CN115499070A - Wireless module testing system and method - Google Patents
Wireless module testing system and method Download PDFInfo
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Abstract
The invention relates to the technical field of detection devices, in particular to a wireless module testing system and a wireless module testing method, which comprise a comprehensive tester, a router, a main control device, a shielding box and a clamp arranged in the shielding box; the master control device is connected with the comprehensive tester through the router, the master control device is used for running automatic test software to control the comprehensive tester to generate test signals, and the clamp is used for clamping and fixing the wireless module; the clamp leads out an antenna terminal of the wireless module through a radio frequency cable and then is connected with a radio frequency interface of the shielding box, and the radio frequency interface of the shielding box is connected with the comprehensive tester and used for receiving test signals from the comprehensive tester; the clamp is connected with a USB interface of the shielding box after leading out the USB terminal of the wireless module through a USB wire, and the USB interface of the shielding box is connected with the main control device and used for receiving a parameter configuration instruction from the main control device. The stability of signals in the test process can be guaranteed, and the working efficiency of testers can be improved due to the convenience of clamp operation.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to a wireless module testing system and a wireless module testing method.
Background
With the rapid increase of various wireless communication application scenes such as 4G LTE, 5G and the like, wireless modules are increasingly installed in mobile terminals such as mobile phones and tablets. In order to ensure the performance of the wireless module and improve the first pass rate of production test and user experience, the testing device and the method aiming at the specific wireless communication module are more and more widely applied to the links of large-scale production and testing so as to improve the consistency of the production efficiency, the testing efficiency and the product performance. At present, most of test means used in the mass production process of mobile terminals such as mobile phones and tablets are function test APP or performance test is carried out by adopting a tool, and at this stage, a wireless module is assembled into complete machines such as mobile phones and tablets in a welding mode, on one hand, the module which fails in the complete machine test needs to be disassembled again for maintenance, and then assembled for secondary test; on the other hand, the existing wireless module testing device needs manual participation in the testing and report generating process, and has high requirements on the technical level and proficiency of testers; in addition, all the transceiving channels of the multichannel transceiving module cannot be tested simultaneously, and the testing efficiency is low.
Disclosure of Invention
The invention aims to solve the problem that in the prior art, if the test fails after the wireless module is assembled into a complete machine in a welding mode, the module needs to be disassembled again for maintenance, and provides a wireless module testing system and a wireless module testing method, which can be used for independently testing the wireless module before the wireless module is assembled into the complete machine.
In order to achieve the above purpose, the invention provides the following technical scheme:
a wireless module testing system comprises a comprehensive tester, a router, a master control device, a shielding box and a clamp arranged in the shielding box; the master control device is connected with the comprehensive tester through the router, the master control device is used for running automatic test software to control the comprehensive tester to generate test signals, and the clamp is used for clamping and fixing the wireless module; the antenna terminal of the wireless module is connected to one end of a radio frequency interface of the shielding box through a radio frequency cable on the clamp, and the other end of the radio frequency interface of the shielding box is connected with the comprehensive tester and used for receiving test signals from the comprehensive tester; the fixture is connected with a USB interface of the shielding box after leading out a USB terminal of the wireless module through a USB wire, and the USB interface of the shielding box is connected with the main control device and used for receiving a parameter configuration instruction from the main control device.
Further, the clamp comprises a handle fixing plate, a handle, a base, a guide rod, a support plate supporting plate, a support plate, a power switch, a top plate and a pressing plate;
the handle fixing plate is fixedly connected with the base, the handle is installed on the handle fixing plate, the pressing plate is fixed on the handle, and the pressing plate moves downwards along the guide rod by moving the handle downwards to tightly press the wireless module placed on the carrier plate; the carrier plate is fixedly arranged on the carrier plate supporting plate;
the top plate is provided with a top rod and is arranged on the base;
a through hole is arranged at a position, corresponding to the wireless module of the carrier plate, on the carrier plate supporting plate; the support plate supporting plate is elastically connected to the top plate, and when the support plate supporting plate is pressed downwards, the ejector rod penetrates through the through hole to eject the wireless module.
Furthermore, the carrier plate is provided with a spring pin, and the wireless module is placed at the spring pin; one end of the elastic needle is installed on the installation support plate and connected with the radio frequency cable and the USB cable, and the other end of the elastic needle is used for being in contact with a pin of the wireless module.
Furthermore, multichannel radio frequency cable is connected to the one end of bullet needle, the other end of bullet needle is used for contacting with the multichannel antenna pin of wireless module, and multichannel radio frequency cable is connected to a plurality of radio frequency interface of shielding case respectively one by one, and a plurality of radio frequency interface of shielding case are connected to respectively one by one the comprehensive tester.
Preferably, the elastic needle is detachably mounted on the carrier plate, and the elastic needles with different specifications are respectively designed and replaced according to modules with different models.
Furthermore, a plurality of elastic pins are mounted on the carrier plate, and a bus multiplexer is arranged on the carrier plate and used for simultaneously testing the wireless modules placed at the plurality of elastic pins; the bus multiplexer connects the USB terminals of the plurality of wireless modules to the USB interface of the shielded box.
Further, a power module, a reset key and an SIM card slot are arranged on the carrier plate;
the power supply module is used for providing a working power supply for the wireless module;
the reset key is used for manually resetting the wireless module;
the SIM card slot is used for placing a test SIM card.
Further, the automatic test software comprises a super terminal, test software CMWrun and a test script; the super terminal is used for establishing a connection channel so as to transmit test parameters by using the connection channel; the test software CMWrun is used for importing the test script and executing the test instruction of the script.
Furthermore, the Test script is internally provided with Test cases which accord with the corresponding specifications of FCC Part 96.47, FCC KDB 940660 D01 Part 96 CBRS Eqpt v03 and WINNF-TS-0122-V1.0.1 CBRS CBRD Test Specification.
Based on the same inventive concept, a wireless module testing method is provided, and by using the wireless module testing system, the operation of automatic testing software comprises the following steps:
s1, acquiring identity information of a wireless module;
s2, loading configuration software, and performing identity information verification and channel function test;
s3, if the S2 test is passed, recording the IMEI number of the wireless module, executing the step S4, if the S2 test is not passed, recording a first test result in a memory of the module, and ending the test;
s4, running a test software CMWrun, calling a test script and starting an automatic radio frequency performance test;
s5, if the S4 test is passed, recording a second test result in the memory of the module, and executing the step S6, and if the S4 test is not passed, recording a third test result in the memory of the module, and executing the step S6;
and S6, generating, storing and/or uploading a test report, and ending the test.
Compared with the prior art, the invention has the beneficial effects that:
1. the wireless module testing system is constructed by clamping and fixing the wireless module by using the clamp, and utilizing the comprehensive tester, the router, the main control device, the shielding box and the clamp arranged in the shielding box, the antenna terminal of the wireless module is led out by using the radio frequency cable and then is connected with the radio frequency interface of the shielding box, and is further connected to the comprehensive tester, a testing signal is received from the comprehensive tester, the USB terminal of the wireless module is led out by using the USB cable and then is connected with the USB interface of the shielding box, and is further connected to the main control device, and a parameter configuration instruction is received from the main control device, so that the function test of the wireless module is realized, the condition that the welding is needed to perform the further test is avoided, the clamp is adopted to clamp and fix the wireless module, and then the radio frequency cable and the USB cable are used to lead out the corresponding terminal of the module, the signal stability in the testing process can be ensured, and the convenience of the operation of the clamp can also improve the working efficiency of a tester.
Drawings
FIG. 1 is a block diagram of a wireless module testing system.
Fig. 2 is a schematic structural diagram of a clamp according to a first embodiment.
Fig. 3 is a schematic structural diagram of a carrier in the first embodiment.
Fig. 4 is a cross-sectional view of the carrier along the central axis of the pogo pin according to an embodiment.
Fig. 5 is a circuit connection block diagram of a carrier board according to an embodiment.
Fig. 6 is a circuit connection block diagram of a carrier board for placing a plurality of wireless modules for simultaneous testing.
FIG. 7 is a flowchart of the automated testing steps S1-S7.
FIG. 8 is a flowchart of the automated testing steps S8-S13.
FIG. 9 is a block diagram of a test system when multiple test stations are provided.
Reference numerals: 1-a handle fixing plate, 2-a handle, 3-a base, 4-a guide rod, 5-a carrier plate supporting plate, 6-a carrier plate, 7-a wireless module, 8-a power switch, 9-a top plate, 10-a pressing plate, 11-a spring pin, 101-a module placing slot position, 102-a reset key, 103-a carrier plate switch, 104-DC-DC, 105-a conversion chip, 106-a power interface, 107-a first USB interface of the carrier plate, 108-a second USB interface of the carrier plate, 109-a JTAG interface, 110-a SIM card slot, 111-a bus multiplexer, 112-a module 1 placing slot position and 113-a module 2 placing slot position, 114-module 3 placing slot, 115-module 4 placing slot, 201-test bench, 202-antenna port ANT1 of wireless module, 203-antenna port ANT2 of wireless module, 204-antenna port ANT3 of wireless module, 205-antenna port ANT4 of wireless module, 301-shielding box, USB interface of 302-shielding box, RF interface RF1 of 303-shielding box, RF interface RF2 of 304-shielding box, RF interface RF3 of 305-shielding box, RF interface RF4 of 306-shielding box, power interface of 307-shielding box, 401-comprehensive tester, RJ45 port of 402-comprehensive tester, RF interface RF1 of 403-comprehensive tester, RF interface RF2 of 404-comprehensive tester, RF interface RF3 of 405-comprehensive tester, RF interface RF4 of 406-comprehensive tester, RJ test PC interface of 501-test, PC interface of 502-test PC, RJ port 503-test PC 45, RJ router of 601-test PC.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter of the present invention is not limited to the following examples, and any technique realized based on the contents of the present invention is within the scope of the present invention.
Example 1
A wireless module test system is shown in FIG. 1, and comprises a comprehensive tester 401, a router 601, a main control device, a shielding box 301 and a clamp arranged in the shielding box; in this embodiment, the main control device is a test PC501, and the fixture is a test workbench 201.
An external power source supplies power to the carrier board in the shielding cage through the power interface 307 of the shielding cage.
The RJ45 port 503 of the test PC is connected with the RJ45 port 402 of the comprehensive tester through the router 601, the main control device is used for running automatic test software to control the comprehensive tester 401 to generate test signals, and the clamp is used for clamping and fixing the wireless module; the clamp is connected with a radio frequency interface of the shielding box after leading out an antenna terminal of the wireless module through a radio frequency cable, and the radio frequency interface of the shielding box is connected with the comprehensive tester 401 and used for receiving a test signal from the comprehensive tester 401; the clamp is connected with the USB interface 302 of the shielding box after leading out the USB terminal of the wireless module through a USB wire, and the USB interface 302 of the shielding box is connected with the USB interface 502 of the test PC and used for receiving parameter configuration instructions from the main control device.
As shown in fig. 2, the clamp comprises a handle fixing plate 1, a handle 2, a base 3, a guide rod 4, a support plate supporting plate 5, a support plate 6, a power switch 8, a top plate 9 and a pressing plate 10;
the handle fixing plate 1 is fixedly connected with the base 3, the handle 2 is installed on the handle fixing plate 1, the pressing plate 10 is fixed on the handle 2, the pressing plate 10 moves downwards along the guide rod 4 by moving the handle 2 downwards, and the stamp hole testing point of the wireless module 7 is contacted with the elastic needle 11 on the support plate 6, so that the wireless module 7 placed on the support plate 6 is pressed tightly; the carrier plate 6 is fixedly arranged on the carrier plate supporting plate 5; each single bullet needle in the bullet needles 11 is a U-shaped bullet needle.
A top rod is arranged on the top plate 9, and the top plate 9 is arranged on the base 3;
a through hole is arranged on the carrier supporting plate 5 at a position corresponding to the wireless module 7 of the carrier 6; the carrier plate supporting plate 5 is elastically connected to the top plate 9; after the test is finished, the handle 2 is lifted, the pressing plate 10 loosens the wireless module 7, and the carrier supporting plate 5 is manually pressed down, so that the ejector rod penetrates through the through hole to eject the wireless module 7 out of contact with the elastic needle 11. The wireless module 7 can be taken out and replaced by the next wireless module 7;
the elastic connection method is that a plurality of elastic supporting members, for example, four spring pins, are installed between the carrier supporting plate 5 and the top plate 9, the upper ends of the spring pins are fixed at the bottom of the carrier supporting plate 5, the lower ends of the elastic supporting members are fixed at corresponding positions on the top of the top plate 9, and the four spring pins are distributed at four top corners of the carrier supporting plate 5. When the pressing plate 10 moves downwards and contacts the carrier plate 6 by the operating handle 2, the carrier plate 6 and the carrier plate supporting plate 5 do not need to be pressed downwards to the top plate 9, and the wireless module 7 can be pressed only by the contact between the pressing plate 10 and the carrier plate 6 and a certain pressure.
As shown in fig. 3, the carrier 6 is provided with a pogo pin 11, and specifically, the pogo pin 11 is configured in a shape of Kong Danzhen as a stamp in accordance with the shape of the wireless module. Placing the wireless module 7 at the elastic needle 11; one end of the elastic needle is installed on the installation support plate and connected with the radio frequency cable and the USB cable, USB signals are input and output through a USB port on the support plate, and the other end of the elastic needle is used for being in contact with a pin of the wireless module. The mounting of a single pogo pin of the pogo pin 11 on the carrier plate 6 is shown in fig. 4, and the single pogo pin is welded on the carrier plate 6 by a welding spot.
The carrier board 6 is provided with a module placing slot 101, a reset key 102, a carrier board switch 103, a DC-DC (direct current converter) 104, a conversion chip 105, a power interface 106, a first USB interface 107 of the carrier board, a second USB interface 108 of the carrier board, a JTAG interface 109 and a SIM card slot 110; a schematic diagram of the circuit connection of the carrier board 6 is shown in fig. 5.
The carrier switch 103, the DC-DC (direct current converter) 104, the conversion chip 105, and the power interface 106 constitute a power module of the carrier 6. The power supply module is used for providing a working power supply for the wireless module; the carrier switch 103 is used for power management of the carrier, and improves convenience of operation of replacing the module, and turning on and off the equipment. The DC-DC 104 is used for providing the type of power supply required by the wireless module; the power interface 106 of the power module is used for external power input;
the conversion chip 105 is used for converting USB into UART function; the first USB interface 107 of the carrier board is used for testing UART communication between the PC501 and the wireless module through USB; the second USB interface 108 of the carrier board is used for testing the communication between the PC501 and the wireless module through USB; JTAG interface 109 is used for module exception debugging;
the reset key 102 is used for manually resetting the wireless module, and the wireless module is repeatedly tested under the condition that a power supply of the carrier plate is not turned off, so that the testing efficiency is improved;
the SIM card slot 110 is used for placing a test SIM card.
When the wireless module that needs the test has multichannel antenna, perhaps when radio frequency input/output port, it is corresponding, for multichannel radio frequency cable is connected to the bullet needle for connect the wireless module's of multichannel a plurality of antenna terminal, multichannel radio frequency cable is connected to a plurality of radio frequency interface of shielded cell respectively one by one, a plurality of radio frequency interface of shielded cell respectively one by one to synthesize the tester.
The elastic needles are detachably mounted on the support plate 6, and the elastic needles with different specifications are respectively designed and replaced according to modules with different models.
The elastic needle on the carrier plate 6 plays a role in limiting the connection of the wireless module and the test point.
The carrier support plate 5 serves to fix the carrier 6 and to connect the cables.
The base 3 can be used for accessing a power supply and for an electrical storage box.
In this embodiment, in order to test a plurality of wireless modules simultaneously, the carrier board 6 may be provided with a plurality of wireless module placing slots, for example, a module 1 placing slot 112, a module 2 placing slot 113, a module 3 placing slot 114, and a module 4 placing slot 115, and correspondingly, a plurality of pogo pins are installed at the wireless module placing slots for limiting connection between the wireless modules and the test points, and a bus multiplexer 111 is provided on the carrier board 6 for testing the wireless modules placed at the pogo pins simultaneously; the bus multiplexer 111 connects the USB terminals of the plurality of wireless modules to the USB interface of the shielded box. Specifically, the present embodiment provides a carrier board for simultaneously testing 4 wireless modules, and a circuit connection block diagram of the carrier board is shown in fig. 6.
The connection mode of the 4 wireless modules, the shielding box and the comprehensive tester is as follows (refer to fig. 1 again): the antenna port ANT1 202 of the wireless module, the antenna port ANT2 203 of the wireless module, the antenna port ANT3 204 of the wireless module and the antenna port ANT4 205 of the wireless module are respectively connected with the radio frequency interface RF1 303 of the shielding box, the radio frequency interface RF2 304 of the shielding box, the radio frequency interface RF3 305 of the shielding box and the radio frequency interface RF4 306 of the shielding box through radio frequency cables; meanwhile, the radio frequency interface RF1 403 of the comprehensive tester, the radio frequency interface RF2 404 of the comprehensive tester, the radio frequency interface RF3 405 of the comprehensive tester, and the radio frequency interface RF4 406 of the comprehensive tester are respectively connected with the radio frequency interface RF1 303 of the shielding box, the radio frequency interface RF2 304 of the shielding box, the radio frequency interface RF3 305 of the shielding box, and the radio frequency interface RF4 306 of the shielding box through radio frequency cables.
The automatic test software comprises a super terminal, test software CMWrun and a test script; the super terminal is used for establishing a connection channel so as to transmit test parameters by using the connection channel; the test software cmwun is used for importing the test script and executing a test instruction of the script, controlling the comprehensive tester 401, and completing automatic testing and report generation.
The Test script is internally provided with Test cases which accord with corresponding specifications of FCC Part 96.47, FCC KDB 940660 D01 Part 96 CBRS Eqpt v03 and WINNF-TS-0122-V1.0.1 CBRS CBRD Test Specification.
The running of the automated testing software comprises the following steps:
acquiring identity information of a wireless module;
loading configuration software, and performing identity information verification and channel function test;
if the test in the step (two) passes, recording the IMEI number of the wireless module, executing the step (four), if the test in the step (two) does not pass, recording a first test result in a memory of the module, and ending the test;
running a test software CMWrun, calling a test script and starting the automatic test of the radio frequency performance;
(V) if the test in the step (IV) passes, recording a second test result in the memory of the module, and executing the step (VI), and if the test in the step (IV) does not pass, recording a third test result in the memory of the module, and executing the step (VI);
and (VI) generating, storing and/or uploading a test report, and ending the test.
In this embodiment, the model of the comprehensive tester is CMW500. The comprehensive tester is controlled by the test PC, so that the remote operation can be realized, the automatic test script can be executed, and the test efficiency is high.
The test system and the test method can simultaneously carry out radio frequency emission index and receiving index tests and data unit tests on a plurality of receiving and transmitting channels of the multi-channel module, and carry out protocol consistency tests on the receiving and transmitting channels, including protocol tests of a physical layer, an MAC layer, a network layer, an application layer and the like; the Test Specification meets the requirements of FCC Part 96.47, FCC KDB 940660 D01 Part 96 CBRS Eqpt v03 and WINNF-TS-0122-V1.0.1 CBRS CBRD Test Specification, and the Test operation is simple and rapid.
Example 2
The embodiment provides a specific wireless module testing method based on the testing system of the embodiment 1, as shown in fig. 7 and 8, including the following steps:
s1, connecting a testing device and configuring a PC server and stations in a production environment according to the figure 1.
S2, placing the wireless module on the test mainboard, and limiting the wireless communication module through the position corresponding to the stamp Kong Danzhen fixed seat;
and S3, scanning the label information of the wireless module, such as SN number, IMEI number and the like.
S4, pressing the handle downwards to enable the pressing plate of the tested wireless module to move downwards, enabling the stamp hole of the tested wireless module to contact the U-shaped elastic needle test point of the carrier plate, and enabling the stamp hole to be fastened and fixed on the carrier plate;
the U-shaped test bullet needle on support plate 6 can be changed alone, places and takes out the test module under test through respectively downwards and upwards moving handle 2, and mechanized operation greatly reduced artifical intensity of labour, improved production efficiency, guaranteed the test assembly reliability, and saved equipment cost. Preferably, the set of test workbench can be suitable for wireless modules such as 120Pin LCC packages, 80Pin LCC packages or 40Pin LCC packages, only the U-shaped test elastic pins on the carrier plates 6 of corresponding models need to be replaced, and the applicability is stronger.
Furthermore, the wireless module carrier board is added with a bus multiplexer, so that the carrier board 6 can be used for placing and testing a plurality of (4 pcs) wireless modules at the same time.
And S5, loading configuration software, and performing function tests such as SN (serial number), version information, communication interfaces and the like.
1) Running Ctrl + Alt + T on the test PC opens the terminal, executing the following instructions under the ft _ bin directory into the test list, as follows:
sudo su
* (ii) is the test PC password
The/ft _ test _64 bit// 32bit operating system uses the ft _ test _32bit file
2) And (3) entering a test list, inputting 1, and automatically completing the Ethernet test, the module version information and related configuration parameter check, and the radio frequency calibration parameter write-in by the test program in sequence.
And S6, if the functional test is not passed, terminating the test, writing a test mark 0x00 into the module NVRAM, and taking out the module.
And S7, if the function test is passed, writing the IMEI number acquired by the scanning module label.
And S8, running the test software CMWrun, calling a test script, and clicking the RUN to start the radio frequency automatic test.
The Test host of the Test device of the embodiment is configured with corresponding Test software CMWrun and corresponding Test scripts, and Test cases which accord with corresponding specifications of FCC Part 96.47, FCC KDB 940660 D01 Part 96 CBRS Eqpt v03 and WINNF-TS-0122-V1.0.1 CBRS CBRD Test Specification are built in the Test host.
The comprehensive tester of the testing device of the embodiment, the model CMW500, is communicated with the CBRS frequency band wireless module in the shielding box to test and analyze the radio frequency performance of the CBRS frequency band wireless module;
CMW500 tracks CBRS module operating frequency range: 3550 to 3700MHz, and setting bandwidths of 5MHz, 10MHz and 15MHz 20MHz; modulation schemes QPSK, 16QAM, 64QAM.
This embodiment testing arrangement's shielded cell, shielding performance in full frequency channel scope: >80dB, operating frequency: 3550MHz to 3700MHz; the method is used for shielding interference signals and ensuring that the test environment is clean.
The test script comprises test items such as receiving sensitivity, transmitting power, frequency error and the like of 4 receiving and transmitting channels.
The transmission power program setting value is 23 + -2 dBm, if the test value exceeds the range, the test item of the wireless module is judged to fail.
Receiving a sensitivity program set value of-98 +/-2 dBm, and if the test value exceeds the range, judging that the test item of the wireless module fails to test.
S9, if the wireless module has the test failure item, writing a test mark 0x02 into the specific test storage area of the wireless module.
And S10, if all the tests of the wireless module pass, writing a test mark 0x01 into a specific test storage area of the wireless module.
And S11, automatically generating a tested test report, storing the test report of the tested module in a test PC (personal computer) and uploading the test report to a PC server.
S12, pressing a closing button to quit the test program.
And S13, after the test is finished, the handle is lifted, the carrier plate supporting plate 5 is manually pressed downwards, the ejector rods on the top plate 9 eject the wireless module 7 out of contact with the elastic pins and are far away from the wireless module, and then the wireless module is taken out.
The method indicates the detection result of the module through the test result flag bit written in the specific test storage area of the wireless module. The test automation degree is high, the test report is automatically generated, and the test report can be remotely tested and checked in real time.
Compared with the conventional wireless module testing method, when the single CBRS frequency band multi-channel wireless module is actually tested, the time-consuming data comparison result is shown in the following table 1:
TABLE 1 comparison of the test time of the present invention with that of the prior art
The data in the table above shows that the testing efficiency of the testing method for the CBRS multi-channel wireless module provided in this embodiment is 2.9 times that of the conventional method.
Furthermore, the wireless module carrier board is added with a bus multiplexer, so that the carrier board 6 can be used for simultaneously placing and testing a plurality of (4 pcs) wireless modules.
Further, a plurality of (10) test platforms are configured during large-scale mass production test, as shown in fig. 9, the test platform 1 and the test platform 2 … are used for placing the test device of the present patent, and each test platform uploads test data to the PC server 501 through the router 601.
Taking the test of 10 CBRS frequency band multi-channel modules as an example, for concrete data, see table 2 below, the test efficiency is significantly improved by 30 times, thereby reducing the production cost of the modules.
TABLE 2 test time-consuming comparison of 10 CBRS frequency band multi-channel modules
| Time consumption for testing 10 CBRS frequency band multi-channel modules by using traditional method | 325 × 10=3250 seconds |
| This embodiment is time consuming to test 10 CBRS frequency bands |
111 × 1=111 seconds |
The invention can simultaneously test a plurality of wireless modules at a plurality of stations. And the carrier plate and the wireless module are convenient to replace. The U-shaped test bullet needle on support plate 6 can be changed alone, places and takes out wireless module through respectively downwards and upwards moving handle 2, and mechanized operation greatly reduced artifical intensity of labour, improved production efficiency, guaranteed the test assembly reliability, and saved equipment cost. Preferably, the set of test workbench can be suitable for wireless modules such as 120Pin LCC packages, 80Pin LCC packages or 40Pin LCC packages, only the U-shaped test elastic pins on the carrier plates 6 of corresponding models need to be replaced, and the applicability is stronger.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A wireless module testing system comprises a comprehensive tester, a router, a master control device, a shielding box and a clamp arranged in the shielding box; the master control device is connected with the comprehensive tester through the router and used for running automatic test software to control the comprehensive tester to generate test signals, and the clamp is used for clamping and fixing the wireless module; the antenna terminal of the wireless module is connected to one end of a radio frequency interface of the shielding box through a radio frequency cable on the clamp, and the other end of the radio frequency interface of the shielding box is connected with the comprehensive tester and used for receiving test signals from the comprehensive tester; the clamp is connected with a USB interface of the shielding box after leading out the USB terminal of the wireless module through a USB wire, and the USB interface of the shielding box is connected with the main control device and used for receiving a parameter configuration instruction from the main control device.
2. The wireless module test system of claim 1, wherein the fixture comprises a handle fixing plate (1), a handle (2), a base (3), a guide bar (4), a carrier plate supporting plate (5), a carrier plate (6), a power switch (8), a top plate (9) and a pressing plate (10);
the handle fixing plate (1) is fixedly connected with the base (3), the handle (2) is installed on the handle fixing plate (1), the pressing plate (10) is fixed on the handle (2), and the pressing plate (10) moves downwards along the guide rod (4) by moving the handle (2) downwards to press the wireless module (7) placed on the carrier plate (6); the carrier plate (6) is fixedly arranged on the carrier plate supporting plate (5);
the top plate (9) is provided with a mandril, and the top plate (9) is arranged on the base (3);
a through hole is arranged on the carrier plate supporting plate (5) at a position corresponding to the wireless module (7) of the carrier plate (6); the carrier plate supporting plate (5) is elastically connected to the top plate (9), and when the carrier plate supporting plate (5) is pressed downwards, the ejector rod penetrates through the through hole to eject the wireless module (7).
3. The system for testing a wireless module according to claim 2, wherein the carrier board (6) is provided with a pogo pin, and the wireless module is placed at the pogo pin; one end of the elastic needle is installed on the support plate and connected with the radio frequency cable and the USB cable, and the other end of the elastic needle is used for being in contact with a pin of the wireless module.
4. The system as claimed in claim 3, wherein one end of the pogo pin is connected to a plurality of RF cables, the other end of the pogo pin is used for contacting with a plurality of antenna pins of the wireless module, the RF cables are respectively connected to the RF interfaces of the shielding box one by one, and the RF interfaces of the shielding box are respectively connected to the comprehensive tester one by one.
5. A wireless module testing system according to claim 3, wherein the pogo pins are detachably mounted on the carrier board (6), and different specifications of pogo pins are designed and replaced respectively according to different models of modules.
6. A wireless module testing system according to claim 3, wherein a plurality of pogo pins are mounted on the carrier board (6), and a bus multiplexer is provided on the carrier board (6) for simultaneously testing wireless modules placed at the plurality of pogo pins; the bus multiplexer connects the USB terminals of the plurality of wireless modules to the USB interface of the shielded box.
7. The wireless module testing system according to claim 2, wherein the carrier board (6) is provided with a power module, a reset button (102) and a SIM card slot;
the power supply module is used for providing a working power supply for the wireless module;
the reset key (102) is used for manually resetting the wireless module;
the SIM card slot is used for placing an SIM card.
8. The wireless module test system of claim 1, wherein the automated test software comprises a super terminal, test software cmwun, and test scripts; the super terminal is used for establishing a connection channel so as to transmit test parameters by using the connection channel; the test software CMWrun is used for importing the test script and executing the test instruction of the script.
9. The wireless module Test system of claim 8, wherein the Test script embeds Test cases that conform to FCC Part 96.47, FCC KDB 940660 d01 Part 96 CBRS Eqpt v03, and to win nf-TS-0122-V1.0.1 CBRS CBRD Test Specification.
10. A wireless module testing method, characterized in that, with the wireless module testing system according to any one of claims 1-9, running automated testing software comprises the following steps:
s1, acquiring identity information of a wireless module;
s2, loading configuration software, and performing identity information verification and channel function test;
s3, if the S2 test is passed, recording the IMEI number of the wireless module, executing the step S4, if the S2 test is not passed, recording a first test result in a memory of the module, and ending the test;
s4, running a test software CMWrun, calling a test script and starting an automatic radio frequency performance test;
s5, if the S4 test is passed, recording a second test result in the memory of the module, and executing the step S6, if the S4 test is not passed, recording a third test result in the memory of the module, and executing the step S6;
and S6, generating, storing and/or uploading a test report, and ending the test.
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