CN207339884U - A kind of WIFI performances and functional tester - Google Patents

Abstract

It the utility model is related to a kind of WIFI performances and functional tester, including wiring board and the main control chip being arranged on wiring board, for the RS232 interface and network interface being connected with host computer I, RF circuit switchings switch II and one or more RF circuit switchings switch I, the double frequency WIFI transceiving chips I being connected with the main control chip, for amplifying wireless transmission signal and receiving the double-frequency wireless radio-frequency front-end of signal；One or more I ports of SMA, III port of II ports of SMA and SMA, the coupler of the WIFI product signals to be measured received for coupling I ports of SMA, and power splitter I, power splitter II and be connected the features such as double frequency WIFI transceiving chips II with III ports of SMA, using the tester of the utility model be capable of a testing station complete involved by WIFI function dependence test.

Description

A kind of WIFI performances and functional tester

Technical field

The utility model belongs to communication technique field, and in particular to a kind of WIFI performances and functional tester.

Background technology

In the production process of product of WIFI function is related to, factory needs for the test of WIFI, respectively different Test platform and test corresponding test item, such as WIFI signal calibration, WIFI Static State Indexes, WIFI performance throughouts, WIFI signal Near-field test (NFT).Multiple replacement is thus needed to test platform.The time of test is largely added, is added Cost of labor and test equipment.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art, there is provided a kind of WIFI performances and functional tester, The dependence test of WIFI function involved by one testing station completion is capable of using the tester of the utility model, for example solves WIFI Signal calibration, WIFI Static State Indexes, WIFI performance throughouts, WIFI signal near-field test, effectively reduces the testing time, surveys Cost of labor is tried, improves production efficiency.

To achieve these goals, the technical solution that the utility model is taken is as follows：

A kind of WIFI performances and functional tester, including wiring board and the main control chip being arranged on wiring board, are arranged at On the main control chip for the RS232 interface and network interface that are connected with host computer I, passed through to control by the main control chip and believed Number RF circuit switchings switched over switch II and one or more RF circuit switchings switch I, what is be connected with the main control chip is double Frequency WIFI transceiving chips I, be connected with the double frequency WIFI transceiving chips I one or more be used for amplify wireless transmission signal and Receive the double-frequency wireless radio-frequency front-end of signal；And one or more I ports of SMA, II ports of SMA, power splitter I, III ports of SMA, Power splitter II and double frequency WIFI transceiving chips II；

I ports of SMA are connected with the coupler of the WIFI product signals to be measured received for coupling I ports of SMA, institute State I ports of SMA to be connected with the input port of the coupler, the output port of the coupler and corresponding RF circuit switchings The public port of switch I is connected, and the coupling port of the coupler is connected with corresponding tributary port on the power splitter I, The branch A ports of the RF circuit switchings switch I are connected with the double-frequency wireless radio-frequency front-end, the RF circuit switchings switch I Branch B ports be connected with corresponding tributary port on the power splitter II, the combining port of the power splitter II with it is described The branch A ports of RF circuit switchings switch II are connected, the combining port of the power splitter I and RF circuit switchings switch II Branch B ports are connected, and the public port of the RF circuit switchings switch II is connected with II ports of SMA；

III ports of SMA are connected with the double frequency WIFI transceiving chips II, are set on the double frequency WIFI transceiving chips II It is equipped with the USB interface being connected with host computer II.

Further, it is also associated with sending RF circuit switchings switch II and RF circuits to main control chip on the main control chip The toggle switch of I gear signal of switching switch.

Further, D/C power and D/C power switch are further included.

Further, the network interface is LAN mouthfuls of Ethernet；The host computer I and the host computer II are PC；Institute State and be connected on main control chip with I PCIe interface by being arranged on the main control chip of the double frequency WIFI transceiving chips.

Compared with prior art, having the beneficial effect that acquired by the utility model：

The utility model improves in WIFI process of producing product the test item, it is necessary to for different WIFI functions, The troublesome operation of different test platforms is replaced, one-stop, a set of test environment completes whole test items, when saving test Between, the time of test environment is built, effectively reduces production cost.And on the basis of production efficiency is improved, add Some convenient debug modes -- the transmitting static parameter of test prototype is measured under dynamic handling capacity.Model machine is reduced in non-survey To the degree of difficulty of static parameter test under die trial formula.

Brief description of the drawings

Fig. 1 is the system construction drawing of the utility model tester；

Fig. 2 is system construction drawing when power X is measured in the utility model calibration method；

Fig. 3 is signal transmission figure when power X is measured in the utility model calibration method；

Fig. 4 is system construction drawing when power Z is measured in the utility model calibration method；

Fig. 5 is signal transmission figure when power Z is measured in the utility model calibration method；

Fig. 6 is system construction drawing when power Y is measured in the utility model calibration method；

Fig. 7 is signal transmission figure when power Y is measured in the utility model calibration method；

Fig. 8 is that the utility model carries out transmission power calibration and the WIFI under static parameter test and dynamic handling capacity System construction drawing during Tx static parameter tests；

Fig. 9 is that the utility model carries out transmission power calibration and signal transmission figure during static parameter test；

Figure 10 be the utility model into WIFI Tx static parameter tests under Mobile state handling capacity when signal transmission figure；

Figure 11 is system construction drawing when the utility model carries out handling capacity and NFT tests；

Figure 12 is signal transmission figure when the utility model carries out NFT tests；

Figure 13 is signal transmission figure when the utility model carries out testing throughput.

Embodiment

Further details of narration is carried out to the utility model with reference to embodiments.

One embodiment of a kind of WIFI performances of the utility model as shown in Figure 1 and functional tester, including wiring board, The main control chip 2 being arranged on wiring board, be arranged on the main control chip 2 for the RS232 that is connected with host computer I 22 Interface 4 and network interface 5, the RF circuit switchings switched over by the main control chip 2 by control signal switch II 13 and 1 or more A RF circuit switchings switch I 8, the double frequency WIFI transceiving chips I 3 being connected with the main control chip 2, are received and dispatched with the double frequency WIFI One or more 7 (dual- of double-frequency wireless radio-frequency front-end for being used to amplify wireless transmission signal and reception signal that chip I 3 is connected band WIFI FEM)；And one or more I ports 10 of SMA, II ports 11 of SMA, III ports 12 of SMA, power splitter I 14, work(point Device II 15 and double frequency WIFI transceiving chips II 16；

I ports 10 of SMA are connected with the coupling of 19 signal of WIFI products to be measured received for coupling I ports 10 of SMA Clutch 9, I ports 10 of SMA are connected with the input port of the coupler 9, the output port of the coupler 9 with it is corresponding RF circuit switchings switch I 8 public port be connected, the coupling port of the coupler 9 is corresponding with the power splitter I 14 Tributary port be connected, the branch A ports of RF circuit switchings switch I 8 are connected with the double-frequency wireless radio-frequency front-end 7, institute The branch B ports for stating RF circuit switchings switch I 8 are connected with corresponding tributary port on the power splitter II 15, the work(point The combining port of device II 15 is connected with the branch A ports of RF circuit switchings switch II 13, the combining end of the power splitter I 14 Mouthful be connected with the branch B ports of RF circuit switchings switch II 13, the public port of RF circuit switchings switch II 13 and II ports 11 of SMA are connected；

III ports 12 of SMA are connected with the built-in double-frequency wireless radio-frequency front-end of the double frequency WIFI transceiving chips II 16, The usb 17 being connected with host computer II 18 is provided with the double frequency WIFI transceiving chips II 16.

Main control chip 2 is a master cpu for carrying network function in the utility model, he is integrated with control and is used with debugging RS232 interface 4, can be connected with host computer I 22；It can control RF circuit switchings to switch I 8 Hes by host computer I 22 Switching between the branch port of RF circuit switchings switch II 13, so as to change for different test events in tester 1 Signal transmission path, when the branch A ports of RF circuit switchings switch I 8 are unimpeded, RF circuit switchings switch II 13 branch A ports It is one transmission path of pattern when being in closed mode with branch B ports, testing throughput and NFT tests can be carried out；When It is pattern when the branch A ports of the branch B ports RF circuit switchings switch II 13 of RF circuit switchings switch I 8 keep unimpeded Two transmission paths, can carry out calibration and the WIFI static parameter tests of WIFI products 19 to be measured；When I ports of SMA and RF circuits It is that pattern three transmits road warp, furthermore it is required that RF circuit switchings when the branch B ports of switching switch II 13 keep unimpeded The branch A ports for switching I 8 are in open mode, at this point it is possible into the WIFI Tx static parameter tests under Mobile state handling capacity； Main control chip 2 connects double frequency WIFI transceiving chips I 3 by relevant interface in the utility model, by the transceiving data of wireless side By network interface 5 turn to receive and send, and the intensity for docking the collection of letters number is analyzed, and then realize testing throughput and NFT The purpose of test；The major function of the utility model double frequency WIFI transceiving chips is to be turned wireless signal and baseband signal Change, then received and dispatched data by main control chip 2, realize the purpose of testing throughput, and the double frequency WIFI is received and dispatched Chip can realize the test of 2.4G and 5G WIFI two-bands.Wherein double frequency WIFI transceiving chips I 3 are as handling capacity and NFT Test and use under pattern.Double frequency WIFI transceiving chips II 16 are to be calibrated as loss with being used under loss compensation models.Double frequency WIFI transceiving chips I 3 and double frequency WIFI transceiving chips II 16 are completely self-contained systems.The utility model double frequency WIFI receives and dispatches core Piece II 16 is to be connected by usb 17 with host computer II 18, is directly controlled by host computer II 18, is sent out by III ports 12 of SMA Power is penetrated, as calibration loss purposes；In addition, double frequency WIFI transceiving chips II 16 can also be switched respectively by host computer II 18 Operating rate, bandwidth, modulating mode, working band, output power is to meet the loss calibration requirements under different situations；This practicality Novel double-frequency less radio-frequency front end 7：The purposes of the chip is amplification wireless transmission signal and receives signal, can pass through double frequency WIFI transceiving chips I 3 switch 2.4G and 5G WIFI working signals, further, it is also possible to do switch motion, receive and emitting shape The switching of state and the switching of double frequency WIFI frequency ranges use；The utility model RF circuit switchings switch is switched by main control chip 2 Branch port switches the path of radiofrequency signal, reaches switching of the different mode transmission road through under.The utility model coupler 9 is The signal for the WIFI products 19 to be measured that tester 1 is received from antenna end is coupled out, and is connected by III ports 12 of SMA quiet State Parameter analysis equipment (external equipment) is quiet to analyze the transmitting signal of the WIFI products 19 to be measured under dynamic testing throughput State parameter (EVM, Spectrum Mask, frequency deviation, transmission power)；The utility model power splitter is treated the reception of a few road antennas Survey signal integration and come to static analysis equipment all the way, is then connected respectively to a few road antennas progress dependence test, and damaged in insertion Consumption calibration, radio frequency link transmission power calibration and the WIFI Tx under WIFI static parameter tests, dynamic handling capacity of WIFI products It is not that multi-path antenna is carried out at the same time test in static parameter test and NFT tests, but can only tests all the way at the same time, that is, needs Test antenna all the way, antenna all the way under re-test, only testing throughput, can both carry out single channel antenna measurement, also may be used To carry out multi-path antenna test.I ports 10 of the utility model SMA are connected with calibration test antenna 24 by radio frequency line, and calibration is surveyed Examination antenna 24 is connected with the antenna of WIFI products 19 to be measured by way of antenna near-field coupling, and II ports 11 of SMA are used for and survey Examination equipment is connected；III ports 12 of SMA are used to be connected with the antenna of test equipment or WIFI products 19 to be measured.

Further, the main control chip 2, RS232 interface 4, network interface 5, RF circuit switchings switch II 13, one or more RF circuit switchings switch I 8, double frequency WIFI transceiving chips I 3, double-frequency wireless radio-frequency front-end 7, I ports 10 of SMA, II ports of SMA 11st, III ports 12 of SMA, power splitter I 14, power splitter II 15, double frequency WIFI transceiving chips II 16 and USB interface are integrated to set It is placed on wiring board.

Further, it is also associated with sending RF circuit switching switch position signals to main control chip 2 on the main control chip 2 Toggle switch 6；When stirring toggle switch 6 and toggle switch 6 is in different gears, (gear is different, and RF circuit switchings are opened Close II 13 and the branch A ports on RF circuit switchings switch I 8 and branch B ports connected state it is different), toggle switch 6 can will (i.e. RF circuit switchings switch II 13 is connected with the branch port of RF circuit switchings switch I for RF circuit switching switch positions signals Status information) main control chip 2 is sent to, after then main control chip 2 receives the gear signal of the transmission of toggle switch 6, pass through control Signal processed control RF circuit switchings switch II 13 and RF circuit switchings switch I 8 in the closing of branch A ports and branch B ports or Open, so as to fulfill the switching between the warp of different mode transmission road.

Further, D/C power and D/C power switch are further included.The utility model D/C power, supplies to whole 1 device of tester Electricity.

Further, the network interface 5 is LAN mouthfuls of Ethernet；The host computer I 22 and the host computer II 18 are PC；Pass through the PCIE interfaces that are arranged on the main control chip 2 with the double frequency WIFI transceiving chips I 3 on the main control chip 2 Connection.

Further, the test equipment is WIFI static parameters analyzer 20.

A kind of one reality of test method that WIFI performances and function are carried out using above-mentioned tester 1 as shown in Fig. 2-13 Applying example, (WIFI products to be measured are which is provided with No. 4 antennas altogether in the embodiment, I ports 10 of SMA, coupler on tester 1 9th, RF circuit switchings switch I 8, double-frequency wireless radio-frequency front-end 7 are also 4 tunnels), comprise the following steps：

Step 1: the insertion loss calibration (purpose of Loss calibrations：In static parameter and transmission power calibration test event In, it is necessary to test the transmission power of WIFI products 19 to be measured, in test, the transmitting signal of WIFI products 19 to be measured, can pass through Antenna, tester 1 and between the high-frequency line that connects, these connections or coupled modes can all have certain insertion loss, so The measurement power of static parameter analytical instrument can be caused relatively low, so just needing to measure the insertion loss during this path Come, and compensate into static parameter analytical instrument, and then accurate transmission power can be measured.)

Step 1-1, the RF circuit switchings switch of switch test instrument 1 first makes the branch B ports of RF circuit switchings switch I 8 Open mode is in the branch A ports of RF circuit switchings switch II 13, then as shown in Fig. 2, the USB on tester 1 is connect Mouthfuls 17 are connected with host computer II 18, and III ports 12 of SMA are passed through radio frequency line and wherein antenna all the way on WIFI products 19 to be measured Antenna cable ends are connected, and corresponding I ports 10 of SMA on tester 1 are passed through radio frequency line and the (school of calibration test antenna 24 Quasi- test antenna 24 is the double frequency dipole antenna of WIFI a kind of) it is connected, antenna and institute on the WIFI products 19 to be measured Calibration test antenna 24 is stated by way of antenna near-field coupling to be connected；II ports 11 of SMA are finally passed through into radio frequency line and WIFI The test signal receiving interface of static parameter analyzer 20 is connected；

Step 1-2, after host computer II 18 recognizes the calibration system of tester 1, is controlled to be measured by host computer II 18 Antenna transmission power on WIFI products, sets the transmission power, bandwidth, modulating mode of calibration system, emission rate, such as Fig. 3 institutes Show, the transmission power of the SMAIII ports 12 is 0dBm, and antenna transmission power is launched by III ports 12 of SMA, by radio frequency Line reaches the antenna cable ends of antenna on WIFI products 19 to be measured, i.e. A points, and antenna is near by antenna on WIFI products 19 to be measured The signal received is coupled to calibration test antenna 24 by the mode of field coupled RF signal, and passes through 24 coupling of calibration test antenna Close corresponding I ports 10 of SMA, then in turn through inside tester 1 RF circuit switchings switch I 8, power splitter II 15, RF circuit switchings switch II 13 reaches II ports 11 of SMA, and WIFI static parameters analyzer 20 is transmitted signals to by radio frequency line Test signal receiving interface, i.e. B points, then by WIFI static parameters analyzer 20 record power X, X=0dBm-Loss (RFcable 1)–Loss(A to B)；

0dBm：12 transmission power of SMAIII ports；Loss(RFcable 1)：Radio frequency line inserts on III ports 12 of connection SMA Enter loss；Loss(A to B)：From the antenna cable ends of antenna on WIFI products 19 to be measured, that is, A points to WIFI static parameters minute Insertion loss on the path of the test signal receiving interface of analyzer 20, that is, B points；

Step 1-3, disconnects static parameter analyzer 20 and the connection of II ports 11 of SMA first, then as shown in figure 4, will Corresponding I ports 10 of SMA are the radio frequency line connected on C points on tester 1, after being pulled down from SMAI ports 10, are connected to quiet On the test signal receiving port of state parameter analyzer 20, after host computer II 18 recognizes the calibration system of tester 1, pass through Host computer II 18 controls antenna transmission power on WIFI products 19 to be measured, sets the transmission power, bandwidth, modulation mould of calibration system Formula, emission rate, as shown in figure 5, the transmission power of the SMAIII ports 12 is 0dBm, antenna transmission power passes through SMA III Port 12 is launched, and the antenna cable ends of antenna on WIFI products 19 to be measured, i.e. A points, WIFI products to be measured are reached by radio frequency line The signal received is coupled to calibration test antenna 24 by antenna by way of antenna near-field coupled RF signal on 19, and is led to The test signal receiving interface that calibration test antenna 24 is coupled to static parameter analyzer 20 is crossed, by WIFI static parameter analyzers 20 record power Z, Z=0dBm-Loss (A to C), draw Loss (A to C)=- ZdBm；

Wherein, Loss (A to C) is antenna cable ends, that is, A points to SMAI ports 10 of antenna on WIFI products 19 to be measured That is the insertion loss between C points on path；

Step 1-4, disconnects III ports 12 of SMA and WIFI products 19 to be measured, WIFI products 19 to be measured and calibration test antenna Connection between 24, and calibration test antenna 24 and WIFI static parameters analyzer 20, then as shown in fig. 6, by III ends of SMA Mouth 12 is directly connected to WIFI static parameters analyzer 20 by radio frequency line, as shown in fig. 7, the transmitting of setting SMAIII ports 12 Power is 0dBm, and the test signal receiving interface of WIFI static parameters analyzer 20 is reached through radio frequency line, then static by WIFI The measurement of parameter analyzer 20 obtains power Y, Y=0dBm-Loss (RFcable 2)；Connect III ports 12 of SMA and the static ginsengs of WIFI Radio frequency line between number analyzer 20 is connected the radio frequency line phase of antenna on III ports 12 of SMA and WIFI products with step 1-2 Together, therefore, Loss (RFcable 2)=Loss (RFcable 1)；

Then insertion loss of the 19 Shang Gai roads antenna of WIFI products to be measured in whole antenna-path is：Loss (Path)=Y- X=0dBm-Loss (RFcable2)-[0dBm-Loss (RFcable1)-Loss (A to B)]=Loss (A to B)；

Step 1-5, measures other a few road antennas on WIFI products 19 to be measured by step 1-1 to 1-4 the methods successively After Loss (Path) value complement of insertion loss Loss, Bing Jiangge roads antenna is repaid in WIFI static parameters analyzer 20, that is, complete The calibration test of all antennas on WIFI products 19 to be measured, finally disconnects tester 1 and host computer II 18 and WIFI products to be measured 19 connection；

Step 2: the radio frequency link transmission power calibration of WIFI products and WIFI static parameter tests

Step 2-1, after Loss (Path) is compensated in WIFI static parameters analyzer 20, first as shown in figure 8, will treat Survey WIFI products 19 and tester 1 is placed in shielded box 23, WIFI products 19 to be measured are passed through into cable and host computer III 21 Ethernet network interface cards I (the present embodiment uses PC) is attached, and the antenna of WIFI products 19 to be measured is coupled by antenna near-field The mode of signal is connected with calibration test antenna 24, and calibration test antenna 24 is logical with corresponding I ports 10 of SMA on tester 1 Radio frequency line connection is crossed, host computer I 22 is connected by serial port connecting wire with the RS232 interface 4 of tester 1, host computer I 22 is led to Cross cable to be connected with the network interface 5 of tester 1, by the II port 11 and WIFI static parameters analyzers 20 of SMA of tester 1 by penetrating Frequency line connects；Ethernet network interface card II phases by the network interface of WIFI static parameters analyzer 20 by cable and host computer III21 Connection.

Step 2-2, firstly, it is necessary to transmission power calibration is carried out to each antenna link of WIFI products 19 to be measured, if Surely target power PT is calibrated, then switching RF line switchings by host computer I 22 makes the branch B ports of RF circuit switchings switch I 8 Open mode is in the branch A ports of RF circuit switchings switch II 13, then WIFI products to be measured are controlled by host computer III 21 19, since WIFI products 19 are in not calibrated state at this time, the power that WIFI products 19 to be measured are launched is unknown, so first Transmission power parameter H0 (Index) is set, transmitting RF signal power corresponding with H0 (Index) is Px0 (dBm), transmitting Radiofrequency signal by way of antenna near-field coupled RF signal, and via I ports 10 of SMA enter tester inside, successively By entering RF circuit switchings switch II 13 after coupler, RF circuit switchings switch I 8, power splitter II 15, finally via SMA II Signal is received or launched to WIFI static parameters analyzer 20 by port 11；WIFI static parameters analyzer 20 is by step 1 Insertion loss Loss (path) on the middle whole measurement link measured is compensated to the radiofrequency signal received, is drawn to be measured The power P x0 that WIFI product Shang Gai roads antenna is launched, Px0 is known power at this time, and WIFI static parameters analyzer 20 passes through Power P x0 is fed back to host computer III21 by network interface, and Px0 compared with target power PT, is passed through two points by host computer III21 The mode of method sets second of transmission power parameter H1 (Index), and corresponding second of transmission power is Px1 at this time, is sent to WIFI static parameters analyzer 20, power P x2 is arrived in measurement, and is fed back to host computer III21 and PT and compared；Constantly repeat the step Suddenly until the power of WIFI products 19 to be measured transmitting is identical with target power Pt, transmitting work(corresponding with target power is obtained at this time Transmission power parameter Hn (Index) is written in WIFI products 19 by rate parameter Hn (Index), host computer III21 by network interface, Complete the transmission power calibration of 19 Shang Gai roads antenna of WIFI products to be measured；

Step 2-3, switching RF line switchings by host computer I 22 makes branch B ports and the RF of RF circuit switchings switch I 8 The branch A ports of circuit switching switch II 13 are in open mode, are then controlled by host computer III 21 (the present embodiment uses PC) Make WIFI products 19 to be measured and launch or receive radiofrequency signal, as shown in figure 9, transmitting or the radiofrequency signal received pass through antenna near-field The mode of coupled RF signal reaches calibration test antenna 24, and enters the inside of tester 1 via I ports 10 of SMA, leads to successively Enter RF circuit switchings switch II 13 after overcoupling device 9, RF circuit switchings switch I 8, power splitter II 15, finally via II ends of SMA Signal is received or launched to WIFI static parameters analyzer 20 by mouth 11；Complete 19 Shang Gai roads of WIFI products day to be measured The WIFI static parameter tests of line；

Step 2-4, switches to other a few road antennas respectively successively, and successively according to step 2-2 and step 2-3 the methods Transmission power calibration and WIFI static parameter tests are carried out, launches work(to the WIFI for completing all antennas on WIFI products 19 to be measured Rate is calibrated and static parameter test；

Step 3: (WIFI transmitting terminals are static under dynamic handling capacity joins the WIFI Tx static parameter tests under dynamic handling capacity Number test)

Step 3-1, first, WIFI products 19 and tester 1 to be measured are in shielded box, III 21 (this implementation of host computer Example use PC) assign control command to WIFI products 19 to be measured, make on WIFI products 19 to be measured only all the way antenna be in opening State；Tester 1 is set as adaptive model, host computer I 22 makes to 1 time control command of tester, switching RF line switchings The branch B ports for the RF circuit switchings switch II 13 being connected on tester 1 with the antenna opened on WIFI products 19 to be measured Be in open mode with the branch A ports of RF circuit switchings switch I 8, keep the branch B ports of RF circuit switchings switch II 13 with I ports 10 of SMA are unimpeded, and then as shown in Figure 10, host computer I22 searches what WIFI products 19 to be measured were broadcasted by tester SSID, after searching, is attached by way of antenna coupling, so that data are set up 1 from host computer I22 to tester, Calibration test antenna 24 is arrived again, WIFI products 19 to be measured is then connected to by way of near-field coupling, finally to host computer The path of III21；

Step 3-2, after completing the connection described in step 3-1, respectively by being completed on host computer I22 and host computer III21 The control in data traffic direction, and WIFI products 19 to be measured are set as data uplink testing throughput, that is, launch signal, pass through The signal that the antenna of WIFI products 19 to be measured is launched is transferred to calibration test antenna 24 by way of near-field coupling, and via After I ports 10 of SMA enter the inside of tester 1, radiofrequency signal passes through the coupling port of the coupler 9 by coupler 9 I 14 corresponding tributary port of power splitter is transported to, then passes through the combining port of power splitter I14 and RF circuit switchings switch II WIFI static parameters analyzer 20 is sent to by II ports 11 of SMA behind 13 branch B ports, is completed on WIFI products 19 to be measured WIFI Tx static parameter tests under the dynamic handling capacity of the road antenna；

Step 3-3, other a few road antennas are switched to respectively successively, and are carried out successively according to step 3-1 and 3-2 the method Test, extremely the WIFI Tx static parameter tests on WIFI products 19 to be measured under the dynamic handling capacity of all antennas are completed；

Step 4: NFT tests (NFT near-field tests：Factory end is directed to the WIFI model machines assembled and is tested, and judges Whether WIFI radio frequency links assemble normally；Typically by the antenna and test antenna coupled RF signal of model machine to be measured, pass through The signal strength that test antenna receives, to judge whether assembling is normal；So-called near field refers to antenna and the test of model machine to be measured Antenna is the near field by antenna come coupled signal.)

Step 4-1, after disconnecting the connection between WIFI static parameters analyzer 20 and host computer III21, as shown in figure 11, WIFI products 19 and tester 1 to be measured are placed in shielded box 23, and WIFI products 19 to be measured are passed through cable and host computer III 21 The Ethernet network interface cards of (the present embodiment uses PC) are attached, and the antenna of WIFI products 19 to be measured is coupled by antenna near-field The mode of signal is connected with calibration test antenna 24, and calibration test antenna 24 is logical with corresponding I ports 10 of SMA on tester 1 Radio frequency line connection is crossed, host computer I 22 is connected by serial port connecting wire with the RS232 interface 4 of tester 1, host computer I 22 is led to Cross cable to be connected with the network interface 5 of tester 1, by the II port 11 and WIFI static parameters analyzers 20 of SMA of tester 1 by penetrating Frequency line connects；

Step 4-2, host computer III 21 assigns control command to WIFI products 19 to be measured, makes only one on WIFI products 19 to be measured Road antenna is in open mode, and other a few road antennas are in closed mode, and the inside of tester 1 and the antenna phase of road opening I ports 10 of SMA of connection, coupler 9, RF circuit switchings switch I 8, double-frequency wireless radio-frequency front-end 7 are also in open mode, And I ports 10 of SMA that are connected with the antenna that other several roads are closed, coupler 9, RF circuit switchings switch I 8, double-frequency wireless are penetrated Frequency front end 7 is also in closed mode；

Step 4-3, switch antenna RF line switching Shi Yugai roads opened by host computer I 22 to be connected RF circuit switchings The branch A ports for switching I 8 are in open mode, and RF circuit switchings switch II 13 is closed, and avoids radiofrequency signal from leading to Overcoupling device 9 is coupled to SMAII ports 11 and radiate, and influences to test；

Step 4-4, the working status of WIFI products 19 to be measured is controlled by host computer III 21 (the present embodiment uses PC), and The connection speed and state of the adaptive WIFI products 19 to be measured of tester 1, then host computer I22 searched by tester 1 to be measured The SSID that WIFI products 19 are broadcasted, after searching, is attached by way of antenna coupling, as shown in figure 12, WIFI to be measured The transmitting signal of product 19 is coupled by antenna, and enters the inside of tester 1 via I ports 10 of SMA, successively by coupler 9th, main control chip 2 is sent to by double frequency WIFI transceiving chips I 3 after RF circuit switchings switch I 8, double-frequency wireless radio-frequency front-end 7, and The transmitting signal of WIFI products 19 to be measured is read by RS232 interface 4 by host computer I 22, obtains the intensity RSSI of transmitting signal；

Near-field signals intensity：NFTSSI=RSSI-Loss (A to C)-IL (internal)；

Wherein, Loss (A to C) is the i.e. A in antenna cable ends of antenna on the WIFI products 19 to be measured measured in step 1 Insertion loss between point is C points to SMAI ports 10 on path；IL (internal) arrives for 1 inside SMA of tester, I ports 10 Coupler 9 is to RF circuit switchings switch I 8 again to the insertion loss in the reception link of double-frequency wireless radio-frequency front-end 7；IL (internal) measured when designing tester, with a collection of tester, the value is a fixed value, and in WIFI to be measured It can not be measured when the performance of product and functional test, and in the NFT tests of WIFI products to be measured, it is strong to calculate near-field signals IL (internal) this fixed value only need to be directly subtracted when spending；In addition, coupler is arrived in 1 inside SMA of tester, I ports 10 9 switch I 8 again to decay (i.e. IL (internal)) phase in the reception link of double-frequency wireless radio-frequency front-end 7 to RF circuit switchings To smaller, the result of NFT tests is influenced little, therefore IL (internal) can be with when carrying out near-field signals Strength co-mputation Ignored；

After completing 19 Shang Gai roads antenna NFT of WIFI products to be measured test, by the road antenna and with the road antenna into I ports 10 of SMA of row connection, coupler 9, RF circuit switchings switch I 8, double-frequency wireless radio-frequency front-end 7 are closed；

Step 4-5, other a few road antennas are opened successively and be connected with corresponding antenna I ports 10 of SMA, coupler 9th, RF circuit switchings switch I 8, double-frequency wireless radio-frequency front-end 7, and successively NFT surveys are carried out according to step 4-2 to 4-4 the methods Try to complete NFT tests to all antennas of WIFI products 19 to be measured；

Step 5, (whether the testing throughput is used for examining the wireless performance of WIFI products to be measured testing throughput To meet the specification of Product Acceptance Review)

Step 5-1, first, WIFI products 19 and tester 1 to be measured are in shielded box, III 21 (this implementation of host computer Example uses PC) it is connected by Ethernet network interfaces with 19 network interface of WIFI products to be measured, host computer III 21 is to WIFI products 19 to be measured Control command is assigned, all antennas of WIFI products 19 to be measured are in open mode；By host computer I22 to tester 1 assigns control command, I ports 10 of SMA of Testing And Regulating antenna 24 and tester 1, coupler 9, RF circuit switchings switch I 8, double-frequency wireless radio-frequency front-end 7 sets and is in an open state, and tester 1 is set as adaptive model, then such as Figure 13 institutes Show, host computer I22 searches the SSID of the broadcast of WIFI products 19 to be measured by tester 1, after searching, passes through the side that antenna couples Formula is attached, so as to set up data 1 from host computer I22 to tester, then to calibration test antenna 24, then passes through near field The mode of coupling is connected to WIFI products 19 to be measured, finally to the path of host computer III21；

Step 5-2, after the connection for completing step 5-1, completes data flow by host computer I22 and host computer III21 respectively The control in direction is measured, and after completing the test of 19 data uplink handling capacity of WIFI products to be measured and data downlink throughput capacity, is disconnected The connection of tester 1 and host computer I 22 and WIFI products 19 to be measured, you can.

Embodiment described above is only the preferred embodiment of the utility model, and the not feasible implementation of the utility model It is exhaustive.For persons skilled in the art, it is made on the premise of without departing substantially from the utility model principle and spirit Any obvious change gone out, should all be contemplated as falling with the claims of the utility model.

Claims (4)

1. a kind of WIFI performances and functional tester, it is characterised in that including wiring board and the master control core being arranged on wiring board Piece, be arranged on the main control chip for the RS232 interface and network interface that are connected with host computer I, by the main control chip The RF circuit switchings switch II and one or more RF circuit switchings switch I switched over by control signal, with the master control core The double frequency WIFI transceiving chips I that piece is connected, one or more being connected with the double frequency WIFI transceiving chips I are used to amplify wirelessly Launch signal and receive the double-frequency wireless radio-frequency front-end of signal；And one or more I ports of SMA, II ports of SMA, power splitter I, III ports of SMA, power splitter II and double frequency WIFI transceiving chips II；

I ports of SMA are connected with the coupler of the WIFI product signals to be measured received for coupling I ports of SMA, described I ports of SMA are connected with the input port of the coupler, and the output port of the coupler is opened with corresponding RF circuit switchings The public port of pass I is connected, and the coupling port of the coupler is connected with corresponding tributary port on the power splitter I, institute The branch A ports for stating RF circuit switchings switch I are connected with the double-frequency wireless radio-frequency front-end, the RF circuit switchings switch I Branch B ports are connected with corresponding tributary port on the power splitter II, combining port and the RF of the power splitter II The branch A ports of circuit switching switch II are connected, the combining port of the power splitter I and point of RF circuit switchings switch II Branch B ports are connected, and the public port of the RF circuit switchings switch II is connected with II ports of SMA；

III ports of SMA are connected with the double frequency WIFI transceiving chips II, are provided with the double frequency WIFI transceiving chips II The USB interface being connected with host computer II.

2. a kind of WIFI performances according to claim 1 and functional tester, it is characterised in that on the main control chip also Connect oriented main control chip and send the toggle switch that RF circuit switchings switch II and RF circuit switchings, I gear signal of switch.

3. a kind of WIFI performances according to claim 1 and functional tester, it is characterised in that further include D/C power and DC Power switch.

4. a kind of WIFI performances according to claim 1 and functional tester, it is characterised in that the network interface is LAN mouthfuls of Ethernet；The host computer I and the host computer II are PC；Received on the main control chip with the double frequency WIFI Hair chip I is connected by the PCIe interface being arranged on the main control chip.