CN114689976A - Precision checking method, device, equipment and storage medium for analog quantity card - Google Patents
Precision checking method, device, equipment and storage medium for analog quantity card Download PDFInfo
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- CN114689976A CN114689976A CN202210344973.1A CN202210344973A CN114689976A CN 114689976 A CN114689976 A CN 114689976A CN 202210344973 A CN202210344973 A CN 202210344973A CN 114689976 A CN114689976 A CN 114689976A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The application provides a precision checking method, a device, equipment and a storage medium for analog quantity cards, wherein the method comprises the following steps: performing precision learning on a first test signal output by a standard signal source, and calibrating the precision of a second test signal output by a test signal source; inputting a second test signal subjected to precision calibration to the analog quantity clamping piece to be tested to obtain a second output signal output by the analog quantity clamping piece to be tested; and determining whether the precision of the analog quantity card to be tested meets the requirement or not based on the second output signal. The invention realizes the automatic test of the precision of the analog quantity card to be tested, and simultaneously improves the precision test accuracy of the analog quantity card to be tested.
Description
Technical Field
The application relates to the field of testing, in particular to a method, a device, equipment and a storage medium for verifying the precision of an analog quantity card.
Background
At present, a DCS (distributed control system) is widely applied to domestic large-scale electric power units, plays the roles of centralized management and decentralized control, and enables operators of the units to monitor and control the units in real time. In the arrangement of the whole DCS control system, a large number of analog quantity cards are used. Along with the increase of the service time of the control system, the problems of aging, precision reduction and the like of the clamping piece start to appear gradually, and in order to ensure the safe and stable operation of the unit and reduce the occurrence probability of the online maintenance condition of the analog clamping piece, the precision of the analog clamping piece needs to be tested.
Under the condition that the precision of the analog quantity clamping piece is not enough, the prior art usually directly replaces or returns the analog quantity clamping piece to the factory for maintenance, and the replacement or maintenance period is long and the cost is high.
Disclosure of Invention
In view of the above, it is necessary to provide a method, an apparatus, a device and a storage medium for verifying the accuracy of an analog quantity cartridge.
In a first aspect, an embodiment of the present invention provides a method for verifying accuracy of an analog quantity card, where the method includes:
performing precision learning on a first test signal output by a standard signal source, and calibrating the precision of a second test signal output by a test signal source;
inputting a second test signal subjected to precision calibration to the analog quantity clamping piece to be tested to obtain a second output signal output by the analog quantity clamping piece to be tested;
and determining whether the precision of the analog quantity card to be tested meets the requirement or not based on the second output signal.
In an embodiment, the performing precision learning on the first test signal output by the standard signal source and calibrating the precision of the second test signal output by the test signal source includes:
inputting the first test signal into the analog quantity card to be tested, and outputting to obtain a first output signal;
determining a corresponding deviation value based on the first output signal and a standard output signal corresponding to the first test signal;
and calibrating the precision of the second test signal output by the test signal source based on the deviation value.
In an embodiment, the determining whether the accuracy of the analog card to be tested meets the requirement based on the second output signal includes:
determining whether the second output signal is within a preset range; the preset range is determined based on a standard output signal corresponding to the second output signal and the precision requirement of the analog quantity clamping piece to be detected;
if so, determining that the precision of the analog quantity clamping piece to be detected meets the requirement; if not, determining that the precision of the analog quantity card to be tested does not meet the requirement.
In an embodiment, the method further comprises:
and under the condition that the precision of the analog quantity clamping piece to be measured does not meet the requirement, calibrating the precision of the analog quantity clamping piece to be measured.
In a second aspect, an embodiment of the present invention provides an apparatus for verifying accuracy of an analog quantity card, where the apparatus includes:
the first calibration module is used for performing precision learning on a first test signal output by the standard signal source and calibrating the precision of a second test signal output by the test signal source;
the test module is used for inputting a second test signal subjected to precision calibration to the analog quantity clamping piece to be tested to obtain a second output signal output by the analog quantity clamping piece to be tested;
and the determining module is used for determining whether the precision of the analog quantity card to be tested meets the requirement or not based on the second output signal.
In one embodiment, the first calibration module comprises:
the input module is used for inputting the first test signal to the analog quantity card to be tested and outputting the first test signal to obtain a first output signal;
and the calculating module is used for determining a corresponding deviation value based on the first output signal and a standard output signal corresponding to the first test signal.
And the first calibration submodule is used for calibrating the precision of the second test signal output by the test signal source based on the deviation value.
In an embodiment, the determining module is specifically configured to:
determining whether the second output signal is within a preset range; the preset range is determined based on a standard output signal corresponding to the second output signal and the precision requirement of the analog quantity card to be detected;
if so, determining that the precision of the analog quantity clamping piece to be detected meets the requirement; if not, determining that the precision of the analog quantity card to be tested does not meet the requirement.
In one embodiment, the apparatus further comprises:
and the second calibration module is used for calibrating the precision of the analog quantity clamping piece to be tested under the condition that the precision of the analog quantity clamping piece to be tested does not meet the requirement.
In a third aspect, an embodiment of the present invention provides a computer device, including a memory and a processor, where the memory stores a computer program, and the processor executes the steps in the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and the processor implements the steps of the first aspect when executing the computer program.
Compared with the prior art, the method, the device, the computer equipment and the storage medium can be used for performing precision learning on the first test signal output by the standard signal source and calibrating the precision of the second test signal output by the test signal source; inputting a second test signal subjected to precision calibration to the analog quantity clamping piece to be tested to obtain a second output signal output by the analog quantity clamping piece to be tested; and determining whether the precision of the analog quantity card to be tested meets the requirement or not based on the second output signal. The invention can ensure that the test signal source in the system has the output function and the accuracy of the standard signal source, and the calibrated test signal source can carry out the calibration work of various types of analog quantity clamping pieces, thereby realizing the precise automatic test of the analog quantity clamping pieces to be tested and simultaneously improving the accuracy of the precision test of the analog quantity clamping pieces to be tested.
Drawings
FIG. 1 is a schematic diagram of an application environment of a precision verification method for an analog quantity card in an embodiment;
FIG. 2 is a schematic flow chart of a method for verifying the accuracy of an analog quantity card in one embodiment;
FIG. 3 is a flow diagram illustrating a method for precision learning and calibration according to an embodiment;
FIG. 4 is a schematic diagram of a module connection of the apparatus for verifying the accuracy of an analog quantity card in one embodiment;
FIG. 5 is a block diagram of a computer device according to an embodiment.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only examples or embodiments of the invention, from which it is possible for a person skilled in the art, without inventive effort, to apply the invention also in other similar contexts. Unless otherwise apparent from the context, or stated otherwise, like reference numbers in the figures refer to the same structure or operation.
As used in this disclosure and in the claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are inclusive in the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
Although the present invention makes various references to certain modules in a system according to embodiments of the present invention, any number of different modules may be used and run on a computing device and/or processor. The modules are merely illustrative and different aspects of the systems and methods may use different modules.
It will be understood that when an element or module is referred to as being "connected," "coupled" to other elements, modules or blocks, it can be directly connected or coupled or in communication with the other elements, modules or blocks or intervening elements, modules or blocks may be present unless the context clearly dictates otherwise. As used herein, the term "and/or" can include any and all combinations of one or more of the associated listed items.
The precision verification method of the analog quantity card piece can be applied to the application environment shown in figure 1. Wherein the terminal 102 communicates with the server 104 via a network. The terminal 102 learns the precision of a first test signal output by a standard signal source and calibrates the precision of a second test signal output by a test signal source; inputting a second test signal subjected to precision calibration to the analog quantity clamping piece to be tested to obtain a second output signal output by the analog quantity clamping piece to be tested; and determining whether the precision of the analog quantity card to be tested meets the requirement or not based on the second output signal. The terminal 102 sends the final test result to the server 104. The terminal 102 may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices. The server 104 may be implemented as a stand-alone server or a server cluster comprised of multiple servers.
In an embodiment, as shown in fig. 2, there is provided a method for verifying the accuracy of an analog quantity card, which is described by taking the application environment in fig. 1 as an example, and includes the following steps:
s201: and performing precision learning on a first test signal output by the standard signal source, and calibrating the precision of a second test signal output by the test signal source.
In order to ensure that the precision of the second test signal output by the test signal source meets the standard precision requirement, in this embodiment, the precision requirement is met by performing precision learning on the first test signal output by the standard signal source and calibrating the precision of the second test signal output by the test signal source.
S202: and inputting the second test signal subjected to precision calibration to the analog quantity clamping piece to be tested to obtain a second output signal output by the analog quantity clamping piece to be tested.
The specific method comprises the following steps: and outputting a second test signal by using a preset program according to the type and the range of the analog quantity card to be tested by using the test signal source subjected to precision calibration according to twenty-five percent range, fifty percent range, seventy-five percent range and hundred percent range in sequence, wherein the second test signal is accessed to the input end of the analog quantity card to be tested, and the second output signal of the analog quantity card to be tested is automatically recorded.
The different second test signals have corresponding standard output results, such as: 0-20mA corresponds to 0-64000 standard output result; -10.5 to +69.5mV for a standard output of 0-64000; 0-10V corresponds to 1600-64000 standard output results; 0-320ohm corresponds to 0-64000 standard output results.
It should be noted that the test signal source is determined based on the type of the analog card to be tested. The type, the measuring range and the like of the output signal of the test signal source need to correspond to the analog quantity card to be tested. For example: and if the analog quantity card to be tested is a 0-20mA input signal type card, the test signal source is a 0-20mA output signal type card.
It can be understood that, in order to match the analog card to be tested, there are a plurality of test signal sources. The selection of the test signal source is realized by switching a channel connected between the analog quantity card to be tested and the test signal source.
During testing, the type of the analog quantity card to be tested is selected, the preset program automatically matches the corresponding test signal source, a channel connected between the analog quantity card to be tested and the test signal source is automatically switched, the test process is automatically completed, and a test report is generated without manual switching.
S203: and determining whether the precision of the analog quantity card to be tested meets the requirement or not based on the second output signal.
The method specifically comprises the following steps: determining whether the second output signal is within a preset range; if so, determining that the precision of the analog quantity clamping piece to be detected meets the requirement; if not, determining that the precision of the analog quantity card to be measured does not meet the requirement.
The preset range is determined based on the standard output signal corresponding to the second output signal and the precision requirement of the analog quantity card to be detected. For example, the first test signal output by the test signal source is 4mA, the standard output result of the analog quantity card to be tested corresponding to the first test signal is 12800, and the preset range is [ 12781,12819 ]. It should be noted that the preset range can be adjusted according to the corresponding standard output signal and the precision requirement of the analog quantity card to be measured, and the higher the precision requirement is, the smaller the preset range is.
In this embodiment, through carrying out the precision study to the first test signal of mark signal source output to the precision of the second test signal of testing signal source output is calibrated, will pass through the second test signal input of precision calibration to the analog card piece that awaits measuring, obtain the second output signal of analog card piece output that awaits measuring, based on the second output signal, confirm whether the precision of analog card piece that awaits measuring meets the requirements, realized the automatic test of analog card piece precision that awaits measuring, simultaneously also improved the accuracy of analog card piece precision test that awaits measuring.
In one embodiment, as shown in fig. 3, the performing precision learning on the first test signal output by the standard signal source and calibrating the precision of the second test signal output by the test signal source includes the following steps:
s301: inputting the first test signal into the analog quantity card to be tested, and outputting to obtain a first output signal;
s302: determining a corresponding deviation value based on the first output signal and a standard output signal corresponding to the first test signal;
s303: and calibrating the precision of the second test signal output by the test signal source based on the deviation value.
The specific method comprises the following steps: adding a first test signal to an input end of the analog quantity card to be tested, recording a first output signal of the analog quantity card to be tested, calculating a corresponding standard output signal and a deviation value by using a preset program, recording, assigning a value to a second test signal of a test signal source by using the preset program, and adding the previously recorded deviation value serving as a bias into an output logic of the test signal source through the preset program, thereby realizing the precision calibration of the second test signal.
The standard output signal is output to the input/output card according to a standard signal source, and the standard signal source can be a high-precision signal source FLUKE or the like.
In another embodiment, the first test signal is sequentially output according to each range segment, and then the accuracy learning is performed on the first test signal output each time through the above steps S301 to S303, and the accuracy calibration is performed on the second test signal.
The specific calibration method comprises the following steps: taking the verification of the 0-20mA analog quantity card to be tested as an example, the analog quantity card to be tested is connected to a test signal source, a first test signal sequentially outputs 4/8/12/16/20mA electric values, 4mA corresponding to a standard output signal is 12800, the first output signal output by the analog quantity card to be tested is 12795, and then a first deviation value of the first output signal and the standard output signal is-5. And assigning 12800 to a second test signal of the test signal source by using a preset program, and adding a first deviation value-5 recorded before as a bias into the output logic of the test signal source through the preset program, so that the second test signal has the same precision as the first test signal output by the standard signal source, thereby realizing the precision calibration of the second test signal.
In one embodiment, the method further comprises the steps of:
s104: and under the condition that the precision of the analog quantity clamping piece to be measured does not meet the requirement, calibrating the precision of the analog quantity clamping piece to be measured.
And under the condition that the precision of the analog quantity clamping piece to be measured does not meet the requirement, calibrating the precision of the analog quantity clamping piece to be measured, wherein the calibration process is the prior art, and therefore the repeated description is omitted.
It should be understood that, although the steps in the above-described flowcharts are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the above-mentioned flowcharts may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or the stages is not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a part of the steps or the stages in other steps.
In an embodiment, as shown in fig. 4, the present invention provides an apparatus for verifying the accuracy of an analog card, the apparatus comprising:
the first calibration module 401 is configured to perform precision learning on a first test signal output by a standard signal source, and calibrate the precision of a second test signal output by a test signal source;
the test module 402 is configured to input a second test signal subjected to precision calibration to the analog card to be tested, so as to obtain a second output signal output by the analog card to be tested;
a determining module 403, configured to determine whether the precision of the analog quantity card to be tested meets the requirement based on the second output signal.
In one embodiment, the first calibration module comprises:
the input module is used for inputting the first test signal to the analog quantity card to be tested and outputting the first test signal to obtain a first output signal;
and the calculating module is used for determining a corresponding deviation value based on the first output signal and a standard output signal corresponding to the first test signal.
And the first calibration submodule is used for calibrating the precision of the second test signal output by the test signal source based on the deviation value.
In an embodiment, the determining module is specifically configured to:
determining whether the second output signal is within a preset range; the preset range is determined based on a standard output signal corresponding to the second output signal and the precision requirement of the analog quantity clamping piece to be detected;
if so, determining that the precision of the analog quantity clamping piece to be detected meets the requirement; if not, determining that the precision of the analog quantity card to be tested does not meet the requirement.
In one embodiment, the apparatus further comprises:
and the second calibration module is used for calibrating the precision of the analog quantity clamping piece to be tested under the condition that the precision of the analog quantity clamping piece to be tested does not meet the requirement.
The method comprises the steps of performing precision learning on a first test signal output by a standard signal source, and calibrating the precision of a second test signal output by a test signal source; inputting the second test signal subjected to precision calibration to the analog quantity clamping piece to be tested to obtain a second output signal output by the analog quantity clamping piece to be tested; and determining whether the precision of the analog quantity card to be tested meets the requirement or not based on the second output signal. The invention can ensure that the test signal source in the system has the output function and the accuracy of the standard signal source, and the calibrated test signal source can carry out the calibration work of various types of analog quantity clamping pieces, thereby realizing the precise automatic test of the analog quantity clamping pieces to be tested and simultaneously improving the accuracy of the precision test of the analog quantity clamping pieces to be tested.
For the specific limitation of the precision checking device of the analog quantity card, reference may be made to the above limitation on the program upgrading method, which is not described herein again. All or part of each module in the precision checking device of the analog quantity card piece can be realized by software, hardware and the combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 5. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing motion detection data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to realize the steps of any one of the above embodiments of the method for verifying the precision of the analog quantity card.
Those skilled in the art will appreciate that the architecture shown in fig. 5 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of any one of the above embodiments of the method for verifying the accuracy of an analog card.
In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, where the computer program, when executed by a processor, implements the steps in any of the above embodiments of the method for precision verification of analog quantity cards.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A precision checking method of an analog quantity card is characterized by comprising the following steps:
performing precision learning on a first test signal output by a standard signal source, and calibrating the precision of a second test signal output by a test signal source;
inputting a second test signal subjected to precision calibration to the analog quantity clamping piece to be tested to obtain a second output signal output by the analog quantity clamping piece to be tested;
and determining whether the precision of the analog quantity card to be tested meets the requirement or not based on the second output signal.
2. The method of claim 1, wherein the learning the accuracy of the first test signal output by the standard signal source and the calibrating the accuracy of the second test signal output by the test signal source comprises:
inputting the first test signal into the analog quantity card to be tested, and outputting to obtain a first output signal;
determining a corresponding deviation value based on the first output signal and a standard output signal corresponding to the first test signal;
and calibrating the precision of the second test signal output by the test signal source based on the deviation value.
3. The method of claim 1, wherein determining whether the accuracy of the analog card under test meets requirements based on the second output signal comprises:
determining whether the second output signal is within a preset range; the preset range is determined based on a standard output signal corresponding to the second output signal and the precision requirement of the analog quantity card to be detected;
if so, determining that the precision of the analog quantity clamping piece to be detected meets the requirement; if not, determining that the precision of the analog quantity card to be tested does not meet the requirement.
4. The method according to any one of claims 1-3, further comprising:
and under the condition that the precision of the analog quantity clamping piece to be measured does not meet the requirement, calibrating the precision of the analog quantity clamping piece to be measured.
5. An accuracy verification device of an analog quantity card member is characterized by comprising:
the first calibration module is used for performing precision learning on a first test signal output by the standard signal source and calibrating the precision of a second test signal output by the test signal source;
the test module is used for inputting a second test signal subjected to precision calibration to the analog quantity clamping piece to be tested to obtain a second output signal output by the analog quantity clamping piece to be tested;
and the determining module is used for determining whether the precision of the analog quantity card to be tested meets the requirement or not based on the second output signal.
6. The apparatus of claim 5, wherein the first calibration module comprises:
the input module is used for inputting the first test signal to the analog quantity card to be tested and outputting the first test signal to obtain a first output signal;
the calculating module is used for determining a corresponding deviation value based on the first output signal and a standard output signal corresponding to the first test signal;
and the first calibration submodule is used for calibrating the precision of the second test signal output by the test signal source based on the deviation value.
7. The apparatus of claim 5, wherein the determining module is specifically configured to:
determining whether the second output signal is within a preset range; the preset range is determined based on a standard output signal corresponding to the second output signal and the precision requirement of the analog quantity card to be detected;
if so, determining that the precision of the analog quantity clamping piece to be detected meets the requirement; if not, determining that the precision of the analog quantity card to be tested does not meet the requirement.
8. The apparatus of any of claims 5-7, further comprising:
and the second calibration module is used for calibrating the precision of the analog quantity clamping piece to be tested under the condition that the precision of the analog quantity clamping piece to be tested does not meet the requirement.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 4.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118190054A (en) * | 2024-05-14 | 2024-06-14 | 天津宜科自动化股份有限公司 | Analog module calibration device and method |
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| CN118190054A (en) * | 2024-05-14 | 2024-06-14 | 天津宜科自动化股份有限公司 | Analog module calibration device and method |
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