1. Vehicle Security Systems
Central Locking Systems
Remote controlled
Dead Locks
Alarm Systems
Insurance Approved (Cat 1)
Immobilisers
Factory Fit
Post manufacture

2. Central Locking Systems
Remote Control
Infrared
Direct Line of Sight
Radio
Can Travel Through Objects
Current chosen method

3. Central Locking Systems
Components
Transmitter
Receiver/ECU
Can adopt a rolling code method for added security.
Actuators: DC Motors, Solenoids and Stepper Motors.

4. Radio Transmission
FM UHF is normally the radio frequency used for remote control operation.
A frequency of MHz is the carrier wave and the modulation of this wave carries the information/code.

5. Security Systems THATCHAM
Category 1 - Electronic Alarm and Immobiliser
Category 2 - Electronic/Electromechanical Immobiliser
Category Electronic Alarm Upgrade [General Application]
Category 3 - Mechanical Immobiliser
Category 4 - Wheel Locking Devices
Category 5 - After-Theft Systems for Vehicle Recovery

6. Security Systems THATCHAM
Category 1 - Electronic Alarm and Immobiliser
Alarm Perimeter detection Ignition detection Passenger compartment movement detection Inclination detection (Motorcycle only) Audible warning with battery back-up power supply
Immobiliser Passively set Isolates a minimum of two operating circuits or systems, or a minimum of one operationally relevant vehicle control unit with coded intervention

7. Security Systems ALARM
Perimeter Detection:- All entry points to the vehicle are protected/covered by switches.
Ignition Detection:- Powering of the ‘Ignition System’ / engine electrics, are monitored.

8. Security Systems ALARM
Passenger Compartment movement Detection:- Ultrasonic (Doppler Radar) Sensors. Using sound waves and time to detect changes to the vehicle interior.