CN115208399B - Fault detection method, device and equipment of ADC (analog to digital converter) module and storage medium - Google Patents
Fault detection method, device and equipment of ADC (analog to digital converter) module and storage medium Download PDFInfo
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- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
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Abstract
The application discloses a fault detection method, a fault detection device, equipment and a storage medium of an ADC (analog to digital converter) module. The method comprises the following steps: acquiring a detection signal, inputting the detection signal into an ADC (analog to digital converter) module, converting the detection signal by using the ADC module to obtain a conversion result, determining the conversion time of the ADC module for converting the detection signal, and if the conversion time is greater than the preset conversion time, finishing fault detection and sending a fault alarm message; if the conversion time is less than or equal to the preset conversion time, comparing the conversion result with the preset conversion result to obtain a comparison result; if the comparison results are the same, acquiring the detection signal again after a preset detection time interval and detecting; if the comparison result is different, the fault detection is ended and a fault alarm message is sent. Thus, cost reduction is achieved and the efficiency of fault detection is improved.
Description
Technical Field
The present disclosure relates to the field of ADC module detection technologies, and in particular, to a method, an apparatus, a device, and a storage medium for detecting a fault of an ADC module.
Background
With the development of electronic technology, analog-to-Digital Converter (ADC) modules are increasingly widely used in vehicle applications as modules for converting Analog signal quantities into Digital signal quantities, but the ADC modules of vehicles need to provide correct Analog-to-Digital conversion functions, for example, when motors are used, voltage signals need to be converted into Digital signals, and the consequences of conversion errors are not obvious.
In order to ensure the normal use of the ADC module in the prior art, two solutions are proposed, one is to add a fault detection mechanism at the system level of the controller, and the other is to embed a fault detection mechanism integrated in the ADC module itself. However, the former solution requires a technician to build a hardware fault detection circuit on the periphery of the ADC module, which increases the workload of the technician and increases the development difficulty. In the latter solution, since a fault detection mechanism needs to be integrated in the ADC module, the area and cost of the chip corresponding to the ADC module may be increased.
Therefore, the problem to be solved by those skilled in the art is to provide an ADC module fault detection mechanism with high efficiency, low cost and high detection efficiency.
Disclosure of Invention
Based on the above problems, the present application provides a method, an apparatus, a device and a storage medium for detecting a fault of an ADC module, so as to provide an ADC module fault detection mechanism with high efficiency, low cost and high detection efficiency.
The embodiment of the application discloses the following technical scheme:
in a first aspect, an embodiment of the present application provides a method for detecting a fault of an ADC module, where the method includes:
acquiring a detection signal;
inputting the detection signal into an ADC module;
converting the detection signal by using the ADC module to obtain a conversion result;
determining a conversion time for the ADC module to convert the detection signal;
if the conversion time is greater than the preset conversion time, ending the fault detection and sending a fault alarm message;
if the conversion time is less than or equal to the preset conversion time, comparing the conversion result with a preset conversion result to obtain a comparison result; wherein the comparison results comprise the same or different;
if the comparison results are the same, acquiring the detection signal again after a preset detection time interval and detecting; if the comparison results are different, the fault detection is finished and a fault alarm message is sent.
Optionally, the comparing the conversion result with a preset conversion result to obtain a comparison result includes:
comparing the conversion result with a preset upper limit threshold;
if the conversion result is smaller than or equal to the preset upper limit threshold, comparing the conversion result with a preset lower limit threshold; if the conversion result is larger than the preset upper limit threshold value, marking the comparison result as different;
if the conversion result is greater than or equal to the preset lower limit threshold, marking the comparison result as the same; and if the conversion result is smaller than the preset lower limit threshold, marking the comparison result as different.
Optionally, before inputting the detection signal into the ADC module, the method further comprises:
judging whether the detection signal exceeds a preset signal range or not;
and if the detection signal exceeds the preset signal range, ending fault detection and sending a detection signal fault message.
In a second aspect, an embodiment of the present application provides an apparatus for detecting a fault of an ADC module, where the apparatus includes: the system comprises a detection signal acquisition module, a detection signal input module, a conversion result determination module, a conversion time determination module, a first fault detection module, a comparison result determination module and a second fault detection module;
the detection signal acquisition module is used for acquiring a detection signal;
the detection signal input module is used for inputting the detection signal into the ADC module;
the conversion result determining module is used for converting the detection signal by using the ADC module to obtain a conversion result;
the conversion time determining module is used for determining the conversion time of the ADC module for converting the detection signal;
the first fault detection module is used for finishing fault detection and sending a fault alarm message if the conversion time is greater than the preset conversion time;
the comparison result determining module is used for comparing the conversion result with a preset conversion result to obtain a comparison result if the conversion time is less than or equal to a preset conversion time; wherein the comparison results comprise the same or different;
the second fault detection module is used for acquiring the detection signal again after a preset detection time interval and detecting if the comparison results are the same; if the comparison results are different, the fault detection is finished and a fault alarm message is sent.
Optionally, the comparison result determining module includes:
the upper limit threshold comparison module is used for comparing the conversion result with a preset upper limit threshold;
a first comparison result determination submodule, configured to compare the conversion result with a preset lower threshold if the conversion result is less than or equal to the preset upper threshold; if the conversion result is larger than the preset upper limit threshold value, marking the comparison result as different;
a second comparison result determination submodule, configured to mark the comparison results as the same if the conversion result is greater than or equal to the preset lower threshold; and if the conversion result is smaller than the preset lower limit threshold, marking the comparison result as different.
Optionally, before the detection signal is input into the module, the apparatus further includes:
the judging module is used for judging whether the detection signal exceeds a preset signal range or not;
and the third fault detection module is used for finishing fault detection and sending a fault message of the detection signal if the detection signal exceeds the preset signal range.
In a third aspect, an embodiment of the present application provides a computer device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, when executing the computer program, implementing a method of fault detection of an ADC module according to any one of claims 1-3.
In a fourth aspect, the present application provides a computer-readable storage medium, having stored therein instructions, which when run on a terminal device, cause the terminal device to execute the method for detecting the fault of the ADC module according to any one of claims 1 to 3.
Compared with the prior art, the method has the following beneficial effects:
the method comprises the steps of acquiring a detection signal, inputting the detection signal into an ADC module, converting the detection signal by using the ADC module to obtain a conversion result, determining the conversion time of the ADC module for converting the detection signal, and if the conversion time is greater than the preset conversion time, finishing fault detection and sending a fault alarm message; if the conversion time is less than or equal to the preset conversion time, comparing the conversion result with a preset conversion result to obtain a comparison result; if the comparison results are the same, acquiring the detection signal again after a preset detection time interval and detecting; if the comparison results are different, the fault detection is finished and a fault alarm message is sent. The method and the device have the advantages that whether the ADC module has faults in the analog-to-digital conversion process can be determined by determining the conversion time and comparing the conversion time with the preset conversion time, and whether the conversion result of the ADC module has faults can be determined by comparing the conversion result with the preset conversion result.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or 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 it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a flowchart of a method for detecting a fault of an ADC module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a fault detection apparatus of an ADC module according to an embodiment of the present disclosure.
Detailed Description
As described above, in the research on the detection mechanism of the ADC module, it is found that in the prior art, in order to ensure the normal use of the ADC module, two solutions are proposed, one is to add a fault detection mechanism at the system level of the controller, and the other is to add a fault detection mechanism integrated in the ADC module itself. However, the former solution requires a technician to build a hardware fault detection circuit on the periphery of the ADC module, which increases the workload of the technician and increases the development difficulty. In the latter solution, since a fault detection mechanism needs to be integrated in the ADC module, the area and cost of the chip corresponding to the ADC module may be increased.
In order to solve the above problem, an embodiment of the present application provides a method for detecting a fault of an ADC module. The method comprises the following steps: acquiring a detection signal, inputting the detection signal into an ADC (analog to digital converter) module, converting the detection signal by using the ADC module to obtain a conversion result, determining the conversion time of the ADC module for converting the detection signal, and if the conversion time is longer than the preset conversion time, ending fault detection and sending a fault alarm message; if the conversion time is less than or equal to the preset conversion time, comparing the conversion result with a preset conversion result to obtain a comparison result; if the comparison results are the same, acquiring the detection signal again after a preset detection time interval and detecting; if the comparison results are different, the fault detection is finished and a fault alarm message is sent.
Therefore, by determining the conversion time and comparing the conversion time with the preset conversion time, whether the ADC module has a fault in the analog-to-digital conversion process can be determined, and then by comparing the conversion result with the preset conversion result, whether the conversion result of the ADC module has the fault can be determined.
In order to make those skilled in the art better understand the technical solutions of the present application, 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 a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Since the ADC module has a plurality of channels, in each of the following embodiments, the channel for operation and the channel for fault detection may be the same or different, and if the channel for operation and the channel for fault detection are different, the channel for fault detection needs to be configured with parameters, and the parameters need to be the same as the channel for operation. In addition, if the ADC module for operation is not the same as the ADC module for detection, the ADC module for detection needs to be configured with parameters, which need to be the same as the ADC module for operation. In addition, the protection scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the protection scope of the present application.
The fault detection process related to each embodiment described below is a fault detection process when the ADC module is in operation, and if the ADC module is not in operation, no fault detection is required.
Fig. 1 is a flowchart of a method for detecting a fault of an ADC module according to an embodiment of the present disclosure, and with reference to fig. 1, the method for detecting a fault of an ADC module according to an embodiment of the present disclosure may include:
s101: and acquiring a detection signal.
The detection signal is a known and stable semaphore, and the accuracy and stability in the subsequent fault detection process of the ADC module can be ensured by setting the known and stable detection signal.
S102: and inputting the detection signal into an ADC module.
As an optional implementation manner, before step S102, the method may further include:
judging whether the detection signal exceeds a preset signal range or not;
and if the detection signal exceeds the preset signal range, finishing fault detection and sending a detection signal fault message.
The stability and effectiveness of the detection signal can be ensured by detecting the detection signal, and meanwhile, the accuracy and effectiveness of the subsequent process are ensured.
S103: and converting the detection signal by using the ADC module to obtain a conversion result.
S104: determining a conversion time for the ADC module to convert the detection signal.
The conversion time refers to a time between a detection signal input time and a conversion result output time, for example, the detection signal is input into the ADC module at the 3 rd second, and the conversion time is 7 seconds when the conversion result output time is at the 10 th second, which is only exemplary and not taken as a basis for limiting the protection scope of the present application.
S105: and if the conversion time is greater than the preset conversion time, finishing the fault detection and sending a fault alarm message.
If the conversion time is longer than the preset conversion time, the fault that the overtime conversion fails is proved to occur in the ADC module, the fault detection can be ended at the moment, and the fault occurring at the moment is reported to a technician.
There are various ways of sending the fault alarm message, such as sending an alarm signal to the central fault processing unit, displaying an alarm prompt on a dashboard of the vehicle, and the like, including but not limited to the two ways of sending the fault alarm message, which are not limited in detail herein.
S106: if the conversion time is less than or equal to the preset conversion time, comparing the conversion result with a preset conversion result to obtain a comparison result; wherein the comparison results comprise the same or different.
As an implementation manner, step S106 may specifically include:
step 1: and comparing the conversion result with a preset upper limit threshold value.
Step 2: if the conversion result is smaller than or equal to the preset upper limit threshold, comparing the conversion result with a preset lower limit threshold; and if the conversion result is larger than the preset upper limit threshold value, marking the comparison result as different.
And step 3: if the conversion result is greater than or equal to the preset lower limit threshold, marking the comparison result as the same; and if the conversion result is smaller than the preset lower limit threshold, marking the comparison result as different.
In the actual circuit implementation and usage, there are inevitable errors, so it is necessary to set an acceptable conversion result range, i.e. a threshold value for fault detection, in the vicinity of a theoretical conversion result corresponding to a detection signal all the time, where the threshold value includes an upper threshold value and a lower threshold value. And when the conversion result of the detection signal after the conversion of the ADC module exceeds the threshold range, the ADC module is considered to have a fault, and then subsequent fault processing is carried out.
Besides the conversion error, the tolerance of the system to the fault in the actual application environment needs to be comprehensively considered for setting the threshold value, so that the dual requirements of accuracy and usability are met.
S107: if the comparison results are the same, acquiring the detection signal again after a preset detection time interval and detecting; if the comparison results are different, the fault detection is finished and a fault alarm message is sent.
The preset detection Time Interval may be determined according to a required period of a Fault Tolerance Time Interval (FTTI), or may be set according to an actual situation, which is not specifically limited.
The fault detection method is periodically executed, so that the ADC module can be effectively detected, once a fault occurs in the use process of the ADC module, the fault can be timely processed, the fault detection efficiency is high, and the fault detection efficiency is improved.
According to the fault detection method of the ADC module, the detection signal is input into the ADC module by acquiring the detection signal, the ADC module is used for converting the detection signal to obtain a conversion result, the conversion time of the ADC module for converting the detection signal is determined, and if the conversion time is longer than the preset conversion time, fault detection is finished and a fault alarm message is sent; if the conversion time is less than or equal to the preset conversion time, comparing the conversion result with a preset conversion result to obtain a comparison result; if the comparison results are the same, acquiring the detection signal again after a preset detection time interval and detecting; if the comparison results are different, the fault detection is finished and a fault alarm message is sent. The method and the device have the advantages that whether the ADC module has faults in the analog-to-digital conversion process can be determined by determining the conversion time and comparing the conversion time with the preset conversion time, and whether the conversion result of the ADC module has faults can be determined by comparing the conversion result with the preset conversion result.
Based on the method for detecting the fault of the ADC module provided in the foregoing embodiment, the present application further provides a fault detection apparatus of the ADC module, referring to fig. 2, fig. 2 is a schematic structural diagram of the fault detection apparatus of the ADC module provided in the present application, and with reference to fig. 2, the apparatus 200 may include:
a detection signal acquisition module 201, configured to acquire a detection signal;
a detection signal input module 202, configured to input the detection signal into the ADC module;
a conversion result determining module 203, configured to convert the detection signal by using the ADC module to obtain a conversion result;
a conversion time determination module 204, configured to determine a conversion time for the ADC module to convert the detection signal;
a first fault detection module 205, configured to end fault detection and send a fault alarm message if the conversion time is greater than a preset conversion time;
a comparison result determining module 206, configured to compare the conversion result with a preset conversion result to obtain a comparison result if the conversion time is less than or equal to a preset conversion time; wherein the comparison results comprise the same or different;
the second fault detection module 207 is configured to, if the comparison results are the same, reacquire the detection signal after a preset detection time interval and perform detection; if the comparison results are different, the fault detection is finished and a fault alarm message is sent.
As an implementation manner, the comparison result determining module 206 may include:
the upper limit threshold comparison module is used for comparing the conversion result with a preset upper limit threshold;
a first comparison result determination submodule, configured to compare the conversion result with a preset lower threshold if the conversion result is less than or equal to the preset upper threshold; if the conversion result is larger than the preset upper limit threshold value, marking the comparison result as different;
a second comparison result determination submodule, configured to mark the comparison results as the same if the conversion result is greater than or equal to the preset lower threshold; and if the conversion result is smaller than the preset lower limit threshold, marking the comparison result as different.
As an optional implementation manner, before the detection signal input module 202, the apparatus may further include:
the judging module is used for judging whether the detection signal exceeds a preset signal range or not;
and the third fault detection module is used for finishing fault detection and sending a fault message of the detection signal if the detection signal exceeds the preset signal range.
The device for detecting a fault of an ADC module provided in the embodiment of the present application has the same beneficial effects as the method for detecting a fault of an ADC module provided in the above embodiment, and therefore is not described again.
The embodiment of the application also provides corresponding equipment and a computer storage medium, which are used for realizing the scheme provided by the embodiment of the application.
The device comprises a memory and a processor, wherein the memory is used for storing instructions or codes, and the processor is used for executing the instructions or codes so as to enable the device to execute the fault detection method of the ADC module in any embodiment of the application.
The computer storage medium has code stored therein, and when the code is executed, an apparatus for executing the code implements a method for fault detection of an ADC module according to any of the embodiments of the present application.
It should be noted that, in this specification, each embodiment is described in a progressive manner, and the same and similar parts between the embodiments are referred to each other, and each embodiment focuses on differences from other embodiments. In particular, for the apparatus and device embodiments, since they are substantially similar to the method embodiments, they are described relatively simply, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described embodiments of the apparatus and device are merely illustrative, and units described as separate parts may or may not be physically separate, and parts indicated as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
In the embodiments of the present application, the names "first" and "second" (if present) in the names "first" and "second" are used merely for name identification, and do not represent the first and second in sequence.
As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that all or part of the steps in the above embodiment methods can be implemented by software plus a general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a storage medium, such as a read-only memory (ROM)/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network communication device such as a router, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.
The above description is only one specific embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A method of fault detection for an ADC module, the method comprising:
acquiring a detection signal;
inputting the detection signal into an ADC module;
converting the detection signal by using the ADC module to obtain a conversion result;
determining a conversion time for the ADC module to convert the detection signal;
if the conversion time is longer than the preset conversion time, ending the fault detection and sending a fault alarm message;
if the conversion time is less than or equal to the preset conversion time, comparing the conversion result with a preset conversion result to obtain a comparison result; wherein the comparison results comprise the same or different;
if the comparison results are the same, acquiring the detection signal again after a preset detection time interval and detecting; if the comparison results are different, the fault detection is finished and a fault alarm message is sent.
2. The method for detecting the ADC module according to claim 1, wherein the comparing the conversion result with a preset conversion result to obtain a comparison result comprises:
comparing the conversion result with a preset upper limit threshold;
if the conversion result is smaller than or equal to the preset upper limit threshold, comparing the conversion result with a preset lower limit threshold; if the conversion result is larger than the preset upper limit threshold value, marking the comparison result as different;
if the conversion result is greater than or equal to the preset lower limit threshold, marking the comparison result as the same; and if the conversion result is smaller than the preset lower limit threshold, marking the comparison result as different.
3. The method of claim 1, wherein before inputting the detection signal into the ADC module, the method further comprises:
judging whether the detection signal exceeds a preset signal range or not;
and if the detection signal exceeds the preset signal range, ending fault detection and sending a detection signal fault message.
4. An apparatus for fault detection of an ADC module, the apparatus comprising: the system comprises a detection signal acquisition module, a detection signal input module, a conversion result determination module, a conversion time determination module, a first fault detection module, a comparison result determination module and a second fault detection module;
the detection signal acquisition module is used for acquiring a detection signal;
the detection signal input module is used for inputting the detection signal into the ADC module;
the conversion result determining module is used for converting the detection signal by using the ADC module to obtain a conversion result;
the conversion time determining module is used for determining the conversion time of the ADC module for converting the detection signal;
the first fault detection module is used for finishing fault detection and sending a fault alarm message if the conversion time is greater than the preset conversion time;
the comparison result determining module is used for comparing the conversion result with a preset conversion result to obtain a comparison result if the conversion time is less than or equal to a preset conversion time; wherein the comparison results comprise the same or different;
the second fault detection module is used for acquiring the detection signal again after a preset detection time interval and detecting if the comparison results are the same; if the comparison results are different, the fault detection is finished and a fault alarm message is sent.
5. The ADC module malfunction detection apparatus of claim 4, wherein the comparison result determination module comprises:
the upper limit threshold comparison module is used for comparing the conversion result with a preset upper limit threshold;
a first comparison result determination submodule, configured to compare the conversion result with a preset lower threshold if the conversion result is less than or equal to the preset upper threshold; if the conversion result is larger than the preset upper limit threshold value, marking the comparison result as different;
a second comparison result determination submodule, configured to mark the comparison results as the same if the conversion result is greater than or equal to the preset lower threshold; and if the conversion result is smaller than the preset lower limit threshold, marking the comparison result as different.
6. The apparatus of claim 4, wherein before the detection signal is inputted to the module, the apparatus further comprises:
the judging module is used for judging whether the detection signal exceeds a preset signal range or not;
and the third fault detection module is used for finishing fault detection and sending a fault message of the detection signal if the detection signal exceeds the preset signal range.
7. A computer device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the method of ADC module fault detection as claimed in any one of claims 1-3 when executing the computer program.
8. A computer-readable storage medium having stored therein instructions which, when run on a terminal device, cause the terminal device to perform a method of fault detection of an ADC module according to any one of claims 1 to 3.
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| DE102019213021A1 (en) * | 2018-09-11 | 2020-03-12 | Siemens Aktiengesellschaft | Low voltage circuit breakers and procedures |
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