CN213659471U

CN213659471U - Motion attitude video measuring device based on GPU

Info

Publication number: CN213659471U
Application number: CN202023067531.2U
Authority: CN
Inventors: 李春; 郭维成; 陈智强; 邓志忠; 赵航云; 朱玉梅; 李涛; 李声扬
Original assignee: CHENGDU LIXIN NEW TECHNOLOGY CO LTD
Current assignee: CHENGDU LIXIN NEW TECHNOLOGY CO LTD
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-07-09
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a motion attitude video measuring device based on GPU, which comprises a host, a synchronous controller, a beam, an illumination compensation device and a video acquisition device, wherein the video acquisition device is symmetrically fixed at two ends of the beam; the illumination compensation device is fixed in the middle of the cross beam, and the azimuth angle and the pitch angle of the illumination compensation device are adjustable; the host comprises a case, a main control panel, a GPU processor, an image acquisition card and a display screen, wherein the main control panel, the image acquisition card and the display screen are all fixed in the case; the video acquisition device is respectively connected with the image acquisition card and the synchronous controller, the illumination compensation device is connected with the synchronous controller, and the synchronous controller is connected with the main control panel. The utility model discloses an effective measurement of object motion gesture and improved image processing's efficiency.

Description

Motion attitude video measuring device based on GPU

Technical Field

The utility model relates to a measure technical field, specifically speaking relate to a motion gesture video measuring device based on GPU.

Background

The moving posture video measuring technology is to use a machine to replace human eyes for measurement and judgment, but the human eyes or a common industrial camera can hardly capture the details of a moving object due to the high speed of the object moving at a high speed, so that the image acquisition technology capable of imaging at a high speed is required to finish the rapid and repeated sampling of a high-speed target in a short time, so that the change process of the recorded target is clearly and slowly presented in front of the eyes of people.

At present, the functions of image identification of mark points, sub-pixel positioning, matching and the like in the aircraft model video measurement technology are all post-processing of image data by a compatible computer after an aircraft model test, and result data cannot be provided within 5-10 minutes after the test is finished, so that the technical problem of low processing speed exists. In addition, when a deformation measurement test is carried out on the continuous aircraft model, the image data of a single industrial camera at a temperature step is up to about 280GB, and if the image data is still processed by using the conventional method, at least several days are needed, so that the test efficiency of the aircraft model is seriously influenced.

With the increase of the processing speed of the GPU in recent years, the GPU is used as a processor to process a test image sequence acquired by an industrial camera in real time, and the method can be used for rapidly extracting coordinates and feature data of mark points in an image and storing a real-time compressed image. Therefore, how to combine the cost and the capability of the current parallel image processing hardware, the existing marking point image identification, sub-pixel positioning and matching technology is converted into hardware, and a motion attitude video measurement technology which can meet the functions of real-time storage, marking point identification, sub-pixel positioning and matching and the like of high-speed massive images becomes an inevitable trend.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provide a motion attitude video measuring device based on a GPU, on one hand, the utility model can flexibly adjust the measuring angle and realize the effective measurement of the motion attitude of an object; and on the other hand, the image processing can be performed based on the GPU, so that the image processing efficiency is improved.

In order to achieve the above object, the utility model adopts the following technical scheme:

a motion attitude video measuring device based on GPU is characterized in that: the device comprises a host, a synchronous controller, a cross beam, an illumination compensation device and video acquisition devices, wherein the video acquisition devices are symmetrically fixed at two ends of the cross beam, and the azimuth angles of the video acquisition devices are adjustable; the illumination compensation device is fixed in the middle of the cross beam, and the azimuth angle and the pitch angle of the illumination compensation device are adjustable; the host comprises a case, a main control panel, a GPU processor, an image acquisition card and a display screen, wherein the main control panel, the image acquisition card and the display screen are all fixed in the case; the video acquisition device is respectively connected with the image acquisition card and the synchronous controller, the illumination compensation device is connected with the synchronous controller, and the synchronous controller is connected with the main control panel.

The synchronous controller comprises a box body, a PCB control panel, a signal indicator lamp, a power switch and a signal connector, wherein the PCB control panel, the signal indicator lamp, the power switch and the signal connector are all fixed on the box body, the PCB control panel is respectively connected with the signal indicator lamp, the power switch and the signal connector, and the PCB control panel is respectively connected with a video acquisition device, an illumination compensation device and a main control panel through the signal connector.

The video acquisition device comprises a shell, an industrial camera, a UV (ultraviolet) waterproof filter, a protective sleeve, a camera base, a connecting cable, a photoelectric encoder, an encoder fixing base, a worm speed-reducing stepping motor, a PCB (printed circuit board) adapter plate, a first rotating bearing, a motor fixing shaft and a positioning base, wherein the positioning base is fixed on a cross beam, the motor fixing shaft is fixed on the positioning base, a step ring is arranged on the motor fixing shaft, and the first rotating bearing is sleeved on the step ring; the camera base, the photoelectric encoder, the encoder fixing base, the worm speed-reducing stepping motor and the PCB adapter plate are all arranged in the shell; the industrial camera is fixed on one side of the shell through the camera seat, the UV waterproof filter and the protective sleeve are arranged on the industrial camera, and the industrial camera is respectively connected with the image acquisition card and the signal connector through the connecting cable; the worm speed-reducing stepping motor is fixed at the bottom of the shell, a power shaft of the worm speed-reducing stepping motor extends out of the shell and is connected with a motor fixing shaft, and the photoelectric encoder is connected with the power shaft of the worm speed-reducing stepping motor through an encoder fixing seat; the PCB pinboard is fixed on the other side of the shell and is respectively connected with the worm speed-reducing stepping motor and the signal connector.

The other side of the shell corresponding to the industrial camera is also provided with a clamping seat for fixing the cable.

The illumination compensation device comprises a fixed base, a limiting seat, a rotary positioning seat, a second rotary bearing, an azimuth angle adjusting mechanism, a pitch angle adjusting mechanism and an illumination mechanism, wherein the fixed base is fixed on the cross beam, the limiting seat is installed on the fixed base, the rotary positioning seat is fixed on the limiting seat, a ring platform is arranged on the rotary positioning seat, and the second rotary bearing is sleeved on the ring platform; the azimuth angle adjusting mechanism comprises a control box and a horizontal rotating assembly, the horizontal rotating assembly is fixed in the control box, and the horizontal rotating assembly is fixedly connected with the rotary positioning seat; the lighting mechanism is fixed on the control box through the pitch angle adjusting mechanism; the horizontal rotating assembly, the pitch angle adjusting mechanism and the illuminating mechanism are connected with the main control panel through signal connectors.

The horizontal rotating assembly comprises a rotating motor, a positioning seat body, a PCB rotating positioning plate, a bottom cover and a motor positioning table, the positioning seat body is fixed at the bottom of the control box through the bottom cover, and the rotating motor is fixed above the positioning seat body; the motor positioning table is fixed at the bottom of the control box, one end of the motor positioning table is fixedly connected with the rotary positioning seat, and the other end of the motor positioning table penetrates through the bottom cover and is fixedly connected with a rotating shaft of the rotating motor; the PCB rotates the locating plate and fixes in the positioning seat body through the bottom, and PCB rotates the rotational axis connection of locating plate and rotation motor, and PCB rotates the locating plate and rotates the motor and all be connected with the main control board through signal connector.

The control box comprises a box body and a bottom plate, the bottom cover and the motor positioning table are fixed on the bottom plate, and the illuminating mechanism is fixed on the box body through a pitch angle adjusting mechanism.

The pitch angle adjusting mechanism comprises a first supporting seat, a second supporting seat, a first limiting fixed seat, a second limiting fixed seat, a PCB overturning positioning plate, a third rotating bearing, an overturning motor and a rotating limiting clamp, wherein the first limiting fixed seat and the second limiting fixed seat are respectively connected to two sides of the illuminating mechanism through the third rotating bearing; the lower extreme of first supporting seat and the lower extreme of second supporting seat are fixed respectively on the control box, and the upper end of first supporting seat and the upper end of second supporting seat are fixed respectively on first spacing fixing base and the spacing fixing base of second.

The lighting mechanism comprises a lamp box, a light-transmitting plate, a light-gathering cover, an LED lamp and a rear box cover, the lamp box is connected with the pitch angle adjusting mechanism, the light-transmitting plate, the light-gathering cover and the LED lamp are sequentially fixed in the lamp box, the rear box cover is fixed on the lamp box, and the LED lamp is connected with the main control panel through a signal connector.

The number of the main control boards, the GPU processor and the image acquisition cards is the same as that of the video acquisition devices, the main control boards are connected through cables, each set of video acquisition device is correspondingly connected with one set of image acquisition card and one set of main control board, and the synchronous controller and the illumination compensation device are connected with one set of main control board.

The case comprises a case body, an upper cover, a front cover, a rear cover and a lifting handle, wherein the upper cover is fixed above the case body, the front cover and the rear cover are respectively fixed on the front side and the back side of the case body, and the lifting handle is fixed on the side surface of the case body; the display hole has been seted up on the protecgulum, and the display screen is fixed to be covered in the front and corresponding with the display hole, and the protecgulum covers with the back and all is provided with shock attenuation callus on the sole.

Adopt the utility model has the advantages of:

1. the utility model discloses set up azimuth adjustable video acquisition device at the both ends of crossbeam, set up the equal adjustable illumination compensation arrangement of azimuth and angle of pitch at the middle part of crossbeam, both cooperate, not only can adjust measurement angle in a flexible way, can also carry out the light filling under the not enough complicated operating mode of light to realize the effective measurement of object motion gesture. In addition, the host with the GPU processor can process images based on the GPU, and the image processing efficiency is greatly improved. The combination of the structures enables the video measuring device to effectively meet the functions of real-time storage, mark point identification, sub-pixel positioning and matching and the like of high-speed mass images.

2. The utility model discloses well video acquisition device and illumination compensation arrangement have all adopted rotating-structure that can high accuracy remote control, can enough realize the horizontal rotation of the 90 degrees of illumination face and the every single move adjustment of 60 degrees, can long-range automatic control again, and it is very convenient not only to control, has still greatly promoted the degree of automation of device.

3. The utility model discloses well video acquisition device and illumination compensation arrangement's rational in infrastructure and arrange comparatively inseparably, have advantages such as small in size, portable.

4. The utility model discloses well each electron device all has the shell protection, can protect electron device not receive the damage effectively, is favorable to hoisting device's life.

5. The utility model provides an illuminating mechanism has advantages such as simple structure, low cost, light filling are effectual.

6. The utility model discloses a host computer and synchronous controller cooperation can effective control video acquisition device and illumination compensation arrangement, and intelligent degree is higher, and it is more convenient to operate.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic plan view of the main frame of the present invention;

FIG. 3 is an exploded view of the main frame of the present invention;

fig. 4 is a schematic structural diagram of the synchronous controller of the present invention;

fig. 5 is a schematic structural view of the cross beam of the illumination compensation device and the video acquisition device of the present invention;

fig. 6 is an exploded view of the video acquisition device of the present invention;

fig. 7 is an exploded view of the front side of the illumination compensation device of the present invention;

fig. 8 is an exploded view of the side of the illumination compensation device of the present invention;

labeled as: 1. the system comprises a host, 2, a synchronous controller, 3, a beam, 4, a video acquisition device, 5, an illumination compensation device, 6, a glass observation window, 7 and a measured model;

101. the device comprises a box body, 102, an upper cover, 103, a front cover, 104, a rear cover, 105, a handle, 106, a shock absorption foot pad, 107, a main control panel, 108, a GPU processor, 109, an image acquisition card, 110, a display screen, 111, a cooling fan, 112, a memory bar, 113 and a power supply;

201. a box body 202, a PCB control board 203, a signal indicator lamp 204, a power switch 205 and a signal connector;

401. the camera comprises a shell, 402, an industrial camera, 403, a UV waterproof filter, 404, a protective sleeve, 405, a camera seat, 406, a connecting cable, 407, a photoelectric encoder, 408, an encoder fixing seat, 409, a worm speed-reducing stepping motor, 410, a PCB adapter plate, 411, a first rotating bearing, 412, a motor fixing shaft, 413, a positioning base, 414 and a clamping seat;

501. the fixed base, 502, spacing seat, 503, the rotation positioning seat, 504, the second swivel bearing, 505, the ring platform, 506, the azimuth angle adjustment mechanism, 507, the pitch angle adjustment mechanism, 508, the lighting mechanism, 509, the control box, 510, the rotation motor, 511, the location pedestal, 512, the PCB rotates the locating plate, 513, the bottom cover, 514, the motor location platform, 515, the first supporting seat, 516, the second supporting seat, 517, the first spacing fixing seat, 518, the second spacing fixing seat, 519, the PCB upset locating plate, 520, the third swivel bearing, 521, the upset motor, 522, rotate the spacing card, 523, the lamp house, 524, the light-passing board, 525, the snoot, 526, the LED lamp, 527, the back box lid.

Detailed Description

The utility model discloses a motion attitude video measuring device based on GPU, as shown in figures 1 and 5, comprising a host 1, a synchronous controller 2, a beam 3, an illumination compensation device 5 and a video acquisition device 4, wherein the video acquisition device 4 is symmetrically fixed at two ends of the beam 3, and the azimuth angle of the video acquisition device 4 is adjustable; the illumination compensation device 5 is fixed in the middle of the cross beam 3, and the azimuth angle and the pitch angle of the illumination compensation device 5 are adjustable; the host 1 comprises a chassis, a main control panel 107, a GPU processor 108, an image acquisition card 109 and a display screen 110, wherein the main control panel 107, the image acquisition card 109 and the display screen 110 are all fixed in the chassis, the main control panel 107 is respectively connected with the GPU processor 108, the image acquisition card 109 and the display screen 110, and the image acquisition card 109 is connected with the GPU processor 108 through the main control panel 107; the video acquisition device 4 is respectively connected with the image acquisition card 109 and the synchronous controller 2, the illumination compensation device 5 is connected with the synchronous controller 2, and the synchronous controller 2 is connected with the main control panel 107. The image acquisition card 109 is used for acquiring images acquired by the video acquisition device 4, the GPU processor 108 is used for processing the images acquired by the image acquisition card 109 at a high speed and transmitting the result to the main control board 107, and the main control board 107 controls the actions (such as opening and closing, rotation and the like) of the video acquisition device 4 and the actions (such as opening and closing, rotation and the like) of the illumination compensation device 5 through the synchronous controller 2.

The specific structure, location and connection of the components are described in detail below with reference to the specific drawings, as follows:

as shown in fig. 2 and 3, the chassis is preferably a square structure, and includes a box 101, an upper cover 102, a front cover 103, a rear cover 104, and a handle 105, wherein the upper cover 102 is fixed above the box 101, the front cover 103 and the rear cover 104 are respectively fixed on the front and the rear of the box 101, and the handle 105 is fixed on the side of the box 101; the display hole is formed in the front cover 103, the display screen 110 is fixed on the front cover 103 and corresponds to the display hole, and the four corners of the front cover 103 and the four corners of the rear cover 104 are provided with the shock absorption foot pads 106, so that the vibration of equipment in the chassis is reduced. The dimension of the box 101 is length, width, x height 514, 450, 350mm, and the weight is about 50 Kg. All components select proper components according to the standards of the reliability handbook of electronic equipment. The part reliability includes: in the design process, the selection of components, the screening of the components, the derating design, the thermal design of a circuit, the electromagnetic compatibility (EMC) design of a circuit board, the maintainability design, the environmental design and the human factor design are fully considered; the high-grade prototype adopts a sealing rainproof and rubber anti-vibration design, a high-temperature heat dissipation design, a low-temperature control design, a standardized interface design and the like; the reliability of the operation of the equipment is ensured.

Further, the host 1 further includes a heat dissipation fan 111, a memory bank 112 and a power supply 113 all fixed in the case 101. The memory bank 112 is fixed on the main control board 107, the heat dissipation fan 111 dissipates heat for the host 1, and the power source 113 supplies power for the host 1.

Furthermore, the number of the main control board 107, the GPU processor 108, the image acquisition card 109, the cooling fan 111, the memory bank 112 and the power supply 113 is the same as that of the video acquisition devices, all the devices are installed in the box 101 in layers, and the main control boards 107 are connected by cables. Each set of equipment corresponds to each set of video capture device 4, that is, one set of video capture device 4 is connected to the image capture card 109 on one layer, and is connected to the main control board 107 on the layer through the synchronous controller 2. The synchronous controller 2 and the illumination compensation device 5 are connected with one set of the main control board 107. Finally, one of the main control boards 107 can be designated to summarize data and output the display results to the display screen 110.

As shown in fig. 4, the synchronous controller 2 is configured to provide a power supply and a synchronous trigger signal to the video capture device 4 when the requirement for image synchronous capture is high, and includes modes such as external trigger, software trigger, and hardware trigger, and also provides a power supply and upper computer instruction forwarding for the rear-stage drive control board. The intelligent illumination box specifically comprises a box body 201, a PCB control board 202, a signal indicator lamp 203, a power switch 204 and a signal connector 205, wherein the PCB control board 202, the signal indicator lamp 203, the power switch 204 and the signal connector 205 are all fixed on the box body 201, the PCB control board 202 is respectively connected with the signal indicator lamp 203, the power switch 204 and the signal connector 205, and the PCB control board 202 is respectively connected with a video acquisition device 4, an illumination compensation device 5 and a main control board 107 through the signal connector 205.

As shown in fig. 6, the video capturing device 4 is used for capturing an image of a tested model 7 at a high speed, and specifically includes a housing 401, an industrial camera 402, a UV waterproof filter 403, a protective cover 404, a camera holder 405, a connecting cable 406, a photoelectric encoder 407, an encoder holder 408, a worm speed reduction stepping motor 409, a PCB adapter plate 410, a first rotary bearing 411, a motor fixing shaft 412 and a positioning base 413, wherein the positioning base 413 is fixed on the beam 3, the motor fixing shaft 412 is fixed on the positioning base 413, a step ring is arranged on the motor fixing shaft 412, and the first rotary bearing 411 is sleeved on the step ring, so that friction force caused by rotation can be reduced; the camera base 405, the photoelectric encoder 407, the encoder fixing base 408, the worm speed reduction stepping motor 409 and the PCB adapter plate 410 are all arranged in the shell 401; the industrial camera 402 is fixed on one side of the shell 401 through a camera base 405, the UV waterproof filter 403 and the protective sleeve 404 are both arranged on the industrial camera 402, and the industrial camera 402 is respectively connected with the image acquisition card 109 and the signal connector through a connecting cable 406; a worm speed-reducing stepping motor 409 is fixed at the bottom of the shell 401, a power shaft of the worm speed-reducing stepping motor 409 extends out of the shell 401 to be connected with a motor fixing shaft 412, a photoelectric encoder 407 is connected with the power shaft of the worm speed-reducing stepping motor 409 through an encoder fixing seat 408, and the photoelectric encoder 407 is used for detecting the initial position of the power shaft so as to accurately control the rotation angle; the PCB adapter plate 410 is fixed on the other side of the housing 401, and the PCB adapter plate 410 is connected with the photoelectric encoder 407, the worm deceleration stepping motor 409 and the signal connector 205 respectively. In practical use, the main control board 107 may issue various instructions to the PCB adapter board 410 through the PCB control board 202 of the synchronous controller 2, such as turning on and off the industrial camera 402, turning on and off the worm speed reduction stepping motor 409, and the like. When the worm deceleration stepper motor 409 is started, the industrial camera 402 can rotate on the beam 3, so that the adjustment of the azimuth angle is realized.

Further, a through hole is further formed in the other side, corresponding to the industrial camera 402, of the shell 401, a clamping seat 414 for fixing a cable is fixedly arranged at the through hole, and various cables connected with the video acquisition device 4 are integrally fixed through the clamping seat 414, so that the attractiveness of wiring is facilitated.

As shown in fig. 7 and 8, the illumination compensation device 5 is used for supplementing light when the imaging quality is poor due to a short exposure time and a small amount of light entering, and the illumination compensation device 5 can remotely and electrically adjust left and right rotation or front and back pitching according to the direction in which the industrial camera 402 shoots the measured model 7. The device specifically comprises a fixed base 501, a limiting seat 502, a rotary positioning seat 503, a second rotary bearing 504, an azimuth angle adjusting mechanism 506, a pitch angle adjusting mechanism 507 and a lighting mechanism 508, wherein the fixed base 501 is fixed on the cross beam 3, the limiting seat 502 is installed on the fixed base 501, the rotary positioning seat 503 is fixed on the limiting seat 502, a ring platform 505 is arranged on the rotary positioning seat 503, and the second rotary bearing 504 is sleeved on the ring platform 505 to reduce friction force brought by rotation; the azimuth angle adjusting mechanism 506 comprises a control box 509 and a horizontal rotating component, wherein the horizontal rotating component is fixed in the control box 509 and is fixedly connected with the rotary positioning seat 503; the lighting mechanism 508 is fixed on a control box 509 through a pitch angle adjusting mechanism 507; the horizontal rotating assembly, the pitch angle adjusting mechanism 507 and the lighting mechanism 508 are all connected with the main control board 107 through the signal connector 205. In practical use, the main control board 107 can issue various instructions to the horizontal rotation assembly, the pitch angle adjustment mechanism 507 and the illumination mechanism 508 through the PCB control board 202 of the synchronous controller 2, for example, to turn on and off the horizontal rotation assembly, turn on and off the pitch angle adjustment mechanism 507, turn on and off the illumination mechanism 508, and the like, so as to realize the azimuth angle adjustment, pitch angle adjustment and turning on and off of the illumination mechanism 508.

The horizontal rotating assembly comprises a rotating motor 510, a positioning seat body 511, a PCB rotating positioning plate 512, a bottom cover 513 and a motor positioning table 514, wherein the positioning seat body 511 is provided with an accommodating space and is fixed at the bottom of the control box 509 through the bottom cover 513, and the rotating motor 510 is fixed above the positioning seat body 511; the motor positioning table 514 is fixed at the bottom of the control box 509, one end of the motor positioning table 514 is fixedly connected with the rotation positioning seat 503, and the other end of the motor positioning table 514 passes through the bottom cover 513 and is fixedly connected with the rotation shaft of the rotation motor 510; the PCB rotation positioning plate 512 is fixed in the positioning base 511 through the bottom cover 513, the PCB rotation positioning plate 512 is connected with the rotation shaft of the rotation motor 510, and both the PCB rotation positioning plate 512 and the rotation motor 510 are connected with the main control board 107 through the signal connector 205. In actual use, after receiving an instruction from the main control board 107, the rotating motor 510 drives the pitch angle adjusting mechanism 507 to rotate to adjust the azimuth angle of the illuminating mechanism 508; the PCB rotation positioning plate 512 is used to detect the initial position of the rotation shaft so as to accurately control the rotation angle.

Further, the control box 509 comprises a box body and a bottom plate, the bottom cover 513 and the motor positioning table 514 are fixed on the bottom plate, and the lighting mechanism 508 is fixed on the box body through the pitch angle adjusting mechanism 507.

The pitch angle adjusting mechanism 507 comprises a first supporting seat 515, a second supporting seat 516, a first limit fixed seat 517, a second limit fixed seat 518, a PCB overturning positioning plate 519, a third rotary bearing 520, an overturning motor 521 and a rotary limit clamp 522, wherein the first limit fixed seat 517 and the second limit fixed seat 518 are respectively connected to two sides of the illuminating mechanism 508 through the third rotary bearing 520, the rotary limit clamp 522 is fixed on the illuminating mechanism 508 and is matched with the first limit fixed seat 517 to limit the overturning angle of the illuminating mechanism 508, the PCB overturning positioning plate 519 is fixed on the first limit fixed seat 517, the overturning motor 521 is fixed on the second limit fixed seat 518 and is fixedly connected with the illuminating mechanism 508 through a rotary shaft, and the PCB overturning positioning plate 519 and the overturning motor 521 are both connected with the main control panel 107 through a signal connector 205; the lower end of the first supporting seat 515 and the lower end of the second supporting seat 516 are respectively fixed on the control box 509, and the upper end of the first supporting seat 515 and the upper end of the second supporting seat 516 are respectively fixed on the first limiting fixing seat 517 and the second limiting fixing seat 518. In actual use, after receiving an instruction from the main control board 107, the overturning motor 521 drives the illuminating mechanism 508 to overturn so as to adjust the pitch angle of the illuminating mechanism 508; the PCB inversion positioning plate 519 is used to detect the initial position of the rotation shaft so as to accurately control the inversion angle.

The illumination mechanism 508 includes lamp house 523, light-transmitting board 524, snoot 525, LED lamp 526 and back case lid 527, and lamp house 523 is connected with pitch angle adjustment mechanism 507, and light-transmitting board 524, snoot 525, LED lamp 526 fix in proper order in lamp house 523, and back case lid 527 is fixed on lamp house 523, and LED lamp 526 passes through signal connector 205 and is connected with main control panel 107. In actual use, after the LED lamp 526 receives an instruction from the main control board 107, the LED lamp 526 can be controlled to be turned on and off, so as to supplement light during measurement.

The utility model discloses in the in-service use, can also set up the temperature and humidity sensor and the semiconductor cooler that all are connected with PCB keysets 410 in video acquisition device 4 to in real time adjust video acquisition device 4 operational environment's humiture, thereby make video acquisition device 4 work under suitable environment humiture.

The utility model discloses in the aircraft model video measurement technique of practical application, can realize the software and hardware system's of the real-time storage of high-speed mass image, mark point discernment and sub-pixel location and matching demand. Meanwhile, illumination compensation in multiple directions and multiple angles is achieved through the light control system, and the problem of insufficient light in the high-speed acquisition ground exposure imaging environment is solved.

The utility model discloses an implement the principle as follows:

step 1, as shown in fig. 1, placing a measured model 7 at a proper position, arranging a glass observation window 6 between the measured model 7 and a video acquisition device 4, fixing the video acquisition device 4 in a horizontal and opposite manner, adjusting the angle position between an industrial camera 402 and the measured model 7, opening light compensation, completing focusing, and ensuring the imaging definition of the measured model 7.

Step 2, pasting a mark point which can be used for image processing software identification on the surface of the tested model 7, enabling the mark point to be firmly pasted on the surface of the tested model 7 according to the test requirement, connecting communication control cables among all modules, turning on the illuminating mechanism 508, and observing through image acquisition software trial acquisition in the host 1, so that the image is clear, and the mark point can be normally identified.

And 3, opening the control software in the host 1, self-checking each module of the device, and determining that the communication and the control are normal. The working environment parameters of the video acquisition device 4 are read through inquiry, and the current environment parameters are adjusted through the control software of the host 1.

And 4, issuing commands to control the worm speed reduction stepping motor 409 and the photoelectric encoder 407 of the video acquisition device 4 through the host 1 control software, realizing accurate adjustment of the angle between the industrial camera 402 and the measured model 7, simultaneously starting the image analysis and processing software to observe the image acquisition imaging condition of the measured model 7, and finely adjusting parameters such as lamplight, angle and the like again until clear and complete video images can be obtained in the imaging test window and all mark points are normally and clearly identified.

And 5, opening image analysis processing software, selecting an experiment type as an online experiment, setting acquisition parameters of the industrial camera 402, reading in a real-time image after parameter configuration is finished, setting an experiment mode as extracting a mark point, compressing the image at a high speed or extracting the point and compressing the image, saving data and compressing the image after the online experiment is finished, and displaying the mark point coordinate after real-time analysis processing.

And 6, opening image analysis processing software, selecting the experiment type as an off-line experiment, importing the off-line image into an off-line image folder, selecting an experiment picture, configuring and finely adjusting experiment parameters, analyzing, processing and extracting mark points, and displaying the calculated coordinates of the mark points on the display screen 110.

Claims

1. A motion attitude video measuring device based on GPU is characterized in that: the device comprises a host (1), a synchronous controller (2), a cross beam (3), an illumination compensation device (5) and a video acquisition device (4), wherein the video acquisition device (4) is symmetrically fixed at two ends of the cross beam (3), and the azimuth angle of the video acquisition device (4) is adjustable; the illumination compensation device (5) is fixed in the middle of the cross beam (3), and the azimuth angle and the pitch angle of the illumination compensation device (5) are adjustable; the host (1) comprises a case, a main control panel (107), a GPU processor (108), an image acquisition card (109) and a display screen (110), wherein the main control panel (107), the image acquisition card (109) and the display screen (110) are all fixed in the case, the main control panel (107) is respectively connected with the GPU processor (108), the image acquisition card (109) and the display screen (110), and the image acquisition card (109) is connected with the GPU processor (108) through the main control panel (107); the video acquisition device (4) is respectively connected with the image acquisition card (109) and the synchronous controller (2), the illumination compensation device (5) is connected with the synchronous controller (2), and the synchronous controller (2) is connected with the main control panel (107).

2. A GPU-based motion gesture video measurement apparatus as claimed in claim 1, wherein: the synchronous controller (2) comprises a box body (201), a PCB control board (202), a signal indicator lamp (203), a power switch (204) and a signal connector (205), wherein the PCB control board (202), the signal indicator lamp (203), the power switch (204) and the signal connector (205) are fixed on the box body (201), the PCB control board (202) is respectively connected with the signal indicator lamp (203), the power switch (204) and the signal connector (205), and the PCB control board (202) is respectively connected with a video acquisition device (4), an illumination compensation device (5) and a main control board (107) through the signal connector (205).

3. A GPU-based motion gesture video measurement apparatus as claimed in claim 2, wherein: the video acquisition device (4) comprises a shell (401), an industrial camera (402), a UV waterproof filter (403), a protective sleeve (404), a camera base (405), a connecting cable (406), a photoelectric encoder (407), an encoder fixing base (408), a worm speed reduction stepping motor (409), a PCB adapter plate (410), a first rotary bearing (411), a motor fixing shaft (412) and a positioning base (413), wherein the positioning base (413) is fixed on the cross beam (3), the motor fixing shaft (412) is fixed on the positioning base (413), a step ring is arranged on the motor fixing shaft (412), and the first rotary bearing (411) is sleeved on the step ring; the camera base (405), the photoelectric encoder (407), the encoder fixing base (408), the worm speed reduction stepping motor (409) and the PCB adapter plate (410) are all arranged in the shell (401); the industrial camera (402) is fixed on one side of the shell (401) through a camera base (405), the UV waterproof filter (403) and the protective sleeve (404) are arranged on the industrial camera (402), and the industrial camera (402) is respectively connected with the image acquisition card (109) and the signal connector through a connecting cable (406); a worm speed-reducing stepping motor (409) is fixed at the bottom of the shell (401), a power shaft of the worm speed-reducing stepping motor (409) extends out of the shell (401) and is connected with a motor fixing shaft (412), and a photoelectric encoder (407) is connected with the power shaft of the worm speed-reducing stepping motor (409) through an encoder fixing seat (408); the PCB adapter plate (410) is fixed on the other side of the shell (401), and the PCB adapter plate (410) is respectively connected with the worm speed-reducing stepping motor (409) and the signal connector (205).

4. A GPU-based motion gesture video measurement apparatus according to claim 2 or 3, wherein: the illumination compensation device (5) comprises a fixed base (501), a limiting seat (502), a rotary positioning seat (503), a second rotary bearing (504), an azimuth angle adjusting mechanism (506), a pitch angle adjusting mechanism (507) and an illumination mechanism (508), wherein the fixed base (501) is fixed on the cross beam (3), the limiting seat (502) is installed on the fixed base (501), the rotary positioning seat (503) is fixed on the limiting seat (502), a ring platform (505) is arranged on the rotary positioning seat (503), and the second rotary bearing (504) is sleeved on the ring platform (505); the azimuth angle adjusting mechanism (506) comprises a control box (509) and a horizontal rotating assembly, the horizontal rotating assembly is fixed in the control box (509), and the horizontal rotating assembly is fixedly connected with the rotary positioning seat (503); the lighting mechanism (508) is fixed on the control box (509) through a pitch angle adjusting mechanism (507); the horizontal rotating assembly, the pitch angle adjusting mechanism (507) and the illuminating mechanism (508) are connected with a main control panel (107) through signal connectors (205).

5. A GPU-based motion gesture video measurement device according to claim 4, characterized in that: the horizontal rotating assembly comprises a rotating motor (510), a positioning seat body (511), a PCB rotating positioning plate (512), a bottom cover (513) and a motor positioning table (514), the positioning seat body (511) is fixed at the bottom of the control box (509) through the bottom cover (513), and the rotating motor (510) is fixed above the positioning seat body (511); the motor positioning table (514) is fixed at the bottom of the control box (509), one end of the motor positioning table (514) is fixedly connected with the rotary positioning seat (503), and the other end of the motor positioning table (514) penetrates through the bottom cover (513) and then is fixedly connected with a rotating shaft of the rotating motor (510); the PCB rotation positioning plate (512) is fixed in the positioning base body (511) through the bottom cover (513), the PCB rotation positioning plate (512) is connected with a rotation shaft of the rotation motor (510), and the PCB rotation positioning plate (512) and the rotation motor (510) are connected with the main control panel (107) through the signal connector (205).

6. A GPU-based motion gesture video measurement apparatus as claimed in claim 5, wherein: the control box (509) comprises a box body and a bottom plate, a bottom cover (513) and a motor positioning table (514) are fixed on the bottom plate, and the illuminating mechanism (508) is fixed on the box body through a pitch angle adjusting mechanism (507).

7. A GPU-based motion gesture video measurement device according to claim 4, characterized in that: the pitch angle adjusting mechanism (507) comprises a first supporting seat (515), a second supporting seat (516), a first limiting fixed seat (517), a second limiting fixed seat (518), a PCB overturning positioning plate (519), a third rotating bearing (520), an overturning motor (521) and a rotating limiting card (522), wherein the first limiting fixed seat (517) and the second limiting fixed seat (518) are connected to two sides of the illuminating mechanism (508) through the third rotating bearing (520) respectively, the rotating limiting card (522) is fixed on the illuminating mechanism (508) and matched with the first limiting fixed seat (517) to limit the overturning angle of the illuminating mechanism (508), the PCB overturning positioning plate (519) is fixed on the first limiting fixed seat (517), the overturning motor (521) is fixed on the second limiting fixed seat (518) and fixedly connected with the illuminating mechanism (508) through a rotating shaft, and the PCB overturning positioning plate (519) and the overturning motor (521) are connected with the main control panel (107) through signal connectors (205) (ii) a The lower extreme of first supporting seat (515) and the lower extreme of second supporting seat (516) are fixed respectively on control box (509), and the upper end of first supporting seat (515) and the upper end of second supporting seat (516) are fixed respectively on first spacing fixing base (517) and second spacing fixing base (518).

8. A GPU-based motion gesture video measurement device according to any of claims 5-7, characterized in that: illumination mechanism (508) include lamp house (523), light-passing board (524), snoot (525), LED lamp (526) and back case lid (527), and lamp house (523) are connected with pitch angle adjustment mechanism (507), and light-passing board (524), snoot (525), LED lamp (526) are fixed in lamp house (523) in proper order, and back case lid (527) are fixed on lamp house (523), and LED lamp (526) pass through signal connector (205) and are connected with main control panel (107).

9. A GPU-based motion gesture video measurement apparatus as claimed in claim 1, wherein: the number of the main control boards (107), the GPU processor (108) and the number of the image acquisition cards (109) are the same as that of the video acquisition devices (4), the main control boards (107) are connected through cables, each set of video acquisition device (4) is correspondingly connected with one set of image acquisition card (109) and one set of main control board (107), and the synchronous controller (2) and the illumination compensation device (5) are connected with one set of main control board (107).

10. A GPU-based motion gesture video measurement apparatus according to claim 1 or 9, wherein: the case comprises a case body (101), an upper cover (102), a front cover (103), a rear cover (104) and a lifting handle (105), wherein the upper cover (102) is fixed above the case body (101), the front cover (103) and the rear cover (104) are respectively fixed on the front surface and the back surface of the case body (101), and the lifting handle (105) is fixed on the side surface of the case body (101); a display hole is formed in the front cover (103), the display screen (110) is fixed to the front cover (103) and corresponds to the display hole, and shock-absorbing foot pads (106) are arranged on the front cover (103) and the rear cover (104).