Method and device for online maintenance of rotary ball valve

Abstract

The invention discloses a method for online maintenance of a rotary ball valve. The method comprises the steps that a user terminal sends a maintenance request to a maintenance terminal; after the maintenance request is received, the maintenance terminal sends interested point location information to the user terminal; after the interested point location information is received, the user terminal obtains a first image set near the interested point location; the user terminal sends the first image set to the maintenance terminal; after the first image set is received, the maintenance terminal judges whether the first image set meets maintenance requirements or not; and if the maintenance terminal judges that the first image set does not meet the maintenance requirement, the maintenance terminal generates first interaction information based on the first image set. According to the method, the communication efficiency between the maintenance personnel and the user is improved, and the probability of wrong judgment of the fault part is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of image processing, in particular to a method and a device for online repairing a rotary ball valve. Background Art

[0002] The rotary ball valve is suitable for the storage and transportation pipeline systems of liquefied natural gas, as well as some pipeline systems such as liquid oxygen, liquid nitrogen and liquid methane that require the valve to be used at a temperature below minus 150 degrees Celsius. It is used to control the on and off of ultra-low temperature liquid media.

[0003] The structure of the rotary ball valve is relatively complex, with a large number of parts, and the rotary ball valve is generally used in extreme environments with extremely low temperatures. Therefore, the repair and maintenance of the rotary ball valve is an important task for users. For some common faults caused by aging or damage of parts, maintenance personnel have been able to guide users to locate the faulty parts through video calls. After locating the faulty parts, maintenance personnel can mail new parts to users by express delivery, and then users can replace the faulty parts by themselves, which greatly improves the maintenance efficiency of the rotary ball valve. However, the existing technology of guiding users to locate faulty parts through video calls still has problems such as poor communication between maintenance personnel and users, low communication efficiency, and incorrect judgment of faulty parts. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides a method for online maintenance of a rotary ball valve. The method of the present invention changes the interaction mode between maintenance personnel and users, improves the communication efficiency between maintenance personnel and users, and the method of the present invention can improve the clarity of the image of the faulty part without changing the existing communication system, thereby reducing the probability of incorrect judgment of the faulty parts.

[0005] The present invention provides a method for online maintenance of a rotary ball valve, characterized in that the method comprises:

[0006] The user terminal sends a maintenance request to the maintenance terminal, wherein the maintenance request includes a ball valve fault overview;

[0007] After receiving the maintenance request, the maintenance terminal sends the point of interest information to the user terminal, wherein the point of interest information is generated based on the ball valve fault overview;

[0008] After receiving the information of the point of interest, the user terminal acquires a first image set near the point of interest, wherein the first image set includes a plurality of first-category images, and the first-category images have a first resolution;

[0009] The user terminal sends a first image set to the maintenance terminal;

[0010] After receiving the first image set, the maintenance terminal determines whether the first image set meets the maintenance requirement; and

[0011] If the maintenance terminal determines that the first image set does not meet the maintenance requirement, the maintenance terminal generates first interaction information based on the first image set.

[0012] In a preferred embodiment, the method further comprises:

[0013] The maintenance terminal sends first interaction information to the user terminal;

[0014] The user terminal displays the first interaction information to the user;

[0015] The user terminal reacquires a second image set near the point of interest, wherein the position of the reacquired second image set is based on the first interactive information, and wherein the second image set includes a plurality of first-category images;

[0016] The user terminal sends a second image set to the maintenance terminal;

[0017] After receiving the second image set, the maintenance terminal determines whether the second image set meets the maintenance requirement;

[0018] If the maintenance terminal determines that the second image set meets the maintenance requirement, the maintenance terminal generates second interaction information.

[0019] In a preferred embodiment, the method further comprises:

[0020] The maintenance terminal sends second interaction information to the user terminal;

[0021] The user terminal displays the second interaction information to the user;

[0022] Reacquiring, by the user terminal, a third image set near the point of interest, wherein the number of details of the point of interest displayed by the third image set is different from the number of details of the point of interest displayed by the second image set, wherein the third image set includes a plurality of first-category images;

[0023] The user terminal sends a third image set to the maintenance terminal;

[0024] The maintenance terminal selects a first image frame in the third image set, wherein the first image frame has a first frame number;

[0025] The maintenance terminal selects a plurality of positions in the first image frame, wherein each of the plurality of positions corresponds to a piece of position information.

[0026] In a preferred embodiment, the method further comprises:

[0027] The maintenance terminal sends a shooting instruction to the user terminal, wherein the shooting instruction includes a first frame number and position information;

[0028] After receiving the shooting instruction, the user terminal retrieves the first image frame based on the first frame number;

[0029] A plurality of positions in the first image frame are determined by the user terminal based on the position information.

[0030] In a preferred embodiment, the method further comprises:

[0031] The user terminal acquires an image of each position with each position as a focus to generate a fourth image set, wherein the fourth image set includes a plurality of second-type images, the second-type images have a second resolution, and the first resolution is smaller than the second resolution;

[0032] The fourth image set is sent by the user terminal to the maintenance terminal.

[0033] The present invention provides a device for online maintenance of a rotary ball valve, characterized in that the device comprises a module for performing the following operations:

[0034] The user terminal sends a maintenance request to the maintenance terminal, wherein the maintenance request includes a ball valve fault overview;

[0035] After receiving the maintenance request, the maintenance terminal sends the point of interest information to the user terminal, wherein the point of interest information is generated based on the ball valve fault overview;

[0036] After receiving the information of the point of interest, the user terminal acquires a first image set near the point of interest, wherein the first image set includes a plurality of first-category images, and the first-category images have a first resolution;

[0037] The user terminal sends a first image set to the maintenance terminal;

[0038] After receiving the first image set, the maintenance terminal determines whether the first image set meets the maintenance requirement; and

[0039] If the maintenance terminal determines that the first image set does not meet the maintenance requirement, the maintenance terminal generates first interaction information based on the first image set.

[0040] In a preferred embodiment, the device further comprises a module for performing the following operations:

[0041] The maintenance terminal sends first interaction information to the user terminal;

[0042] The user terminal displays the first interaction information to the user;

[0043] The user terminal reacquires a second image set near the point of interest, wherein the position of the reacquired second image set is based on the first interactive information, and wherein the second image set includes a plurality of first-category images;

[0044] The user terminal sends a second image set to the maintenance terminal;

[0045] After receiving the second image set, the maintenance terminal determines whether the second image set meets the maintenance requirement;

[0046] If the maintenance terminal determines that the second image set meets the maintenance requirement, the maintenance terminal generates second interaction information.

[0047] In a preferred embodiment, the device further comprises a module for performing the following operations:

[0048] The maintenance terminal sends second interaction information to the user terminal;

[0049] The user terminal displays the second interaction information to the user;

[0050] Reacquiring, by the user terminal, a third image set near the point of interest, wherein the number of details of the point of interest displayed by the third image set is different from the number of details of the point of interest displayed by the second image set, wherein the third image set includes a plurality of first-category images;

[0051] The user terminal sends a third image set to the maintenance terminal;

[0052] The maintenance terminal selects a first image frame in the third image set, wherein the first image frame has a first frame number;

[0053] The maintenance terminal selects a plurality of positions in the first image frame, wherein each of the plurality of positions corresponds to a piece of position information.

[0054] In a preferred embodiment, the device further comprises a module for performing the following operations:

[0055] The maintenance terminal sends a shooting instruction to the user terminal, wherein the shooting instruction includes a first frame number and position information;

[0056] After receiving the shooting instruction, the user terminal retrieves the first image frame based on the first frame number;

[0057] A plurality of positions in the first image frame are determined by the user terminal based on the position information.

[0058] In a preferred embodiment, the device further comprises a module for performing the following operations:

[0059] The user terminal acquires an image of each position with each position as a focus to generate a fourth image set, wherein the fourth image set includes a plurality of second-type images, the second-type images have a second resolution, and the first resolution is smaller than the second resolution;

[0060] The fourth image set is sent by the user terminal to the maintenance terminal.

[0061] Compared with the prior art, the method of the present invention changes the interaction mode between maintenance personnel and users, improves the communication efficiency between maintenance personnel and users, and the method of the present invention can improve the clarity of the image of the faulty part without changing the existing communication system, thereby reducing the probability of misjudgment of the faulty parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a method flow chart of an embodiment of the present invention.

[0063] Figure 2 It is a schematic diagram of an interface of an example of the present invention.

[0064] Figure 3 is a method flow chart of another embodiment of the present invention.

[0065] Figure 4 It is a schematic diagram of an interface showing first interactive information according to an example of the present invention.

[0066] Figure 5 It is another example of an interface schematic diagram showing first interactive information of the present invention.

[0067] Figure 6 is a method flow chart of another embodiment of the present invention.

[0068] Figure 7 It is a schematic diagram of a maintenance terminal selecting multiple positions in a first image frame according to an example of the present invention. DETAILED DESCRIPTION

[0069] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0070] In the background technology section, it is mentioned that the existing technology of guiding users to locate faulty parts through video calls has problems such as poor communication between maintenance personnel and users, low communication efficiency, and wrong judgment of faulty parts. The following specific analysis: Regarding the problem of poor communication and low communication efficiency between maintenance personnel and users, our research found that the main reasons for this problem are as follows: First, the current mainstream wireless networks include WiFi or 5G communication technology. Regardless of the technology, the transmission speed in the downlink direction is much greater than the transmission speed in the uplink direction. Therefore, when users communicate via video, the problems of video freeze, video and audio disconnection, and low video clarity cannot be avoided. This causes the maintenance personnel and users to be unable to effectively understand each other's meaning, and causes the maintenance personnel to be unable to see the appearance of the faulty part in a short time, resulting in poor communication and low communication efficiency for users. Second, due to the wide range of product uses, users may be residents of various provinces in my country. Therefore, due to different local dialects, this may lead to the inability of maintenance personnel and users to communicate effectively by simply relying on video calls. Both parties have to rely on guesses about each other's meaning, which also leads to poor communication and communication efficiency for users. In response to this technical problem, the prior art CN110263615A proposed an AR-based interactive technology, the basic technical solution of which is to use AR technology to display arrows, text, letters and other identification information in the user terminal to guide the user to take a picture of the full appearance of the vehicle so that maintenance personnel can assess the damage to the vehicle. However, this prior art can only guide users to take a picture of the full appearance of the vehicle, and its function is single. Moreover, for ball valve maintenance, taking a picture of the full appearance of the ball valve is actually the most meaningless way of taking pictures, because taking a picture of the full appearance of the ball valve cannot help maintenance personnel locate the faulty parts. Therefore, this prior art cannot solve the problems existing in online maintenance of ball valves.

[0071] Regarding the problem of misjudgment of faulty parts, our research found that the reasons for this problem are as follows: As mentioned above, due to the limitations of communication technology, the current mainstream video call software (such as video calls in WeChat, or video interactive functions on live broadcast platforms such as Douyin, etc.) has low video call clarity. In other words, the resolution of each frame of the video call is low. In the case of low image resolution, maintenance personnel may miss some minor faults of parts, or maintenance personnel may misjudge the degree of damage to parts, which may lead to misjudgment of faulty parts. The current civilian network cannot support real-time high-definition video calls, so the existing technology cannot solve the above problems.

[0072] Example 1

[0073] Figure 1 1 is a method flow chart of an embodiment of the present invention. As shown in the figure, the method of the present invention includes the following steps:

[0074] Step 11: The user terminal sends a maintenance request to the maintenance terminal, wherein the maintenance request includes a ball valve fault summary; in one example, the user terminal may display a predefined ball valve fault summary to the user to prevent the user from being unclear about how to describe the ball valve fault; in one example, the predefined ball valve fault summary may include, for example, "poor sealing", "ball valve leakage", "valve abnormal sound", etc. In one example, the user terminal and the maintenance terminal may be smart phones.

[0075] Step 12: After receiving the maintenance request, the maintenance terminal sends the information of the points of interest to the user terminal, wherein the information of the points of interest is generated based on the overview of the ball valve fault; generally speaking, the faults that users can repair by replacing parts are all common minor faults of ball valves (serious faults cannot be repaired by users themselves, and the ball valve can only be sent back to the manufacturer for repair), and there are generally only a few common minor faults of ball valves, and these faults are generally caused by some fixed fragile parts, so several fragile parts that may fail can be located through the overview of the ball valve fault. In an example, for example, "poor sealing" may be caused by wear and failure of the middle cavity leak detection plug, the two-way sealing O-type energy storage ring, the SPE end one-way sealing O-type energy storage ring, the DPE end two-way sealing O-type double-layer energy storage ring, etc., "ball valve leakage" may be caused by wear and failure of the one-way sealing O-type energy storage ring, etc., and "valve abnormal noise" may be caused by aging and failure of the anti-loosening pad disc spring group guide sleeve, disc spring group, disc spring group quantitative compression limit sleeve, DPE end spring support ring, DPE end spring, etc. In one example, for example, the ball valve currently in the user's hand may have a "ball valve leakage" problem, so the point of interest is a one-way sealed O-type energy storage ring, and the point of interest information is used to indicate to the user terminal that the point of interest is a one-way sealed O-type energy storage ring.

[0076] Step 13: After receiving the information of the point of interest, the user terminal obtains a first image set near the point of interest, wherein the first image set includes a plurality of first-class images, and the first-class images have a first resolution; in one example, after receiving the information of the point of interest, the user terminal can display the name of the point of interest to the user. Continuing with the above example, the user terminal can display to the user that the point of interest is a one-way sealed O-type energy storage ring, and then the user can remove the parts around the one-way sealed O-type energy storage ring to expose the one-way sealed O-type energy storage ring for shooting; it should be understood that the user terminal can use a camera to aim at the position of the one-way sealed O-type energy storage ring to shoot, and the user terminal obtains the first image set through shooting. It can be understood that when displayed at the maintenance terminal, the first image set is presented as a real-time video. Real-time video call technology is already common knowledge and will not be repeated here. In one example, the resolution of an image can be represented in a variety of ways. The present invention uses the number of pixels to represent the image resolution. In one example, the first resolution can be 640×480, that is, 300,000 pixel resolution.

[0077] Step 14: The user terminal sends the first image set to the maintenance terminal;

[0078] Step 15: After receiving the first image set, the maintenance terminal determines whether the first image set meets the maintenance requirement. It should be understood that after receiving the first image set, the maintenance terminal can display the first image set (that is, the real-time video image captured by the user terminal) to the maintenance personnel at the maintenance terminal. The maintenance personnel can determine whether the first image set meets the maintenance requirement based on the real-time video image. The schematic diagram of the maintenance personnel determining whether the first image set meets the maintenance requirement can be seen in Figure 2 .exist Figure 2 In the example, the interface on the left shows that the first image set does not meet the maintenance requirements. It is understandable that since half of the points of interest are not included in the current video screen, the maintenance personnel cannot fully see the points of interest. Therefore, it can be determined that the points of interest are Figure 2 The first image set on the left does not meet the maintenance requirements. The interface on the right shows that the first image set meets the maintenance requirements. It can be understood that since the point of interest is located in the center of the current video screen, the maintenance personnel can fully see the point of interest. Therefore, it can be determined that the point of interest is located in the center of the current video screen. Figure 2 The first set of images on the right meets the repair requirements.

[0079] Step 16: If the maintenance terminal determines that the first image set does not meet the maintenance requirements, the maintenance terminal generates first interactive information based on the first image set. In one example, the first interactive information can be generated by the maintenance personnel by clicking Figure 2 Generates virtual buttons in the displayed ribbon.

[0080] Example 2

[0081] Figure 3 FIG. 1 is a method flow chart of another embodiment of the present invention. As shown in the figure, the method of the present invention also includes the following steps:

[0082] Step 21: The maintenance terminal sends first interaction information to the user terminal;

[0083] Step 22: The user terminal displays the first interaction information to the user; an example of the user terminal displaying the first interaction information to the user can be found in Figure 4 Continuing with the previous example, maintenance personnel can click Figure 2 The virtual buttons in the displayed function area are Figure 2 The interface on the left shows the situation. Maintenance personnel can click Figure 2 The left arrow in the displayed function area generates a first interaction information, and the first interaction information is a left arrow. After receiving the first interaction information, the user terminal can automatically display a left arrow to the user on the screen of the user terminal. In addition, in order to facilitate maintenance personnel to view the first interaction information generated by themselves and prevent maintenance personnel from generating wrong interaction information due to carelessness, the maintenance terminal can also display the first interaction information to the maintenance personnel. Another example of the user terminal displaying the first interaction information to the user can be seen in Figure 5 Maintenance personnel can click Figure 2 The virtual buttons in the displayed function area are Figure 2 The interface on the left shows the situation. Maintenance personnel can click Figure 2 The left arrow in the displayed function area and the data "1cm" in the input box of the function area generate a first interaction information, which is a left arrow and a prompt text matching the arrow, which can prevent the user from moving the camera too far to the left. It can be understood that Figure 4 and Figure 5 The left arrow in is only an example of the first interaction information. The first interaction information may also be an upward arrow, a downward arrow, a rightward arrow, an upward diagonal arrow, a downward diagonal arrow, arrows in various directions with prompt text, etc.

[0084] Step 23: The user terminal reacquires a second image set near the point of interest, wherein the position of the reacquired second image set is based on the first interactive information, wherein the second image set includes a plurality of first-category images; Figure 4For example, after the user sees the left arrow displayed by the user terminal, the user can move the camera of the user terminal to the left so that the point of interest can be moved to the center of the current video screen. It should be understood that although the present invention introduces the scheme of the present invention in the form of steps with a sequence of steps, these steps all occur in real time, and there is no time interval between the steps. For example, when the maintenance personnel sees through the real-time video screen that the point of interest is not in the center of the video screen, the maintenance personnel can generate the first interaction information in real time (at this time, the maintenance terminal still plays the video screen sent by the user terminal uninterruptedly), and send the interaction information to the user terminal. The user terminal displays the first interaction information on the screen while continuously shooting the video, and the user adjusts the camera position based on the first interaction information while continuing to shoot the video screen.

[0085] Step 24: The user terminal sends the second image set to the maintenance terminal;

[0086] Step 25: After receiving the second image set, the maintenance terminal determines whether the second image set meets the maintenance requirements;

[0087] Step 26: If the maintenance terminal determines that the second image set meets the maintenance requirement, the maintenance terminal generates second interaction information.

[0088] Example 3

[0089] Figure 6 FIG. 1 is a method flow chart of another embodiment of the present invention. As shown in the figure, the method of the present invention also includes the following steps:

[0090] Step 31: The maintenance terminal sends second interaction information to the user terminal;

[0091] Step 32: The user terminal displays the second interactive information to the user; in one example, the second interactive information may be information requiring the user to move the camera closer to the point of interest. It is understandable that, under the premise that the screen resolution and image resolution remain unchanged, the closer the camera is to the point of interest, the larger the area of ​​the video image of the point of interest displayed in the maintenance terminal will occupy on the screen, which makes it easier for maintenance personnel to analyze the location of faulty parts through the video image.

[0092] Step 33: The user terminal reacquires a third image set near the point of interest, wherein the number of details of the point of interest displayed in the third image set is different from the number of details of the point of interest displayed in the second image set, wherein the third image set includes multiple first-category images; in one example, if the second interaction information requires the user to move the camera closer to the point of interest, then the number of details of the point of interest displayed in the third image set is greater than the number of details of the point of interest displayed in the second image set.

[0093] Step 34: The user terminal sends the third image set to the maintenance terminal;

[0094] Step 35: The maintenance terminal selects the first image frame in the third image set, wherein the first image frame has a first frame number; in one example, when the maintenance personnel determines that the point of interest is located in the center of the maintenance terminal screen and the point of interest has been enlarged to a sufficient level to see the status of the part (that is, when the user terminal camera is close enough to the point of interest), the maintenance personnel can click the screenshot button in the function area to select the first image frame.

[0095] Step 36: The maintenance terminal selects multiple positions in the first image frame, wherein each position in the multiple positions corresponds to a position information. In an example, the maintenance terminal selects multiple positions in the first image frame. Figure 7 .like Figure 7 As shown, maintenance personnel can touch the screen to select multiple locations of interest. Figure 7 In the example, the maintenance personnel selected positions A, B, and C. Still taking the aforementioned one-way sealed O-type energy storage ring as an example, the points of interest include the one-way sealed O-type energy storage ring and some areas around it. The maintenance personnel can roughly determine the location of the one-way sealed O-type energy storage ring failure (for example, position A, position B, and position C) by watching the low-resolution video displayed by the maintenance terminal. However, due to the low image resolution, the specific nature of the failure cannot be seen clearly. Therefore, the maintenance personnel may want to see the high-definition images of positions A, B, and C more clearly. The following embodiments ensure this goal.

[0096] Example 4

[0097] In embodiment 4, the method further comprises:

[0098] The maintenance terminal sends a shooting instruction to the user terminal, wherein the shooting instruction includes a first frame number and position information; wherein the position information can be represented by a rectangular coordinate system, for example, a circle at position A can be represented by a series of (x, y) coordinates in the rectangular coordinate system, which is basic mathematical knowledge and will not be repeated in the present invention.

[0099] After receiving the shooting instruction, the user terminal retrieves the first image frame based on the first frame number; it is understandable that after sending the video to the maintenance terminal, the user terminal can temporarily cache the sent video in the memory of the user terminal.

[0100] The user terminal determines multiple positions in the first image frame based on the position information. Continuing with the above example, the user terminal determines position A, position B, and position C in the first image frame based on the position information.

[0101] In a preferred embodiment, the method further comprises:

[0102] The user terminal takes each of the multiple positions as a focus to acquire an image of each position to generate a fourth image set, wherein the fourth image set includes multiple second-category images, the second-category images have a second resolution, wherein the first resolution is less than the second resolution; in one example, the user terminal takes the center of position A as a focus to acquire a frame of image of position A, takes the center of position B as a focus to acquire a frame of image of position B, and takes the center of position C as a focus to acquire a frame of image of position C. This operation is because position A, position B, and position C are at different distances from the camera. If the focus is adjusted with one position as the focus, and then photos of the three positions are taken, some photos will appear blurred due to inappropriate focus; and taking the center of each position as the focus, adjusting the focus respectively, and taking photos of the corresponding positions can ensure the clarity of the photos. An example of the first resolution can be 1600×1000.

[0103] The fourth image set is sent by the user terminal to the maintenance terminal.

[0104] Example 5

[0105] The present invention provides a device for online maintenance of a rotary ball valve, characterized in that the device comprises a module for performing the following operations:

[0106] The user terminal sends a maintenance request to the maintenance terminal, wherein the maintenance request includes a ball valve fault overview;

[0107] After receiving the maintenance request, the maintenance terminal sends the point of interest information to the user terminal, wherein the point of interest information is generated based on the ball valve fault overview;

[0108] After receiving the information of the point of interest, the user terminal acquires a first image set near the point of interest, wherein the first image set includes a plurality of first-category images, and the first-category images have a first resolution;

[0109] The user terminal sends a first image set to the maintenance terminal;

[0110] After receiving the first image set, the maintenance terminal determines whether the first image set meets the maintenance requirement; and

[0111] If the maintenance terminal determines that the first image set does not meet the maintenance requirement, the maintenance terminal generates first interaction information based on the first image set.

[0112] In a preferred embodiment, the device further comprises a module for performing the following operations:

[0113] The maintenance terminal sends first interaction information to the user terminal;

[0114] The user terminal displays the first interaction information to the user;

[0115] The user terminal reacquires a second image set near the point of interest, wherein the position of the reacquired second image set is based on the first interactive information, and wherein the second image set includes a plurality of first-category images;

[0116] The user terminal sends a second image set to the maintenance terminal;

[0117] After receiving the second image set, the maintenance terminal determines whether the second image set meets the maintenance requirement;

[0118] If the maintenance terminal determines that the second image set meets the maintenance requirement, the maintenance terminal generates second interaction information.

[0119] In a preferred embodiment, the device further comprises a module for performing the following operations:

[0120] The maintenance terminal sends second interaction information to the user terminal;

[0121] The user terminal displays the second interaction information to the user;

[0122] Reacquiring, by the user terminal, a third image set near the point of interest, wherein the number of details of the point of interest displayed by the third image set is different from the number of details of the point of interest displayed by the second image set, wherein the third image set includes a plurality of first-category images;

[0123] The user terminal sends a third image set to the maintenance terminal;

[0124] The maintenance terminal selects a first image frame in the third image set, wherein the first image frame has a first frame number;

[0125] The maintenance terminal selects a plurality of positions in the first image frame, wherein each of the plurality of positions corresponds to a piece of position information.

[0126] In a preferred embodiment, the device further comprises a module for performing the following operations:

[0127] The maintenance terminal sends a shooting instruction to the user terminal, wherein the shooting instruction includes a first frame number and position information;

[0128] After receiving the shooting instruction, the user terminal retrieves the first image frame based on the first frame number;

[0129] A plurality of positions in the first image frame are determined by the user terminal based on the position information.

[0130] In a preferred embodiment, the device further comprises a module for performing the following operations:

[0131] The user terminal acquires an image of each position with each position as a focus to generate a fourth image set, wherein the fourth image set includes a plurality of second-type images, the second-type images have a second resolution, and the first resolution is smaller than the second resolution;

[0132] The fourth image set is sent by the user terminal to the maintenance terminal.

[0133] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A method for online maintenance of a rotary ball valve, characterized in that: The method comprises: The user terminal sends a maintenance request to the maintenance terminal, wherein the maintenance request includes a ball valve fault summary; After receiving the maintenance request, the maintenance terminal sends the point of interest information to the user terminal, wherein the point of interest information is generated based on the ball valve fault summary; After receiving the information of the point of interest, the user terminal acquires a first image set near the point of interest, wherein the first image set includes a plurality of first-category images, and the first-category images have a first resolution; The user terminal sends the first image set to the maintenance terminal; After receiving the first image set, the maintenance terminal determines whether the first image set meets maintenance requirements; and If the maintenance terminal determines that the first image set does not meet the maintenance requirement, the maintenance terminal generates first interaction information based on the first image set.

2. The method according to claim 1, wherein: The method further comprises: The maintenance terminal sends the first interaction information to the user terminal; The user terminal displays the first interaction information to the user; Reacquiring, by the user terminal, a second image set near the point of interest, wherein the position of reacquiring the second image set is based on the first interactive information, wherein the second image set includes a plurality of first-category images; The user terminal sends the second image set to the maintenance terminal; After receiving the second image set, the maintenance terminal determines whether the second image set meets the maintenance requirement; If the maintenance terminal determines that the second image set meets the maintenance requirement, the maintenance terminal generates second interaction information.

3. The method according to claim 2, wherein: The method further comprises: The maintenance terminal sends the second interaction information to the user terminal; The user terminal displays the second interaction information to the user; Reacquiring, by the user terminal, a third image set near the point of interest, wherein the number of details of the point of interest displayed by the third image set is different from the number of details of the point of interest displayed by the second image set, wherein the third image set includes a plurality of first-category images; The user terminal sends the third image set to the maintenance terminal; The maintenance terminal selects a first image frame in the third image set, wherein the first image frame has a first frame number; A maintenance terminal selects a plurality of positions in the first image frame, wherein each of the plurality of positions corresponds to a piece of position information.

4. The method according to claim 3, wherein: The method further comprises: The maintenance terminal sends a shooting instruction to the user terminal, wherein the shooting instruction includes the first frame number and position information; After receiving the shooting instruction, the user terminal retrieves the first image frame based on the first frame number; The multiple positions in the first image frame are determined by the user terminal based on the position information.

5. The method according to claim 4, wherein: The method further comprises: The user terminal acquires an image of each of the multiple positions by focusing on each of the multiple positions to generate a fourth image set, wherein the fourth image set includes multiple second-category images, and the second-category images have a second resolution, wherein the first resolution is smaller than the second resolution; The fourth image set is sent by the user terminal to the maintenance terminal.

6. A device for online maintenance of a rotary ball valve, characterized in that: The apparatus comprises means for performing the following operations: The user terminal sends a maintenance request to the maintenance terminal, wherein the maintenance request includes a ball valve fault summary; After receiving the maintenance request, the maintenance terminal sends the point of interest information to the user terminal, wherein the point of interest information is generated based on the ball valve fault summary; After receiving the information of the point of interest, the user terminal acquires a first image set near the point of interest, wherein the first image set includes a plurality of first-category images, and the first-category images have a first resolution; The user terminal sends the first image set to the maintenance terminal; After receiving the first image set, the maintenance terminal determines whether the first image set meets maintenance requirements; and If the maintenance terminal determines that the first image set does not meet maintenance requirements, the maintenance terminal generates first interaction information based on the first image set.

7. The device according to claim 6, wherein: The apparatus also includes means for performing the following operations: The maintenance terminal sends the first interaction information to the user terminal; The user terminal displays the first interaction information to the user; Reacquiring, by the user terminal, a second image set near the point of interest, wherein the position of reacquiring the second image set is based on the first interactive information, wherein the second image set includes a plurality of first-category images; The user terminal sends the second image set to the maintenance terminal; After receiving the second image set, the maintenance terminal determines whether the second image set meets the maintenance requirement; If the maintenance terminal determines that the second image set meets the maintenance requirement, the maintenance terminal generates second interaction information.

8. The device according to claim 7, wherein: The apparatus also includes means for performing the following operations: The maintenance terminal sends the second interaction information to the user terminal; The user terminal displays the second interaction information to the user; Reacquiring, by the user terminal, a third image set near the point of interest, wherein the number of details of the point of interest displayed by the third image set is different from the number of details of the point of interest displayed by the second image set, wherein the third image set includes a plurality of first-category images; The user terminal sends the third image set to the maintenance terminal; The maintenance terminal selects a first image frame in the third image set, wherein the first image frame has a first frame number; A maintenance terminal selects a plurality of positions in the first image frame, wherein each of the plurality of positions corresponds to a piece of position information.

9. The device according to claim 8, wherein: The apparatus also includes means for performing the following operations: The maintenance terminal sends a shooting instruction to the user terminal, wherein the shooting instruction includes the first frame number and position information; After receiving the shooting instruction, the user terminal retrieves the first image frame based on the first frame number; The multiple positions in the first image frame are determined by the user terminal based on the position information.

10. The device according to claim 9, wherein: The apparatus also includes means for performing the following operations: The user terminal acquires an image of each of the multiple positions by focusing on each of the multiple positions to generate a fourth image set, wherein the fourth image set includes multiple second-category images, and the second-category images have a second resolution, wherein the first resolution is smaller than the second resolution; The fourth image set is sent by the user terminal to the maintenance terminal.

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