Vehicle Anti-Theft

Standard BLE immobilizer architecture. The ABK100 keyfob can authorize the driver via automatic BLE ID broadcast or button press. AVT20 / AVT50 verifies the keyfob and enables BRY100 wirelessly.

System Architecture

Authorized Driver

ABK100 Keyfob

Passive Authentication

Automatic Broadcast

ABK100 continuously broadcasts BLE ID

Active Authentication

Button Press

Driver presses button on ABK100

Bluetooth Low Energy

AVT20 / AVT50

Hidden 2-Wire GPS Tracker

  • BLE authentication controller
  • GNSS positioning
  • LTE communication
  • Local authorization logic

Tracking Platform

BRY100

Standard BLE Relay
Wireless immobilizer control

Starter / Ignition / Fuel Pump

Vehicle Engine

Authorization mode

ABK100 Authentication Mode Selected

Passive mode or Active mode?

Passive Authentication

ABK100 broadcasts ID

Active Authentication

Driver presses ABK100 button

AVT20 verifies ABK100

YES

BRY100 enabled

Vehicle can be started

NO

BRY100 remains OFF

Vehicle cannot be started

Event reported to Tracking Platform

Authentication Modes

ModeLogicBest for
Passive Authentication — Automatic BroadcastABK100 continuously broadcasts its BLE ID. AVT20 detects the authorized keyfob automatically when the driver approaches the vehicle.Maximum convenience: daily use, fleet vehicles, passenger cars.
Active Authentication — Button PressDriver presses the ABK100 button. ABK100 transmits the authentication packet and AVT20 verifies it before enabling BRY100.Higher control: motorcycles, construction equipment, high-value vehicles.