Air conditioner control HMI touch screen overhauling device and overhauling method

By embedding a control system and camera module into the HMI touchscreen maintenance device controlled by the air conditioner, the maintenance process is automatically recorded and judged, solving the problems of inconvenient and inefficient tool management, realizing automated tool management and automatic generation of maintenance reports, and improving maintenance efficiency.

CN117532561BActive Publication Date: 2026-05-01CHENGDU CRRC SIFANG RAILWAY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU CRRC SIFANG RAILWAY CO LTD
Filing Date
2023-11-16
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

During the repair of air conditioner touch screens, tool management is inconvenient and inefficient, easily leading to tool loss or damage, and the repair process is cumbersome, affecting efficiency.

Method used

An air conditioning control HMI touch screen maintenance device was designed, which includes a tool holder, an operating table, and a judgment display box. The device automatically records the maintenance process using an embedded control system and a camera module, determines the operation steps through an image judgment model, controls the extension and retraction of the tool holder, and generates a maintenance report.

Benefits of technology

It automates tool management, improves maintenance efficiency, reduces the risk of tool loss, and automatically generates maintenance reports, making it suitable for inexperienced employees.

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Abstract

The application discloses an air conditioner control HMI touch screen overhauling device and an overhauling method, relates to the technical field of maintenance equipment, and aims to solve the problems that the prior art cannot effectively manage tools in the overhauling process and improve overhauling efficiency; the application comprises a tool containing box, an operation table and a judgment display box, the tool containing box and the judgment display box are electrically connected, the operation table is arranged below the judgment display box, and the operation table is slidably connected with a movable plate; the application can record the situation in the overhauling process and judge whether the operation is qualified at any time through the embedded control system and the photographing module, the tools in the overhauling process can be effectively managed through the connection between the tool containing box and the embedded control system, the tools do not need to be specially stored, and an overhauling report can be automatically generated according to the photos in the overhauling process after the overhauling is completed.
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Description

Technical Field

[0001] This invention relates to the field of maintenance equipment technology, specifically to a maintenance device and method for an air conditioning control HMI touchscreen. Background Technology

[0002] In factory workshops, a certain number of air conditioners are installed to ensure the working environment for employees while also meeting specific production requirements. However, existing air conditioner touchscreens tend to malfunction after a period of use, with various causes, but most often involving damage to the internal display, such as stripes, freezing, or black screens. Replacing the entire touchscreen is costly; a more efficient approach is to repair it by replacing only the internal display and making necessary adjustments. However, this repair process involves multiple tools and steps. Tools may be lost accidentally during the alternating use of them, and operational errors may not only prevent repair but also damage the touchscreen. Furthermore, the repair process requires constant photographic documentation and report writing, all of which impact efficiency. Therefore, effectively managing tools and improving repair efficiency are problems that need to be addressed. Summary of the Invention

[0003] To address the problems existing in the prior art, the present invention provides an air conditioning control HMI touch screen maintenance device and method, which aims to solve the problem that the prior art cannot effectively manage the tools in the maintenance process and improve maintenance efficiency.

[0004] An air conditioning control HMI touchscreen maintenance device includes a tool holder, an operating table, and a judgment display box. The tool holder is located above the judgment display box, and the operating table is located below the judgment display box. The judgment display box includes a housing, a camera module, and an embedded control system. The embedded control system is located inside the housing, and the camera module is located at the bottom of the housing. The camera module and the tool holder are electrically connected to the embedded control system. The camera module is used to take pictures of the operating table and transmit them to the embedded control system. The embedded control system is used to judge the content of the pictures and generate corresponding instructions to control the tool holder based on the judgment results.

[0005] Preferably, the embedded control system includes an image determination model, which is used to compress and determine the content of the photo and return the determination result to the embedded control system.

[0006] Preferably, the tool container is provided with multiple tool compartments, which are slidably connected to the bottom of the container body. One end of each tool compartment is fixedly connected to the side wall of the container body via an electric telescopic rod. Each electric telescopic rod is electrically connected to the judgment and display box. The embedded control system changes the power supply of the electric telescopic rods according to different situations, thereby controlling the pop-out and retraction of the tool compartments.

[0007] Preferably, the operating table has a groove, and a movable plate is provided in the groove. The end of the movable plate near the judgment display box is fixedly connected to one end of the groove by a spring. After the photo is taken, the movable plate can return to its original position by itself after the staff releases the force.

[0008] Preferably, sensors are provided on both sides of the camera module; when the movable plate is pushed under the judgment display box, the sensors sense the signal and transmit it to the embedded control system, which can then control the camera module to take pictures without manually activating the camera module.

[0009] Preferably, the judgment display box includes a display screen, and the embedded control system includes a report generation model. The report generation model is used to collect pictures and judgment results from the entire maintenance process after the maintenance is completed, generate a corresponding maintenance report, and return it to the embedded control system.

[0010] Preferably, the tool holder has a detachable cover on top, which facilitates placing the tools into the corresponding holder.

[0011] A method for servicing an air conditioning control HMI touchscreen includes: placing the touchscreen to be serviced on a movable plate of an operating table and pushing it under a judgment display box; after the judgment display module senses a signal, it takes a picture of the touchscreen to determine the current servicing progress and issues a corresponding instruction to control the tool container to eject the tool for the corresponding servicing procedure; then, the operator takes the corresponding tool to operate the touchscreen and puts the tool back in its original position; the movable plate is then pushed under the judgment display box again; after the judgment display box senses a signal, it takes a picture of the touchscreen to determine the progress and controls the tool container to retract the previous tool and eject the next tool; this process is repeated until the servicing operation is completed.

[0012] Preferred, including:

[0013] Step 1: Place the touch screen that needs to be repaired on the movable plate and push it under the judgment display box. The camera module takes a picture of it and transmits it to the embedded control system for judgment, and pops out the tool container corresponding to the Phillips screwdriver.

[0014] Step 2: The staff used a Phillips screwdriver to disassemble the touch screen to obtain the display box control board. The Phillips screwdriver was put back into the original tool holder. The display was then powered on. At this time, if the display showed stripes or other abnormalities, it was pushed under the judgment display box. After taking a picture and making a judgment, the staff controlled the retraction of the Phillips screwdriver and popped out the tool holder box with the anti-static brush.

[0015] Step 3: The staff cleaned the control board with a static-free brush. After checking that everything was in order, the static-free brush was put back in its original position, and the control board was pushed under the judgment display box. The judgment display box took a picture to determine the status, retrieved the static-free brush, and popped out the tool container for the dedicated connection cable for program burning.

[0016] Step 4: The staff uses the program-burning cable to connect the computer and the monitor, performs communication debugging on the monitor and burns the corresponding program. After confirming that the burning is successful, the connection cable is put back into its tool container box, and the working monitor is pushed under the judgment display box. The judgment display box takes a picture for judgment, retracts the connection cable, and pops out the tool container box containing the Phillips screwdriver again.

[0017] Step 5: The staff uses a Phillips screwdriver to reconnect the monitor, control board, and housing. After the inspection is completed, the Phillips screwdriver is put back into its tool holder, and the touch screen is pushed under the judgment display box. The judgment display box takes a picture to determine the current status as "inspection complete". The tool holder is then put back in the tool holder, and an inspection report is generated based on the previously taken photos and displayed on the screen.

[0018] The beneficial effects of this invention include:

[0019] This invention, through the embedded control system and photographic module, can record the situation during the maintenance process at any time and determine whether the operation is qualified. Furthermore, by connecting the tool storage box and the embedded control system, tools during the maintenance process can be effectively managed without the need for specific storage. After the maintenance is completed, a maintenance report can be automatically generated as needed by combining the photos taken during the maintenance process. It also has a display module that can display the maintenance progress in real time and can provide corresponding maintenance prompts for inexperienced employees, thus comprehensively increasing the efficiency of maintenance work. Attached Figure Description

[0020] Figure 1 This is a side view of an air conditioning control HMI touch screen maintenance device according to Embodiment 1.

[0021] Figure 2 This is a front view of an air conditioning control HMI touch screen maintenance device according to Embodiment 1.

[0022] Figure 3 This is a top view of the tool container involved in Embodiment 1.

[0023] Figure Labels

[0024] 1-Operating table, 11-Movable board, 2-Judgment display box, 21-Display screen, 22-Embedded control system, 23-Photographic module, 24-Sensor, 3-Tool storage box, 31-Tool storage container, 32-Electric telescopic rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] Example 1

[0027] The following is in conjunction with the appendix Figure 1-3 Specific embodiments of the present invention will be described in detail;

[0028] An air conditioning control HMI touchscreen maintenance device includes a tool holder 3, an operating table 1, and a judgment display box 2. The tool holder 3 is located above the judgment display box 2, and the operating table 1 is located below the judgment display box 2. The judgment display box 2 includes a box body, a camera module 23, and an embedded control system 22. The embedded control system 22 is located inside the box body, and the camera module 23 is located at the bottom of the box body. The camera module 23 and the tool holder 3 are electrically connected to the embedded control system 22. The camera module 23 is used to take pictures of the operating table 1 and transmit them to the embedded control system 22. The embedded control system 22 is used to judge the content of the picture and generate corresponding instructions to control the tool holder 3 based on the judgment result.

[0029] The embedded control system 22 is equipped with an image judgment model, which is used to compress and judge the content of the photo and return the judgment result to the embedded control system 22. The image judgment model includes YOLOv5 and a neural network model. It collects images of each step in the maintenance process, performs preprocessing such as cropping, normalization, and noise reduction, and then performs corresponding annotations to obtain a training set and a validation set. The image judgment model is trained and validated using the training set images until it can skillfully judge the steps corresponding to the input maintenance images and return the corresponding results to the embedded control system 22.

[0030] The tool container 3 is provided with multiple tool storage boxes 31. The tool storage boxes 31 are slidably connected to the bottom of the container body. One end of the tool storage box 31 is fixedly connected to the side wall of the container body via an electric telescopic rod 32. The electric telescopic rods 32 are all electrically connected to the judgment display box 2. The embedded control system 22 switches the electrical signals of the electric telescopic rods 32 corresponding to different tool storage boxes 31 according to the judgment results output by the image judgment model, thereby controlling the extension and retraction of the telescopic rods of each tool storage box 31 to control the pop-up and retraction of the tool storage boxes 31.

[0031] The operating table 1 is provided with a groove, and a movable plate 11 is provided in the groove. The end of the movable plate 11 near the judgment display box 2 is fixedly connected to one end of the groove by a spring. After the photo is taken, the movable plate 11 can return to its original position by itself after the staff releases the force.

[0032] Sensors 24 are provided on both sides of the camera module 23. When the movable plate 11 is pushed under the judgment display box 2, the sensor 24 senses the signal and transmits it to the embedded control system 22. The embedded control system 22 can then control the camera module 23 to take pictures without manually activating the camera module 23.

[0033] The judgment display box 2 includes a display screen, and the embedded control system 22 includes a report generation model. The report generation model is used to collect the pictures and judgment results of the entire maintenance process after the maintenance is completed and generate a corresponding maintenance report to be returned to the embedded control system 22. The report generation model is used to collect the pictures and judgment results of the entire maintenance process after the maintenance is completed, generate corresponding text descriptions for different pictures, and summarize the corresponding text descriptions into a document with a fixed format.

[0034] The tool holder 3 has a detachable cover on top, which makes it easy to put the tools into the corresponding holder.

[0035] Instructions for use: Open the maintenance device, place the touch screen on the movable plate 11, slide it under the judgment display box 2, and after the sensor 24 senses the corresponding signal, it transmits it to the embedded control system 22. The embedded control system 22 can then control the camera module 23 to take a picture. The camera module 23 then transmits the captured image to the embedded control system 22. The embedded control system 22 transmits the image to the image judgment model. The image judgment model determines the current maintenance status and transmits the judgment result back to the embedded control system 22. The embedded control system 22 transmits the corresponding command to control the electric telescopic rod 32 in the tool storage box 3 according to the judgment result, so that the tool storage box 31 containing the Phillips screwdriver in the tool storage box 3 pops out.

[0036] The staff then used a Phillips screwdriver to remove the mounting screws on the air conditioner HMI touchscreen casing, pulled out the control board and display screen 21 inside the HMI touchscreen, and then put the Phillips screwdriver back into the tool holder 31. Next, a DC 110V regulated power supply was used to power on the HMI touchscreen according to the power plug markings. The red and black multimeter probes were connected to the positive and negative terminals according to the power cord connection markings, and the regulated power supply was adjusted to apply a DC 24V voltage. After confirming that the internal indicator lights of the HMI touchscreen were on and that the touchscreen was displaying a message, the movable plate 11 was pushed under the judgment display box 2, and a photograph was taken to record any display stripe issues.

[0037] Then, the telescopic rod in the tool container 3 of the control display box 2 retracts and the tool container 31 containing the Phillips screwdriver pops out. To prevent the staff from forgetting to put the tools back, each tool container 31 is equipped with a sensor 24. If the control display box 2 intends to retract the corresponding tool container 31 but the sensor 24 in the container does not detect the tool, an alarm will be triggered through the display module. After the tool container 3 is operated, the staff uses the anti-static brush to clean the internal control board of the HMI touch screen, confirming that there is no rust, discoloration, pollution, foreign matter or other abnormalities in the components of the board, checking that there are no unsoldered or damaged solder joints, checking that all connections are not loose, cables are not damaged, and all components are securely installed. Then, the staff pushes the movable plate 11 back under the control display box 2 to take a picture and record. At this time, the tool container 3 retracts the tool container 31 containing the anti-static brush and pops out the tool container 31 containing the special connection cable for program burning.

[0038] Then, based on the issue of the power stripe problem on display screen 21, the staff replaced it with a new display screen 21. After unpacking the new display screen 21, it needed to be powered on for program burning. A special connection cable for touch screen program burning was used, with one end connected to the touch screen and the other end connected to the power supply using a DC110V regulated power supply red and black wire clamps. Note that red is positive and black is negative, with the red wire clamp at the back and the black wire clamp at the front. The communication part was connected to the laptop cable via an RS232 serial port cable.

[0039] Open the DWIN debugging assistant on your laptop, then set the voltage to 5.0V and the current to 0.5A for the regulated power supply output, and confirm that the display 21 is powered on and lit. Select 480x272, 16-bit color for the DWIN screen characteristics in the title bar.

[0040] Based on the laptop's hardware serial port, select the corresponding serial port COM on the DWIN Debug Assistant homepage, set the baud rate to 9600, and click "Handshake." After the version number tab pops up, click "OK." Once the handshake is successful, delete the template images in the image bar on the left side of the page, and select "Add 38 Images for Touchscreen Control Page," ensuring all images are in BMP format. Select the debug toolbar, click "Image Download," and confirm the download progress bar is displayed; the corresponding images should be imported and displayed on screen 21 simultaneously.

[0041] After the image download is complete, select Terminal Mode Parameter Configuration, set Display 21 Configuration to 03, and Baud Rate to 9600. Then, check the 2nd, 3rd, and 5th options below and click Settings. After setting, select Configuration File Download, select the Local Desktop Touch Program Bin format file in the Touch Configuration File location, and then click Send. Once the message "Sent successfully" is displayed, the software burning is complete.

[0042] Repeat the process of sliding the movable plate 11 to take photos and pop up the corresponding tools. The staff uses the corresponding tools to restore the connection between the display screen 21 and the control board, and reinstalls it inside the HMI touch screen housing, tightening the corresponding screws to ensure they are securely in place. Power on the HMI touch screen again using a DC 110V regulated power supply, confirming that the internal indicator lights are on, the touch screen displays information without stripe issues, and the touch is sensitive and normal. Then, slide the movable plate 11 again to take photos. The image judgment model determines that the repair is complete. At this point, the embedded control system 22 automatically generates a repair report based on the previously taken photos and the report generation model, and displays it on the display module.

[0043] Example 2

[0044] A method for servicing an air conditioning control HMI touchscreen includes: placing the touchscreen to be serviced on a movable plate of a control panel and pushing it under a judgment display box; the judgment display module senses a signal, takes a picture to determine the current servicing progress, and issues a corresponding command to control the tool container to eject the appropriate tool; then, the operator takes the appropriate tool to operate the touchscreen, returns the tool to its original position, and pushes the movable plate under the judgment display box again; the judgment display box senses a signal, takes a picture to determine the progress, and then controls the tool container to retract the previous tool and eject the next tool, repeating this cycle until the servicing operation is completed; specifically including:

[0045] Step 1: Place the touch screen that needs to be repaired on the movable plate and push it under the judgment display box. The camera module takes a picture of it and transmits it to the embedded control system for judgment, and pops out the tool container corresponding to the Phillips screwdriver.

[0046] Step 2: The staff used a Phillips screwdriver to disassemble the touch screen to obtain the display box control board. The Phillips screwdriver was put back into the original tool holder. The display was then powered on. At this time, if the display showed stripes or other abnormalities, it was pushed under the judgment display box. After taking a picture and making a judgment, the staff controlled the retraction of the Phillips screwdriver and popped out the tool holder box with the anti-static brush.

[0047] Step 3: The staff cleaned the control board with a static-free brush. After checking that everything was in order, the static-free brush was put back in its original position, and the control board was pushed under the judgment display box. The judgment display box took a picture to determine the status, retrieved the static-free brush, and popped out the tool container for the dedicated connection cable for program burning.

[0048] Step 4: The staff uses the program-burning cable to connect the computer and the monitor, performs communication debugging on the monitor and burns the corresponding program. After confirming that the burning is successful, the connection cable is put back into its tool container box, and the working monitor is pushed under the judgment display box. The judgment display box takes a picture for judgment, retracts the connection cable, and pops out the tool container box containing the Phillips screwdriver again.

[0049] Step 5: The staff uses a Phillips screwdriver to reconnect the monitor, control board, and housing. After the inspection is completed, the Phillips screwdriver is put back into its tool holder, and the touch screen is pushed under the judgment display box. The judgment display box takes a picture to determine the current status as "inspection complete". The tool holder is then put back in the tool holder, and an inspection report is generated based on the previously taken photos and displayed on the screen.

[0050] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A maintenance device for an air conditioning control HMI touchscreen, characterized in that, The system includes a tool holder (3), an operating table (1), and a judgment display box (2). The tool holder (3) is located above the judgment display box (2), and the operating table (1) is located below the judgment display box (2). The judgment display box (2) includes a box body, a camera module (23), and an embedded control system (22). The embedded control system (22) is located inside the box body, and the camera module (23) is located at the bottom of the box body. The camera module (23) and the tool holder (3) are electrically connected to the embedded control system (22). The camera module (23) is used to take pictures of the operating table (1) and transmit them to the embedded control system (22). The embedded control system (22) is used to judge the content of the pictures, judge the current maintenance status, and generate corresponding instructions to control the tool holder (3) based on the judgment results. The tool storage box (3) is provided with multiple tool storage boxes (31) inside. The tool storage boxes (31) are slidably connected to the bottom of the tool storage box (3). The end of the tool storage box (31) away from the operating table (1) is fixedly connected to the side wall of the tool storage box (3) through an electric telescopic rod (32). The electric telescopic rod (32) is electrically connected to the judgment display box (2). The judgment display box (2) includes a display screen, and the embedded control system (22) includes a report generation model. The report generation model is used to collect pictures and judgment results of the entire maintenance process after the maintenance is completed and generate a corresponding maintenance report to be returned to the embedded control system (22). Place the touch screen that needs to be repaired on the movable plate of the operating table (1) and push it under the judgment display box (2). After the judgment display box (2) senses the signal through the sensor, it takes a picture of the current repair progress and issues a corresponding instruction to control the tool container box (3) to pop out the tool for the corresponding repair procedure. Then, the staff takes the corresponding tool to operate the touch screen and puts the tool back in its original position. Then push the movable plate under the judgment display box (2) again. After the judgment display box (2) senses the signal, it takes a picture of the tool and controls the tool container box (3) to retract the previous tool and pop out the next tool. Repeat this process until the repair operation is completed.

2. The air conditioning control HMI touch screen maintenance device according to claim 1, characterized in that, The embedded control system (22) is equipped with an image determination model, which is used to compress and determine the content of the photo and return the determination result to the embedded control system (22).

3. The air conditioning control HMI touch screen maintenance device according to claim 1, characterized in that, The operating table (1) is provided with a groove, and a movable plate (11) is provided in the groove. The end of the movable plate (11) near the judgment display box (2) is fixedly connected to one end of the groove by a spring.

4. The air conditioning control HMI touch screen maintenance device according to claim 1, characterized in that, Sensors (24) are provided on both sides of the camera module (23).

5. The air conditioning control HMI touch screen maintenance device according to claim 1, characterized in that, The tool holder (3) has a detachable lid on top.

6. A method for troubleshooting an air conditioning control HMI touchscreen, characterized in that, This is achieved through the air conditioning control HMI touchscreen maintenance device according to any one of claims 1-5, comprising: Step 1: Place the touch screen that needs to be repaired on the movable plate and push it under the judgment display box. The camera module takes a picture of it and transmits it to the embedded control system for judgment, and pops out the tool container corresponding to the Phillips screwdriver. Step 2: The staff used a Phillips screwdriver to disassemble the touch screen to obtain the display and control board. The Phillips screwdriver was put back into the original tool holder. The display was then powered on. If the display showed stripes or other abnormalities, it was pushed under the judgment display box. After taking a picture and making a judgment, the staff controlled the retraction of the Phillips screwdriver and popped out the tool holder with the anti-static brush. Step 3: The staff cleaned the control board with a static-free brush. After checking that everything was in order, the static-free brush was put back in its original position, and the control board was pushed under the judgment display box. The judgment display box took a picture to determine the status, retrieved the static-free brush, and popped out the tool container for the dedicated connection cable for program burning. Step 4: The staff uses the program-burning cable to connect the computer and the monitor, performs communication debugging on the monitor and burns the corresponding program. After confirming that the burning is successful, the connection cable is put back into its tool container box, and the working monitor is pushed under the judgment display box. The judgment display box takes a picture for judgment, retracts the connection cable, and pops out the tool container box containing the Phillips screwdriver again. Step 5: The staff uses a Phillips screwdriver to reconnect the monitor, control board, and housing. After the inspection is completed, the Phillips screwdriver is put back into its tool holder, and the touch screen is pushed under the judgment display box. The judgment display box takes a picture to determine the current status as "inspection complete". The tool holder is then put back in the tool holder, and an inspection report is generated based on the previously taken photos and displayed on the screen.

Citation Information

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