Wireless range extenders or wireless repeaters can extend the range of an existing wireless network. Range extenders can be strategically placed to elongate a signal area or allow for the signal area to reach around barriers such as those created in

zigbee的二维定位，定位算法是用dv-hop,用的是cc2430的芯片-zigbee two-dimensional position location algorithm is dv-hop, with the cc2430 chip