CN115208399B - Fault detection method, device and equipment of ADC (analog to digital converter) module and storage medium - Google Patents

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

Fault detection method, device, equipment and storage medium of an ADC module

technical field

The present application relates to the technical field of ADC module detection, in particular to a fault detection method, device, equipment and storage medium of an ADC module.

Background technique

With the development of electronic technology, the Analog-to-Digital Converter (Analog-to-Digital Converter, ADC), as a module that converts analog signal quantities into digital signal quantities, is used more and more widely in the field of vehicles, but the ADC of vehicles The module needs to provide the correct analog-to-digital conversion function. For example, the voltage signal needs to be converted into a digital signal in motor applications. Once the conversion is wrong, the consequences will be disastrous.

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 build an integrated fault detection mechanism in the ADC module itself. However, the former solution requires technicians to build a hardware fault detection circuit around the ADC module, which increases the workload of technicians and increases the difficulty of development. The latter solution will increase the area and cost of the chip corresponding to the ADC module because it needs to integrate a fault detection mechanism in the ADC module.

Based on this, it is an urgent problem to be solved by those skilled in the art to provide an ADC module fault detection mechanism with high efficiency, low cost and high detection efficiency.

Contents of the invention

Based on the above problems, the present application provides a fault detection method, device, equipment and storage medium for 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 solutions:

In the first aspect, the embodiment of the present application provides a fault detection method for an ADC module, the method comprising:

Obtain detection signal;

Input the detection signal into the ADC module;

Using the ADC module to convert the detection signal to obtain a conversion result;

determining the conversion time for the ADC module to convert the detection signal;

If the conversion time is greater than the preset conversion time, then end the fault detection and send 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; wherein the comparison result includes the same or different;

If the comparison result is the same, the detection signal is reacquired and detected after a preset detection time interval; if the comparison result is different, the fault detection is ended and a fault alarm message is sent.

Optionally, comparing the conversion result with a preset conversion result to obtain a comparison result includes:

comparing the conversion result with a preset upper threshold;

If the conversion result is less than or equal to the preset upper threshold, comparing the conversion result with a preset lower threshold; if the conversion result is greater than the preset upper threshold, marking the comparison result as different;

If the conversion result is greater than or equal to the preset lower threshold, the comparison result is marked as the same; if the conversion result is smaller than the preset lower threshold, the comparison result is marked as different.

Optionally, before the detection signal is input into the ADC module, the method also includes:

judging whether the detection signal exceeds a preset signal range;

If the detection signal exceeds the preset signal range, the fault detection is terminated and a detection signal fault message is sent.

In a second aspect, an embodiment of the present application provides a fault detection device for an ADC module, the device comprising: 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, Comparing the result determination module with the second fault detection module;

The detection signal acquisition module is used to obtain a detection signal;

The detection signal input module is used to input the detection signal into the ADC module;

The conversion result determination module is configured to use the ADC module to convert the detection signal to obtain a conversion result;

The conversion time determination module is used to determine the conversion time for the ADC module to convert the detection signal;

The first fault detection module is configured to end fault detection and send a fault alarm message if the conversion time is greater than a preset conversion time;

The comparison result determining module is used to compare the conversion result with the preset conversion result to obtain a comparison result if the conversion time is less than or equal to the preset conversion time; wherein the comparison result includes the same or different;

The second fault detection module is used to reacquire the detection signal after a preset detection time interval and perform detection if the comparison result is the same; if the comparison result is different, end the fault detection and send a fault alarm information.

Optionally, the comparison result determination module includes:

an upper threshold comparison module, configured to compare the conversion result with a preset upper threshold;

The first comparison result determination submodule is used to compare the conversion result with a preset lower limit threshold if the conversion result is less than or equal to the preset upper limit threshold; if the conversion result is greater than the preset upper limit threshold threshold, the comparison result is marked as different;

The second comparison result determination submodule is used to mark the comparison result as the same if the conversion result is greater than or equal to the preset lower limit threshold; if the conversion result is smaller than the preset lower limit threshold, mark the comparison result marked as different.

Optionally, before the detection signal is input into the module, the device further includes:

A judging module, configured to judge whether the detection signal exceeds a preset signal range;

The third fault detection module is configured to end the fault detection and send a detection signal fault message if the detection signal exceeds the preset signal range.

In a third aspect, the embodiment of the present application provides a computer device, including: a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor executes the computer program During the program, the fault detection method of the ADC module according to any one of claims 1-3 is realized.

In a fourth aspect, the embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores instructions, and when the instructions are run on a terminal device, the terminal device executes the The fault detection method of the ADC module described in any one of 1-3.

Compared with the prior art, the present application has the following beneficial effects:

The present application obtains the detection signal, inputs the detection signal into the ADC module, uses the ADC module to convert the detection signal, obtains a conversion result, and determines the conversion time for the ADC module to convert the detection signal, If the conversion time is greater than the preset conversion time, the fault detection is ended and a fault alarm message is sent; if the conversion time is less than or equal to the preset conversion time, the conversion result is compared with the preset conversion result to obtain a comparison Result; wherein the comparison result includes the same or different, if the comparison result is the same, then reacquire the detection signal after the preset detection time interval and detect; if the comparison result is different, then end the fault detection and send Fault alarm message. Among them, by determining the conversion time and comparing the conversion time with the preset conversion time, it can be determined whether there is a fault in the ADC module during the analog-to-digital conversion process, and then by comparing the conversion result with the preset conversion result, it can be determined Whether there is a fault in the conversion result of the ADC module is different from the need for an integrated detection mechanism built into the ADC module in the prior art. It only needs to input the detection signal into the ADC module to realize the fault detection of the ADC module. The cost is low and the fault detection is efficient. At the same time, detection can be performed without building a hardware fault detection circuit in the periphery, which improves the efficiency of fault detection.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a flowchart of a fault detection method for an ADC module provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a fault detection device for an ADC module provided by an embodiment of the present application.

Detailed ways

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 have been proposed, one is to add a fault detection mechanism at the system level of the controller, and The other is to have an integrated fault detection mechanism built into the ADC module itself. However, the former solution requires technicians to build a hardware fault detection circuit around the ADC module, which increases the workload of technicians and increases the difficulty of development. The latter solution will increase the area and cost of the chip corresponding to the ADC module because it needs to integrate a fault detection mechanism in the ADC module.

In order to solve the above problems, an embodiment of the present application provides a fault detection method for an ADC module. The method includes: acquiring a detection signal, inputting the detection signal into an ADC module, using the ADC module to convert the detection signal to obtain a conversion result, and determining a conversion time for the ADC module to convert the detection signal , if the conversion time is greater than the preset conversion time, then end the fault detection and send a fault alarm message; if the conversion time is less than or equal to the preset conversion time, compare the conversion result with the preset conversion result to obtain Comparison results; wherein the comparison results include the same or different, if the comparison results are the same, then re-acquire the detection signal after a preset detection time interval and perform detection; if the comparison results are different, then end the fault detection and Send fault alarm message.

In this way, by determining the conversion time and comparing the conversion time with the preset conversion time, it can be determined whether there is a fault in the ADC module during the analog-to-digital conversion process, and then by comparing the conversion result with the preset conversion result, it can be determined Whether there is a fault in the conversion result of the ADC module is different from the need for an integrated detection mechanism built into the ADC module in the prior art. It only needs to input the detection signal into the ADC module to realize the fault detection of the ADC module. The cost is low and the fault detection is efficient. At the same time, detection can be performed without building a hardware fault detection circuit in the periphery, which improves the efficiency of fault detection.

In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Wherein, since the ADC module has multiple channels, in the following embodiments, the channel used for work and the channel used for fault detection can be the same or different, if the channel used for work and the channel used for fault detection different, it is necessary to configure the parameters of the channel used for fault detection, and the parameters need to be the same as the channel used for work. In addition, if the ADC module used for work is different from the ADC module used for detection, parameters need to be configured for the ADC module used for detection, and the parameters need to be the same as those of the ADC module used for work. 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 disclosed in the present application shall be covered by the protection scope of the present application.

Wherein, the fault detection process involved in the following embodiments is the fault detection process when the ADC module is working, and if the ADC module is not in the working state, no fault detection is required.

Fig. 1 is a flow chart of a fault detection method for an ADC module provided in an embodiment of the present application. In combination with what is shown in Fig. 1, the fault detection method for an ADC module provided in an embodiment of the present application may include:

S101: Obtain a detection signal.

Wherein, the detection signal is a known and stable semaphore, and by setting the known and stable detection signal, the accuracy and stability in the subsequent fault detection process of the ADC module can be ensured.

S102: Input the detection signal into the 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;

If the detection signal exceeds the preset signal range, the fault detection is terminated and a detection signal fault message is sent.

Wherein, by detecting the detection signal, the stability and validity of the detection signal can be guaranteed, and the accuracy and validity of the subsequent process can be ensured at the same time.

S103: Use the ADC module to convert the detection signal to obtain a conversion result.

S104: Determine a conversion time for the ADC module to convert the detection signal.

Wherein, the conversion time refers to the time between the input time of the detection signal and the output time of the conversion result. For example, the detection signal is input into the ADC module at the 3rd second, and the output time of the conversion result is at the 10th second, and the conversion time is 7 seconds. Second, the example here is only for illustration, and is not used as a basis for limiting the scope of protection of this application.

S105: If the conversion time is greater than the preset conversion time, end the fault detection and send a fault alarm message.

Wherein, if the conversion time is greater than the preset conversion time, it proves that the ADC module has a fault of overtime conversion failure, and the fault detection can be ended at this time, and the fault occurring at this time can be reported to the technician.

Among them, there are many ways to send fault alarm messages, such as sending alarm signals to the central fault processing unit, displaying alarm prompts on the vehicle dashboard, etc., including but not limited to the two ways of sending fault alarm messages, which are not described here. Specific limits.

S106: If the conversion time is less than or equal to a preset conversion time, compare the conversion result with a preset conversion result to obtain a comparison result; wherein the comparison result includes same or different.

As a realizable implementation manner, step S106 may specifically include:

Step 1: Compare the conversion result with a preset upper threshold.

Step 2: If the conversion result is less than or equal to the preset upper threshold, compare the conversion result with a preset lower threshold; if the conversion result is greater than the preset upper threshold, mark the comparison result for different.

Step 3: If the conversion result is greater than or equal to the preset lower threshold, mark the comparison result as the same; if the conversion result is smaller than the preset lower threshold, mark the comparison result as different.

Among them, in the actual circuit implementation and use process, there will inevitably be errors, so it is necessary to set an acceptable conversion result range near the theoretical conversion result corresponding to the detection signal, that is, the threshold for fault detection, the threshold Contains upper and lower thresholds. When the conversion result of the detection signal converted by the ADC module exceeds the threshold range, it is considered that the ADC module is faulty, and subsequent fault handling is performed.

Among them, in addition to considering the conversion error, the setting of the threshold also needs to comprehensively consider the fault tolerance of the system in the actual application environment, so as to meet the dual requirements of accuracy and usability.

S107: If the comparison result is the same, re-acquire the detection signal after a preset detection time interval and perform detection; if the comparison result is different, end the fault detection and send a fault alarm message.

Wherein, the preset detection time interval may be determined according to a required period of a fault tolerance time interval (FTTI, Fault Tolerant Time Interval), or may be set according to an actual situation, so it is not specifically limited.

Among them, the effective detection of the ADC module can be realized by periodically executing the above fault detection method. During the use of the ADC module, once a fault occurs, it can be dealt with in time, which realizes the high efficiency of fault detection and improves the fault detection. s efficiency.

The fault detection method of the ADC module provided in the embodiment of the present application obtains the detection signal, inputs the detection signal into the ADC module, uses the ADC module to convert the detection signal, obtains the conversion result, and determines the ADC module The conversion time for converting the detection signal, if the conversion time is greater than the preset conversion time, then end the fault detection and send a fault alarm message; if the conversion time is less than or equal to the preset conversion time, then the conversion The result is compared with the preset conversion result to obtain a comparison result; wherein the comparison result includes the same or different, if the comparison result is the same, then re-acquire the detection signal after a preset detection time interval and perform detection; if the If the comparison result is different, then end the fault detection and send a fault alarm message. Among them, by determining the conversion time and comparing the conversion time with the preset conversion time, it can be determined whether there is a fault in the ADC module during the analog-to-digital conversion process, and then by comparing the conversion result with the preset conversion result, it can be determined Whether there is a fault in the conversion result of the ADC module is different from the need for an integrated detection mechanism built into the ADC module in the prior art. It only needs to input the detection signal into the ADC module to realize the fault detection of the ADC module. The cost is low and the fault detection is efficient. At the same time, detection can be performed without building a hardware fault detection circuit in the periphery, which improves the efficiency of fault detection.

Based on the ADC module fault detection method provided in the above-mentioned embodiments, the present application also provides a fault detection device for the ADC module, see FIG. 2, which is a schematic structural diagram of a fault detection device for the ADC module provided in the embodiment of the present application , as shown in FIG. 2, the device 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 determination module 203, configured to use the ADC module to convert the detection signal 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;

The first fault detection module 205 is configured to end the fault detection and send a fault alarm message if the conversion time is greater than the 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 result includes the same or different;

The second fault detection module 207 is used to reacquire the detection signal after a preset detection time interval and perform detection if the comparison result is the same; if the comparison result is different, then end the fault detection and send a fault alarm message .

As a realizable implementation, the comparison result determining module 206 may include:

an upper threshold comparison module, configured to compare the conversion result with a preset upper threshold;

The first comparison result determination submodule is used to compare the conversion result with a preset lower limit threshold if the conversion result is less than or equal to the preset upper limit threshold; if the conversion result is greater than the preset upper limit threshold threshold, the comparison result is marked as different;

The second comparison result determination submodule is used to mark the comparison result as the same if the conversion result is greater than or equal to the preset lower limit threshold; if the conversion result is smaller than the preset lower limit threshold, mark the comparison result marked as different.

As an optional implementation manner, before the detection signal input module 202, the device may further include:

A judging module, configured to judge whether the detection signal exceeds a preset signal range;

The third fault detection module is configured to end the fault detection and send a detection signal fault message 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 effect as the method for detecting a fault of an ADC module provided in the above embodiment, so details are not repeated here.

The embodiment of the present application also provides a corresponding device and a computer storage medium, which are used to implement the solution provided in the embodiment of the present application.

Wherein, the device includes a memory and a processor, the memory is used to store instructions or codes, and the processor is used to execute the instructions or codes, so that the device executes the ADC module described in any embodiment of the present application fault detection method.

Codes are stored in the computer storage medium, and when the codes are executed, a device running the codes implements the ADC module fault detection method described in any embodiment of the present application.

It should be noted that each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. place. In particular, as for the device and device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for relevant parts, please refer to part of the description of the method embodiments. The device and device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components indicated as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without creative effort.

The "first" and "second" in the names of "first" and "second" (if they exist) mentioned in the embodiment of this application are only used for name identification, and do not represent the first, second.

From the above description of the implementation manners, it can be seen that those skilled in the art can clearly understand that all or part of the steps in the methods of the above embodiments can be implemented by means of software plus a general hardware platform. Based on this understanding, the technical solution of this application can be embodied in the form of software products, and the computer software products can be stored in storage media, such as read-only memory (English: read-only memory, ROM)/RAM, disk, CDs, etc., include several instructions to make a computer device (which may be a personal computer, a server, or a network communication device such as a router) execute the methods described in various embodiments or some parts of the embodiments of this application.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or Replacement should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (8)

1. a kind of fault detection method of ADC module, it is characterized in that, described method comprises: Obtain detection signal; Input the detection signal into the ADC module; Using the ADC module to convert the detection signal to obtain a conversion result; determining the conversion time for the ADC module to convert the detection signal; If the conversion time is greater than the preset conversion time, then end the fault detection and send 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; wherein the comparison result includes the same or different; If the comparison result is the same, the detection signal is reacquired and detected after a preset detection time interval; if the comparison result is different, the fault detection is ended and a fault alarm message is sent. 2. The fault detection method of the ADC module according to claim 1, wherein the described conversion result is compared with a preset conversion result to obtain a comparison result, comprising: comparing the conversion result with a preset upper threshold; If the conversion result is less than or equal to the preset upper threshold, comparing the conversion result with a preset lower threshold; if the conversion result is greater than the preset upper threshold, marking the comparison result as different; If the conversion result is greater than or equal to the preset lower threshold, the comparison result is marked as the same; if the conversion result is smaller than the preset lower threshold, the comparison result is marked as different. 3. the fault detection method of ADC module according to claim 1, is characterized in that, before described detection signal is input into ADC module, described method also comprises: judging whether the detection signal exceeds a preset signal range; If the detection signal exceeds the preset signal range, the fault detection is terminated and a detection signal fault message is sent. 4. a kind of fault detection device of ADC module, it is characterized in that, described device comprises: detection signal acquisition module, detection signal input module, conversion result determination module, conversion time determination module, the first fault detection module, comparison result determination module and a second fault detection module; The detection signal acquisition module is used to obtain a detection signal; The detection signal input module is used to input the detection signal into the ADC module; The conversion result determination module is configured to use the ADC module to convert the detection signal to obtain a conversion result; The conversion time determination module is used to determine the conversion time for the ADC module to convert the detection signal; The first fault detection module is configured to end fault detection and send a fault alarm message if the conversion time is greater than a preset conversion time; The comparison result determining module is used to compare the conversion result with the preset conversion result to obtain a comparison result if the conversion time is less than or equal to the preset conversion time; wherein the comparison result includes the same or different; The second fault detection module is used to reacquire the detection signal after a preset detection time interval and perform detection if the comparison result is the same; if the comparison result is different, end the fault detection and send a fault alarm information. 5. the fault detection device of ADC module according to claim 4, is characterized in that, described comparison result determination module comprises: an upper threshold comparison module, configured to compare the conversion result with a preset upper threshold; The first comparison result determination submodule is used to compare the conversion result with a preset lower limit threshold if the conversion result is less than or equal to the preset upper limit threshold; if the conversion result is greater than the preset upper limit threshold threshold, the comparison result is marked as different; The second comparison result determination submodule is used to mark the comparison result as the same if the conversion result is greater than or equal to the preset lower limit threshold; if the conversion result is smaller than the preset lower limit threshold, mark the comparison result marked as different. 6. the fault detection device of ADC module according to claim 4, is characterized in that, before described detection signal input module, described device also comprises: A judging module, configured to judge whether the detection signal exceeds a preset signal range; The third fault detection module is configured to end the fault detection and send a detection signal fault message if the detection signal exceeds the preset signal range. 7. A computer device, characterized in that it comprises: a memory, a processor, and a computer program stored on the memory and operable on the processor, when the processor executes the computer program, the The fault detection method of the ADC module according to any one of claims 1-3. 8. A computer-readable storage medium, characterized in that instructions are stored in the computer-readable storage medium, and when the instructions are run on a terminal device, the terminal device is made to execute any of claims 1-3. A fault detection method for an ADC module.

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