Development of long-term data acquisition system of noise exposure and personal behavior for analysis of health risk: Measuring equipments

• Published in: The Journal of the Acoustical Society of America Vol. 131; no. 4_Supplement; p. 3224
• Main Authors: Yonemoto, Yuichi, Ohya, Masaharu, Imaizumi, Hiroyuki, Fujimoto, Kazutoshi, Anai, Ken, Hiraguri, Yasuhiro
• Format: Journal Article
• Language: English; Japanese
• Published: Acoustical Society of America (ASA) 01.04.2012
• ISSN: 0001-4966; 1520-8524
• DOI: 10.1121/1.4708022

We have built a trial prototype of a long-term data acquisition system of individual noise exposure (hereafter referred to as HIKE) and have carried out technical verification of the system. HIKE consists of a noise exposure meter, a thermohygrometer, an illuminometer, and a smartphone. HIKE continuously measure LAeq,1s and global positions of subjects in daytime, and in addition environmental parameters such as atmospheric temperature, relative humidity and illumination in nighttime. The noise exposure meter should be as small and light as possible for the portability and equip longer battery-life to realize the long-term data acquisition. Global positioning system on the smartphone is utilized to detect the position of subject, and we have newly developed original software for integrating the functions of collecting, storing, and displaying all data measured on the smartphone. Wireless network is applied to connect the smartphone with other measuring equipments for convenience of long-term measurement, and to accumulate all data on a database server successively and prepare for health risk analyses. This report presents the system specification and the technical considerations for setting up HIKE.