Locomotive control method, system, equipment and medium

Abstract

The invention discloses a locomotive control method which comprises the following steps: in response to a received air compressor early warning signal, disconnecting an early warning contactor of an air compressor and generating a running state low level signal; judging whether the number of times of generating the running state low-level signal in a preset time period reaches a threshold value or not; and in response to reaching the threshold value, reducing the running speed of the locomotive in the automatic driving state and entering a constant-speed running state. The invention further discloses a system, computer equipment and a readable storage medium. According to the scheme provided by the invention, the early warning contactor is additionally arranged on the control branch, so that after the early warning signal of the air compressor is detected, the control branch is disconnected, the low-level signal is generated, the number of times of failures in the preset time period is detected, and the driving state of the vehicle is controlled according to the number of times of failures.

Description

Technical Field

[0001] The present invention relates to the field of locomotives, and in particular to a locomotive control method, system, device and storage medium. Background Art

[0002] The air compressor is connected in parallel with a high-temperature protection branch (temperature intermediate relay 2 and temperature intermediate relay closed contact 12), a high-pressure protection branch (pressure intermediate relay 4 and pressure intermediate relay closed contact 13) and an operating status feedback branch (operating status intermediate relay 6 and operating status intermediate relay closed contact 11). When the air compressor is working, the health management system (PHM) monitors the status of the air compressor in real time. When the locomotive is running, the power supply device and the control power supply are put into operation. In the automatic driving state, when the air compressor has a warning condition, the health management system will send the monitored warning information to the locomotive TCMS system. The locomotive TCMS system prompts the air compressor high temperature or high pressure warning on the smart display. At this time, the driver needs to combine the warning condition and the information displayed on the smart display to determine whether it is necessary to exit the automatic driving state and switch to manual driving. When a fault condition occurs, the air compressor will generate a corresponding protection signal and transmit this signal to the locomotive TCMS system and the health management system respectively. After receiving the protection signal, the locomotive TCMS system executes the air compressor protection logic, and the smart display screen simultaneously prompts the air compressor over-temperature and over-pressure fault. After the health management system determines the internal action branch information of the air compressor, it feeds back the judgment result to the locomotive TCMS system and reminds the driver of the air compressor fault source on the smart display screen. At this time, the locomotive is forced to exit the automatic driving state, and the driver needs to determine whether to call for rescue based on the fault condition and the information displayed on the smart display screen.

[0003] However, when a warning condition occurs, the air compressor health management system issues a warning message, and the driver needs to judge whether the current condition is suitable for continuing to maintain the automatic driving state based on his own experience. The driver's work intensity is high and the consistency of operation cannot be guaranteed; there is a rigid conversion between the air compressor warning condition and the fault condition. If the air compressor continues to work after the warning condition occurs, a fault condition will directly occur if the problem is not eliminated, causing the air compressor to fail to work and the locomotive automatic driving state to be forced to exit, affecting driving efficiency. At the same time, the safety and punctuality of the locomotive operation cannot be ensured; the automatic driving system and the air compressor health management system perform their respective duties, and the driver still needs to pay attention to the smart display screen when the locomotive is running, and the intelligent operation efficiency is low.

[0004] Therefore, how to process the warning information without affecting the automatic driving state of the locomotive, ensure operational consistency, and reduce the frequency of failures is an urgent problem to be solved. Summary of the invention

[0005] In view of this, in order to overcome at least one aspect of the above problems, an embodiment of the present invention provides a locomotive control method, comprising the following steps: In response to receiving an air compressor warning signal, disconnecting a warning contactor of the air compressor and generating an operation status low level signal; Determine whether the number of times the running state low level signal is generated within a preset time period reaches a threshold; In response to reaching the threshold, the driving speed of the locomotive in the automatic driving state is reduced and enters a constant speed driving state.

[0006] In some embodiments, in response to receiving an air compressor warning signal, disconnecting the warning contactor of the air compressor and generating an operation status low level signal further comprises: In response to the early warning contactor of the air compressor being disconnected, the early warning contactor closing contact corresponding to the early warning contactor is disconnected; In response to the early warning contactor closing contact being opened, the operation status feedback branch is disconnected and an operation status low level signal is generated.

[0007] In some embodiments, in response to reaching a threshold, reducing the driving speed of the locomotive in the automatic driving state and entering a constant speed driving state further comprises: In response to reaching a threshold, disconnecting a pre-warning automatic switch of the air compressor; Determining whether there is still the automatic warning switch in a closed state; In response to the fact that the early warning automatic switch corresponding to the air compressor is not disconnected, the driving speed of the locomotive in the automatic driving state is reduced and the locomotive enters a constant speed driving state.

[0008] In some embodiments, it also includes: In response to receiving a confirmation resumption of the driving speed instruction input by the user, the locomotive operating speed is increased and the automatic driving state is entered.

[0009] In some embodiments, it also includes: In response to the fact that all the warning automatic switches corresponding to the air compressors are currently in the disconnected state, the locomotive is controlled to exit the automatic driving state.

[0010] In some embodiments, it also includes: In response to the threshold not being reached, the abnormal state is eliminated according to the early warning signal.

[0011] In some embodiments, eliminating the abnormal state according to the warning signal further includes: In response to determining that the air compressor is abnormally high-pressure according to the warning signal, eliminating the abnormal high-pressure state based on a high-pressure abnormality elimination measure; In response to determining that the air compressor is abnormally high in temperature according to the warning signal, eliminating the abnormal high temperature state based on a high temperature abnormality elimination measure; In response to determining that the air compressor is abnormally high-pressure and high-temperature according to the warning signal, the abnormal high-pressure and high-temperature state is eliminated based on high-pressure and high-temperature abnormality elimination measures.

[0012] Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a locomotive control system, comprising: a detection module configured to disconnect a warning contactor of the air compressor and generate a low-level signal of an operating state in response to receiving a warning signal of the air compressor; A judging module, configured to judge whether the number of times the running state low level signal is generated within a preset time period reaches a threshold; The control module is configured to reduce the driving speed of the locomotive in the automatic driving state and enter a constant speed driving state in response to reaching a threshold.

[0013] Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a computer device, including: at least one processor; and A memory storing a computer program executable on the processor, wherein the processor executes the steps of any one of the locomotive control methods described above when executing the program.

[0014] Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of any locomotive control method described above are performed.

[0015] The present invention has one of the following beneficial technical effects: The solution proposed by the present invention adds a warning contactor to the control branch, so that after detecting the air compressor warning signal, the control branch is disconnected, a low-level signal is generated, and the number of faults occurring in a preset time period is detected, and the driving state of the vehicle is controlled according to the number of faults. Thus, the warning condition is monitored more carefully, the occurrence of fault conditions is avoided in real time, the locomotive is prevented from automatically exiting the automatic driving state, and the phenomenon of rigid conversion between the air compressor warning condition and the fault condition is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the connection between an air compressor health system and an air compressor in the prior art; Figure 2 A schematic flow chart of a locomotive control method provided by an embodiment of the present invention; Figure 3 A schematic diagram of the connection between the air compressor health system and the air compressor provided by an embodiment of the present invention; Figure 4 A flowchart of a locomotive control method provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a computer device provided by an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a computer-readable storage medium provided for an embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0019] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0020] In an embodiment of the present invention, Figure 1 and Figure 3 In the figure, each figure symbol represents the following meaning: 1-air compressor; 2-temperature intermediate relay; 3-air compressor temperature switch; 4-pressure intermediate relay; 5-air compressor pressure switch; 6-operation status intermediate relay; 7-fuse; 8-pressure intermediate relay closed contact; 9-temperature intermediate relay closed contact; 10-air compressor timing reset switch; 11-operation status intermediate relay closed contact; 12-temperature intermediate relay closed contact; 13-pressure intermediate relay closed contact; 14-air compressor power switch; 15-air compressor control switch; 16-air compressor power switch; 17-air compressor control switch; 18-air compressor; 19-temperature intermediate relay; 20-air compressor temperature switch; 21-pressure intermediate relay; 22-air compressor pressure switch; 23-operating status intermediate relay; 24-fuse; 25-pressure intermediate relay closed contact; 26-temperature intermediate relay closed contact; 27-air compressor timing reset switch; 28-operating status intermediate relay closed contact; 29-temperature intermediate relay closed contact; 30-pressure intermediate relay closed contact; 31-air compressor early warning automatic switch; 32-air compressor early warning automatic switch; 33-air compressor early warning contactor; 34-air compressor early warning contactor; 35-early warning contactor closed contact; 36-early warning contactor closed contact According to one aspect of the present invention, an embodiment of the present invention provides a locomotive control method, such as Figure 2 As shown, it may include the steps of: S1, in response to receiving an air compressor warning signal, disconnecting the warning contactor of the air compressor and generating an operating state low level signal; S2, determining whether the number of times the running status low level signal is generated within a preset time period reaches a threshold; S3, in response to reaching the threshold, reducing the driving speed of the locomotive in the automatic driving state and entering a constant speed driving state.

[0021] The solution proposed by the present invention is to add a warning contactor to the control branch, so that after detecting the warning signal of the air compressor, the control branch is disconnected, a low-level signal is generated, and the number of faults occurring in a preset time period is detected, and the driving state of the vehicle is controlled according to the number of faults. Thus, the warning working condition is monitored more carefully, the occurrence of fault working conditions is avoided in real time, the locomotive is prevented from automatically exiting the automatic driving state, and the phenomenon of rigid conversion between the warning working condition and the fault working condition of the air compressor is avoided.

[0022] In some embodiments, in response to receiving an air compressor warning signal, disconnecting the warning contactor of the air compressor and generating an operation status low level signal further comprises: In response to the early warning contactor of the air compressor being disconnected, the early warning contactor closing contact corresponding to the early warning contactor is disconnected; In response to the early warning contactor closing contact being opened, the operation status feedback branch is disconnected and an operation status low level signal is generated.

[0023] Specifically, Figure 3 and Figure 4 As shown, a warning contactor 33 / 34 is added between the locomotive control power supply and the air compressor, and a warning contactor closing contact 35 / 36 is added to the air compressor operating status feedback branch (operating status intermediate relay 6 and operating status intermediate relay closing contact 11).

[0024] In this way, when the air compressor has a warning condition, the health diagnosis system collects the warning signal and sends it to the locomotive TCMS system, which will control the air compressor control switch 15 / 16 to disconnect and the air compressor "temporarily shut down". At this time, the air compressor warning contactor 33 / 34 will also be disconnected, causing the warning contactor closing contact 35 / 36 to also be disconnected, resulting in the disconnection of the air compressor operation status feedback branch. At this time, the health management system will detect that the air compressor operation status feedback branch is in a low-level signal state.

[0025] In some embodiments, in response to reaching a threshold, reducing the driving speed of the locomotive in the automatic driving state and entering a constant speed driving state further comprises: In response to reaching a threshold, disconnecting a pre-warning automatic switch of the air compressor; Determining whether there is still the automatic warning switch in a closed state; In response to the fact that the early warning automatic switch corresponding to the air compressor is not disconnected, the driving speed of the locomotive in the automatic driving state is reduced and the locomotive enters a constant speed driving state.

[0026] In some embodiments, it also includes: In response to receiving a confirmation resumption of the driving speed instruction input by the user, the locomotive operating speed is increased and the automatic driving state is entered.

[0027] Specifically, Figure 3 and Figure 4As shown, an air compressor early warning automatic switch 31 / 32 is added between the locomotive power supply and the air compressor. The health management system will count the number of times the air compressor operating status feedback branch is in a low-level signal state within a preset time period, and feed the number back to the locomotive TCMS system. When the number reaches the threshold, it means that the air compressor is in a fault condition at this time. The locomotive TCMS system will disconnect the air compressor early warning automatic switch 31 / 32 to isolate the air compressor under fault conditions to avoid the locomotive being forced to exit the automatic driving state under fault conditions. At the same time, the driving speed of the locomotive in the automatic driving state is reduced to enter the low constant speed mode, providing the driver with air compressor status inspection conditions. If the air compressor can continue to be put into use after inspection, the command to confirm the restoration of the driving speed can be entered in the human-computer interaction page. At this time, the locomotive exits the low constant speed mode and maintains the automatic driving state.

[0028] In some embodiments, it also includes: In response to the fact that all the warning automatic switches corresponding to the air compressors are currently in the disconnected state, the locomotive is controlled to exit the automatic driving state.

[0029] Specifically, each group of air compressors is equipped with an early warning automatic switch, and each locomotive has two early warning automatic switches. The locomotive TCMS system monitors the number of early warning automatic switches that are closed. If the number of early warning automatic switches that are closed is 0, the locomotive exits the automatic driving state.

[0030] In some embodiments, it also includes: In response to the threshold not being reached, the abnormal state is eliminated according to the early warning signal.

[0031] In some embodiments, eliminating the abnormal state according to the warning signal further includes: In response to determining that the air compressor is abnormally high-pressure according to the warning signal, eliminating the abnormal high-pressure state based on a high-pressure abnormality elimination measure; In response to determining that the air compressor is abnormally high in temperature according to the warning signal, eliminating the abnormal high temperature state based on a high temperature abnormality elimination measure; In response to determining that the air compressor is abnormally high-pressure and high-temperature according to the warning signal, the abnormal high-pressure and high-temperature state is eliminated based on high-pressure and high-temperature abnormality elimination measures.

[0032] Specifically, Figure 4As shown, if the locomotive TCMS system receives less than 5 low-level signals of the air compressor's operating status within a preset time period, the locomotive TCMS system takes measures to eliminate the abnormal state according to the warning signal fed back by the health diagnosis system, and the air compressor resumes operation after the abnormal state of the air compressor is eliminated. If the air compressor is determined to be abnormal in high pressure according to the warning signal, the high pressure abnormal state is eliminated based on the high pressure abnormality elimination measures; in response to the air compressor being determined to be abnormal in high temperature according to the warning signal, the high temperature abnormal state is eliminated based on the high temperature abnormality elimination measures; in response to the air compressor being determined to be abnormal in high pressure and high temperature according to the warning signal, the high pressure and high temperature abnormal state is eliminated based on the high pressure and high temperature abnormality elimination measures.

[0033] The solution proposed in the present invention is to add a warning contactor to the control branch, so that after detecting the air compressor warning signal, the control branch is disconnected to generate a low-level signal, and the number of failures in a preset time period is detected. According to the number of failures, the driving state of the vehicle is controlled. In this way, the warning condition can be monitored more carefully, the occurrence of fault conditions can be avoided in real time, the locomotive can be prevented from automatically exiting the automatic driving state, and the phenomenon of rigid conversion between the air compressor warning condition and the fault condition can be avoided. In this way, logical control is performed through the locomotive TCMS system, so that the automatic driving system is more closely connected with the air compressor health management system; through logical judgment, the factors affecting driving efficiency due to air compressor failure are reduced; the driver's workload is reduced, the consistency of operation is ensured, and the running comfort is improved.

[0034] Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a locomotive control system, comprising: a detection module configured to disconnect a warning contactor of the air compressor and generate a low-level signal of an operating state in response to receiving a warning signal of the air compressor; A judging module, configured to judge whether the number of times the running state low level signal is generated within a preset time period reaches a threshold; The control module is configured to reduce the driving speed of the locomotive in the automatic driving state and enter a constant speed driving state in response to reaching a threshold.

[0035] Based on the same inventive concept, according to another aspect of the present invention, Figure 5 As shown, an embodiment of the present invention further provides a computer device 501, including: at least one processor 520; and The memory 510 stores a computer program 511 that can be run on the processor. When the processor 520 executes the program, the steps of any one of the above locomotive control methods are performed.

[0036] Based on the same inventive concept, according to another aspect of the present invention, Figure 6 As shown, an embodiment of the present invention further provides a computer-readable storage medium 601, which stores computer program instructions 610. When the computer program instructions 610 are executed by a processor, the steps of any of the above locomotive control methods are performed.

[0037] Finally, it should be noted that a person skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods.

[0038] Furthermore, it should be appreciated that the computer-readable storage medium (eg, memory) herein may be either volatile memory or nonvolatile memory, or may include both volatile memory and nonvolatile memory.

[0039] It will also be appreciated by those skilled in the art that various exemplary logic blocks, modules, circuits and algorithm steps described in conjunction with the disclosure herein can be implemented as electronic hardware, computer software or a combination of the two. In order to clearly illustrate this interchangeability of hardware and software, a general description has been given to the functions of various schematic components, blocks, modules, circuits and steps. Whether this function is implemented as software or hardware depends on specific applications and the design constraints imposed on the entire system. Those skilled in the art can implement the function in various ways for each specific application, but this implementation decision should not be interpreted as causing a departure from the disclosed scope of the embodiments of the present invention.

[0040] The above are exemplary embodiments disclosed in the present invention, but it should be noted that various changes and modifications may be made without departing from the scope disclosed in the embodiments of the present invention as defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0041] It should be understood that, as used herein, the singular forms "a", "an" are intended to include the plural forms as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations including one or more of the associated listed items.

[0042] The serial numbers of the embodiments disclosed in the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0043] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0044] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A locomotive control method, characterized in that: The following steps are involved: In response to receiving an air compressor warning signal, disconnecting a warning contactor of the air compressor and generating an operation status low level signal; Determine whether the number of times the running state low level signal is generated within a preset time period reaches a threshold; In response to reaching the threshold, the driving speed of the locomotive in the automatic driving state is reduced and enters a constant speed driving state.

2. The method according to claim 1, characterized in that In response to receiving an air compressor early warning signal, disconnecting the early warning contactor of the air compressor and generating an operation status low level signal, further comprising: In response to the early warning contactor of the air compressor being disconnected, the early warning contactor closing contact corresponding to the early warning contactor is disconnected; In response to the early warning contactor closing contact being opened, the operation status feedback branch is disconnected and an operation status low level signal is generated.

3. The method according to claim 1, characterized in that In response to reaching a threshold, reducing the driving speed of the locomotive in the automatic driving state and entering a constant speed driving state, further comprising: In response to reaching a threshold, disconnecting a pre-warning automatic switch of the air compressor; Determining whether there is still the automatic warning switch in a closed state; In response to the fact that the early warning automatic switch corresponding to the air compressor is not disconnected, the driving speed of the locomotive in the automatic driving state is reduced and the locomotive enters a constant speed driving state.

4. The method according to claim 3, characterized in that Also includes: In response to receiving a confirmation resumption of the driving speed instruction input by the user, the locomotive operating speed is increased and the automatic driving state is entered.

5. The method according to claim 2, characterized in that Also includes: In response to the fact that all the warning automatic switches corresponding to the air compressors are currently in the disconnected state, the locomotive is controlled to exit the automatic driving state.

6. The method according to claim 1, characterized in that Also includes: In response to the threshold not being reached, the abnormal state is eliminated according to the early warning signal.

7. The method according to claim 6, characterized in that Eliminating the abnormal state according to the early warning signal further includes: In response to determining that the air compressor is abnormally high-pressure according to the warning signal, eliminating the abnormal high-pressure state based on a high-pressure abnormality elimination measure; In response to determining that the air compressor is abnormally high in temperature according to the warning signal, eliminating the abnormal high temperature state based on a high temperature abnormality elimination measure; In response to determining that the air compressor is abnormally high-pressure and high-temperature according to the warning signal, the abnormal state of high-pressure and high-temperature is eliminated based on high-pressure and high-temperature abnormality elimination measures.

8. A locomotive control system, characterized in that: include: a detection module configured to disconnect a warning contactor of the air compressor and generate a low-level signal of an operating state in response to receiving a warning signal of the air compressor; A judging module, configured to judge whether the number of times the running state low level signal is generated within a preset time period reaches a threshold; The control module is configured to reduce the driving speed of the locomotive in the automatic driving state and enter a constant speed driving state in response to reaching a threshold.

9. A computer device comprising: at least one processor; as well as A memory storing a computer program executable on the processor, wherein the processor executes the steps of the method according to any one of claims 1 to 7 when executing the program.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are performed.

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