The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Proceedings of the 13th International Conference on Human Computer Interaction with Mobile Devices and Services
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We present an ongoing series of tests that explore the capabilities of un-augmented smart phones to serve as indoor navigation devices. We developed and tested a dead reckoning navigation application on an IPhone 3GS. It was found that the DRec application can count steps with more than 97% accuracy. This parameter, when multiplied with the user's personal step distance can be used to compute distance traveled. In initial tests DRec was able to compute the distance traveled with more than 90% accuracy. A dead reckoning test was also run, and initial results are promising.