The present system is directed to a computerized system for monitoring and controlling
remote devices by transmitting data between the remote systems and a gateway interface
via a packet message protocol system. The system comprises one or more remote sensors
to be read and possibly one or more actuators to be remotely controlled. The remote
sensor(s)/actuator(s) then interface with uniquely identified remote transceivers
that transmit and/or receive data. If necessary in individual applications, signal
repeaters may relay information between the transceiver(s) and the gateway interface.
Communication links between the remote transceivers and the gateway interface are
preferably wireless but may also be implemented via a mixture of wireless and wired
communication links. To successfully communicate between the transceiver(s) and
the gateway interface, the present invention receives a plurality of RF signal
transmissions containing a packet protocol via RF signals that includes sender
and receiver identifiers, a description of the packet itself, a message number,
any commands, the data, and an error detector. In addition, the packet protocol
can be easily integrated with alternate data communication protocols for use with
systems other than the Internet.