

1. Field of Science and Technology This project belongs to the field of advanced cockpit display and control technology for avionics. In 2014, a self-research project was established within the Institute of China Aviation Radio Electronics. 2. Main technical innovations This project carried out a research on a configurable comprehensive alarm generation and calculation technology under airborne conditions, analyzed the architecture, interfaces and data flow of traditional crew alarm systems, faced with the trend of software universalization and platformization, fully captured the current demand for advanced cockpit crew alarm systems for new and modified aircraft, a comprehensive alarm general architecture and standardized fault library template were built. A general-purpose fault library tool and a general-purpose fault library engine for comprehensive alarm based on configuration have been designed to realize the universal design of the unit alarm system, which has strong practical significance and promotion value. 3. Technical indicators (1) Comprehensive alarm general architecture: Compared with traditional design solutions, the product development cycle will be shortened by at least half;(2) Configuration based comprehensive alarm general fault library: This fault library is all airborne systems configured according to standardized templates. Fault alarms, compared with traditional narrative requirements, the time required to design a fault alarm requirement is less than 5% of the original;(3) Configuration based comprehensive alarm general fault library tool: The fault library tool can convert the fault library into airborne fault library data without manually designing the airborne fault library data, saving labor costs;(4) Configure-based comprehensive alarm universal fault library engine: The verified fault library engine does not need to be redesigned. Fault alarm logic is designed separately, while the traditional design manually designs each fault alarm logic separately, which will result in a design error rate of more than 10%. 4. Intellectual Property This project studied a configurable comprehensive alarm generation and calculation technology under airborne conditions, proposed a crew alarm system (CAS) solution based on ldquo; fault library-tool-engine rdquo;, redefined the CAS development method, transformed CAS requirements management and product design, optimized CAS software architecture, and shortened the cycle from user demand capture to product delivery. The inverse Polish transformation algorithm is used to realize a fault alarm logic expression method suitable for the airborne environment, which significantly improves the efficiency and robustness of fault alarm logic processing. An independent and scalable fault library engine has been built, which reduces the coupling between CAS internal modules and fault libraries, and improves the efficiency, reliability and maintainability of CAS products. This project has applied for 1 invention patent and published 2 papers, which solves the shortcomings of unclear interfaces and high functional coupling of traditional unit alarm systems. 5. Application and promotion status The technical achievements of this project can meet the needs of new generation aircraft and modified aircraft for advanced cockpit crew warning systems. The project results have been applied to many aviation model projects such as C919 and Y12F, and have been promoted to many new military and civilian aircraft model projects. The application market is huge. Application practice has shown that compared with traditional design solutions, the product development cycle of this technology will be shortened to half, the overall technology will reach the domestic leading level, and the core key technologies will be independently controllable.
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