CN104754093A - Test device, system and method - Google Patents
Test device, system and method Download PDFInfo
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- CN104754093A CN104754093A CN201310726379.XA CN201310726379A CN104754093A CN 104754093 A CN104754093 A CN 104754093A CN 201310726379 A CN201310726379 A CN 201310726379A CN 104754093 A CN104754093 A CN 104754093A
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Abstract
The invention discloses a test device, system and method. The device comprises a radio frequency part circuit connected with a tested device and used for providing a test radial frequency channel for the tested device, and a digital processing part circuit connected with the radio frequency part circuit and used for controlling the radio frequency part circuit to emit a signal to the tested device, wherein the signal emitted by the tested device is received by the radio frequency part circuit so as to complete the testing on the tested device. Through the adoption of the test device, system and method, the problems that the cost of communication terminal production test equipment is high and the test speed is slow in related technology are solved, and the production efficiency is improved.
Description
Technical field
The present invention relates to the communications field, in particular to testing equipment, system and method.
Background technology
The production test of existing communication terminal adopts the instrument such as signal source, spectrum analyzer to carry out radio-frequency (RF) transceiver calibration, radio-frequency (RF) transceiver test to terminal, the equipment adopting the scheme of all purpose instrument to need comprises: the equipment such as radio frequency vector signal source, radio frequency vector signal analyzer, be connected by GPIB line between PC with tester, these testing equipment costs are high, between PC and testing equipment, data interaction affects by bus simultaneously, test spended time is also long, and test speed is slower.
For the problems referred to above existed in correlation technique, also rational solution is not proposed at present.
Summary of the invention
The invention provides testing equipment, system and method, at least to solve the slow problem of communication terminal production test in correlation technique.
According to an aspect of the present invention, provide a kind of testing equipment, comprising: radio frequency part circuit, is connected with equipment under test, for providing testing radio frequency passage for described equipment under test; Digital processing partial circuit, being connected with described radio frequency part circuit, thinking that described equipment under test transmits for controlling described radio frequency part circuit, and, received the signal of described equipment under test transmitting by described radio frequency part circuit, complete the test to described equipment under test.
Preferably, digital processing partial circuit described in described radio frequency part circuit domain is arranged on two circuit boards, and described two circuit boards are connected by backboard.
Preferably, described radio frequency part circuit comprises: power detection circuit, for obtaining input and/or output power value; Receiving circuit, for Received signal strength; Transtation mission circuit, for sending signal; Memory, for storing data.
Preferably, described radio frequency part circuit also comprises: temperature sensor, for by the measurement to temperature, realizes temperature-compensating.
Preferably, described digital processing partial circuit comprises: first processor, for perform following one of at least: communicate with the network port, system parameter setting, tested object download program, load the second processor; Described second processor, for perform following one of at least: testing process controls, the treatment and analyses of image data, produce and send test massage.
Preferably, described digital processing partial circuit also comprises:
Field programmable gate array, for realize following one of at least: the Interface design of described first processor and described second processor, AD/DA Interface design, Hilbert transform, phase-locked-loop configuration, equipment under test logic control.
Preferably, described first processor is arm processor, and described second processor is DSP.
According to an aspect of the present invention, additionally provide a kind of test macro, it is characterized in that, comprise above-mentioned testing equipment, also comprise: computer, be connected with described testing equipment, described computer comprises: screen, and for showing man-machine interface, described man-machine interface user shows test results; Memory, for store test results; Interface, for receiving test command and/or test data.
Preferably, also comprising: network interface, being positioned in described computer and/or described testing equipment, for receiving remote command and/or data.
Preferably, also comprise: described network interface, also for being connected with other test macros, for realizing sharing of test data.
According to another aspect of the present invention, additionally provide a kind of method of testing, use above-mentioned test macro, described method comprises: download test program to described equipment under test; Carry out following test one of at least: the wide frequency sound test of receiving belt, receive flatness test, receive calibration chart test, receive isolation degree test, receive the test of TDD SINR coefficient, receive the test of CNR coefficient, receive noise factor test, receive ACPR test; Carry out receiving to carry out after frequency offset correction following test one of at least: launch frequency deviation and launch the test of I/Q unevenness, the test of maximum linear transmitting power, maximum transmission power test, optimal transmit power calibration, the test of transmitting calibration table, launch SINR and CNR test, launch isolation degree test, launch flatness test, launch ACPR test, launch carrier wave and suppress test, transmitted bandwidth frequency sound test; Generate test report.
By the present invention, radio frequency part circuit, is connected with equipment under test, for providing testing radio frequency passage for described equipment under test; Digital processing partial circuit, be connected with described radio frequency part circuit, think that described equipment under test transmits for controlling described radio frequency part circuit, and, received the signal of described equipment under test transmitting by described radio frequency part circuit, complete the test to described equipment under test, solve communication terminal production test equipment cost in correlation technique high, the problem that test speed is slower, improves production efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the block diagram of the testing equipment according to the embodiment of the present invention;
Fig. 2 is the ATE design frame chart according to the embodiment of the present invention;
Fig. 3 is the rf board structured flowchart according to the embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments; It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In the present embodiment, provide a kind of testing equipment, Fig. 1 is the block diagram of the testing equipment according to the embodiment of the present invention, and as shown in Figure 1, this testing equipment comprises:
Radio frequency part circuit 104, is connected with equipment under test 102, for providing testing radio frequency passage for this equipment under test;
Digital processing partial circuit 106, is connected with this radio frequency part circuit 104, thinks that this equipment under test transmits for controlling this radio frequency part circuit, and, received the signal of this equipment under test transmitting by this radio frequency part circuit, complete the test to this equipment under test.
Provide one in the present embodiment and be exclusively used in the testing equipment of carrying out testing, the test to equipment under test is achieved by the radio frequency part circuit of this testing equipment and digital processing partial circuit, thus it is high to solve communication terminal production test equipment cost in correlation technique, the problem that test speed is slower, improves production efficiency.
Preferably, this digital processing partial circuit of this radio frequency part circuit domain is arranged on two circuit boards, and these two circuit boards are connected by backboard.
Preferably, this radio frequency part circuit comprises: power detection circuit, for obtaining input and/or output power value; Receiving circuit, for Received signal strength; Transtation mission circuit, for sending signal; Memory, for storing data.
Preferably, this radio frequency part circuit also comprises: temperature sensor, for by the measurement to temperature, realizes temperature-compensating.
Preferably, this digital processing partial circuit comprises: first processor, for perform following one of at least: communicate with the network port, system parameter setting, tested object download program, load the second processor; This second processor, for perform following one of at least: testing process controls, the treatment and analyses of image data, produce and send test massage.
Preferably, this digital processing partial circuit also comprises: field programmable gate array, for realize following one of at least: the Interface design of this first processor and this second processor, AD/DA Interface design, Hilbert transform, phase-locked-loop configuration, equipment under test logic control.
Preferably, this first processor is arm processor, and this second processor is DSP.
According to another aspect of the present invention, additionally provide a kind of test macro, comprise above-mentioned testing equipment, also comprise: computer, be connected with this testing equipment, this computer comprises: screen, and for showing man-machine interface, this man-machine interface user shows test results; Memory, for store test results; Interface, for receiving test command and/or test data.
Preferably, also comprising: network interface, being positioned in this computer and/or this testing equipment, for receiving remote command and/or data.This network interface, also for being connected with other test macros, for realizing sharing of test data.
Additionally provide a kind of method of testing in the present embodiment, the method uses above-mentioned test macro, comprising: download test program to this equipment under test; Carry out following test one of at least: the wide frequency sound test of receiving belt, receive flatness test, receive calibration chart test, receive isolation degree test, receive the test of TDD SINR coefficient, receive the test of CNR coefficient, receive noise factor test, receive ACPR test; Carry out receiving to carry out after frequency offset correction following test one of at least: launch frequency deviation and launch the test of I/Q unevenness, the test of maximum linear transmitting power, maximum transmission power test, optimal transmit power calibration, the test of transmitting calibration table, launch SINR and CNR test, launch isolation degree test, launch flatness test, launch ACPR test, launch carrier wave and suppress test, transmitted bandwidth frequency sound test; Generate test report.
Achieved by above-mentioned method of testing and receive test and transmission test, and corresponding test report can be generated.
Be described below by a preferred embodiment.
The present embodiment provide a kind of with computer with the use of automated test device (Automated Test Equipment, referred to as ATE) testing equipment, produce lineman people and use computer and ATE testing equipment provided by the invention, greatly reduce production cost.Adopt full-automatic test, test process reduces personnel as far as possible intervenes, and has both saved personnel's spending, and has enhanced productivity again.ATE highly versatile, not only can test various terminal equipment, SYN, TR of all right testing base station and tower amplification module.The test signal that ATE platform can be simulated actual TDD carries out dynamic test, the testing performance index of such as tower amplification module under TDD mode of operation, and the TDD received signal to noise ratio of terminal and transmitting signal to noise ratio etc., these tests are that traditional instrument cannot realize.
ATE is the automatic test equipment for batch production tests and research and develop.The design of ATE is based on the design philosophy of software radio, radio-frequency channel and baseband processing portion relatively independent, simultaneously by calibration, realize being compensated by software the deviation of hardware system, on the basis of this compensation, effectively can reduce the required precision of hardware system, thus reach the object reduced costs.
ATE is made up of PC main frame and ATE complete machine, carries out communication between main frame and complete machine by switch network interface.Network system makes ATE to carry out Long-distance Control, also can carry out systems soft ware remote upgrade.PC main frame mainly runs the testing software of man-machine interaction, and testing software adopts powerful graphical programming development environment Labview to realize, and adopts the background process of PC, is convenient to form the monitor and managment to whole production process; ATE complete machine hardware mainly comprises several parts such as digiboard, rf board, backboard and power module, and software mainly comprises several parts run on ARM9, FPGA and DSP.
Fig. 2 is the ATE design frame chart according to the embodiment of the present invention.As shown in Figure 2, by ATE(Automated Test Equipment) exploitation of testing equipment, make terminal test convenient and efficient; ATE tested object is many, highly versatile, and tested object, not only for terminal, also comprises SYN, TR and the tower amplification module of base station; Test data stores and adopts local storage and network data library storage two kinds of modes, and the test result of every station terminal can be related.
Be described below in conjunction with accompanying drawing.
For making ATE platform have good performance, radio frequency part circuit and digital processing partial circuit take the thinking of separate design, design respectively on two each and every one circuit boards, are connected by backboard.Radio frequency part main circuit will comprise transceiver channel, local oscillator and radio-frequency switch circuit.The test of different frequency bands product only need change different ATE rf boards.
The digiboard structured flowchart of inventive embodiments is as shown in the ATE numerical portion of Fig. 2.Concrete, digiboard mainly adopts the design of ARM9+C6416+FPGA+ high-speed AD/DA+AD/DA.MPU adopts AT91RM9200, speed of service 200MIPS, and have the D-Cache of I-Cache and 16KB of 16KB, 32bit extends out bus EBI, and peripheral hardware USB, MAC, USART, SPI, GPIO etc.DSP adopts the 840MHz high speed processor C6414 of TI.Modulus conversion chip adopts the AD9862 of ADI, and have two-way AD and DA, AD has the resolution of 10/12bit and the sample rate of 64MHz, and DA is 12/14bit, 128MHz.
Mainboard carries out communication by ARM and PC, and their interface has USB, RS232 and Ethernet tri-kinds.Wherein, USB interface is full speed USB2.0, and speed can reach 12Mbit/s, and Ethernet is 10/100Mbit/s.
Fig. 3 is the rf board structured flowchart according to the embodiment of the present invention, as shown in Figure 3, ATE rf board comprises a few part such as detecting circuit, receiving circuit, transtation mission circuit, local oscillation signal measuring circuit, PLL circuit, MCU, FLASH, temperature sensor composition, mainly realizes following functions: read input output power value; For measured terminal provides testing radio frequency passage; By the measurement to temperature, realize temperature-compensating.
ATE complete machine side software designs
ATE complete machine side software mainly comprises ARM9 programming, DSP programming and FPGA programme part: ARM9 program mainly realizes and the work such as network interface communication, system parameter setting, tested object download program, DSP program LOAD.DSP program mainly completes that testing process controls, the treatment and analyses of image data, produce and send test massage etc., is the core content of ATE systems soft ware.FPGA program mainly realizes the function such as ARM9 and dsp interface design, AD/DA Interface design, Hilbert transform, phase-locked-loop configuration and Board Under Test logic control.
PC side Labview testing software designs
PC is as the center connecting ATE and equipment under test, simultaneously as the unique interface contacted with tester, require that PC side software man-machine interface is friendly, also must possess good error correction, report an error ability, and require that carry out test result in test shows simultaneously in real time, and export simple test result analysis and test report, also should generate various file store test results after having tested, to analyze further.
PC side test software will be developed based on Labview platform.Software system structure is divided into protocol layer, communication interface layer and human-machine interface layer three layers.
Protocol layer ensures the protocol conformance between software, is made up of udp protocol and custom protocol two parts;
Communication interface layer is divided into UDP communication to communicate two kinds with self-defined according to agreement difference:
UDP communicates: instruction and data is packed according to UDP communication protocol, unpack, sends and received by network interface, realizes the communication of PC and ATE;
Self-defined communication module: instruction and data is packed according to self-defining communication protocol, unpack, sends and received by network interface, realizes the communication of PC and end product.
Measured terminal side test Software for Design
In order to coordinate the automatic test of ATE, the software of measured terminal side also needs to adjust accordingly.Measured terminal side test software is developed based on different terminal platforms, mainly comprises the protocol stack based on ARM and the two-part programming of DSP:
ARM9 program mainly realizes and the work such as network interface communication, tested object download program, DSP program LOAD.
DSP program mainly completes testing process and controls, and gathers the signal from ATE end and calculates the indices of measured terminal, produces and send test massage to gather for ATE; In addition, DSP program adds the hand bench program of convenient for maintaining and debugging.
The terminal test flow process of the embodiment of the present invention is as follows: after test starts, from configuration file, read parameter, configuration global variable, judge whether test port adopts USB port, if so, wait for that terminal powers on, find terminal USB Microsoft Loopback Adapter and drive it, shaking hands with terminal; If not, then PC network interface card is driven;
Download test program to measured terminal, reading terminals test program version number, judge whether band power amplifier terminal, if so, first adjust potentiometer and electric current is met the demands, then reading terminals produces sequence number; If not, then directly reading terminals produces sequence number;
Judge whether terminal is RDA platform terminal, if so, read receiving gain list file and generate original gain table, judge whether afterwards to adopt adjustable attenuator; Judge that terminal is not RDA platform terminal, then directly judge whether to adopt adjustable attenuator;
If employing adjustable attenuator, read adjustable attenuator Flash table, according to reception/emission mode and power adjustment attenuator values, issue the parameters such as frequency, line loss, terminal bandwidth and chip type to ATE; If do not adopt adjustable attenuator, then issue the parameters such as frequency, line loss, terminal bandwidth and chip type directly to ATE;
Reading terminals Flash shows, check whether PID and MAC Address exist, exist and continue to use otherwise distribute portion, then undertaken by following flow process: DC calibrates, AFC calibrates, the wide frequency sound test of receiving belt, reception flatness is tested, and receives calibration chart, receives flatness test, receives TDD SINR, CNR, noise factor test, receive ACPR test, again receive frequency offset correction;
Judge whether it is RDA platform terminal, if so, read transmitting gain list file and generate original gain table, launch frequency deviation and launch the test of I/Q unevenness; If not RDA platform terminal, then directly launch frequency deviation and launch the test of I/Q unevenness;
And then maximum linear transmitting power, maximum transmission power, optimal transmit power is calibrated, transmitting calibration table, transmitting SINR and CNR test, transmitting isolation degree test, launch flatness test, transmitting ACPR test, launch carrier wave and suppress test, transmitted bandwidth frequency sound test, terminal and ATE are all configured to receive pattern, download Flash and show terminal, band WiFi terminal downloads WiFi MAC Address, generate test report, test result is stored in database, and test terminates.
By above-mentioned the present embodiment, reach following technique effect:
1. low cost, high efficiency
Coming into operation of ATE makes production line saves the use of the standard universal such as frequency spectrograph, signal source instrument, and the cost of ATE equipment be only reference instrument tens of/mono-, that is the use of ATE greatly reduces production cost.And test speed is also (with regard to CPE, the test of every platform will complete within tens of second) that all purpose instrument cannot be compared, adopt full-automatic test, test process reduces personnel as far as possible intervenes, and has both saved personnel's spending, and has enhanced productivity again.
2. multi-functional, compatible strong
ATE tested object is many, highly versatile, not only can SYN, TR of testing base station and tower amplification module, can also test various terminal equipment.ATE testboard, can also as the maintenance platform of measurand except test function.In addition, plate can also be combined to terminal and frequency and calibrate, the calibration of generation terminal and frequently comprehensive plate, write flash, and support the download online function of measurand program.
3. can carry out real-time, dynamic TDD test
The test signal that ATE platform can be simulated actual TDD carries out dynamic test, the testing performance index of such as tower amplification module under TDD mode of operation, and the TDD received signal to noise ratio of terminal and transmitting signal to noise ratio etc., these tests are that traditional instrument cannot realize
4. Network Basedization, be convenient to data base administration
ATE system adopts Ethernet network interface to communicate, and can realize Long-distance Control and remote software upgrade, the operability of system is improved greatly.PC end adopts powerful Labview development environment, friendly interface, easy to operate, and has powerful database processing function, for the quality of production controls to provide effective instrument.Multiple like this ATE system can be interconnected to realize test data sharing, so that carry out statistics and analysis to production test data.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
This is only the preferred embodiments of the present invention above, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a testing equipment, is characterized in that, comprising:
Radio frequency part circuit, is connected with equipment under test, for providing testing radio frequency passage for described equipment under test;
Digital processing partial circuit, being connected with described radio frequency part circuit, transmitting to described equipment under test for controlling described radio frequency part circuit, and, received the signal of described equipment under test transmitting by described radio frequency part circuit, complete the test to described equipment under test.
2. testing equipment according to claim 1, is characterized in that, digital processing partial circuit described in described radio frequency part circuit domain is arranged on two circuit boards, and described two circuit boards are connected by backboard.
3. testing equipment according to claim 1, is characterized in that, described radio frequency part circuit comprises:
Power detection circuit, for obtaining input and/or output power value;
Receiving circuit, for Received signal strength;
Transtation mission circuit, for sending signal;
Memory, for storing data.
4. testing equipment according to claim 3, is characterized in that, described radio frequency part circuit also comprises: temperature sensor, for by the measurement to temperature, realizes temperature-compensating.
5. testing equipment according to claim 1, is characterized in that, described digital processing partial circuit comprises:
First processor, for perform following one of at least: communicate with the network port, system parameter setting, tested object download program, load the second processor;
Described second processor, for perform following one of at least: testing process controls, the treatment and analyses of image data, produce and send test massage.
6. testing equipment according to claim 5, is characterized in that, described digital processing partial circuit also comprises:
Field programmable gate array, for realize following one of at least: the Interface design of described first processor and described second processor, AD/DA Interface design, Hilbert transform, phase-locked-loop configuration, equipment under test logic control.
7. testing equipment according to claim 5, is characterized in that, described first processor is arm processor, and described second processor is DSP.
8. a test macro, is characterized in that, comprises the testing equipment according to any one of claim 1 to 7, it is characterized in that, also comprise:
Computer, is connected with described testing equipment, and described computer comprises: screen, and for showing man-machine interface, described man-machine interface user shows test results; Memory, for store test results; Interface, for receiving test command and/or test data.
9. testing equipment according to claim 8, is characterized in that, also comprises: network interface, is positioned in described computer and/or described testing equipment, for receiving remote command and/or data.
10. testing equipment according to claim 9, is characterized in that, also comprises:
Described network interface, also for being connected with other test macros, for realizing sharing of test data.
11. 1 kinds of method of testings, is characterized in that, use the test macro according to any one of claim 8 to 10, described method comprises:
Download test program to described equipment under test;
Carry out following test one of at least: the wide frequency sound test of receiving belt, receive flatness test, receive calibration chart test, receive isolation degree test, receive the test of TDD SINR coefficient, receive the test of CNR coefficient, receive noise factor test, receive ACPR test;
Carry out receiving to carry out after frequency offset correction following test one of at least: launch frequency deviation and launch the test of I/Q unevenness, the test of maximum linear transmitting power, maximum transmission power test, optimal transmit power calibration, the test of transmitting calibration table, launch SINR and CNR test, launch isolation degree test, launch flatness test, launch ACPR test, launch carrier wave and suppress test, transmitted bandwidth frequency sound test;
Generate test report.
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| CN107025697A (en) * | 2017-03-31 | 2017-08-08 | 广州地理研究所 | A kind of production detecting system for public transport radio frequency card |
| CN108107411A (en) * | 2016-11-24 | 2018-06-01 | 北京遥感设备研究所 | Unevenness determines method at the top of a kind of wide-band Chirp pulse signal |
| CN110299950A (en) * | 2018-03-22 | 2019-10-01 | 中兴通讯股份有限公司 | A kind of radio-frequency channel bearing calibration and device |
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| CN112014636A (en) * | 2020-07-31 | 2020-12-01 | 西安凌北电子科技有限公司 | Radio frequency module test system based on high-speed AD |
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| CN105101379A (en) * | 2015-07-08 | 2015-11-25 | 努比亚技术有限公司 | Method and system for realizing transmitting power calibration of wifi terminal |
| CN105553973A (en) * | 2015-12-14 | 2016-05-04 | 中国电子信息产业集团有限公司第六研究所 | System and method for detecting industrial control equipment abnormality |
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| CN107025697A (en) * | 2017-03-31 | 2017-08-08 | 广州地理研究所 | A kind of production detecting system for public transport radio frequency card |
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Application publication date: 20150701 |