Abstract
This paper proposes and validates a system for measuring the flexed posture of the flexible mono-tread mobile track (FMT) using a flexible displacement sensor (FDS). The FMT proposed previously has a single track and vertebral structure. The flexed posture of the FMT determines its turning radius and direction; thus, knowing its posture is important. However, it is impossible to measure the shape of flexible mobile systems using sensors located internally, such as a rotary potentiometer, or located externally, such as a laser scanner. To solve the problem, we introduce the FDS to measure the flexed FMT shape. The sensor consists of two fixed electrodes, a sliding electrode, and a nylon string coated with carbon (NSCC). It works as a flexible potentiometer by moving the sliding electrode along the NSCC while maintaining electrical contact. The measurement system is implemented in a prototype of the FMT called RT02-WORMY and is validated in a series of experiments.
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Kinugasa, T., Otani, Y., Haji, T., Yoshida, K., Osuka, K., Amano, H.: A proposal of flexible mono-tread mobile track. In: Proceedings of IEEE/RSJ International Conference on Intelligent Robots, pp. 1642–1647 (2008)
Akagi, T., Dhota, S., Hamamoto, I.: Development of string type flexible displacement sensor and its application. Trans. Jpn. Soc. Mech. Eng. C 74(746), 2528–2534 (2008)
Okubo, H., Komatsu, N., Fukudomi, O., Tsumura, T.: Shape measurement and estimation of flexible structures using a laser scanner. Trans. Jpn. Soc. Mech. Eng. C 591(565), 2676–2681 (1993)
Camarillo, D.B., Loewke, K.E., Carlson, C.R., Salisbury, J.K.: Vision based 3-D shape sensing of flexible manipulators. In: Proceedings of IEEE International Conference on Robotics and Automation, pp. 2940–2947 (2008)
Gentile, T., Wallace, M., Avalon, T., Goodman, S., Fuller, R., Hall, T.: Angular displacement sensor. United States Patent, No. 5086785 (1992)
Williams, N., Miles, J.J., Penrose, T., Hollands, R., Barker, A.T.: Glove for making goniometric measures. United States Patent, No. 6325768B1 (2001)
Morimoto, S., Yamashita, T.: Development of a two axis flexible electrogoniometer applying electro conductive rubber. Biomechanism 12, 223–230 (1994)
Shinohara, T., Dohta, S., Matsushita, H.: Development of a soft actuator with a built-in flexible displacement sensor. In: Proc. of 9th International Conference on New Actuators, pp. 383–386 (2004)
Kure, K., Kanda, T., Suzumori, K., Wakimoto, S.: Intelligent FMA using flexible displacement sensor with paste injection. In: Proceedings of IEEE International Conference on Robotics and Automation, pp. 1012–1017 (2006)
Akagi, T., Dohta, S.: Development of stroke adjustment McKibben artificial muscle and its control valve using small-sized linear encoder. In: Proceedings of SICE Annual Conference, pp. 3843–3852 (2005)
Kinugasa, T., Haji, T., Yoshida, K., Osuka, K., Amano, H.: Mobility and operability of flexible mono-tread mobile track (FMT). In: Proceedings of IEEE International Workshop on Safety, Security, and Rescue Robotics, pp. 65–70 (2008)
Kinugasa, T., Haji, T., Yoshida, K., Osuka, K., Amano, H.: Modeling and lateral movement of flexible mono-tread mobile track (FMT). In: Proceedings of 16th International Conference of the International Society for Terrain Vehicle Systems, pp. 119–124 (2008)
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Kinugasa, T., Akagi, T., Haji, T. et al. Measurement System for Flexed Shape of Flexibly Articulated Mobile Track. J Intell Robot Syst 75, 87–100 (2014). https://doi.org/10.1007/s10846-013-9869-8
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DOI: https://doi.org/10.1007/s10846-013-9869-8