Airport navigation lighting system is an important reference for aircraft landing and ground taxiing. In recent years, with the advent of LED navigation aids, it is a major improvement in the technology of navigation aids. Early listing, because of its high price is difficult to promote in the civil aviation industry, and as technology matures and process improvement, LED lamps compared to the traditional lamp price gap is gradually reduced, and its operational stability, light source life, color, Luminous uniformity, energy-saving advantages are obvious, which gives LED navigation lighting in the airport to promote the convenience of the conditions.
According to the data from 2017, the number of domestic airports reached 32 million with passenger throughput reaching more than 10 million. Taking the capital airport where the author is located as an example, the number of flights still shows an increasing trend each year, and the aircraft models are also getting larger and larger. There are airlines queuing to enter the capital airport flight time, in this context, the contradiction between the operation of the aircraft and ground facilities maintenance is increasingly apparent, therefore, to improve the stability of the ground facilities reached a consensus within the airport.
This year, on the basis of adhering to the bottom line of flight safety, the CAAC proposed the concept of high-quality development and put forward even higher requirements for the operation and management of airports. Runway safety is also the top priority. Against this background, the runway protection Safety, shift the focus of work to the maintenance of the runway facilities, reached a consensus within the airport, LED lighting due to its low failure rate, reducing the workload of maintenance personnel, improve the stability of the navigation light system, the focus of the transfer of the best select.
LED lighting has so many advantages, but its application status in China is not optimistic. The reason is that one is the dimmer matched with LED lamps and the development trend of isolation transformers lags behind. The existing facilities are poorly matched with lamps and lanterns, Good effect, need to invest a certain cost upgrade; Second, LED lamps and lanterns more technical maintenance than traditional lamps and lanterns, technical mastery of the led lighting manufacturers, there are technical barriers to the existing maintenance; Third, LED lamps and lanterns compared to the traditional lamp prices still exist gaps, The sensitivity of the price, can not be applied in large area; Fourth, the domestic airport flight volume did not reach the magnitude of the Capital Airport, maintenance and operation of the conflict is not so prominent as the Capital Airport.
There is also a problem that can not be ignored is that northern airport winter snowfall or low visibility of the weather more, LED lamps in their own fever and low visibility penetration than the traditional lamps and lanterns poor, northern airport snowing, LED lighting snow melting ability Still need to observe, in terms of penetration, even in the field of civil lighting slightly lower safety margin, such as car lighting, there are few cases of LED headlamps to install LED light, further illustrate everyone's concerns about this issue. And LED lamps because of their long life cycle, the intensity attenuation has not been a more comprehensive statistics (the industry light source lamp intensity decay to 50% of the specified value as the failure criteria), still need to follow-up verification.
For taxiway lighting aids, due to the low light intensity standards, the above problems are negligible, but because of the high visual requirements of runway lighting, the application of a certain degree of difficulty.
In summary, Capital Airport, as the leader of the domestic airport industry, should uphold the concept of leading the industry development mission, a comprehensive assessment of the promotion prospects of LED lamps and the impact on the existing maintenance work, and actively promote the application of LED lamps in the airport .
Secondly, relying on the statistics, the operation of LED lamps at Capital Airport has been preliminary verified (Beijing Capital Airport installed more than 200 sets of LED slides in the Eastern taxiway in 2014, the test situation is better), grasp the diversity of LED lighting brand and Technical differences, as well as a wide range of applications and the original navigation light circuit with the convergence, to achieve a smooth transition, with the guidance issued by the industry guidance to verify the effect of the use of low temperatures in winter, becoming the airport next step further Work carried out.
Thirdly, the application of LED navigation lighting in the airport should be carried out step by step. Initially, it can be installed in the area where parking is difficult and the lamps and lanterns are relatively frequent. For example, it is quickly removed from the taxiway area and then gradually popularized in the audience area. The following aspects: First, conscientiously apply LED lighting rules and standards, in accordance with the provisions of procurement, installation, to ensure that meet the requirements of the Bureau; the second is to clarify the LED lighting repair, testing details of work to speed up maintenance personnel training progress and improve disposal capacity ; Third is to increase new lamps, new scientific research projects in this field to promote efforts to coordinate the Bureau, lighting manufacturers to assess the new lamps and lanterns, technology in the airport application prospects and explore ways to enhance the safe and stable operation of airport lighting system, an effective way; It is actively promoting the construction of aids to lighting lighting laboratories and echoes with the new facilities and technology promotion so as to create good preconditions for its application at the airport.
Finally, large airports should pay close attention to the application situation of international large-scale airport LED lighting and navigation lighting research and development trends, the establishment of the airport and the airport and lamp manufacturers working contacts between the realization of information technology sharing. At this stage, large-scale airport runway application of LED navigation lighting should be cautious.