R-EMS is an innovative and comprehensive solution developed for managing aircraft noise, linking noise monitoring sites, offices and nearby residents.
R-EMS Configuration
Sound level meters are installed around the airport to measure aircraft noise and acquire flight track data.
Noise, flight tracks, operation records, and weather data are integrated to identify the noise level of each aircraft.
Operators can view and edit data using a web browser and can analyze and create reports.
Residents can view noise information on a portal site and check the airport’s environmental measures.
Technical points of R-EMS
Tracking flight path
ADS-B (Automatic Dependent Surveillance-Broadcast)
ADS-B is a system that allows aircraft to continuously broadcast their position and altitude. Unlike traditional transponder signals, which include only squawk codes and altitude data, ADS-B also transmits GPS-based position, unique aircraft identification, and other detailed information. By receiving and processing these signals, aircraft trajectories can be tracked. However, one limitation is that not all aircraft are equipped with ADS-B, meaning some cannot be tracked using this system alone.
PSSR (Passive Secondary Surveillance Radar)
PSSR is a unique technology of RION. PSSR is a method for tracking aircraft by analyzing both interrogation signals from Secondary Surveillance Radar (SSR) and transponder responses. Established in the 1980s, this technique provides accurate position data.
By tracking the positions of aircraft without ADS-B, including military planes and helicopters, it becomes possible to manage aviation noise more effectively. Compared to the ADS-B system, this method offers a more comprehensive approach, allowing for the monitoring of a wider range of aircraft types and improving the performance of noise management software.
Sound arrival direction
Identify the source of noise by using multiple microphones and analyzing the direction of sound arrival.
Professional acoustics
The amount of information contained in the noise data, including frequency changes, is outstanding, demonstrating the company’s strengths as a professional in the field of acoustics.
RION has been pursuing acoustic technology for 80 years, and has consistently developed both hardware such as sound level meters and software such as R-EMS in-house. In addition, it operates the Kobayashi Physical Research Institute, which contributes to the development of acoustic technology from basic research to practical application. This unique structure has enabled RION to maximize measurement accuracy and data reliability, building industry-leading technology.
RION’s sound level meters also boast the world’s top market share, and perform stably even in harsh temperature and humidity environments. They are robust and reliable, providing accurate data for long periods of time.
R-EMS is not just a noise analysis tool, but a solution equipped with advanced acoustic expertise, enabling high-precision measurement and analysis in any environment.