Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Airborne selective calling signal generator and implementation method thereof

A signal generator and selective calling technology, applied in the direction of selection devices, electrical components, etc., can solve the problems that affect the normal flight of the aircraft, the audio management components are prone to failure, etc., and achieve improved reliability, output frequency bandwidth, and high frequency resolution. Effect

Active Publication Date: 2011-04-13
CIVIL AVIATION UNIV OF CHINA
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to statistics, the audio management component is a key device that is prone to failure. If it cannot be repaired quickly and accurately, it will definitely affect the normal flight of the aircraft
So far, the automatic test equipment for audio management components is still in its infancy, and the testing of audio management components (AMU) generally adopts the way of audio control panel (Audio Control Panel, ACP) assisted debugging, which is at a relatively low level.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Airborne selective calling signal generator and implementation method thereof
  • Airborne selective calling signal generator and implementation method thereof
  • Airborne selective calling signal generator and implementation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The implementation method of the multi-channel digital airborne selective call signal generator provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] like figure 1 As shown, a virtual interface control software running on the industrial computer sends selective call codes to the hardware circuit, and the selective call signal is transmitted to the control single-chip microcomputer through the USB conversion circuit, and the single-chip microcomputer decodes and corrects the read data according to the pre-specified format. Test, get the amplitude control word and selective call code, and then transmit these information to the FPGA chip together with the control signal. The AVR single-chip controller is mainly used to control the USB module, read data from the USB conversion circuit by means of interruption, and send it to the signal generator based on the FPGA chip after proces...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an airborne selective calling signal generator and an implementation method thereof. A virtual interface control window running on an industrial personal computer is used as a control terminal for the airborne selective calling signal generator; virtual interface control software is communicated with selective calling signal source hardware through a universal serial bus (USB) conversion circuit so as to control the selective calling signal source hardware; the airborne selective calling signal generator does not need to modify the hardware but only needs to modify a singlechip and parts of programs in a field programmable gate array (FPGA) so as to realize an arbitrary waveform function; a signal calling source of the generator has a wide output frequency band and a high frequency resolution rate, and the variation in the output frequency only changes the slope of a corresponding function curve, does not have influence on the continuity of the curve and can meet the testing requirements of various system management components on an airplane; and a selective calling audio signal can be accurately and stably generated according to requirements in the automatic testing process of airborne electronic equipment.

Description

technical field [0001] The invention relates to a selective call signal generator for aircraft maintenance, in particular to an airborne selective call signal generator and its realization method. Background technique [0002] The aircraft selective call signal is used by the ground tower to inquire about the aircraft in the airspace, so as to realize the communication between the tower and the aircraft, and ensure the successful completion of the flight mission of the aircraft. Therefore, before the aircraft is released, it is necessary to ensure that the selective call function of the relevant airborne electronic equipment is normal. According to statistics, the audio management component is a key device that is prone to failure. If it cannot be repaired quickly and accurately, it will definitely affect the normal flight of the aircraft. So far, the automatic test equipment for audio management components is still in its infancy, and the testing of audio management compon...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04Q3/00
Inventor 王凯周德新樊智勇詹湘琳刘岱刘涛
Owner CIVIL AVIATION UNIV OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products