CN102176688B - Objective test system for evaluating receiving performance of mobile TV terminal in air - Google Patents
Objective test system for evaluating receiving performance of mobile TV terminal in air Download PDFInfo
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- CN102176688B CN102176688B CN201110004773.3A CN201110004773A CN102176688B CN 102176688 B CN102176688 B CN 102176688B CN 201110004773 A CN201110004773 A CN 201110004773A CN 102176688 B CN102176688 B CN 102176688B
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Abstract
The invention relates to an objective test system for evaluating receiving performance of a mobile TV terminal in the air, belonging to the technical field of radio frequency test of wireless communication products. The system comprises a system console, a mobile TV signal generator, a measuring antenna, a radio frequency switch, a dual-axis controller, a dual-axis localizer and a Bluetooth-USB (Universal Series Bus) adapter, wherein the system console is used for controlling test process and displaying results, the mobile TV signal generator is used for generating mobile TV signals, the measuring antenna is used for transmitting signals to a tested mobile TV terminal, the radio frequency switch is used for switching communication routes, the dual-axis controller is used for controlling the dual-axis localizer, the dual-axis localizer is used for positioning the tested mobile TV terminal, and the Bluetooth-USB (Universal Series Bus) adapter is used for sending the commands of the system console to the tested mobile TV terminal and feeding back bit error ratio information tested by the tested mobile TV terminal to the system console, wherein the Bluetooth-USB adapter and the tested mobile TV terminal are both arranged in a fully anechoic chamber. The system provided by the invention has high test precision and is convenient to operate.
Description
Technical field
The invention belongs to the radio frequency testing technical field of wireless communications products, particularly a kind of objective examination's system of assessing the aerial receptivity of mobile phone TV terminal.
Background technology
Mobile TV refers to that it is the product that mobile communication and tv broadcasting technology merge by the teleview method of service of content of mobile phone terminal.Along with universal, the raising of handset capability and the developing rapidly of digital television techniques and network of mobile data services, mobile TV has become the new focus of wireless application, is regarded as one of 3G most promising multimedia service of epoch.
Compared with traditional tv business, the portability of mobile phone terminal and mobility make mobile phone TV services have more influence power and market potential.But different from the wire transmission of traditional tv, mobile phone TV services are used under wireless communications environment.Along with the fast development of modern industry, electromagnetic environment goes from bad to worse, and this also makes mobile phone TV terminal face more challenges.
Mobile phone TV terminal only possesses good receiving feature, and guarantee service quality meets user's instructions for use.Mainly characterize by receiving sensitivity for the aerial receptivity of mobile phone terminal at present, this index obtains by measuring the error rate, but the error rate, based on two-way communication basis, requires mobile phone terminal to support uplink communication and downlink communication simultaneously.But mobile phone TV services, based on broadcast type, are only supported downlink communication.Therefore the method for measurement of traditional receiving sensitivity is not suitable for the assessment of the aerial receptivity of mobile phone TV terminal.
Summary of the invention
The object of the invention is the weak point for overcoming prior art, propose a kind of objective examination's system of assessing the aerial receptivity of mobile phone TV terminal, to complete the detection of aerial receiver performance of mobile phone TV terminal, and measuring accuracy is high, easy and simple to handle.
Objective examination's system of the aerial receptivity of assessment mobile phone TV terminal that the present invention proposes, is characterized in that comprising: system control position, mobile TV signal generator, radio-frequency (RF) switch instrument, measurement antenna, twin shaft controller, twin shaft locator, bluetooth-USB adapter; Wherein, the output of system control position is connected with input, the input of mobile TV signal generator, the radio-frequency (RF) switch instrument of twin shaft controller respectively; The output of mobile TV signal generator is connected with measurement antenna by radio-frequency (RF) switch instrument; The output of twin shaft controller is connected with the input of twin shaft locator; The output of system control position is connected with the input of bluetooth-USB adapter; Tested mobile phone TV terminal is fixed on twin shaft locator; Bluetooth-USB adapter, tested mobile phone TV terminal are all placed in a fully anechoic chamber, measure antenna and are fixed on fully anechoic chamber wall;
System control position, for auto-control test process, and shows test results;
Mobile TV signal generator, for generation of the mobile TV signal of various standards, tested mobile phone TV terminal is by measuring this mobile TV signal of antenna reception;
Radio-frequency (RF) switch instrument, for switching between two orthogonal polarizations measuring antenna;
Measure antenna, for generation and that send via radio-frequency (RF) switch instrument mobile TV signal generator mobile TV signal is gone out by air-launched;
Twin shaft controller, for controlling twin shaft locator, to realize tested mobile phone TV terminal in three-dimensional location;
Twin shaft locator, for realizing tested mobile phone TV terminal in three-dimensional location;
Bluetooth-USB adapter, for the order of system control position is sent to tested mobile phone TV terminal, and the bit error rate information that tested mobile phone TV terminal is recorded returns to system control position.
Objective examination's system of the aerial receptivity of assessment mobile phone TV terminal that the present invention proposes, its feature and advantage are:
The bit error rate information that native system records tested mobile phone TV terminal by bluetooth-USB adapter returns to system control position, overcome mobile phone TV services and only supported the problem of downlink communication, completed the detection of the aerial receptivity of mobile phone TV terminal, and measuring accuracy is high, easy and simple to handle.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of objective examination's system of the aerial receptivity of assessment mobile phone TV terminal that proposes of the present invention.
Embodiment
The present invention propose the aerial receptivity of assessment mobile phone TV terminal objective examination's system by reference to the accompanying drawings and embodiment be described in detail as follows:
The structure of system of the present invention as shown in Figure 1, comprises system control position, mobile TV signal generator, radio-frequency (RF) switch instrument, measures antenna, twin shaft controller, twin shaft locator, bluetooth-USB adapter; Wherein, the output of system control position is connected with input, the input of mobile TV signal generator, the radio-frequency (RF) switch instrument of twin shaft controller respectively; The output of mobile TV signal generator is connected with measurement antenna by radio-frequency (RF) switch instrument; The output of twin shaft controller is connected with the input of twin shaft locator; The output of system control position is connected with the input of bluetooth-USB adapter; Tested mobile phone TV terminal is fixed on twin shaft locator; Bluetooth-USB adapter, tested mobile phone TV terminal are all placed in a fully anechoic chamber, measure antenna and are fixed on fully anechoic chamber wall;
System control position, for auto-control test process, and shows test results;
Mobile TV signal generator, for generation of the mobile TV signal of various standards, tested mobile phone TV terminal is by measuring this signal of antenna reception;
Radio-frequency (RF) switch instrument, for switching between two orthogonal polarizations measuring antenna;
Measure antenna, for generation and that send via radio-frequency (RF) switch instrument mobile TV signal generator mobile TV signal is gone out by air-launched;
Twin shaft controller, for controlling twin shaft locator, to realize tested mobile phone TV terminal in three-dimensional location;
Twin shaft locator, for realizing tested mobile phone TV terminal in three-dimensional location;
Bluetooth-USB adapter, for the order of system control position is sent to tested mobile phone TV terminal, and the bit error rate information that tested mobile phone TV terminal is recorded returns to system control position.
The test process of system of the present invention is as follows:
First system control position arranges the relevant parameter of mobile TV signal generator, and transmitting power is set enough greatly to guarantee that tested mobile phone TV terminal can receive well test signal in darkroom; Then the polarization of system control position control survey antenna can be switched according to test specific requirement between horizontal and vertical polarization; System control position control twin shaft controller, twin shaft controller sends to twin shaft locator by order by optical fiber, thereby tested mobile phone TV terminal is positioned on the position of requirement; System control position sends order to tested mobile phone TV terminal by bluetooth-USB adapter, requires tested mobile phone TV terminal to start to carry out error rate test; Tested mobile phone TV terminal returns to system control position by the error rate recording by bluetooth-USB adapter; If being less than required value, the error rate (conventionally gets 3 × 10
-6) time, system control position sends order to mobile TV signal generator, requires it to reduce transmitting power; Simultaneity factor control desk sends order to tested mobile phone TV terminal by bluetooth-USB adapter, requires it to retest the error rate, and the new error rate is returned to system control position; Repeat above-mentioned steps, until the ber value that tested mobile phone TV terminal returns equals required value; The signal power that now sends to tested mobile phone TV terminal is the receiving sensitivity value of tested mobile phone TV terminal in this position.
Above-mentioned control procedure is that system control program RS-STAR and the EmQuest by being arranged in advance in system control position realizes, control program RS-STAR realizes the control to mobile TV signal generator, and receives the bit error rate information of being returned by mobile phone TV terminal to tested mobile phone TV terminal by bluetooth-USB adapter transmission order simultaneously; Control program EmQuest realizes the control to twin shaft locator and radio-frequency (RF) switch instrument.This control program RS-STAR and EmQuest are those skilled in the art and adopt routine techniques to work out.
Below in conjunction with one embodiment of the present of invention, introduce in detail the specific embodiments of each parts of system of the present invention:
As shown in Figure 1, in one embodiment of the present of invention, the aerial receptivity objective examination's system of mobile phone TV terminal comprises:
The system control position ThinkPad T43 of system control program is installed; Mobile TV signal generator, model is SFU; Radio-frequency (RF) switch instrument, model is TS-RSP; Measure antenna, model is EMCO-3164-03; Twin shaft controller, model is ETS2090; Twin shaft locator, model is MAPS; Bluetooth-USB adapter, model is HAMA; Wherein, the output of system control position is connected with input, the input of mobile TV signal generator, the radio-frequency (RF) switch instrument of twin shaft controller respectively by GPIB (IEEE488) cable; The output of twin shaft controller is connected with the input of twin shaft locator by optical fiber; The output of mobile TV signal generator is connected with measurement antenna with radio-frequency (RF) switch instrument successively by radio frequency cable; System control position is connected by USB extended line with bluetooth-USB adapter; Tested mobile phone TV terminal is fixed on twin shaft locator; Bluetooth-USB adapter, tested mobile phone TV terminal are all placed in a conventional fully anechoic chamber, measure antenna and are fixed on fully anechoic chamber wall.
Claims (1)
1. assess objective examination's system of mobile TV receptivity for one kind, it is characterized in that, this system comprises: system control position, mobile TV signal generator, radio-frequency (RF) switch instrument, measurement antenna, twin shaft controller, twin shaft locator, bluetooth-USB adapter and fully anechoic chamber; Wherein, the output of system control position is connected with input, the input of mobile TV signal generator, the radio-frequency (RF) switch instrument of twin shaft controller respectively; The output of mobile TV signal generator is connected with measurement antenna by radio-frequency (RF) switch instrument; The output of twin shaft controller is connected with the input of twin shaft locator; The output of system control position is connected with the input of bluetooth-USB adapter; Tested mobile phone TV terminal is fixed on twin shaft locator; Bluetooth-USB adapter, tested mobile phone TV terminal are all placed in a fully anechoic chamber, measure antenna and are fixed on fully anechoic chamber wall;
Described system control position, for auto-control test process, and shows test results;
Described mobile TV signal generator, for generation of the mobile TV signal of various standards, tested mobile phone TV terminal is by measuring this signal of antenna reception;
Described radio-frequency (RF) switch instrument, for switching between two orthogonal polarizations measuring antenna;
Described measurement antenna, for being gone out generation and that send via radio-frequency (RF) switch instrument mobile TV signal generator mobile TV signal by air-launched;
Described twin shaft controller, for controlling twin shaft locator, to realize tested mobile phone TV terminal in three-dimensional location;
Described twin shaft locator, for realizing tested mobile phone TV terminal in three-dimensional location;
Described bluetooth-USB adapter, for the order of system control position is sent to tested mobile phone TV terminal, and the bit error rate information that tested mobile phone TV terminal is recorded returns to system control position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110004773.3A CN102176688B (en) | 2011-01-11 | 2011-01-11 | Objective test system for evaluating receiving performance of mobile TV terminal in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110004773.3A CN102176688B (en) | 2011-01-11 | 2011-01-11 | Objective test system for evaluating receiving performance of mobile TV terminal in air |
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| CN102176688A CN102176688A (en) | 2011-09-07 |
| CN102176688B true CN102176688B (en) | 2014-05-21 |
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| CN201110004773.3A Active CN102176688B (en) | 2011-01-11 | 2011-01-11 | Objective test system for evaluating receiving performance of mobile TV terminal in air |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523474A (en) * | 2011-10-20 | 2012-06-27 | 江西省南城县网信电子有限公司 | Signal receiving test system based on digital television terrestrial broadcasting (DTTB) |
| CN103427914A (en) * | 2012-05-23 | 2013-12-04 | 深圳市鼎立方无线技术有限公司 | System and method for testing performances of receiver |
| CN103428743A (en) * | 2012-05-23 | 2013-12-04 | 深圳市鼎立方无线技术有限公司 | System and method for testing performances of receiver |
| CN106597125A (en) * | 2016-11-18 | 2017-04-26 | 广东小天才科技有限公司 | OTA detection method, system and device for intelligent wearable device |
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| CN101106432A (en) * | 2007-08-16 | 2008-01-16 | 中兴通讯股份有限公司 | A testing method and system for receiving sensitivity parameter of mobile terminal |
| CN101888278A (en) * | 2010-06-13 | 2010-11-17 | 中国标准化研究院 | Interference detection method and system based on mobile communication terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008032024A2 (en) * | 2006-09-15 | 2008-03-20 | National Grid Wireless Limited | Mobile television signal testing apparatus |
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| CN101106432A (en) * | 2007-08-16 | 2008-01-16 | 中兴通讯股份有限公司 | A testing method and system for receiving sensitivity parameter of mobile terminal |
| CN101888278A (en) * | 2010-06-13 | 2010-11-17 | 中国标准化研究院 | Interference detection method and system based on mobile communication terminal |
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| 《无线通信领域的测试新技术--通过空中接口的手机射频特性测量》;罗健;《安全与电磁兼容》;20040831(第4期);正文第一节-第五节 * |
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Effective date of registration: 20211223 Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF INFORMATION AND COMMUNICATIONS Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: TELECOMMUNICATION METROLOGY CENTER OF MINISTRY OF INDUSTRY AND INFORMATION TECHNOLOGY |
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