A cable guide and fixing device for wind turbines on loess slopes

Abstract

The present invention is applicable to the field of wind turbines, and provides a cable guide and fixing device for wind turbines on loess slopes, comprising: two power boxes, the top of the power boxes is fixedly connected to a horizontally arranged transmission box, the bottom of the power boxes is fixedly connected to a support frame corresponding to the position of the transmission box, a curved guide wheel is rotatably arranged between the support frame and the transmission box, a pressure sensor is arranged in the curved guide wheel, and casters capable of being lifted and lowered in the vertical direction are arranged on both sides of the bottom of the power box; a telescopic connection assembly, the telescopic connection assembly is located at the top of the two power boxes, and the two ends of the telescopic connection assembly are fixedly connected to the two power boxes respectively. Its beneficial effect is that the device can automatically move using the cable, and automatically stop when detecting the bend in the cable trench, and can play a role in pushing the cable after the device stops moving.

Description

Technical Field

[0001] The invention belongs to the field of wind turbines, and in particular relates to a cable guiding and fixing device for wind turbines on loess slopes. Background Art

[0002] A wind turbine refers to a device system that converts wind energy into electrical energy. A wind turbine is generally composed of multiple wind turbine generators distributed in the wild. These generators are connected to the power grid through cables, and cables are used to realize signal transmission, power transmission, data collection, equipment control and other operations.

[0003] The western region is rich in wind resources, and there are many wind turbines on the loess slopes. In order to reduce the impact of harsh environment on power transmission, cables are usually buried underground. In open terrain, professional vehicles are used to lay cables along the cable trench. However, in some areas with narrow terrain, the cables can only be placed in one place, and then placed in the cable trench, and then a winch machine is used to drag the cables to lay them in the cable trench.

[0004] In actual situations, if the cable trench is straight, it is more convenient to lay the cable by dragging it. However, due to some terrain restrictions, the cable trench may bend, so guide devices are placed at these bending corners to guide and limit the cables to prevent them from being damaged by dragging when they are bent. Because rollers are also provided on the guide devices, cable dragging is more labor-saving. However, this construction method requires placing the guide device at the designated position in the cable trench while dragging the cable, which is very inconvenient in actual construction. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a cable guide and fixing device for a wind turbine set on a loess slope, aiming to solve the problems mentioned in the above background technology.

[0006] The embodiment of the present invention is implemented as follows: a guide and fixing device for a cable of a wind turbine generator set on a loess slope, comprising:

[0007] Two power boxes, the top of the power box is fixedly connected to a transmission box arranged horizontally, the bottom of the power box is fixedly connected to a support frame corresponding to the position of the transmission box, a curved guide wheel is rotatably arranged between the support frame and the transmission box, a power source is arranged in the power box, the transmission box is used to transmit the driving force of the power source to drive the curved guide wheel to rotate, a pressure sensor is arranged in the curved guide wheel, casters that can be lifted and lowered in the vertical direction are arranged on both sides of the bottom of the power box, and the curved guide wheels are located on both sides of the laid cables;

[0008] A telescopic connection assembly, the telescopic connection assembly is located on the top of the two power boxes, the two ends of the telescopic connection assembly are respectively fixedly connected to the two power boxes, and the telescopic connection assembly is used to adjust the distance between the two power boxes and can lock the distance;

[0009] When laying the cable, the pressure sensor transmits the pressure data to the control terminal, and the control terminal controls the operation of the guide fixture based on the analysis of the pressure data. The specific steps include:

[0010] Receive real-time pressure data uploaded by pressure sensors on different curved guide wheels, and label them separately to distinguish different sources of pressure data;

[0011] Compare the real-time pressure data of different labels;

[0012] When the difference between the two real-time pressure data is within the set range, a driving instruction is sent to the guide fixing device through the control terminal, so as to make the power source drive the curved guide wheel to rotate, and at this time the caster is at the bottom limit position;

[0013] When the difference between the two real-time pressure data exceeds the set range, an adjustment instruction is sent to the guide fixing device through the control terminal to make the power source drive the curved guide wheel to rotate in the opposite direction and the caster rise to the top limit position.

[0014] Preferably, the telescopic connection assembly includes a base fixedly connected to the top of two power box bodies, wherein a screw is rotatably provided on the base of one of the power box bodies, and a sleeve matching the screw is fixedly connected to the base of the other power box body. The base, screw and sleeve are divided into two groups and are disposed on both sides of the transmission box body. An adjustment box is fixed on the top of the power box body with the screw, and the adjustment box is used to drive the screws on the two bases to rotate synchronously, so that the curved guide wheel with a pressure sensor fixes the cable.

[0015] Preferably, an adjustment handle is provided on one side of the outside of the adjustment box, and a transmission assembly is provided inside the adjustment box, and the transmission assembly is used to transmission-connect the screw rods on both sides with the adjustment handle.

[0016] Preferably, an indicator light is provided on the top of the regulating box;

[0017] When the power boxes on both sides are controlled to move relative to each other by the regulating box, the control terminal receives the pressure data uploaded by the pressure sensor and processes it. The specific steps include:

[0018] Receive pressure data uploaded by two pressure sensors;

[0019] Traverse and select the instantaneous values ​​of two pressure data, where the instantaneous value is the pressure magnitude of the pressure data at a certain time point;

[0020] The average pressure value is obtained by taking the average value of the two instantaneous values;

[0021] A lighting control instruction is generated according to the average pressure value, so that the color of the indicator light changes according to the pressure of the fixed cable.

[0022] Preferably, a plurality of positioning feet are fixedly connected to the bottom of the power box, and the positioning feet are cone-shaped structures.

[0023] Preferably, a lifting mechanism is provided in the power box, and the lifting mechanism is used to drive the casters on both sides to move in the vertical direction.

[0024] Preferably, when the cable is clamped and fixed by the two curved guide wheels, the cable is located in the middle of the curved guide wheels, and the step of comparing the real-time pressure data of different labels specifically includes:

[0025] Perform time alignment processing on two real-time pressure data;

[0026] Integrate the two real-time pressure data based on the time axis to obtain a pressure-time graph, wherein the pressure-time graph includes two pressure curves representing different real-time pressure data;

[0027] Calculate the pressure difference between two pressure curves at the same time node.

[0028] The cable guide and fixing device for a wind turbine generator set on a loess slope provided by the embodiment of the present invention has the following beneficial effects:

[0029] The present invention utilizes the curved guide wheels on both sides to limit the cable. When laying the cable, when the casters contact the bottom surface of the cable trench, the rotation of the curved guide wheels will cause the device as a whole to crawl along the cable. At the same time, the pressure sensor will be used to collect the pressure on the curved guide wheels on both sides. By utilizing the uneven force on both sides of the bend in the cable trench, the device can identify the position of the bend in the cable trench, and use the retracted casters to make the device stay at this position. At this time, the rotation direction of the curved guide wheels is reversed, so that it can play a role in conveying the cable, and it will also make dragging the cable in the cable trench more labor-saving. In summary, the present device can use the cable to automatically move, and automatically stop when detecting the bend in the cable trench. After the device stops moving, it can play a role in pushing the cable, which can greatly improve the efficiency of cable laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional structural diagram of a cable guide and fixing device for a wind turbine generator set on a loess slope provided by an embodiment of the present invention;

[0031] Figure 2A front view of a cable guide and fixing device for a wind turbine generator set on a loess slope provided by an embodiment of the present invention;

[0032] Figure 3 A three-dimensional structural diagram of a telescopic connection assembly provided in an embodiment of the present invention;

[0033] Figure 4 A three-dimensional schematic diagram of the relevant structure on the power box of a cable guide and fixing device for a wind turbine set on a loess slope provided by an embodiment of the present invention;

[0034] Figure 5 A flow chart of a control terminal according to an embodiment of the present invention controlling the guide fixing device based on analysis of pressure data;

[0035] Figure 6 A flow chart of a control terminal provided in an embodiment of the present invention receiving and processing pressure data uploaded by a pressure sensor;

[0036] Figure 7 A flow chart of comparing real-time pressure data with different labels provided in an embodiment of the present invention.

[0037] In the attached drawings: 1. power box; 2. transmission box; 3. support frame; 4. curved guide wheel; 5. caster; 6. cable; 7. telescopic connection assembly; 701. base; 702. screw rod; 703. sleeve; 704. adjustment box; 705. adjustment handle; 8. indicator light; 9. positioning foot. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0040] like Figure 1 and Figure 2 As shown, a cable guide and fixing device for a wind turbine generator set on a loess slope is provided in one embodiment of the present invention, comprising:

[0041] Two power boxes 1, the top of the power box 1 is fixedly connected with a horizontally arranged transmission box 2, the bottom of the power box 1 is fixedly connected with a support frame 3 corresponding to the position of the transmission box 2, a curved guide wheel 4 is rotatably arranged between the support frame 3 and the transmission box 2, a power source is arranged in the power box 1, the transmission box 2 is used to transmit the driving force of the power source to drive the curved guide wheel 4 to rotate, a chain transmission structure can be arranged in the transmission box 2, and of course a belt transmission structure can also be arranged, a pressure sensor is arranged in the curved guide wheel 4, casters 5 that can be lifted and lowered in the vertical direction are arranged on both sides of the bottom of the power box 1, and the curved guide wheels 4 are located on both sides of the laid cable 6;

[0042] A telescopic connection assembly 7, wherein the telescopic connection assembly 7 is located on the top of the two power boxes 1, and both ends of the telescopic connection assembly 7 are fixedly connected to the two power boxes 1 respectively, and the telescopic connection assembly 7 is used to adjust the distance between the two power boxes 1 and can lock the distance;

[0043] like Figure 5 As shown, when laying the cable 6, the pressure sensor transmits the pressure data to the control terminal, and the control terminal controls the guide fixing device to work based on the analysis of the pressure data. The specific steps include:

[0044] S100, receiving real-time pressure data uploaded by pressure sensors on different curved guide wheels 4, and labeling the two separately to distinguish different sources of pressure data;

[0045] S200, comparing real-time pressure data of different labels;

[0046] S300, when the difference between the two real-time pressure data is within the set range, the control terminal sends a driving instruction to the guide fixing device to make the power source drive the curved guide wheel 4 to rotate, and at this time the caster 5 is at the bottom limit position;

[0047] S400, when the difference between the two real-time pressure data exceeds the set range, an adjustment instruction is sent to the guide fixing device through the control terminal to make the power source drive the curved guide wheel 4 to rotate in the opposite direction and the caster 5 rise to the top limit position.

[0048] It should be noted that after the cable trench is prepared, a section of the cable 6 will be placed in the cable trench in advance, and then the cable 6 will be dragged in the cable trench. However, if the cable 6 encounters a bend in the cable trench, the dragging of the cable 6 will be hindered. At this time, multiple devices can be clamped on the cable 6 through the telescopic connection component 7, and the device will move forward one after another, and then stop at the bend position of the cable trench (realizing the automation of the position adjustment of the device in the cable trench). First, the device can be set at the starting position of the cable trench. In the current state, the area in which the cable 6 contacts the device tends to be a straight line, which corresponds to the above-mentioned pressure data comparison difference being within the set range, because the force acting on the cable 6 and the curved guide wheels 4 on both sides is not much different, and in the current state, the casters 5 are in contact with the bottom of the cable trench. When the curved guide wheels 4 rotate, the entire device will crawl along the cable 6 (so that the device does not need to be directly set When the device moves to the bend, the bending of the cable 6 will cause uneven force on the curved guide wheels 4 on both sides. This is when the pressure data comparison difference exceeds the set range. At this time, it can be determined that the position to which the device moves corresponds to the bend of the cable trench. At this time, the caster 5 will be retracted, so that the bottom of the device directly contacts the bottom of the cable trench, and the device stops moving forward. At this time, the curved guide wheel 4 is controlled to rotate in the opposite direction to push the cable 6 forward and provide assistance for the dragging and laying of the cable 6. Therefore, during the laying process of the cable 6, multiple devices of the present invention work alternately and cooperatively, which can guide the cable 6 and fix the cable 6 at the bend of the cable trench to ensure that it will not deviate. The stopped device can provide forward assistance for the cable 6, thereby achieving smoother dragging of the cable 6 as a whole.

[0049] In one embodiment of the present invention, the present invention uses the curved guide wheels 4 on both sides to limit the cable 6. When laying the cable 6, when the caster 5 contacts the bottom surface of the cable trench, the rotation of the curved guide wheel 4 will cause the device to crawl along the cable 6 as a whole. At the same time, the pressure sensor will be used to collect the pressure on the curved guide wheels 4 on both sides. By utilizing the uneven force on both sides of the bend in the cable trench, the device can identify the position of the bend in the cable trench, and use the retracted caster 5 to make the device stay at this position. At this time, the rotation direction of the curved guide wheel 4 is reversed, so that it can play the role of conveying the cable 6, and it will also make dragging the cable 6 in the cable trench more labor-saving. In summary, the device can use the cable 6 to move automatically, and automatically stop when detecting the bend in the cable trench. After the device stops moving, it can play the role of pushing the cable 6, which can greatly improve the efficiency of laying the cable 6.

[0050] like Figure 3As shown, as a preferred embodiment of the present invention, the telescopic connection assembly 7 includes a base 701 fixedly connected to the top of two power housings 1, wherein a screw rod 702 is rotatably provided on the base 701 of one of the power housings 1, and a sleeve 703 matching the screw rod 702 is fixedly connected to the base 701 of the other power housing 1, the base 701, the screw rod 702 and the sleeve 703 are two groups, and are disposed on both sides of the transmission housing 2, and an adjustment box 704 is fixed on the top of the power housing 1 provided with the screw rod 702, and the adjustment box 704 is used to drive the screw rods 702 on the two bases 701 to rotate synchronously, so that the curved guide wheel 4 with a pressure sensor fixes the cable 6.

[0051] In one case of this embodiment, an adjustment handle 705 is provided on one side of the outer side of the adjustment box 704, and a transmission assembly is provided in the adjustment box 704. The transmission assembly is used to transmit and connect the screw rods 702 on both sides with the adjustment handle 705. The transmission assembly can be in the form of gear meshing transmission, and of course, it can also be in the form of chain transmission. This method is relatively conventional, so it will not be described in detail. An indicator light 8 is provided on the top of the adjustment box 704, such as Figure 6 As shown, when the power boxes 1 on both sides are controlled to move relative to each other by the adjustment box 704, the control terminal receives the pressure data uploaded by the pressure sensor and processes it. The specific steps include:

[0052] Step 1, receiving pressure data uploaded by two pressure sensors;

[0053] Step 2, traverse and select the instantaneous values ​​of two pressure data, where the instantaneous value is the pressure magnitude of the pressure data at a certain time point;

[0054] Step 3, averaging the two instantaneous values ​​to obtain an average pressure value;

[0055] Step 4: Generate a lighting control instruction according to the average pressure value, so that the color of the indicator light 8 changes according to the pressure of the fixed cable 6.

[0056] It should be noted that this embodiment is intended to explain how to install the device on the cable 6. By adjusting the handle 705, the two screw rods 702 can be controlled to rotate synchronously, so that the power box 1 is moved closer to or farther away from each other, and the two curved guide wheels 4 can clamp or release the cable 6. However, the clamping of the cable 6 is subject to certain conditions. If the two curved guide wheels 4 are only slightly in contact with the cable 6, the device cannot crawl along the cable 6 and push the cable 6. Therefore, a certain amount of pressure is required when clamping the cable 6 to ensure that there is a certain amount of friction between the curved guide wheels 4 and the cable 6. The pressure can be obtained through a pressure sensor, so it can form a linkage effect with the indicator light 8. When the operator uses the device to clamp the cable 6, he can determine whether it is appropriate based on the color of the indicator light 8, making the use of the device more convenient.

[0057] like Figure 4 As shown, as a preferred embodiment of the present invention, a plurality of positioning feet 9 are fixedly connected to the bottom of the power box 1, and the positioning feet 9 are conical structures. A lifting mechanism is arranged in the power box 1, and the lifting mechanism is used to drive the casters 5 on both sides to move in the vertical direction.

[0058] In one case of the present embodiment, when the caster 5 rises, it will be separated from the bottom surface of the cable trench, and the positioning foot 9 will contact the bottom surface of the cable trench. Because the positioning foot 9 is a conical structure, the device can stay more stably at the specified position in the cable trench, and the device will be more stable and reliable when acting on the cable 6. When the caster 5 drops to the lowest position, the caster 5 will contact the bottom surface of the cable trench, and the positioning foot 9 has also been separated from the bottom surface of the cable trench, so that the device has the conditions for overall movement. It should be noted that the power source and lifting mechanism in the present device all adopt conventional technology. For example, the power source can be in the form of a motor, and the lifting mechanism can be in the form of an electric telescopic device. Both can be provided with energy by a battery arranged in the power box 1. The structure and form are obvious, so they are not described in detail.

[0059] like Figure 2 As shown in FIG. 1 , as a preferred embodiment of the present invention, when the cable 6 is clamped and fixed by the two curved guide wheels 4, the cable 6 is located in the middle of the curved guide wheels 4, as shown in FIG. Figure 7 As shown, the step of comparing real-time pressure data with different labels specifically includes:

[0060] S201, performing time alignment processing on two real-time pressure data;

[0061] S202, integrating two real-time pressure data based on a time axis to obtain a pressure-time graph, wherein the pressure-time graph includes two pressure curves representing different real-time pressure data;

[0062] S203, calculating the pressure difference between the two pressure curves at the same time node.

[0063] In one case of the present embodiment, the position of the cable 6 needs to be limited. When the cable 6 is located in the middle position of the curved guide wheel 4, the cable 6 will be restricted and fixed. Of course, this restriction and fixation will only prevent the cable 6 from deviating in the radial direction, but the axial movement of the cable 6 will not be restricted. After the cable 6 is fixed, dragging the cable 6 will not cause it to swing freely between the curved guide wheels 4, thereby ensuring a more stable interaction between the curved guide wheels 4 and the cable 6. In addition, the pressure sensor in the present device transmits the pressure between the cable 6 and the curved guide wheel 4 in real time, so the pressure data can be used to represent It is a pressure curve with time as the horizontal axis and pressure value as the vertical axis. When the device is located on the straight cable 6, the two pressure curves are almost overlapping, that is, the difference between the two is small, but when the device moves to the bending point of the cable 6 (the same position as the bending point of the cable groove), because the cable 6 is being dragged, if the cable 6 is bent, the force of dragging the cable 6 will be biased toward the curved guide wheel 4 on one side, then there will be a difference between the two pressure curves, and the pressure difference at this time will be reflected in the pressure curve. In this way, the bending point of the cable 6 can be discovered, so as to control the device to stay at this position.

[0064] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cable guide and fixing device for a wind turbine generator set on a loess slope, characterized in that: include: Two power boxes (1), the top of the power box (1) is fixedly connected to a transmission box (2) arranged horizontally, the bottom of the power box (1) is fixedly connected to a support frame (3) corresponding to the position of the transmission box (2), a curved guide wheel (4) is rotatably arranged between the support frame (3) and the transmission box (2), a power source is arranged in the power box (1), the transmission box (2) is used to transmit the driving force of the power source to drive the curved guide wheel (4) to rotate, a pressure sensor is arranged in the curved guide wheel (4), casters (5) capable of being raised and lowered in a vertical direction are arranged on both sides of the bottom of the power box (1), and the curved guide wheels (4) are located on both sides of the laid cable (6); A telescopic connection assembly (7), the telescopic connection assembly (7) being located on the top of the two power boxes (1), the two ends of the telescopic connection assembly (7) being respectively fixedly connected to the two power boxes (1), the telescopic connection assembly (7) being used to adjust the distance between the two power boxes (1) and capable of locking the distance; The power box (1) is provided with a lifting mechanism, and the lifting mechanism is used to drive the casters (5) on both sides to move in the vertical direction; When laying the cable (6), the pressure sensor transmits pressure data to the control terminal, and the control terminal controls the operation of the guide fixing device based on the analysis of the pressure data. The specific steps include: receiving real-time pressure data uploaded by pressure sensors on different curved guide wheels (4), and labeling the two separately to distinguish different sources of pressure data; Compare the real-time pressure data of different labels; When the difference between the two real-time pressure data is within a set range, a driving instruction is sent to the guide fixing device through the control terminal, so as to make the power source drive the curved guide wheel (4) to rotate, and at this time the caster (5) is located at the bottom limit position; When the difference between the two real-time pressure data exceeds a set range, an adjustment instruction is sent to the guide fixing device through the control terminal, so as to cause the power source to drive the curved guide wheel (4) to rotate in the opposite direction and the caster (5) to rise to the top limit position.

2. The cable guide and fixing device for a wind turbine generator set on a loess slope according to claim 1, characterized in that: The telescopic connection assembly (7) comprises a base (701) fixedly connected to the tops of two power boxes (1); a screw rod (702) is rotatably arranged on the base (701) of one of the power boxes (1); a sleeve (703) matching the screw rod (702) is fixedly connected to the base (701) of the other power box (1); the base (701), the screw rod (702) and the sleeve (703) are in two groups and are arranged on both sides of the transmission box (2); an adjustment box (704) is fixedly arranged on the top of the power box (1) provided with the screw rod (702); the adjustment box (704) is used to drive the screw rods (702) on the two bases (701) to rotate synchronously, so that the curved guide wheel (4) with the pressure sensor fixes the cable (6).

3. The cable guide and fixing device for the loess slope wind turbine according to claim 2, characterized in that: An adjusting handle (705) is provided on one side of the outside of the adjusting box (704), and a transmission assembly is provided inside the adjusting box (704). The transmission assembly is used to connect the screw rods (702) on both sides with the adjusting handle (705) through transmission.

4. The cable guide and fixing device for a wind turbine generator set on a loess slope according to claim 2, characterized in that: An indicator light (8) is provided on the top of the regulating box (704); When the relative movement of the power boxes (1) on both sides is controlled by the regulating box (704), the control terminal receives the pressure data uploaded by the pressure sensor and processes it. The specific steps include: Receive pressure data uploaded by two pressure sensors; Traverse and select the instantaneous values ​​of two pressure data, where the instantaneous value is the pressure magnitude of the pressure data at a certain time point; The average pressure value is obtained by taking the average value of the two instantaneous values; A lighting control instruction is generated according to the average pressure value, so that the color of the indicator light (8) changes according to the pressure of the fixed cable (6).

5. The cable guide and fixing device for a wind turbine generator set on a loess slope according to claim 1, characterized in that: A plurality of positioning feet (9) are fixedly connected to the bottom of the power box (1), and the positioning feet (9) are of a cone-shaped structure.

6. The cable guide and fixing device for a wind turbine generator set on a loess slope according to claim 1, characterized in that: When the cable (6) is clamped and fixed by the two curved guide wheels (4), the cable (6) is located in the middle of the curved guide wheels (4), and the step of comparing the real-time pressure data of different labels specifically includes: Perform time alignment processing on two real-time pressure data; Integrate the two real-time pressure data based on the time axis to obtain a pressure-time graph, wherein the pressure-time graph includes two pressure curves representing different real-time pressure data; Calculate the pressure difference between two pressure curves at the same time node.

Images