Antenna performance testing device, method, equipment and computer-readable storage medium

Abstract

The present invention discloses an antenna performance test device, method, equipment and computer-readable storage medium, wherein, in a preset coupling environment spot check mode, by controlling a radio frequency switching switch, the coupling gold machine and multiple prototypes are sequentially spot checked, so that the comprehensive tester collects multiple groups of line loss prototype data, and generates line loss files under the current environment according to the multiple groups of line loss prototype data; in a preset normal test mode, the coupling gold machine and the normal machine to be tested are spot checked in combination with the line loss file, so that the comprehensive tester collects the test data of the current machine, and outputs the test result of the current machine according to the test data. The present invention realizes a more efficient and accurate antenna performance test scheme, reducing the manpower and material costs and the product mismeasurement rate.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to an antenna performance testing device, method, equipment and computer-readable storage medium. Background Art

[0002] In the prior art, wireless communication products such as wireless WIFI generally include antennas. In the production test stage, the wireless performance test of the whole machine needs to be done to ensure that the wireless performance of the whole machine of the mass-delivered products meets the consistency requirements. At present, the WIFI whole machine antenna test solution has the following problems in actual mass production testing: First, the test environment requires a large shielding box. Specifically, the test environment coupling line loss and normal batch testing through the receiving solution have high requirements for the environment and require a large shielding box. The test line space is high, which is difficult for employees to operate and affects the test efficiency. Second, only the line loss tested by a gold machine is used for batch prototype testing, which cannot solve the mismeasurement caused by the difference between antennas of different batches or different suppliers. Third, the receiving test solution can only be tested through the RSSI (Received Signal Strength Indication) indicator or RX (Receive There are few test indicators and it is difficult to intercept antenna abnormalities. Fourth, there is no solution to the problem of mutual coupling interference among multiple coupling boards of multi-antenna products. Specifically, a power splitter is generally used when testing multiple coupling boards of multi-antenna products. However, the power splitter is a one-to-many passive device and cannot control which channel is output. In actual testing, multiple coupling boards will interfere with each other, and the signals can enter the comprehensive tester through the power splitter, resulting in inaccurate test results of the comprehensive tester, affecting production test efficiency and posing a risk of defective products flowing out.

[0003] Therefore, how to improve the efficiency and accuracy of antenna performance testing and reduce manpower and material costs has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide an antenna performance testing device, method, equipment and computer-readable storage medium to solve the current problems of low efficiency and accuracy of antenna performance testing and high manpower and material costs.

[0005] The present invention proposes an antenna performance test device, which includes a test tool, a test platform connected to the test tool, a radio frequency switch, and a comprehensive tester. The test platform includes a plurality of fixtures, and the fixtures are used to connect a coupling gold machine, a plurality of prototypes, and a normal machine to be tested, wherein:

[0006] The test tool is used to control the RF switch in a preset coupling environment spot check mode to sequentially check the coupling gold machine and the multiple prototypes, so that the comprehensive tester can collect multiple groups of line loss prototype data, and generate a line loss file in the current environment according to the multiple groups of line loss prototype data;

[0007] The testing tool is also used to, under a preset normal testing mode, spot check the coupled gold machine and the normal machine to be tested in combination with the line loss file, so that the comprehensive tester can collect the test data of the current machine and output the test result of the current machine according to the test data.

[0008] Optionally, the coupling gold machine is placed in the fixture of the test platform so that the test tool establishes a communication link with the coupling gold machine;

[0009] The test tool is further used to send a first instruction to the coupling machine, wherein the first instruction is used to sequentially control each antenna to be tested of the coupling machine to transmit a signal according to a preset mode, rate, bandwidth and channel;

[0010] The test tool is further used to send a second instruction to the radio frequency switch, wherein the second instruction is used to control the radio frequency switch to sequentially open the channels corresponding to the current test antenna and close other channels;

[0011] The test tool is further used to send a third instruction to the comprehensive tester, wherein the third instruction is used to control the comprehensive tester to obtain the power, mode, rate, bandwidth and target power value of the coupling gold machine;

[0012] The test tool is also used to calculate the coupling line loss value of the coupling gold machine according to the power, mode, rate, bandwidth and target power value of the coupling gold machine, and write it into the line loss file.

[0013] Optionally, the multiple prototypes are complete machines from different batches and different suppliers, and the multiple prototypes are tested in sequence, and a preset number of data meeting a preset threshold are screened according to the test results;

[0014] The test tool is also used to send a combination instruction to the normal machine to be tested, the RF switch and the comprehensive tester of the test platform, wherein the combination instruction is used to sequentially traverse the power values ​​obtained by testing multiple prototypes under preset modes, rates, bandwidths and channels;

[0015] The testing tool is also used to use the data whose power value meets the first preset condition as the line loss sample data, and write multiple groups of the line loss sample data into the line loss file.

[0016] Optionally, the test tool is further used to average all line loss values ​​in the line loss file as the coupled line loss of the current batch test.

[0017] Optionally, the normal machine to be tested is placed in the fixture of the test platform so that the test tool establishes a communication link with the normal machine to be tested;

[0018] The test tool is further used to send the combined instruction to the normal machine to be tested, the radio frequency switch and the comprehensive tester of the test platform, wherein the combined instruction is used to obtain the test values ​​of various indicators of the normal machine to be tested;

[0019] The testing tool is also used to determine whether the test value meets a second preset condition. If so, the normal machine to be tested is determined to be a good product; otherwise, the normal machine to be tested is determined to be a bad product.

[0020] The present invention also proposes an antenna performance testing method, the method comprising:

[0021] In the preset coupling environment inspection mode, the coupled gold machine and multiple prototypes are inspected in turn by controlling the RF switch, and the line loss file in the current environment is generated based on the collected multiple sets of line loss prototype data;

[0022] In the preset normal test mode, the coupled gold machine and the normal machine to be tested are inspected in combination with the line loss file, and the test result of the current machine is output according to the collected test data.

[0023] Optionally, the controlling of the radio frequency switch to sequentially check the coupled gold machine and multiple prototypes, and generating a line loss file in the current environment according to the collected multiple sets of line loss prototype data, specifically includes:

[0024] Sending a first instruction to the coupling machine, wherein the first instruction is used to sequentially control each antenna to be tested of the coupling machine to transmit a signal according to a preset mode, rate, bandwidth and channel;

[0025] Sending a second instruction to the radio frequency switch, wherein the second instruction is used to control the radio frequency switch to sequentially open the channels corresponding to the current test antenna and close other channels;

[0026] Sending a third instruction to the comprehensive tester, wherein the third instruction is used to control the comprehensive tester to obtain the power, mode, rate, bandwidth and target power value of the coupling gold machine;

[0027] According to the power, mode, rate, bandwidth and target power value of the coupling gold machine, the coupling line loss value of the coupling gold machine is calculated and written into the line loss file;

[0028] Sending a combined instruction to the coupling machine, the RF switch and the comprehensive tester of the test platform, wherein the combined instruction is used to sequentially traverse the power values ​​obtained by testing multiple prototypes under a preset mode, rate, bandwidth and channel;

[0029] The data whose power value meets the first preset condition is used as the line loss sample data, and multiple groups of the line loss sample data are written into the line loss file;

[0030] The average of all line loss values ​​in the line loss file is taken as the coupled line loss of the current batch test.

[0031] Optionally, the step of spot checking the coupled gold machine and the normal machine to be tested in combination with the line loss file, and outputting the test result of the current machine according to the collected test data, specifically includes:

[0032] Sending the combined instruction to the normal machine to be tested, the radio frequency switch and the comprehensive tester of the test platform, wherein the combined instruction is used to obtain test values ​​of various indicators of the normal machine to be tested;

[0033] It is determined whether the test value satisfies a second preset condition. If so, it is determined that the normal machine to be tested is a good product. Otherwise, it is determined that the normal machine to be tested is a bad product.

[0034] The present invention also proposes an antenna performance testing device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps of the antenna performance testing method as described in any one of the above items when executed by the processor.

[0035] The present invention also proposes a computer-readable storage medium, on which an antenna performance test program is stored. When the antenna performance test program is executed by a processor, the steps of the antenna performance test method as described in any one of the above items are implemented.

[0036] The antenna performance test device, method, equipment and computer-readable storage medium of the present invention are implemented by controlling the RF switching switch in the preset coupling environment spot check mode to sequentially spot check the coupling gold machine and multiple prototypes, so that the comprehensive tester can collect multiple groups of line loss prototype data, and generate line loss files under the current environment according to the multiple groups of line loss prototype data; in the preset normal test mode, the coupling gold machine and the normal machine to be tested are spot checked in combination with the line loss file, so that the comprehensive tester can collect the test data of the current machine, and output the test result of the current machine according to the test data. The present invention realizes a more efficient and accurate antenna performance test solution, reducing the manpower and material costs and product mismeasurement rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0038] Figure 1 It is a module block diagram of the antenna performance testing device of the present invention;

[0039] Figure 2 is a first flow chart of the antenna performance testing method of the present invention;

[0040] Figure 3 It is a working principle diagram of the antenna performance testing method of the present invention;

[0041] Figure 4 This is the second flow chart of the antenna performance testing method of the present invention. DETAILED DESCRIPTION

[0042] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0043] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0044] Figure 1 This embodiment provides an antenna performance test device, which includes a test tool 10, a test platform 20 connected to the test tool 10, a radio frequency switch 30, and a comprehensive tester 40. The test platform 20 includes a plurality of fixtures 21, and the fixtures 21 are used to connect a coupling gold machine 23, a plurality of prototypes 22, and a normal machine to be tested 24, wherein:

[0045] The test tool 10 is used to sequentially check the coupling gold machine 23 and the plurality of the prototypes 22 by controlling the RF switching switch 30 in a preset coupling environment spot check mode, so that the comprehensive tester 40 collects a plurality of groups of line loss prototype 22 data, and generates a line loss file in the current environment according to the plurality of groups of line loss prototype 22 data;

[0046] The test tool 10 is also used to inspect the coupling gold machine 23 and the normal machine to be tested 24 in combination with the line loss file under a preset normal test mode, so that the comprehensive tester 40 can collect the test data of the current machine and output the test result of the current machine according to the test data.

[0047] In this embodiment, among the multiple fixtures included in the test platform 20, each fixture includes multiple coupling plates, and each antenna corresponds to a coupling plate. Specifically, Figure 3The four small squares on each fixture shown represent coupling plates, which are RF devices corresponding to the antennas on the fixture. Each coupling plate is connected to the RF switching switch 30 via a RF line.

[0048] In this embodiment, a line loss measurement optimization solution is designed through a gold machine and multiple prototypes 22 to make the line loss test more accurate. Multiple prototypes 22 are randomly used to assist in the line loss test, which can absorb the differences in antenna materials from different batches of production lines and different manufacturers, thereby making the production line pass rate higher and the test error smaller.

[0049] In this embodiment, a radio frequency switching switch 30 device is introduced, and the radio frequency switching switch 30 is used to realize parallel testing of multi-antenna products. In each test, only the channel of the antenna to be tested is opened, and other channels are closed, thereby improving the accuracy of the test value and eliminating mutual interference between multiple antennas. Based on this, this embodiment removes the large shielding box required by the traditional solution, effectively saving the line space occupied by the large shielding box, reducing equipment investment and the operation actions of employees to open and close the shielding box, and greatly improving the test efficiency.

[0050] It can be seen that in this embodiment, by removing the large shielding box, it is possible to integrate the testing of other machine functions while measuring the wireless performance indicators from a design perspective. Since the test environment occupies a small area, the whole machine test environment can be further merged, the test lines, test manpower and test time can be streamlined, and the manufacturing cost can be saved to the greatest extent.

[0051] The beneficial effect of this embodiment is that, by controlling the RF switching switch 30 in the preset coupling environment spot inspection mode, the coupling gold machine 23 and the multiple prototypes 22 are sequentially inspected, so that the comprehensive tester 40 collects multiple groups of line loss prototype 22 data, and generates line loss files under the current environment according to the multiple groups of line loss prototype 22 data; in the preset normal test mode, the coupling gold machine 23 and the normal machine to be tested 24 are spot inspected in combination with the line loss file, so that the comprehensive tester 40 collects the test data of the current machine, and outputs the test result of the current machine according to the test data. A more efficient and accurate antenna performance test solution is realized, reducing the manpower and material costs and product mismeasurement rate.

[0052] In this embodiment, the coupling machine 23 is placed in the fixture 21 of the test platform 20 so that the test tool 10 establishes a communication link with the coupling machine 23; the test tool 10 is also used to send a first instruction to the coupling machine 23, the first instruction is used to sequentially control each antenna to be tested of the coupling machine 23 to transmit a signal according to a preset mode, rate, bandwidth and channel; the test tool 10 is also used to send a second instruction to the RF switching switch 30, the second instruction is used to control the RF switching switch 30 to sequentially open the channel corresponding to the current test antenna and close other channels; the test tool 10 is also used to send a third instruction to the comprehensive tester 40, the third instruction is used to control the comprehensive tester 40 to obtain the power, mode, rate, bandwidth and target power value of the coupling machine 23; the test tool 10 is also used to calculate the coupling line loss value of the coupling machine 23 according to the power, mode, rate, bandwidth and target power value of the coupling machine 23, and write it into the line loss file. Specifically, first, prepare a gold machine that has undergone OTA wireless testing, and the performance indicators of each antenna of the machine meet the regulatory requirements; then, build a test environment, including a comprehensive tester 40, a test platform 20, RF wires, an RF switching switch 30, a test fixture 21, and a test tool 10 (i.e., a test computer). Based on this, place the gold machine in the test fixture 21, communicate with the gold machine through the test computer, send instructions to the gold machine through the test tool 10, and control each antenna to be tested of the gold machine to transmit signals according to the set mode, rate, bandwidth and channel in turn, control the RF switching switch 30 to open the corresponding channel of the antenna to be tested in turn, and close other channels, control the comprehensive tester 40 to obtain the corresponding antenna power P1 of the gold machine, obtain the mode, rate, bandwidth and channel preset target power value P0 set for the antenna to be tested, calculate the coupling line loss value L0 of each antenna, and write it into the line loss file **.txt.

[0053] In this embodiment, the multiple prototypes 22 are complete machines from different batches and different suppliers, and the multiple prototypes 22 are all placed in the fixture 21 of the test platform 20, so that the test tool 10 establishes a communication link with the multiple prototypes 22; the test tool 10 is also used to send a combination instruction to the coupling gold machine 23, multiple prototypes 22, the normal machine to be tested 24, the RF switching switch 30, and the comprehensive tester 40, and the combination instruction is used to sequentially traverse the power values ​​obtained by the multiple prototypes 22 under the preset mode, rate, bandwidth and channel; the test tool 10 is also used to use the data whose power value meets the first preset condition as the line loss prototype 22 data, and write multiple groups of line loss prototype 22 data into the line loss file. The test tool 10 is also used to average all the line loss values ​​in the line loss file as the coupling line loss of the current batch test. For example, 10 complete antennas from different batches and different suppliers are randomly selected, and each prototype 22 is placed on the fixture 21. The test tool 10 is run to perform the test. Through the test platform 20, the RF switching switch 30 and the comprehensive tester 40, the power values ​​of the fixed channel, mode, rate, and bandwidth tests of each antenna are traversed in turn; further, if the test power value P2 is within ±2dBm of the target power P0, the data of the prototype 22 can be used, and the test line loss L1 of this prototype 22 is recorded. If the test power exceeds the target power ±2dBm range, the prototype 22 cannot be used as a line loss measurement prototype 22; based on this, the line loss data L1, L2, ..., L10 of the 10 prototypes 22 are tested in turn, and L0~L10 are statistically calculated (for example, taking the average value) as the coupled line loss of the final batch test.

[0054] In this embodiment, the normal machine under test 24 is placed in the fixture 21 of the test platform 20 so that the test tool 10 establishes a communication link with the normal machine under test 24; the test tool 10 is also used to send the combination instruction to the normal machine under test 2420 of the test platform, the RF switching switch 30 and the comprehensive tester 40, and the combination instruction is used to obtain the test values ​​of various indicators of the normal machine under test 24; the test tool 10 is also used to determine whether the test value meets the second preset condition. If so, the normal machine under test 24 is determined to be a good product, otherwise, the normal machine under test 24 is determined to be a defective product. Specifically: first, when switching to batch testing of normal machines, the normal machines are placed in the fixture 21; then, the test tool 10 is run to control each antenna under test of the normal machine under test 24 to transmit signals according to the set mode, rate, bandwidth, and channel, and the RF switching switch 30 is controlled to open the channel of the corresponding antenna; finally, the comprehensive tester 40 measures the power, frequency deviation, EVM (Error Vector Magnitude) and other indicators of the antenna. For example, if the test power is within ±2dBm of the target power value P0, the frequency deviation is in [-10, 10ppm], and the EVM is less than the protocol threshold, the current machine is determined to be a good product.

[0055] It can be seen that in this embodiment, a full-process automatic test and inspection environment line loss and batch test solution is proposed. Through the transmission function test of the overall design sample to be tested, the line loss and batch test are measured, and according to the trial production verification data, the large shielding box is removed, and the test CPK (Process capability index)>1.33 is tested to meet the batch testing requirements; at the same time, the automatic measurement of the line loss environment of this embodiment not only relies on the coupling gold machine 23, but also randomly selects a plurality of complete machines of antennas from different batches and different suppliers in production, and generates the final line loss based on the test data of a coupling gold machine 23 plus a plurality of production prototypes 22, thereby ensuring that the coupling line loss data is more accurate, and at the same time, effectively avoiding test misjudgments caused by differences between different batches and different antenna manufacturers.

[0056] Furthermore, in this embodiment, from measuring line loss to normal batch testing, all are done through TX packet sending, that is, the product to be tested sends a signal, and the comprehensive tester 40 collects the data for testing. More indicators are obtained from the test, among which indicators such as power, EVM, frequency deviation and MASK are more comprehensive, effectively intercepting various abnormalities of the coupling scheme antenna.

[0057] Furthermore, the present embodiment introduces an RF switching switch 30 to replace the traditional power divider. The RF channel of the RF switching switch 30 adopts a multi-input and one-output form, and each antenna of the product to be tested corresponds to the test platform 20 and is connected to the corresponding RF switch channel. Based on this, by controlling the antennas of the sample to be tested to transmit signals in sequence, the comprehensive tester 40 only receives the signal tested by the corresponding antenna test platform 20 through the RF switching switch 30, thereby eliminating the erroneous measurement caused by mutual interference between multiple test platforms 20 of the multi-antenna product and avoiding the outflow of abnormal antenna problems.

[0058] Figure 2 The first flow chart of the antenna performance test method of the present invention is shown in FIG. 1. Based on the above embodiment, the present invention further proposes an antenna performance test method, which includes:

[0059] S1. In the preset coupling environment inspection mode, the coupled gold machine and multiple prototypes are inspected in turn by controlling the RF switch, and the line loss file in the current environment is generated according to the collected multiple sets of line loss prototype data;

[0060] S2. In a preset normal test mode, the coupled gold machine and the normal machine to be tested are inspected in combination with the line loss file, and the test result of the current machine is output according to the collected test data.

[0061] Please refer to Figure 3 , the figure shows the working principle of the test environment to which the method is applicable. Specifically, the test environment includes a test tool, a test platform connected to the test tool, a radio frequency switching switch, and a comprehensive tester. The test platform includes multiple fixtures, and the fixtures are used to connect the coupled gold machine, multiple prototypes, and a normal machine to be tested. Among them: the test tool is used to, in a preset coupling environment spot inspection mode, control the radio frequency switching switch to sequentially inspect the coupled gold machine and multiple prototypes, so that the comprehensive tester can collect multiple groups of line loss prototype data, and generate a line loss file in the current environment according to the multiple groups of line loss prototype data; the test tool is also used to, in a preset normal test mode, inspect the coupled gold machine and the normal machine to be tested in combination with the line loss file, so that the comprehensive tester can collect the test data of the current machine, and output the test result of the current machine according to the test data.

[0062] like Figure 3 As shown, the test platform of this embodiment includes multiple fixtures, each fixture includes multiple coupling plates, and each antenna corresponds to a coupling plate. Specifically, Figure 3 The four small squares on each fixture represent coupling plates, which are RF devices corresponding to the antennas on the fixture. Each coupling plate is connected to an RF switching switch via an RF line.

[0063] In this embodiment, the method of controlling the RF switching switch to sequentially check the coupling machine and multiple prototypes, and generating a line loss file in the current environment according to the collected multiple sets of line loss prototype data, specifically includes: sending a first instruction to the coupling machine, the first instruction is used to sequentially control each antenna to be tested of the coupling machine to transmit signals according to a preset mode, rate, bandwidth and channel; sending a second instruction to the RF switching switch, the second instruction is used to control the RF switching switch to sequentially open the channel corresponding to the current test antenna and close other channels; sending a third instruction to the comprehensive tester, the third instruction is used to control the comprehensive tester to obtain the power, mode, rate, bandwidth and target power value; according to the power, mode, rate, bandwidth and target power value of the coupling gold machine, the coupling line loss value of the coupling gold machine is calculated and written into the line loss file; a combined instruction is sent to multiple line loss inspection prototypes of the test platform, the RF switching switch and the comprehensive tester, and the combined instruction is used to sequentially traverse the power values ​​obtained by testing multiple prototypes under preset modes, rates, bandwidths and channels; the data whose power values ​​meet the first preset conditions are used as the line loss prototype data, and multiple groups of the line loss prototype data are written into the line loss file; the average of all line loss values ​​in the line loss file is taken as the coupling line loss of the current batch test.

[0064] In this embodiment, the above-mentioned step of combining the line loss file to check the coupling gold machine and the normal machine to be tested, and outputting the test result of the current machine according to the collected test data, specifically includes: sending the combined instruction to the normal machine to be tested on the test platform, the RF switching switch and the comprehensive tester, and the combined instruction is used to obtain the test values ​​of various indicators of the normal machine to be tested; judging whether the test value meets the second preset condition, if so, determining that the normal machine to be tested is a good product, otherwise, determining that the normal machine to be tested is a bad product.

[0065] In this embodiment, first, the coupling environment inspection mode is turned on to execute the production of the coupling gold machine and the selection of multiple line loss prototypes. Specifically, a coupling gold machine is produced in combination with the laboratory RF and antenna. After strict conduction testing and antenna OTA testing, the selected machine with ideal wireless performance is determined as the coupling gold machine, which can be used as the gold machine for batch coupling test environment inspection and calibration of the production line; based on the current production status, the production line selects multiple complete machines assembled with antennas from different suppliers and different batches to assist in line loss inspection; the coupling gold machine is placed on the fixture to run the test tool line loss test mode.

[0066] Then, in the above-mentioned coupling environment line loss inspection mode, set the antenna and frequency to be tested through the test tool. For example, Ant_txNum\Ant_txNum_b is used to set the number of 2G and 5G antennas and the test channel (frequency), which is used to test 2 antennas in the 2G frequency band and 3 antennas in the 5G frequency band, and measure through TX transmission. For another example, for the 2G and 5G coupling test, g_loss_ch1 / a_loss_ch1 is used to set the actual channel to be tested. For another example, the file ManualCableLoss1.txt is used to save the antenna channels and line loss values ​​used in the test, that is, after the setting is completed, the antenna coupling gold machine is placed in the test environment, and the coupling line loss L0 of the gold machine can be automatically tested and automatically saved in the file ManualCableLoss1.txt. The file contains the antenna channels and line loss values ​​used in the test. Similarly, multiple line loss prototypes are placed on the test fixture in turn, and the test tool is used to automatically test the line loss, and L1~L10 are obtained in turn. The prototype data with test values ​​not within ±2dBm are screened out and eliminated. Finally, the average value of the data from a golden machine and multiple line loss prototypes is taken as the final mass production line loss Loss.

[0067] It should be noted that the actual application scenario of the RF switching switch of this embodiment is one-to-four parallel testing. The product to be tested has many antennas, but there is no shielding box in the actual test environment. There is a lot of coupling board data. If a power divider is used for testing, when testing one antenna, the coupling board attached to the coupling board corresponding to the antenna will also receive a signal, which will be received by the comprehensive tester through the power divider, resulting in inaccurate actual test antenna signals and mutual interference between the coupling boards. Therefore, the RF switching switch introduced in this embodiment is precisely to solve the above problems. When the test tool controls a certain antenna of the product to be tested to transmit a signal, it also controls the closing of other channels of the RF switching switch, and only opens the coupling board channel corresponding to the current test antenna. The signals received by other coupling boards cannot enter the comprehensive tester through the RF switching switch. Thus, the mutual interference problem in the multi-antenna parallel test scenario is solved, and the accuracy of the test results is guaranteed. At the same time, after eliminating the above interference, the networking environment of this embodiment does not need to use a large shielding box for shielding, saving line space.

[0068] Finally, in the normal batch test mode, the above prototype is switched to a normal machine to be tested, placed in a test fixture, and powered on to automatically test through a test tool. Optionally, the test result is judged by a preset test tool, and if it meets the established indicators, the normal machine to be tested is determined to be a good product, otherwise, the normal machine to be tested is determined to be a bad product.

[0069] Figure 4 This is the second flow chart of the antenna performance testing method of the present invention. In this embodiment, the specific steps include:

[0070] S10. The laboratory provides a coupling gold machine, the production line selects ten prototypes, sets up the test environment, connects the fixture, RF cable, test platform, RF switch, network cable and computer (i.e., test tool);

[0071] S20, the test tool selects the line loss point calibration mode, and the test tool sets the test mode, channel, bandwidth, rate and target power of all antennas of the product to be tested;

[0072] S30, placing the coupling gold machine in the test fixture and fixing it, and when performing the test, controlling the antenna to be tested to transmit a signal, controlling the corresponding channel of the RF switching switch to be turned on, and closing other channels;

[0073] S40, control the comprehensive tester to collect signals and calculate the current coupling line loss L0; then, replace ten prototypes, perform line loss inspection, and based on the gold machine line loss L0, test and inspect the antenna data of the ten prototypes in turn to see if they meet the threshold requirements;

[0074] S50, the test tool obtains the test index of the prototype. If the test power is within the target ±2dBm range, the frequency deviation is within [-10, 10ppm], and the EVM is less than the protocol threshold, it is determined to meet the threshold requirement. Otherwise, it is determined not to meet the threshold requirement, and the prototype that does not meet the threshold requirement is eliminated, the prototype is re-screened, and the inspection continues;

[0075] S60, recording the line loss data L1, L2, ..., L10 of ten prototypes in sequence, taking the average value of L0-L10 as the coupling line loss of the final batch test;

[0076] S70, the test tool switches to a normal working mode, fixes the batch of machines to be tested on the fixture, and controls the antenna of the machine to be tested to transmit a wireless signal with a fixed mode, channel, bandwidth, and rate, and controls the corresponding channel of the RF switch to be turned on and other channels to be closed;

[0077] S80, the test tool controls the comprehensive tester to collect the corresponding antenna signal, and obtains the Loss by point inspection in the compensation line loss mode. The test tool obtains the final test power, frequency deviation, EVM and MASK indicators of the antenna, and determines whether the above four indicators meet the preset standards. If they meet, the next antenna test of the machine to be tested is executed, and the indicators are obtained and determined according to the above method to determine whether they meet the preset standards. If they do not meet, retest analysis is performed;

[0078] S90. If the retest analysis fails to meet the above preset standards after three times of retest, the machine to be tested is determined to be a defective product. If all antenna index tests meet the above preset standards, the machine to be tested is determined to be a good product and is allowed to flow normally to the next station.

[0079] The beneficial effect of this embodiment is that, by controlling the RF switch in the preset coupling environment spot inspection mode, the coupling gold machine and multiple prototypes are inspected in turn, and the line loss file in the current environment is generated according to the collected multiple sets of line loss prototype data; in the preset normal test mode, the coupling gold machine and the normal machine to be tested are inspected in combination with the line loss file, and the test result of the current machine is output according to the collected test data. A more efficient and accurate antenna performance test solution is realized, which reduces the manpower and material costs and the product mistest rate.

[0080] Based on the above embodiments, the present invention also proposes an antenna performance testing device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps of the antenna performance testing method as described in any one of the above items when executed by the processor.

[0081] It should be noted that the above-mentioned device embodiment and method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, and the technical features in the method embodiment are correspondingly applicable in the device embodiment, which will not be repeated here.

[0082] Based on the above embodiments, the present invention further proposes a computer-readable storage medium, on which an antenna performance test program is stored. When the antenna performance test program is executed by a processor, the steps of the antenna performance test method as described in any one of the above items are implemented.

[0083] It should be noted that the above-mentioned medium embodiment and method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, and the technical features in the method embodiment are correspondingly applicable in the medium embodiment, which will not be repeated here.

[0084] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0085] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0086] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. An antenna performance testing device, characterized in that: The device includes a test tool, a test platform connected to the test tool, a radio frequency switch, and a comprehensive tester. The test platform includes a plurality of fixtures, and the fixtures are used to connect a coupling gold machine, a plurality of prototypes, and a normal machine to be tested, wherein: The test tool is used to control the RF switch in a preset coupling environment spot check mode to sequentially check the coupling gold machine and the multiple prototypes, so that the comprehensive tester can collect multiple groups of line loss prototype data, and generate a line loss file in the current environment according to the multiple groups of line loss prototype data; The testing tool is also used to, under a preset normal testing mode, spot check the coupled gold machine and the normal machine to be tested in combination with the line loss file, so that the comprehensive tester can collect the test data of the current machine and output the test result of the current machine according to the test data.

2. The antenna performance testing device according to claim 1, characterized in that: The coupling gold machine is placed in the fixture of the test platform so that the test tool establishes a communication link with the coupling gold machine; The test tool is further used to send a first instruction to the coupling machine, wherein the first instruction is used to sequentially control each antenna to be tested of the coupling machine to transmit a signal according to a preset mode, rate, bandwidth and channel; The test tool is further used to send a second instruction to the radio frequency switch, wherein the second instruction is used to control the radio frequency switch to sequentially open the channels corresponding to the current test antenna and close other channels; The test tool is further used to send a third instruction to the comprehensive tester, wherein the third instruction is used to control the comprehensive tester to obtain the power, mode, rate, bandwidth and target power value of the coupling gold machine; The test tool is also used to calculate the coupling line loss value of the coupling gold machine according to the power, mode, rate, bandwidth and target power value of the coupling gold machine, and write it into the line loss file.

3. The antenna performance testing device according to claim 2, characterized in that: The multiple prototypes are complete machines from different batches and different suppliers. The multiple prototypes are tested in sequence, and a preset number of data meeting a preset threshold are screened according to the test results; The test tool is also used to send a combination instruction to the test platform, the RF switch and the comprehensive tester, wherein the combination instruction is used to sequentially traverse the power values ​​obtained by testing multiple prototypes under preset modes, rates, bandwidths and channels; The testing tool is also used to use the data whose power value meets the first preset condition as the line loss sample data, and write multiple groups of the line loss sample data into the line loss file.

4. The antenna performance testing device according to claim 3, characterized in that: The test tool is also used to average all line loss values ​​in the line loss file as the coupled line loss of the current batch test.

5. The antenna performance testing device according to claim 4, characterized in that: The normal machine to be tested is placed in the fixture of the test platform so that the test tool establishes a communication link with the normal machine to be tested; The test tool is further used to send the combined instruction to the normal machine to be tested, the radio frequency switch and the comprehensive tester of the test platform, wherein the combined instruction is used to obtain the test values ​​of various indicators of the normal machine to be tested; The testing tool is also used to determine whether the test value meets a second preset condition. If so, the normal machine to be tested is determined to be a good product; otherwise, the normal machine to be tested is determined to be a bad product.

6. An antenna performance testing method, characterized in that: The method comprises: In the preset coupling environment inspection mode, the coupled gold machine and multiple prototypes are inspected in turn by controlling the RF switch, and the line loss file in the current environment is generated based on the collected multiple sets of line loss prototype data; In the preset normal test mode, the coupled gold machine and the normal machine to be tested are inspected in combination with the line loss file, and the test result of the current machine is output according to the collected test data.

7. The antenna performance testing method according to claim 6, characterized in that: The method controls the RF switch to sequentially check the coupled gold machine and multiple prototypes, and generates a line loss file in the current environment according to the collected multiple sets of line loss prototype data, specifically including: Sending a first instruction to the coupling machine, wherein the first instruction is used to sequentially control each antenna to be tested of the coupling machine to transmit a signal according to a preset mode, rate, bandwidth and channel; Sending a second instruction to the radio frequency switch, wherein the second instruction is used to control the radio frequency switch to sequentially open the channels corresponding to the current test antenna and close other channels; Sending a third instruction to the comprehensive tester, wherein the third instruction is used to control the comprehensive tester to obtain the power, mode, rate, bandwidth and target power value of the coupling gold machine; According to the power, mode, rate, bandwidth and target power value of the coupling gold machine, the coupling line loss value of the coupling gold machine is calculated and written into the line loss file; Sending a combined instruction to the coupling machine, the RF switch and the comprehensive tester of the test platform, wherein the combined instruction is used to sequentially traverse the power values ​​obtained by testing multiple prototypes under a preset mode, rate, bandwidth and channel; The data whose power value meets the first preset condition is used as the line loss sample data, and multiple groups of the line loss sample data are written into the line loss file; The average of all line loss values ​​in the line loss file is taken as the coupled line loss of the current batch test.

8. The antenna performance testing method according to claim 7, characterized in that: The step of spot checking the coupled gold machine and the normal machine to be tested in combination with the line loss file, and outputting the test result of the current machine according to the collected test data, specifically includes: Sending the combined instruction to the normal machine to be tested, the radio frequency switch and the comprehensive tester of the test platform, wherein the combined instruction is used to obtain test values ​​of various indicators of the normal machine to be tested; It is determined whether the test value satisfies a second preset condition. If so, it is determined that the normal machine to be tested is a good product. Otherwise, it is determined that the normal machine to be tested is a bad product. 9.An antenna performance test device, characterized in that: The device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the antenna performance testing method according to any one of claims 6 to 8 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores an antenna performance test program, and when the antenna performance test program is executed by the processor, the steps of the antenna performance test method according to any one of claims 6 to 8 are implemented.

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