WO2021109545A1 - Système de maintenance automatisé pour dispositif d'affichage en mosaïque et procédé de positionnement pour mécanisme de déverrouillage - Google Patents

Système de maintenance automatisé pour dispositif d'affichage en mosaïque et procédé de positionnement pour mécanisme de déverrouillage Download PDF

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Publication number
WO2021109545A1
WO2021109545A1 PCT/CN2020/097415 CN2020097415W WO2021109545A1 WO 2021109545 A1 WO2021109545 A1 WO 2021109545A1 CN 2020097415 W CN2020097415 W CN 2020097415W WO 2021109545 A1 WO2021109545 A1 WO 2021109545A1
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WO
WIPO (PCT)
Prior art keywords
display unit
disassembly
positioning
unlocking
control
Prior art date
Application number
PCT/CN2020/097415
Other languages
English (en)
Chinese (zh)
Inventor
王朝
潘利强
朱卫强
Original Assignee
深圳蓝普科技有限公司
深圳市上隆智控科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 深圳蓝普科技有限公司, 深圳市上隆智控科技有限公司 filed Critical 深圳蓝普科技有限公司
Publication of WO2021109545A1 publication Critical patent/WO2021109545A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

Definitions

  • This application relates to the field of LEDs, in particular to an automatic maintenance system of a spliced display device and a positioning method of an unlocking mechanism.
  • LED Light Emitting Diode (light-emitting diode) large screen is basically composed of splicing display device module screens assembled into a box, and then multiple boxes are spliced into a large LED screen.
  • Mosaic display device maintenance especially outdoor splicing display device maintenance, including display unit installation, display unit replacement, splicing display device failure detection, display unit and splicing display device installation quality determination, etc., currently generally pass It is done manually by engineering and technical personnel. These maintenance work processes are cumbersome, the work content is repetitive, and in some cases the working environment is harsh, and at the same time, it also has a certain degree of danger.
  • the purpose of this application is to provide an automatic maintenance system for spliced display devices and a positioning method for unlocking mechanisms, which can realize automatic maintenance of display units of spliced display devices, reduce the workload of display unit maintenance, and reduce maintenance work. Dangerous, improve the maintenance quality of the spliced display device.
  • an automated maintenance system for a spliced display device includes a number of display units.
  • the system includes a transmission device, a disassembly and assembly device, a positioning device, and a control device; wherein:
  • the transmission device is used to fix the disassembly and assembly device, and move the disassembly and assembly device relative to the splicing display device according to the control instruction of the control device;
  • the disassembling and disassembling device is used to fix or disassemble the display unit according to the control instruction of the control device;
  • the positioning device is configured to provide positioning operations for the transmission device and the disassembly device according to the control instruction of the control device;
  • the control device sends control signals to the transmission device, the disassembling device, and the positioning device.
  • a positioning method of an unlocking mechanism the method is used for disassembling a display unit, and the method includes:
  • the transmission device transports the disassembly and assembly device to the position of the disassembly and assembly display unit to realize the rough positioning of the disassembly and assembly device and the corresponding display unit object;
  • the detection device scans the unlocking hole of the disassembly and assembly display unit according to the control instruction of the control device to obtain the image information of the unlocking hole; Calculating the error between the unlocking mechanism and the unlocking hole, the unlocking mechanism corrects the position of the unlocking mechanism according to the error information, so that the unlocking mechanism can be accurately inserted into the unlocking hole.
  • a positioning method of an unlocking mechanism is used to install a display unit and includes:
  • the transmission device transports the disassembly and assembly device to the position of the display unit to be installed, so as to realize the rough positioning of the disassembly and assembly device and the corresponding display unit object;
  • the detection device scans the lock mechanism at the installation position according to the control instruction of the control device to obtain image information of the lock mechanism
  • the detection device acquires the image of the lock mechanism, calculates the error between the lock mechanism and the lock of the disassembly device of the display unit, and the unlock mechanism corrects the position of the lock mechanism according to the error information, so that the lock mechanism and The locks of the disassembly and assembly device of the display unit match.
  • the present application proposes an automatic maintenance system for a spliced display device and a positioning method for an unlocking mechanism.
  • the spliced display device includes several display units, and the system includes: a transmission device, a disassembly device, a positioning device, and a control device; wherein: The transmission device is used to fix the disassembly and assembly device, and move the disassembly and assembly device relative to the splicing display device according to the control instruction of the control device; the disassembly and assembly device is used to move the disassembly and assembly device according to the control device The display unit is fixed or disassembled by the control instructions; the positioning device is used to provide positioning operations for the transmission device and the disassembly device according to the control instructions of the control device; the control device is the transmission The device, the disassembling and assembling device, and the positioning device send control signals.
  • the automatic maintenance system of the spliced display device of the present application it is possible to replace manual labor to complete the maintenance of the display unit of the automatic spliced display device, which can reduce the maintenance workload of the display unit and reduce the risk of maintenance work.
  • the display unit failure can be found in time during the use of the spliced display device, and then automatic replacement can be carried out to improve the maintenance quality of the display unit.
  • FIG. 1 is a schematic structural diagram of an automated maintenance system for a splicing display device provided by an embodiment of the application;
  • FIG. 2 is a schematic structural diagram of a transmission device provided by an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a disassembly and assembly device provided by an embodiment of the application
  • FIG. 4 is a schematic structural diagram of a clamping and positioning structure provided by an embodiment of the application.
  • FIG. 5 is a schematic cross-sectional structure diagram of a clamping and positioning structure provided by an embodiment of the application.
  • FIG. 6 is a schematic structural diagram of a fixing and positioning structure for fixing a display unit according to an embodiment of the application
  • FIG. 7 is a schematic structural diagram of a fixing and positioning structure for fixing a display unit according to an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of an electromagnetic spring latch provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of an electromagnetic spring lock provided in an embodiment of the application in a contracted state
  • FIG. 10 is a schematic diagram of an electromagnetic spring latch provided by an embodiment of the application in an open state
  • FIG. 11 is a schematic diagram of an electromagnetic spring latch provided by an embodiment of the application in an open state
  • FIG. 12 is a schematic structural diagram of a detection device provided by an embodiment of the application.
  • FIG. 13 is a schematic diagram of an application structure of an automated maintenance system for a spliced display device provided by an embodiment of the application.
  • the display unit 800 includes a display unit body 810, a plurality of unlocking holes 820 and a square steel 830.
  • the unlocking holes 820 are arranged around the front of the display unit body 810.
  • the square steel 830 is arranged at the top and rear end of the display unit body 810, and a reserved hole 832 is provided on the square steel 830.
  • the splicing display device is composed of several display units 800 spliced on a steel structure 900.
  • a locking mechanism for locking and fixing each display unit 800 is provided on the steel structure 900.
  • the locking mechanism is matched with the unlocking hole 820.
  • the multiple display units 800 are locked on the steel structure 900, so that the multiple display units 800 are spliced on the steel structure 900 to form a monolithic spliced display device 700.
  • the present application provides an automated maintenance system for a spliced display device.
  • the spliced display device includes several display units.
  • the system 100 includes: a transmission device 10, a disassembly and assembly device 20, and a positioning device.
  • the transmission device 10 is used to fix the assembling and disassembling device 20, and to move the assembling and disassembling device 20 relative to the splicing display device according to the control instruction of the control device 50;
  • the dismounting device 20 is used for fixing or dismounting the display unit according to the control instruction of the control device 50.
  • the positioning device 30 is used to provide positioning operations for the transmission device 10 and the disassembling device 20 according to the control instructions of the control device 50.
  • the detection device 40 is installed on the disassembly and assembly device 20, and is used to collect and obtain the image information of the spliced display device according to the control instruction of the control device 50, identify and calculate and process the image information, obtain the test result of the quality of the spliced display device, and provide feedback ⁇ 50 ⁇ Give the control device 50.
  • the control device 50 is respectively connected to the transmission device 10, the disassembly and assembly device 20, the positioning device 30, and the detection device 40. According to the detection result of the detection device, the transmission device 10, the disassembly and assembly device 20, the positioning device 30, and the detection device 40 Send a control signal.
  • the automatic maintenance system of the spliced display device of the present application it is possible to replace manual labor to complete the maintenance of the display unit of the automatic spliced display device, which can reduce the maintenance workload of the display unit and reduce the risk of maintenance work.
  • the display unit failure is discovered in time, and then automated replacement is carried out to improve the maintenance quality of the display unit.
  • the transmission device 10 includes: a transverse transmission device 11 and a longitudinal transmission device 12. among them:
  • the lateral transmission device 11 is used to drive the disassembly and assembly device 20 to move laterally relative to the splicing display device according to the control instruction of the control device 50.
  • the transverse transmission device 11 includes at least: a crane device 111, a transverse rail device 112, and a crane drive device (not shown).
  • the horizontal rail device 112 is installed on the upper edge of the spliced display device or behind the upper part of the spliced display device.
  • the crown block driving device drives the crown block device 111 to move laterally along the horizontal rail device 112 according to the control instructions of the control device 50.
  • the cooperation of the crown block device 111 and the horizontal rail device 112 can drive the disassembly and assembly device 20 in splicing. Horizontal movement in front of the display device.
  • the crane driving device is a driving motor.
  • the horizontal rail device 112 includes a horizontal rail 1121 and a supporting mechanism 1122 (as shown in FIG. 13).
  • the horizontal guide rail 1121 is installed on the spliced display device or behind the upper part of the spliced display device, and spans the direction of the entire spliced display device, and is used to allow the crane device 111 to move laterally along the horizontal guide rail 1121, so that the sky
  • the car device 111 can move from the left end of the screen to the right end of the screen or from the right end of the screen to the left end of the screen, thereby driving the disassembly and assembly device 20 to move laterally on the screen.
  • the supporting mechanism 1122 is used to fix and support the lateral guide rail 1121 on the steel structure 900.
  • the lateral guide rail 1121 is an I-steel guide rail.
  • the crown block device 111 is driven by the crown block driving device 113 to move laterally along the lateral guide rail 1121.
  • the crown block device 111 is fixedly engaged with the dismounting device 20.
  • the crown block device 111 hides the dismounting device 20 behind the splicing display device, or makes the dismounting device 20 overturn to The front of the spliced display device moves in front of the spliced display device.
  • the crane device 111 includes: a crane 1111, a cable rail storage box 1112, a lifting device 1113, a cable outlet module 1114, and a cantilever device 1115.
  • the cable rail storage box 1112 and the lifting device 1113 are installed on the crane 1111 in sequence
  • the cable outlet module 1114 and the cantilever device 1115 are installed on the lifting device 1113 in sequence.
  • the cable rail storage box 1112 is used for storing cable rails.
  • the crane 1111 moves laterally along the lateral guide rail 1121 and controls the retracting and unwinding of the cable rail stored in the cable rail storage box 1112.
  • the cable outlet module 1114 is provided with a first sliding mechanism 11141
  • the cantilever device 1115 is provided with a second sliding mechanism 11153.
  • the cable rail from the cable rail storage box 1112 can pass through the first sliding mechanism 11141 and the second sliding mechanism 11153 in sequence without any obstacle.
  • the first sliding mechanism 11141 and the second sliding mechanism 11153 may be pulleys.
  • a number of driving wheels (not shown) and a number of small wheels (not shown) are installed at the bottom of the crown block 1111, and the plurality of driving wheels are installed at the front and rear ends of the bottom of the crown block 1111 to drive other small wheels to move laterally.
  • the crown block 1111 is meshed with the lateral guide rail 1121, and the meshing form is to hide the driving wheel and the small wheel on the crown block 1111 inside the I-steel guide rail to prevent the driving wheel and the small wheel from loosening.
  • the lifting device 1113 is used to fix and install the cantilever device 1115, and to lift the cantilever device 1115 according to the control instruction of the control device 50, raise the cantilever device 1115 to a certain height, and make the cantilever device 1115 pull the disassembly device 20 It is higher than the spliced display device, or the cantilever device 1115 is lowered to a certain height, so that the disassembly and assembly device 20 pulled by the cantilever device 1115 is hidden behind the spliced display device.
  • the lifting device 1113 includes a lifting device 11131, a number of lifting arms 11132, and a lifting platform 11133.
  • the lifter 11131 is installed on the side of the crane 1111, and drives a number of lift arms 11132 to lift up and down according to the instructions of the control device 50.
  • One end of the lifting arms 11132 is installed in the lifter 11131, and the other end is fixedly installed with the lifting platform 11133.
  • the lifter 11131 is installed and connected with the lifting platform 11133 through a number of lifting arms 11132, and is used to control the lifting of the lifting arm according to the control command of the control device 50, so as to achieve the lifting of the cantilever device 1115.
  • the cable outlet module 1114 is installed on the lifting platform 11133.
  • the cantilever device 1115 is installed on the lifting platform 11133 and includes a cantilever rod 11151 and a rotating shaft 11152. One end of the cantilever rod 11151 is installed with the rotating shaft 11152, and the other end is installed with the second sliding mechanism 11153.
  • the rotating shaft 11152 is installed on the lifting platform 11133.
  • the cantilever rod 11151 is mounted on the lifting platform 11133 through the rotation shaft 11152, so that the cantilever rod 11151 can rotate around the rotation shaft 11152.
  • the assembling and disassembling device 20 can be hidden behind the splicing display device, and when necessary, the assembling and disassembling device 20 can be turned over to the front of the splicing display device.
  • the form of flipping includes at least one of the following: flipping from the upper edge of the spliced display device, flipping from the side edge of the spliced display device, flipping from the inside of the spliced display device, and flipping from below the spliced display device.
  • the longitudinal transmission device 12 is used to move the disassembly and assembly device 20 in the longitudinal direction of the splicing display device.
  • the longitudinal transmission device 12 includes a cable rail 121 and a pulling device 122.
  • the cable rail 121 is stored in the cable rail storage box 1112, and the overhead crane drives the cable rail to be retracted and retracted according to the control command of the control device 50. It can be retracted from the cable rail storage box 1112 without obstacles, passes through the first sliding mechanism 11141 and the second sliding mechanism 11153 in sequence, and is connected to the traction device 122.
  • the traction device 122 is installed at one end of the cable rail 121 and is used to cooperate with the fixed end reserved at the bottom of the steel structure, so that the cable rail 121 is stretched straight.
  • the cable rail 121 is stably engaged with the assembling and disassembling device 20, so that the assembling and disassembling device 20 is stably fixed and engaged on the cable rail 121.
  • the meshing form is that the cable rail 121 meshes with the wheels of the dismounting device, and its forms include but not limited to toothed wheels, threaded wheels, flat wheels, etc.
  • the meshing enables the dismounting device 20 to be stably fixed on the cable rail 121 while supporting disassembly.
  • the movement of the mounting device 20 on the cable track includes climbing and descending processes.
  • the cantilever device In the process of turning the disassembly and assembly device 20 to the front of the splicing display device, the cantilever device is raised to a certain height by controlling the lifting of several lifting arms installed on the circumference of the overhead crane, so that the disassembly and assembly device pulled by the cantilever device is high Out splicing display device.
  • the cantilever rod of the cantilever device is tilted forward, the disassembly and assembly device can be moved to the front of the splicing display device; if the cantilever rod is tilted backward, the disassembly and assembly device can be moved to the rear of the splicing display device.
  • the overhead crane controls the cable rail in the cable rail storage box to continuously lengthen according to the control instruction of the control device 50, so that the disassembling and assembling device engaged with the cable rail is constantly changing due to the cable rail Long and continuous descending.
  • the traction device installed at the end of the cable track matches the fixed end reserved at the bottom of the steel structure to stretch the cable track straight.
  • the detection device and disassembly device will proceed to the next step.
  • the force to straighten the cable rail does not need to be great, just ensure that the cable rail does not swing to a certain extent due to the external environment.
  • the disassembly device is adsorbed on the splicing display device, its adsorption force can also be higher. Almost overcome the tension caused by the straight cable track.
  • the overhead crane controls the cable rail in the cable rail storage box to lengthen a short length according to the control instruction of the control device 50, so that the traction device and the clamping structure of the steel structure are loosened. Then the control cable track is continuously contracted, so that the disassembly and assembly device engaged in the cable track continuously rises due to the continuous shortening of the cable track.
  • the fixed end reserved at the bottom of the steel structure that is, the bayonet position along the end of the cable rail under the screen, is arranged on a guide rail, so that when the overhead crane moves laterally, the cable rail as a whole can follow. It moves laterally.
  • the fixed end can be locked by hook lock, electromagnetic or other forms.
  • the horizontal direction of the spliced display device is the X axis
  • the vertical direction is the Y axis
  • the height is the Z axis.
  • the crane is to solve the X-axis displacement of the disassembly device
  • the cable rail is to solve the disassembly device.
  • the cantilever rod solves the Z-axis displacement work of the disassembly device and the detection device.
  • the movement control of different axes is distinguished by different structures.
  • the movement control of the X-axis is provided by the horizontal movement of the crane.
  • the work of the crane drive device and the work of the reducer are the keys to control the accuracy of the movement. It is necessary to ensure the accuracy of the movement distance of the crane. Ensure that the transmission device moves accurately in the X-axis direction.
  • the disassembling and assembling device 20 is used to stably fix the display unit.
  • the disassembly device 20 installs the display units one by one on the steel structure, and in the process of disassembling the spliced display device, disassembles each display unit from the steel structure, as well as daily During maintenance work, a faulty display unit is removed from the steel structure.
  • the disassembly and assembly device can realize the disassembly and installation of the display unit on the steel structure, and avoid the wear caused by direct contact with the display unit.
  • the disassembly and assembly device 20 includes a clamping positioning structure 21, an adsorption device 22, an unlocking mechanism 23, and a clamping fixing structure 24.
  • the clamping and fixing structure 24 can stably fix the display unit, and includes a frame 241 and a guide rail (not shown) provided in the frame 241.
  • the guide rail is used to slide the display unit into the frame 241.
  • the frame 241 is used to stably fix the display unit.
  • the clamping positioning structure 21 is fixedly installed on the clamping fixing structure 24, specifically fixedly installed on one side of the frame 241 of the clamping fixing structure 24, for clamping and fixing with the top of the display unit 810, specifically
  • the fixing position is on the square steel 830 at the top and rear end of the display unit 810, so that the display unit is stably fixed on the clamping and positioning structure 21.
  • the clamping and positioning structure is fixedly installed on the square steel at the rear end of the display unit to realize the clamping of the display unit, and the wear of the display unit caused by the direct contact between the display unit and the square steel is avoided.
  • the clamping and positioning structure 21 includes an electromagnetic spring lock 211, a base 212, a lifting bearing plate 213, a lifting spring 214, a bearing beam 215, and a control docking stud 216. among them:
  • the electromagnetic spring latch 211 is installed at the lower part of the clamping and positioning structure 21, can be nested in the frame 241, and is used to cooperate with the reserved hole 832 on the square steel 830 of the display unit. Insert into the reserved hole 832 to complete the clamping and clamping operation of the clamping and positioning structure, so that the display unit can be stably fixed to the clamping and positioning structure.
  • the lifting spring 214 is used to provide elastic force for the electromagnetic spring lock 211, so that the electromagnetic spring lock 211 can be raised and lowered more quickly.
  • the lifting receiving plate 213 is used to fix the electromagnetic spring latch 211 and provide a lifting operation for the electromagnetic spring latch 211 so that the electromagnetic spring latch 211 can be lifted and lowered with the lifting of the lifting receiving plate 213.
  • the lifting receiving plate 213 adopts one of the following to realize the lifting operation of the electromagnetic spring latch 211: using lifting rods, screw rods, electromagnetic adsorption, and rope pulling.
  • the lifting spring 214 is in a compressed state and provides a reaction force.
  • the disassembly device 20 overcomes the reaction force brought by the lifting spring 214 to complete the disassembly device 20
  • the purpose of lifting is to align the electromagnetic spring latch 211 with the reserved hole 832 of the square steel 830 of the display unit. After the lifting force disappears, the electromagnetic spring latch 211 can be directly and quickly snapped into the reserved hole 832 , Realize the positioning installation of the display unit.
  • the receiving beam 215 is fixed on the base 212 and is used to bear the pulling force from the lifting receiving plate 213 and the elastic force of the lifting spring 214.
  • the control docking stud 216 is used to cooperate with the control device 50 to receive the control signal sent by the control device 50 to realize the control of the electromagnetic spring latch 211.
  • the specific process is: when the electromagnetic spring latch 211 is inserted into the reserved hole 832 of the square steel 830, the electromagnetic spring latch 211 is subjected to electromagnetic adsorption force during the insertion process, and the clamp plate will shrink to a position smaller than the aperture. After passing through the reserved hole 832, the electromagnetic coil is de-energized, the magnetism disappears, and the card plate is stretched out of the aperture by the elastic force of the spring, so that the display unit is fixed on the clamping and fixing structure, and the fixing of the display unit is completed.
  • the base 212 is used to provide the electromagnetic spring latch 211 with a restraining force for restraining the card board, and to wrap the entire clamping and positioning structure, and encapsulate the entire clamping and positioning structure as a whole.
  • the electromagnetic spring latch 211 includes a positioning stud 2111, a top shell 2112, an electromagnetic coil 2113, an iron core 2114, a telescopic frame base 2115, a telescopic frame 2116, a spring 2117, a clamping plate 2118, and a bottom shell 2119.
  • the positioning stud 2111 is located on the top of the electromagnetic spring latch 211 and is screwed into the lifting receiving plate 213 for positioning cooperation, so that the electromagnetic spring latch 211 can rise and fall with the lifting of the lifting receiving plate 213.
  • the top shell 2112 is used to match the reserved hole 832 of the square steel 830 on the display unit during the clamping and positioning process.
  • the iron core 2114 is connected under the top case 2112 and is used to wind the electromagnetic coil 2113 so that the electromagnetic coil 2113 can generate electromagnetic attraction force when it is energized.
  • the telescopic frame 2116 cooperates with the spring 2117 to quickly push the card board 2118 outward to complete the opening action.
  • the telescopic frame base 2115 is located outside the iron core 2114 and provides support for the telescopic frame 2116.
  • the card board 2118 is nested on the end of the electromagnetic spring lock 211, and when extended, it can cooperate with the square steel 830 at the rear end of the display unit to achieve clamping and fixing.
  • the bottom shell 2119 is used to provide a supporting force for the telescopic frame base 2115 during the clamping process, so as to prevent the telescopic frame 2116 and the telescopic frame base 2115 from being broken during the clamping process.
  • the electromagnetic spring latch 211 has two states: a contracted state and an expanded state. The difference between these two states lies in the contraction and expansion of the card board 2118.
  • the electromagnetic spring lock 211 is in a contracted state, that is, the card plate 2118 is contracted to within the overall size of the electromagnetic spring lock 211;
  • Figures 10 and 11 show the opening of the electromagnetic spring lock State, that is, the card board 2118 is expanded beyond the overall size of the electromagnetic spring latch 211.
  • half of the protruding part of the card board 2118 will accept the square steel surface to hold up the entire display unit or position the display unit.
  • the contraction and expansion of the electromagnetic spring latch 211 depends on whether the electromagnetic coil 2113 is energized.
  • the electromagnetic coil 2113 When the electromagnetic coil 2113 is energized, a strong electromagnetic adsorption force is generated in the electromagnetic coil 2113, and the clamping plate 2118 Contracted by the electromagnetic attraction, at this time, the card plate 2118 shrinks to within the overall size of the electromagnetic spring lock 211, so that the electromagnetic spring lock 211 is separated from the square steel reserved hole of the display unit, and the display unit is fixed from the clamp
  • the structure is disassembled to complete the disassembly of the display unit.
  • the elastic force of the spring 2117 can quickly push the card plate 2118 outwards to complete the opening action, so that the card plate 2118 is expanded beyond the overall size of the electromagnetic spring lock 211.
  • Half of the protruding part of the card board 2118 will accept the square steel surface, hold up the entire display unit or position the display unit, so that the display unit is fixed on the clamping and fixing structure, and the fixing of the display unit is completed.
  • the suction device 22 is installed on the outer edge of the frame 241 of the clamping and fixing structure 24, and is stably engaged with the cable rail 121, so that the suction device 22 is stably fixed and engaged on the cable rail 121, and the engagement form is the suction device 22 and the cable rail 121.
  • the wheel meshing of 121 includes, but is not limited to, toothed wheels, threaded wheels, flat wheels, etc. The meshing enables the adsorption device 22 to be stably fixed on the cable rail 121 while supporting the movement of the adsorption device 22 on the cable rail 121. Movement includes climbing and descent processes.
  • the adsorption device 22 includes a telescopic device 221, a permanent magnet 222 and a number of electromagnets 223.
  • the telescopic device 221 includes an X-shaped telescopic arm 2211, the telescopic arm 2211 can be telescoped from the center to the periphery to form an X shape, and the telescopic range of the telescopic arm 2211 is adapted to the size of the display unit.
  • the telescopic arm 2211 has a telescopic range larger than the display unit that needs to be disassembled, specifically, the inner edge of the telescopic arm 2211 is exactly the outer edge of the four legs of the display unit.
  • the detection device 40 is installed in the center of the X-shaped telescopic arm 2211.
  • the permanent magnet 222 is relatively weak in magnetism, and is nested on the detection device 40, and first contacts and adsorbs on the screen;
  • the several electromagnets 223 are strong in magnetism, and can generate strong adsorption force after being energized, and are respectively nested in the X-shaped telescopic arm
  • the top ends of the 2211 are used to perform energization and adsorption according to the instructions of the control device 50 after the expansion device 221 completes the clamping size adaptation to generate a strong adsorption force, which can adsorb the display unit without falling, thereby completing the display unit The adsorption action.
  • the unlocking mechanism 23 is set on the suction device 22, and the specific position is set on each top end of the X-shaped telescopic arm 2211 of the telescopic device 221.
  • the unlocking mechanism 23 includes an unlocking pin 231, a telescopic mechanism (not shown), and a rotating electric machine (not shown).
  • the unlocking pin 231 is accommodated in the telescopic mechanism, and is used for inserting into the unlocking hole 820 of the display unit to unlock the display unit from the steel structure.
  • the telescopic mechanism can expand and contract according to the instructions of the control device 50, when unlocking, it extends outwards, and after unlocking is completed, it contracts inwards.
  • the rotating motor is used to drive the unlocking pin 231 to rotate in a preset direction, so that the unlocking pin 231 is drawn out from the unlocking hole 820.
  • the preset direction is a counterclockwise direction
  • the rotating motor drives the unlocking pin 231 to rotate in a counterclockwise direction, so that the unlocking pin 231 is withdrawn from the unlocking hole 820.
  • a locking mechanism for locking each display unit is provided on the steel structure.
  • a number of unlocking holes 820 (for example, 4 unlocking holes) matching the above-mentioned locking mechanism are preset on the surrounding positions in the front of the display unit. By inserting the unlocking pin into the unlocking hole 820, you can insert the unlocking pin into the unlocking hole 820.
  • the display unit is unlocked from the locking mechanism of the steel structure.
  • four unlocking holes 820 are preset in the four corners of the front of the display unit, and the aperture size of each unlocking hole is 2 mm.
  • the unlocking pin 231 is arranged on the suction device 22, and the specific position is arranged on each top end of the X-shaped telescopic arm 2211 of the telescopic device 221, which matches the position of the unlocking hole of the display unit.
  • the shaft diameter of the unlocking pin 231 is equal to or slightly smaller than the aperture of the unlocking hole 820 of the display unit, and the number of the unlocking pin 231 matches the number of the unlocking hole 820.
  • the telescopic mechanism extends outward according to the instruction of the control device, so that the unlocking pin is inserted into the corresponding unlocking hole, and the display unit can be removed from the steel
  • the structure is unlocked in the locking mechanism.
  • the display unit is slowly pulled out by the force of the unlocking pin and the unlocking hole. Because the inner edge of the frame of the clamping and fixing structure of the disassembly and assembly device is reserved with a corresponding guide rail, the display unit can be smaller The resistance of ⁇ pulls the display unit out in the Z-axis direction, so the matching force of the unlocking pin and the unlocking hole can pull the display unit out.
  • the electromagnetic spring lock in the disassembly device is inserted into the reserved hole on the square steel of the display unit.
  • the electromagnetic spring lock When the electromagnetic spring lock is inserted into the reserved hole of the square steel, the electromagnetic spring locks
  • the lock When the lock is inserted by the electromagnetic attraction force, its card board will shrink to a position smaller than the aperture. After passing through the reserved hole, the electromagnetic coil will be de-energized and the magnetism will disappear.
  • the card board will be stretched out of the aperture by the spring force.
  • Half of the protruding part will accept the square steel surface of the display unit, hold up the entire display unit or position the display unit, and realize the fixation of the display unit on the clamping and fixing structure to complete the fixation of the display unit.
  • the permanent magnet of the adsorption device is in light contact with the surface of the display unit. Due to the weak magnetism of the permanent magnet, the force of the permanent magnet in contact with the surface of the spliced display device in the display unit is not very large, so that the display unit and the adsorption device Slow contact is a buffer for the strong adsorption of the electromagnet, and will not damage the spliced display device in the display unit.
  • the electromagnet is energized to adsorb the display unit, so that the adsorption device and the display unit cooperate with each other ,
  • the display unit is fixedly adsorbed on the suction device of the disassembly and assembly device.
  • the control device controls the rotating motor to drive the unlocking pin to rotate counterclockwise, and controls the telescopic mechanism to contract inward, so as to withdraw the unlocking pin from the unlocking hole.
  • the adsorption device adsorbs the display unit that needs to be installed, and is moved by the conveying device to the positioned steel structure installation position.
  • the electromagnetic coil of the electromagnetic spring lock After reaching the installation position, when the electromagnetic coil of the electromagnetic spring lock is energized, the electromagnetic coil generates a strong electromagnetic attraction force, which causes the card plate to shrink to within the overall size of the electromagnetic spring lock by the electromagnetic attraction force, so that the electromagnetic spring lock is separated.
  • the square steel reserved hole of the display unit allows the electromagnetic spring latch to be withdrawn from the display unit, so that the display unit can be disassembled from the clamping and fixing structure, and the disassembly of the display unit is completed.
  • the display unit can be slid into the installation position of the steel structure along the guide rails, and the corresponding latch and steel structure on the display unit The locking mechanism cooperates to complete the installation of the display unit on the steel structure.
  • the positioning device 30 is used to provide positioning for the transmission device 10 and the disassembling device 20, and includes: a transmission device positioning module and an unlocking mechanism positioning module 32. among them:
  • the transmission device positioning module is installed on the transmission device 10 and includes a first pressure sensor 311, an angle sensor 312, and a second pressure sensor 313.
  • the first pressure sensor 311 is installed on the crown block 1111, and is used to obtain the displacement information on the X axis and feed it back to the control device 50 when the small wheel of the crown block 1111 is pressed on the corresponding position on the lateral guide rail;
  • the sensor 312 is installed at the rotation axis 11152 of the cantilever device 1115 to obtain the rotation angle of the cantilever rod 11151 and feed back the rotation angle information to the control device 50.
  • the control device 50 calculates the end of the cantilever rod 11151 according to the rotation angle information.
  • the position information of the cable track is fed back to the control device 50, and the control device calculates the position information of the detection device 40 in the longitudinal direction of the screen according to the position information, and obtains the position information of the Y axis.
  • the control device After obtaining the relevant information of the first pressure sensor 311, the angle sensor 312, and the second pressure sensor 313, it is possible to detect the specific position information such as the position of the device and how much distance it has displaced during the working process of the transmission device, and then combine these The position information is fed back to the control device in time, so that the control device can make control instructions in time based on the information to improve the positioning accuracy.
  • the unlocking mechanism positioning module 32 is installed on the unlocking mechanism 23 of the disassembly and assembly device 20 for precise positioning of the unlocking mechanism 23. Specifically, the unlocking pin 231 of the unlocking mechanism is accurately positioned so that the unlocking pin 231 can be Insert the unlocking hole accurately.
  • the entire positioning process of the unlocking mechanism positioning module 32 is divided into three stages: the first stage is that the transmission device 10 transports the disassembly and assembly device 20 to the disassembly and assembly display unit (fault display unit) or the position where the display unit is to be installed to realize disassembly. Rough positioning of the installation device and the corresponding display unit object.
  • the second stage is that after the suction device is adsorbed on the spliced display device, the detection device scans the unlocking hole of the disassembling and disassembling display unit to obtain image information of the unlocking hole.
  • the third stage is that the detection device calculates the error between the unlocking pin and the unlocking hole based on the acquired unlocking hole image.
  • the unlocking mechanism positioning module corrects the position of the unlocking pin according to the error information, and then makes the unlocking pin accurate Insert it into the unlocking hole. Therefore, accurate positioning is provided for the subsequent disassembly of the faulty display unit and the installation of the replacement display unit.
  • the positioning process of the unlocking mechanism positioning module 32 in the third phase is for the lock of the steel structure.
  • the image acquisition and correction of the buckle mechanism includes: acquiring the image of the buckle mechanism, calculating the error between the buckle mechanism and the unlocking hole of the display unit, and the unlocking mechanism positioning module corrects the position of the buckle mechanism according to the error information, so that The locking mechanism is matched with the unlocking hole of the display unit, thereby providing precise positioning for subsequent installation of the replacement display unit.
  • the scanning method of the detection device is to scan the screen line by line through the transmission device.
  • the line spacing can be divided according to the size of the display unit module.
  • the scanning process should have a round-trip feature, that is, taking into account the scanning path when the device returns. The round-trip path is combined into the overall scanning range of the device.
  • the detection device 40 is installed on the disassembly and assembly device 20, and the specific installation position is on the center of the X-type telescopic device of the suction device. It is used to collect the image information of the display unit of the spliced display device, identify and process the image information, and obtain Display unit quality test results.
  • the detection device 40 includes an information collection device 41 and an information processing device 42.
  • the information collection device 41 is used to collect and acquire image information of the display unit according to the control instruction of the control device 50 and transmit it to the information processing device 42; the information processing device 42. Used to process the image information of the display unit collected by the information collection device 41 to obtain the detection result of the image quality of the display unit, and feed back the detection result to the control device 50.
  • the information collection device 41 includes a light source 411, a camera 412, and a sending card 413.
  • the light source 411 adopts a built-in LED light source for lighting the camera 412,
  • the camera 412 is used to perform lighting shooting with a built-in LED light source to obtain image information of the display unit, and to send the captured image information to the information processing device 42 through a sending card 412.
  • the information processing device 42 includes a receiving card 421 and a calculation module 422, and the receiving card 421 is in communication connection with the calculation module 422.
  • the receiving card 421 is used to receive the image information of the display unit sent from the sending card 413 of the information collection device 41, and send it to the calculation module 421; the calculation module 421 is used to identify and calculate and process the image information according to the received image information Image information, check and compare the quality information of the display unit, and confirm whether there are detection results such as dead lights, bright spots, and caterpillars in the display unit.
  • the receiving card 421 is also used to feed back the detection result to the control device 50.
  • the detection device is based on machine vision technology and is divided into four processes: image information acquisition, image preprocessing, image recognition and information feedback.
  • the image information collection process is to capture the surface image information of the display unit through the camera, and the natural environment will be isolated to a certain extent during the shooting process;
  • the image preprocessing process is to reduce the noise of the captured image photos;
  • the image recognition process is through image recognition
  • the method performs image recognition on the image preprocessed by the image, and the recognition can include information such as screen failure information, location information, and temperature;
  • the information feedback process is to feed back the recognition result to the control device for the next maintenance work after the image recognition is completed.
  • the image recognition method can adopt the existing image recognition method, which will not be described in detail in this application.
  • the scanning method of the detection device is to scan the screen line by line through the transmission device.
  • the line spacing can be divided according to the size of the display unit module.
  • the scanning process should have a round-trip feature, that is, taking into account the scanning path when the device returns. The round-trip path is combined into the overall scanning range of the device.
  • the control device 50 is respectively connected to the transmission device 10, the disassembly and assembly device 20, the positioning device 30, and the detection device 40. According to the detection result of the detection device, the transmission device 10, the disassembly and assembly device 20, the positioning device 30, and the detection device 40 Send a control signal.
  • the spliced display device automatic maintenance system further includes a posture stabilizing device 60 which is installed on the assembling and disassembling device 20 and is stably engaged with the cable rail 121. It is used to perform posture stabilization operations for the detection device 40 and the disassembly device 20 during the operation of the transmission device, so as to eliminate the error caused by the shift of the center of gravity of the detection device 40 and the disassembly device 20 when moving.
  • a posture stabilizing device 60 which is installed on the assembling and disassembling device 20 and is stably engaged with the cable rail 121. It is used to perform posture stabilization operations for the detection device 40 and the disassembly device 20 during the operation of the transmission device, so as to eliminate the error caused by the shift of the center of gravity of the detection device 40 and the disassembly device 20 when moving.
  • This application provides an automated maintenance system for spliced display devices.
  • the control device issues control instructions to the transmission device to control the lifting of several lifting arms installed around the overhead crane to lift the cantilever device To a certain height, the disassembly and assembly device pulled by the cantilever device is higher than the splicing display device, and the cantilever rod of the cantilever device inclines forward to move the disassembly and assembly device from the rear of the splicing display device to the front of the splicing display device.
  • the overhead crane controls the cable rail in the cable rail storage box to continuously lengthen according to the control command of the control device, so that the disassembly and assembly device engaged on the cable rail continuously decreases due to the continuous lengthening of the cable rail.
  • the traction device installed at the end of the cable rail cooperates with the clamping structure reserved at the bottom of the steel structure to straighten the cable rail.
  • the control device sends a control instruction to the detection device, so that the information collection device of the detection device collects and acquires the image information of the mosaic display device according to the preset mosaic display device maintenance plan, and transmits it to the information processing device; the information processing device processes the information collected by the information collection device
  • the image information of the splicing display device is obtained, and the detection result of the image quality of the splicing display device is obtained, and the detection result is fed back to the control device, and with the cooperation of the transmission device, the detection device is moved horizontally or vertically.
  • the unlocking mechanism positioning module of the positioning device is used to accurately position the unlocking mechanism installed on the disassembly device.
  • the telescopic mechanism is controlled according to the control
  • the instruction of the device extends outwards, so that the unlocking pin is inserted into the corresponding unlocking hole, and the display unit can be unlocked from the locking mechanism of the steel structure.
  • the display unit is slowly pulled out by the force of the unlocking pin and the unlocking hole. Because the inner edge of the frame of the clamping and fixing structure of the disassembly and assembly device is reserved with a corresponding guide rail, the display unit can be smaller The resistance of ⁇ pulls the display unit out in the Z-axis direction, so the matching force of the unlocking pin and the unlocking hole can pull the display unit out.
  • the electromagnetic spring lock in the disassembly device is inserted into the reserved hole on the square steel of the display unit.
  • the electromagnetic spring lock When the electromagnetic spring lock is inserted into the reserved hole of the square steel, the electromagnetic spring locks
  • the lock When the lock is inserted by the electromagnetic attraction force, its card board will shrink to a position smaller than the aperture. After passing through the reserved hole, the electromagnetic coil will be de-energized and the magnetism will disappear.
  • the card board will be stretched out of the aperture by the spring force.
  • Half of the protruding part will accept the square steel surface of the display unit, hold up the entire display unit or position the display unit, and realize the fixation of the display unit on the clamping and fixing structure to complete the fixation of the display unit.
  • the permanent magnet of the adsorption device is in light contact with the surface of the display unit. Due to the weak magnetism of the permanent magnet, the force of the permanent magnet in contact with the surface of the spliced display device in the display unit is not very large, making the display unit and the adsorption device Slow contact is a buffer for the strong adsorption of the electromagnet, and will not damage the spliced display device in the display unit.
  • the electromagnet is energized to adsorb the display unit, so that the adsorption device and the display unit cooperate with each other ,
  • the display unit is fixedly adsorbed on the suction device of the disassembly and assembly device.
  • the control device controls the rotating motor to drive the unlocking pin to rotate counterclockwise, and controls the telescopic mechanism to contract inward, so as to withdraw the unlocking pin from the unlocking hole.
  • the control device controls the transmission device to move, and transfers the disassembled display unit to the display unit replacement library.
  • the disassembly and assembly device grabs the replacement display unit from the display unit replacement library, and inserts the electromagnetic spring latch of the clamping positioning structure into the reserved hole of the square steel of the display unit, the electromagnetic spring latch is subjected to electromagnetic adsorption force during the insertion process Function, the card board will shrink to a position smaller than the aperture. After passing through the reserved hole, the electromagnetic coil will be de-energized and the magnetism will disappear. The card board will be stretched out of the aperture by the elastic force of the spring to realize the fixation of the display unit on the clamping and fixing structure. , Complete the fixation of the display unit.
  • the adsorption device adsorbs the display unit that needs to be replaced, and is moved by the conveyor to the positioned steel structure installation position.
  • the electromagnetic coil of the electromagnetic spring lock After reaching the installation position, when the electromagnetic coil of the electromagnetic spring lock is energized, the electromagnetic coil generates a strong electromagnetic attraction force, which causes the card plate to shrink to within the overall size of the electromagnetic spring lock by the electromagnetic attraction force, so that the electromagnetic spring lock is separated
  • the square steel reserved hole of the display unit allows the electromagnetic spring latch to be withdrawn from the display unit, so that the display unit can be disassembled from the clamping and fixing structure, and the disassembly of the display unit is completed.
  • the display unit can be slid into the installation position of the steel structure along the guide rails, and the corresponding latch and steel structure on the display unit The locking mechanism cooperates to complete the installation of the display unit on the steel structure.
  • This application provides an automated maintenance system for a spliced display device.
  • the installation can be carried out according to a preset installation sequence. For example, the display unit at the lower right corner of the spliced display device is installed first, and then the installation path can be It can be installed horizontally or vertically. The subsequent display unit is installed, and finally the upper left display unit is installed.
  • the disassembly and assembly device grabs the display unit to be installed from the display unit installation library, and inserts the electromagnetic spring latch of the clamping positioning structure into the reserved hole of the square steel of the display unit, and the electromagnetic spring latches During the insertion process, the card board will shrink to a position smaller than the aperture. After passing through the reserved hole, the electromagnetic coil will be de-energized and the magnetism will disappear. The card board will be stretched out of the aperture by the elastic force of the spring to realize the display The unit is fixed on the clamping fixing structure to complete the fixing of the display unit.
  • the adsorption device adsorbs the display unit that needs to be replaced, and is moved by the conveyor to the positioned steel structure installation position.
  • the electromagnetic coil of the electromagnetic spring lock After reaching the installation position, when the electromagnetic coil of the electromagnetic spring lock is energized, the electromagnetic coil generates a strong electromagnetic attraction force, which causes the card plate to shrink to within the overall size of the electromagnetic spring lock by the electromagnetic attraction force, so that the electromagnetic spring lock is separated
  • the square steel reserved hole of the display unit allows the electromagnetic spring latch to be withdrawn from the display unit, so that the display unit can be disassembled from the clamping and fixing structure, and the disassembly of the display unit is completed.
  • the display unit can be slid into the installation position of the steel structure along the guide rails, and the corresponding latch and steel structure on the display unit
  • the locking mechanism cooperates to complete the installation of a single display unit on the steel structure. After that, the installation of the remaining display units is completed in accordance with the installation process of the above single LED according to the preset installation sequence.
  • the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.
  • a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.
  • the present application proposes an automatic maintenance system for a spliced display device and a positioning method for an unlocking mechanism.
  • the spliced display device includes several display units, and the system includes: a transmission device, a disassembly device, a positioning device, and a control device; wherein: The transmission device is used to fix the disassembly and assembly device, and move the disassembly and assembly device relative to the splicing display device according to the control instruction of the control device; the disassembly and assembly device is used to move the disassembly and assembly device according to the control device The display unit is fixed or disassembled by the control instructions; the positioning device is used to provide positioning operations for the transmission device and the disassembly device according to the control instructions of the control device; the control device is the transmission The device, the disassembling and assembling device, and the positioning device send control signals.
  • the automatic maintenance system of the spliced display device of the present application it is possible to replace manual labor to complete the maintenance of the display unit of the automatic spliced display device, which can reduce the maintenance workload of the display unit and reduce the risk of maintenance work.
  • the display unit failure can be found in time during the use of the spliced display device, and then automatic replacement can be carried out to improve the maintenance quality of the display unit.

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Abstract

L'invention concerne un système de maintenance automatisé pour un dispositif d'affichage en mosaïque (700) et un procédé de positionnement pour un mécanisme de déverrouillage (23), le dispositif d'affichage en mosaïque (700) comprenant une pluralité d'unités d'affichage (800). Le système de maintenance automatisé comprend un dispositif de transmission (10), un dispositif de démontage (20), un dispositif de positionnement (30) et un dispositif de commande (50), le dispositif de transmission (10) servant à fixer le dispositif de démontage (20) et à amener le dispositif de démontage (20) à se déplacer par rapport au dispositif d'affichage en mosaïque (700) en fonction d'une instruction de commande provenant du dispositif de commande (50) ; le dispositif de démontage (20) sert à fixer ou à démonter les unités d'affichage (800) en fonction d'une instruction de commande provenant du dispositif de commande (50) ; le dispositif de positionnement (30) sert à fournir une fonctionnalité de positionnement pour le dispositif de transmission (10) et le dispositif de démontage (20) en fonction d'une instruction de commande provenant du dispositif de commande (50) ; et le dispositif de commande (50) envoie des signaux de commande au dispositif de transmission (10), au dispositif de démontage (20) et au dispositif de positionnement (30).
PCT/CN2020/097415 2019-12-04 2020-06-22 Système de maintenance automatisé pour dispositif d'affichage en mosaïque et procédé de positionnement pour mécanisme de déverrouillage WO2021109545A1 (fr)

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