Multimedia projection equipment fault diagnosis system

Abstract

The invention discloses a fault diagnosis system for multimedia projection equipment, and relates to the field of fault diagnosis systems, the fault diagnosis system comprises fault diagnosis equipment, the fault diagnosis equipment is connected with multimedia data source equipment, sending end equipment and projection equipment, and the fault diagnosis equipment comprises a fault diagnosis equipment sub-assembly. A camera, a colorimeter and an illuminometer are integrated in the fault diagnosis equipment sub-assembly and are respectively used for monitoring the blurring problem, color deviation and brightness of a projected image on the projection equipment. The fault diagnosis equipment sub-assembly used for monitoring the projection image on the projection equipment is further arranged above the supporting plate, and when the fault diagnosis equipment sub-assembly monitors that the projection equipment has any one of the fuzzy problem, the color deviation and the brightness, the projection equipment can be correspondingly and automatically adjusted through the fault diagnosis equipment; the blurring problem, the color deviation and the brightness of the projection equipment are solved.

Description

Technical Field

[0001] The present invention relates to the field of fault diagnosis systems, in particular to a multimedia projection equipment fault diagnosis system. Background Art

[0002] Multimedia projection equipment may have various faults during use, such as blurred images, color cast, insufficient brightness, and other problems.

[0003] Factors that cause these failures include: dirty lens and improper projection angle.

[0004] However, existing multimedia projection fault diagnosis systems usually only diagnose faults in the transmission system, and manual adjustment of the system is required after diagnosis. For example, the patent titled: Multimedia Projection Equipment and Multimedia Transmission System (patent application number: 201720788369.2) discloses a low-cost technology for a wireless audio and video transmission system; if the technology disclosed in: A Fault Diagnosis Method and Fault Diagnosis Device for a Device (patent application number: 202210276822.7) is used to diagnose the transmission system of the multimedia projection device, it can only diagnose the faults of the transmitted detection signal, and cannot diagnose and process other faults.

[0005] Therefore, it is necessary to propose a multimedia projection equipment fault diagnosis system to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a multimedia projection equipment fault diagnosis system to solve the problem that other faults other than the transmitted detection signal cannot be diagnosed and processed.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a multimedia projection equipment fault diagnosis system, comprising:

[0008] A fault diagnosis device connected to the multimedia data source device, the sending end device and the projection device;

[0009] The fault diagnosis device includes a fault diagnosis device subassembly, in which a camera, a colorimeter, and an illuminometer are integrated, respectively used to monitor blur, color deviation, and brightness of the projected image on the projection device;

[0010] The fault diagnosis device also includes a support plate, which is used for the overall support of the projection device. A base plate is movably provided above the support plate, and a mounting plate is provided above the base plate. Three telescopic components are provided between the base plate and the mounting plate, and the three telescopic components are distributed in a triangular shape. The telescopic component includes a telescopic cylinder and a telescopic rod. A push plate is fixedly provided at one end of the telescopic rod, and the push plate is slidably provided inside the telescopic cylinder. An end of the telescopic rod away from the push plate moves through the upper surface of the telescopic cylinder. An upper sphere is fixedly welded to the upper end of the telescopic rod, and a connecting rod is fixedly welded to the lower end of the telescopic cylinder. A lower sphere is fixedly welded to the end of the connecting rod, and an upper mounting seat and a lower mounting seat are respectively installed on the lower surface of the mounting plate and the upper surface of the base plate. A spherical inlay groove is provided on the side of the upper mounting seat and the lower mounting seat that are close to each other, and the upper sphere and the lower sphere are movably inlaid in the corresponding spherical inlay grooves. The end surfaces of the upper mounting seat and the lower mounting seat that are away from each other are movably fitted with rubber pads, and the outer rings of the ends of the upper mounting seat and the lower mounting seat that are away from each other are fixedly welded with mounting plates, and the mounting plates and rubber pads are fixed to the corresponding lower surface of the mounting plate or the upper surface of the base plate by screws.

[0011] Preferably, a fourth spring is fixedly welded to the lower surface of the push plate, and the lower end of the fourth spring is fixedly welded to the inner bottom surface of the telescopic cylinder. The push plate divides the interior of the telescopic cylinder into an upper chamber and a lower chamber distributed up and down. Matching air pipes are provided on both sides of the upper and lower ends of the telescopic cylinder. The two matching air pipes at the upper end are connected to the interior of the upper chamber, and the two matching air pipes at the lower end are connected to the interior of the lower chamber. One-way valves are provided in all four matching air pipes, and a solenoid valve is also provided in one of the matching air pipes at the lower end. An air pump is also fixedly installed on the upper surface of the support plate.

[0012] Preferably, a mounting groove is provided on the upper surface of the mounting plate, two clamps are symmetrically distributed in the mounting groove, a spring groove is provided on the inner wall of the mounting groove, a third spring is fixedly welded in the spring groove, the end of the third spring is fixedly welded to one end of the clamp, and an inclined surface is provided at the upper end position of the side where the two clamps are close to each other.

[0013] Preferably, an air bag is fixedly provided on one side of the two splints close to each other, and a pressure chamber is provided inside the air bag.

[0014] Preferably, a rectangular groove is provided inside one side of the mounting plate, and the upper end of the rectangular groove is connected to a rotating groove, and the rotating groove passes through the upper surface of the mounting plate, and a rotating plate is provided in the rectangular groove, and the upper end of the rotating plate extends out of the rotating groove, and a section of the rotating plate located in the rotating groove is rotatably connected to the rotating groove by a rotating rod, and a rubber sealing strip is fixedly provided at the lower end of the rotating plate, and the rubber sealing strip is movably fitted into the bottom surface of the rectangular groove, and the rotating plate divides the rectangular groove into an air inlet chamber and an air outlet chamber, and a first spring is fixedly welded on the inner wall of the side of the air outlet chamber away from the rotating plate, and the end of the first spring is fixedly welded to the side surface of the rotating plate, and a support plate is fixedly welded to the upper end of the rotating plate, and an air intake connecting pipe connected to the interior of the air inlet chamber is fixedly provided on the side of the mounting plate, and an exhaust pipe connected to the interior of the air outlet chamber is fixedly provided on the upper surface of the mounting plate.

[0015] Preferably, a rubber sealing pad is fixedly provided on the inner wall of the rotating groove, and the inner ring of the rubber sealing pad is fixedly provided on the outer periphery of the rotating plate.

[0016] Preferably, a cleaning assembly is also provided above the mounting plate, and the cleaning assembly includes a threaded rod, a cross beam, a vertical beam, a wiping cotton block and a second spring, and two threaded rods are provided, and the two threaded rods move simultaneously through the upper and lower surfaces of the support plate, and two second nuts are connected to the threaded rods by threaded cooperation, and the two second nuts are movably fitted on the upper and lower surfaces of the support plate respectively, and the cross beam is fixedly welded to the upper ends of the two threaded rods, and the vertical beam is fixedly welded to the upper surface of one end of the cross beam, and the wiping cotton block is provided on a side of the vertical beam close to the mounting groove, and the second spring is fixedly welded to a side of the vertical beam and the wiping cotton block close to each other, and the upper end of the exhaust pipe is provided toward the wiping cotton block.

[0017] Preferably, an adjusting screw is connected to the vertical beam through threaded engagement, and an end of the adjusting screw is movably fitted to a side of the wiping cotton block close to the vertical beam.

[0018] Preferably, a fixing plate is fixedly provided on one side of the upper surface of the base plate, an electric push rod is fixedly installed on the side of the fixing plate, and one end of the electric push rod away from the fixing plate is fixedly installed on the side of the base plate.

[0019] Preferably, a suspension rod is provided at each of the four corners of the support plate, an upper fixed plate is integrally provided at the upper end of the suspension rod, and the lower end of the suspension rod is movable through the upper and lower surfaces of the support plate at the same time. The lower end of the suspension rod is connected to two first nuts through threaded fitting, and the two first nuts are movable and fitted on the upper and lower surfaces of the support plate respectively.

[0020] Technical effects and advantages of the present invention:

[0021] 1. A fault diagnosis device subassembly for monitoring the image projected on the projection device is also provided above the support plate of the present invention. When the fault diagnosis device subassembly detects any one of blurring, color deviation, and brightness problems on the projection device, the fault diagnosis device can automatically adjust the projection device accordingly, so that the blurring, color deviation, and brightness problems on the projection device are resolved.

[0022] 2. When the telescopic rod is raised or lowered in the telescopic cylinder, the height and tilt of the mounting plate can be adjusted, thereby adjusting the height and tilt of the projection device when the fault diagnosis device subassembly detects any of the following problems: blurring, color deviation, and brightness of the projection device;

[0023] 3. The present invention achieves the purpose of using the driven gas as a power to wipe the lens surface when adjusting the angle of the projection device, and is convenient for wiping the lens through the fault diagnosis device when the fault diagnosis device sub-component monitors that the projection device has any of the following problems: blurring, color deviation and brightness, thereby solving the blurring problem, color deviation and brightness problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a diagram of a multimedia projection device fault diagnosis system according to the present invention.

[0025] Figure 2 This is a schematic structural diagram of the fault diagnosis device of the present invention from the first perspective.

[0026] Figure 3 This is a structural schematic diagram of the fault diagnosis device of the present invention from a second perspective.

[0027] Figure 4 This is a structural schematic diagram of the fault diagnosis device of the present invention from the third perspective.

[0028] Figure 5 This is a cross-sectional view from one perspective of the fault diagnosis device of the present invention.

[0029] Figure 6 This is a cross-sectional view from another perspective of the fault diagnosis device of the present invention.

[0030] Figure 7 For the present invention Figure 2 A magnified schematic diagram of the structure in the middle.

[0031] Figure 8 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0032] Figure 9 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C in the middle.

[0033] Figure 10 For the present invention Figure 5Enlarged schematic diagram of the structure at point D in the middle.

[0034] In the figure: 1. supporting plate; 2. bottom plate; 3. telescopic assembly; 4. mounting plate; 5. mounting groove; 6. clamping plate; 7. cleaning assembly; 8. fixing plate; 9. electric push rod; 10. suspension rod; 11. upper fixing plate; 12. first nut; 13. air pump; 14. supporting plate; 15. rotating plate; 16. rotating rod; 17. rotating groove; 18. rubber sealing gasket; 19. air inlet chamber; 20. air outlet chamber; 21. first spring; 22. rubber sealing strip; 23. threaded rod; 24. second nut; 25. air inlet connecting pipe; 26. exhaust pipe; 27. horizontal Beam; 28. Vertical beam; 29. ​​Adjusting screw; 30. Wiping cotton block; 31. Second spring; 32. Inclined surface; 33. Air bag; 34. Upper mounting seat; 35. Upper sphere; 36. Telescopic rod; 37. Telescopic cylinder; 38. Matching air pipe; 39. Lower sphere; 40. Lower mounting seat; 41. Mounting plate; 42. Rubber pad; 43. Pressure chamber; 44. Spring slot; 45. Third spring; 46. Spherical inlay slot; 47. Upper chamber; 48. Push plate; 49. Lower chamber; 50. Fourth spring; 51. One-way valve; 52. Solenoid valve; 53. Connecting rod. DETAILED DESCRIPTION

[0035] The present invention provides Figures 1-10 The multimedia projection device fault diagnosis system shown includes a fault diagnosis device, which is connected to a multimedia data source device, a sending end device and a projection device. The system and method for the fault diagnosis device in this application to diagnose the fault of the detection signal in the multimedia projection device are consistent with the existing patent: A fault diagnosis method and fault diagnosis device for a device (patent application number: 202210276822.7); and the multimedia data source device, the sending end device and the projection device are common components in the existing multimedia projection device. For details, please refer to the existing patent: Multimedia Projection Device and Multimedia Transmission System (patent application number: 201720788369.2).

[0036] However, the fault diagnosis equipment in the present invention also includes a support plate 1, which is used for the overall support of the projection equipment. Hanging rods 10 are provided at the four corners of the support plate 1, and an upper fixing plate 11 is integrally provided at the upper end of the hanging rod 10. The upper fixing plate 11 can be fixed to the ceiling by expansion screws. The four hanging rods 10 are used to hang and fix the support plate 1 in the air, which has strong stability; the lower end of the hanging rod 10 is movable through the upper and lower surfaces of the support plate 1 at the same time, and the lower end of the hanging rod 10 is connected to two first nuts 12 by threaded cooperation. The two first nuts 12 are respectively movably fitted on the upper and lower surfaces of the support plate 1. When the position of the first nut 12 is adjusted, the overall height of the support plate 1 can be changed, so that the height of the projection equipment is easy to adjust.

[0037] The present invention is provided with a bottom plate 2 movably above the support plate 1, a mounting plate 4 is provided above the bottom plate 2, and a mounting groove 5 is provided on the upper surface of the mounting plate 4. The projection device is fixed in the mounting groove 5. When the bottom plate 2 moves, the position of the projection device can be adjusted. Three telescopic components 3 are provided between the bottom plate 2 and the mounting plate 4. The three telescopic components 3 are distributed in a triangular shape. The three telescopic components 3 are telescopic. By telescoping the corresponding telescopic components 3, the inclination and height of the mounting plate 4 can be adjusted, thereby increasing the adjustment range of the projection device; it is convenient to adjust the projection angle of the projection device later. A fault diagnosis device subassembly for monitoring the projected image on the projection device is also provided above the support plate 1 in the present invention (not shown in the figure, those skilled in the art can install the fault diagnosis device subassembly at any position on the support plate 1 according to the actual installation position). The fault diagnosis device subassembly includes:

[0038] The camera can capture the image of the projected screen and analyze the clarity of the screen through image processing algorithms to determine whether there is a blur problem. In the automatic focus system, the camera can monitor the clarity of the screen in real time.

[0039] Image analyzers can perform multi-point measurements on the projected image, analyzing the details and edge features of the image. By comparing it with a standard-definition image, they can determine whether the image is blurry. During maintenance and inspection of projection equipment, image analyzers can quickly locate blurry areas and provide clarity data to help technicians make adjustments and repairs.

[0040] A colorimeter can measure the color parameters of the projected image, such as chromaticity coordinates and color temperature. By comparing them with standard color values, it can determine whether the image has color cast. During the calibration process of the projector, the colorimeter can accurately measure the color deviation of the image and guide the adjustment of the projector's color settings to achieve ideal color performance.

[0041] A spectrum analyzer can analyze the spectral distribution of the projected image, detect the intensity of light at different wavelengths, and determine whether the image has color deviation by analyzing the spectral data. In the color calibration of high-end projection equipment, a spectrum analyzer can provide detailed spectral information to help technicians make precise color adjustments to ensure the accuracy and consistency of the image color.

[0042] An illuminance meter can measure the light intensity (in lux) of the projected image. By measuring the light intensity at different locations on the projected image and calculating the average value, the overall brightness of the projected image can be obtained. In the brightness test of the projection equipment, the illuminance meter can quickly measure the brightness of the image and compare it with the nominal brightness of the equipment to determine whether the brightness meets the requirements.

[0043] The brightness sensor can monitor the brightness changes of the projected image in real time. By placing the sensor at a suitable position on the projected image, the brightness data can be continuously measured. In the automatic brightness adjustment system of the projection device, the brightness sensor can monitor the ambient light intensity and image brightness in real time.

[0044] It should be noted that the specific devices in the fault diagnosis equipment sub-components can be adjusted according to the actual application scenario, but should include at least three types: camera, colorimeter and illuminometer, which are used to determine whether there are blur problems, color deviation and brightness respectively. They can also be replaced by other devices.

[0045] When the fault diagnosis device subcomponent detects that the projection device has any of the following problems: blurring, color deviation, and brightness, the projection device can be automatically adjusted accordingly through the fault diagnosis device so that the blurring, color deviation, and brightness of the projection device are resolved.

[0046] Among them, the specific structure of the telescopic assembly 3 includes a telescopic cylinder 37 and a telescopic rod 36, one end of the telescopic rod 36 is fixedly provided with a push plate 48, the push plate 48 is slidably provided inside the telescopic cylinder 37, and the end of the telescopic rod 36 away from the push plate 48 moves through the upper surface of the telescopic cylinder 37, the upper end of the telescopic rod 36 is fixedly welded with an upper sphere 35, the lower end of the telescopic cylinder 37 is fixedly welded with a connecting rod 53, and the end of the connecting rod 53 is fixedly welded with a lower sphere 39. The lower surface of the mounting plate 4 and the upper surface of the base plate 2 are respectively installed with an upper mounting seat 34 and a lower mounting seat 40, and the upper mounting seat 34 and the lower mounting seat 40 are both provided with a spherical inlay groove 46 on the side close to each other. 35 and the lower sphere 39 are movably embedded in the corresponding spherical embedding groove 46, and the end surfaces of the upper mounting seat 34 and the lower mounting seat 40 that are away from each other are movably fitted with a rubber pad 42, and the outer circles of the ends of the upper mounting seat 34 and the lower mounting seat 40 that are away from each other are fixedly welded with a mounting plate 41, and the mounting plate 41 and the rubber pad 42 are fixed to the corresponding lower surface of the mounting plate 4 or the upper surface of the base plate 2 by screws; when the telescopic rod 36 is raised and lowered in the telescopic cylinder 37, the height and inclination of the mounting plate 4 can be adjusted, so as to adjust the height and inclination of the projection device when the fault diagnosis device subassembly detects any one of the blurring problems, color deviation and brightness of the projection device.

[0047] Specifically:

[0048] When the height of the mounting plate 4 needs to be adjusted, the three telescopic rods 36 can be raised and lowered synchronously to adjust the height of the mounting plate 4 .

[0049] When the inclination of the mounting plate 4 needs to be adjusted, the three telescopic rods 36 can be extended to different heights to adjust the inclination of the mounting plate 4, so as to facilitate correction according to the actual required inclination.

[0050] It should be noted that when the telescopic rod 36 is raised or lowered, the upper sphere 35 and the lower sphere 39 can rotate in the corresponding spherical embedding groove 46 to adapt to the overall tilt of the telescopic assembly 3.

[0051] There are two clamping plates 6 symmetrically distributed in the mounting groove 5. When the projection device is placed in the mounting groove 5, it is clamped by the two clamping plates 6. A spring groove 44 is provided on the inner wall of the mounting groove 5. A third spring 45 is fixedly welded in the spring groove 44. The end of the third spring 45 is fixedly welded to one end of the clamping plate 6. An inclined surface 32 is provided at the upper end position of the side where the two clamping plates 6 are close to each other. When the projection device is placed in the mounting groove 5, the two side surfaces of the bottom of the projection device are against the inclined surface 32, so that the two clamping plates 6 are separated from each other. The elastic force of the third spring 45 presses the clamping plate 6 against the side of the projection device, forming a preliminary fixation.

[0052] Furthermore, an airbag 33 is fixedly provided on one side of the two clamps 6 that are close to each other, and a pressure chamber 43 is provided inside the airbag 33. The pressure chamber 43 is filled with high-pressure gas. When the projection device is clamped between the two clamps 6, the pressure chamber 43 can be compressed, so that the projection device is clamped between the two clamps 6, and the friction resistance between the airbag 33 and the surface of the projection device is large, so that the stability of the projection device when clamped is improved. After the airbag 33 on the two clamps 6 is used to clamp the projection device, the elastic force of the third spring 45 is used to clamp the clamp 6 to the projection device, which further avoids the phenomenon of the projection device detaching from between the two clamps 6 and increases the stability of the projection device clamped between the two clamps 6.

[0053] A rectangular groove is provided inside one side of the mounting plate 4, and a rotating groove 17 is provided at the upper end of the rectangular groove. The rotating groove 17 passes through the upper surface of the mounting plate 4, and a rotating plate 15 is provided in the rectangular groove. The upper end of the rotating plate 15 extends out of the rotating groove 17. A section of the rotating plate 15 located in the rotating groove 17 is rotatably connected to the rotating groove 17 by a rotating rod 16. A rubber sealing strip 22 is fixedly provided at the lower end of the rotating plate 15. The rubber sealing strip 22 is movably fitted on the bottom surface of the rectangular groove, and the rotating plate 15 divides the rectangular groove into The air chamber 19 and the air outlet chamber 20 are fixedly welded with a first spring 21 on the inner wall of the air outlet chamber 20 away from the rotating plate 15. The end of the first spring 21 is fixedly welded to the side of the rotating plate 15. The upper end of the rotating plate 15 is fixedly welded with a support plate 14. The side of the mounting plate 4 is fixedly provided with an air intake connecting pipe 25 communicating with the interior of the air intake chamber 19. The upper surface of the mounting plate 4 is fixedly provided with an exhaust pipe 26 communicating with the interior of the air outlet chamber 20. A fourth spring 5 is fixedly welded on the lower surface of the push plate 48. 0, the lower end of the fourth spring 50 is fixedly welded to the inner bottom surface of the telescopic cylinder 37, and the push plate 48 divides the interior of the telescopic cylinder 37 into an upper chamber 47 and a lower chamber 49 distributed vertically. The upper and lower ends of the telescopic cylinder 37 are both provided with matching air pipes 38 on both sides; a cleaning assembly 7 is also provided above the mounting plate 4, and the cleaning assembly 7 includes a threaded rod 23, a crossbeam 27, a vertical beam 28, a wiping cotton block 30 and a second spring 31. There are two threaded rods 23, and the two threaded rods 23 move simultaneously through the support plate 14 The upper and lower surfaces of the threaded rod 23 are connected to two second nuts 24 by threaded fitting, and the two second nuts 24 are movably fitted on the upper and lower surfaces of the support plate 14 respectively. The crossbeam 27 is fixedly welded to the upper ends of the two threaded rods 23, and the vertical beam 28 is fixedly welded to the upper surface of one end of the crossbeam 27. The wiping cotton block 30 is arranged on the side of the vertical beam 28 close to the mounting groove 5. The second spring 31 is fixedly welded to the side of the vertical beam 28 and the wiping cotton block 30 close to each other, and the upper end of the exhaust pipe 26 is arranged toward the wiping cotton block 30.

[0054] The two cooperating air pipes 38 at the upper end are in communication with the interior of the upper chamber 47, and the two cooperating air pipes 38 at the lower end are in communication with the interior of the lower chamber 49. A one-way valve 51 is provided in each of the four cooperating air pipes 38, and a solenoid valve 52 is also provided in one of the cooperating air pipes 38 at the lower end. An air pump 13 is also fixedly mounted on the upper surface of the support plate 1, and the air pump 13 is provided with an air inlet end and an air outlet end. The cooperating air pipe 38 at the lower end of the telescopic cylinder 37 is only provided with a one-way valve 51, and the air inlet end of the air pump 13 is connected by a hose. A cooperating air pipe 38 at the upper end of the telescopic cylinder 37 and another cooperating air pipe 38 at the lower end of the telescopic cylinder 37 have a solenoid valve 52. 2 are connected to the air inlet connecting pipe 25 through a hose, and another matching air pipe 38 at the upper end of the telescopic cylinder 37 is connected to the outside of the telescopic cylinder 37. When the air pump 13 is started, the air pump 13 inflates the lower chamber 49, thereby pushing the push plate 48 up, realizing the rising operation of the telescopic rod 36. When the solenoid valve 52 is opened, the air in the lower chamber 49 is discharged from the matching air pipe 38 at the corresponding position, and the fourth spring 50 pulls the push plate 48 to return to its original position, realizing the descending operation of the push plate 48. When the push plate 48 rises and falls, the telescopic rod 36 rises and falls synchronously, thereby adjusting the height and inclination of the mounting plate 4.

[0055] Furthermore, when the push plate 48 rises, the air in the upper chamber 47 can be discharged into the air intake connecting pipe 25 through the matching air pipe 38 connected to the air intake connecting pipe 25. After the air in the air intake connecting pipe 25 enters the air intake chamber 19, it can push the lower end of the rotating plate 15 to rotate with the rotating rod 16 as the axis. When the rotating plate 15 rotates toward the air outlet chamber 20, the first spring 21 can be compressed, so that the support plate 14 at the upper end of the rotating plate 15 is tilted in the direction away from the air outlet chamber 20. Since the cleaning component 7 is arranged on the support plate 14, the cleaning component 7 on the support plate 14 is tilted in the direction away from the air outlet chamber 20, so that the wiping cotton block 30 is attached to the lens surface of the projection device for wiping. The present invention achieves the purpose of using the driven gas as power to wipe the lens surface when adjusting the angle of the projection device, and is convenient for wiping the lens through the fault diagnosis device when the fault diagnosis device sub-component detects any one of the blurring problems, color deviation and brightness of the projection device, thereby solving the blurring problems, color deviation and brightness problems.

[0056] Furthermore, when the gas in the air inlet chamber 19 pushes the rotating plate 15 to rotate toward the air outlet chamber 20, a gap is formed between the lower end of the rotating plate 15 and the inner wall of the lower end of the rectangular groove. After the gas pushes the rotating plate 15 to rotate, it enters the air outlet chamber 20 through the gap. At this time, the first spring 21 pushes the rotating plate 15 to reset. After the rotating plate 15 is reset, the gas entering the air inlet chamber 19 is used to continue to push the rotating plate 15 to rotate, thereby achieving the purpose of reciprocating rotation of the rotating plate 15, so that the wiping cotton block 30 can wipe the lens of the projection equipment reciprocatingly, and the wiping effect is good.

[0057] The gas entering the air outlet chamber 20 is discharged from the exhaust pipe 26. Since the upper end of the exhaust pipe 26 is set toward the wiping cotton block 30, the gas discharged from the exhaust pipe 26 will blow away the dust on the wiping cotton block 30, so that the wiping cotton block 30 is always kept clean, thereby better wiping the lens of the projection equipment, which is particularly suitable for automatic cleaning of high-place projection equipment.

[0058] It should be noted that due to the L-shaped structure formed between the horizontal beam 27 and the vertical beam 28, the wiping cotton block 30 on one side of the vertical beam 28 is just located on the side of the projection device lens, which does not affect the use of projection. Only when the wiping cotton block 30 moves back and forth can the purpose of cleaning the projection device lens be achieved.

[0059] It should also be noted that another matching air pipe 38 at the upper end of the telescopic cylinder 37 is connected to the outside of the telescopic cylinder 37. The one-way valve 51 in this matching air pipe 38 allows external gas to enter the interior of the upper chamber 47 in one direction. When the push plate 48 returns downward inside the telescopic cylinder 37, the external gas enters the upper chamber 47 for replenishment through the corresponding one-way valve 51 in the matching air pipe 38. When the push plate 48 returns downward inside the telescopic cylinder 37, the push plate 48 can also press the gas in the lower chamber 49 into the air intake connecting pipe 25 through a matching air pipe 38 with a solenoid valve 52, thereby achieving the purpose of supplying air to the air intake connecting pipe 25 when the telescopic rod 36 is extended and retracted upward and downward.

[0060] Taking into account the different sizes of projection equipment and slightly different lens positions on the projection equipment, an adjusting screw 29 is connected to the vertical beam 28 through a threaded fit, and the end of the adjusting screw 29 is movably fitted on the side of the wiping cotton block 30 close to the vertical beam 28. By rotating the adjusting screw 29, the front and rear positions of the wiping cotton block 30 can be adjusted, and by rotating the second nut 24, the overall height of the wiping cotton block 30 can be adjusted, which is convenient for adjustment and adaptation.

[0061] A rubber sealing gasket 18 is fixedly provided on the inner wall of the rotating groove 17 , and the inner ring of the rubber sealing gasket 18 is fixedly provided on the outer periphery of the rotating plate 15 . The rubber sealing gasket 18 is used to seal between the rotating groove 17 and the rotating plate 15 to ensure that there is no air leakage in the rotating groove 17 .

[0062] A fixing plate 8 is fixedly provided on one side of the upper surface of the base plate 2, and an electric push rod 9 is fixedly installed on the side of the fixing plate 8. The end of the electric push rod 9 away from the fixing plate 8 is fixedly installed on the side of the base plate 2. When the base plate 2 is pushed to move by the electric push rod 9, the position of the mounting plate 4 and the entire projection equipment can be adjusted over a large distance, which is convenient and practical.

Claims

1. A multimedia projection equipment fault diagnosis system, characterized in that: include: A fault diagnosis device connected to the multimedia data source device, the sending end device and the projection device; The fault diagnosis device includes a fault diagnosis device subassembly, in which a camera, a colorimeter, and an illuminometer are integrated, respectively used to monitor blur, color deviation, and brightness of the projected image on the projection device; The fault diagnosis device further comprises a support plate (1), the support plate (1) being used for supporting the entire projection device, a bottom plate (2) being movably provided above the support plate (1), a mounting plate (4) being provided above the bottom plate (2), three telescopic assemblies (3) being provided between the bottom plate (2) and the mounting plate (4), the three telescopic assemblies (3) being distributed in a triangular shape, the telescopic assembly (3) comprising a telescopic cylinder (37) and a telescopic rod (36), one end of the telescopic rod (36) being fixedly provided with a push plate (48), the push plate (48) being slidably provided inside the telescopic cylinder (37), the end of the telescopic rod (36) away from the push plate (48) being movable through the upper surface of the telescopic cylinder (37), the upper end of the telescopic rod (36) being fixedly welded with an upper sphere (35), and the lower end of the telescopic cylinder (37) being fixedly welded with a connecting rod (53) The end of the connecting rod (53) is fixedly welded with a lower sphere (39), and the lower surface of the mounting plate (4) and the upper surface of the bottom plate (2) are respectively installed with an upper mounting seat (34) and a lower mounting seat (40), and the sides of the upper mounting seat (34) and the lower mounting seat (40) close to each other are provided with a spherical inlay groove (46), and the upper sphere (35) and the lower sphere (39) are movably inlaid in the corresponding spherical inlay groove (46), and the end surfaces of the upper mounting seat (34) and the lower mounting seat (40) away from each other are movably fitted with a rubber pad (42), and the outer rings of the ends of the upper mounting seat (34) and the lower mounting seat (40) away from each other are fixedly welded with a mounting plate (41), and the mounting plate (41) and the rubber pad (42) are fixed to the lower surface of the corresponding mounting plate (4) or the upper surface of the bottom plate (2) by screws.

2. The multimedia projection equipment fault diagnosis system according to claim 1, characterized in that: A fourth spring (50) is fixedly welded to the lower surface of the push plate (48), and the lower end of the fourth spring (50) is fixedly welded to the inner bottom surface of the telescopic cylinder (37). The push plate (48) divides the interior of the telescopic cylinder (37) into an upper chamber (47) and a lower chamber (49) distributed up and down. Matching air pipes (38) are provided on both sides of the upper and lower ends of the telescopic cylinder (37). The two matching air pipes (38) at the upper end are connected to the interior of the upper chamber (47), and the two matching air pipes (38) at the lower end are connected to the interior of the lower chamber (49). A one-way valve (51) is provided in each of the four matching air pipes (38), and a solenoid valve (52) is also provided in one of the matching air pipes (38) at the lower end. An air pump (13) is also fixedly installed on the upper surface of the support plate (1).

3. The multimedia projection equipment fault diagnosis system according to claim 1, characterized in that: The upper surface of the mounting plate (4) is provided with a mounting groove (5), two clamping plates (6) are symmetrically distributed in the mounting groove (5), a spring groove (44) is provided on the inner wall of the mounting groove (5), a third spring (45) is fixedly welded in the spring groove (44), an end of the third spring (45) is fixedly welded to one end of the clamping plate (6), and an inclined surface (32) is provided at the upper end position of the surface where the two clamping plates (6) are close to each other.

4. The multimedia projection equipment fault diagnosis system according to claim 3, characterized in that: An air bag (33) is fixedly provided on one side of the two clamping plates (6) close to each other, and a pressure chamber (43) is provided inside the air bag (33).

5. The multimedia projection equipment fault diagnosis system according to claim 1, characterized in that: A rectangular groove is provided inside one side of the mounting plate (4), and a rotating groove (17) is provided at the upper end of the rectangular groove. The rotating groove (17) passes through the upper surface of the mounting plate (4). A rotating plate (15) is provided in the rectangular groove. The upper end of the rotating plate (15) extends out of the rotating groove (17). A section of the rotating plate (15) located in the rotating groove (17) is rotatably connected to the rotating groove (17) through a rotating rod (16). A rubber sealing strip (22) is fixedly provided at the lower end of the rotating plate (15). The rubber sealing strip (22) is movably fitted on the bottom surface of the rectangular groove. The plate (15) divides the rectangular groove into an air inlet chamber (19) and an air outlet chamber (20); a first spring (21) is fixedly welded on the inner wall of the air outlet chamber (20) away from the rotating plate (15); the end of the first spring (21) is fixedly welded to the side of the rotating plate (15); a support plate (14) is fixedly welded to the upper end of the rotating plate (15); an air inlet connecting pipe (25) communicating with the interior of the air inlet chamber (19) is fixedly provided on the side of the mounting plate (4); and an exhaust pipe (26) communicating with the interior of the air outlet chamber (20) is fixedly provided on the upper surface of the mounting plate (4).

6. The multimedia projection equipment fault diagnosis system according to claim 5, characterized in that: A rubber sealing pad (18) is fixedly arranged on the inner wall of the rotating groove (17), and the inner circle of the rubber sealing pad (18) is fixedly arranged on the outer periphery of the rotating plate (15).

7. The multimedia projection equipment fault diagnosis system according to claim 5, characterized in that: A cleaning assembly (7) is also provided above the mounting plate (4), and the cleaning assembly (7) includes a threaded rod (23), a crossbeam (27), a vertical beam (28), a wiping cotton block (30) and a second spring (31). The threaded rod (23) is provided with two, and the two threaded rods (23) move through the upper and lower surfaces of the support plate (14) at the same time. Two second nuts (24) are connected to the threaded rod (23) by threaded engagement, and the two second nuts (24) are respectively movably fitted on the upper and lower surfaces of the support plate (14). The crossbeam (27) is fixedly welded to the upper ends of the two threaded rods (23), and the vertical beam (28) is fixedly welded to the upper surface of one end of the crossbeam (27). The wiping cotton block (30) is provided on a side of the vertical beam (28) close to the mounting groove (5). The second spring (31) is fixedly welded to a side where the vertical beam (28) and the wiping cotton block (30) are close to each other. The upper end of the exhaust pipe (26) is provided toward the wiping cotton block (30).

8. The multimedia projection equipment fault diagnosis system according to claim 6, characterized in that: The vertical beam (28) is connected to an adjusting screw (29) through threaded engagement, and the end of the adjusting screw (29) is movably fitted to a side of the wiping cotton block (30) close to the vertical beam (28).

9. The multimedia projection equipment fault diagnosis system according to claim 1, characterized in that: A fixing plate (8) is fixedly provided on one side of the upper surface of the base plate (2), an electric push rod (9) is fixedly installed on the side of the fixing plate (8), and an end of the electric push rod (9) away from the fixing plate (8) is fixedly installed on the side of the base plate (2).

10. The multimedia projection equipment fault diagnosis system according to claim 1, characterized in that: A suspension rod (10) is provided at each of the four corners of the support plate (1), and an upper fixing plate (11) is integrally provided at the upper end of the suspension rod (10). The lower end of the suspension rod (10) is movable and passes through the upper and lower surfaces of the support plate (1) at the same time. The lower end of the suspension rod (10) is connected to two first nuts (12) through threaded engagement, and the two first nuts (12) are movably fitted on the upper and lower surfaces of the support plate (1) respectively.

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