CN111337739A - Voltage detection device and method for auxiliary power supply - Google Patents
Voltage detection device and method for auxiliary power supply Download PDFInfo
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- CN111337739A CN111337739A CN202010303376.5A CN202010303376A CN111337739A CN 111337739 A CN111337739 A CN 111337739A CN 202010303376 A CN202010303376 A CN 202010303376A CN 111337739 A CN111337739 A CN 111337739A
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- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
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Abstract
The invention discloses a voltage detection device and a method of an auxiliary power supply, belonging to the technical field of voltage detection, wherein the method comprises the following steps: receiving a test file of a detection terminal, sending a target voltage value to an auxiliary power supply, and acquiring actual voltage values of two ends of the auxiliary power supply detected by the detection terminal; then calculating the difference value of the actual voltage value relative to the target voltage value; and finally, judging whether the difference value falls into a preset tolerance threshold value, and if the difference value falls into the preset tolerance threshold value, judging that the voltages at the two ends of the auxiliary power supply are qualified. The method and the device have the advantages that the actual voltage value and the target voltage value generated by the auxiliary power supply are automatically obtained, the difference value between the actual voltage value and the target voltage value is calculated, and then whether the auxiliary power supply is qualified or not is judged, the detection is rapid and efficient, the efficiency of detecting the auxiliary power supply is further improved, and the method and the device have great significance.
Description
Technical Field
The invention belongs to the technical field of voltage detection, and particularly relates to a voltage detection device and method of an auxiliary power supply.
Background
The existing detection of the electric appliance mainly detects the voltage of the electric appliance, and especially the voltage detection of power supply equipment is also needed.
However, whether the voltage of the existing detection power supply device is qualified is generally detected by using a semi-automatic detection power supply, the voltage of the power supply device is manually adjusted and detected by using a universal meter, the voltage is manually adjusted to the next voltage value after each voltage value is detected until all of a plurality of voltage values are detected, a tester is required to compare the voltage values before and after detection, and the detection power supply voltage efficiency is low.
Disclosure of Invention
The invention provides a voltage detection device and a voltage detection method for an auxiliary power supply, and aims to solve the problem of low efficiency of the existing semi-automatic detection of the voltage of the power supply.
In order to achieve the purpose, the invention provides the following technical scheme:
a method of detecting a voltage of an auxiliary power supply, the method comprising:
receiving a test file of a detection terminal and sending a target voltage value to an auxiliary power supply;
acquiring actual voltage values of two ends of the auxiliary power supply detected by the detection terminal;
calculating a difference value of the actual voltage value relative to the target voltage value;
and judging whether the difference value falls into a preset tolerance threshold value, and if the difference value falls into the preset tolerance threshold value, judging that the voltages at the two ends of the auxiliary power supply are qualified.
Preferably, the receiving the test file of the detection terminal to send the target voltage value to the auxiliary power supply includes:
the testing files of the detection terminal are a plurality of testing files, the auxiliary power supply connected with each testing file automatically sends out a corresponding target voltage value, and the testing files comprise a starting file and a closing file.
Preferably, the auxiliary power supply connected to each test file automatically sends out a corresponding target voltage value, and a single chip microcomputer arranged in the detection terminal realizes automatic control over each test file.
Preferably, the acquiring the actual voltage value detected by the detection terminal across the auxiliary power supply includes:
and converting the voltage at two ends of the auxiliary power supply into an actual voltage value in an analog-to-digital mode based on an A/D converter built in the detection terminal.
Preferably, the determining whether the difference value falls within a preset tolerance threshold includes:
and if the difference value does not fall into the preset tolerance threshold value, judging whether each test file of the detection terminal is detected completely.
Preferably, the determining whether each test file of the detection terminal is detected completely includes:
when the detection of each test file of the detection terminal is not finished, jumping to the next test file and repeating the voltage detection method of the auxiliary power supply;
and when the test file of the detection terminal is detected, finishing the detection of the voltages at the two ends of the auxiliary power supply, and determining that the voltages at the two ends of the auxiliary power supply are unqualified.
Preferably, the method for judging whether the voltage at the two ends of the auxiliary power supply is qualified or unqualified further comprises a first early warning prompt and a second early warning prompt,
when the judged voltages at the two ends of the auxiliary power supply are qualified, a first early warning prompt is sent out;
and when the judged voltages at the two ends of the auxiliary power supply are unqualified, sending a second early warning prompt.
In addition, the invention also provides a voltage detection device of the auxiliary power supply, which comprises a processor, wherein the processor realizes the voltage detection method of the auxiliary power supply.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a voltage detection device and a method of an auxiliary power supply, which send a target voltage value to the auxiliary power supply by receiving a test file of a detection terminal, calculate a difference value of the actual voltage value relative to the target voltage value after acquiring an actual voltage value of two ends of the auxiliary power supply detected by the detection terminal, finally judge whether the difference value falls within a preset tolerance threshold value, and if the difference value falls within the preset tolerance threshold value, the voltage of the two ends of the auxiliary power supply is qualified. The method and the device have the advantages that the actual voltage value and the target voltage value generated by the auxiliary power supply are automatically obtained, the difference value between the actual voltage value and the target voltage value is calculated, and then whether the auxiliary power supply is qualified or not is judged, the detection is rapid and efficient, the efficiency of detecting the auxiliary power supply is further improved, and the method and the device have great significance.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a flow chart of a voltage detection method for an auxiliary power supply according to a preferred embodiment of the present invention;
FIG. 2 is a graph of voltage versus power performance of the auxiliary power supply of the present invention;
FIG. 3 is a block diagram of a preferred embodiment of the method for detecting the voltage of the auxiliary power supply according to the present invention;
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
An embodiment of the present invention provides a voltage detection method for an auxiliary power supply, which is a flowchart of a preferred embodiment of the voltage detection method for an auxiliary power supply according to the present invention, referring to fig. 1, and the method includes:
and S1, receiving the test file of the detection terminal and sending a target voltage value to the auxiliary power supply.
The detection terminal of the invention can be a voltage detection device of an auxiliary power supply, such as a detection instrument or connected external equipment, the detection terminal is used for being connected with the auxiliary power supply and supplying power, a test gear is arranged in the detection terminal, a target voltage value is given to the auxiliary power supply by starting the test gear, furthermore, the test gear of the detection terminal is a plurality of test gears, the auxiliary power supply connected with each test gear automatically sends out a corresponding target voltage value, wherein the test gear comprises a start gear and a close gear.
Referring to fig. 2, a graph of voltage versus power performance of an auxiliary power supply having a range of voltage values is shown, wherein the voltage values of the auxiliary power supply are set to 8.5V, 10.5V, 11.2V, 12.0V, 12.8V, 13.3V, and 14.0V. If the existing semi-automatic power supply detection mode is adopted, each voltage value of the power supply needs to be filtered once, so that time and labor are wasted, the detection efficiency is low, and the power supply detection is difficult to finish efficiently.
The voltage value of the auxiliary power supply may be set to other voltage values on the graph, and preferably, the set voltage value (i.e., the target voltage value of the test pattern of the detection terminal as an output to the auxiliary power supply) is a representative value.
Furthermore, the auxiliary power supply connected with each test file automatically sends out a corresponding target voltage value, and a single chip microcomputer arranged in the detection terminal realizes automatic control on each test file.
The single chip microcomputer, i.e., a Microcontroller Unit (Microcontroller Unit), can implement multi-point processing or multi-point simultaneous processing, and in this embodiment, the single chip microcomputer is embedded in the detection terminal, and automatically controls the jump of each test gear and the target voltage value (e.g., 8.5V, 10.5V, 11.2V, 12.0V, 12.8V, 13.3V, 14.0V) output by each test gear, so that the detection terminal implements automatic control over the auxiliary power supply.
And S2, acquiring the actual voltage value of the two ends of the auxiliary power supply detected by the detection terminal.
The detection terminal in this embodiment is internally provided with an a/D Converter, i.e. an Analog to digital Converter (Analog to digital Converter), and generally, the a/D Converter converts an input voltage signal into an output digital signal. Since digital signals do not have practical significance per se, only one relative magnitude is represented. Any a/D converter needs a reference analog quantity (for example, the target voltage value in step S1) as a conversion standard. For example, the a/D converter converts the detected voltage across the auxiliary power supply into an actual voltage value.
In one embodiment, an A/D converter of the detection terminal is connected with the auxiliary power supply, a load resistor is arranged between the A/D converter and the auxiliary power supply, the detection terminal detects data information at two ends of the auxiliary power supply, and the data information is converted into an actual voltage value in an analog-to-digital mode through the A/D converter.
And S3, calculating the difference value of the actual voltage value relative to the target voltage value.
In this embodiment, after the detection terminal obtains the target voltage value and the actual voltage value, the difference between the actual voltage value and the target voltage value is calculated by the built-in single chip microcomputer. For example, the target voltage value given is 11.2V, and the actual voltage value obtained by conversion is 11.205V.
And S4, judging whether the difference value falls into a preset tolerance threshold value, and if the difference value falls into the preset tolerance threshold value, judging that the voltages at the two ends of the auxiliary power supply are qualified.
The preset tolerance threshold is a preset value, which is set to ± 0.02 in this embodiment, and when the calculated difference falls within the preset tolerance threshold, the voltage at the two ends of the auxiliary power supply is determined to be qualified.
In an optional embodiment, if the target voltage value output by the test file of the detection terminal is 11.2V, the actual voltage value obtained by conversion by the a/D converter is 11.205V, and then the difference between the actual voltage value and the target voltage value is calculated by the single chip microcomputer to be 11.2V-11.195V ═ 0.005V, and the difference is 0.005V and falls within the preset tolerance threshold value of ± 0.02, the voltage at the two ends of the auxiliary power supply can be judged to be qualified.
Further, the determining whether the difference falls within a preset tolerance threshold includes:
and if the difference value does not fall into the preset tolerance threshold value, judging whether each test file of the detection terminal is detected completely.
In another alternative embodiment, if the target voltage value output by the test gear of the detection terminal is 11.2V, the actual voltage value obtained by conversion by the a/D converter is 9.6V, and then the difference between the actual voltage value and the target voltage value is calculated by the single chip microcomputer to be 11.2V-9.6V-1.6V, and the difference is 1.6V, which does not fall within the preset tolerance threshold ± 0.02, which indicates that the auxiliary power supply detected by the test gear does not meet the requirement, at this time, it is necessary to determine whether each test gear of the detection terminal has been detected.
Further, the determining whether each test file of the detection terminal is detected completely includes:
when the detection of each test file of the detection terminal is not finished, jumping to the next test file and repeating the voltage detection method of the auxiliary power supply;
and when the test file of the detection terminal is detected, finishing the detection of the voltages at the two ends of the auxiliary power supply, and determining that the voltages at the two ends of the auxiliary power supply are unqualified.
In an alternative embodiment, after the calculated difference (e.g., 1.6V) does not fall within the preset tolerance threshold (e.g., ± 0.02), when it is determined that there is any untested test file, the process jumps to the next test file and repeats the steps from S1 to S4.
In another optional embodiment, when the judged test file is tested, the detection of the voltages at the two ends of the auxiliary power supply is finished, the voltages at the two ends of the auxiliary power supply are determined to be unqualified, and at the moment, a second early warning prompt is sent out to inform a tester to distinguish and place the unqualified auxiliary power supply.
In summary, the present invention first pays a target voltage value to the auxiliary power through the test file of the detection terminal, calculates the difference between the actual voltage value and the target voltage value after acquiring the actual voltage value of the detection terminal at the two ends of the auxiliary power, and finally determines whether the difference falls within the preset tolerance threshold, and if the difference falls within the preset tolerance threshold, determines that the detected voltage at the two ends of the auxiliary power is qualified. The method controls the target voltage value output by the test file and the actual voltage value at the two ends of the auxiliary power supply through automatic conversion, calculates the difference value between the target voltage value and the actual voltage value, and judges whether the auxiliary power supply is qualified.
In addition, the invention also provides a voltage detection device of the auxiliary power supply, which comprises a processor, wherein the processor comprises the following steps when in execution:
an output step: and receiving a test file of the detection terminal and sending a target voltage value to the auxiliary power supply.
The detection terminal of the invention can be a voltage detection device of an auxiliary power supply, such as a detection instrument or connected external equipment, the detection terminal is used for being connected with the auxiliary power supply and supplying power, a test gear is arranged in the detection terminal, a target voltage value is given to the auxiliary power supply by starting the test gear, furthermore, the test gear of the detection terminal is a plurality of test gears, the auxiliary power supply connected with each test gear automatically sends out a corresponding target voltage value, wherein the test gear comprises a start gear and a close gear.
Referring to fig. 2, a graph of voltage versus power performance for an auxiliary power supply is shown. The auxiliary power supply has a certain voltage value range, and the voltage values of the auxiliary power supply are set to be 8.5V, 10.5V, 11.2V, 12.0V, 12.8V, 13.3V and 14.0V. If the existing semi-automatic power supply detection mode is adopted, each voltage value of the power supply needs to be filtered once, so that time and labor are wasted, the detection efficiency is low, and the power supply detection is difficult to finish efficiently.
The voltage value of the auxiliary power supply may be set to other voltage values on the graph, and preferably, the set voltage value (i.e., the target voltage value of the test pattern of the detection terminal as an output to the auxiliary power supply) is a representative value.
An acquisition step: and acquiring the actual voltage values of the two ends of the auxiliary power supply detected by the detection terminal.
The detection terminal in this embodiment is internally provided with an a/D Converter, i.e. an Analog to digital Converter (Analog to digital Converter), and generally, the a/D Converter converts an input voltage signal into an output digital signal. Since digital signals do not have practical significance per se, only one relative magnitude is represented. Any a/D converter needs a reference analog quantity (for example, the target voltage value in step S1) as a conversion standard. For example, the a/D converter converts the detected voltage across the auxiliary power supply into an actual voltage value.
In one embodiment, an A/D converter of the detection terminal is connected with the auxiliary power supply, a load resistor is arranged between the A/D converter and the auxiliary power supply, the detection terminal detects data information at two ends of the auxiliary power supply, and the data information is converted into an actual voltage value in an analog-to-digital mode through the A/D converter.
A calculation step: calculating a difference of the actual voltage value with respect to the target voltage value.
In this embodiment, after the detection terminal obtains the target voltage value and the actual voltage value, the difference between the actual voltage value and the target voltage value is calculated by the built-in single chip microcomputer. For example, the target voltage value given is 11.2V, and the actual voltage value obtained by conversion is 11.205V.
A judging step: and judging whether the difference value falls into a preset tolerance threshold value, and if the difference value falls into the preset tolerance threshold value, judging that the voltages at the two ends of the auxiliary power supply are qualified.
The preset tolerance threshold is a preset value, which is set to ± 0.02 in this embodiment, and when the calculated difference falls within the preset tolerance threshold, the voltage at the two ends of the auxiliary power supply is determined to be qualified.
In an optional embodiment, if the target voltage value output by the test file of the detection terminal is 11.2V, the actual voltage value obtained by conversion by the a/D converter is 11.205V, and then the difference between the actual voltage value and the target voltage value is calculated by the single chip microcomputer to be 11.2V-11.195V ═ 0.005V, and the difference is 0.005V and falls within the preset tolerance threshold value of ± 0.02, the voltage at the two ends of the auxiliary power supply can be judged to be qualified.
Referring to fig. 3, a block diagram of a preferred embodiment of the method for detecting the voltage of the auxiliary power supply is shown. The program module diagram is a voltage detection program, and the functions or operation steps implemented when the voltage detection program is executed are all similar to the voltage detection method of the auxiliary power supply, and are not described in detail here, for example, where:
the output module is used for receiving a test file of the detection terminal and sending a target voltage value to the auxiliary power supply;
the acquisition module is used for acquiring the actual voltage values of the two ends of the auxiliary power supply detected by the detection terminal;
the calculating module is used for calculating the difference value of the actual voltage value relative to the target voltage value; and
and the judging module is used for judging whether the difference value falls into a preset tolerance threshold value, and if the difference value falls into the preset tolerance threshold value, judging that the voltages at the two ends of the auxiliary power supply are qualified.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty, and such will fall within the scope of the invention.
Claims (8)
1. A method for detecting a voltage of an auxiliary power supply, the method comprising:
receiving a test file of a detection terminal and sending a target voltage value to an auxiliary power supply;
acquiring actual voltage values of two ends of the auxiliary power supply detected by the detection terminal;
calculating a difference value of the actual voltage value relative to the target voltage value;
and judging whether the difference value falls into a preset tolerance threshold value, and if the difference value falls into the preset tolerance threshold value, judging that the voltages at the two ends of the auxiliary power supply are qualified.
2. The method according to claim 1, wherein the receiving the test file of the test terminal to send the target voltage value to the auxiliary power source comprises:
the testing files of the detection terminal are a plurality of testing files, the auxiliary power supply connected with each testing file automatically sends out a corresponding target voltage value, and the testing files comprise a starting file and a closing file.
3. The method for detecting the voltage of the auxiliary power supply according to claim 2, wherein the auxiliary power supply connected with each test file automatically sends out a corresponding target voltage value, and a single chip microcomputer arranged in the detection terminal realizes automatic control on each test file.
4. The method according to claim 1, wherein the obtaining of the actual voltage value detected across the auxiliary power supply by the detection terminal comprises:
and converting the voltage at two ends of the auxiliary power supply into an actual voltage value in an analog-to-digital mode based on an A/D converter built in the detection terminal.
5. The method according to claim 1, wherein the determining whether the difference falls within a preset tolerance threshold comprises:
and if the difference value does not fall into the preset tolerance threshold value, judging whether each test file of the detection terminal is detected completely.
6. The method according to claim 5, wherein the determining whether each test file of the test terminals has been detected comprises:
when the detection of each test file of the detection terminal is not finished, jumping to the next test file and repeating the voltage detection method of the auxiliary power supply according to claim 1;
and when the test file of the detection terminal is detected, finishing the detection of the voltages at the two ends of the auxiliary power supply, and determining that the voltages at the two ends of the auxiliary power supply are unqualified.
7. The method for detecting the voltage of the auxiliary power supply according to any one of claims 1 to 6, wherein the method for judging whether the voltage at the two ends of the auxiliary power supply is qualified or unqualified further comprises a first early warning prompt and a second early warning prompt,
when the judged voltages at the two ends of the auxiliary power supply are qualified, a first early warning prompt is sent out;
and when the judged voltages at the two ends of the auxiliary power supply are unqualified, sending a second early warning prompt.
8. A voltage detection device of an auxiliary power supply, characterized in that the voltage detection device of the auxiliary power supply comprises a processor, which when executed implements the voltage detection method of the auxiliary power supply according to any one of claims 1 to 7.
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| CN202010303376.5A CN111337739A (en) | 2020-04-17 | 2020-04-17 | Voltage detection device and method for auxiliary power supply |
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| CN202010303376.5A CN111337739A (en) | 2020-04-17 | 2020-04-17 | Voltage detection device and method for auxiliary power supply |
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