在無線感測網路下，感測器節點會將自身所感測到的資料，透過多點跳躍的方式將資料傳給資料收集點，而鄰近資料收集點的感測器節點在多點跳躍的情況下會產生熱點問題而成為整個網路的瓶頸，且在較大型的網路環境下的感測資料即時性將大幅下降。為此本論文提出了一個可以支援多行動資料收集點的資料傳送機制。在此方法中，假設行動資料收集點搭載著計時器裝置且彼此時間同步，透過週期性更新感測器節點的時間戳記值，當感測事件發生時，資料來源端利用廣播的方式將資料傳遞給自身的鄰節點，而各鄰節點透過比對自己與來源端的時間戳記值來決定是否繼續將此資料廣播出去，依此反覆進行便可以將資料傳遞至資料收集點且不需要任何的位置資訊即可運作。 In wireless sensor networks, sensor nodes will transmit the sensing data to sink through multi-hop, this kind of transmission will cause the hotspot problem, and also the effectiveness of sensing data will be decreased in larger network environment. To solve all these problems, we propose an instantaneous data dissemination mechanism which can use multiple mobile sinks to collect the sensing data. We assume mobile sinks have timer and they are time synchronized. Mobile sinks will periodically update the time stamp value of sensor nodes, nodes will decide to broadcast the sensing data or not by comparing the time stamp value when event occur. The sensing data will reach mobile sinks by doing this repeatedly without any location information.
