CN101355395A - Method and system for testing electric products with function of receiving broadcast signal - Google Patents
Method and system for testing electric products with function of receiving broadcast signal Download PDFInfo
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- CN101355395A CN101355395A CNA2008101197172A CN200810119717A CN101355395A CN 101355395 A CN101355395 A CN 101355395A CN A2008101197172 A CNA2008101197172 A CN A2008101197172A CN 200810119717 A CN200810119717 A CN 200810119717A CN 101355395 A CN101355395 A CN 101355395A
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Abstract
The invention discloses a method for testing an electric product with the function of receiving broadcasting signals and a system thereof, which is applied to the quality test of the electric product with the function of receiving broadcasting signals. The method comprises the following steps: (a)a sending terminal sends out data containing frames with preset functional relation; (b)a receiving terminal receives the data, and the receiving terminal is connected with the electric product; (c) the received data is compared with the sending data, if both data are the same, the electric product is qualified; if both data are different, the electric product is disqualified, wherein the preset functional relation is the increasing or decreasing relation. Because each bit of the received data is analyzed and compared, the test accuracy and the test efficiency are improved.
Description
Technical field
The present invention relates to the field tests of electronic product before dispatching from the factory, especially a kind of method of testing and system of the electronic installation of realizing by novel code stream with function of receiving broadcast signal.
Background technology
All need before electronic product with function of receiving broadcast signal dispatches from the factory such as mobile phone, portable terminal or the like test, verify whether be working properly, whether qualified the receiving function of its terminal.General method of testing is to send fixing program source by testing equipment, this program source is the normal signal of NOT logic, such as being sound and/or vision signal, watching demonstration or listen to played sound signal at screen by operating personnel then, to finish checking by loudspeaker.For example brand is that the IFR2023B of IFR and the transmitter of the HP8648C that brand is Hewlett-Packard all are such legacy transmission devices.
But, exist a lot of not enough in the method for testing of above prior art, at first be that measuring accuracy is difficult to guarantee, because audio-video signal can make a mistake owing to surrounding environment influence, and even some deviations have taken place, if just by the mode that artificial naked eyes are watched or ear is listened, also be difficult to the discovery signal and make mistakes, so just can not reach the performance index of production line test fully.Secondly, need consumed time oversize by personnel's mode, the test of a general equipment needs 1 minute at least, and efficient is too low, is unfavorable for automated production.Once more, this method of testing statistics can not be carried out further data analysis less than data volume that receives and wrong data volume.
Summary of the invention
The purpose of this invention is to provide a kind of method and system, be used for test, not only improved measuring accuracy, but also had high efficiency electronic product with function of receiving broadcast signal.
To achieve these goals, the present invention proposes following two technical schemes:
At first be a kind of method of testing, be used for the electronic product with function of receiving broadcast signal is carried out quality test, may further comprise the steps with electronic product of function of receiving broadcast signal:
A, send the data that comprise frame from transmitting terminal with predefined function relation;
B, receive described data at receiving terminal, described receiving terminal is connected with described electronic product;
C, the data that received and the data of being launched are compared, and judge whether electronic product is qualified.
Wherein said predefined function relation is the function or the Fibonacci number array function of the function that increases progressively logical order, the logical order of successively decreasing.
The emission of wherein said step a may further comprise the steps:
The data that a1, appointment will be launched;
A2, launch described data;
A3, judge whether to stop the emission? be just to finish emission, otherwise get back to step a1.
The reception of wherein said step b may further comprise the steps:
B1, read and the signal strength signal intensity of judging described reception whether in normal range (NR), normal words continue next step, otherwise the prompting failure.
Do you b2, judge whether interrupt status normal? normal words continue next step, otherwise the prompting failure.
Before step b1, also comprise a step that operating frequency is set, will transmit and receive two ends and keep same frequency.
Wherein said step c may further comprise the steps:
C1, judge that whether each data receive are the start bits of the frame predesignated; The words that are continue, otherwise get back to step c1;
C2, find the length of the data that obtain comprising in the frame after the start bit of described frame, and judge whether to surpass the length of a frame; The words that are continue, otherwise get back to step c1;
If c3 is in the length range of a frame then judge the predetermined logic order of described emission data;
C4, whether the data and the data of described emission of judging described reception according to described predetermined logic are in proper order compared each data identical;
C5: judge whether to surpass the testing time,, otherwise get back to step c1 if surpass the testing time then finish data relatively;
C6: finish data relatively after with in the following manner a kind of of the test result of electronic product acceptance or rejection or it is in conjunction with showing: screen text, figure, color, sound and combination thereof.
Wherein saidly judge whether qualified step comprises product: it is qualified that the misdata of receiving is at the appointed time just thought less than a predetermined value, otherwise think defective.
The invention allows for a kind of test macro, comprise with lower module with electronic product of function of receiving broadcast signal:
A, send the module that comprises data from transmitting terminal with frame that predefined function closes;
B, receive the module of described data at receiving terminal, described receiving terminal is connected with described electronic product;
C, the data that received and the data of being launched are compared and judge the module that electronic product is whether qualified.
Wherein said predefined function relation is the function or the Fibonacci number array function of the function that increases progressively logical order, the logical order of successively decreasing.
Described module a comprises:
The module of the data that a1, appointment will be launched;
The module of a2, the described data of emission;
A3, judge whether to be the module that stops to launch, just finish emission, otherwise get back to module a1.
The reception of described module b comprises:
B1, read and the signal strength signal intensity of the judging described reception module in normal range (NR) whether, normal words continue next module, otherwise the prompting failure;
Whether normal b2, judge interrupt status module, normal words continue next module, otherwise the prompting failure.
Before module b1, also comprise a module that operating frequency is set, will transmit and receive two ends and keep same frequency.
Described module c comprises:
C1, judge that whether each data receive are the modules of the start bit of the frame predesignated; The words that are continue, otherwise get back to module c1;
C2, find the module of the length of the data that obtain comprising in the frame after the start bit of described frame, and judge whether to surpass the length of a frame; The words that are continue, otherwise get back to module c1;
If c3 is in the length range of a frame then judge the module of the predetermined logic order of described emission data;
Whether identical c4, the data of judging described reception according to described predetermined logic in proper order compare each data module with the data of described emission.
C5: judge whether to surpass the testing time,, otherwise get back to module c1 if surpass the testing time then finish data relatively.
C6: finish data relatively after with in the following manner a kind of of the test result of electronic product acceptance or rejection or it is in conjunction with showing: screen text, figure, color, sound and combination thereof.
Wherein saidly judge whether qualified module comprises product: it is qualified that the misdata of receiving is at the appointed time just thought less than a predetermined value, otherwise think defective.
Method of testing and system with electronic product of function of receiving broadcast signal of the present invention has the following advantages:
Owing to come the audio-video signal of received signal generator emission with test program, can analyze contrast by turn to the data that received, can improve the precision of test like this, help carrying out the analysis of test data, owing to adopted code stream to test with logical construction, if so make mistakes, program can show corresponding error information, can accurately navigate to signal is whom begins to have taken place mistake from, and operating personnel can directly read the mistake that is taken place easily from the screen of test product.Secondly, owing to adopted the corresponding software system on testing equipment and tested product, greatly shortened the testing time, the testing time just can finish at 20 seconds, and testing efficiency improves greatly.Also have, can count on the data volume and the wrong data volume that receive accurately, contrast the data of making a start with receiving terminal, can be as the basis of problem analysis.
Description of drawings
Fig. 1 is the test macro entity structure schematic diagram with electronic product of function of receiving broadcast signal of the present invention;
Fig. 2 is the transmitting terminal test flow chart with electronic product of function of receiving broadcast signal of the present invention;
Fig. 3 is the receiving terminal test flow chart with electronic product of function of receiving broadcast signal of the present invention;
Fig. 4 is the test macro functional-block diagram with electronic product of function of receiving broadcast signal of the present invention;
Fig. 5 is the detailed comparison flow chart of the receiving terminal of electronic product of the present invention for the header of the frame of test signal;
Fig. 6 a is the frame header of test signal of the function of the logical order that increases progressively sent of transmitting terminal;
Fig. 6 b is the frame header of the test signal of the existence mistake that receives of receiving terminal;
Fig. 6 c is the frame header of the test signal of the Fibonacci sequence that sends of transmitting terminal.
Embodiment
Please see Figure 1, be the test macro entity structure schematic diagram with electronic product of function of receiving broadcast signal of the present invention.System of the present invention comprises the two large divisions: sender unit 10 and several signal receiving devices 20.
Transmitting terminal PC 11, store the binary code stream that has transmitting terminal launching procedure and comprising of being used for testing the predefined function relation, the form of transmitting terminal PC 11 also is various, such as being the V3803T of Hewlett-Packard notebook or the Think Station S10 of association server or the like.
Special test signal generator 12, be responsible for receiving the signal bit stream that sends by transmitting terminal PC 11 and carrying out digital coding, carry out digital-to-analogue conversion again, carry out the signal modulation then, the signal of modulation is delivered to power amplifier amplify, transmitting terminal PC 11 can communicate by USB line, far infrared or the like mode with special test signal generator 12;
Power splitter 14 is responsible for sending the signal of multichannel, will guarantee that wherein each road signal strength signal intensity and quality are the same so that every road signal can be connected the signal receiving device 20 of a needs test.Comprise binary code stream respectively in each this signal with certain logical order.
Signal receiving device 20 is installed in the tested electronic product with function of receiving broadcast signal, this electronic product can comprise mobile phone, PDA (Personal Digital Assistant, palmtop PC), PMP (Portable Multimedia Player can store the portable electronic devices with the play multimedia archives), SD Dongle receiving card (be similar to the SD card can received tv broadcast signal product), USBDongle receives rod (but being similar to USB flash disk equipment that can receiving broadcast signal), GPS navigation equipment (promptly installed can the received television signal chip GPS navigation equipment, vehicle GPS etc.).Each signal receiving device 20 inside comprises a storage device (not shown), stores receiving terminal test program and binary code stream in this storage device, and the code stream that sends with power splitter 14 has the identity logic order.This code stream is whether the electronic product that is used to test before dispatching from the factory has normal function.
In one embodiment, in the system of the present invention, the connection between signal generator 12 and the signal attenuator 13, between signal attenuator 13 and the power splitter 14, between power splitter 14 and the signal receiving device 20 all realizes the connection of signal by radio frequency line.Certainly, also can guarantee that the mode of communication connects in other embodiments by any.For the effect that guarantees to receive, can fix a frequency at test signal transmitting terminal and test lead, reflector sends signal according to fixing frequency, and this frequency can be 754MHz in one embodiment, and receiving terminal receives with the frequency of software setting correspondence.For the correctness that as far as possible guarantees to receive, generally adopt closed loop promptly the output of power splitter to be directly connected to method of testing on the testing equipment.
Describe the present invention below in conjunction with accompanying drawing in detail from the angle of test program.
At first please see Figure 2, be the transmitting terminal test flow chart with electronic product of function of receiving broadcast signal of the present invention.
Step 202, the data source that appointment will be launched.Storing a plurality of data sources at transmitting terminal PC 11, please also refer to Fig. 6 a, is the header schematic diagram of a frame sending of transmitting terminal.The data source that this frame promptly will be launched, it is the code stream that has predefined function relation, and this functional relation can be that the function of the function of the logical order that increases progressively, the logical order of successively decreasing or Fibonacci number array function or other have the data of certain logical order.The logical order that increases progressively is exactly that previous numeral is added 1, as a back numeral, and f (1)=1, f (2)=f (1)+1, f (n)=f (n-1)+1, n＞=1, ordered series of numbers is: 0,1,2,3.... is referring to Fig. 6 a; The logical order of successively decreasing is previous data minus 1, as a back numeral, and f (1)=N (initial number arbitrarily), f (2)=f (1)-1, f (n)=f (n-1)-1, (not shown); In another embodiment, the test signal of the Fibonacci sequence that transmitting terminal sends, the Fibonacci number array function is since the 3rd, each all equals preceding two sums, f (1)=1, f (2)=1 f (n)=f (n-1)+f (n-2), n＞=2 wherein, an ordered series of numbers that comes to this: 1,1,2,3,5,8,13,21,34, the frame header of the test signal of Fibonacci sequence sees also Fig. 6 c.
In the embodiment of Fig. 6 a, frame is the code stream that increases progressively.Certainly, need to prove here that predetermined logic order of the present invention can also comprise other many kinds, as successively decreases, odd number, even number or the like, all should be contained among the present invention so long as can reach the logical order of the purpose that can be identified.
Does step 204 stop emission? be just to forward step 205 to and finish, otherwise get back to step 203.
Fig. 3 is the receiving terminal test flow chart with electronic product of function of receiving broadcast signal of the present invention.
Step 301 beginning will be carried out receiving terminal software startup and necessary preparation in this step, such as judging whether electronic product is directly connected on the output of power splitter or the like.
Step 302 is provided with operating frequency, as previously mentioned, transmits and receives two ends and will keep same frequency, and in one embodiment, these two frequencies all are arranged to 754MHz.
Step 303 reads signal strength signal intensity, will set the scope of a signal strength signal intensity in the time of test earlier, if the signal strength signal intensity that obtains within the range of permission, just thinks to test and passes through, otherwise think and do not pass through.According to system design, as long as the fixedly register (not shown) address of visit received television signal chip, just can read current signal intensity, in testing software, pass through call driver, read the value of register, value that reads and the predefined value of test macro are compared, if within scope, just think normal, on the contrary mistake then.If such as predefined value in-80dBm ± 5, promptly at-75dBm in-85dBm scope, if the value that reads is-82dBm that then test is passed through.
Does step 309 continue test? be, get back to the test that step 302 continues next product, finish otherwise directly forward step 310 to.
Method of the present invention is summarized in conjunction with the example of detection of handset product below with reference to Fig. 4, Fig. 4 is the test macro functional-block diagram with electronic product of function of receiving broadcast signal of the present invention.System of the present invention is divided into 4 modules:
Data are sent to module 402 like this, and module 402 receives data module for receiving terminal, in this module, after on tested electronic product, installing testing software, be connected on the mobile phone to be measured with the closed loop ways of connecting, the operation test program, above-mentioned data are received.
Next be judge module 403, in this module, whether and the data consistent of predesignating test program can judge the data received, if identical then think that the data that receive are normal, on the contrary then think the reception mistake.Example shown in Fig. 6 b has just illustrated that the data that receive are wrong, the promptly tested quality problems that exist.
Please see reminding module 404 at last, if the data source that bit stream data that receiving terminal receives and transmitting terminal send contrast back is found inconsistent, program will be reported to the police, prompting operation person notes, this product has problem, the mode of reporting to the police is multiple, such as screen text graphical display, sound, light or the like, repeats no more.
The detailed step of above-mentioned module 402～404 can be simultaneously referring to the content of Fig. 3.
In order to illustrate method of the present invention is how to make judgement at judge module 403, provide the example of receiving terminal below earlier to the increment signal test.Please also refer to Fig. 5 is the detailed comparison flow chart of the receiving terminal of electronic product of the present invention for the header of the frame of test signal.The judgement flow process that Fig. 5 describes also can be simultaneously referring to the step 306 of Fig. 3.
Step 502 judges that whether each that receive is the start bit of the frame predesignated, just thinks that a frame has begun if receive the 0x02000000 that provides as Fig. 6 a, judges otherwise receive data always;
Whether the length that step 504, judgment frame comprise data is correct, and the length that comprises data here is 0xF9D7, if mistake just thinks that the data that receive are incorrect, then returns step 501;
Step 506: judge whether to surpass the length that comprises data in the frame, among this embodiment, if the data length that receives does not surpass 0xF9D7, data from the 0x00-0xFF circulation, if surpassed, are exactly the beginning of a new frame successively so so;
Step 507: whether the data of judging each are correct.Because the test signal in the present embodiment increases progressively, shown in Fig. 6 a, data can begin to circulate to 0xFF from 0x00 so, since first, receiving terminal with regard to knowing that the data that receive are 0x00, just praises if the data of receiving are 0x00 in advance, otherwise then misjudgment.Second must be 0x01, and every adds 1 successively, and then judges.For example last position of Fig. 6 b should be 0x08 according to logical order originally, and that still receive but is 0xAB, just the explanation reception is wrong for that, occurs will reporting to the police under the wrong situation, and type of alarm can be identical with prompting mode, the front has illustrated, repeats no more;
Does step 508 judge whether to surpass the testing time? before test, generally all need to be provided with earlier the time of a test, generally more than 5 seconds, the too short data of receiving of time are not enough to carry out data and judge very little, when finding to have surpassed the testing time, just finish data relatively.Otherwise continuing to receive data analyzes;
Step 509 is finished data relatively, and end data receives.
The above-mentioned described example that is receiving terminal to the increment signal test is below described the example that the frame that successively decreases is tested.
Other steps are all identical with the embodiment that increases progressively, and only 506,507 following difference arranged in steps:
Step 506 does not surpass 0xF9D7 if receive data length, and data circulate from 0xFF to 0x00 successively so.If surpass the length 0xF9D7 of data, can be the beginning of the new frame of another one so;
Example when adopting the Fibonacci number array function in addition:
Other steps are all identical with the example that increases progressively, only in steps 506,507 have any different slightly, in step 506, still to judge whether to surpass the length that comprises data in the frame, judge among two embodiment of this and front in fact and increase progressively, to comprise the length of data be as broad as long to frame when successively decreasing data, here judgment frame comprises the length of data, not influence of functional relation to data, such as the data length that comprises here is 100, complete the data so here no matter be 1, are gone back person complete 0, perhaps be integer entirely, perhaps decimal as long as length is 100, all is identical.In step 507, be that each data is judged, if the Feibolaqi ordered series of numbers time, the data that increase progressively can be: 1,1,2,3,5,8,13,21...., the data of successively decreasing can be, suppose to successively decrease from the tenth, be 55,34 so, 21,13,8,5,3,2,1,1.
In addition, in the present invention, whether qualified for product judgement, it is qualified that the misdata of receiving is at the appointed time just thought less than a predetermined value, otherwise think defective.For example suppose the 100 myriabit data received within 5 seconds, the figure place of mistake just thinks qualified less than 3 * 10-6, as long as wrong data are less than this standard in official hour, just can think that product is qualified.
In sum, method of testing of the present invention and system accuracy height, even can be as accurate as concrete position, and be convenient to do data analysis simultaneously, can add up the data sum and the wrong data that receive at any time, be used for calculating the error rate.
Though the present invention reference specific embodiment wherein is described, those skilled in the art still can carry out a lot of accommodations, improves or the like.Only otherwise exceed spirit of the present invention, all should be within the scope of the invention.
Claims (18)
1. the method for testing with electronic product of function of receiving broadcast signal is used for the electronic product with function of receiving broadcast signal is carried out quality test, it is characterized in that: may further comprise the steps:
A, send the data that comprise frame from transmitting terminal with predefined function relation;
B, receive described data at receiving terminal, described receiving terminal is connected with described electronic product;
C, the data that received and the data of being launched are compared, and judge whether electronic product is qualified.
2. the method for claim 1 is characterized in that: described predefined function relation is the function or the Fibonacci number array function of the function that increases progressively logical order, the logical order of successively decreasing.
3. method as claimed in claim 1 or 2 is characterized in that: the emission of described step a may further comprise the steps:
The data that a1, appointment will be launched;
A2, launch described data;
A3, judge whether to stop the emission? be just to finish emission, otherwise get back to step a1.
4. method as claimed in claim 1 or 2 is characterized in that: the reception of described step b may further comprise the steps:
B1, read and the signal strength signal intensity of judging described reception whether in normal range (NR), normal words continue next step, otherwise the prompting failure;
Do you b2, judge whether interrupt status normal? normal words continue next step, otherwise the prompting failure.
5. method as claimed in claim 4 is characterized in that: also comprise a step that operating frequency is set before the step b1, will transmit and receive two ends and keep same frequency.
6. method as claimed in claim 1 or 2 is characterized in that: described step c may further comprise the steps:
C1, judge that whether each data receive are the start bits of the frame predesignated; The words that are continue, otherwise get back to step c1;
C2, find the length of the data that obtain comprising in the frame after the start bit of described frame, and judge whether to surpass the length of a frame; The words that are continue, otherwise get back to step c1;
If c3 is in the length range of a frame then judge the predetermined logic order of described emission data;
C4, whether the data and the data of described emission of judging described reception according to described predetermined logic are in proper order compared each data identical.
7. method as claimed in claim 6 is characterized in that: also comprise step c5 behind the described step c4: judge whether to surpass the testing time, if surpass the testing time then finish data relatively, otherwise get back to step c1.
8. method as claimed in claim 7 is characterized in that: also comprise step c6 behind the described step c5: finish data relatively after with in the following manner a kind of of the test result of electronic product acceptance or rejection or it is in conjunction with showing: screen text, figure, color, sound and combination thereof.
9. the method for claim 1 is characterized in that: describedly judge whether qualified step comprises product: it is qualified that the misdata of receiving is at the appointed time just thought less than a predetermined value, otherwise think defective.
10. the test macro with electronic product of function of receiving broadcast signal adopts and as the arbitrary method among the claim 1-8 electronic product with function of receiving broadcast signal is carried out quality test, and it is characterized in that: described system comprises with lower module:
A, send the module of the data that comprise frame from transmitting terminal with predefined function relation;
B, receive the module of described data at receiving terminal, described receiving terminal is connected with described electronic product;
C, the data that received and the data of being launched are compared and judge the module that electronic product is whether qualified.
11. system as claimed in claim 10 is characterized in that: described predefined function relation is the function or the Fibonacci number array function of the function that increases progressively logical order, the logical order of successively decreasing.
12. as claim 10 or 11 described systems, it is characterized in that: described module a comprises:
The module of the data that a1, appointment will be launched;
The module of a2, the described data of emission;
A3, judge whether to be the module that stops to launch, just finish emission, otherwise get back to module a1.
13. as claim 10 or 11 described systems, it is characterized in that: the reception of described module b comprises:
B1, read and the signal strength signal intensity of the judging described reception module in normal range (NR) whether, normal words continue next module, otherwise the prompting failure;
Whether normal b2, judge interrupt status module, normal words continue next module, otherwise the prompting failure.
14. system as claimed in claim 13 is characterized in that: also comprise a module that operating frequency is set before the described module b1, will transmit and receive two ends and keep same frequency.
15. as claim 10 or 11 described systems, it is characterized in that: described module c comprises:
C1, judge that whether each data receive are the modules of the start bit of the frame predesignated; The words that are continue, otherwise get back to module c1;
C2, find the module of the length of the data that obtain comprising in the frame after the start bit of described frame, and judge whether to surpass the length of a frame; The words that are continue, otherwise get back to module c1;
If c3 is in the length range of a frame then judge the module of the predetermined logic order of described emission data;
Whether identical c4, the data of judging described reception according to described predetermined logic in proper order compare each data module with the data of described emission.
16. system as claimed in claim 15 is characterized in that: also comprise module c5 behind the described module c4: judge whether to surpass the testing time,, otherwise get back to module c1 if surpass the testing time then finish data relatively.
17. system as claimed in claim 16 is characterized in that: also comprise module c6 behind the described module c5: finish data relatively after with in the following manner a kind of of the test result of electronic product acceptance or rejection or it is in conjunction with showing: screen text, figure, color, sound and combination thereof.
18. method as claimed in claim 10 is characterized in that: describedly judge whether qualified module comprises product: it is qualified that the misdata of receiving is at the appointed time just thought less than a predetermined value, otherwise think defective.
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| CNA2008101197172A CN101355395A (en) | 2008-09-05 | 2008-09-05 | Method and system for testing electric products with function of receiving broadcast signal |
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| CNA2008101197172A CN101355395A (en) | 2008-09-05 | 2008-09-05 | Method and system for testing electric products with function of receiving broadcast signal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079686A1 (en) * | 2009-12-29 | 2011-07-07 | 北京世纪高通科技有限公司 | Method and apparatus for testing dynamic traffic information broadcasting system |
| CN105635723A (en) * | 2014-11-04 | 2016-06-01 | 北京四达时代软件技术股份有限公司 | Front-end system, system and method for testing CMMB product signal reception performance |
| CN106817631A (en) * | 2017-01-18 | 2017-06-09 | 广州碧德电子科技有限公司 | Wireless communication module Aulomatizeted Detect instrument and method |
| WO2017193772A1 (en) * | 2016-05-11 | 2017-11-16 | 晶晨半导体(上海)有限公司 | System and method for automatically testing performance of dtmb |
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2008
- 2008-09-05 CN CNA2008101197172A patent/CN101355395A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079686A1 (en) * | 2009-12-29 | 2011-07-07 | 北京世纪高通科技有限公司 | Method and apparatus for testing dynamic traffic information broadcasting system |
| CN101795165B (en) * | 2009-12-29 | 2012-06-27 | 北京世纪高通科技有限公司 | Test method and device of dynamic traffic information broadcasting system |
| CN105635723A (en) * | 2014-11-04 | 2016-06-01 | 北京四达时代软件技术股份有限公司 | Front-end system, system and method for testing CMMB product signal reception performance |
| CN105635723B (en) * | 2014-11-04 | 2017-11-07 | 北京四达时代软件技术股份有限公司 | Test front end system, the system and method for CMMB product signal receptivities |
| WO2017193772A1 (en) * | 2016-05-11 | 2017-11-16 | 晶晨半导体(上海)有限公司 | System and method for automatically testing performance of dtmb |
| CN106817631A (en) * | 2017-01-18 | 2017-06-09 | 广州碧德电子科技有限公司 | Wireless communication module Aulomatizeted Detect instrument and method |
| CN106817631B (en) * | 2017-01-18 | 2020-02-18 | 广州碧德电子科技有限公司 | Automatic detection method for wireless communication module |
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