CN111327372B - Radio frequency test method, system and device - Google Patents
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- 238000010998 test method Methods 0.000 title claims description 10
- 238000012360 testing method Methods 0.000 claims abstract description 140
- 238000002360 preparation method Methods 0.000 claims description 7
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- 238000003860 storage Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 26
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 13
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 18
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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Abstract
The present invention relates to the field of testing of communication devices, and in particular, to a radio frequency testing method, system and apparatus. A radio frequency testing method, comprising the steps of: when the golden board is used for calibrating the line loss, parameters corresponding to the golden board are pulled from the cloud end to calibrate the line loss, and a line loss file is generated and uploaded to the cloud end to serve as a record of the line loss of the environment; and after the radio frequency test formally starts, pulling the line loss file and the limit value file from the cloud end, and carrying out the radio frequency test according to the line loss file and the limit value file. The method provided by the invention optimizes the radio frequency test time, reduces the test time of a single BK7231S module in the original factory from more than 25 seconds to 12 seconds, and reduces the occupied time of the instrument by more than half; files in the test process do not support local modification, so that the rigor of the radio frequency test and the safety of data are ensured; the time cost and the labor cost of a factory production line are reduced, and the radio frequency test performance of the modules in batches is ensured; thereby the flow of the factory production line is more standard, reasonable and effective.
Description
Technical Field
The present invention relates to the field of testing of communication devices, and in particular, to a radio frequency testing method, system and apparatus.
Background
At present, radio frequency tests of factory production lines are generally carried out by adopting instruments, and radio frequency test time of a single BK7231S module is more than 25 seconds according to test schemes provided by mainstream radio frequency instrument vendors such as a litepoint and a polar convergence instrument. Meanwhile, before the radio frequency test is carried out, a link of line loss calibration is required, namely, the power loss caused by the test environment, instruments and the like is required. Formal testing requires that this loss be added to the line loop. Different from research and development experimental environment, one test instrument of a factory is connected with a corresponding number of clamps and independently tested by using control software provided by an instrument manufacturer. The log of the test reflects the test results in detail. However, the test items, test indexes, etc. are determined by the configuration files in the control software provided by the instrument vendor. Differences in the profiles will directly affect the test results of the radio frequency. Line loss calibration and radio frequency testing are not usually in the same software. The production line typically arranges for a technician to modify a plurality of configuration files that require radio frequency test related software. And debugging the environment, and waiting for the equipment to test.
The current test mode can meet the requirement of factory batch test, but the detailed statistics of the test result and the fact that the independent module has a small amount of information can not know whether the module has been subjected to the radio frequency test or not. Meanwhile, the high reliability cannot be achieved for manually modifying the configuration file of the test instrument, and the condition of missing configuration exists under the condition of a large number of instruments. The regular maintenance of some standard parameters, line loss and the like of the instrument cannot be well guaranteed. The combination of the above factors has proved that the results of the tests cannot guarantee 100% no defect in the radio frequency function.
Disclosure of Invention
The method provided by the invention optimizes the radio frequency test time, reduces the test time of a single BK7231S module in the original factory from more than 25 seconds to 12 seconds, and reduces the occupied time of the instrument by more than half; files in the test process do not support local modification, so that the rigor of the radio frequency test and the safety of data are ensured; the time cost and the labor cost of a factory production line are reduced, and the radio frequency test performance of the modules in batches is ensured; thereby the flow of the factory production line is more standard, reasonable and effective.
In order to achieve the above object, a technical solution of a first aspect of the present invention provides a radio frequency testing method, including the following steps:
when the golden board is used for calibrating the line loss, parameters corresponding to the golden board are pulled from the cloud end to calibrate the line loss, and a line loss file is generated and uploaded to the cloud end to serve as a record of the line loss of the environment;
and after the radio frequency test formally starts, pulling the line loss file and the limit value file from the cloud end, and carrying out the radio frequency test according to the line loss file and the limit value file.
In some possible embodiments, the parameters of the golden board for the golden board calibration line loss and the limit values for the radio frequency test are uploaded to the cloud.
In some possible embodiments, the parameter of the golden plate for the golden plate calibration line loss comprises a target power value.
In some possible embodiments, the golden boards are associated with the corresponding golden board data in the cloud database through golden board numbers.
In some possible embodiments, the line loss is a line loss between the test instrument and the current radio frequency line;
the line loss file comprises a line loss file name, a product model, an instrument number, a golden board number, a line loss date and a test period of data.
In some possible embodiments, the results of the radio frequency test are stored locally and/or in the cloud.
In some possible implementation manners, valid values in the testing process are captured, and a visualized data result is obtained.
A technical solution of a second aspect of the present invention provides a radio frequency testing system, including:
the system comprises a preparation unit, a processing unit and a processing unit, wherein the preparation unit is used for pulling parameters corresponding to the golden boards from a cloud terminal to carry out line loss calibration when the golden boards calibrate line loss, and generating line loss files to be uploaded to the cloud terminal to be used as records of the line loss of the environment;
and the test unit is used for pulling the line loss file and the limit value file from the cloud after the radio frequency test formally starts, and carrying out the radio frequency test according to the line loss file and the limit value file.
In some possible embodiments, the system further includes an uploading unit, configured to upload the parameters of the golden board for calibrating the line loss and the limit value for the radio frequency test to the cloud.
In some possible embodiments, the system further includes an association unit, configured to associate the golden board with corresponding golden board data in the cloud database.
The technical solution of the third aspect of the present invention provides a storage medium for storing executable instructions, where the executable instructions, when executed, implement the steps of the radio frequency testing method described above.
Compared with the prior art, the invention at least has the following beneficial effects:
1. the method optimizes the radio frequency test items, reduces the test time of a single BK7231S module in the original factory from more than 25 seconds to 12 seconds, and reduces the occupied time of the instrument by more than half.
2. The process of the gold plate test and the radio frequency test is combined, all radio frequency tests can be completed on one piece of software, the operation of a production line is convenient, the operation of repeatedly configuring the configuration files of the test instrument is avoided, and the data abnormity caused by the configuration of various files on the production line is reduced.
3. Files in the process do not support local modification, and the rigor of the radio frequency test and the safety of data are guaranteed.
4. And uploading the test log to a cloud end, analyzing key parameters TX, EVM, frequency deviation and the like in the radio frequency process, and ensuring the accuracy of the radio frequency test.
5. The invention stores the golden boards with different cloud ends and the corresponding data in a classified manner, thereby being beneficial to searching the data and preventing the error of the used data.
6. The radio frequency test method provided by the invention enables the flow of a factory production line to be more standard, reasonable and effective.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a flow chart of a radio frequency testing method according to an embodiment of the present invention;
FIG. 2 is a block diagram illustrating a golden board manufacturing process according to an embodiment of the present invention;
FIG. 3 is a flow chart illustrating golden plate calibration steps involved in an embodiment of the present invention;
FIG. 4 shows a block flow diagram of radio frequency testing steps involved in an embodiment of the present invention;
FIG. 5 shows a time series diagram of a test BK73 7321S HT 207 channel EVM involved in an embodiment of the invention;
FIG. 6 shows a graph of the results of testing BK7321S HT 207 channel EVM Process Capability Sixpack, according to an embodiment of the invention;
FIG. 7 is a block diagram of a radio frequency test system according to an embodiment of the present invention;
fig. 8 is a block diagram showing another structure of the radio frequency test system according to the embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, an embodiment of the present invention discloses a radio frequency testing method, which includes the following steps:
when the golden board is used for calibrating the line loss, parameters corresponding to the golden board are pulled from the cloud end to calibrate the line loss, and a line loss file is generated and uploaded to the cloud end to serve as a record of the line loss of the environment;
and after the radio frequency test formally starts, pulling the line loss file and the limit value file from the cloud end, and carrying out the radio frequency test according to the line loss file and the limit value file.
The radio frequency test method provided by the invention is suitable for radio frequency test of a production line, and particularly based on a high-efficiency radio frequency test method of a production line of Mactong BK7231S, a method for calibrating line loss of a gold plate is adopted, and after the gold plate such as BK7231S is manufactured, parameters belonging to the gold plate are uploaded to a cloud end to be used as records; meanwhile, limit values required by radio frequency testing are sorted and uploaded to a cloud end; when the line loss value needs to be calibrated, the corresponding parameters of the golden board are pulled from the cloud end, line loss calibration is carried out, a line loss file is generated and uploaded to the cloud end to serve as a record of the line loss of the environment. And after the radio frequency test formally starts, pulling the line loss file and the limit value file from the cloud end, and carrying out the radio frequency test according to the line loss file and the limit value file. This process has avoided on the production line to using gold plate calibration line to decrease and the repeated work of the file configuration of radio frequency test, at every turn as long as draw the file from the high in the clouds can, the file of in-process does not support local modification, has guaranteed the rigor of radio frequency test and the security of data, helps the mill to produce the line and reduces time cost and cost of labor, has guaranteed the performance of batch module radio frequency test to the flow that the line was produced to messenger's mill is more normal, reasonable, effective.
In some possible embodiments, the parameters of the golden board for the golden board calibration line loss and the limit values for the radio frequency test are uploaded to the cloud.
In the embodiment of the invention, the gold plate used for calibrating the line loss of the gold plate is screened by adopting the following method:
performing radio frequency calibration on the five gold plate samples to obtain a power value which is a first power value, and obtaining a power average value of the five gold plate samples;
taking the golden board sample with the minimum difference value between the power value and the average power value in the five golden board samples as an alternative golden board sample, disconnecting the onboard antennas of the other four golden board samples from the test points of the radio frequency link, and testing to obtain a second power value;
the second power values of the other four gold plate samples are respectively reduced by the first power values of the corresponding gold plate samples, and the average value is obtained as the antenna loss;
and testing the alternative gold plate sample, setting a line loss value as the sum of the antenna loss and an actual line attenuation value, and determining that the difference between the output power value and the first power value of the alternative gold plate sample is within 0.5dBm, so that the alternative gold plate sample is qualified.
In some possible embodiments, the parameter of the golden plate for the golden plate calibration line loss comprises a target power value.
And the golden board is associated with corresponding golden board data in the cloud database through the golden board number, and relevant parameters such as the model of the golden board are indicated. The data of the corresponding golden board in the cloud database comprises a worksheet number, a model number, SN, MAC, golden board number, golden board version, line loss date, instrument number and standard parameter version. Through the golden board data association corresponding to the golden board and the cloud, related data can be conveniently searched, and the situation that different golden boards pull wrong data from the cloud is avoided.
In some possible embodiments, the golden boards are associated with the corresponding golden board data in the cloud database through golden board numbers.
In some possible embodiments, the line loss is a line loss between the test instrument and the current radio frequency line;
the line loss file comprises a line loss file name, a product model, an instrument number, a golden board number, a line loss date and a test period of data.
In some possible embodiments, the results of the radio frequency test are stored locally and/or in the cloud.
The result of the radio frequency test is stored locally, so that the check and analysis are convenient, and the quality of the radio frequency test is ensured.
Similarly, the result of the radio frequency test is stored in the cloud, and the key parameters TX, EVM, frequency offset and the like in the radio frequency process are analyzed in multiple angles, so that the accuracy of the radio frequency test is ensured.
In some possible embodiments, the valid values in the test process are captured, and the visualized data result is obtained.
The following examples are given.
In the embodiment, the upper computer is used as a carrier, the optimized BK7231S line loss calibration method and radio frequency test method are fused, and the cloud is used as data assistance to store relevant parameters and records. Each upper computer can only correspond to one radio frequency testing instrument. The method comprises the following five steps:
1) the specific process of gold plate production is shown in figure 2.
Firstly, selecting 5 golden plate modules as a pre-prototype in the produced modules, and respectively numbering 1, 2, 3, 4 and 5. Setting a radio frequency testing instrument (IQ or pole convergence instrument) and the like in a manual mode for radio frequency calibration, observing a printed log file output by the instrument, respectively recording VERIFY power values of 5 prototypes as P1, P2, P3, P4 and P5, and taking an average value S as (P1+ P2+ P3+ P4+ P5)/5. And selecting a prototype with the minimum value (P-S) of the difference Dmin between the power value P of VERIFY and the average value S from five prototypes as an alternative golden plate sample, wherein the difference between P5 and S is assumed to be minimum, namely, the prototype No. 5 is used as the alternative golden plate sample. And disconnecting the onboard antennas of the rest four samples from the test points of the radio frequency link, setting the operation mode of a radio frequency test instrument to perform VERIFY only without CAL, observing a printed log file, recording VERIFY power values Ps1, Ps2, Ps3 and Ps4 again, performing difference values with P1, P2, P3 and P4 respectively to obtain D1, D2, D3 and D4, and taking the average value Si (D1+ D2+ D3+ D4)/4 as the antenna loss.
And secondly, checking the accuracy of the alternative golden board, using the alternative golden board, adopting a primary package sending mode, opening a testing instrument, setting a line loss value as the measured Si + actual line attenuation value, starting a module package sending mode, observing whether the output power is consistent with the P5 power value or not, judging that the golden board is successfully manufactured if the error is controlled within 0.5dBm, recording various numerical values of secondary data check after the board finishes calibrating data, and uploading the numerical values to a cloud end until the golden board manufacturing process is finished.
2) Parameter cloud entry
And after the gold plate is manufactured, the power emitted in the specified mode is constant, and the target power is obtained.
Parameters such as target power, radio frequency test limit value and the like of the golden board are uploaded to the cloud.
3) Golden plate calibration
This step is used to calculate the line loss between the test instrument and the rf line. The upper computer obtains target power of the golden board, a limit value of a radio frequency test and the like from the cloud, then starts an instrument to calibrate the golden board, obtains line loss of a current radio frequency port radio frequency line and a measuring instrument, and finally uploads the line loss to the cloud. See in particular fig. 3.
The line loss file comprises a line loss file name, a product model, an instrument number, a golden board number, a line loss date and a test period of the data, and if the factory calibrates every 12 hours, the tool stops using after detecting that the time exceeds 12 hours.
According to the method, the golden board is used for calculating the line loss data of the test environment, then the line loss data are uploaded to the cloud end by means of the upper computer, and the data are pulled from the cloud end for use during formal production, so that manual modification of the data is avoided, and meanwhile, the life cycle of the data is also included.
4) Radio frequency testing
This step is used to perform radio frequency testing on the module. And the upper computer acquires the radio frequency test limit value and the line loss file uploaded in the golden board calibration link from the cloud, then starts an instrument to perform radio frequency test, saves one part of test result in a local log, and uploads the part of test result to the cloud. See in particular fig. 4.
In the radio frequency test, the tested test items, the test equipment, the maintainers of the information cloud data, the maintenance time and the like are interacted with the cloud by means of the upper computer.
5) Analysis of test results
The step is used for data statistics of the test result after the radio frequency test is finished. And the data is visualized by capturing effective values in the test process.
The results of the tests are shown in fig. 5-6. In FIG. 5, the tested EVM is maintained between-29 db and-33 db, while the national standard range of EVM is-27 db to-45 db; fig. 6 uses different statistical methods to count EVM, such as normal distribution, calculating variance, etc.
The above contents show that the performance parameter indexes of the module tested by the method of the invention are all within the given range of the country, and meet the relevant requirements.
As shown in fig. 7, an embodiment of the present invention further provides a radio frequency testing system, including:
the system comprises a preparation unit, a processing unit and a processing unit, wherein the preparation unit is used for pulling parameters corresponding to the golden boards from a cloud terminal to carry out line loss calibration when the golden boards calibrate line loss, and generating line loss files to be uploaded to the cloud terminal to be used as records of the line loss of the environment;
and the test unit is used for pulling the line loss file and the limit value file from the cloud after the radio frequency test formally starts, and carrying out the radio frequency test according to the line loss file and the limit value file.
In the radio frequency test system, in the preparation unit, corresponding parameters of a cloud terminal are selected when the gold plate calibrates the line loss, and a generated line loss file is uploaded to the cloud terminal to be used as a record of the line loss of the environment; in the test unit, after the radio frequency test formally starts, the line loss file and the limit value file are pulled from the cloud, and the radio frequency test is carried out according to the line loss file and the limit value file. This process has avoided on the production line to using gold plate calibration line to decrease and the repeated work of the file configuration of radio frequency test, at every turn as long as draw the file from the high in the clouds can to the file of in-process does not support local modification, has guaranteed the rigor of radio frequency test and the security of data, helps the mill to produce the line and reduces time cost and cost of labor, has guaranteed the performance of batch module radio frequency test, thereby the flow that the line was produced to messenger's mill is more normal, reasonable, effective.
As shown in fig. 8, in some possible embodiments, the system further includes an uploading unit, configured to upload the parameters of the golden board for calibrating the line loss and the limit values for the radio frequency test to the cloud.
In some possible embodiments, the system further includes an association unit, configured to associate the golden board with corresponding golden board data in the cloud database.
The data of the corresponding golden board in the cloud database comprises a worksheet number, a model number, SN, MAC, golden board number, golden board version, line loss date, instrument number and standard parameter version. The golden board is associated with corresponding golden board data in the cloud database through the golden board number, relevant parameters such as the model number of the golden board are indicated, the relevant data are convenient to search, and wrong data are prevented from being drawn from the cloud by different golden boards.
In some possible embodiments, the system further includes an association unit, configured to associate the golden board with corresponding golden board data in the cloud database.
Based on the above radio frequency testing method, an embodiment of the present invention further provides a storage medium for storing executable instructions, where the executable instructions, when executed, implement the steps of the above radio frequency testing method.
Based on this understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored on an electronic device executing the methods of the various implementation scenarios of the present invention. Other modules may also be included in the storage medium.
In addition, it should be noted that, in the different embodiments of the present invention, the technical features in some possible implementations may be arbitrarily combined to form different embodiments. Here, the description is omitted.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, or a virtual connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The flowchart and block diagrams in the figures of the present invention illustrate the architecture, functionality, and operation of possible implementations of systems, methods and apparatus according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In the description of the present specification, the description of the terms "some possible implementations" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A radio frequency test method is characterized by comprising the following steps:
when the golden board is used for calibrating the line loss, parameters corresponding to the golden board are pulled from the cloud end to calibrate the line loss, and a line loss file is generated and uploaded to the cloud end to serve as a record of the line loss of the environment;
after the radio frequency test formally starts, pulling the line loss file and the limit value file from the cloud end, and carrying out the radio frequency test according to the line loss file and the limit value file;
uploading the parameters of the golden board with the golden board calibration line loss and the limit value used by the radio frequency test to a cloud terminal;
and the golden board is associated with corresponding golden board data in the cloud database through the golden board number.
2. The radio frequency test method according to claim 1, wherein the line loss is a line loss between the test instrument and a current radio frequency line;
the line loss file comprises a line loss file name, a product model, an instrument number, a golden board number, a line loss date and a test period of data.
3. The radio frequency test method according to any of claims 1-2, wherein the results of the radio frequency test are stored locally and/or in a cloud.
4. A radio frequency test method as claimed in claim 3, characterized in that valid values during the test are captured to obtain a visualized data result.
5. A radio frequency test system, comprising:
the system comprises a preparation unit, a processing unit and a processing unit, wherein the preparation unit is used for pulling parameters corresponding to the golden boards from a cloud end to carry out line loss calibration when the golden boards calibrate line loss, and generating line loss files to be uploaded to the cloud end to be used as records of the line loss of the environment;
the test unit is used for pulling the line loss file and the limit value file from the cloud after the radio frequency test formally starts, and carrying out the radio frequency test according to the line loss file and the limit value file;
the uploading unit is used for uploading the parameters of the golden board with the golden board calibration line loss and the limit value used by the radio frequency test to the cloud;
and the association unit is used for associating the golden board with corresponding golden board data in the cloud database.
6. A storage medium storing executable instructions which, when executed, implement the steps of the radio frequency testing method of any one of claims 1 to 4.
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| CN112946405A (en) * | 2021-03-23 | 2021-06-11 | 深圳市广和通无线股份有限公司 | Radio frequency test method and related device |
| CN114337858A (en) * | 2022-01-27 | 2022-04-12 | 深圳市有方科技股份有限公司 | Parameter processing method and device |
| CN114584228B (en) * | 2022-05-05 | 2022-07-08 | 成都爱旗科技有限公司 | Wifi production test calibration system and method and electronic equipment |
| CN114884590B (en) * | 2022-07-07 | 2022-09-27 | 成都万创科技股份有限公司 | Wireless module calibration parameter extraction method and device |
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| CN105301377A (en) * | 2014-06-19 | 2016-02-03 | 联想移动通信科技有限公司 | Method, apparatus and system for measuring RF line loss |
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| CN107202924A (en) * | 2017-05-23 | 2017-09-26 | 深圳天珑无线科技有限公司 | A kind of terminal test method, equipment and system |
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