User's Manual

Introduction to the TTMS System
System Operation
Tanker Truck Monitoring System- User’s Guide 3
1.1 System Operation
The valve and cover of each section are protected by an electronic seal with sensors. The
seals are monitored by the Reader installed in the cabin. The seals record various events
(according to the configuration) and transmit notifications such as open/closed to the Reader
via HF.
The TTMS Reader forwards the events received from the seals to the Control Center via
cellular, along with location and time information received via GPS. In the other direction,
commands from the Control Center are forwarded by the Reader to the seals.
In addition, the Seal Status Display shows, at a glance, a summary of the status of each seal
as OK (GREEN) or tampered (RED).
The following figure illustrates communication between the TTMS Reader and the other system
elements.