CN115326409A

CN115326409A - Fault positioning method, device and medium for magnetic suspension bus

Info

Publication number: CN115326409A
Application number: CN202211007431.1A
Authority: CN
Inventors: 窦庆山; 向湘林; 王苏丹; 邓钰军; 苏芷玄
Original assignee: Hunan Rail Technology Application Research Center Co ltd
Current assignee: Hunan Rail Technology Application Research Center Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-11-11

Abstract

The application discloses a fault positioning method, a device and a medium of a magnetic levitation bus, which are applied to the field of informatization. The method comprises the steps of reading a first CAN message under normal operation, analyzing the first CAN message to obtain first state parameter information of the maglev bus, and analyzing the first state parameter information to determine a first fault position; if the traction link is determined to be in fault, the fault can be analyzed according to information given by a manufacturer. If the first fault position is a suspension link, sending a test message to the maglev bus, reading a second CAN message inside the maglev bus after the maglev bus receives the test message, analyzing the second CAN message to obtain second state parameter information of the maglev bus, and analyzing the second state parameter information to obtain a second fault position. According to the method and the device, the area which is likely to break down does not need to be comprehensively tested, and only the wireless CAN network of the magnetic levitation bus needs to be used for reading the CAN message, so that the fault position is determined, and the magnetic levitation bus fault CAN be quickly positioned.

Description

Fault positioning method, device and medium for magnetic levitation bus

Technical Field

The present application relates to the field of informatization, and in particular, to a method, an apparatus, and a medium for locating a fault of a magnetic levitation bus.

Background

In the daily operation process of the magnetic levitation bus, various faults can occur, and after the magnetic levitation bus breaks down, generally, maintenance personnel comprehensively test the area which can break down according to self maintenance experience and the fault phenomenon of the vehicle, so that the fault judgment of the magnetic levitation bus is completed.

However, the fault is checked in such a way, the process is complicated, and long time is needed for positioning the fault, so that the time for positioning and maintaining the fault of the magnetic levitation bus is too long.

Therefore, how to realize the quick fault positioning of the magnetic levitation bus is an urgent problem to be solved by the technical personnel in the field.

Disclosure of Invention

The application aims to provide a fault positioning method, a fault positioning device and a fault positioning medium for a magnetic suspension bus, so that the fault of the magnetic suspension bus can be quickly positioned.

In order to solve the technical problem, the present application provides a method for locating a fault of a magnetic levitation bus, including:

reading a first CAN message in the maglev bus under normal running through a wireless CAN network of the maglev bus;

analyzing the first CAN message to obtain first state parameter information of the magnetic levitation bus;

analyzing the first state parameter information to determine a first fault position; the first fault position comprises a suspension link and a traction link;

if the first fault position is the suspension link, sending a test message to the magnetic suspension bus;

reading a second CAN message inside the magnetic levitation bus after the magnetic levitation bus receives the test message through the wireless CAN network;

analyzing the second CAN message to obtain second state parameter information of the magnetic levitation bus;

and analyzing the second state parameter information to obtain a second fault position.

Preferably, the second fault location comprises: a sensor, a control link and an execution link.

Preferably, the second state parameter information includes:

the gap value, the voltage value, the current value, the temperature value and the acceleration value of the sensor;

the method comprises the following steps that card floating information, card messages, card control panel power supply information and life signals of a communication module of a control link are acquired;

and the IGBT driving board feedback signal, the IGBT temperature value, the contactor state signal, the overvoltage and undervoltage state of the bus capacitor, the voltage value of the cable and the current value of the cable of the execution link.

Preferably, the analyzing the second state parameter information to obtain a second fault location includes:

and if any one or more of the gap value, the voltage value, the current value, the temperature value and the acceleration value of the sensor exceeds the corresponding threshold value, determining that the second fault position is the sensor.

and if any one or more of a board floating fault, a board message abnormity, a board control board power abnormity and a life signal abnormity of a communication module of the control link occurs, determining the second fault position as the control link.

and if any one or more of the feedback signal abnormality of the IGBT drive board of the execution link, the IGBT temperature value exceeding a threshold value, the abnormal state signal of the contactor, the overvoltage of the bus capacitor, the undervoltage of the bus capacitor, the voltage value of the cable exceeding the threshold value and the current value of the cable exceeding the threshold value occur, determining that the second fault position is the execution link.

Preferably, the test message is used for controlling the magnetic levitation bus to perform corresponding test actions, where the test actions include vehicle starting, vehicle stopping, vehicle levitation, and operations of various components.

In order to solve the above technical problem, the present application further provides a fault location device for a magnetic levitation bus, including:

the first reading module is used for reading a first CAN message in the maglev bus under normal operation through a wireless CAN network of the maglev bus;

the first analysis module is used for analyzing the first CAN message to obtain first state parameter information of the magnetic levitation bus;

the first analysis module is used for analyzing the first state parameter information to determine a first fault position; wherein the first fault location comprises a suspension link and a traction link;

the sending module is used for sending a test message to the magnetic suspension bus if the first fault position is a suspension link;

the second reading module is used for reading a second CAN message inside the magnetic levitation bus after the magnetic levitation bus receives the test message through the wireless CAN network;

the second analysis module is used for analyzing the second CAN message to obtain second state parameter information of the maglev bus;

and the second analysis module is used for analyzing the second state parameter information to obtain a second fault position.

In order to solve the above technical problem, the present application further provides a fault location device for a magnetic levitation bus, including: a memory for storing a computer program;

and the processor is used for realizing the steps of the fault positioning method of the magnetic suspension bus when executing the computer program.

In order to solve the above technical problem, the present application further provides a computer-readable storage medium, where a computer program is stored, and the computer program, when executed by a processor, implements the steps of the above method for locating a fault of a magnetic levitation bus.

The method for positioning the fault of the maglev bus comprises the steps of reading a first CAN message in the maglev bus under normal operation through a wireless CAN network of the maglev bus, analyzing the first CAN message to obtain first state parameter information of the maglev bus, and analyzing the first state parameter information to determine a first fault position; the first fault position comprises a suspension link and a traction link; if the traction link is determined to be in fault, the fault can be analyzed according to information given by a manufacturer. And if the first fault position is a suspension link, sending a test message to the maglev bus, reading a second CAN message inside the maglev bus after the maglev bus receives the test message through the wireless CAN network, analyzing the second CAN message to obtain second state parameter information of the maglev bus, and analyzing the second state parameter information to obtain a second fault position. According to the method and the device, the area which is likely to break down does not need to be comprehensively tested, and only the wireless CAN network of the magnetic levitation bus needs to be used for reading the CAN message, so that the fault position is determined, and the magnetic levitation bus fault CAN be quickly positioned.

The application also provides a fault positioning device and a computer readable storage medium of the magnetic levitation bus, which correspond to the method, so that the fault positioning device and the computer readable storage medium have the same beneficial effects as the method.

Drawings

In order to more clearly illustrate the embodiments of the present application, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained by those skilled in the art without inventive effort.

Fig. 1 is a flowchart of a fault location method for a magnetic levitation bus according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a magnetic levitation bus bogie according to an embodiment of the present application;

fig. 3 is a schematic diagram of wireless transmission of a magnetic levitation bus and an upper computer provided in the embodiment of the present application;

fig. 4 is a schematic diagram of a host computer functional module according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a fault tree of a magnetic levitation bus according to an embodiment of the present disclosure;

fig. 6 is a structural diagram of a fault location device of a magnetic levitation bus according to an embodiment of the present application;

fig. 7 is a structural diagram of a fault location device of a magnetic levitation bus according to another embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.

The core of the application is to provide a fault positioning method, a device and a medium of the magnetic levitation bus so as to realize the rapid fault positioning of the magnetic levitation bus.

In order that those skilled in the art will better understand the disclosure, the following detailed description is given with reference to the accompanying drawings.

The technical problem to be solved by the application is how to quickly and conveniently perform fault diagnosis according to data of a Controller Area Network (CAN) bus Network in a magnetic suspension bus under the condition that the magnetic suspension bus is in a fault state. Fig. 1 is a flowchart of a method for locating a fault of a magnetic levitation bus according to an embodiment of the present application; as shown in fig. 1, the method comprises the steps of:

s10: and reading a first CAN message in the magnetic levitation bus in normal running through a wireless CAN network of the magnetic levitation bus.

S11: and analyzing the first CAN message to obtain first state parameter information of the maglev bus.

S12: the first state parameter information is analyzed to determine a first fault location.

S13: and if the first fault position is a suspension link, sending a test message to the magnetic suspension bus.

S14: and reading a second CAN message inside the maglev bus after the maglev bus receives the test message through the wireless CAN network.

S15: and analyzing the second CAN message to obtain second state parameter information of the maglev bus.

S16: and analyzing the second state parameter information to obtain a second fault position.

Generally, the application scenario of the scheme provided by the embodiment of the application is that when the magnetic suspension bus breaks down or the magnetic suspension bus is periodically overhauled, the magnetic suspension bus is tested on a special overhauling route. The magnetic levitation bus is controlled to normally run, a wireless CAN network of the magnetic levitation bus CAN generate CAN messages, and faults CAN be located according to the CAN messages. Therefore, the CAN message in the whole vehicle of the maglev bus is read in real time through the wireless CAN network, the CAN message is analyzed to obtain first state parameter information so as to master the state and the working state of equipment in the maglev bus, the fault state and the fault information of the maglev bus are obtained after comprehensive analysis, and a first fault position is obtained through roughly judging the fault state and the fault information, wherein the first fault position comprises a suspension link and a traction link. If the first fault position is a suspension link, generating a test message, sending the test message to the magnetic suspension bus to control the magnetic suspension bus to perform corresponding test action, and verifying the fault state of the magnetic suspension bus according to the second state parameter information in the test action, so that the fault is accurately positioned, and specifically comprises a sensor fault, a control link fault and an execution link fault. If the first fault position is a traction link, complex judging steps are not needed, traction link faults mainly comprise linear motor faults and frequency converter faults, equipment manufacturers can give detailed fault codes and fault message information, and the fault problem of the traction link can be judged only according to the information. The first CAN message and the second CAN message are generated by the maglev bus under different operation scenes, the specific contents of the first CAN message and the second CAN message are different, the first state parameter information and the second state parameter information obtained by analysis are also different, the first state parameter information CAN be approximately the same as the second state parameter information, but the process of analyzing the first state parameter information to determine the first fault position is the approximate judgment of the fault position, if the first state parameter information is any one of a sensor fault, a control link fault and an execution link fault, the first state parameter information is determined to be a suspension link fault, otherwise, the first state parameter information is determined to be a traction link fault. If the first fault position is a suspension link, generating a special test message, and accurately finding the fault position according to a second CAN message generated after the magnetic suspension bus receives the test message.

The working process and principle of the embodiment of the application are as follows: the CAN bus network of the whole maglev bus in the maglev bus sends CAN message information outwards in real time in a wireless transmission mode of a CANWIFI module installed on the bus, when the maglev bus runs normally, the upper computer receives a first CAN message from the diagnosis network through the CANWIFI module, the upper computer obtains various state parameters and component state information (first state parameter information) in the maglev bus through analysis of the first CAN message, possible faults are analyzed according to the current fault state of the maglev bus, if the first fault position is a suspension link, a test message is generated through the upper computer and sent to the maglev bus through the debugging network, the maglev bus is enabled to carry out various test actions in the test state, such as single-point suspension, four-point suspension, advancing and the like, at the moment, a second CAN message is obtained through the diagnosis network, so that various state parameters and component state information (second state parameter information) of the maglev bus in the test action state are obtained, and the faults are precisely positioned after comprehensive fault diagnosis and analysis is carried out. When the upper computer is successfully connected with the vehicle-mounted CANWIFI module, a CAN message in the maglev bus CAN be received, original message data is firstly obtained from a diagnostic network of the maglev bus, vehicle state parameters such as sensor voltage, current, gaps and the like in the message are analyzed through analysis of the message data, and information about states of equipment components such as contactors, IGBTs and other key devices (all are first state parameter information) in the message is analyzed. And integrating the two vehicle information to diagnose the vehicle fault and locate the possible vehicle fault. After the positioning fault is completed, the upper computer generates a corresponding test message according to a possible fault point, the test message is sent to the maglev bus in the maintenance state through the debugging network, the maglev bus enters the maintenance mode after receiving the test message through the debugging network, test actions such as single-point suspension, four-point suspension and the like are carried out in response to the test message, meanwhile, the diagnosis network obtains vehicle state information during testing, the fault of the maglev bus is positioned through comprehensive comparison and analysis of vehicle state parameters and component states, and finally the fault information of the maglev bus is provided for maintenance personnel.

The present embodiment accesses the existing CAN bus network in the vehicle in a wireless manner, and solves the problem of distance influence caused by the traditional wired connection manner. The method comprises the steps of acquiring the internal state information of the maglev bus in real time by receiving message data in a CAN network, monitoring the health state of the maglev bus in the working state of the maglev bus by analyzing the message data, integrating the CAN message data of each device, preliminarily judging fault points by a fault diagnosis algorithm, generating a test message according to abnormal data in the CAN message, sending the test message information to the maglev bus by an upper computer, acquiring the state message information sent to the outside by the internal diagnosis network of the maglev bus when the maglev bus responds to the test message, and carrying out fault diagnosis and positioning on the fault of the maglev bus by integrating the received feedback message information.

Fig. 2 is a schematic structural diagram of a magnetic levitation bus bogie according to an embodiment of the present application; as shown in fig. 2, the system comprises a suspension controller 1 and a traction frequency converter 2; the suspension controller 1 of the magnetic suspension bus is used as an important component of a suspension system of the magnetic suspension bus, the running state of the equipment directly determines the suspension capacity of the magnetic suspension bus, and the part of the fault is a suspension link fault. The traction frequency converter 2 of the magnetic suspension bus is mainly used for normal operation of the magnetic suspension bus on the track, and the part of faults are traction link faults. The CAN bus communication modes of the CAN bus communication devices are CAN bus communication modes, the CAN bus communication devices are connected together through a CAN bus, the real-time data of the current suspension controller and the traction frequency converter CAN be uploaded to a vehicle control system, and the vehicle control system sends out all CAN message data through a vehicle-mounted CANWIFI module.

Fig. 3 is a schematic diagram of wireless transmission of a magnetic levitation bus and an upper computer provided in the embodiment of the present application; as shown in fig. 3, wireless transmission is performed between the magnetic levitation bus and the upper computer, and the figure includes: the upper computer 3, on-vehicle CANWIFI module 4 and maglev bus 5, the CAN message information is sent to the external world in real time through the CANWIFI module 4 of installation on the car to the maglev bus 5, and the upper computer 3 receives the CAN message of maglev bus in real time, through data processing, acquires the current state parameter information of maglev bus 5.

Fig. 4 is a schematic diagram of a host computer functional module according to an embodiment of the present application; as can be seen from fig. 4, the entire upper computer 3 includes data monitoring and fault diagnosis functions of the diagnostic network, and a test message generation and transmission function of the debug network. The data monitoring and fault diagnosis function of the diagnosis network comprises a maglev bus vehicle parameter and component state processing module 6, which is used for carrying out data analysis on the received CAN message; the fault pre-positioning module 7 is used for comprehensively analyzing the data after the message processing and giving out possible fault reasons so as to determine a first fault position; and finally, a fault diagnosis module 8 is arranged for positioning the fault and giving a fault diagnosis result to determine a second fault position after comprehensive analysis by receiving the CAN message information of the vehicle in the test mode. The test message generating and sending function of the debugging network mainly comprises a test message generating module 9 and a debugging network message sending module 10, wherein the test message generating module 9 is mainly used for analyzing the prepositioned faults of the debugging network and matching the test messages required by the prepositioned faults through a database in the upper computer. The debugging network message sending module 10 is mainly used for sending a test message to be sent to the magnetic suspension bus through the debugging network, so that the magnetic suspension bus enters a test mode and can act in response to the test message, thereby feeding back test data, and transmitting the test data back to the fault diagnosis module through the diagnosis network to locate a fault.

According to the fault positioning method of the maglev bus, a first CAN message in the maglev bus under normal operation is read through a wireless CAN network of the maglev bus, the first CAN message is analyzed to obtain first state parameter information of the maglev bus, and the first state parameter information is analyzed to determine a first fault position; the first fault position comprises a suspension link and a traction link; if the traction link is determined to be in fault, the fault can be analyzed according to information given by a manufacturer. And if the first fault position is a suspension link, sending a test message to the maglev bus, reading a second CAN message inside the maglev bus after the maglev bus receives the test message through the wireless CAN network, analyzing the second CAN message to obtain second state parameter information of the maglev bus, and analyzing the second state parameter information to obtain a second fault position. According to the scheme provided by the embodiment of the application, the area which is likely to break down does not need to be comprehensively tested, and only the CAN message needs to be read through the wireless CAN network of the magnetic levitation bus, so that the fault position is determined, and the magnetic levitation bus fault CAN be quickly positioned.

In the above embodiment, it is mentioned that the first fault location includes: a suspension link and a traction link; and the second fault position corresponding to the traction link is a linear motor and a frequency converter. The embodiment of the present application mainly explains a second fault location corresponding to a suspension link, and specifically includes: the sensor, the control link and the execution link correspond to the second state parameter information, and the second state parameter information comprises: the gap value, the voltage value, the current value, the temperature value and the acceleration value of the sensor; the method comprises the steps of controlling board floating information, board messages, board control board power supply information and life signals of a communication module of a link; the IGBT driving board feedback signal, the IGBT temperature value, the contactor state signal, the overvoltage and undervoltage state of the bus capacitor, the voltage value of the cable and the current value of the cable of the execution link. FIG. 5 is a schematic diagram of a fault tree of a magnetic levitation bus according to an embodiment of the present disclosure; as shown in fig. 5, the failure of the maglev bus is mainly divided into a suspension link failure and a traction link failure, wherein the suspension link failure is mainly divided into a sensor failure, a control link failure and an execution link failure.

Analyzing the second state parameter information to obtain a second fault location comprises: if any one or more of the gap value, the voltage value, the current value, the temperature value and the acceleration value of the sensor exceeds the threshold value, the second fault position is determined to be the sensor, the fault of the sensor is mainly determined according to whether the acquired data exceed the threshold value, the data value acquired by each sensor has a normal working range under the normal working state of the maglev bus, and the fault of the corresponding sensor can be determined when the data value exceeds the normal working range.

And if any one or more of a board lifting fault, a board message abnormity, a board control board power supply abnormity and a life signal abnormity of the communication module occur in the control link, determining the second fault position as the control link, wherein the control link fault mainly refers to a hardware fault mainly based on a core control board, and the expression form of the board fault comprises the life signal abnormity of the communication module and the abnormity of a program carried by the board, so that the message fault and the control abnormity are caused, and the lifting fault occurs in suspension.

If any one or more of the feedback signal abnormality of an IGBT drive board of the execution link, the temperature value of the IGBT exceeds a threshold value, the state signal abnormality of a contactor, the overvoltage of a bus capacitor, the undervoltage of the bus capacitor, the voltage value of a cable exceeds the threshold value and the current value of the cable exceeds the threshold value, a second fault position is determined as the execution link, the execution link is mainly a main loop device in the suspension controller, the main loop device comprises the IGBT module, the contactor, the bus capacitor and the cable, and as shown in figure 5, the fault judgment of the components is mainly fault diagnosis through the voltage current of the main loop and the state feedback of the components. The IGBT module can judge whether a fault occurs according to a fault feedback signal of the driving plate of the IGBT module, and can judge whether the fault occurs according to the condition that whether the temperature value exceeds a normal range and whether short-circuit overcurrent occurs in current. The contactor can judge the fault through the self fault feedback signal. As for the bus capacitor and the cable, the fault state can be determined only by cross-comparing the voltage value of the current flowing through the bus capacitor and the threshold value of the normal state.

The upper computer can perform fault diagnosis by reading the message through reading all message information of the suspension link and the traction link, the fault tree in fig. 5 and the fault diagnosis logic rule described above, send the set test message through the pre-diagnosis result, and acquire the state of the maglev bus, thereby quickly positioning the fault.

In addition, the test message is used for controlling the magnetic levitation bus to perform corresponding test actions, and the test actions can include vehicle starting, vehicle stopping, vehicle levitation and the work of each component. Aiming at different conditions, the magnetic suspension bus can be controlled to carry out different test actions so as to quickly locate faults.

In the above embodiments, the fault location method of the magnetic levitation bus is described in detail, and the present application also provides embodiments corresponding to the fault location device of the magnetic levitation bus. It should be noted that the present application describes the embodiments of the apparatus portion from two perspectives, one from the perspective of the function module and the other from the perspective of the hardware.

Based on the angle of the functional module, this embodiment provides a fault location device of magnetic levitation bus, fig. 6 is a structural diagram of the fault location device of magnetic levitation bus provided by this embodiment of the application, as shown in fig. 6, the device includes:

the first reading module 11 is configured to read a first CAN message inside the maglev bus in normal operation through a wireless CAN network of the maglev bus;

the first analysis module 12 is configured to analyze the first CAN message to obtain first state parameter information of the maglev bus;

the first analysis module 13 is configured to analyze the first state parameter information to determine a first fault location; the first fault position comprises a suspension link and a traction link;

the sending module 14 is configured to send a test message to the magnetic levitation bus if the first fault location is a levitation link;

the second reading module 15 is configured to read, through the wireless CAN network, a second CAN message inside the magnetic levitation bus after receiving the test message;

the second analysis module 16 is configured to analyze the second CAN message to obtain second state parameter information of the maglev bus;

and the second analysis module 17 is configured to analyze the second state parameter information to obtain a second fault location.

Since the embodiments of the apparatus portion and the method portion correspond to each other, please refer to the description of the embodiments of the method portion for the embodiments of the apparatus portion, which is not repeated here.

The fault positioning device of the magnetic suspension bus provided by the embodiment corresponds to the method, and has the same beneficial effects as the method.

Based on the angle of the hardware, the present embodiment provides another fault location device for a magnetic levitation bus, fig. 7 is a structural diagram of the fault location device for the magnetic levitation bus provided in another embodiment of the present application, and as shown in fig. 7, the fault location device for the magnetic levitation bus includes: a memory 20 for storing a computer program;

a processor 21, configured to execute the computer program to implement the steps of the method for locating a fault of a maglev bus as mentioned in the above embodiments.

The processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. 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, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 21 may be integrated with a Graphics Processing Unit (GPU) which is responsible for rendering and drawing the content required to be displayed by the display screen. In some embodiments, the processor 21 may further include an Artificial Intelligence (AI) processor for processing computational operations related to machine learning.

The memory 20 may include one or more computer-readable storage media, which may be non-transitory. Memory 20 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used for storing the following computer program 201, wherein after being loaded and executed by the processor 21, the computer program can implement the relevant steps of the fault location method for a maglev bus disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202, data 203, and the like, and the storage manner may be a transient storage manner or a permanent storage manner. Operating system 202 may include, among others, windows, unix, linux, and the like. The data 203 may include, but is not limited to, data related to a fault location method of a maglev bus, and the like.

In some embodiments, the fault locating device of the maglev bus 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.

It will be appreciated by those skilled in the art that the configuration shown in the figures does not constitute a limitation of the fault locating arrangement of a magnetic levitation bus and may include more or fewer components than those shown.

The fault locating device of the magnetic levitation bus provided by the embodiment of the application comprises a memory and a processor, wherein when the processor executes a program stored in the memory, the following method can be realized: provided is a fault positioning method of a magnetic levitation bus.

The fault locating device of the magnetic levitation bus provided by the embodiment corresponds to the method, and therefore has the same beneficial effects as the method.

Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps as set forth in the above-mentioned method embodiments.

It is understood that, if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially or partially implemented in the form of a software product, which is stored in a storage medium and performs all or part of the steps of the methods described in the embodiments of the present application, or all or part of the technical solution. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The computer-readable storage medium provided by the embodiment corresponds to the method, and therefore has the same beneficial effects as the method.

The method, the device and the medium for locating the fault of the magnetic levitation bus provided by the application are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the same element.

Claims

1. A fault positioning method for a magnetic levitation bus is characterized by comprising the following steps:

analyzing the first state parameter information to determine a first fault position; wherein the first fault location comprises a suspension link and a traction link;

2. The method of claim 1, wherein the second fault location comprises: a sensor, a control link and an execution link.

3. The method of claim 2, wherein the second state parameter information comprises:

the system comprises a control link, a communication module and a control module, wherein the control link comprises board floating information, board messages, board control board power supply information and life signals of the communication module;

4. The method of claim 3, wherein the analyzing the second state parameter information to obtain a second fault location comprises:

5. The method of claim 3, wherein the analyzing the second state parameter information to obtain a second fault location comprises:

and if any one or more of a board floating fault, a board message abnormity, a board control board power supply abnormity and a life signal abnormity of a communication module of the control link occurs, determining the second fault position as the control link.

6. The method of claim 3, wherein the analyzing the second state parameter information to obtain a second fault location comprises:

7. The method of claim 1, wherein the test message is used to control the maglev bus to perform corresponding test actions, and the test actions include vehicle start, vehicle stop, vehicle levitation, and operation of various components.

8. The utility model provides a trouble positioner of magnetic levitation bus which characterized in that includes:

the first reading module is used for reading a first CAN message in the magnetic levitation bus under normal operation through a wireless CAN network of the magnetic levitation bus;

the first analysis module is used for analyzing the first state parameter information to determine a first fault position; the first fault position comprises a suspension link and a traction link;

the sending module is used for sending a test message to the magnetic levitation bus if the first fault position is a levitation link;

the second reading module is used for reading a second CAN message inside the magnetic suspension bus after the magnetic suspension bus receives the test message through the wireless CAN network;

9. The fault locating device of the magnetic levitation bus is characterized by comprising a memory, a first storage device and a second storage device, wherein the memory is used for storing a computer program;

a processor for implementing the steps of the method of fault location of a magnetic levitation bus as claimed in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method for fault localization of a magnetic levitation bus according to any one of claims 1 to 7.