GPS/GPRS tracking device

  • integrated AVL solution for fleet management systems
  • engine cut-off relay in case of vehicle theft
  • PanicButton and DoorTamper digital inputs
  • CAN V2.0B interface
  • iButton driver identification interface


ubiqAVL is an embedded Java platform designed for fleet management systems, combining a state-of-art processing ARM9 core and GSM/GPRS modem with automotive power supply, interfaces to in-vehicle equipment and external GSM antenna. The core of the system is TC65i, a high-performance openplatform Java module from Cinterion.

Standard CAN FMS interface is used to read speed, mileage, fuel and other useful information from vehicle's ECU. Three digital inputs are used to read status of ignition key, door switch or panic button and one digital output is used for engine cut-off on unauthorized access. A GPS receiver can be connected on the RS232 interface for precise location of vehicles.

Other sensors like Temperature, iButton for driver identification or extra Analog/Digital inputs can be interfaced via the OneWire bus. The system has an external small GSM antenna. The device can be equipped with optional internal LiPo battery, as a backup power supply.

ubiqAVL functional block diagram



  • vehicle fleet management systems
  • car alarm with remote engine immobilization and SMS notification

Technical specifications

power supply 7...30Vcc/ca, 36mA IDLE, 173mA GPRS
processor/memory ARM9, 1.7Mb FLASH, 400kb RAM
user application code Java TM, IMP-NG profile & CLDC 1.1 Hl
GSM modem GSM 850/900/1800/1900MHz, GPRS class 12
RS232 interface  Vimax = ±25V,  Vomin = ±5.4V @ 3Kohm, RXD/TXD, RTS/CTS, RJ11 6pins
CAN interface OPTIONAL, V2.0B, on-board terminator 120ohm AC
OneWire interface OPTIONAL, power supply output for external sensor
interfata Bluetooth OPTIONAL, V2.0+EDR, class 2, antena integrata, SPP
external GPS receiver OPTIONAL, SiRF Star III, 20 channels
enclosure dimensions  102.5 x 61.5 x 26mm (max 166.3 x 61.6 x 26mm with antenna and connector)
protection class  IP42
weight 90g...200g
operating temperature -30°C...+65°C