Ultrashort-wave radio station receiving function test method

A technology of ultra-short wave radio station and test method, which is applied in the field of avionics, can solve problems such as burnout of on-board parts, long time spent, and complicated operation methods, and achieve the effects of saving time, improving work efficiency, and simple external connections

Inactive Publication Date: 2016-07-20
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the existing production technology is concerned, when the power-on inspection of the system is performed, the working method of the airborne finished product can only be simulated by means of short circuit, such as frequency data bus, audio analog information and radio frequency analog information, etc. The operation method is complicated and It takes a long time, and it may cause burnout of the parts on the machine due to incorrect short-circuit operation, which poses a great safety hazard

Method used

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  • Ultrashort-wave radio station receiving function test method

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0013] A test method for transmitting function of ultrashort wave radio, such as figure 1 Shown, including:

[0014] The external power supply connects the 28V DC power supply to the ultra-short wave radio connector 1 through the power distribution unit 5;

[0015] 429 The data transmission and control / display unit 2 sets the working frequency of the ultrashort wave radio connector 1, and the ultrashort wave radio connector 1 works on the set working frequency;

[0016] The integrated tester sends a modulated radio frequency signal to the ultrashort wave radio connector 1 on the set working frequency;

[0017] The ultrashort wave radio connector 1 demodulates the modulated radio frequency signal, and sends the demodulated signal to the audio signal transmission unit 4 through the signal processing unit 3;

[0018] The audio signal transmission unit 4 detects and amplif...

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Abstract

The invention belongs to the field of avionics, and provides an ultrashort-wave radio station receiving function test method. The ultrashort-wave radio station receiving function test method comprises the steps of setting the working frequency of an ultrashort-wave radio station connector (1) by a 429 data transmission and control/display unit (2), making the ultrashort-wave radio station connector (1) work in the set working frequency; transmitting a modulating RF signal to the ultrashort-wave radio station connector (1) by a comprehensive tester in the set working frequency; demodulating the modulating RF signal by the ultrashort-wave radio station connector (1), and transmitting a demodulated signal to an audio signal transmission unit (4) through a signal processing unit (3); performing demodulation amplification identification on the demodulated signal by the audio signal transmission unit (4), obtaining an audio signal, and outputting the audio signal to audio signal analyzing/monitoring equipment.

Description

Technical field [0001] The invention belongs to the field of avionics, and relates to a method for testing the receiving function of an ultrashort wave radio station. Background technique [0002] The main function of the ultrashort wave radio is to realize the ultrashort wave line-of-sight communication between the pilot and the ground command station or between the air plane and the plane. As far as the existing production technology is concerned, when the system is energized and checked, the short circuit can only be used to simulate the working mode of the airborne product, such as frequency data bus, audio analog quantity information and radio frequency simulation information, etc. The operation mode is complicated and It takes a long time, and the upper part of the machine may burn out due to the wrong short-circuit operation, which poses great safety risks. Summary of the invention [0003] The purpose of the present invention: to propose a test method for the receiving fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/29
CPCH04B17/29
Inventor 陶书萍
Owner HARBIN
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