Wireless Sensor Networks PPT
Wireless Sensor Networks Presentation Transcript:1. INTRODUCTION WSN
are used to collect data from the environment. They consists of large number of sensor nodes and one or more Base Stations. The nodes in the network are connected via Wireless communication channels. Each node has capability to sense data, process the data and send it to rest of the nodes or to Base Station. These networks are limited by the node battery lifetime.
It avoid lot of wiring. It can accommodate new devices at any time. Its flexible to go through physical partitions. It can be accessed through a centralised monitor.
It is very easy for hackers to hack it as we cant control propagation of waves. Comparitively low speed of communications. Gets distracted by various elements like Blue-tooth. Still costly at large.
4. Sensor node functionality
Each sensor node contains a computational module (a programmable unit) which provides computation ability, storage, and bidirectional communication with other nodes in the system Two advantages: They can be re-task in the field Easily communicate with the rest of the network
Each sensor patch contains a gateway node Each gateway node can communicate with the sensor network and provides connectivity to the transit network
6. Transit Network
Can consist of a single hop link or a series of networked wireless nodes Each transit network design has different characteristics Robustness Bandwidth Energy efficiency Cost Manageability
7. Base Station
Data storage for the collection of sensor patches WAN connectivity will be wireless Base-Remote link connection to the internet
8. WSN PROTOCOLS
Wireless sensor network routing protocols can be classified into following categories. Direct communication Flat protocols (Multihop) Hierarchical Routing Protocols
9. Applications of WSN
Environmental/Habitat monitoring Acoustic detection Seismic Detection Military surveillance Inventory tracking Medical monitoring Process Monitoring
10. For more please refer our PPT. Thanks.