CN102075271B - Subjective testing system for evaluating aerial receptivity of mobile phone television terminal - Google Patents
Subjective testing system for evaluating aerial receptivity of mobile phone television terminal Download PDFInfo
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- CN102075271B CN102075271B CN2011100050435A CN201110005043A CN102075271B CN 102075271 B CN102075271 B CN 102075271B CN 2011100050435 A CN2011100050435 A CN 2011100050435A CN 201110005043 A CN201110005043 A CN 201110005043A CN 102075271 B CN102075271 B CN 102075271B
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Abstract
The invention relates to a subjective testing system for evaluating aerial receptivity of a mobile phone television terminal, which belongs to the radio-frequency testing technical field of wireless communication products, and comprises a system console for controlling an automatic testing process and for displaying results, a mobile phone television signal generator for producing a mobile phone television signal, a measurement antenna for transmitting a signal to the mobile phone television terminal to be tested, a radio-frequency switch instrument for switching communication paths, a dual-axle controller for controlling a dual-axle positioning device, the dual-axle positioning device for positioning the mobile phone television terminal to be tested and for fixing a video collection device, the video collection device for real-time collecting a video picture of the mobile phone television terminal to be tested, a controller for remotely controlling the video collection device, and a display device for displaying the video picture of the mobile phone television terminal to be tested which is transmitted by the video collection device. The subjective testing system has high testing precision and is simple and convenient to operate.
Description
Technical field
The invention belongs to the radio frequency testing technical field of wireless communications products, particularly a kind of subjective testing system that assesses 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.
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 from the wire transmission of traditional tv business, 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 satisfies user's instructions for use.Aerial receptivity for mobile phone terminal mainly characterizes by receiving sensitivity at present, this index is to obtain by measuring the error rate, but the error rate is based on the two-way communication basis, namely requires mobile phone terminal to support simultaneously uplink communication and downlink communication.But mobile phone TV services are based on broadcast type, namely 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 overcome the weak point of prior art, propose a kind of subjective testing system that assesses the aerial receptivity of mobile phone TV terminal, can complete the detection of the aerial receiver performance of mobile phone TV terminal, and measuring accuracy is high, easy and simple to handle.
The subjective testing 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, video capture device, video capture device controller and display device; Wherein, the output of system control position is connected with the input of twin shaft controller, the input of mobile TV signal generator, the input of radio-frequency (RF) switch instrument respectively; The output of twin shaft controller is connected with the input of twin shaft locator; The output of mobile TV signal generator is connected with the measurement antenna by the radio-frequency (RF) switch instrument; The output of video capture device controller is connected with the input of display device; The video capture device controller is connected with video capture device is two-way; Tested mobile phone TV terminal and video capture device are separately fixed on the twin shaft locator; Twin shaft locator, tested mobile phone TV terminal and video capture device all are placed in a fully anechoic chamber, measure antenna and are fixed on the fully anechoic chamber wall;
Described system control position is used for the 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 is used for switching between two orthogonal polarizations of measuring antenna;
Described measurement antenna, be used for the mobile TV signal generator is produced and gone out by air-launched via the mobile TV signal that the radio-frequency (RF) switch instrument sends;
The twin shaft controller is used for controlling the twin shaft locator, to realize tested mobile phone TV terminal in three-dimensional location;
Described twin shaft locator is used for realizing that tested mobile phone TV terminal is at three-dimensional location and fixed video collecting device;
Described video capture device is used for the video pictures of the tested mobile phone TV terminal of Real-time Collection, and this picture is sent on display device via the video capture device controller;
Described video capture device controller, focusing, distance for the Long-distance Control video capture device receive the real-time video picture that is sent back by video capture device simultaneously;
Described display device be used for to show by the collection of RF acquisition equipment and the real-time video picture that sends back by the video capture device controller.
The subjective testing system of the aerial receptivity of assessment mobile phone TV terminal that the present invention proposes, its characteristics and advantage are:
Native system carries out remote real-time monitoring by display device to the television picture quality of tested mobile phone TV terminal, is as the criterion with user's real experiences, weighs its receiving sensitivity; Namely overcome the deficiency that can't test the error rate, effectively completed the detection of the aerial receptivity of mobile phone TV terminal simultaneously, and measuring accuracy has been high, easy and simple to handle.
Description of drawings
Fig. 1 is the structured flowchart of the subjective testing system of the aerial receptivity of assessment mobile phone TV terminal that proposes of the present invention.
Embodiment
The subjective testing system of the aerial receptivity of assessment mobile phone TV terminal that the present invention proposes reaches by reference to the accompanying drawings embodiment and is described in detail as follows:
System configuration of the present invention comprises as shown in Figure 1: system control position, mobile TV signal generator, radio-frequency (RF) switch instrument, measurement antenna, twin shaft controller, twin shaft locator, video capture device, video capture device controller, display device; Wherein, the output of system control position is connected with the input of twin shaft controller, the input of mobile TV signal generator, the input of radio-frequency (RF) switch instrument respectively; The output of twin shaft controller is connected with the input of twin shaft locator; The output of mobile TV signal generator is connected with the measurement antenna by the radio-frequency (RF) switch instrument; The output of video capture device controller is connected with the input of display device; The video capture device controller is connected with video capture device is two-way; Tested mobile phone TV terminal and video capture device are separately fixed on the twin shaft locator; Twin shaft locator, tested mobile phone TV terminal and video capture device all are placed in a fully anechoic chamber, measure antenna and are fixed on the fully anechoic chamber wall;
System control position is used for the auto-control test process, and shows test results;
The 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;
The radio-frequency (RF) switch instrument is used for switching between two orthogonal polarizations of measuring antenna;
Measure antenna, be used for the mobile TV signal generator is produced and gone out by air-launched via the mobile TV signal that the radio-frequency (RF) switch instrument sends;
The twin shaft controller is used for controlling the twin shaft locator, to realize tested mobile phone TV terminal in three-dimensional location;
The twin shaft locator is used for realizing that tested mobile phone TV terminal is at three-dimensional location and fixed video collecting device;
Video capture device is used for the video pictures of Real-time Collection measured terminal, and this picture is sent on display device via the video capture device controller;
The video capture device controller is used for the focusing, distance of Long-distance Control video capture device etc., receives simultaneously the Real-time Collection picture that is sent back by video capture device;
Display device be used for to show by the collection of radio frequency input equipment and the real-time video picture that sends back by the video capture device controller.
The test process of system of the present invention is as follows:
At first system control position arranges the relevant parameter of signal generator, and transmitting power is set enough greatly guaranteeing that tested mobile phone TV terminal can receive test signal in the darkroom, and view reception effect is good; The polarization of system control position control survey antenna can be switched between the horizontal and vertical polarization according to the test specific requirement; System control position is controlled the twin shaft controller, and the twin shaft controller sends to the twin shaft locator by optical fiber with order, thereby tested mobile phone TV terminal is positioned on the angle of requirement.This moment, the tester monitored the rating picture of tested mobile phone TV terminal by the display device of outside, darkroom.Stepping with 0.5dB constantly reduces transmitting power, until viewed image has damage (flower screen, mosaic, flating or other obvious image lesion) or pause (quiet frame, frame losing) is arranged in 1 minute, improve transmitting power this moment to previous performance number, and sent to the performance number of tested mobile phone TV terminal as the receiving sensitivity value of tested mobile phone TV terminal on this position this moment.
The above-mentioned course of work is to realize by system control program RS-STAR and the EmQuest that is arranged in advance in system control position, and control program RS-STAR realizes the control to the mobile TV signal generator; 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 various parts of the present invention:
As shown in Figure 1, in one embodiment of the invention, the aerial receptivity subjective testing of mobile phone TV terminal system comprises: the system control position ThinkPad T43 that 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 ETS 2090; The twin shaft locator that comprises mobile jib and faller, model are MAPS; RF acquisition equipment choosing camera, model are AV-Rr3Q.08; Video capture device controller, model are AV-Rr 1Q.08; Display device, model are PVD 1510 DG; Wherein, the output of system control position is connected with the input of twin shaft controller, the input of mobile TV signal generator, the input of radio-frequency (RF) switch instrument by GPIB (IEEE488) cable respectively; The output of twin shaft controller is connected by the input of optical fiber with the twin shaft locator; The output of mobile TV signal generator is connected with radio-frequency (RF) switch instrument, measurement antenna successively by radio frequency cable; The video capture device controller is connected with video capture device by optical fiber, is connected with display device by the video input line; Tested mobile phone TV terminal and video capture device are separately fixed on the mobile jib and faller of twin shaft locator; Twin shaft locator, tested mobile phone TV terminal and video capture device all are placed in the fully anechoic chamber of a routine, measure antenna and are fixed on the fully anechoic chamber wall.
Claims (1)
1. an assessment mobile phone TV terminal receives the performance test system in the air, it 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, video capture device, video capture device controller, display device; Wherein, the output of system control position is connected with the input of twin shaft controller, the input of mobile TV signal generator, the input of radio-frequency (RF) switch instrument respectively; The output of twin shaft controller is connected with the input of twin shaft locator; The output of mobile TV signal generator is connected with the measurement antenna by the radio-frequency (RF) switch instrument; The output of video capture device controller is connected with the input of display device; The video capture device controller is connected with video capture device is two-way; Tested mobile phone TV terminal and video capture device are separately fixed on the twin shaft locator; Twin shaft locator, tested mobile phone TV terminal and video capture device all are placed in a fully anechoic chamber, measure antenna and are fixed on the fully anechoic chamber wall;
Described system control position is used for the 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 is used for switching between two orthogonal polarizations of measuring antenna;
Described measurement antenna, be used for the mobile TV signal generator is produced and gone out by air-launched via the mobile TV signal that the radio-frequency (RF) switch instrument sends;
The twin shaft controller is used for controlling the twin shaft locator, to realize tested mobile phone TV terminal in three-dimensional location;
Described twin shaft locator is used for realizing that tested mobile phone TV terminal is at three-dimensional location and fixed video collecting device;
Described video capture device is used for the video pictures of the tested mobile phone TV terminal of Real-time Collection, and this picture is sent on display device via the video capture device controller;
Described video capture device controller, focusing, distance for the Long-distance Control video capture device receive the Real-time Collection picture that is sent back by video capture device simultaneously;
Described display device be used for to show by the collection of RF acquisition equipment and the real-time video picture that sends back by the video capture device controller.
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| CN2011100050435A CN102075271B (en) | 2011-01-11 | 2011-01-11 | Subjective testing system for evaluating aerial receptivity of mobile phone television terminal |
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| CN2011100050435A CN102075271B (en) | 2011-01-11 | 2011-01-11 | Subjective testing system for evaluating aerial receptivity of mobile phone television terminal |
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| CN102075271B true CN102075271B (en) | 2013-06-26 |
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| 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 |
| CN105527529A (en) * | 2016-01-08 | 2016-04-27 | 深圳控石智能系统有限公司 | Multimedia detection equipment and use method thereof |
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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 |
| WO2008032024A3 (en) * | 2006-09-15 | 2008-05-08 | Nat Grid Wireless Ltd | Mobile television signal testing apparatus |
| WO2009032024A8 (en) * | 2007-05-01 | 2009-06-11 | Perma Fix Environmental Servic | Treatment of chemical agent hydrolysates |
| 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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| WO2008032024A3 (en) * | 2006-09-15 | 2008-05-08 | Nat Grid Wireless Ltd | Mobile television signal testing apparatus |
| WO2009032024A8 (en) * | 2007-05-01 | 2009-06-11 | Perma Fix Environmental Servic | Treatment of chemical agent hydrolysates |
| 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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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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