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

Stepping inquiry-response locating system for flight data recorder

A flight data and positioning system technology, applied in the aviation field, can solve problems such as uncertain search range, low success rate, and many false targets, and achieve the effects of saving manpower, quickly discovering, and improving rescue efficiency

Inactive Publication Date: 2012-07-25
CIVIL AVIATION UNIV OF CHINA
View PDF4 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] To sum up, the common problems existing in traditional flight data recorder positioning technology are: ① Since the crash trajectory of the flight data recorder cannot be known, the place where the plane disappeared from the radar screen can only be judged as the crash site, thus bringing about the determination of the location. Difficulty in range; ② Unable to know the exact location where the flight data recorder fell
Due to the large scattered area of ​​the crashed aircraft, the search range is uncertain, so a large-scale and large-scale search for a needle in a haystack can only be carried out at the scene of the air crash; ③Single-frequency non-directional positioning signals are easily interfered by the surrounding electromagnetic environment , the underwater surface is easily affected by background noise, resulting in many false targets; ④The single-frequency non-directional positioning signal does not contain any auxiliary positioning information, and can only manually judge the approximate orientation according to the strength of the energy; ⑤The time available for searching is not long enough , the success rate is not high

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
  • Stepping inquiry-response locating system for flight data recorder
  • Stepping inquiry-response locating system for flight data recorder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The step-by-step query-response positioning system for flight data recorders provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 As shown, the step-by-step query-response positioning system for flight data recorders provided by the present invention includes an FDR airborne Beidou positioning device 1 and a ground mobile search positioning device 2; wherein: the FDR airborne Beidou positioning device 1 is installed in the flight The interior of the data recorder has the functions of real-time positioning, automatic status detection, automatic answering and broadcasting using the Beidou system; the ground mobile search and positioning device 2 is installed inside the mobile ground station for search and rescue, which can receive FDR airborne Beidou through the Beidou system The location information sent by the positioning device 1 is used for searching and po...

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 discloses a stepping inquiry-response locating system for a flight data recorder. The stepping inquiry-response locating system comprises a flight data recorder (FDR) airborne triones locating device and a ground mobile searching and locating device, wherein the FDR airborne triones locating device is installed in the flight data recorder; and the ground mobile searching and locating device is installed in a mobile ground station for search and rescue. The stepping inquiry-response locating system for the flight data recorder adopts a triones navigating and locating system, an inquiry-response mode and a multi-point locating system, and transmits a radio data packet which contains an identification code and position coordinates and has a designated response signal frequency,a searching and locating method comprises a mutual corroborating mode of the position coordinates of a cooperative and related locating algorithm, so research and rescue personnel can quickly find the flight data recorder of a wrecked airplane according to the received triones coordinate information and designated frequency, accordingly, the purpose of quickly finding an object is realized, a great deal of manpower, resources, financial resources and time can be saved, and the rescue efficiency is improved.

Description

technical field [0001] The invention belongs to the field of aviation technology, in particular to a Beidou navigation system-based step-by-step query-response search and positioning method for a flight data recorder (FDR, commonly known as a "black box") for recording the running state of a vehicle. Background technique [0002] The agency responsible for the investigation of aviation accidents in the United States-the former vice chairman of the National Transportation Safety Board and safety expert Robert Francis said, "If the flight data recorder cannot be found, it will be a great shame to the aviation industry. Because if we want to To avoid similar tragedies, we must first know what went wrong." Boeing once said: "Many times, we can only improve aircraft by finding faults through air crashes." Relying on the flight state parameters recorded by the flight data recorder, accident investigators can directly obtain or infer the cause of the aircraft crash. These flight s...

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): G01S19/42
Inventor 宫峰勋马艳秋
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