CN201260174Y - Wireless broadcast terminal test device suitable for batch product test - Google Patents
Wireless broadcast terminal test device suitable for batch product test Download PDFInfo
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- CN201260174Y CN201260174Y CNU2008201094025U CN200820109402U CN201260174Y CN 201260174 Y CN201260174 Y CN 201260174Y CN U2008201094025 U CNU2008201094025 U CN U2008201094025U CN 200820109402 U CN200820109402 U CN 200820109402U CN 201260174 Y CN201260174 Y CN 201260174Y
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Abstract
The utility model discloses a radio broadcast terminal test equipment applicable to batch product test, which comprises a testing signal generator for processing acquired data sources to radio-frequency signals with preset strength for testing, a signal attenuator for attenuating the received radio-frequency signals with preset strength, and a power divider for uniformly copying attenuated radio-frequency signals to multipath radio-frequency signals of which the signal strength meets the requirements of the radio broadcast terminal, wherein the radio-frequency signals are respectively transmitted to respectively-connected radio broadcast terminal to be tested by radio-frequency lines. The radio broadcast terminal test equipment can simultaneously test multiple radio broadcast equipment once, greatly increases test speed, and is favorable to batch product tests. Moreover, the data sources are memorized in a PC, so the size of the data sources cannot be restricted by the own capacity of the test signal generator.
Description
Technical field
The utility model relates to wireless broadcast technologies, refers to a kind of wireless broadcast terminal test equipment that carries out the bulk article test in the production that is applicable to especially.
Background technology
The radio broadcasting terminal is after producing (volume production) in batches, for the quality and the performance of the product that guarantees to dispatch from the factory, to the production line test of the batch radio broadcasting end product link that is absolutely necessary.In the bulk article test, main test event relates to the receiving sensitivity of product and the key property of product.
At present, utilize signal generator to realize producing the line products test.Signal generator is as the testing equipment of radio broadcasting equipment, and its operation principle is roughly: in signal generator, and the data source of the usefulness of storage test in advance; Data source transmitted with radiofrequency signal and decay after obtain meeting the radiofrequency signal of the signal strength signal intensity of test subscriber's demand; The radiofrequency signal that will obtain after decay sends to the radio broadcasting terminal at last.For the radio broadcasting terminal, can export an output signal corresponding with the radiofrequency signal that receives, whether the tester can meet the requirement of product key property index by judging output signal, finishes the test to the radio broadcasting terminal.
From existing wireless broadcast terminal test, signal generator is an external radio broadcasting testing equipment simultaneously once, and this has caused test speed very slow undoubtedly, is unfavorable for the bulk article test, thereby influences volume production in enormous quantities; In addition, data source is stored in the signal generator, be subjected to the restriction of signal generator self capacity, do not allow data source very big, and, because a kind of hardware module in the signal generator can only support to launch the form of data limitedly, the form of data source output also is subjected to the influence of signal generator hardware, and signal generator can only be realized by increasing or changing hardware module in order to support the more data form, has increased the equipment cost of signal generator.
To sum up, existing utilize signal generator to realize producing line products to test, not only test speed is slow, and signal generator costs an arm and a leg, and has increased cost for the product mass production, has wasted human and material resources.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of wireless broadcast terminal test equipment that is applicable to the bulk article test, can improve production line test speed in batches, and with low cost.
For achieving the above object, the technical solution of the utility model specifically is achieved in that
A kind of wireless broadcast terminal test equipment comprises: measuring signal generator, signal attenuator and power splitter, wherein,
Measuring signal generator, be used for obtaining data source, under control, data source be processed into the radiofrequency signal of preset strength and send signal attenuator to by radio frequency line from the control information of wireless broadcast terminal test equipment outside from the wireless broadcast terminal test equipment outside;
Signal attenuator after being used for radiofrequency signal to the preset strength that receives and decaying, obtains meeting the radiofrequency signal of the signal strength signal intensity of radio broadcasting terminal requirements to be measured, sends this radiofrequency signal to power splitter by radio frequency line again;
Power splitter is used for the radiofrequency signal after the decay balancedly is copied into the radiofrequency signal that multiple signals intensity satisfies radio broadcasting terminal requirements to be measured, and sends the radio broadcasting terminal to be measured that connects separately to by radio frequency line respectively.
Described wireless broadcast terminal test equipment also comprises data-source device, is used to store described data source, and control information is set, and data-source device is connected with described measuring signal generator by communication interface.
Described data-source device is PC, perhaps industrial computer.
Described communication interface comprises data-interface and control information interface;
Described data-interface is the general-purpose serial bus USB interface;
Described control information interface is a parallel interface, or the URAT serial line interface.
Described measuring signal generator comprises: control module, coding module, D/A switch module, modulation module, amplification module, data-interface and control information interface, wherein,
Control module is used for controlling the co-ordination of each module of measuring signal generator and interface, and respectively corresponding module is provided with according to the control information from the control information interface;
Data-interface is used to read described data source;
The control information interface is used to receive described control information;
Coding module is used for the data source from data-interface is encoded, so that it meets the protocol format requirement of measuring signal generator;
The D/A switch module, the digital signal that is used for own coding module in future is converted to analog signal, and sends to modulation module;
Modulation module sends to amplification module after the analog signal modulation that is used for receiving;
Amplification module after being used for according to the parameter that sets in advance the signal from modulation module being amplified, is exported the radiofrequency signal of described preset strength and is given described signal attenuator.
Described coding module adopts programmable logic device to realize.
Described programmable logic device is programmable gate array FPGA, perhaps complex programmable logic device (CPLD) at the scene.
Described power splitter is the power splitter of 1:4.
As seen from the above technical solution, wireless broadcast terminal test equipment of the utility model is external many radio broadcasting testing equipments simultaneously once, this has improved test speed undoubtedly, be beneficial to the bulk article test, thereby guaranteed the volume production in enormous quantities of radio broadcasting terminal, the production line test when the utility model wireless broadcast terminal test equipment is suitable for large, medium and small enterprise production in enormous quantities radio broadcasting end product; And because the memory space of PC is very big, so the size of data source also can not be subjected to the restriction of measuring signal generator self-capacity; In addition, measuring signal generator can pass through software programming various protocols form, improved the adaptability of wireless broadcast terminal test equipment, can certainly only support a kind of radio broadcasting terminal of protocol format, greatly reduce the cost of testing equipment like this, change into this thereby reduced the product volume production, saved human and material resources.
Description of drawings
Fig. 1 is the composition structural representation of the utility model wireless broadcast terminal test equipment;
Fig. 2 is the composition structural representation of measuring signal generator in the utility model wireless broadcast terminal test equipment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Fig. 1 is the composition structural representation of the utility model wireless broadcast terminal test equipment, as shown in Figure 1, comprising: data-source device, measuring signal generator, signal attenuator and power splitter, wherein,
Data-source device is used to store the data source of testing usefulness, reads by data-interface such as USB (USB, Universal Serial Bus) interface signal-under-test generator; And be used for by control information interface such as parallel interface or URAT serial line interface control information being set, as relevant configuration such as the frequency of measuring signal generator, initial powers.Data-source device can be PC, industrial computer etc.Need to prove because that PC, industrial computer etc. use is quite universal, therefore, in actual wireless broadcast terminal test equipment product is sold, PC can be not as the part of wireless broadcast terminal test equipment.In addition, the setting of the control information that how to realize measuring signal generator is belonged to this area conventional techniques means, repeat no more here.
Measuring signal generator is used for obtaining data source from data-source device, under the control of control information data source is encoded, signal processing such as D/A switch, modulation, and behind amplifier, sends signal attenuator to the radiofrequency signal of preset strength.Measuring signal generator can only be supported a kind of radio broadcasting terminal of protocol format, can reduce the cost of testing equipment so greatly.Certainly, when guaranteeing the restriction cost, also can allow measuring signal generator support protocol format as much as possible such as CMB, DVB, ISDB etc., so that it is fit to the radio broadcasting terminal of different agreement is tested to greatest extent.
Signal attenuator after being used for radiofrequency signal to the preset strength that receives and decaying, obtains meeting the radiofrequency signal to be tested of the signal strength signal intensity of test subscriber's demand, sends this radiofrequency signal to power splitter again.
By the setting of URAT serial line interface, the signal strength range of wireless broadcast terminal test equipment output signal is 0-30dbm normally, and stepping is 1dbm; The signal strength range of signal attenuator is 0-91dbm normally, stepping 1dbm.The signal strength signal intensity of the signal strength signal intensity+attenuator of the signal strength signal intensity=output signal of signal so, to be tested+power splitter interpolation (fixing-7dbm).
Power splitter, the radiofrequency signal that is used for receiving balancedly is copied into the radiofrequency signal that multiple signals intensity is met consumers' demand, and sends to many external radio broadcasting terminals to be measured respectively.According to the design such as the 1:4 of power splitter, can satisfy usually simultaneously four radio broadcasting terminals are tested, also can be the power splitter that adopts 1:6,1:8 etc., simultaneously six, eight or more radio broadcasting terminals are tested.Certainly, the wireless broadcast terminal test equipment that provides of the utility model can be tested a radio broadcasting terminal to be measured naturally.In order to guarantee the equilibrium of each road signal that power splitter is exported, need export each road signal to power splitter usually and mate, the implementation method of coupling is a lot, is not used in restriction the utility model wireless broadcast terminal test equipment.
As shown in Figure 1, be connected by radio frequency line respectively between measuring signal generator and signal attenuator, signal attenuator and power splitter, power splitter and the radio broadcasting terminal to be measured.Wireless broadcast terminal test equipment is exported i.e. first test signal～the 4th test signal of four drive test trial signals, each test signal sends first radio broadcasting terminal to be measured～4 radio broadcasting terminal to be measured respectively to, like this, wireless broadcast terminal test equipment has been realized once external 4 radio broadcasting testing equipments simultaneously.By example shown in Figure 1 as seen, the utility model wireless broadcast terminal test equipment, only need once set needed signal strength values, can test simultaneously, realize low-cost, production line test fast and efficiently four wireless terminal products of product line.
From the utility model wireless broadcast terminal test equipment shown in Figure 1 as seen:
Wireless broadcast terminal test equipment is external many radio broadcasting testing equipments simultaneously once, and this has improved test speed undoubtedly, is beneficial to the bulk article test, thereby has guaranteed the volume production in enormous quantities of radio broadcasting terminal;
Because the memory space of PC is very big, so the size of data source also can not be subjected to the restriction of measuring signal generator self-capacity, compares with existing testing equipment like this, increased the time of test, so that pinpoint the problems better;
Measuring signal generator can only be supported a kind of radio broadcasting terminal of protocol format, greatly reduces the cost of testing equipment like this, changes into this thereby reduced the product volume production, has saved human and material resources.
Fig. 2 is the composition structural representation of measuring signal generator in the utility model wireless broadcast terminal test equipment, as shown in Figure 2, measuring signal generator comprises control module, coding module, D/A switch module, modulation module, amplification module, data-interface and control information interface, wherein:
Control module is used for controlling the co-ordination of each module of measuring signal generator, and respectively corresponding module is provided with according to the control information from the control information interface.
Such as, according to frequency point information,, the sample frequency and the sampling width of D/A modular converter are controlled the sample frequency of control coding module from PC; Bandwidth and carrier wave to modulation module are controlled; According to initial power from PC, the power of amplification module to be controlled, may command output 0 is arrived-30dbm.
Data-interface is used for the data source used from transmitting terminal PC read test, and data-interface is a USB interface.
The control information interface is used to receive the control information from transmitting terminal PC.The control information interface can be parallel interface, URAT serial line interface etc.
Coding module is used for the data source from data-interface is encoded, so that it meets the protocol format requirement of measuring signal generator.Coding module can be by programmable logic device as programmable gate array (FPGA), CPLD (CPLD) wait and realize at the scene, adopt programmable logic device to realize, be not subjected to the restriction of hardware, can pass through software programming various protocols form, improved the adaptability of wireless broadcast terminal test equipment, during specific implementation, the various protocols form can write on respectively in the different programmable logic devices, also can write in the same programmable logic device.Coding module can only be supported a kind of radio broadcasting terminal of protocol format, can reduce the cost of testing equipment so greatly.Certainly, when guaranteeing the restriction cost, also can allow coding module support protocol format as much as possible, so that it is fit to the radio broadcasting terminal of different agreement is tested to greatest extent.
The D/A switch module is used in the future that the digital signal of own coding module is converted to analog signal, and sends to and send to amplification module after modulation module is modulated.
Amplification module after being used for according to the parameter that sets in advance the signal from modulation module being amplified, sends signal attenuator to the radiofrequency signal of preset strength.
As seen from the above technical solution, wireless broadcast terminal test equipment of the utility model is external many radio broadcasting testing equipments simultaneously once, this has improved test speed undoubtedly, be beneficial to the bulk article test, thereby guaranteed the volume production in enormous quantities of radio broadcasting terminal, the production line test when the utility model wireless broadcast terminal test equipment is suitable for large, medium and small enterprise production in enormous quantities radio broadcasting end product; And because the memory space of PC is very big, so the size of data source also can not be subjected to the restriction of measuring signal generator self-capacity; In addition, measuring signal generator can only be supported a kind of radio broadcasting terminal of protocol format, greatly reduces the cost of testing equipment like this, changes into this thereby reduced the product volume production, has saved human and material resources.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.All within spirit of the present utility model and principle, any modification of being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
1. a wireless broadcast terminal test equipment that is applicable to the bulk article test is characterized in that, comprising: measuring signal generator, signal attenuator and power splitter, wherein,
Measuring signal generator, be used for obtaining data source, under control, data source be processed into the radiofrequency signal of preset strength and send signal attenuator to by radio frequency line from the control information of wireless broadcast terminal test equipment outside from the wireless broadcast terminal test equipment outside;
Signal attenuator after being used for radiofrequency signal to the preset strength that receives and decaying, obtains meeting the radiofrequency signal of the signal strength signal intensity of radio broadcasting terminal requirements to be measured, sends this radiofrequency signal to power splitter by radio frequency line again;
Power splitter is used for the radiofrequency signal after the decay balancedly is copied into the radiofrequency signal that multiple signals intensity satisfies radio broadcasting terminal requirements to be measured, and sends the radio broadcasting terminal to be measured that connects separately to by radio frequency line respectively.
2. wireless broadcast terminal test equipment according to claim 1, it is characterized in that, described wireless broadcast terminal test equipment also comprises data-source device, be used to store described data source, and control information is set, data-source device is connected with described measuring signal generator by communication interface.
3. wireless broadcast terminal test equipment according to claim 2 is characterized in that, described data-source device is PC, perhaps industrial computer.
4. wireless broadcast terminal test equipment according to claim 3 is characterized in that, described communication interface comprises data-interface and control information interface;
Described data-interface is the general-purpose serial bus USB interface;
Described control information interface is a parallel interface, or the URAT serial line interface.
5. wireless broadcast terminal test equipment according to claim 1, it is characterized in that, described measuring signal generator comprises: control module, coding module, D/A switch module, modulation module, amplification module, data-interface and control information interface, wherein
Control module is used for controlling the co-ordination of each module of measuring signal generator and interface, and respectively corresponding module is provided with according to the control information from the control information interface;
Data-interface is used to read described data source;
The control information interface is used to receive described control information;
Coding module is used for the data source from data-interface is encoded, so that it meets the protocol format requirement of measuring signal generator;
The D/A switch module, the digital signal that is used for own coding module in future is converted to analog signal, and sends to modulation module;
Modulation module sends to amplification module after the analog signal modulation that is used for receiving;
Amplification module after being used for according to the parameter that sets in advance the signal from modulation module being amplified, is exported the radiofrequency signal of described preset strength and is given described signal attenuator.
6. wireless broadcast terminal test equipment according to claim 5 is characterized in that, described coding module adopts programmable logic device to realize.
7. wireless broadcast terminal test equipment according to claim 6 is characterized in that, described programmable logic device is programmable gate array FPGA, perhaps complex programmable logic device (CPLD) at the scene.
8. wireless broadcast terminal test equipment according to claim 1 or 5 is characterized in that described power splitter is the power splitter of 1:4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201094025U CN201260174Y (en) | 2008-07-23 | 2008-07-23 | Wireless broadcast terminal test device suitable for batch product test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201094025U CN201260174Y (en) | 2008-07-23 | 2008-07-23 | Wireless broadcast terminal test device suitable for batch product test |
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| CN201260174Y true CN201260174Y (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201094025U Expired - Lifetime CN201260174Y (en) | 2008-07-23 | 2008-07-23 | Wireless broadcast terminal test device suitable for batch product test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724007A (en) * | 2012-06-29 | 2012-10-10 | 青岛海信移动通信技术股份有限公司 | Test method and test device of communication terminals |
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2008
- 2008-07-23 CN CNU2008201094025U patent/CN201260174Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724007A (en) * | 2012-06-29 | 2012-10-10 | 青岛海信移动通信技术股份有限公司 | Test method and test device of communication terminals |
| CN102724007B (en) * | 2012-06-29 | 2015-03-04 | 青岛海信移动通信技术股份有限公司 | Test method and test device of communication terminals |
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| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150923 Address after: 100080, Beijing, Zhongguancun Haidian District Street 11, 100 million world wealth center, block A, 12 Patentee after: BEIJING BOXIN SHITONG TECHNOLOGY CO., LTD. Address before: 100084, No. 803, building A, Tsinghua Science and Technology Park, No. 8, Zhongguancun East Road, building 1, Haidian District, Beijing Patentee before: Beijing Chuangyi Vision Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20090617 |
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| CX01 | Expiry of patent term |