OBCU
On Board Communication Unit
The RAMM On Board Communication Unit lies at the
heart of the modular vehicle system architecture and
has been designed by a development team with
extensive knowledge of the transport industry.

Locally developed, the unit has been thoroughly tested
in South African conditions and is appropriately splash
and dust-proof in an alluminium case.

Intergration of the unit with the vehicles electrics,
cellular phone and peripheral devices, is uncomplicated,
using a single 25 pin D-Type color coded harness.

The unit comes standard with GPS and GSM
antennas.

Positional data recorded by the GPS and status
information captured via sensors, is transferred through
a GSM cell phone to the control room software in
real time. On leaving coverage the unit records and
transmits automatically on re-entry into GSM coverage.

 TECHNICAL DESCRIPTION
  • GPS: 12 Channel receiver with 3m
    positional accuracy
  • Processor: Atmel micro controller
  • Power source: Range 8-30 Volts
  • Internal battery backup
  • Data storage: Memory capacity 1200 records
  • Data recorded: Date, Time, Longitude,
    Latitude, Speed, Distance plus four definable
    status contacts
  • Data compression: A sophisticated data
    compression algorithm is used to keep data
    transfer cost as low as possible
  • Communication: GSM GPRS Service
FEATURES
Extended Functionality
A peripheral device that has TCP/IP capability can
be attached to the OBCU. The device can be used
for in-cab communication with the control center.
 		Status Contacts
These can be coupled to switches and circuit
breakers.Four are implemented as standard:
  • Ignition status
  • Door opening and closing
  • Panic Alarm
  • Trailer connect and disconnect
Reporting
The frequency at which the unit reports is determined by three criteria
  • reporting time interval
  • distance travelled
  • change in heading / direction travelled

Exception Management
Vehicles can be managed by monitoring their
movements within defined areas classified as -
- No entry
- Confined
- Reporting
Entering and exiting defined areas will generate alarms
which can be forwarded via SMS messages.

Continual Recording
In the event of a communication breakdown no
data will be lost as all monitored data is stored
in on-board memory. User defined intervals of
historical data, recorded up to two and a half
months previously, may be recalled at any time
the unit is within the GSM coverage area.

FleetNet
The unit is designed to work with the Ramm
FleetNet service, to give you realtime fleet
management information via the internet.

PHYSICAL SPECIFICATIONS
  • Weight: 0.3kg
  • Dimensions: 102mm X 67mm X 45mm
Manufactured in South Africa



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