User's Manual

4
1 Introduction
The MicroObserver system is designed to provide a user with an easy-to-use, robust, scalable
wireless network that detects intruding persons and vehicles. The system may be used in
applications such as military reconnaissance missions, situational awareness scenarios, or for
perimeter security similar to industrial plant security and border protection.
The system consists of a remote gateway and multiple nodes which interface with a user-
supplied, user-interface display. The nodes are deployed in the area where it is desired to
monitor the presence of a person or vehicle. The gateway operates at a distance from the
nodes, far enough away to be somewhat remote, but close enough to still communicate with
them. Once deployed, the nodes and the gateway self-form a wireless network upon
command. The nodes functions as sensors, monitoring detections and reporting their relative
locations determined by means of Global Positioning System (GPS) to the user-interface
display.
2 Network Architecture
The MicroObserver System is a wireless three-tiered hub and spoke network consisting of
sensors, hubs and remote gateways. The system hardware is homogenous, meaning any node
can function as either a sensor, or a hub/sensor. There are no differences in either hardware
or software of these nodes. Sensors are deployed in a pattern best suited to complete the
mission objectives. The wireless connection is automatic and hubs are selected by the
system based on their ability to communicate with all of the sensors in their area and the
gateway. For larger areas, multiple hubs will be selected by the system. To enhance the
energy management feature on the production system, hubs will rotate automatically within
an area when the network is reformed.
Figure 1 shows the basic system connectivity with the Gateway, Sensors and Hub/Sensors.