ABSTRACT
A realtime posture tracking system has been developed using a network of compact wireless sensor devices worn by the user. Each device is a complete inertial/magnetic tracking unit which performs in situ orientation estimation based on its own sensor readings, using a complementary quaternion-based filter. Compared to existing systems which transmit raw sensor data to a PC for processing, it is shown that this technique reduces bandwidth requirements by 79% for typical usage. In combination with a time division multiple access scheme, this reduction allows for full-body tracking using 15 devices at a 64Hz update rate through a single 250kbps receiver. The data is applied to a rigid body model of the subject to provide a realtime display, and can be exported for use in major animation packages.
- Moven, Xsens Motion Technologies. {Online}. Available: http://www.xsens.com/download/MovenLeaflet.pdfGoogle Scholar
- Wireless InertiaCube3 Datasheet, Intersense. {Online}. Available: http://www.intersense.com/uploadedFiles/Products/InertiaCube3.pdfGoogle Scholar
- R. Zhu and Z. Zhou, "A real-time articulated human motion tracking using tri-axis inertial/magnetic sensors package," in IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 12, no. 2, June 2004, pp. 295--302.Google ScholarCross Ref
- C. Park, J. Liu, and P. H. Chou, "Eco: an ultra-compact low-power wireless sensor node for real-time motion monitoring," in Information Processing in Sensor Networks, 2005. IPSN 2005. Fourth International Symposium on, 2005, pp. 398--403. Google ScholarDigital Library
- C. Park, P. H. Chou, and Y. Sun, "A wearable wireless sensor platform for interactive dance performances," in Pervasive Computing and Communications, 2006. PerCom 2006. Fourth Annual IEEE International Conference on, 2006, p. 6 pp. Google ScholarDigital Library
- R. Aylward, S. D. Lovell, and J. A. Paradiso, "A compact, wireless, wearable sensor network for interactive dance ensembles," in Wearable and Implantable Body Sensor Networks, 2006. BSN 2006. International Workshop on, 2006, p. 4 pp. Google ScholarDigital Library
- A. Lynch, B. Majeed, B. O'Flynn, J. Barton, F. Murphy, K. Delaney, and S. C. O'Mathuna, "A wireless inertial measurement system (wims) for an interactive dance environment," Journal of Physics: Conference Series, vol. 15, pp. 95--100, 2005.Google ScholarCross Ref
- Application Note AN039 -- Using CC1100/CC1150 in European 433/868 MHz bands, Chipcon.Google Scholar
- ADXRS300 Application Note AN-625, Analog Devices.Google Scholar
- E. R. Bachmann, "Inertial and magnetic tracking of limb segment orientation for inserting humans into synthetic environments," Ph.D. dissertation, Naval Postgraduate School, Monterey, California, 2000.Google Scholar
- E. Foxlin, "Inertial head-tracker sensor fusion by a complementary separate-bias kalman filter," in Virtual Reality Annual International Symposium, 1996., Proceedings of the IEEE 1996, 1996, pp. 185--194, 267. Google ScholarDigital Library
- "Bvh format." {Online}. Available: http://www.cs.wisc.edu/graphics/Courses/cs-838-1999/Jeff/BVH.htmlGoogle Scholar
- dsPIC 30F3014/4013 Rev. A1 Silicon Errata, Microchip.Google Scholar
Index Terms
- Orient-2: a realtime wireless posture tracking system using local orientation estimation
Recommendations
Joint Sink Mobility and Node Deployment for Prolonging Lifetime in Wireless Sensor Networks
BCGIN '13: Proceedings of the 2013 International Conference on Business Computing and Global InformatizationWhen cluster heads transmit their data to the sink via multi-hop mode, the cluster heads closer to the sink are burdened with heavy relay traffic and tend to die early. In this paper, taking both sink mobility and node deployment into account, we ...
Fuzzy Logic-Based Sink Selection and Load Balancing in Multi-Sink Wireless Sensor Networks
Using multiple sink nodes in wireless sensor networks can greatly improve the lifetime and throughput of the network. One of the important issues in multi-sink wireless sensor networks is the congestion problem in sink nodes which reduces the ...
Node Placement Strategy in Wireless Sensor Network
The performance and quality of services in wireless sensor networks WSNs depend on coverage and connectivity. Node placement is a fundamental issue closely related to the coverage and connectivity in sensor networks. Node placement influences the target ...
Comments