CN114935703B - Automatic testing method, device and system for frequency conversion assembly - Google Patents
Automatic testing method, device and system for frequency conversion assembly Download PDFInfo
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Abstract
The invention discloses a method, a device and a system for automatically testing a frequency conversion assembly, which comprises the steps of establishing a frequency conversion assembly part database; obtaining the production completion rate of the frequency conversion assemblies in the same batch; dividing the same batch of frequency conversion assemblies without the incomplete frequency conversion assemblies into a plurality of test groups according to the standard production time, respectively obtaining the qualification rate of the frequency conversion assemblies of each test group, and carrying out performance test on the test groups with the qualification rate larger than a set qualification rate threshold; obtaining the production completeness of a test group with the qualification rate not greater than a set qualification rate, if the production completeness is greater than a set production completeness threshold value, screening frequency conversion assemblies, screening out fault-free frequency conversion assemblies, and performing performance test on the fault-free frequency conversion assemblies; and the performance test comprises a temperature test and a stability test, and the performance of the frequency conversion assembly is graded according to the temperature test result and the stability test result to finish the automatic test of the frequency conversion assembly. By the technical scheme provided by the invention, the influence of an incomplete variable frequency component on test data can be avoided.
Description
Technical Field
The invention relates to the field of testing, in particular to a method, a device and a system for automatically testing a frequency conversion assembly.
Background
In the production process of the frequency conversion assembly product, comprehensive detection is needed. The existing detection of the frequency conversion assembly product is to test whether a module to be tested has quality problems or not in the test process, function check is required to be carried out according to requirements, the reliability test is completed repeatedly until the existing test process is very complicated, the workload of testers is large, and the reliability test cannot be accurately controlled for a long time, so that how to more efficiently complete the detection of the produced product is the subject to be researched by the researchers at present.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an automatic testing method of a frequency conversion assembly, which comprises the following steps:
step one, establishing a frequency conversion component part database according to the model of the frequency conversion component and the part data forming the corresponding frequency conversion component model;
step two, obtaining the production completeness of the frequency conversion assemblies in the same batch, if the production completeness is larger than a set production completeness threshold value, enabling the production equipment to work normally, and entering step three, otherwise, performing fault detection and elimination on the production equipment for the production equipment fault;
dividing the frequency conversion assemblies in the same batch without the incomplete frequency conversion assemblies into a plurality of test groups according to the standard production time length, respectively obtaining the qualification rate of the frequency conversion assemblies of each test group, and carrying out performance test on the test groups with the qualification rate larger than a set qualification rate threshold; entering the step five; performing secondary test on the test group with the qualification rate not greater than the set qualification rate, and entering the fourth step;
step four, obtaining the production completeness of the test set with the qualification rate not greater than the set qualification rate, if the production completeness is greater than the set production completeness threshold value, screening the frequency conversion assemblies, screening out the frequency conversion assemblies without faults, carrying out performance test on the frequency conversion assemblies without faults, and entering step five; if the production completeness is not greater than the set production completeness threshold value, judging that the test set frequency conversion assembly is an accident product and discarding the accident product;
and step five, the performance test comprises a temperature test and a stability test, and the performance of the frequency conversion assembly is graded according to the temperature test and the stability test result to finish the automatic test of the frequency conversion assembly.
Further, the establishing of the frequency conversion component part database according to the model of the frequency conversion component and the part data forming the model corresponding to the frequency conversion component comprises:
the database comprises the models of the frequency conversion assemblies, the number of the parts forming the corresponding frequency conversion assembly models and the weight of each part, and the standard weight of the frequency conversion assemblies is obtained according to the weight of each part forming the frequency conversion assemblies.
Further, the obtaining the production completion rate of the frequency conversion assemblies in the same batch includes:
obtaining the standard weight of the frequency conversion assembly according to the weight of each part forming the frequency conversion assembly, obtaining the weight of the frequency conversion assembly after production is completed, if the difference value between the obtained weight of the frequency conversion assembly after production and the standard weight is within a set difference value range, the frequency conversion assembly is completely produced, otherwise, the frequency conversion assembly is completely non-produced; and obtaining the production completion rate according to the ratio of the quantity of the complete frequency conversion assemblies produced in the same batch to the total quantity of the frequency conversion assemblies produced in the same batch.
Further, the same batch of frequency conversion assemblies without the complete frequency conversion assemblies are divided into a plurality of test groups according to the standard production time, and the test groups comprise: and after the detected incomplete frequency conversion assemblies are removed, obtaining the frequency conversion assemblies after the incomplete frequency conversion assemblies are removed, and dividing the frequency conversion assemblies after the incomplete frequency conversion assemblies are removed into a plurality of test groups according to the standard production time.
Furthermore, the performance test comprises a temperature test and a stability test, the performance of the frequency conversion assembly is graded according to the temperature test and the stability test result, and the automatic test of the frequency conversion assembly is completed, and the method comprises the following processes:
step one, randomly extracting frequency conversion components with set proportion from frequency conversion components to be tested;
step two, performing temperature reliability test on the extracted frequency conversion assemblies to obtain temperature difference values of the frequency conversion assemblies in the standby state, if the temperature difference values are within a set temperature difference value threshold value, passing the temperature reliability test, and entering step three, otherwise failing to pass the temperature reliability test;
step three, performing performance stability test on the frequency conversion assembly passing the temperature reliability test, randomly dividing the frequency conversion assembly passing the temperature reliability test into a standard performance stability test group and a limit performance stability test group, and performing standard performance stability test on the standard performance stability test group to obtain standard performance stability; carrying out limit performance stability test on the limit performance stability test group to obtain limit performance stability, and obtaining stability deviation according to the difference value of the standard performance stability and the limit performance stability; the standard performance stability is as follows: under the set standard power, within the standard performance stability test duration, the ratio of the number of the frequency conversion assemblies without faults to the number of the frequency conversion assemblies subjected to the standard performance stability test; the stability of the ultimate performance is as follows: under the set limit power, in the limit performance stability test duration, the ratio of the number of the frequency conversion assemblies without faults to the number of the frequency conversion assemblies for carrying out the limit performance stability test;
step four, randomly extracting frequency conversion assemblies with set proportion from the standard performance stability test group, carrying out limit performance stability test to obtain second limit performance stability, obtaining second stability deviation according to the difference value of the second limit performance stability and the limit performance stability, if the second stability deviation is within the stability deviation, the limit performance stability of the frequency conversion assemblies is reliable, otherwise, the limit performance stability of the frequency conversion assemblies is unreliable;
step five, randomly extracting frequency conversion assemblies with a set proportion from the limit performance stability test group, carrying out standard performance stability test to obtain second standard performance stability, obtaining third stability deviation according to the difference value of the second standard performance stability and the standard performance stability, if the third stability deviation is within the stability deviation, the standard performance stability of the frequency conversion assemblies is reliable, otherwise, the standard performance stability of the frequency conversion assemblies is unreliable;
and step six, if the stability of the ultimate performance of the frequency conversion assembly is reliable and the stability of the standard performance of the frequency conversion assembly is reliable, the performance of the frequency conversion assembly is reliable, otherwise, the performance of the frequency conversion assembly is unreliable.
The automatic testing device of the frequency conversion component comprises a weight detection device, a data processing device and a communication device, wherein the weight detection device and the communication device are respectively connected with the data processing device; the weight detection device is used for detecting the weight of the produced frequency conversion assembly.
The automatic frequency conversion component test system comprises a communication module, a frequency conversion component complete detection module, a database module, a data processing module, a temperature test module, a performance test module and a fault detection module; the complete detection module, the temperature test module, the performance test module, the fault detection module and the communication module of the frequency conversion assembly are respectively connected with the data processing module, and the database module is in communication connection with the communication module; and the automatic testing device of the frequency conversion assembly is in communication connection with the communication device.
Preferably, the complete detection module of the frequency conversion assembly comprises a production complete rate calculation module, a comparison module and a production complete rate threshold module; the production completeness calculation module, the comparison module and the production completeness threshold module are respectively connected with the data processing module.
The beneficial effects of the invention are: according to the technical scheme provided by the invention, the incomplete frequency conversion assembly can be removed before the frequency conversion assembly is tested, so that the influence of the incomplete frequency conversion assembly on test data can be avoided, and the workload of a tester is reduced.
Drawings
FIG. 1 is a schematic flow chart of an automatic testing method for a frequency conversion module;
FIG. 2 is a schematic diagram of an automatic testing apparatus for frequency conversion modules;
fig. 3 is a schematic diagram of an automatic testing system for frequency conversion components.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
For the purpose of making the object, technical solution and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising "does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element.
The features and properties of the present invention are described in further detail below with reference to examples.
As shown in fig. 1, an automatic testing method for a frequency conversion module includes the following steps:
step one, establishing a frequency conversion component part database according to the model of the frequency conversion component and the part data forming the corresponding frequency conversion component model;
step two, obtaining the production completeness of the frequency conversion assemblies in the same batch, if the production completeness is larger than a set production completeness threshold value, enabling the production equipment to work normally, and entering step three, otherwise, carrying out fault detection and elimination on the production equipment for the fault of the production equipment;
dividing the frequency conversion assemblies in the same batch without the incomplete frequency conversion assemblies into a plurality of test groups according to the standard production time length, respectively obtaining the qualification rate of the frequency conversion assemblies of each test group, and carrying out performance test on the test groups with the qualification rate larger than a set qualification rate threshold; entering the step five; performing secondary test on the test group with the qualification rate not greater than the set qualification rate, and entering the step four;
step four, obtaining the production completeness of the test set with the qualification rate not greater than the set qualification rate, if the production completeness is greater than the set production completeness threshold value, screening the frequency conversion assemblies, screening out the fault-free frequency conversion assemblies, carrying out performance test on the fault-free frequency conversion assemblies, and entering the step five; if the production completeness is not greater than the set production completeness threshold value, judging that the test set frequency conversion assembly is an accident product and discarding the accident product;
and step five, the performance test comprises a temperature test and a stability test, and the performance of the frequency conversion assembly is graded according to the temperature test and the stability test result to finish the automatic test of the frequency conversion assembly.
According to the model of the frequency conversion assembly and the part data forming the model corresponding to the frequency conversion assembly, a frequency conversion assembly part database is established, and the method comprises the following steps:
the database comprises the models of the frequency conversion assemblies, the number of the parts forming the corresponding frequency conversion assembly models and the weight of each part, and the standard weight of the frequency conversion assemblies is obtained according to the weight of each part forming the frequency conversion assemblies.
The obtaining of the production completeness of the frequency conversion assemblies in the same batch comprises:
obtaining the standard weight of the frequency conversion assembly according to the weight of each part forming the frequency conversion assembly, obtaining the weight of the produced frequency conversion assembly, if the difference value between the obtained weight of the produced frequency conversion assembly and the standard weight is within a set difference value range, the frequency conversion assembly is completely produced, otherwise, the frequency conversion assembly is not completely produced; and obtaining the production completeness rate according to the ratio of the number of the complete frequency conversion assemblies produced in the same batch to the total number of the complete frequency conversion assemblies produced in the same batch.
The same batch of frequency conversion assemblies without the complete frequency conversion assemblies are divided into a plurality of test groups according to the standard production time, and the test groups comprise: and after the detected incomplete frequency conversion assemblies are removed, obtaining the frequency conversion assemblies after the incomplete frequency conversion assemblies are removed, and dividing the frequency conversion assemblies after the incomplete frequency conversion assemblies are removed into a plurality of test groups according to the standard production time.
The performance test comprises a temperature test and a stability test, the performance of the frequency conversion assembly is graded according to the temperature test and the stability test result, and the automatic test of the frequency conversion assembly is completed, and the method comprises the following processes:
step one, randomly extracting frequency conversion components with set proportions from frequency conversion components to be tested;
step two, performing temperature reliability test on the extracted frequency conversion assemblies to obtain temperature difference values of the frequency conversion assemblies in the standby state, if the temperature difference values are within a set temperature difference value threshold value, passing the temperature reliability test, and entering step three, otherwise failing to pass the temperature reliability test;
step three, performing performance stability test on the frequency conversion assembly passing the temperature reliability test, randomly dividing the frequency conversion assembly passing the temperature reliability test into a standard performance stability test group and a limit performance stability test group, and performing standard performance stability test on the standard performance stability test group to obtain standard performance stability; carrying out limit performance stability test on the limit performance stability test group to obtain limit performance stability, and obtaining stability deviation according to the difference value of the standard performance stability and the limit performance stability; the standard performance stability is as follows: under the set standard power, within the standard performance stability test duration, the ratio of the number of the frequency conversion assemblies without faults to the number of the frequency conversion assemblies subjected to the standard performance stability test; the stability of the ultimate performance is as follows: under the set limit power, in the limit performance stability test duration, the ratio of the number of the frequency conversion assemblies which do not have faults to the number of the frequency conversion assemblies which are subjected to the limit performance stability test;
step four, randomly extracting frequency conversion assemblies with set proportions from the standard performance stability testing group, carrying out limit performance stability testing to obtain second limit performance stability, obtaining second stability deviation according to the difference value of the second limit performance stability and the limit performance stability, if the second stability deviation is within the stability deviation, the limit performance stability of the frequency conversion assemblies is reliable, otherwise, the limit performance stability of the frequency conversion assemblies is unreliable;
step five, randomly extracting frequency conversion assemblies with a set proportion from the limit performance stability test group, carrying out standard performance stability test to obtain second standard performance stability, obtaining third stability deviation according to the difference value of the second standard performance stability and the standard performance stability, if the third stability deviation is within the stability deviation, the standard performance stability of the frequency conversion assemblies is reliable, otherwise, the standard performance stability of the frequency conversion assemblies is unreliable;
and step six, if the stability of the limit performance of the frequency conversion assembly is reliable and the stability of the standard performance of the frequency conversion assembly is reliable, the performance of the frequency conversion assembly is reliable, otherwise, the performance of the frequency conversion assembly is unreliable.
The automatic testing device for the frequency conversion assembly shown in fig. 2 comprises a weight detection device, a data processing device and a communication device, wherein the weight detection device and the communication device are respectively connected with the data processing device; the weight detection device is used for detecting the weight of the produced variable frequency assembly, and the communication device is used for data communication.
The automatic test system of the frequency conversion component using the automatic test device of the frequency conversion component shown in fig. 3 comprises a communication module, a complete test module of the frequency conversion component, a database module, a data processing module, a temperature test module, a performance test module and a fault detection module; the frequency conversion component complete detection module, the temperature test module, the performance test module, the fault detection module and the communication module are respectively connected with the data processing module, and the database module is in communication connection with the communication module; and the automatic testing device of the frequency conversion assembly is in communication connection with the communication device.
The system comprises a communication module, a frequency conversion component complete detection module, a database module and a frequency conversion component automatic testing device, wherein the communication module is used for carrying out data communication to obtain the component weight of the model corresponding to the frequency conversion component in the database, the frequency conversion component complete detection module is used for obtaining the frequency conversion component production complete rate according to the weight of the frequency conversion component obtained by the frequency conversion component automatic testing device, and the database module is used for storing the model of the frequency conversion component and the part data forming the model corresponding to the frequency conversion component and is used for workers to modify the data of the frequency conversion component; the temperature testing module is used for testing the temperature of the variable frequency assembly and acquiring the temperature in the testing process; the performance testing module is used for testing the performance of the assembly, and the fault detecting module is used for detecting the fault of the frequency conversion assembly.
The frequency conversion assembly completion detection module comprises a production completion rate calculation module, a comparison module and a production completion rate threshold module; the production completeness calculation module, the comparison module and the production completeness threshold module are respectively connected with the data processing module;
the comparison module is used for comparing the production completeness obtained by the production completeness calculation module with a production completeness threshold value of the corresponding frequency conversion component stored by the production completeness threshold value module to obtain a comparison result.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. An automatic testing method for a frequency conversion assembly is characterized by comprising the following steps:
step one, establishing a frequency conversion component part database according to the model of the frequency conversion component and the part data forming the corresponding frequency conversion component model;
step two, obtaining the production completeness of the frequency conversion assemblies in the same batch, if the production completeness is larger than a set production completeness threshold value, enabling the production equipment to work normally, and entering step three, otherwise, performing fault detection and elimination on the production equipment for the production equipment fault;
dividing the frequency conversion assemblies in the same batch without the incomplete frequency conversion assemblies into a plurality of test groups according to the standard production time, respectively obtaining the qualification rate of the frequency conversion assemblies of each test group, and carrying out performance test on the test groups with the qualification rate larger than a set qualification rate threshold; entering the step five; performing secondary test on the test group with the qualification rate not greater than the set qualification rate, and entering the fourth step;
step four, obtaining the production completeness of the test set with the qualification rate not greater than the set qualification rate, if the production completeness is greater than the set production completeness threshold value, screening the frequency conversion assemblies, screening out the fault-free frequency conversion assemblies, carrying out performance test on the fault-free frequency conversion assemblies, and entering the step five; if the production completeness is not greater than the set production completeness threshold value, judging that the test set of frequency conversion assemblies are accident products and discarding the products;
step five, the performance test comprises a temperature test and a stability test, and the performance of the frequency conversion assembly is graded according to the temperature test and the stability test result to finish the automatic test of the frequency conversion assembly;
according to the model of the frequency conversion assembly and the part data forming the model corresponding to the frequency conversion assembly, a frequency conversion assembly part database is established, and the method comprises the following steps:
the database comprises the types of the frequency conversion assemblies, the number of the parts forming the corresponding types of the frequency conversion assemblies and the weight of each part, and the standard weight of the frequency conversion assemblies is obtained according to the weight of each part forming the frequency conversion assemblies;
the obtaining of the production completeness of the frequency conversion assemblies in the same batch comprises the following steps:
obtaining the standard weight of the frequency conversion assembly according to the weight of each part forming the frequency conversion assembly, obtaining the weight of the frequency conversion assembly after production, if the difference value between the obtained weight of the frequency conversion assembly after production and the standard weight is within a set difference value range, the frequency conversion assembly is completely produced, and if not, the frequency conversion assembly is not completely produced; obtaining the production completeness according to the ratio of the number of the complete frequency conversion assemblies produced in the same batch to the total number of the complete frequency conversion assemblies produced in the same batch;
the same batch of frequency conversion assemblies without the complete frequency conversion assemblies are divided into a plurality of test groups according to the standard production time, and the test groups comprise: removing the detected incomplete frequency conversion assemblies to obtain frequency conversion assemblies after the incomplete frequency conversion assemblies are removed, and dividing the frequency conversion assemblies after the incomplete frequency conversion assemblies are removed into a plurality of test groups according to the standard production time;
the performance test comprises a temperature test and a stability test, the performance of the frequency conversion assembly is graded according to the temperature test and the stability test result, and the automatic test of the frequency conversion assembly is completed, and the method comprises the following processes:
s1, randomly extracting frequency conversion components with set proportions from frequency conversion components to be tested;
s2, carrying out temperature reliability test on the extracted frequency conversion assemblies to obtain temperature difference values of the frequency conversion assemblies in the standby state, if the temperature difference values are within a set temperature difference value threshold value, passing the temperature reliability test, and entering S3, otherwise, failing to pass the temperature reliability test;
s3, performing performance stability test on the frequency conversion assemblies passing the temperature reliability test, randomly dividing the frequency conversion assemblies passing the temperature reliability test into a standard performance stability test group and a limit performance stability test group, and performing standard performance stability test on the standard performance stability test group to obtain standard performance stability; carrying out limit performance stability test on the limit performance stability test group to obtain limit performance stability, and obtaining stability deviation according to the difference value of the standard performance stability and the limit performance stability; the standard performance stability is as follows: under the set standard power, within the standard performance stability test duration, the ratio of the number of the frequency conversion assemblies without faults to the number of the frequency conversion assemblies subjected to the standard performance stability test; the stability of the ultimate performance is as follows: under the set limit power, in the limit performance stability test duration, the ratio of the number of the frequency conversion assemblies without faults to the number of the frequency conversion assemblies for carrying out the limit performance stability test;
s4, randomly extracting frequency conversion assemblies with a set proportion from the standard performance stability test group, carrying out limit performance stability test to obtain second limit performance stability, obtaining second stability deviation according to the difference value of the second limit performance stability and the limit performance stability, if the second stability deviation is within the stability deviation, the limit performance stability of the frequency conversion assemblies is reliable, otherwise, the limit performance stability of the frequency conversion assemblies is unreliable;
s5, randomly extracting frequency conversion assemblies with a set proportion from the limit performance stability test group, carrying out standard performance stability test to obtain a second standard performance stability, obtaining a third stability deviation according to the difference value of the second standard performance stability and the standard performance stability, wherein if the third stability deviation is within the stability deviation, the standard performance stability of the frequency conversion assemblies is reliable, otherwise, the standard performance stability of the frequency conversion assemblies is unreliable;
and S6, if the limit performance stability of the frequency conversion assembly is reliable and the standard performance stability of the frequency conversion assembly is reliable, the performance of the frequency conversion assembly is reliable, and if not, the performance of the frequency conversion assembly is unreliable.
2. The automatic frequency conversion component testing system applying the automatic frequency conversion component testing method of claim 1 is characterized by comprising a communication module, a frequency conversion component complete detection module, a database module, a data processing module, a temperature testing module, a performance stability testing module and a fault detection module; the frequency conversion component complete detection module, the temperature test module, the performance stability test module, the fault detection module and the communication module are respectively connected with the data processing module, and the database module is in communication connection with the communication module; and the automatic testing device of the frequency conversion assembly is in communication connection with the communication device.
3. The automatic test system of frequency conversion assemblies according to claim 2, wherein said frequency conversion assembly completion detection module comprises a production completion rate calculation module, a comparison module, a production completion rate threshold module; the production completeness calculation module, the comparison module and the production completeness threshold module are respectively connected with the data processing module.
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| CN112749893A (en) * | 2021-01-08 | 2021-05-04 | 上海大学 | Data mining service platform based on cloud computing |
| CN113469560A (en) * | 2021-07-19 | 2021-10-01 | 北京东华博泰科技有限公司 | Cloud platform data management system based on industrial big data |
| CN113283818A (en) * | 2021-07-21 | 2021-08-20 | 四川远方云天食品科技有限公司 | Product quality monitoring method and system for food |
| CN113627833A (en) * | 2021-10-12 | 2021-11-09 | 江苏新恒基特种装备股份有限公司 | Product processing quality monitoring method and system |
| CN114254853A (en) * | 2021-10-28 | 2022-03-29 | 一汽奔腾轿车有限公司 | Method, system, equipment and storage medium for reducing weight of whole vehicle |
| CN114264911A (en) * | 2022-03-03 | 2022-04-01 | 成都市克莱微波科技有限公司 | Power amplifier reliability test method and test system |
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