本發明提出一種定位方法,其中包括步驟:提供一參考節點與一感測節點,該參考節點設有一第一天線;該第一天線每轉動一水平角度,便自該參考節點廣播一訊號並量測該訊號被該感測節點接收時的接收訊號強度指數(Received Signal Strength Indication,RSSI),直到該第一天線轉動至少一預定次數;以及以該等接收信號強度指數來判斷該感測節點的位置。
A positioning method for a sensor node is provided, and the method includes steps of: providing a first antenna having a first omnidirectional radiation pattern on a first plane; rotating the first antenna about an axis substantially parallel to the first plane; transmitting a wireless signal while the first antenna rotates about the axis for every a predetermined central angle; receiving the wireless signal at the sensor node; obtaining Received Signal Strength Indications (RSSIs) of the respective wireless signals; and determining a location of the sensor node according to the RSSIs.
專利簡述 / Intellectual Properties:
聯繫方式 / Contact:
臺大產學合作總中心 / Center of Industry-Academia Collaboration, NTU