Be the first to like this
A 2D location detection system is constructed by using Wireless Sensor Nodes (WSN) to create aVirtual
Fingerprint map, specifically designed for use in an indoor environment. WSN technologies and
programmable ZigBee wireless network protocols are employed. This system is based on radio-location
fingerprinting technique. Both Linear taper functions and exponential taper functions are utilized with the
received signal strength distributions between the fingerprint nodes to generate virtual fingerprint maps.
Thus, areal and virtual combined fingerprint map is generated across the test area. K-nearest
neighborhood algorithm has been implemented on virtual fingerprint maps, in conjunction with weight
functions used to find the coordinates of the unknown objects. The system Localization accuracies of less
than a grid space areproved in calculations.