CN116743622A - Fault detection method and fault detection equipment for network input/output module - Google Patents
Fault detection method and fault detection equipment for network input/output module Download PDFInfo
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Abstract
The application provides a network input/output module fault detection method and fault detection equipment. The method is applied to fault detection equipment, wherein the fault detection equipment is used for replacing a central control unit of a target railway vehicle so as to detect at least one network input/output module in the target railway vehicle; the method comprises the following steps: acquiring the corresponding relation between each output channel and each input channel in each network input/output module; for each output channel, controlling the output channel to output a detection signal, and detecting a feedback signal input by an input channel corresponding to the output channel according to the corresponding relation; and determining a fault detection result of the output channel according to the feedback signal. The application can improve the detection accuracy of the network input/output module.
Description
Technical Field
The application relates to the technical field of rail vehicle detection, in particular to a network input/output module fault detection method and fault detection equipment.
Background
Along with the perfection and development of the functions of the train network control management system, more and more non-intelligent devices need to be accessed into the train network control management system through a network input/output module, and the normal operation of the network input/output module is the basis of the normal operation of the non-intelligent devices and is also an important guarantee for realizing safe and reliable operation of the high-speed motor train unit, so that the functions of the network input/output module need to be accurately detected.
Two paths of independent network input and output modules are adopted in the train to simultaneously control the same non-intelligent device. The existing detection method still detects through manual work, specifically, one network input/output module is manually disconnected, the output channels of the other network input/output module are detected one by one, and the correctness of the functions of the network input/output modules is verified. However, according to the method, maintenance personnel are required to operate step by step according to maintenance files, and the detection efficiency of the network input/output module is low due to the fact that the number of output channels is large and the detection process is complex; through the manual work, still need the maintainer to judge the correctness of network input output module's output channel function according to the action state of actual non-intelligent device, also can increase the required time of detection, lead to network input output module's detection inefficiency.
Disclosure of Invention
The embodiment of the application provides a network input/output module fault detection method and fault detection equipment, which are used for improving the detection efficiency of a network input/output module.
In a first aspect, an embodiment of the present application provides a network input/output module fault detection method, where the method is applied to a fault detection device, where the fault detection device is used to replace a central control unit of a target rail vehicle, so as to detect at least one network input/output module in the target rail vehicle;
the method comprises the following steps:
acquiring the corresponding relation between each output channel and each input channel in each network input/output module;
for each output channel, controlling the output channel to output a detection signal, and detecting a feedback signal input by an input channel corresponding to the output channel according to the corresponding relation;
and determining a fault detection result of the output channel according to the feedback signal.
In one possible implementation manner, obtaining the correspondence between each output channel and each input channel in each network input/output module includes:
acquiring an electrical schematic diagram of a target vehicle;
according to the electrical schematic diagram, determining non-intelligent devices in the target vehicle connected with each output channel in each network input/output module, and determining input channels connected with each non-intelligent device, so as to obtain the corresponding relation between each output channel and each input channel in each network input/output module.
In one possible implementation, the detection signals include a first detection signal and a second detection signal, and the levels of the first detection signal and the second detection signal are opposite;
controlling the output channel to output a detection signal, and detecting a feedback signal input by an input channel corresponding to the output channel according to the corresponding relation, including:
controlling the output channel to output a first detection signal, and detecting a first feedback signal input by an input channel corresponding to the output channel according to the corresponding relation;
and controlling the output channel to output a second detection signal, and detecting a second feedback signal input by the input channel corresponding to the output channel according to the corresponding relation.
In one possible implementation, determining the fault detection result of the output channel according to the feedback signal includes:
judging whether the first feedback signal is normal or not according to the first detection signal, and judging whether the second feedback signal is normal or not according to the second detection signal;
if the first feedback signal and the second feedback signal are normal, determining that the fault detection result of the output channel is normal in function;
otherwise, determining that the fault detection result of the output channel is fault.
In one possible implementation manner, after determining the fault detection result of the output channel according to the feedback signal, the method further includes:
and labeling fault test results with faults for each network input/output module, and generating an output channel test report of the network input/output module.
In a second aspect, an embodiment of the present application provides a network input/output module fault detection apparatus, which is applied to a fault detection device, where the fault detection device is used to replace a central control unit of a target vehicle, so as to detect at least one network input/output module in the target vehicle;
the network input/output module fault detection device comprises:
the acquisition module is used for acquiring the corresponding relation between each output channel and each input channel in each network input/output module;
the detection module is used for controlling the output channels to output detection signals for each output channel, and detecting feedback signals input by the input channels corresponding to the output channels according to the corresponding relation;
and the determining module is used for determining the fault detection result of the output channel according to the feedback signal.
In one possible implementation, the detection signals include a first detection signal and a second detection signal, and the levels of the first detection signal and the second detection signal are opposite;
the detection module is specifically used for:
controlling the output channel to output a first detection signal, and detecting a first feedback signal input by an input channel corresponding to the output channel according to the corresponding relation;
and controlling the output channel to output a second detection signal, and detecting a second feedback signal input by the input channel corresponding to the output channel according to the corresponding relation.
In one possible implementation, the determining module is specifically configured to:
judging whether the first feedback signal is normal or not according to the first detection signal, and judging whether the second feedback signal is normal or not according to the second detection signal;
if the first feedback signal and the second feedback signal are normal, determining that the fault detection result of the output channel is normal in function;
otherwise, determining that the fault detection result of the output channel is fault.
In a third aspect, an embodiment of the present application provides a fault detection device comprising an electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method of the first aspect or any one of the possible implementations of the first aspect as described above when the computer program is executed.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the method of the above first aspect or any of the possible implementations of the first aspect.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
according to the embodiment of the application, the central control unit of the target railway vehicle is replaced by the fault detection equipment, at least one network input/output module can be directly controlled by the fault detection equipment, the process of detecting by cooperation of multiple persons can be omitted, the efficiency of detecting faults of the network input/output modules is improved, and the detection and maintenance cost of the railway vehicle is reduced; the fault detection equipment is used for detecting, so that the output channel in one network input/output module can be directly detected, the detection is performed after the other network input/output module in the target railway vehicle is not required to be disconnected, and the damage of repeated power failure to the non-intelligent equipment is avoided; the detection signals are output through the control output channels, and the feedback signals input by the input channels corresponding to the output channels are detected according to the corresponding relation, so that the action state of the non-intelligent equipment can be intuitively obtained, the action state of the non-intelligent equipment is not required to be identified and judged by an maintainer, the fault detection time can be reduced, and the detection efficiency is further improved; the detection is carried out through the corresponding relation between the output channel and the input channel, so that the condition of human error can be avoided, and the detection accuracy of the network input/output module is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an application scenario diagram of a network input/output module fault detection method provided by an embodiment of the present application;
fig. 2 is a flowchart of an implementation of a network input/output module fault detection method according to an embodiment of the present application;
fig. 3 is an application schematic diagram of a network input/output module fault detection method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a network input/output module fault detection device according to an embodiment of the present application;
fig. 5 is a schematic diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following description will be made by way of specific embodiments with reference to the accompanying drawings.
Referring to an application scenario diagram of a network input/output module fault detection method provided by an embodiment of the present application shown in fig. 1, the network input/output module fault detection method provided by the embodiment of the present application is mainly used for detecting network input/output modules in a rail train, in the rail train, each train has two mutually redundant network input/output modules (Input Output Module, IOM), namely IOM1 and IOM2 in fig. 1, and generally, a central control unit simultaneously controls one non-intelligent device through two independent network input/output modules to perform redundancy control, so as to ensure that each network input/output module of the train runs safely and reliably, and each network input/output module has dozens of output channels, which respectively control different non-intelligent devices, and after the two network input/output modules simultaneously execute instructions of a central control unit, respectively control respective output channels; when a certain output channel is abnormal in function, the network input/output module cannot diagnose the abnormal function of the output channel. Under certain specific working conditions, when the output channel of one network input/output module is abnormal in function, the other normal I/O module can still continuously control the non-intelligent equipment, so that the network input/output module of the high-speed motor train unit cannot detect the state of the output channel of the network input/output module, and one network input/output module needs to be powered off to detect the output channel of the other network input/output module.
The fault detection equipment is connected with the rail train through a train network, is used for replacing a central control unit of the target rail vehicle and is used as a main controller of a network system so as to detect at least one network input/output module in the target rail vehicle; different from the central control unit, the fault detection device can independently control any network input/output module, so that when the fault detection device is used for detecting at least one network input/output module, the fault detection device does not need to disconnect another network input/output module in the target railway vehicle and then detect the network input/output module, the fault detection device can directly detect the network input/output module, and the damage to non-intelligent equipment caused by repeated power failure can be avoided.
The fault detection equipment is simultaneously provided with a multifunctional vehicle bus (Multifunction Vehicle Bus, MVB) board card and an Ethernet vehicle marshalling network (Ethernet Consist Network, ECN) board card, so that the detection of the output channels of the network input/output modules of the motor train unit compatible with MVB control and ECN control can be realized.
In a rail train, a plurality of continuous carriages form a traction unit, for example, 1 to 4 carriages are one traction unit, 5 to 8 carriages are another traction unit, each fault detection device can monitor all network input/output modules in one traction unit, namely, each fault detection device can control the output channel of any network input/output module in the corresponding traction unit, and detect the input channel of any network input/output module.
Fig. 2 is a flowchart of an implementation of a network input/output module fault detection method according to an embodiment of the present application, which is described in detail below:
step S201, obtaining a correspondence between each output channel and each input channel in each network input/output module.
In this embodiment, each network input/output module includes a plurality of output channels and a plurality of input channels, each of which controls a non-intelligent device in the rail train, and each of which corresponds to an input channel, and the corresponding relationship between the output channels and the input channels is formed by the non-intelligent devices.
Step S202, for each output channel, controlling the output channel to output a detection signal, and detecting a feedback signal input by an input channel corresponding to the output channel according to the corresponding relation.
In this embodiment, the detection signal is a control signal for controlling a non-intelligent device, such as a high level signal or a low level signal. The non-intelligent device performs corresponding actions according to the received detection signals, generates a feedback signal, and transmits the feedback signal to the corresponding input channel.
Step S203, determining the fault detection result of the output channel according to the feedback signal.
Generally, when controlling the non-intelligent device, a corresponding feedback signal is generated and transmitted to the input channel, and in the existing detection method, the state or feedback signal of the non-intelligent device needs to be observed and recorded manually to realize detection of the output channel.
In this embodiment, the detection signal and the feedback signal are associated, and since the feedback signal is generated according to the received detection signal by the non-intelligent device, if the output channel is normal, the feedback signal has a correspondence relationship with the detection signal, and if the output channel has a fault, the correspondence relationship between the feedback signal and the detection signal is not established, so that the fault detection result of the output channel can be intuitively determined.
The state of the non-intelligent equipment can be intuitively obtained through the feedback signal, so that maintenance personnel are not required to identify and judge the state of the non-intelligent equipment, and the time for fault detection can be reduced; in addition, the condition that the false operation or false recognition easily occurs and the result is misjudged is caused, so that the detection accuracy of the network input/output module is low, and the method of the embodiment can directly obtain the state of the non-intelligent equipment through the feedback signal, so that the condition of human error can be avoided, and the detection accuracy of the network input/output module is improved.
In addition, according to the embodiment, through the corresponding relation between the output channel and the input channel, the corresponding detection signal and feedback signal can be automatically extracted, fault judgment is carried out, automatic detection is realized, and the detection flow is simplified.
According to the embodiment of the application, the central control unit of the target railway vehicle is replaced by the fault detection equipment, at least one network input/output module can be directly controlled by the fault detection equipment, the process of detecting by cooperation of multiple persons can be omitted, the efficiency of detecting faults of the network input/output modules is improved, and the detection and maintenance cost of the railway vehicle is reduced; the fault detection equipment is used for detecting, so that the output channel in one network input/output module can be directly detected, the detection is performed after the other network input/output module in the target railway vehicle is not required to be disconnected, and the damage of repeated power failure to the non-intelligent equipment is avoided; the detection signals are output through the control output channels, and the feedback signals input by the input channels corresponding to the output channels are detected according to the corresponding relation, so that the action state of the non-intelligent equipment can be intuitively obtained, the action state of the non-intelligent equipment is not required to be identified and judged by an maintainer, the fault detection time can be reduced, and the detection efficiency is further improved; the detection is carried out through the corresponding relation between the output channel and the input channel, so that the condition of human error can be avoided, and the detection accuracy of the network input/output module is improved.
In a possible implementation manner, step S201 obtains a correspondence between each output channel and an input channel in each network input/output module, which may be described in detail as follows:
acquiring an electrical schematic diagram of a target vehicle;
according to the electrical schematic diagram, determining non-intelligent devices in the target vehicle connected with each output channel in each network input/output module, and determining input channels connected with each non-intelligent device, so as to obtain the corresponding relation between each output channel and each input channel in each network input/output module.
In this embodiment, the electrical schematic diagram is provided with the non-intelligent devices, the output channels of the network input/output module and the input channels of the network input/output module, so that the corresponding relationship between each output channel and each input channel can be intuitively determined according to the connection relationship between each output channel and each non-intelligent device and the connection relationship between each non-intelligent device and each input channel.
Specifically, the connection relation between each output channel and each non-intelligent device and the connection relation between each non-intelligent device and each input channel can be obtained according to the port number, the word offset and the bit offset information of the output channel, the port number, the word offset and the bit offset information of the input channel and the communication protocol of the network input/output module and the non-intelligent device.
In addition, the corresponding relation between the output channel and the input channel can be directly obtained, specifically, the corresponding relation between the output channel and the input channel is formed into a configuration table of the fault detection device, and the fault detection device can obtain the corresponding relation between each output channel and each input channel by directly obtaining the configuration table.
In one possible implementation, the detection signals include a first detection signal and a second detection signal, and the levels of the first detection signal and the second detection signal are opposite;
step S202 controls the output channel to output a detection signal, and detects a feedback signal input by an input channel corresponding to the output channel according to a correspondence relationship, which can be described in detail as:
controlling the output channel to output a first detection signal, and detecting a first feedback signal input by an input channel corresponding to the output channel according to the corresponding relation;
and controlling the output channel to output a second detection signal, and detecting a second feedback signal input by the input channel corresponding to the output channel according to the corresponding relation.
In this embodiment, the detection signal has two paths, i.e., a high level signal and a low level signal, of the first detection signal and the second detection signal, which are opposite in level.
If the output channel is normal, the non-intelligent device corresponding to the output channel changes according to the first detection signal and then changes according to the second detection signal, so that two paths of different feedback signals are correspondingly generated and are sequentially transmitted to the input channel, and therefore, the fault detection result of the output channel can be determined by detecting the first feedback signal and the second feedback signal.
Since the non-intelligent device has a state, the state of the non-intelligent device is unknown, and may be a high level state or a low level state when the detection of the output channel is performed; if the non-intelligent device is in a high level state, the detection signal output by the output channel is also in a high level state, and no matter whether the output channel has a fault or not, the detected feedback signal must be in a high level state, and in this case, it is difficult to accurately judge whether the output channel has a fault or not.
Therefore, two paths of detection signals with opposite levels are required to be sequentially output, so that the non-intelligent equipment is in a low-level state and a high-level state, and the state change of the non-intelligent equipment is realized, so that whether the output channel has faults or not is accurately judged.
In one possible implementation manner, step S203 determines the fault detection result of the output channel according to the feedback signal, which may be described in detail as follows:
judging whether the first feedback signal is normal or not according to the first detection signal, and judging whether the second feedback signal is normal or not according to the second detection signal;
if the first feedback signal and the second feedback signal are normal, determining that the fault detection result of the output channel is normal in function;
otherwise, determining that the fault detection result of the output channel is fault.
In this embodiment, the non-intelligent device generates a first feedback signal according to the first detection signal and transmits the first feedback signal to the input channel, and generates a second feedback signal according to the second detection signal and transmits the second feedback signal to the input channel, so that the first feedback signal corresponds to the first detection signal, the second feedback signal corresponds to the second detection signal, and whether the first feedback signal is normal or not can be determined according to the first detection signal, and whether the second feedback signal is normal or not can be determined according to the second detection signal.
When the detection signals are output, the first detection signals and the second detection signals are sequentially output, and if the output channel is normal, the non-intelligent equipment corresponding to the output channel changes according to the first detection signals and then changes according to the second detection signals, so that two paths of different feedback signals are correspondingly generated and sequentially transmitted to the input channel; if the output channel has a fault, the non-intelligent device corresponding to the output channel cannot receive the first detection signal and the second detection signal, and corresponding changes cannot occur, and the detected first feedback signal and the first detection signal may not correspond, or the second feedback signal and the second detection signal may not correspond, so that the fault of the output channel can be judged.
For example, the non-intelligent device generates a high-level feedback signal according to the high-level detection signal and transmits the high-level feedback signal to the input channel, and the non-intelligent device generates a low-level feedback signal according to the low-level detection signal and transmits the low-level feedback signal to the input channel; the current non-intelligent equipment is in a high level state, a first detection signal output by an output channel is in a high level, a second detection signal is in a low level, when the output channel fails, the detected first feedback signal is in a high level, the detected second feedback signal is still in a high level, the first feedback signal is judged to be normal according to the first detection signal, and the second feedback signal is judged to be abnormal according to the second detection signal, so that the output channel can be determined to have a failure.
Alternatively, the judgment can be directly performed according to the two paths of feedback signals, and since the levels of the first detection signal and the second detection signal are opposite and the corresponding levels of the first feedback signal and the second feedback signal are opposite, whether the levels of the first feedback signal and the second feedback signal are opposite or not can be detected, if so, the fault detection result of the output channel is determined to be normal, and if so, the fault detection result of the output channel is determined to be faulty.
In one possible implementation manner, after determining the fault detection result of the output channel according to the feedback signal, the method further includes:
and labeling fault test results with faults for each network input/output module, and generating an output channel test report of the network input/output module.
In this embodiment, the fault test result with a fault is marked, and the output channel with a fault is highlighted, so that an maintainer can process the fault of the output channel with a fault according to the test report of the output channel.
In a specific embodiment, referring to an application schematic diagram of the network input/output module fault detection method shown in fig. 3, the fault detection device connects the first network input/output module (IOM 1) and the second network input/output module (IOM 2) through a train network, and the non-intelligent device connected to the output channel to be detected is a relay.
In the detection process, firstly, an output channel in the IOM1 is detected, a first high-level detection signal is output through the output channel to be detected, so that the relay is electrified, and after the relay is electrified, a high-level feedback signal of an auxiliary contact of the relay is transmitted to an input channel of the IOM 1; obtaining a first feedback signal by detecting a corresponding input channel, and if the first feedback signal is detected to be high level and corresponds to the first detection signal, the first feedback signal is normal; continuously outputting a low-level second detection signal through the output channel to be detected, so that the relay is powered off, and transmitting a low-level feedback signal of the auxiliary contact of the relay to the input channel of the IOM1 after the relay is powered off; obtaining a second feedback signal by detecting the corresponding input channel, and if the second feedback signal is detected to be of a low level and corresponds to the second detection signal, the second feedback signal is normal; since both the first feedback signal and the second feedback signal are normal, it can be determined that the output channel is functioning normally.
After detecting the output channel in the IOM1, the output channel in the IOM2 can be continuously detected, and whether the output channel of the IOM2 has a fault or not is judged.
According to the embodiment of the application, the central control unit of the target railway vehicle is replaced by the fault detection equipment, at least one network input/output module can be directly controlled by the fault detection equipment, the process of detecting by cooperation of multiple persons can be omitted, the efficiency of detecting faults of the network input/output modules is improved, and the detection and maintenance cost of the railway vehicle is reduced; the fault detection equipment is used for detecting, so that the output channel in one network input/output module can be directly detected, the detection is performed after the other network input/output module in the target railway vehicle is not required to be disconnected, and the damage of repeated power failure to the non-intelligent equipment is avoided; the detection signals are output through the control output channels, and the feedback signals input by the input channels corresponding to the output channels are detected according to the corresponding relation, so that the action state of the non-intelligent equipment can be intuitively obtained, the action state of the non-intelligent equipment is not required to be identified and judged by an maintainer, the fault detection time can be reduced, and the detection efficiency is further improved; the interference of the state existing in the non-intelligent equipment can be avoided through the detection signals with opposite levels, whether the output channel has faults or not can be accurately judged, and the detection accuracy is improved; the detection is carried out through the corresponding relation between the output channel and the input channel, so that the condition of human error can be avoided, and the detection accuracy of the network input/output module is improved.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.
The following are device embodiments of the application, for details not described in detail therein, reference may be made to the corresponding method embodiments described above.
Fig. 4 is a schematic structural diagram of a network input/output module fault detection device according to an embodiment of the present application, and for convenience of explanation, only a portion related to the embodiment of the present application is shown, which is described in detail below:
the network input/output module fault detection device is applied to fault detection equipment, and the fault detection equipment is used for replacing a central control unit of a target vehicle so as to detect at least one network input/output module in the target vehicle; as shown in fig. 4, the network input-output module failure detection apparatus 40 includes:
the acquiring module 41 is configured to acquire a correspondence between each output channel and an input channel in each network input/output module;
the detection module 42 is configured to control, for each output channel, the output channel to output a detection signal, and detect, according to a correspondence, a feedback signal input by an input channel corresponding to the output channel;
a determining module 43, configured to determine a fault detection result of the output channel according to the feedback signal.
In one possible implementation, the obtaining module 41 is specifically configured to:
acquiring an electrical schematic diagram of a target vehicle;
according to the electrical schematic diagram, determining non-intelligent devices in the target vehicle connected with each output channel in each network input/output module, and determining input channels connected with each non-intelligent device, so as to obtain the corresponding relation between each output channel and each input channel in each network input/output module.
In one possible implementation, the detection signals include a first detection signal and a second detection signal, and the levels of the first detection signal and the second detection signal are opposite;
the detection module 42 is specifically configured to:
controlling the output channel to output a first detection signal, and detecting a first feedback signal input by an input channel corresponding to the output channel according to the corresponding relation;
and controlling the output channel to output a second detection signal, and detecting a second feedback signal input by the input channel corresponding to the output channel according to the corresponding relation.
In one possible implementation, the determining module 43 is specifically configured to:
judging whether the first feedback signal is normal or not according to the first detection signal, and judging whether the second feedback signal is normal or not according to the second detection signal;
if the first feedback signal and the second feedback signal are normal, determining that the fault detection result of the output channel is normal in function;
otherwise, determining that the fault detection result of the output channel is fault.
In one possible implementation manner, the network input/output module fault detection device 40 further includes a generating module, configured to:
and labeling fault test results with faults for each network input/output module, and generating an output channel test report of the network input/output module.
The embodiment of the application also provides fault detection equipment, which comprises electronic equipment, wherein the electronic equipment comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, and the steps of the network input/output module fault detection method are realized when the processor executes the computer program.
Fig. 5 is a schematic diagram of an electronic device according to an embodiment of the present application. As shown in fig. 5, the electronic device 50 of this embodiment includes: a processor 51, a memory 52 and a computer program 53 stored in the memory 52 and executable on the processor 51. The steps in the above embodiments of the fault detection method for the network input/output module are implemented when the processor 51 executes the computer program 53, for example, steps S201 to S203 shown in fig. 2. Alternatively, the processor 51, when executing the computer program 53, implements the functions of the modules in the above-described device embodiments, such as the functions of the modules 41 to 43 shown in fig. 4.
By way of example, the computer program 53 may be divided into one or more modules/units, which are stored in the memory 52 and executed by the processor 51 to complete the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing particular functions for describing the execution of the computer program 53 in the electronic device 50. For example, the computer program 53 may be split into the modules 41 to 43 shown in fig. 4.
The electronic device 50 may include, but is not limited to, a processor 51, a memory 52. It will be appreciated by those skilled in the art that fig. 5 is merely an example of electronic device 50 and is not intended to limit electronic device 50, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., an electronic device may also include an input-output device, a network access device, a bus, etc.
The processor 51 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 52 may be an internal storage unit of the electronic device 50, such as a hard disk or a memory of the electronic device 50. The memory 52 may also be an external storage device of the electronic device 50, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device 50. Further, the memory 52 may also include both internal and external storage units of the electronic device 50. The memory 52 is used to store computer programs and other programs and data required by the electronic device. The memory 52 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/electronic device and method may be implemented in other manners. For example, the apparatus/electronic device embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the steps of each method embodiment described above may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. The network input/output module fault detection method is characterized in that the method is applied to fault detection equipment, and the fault detection equipment is used for replacing a central control unit of a target railway vehicle so as to detect at least one network input/output module in the target railway vehicle;
the method comprises the following steps:
acquiring the corresponding relation between each output channel and each input channel in each network input/output module;
for each output channel, controlling the output channel to output a detection signal, and detecting a feedback signal input by an input channel corresponding to the output channel according to the corresponding relation;
and determining a fault detection result of the output channel according to the feedback signal.
2. The method for detecting a failure of a network input/output module according to claim 1, wherein obtaining a correspondence between each output channel and an input channel in each network input/output module comprises:
acquiring an electrical schematic diagram of the target vehicle;
according to the electrical schematic diagram, determining non-intelligent devices in the target vehicle connected with each output channel in each network input/output module, and determining input channels connected with each non-intelligent device, so as to obtain the corresponding relation between each output channel and each input channel in each network input/output module.
3. The network input output module failure detection method of claim 1, wherein the detection signals include a first detection signal and a second detection signal, the first detection signal and the second detection signal being opposite in level;
controlling the output channel to output a detection signal, and detecting a feedback signal input by an input channel corresponding to the output channel according to the corresponding relation, including:
controlling the output channel to output a first detection signal, and detecting a first feedback signal input by an input channel corresponding to the output channel according to the corresponding relation;
and controlling the output channel to output a second detection signal, and detecting a second feedback signal input by an input channel corresponding to the output channel according to the corresponding relation.
4. A network input/output module failure detection method according to claim 3, wherein determining the failure detection result of the output channel according to the feedback signal comprises:
judging whether the first feedback signal is normal or not according to the first detection signal, and judging whether the second feedback signal is normal or not according to the second detection signal;
if the first feedback signal and the second feedback signal are normal, determining that the fault detection result of the output channel is normal in function;
otherwise, determining that the fault detection result of the output channel is fault.
5. The network input/output module failure detection method according to claim 4, further comprising, after determining a failure detection result of the output channel according to the feedback signal:
and labeling fault test results with faults for each network input/output module, and generating an output channel test report of the network input/output module.
6. The network input/output module fault detection device is characterized by being applied to fault detection equipment, wherein the fault detection equipment is used for replacing a central control unit of a target vehicle so as to detect at least one network input/output module in the target vehicle;
the network input/output module fault detection device comprises:
the acquisition module is used for acquiring the corresponding relation between each output channel and each input channel in each network input/output module;
the detection module is used for controlling the output channels to output detection signals for each output channel, and detecting feedback signals input by the input channels corresponding to the output channels according to the corresponding relation;
and the determining module is used for determining the fault detection result of the output channel according to the feedback signal.
7. The network input output module failure detection device of claim 6, wherein the detection signals include a first detection signal and a second detection signal, the first detection signal and the second detection signal being opposite in level;
the detection module is specifically used for:
controlling the output channel to output a first detection signal, and detecting a first feedback signal input by an input channel corresponding to the output channel according to the corresponding relation;
and controlling the output channel to output a second detection signal, and detecting a second feedback signal input by an input channel corresponding to the output channel according to the corresponding relation.
8. The network input/output module failure detection apparatus according to claim 7, wherein the determining module is specifically configured to:
judging whether the first feedback signal is normal or not according to the first detection signal, and judging whether the second feedback signal is normal or not according to the second detection signal;
if the first feedback signal and the second feedback signal are normal, determining that the fault detection result of the output channel is normal in function;
otherwise, determining that the fault detection result of the output channel is fault.
9. A fault detection device comprising an electronic device comprising a memory for storing a computer program and a processor for calling and running the computer program stored in the memory, characterized in that the processor implements the steps of the method according to any of the preceding claims 1-5 when the computer program is executed.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any of the preceding claims 1 to 5.
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