gantry four-dimensional automatic measurement platform using the method. The present invention relates to the automatic measuring technology of the photochromic performance of display screens, and comprises a platform base, a gantry frame, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis lifting mechanism, and a display screen-carrying rotating platform. By moving the mechanisms to control the circuit, the four-dimensional automatic measurement platform for detecting photochromic performance of display screens is flexibly controlled to accomplish the three-dimensional move of the photochromic measuring instrument and the accurate one-dimensional rotation of the display screen to be measured, the present invention is characterized in stable movement of the photochromic measuring instrument, small rotation radium of the display screen, novel structure, small driving power needed, small size, light weight, low cost, rapid measuring speed, high reliability and so on. The present invention can be widely applied to the photochromic automatic detecting system of LCD or LED television screen, display screen, or mobile phone screen and so on, and the present invention can precisely adjust the coordinate position of the test points and the angle of the display screen intelligently according to the detecting requirement of photochromic performance of the display screens under the computer management, and rapidly accomplish the detection of photochromic performance.

The invention discloses an eight-axis robot space curve welding system for recognizing a welding line by means of lasers. The system comprises a tilting/rotating two-axis positioner used for fixing a workpiece, a laser sensor, a laser sensor fixing element, a welding gun, a welding gun fixing element and a welding robot. The workpiece is fixed to the tilting/rotating two-axis positioner and does tilting and/or rotating motion along with the tilting/rotating two-axis positioner. The laser sensor is mounted on the laser sensor fixing element. The laser sensor fixing element is clamped on the welding gun. The welding gun is mounted on the welding gun fixing element. The welding gun fixing element is mounted on a flange plate at the tail end of the welding robot. Both the laser sensor and the welding gun can move along with the tail end of the welding robot. The invention further discloses an eight-axis robot space curve welding method for recognizing the welding line by means of the lasers. The problems that existing space curve welding line off-line programming is not high in precision, the teaching workload of space curve welding line teaching programming is large, and efficiency is low are solved. Efficiency and precision are high.

The invention discloses a seam tracking method based on liner laser imaging, and the seam tracking method comprises the following steps of step1, equipment calibration: adjusting a linear laser source generator, adjusting the position of a welding gun, fixing a charge coupled device (CCD) camera right in front of the welding gun, collecting an image and transmitting the collected image to a computer; step 2, setting a template; step 3, setting an interesting area; step 4, carrying out the template matching and acquiring a position deviation of the center of a weld seam; step 5, if an image which is matched with the template is found, compensating the deviation of the position of the welding gun; step 6, returning to the step 3 if no image which is matched with the template is found; and step 7, stopping a motor if the finding times of the image which is matched with the template is greater than a set threshold value. Due to the adoption of the seam tracking method, the position of a seam can be precisely positioned in the welding position, the seam tracking accuracy and reliability can be improved, the method is applicable to the tracking of the seams in different shapes, and a purpose for automatically tracking the seam in the welding process can be realized.

The invention discloses an automatically tracking device of welded joint machinery. The automatically tracking device comprises a guide wheel mechanism which is provided with a guide wheel capable of rotating freely; an upper and lower adjustment mechanism which is provided with a first linear bearing extending along the vertical direction and an upper elastic body and a lower elastic body which are arranged separately at the upper side and the lower side of the first linear beating; a left and right adjustment mechanism which is provided with a second linear bearing extending along the left and right direction and a left elastic body and a right elastic body which are arranged separately at the left side and the right side of the second linear bearing; a fine adjustment mechanism which is fixedly connected with the guide wheel mechanism and drives the guide wheel to keep close contact with both one side and the top part of a weld groove; and a welding gun fixing mechanism which is matched with the guide wheel mechanism, is correspondingly connected with the first linear bearing or the second linear bearing, and is fixedly provided with a welding gun at the end part. The left and right adjustment mechanism is connected with the upper and lower adjustment mechanism, and the guide wheel mechanism is connected with the first linear bearing or the second linear bearing. The automatically tracking device can automatically adapt to shift of the left and right, the upper and lower positions of a welded joint, so as to automatically track the welded joint.

The invention discloses an active sun tracker, which comprises a base, a central controller, a servo driver, a mechanical rotary unit of azimuth angles, a mechanical rotary unit of altitude angles, a solar battery module and an external sensor module, wherein the central controller comprises a PLC (Programmable Logic Controller), the PLC converts the computed change of the azimuth angle and the altitude angle of the sun into output pulses, and the output pulses are respectively sent to a rotary stepping motor driver of azimuth angles and an encoder and a counter of a brushless DC motor of altitude angles; and the servo driver comprises the stepping motor driver, the encoder and the counter, wherein the encoder and the counter are used for controlling the brushless DC motor to close the position loop. The sun tracker of the invention can realize the purpose of tracking sunrays in real time with high precision and low energy consumption under various climatic and optical environments.

The invention provides a surveillance automatic tracking method and device. The method comprises the following steps: monitoring whether a moving object is existent in a monitoring target region when performing the video surveillance; if the moving object is existent in the monitoring target region, drawing the movement trajectory of the moving object, producing a movement control instruction according to the movement trajectory, analyzing the size of the moving object, and producing a zoom control instruction according to the size; adjusting a rotation angle of a speed dome through the movement control instruction, and regulating the focal length of a camera lens according to the zoom control instruction so as to zoom in or zoom out the moving object. By use of the automatic tracking method provided by the invention, the automatic tracking on the target object can be realized, and the picture information of the moving object can be acquired more clearly when the shot moving object is focused through the automatic focusing of the equipment.

The invention provides an intelligent tracking cradle head having a radar monitoring function. The intelligent tracking cradle head comprises a cradle head body and a radar monitor, wherein the radar monitor is arranged on the cradle head body; the cradle head body is used for supplying a working power supply to the radar monitor through a power line; and the cradle head body is communicated with the radar monitor through a communication line. A monitoring method is further provided. Compared with the prior art, the intelligent tracking cradle head having the radar monitoring function and the monitoring method have the advantages that I, by using the active monitoring function of the radar monitor, intelligent monitoring and automatic tracking functions of the cradle head can be rapidly realized; II, the radar monitor is carried by using the cradle head, so that all-dimensional coverage of a monitoring region can be realized; III, by using the active monitoring effect of the radar monitor, monitoring dead corners and monitoring dead zones of a visible light camera can be effectively avoided, and meanwhile the application effect of the cradle head under severe weathers or in special environments is ensured; and IV, The intelligent tracking cradle head is wide in application, and can be widely applied to various monitoring fields.

The invention discloses a tracking method of an airborne unmanned aerial vehicle multi-target tracking system based on deep learning, and belongs to the field of unmanned aerial vehicle target tracking. Real-time image information is obtained through a pan-tilt camera; after basic preprocessing is carried out, multiple targets in the image are detected and tracked through a deep learning algorithm, meanwhile, a data association algorithm is used for carrying out association of adjacent frame motions on the targets, one-to-one matching is completed, and current state estimation and historical motion recording of the multiple targets are achieved; according to the position and speed prediction results of the targets, the holder is adjusted to keep the targets in the center of the image, monocular distance measurement is realized, and tracking flight of the targets is realized in combination with the position and speed of the targets. The method does not depend on a GPS, realizes visual angle maintenance in the tracking process, can rapidly, accurately and stably track multiple targets and perform selective tracking, and can better solve the problems that tracking disappears and thenappears and the like; meanwhile, interaction with a user can be performed through wireless communication, and a tracking state is fed back.

The invention discloses an audio tracking based panoramic video recording device and method. The audio tracking based panoramic video recording device comprises a shell, a video acquisition unit and an audio acquisition unit are arranged on the shell, and a video processing unit, an audio processing unit, a microprocessor, a man-machine interaction module and a network transmission module are arranged in the shell. In the method, close-up tracking of a speaker is realized by adopting panoramic video combined with voice positioning and image recognition. The audio tracking based panoramic videorecording device and method has the advantages that tracking and close-up functions of the speaker in video are realized by adopting the single highly-centralized recording device, a function of seamless switching of close-up and full view of a meeting is achieved, cost can be further lowered, and promotion of recording system is benefited.

The invention discloses a laser emitting device and an automatic tracking method to achieve rapid and accurate automatic tracking on a moving laser receiver target. The laser emitting device comprises a laser installation platform and a bottom frame. The laser installation platform comprises a laser emitter used for emitting modulation laser signals, a laser emitter rotating mechanism used for driving the laser emitter to rotate, a laser emitter rotating control unit used for controlling the rotating speed of the laser emitter and automatically tracking a laser receiver, an automatic leveling mechanism used for leveling the laser emitter, and a communication unit used for receiving rotating speed data of the laser emitter and emitting laser emitting angle data. The bottom frame comprises a three-foot frame supporting the whole laser installation platform and a laser installation platform lifting unit used for ascending and descending of the laser installation platform.

The invention discloses an asymmetric square wave modulation method to measure interference fiber gyro eigenfrequency. By controlling module FPGA, the method controls DDS to generate different frequency asymmetric square wave to process phase modulation to Y waveguide; and the signal processing module DSP real-time calculates the margin absolute DeltPd of the accumulation in A/D sampling time T, and processes the absolute minimum judgment to the said margin absolute DeltPd, and when the margin absolute DeltPd close to zero, gets the fiber gyro eigenfrequency fe equaling modulation frequency fd. Such measurement method measures the eigenfrequency Fe with high accuracy, and frequency tracking speed adjustment quick, and highly real-time.

The invention relates to the fields of forest fire prevention and digital image processing, in particular to a robust tracking method for a moving flame target in a forest region monitoring video. The method comprises the following steps of: representing a tracking target by using a multi-feature fusion model of which the weight is determined together by using coherent elements; handling the problem of discontinuity in a region through target probability based element weight adjustment in the tracking region; acquiring shape change of a forest fire target in a current frame by using a Gaussian mixture model probability based improved Mean Shift window adaptive algorithm; obtaining a new position of the forest fire target in the current frame by using an improved particle filter tracking algorithm based on flame pixel proportion in the region; realizing robust tracking of the forest fire target by using a new tracking algorithm combined with an improved particle filter and an improved Mean Shift; and recognizing combination and division of the flame in the forest region during motion to realize the tracking of a plurality of forest fire targets. Compared with the conventional tracking algorithm aiming at the forest fire target, the method has the advantages of higher tracking accuracy and higher robustness on the premise of guaranteeing real-time property.

The invention relates to an automatic primer tightening device which is characterized in comprising a pneumatic swing-table mechanism and primer tightening machines, wherein the pneumatic swing-table comprises a turn plate which is provided with at least six working positions according to the same included angles, four of the sixed working positions are provided with a video acquisition system, a primer tightening machine, a primer tightening depth measuring device and a turn plate working position encoder approach switch respectively; the turn plate is provided with the same number of clamping devices as the working positions, each of the clamping device corresponds to one working position; the pneumatic swing-table mechanism completes the rotation of the turn plate depending on the combined action of three cylinders. When a pre-tightening primer bomb clamped on the turn plate reaches the working position of the primer tightening machine, the primer tightening machine can tighten the primer into the bomb to complete the tightening action. The automatic production of the automatic primer tightening device can not only ensure the reliability, correspondence and safety of the primer products, but also can improve the production efficiency so as to reduce large amount of repetitive labor of workers.

The invention discloses an automatic tracking and positioning method for a surgical instrument in a large visual field. The automatic tracking and positioning method comprises the following steps of 1 using a mechanical arm to control motions of a binocular vision system to obtain the large visual field and automatically tracking the surgical instrument in the large visual field, 2 determining the space position of the binocular vision system according to the position relation of a steering engine of the mechanical arm, and 3 positioning the surgical instrument through space coordinate transformation. The problem that the binocular vision system is small in effective visual field and cannot position the surgical instrument in a wide-range mode is effectively solved, and the automatic tracking and positioning method has the advantages of achieving automatic tracking and positioning of the surgical instrument in the large visual field and the like.

The invention discloses an automatic real-time MCE sequence image myocardial tissue region-of-interest (ROI) tracking method and belongs to the medical ultra-sound sequence image analysis processing technology field. The method is characterized in that, a medical image elastic registration method based on hierarchical strategies is in combination with the Karman filtering technology to realize automatic real-time MCE sequence image myocardial tissue ROI tracking. The method comprises steps, the myocardial ROI is selected; initiation is carried out; the medical image elastic registration method based on the hierarchical strategies is employed for registration of sequence images; correction on the registration result is carried out by utilizing the Karman filtering technology; and the myocardial ROI is marked on the sequence image. Through the method, automatic real-time MCE sequence image myocardial tissue ROI tracking can be reliably realized, the tracking method has relatively high precision and accuracy, and inter-frame accumulation of a tracking error can be effectively avoided. The method is further applicable to automatic tracking on other medical ultra-sound sequence image ROI.

The invention relates to a method and a device for controlling a vertical welding process of applying a synchronizing pulse compound magnetic field. The method and device are used for mainly solving the technical problems of low degree of automation of the present vertical welding, difficulty in seam tracking, and the like. The device comprises a vertical welding arc tracking sensor, a welding source, a wire feeder, a Hall sensor, a tracking system controller, an executing mechanism, a current voltage detecting module, a synchronous thrust pulse generator and a power amplifier circuit, wherein the vertical welding arc tracking sensor comprises a welding gun, a horizontal magnetic field generating device and a thrust magnetic field generating device; the horizontal magnetic field generating device is used for generating an alternating magnetic field and causing an electric arc to laterally oscillate and scan the welding joint, thereby acquiring welding joint information and performing welding joint tracking; a thrust magnetic field generated by the thrust magnetic field generating device is used for causing the electric arc and molten drop to be affected by a suitable upward thrust, so that the gravity suffered by the molten drop and a melting pool during the vertical welding process is counteracted, the welding joint tracking of the vertical welding is realized and the welding efficiency of the vertical welding is increased under the condition of ensuring the welding joint quality of the vertical welding.