The development trend of China's avionics technology Wu Mingwang The development trend of China's avionics technology Wu Mingwang China Institute of Aeronautical Radio Electronics Shanghai summarized the importance of avionics in airborne equipment, introduced the development of avionics, and described the development of international cooperation The role of avionics pointed out that avionics training technology is an inevitable trend in the development of avionics. Keywords avionics comprehensive technology international cooperation CLC number document identification code article number 1 Diaojun civilian aircraft electronic technology is being highly valued The proportion of avionics in the total cost of aircraft is not enough, but by the time, with the continuous enhancement of aircraft functions, the proportion of avionics in the total cost of aircraft has risen to an individual aircraft or even reached due to avionics. The influence on the function and performance of the aircraft is increasing, so avionics is also being highly valued by the aviation industry (including users).
In the modern wars from the Gulf War to the Kosovo War, various countries have deployed a large number of military aircraft, especially developed countries such as the United States and Britain. In these wars, not only rely on military aircraft to launch a large number of weapons, but also use the aircraft Electronic equipment has launched electronic warfare and information warfare wider than electronic warfare.
Developed countries such as the United States and Britain rely on advanced airborne electronic warfare and information warfare equipment. Before the other party has launched an attack, the electronic equipment in its equipment is out of control or paralyzed. The United States and Britain also use information warfare. , The computer control part of the opponent's civil facilities is out of control or paralyzed, so that the opponent is in a passive beating situation.
A spear must have a shield. While aggressive equipment is competing for development, defense-based equipment will certainly develop.
Therefore, it is foreseeable that airborne electronic warfare and information warfare equipment will play a very important role in future wars.
The improvement of various functions of civil aircraft has also promoted the development of civil aircraft avionics.
In order to allow more and more airplanes flying in the air to safely and punctually deliver passengers to their intended destinations, in addition to using original navigation equipment and autopilot equipment, anti-collision was developed in the 1980s and 1990s The new navigation system and other equipment used for air traffic management after the 1990s, in order to further improve the safety and economy of flight, various organizations represented by the US aviation industry are working hard to develop an automatic related surveillance 1) Free flight concept based on satellite navigation technology.
Various avionics devices for navigation, positioning, communication, anti-collision monitoring, and other functions developed around the safety and on-time economy of civil aircraft have been greatly developed in the twentieth century.
It is foreseeable that the avionics technology of the century will further develop with the continuous increase of aircraft functions, and the importance of avionics will become more prominent in the century.
Avionics integrated technology is the inevitable trend of avionics development. The first phase of avionics technology (total period). The development process of avionics before the 1960s, the electronic equipment on the aircraft are divided into their own independent systems by function.
Their control equipment display equipment are installed in the cockpit, and other equipment are placed in the electronic cabin.
With the continuous increase of aircraft functions, not only the equipment in the electronic cabin is increasing, but also the control display equipment in the cockpit is increasing, so that the cables used to connect each other are also increasing.
As a result, the weight of electronic equipment and cables is severely overweight and the reliability is even worse, and because the pilot has too many devices to monitor and control, the work load is too heavy and the work efficiency decreases.
The early avionics integrated system is shown in the picture to solve the above-mentioned contradiction. It will integrate the controllers and displays for various functions in the cockpit, and replace it with a comprehensive control display system.
Therefore, the pilot can see the various data and screens needed on one or two display screens. The multi-function display controller also uses the method of updating the screen, so that one screen can replace multiple control panels, so the integrated control wet display is used. After the system can greatly save cockpit space and reduce the workload of the pilot.
In addition, the avionics integrated system uses a multi-channel data bus, and a serial cable bus double-grain shielded wire) is used to replace the numerous connecting cables between devices, thereby reducing the total weight of the cable and improving reliability.
Control display data transmission host navigation fire control atmospheric engine sub-system equipment (system software) bus interface bus interface bus controller bus interface bus interface bus interface data bus diagram early avionics integrated system diagram with the continuous development of technology The avionics integrated system characterized by information integration has gone through the development stage of data processing and signal integration until the data fusion and the integration of sensors.
It can be seen from the table that avionics has experienced discrete airborne electronic equipment in the era, and has developed to the integration of data transmission and display of the generation, and after the integration of data processing in the 1980s, the development process of a new generation of avionics integrated systems in the direct era , Not only shows that the avionics integrated system is an inevitable trend in the development of avionics, but also shows that the avionics integrated system itself is moving towards a deeper level of development, to achieve a higher level of integration, thereby making the avionics integrated system more powerful and volume Smaller weight, lighter reliability, higher maintenance, more convenient and lower cost, and has advanced capabilities such as fault-tolerant reconfiguration resource sharing, and further has intelligent processing capabilities.
The general definition of avionics integrated technology is from a macro perspective. The integrated technology of avionics system is through system software and network technology, and uses basic equipment such as integrated control display and data transmitter. According to the overall needs of the aircraft, communication navigation is selectively identified Photoelectric detection, air traffic management, electronic countermeasures, information warfare, fire control, flight control, aircraft management and other functions and corresponding equipment are integrated into an organic whole to achieve a high degree of sharing of system resources and ensure that it has the best overall development of China's avionics technology. The development history of Wu Mingwang's avionics integrated system. Yuzen's equipment constitutes the main functions of the equipment. Separated airborne electronic equipment, take-off communication, navigation and ranging weapons were released before the time of return to the field. Airborne electronic warfare return airspace integrated air electronic system (the integrated stage of data information transmission and display) with core equipment such as investment system software and other core equipment Comprehensive Control and display system massive storage anti-collision) detection of weapons and electronic warfare storage data transmission equipment and other aeronautical electrical return to the field sub-synthetic system (data processing integration stage) in the era with application function integration and sensor integration as a special take-off new navigation system A new generation of avionics integrated system for air traffic management (digital and communication navigation (including satellite communication and satellite guidance fusion and sensor antenna integrated phase) navigation) monitoring and detection of weapons, electronic warfare information, warfare and return to the approach performance and life cost balance.
Essentially, avionics integrated technology is based on the development stage of integrated technology, from the initial data transmission and display integration, to data processing integration, until the future data fusion sensor integration and antenna integration.
Strengthening international cooperation in the development of avionics Today, strengthening international cooperation in the field of high technology is becoming a development trend. The progress and development of avionics as a high-tech industry must also conform to the trend of this era. The intensity of major international exchanges and cooperation, through various mutually beneficial market economic forms, to carry out various cooperation, to a certain extent, can promote the development speed of avionics technology.
In the past two years, the Institute has accelerated the process and speed of external cooperation, and has carried out various forms of cooperation with some avionics manufacturers, including Rockwell Collins of the United States, Honeywell (including Letter company) France Seckstein Company and Russian National Aviation System Research Institute and other units have achieved gratifying results.
In addition, because our location is in the Shanghai High-tech Development Zone, and the professional scope involves various fields of avionics, it also attracts some small and medium-sized companies abroad. They come to negotiate with us through different channels for projects of mutual interest. Looking for various ways to cooperate with us.
In this regard, we should seize the opportunity, forge ahead, and create a new century of avionics through international cooperation.
Of course, while emphasizing international cooperation, we should also pay more attention to cultivating and developing domestic avionics technical forces.
Because the fundamental driving force for the development of things is the internal cause, the development and progress of China's avionics technology must ultimately rely on its own power. International cooperation can only be used as an external condition in the development of China's avionics technology.
In fact, if China does not have a considerable technical level and strength, it is impossible to carry out effective international cooperation.
Therefore, no matter under what circumstances, vigorously cultivate and develop avionics technical force during the first period of the national avionics technology year, always positive and correct thinking.
In the new century, we must pay more attention to our country ’s scientific research strength, always aim at the development trend of avionics technology, strengthen the research on the new generation of avionics integrated technology, and unswervingly follow me to strive for international cooperation. Keeping in mind the reason behind being beaten, inspirational and innovative, strive to make China's avionics technology catch up with and surpass the world's advanced level, and stand in the forest of the world's advanced countries with a new look.
For the development of China's avionics comprehensive technology industry, based on foreign experience, it is a cost-effective way to modify a few generations of avionics equipment. In addition, with the enhancement of aircraft functions, the required avionics equipment is becoming more and more complicated. The degree of integration required is also increasing.
At present, the development direction of foreign countries is not only the integration of sub-systems, but also the stage of sensor integration and antenna integration.
Therefore, when the avionics integrated system contracting unit arranges personnel, it not only needs a group of people to conduct special research on the integrated technology, track the international advanced level, but also encounters a group of professionals to carry out the specific needs of the aircraft when encountering the type task Detailed analysis, targeted use of the integrated technology and mature serialized products that have been mastered, and put forward a suitable system comprehensive plan.
In addition, it is necessary to arrange a group of people to conduct special research on how to improve the avionics equipment of the old aircraft into a new avionics integrated system.
Avionics integrated technology and related subsystems have developed into a large industry abroad.
According to reports, some well-known foreign avionics manufacturers have annual sales of up to several billion dollars, of which the avionics integrated system is an important part.
Take Honeywell, for example, the company has used as many as 50 cockpit simulation systems for the integration of various types of aircraft avionics systems.
Our institute has accumulated considerable experience in the development of avionics integrated technology and subsystems. Therefore, developing our country's avionics integrated technology industry on the basis of the current conditions of our institute will be a faster and better way.
On the other hand, Shanghai is also a place where China's high-tech industries are concentrated. The world's most famous avionics manufacturers have established cooperative relations with our institute. We believe that through equal and mutually beneficial cooperation with foreign companies, we can introduce and absorb innovation and further Get beneficial results.
The Shanghai Municipal People's Government has given support to Shanghai's high-tech industry in the provisions of Shanghai Municipality on promoting the transformation of high-tech achievements in 1998.
We believe that with the support of leaders at all levels, our institute can use the high-tech advantages of Shanghai and various preferential policies of the Shanghai Municipal Government to develop an avionics integrated and related subsystem into a large-scale industry with good benefits. Shanghai has formed an avionics comprehensive technology industrial base and made due contributions to the revitalization of China's aviation industry.
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