CN2847704Y - Movable terminal parallel radio frequency detector - Google Patents
Movable terminal parallel radio frequency detector Download PDFInfo
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- CN2847704Y CN2847704Y CNU2005201249535U CN200520124953U CN2847704Y CN 2847704 Y CN2847704 Y CN 2847704Y CN U2005201249535 U CNU2005201249535 U CN U2005201249535U CN 200520124953 U CN200520124953 U CN 200520124953U CN 2847704 Y CN2847704 Y CN 2847704Y
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- testing
- spectrum analyzer
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Abstract
The utility model discloses a movable terminal parallel radio frequency testing device. The utility model comprises a CDMA signal source, a spectrum analyzer, a switch matrix, a testing control unit and a communication DC power supply, wherein the switch matrix is connected with the CDMA signal source and the spectrum analyzer, the testing control unit is connected with CDMA signal source, the spectrum analyzer and the switch matrix through a GPIB bus, and the communication DC power supply is connected with the CDMA signal source, the spectrum analyzer and a movable terminal to be tested and supplies a working power supply. The utility model can carry out parallel testing of radio frequency performance parameters of the movable terminal, greatly quicken testing speed and increase the utilization ratio of instruments.
Description
Technical field
The utility model belongs to mobile communication radio frequency testing field, specifically relates to the device that cdma mobile terminal is carried out radio frequency testing.
Background technology
In the process of mobile communication terminal production, the control of production test cost is very important, and the speed of test beat is having a strong impact on the cost of mobile terminal test, more influences the production capacity of production line.The radio-frequency performance index of cdma mobile terminal mainly is to control by the software and hardware of portable terminal itself.In the actual production, because the discreteness of the radio circuit component parameter of portable terminal, the radio-frequency performance of every portable terminal can not reach the ideal designs requirement.Therefore can both reach the index request of design for the radio-frequency performance that guarantees every portable terminal, need in process of production every portable terminal is all carried out RF radio frequency testing and adjustment, can both reach index request desirable in the design with the RF radio-frequency performance that guarantees every portable terminal.
At present, in the production test of cdma mobile terminal, no matter be that what the transmitter of portable terminal or the detection calibration of receiver were generally adopted is that linear difference is mended the calibration program with extension, the testing time that this calibration program needs is long, and the test beat is slow.Traditional volume production calibration program is in portable terminal of test, and transmitter test and receiver test carry out successively.Traditional volume production calibration program is in the process of a portable terminal of test, only account for 33% of total testing time the service time of signal generator, other 66% times are in idle condition, only account for half of total testing time the service time of spectrum analyzer, there is half the time to be in idle condition, the existing problem of this measuring technology is exactly that the instrument utilance is lower, the testing cost height.
Summary of the invention
The purpose of this utility model, it is low just to be to solve in the present mobile terminal radio frequency measuring technology instrument utilance, testing time is long, the shortcoming that test speed is slow, a kind of parallel radio frequency testing apparatus of portable terminal is provided, can change into the sequential testing that the test of the test of multi-section portable terminal receiver and transmitter is carried out successively the concurrent testing of same time, thereby can test fast and calibrate the radio-frequency performance parameter of cdma mobile terminal.
For realizing above-mentioned purpose, the utility model comprises the CDMA signal source, spectrum analyzer, the switch matrix that is connected with spectrum analyzer with the CDMA signal source, the unit of testing and controlling that is connected with CDMA signal source, spectrum analyzer, switch matrix by gpib bus, and being connected and providing the communication DC power supply of working power with CDMA signal source, spectrum analyzer and the special portable terminal of surveying, 2 portable terminals to be measured are connected on the switch matrix.
The CDMA signal source is a CDMA signal generation branch, needed CDMA reference signal level when offering the calibration of portable terminal receiver test, and spectrum analyzer is analyzed the emission spectrum of portable terminal transmitter, thus the signal power level of measurand transmitter.
Switch matrix comprises the radio-frequency (RF) switch control circuit, the radio-frequency mass spectrometer that is connected with the radio-frequency (RF) switch control circuit, two the serial communication signal level translation circuits and the radio communication path that is connected portable terminal to be measured that connect unit of testing and controlling and portable terminal to be measured, spectrum analyzer port in the switch matrix and signal source port connect spectrum analyzer and signal source respectively.Make signal source can be connected two portable terminals simultaneously, do not disturb each other with spectrum analyzer.
Unit of testing and controlling is transferred to switch matrix to control signal by a port that is connected with switch matrix, when radio-frequency mass spectrometer is in state 1, the CDMA signal source is connected with portable terminal 1, the receiver parameters of testing mobile terminal 1, simultaneously, spectrum analyzer is connected with portable terminal 2, the transmitter parameter of testing mobile terminal 2.After test finishes, unit of testing and controlling is transferred to switch matrix to the control signal of radio-frequency mass spectrometer conversion, the state of radio-frequency mass spectrometer is changed, be in state 2, at this moment, the CDMA signal source is connected with portable terminal 2, the receiver parameters of testing mobile terminal 2, and spectrum analyzer is connected with portable terminal 1, the transmitter parameter of testing mobile terminal 1.
Test control device carries out the control of on off state to radio-frequency mass spectrometer by the radio-frequency (RF) switch control circuit in the switch matrix, thereby signal source and spectrum analyzer are carried out the scheduling of resource processing, reached the synchronous and scheduling between signal source and spectrum analyzer multithreading, concurrent testing has simultaneously been changed in the sequential testing that the test module of the test module of portable terminal receiver and transmitter carries out successively.
The utility model can be applied in the radio-frequency (RF) index detection calibration of cdma mobile terminal research and development and production process, adopted the concurrent testing correction, can accelerate test speed significantly, improve the utilance of instrument, reduce portable terminal and produced brilliant testing cost aborning.
Description of drawings
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is a device connection side block diagram of the present utility model;
Fig. 2 is the theory diagram of switch matrix of the present utility model;
Fig. 3 is circuit theory diagrams of the present utility model.
Embodiment
As shown in Figure 1, the mobile terminal parallel radio frequency testing device comprises CDMA signal source 1, spectrum analyzer 2, the switch matrix 3 that is connected with spectrum analyzer with the CDMA signal source, 2 portable terminals to be measured 1 and the portable terminal 2 that are connected with switch matrix 3 are placed in the shielding box, the unit of testing and controlling 5 that is connected with CDMA signal source 1, spectrum analyzer 2, switch matrix 3 by gpib bus, and be connected and provide the communication DC power supply 4 of working power with CDMA signal source 1, spectrum analyzer 2 and portable terminal to be measured.LC5 wherein, LC6, LC7 and LC8 are the GPIB cable; LR1 is the radio frequency cable of signal source connection matrix switch; LR2 is the radio frequency cable of frequency spectrograph connection matrix switch; LR3, LR4 are respectively the radio frequency cable that matrix switch is connected to portable terminal 1,2 to be tested; LC1, LC3 be respectively unit of testing and controlling connection matrix switch and with portable terminal 1 control of communication line; LC2, LC4 be respectively unit of testing and controlling connection matrix switch and with portable terminal 2 control of communication lines; DC1, DC2 are respectively that the communication DC power supply provides the connecting line of power supply for portable terminal 1,2.
As shown in Figure 2, switch matrix 3 comprises radio-frequency (RF) switch control circuit 3-1, the radio-frequency mass spectrometer 3-3 that is connected with the radio-frequency (RF) switch control circuit connects the level-conversion circuit 3-2 of unit of testing and controlling and two serial communication signal levels of portable terminal to be measured and is connected the radio communication path of spy's survey portable terminal.
Switch matrix has spectrum analyzer port and signal source port, connects spectrum analyzer and signal source respectively, and the UUT1 port connects test cell 1, in put portable terminal 1, the UUT2 port connects test cell 2, in put portable terminal 2.
Unit of testing and controlling is transferred to switch matrix to control signal by the PC_COM2 port that is connected with switch matrix, when the double-pole radio-frequency (RF) switch is in state 1, the CDMA signal source is connected with portable terminal 1, the receiver parameters of testing mobile terminal 1, simultaneously, spectrum analyzer is connected with portable terminal 2, the transmitter parameter of testing mobile terminal 2.When unit of testing and controlling is transferred to switch matrix to the control signal of switch transition, then the state of double-pole radio-frequency (RF) switch carries out conversion, be in state 2, at this moment, the CDMA signal source is connected with portable terminal 2, the receiver parameters of testing mobile terminal 2, and spectrum analyzer is connected with portable terminal 1, the transmitter parameter of testing mobile terminal 1.
Unit of testing and controlling is carried out scheduling of resource by the radio-frequency (RF) switch control circuit and is handled, reached the synchronous and scheduling between signal source and spectrum analyzer multithreading, unit of testing and controlling is set at 2 objects to signal source and two instruments of spectrum analyzer, and sets a kind of seizure condition respectively.In the testing apparatus running, unit of testing and controlling detects the state of each object, when controller detects this Obj State and is in the free time, this object is carried out scheduled operation; Be in when taking when controller detects Obj State, controller is waited for the release of this object.Can improve test speed to the test of the test module crossing parallel of the test module of 2 portable terminal receivers and transmitter like this.
As shown in Figure 3, the 7th pin of serial ports of computers PC_COM2 is by triode VT1, and resistance R 5 is connected with switch matrix 3, realizes the control of the relay switch switching of right+24V double-pole radio-frequency (RF) switch 3-3.
The 2nd, 3 pin of serial ports of computers PC_COM2 as reception RX, the emission TX of communication, by linking to each other with emission TX, the reception RX of portable terminal 1 behind the N2 level conversion integrated circuit, are finished the communication of control mobile phone state respectively.
The 2nd, 3 pin of serial ports of computers PC_COM1 CN4 as RX, the TX of communication, by linking to each other with emission TX, the reception RX of portable terminal 2 behind the N2 level conversion integrated circuit, are finished the communication of control mobile phone state respectively.
N2 mainly finishes 12V to 3V signal level translation function as the integrated circuit (IC) of level conversion; Peripheral circuit is by capacitor C 1, C2, and C3, C4, C5, resistance R 6, R7, R8, R9 connects to form, and has guaranteed signal level shift circuit 3-2 operate as normal.
In order to finish the calibration of travelling carriage charge function, by mobile terminal MS _ 1, the PIN5 of mobile terminal MS _ 2, PIN9 realize the needed charging voltage supply of mobile station testing.
Partly comprise following youngster's part about power management, N3 and VD2, C6, R2, R3, C7, C8 finish the conversion of 24V voltage to the 3V stabilized voltage power supply, and the 3V power supply of testing apparatus is provided; Wherein providing of 24V voltage relies on external stabilized power to provide.And providing of PS_CHARGER1 and PS_CHARGER2 point source relies on the communication DC power supply to provide.
Connector CN2 and diode VD1 are the power supply indicators that LED shows the parallel radio frequency testing apparatus, and whether indicating mobile terminal parallel radio frequency testing apparatus is in normal operating state.If this indicator light shows that always indication device is in state working properly, otherwise, operation irregularity.
The connector CN3 of the switch matrix periphery composition stable-pressure device that is connected with diode VD3, the coupling coil of protection radio-frequency (RF) switch relay prevents coupling coil because overvoltage is burnt.
It is as follows to finish two duty functional statuses for radio-frequency mass spectrometer 3-3; When coil was charged, signal source linked to each other with portable terminal 1, and spectrum analyzer links to each other with portable terminal 2; When coil was not charged, signal source linked to each other with portable terminal 2, and spectrum analyzer links to each other with portable terminal 1.By the control of computer control COM2 port realization to radio-frequency mass spectrometer.
Claims (6)
1. mobile terminal parallel radio frequency testing device, it is characterized in that comprising the CDMA signal source, spectrum analyzer, the switch matrix that is connected with spectrum analyzer with the CDMA signal source, the unit of testing and controlling that is connected with CDMA signal source, spectrum analyzer, switch matrix by gpib bus, and being connected and providing the communication DC power supply of working power with CDMA signal source, spectrum analyzer and portable terminal to be measured, 2 portable terminals to be measured are connected on the switch matrix.
2. mobile terminal parallel radio frequency testing device according to claim 1, it is characterized in that described switch matrix comprises the radio-frequency (RF) switch control circuit, the radio-frequency mass spectrometer that is connected with the radio-frequency (RF) switch control circuit, the level-conversion circuit and the radio communication path that is connected portable terminal to be measured that connect unit of testing and controlling and two serial communication signal levels of portable terminal to be measured, and the spectrum analyzer port and the signal source port that connect spectrum analyzer and signal source respectively.
3. according to claim 1 or 2 described mobile terminal parallel radio frequency testing devices, it is characterized in that the radio-frequency mass spectrometer in the switch matrix is a double-pole switch, one end of double-pole switch connects spectrum analyzer port and signal source port, and the other end connects 2 prevention at radio-frequency port that insert portable terminal to be measured.
4. mobile terminal parallel radio frequency testing device according to claim 3 is characterized in that double-pole switch adopts the relay switch that has coupling coil.
5. mobile terminal parallel radio frequency testing device according to claim 1 is characterized in that the serial ports of unit of testing and controlling by being connected with switch matrix, the connection transition status of double-pole switch in the control switch matrix.
6. according to claim 1 or 2 described mobile terminal parallel radio frequency testing devices, it is characterized in that connecting in the switch matrix unit of testing and controlling and finish 12V with the level-conversion circuit of two serial communication signal levels of portable terminal to be measured and change to the signal level of 3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201249535U CN2847704Y (en) | 2005-11-21 | 2005-11-21 | Movable terminal parallel radio frequency detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201249535U CN2847704Y (en) | 2005-11-21 | 2005-11-21 | Movable terminal parallel radio frequency detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2847704Y true CN2847704Y (en) | 2006-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201249535U Expired - Fee Related CN2847704Y (en) | 2005-11-21 | 2005-11-21 | Movable terminal parallel radio frequency detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2847704Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868464A (en) * | 2012-09-14 | 2013-01-09 | 青岛海信移动通信技术股份有限公司 | Consistency testing system and method of communication terminals |
| CN103825667A (en) * | 2014-03-10 | 2014-05-28 | 南京软仪测试技术有限公司 | Parallel test method for WIFI (Wireless Fidelity) modules |
| CN103929257A (en) * | 2014-04-28 | 2014-07-16 | 信亚美科（南京）信息技术有限公司 | Radar dynamic frequency selection test system |
| CN106162678A (en) * | 2014-11-25 | 2016-11-23 | 华壹生活科技股份有限公司 | The test device of connection mode and method of testing thereof |
-
2005
- 2005-11-21 CN CNU2005201249535U patent/CN2847704Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868464A (en) * | 2012-09-14 | 2013-01-09 | 青岛海信移动通信技术股份有限公司 | Consistency testing system and method of communication terminals |
| CN103825667A (en) * | 2014-03-10 | 2014-05-28 | 南京软仪测试技术有限公司 | Parallel test method for WIFI (Wireless Fidelity) modules |
| CN103825667B (en) * | 2014-03-10 | 2015-12-30 | 南京软仪测试技术有限公司 | A kind of method of concurrent testing WIFI module |
| CN103929257A (en) * | 2014-04-28 | 2014-07-16 | 信亚美科（南京）信息技术有限公司 | Radar dynamic frequency selection test system |
| CN106162678A (en) * | 2014-11-25 | 2016-11-23 | 华壹生活科技股份有限公司 | The test device of connection mode and method of testing thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |