TY - GEN
T1 - A Realistic Remote Gas Sensor Model for Three-Dimensional Olfaction Simulations
AU - Hullmann, Dino
AU - Neumann, Patrick P.
AU - Monroy, Javier
AU - Lilienthal, Achim J.
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5
Y1 - 2019/5
N2 - Remote gas sensors like those based on the Tunable Diode Laser Absorption Spectroscopy (TDLAS) enable mobile robots to scan huge areas for gas concentrations in reasonable time and are therefore well suited for tasks such as gas emission surveillance and environmental monitoring. A further advantage of remote sensors is that the gas distribution is not disturbed by the sensing platform itself if the measurements are carried out from a sufficient distance, which is particularly interesting when a rotary-wing platform is used. Since there is no possibility to obtain ground truth measurements of gas distributions, simulations are used to develop and evaluate suitable olfaction algorithms. For this purpose several models of in-situ gas sensors have been developed, but models of remote gas sensors are missing. In this paper we present two novel 3D ray-Tracer-based TDLAS sensor models. While the first model simplifies the laser beam as a line, the second model takes the conical shape of the beam into account. Using a simulated gas plume, we compare the line model with the cone model in terms of accuracy and computational cost and show that the results generated by the cone model can differ significantly from those of the line model.
AB - Remote gas sensors like those based on the Tunable Diode Laser Absorption Spectroscopy (TDLAS) enable mobile robots to scan huge areas for gas concentrations in reasonable time and are therefore well suited for tasks such as gas emission surveillance and environmental monitoring. A further advantage of remote sensors is that the gas distribution is not disturbed by the sensing platform itself if the measurements are carried out from a sufficient distance, which is particularly interesting when a rotary-wing platform is used. Since there is no possibility to obtain ground truth measurements of gas distributions, simulations are used to develop and evaluate suitable olfaction algorithms. For this purpose several models of in-situ gas sensors have been developed, but models of remote gas sensors are missing. In this paper we present two novel 3D ray-Tracer-based TDLAS sensor models. While the first model simplifies the laser beam as a line, the second model takes the conical shape of the beam into account. Using a simulated gas plume, we compare the line model with the cone model in terms of accuracy and computational cost and show that the results generated by the cone model can differ significantly from those of the line model.
KW - TDLAS
KW - gas simulation
KW - remote gas sensor
UR - http://www.scopus.com/inward/record.url?scp=85072976677&partnerID=8YFLogxK
U2 - 10.1109/ISOEN.2019.8823330
DO - 10.1109/ISOEN.2019.8823330
M3 - Conference contribution
AN - SCOPUS:85072976677
T3 - ISOEN 2019 - 18th International Symposium on Olfaction and Electronic Nose, Proceedings
BT - ISOEN 2019 - 18th International Symposium on Olfaction and Electronic Nose, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th International Symposium on Olfaction and Electronic Nose, ISOEN 2019
Y2 - 26 May 2019 through 29 May 2019
ER -