Pantograph pressure detection device and method

Abstract

The invention discloses a pantograph pressure detection device which comprises a driving box arranged in the middle of a base plate, transmission chain wheels symmetrically arranged in the driving box, a transmission chain arranged between the transmission chain wheels, a main controller arranged in the driving box, an annular groove formed in the outer side of the driving box, and connecting plates symmetrically arranged on the transmission chain and penetrating through the annular groove. A simulation vehicle head is arranged on the outer side of the connecting plate through a connecting mechanism, a lifting mounting seat is arranged on the simulation vehicle head through an electric lifting rod, wheels are symmetrically arranged below the simulation vehicle head, a detection net mechanism is arranged above the driving box, and a pavement simulation mechanism is arranged on the base plate on the outer side of the driving box; according to the invention, by arranging a plurality of different simulated pavement structures, the pressure detection between the pantograph and the overhead line system can be more fit with the actual vehicle driving condition, and the pantograph pressure detection of vehicles with different lengths can be simulated by adjusting the extension plate. Accurate pressure change data can be provided for perfect design and optimization of the pantograph.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile pantograph detection, and in particular to a pantograph pressure detection device and method. Background Art

[0002] The change of contact pressure between the pantograph and the contact network directly affects the current collecting performance. In order to improve the reliability of the pantograph-catenary system, it is necessary to equip the pantograph-catenary system with a detection device to detect the operating status of the pantograph-catenary system.

[0003] At present, the pressure detection of the pantograph is limited to static pressure detection or contact pressure detection under different acceleration conditions. However, during vehicle driving, due to the diversity of road conditions, the dynamic pressure fluctuation range of the pantograph under different road conditions may exceed or be lower than the rated contact pressure between the pantograph and the contact network. Exceeding the rated pressure range may cause damage to the pantograph or the contact network. Being lower than the rated pressure may cause poor contact between the pantograph and the contact network, resulting in current fluctuations and damage to electrical components such as the vehicle motor, causing losses. That is, the existing device cannot simulate the pressure detection of the pantograph under different road conditions. Therefore, the present invention proposes a pantograph pressure detection device and method to solve the problems existing in the prior art. Summary of the Invention

[0004] In response to the above problems, the purpose of the present invention is to propose a pantograph pressure detection device and method. The pantograph pressure detection device and method can make the pressure detection between the pantograph and the contact network more in line with the actual vehicle driving conditions by setting a variety of different simulated road surface structures. At the same time, multiple groups of pressure sensors connected by connecting rods above the contact network poles can detect the pressure changes of the pantograph when switching between different road sections in real time. The pantograph pressure detection of vehicles with different lengths can also be simulated by adjusting the extension plate, which can provide accurate pressure change data for the perfect design and optimization of the pantograph.

[0005] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a pantograph pressure detection device, including a base plate, a driving mechanism, a connecting mechanism, an installation and moving mechanism, a detection network mechanism and a road surface simulation mechanism, the driving mechanism includes a driving box, a transmission sprocket, a transmission chain, a main controller, an annular groove and a connecting plate, a driving box is provided in the middle of the base plate, the driving box is symmetrically provided with transmission sprockets, a rotating shaft is provided at both ends of the driving box, the transmission sprocket is provided on the rotating shaft, a transmission chain is provided between the transmission sprockets, a main controller is provided in the driving box, an annular groove is provided on the outside of the driving box, and connecting plates are symmetrically provided on the transmission chain through the annular groove, The connecting plate is fixedly connected to a segment of the transmission chain, and the installation and moving mechanism includes a simulated vehicle head, an electric lifting rod, a lifting mounting seat and wheels. A simulated vehicle head is provided on the outside of the connecting plate through a connecting mechanism, and a lifting mounting seat is provided on the simulated vehicle head through an electric lifting rod. The electric lifting rod is embedded in the simulated vehicle head, and the lifting mounting seat is fixedly connected to the telescopic end of the electric lifting rod, and guide rods are also provided between the two sides and the simulated vehicle head. Wheels are symmetrically provided under the simulated vehicle head, and the connection structure of the wheels can be the same as that of a real vehicle, with a steering structure and a shock-absorbing structure. A detection net mechanism is provided above the drive box, and a road simulation mechanism is provided on the base plate outside the drive box.

[0006] Further improvements are: a fixing plate is fixedly provided on one side of the outer side of the connecting plate, a roller is provided between the inner side of the fixing plate and the side walls of the drive box on the upper and lower sides of the annular groove, and the roller is embedded in the inner side of the fixing plate, and the connecting mechanism includes a rotating connector, a connecting sleeve and a connecting column, a rotating connector is provided at the outer end of the connecting plate, a connecting sleeve is provided on the outer side of the rotating connector, and a bearing is rotatably connected between the rear side of the connecting sleeve and the rotating connector, a connecting column is provided on the front side of the simulated vehicle head, an extension ear is provided on the front side of the simulated vehicle head, the connecting column is vertically fixed on the upper side of the extension ear, and the connecting sleeve is sleeved and adapted to the connecting column.

[0007] A further improvement is that an adjustable telescopic rod is symmetrically embedded on the rear side of the simulated vehicle front, an extension plate is provided between the telescopic ends of the adjustable telescopic rod, and wheels are also symmetrically provided below the extension plate, which are used to simulate the pressure change detection of the pantograph under different road conditions for vehicles of different lengths.

[0008] Further improvements are as follows: the detection network mechanism includes a top side plate, a fixed seat, a pressure sensor, a connecting rod and a contact network rod; a top side plate is provided on the upper side of the drive box; fixed seats are symmetrically distributed on the lower side of the top side plate; a connecting rod is provided below the fixed seat through a pressure sensor; a contact network rod is fixedly provided below the connecting plate; and the contact network rod corresponds to the road surface simulation mechanism.

[0009] A further improvement is that the pressure sensor is electrically connected to the main controller, the lower portion of the fixing seat is an embedded groove structure, and the upper end of the connecting rod extends into the groove through the pressure sensor for fixed connection.

[0010] A further improvement is that the road surface simulation mechanism includes an undulating road surface simulation section, a curve pothole simulation section, a straight road uphill and downhill simulation section, and a curve uphill and downhill simulation section, and the undulating road surface simulation section, the curve pothole simulation section, the straight road uphill and downhill simulation section, and the curve uphill and downhill simulation section are distributed in a ring shape on the base plate outside the drive box.

[0011] A further improvement is that a drive motor is also provided in the drive box, and a belt transmission is provided between the output end of the drive motor and the transmission sprocket. Pulleys are provided on the rotating shaft of the transmission sprocket and the output end of the drive motor. The pulleys are driven by a belt. The transmission method can also be a gear belt drive. The drive motor is also electrically connected to the main controller.

[0012] A detection method for a pantograph pressure detection device comprises the following steps:

[0013] Step 1: First, fix the pantograph on the lifting mount, and then adjust the height of the lifting mount by the electric lifting rod to adjust the height of the pantograph so that it contacts and presses against the contact network pole;

[0014] Step 2: Start the drive motor to rotate the transmission sprocket, thereby driving the connecting plate on the transmission chain to move. The connecting plate is connected to the simulated vehicle head through the connecting mechanism, thereby moving the simulated vehicle head and driving it through the road simulation mechanism for diversified testing.

[0015] Step 3: When the simulated vehicle passes through different sections of the road simulation mechanism, the pressure on the upper contact network rod will also change due to different road conditions. The change value is detected by the pressure sensor at the upper end of the connecting rod and transmitted to the terminal for processing in real time by the main controller;

[0016] Step 4: On the straight and flat road section of the road simulation mechanism, the driving motor is controlled to drive the simulated vehicle head to perform acceleration movements at different speeds to detect contact pressure under different acceleration conditions, and the main controller transmits the pressure sensor detection data to the terminal in real time for processing;

[0017] Step 5: On the uphill and downhill sections of the road simulation mechanism, due to different vehicle lengths, the inclination angles of the simulated vehicle front when entering and exiting the uphill and downhill sections are different. The length of the telescopic rod is controlled to adjust the position of the extension plate to adjust the vehicle length. The pressure of the uphill and downhill pantographs of different vehicle lengths is tested, and the pressure sensor transmits the data in real time to the terminal for processing;

[0018] Step 6: The terminal processes the data and makes a final judgment. Based on the judgment result, the structure of the pantograph is redesigned and the fluctuation range of the pressure applied to the contact network pole is adjusted.

[0019] The beneficial effects of the present invention are: by setting up a variety of different simulated pavement structures, the present invention can make the pressure detection between the pantograph and the contact network more in line with the actual vehicle driving conditions, solving the problems existing in traditional static detection devices. At the same time, multiple groups of pressure sensors connected by the connecting rod above the contact network pole can detect the pressure changes of the pantograph when switching between different road sections in real time. The pantograph pressure detection of vehicles with different vehicle lengths can also be simulated by adjusting the extension plate, which can provide accurate pressure change data for the perfect design and optimization of the pantograph, and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a sectional view of the front part of the simulated vehicle according to embodiment 1 of the present invention.

[0021] Figure 2 This is a top sectional view of embodiment 1 of the present invention.

[0022] Figure 3 This is an enlarged cross-sectional structural diagram of point A in Example 1 of the present invention.

[0023] Figure 4 This is a cross-sectional structural diagram of the fixing seat according to embodiment 1 of the present invention.

[0024] Figure 5 This is the main structural diagram of the volt road simulation section in Example 1 of the present invention.

[0025] Figure 6 This is a flow chart of the method of Example 2 of the present invention.

[0026] Among them: 1. Base plate; 2. Drive box; 3. Drive sprocket; 4. Drive chain; 5. Main controller; 6. Annular groove; 7. Connecting plate; 8. Simulated vehicle head; 9. Electric lifting rod; 10. Lifting mounting seat; 11. Wheel; 12. Fixed plate; 13. Roller; 14. Rotating connector; 15. Connecting sleeve; 16. Connecting column; 17. Adjustable telescopic rod; 18. Extension plate; 19. Top side plate; 20. Fixed seat; 21. Pressure sensor; 22. Connecting rod; 23. Contact network pole; 24. Undulating road simulation section; 25. Curved pothole simulation section; 26. Straight uphill and downhill simulation section; 27. Curved uphill and downhill simulation section; 28. Drive motor. DETAILED DESCRIPTION

[0027] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the examples. The examples are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0028] The change in contact pressure between the pantograph and the contact network directly affects the current-collecting performance. If the contact pressure is too low, the pantograph may go offline easily, causing burns at the pantograph-net contact interface. If the contact pressure is too high, the contact wire may bend locally, causing fatigue damage to the contact wire. It may also increase the wear of the slide plate and the contact wire, increasing the replacement frequency of the slide plate, which will increase the operating cost. In severe cases, it may even cause pantograph-net accidents such as broken slide plates or contact wires. Therefore, in order to improve the reliability of the pantograph-net system, it is necessary to equip the pantograph-net system with detection devices to detect the operating status of the pantograph-net system.

[0029] When within the standard height range of the DC contact line network, the pressure of the pantograph system on the contact line network should comply with the relevant provisions of the pantograph technical standards, that is, the static contact pressure between the pantograph and the contact network should be adjustable within the range of 70N-150N, and the pantograph should have stable contact when sliding on the overhead contact network during driving.

[0030] At present, the pressure detection of pantographs is limited to static pressure detection or contact pressure detection under different acceleration conditions. However, during vehicle driving, due to the diversity of road conditions, the dynamic pressure fluctuation range of the pantograph under different road conditions may exceed or be lower than the rated contact pressure between the pantograph and the contact network. Exceeding the rated pressure range may cause damage to the pantograph or the contact network. Being lower than the rated pressure may cause poor contact between the pantograph and the contact network, resulting in current fluctuations and damage to electrical components such as the vehicle motor, causing losses. That is, the existing device cannot simulate the pressure detection of the pantograph under different road conditions.

[0031] Based on the above problems, this embodiment provides a pantograph pressure detection device. Figure 1-Figure 5As shown, the detection device includes a base plate 1, a driving mechanism, a connecting mechanism, an installation and moving mechanism, a detection network mechanism and a road simulation mechanism. The driving mechanism includes a driving box 2, a transmission sprocket 3, a transmission chain 4, a main controller 5, an annular groove 6 and a connecting plate 7. A driving box 2 is provided in the middle of the base plate 1, and the driving sprocket 3 is symmetrically arranged in the driving box 2. A rotating shaft is provided at both ends of the driving box, and the transmission sprocket is provided on the rotating shaft. A transmission chain 4 is provided between the transmission sprockets 3, a main controller 5 is provided in the driving box 2, and an annular groove 6 is provided on the outside of the driving box 2. Connecting plates 7 are symmetrically provided on the transmission chain 4 through the annular groove 6, and the connecting plate is fixed to a segment of the transmission chain. The connection and installation moving mechanism includes a simulated vehicle head 8, an electric lifting rod 9, a lifting mounting seat 10 and wheels 11. The simulated vehicle head 8 is provided on the outside of the connecting plate 7 through the connecting mechanism. The lifting mounting seat 10 is provided on the simulated vehicle head 8 through the electric lifting rod 9. The electric lifting rod is embedded in the simulated vehicle head. The lifting mounting seat is fixedly connected to the telescopic end of the electric lifting rod and guide rods are also provided between the two sides and the simulated vehicle head. Wheels 11 are symmetrically provided under the simulated vehicle head 8. The connection structure of the wheels can be the same as that of a real vehicle, with a steering structure and a shock-absorbing structure. A detection network mechanism is provided above the drive box 2, and a road simulation mechanism is provided on the base plate 1 outside the drive box 2.

[0032] A fixing plate 12 is fixedly provided on one side of the outside of the connecting plate 7, and a roller 13 is provided between the inner side of the fixing plate 12 and the side walls of the drive box 2 on the upper and lower sides of the annular groove 6. The roller is embedded in the inner side of the fixing plate. The connecting mechanism includes a rotating connector 14, a connecting sleeve 15 and a connecting column 16. A rotating connector 14 is provided at the outer end of the connecting plate 7, and a connecting sleeve 15 is provided on the outer side of the rotating connector 14. The rear side of the connecting sleeve and the rotating connector are rotatably connected by a bearing. A connecting column 16 is provided on the front side of the simulated vehicle head 8, and an extension ear is provided on the front side of the simulated vehicle head. The connecting column is vertically fixed on the upper side of the extension ear. The connecting sleeve 15 is socketed and adapted to ensure that the simulated vehicle head and the connecting plate will not fall off when encountering bumpy roads and ups and downs.

[0033] An adjustable telescopic rod 17 is symmetrically embedded on the rear side of the simulated vehicle head 8, an extension plate 18 is provided between the telescopic ends of the adjustable telescopic rod 17, and wheels 11 are also symmetrically provided below the extension plate 18, which are used to simulate the pressure change detection of the pantograph under different road conditions for vehicles of different lengths.

[0034] The detection network mechanism includes a top side plate 19, a fixed seat 20, a pressure sensor 21, a connecting rod 22 and a contact network rod 23. The top side plate 19 is provided on the upper side of the drive box 2, and the fixed seat 20 is symmetrically distributed on the lower side of the top side plate 19. A connecting rod 22 is provided below the fixed seat 20 through the pressure sensor 21. A contact network rod 23 is fixedly provided below the connecting plate 7, and the contact network rod 23 corresponds to the road surface simulation mechanism.

[0035] The pressure sensor 21 is electrically connected to the main controller 5 . The lower portion of the fixing base 20 is an embedded groove structure. The upper end of the connecting rod 22 extends into the groove through the pressure sensor 21 and is fixedly connected.

[0036] The road surface simulation mechanism includes an undulating road surface simulation section 24, a curve pothole simulation section 25, a straight road uphill and downhill simulation section 26, and a curve uphill and downhill simulation section 27. The undulating road surface simulation section 24, the curve pothole simulation section 25, the straight road uphill and downhill simulation section 26, and the curve uphill and downhill simulation section 27 are distributed in a ring shape on the base plate 1 outside the drive box 2.

[0037] The undulating road simulation section is a wave-shaped undulating road surface with a certain length arranged in an staggered manner, simulating a normal continuous undulating road surface; the curved pothole simulation section has multiple irregular potholes that are concave downward, simulating the pothole condition of the curved road surface; the uphill and downhill simulation section on the straight road is divided into uphill, flat and downhill sections, simulating the uphill and downhill road conditions on the straight road; the uphill and downhill simulation section on the curved road is also divided into uphill, flat and downhill sections, but it simulates the uphill and downhill curved road conditions.

[0038] A drive motor 28 is also provided in the drive box 2. A belt transmission is provided between the output end of the drive motor 28 and the transmission sprocket 3. Pulleys are provided on the rotating shaft of the transmission sprocket and the output end of the drive motor. The pulleys are driven by belts. The transmission method can also be a gear belt drive. The drive motor 28 is also electrically connected to the main controller 5.

[0039] Example 2

[0040] According to the instruction manual Figure 6 As shown, this embodiment provides a detection method of a pantograph pressure detection device, comprising the following steps:

[0041] Step 1: First, fix the pantograph on the lifting mount 10, and then adjust the height of the lifting mount 10 by adjusting the height of the electric lifting rod 9 to adjust the height of the pantograph so that it contacts and presses against the contact network pole 23;

[0042] Step 2: Start the drive motor 28 to rotate the transmission sprocket 3, thereby driving the connecting plate 7 on the transmission chain to move. The connecting plate 7 is connected to the simulated vehicle head 8 through a connecting mechanism, thereby moving the simulated vehicle head 8 and driving it through the road simulation mechanism for diversified testing.

[0043] Step 3: When the simulated vehicle head 8 passes through different sections of the road simulation mechanism, the pressure on the upper contact network rod 23 will also change due to different road conditions. The change value is detected by the pressure sensor 21 at the upper end of the connecting rod 22 and transmitted to the terminal for processing in real time by the main controller 5;

[0044] Step 4: On the straight and flat road section of the road simulation mechanism, the driving motor 28 is controlled to drive the simulated vehicle head 8 to perform acceleration movements at different speeds to detect contact pressure under different acceleration conditions, and the main controller 5 transmits the detection data of the pressure sensor 21 to the terminal in real time for processing;

[0045] Step 5: On the uphill and downhill sections of the road simulation mechanism, due to different vehicle lengths, the simulated vehicle head 8 has different inclination angles when entering and exiting the uphill and downhill sections. The length of the telescopic rod 17 is controlled and adjusted to adjust the position of the extension plate 18 to adjust the vehicle length. Pressure detection is performed on the uphill and downhill pantographs of different vehicle lengths. The pressure sensor 21 transmits the data in real time to the terminal for processing;

[0046] Step 6: The terminal processes the data and makes a final judgment. Based on the judgment result, the structure of the pantograph is redesigned and the fluctuation range of the pressure applied to the contact network pole 23 is adjusted.

[0047] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A pantograph pressure detection device, characterized in that: The invention comprises a base plate (1), a driving mechanism, a connecting mechanism, an installation and movement mechanism, a detection network mechanism and a road surface simulation mechanism, wherein the driving mechanism comprises a driving box (2), a transmission sprocket (3), a transmission chain (4), a main controller (5), an annular groove (6) and a connecting plate (7), wherein the driving box (2) is provided in the middle of the upper part of the base plate (1), the driving box (2) is symmetrically provided with transmission sprockets (3), a transmission chain (4) is provided between the transmission sprockets (3), the main controller (5) is provided in the driving box (2), an annular groove (6) is provided on the outer side of the driving box (2), and the transmission A connecting plate (7) is symmetrically provided on the chain (4) through the annular groove (6); the installation and moving mechanism comprises a simulated vehicle head (8), an electric lifting rod (9), a lifting mounting seat (10) and a wheel (11); a simulated vehicle head (8) is provided on the outer side of the connecting plate (7) through a connecting mechanism; a lifting mounting seat (10) is provided on the simulated vehicle head (8) through an electric lifting rod (9); wheels (11) are symmetrically provided below the simulated vehicle head (8); a detection net mechanism is provided above the drive box (2); and a road surface simulation mechanism is provided on the base plate (1) outside the drive box (2).

2. A pantograph pressure detection device according to claim 1, characterized in that: A fixing plate (12) is provided on one side of the outside of the connecting plate (7), and a roller (13) is provided between the inner side of the fixing plate (12) and the side walls of the driving box (2) on the upper and lower sides of the annular groove (6). The connecting mechanism comprises a rotating connecting head (14), a connecting sleeve (15) and a connecting column (16). A rotating connecting head (14) is provided on the outer end of the connecting plate (7), and a connecting sleeve (15) is provided on the outer side of the rotating connecting head (14). A connecting column (16) is provided on the front side of the simulated vehicle head (8), and the connecting sleeve (15) is sleeved and matched with the connecting column (16).

3. A pantograph pressure detection device according to claim 1, characterized in that: An adjustable telescopic rod (17) is symmetrically arranged on the rear side of the simulated vehicle head (8), an extension plate (18) is arranged between the telescopic ends of the adjustable telescopic rod (17), and wheels (11) are also symmetrically arranged below the extension plate (18).

4. A pantograph pressure detection device according to claim 1, characterized in that: The detection network mechanism comprises a top side plate (19), a fixing seat (20), a pressure sensor (21), a connecting rod (22) and a contact network rod (23); the top side plate (19) is provided on the upper side of the driving box (2); the fixing seat (20) is symmetrically distributed on the lower side of the top side plate (19); a connecting rod (22) is provided below the fixing seat (20) through the pressure sensor (21); a contact network rod (23) is provided below the connecting plate (7); and the contact network rod (23) corresponds to the road surface simulation mechanism.

5. A pantograph pressure detection device according to claim 4, characterized in that: The pressure sensor (21) is electrically connected to the main controller (5); the lower portion of the fixing seat (20) is an embedded groove structure; the upper end of the connecting rod (22) extends into the groove through the pressure sensor (21) for fixed connection.

6. A pantograph pressure detection device according to claim 1, characterized in that: The road surface simulation mechanism comprises an undulating road surface simulation section (24), a curved pothole simulation section (25), a straight road uphill and downhill simulation section (26) and a curved uphill and downhill simulation section (27); the undulating road surface simulation section (24), the curved pothole simulation section (25), the straight road uphill and downhill simulation section (26) and the curved uphill and downhill simulation section (27) are distributed in an annular manner on the base plate (1) outside the drive box (2).

7. A pantograph pressure detection device according to claim 1, characterized in that: A driving motor (28) is also provided in the driving box (2), and a belt transmission is provided between the output end of the driving motor (28) and the transmission sprocket (3), and the driving motor (28) is also electrically connected to the main controller (5).

8. A detection method for a pantograph pressure detection device, characterized in that: The following steps are involved: Step 1: first, the pantograph is fixedly mounted above the lifting mounting seat (10), and then the height of the pantograph is adjusted by adjusting the height of the lifting mounting seat (10) through the electric lifting rod (9), so that the pantograph contacts and applies pressure to the contact network pole (23); Step 2: Start the driving motor (28) to drive the transmission sprocket (3) to rotate, thereby driving the connecting plate (7) on the transmission chain to move, and the connecting plate (7) is connected to the simulated vehicle head (8) through a connecting mechanism, thereby moving the simulated vehicle head (8) and driving it to pass through the road simulation mechanism for diversified detection; Step 3: When the simulated vehicle head (8) passes through different sections of the road simulation mechanism, the pressure exerted on the upper contact network rod (23) will also change due to different road conditions. The change value is detected by the pressure sensor (21) at the upper end of the connecting rod (22) and transmitted to the terminal for processing in real time by the main controller (5); Step 4: On the straight and flat road section of the road simulation mechanism, the driving motor (28) is controlled to drive the simulated vehicle head (8) to perform acceleration motions at different speeds to detect contact pressure under different acceleration conditions, and the main controller (5) transmits the detection data of the pressure sensor (21) to the terminal in real time for processing; Step 5: On the uphill and downhill sections of the road simulation mechanism, due to different vehicle lengths, the inclination angles of the simulated vehicle head (8) when entering and exiting the uphill and downhill sections are different. The length of the telescopic rod (17) is controlled to adjust the position of the extension plate (18), the vehicle length is adjusted, and the pressure detection of the uphill and downhill pantographs of different vehicle lengths is performed. The pressure sensor (21) transmits the data in real time to the terminal for processing; Step 6: The terminal processes the data and makes a final judgment, and redesigns the structure of the pantograph and adjusts the fluctuation range of the pressure applied to the contact network pole (23) according to the judgment result.

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