Helios Tracking Modes
The Helios enables you to monitor vehicles at constant intervals or continually (this is
necessary, for example, in a car chase). The following three tracking modes are
available:
SMS Tracking – The Helios transmits at regular intervals in any available
communication channel (either SMS or TCP/IP). If no communication channel is
available, the unit saves the message until coverage is resumed. The shortest
interval available per message is one minute.
Roaming- This mode useful for pass country borders, the Helios transmits at
regular intervals that customized according to your requirements (via TCP/IP
channel or SMS). The Helios communicates with the local cellular operator of the
country it located.
GPRS Tracking – The Helios transmits up to once every ten seconds. GPRS
Tracking is only available if the unit is logged in to the TCP/IP network. If the
message cannot be sent, it is discarded. This mode can be used for tracking a
vehicle during a car chase.
The Communication Module
Communication between the Helios and Starcom software is performed through the
GPRS channel (for GSM networks) and 1x (for CDMA networks) or the SMS channel.
The following communication protocols are used: TCP/IP, SMPP, direct cable
connection, private network, and the UDP protocol for external applications.
SMS Channel – Can be implemented in two ways: Through a terminal unit
connected to the server computer, or, in a network with many Helios units,
through the SMPP protocol. SMPP protocol enables the system to receive SMS
messages directly and enables sending SMS messages to mobile network devices.
TCP Channel (GPRS or 1x) – The Helios connects to the network to send data
(either through the Internet or through a private network) and uses the TCP
protocol to send its data and receive commands from the Routing application.
Private Network – When there is a large number of Helios units in your Starcom
network, it is recommended to establish a private network with the cellular
operator. This enables all the Helios units to connect directly to the operator's
Routing application instead of connecting through the Internet. The private
network facilitates the fast flow of information, eliminates much noise, blocks
viruses, and lowers costs. The private network can be implemented either by
setting up a dedicated communication line or a VPN (Virtual Private Network) with
the cellular company.
The Routing Application – This is the core of the Starcom communication
system and is used to control the mobile network and the LAN/WAN
simultaneously. It supports receiving data messages from GPRS/1x and SMS
channels and from large numbers of GSM or CDMA units at the same time. The
Routing application is installed on a computer that functions as the system server.
It is the communication center for all the incoming and outgoing transmissions.
The Communication Module
4
Simulation Kit Manual