1) Science and Technology Field This project belongs to the field of avionics engineering and manufacturing technology. It comes from the scientific research plan project of Shanghai City Science and Technology Commission ldquo; Research on Helicopter Maritime Aviation Search and Rescue System for Maritime Applications rdquo;, topic number: 15DZ1160200. 2)Main technical innovations This project has carried out research on multi-source information fusion processing technology for maritime aviation search and rescue in response to my country's maritime and defense aviation search and rescue needs. It has researched and broken through key technologies such as airborne search and rescue multi-source positioning and search information integration, high-performance airborne electronic charts, visual display of search and rescue targets and situation, generation of search and rescue strategies and flight plans, and integration of search and rescue mission systems, and developed a new airborne search and rescue mission system prototype. Form a comprehensive sea and air search and rescue support capability integrating ground command, air search and sea rescue, and enhance my country's maritime aviation search and rescue capabilities. This achievement can be used for military and civilian maritime search and rescue aircraft and helicopters. The technological innovation situation is as follows: a) Aiming at the problem that multiple sensor information is dispersed and difficult to coordinate in maritime aviation search and rescue systems, a comprehensive processing method of multi-source sensor information for maritime applications is proposed. An airborne search and rescue mission system that integrates the automatic identification system (AIS), search and rescue radar response, VHF radio, Beidou, search and rescue beacons and other multi-source signals has been designed and developed, improving the ability to quickly identify and locate search and rescue targets; b) An airborne electronic chart search and rescue target trajectory fitting method is proposed (Acceptance No.: 201711071546.6), which solves the problem of discontinuous collection of track information of targets in distress at sea, improves the stability of tracking targets in distress, and improves the success rate of search and rescue;c) Proposes a maritime intermediate-frequency wireless chart update method, designs and develops electronic chart receiving and dynamic update software, realizes near-real-time update of charts within 300 nautical miles, and improves the accuracy of search and rescue target positioning; d) Proposed a simulation system and test method for airborne reception of maritime AIS signals (acceptance number: 201711292144.9), which can simulate maritime AIS data in the laboratory, providing rich test data for ground verification simulation, and improving verification efficiency. 3) Intellectual Property Status 2015 SR281919 Aiwei Beidou Positioning and Monitoring System Application Software V1.02018SR990418 Aiwei Aviation Search Electronic Chart Software V1.02018SR1070004 Aiwei Lidar Two-dimensional Image Processing Software V1.0201711071546.6 An airborne electronic chart search and rescue target trajectory fitting method 201711292144.9 A simulation system and test method for airborne reception of maritime AIS signals (PCT application) 201711308372.0 A simulation test system for medium and high frequency communication channels based on geographical information (PCT application) Zhang Guoxing, Chen Difei. Design of maritime emergency rescue service enhancement system based on regional collaborative remote sensing observation [J]. Information and Communication, 2019,(7).4) Application Promotion The technical achievements of this project can meet the requirements of multi-mode and integrated maritime aviation search and rescue missions. The main achievements of the project have been promoted and applied in general aviation low-altitude airspace management and have been successfully applied. In Chongqing Navigation Integrated Service Support System, Shandong Navigation Management Platform, Jingmen Airport, Xinjiang Police Aviation Management Command Platform, and Deqing Smart Navigation Platform, the cumulative contract amount is 91.5 million yuan. Application practice has shown that this technical achievement has increased the efficiency of maritime aviation search and rescue from 20% to 80%, and the search and rescue orientation accuracy can reach 5 deg;. The technology has reached the domestic leading level. It can be widely used in various civil/military search and rescue aircraft and helicopters. It is also suitable for maritime search and rescue ships and lifeboats.