CN102176688A - 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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- CN102176688A CN102176688A CN2011100047733A CN201110004773A CN102176688A CN 102176688 A CN102176688 A CN 102176688A CN 2011100047733 A CN2011100047733 A CN 2011100047733A CN 201110004773 A CN201110004773 A CN 201110004773A CN 102176688 A CN102176688 A CN 102176688A
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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 system that assesses the aerial receptivity of mobile phone TV terminal.
Background technology
Mobile TV is meant 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 the popularizing of mobile data services, the raising of handset capability and developing rapidly of digital television techniques and network, mobile TV has become the new focus of wireless application, is regarded as one of 3G most promising multimedia service of epoch.
Compare with the traditional tv business, the portability of mobile phone terminal and mobility make mobile phone TV services have more influence power and market potential.Yet different with the wire transmission of traditional tv, mobile phone TV services are used under wireless communications environment.Along with 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 reception characteristics, just can guarantee service quality, and satisfies user's instructions for use.Aerial receptivity for mobile phone terminal mainly characterizes by receiving sensitivity at present, this index obtains by measuring the error rate, but the error rate is based on the two-way communication basis, promptly requires mobile phone terminal to support uplink communication and downlink communication simultaneously.But mobile phone TV services are based on broadcast type, promptly only support 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 objective of the invention is to propose a kind of objective examination system that assesses the aerial receptivity of mobile phone TV terminal for overcoming the weak point of prior art, finishing the aerial receiver performance detection of mobile phone TV terminal, and the measuring accuracy height, easy and simple to handle.
The objective examination 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 links to each other 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 links to each other with the measurement antenna by the radio-frequency (RF) switch instrument; The output of twin shaft controller links to each other with the input of twin shaft locator; The output of system control position links to each other with the input of bluetooth-USB adapter; Tested mobile phone TV terminal is fixed on the twin shaft locator; Bluetooth-USB adapter, tested mobile phone TV terminal all place a fully anechoic chamber, measure antenna and are fixed on the fully anechoic chamber wall;
System control position is used to control automatic test course, and shows test results;
The mobile TV signal generator is used to produce the mobile TV signal of various standards, and tested mobile phone TV terminal receives this mobile TV signal by measuring antenna;
The radio-frequency (RF) switch instrument is used for switching between two orthogonal polarizations of measuring antenna;
Measure antenna, the mobile TV signal that is used for the mobile TV signal generator is produced and send via the radio-frequency (RF) switch instrument is by launching in the air;
The twin shaft controller is used to control the twin shaft locator, to realize tested mobile phone TV terminal in three-dimensional location;
The twin shaft locator is used to realize that tested mobile phone TV terminal is in three-dimensional location;
Bluetooth-USB adapter be used 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 objective examination system of the aerial receptivity of assessment mobile phone TV terminal that the present invention proposes, its characteristics and advantage are:
Native system returns to system control position by bluetooth-USB adapter with the bit error rate information that tested mobile phone TV terminal records, overcome mobile phone TV services and only supported the problem of downlink communication, finish mobile phone TV terminal and received performance detection in the air, and the measuring accuracy height, easy and simple to handle.
Description of drawings
Fig. 1 is the structured flowchart of the objective examination system of the aerial receptivity of assessment mobile phone TV terminal that proposes of the present invention.
Embodiment
The objective examination system of the aerial receptivity of assessment mobile phone TV terminal that the present invention proposes reaches embodiment in conjunction with the accompanying drawings and is described in detail as follows:
The structure of system of the present invention comprises system control position, mobile TV signal generator, radio-frequency (RF) switch instrument, measures antenna, twin shaft controller, twin shaft locator, bluetooth-USB adapter as shown in Figure 1; Wherein, the output of system control position links to each other 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 links to each other with the measurement antenna by the radio-frequency (RF) switch instrument; The output of twin shaft controller links to each other with the input of twin shaft locator; The output of system control position links to each other with the input of bluetooth-USB adapter; Tested mobile phone TV terminal is fixed on the twin shaft locator; Bluetooth-USB adapter, tested mobile phone TV terminal all place a fully anechoic chamber, measure antenna and are fixed on the fully anechoic chamber wall;
System control position is used to control automatic test course, and shows test results;
The mobile TV signal generator is used to produce the mobile TV signal of various standards, and tested mobile phone TV terminal receives this signal by measuring antenna;
The radio-frequency (RF) switch instrument is used for switching between two orthogonal polarizations of measuring antenna;
Measure antenna, the mobile TV signal that is used for the mobile TV signal generator is produced and send via the radio-frequency (RF) switch instrument is by launching in the air;
The twin shaft controller is used to control the twin shaft locator, to realize tested mobile phone TV terminal in three-dimensional location;
The twin shaft locator is used to realize that tested mobile phone TV terminal is in three-dimensional location;
Bluetooth-USB adapter be used 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:
At first system control position is provided with 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 test signal well in the darkroom; The polarization of system control position control survey antenna then can be switched between level and perpendicular polarization according to the test specific requirement; System control position control twin shaft controller, the twin shaft controller will be ordered by optical fiber and be sent to the twin shaft locator, thereby tested mobile phone TV terminal will be 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 begin to carry out error rate test; Tested mobile phone TV terminal returns to system control position with the error rate that records by bluetooth-USB adapter; If the error rate (gets 3 * 10 usually less than required value
-6) time, system control position sends order to the mobile TV signal generator, requires it to reduce transmitting power; The simultaneity factor control desk sends order to tested mobile phone TV terminal by bluetooth-USB adapter, requires it to test the error rate again, and the new error rate is returned to system control position; Repeat above-mentioned steps, the ber value that returns up to tested mobile phone TV terminal equals required value; The signal power that send to tested mobile phone TV terminal this moment is the receiving sensitivity value of tested mobile phone TV terminal in this position.
Above-mentioned control procedure is to realize by system control program RS-STAR and the EmQuest that is installed in advance in the system control position, control program RS-STAR realizes the control to the mobile TV signal generator, and receives the bit error rate information of being returned by mobile phone TV terminal by bluetooth-USB adapter transmission order simultaneously to tested mobile phone TV terminal; 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 the specific embodiments of each parts of system of the present invention in detail:
As shown in Figure 1, in one embodiment of the present of invention, the aerial receptivity objective examination of mobile phone TV terminal system comprises:
The system control position ThinkPad T43 of system control program is installed; Mobile TV signal generator, model are SFU; Radio-frequency (RF) switch instrument, model are TS-RSP; Measure antenna, model is EMCO-3164-03; Twin shaft controller, model are ETS2090; Twin shaft locator, model are MAPS; Bluetooth-USB adapter, model are HAMA; Wherein, the output of system control position links to each other 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 links to each other by the input of optical fiber with the twin shaft locator; The output of mobile TV signal generator is connected with the measurement antenna with the radio-frequency (RF) switch instrument successively by radio frequency cable; System control position links to each other by the USB extended line with bluetooth-USB adapter; Tested mobile phone TV terminal is fixed on the twin shaft locator; Bluetooth-USB adapter, tested mobile phone TV terminal all place the fully anechoic chamber of a routine, measure antenna and are fixed on the fully anechoic chamber wall.
Claims (1)
1. objective examination system that assesses the mobile TV receptivity, 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 links to each other 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 links to each other with the measurement antenna by the radio-frequency (RF) switch instrument; The output of twin shaft controller links to each other with the input of twin shaft locator; The output of system control position links to each other with the input of bluetooth-USB adapter; Tested mobile phone TV terminal is fixed on the twin shaft locator; Bluetooth-USB adapter, tested mobile phone TV terminal all place a fully anechoic chamber, measure antenna and are fixed on the fully anechoic chamber wall;
Described system control position is used to control automatic test course, and shows test results;
Described mobile TV signal generator is used to produce the mobile TV signal of various standards, and tested mobile phone TV terminal receives this signal by measuring antenna;
Described radio-frequency (RF) switch instrument is used for switching between two orthogonal polarizations of measuring antenna;
Described measurement antenna, the mobile TV signal that is used for the mobile TV signal generator is produced and send via the radio-frequency (RF) switch instrument is by launching in the air;
Described twin shaft controller is used to control the twin shaft locator, to realize tested mobile phone TV terminal in three-dimensional location;
Described twin shaft locator is used to realize that tested mobile phone TV terminal is in three-dimensional location;
Described bluetooth-USB adapter be used 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.
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| 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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| 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 true CN102176688A (en) | 2011-09-07 |
| CN102176688B CN102176688B (en) | 2014-05-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| WO2008032024A2 (en) * | 2006-09-15 | 2008-03-20 | National Grid Wireless Limited | Mobile television signal testing apparatus |
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Cited By (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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| CN102176688B (en) | 2014-05-21 |
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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 |