Aviation emergency locator beacon device based on Beidou

Abstract

The invention relates to an aviation emergency locator beacon device based on Beidou. By obtaining high-accuracy and high-reliability positioning information through a Beidou second-generation global positioning system independently developed by China, the problems that a traditional global satellite search and rescue system is large in positioning error and long in positioning time are solved; in addition, a Beidou positioning and communication system is independently developed by China, the blockade on techniques from foreign countries is broken through, and the Beidou positioning and communication system can be used for emergency positioning and military purposes under specific conditions. In coastal regions, the RDSS and RNSS technology combined differential positioning mode is put forward on the basis of a navigation radio beacon navigation and positioning system, and the positioning accuracy can be further improved. Meanwhile, alarm information is transmitted by the unique short message communication function of a Beidou first-generation satellite system and the 406 MHz satellite communication frequency band, and therefore the rescue search and positioning time can be effective shortened, the search and rescue efficiency is improved, positions of aircrafts in distress can be rapidly found by search and rescue ships or aircrafts, and the rescue speed is increased.

Description

technical field [0001] The invention belongs to the communication field of avionics systems, and in particular relates to a Beidou-based emergency position indicating beacon, which is a transmitter capable of autonomous positioning when an aircraft is in danger, and is mainly used for aircraft positioning and on-site personnel search and rescue. Background technique [0002] The positioning and search and rescue of aircraft accidents and crashes is a major issue that the aviation industry needs to solve. In recent years, there have been many accidents and accidents of aircrafts at home and abroad, and it is impossible to effectively locate and rescue them quickly, causing heavy losses to personnel and property. . In 2009, Air France flight AF447 was killed over the Atlantic Ocean. Air France spent a lot of money and time to find the black box. The first three searches cost a total of 17 million pounds, and the last search for the black box cost 7.6 million pounds. It took ne...

AI Technical Summary

Problems solved by technology

In 2014, Malaysia Airlines said it had lost contact with a Boeing 777-200 plane carrying 239 people and the control center. Malaysia Airlines had launched a rescue and contact mechanism to find the plane, but the missing plane did not send specific location information, so investigators could not determine what happened

Therefore, in the current situation of six satellites working, there is a certain waiting time for the target in distress, especially in the area close to the equator, the time interval between two satellites flying over the same area can be up to 1.5 hours

Moreover, the system is controlled by foreign countries, and its unique encryption mode is not open to our country, so it is not suitable for our country's life-saving positioning and military use under specific circumstances.

Images