Wireless Sensor Network

WSN system leverages the power of wireless to connect with multiple sensors to single user interface. The WSN system acts as a data acquisition and smart control over various sensors. WSN is an outdoor wireless system for applications like home automation, smart agriculture, smart city, industrial control, AMR, Smart Energy and more. The WSN system has Zigbee/Bluetooth/Wi-Fi Nodes, Gateway and Router. The system allows access to the sensors from remote online locations over internet.


WSN node has sensors or actuators which can be monitored or controlled through wireless interfaces like Wi-Fi, Bluetooth or Zigbee.

WSN node is a small, very low power and low cost module that can work independently or can connect with one or more nodes easily. WSN node is modular such that it can be configured for different wireless interfaces, sensors, and actuators.



WSN Programming carries
Benefits
  • Enables the upgrade or change of firmware versions without physical access
  • Enables to recover sensor node which gets malfunction
  • Discover nodes in the area by sending a broadcast discovery query
  • Upload new firmware in a couple of minutes
  • No interferences: OTA is performed using a change of channel between the programmer and the desired node so no interferences are generated to the rest of the nodes
Topologies
  • Direct access: when the nodes are accessed in just one hop (no forwarding of the packets is needed)
  • Multihop: when the nodes are accessed in two or more hops. In this mode some nodes have to forward the packets sent by the Gateway in order to reach the destination
Modes
  • Unicast: Reprogram a specific node
  • Multicast: Reprogram several nodes at the same time
  • Broadcast: Reprogram the entire networ