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Estimation of Speed and Direction of Travel in a WLAN Positioning System

  • US 20110058495A1
  • Filed: 11/12/2010
  • Published: 03/10/2011
  • Est. Priority Date: 05/08/2006
  • Status: Active Grant
First Claim
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1. A method used to estimate a speed of travel of a Wi-Fi enabled device without requiring position estimates of the Wi-Fi enabled device, comprising:

  • the Wi-Fi enabled device receiving signals transmitted by at least one Wi-Fi access point in range of the Wi-Fi enabled device, the receiving occurring over time;

    measuring at least one amount of time during which the Wi-Fi enabled device detects signals transmitted by the at least one Wi-Fi access point; and

    estimating the speed of travel of the Wi-Fi enabled device based on the at least one amount of time during which signals from the at least one Wi-Fi access points were detected, so that the speed of travel of the Wi-Fi enabled device can be estimated without requiring position estimates of the Wi-Fi enabled device.

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