Each user can take an instrument pack consisting of a DR-1000 GPS uplink radio along with various instruments connected wirelessly using DR-500 motes. The DR-500 uplink radio provides continuous location monitoring of the user, and routes data from local DR-100 motes back to the command post. Each DR-500 mote can be connected to one of the following instruments:

• Thermo Electron EPD Mk2 (using IrDA attachment)
• Thermo Electron E600 (using RS232 serial port)
• Vivometrics Lifeshirt (using SPI interface)

DR-500 motes enable hazmat suits to be worn by each user, and instruments being located either inside or outside the suit with no wire penetrations.

Command Base Radio

The command base radio receives data from up to 60 DR-1000 uplink units (to receive data from more users, you can easily scale the system up by having multiple command base radios.) The typical range of transmission is 2 miles, line of sight from each DR-1000 uplink unit. Frequency hopping, spread spectrum radio technology is used to provide reliable communications. Connection to a software system such as Thermo Electron ViewPoint is made using RS-232.
The base radio is mains powered.

DR-1000 GPS Uplink

Each user that requires monitoring must wear a DR-1000 GPS uplink unit. This acts as a local data routing hub, and will provides an uplink for any DR-500 motes that are within 50 feet. Up to 20 DR-500 motes are supported per a uplink unit.
Additionally, the DR-1000 contains a GPS receiver, and the coordinates of the device are regularly transmitted with all mote information to enable remote monitoring of the user along with all instrumentation.
An internal rechargeable battery will provide operation for up to 10 hours.

DR-500 Instrument Mote

The DR-500 instrument mote uses the latest low-powered radio technology to provide data transmission from instruments the user is both wearing or carrying to the DR-1000 uplink. The motes create a “mesh network” to provide redundant communication, both between each mote and the uplink.
Instruments will be polled for data by the DR-500 mote when necessary.
An internal batter will provide operation for up to 10 hours.

Instrument Packs

The DR-1000 has a configurable Pack Identifier (0-255). Each DR-500 also has a Pack Identifier that must be configured to match the users uplink unit, thereby creating an instrument pack. The system enables up to 256 packs to be concurrently operated and remotely monitored. This equates to 256 users.