A pantograph-catenary contact force adjustment method, device, equipment and medium

Abstract

The present application discloses a pantograph-catenary contact force adjustment method, device, equipment and medium, relating to the field of rail transit. Monitor the operating parameters of the pantograph according to a preset period; obtain the recommended parameter range for the pantograph operation in the current period, and obtain the average value of each operating parameter in the previous period; respectively judge whether the average value of each operating parameter is within the corresponding recommended parameter range for the pantograph operation; if not, adjust the pressure of the lifting airbag of the pantograph until the average value of each operating parameter is within the corresponding recommended parameter range for the pantograph operation. It can be seen from this that the above solution monitors the operating parameters of the pantograph and compares the operating parameters with the recommended parameter range of the pantograph; by adjusting the pressure of the lifting airbag of the pantograph, the lifting force of the pantograph is adjusted, and then the average value of the pantograph-catenary contact force distribution and its fluctuation range are adjusted to the recommended parameter range, realizing the adaptive adjustment of the contact force between the pantograph and the catenary, and improving the equipment life.

Description

Technical Field

[0001] The present application relates to the field of rail transit, and particularly to a pantograph-catenary contact force adjustment method, device, equipment and medium. Background Art

[0002] At present, the pressure of the pantograph lifting airbag of a rail vehicle is preset with a relatively stable pressure value at the time of factory. Figure 1 This is a schematic diagram of the mean value and fluctuation range of the traditional pantograph-catenary contact force distribution provided by the embodiments of the present application. As Figure 1 shown, when the pantograph is lifted, the mean value and fluctuation range of the static pantograph-catenary contact pressure acting on the catenary are relatively stable. During the operation of the rail vehicle, the actual pantograph-catenary contact force mainly consists of three aspects: one is the static pantograph-catenary contact pressure acting vertically upward on the catenary by the pantograph; the second is the catenary lifting force. Different types of catenaries (especially flexible catenaries) have different vertical stiffness at each point along the line, and there are elastic differences in the contact suspension itself. The lifting forces at each point of the catenary are different, and it vibrates up and down during operation, thus generating an alternating dynamic contact force; the third is the air electrodynamic force generated by the pantograph during operation under the action of air flow, which increases rapidly with the increase of speed, causing the pantograph-catenary contact force to increase.

[0003] However, due to the preset of the existing pantograph lifting airbag pressure, it is impossible to adaptively adjust the pantograph lifting airbag pressure according to the changes in the catenary type, seasonal temperature changes, and the running speed changes of the rail vehicle, thus it is impossible to adjust the lifting force of the pantograph, and further impossible to adjust the mean value and fluctuation range of the pantograph-catenary contact force distribution. This easily leads to increased wear between the pantograph and the catenary, increased off-line rate, and the occurrence of arcing events.

[0004] In view of the above problems, designing a pantograph-catenary contact force adjustment method that can achieve adaptive adjustment of the contact force between the pantograph and the catenary according to relevant parameters during the operation of the rail vehicle is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the present application is to provide a pantograph-catenary contact force adjustment method, device, equipment and medium, which can achieve adaptive adjustment of the contact force between the pantograph and the catenary according to relevant parameters during the operation of the rail vehicle.

[0006] To solve the above technical problems, the present application provides a pantograph-catenary contact force adjustment method, including:

[0007] Monitoring the operation parameters of the pantograph according to a preset period; wherein, the operation parameters at least include the pantograph-catenary contact force and the vertical acceleration of the pantograph slide plate;

[0008] Obtaining the recommended parameter range of the pantograph operation within the current period, and obtaining the average value of each of the operation parameters in the previous period;

[0009] Judge whether the average values of the respective operating parameters are all within the corresponding recommended pantograph operating parameter ranges;

[0010] If not, adjust the pressure of the pantograph rising airbag until the average values of the respective operating parameters are all within the corresponding recommended pantograph operating parameter ranges.

[0011] Preferably, obtaining the recommended pantograph operating parameter ranges within the current cycle includes:

[0012] Obtain the type of catenary network that the pantograph enters; wherein, the types of catenary network include rigid catenary network and flexible catenary network;

[0013] Obtain the corresponding recommended pantograph operating parameter ranges according to the type of catenary network within the current cycle.

[0014] Preferably, obtaining the corresponding recommended pantograph operating parameter ranges according to the type of catenary network within the current cycle includes:

[0015] When the type of catenary network is the rigid catenary network, obtain the average range of pantograph-catenary contact force distribution and the range of vertical acceleration of the pantograph slide plate corresponding to the rigid catenary network within the current cycle;

[0016] When the type of catenary network is the flexible catenary network, obtain the average range of pantograph-catenary contact force distribution, the range of vertical acceleration of the pantograph slide plate, and the range of pantograph-catenary lift corresponding to the flexible catenary network within the current cycle.

[0017] Preferably, obtaining the recommended pantograph operating parameter ranges within the current cycle includes:

[0018] Obtain the operating information of the locomotive where the pantograph is located; wherein, the operating information includes the operating speed of the locomotive and the operating environment temperature of the locomotive;

[0019] Obtain the corresponding recommended pantograph operating parameter ranges according to the operating information within the current cycle.

[0020] Preferably, before monitoring the operating parameters of the pantograph according to the preset cycle, it further includes:

[0021] Judge whether there is data on the recommended pantograph operating parameter ranges;

[0022] If so, enter the step of monitoring the operating parameters of the pantograph according to the preset cycle;

[0023] If not, output an error prompt and end.

[0024] Preferably, after adjusting the pressure of the lifting airbag of the pantograph, it further includes:

[0025] Generating an adjustment log for adjusting the pressure of the lifting airbag.

[0026] Preferably, it further includes:

[0027] If the pantograph-catenary contact force adjustment is set to manual adjustment, manually confirm the catenary type;

[0028] Obtain the corresponding recommended parameter range for the pantograph operation according to the catenary type;

[0029] Manually adjust the pressure of the lifting airbag of the pantograph according to the recommended parameter range for the pantograph operation.

[0030] To solve the above technical problems, the present application also provides a pantograph-catenary contact force adjustment device, including:

[0031] A monitoring module, configured to monitor the operation parameters of the pantograph according to a preset period; wherein, the operation parameters at least include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider;

[0032] An acquisition module, configured to acquire the recommended parameter range for the pantograph operation in the current period, and acquire the average value of each of the operation parameters in the previous period;

[0033] A judgment module, configured to respectively judge whether the average value of each of the operation parameters is within the corresponding recommended parameter range for the pantograph operation; if not, trigger the adjustment module;

[0034] The adjustment module is configured to adjust the pressure of the lifting airbag of the pantograph until the average value of each of the operation parameters is within the corresponding recommended parameter range for the pantograph operation.

[0035] To solve the above technical problems, the present application also provides a pantograph-catenary contact force adjustment device, including:

[0036] A memory, configured to store a computer program;

[0037] A processor, configured to implement the steps of the above pantograph-catenary contact force adjustment method when executing the computer program.

[0038] To solve the above technical problems, the present application also provides a computer-readable storage medium, on which a computer program is stored, and the computer program realizes the steps of the above pantograph-catenary contact force adjustment method when being executed by a processor.

[0039] The pantograph-catenary contact force adjustment method provided by this application monitors the operating parameters of the pantograph according to a preset period; among them, the operating parameters at least include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider; obtain the recommended parameter range for the pantograph operation within the current period, and obtain the average value of each operating parameter in the previous period; respectively determine whether the average value of each operating parameter is within the corresponding recommended parameter range for the pantograph operation; if not, adjust the pressure of the lifting airbag of the pantograph until the average value of each operating parameter is within the corresponding recommended parameter range for the pantograph operation. It can be seen from this that the above solution monitors the operating parameters of the pantograph and compares the operating parameters with the recommended parameter range of the pantograph; when the operating parameters are not within the recommended parameter range, the pressure of the lifting airbag of the pantograph is adjusted to adjust the upward force of the pantograph, and then the average value of the pantograph-catenary contact force distribution and its fluctuation range are adjusted to the recommended parameter range, realizing the adaptive adjustment of the contact force between the pantograph and the catenary, enhancing the current collection stability between the pantograph and the catenary, reducing the offline rate, and improving the service life of the pantograph slider and the wire network.

[0040] In addition, the embodiments of this application also provide a pantograph-catenary contact force adjustment device, equipment and medium, and the effects are the same as above. Brief Description of the Drawings

[0041] To more clearly illustrate the embodiments of this application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] Figure 1 It is a schematic diagram of the average value and fluctuation range of the pantograph-catenary contact force distribution of the traditional pantograph provided by the embodiments of this application;

[0043] Figure 2 It is a flowchart of a pantograph-catenary contact force adjustment method provided by the embodiments of this application;

[0044] Figure 3 It is a schematic diagram of a pantograph-catenary contact force adjustment device provided by the embodiments of this application;

[0045] Figure 4 It is a schematic diagram of a pantograph-catenary contact force adjustment device provided by the embodiments of this application. Detailed Description of the Embodiments

[0046] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present application.

[0047] The core of the present application is to provide a pantograph-catenary contact force adjustment method, device, equipment and medium.

[0048] In order to enable those skilled in the art to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0049] In current urban rail transit, the overhead catenaries erected along different lines have their own technical differences. According to their suspension methods, they can be divided into two categories: rigid catenary and flexible catenary.

[0050] The rigid catenary has a large vertical stiffness. During the operation of the vehicle on the rigid catenary line, in order to control the pantograph-catenary off-line rate and avoid arcing events, it is often necessary to appropriately increase the contact pressure between the pantograph and the catenary, commonly known as the "pantograph-catenary contact force". However, if the pantograph-catenary contact force is too large, it will accelerate the wear between the pantograph and the catenary, resulting in a significant increase in the maintenance cost of the pantograph and catenary. If the pantograph-catenary contact force is too small, it will lead to an increase in the pantograph off-line rate or arcing events.

[0051] The flexible catenary has a small vertical stiffness, and there are differences in the vertical stiffness along the line, which is the smallest in the horizontal middle distance area between adjacent two cable erection points and the largest in the cable erection area. When the environmental temperature changes, the vertical stiffness of the flexible catenary will also change; for example, the temperature difference between winter and summer is obvious, then the cable expands longitudinally in summer, and the vertical stiffness of the catenary decreases; the cable contracts longitudinally in winter, and the vertical stiffness of the catenary increases. During the operation of the rail vehicle on the flexible catenary line, the height of the pantograph slider from the rail surface fluctuates up and down with the flexible catenary, and due to the change of the vertical stiffness of the catenary, the pantograph-catenary lift amount changes continuously. If the pantograph-catenary contact force is too large, the pantograph-catenary lift amount will be too large during operation, causing local bending of the catenary wire, resulting in fatigue damage of the catenary wire, and at the same time increasing the wear between the pantograph and the catenary. If the pantograph-catenary contact force is too small, it will increase the off-line rate or arcing events, posing a hazard to the operation safety of the rail vehicle.

[0052] Meanwhile, regardless of whether the pantograph enters a rigid catenary or a flexible catenary, during the operation of the pantograph, an aerodynamic force that increases rapidly with the increase in speed is generated under the action of the air flow, which increases the pantograph-catenary contact force, thereby leading to an increase in wear between the pantograph and the catenary. That is, when the running speed of the rail vehicle changes, it has a greater impact on the change of the pantograph-catenary contact force. Therefore, in order to achieve the adaptive adjustment of the contact force between the pantograph and the catenary, the embodiment of the present application provides a method for adjusting the pantograph-catenary contact force. Figure 2 It is a flowchart of a method for adjusting the pantograph-catenary contact force provided by the embodiment of the present application. As Figure 2 shown, the method includes:

[0053] S10: Monitor the operating parameters of the pantograph according to a preset period. Among them, the operating parameters at least include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider.

[0054] During the operation of the rail locomotive, continuously monitor the operating parameters of the pantograph according to a preset period. In this embodiment, there is no limit to the preset period, which is determined according to the specific implementation situation. At the same time, the operating parameters monitored within the preset period at least include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider. In specific implementation, the data of the pantograph-catenary contact force is collected by a pressure sensor on the pantograph slider, and the data of the vertical acceleration of the pantograph slider is collected by a vertical acceleration sensor.

[0055] It should be noted that due to the difference in vertical stiffness between the rigid catenary and the flexible catenary, when the pantograph operates in the rigid catenary, the operating parameters should include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider; when the pantograph operates in the flexible catenary, the operating parameters should include the pantograph-catenary contact force, the vertical acceleration of the pantograph slider and the pantograph-catenary lift amount. It can be understood that in specific implementation, the data of the pantograph-catenary lift amount is collected by a height monitoring sensor from the running rail.

[0056] S11: Obtain the recommended parameter range of the pantograph operation within the current period, and obtain the average value of each operating parameter in the previous period.

[0057] Furthermore, obtain the average value of each operating parameter in the previous period within the current period. Specifically, when the pantograph operates in the rigid catenary, obtain the average value F of the pantograph-catenary contact force and the average value a of the vertical acceleration of the pantograph slider monitored in the previous period; when the pantograph operates in the flexible catenary, obtain the average value F of the pantograph-catenary contact force, the average value a of the vertical acceleration of the pantograph slider and the average value Δh of the pantograph-catenary lift amount monitored in the previous period. At the same time, obtain the recommended parameter range of the pantograph operation within the current period.

[0058] It should be noted that the recommended parameter range for the pantograph operation is the ideal range of the pantograph operation parameters. When the pantograph operation parameters are within the recommended parameter range for the pantograph operation, the pantograph-catenary contact force is within the optimal range at this time, thereby reducing the wear between the pantograph and the catenary, lowering the off-line rate or reducing the occurrence of arcing events, and enhancing the operation safety of the rail vehicle. In this embodiment, there is no limitation on the setting of the recommended parameter range for the pantograph operation, which is determined according to the specific implementation situation.

[0059] S12: Determine whether the average values of the respective operation parameters are all within the corresponding recommended parameter range for the pantograph operation. If not, proceed to step S13.

[0060] S13: Adjust the pressure of the pantograph's lifting airbag until the average values of the respective operation parameters are all within the corresponding recommended parameter range for the pantograph operation.

[0061] To achieve the adaptive adjustment of the pantograph-catenary contact force, specifically, determine whether the average values of the respective operation parameters are all within the corresponding recommended parameter range for the pantograph operation. If not, it indicates that the pantograph-catenary contact force is not within the optimal range at this time, and thus it is necessary to adjust the pressure of the pantograph's lifting airbag, thereby adjusting the upward force of the pantograph until the average values of the respective operation parameters are all within the corresponding recommended parameter range for the pantograph operation, achieving the adaptive adjustment of the pantograph-catenary contact force.

[0062] It should be noted that in the specific implementation, the adjustment of the pressure of the pantograph's lifting airbag can be achieved through pneumatic, hydraulic drive, mechanical transmission, etc. There is no limitation in this embodiment, which is determined according to the specific implementation situation.

[0063] In this embodiment, the operation parameters of the pantograph are monitored according to a preset period; wherein, the operation parameters at least include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider; within the current period, obtain the recommended parameter range for the pantograph operation, and obtain the average values of the respective operation parameters in the previous period; respectively determine whether the average values of the respective operation parameters are all within the corresponding recommended parameter range for the pantograph operation; if not, adjust the pressure of the pantograph's lifting airbag until the average values of the respective operation parameters are all within the corresponding recommended parameter range for the pantograph operation. It can be seen that the above solution monitors the operation parameters of the pantograph and compares the operation parameters with the recommended parameter range of the pantograph; when the operation parameters are not within the recommended parameter range, by adjusting the pressure of the pantograph's lifting airbag, the upward force of the pantograph is adjusted, and further the average value of the pantograph-catenary contact force and its fluctuation range are adjusted to the recommended parameter range, realizing the adaptive adjustment of the contact force between the pantograph and the catenary, enhancing the current collection stability between the pantograph and the catenary, reducing the off-line rate, and increasing the service life of the pantograph slider and the wire network.

[0064] Based on the above embodiment:

[0065] As a preferred embodiment, obtaining the recommended parameter range for the pantograph operation within the current cycle includes:

[0066] Obtaining the type of catenary that the pantograph enters; wherein, the types of catenary include rigid catenary and flexible catenary;

[0067] Obtaining the corresponding recommended parameter range for the pantograph operation according to the type of catenary within the current cycle.

[0068] In a specific implementation, due to the difference in the vertical stiffness between the rigid catenary and the flexible catenary, in order to achieve a more accurate adaptive adjustment of the pantograph-catenary contact force, the recommended parameter ranges for the pantograph operation corresponding to the rigid catenary and the flexible catenary are different. Therefore, when obtaining the recommended parameter range for the pantograph operation within the current cycle, it is first necessary to obtain the type of catenary that the pantograph enters; specifically, by obtaining the ground markings and identifying whether the pantograph enters the rigid catenary or the flexible catenary according to the ground markings.

[0069] Furthermore, obtaining the corresponding recommended parameter range for the pantograph operation according to the type of catenary within the current cycle. That is, when it is confirmed that the pantograph is operating in the rigid catenary, obtaining the recommended parameter range for the pantograph operation corresponding to the rigid catenary; when it is confirmed that the pantograph is operating in the flexible catenary, obtaining the recommended parameter range for the pantograph operation corresponding to the flexible catenary.

[0070] As a preferred embodiment, obtaining the corresponding recommended parameter range for the pantograph operation according to the type of catenary within the current cycle includes:

[0071] When the type of catenary is the rigid catenary, obtaining the average value range of the pantograph-catenary contact force distribution and the vertical acceleration range of the pantograph slide plate corresponding to the rigid catenary within the current cycle;

[0072] When the type of catenary is the flexible catenary, obtaining the average value range of the pantograph-catenary contact force distribution, the vertical acceleration range of the pantograph slide plate, and the pantograph-catenary lift amount range corresponding to the flexible catenary within the current cycle.

[0073] Specifically, since there are differences in the operating parameters of the pantograph monitored in the two catenaries, the corresponding recommended parameter ranges for the pantograph operation in the two catenaries are also different. When the catenary type is a rigid catenary, the mean value range (F1 - ε1, F1 + ε1) of the pantograph-catenary contact force distribution and the vertical acceleration range (-a1, +a1) of the pantograph slider corresponding to the rigid catenary are obtained in the current cycle; when the catenary type is a flexible catenary, the mean value range (F2 - ε2, F2 + ε2) of the pantograph-catenary contact force distribution, the vertical acceleration range (-a2, +a2) of the pantograph slider, and the pantograph-catenary lift range (Δh2 - δ2, Δh2 + δ2) corresponding to the flexible catenary are obtained in the current cycle. Furthermore, in the subsequent judgment process, when the pantograph operates in the rigid catenary, it is respectively judged whether the average value F of the pantograph-catenary contact force and the average value a of the vertical acceleration of the pantograph slider are both within the mean value range (F1 - ε1, F1 + ε1) of the pantograph-catenary contact force distribution and the vertical acceleration range (-a1, +a1) of the pantograph slider; when the pantograph operates in the flexible catenary, it is respectively judged whether the average value F of the pantograph-catenary contact force, the average value a of the vertical acceleration of the pantograph slider, and the average value Δh of the pantograph-catenary lift are all within the mean value range (F2 - ε2, F2 + ε2) of the pantograph-catenary contact force distribution, the vertical acceleration range (-a2, +a2) of the pantograph slider, and the pantograph-catenary lift range (Δh2 - δ2, Δh2 + δ2), so as to realize the adaptive adjustment of the pantograph-catenary contact force.

[0074] Based on the above embodiments:

[0075] As a preferred embodiment, obtaining the recommended parameter range for the pantograph operation in the current cycle includes:

[0076] Obtaining the operation information of the locomotive where the pantograph is located; among them, the operation information includes the running speed of the locomotive and the operating environment temperature of the locomotive;

[0077] Obtaining the corresponding recommended parameter range for the pantograph operation according to the operation information in the current cycle.

[0078] It can be understood that whether the pantograph operates in a rigid catenary or a flexible catenary, an air electro-dynamic force that rapidly increases with the increase in speed generated by the pantograph during operation under the action of the air flow will increase the pantograph-catenary contact force, resulting in an increase in the wear between the pantograph and the catenary. At the same time, the flexible catenary is greatly affected by the environmental temperature, and the change in the environmental temperature will cause a change in the vertical stiffness of the catenary. Therefore, when adaptively adjusting the pantograph-catenary contact force, the above factors also need to be considered.

[0079] Specifically, to address the impact of the operating conditions of the locomotive where the pantograph is located and the surrounding environment on the pantograph-catenary contact force, when obtaining the recommended parameter range for pantograph operation in the current cycle, it is also necessary to consider the operating information of the locomotive where the pantograph is located. Among them, the operating information mainly includes the running speed of the locomotive and the operating environment temperature of the locomotive. Further, based on the operating information, the corresponding recommended parameter range for pantograph operation is obtained in the current cycle, so as to perform range judgment and adaptive adjustment in the follow-up. The following will illustrate the specific process in two cases:

[0080] When the pantograph enters the rigid catenary, due to the relatively large vertical stiffness of the rigid catenary and less influence by the ambient temperature, when obtaining the operating information of the locomotive where the pantograph is located, specifically, the running speed of the locomotive needs to be obtained. When the running speed changes, the corresponding recommended parameter range for pantograph operation is obtained in the current cycle according to the running speed, and subsequently, this recommended parameter range for pantograph operation is compared with the average value of the collected operating parameters, and the pantograph-catenary contact force is adjusted until the average value of the operating parameters is within this recommended parameter range for pantograph operation, achieving the adaptive adjustment of the pantograph-catenary contact force when the running speed of the locomotive changes.

[0081] When the pantograph enters the flexible catenary, since the vertical stiffness of the flexible catenary is relatively small and its vertical stiffness will also change with the change of the ambient temperature. Therefore, when obtaining the operating information of the locomotive where the pantograph is located, specifically, the operating environment temperature of the locomotive needs to be obtained. When the operating environment temperature changes, the corresponding recommended parameter range for pantograph operation is obtained in the current cycle according to the operating environment temperature, and subsequently, this recommended parameter range for pantograph operation is compared with the average value of the collected operating parameters, and the pantograph-catenary contact force is adjusted until the average value of the operating parameters is within this recommended parameter range for pantograph operation, achieving the adaptive adjustment of the pantograph-catenary contact force when the operating environment temperature of the locomotive changes.

[0082] Furthermore, for a locomotive with a pantograph entering the flexible catenary, when its running speed changes, in order to achieve the adaptive adjustment of the pantograph-catenary contact force under the change of the running speed in the flexible catenary, it is necessary to further obtain the corresponding recommended parameter range for pantograph operation in the current cycle according to the running speed of the locomotive on the basis of considering the operating environment temperature of the locomotive, and subsequently, this recommended parameter range for pantograph operation is compared with the average value of the collected operating parameters, and the pantograph-catenary contact force is adjusted until the average value of the operating parameters is within this recommended parameter range for pantograph operation, achieving the adaptive adjustment of the pantograph-catenary contact force under the change of the running speed of the locomotive in the flexible catenary.

[0083] In this embodiment, the running information of the locomotive where the pantograph is located is obtained; where the running information includes the running speed of the locomotive and the running ambient temperature of the locomotive; according to the running information, the corresponding range of recommended running parameters of the pantograph is obtained within the current cycle, taking into account the influence of the running speed of the locomotive where the pantograph is located and the running ambient temperature on the pantograph-catenary contact force. The range of recommended running parameters of the pantograph obtained according to the running information can more accurately realize the adaptive adjustment of the pantograph-catenary contact force.

[0084] Based on the above embodiment:

[0085] As a preferred embodiment, before monitoring the running parameters of the pantograph according to a preset period, it further includes:

[0086] Judge whether there is data on the range of recommended running parameters of the pantograph;

[0087] If so, enter the step of monitoring the running parameters of the pantograph according to a preset period;

[0088] If not, output an error prompt and end.

[0089] In specific implementation, the range of recommended running parameters of the pantograph is the key data for the adaptive adjustment of the pantograph-catenary contact force, and should be stored in the internal database of the locomotive before the locomotive runs, so as to obtain the appropriate range of recommended running parameters of the pantograph for the adaptive adjustment of the pantograph-catenary contact force during the subsequent running of the locomotive. Therefore, before monitoring the running parameters of the pantograph according to a preset period, it is also necessary to judge whether there is data on the range of recommended running parameters of the pantograph. If it is confirmed that there is, the running parameters of the pantograph are monitored according to a preset period. If it is confirmed that there is no, it means that the locomotive does not contain the data on the range of recommended running parameters of the pantograph, which will cause the inability to perform the adaptive adjustment of the pantograph-catenary contact force during the running of the locomotive; therefore, it is necessary to output an error prompt message to indicate that the range of recommended running parameters of the pantograph does not exist, so as to facilitate the maintenance by the staff.

[0090] As a preferred embodiment, after adjusting the pressure of the pantograph's lifting airbag, it further includes:

[0091] Generate an adjustment log for adjusting the pressure of the lifting airbag.

[0092] In specific implementation, in order to better master the situation of the adaptive adjustment of the pantograph-catenary contact force during the running of the locomotive, after adjusting the pressure of the pantograph's lifting airbag, an adjustment log for adjusting the pressure of the lifting airbag is generated, so that each adaptive adjustment process is recorded in the adjustment log, which is convenient for the subsequent staff to view or maintain.

[0093] Based on the above embodiment:

[0094] As a preferred embodiment, it further includes:

[0095] If the pantograph-catenary contact force adjustment is set to manual adjustment, manually confirm the catenary type.

[0096] Obtain the corresponding recommended parameter range for pantograph operation according to the catenary type.

[0097] Manually adjust the pressure of the pantograph lifting airbag according to the recommended parameter range for pantograph operation.

[0098] It can be understood that the adaptive adjustment process of the pantograph-catenary contact force is described in the above embodiments, and the entire adaptive adjustment process is an automatic adjustment process. As a preferred embodiment, in specific implementation, the pantograph-catenary contact force can also be adjusted manually.

[0099] Specifically, if the pantograph-catenary contact force adjustment is set to manual adjustment, first manually confirm the catenary type, that is, visually observe the catenary contacted by the pantograph of the locomotive to determine whether it is a rigid catenary or a flexible catenary. After confirming the catenary type, manually select the corresponding recommended parameter range for pantograph operation according to the current operation condition of the locomotive. It should be noted that the running speed of the locomotive needs to be considered during the selection process. If the catenary is a flexible catenary, the operating environment temperature of the locomotive needs to be considered first. After selecting the recommended parameter range for pantograph operation, the recommended value of the pressure of the lifting airbag can be obtained. Further manually adjust the pressure of the lifting airbag to the recommended value, thereby realizing the manual adjustment of the pantograph-catenary contact force.

[0100] In the above embodiments, the pantograph-catenary contact force adjustment method is described in detail, and the present application also provides corresponding embodiments of the pantograph-catenary contact force adjustment device.

[0101] Figure 3 It is a schematic diagram of a pantograph-catenary contact force adjustment device provided by an embodiment of the present application. As Figure 3 shown, the pantograph-catenary contact force adjustment device includes:

[0102] A monitoring module 10 for monitoring the operation parameters of the pantograph according to a preset period. Among them, the operation parameters at least include the pantograph-catenary contact force and the vertical acceleration of the pantograph slide plate.

[0103] An obtaining module 11 for obtaining the recommended parameter range for pantograph operation in the current period and obtaining the average value of each operation parameter in the previous period.

[0104] A judgment module 12 for respectively judging whether the average value of each operation parameter is within the corresponding recommended parameter range for pantograph operation; if not, trigger the adjustment module.

[0105] The adjustment module 13 is used to adjust the pressure of the lifting airbag of the pantograph until the average values of all operating parameters are within the corresponding recommended operating parameter ranges of the pantograph.

[0106] Since the embodiments in the device part correspond to the embodiments in the method part, please refer to the description of the embodiments in the method part for the embodiments in the device part, and details will not be described here.

[0107] Figure 4 This is a schematic diagram of a pantograph-catenary contact force adjustment device provided by an embodiment of the present application. As Figure 4 shown, the pantograph-catenary contact force adjustment device includes:

[0108] A memory 20 for storing computer programs.

[0109] A processor 21 for implementing the steps of the pantograph-catenary contact force adjustment method mentioned in the above embodiments when executing the computer program.

[0110] The pantograph-catenary contact force adjustment device provided in this embodiment may include, but is not limited to, a smart phone, a tablet computer, a laptop computer, a desktop computer, etc.

[0111] Among them, the processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 may be implemented in at least one hardware form of a digital signal processor (DSP), a field-programmable gate array (FPGA), and a programmable logic array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the wake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 21 may be integrated with a graphics processing unit (GPU), and the GPU is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 21 may also include an artificial intelligence (AI) processor, and the AI processor is used to process computational operations related to machine learning.

[0112] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory and non-volatile memory, such as one or more magnetic disk storage devices and flash storage devices. In this embodiment, the memory 20 is at least used to store the following computer program 201. After the computer program is loaded and executed by the processor 21, it can implement the relevant steps of the pantograph-catenary contact force adjustment method disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, etc., and the storage method may be transient storage or permanent storage. Among them, the operating system 202 may include Windows, Unix, Linux, etc. The data 203 may include, but is not limited to, the data involved in the pantograph-catenary contact force adjustment method.

[0113] In some embodiments, the pantograph-catenary contact force adjustment device may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.

[0114] Those skilled in the art can understand that Figure 4 the structure shown in does not constitute a limitation on the pantograph-catenary contact force adjustment device, and it may include more or fewer components than those shown in the figure.

[0115] Finally, the present application also provides an embodiment corresponding to a computer-readable storage medium. A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, it implements the steps recorded in the foregoing method embodiments.

[0116] It can be understood that if the method in the foregoing embodiments is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0117] The above has introduced in detail a pantograph-catenary contact force adjustment method, device, equipment and medium provided by this application. Each embodiment in the specification is described in a progressive manner. The key point of each embodiment is the difference from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For related parts, reference can be made to the description in the method part. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0118] It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

Claims

1. A method for adjusting the pantograph-catenary contact force, characterized in that, Including: Monitoring the operating parameters of the pantograph according to a preset period; wherein, the operating parameters at least include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider; when the pantograph operates in a rigid catenary, the operating parameters include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider; when the pantograph operates in a flexible catenary, the operating parameters include the pantograph-catenary contact force, the vertical acceleration of the pantograph slider and the pantograph-catenary lift amount; collecting the pantograph-catenary contact force through a pressure sensor on the pantograph slider, collecting the vertical acceleration of the pantograph slider through a vertical acceleration sensor, and collecting the pantograph-catenary lift amount through a height monitoring sensor from the running rail; Obtaining the recommended parameter range of the pantograph operation in the current period, and obtaining the average value of each of the operating parameters in the previous period; Respectively determining whether the average value of each of the operating parameters is within the corresponding recommended parameter range of the pantograph operation; If not, adjusting the pressure of the lifting airbag of the pantograph until the average value of each of the operating parameters is within the corresponding recommended parameter range of the pantograph operation; The obtaining the recommended parameter range of the pantograph operation in the current period includes: When the pantograph enters a rigid catenary, obtaining the running speed of the locomotive where the pantograph is located; Obtaining the corresponding recommended parameter range of the pantograph operation in the current period according to the running speed; When the pantograph enters a flexible catenary, obtaining the running speed and the running environment temperature of the locomotive where the pantograph is located; Obtaining the corresponding recommended parameter range of the pantograph operation in the current period according to the running speed and the running environment temperature; The obtaining the recommended parameter range of the pantograph operation in the current period includes: Obtaining the type of catenary that the pantograph enters; wherein, the type of catenary includes a rigid catenary and a flexible catenary; Obtaining the corresponding recommended parameter range of the pantograph operation in the current period according to the type of catenary; The obtaining the corresponding recommended parameter range of the pantograph operation in the current period according to the type of catenary includes: When the type of catenary is the rigid catenary, obtaining the average value range of the pantograph-catenary contact force corresponding to the rigid catenary and the range of the vertical acceleration of the pantograph slider in the current period; When the type of catenary is the flexible catenary, obtaining the average value range of the pantograph-catenary contact force corresponding to the flexible catenary, the range of the vertical acceleration of the pantograph slider and the range of the pantograph-catenary lift amount in the current period; Before the monitoring the operating parameters of the pantograph according to a preset period, it further includes: Judging whether there is data on the recommended parameter range of the pantograph operation; If so, entering the step of monitoring the operating parameters of the pantograph according to a preset period; If not, outputting an error prompt and ending; After the adjusting the pressure of the lifting airbag of the pantograph, it further includes: Generating an adjustment log for adjusting the pressure of the lifting airbag; It further includes: If the adjustment of the pantograph-catenary contact force is set to manual adjustment, manually confirming the type of catenary; Obtaining the corresponding recommended parameter range of the pantograph operation according to the type of catenary; Manually adjust the pressure of the pantograph's lifting airbag according to the recommended parameter range of the pantograph operation.

2. A pantograph-catenary contact force adjusting device, characterized in that, It includes: A monitoring module for monitoring the operation parameters of the pantograph according to a preset period; wherein, the operation parameters at least include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider; when the pantograph operates in a rigid catenary, the operation parameters include the pantograph-catenary contact force and the vertical acceleration of the pantograph slider; when the pantograph operates in a flexible catenary, the operation parameters include the pantograph-catenary contact force, the vertical acceleration of the pantograph slider, and the pantograph-catenary lift amount; the pantograph-catenary contact force is collected by a pressure sensor on the pantograph slider, the vertical acceleration of the pantograph slider is collected by a vertical acceleration sensor, and the pantograph-catenary lift amount is collected by a height monitoring sensor from the running rail. An acquisition module for acquiring the recommended parameter range of the pantograph operation in the current period and acquiring the average value of each of the operation parameters in the previous period. A judgment module for respectively judging whether the average value of each of the operation parameters is within the corresponding recommended parameter range of the pantograph operation; if not, trigger the adjustment module. The adjustment module is used to adjust the pressure of the pantograph's lifting airbag until the average value of each of the operation parameters is within the corresponding recommended parameter range of the pantograph operation. Wherein, acquiring the recommended parameter range of the pantograph operation in the current period includes: When the pantograph enters a rigid catenary, acquire the running speed of the locomotive where the pantograph is located. Acquire the corresponding recommended parameter range of the pantograph operation in the current period according to the running speed. When the pantograph enters a flexible catenary, acquire the running speed and running environment temperature of the locomotive where the pantograph is located. Acquire the corresponding recommended parameter range of the pantograph operation in the current period according to the running speed and the running environment temperature. The acquiring the recommended parameter range of the pantograph operation in the current period includes: Acquire the type of catenary that the pantograph enters; wherein, the type of catenary includes a rigid catenary and a flexible catenary. Acquire the corresponding recommended parameter range of the pantograph operation in the current period according to the type of catenary. The acquiring the corresponding recommended parameter range of the pantograph operation in the current period according to the type of catenary includes: When the type of catenary is the rigid catenary, acquire the average value range of the pantograph-catenary contact force distribution and the range of the vertical acceleration of the pantograph slider corresponding to the rigid catenary in the current period. When the type of catenary is the flexible catenary, acquire the average value range of the pantograph-catenary contact force distribution, the range of the vertical acceleration of the pantograph slider, and the range of the pantograph-catenary lift amount corresponding to the flexible catenary in the current period. Before monitoring the operation parameters of the pantograph according to the preset period, it further includes: Judge whether there is data on the recommended parameter range of the pantograph operation. If so, enter the step of monitoring the operation parameters of the pantograph according to the preset period. If not, output an error prompt and end. After adjusting the pressure of the pantograph's lifting airbag, it further includes: Generate an adjustment log for adjusting the pressure of the lifting airbag. It also includes: If the pantograph-catenary contact force adjustment is set to manual adjustment, manually confirm the type of the catenary; Obtain the corresponding recommended parameter range for the pantograph operation according to the type of the catenary; Manually adjust the pressure of the pantograph's lifting airbag according to the recommended parameter range for the pantograph operation.

3. A pantograph-catenary contact force adjustment device, characterized in that Comprising: A memory for storing a computer program; A processor for implementing the steps of the pantograph-catenary contact force adjustment method as claimed in claim 1 when executing the computer program.

4. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the pantograph-catenary contact force adjustment method as claimed in claim 1 are implemented.

Images