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Aircraft noise aggregation system

Total aircraft noise aggregation and analyzation support

Photo of aircraft noise aggregation system

The purposes of aircraft noise measurement vary greatly--from monitoring for environmental quality standards to defining noise areas based on the Aircraft Noise Prevention Law--but no matter the intention, compiling and analyzing measurement data and then summarizing the results are essential. Nihon Onkyo Engineering's aircraft noise aggregation system enables efficient and automated management of measurement data as well as summarization and analysis, which usually must be done by hand. We offer a wide range of support depending on the purpose and scale of the noise monitoring, from construction of single-computer systems to large-scale systems with multiple computers.

Data collection and remote monitoring for measuring equipment connected online

One way to collect aircraft noise measurement data is to travel to the equipment location and transfer the data onto a USB drive or other device. This, however, is troublesome and time-consuming when monitoring is constantly performed throughout the year or if the number of observation points is high. Nihon Onkyo Engineering's automatic measuring device (DL Series) includes a LAN interface and can be customized with additional equipment according to the communication line (VPN line, public line, mobile communication network, etc.), facilitating online connectivity. This connectivity not only reduces the effort required for data collection but also allows for remote monitoring of measurement equipment installed in separate locations. Although online connectivity makes large-scale systems with continuous observation of more than 100 locations a possibility, the aircraft noise aggregation system for such systems must be able to perform load balancing for aggregation-related processes and to manage data with consideration for fall tolerances. At Nihon Onkyo Engineering, our goal is to propose the best solution according to the scale of the entire system, from small-scale systems with a single computer to large-scale systems with multiple servers.

Advanced analysis of noise influence through matching with operation data

Image explaining operation data matching

Airport operators manage information necessary for air traffic control. This information is called "operation data." Operation data includes airplane arrival/departure times, flight numbers, destination and origin information, purpose of flight, and the model and operating company of the airplane. Checking this information against measured aircraft noise data allows for analysis of various kinds of noise, such as the following.
? Identification of aircraft noise according to aircraft departing from / arriving at a specific airport
? Analysis of noise influence of taking off vs landing aircraft
? Analysis of noise influence by model
In order to meet the needs of users, Nihon Onkyo Engineering's aircraft noise aggregation system is capable of providing a variety of analysis functions based on matching of the operation data and aircraft noise.

Complete automation of aggregation through linkage with takeoff/landing runway determination system (DL-TLS)

Image of linkage with DL-TLS system

Nihon Onkyo Engineering has developed a takeoff/landing runway determination system (DL-TLS) that automatically measures operation data, including information necessary for assessing the influence of noise. Utilizing measurement data gathered from a DL-TLS system allows not only for analysis of the effects of noise without having to receive operation data from the airport management but also for more advanced analysis using runway operation information not generally included in operation data, such as aggregation according to runway operation. Linking the aircraft noise aggregation system with the DL-TLS system allows users to fully automate processing, from measuring aircraft noise to calculations and analysis.

Flexible customization to meet user needs

Nihon Onkyo Engineering's aircraft noise aggregation system can be customized and modified as follows according to user needs and requests.

  • Modification of various report forms in addition to added aggregation and tabulation functions
  • Integration with aircraft noise measuring instruments from other companies and conversion of past measurement data
  • Addition of aggregation and tabulation functions for related data such as weather
  • Technical proposals for information disclosure (delivery via internet, etc.) and operation support

Support for improving efficiency through data sharing and aggregation system integration

Aircraft noise monitoring around airports and airfields is generally carried out by several municipalities. Although in most cases the municipalities will maintain and manage their own measurement equipment and aggregation systems, some purposes (for example, monitoring noise contours) will require comprehensive evaluation of measurement data across regional boundaries. Nihon Onkyo Engineering proposes the necessary technology and operation support by sharing measurement data from one continuous monitoring station among the local governments (data sharing) or by unifying the aircraft noise aggregation system with multiple local governments (aggregation system integration).

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