Method and device for testing maximum transmission distance of WIFI (wireless fidelity) signals

A technology of transmission distance and test method, which is applied in the direction of transmission system, digital transmission system, wireless communication, etc., can solve the problem that there is no effective means to accurately test the furthest distance of WIFI signal, and achieve the effect of high evaluation accuracy

Inactive Publication Date: 2018-01-19
台州市吉吉知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above two solutions start from testing the performance of received power and anti-interference ability respectively, and solve the shortcomings of the existing technology, but there is currently no effective means for accurately testing the longest distance of WIFI signals

Method used

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  • Method and device for testing maximum transmission distance of WIFI (wireless fidelity) signals
  • Method and device for testing maximum transmission distance of WIFI (wireless fidelity) signals

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Embodiment 1

[0040] When testing the furthest distance of WIFI signals in the prior art, it is usually tested in an open environment, subject to interference from temperature, humidity and other electromagnetic signals, the test results are unstable, and quantitative comparison of data cannot be done. Moreover, the farthest WIFI signal of a general router can exceed 100 meters or even 200 meters in theory without interference, so it is necessary to find an open space for testing, which is very difficult to implement. For this reason, this embodiment proposes a It can quantitatively and accurately test the farthest transmission distance of WIFI routers, so as to facilitate comparative testing of different routers and improve the evaluation accuracy of WIFI transmission capabilities of routers. It is a device for testing the longest transmission distance of WIFI signals.

[0041] Specifically, such as figure 1 As shown, the device for testing the farthest transmission distance of the WIFI si...

Embodiment 2

[0068] This embodiment is similar to Embodiment 1, the difference is that this embodiment is used to test the farthest wireless transmission distance of a WIFI router in the 5GHz frequency band, and its formula is also based on the calculation formula of electromagnetic wave transmission in free space, specifically the formula ② ,

[0069] 5GHz: Lbf=108+20lgD②

[0070] Similarly, Lbf: attenuation value (dB);

[0071] D: distance (km).

[0072] For such a 5GHz frequency band, use formula ② to calculate the corresponding distance D, which is the maximum transmission distance of the corresponding router.

[0073] 2.4GHz and 5GHz are the two main frequency bands in the current wifi field. As 802.11g / b, it is currently the most popular wifi technology in the family. It belongs to the 2.4GHz ISM frequency band, which is a free frequency band used in industry, science, and medical fields; the advantage of this frequency band is that it does not need to pay. In the indoor environm...

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Abstract

The invention belongs to the technical field of WIFI (wireless fidelity) signal testing, and particularly relates to a method and a device for testing the maximum transmission distance of WIFI signals. The device comprises a WIFI router to be tested, an antenna, a wireless testing terminal and a wired testing terminal, the WIFI router to be tested is wirelessly connected with the antenna, the antenna is connected with the wireless testing terminal through an adjustable attenuator, the wired testing terminal is in wired connection with the WIFI router to be tested through a network connecting line, and both the antenna and the WIFI router to be tested are positioned in the same shielding room. The device has the advantages of capability of avoiding the influence of environmental factors andhigh testing precision.

Description

technical field [0001] The invention belongs to the technical field of WIFI signal testing, and in particular relates to a device for testing the longest transmission distance of WIFI signals and a testing method thereof. Background technique [0002] Wireless access technology WIFI, because of its open communication frequency band, cheap equipment, and easy deployment, is widely used in various local area networks, such as homes, cafes, public places, airports, and large institutions. [0003] Before a WIFI router is put into production and life, it usually needs to be tested for its performance. The most important thing is to evaluate the performance of a WIFI router’s receiving power, anti-interference ability and the longest transmission distance of its WIFI signal. Usually, the above two tests need to be tested with an expensive wifi signal tester, and the longest transmission distance test needs to adjust the distance between the tester and the router. Wireless signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26H04L29/12H04W24/08
Inventor 刘帅
Owner 台州市吉吉知识产权运营有限公司
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