Localization for cluster robots based on wireless, network

Wireless sensor networks are designed based on cluster robots in this paper, the wireless network location technology are researched, the methods of wireless network localization that based on trilateral localization method, ultrasonic ranging technology and RSSI ranging technology; The experiments show that accuracy of RSSI ranging localization is not very high, It can be used estimilate roughly for long-distance of the unknown node coordinates, when node´s distance is less than 5m away from the nodes, the ultrasound can be used for high precision localization.