Real Time Locating System

Ambience Monitoring

Air pollution is an important environmental issue that has a direct effect on human health and ecological
balance.Factories, power plants, vehicles, windblown dust and wildfires are some of the contributors of
pollution.

Brief Overview

The availability of consistent, accurate and timely information on environmental conditions improves
the speed of planning and decision making. Such information, although required for most businesses,
is of particular importance in chemical factories, mines and other high investment industries. The
availability of precise information enables businesses to respond in quick time and take preventive
measures against emission of poisonous gases and other hazards, thus improving the safety of
personnel and equipment.

System Architecture

PervCom’s Wireless Sensor Networks based Real Time Sensing System (RTSS) solution is attuned for
ambience monitoring and it comprises of

• A multitude of bi-directional radio transceivers with sensors known as PervTrack Sensor Nodes.
  The sensors include a wide variety of pollution detectors and are connected together using the
  communicational capability of the wireless nodes to form the core of our proposed pollution
  monitoring system. Sensors capture pollution data and communicate them wirelessly over the
  network to a remote control station for further analysis and generation of alerts during critical
  events


• The PervTrack Sensor Nodes are arranged in a networking topology called “mesh”.Mesh network
  is a type of network where each node can communicate with multiple other nodes thus enabling
  better overall connectivity than in the traditional hub-and-spoke or star topologies. State of the
  art mesh networks often have some or all of the following characteristics:
  
  
  a)They are self-forming.  As nodes are powered on, they automatically enter the network,
     compute efficient routes for data forwarding through their neighbors and are ready for
     operation.
  
  b)They are self-healing.  As a node leaves the network, the remaining nodes automatically
     re-route their packets around the out-of-network node to ensure a more reliable
     communication path.
  
  c)They support multi-hop routing.  This means that data from a node can jump through multiple
     nodes before delivering its information to a host gateway or controller that may be monitoring
     the network thus extending the reach and range.

The self-forming and self healing coupled with battery operable attributes of a mesh sensor network
make it ideal for environmental monitoring applications in a wide range of facilities.