Sensor Network
A sensor network is composed of a large number of sensor nodes that are densely deployed either inside the phenomenon or very close to it. The position of sensor nodes need not be engineered or predetermined. This allows random deployment in inaccessible terrains or disaster relief operations. On the other hand, this also means that sensor network protocols and algorithms must possess self-organizing capabilities. Another unique feature of sensor networks is the cooperative effort of sensor nodes. Sensor nodes are fitted with an onboard processor. Instead of sending the raw data to the nodes responsible for the fusion, they use their processing abilities to locally carry out simple computations and transmit only the required and partially processed data。
傳感器網絡由大量的傳感器組成，傳感器節點部署的位置可以不受距離的限制。
Two types of sensor network
- 分佈式節點被部署僅用於數據的採集，例如交通監測。
2. 分佈式節點不僅可以採集數據，還能對數據進行處理和儲存。從圖中可以看出，節點向數據中心傳送處理後的數據而不是原始數據。
A Survey on Sensor Networks
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1024422
Data-intensive System sildes from University of St Andrews