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Currently many underground coal mines worldwide have installed or been planning to install a tracking system to trace miners mainly for their safety. Although many systems have been reported functional, a lack of sophisticated and systematic error correction methods apparently is still an issue for them; often it results in a low system resolution. To improve the system resolutions, this paper introduces two position adjustment methods for mine tracking systems. The first is an entry-matching method that optimally adjusts an off-course tracking device to the closest tunnel (entry). The second is a distance measurement adjustment method that accurately adjusts the position of a tracking device along an entry according to a measured distance from the device to a reference point. The coplanar node-path network mine model is used as the foundation for the development of these two methods.
| Author(s): | Li-J, Snyder-DP, Damiano-NW |
| Reference: | Proceedings of the ION International Technical Meeting (ITM) 2009, January 26-28, 2009, Anaheim, California. Fairfax, VA: The Institute of Navigation, 2009; :814-821 |
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