Noise mapping system with acoustical measurement blimp robot

Ryouzi Saitou, Yusuke Ikeda, Yasuhiro Oikawa

    研究成果: Paper

    抜粋

    To measure environmental noise in our living space, a lot of noise measurement and mapping systems have been studied. However, it is costly because many measurement points are needed to make a noise map. There are problems such as a measurement area reachable by human hands is limited. In recent years, with advances in unmanned aerial vehicle (UAV) technology, various types of UAV have been developed. When UAV is used to acoustical measurement, it can automatically acquire information such as the environmental noise not only on the ground but also in the air. Multirotor aircraft is frequently used as UAV, however, it causes loud noise as it must always rotate propellers during flying. In this paper, a noise mapping system with acoustical measurement blimp robot is proposed. The proposed system which is silent type of multirotor for acquisition of environmental noise is constructed. The total length of the system is 1.4 m, and the weight is about 1.4 kg. The system has six propellers to move omnidirectionally, and a system control board with a field-programmable gate array (FPGA) which integrates CPU for controlling propeller rotations, sound recording, communicating with host PC, and obtaining the information of the system motion. The proposed system requires positional information to make a noise map. Thus, simultaneous localization and mapping (SLAM) technique are applied for the positional tracking by using image signal processing. To evaluate our system, a preliminary experiment in the large room was conducted to make a simple three-dimensional noise map. The results show that the propeller rotation noise level was reduced 47 dB as compared with a general multirotor, and it could make a three-dimensional indoor noise map by combining the sound information and the positional information.

    元の言語English
    出版物ステータスPublished - 2017 1 1
    イベント46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017 - Hong Kong, China
    継続期間: 2017 8 272017 8 30

    Other

    Other46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017
    China
    Hong Kong
    期間17/8/2717/8/30

    ASJC Scopus subject areas

    • Acoustics and Ultrasonics

    フィンガープリント Noise mapping system with acoustical measurement blimp robot' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Saitou, R., Ikeda, Y., & Oikawa, Y. (2017). Noise mapping system with acoustical measurement blimp robot. 論文発表場所 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017, Hong Kong, China.