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Car alarm Radio Immobilizer System key (R.I.S.K) project
When designing the car alarm Radio Immobilizer System Key (R.I.S.K.) it became necessary to build into the (R.I.S.K.) immobilizer several safeguards,
which satisfy both the owner/driver of the motor vehicle and the effective police operation of the (R.I.S.K.) immobilizer in the emergency
situation.
The (R.I.S.K.) car alarm radio immobilizer system key needed to be an effective control method for the pursuing police vehicle, and yet the normal lawful use of
the motor vehicle had to have the ability to disable the (R.I.S.K.) radio immobilizer system key, to satisfy the privacy and independence of the
owner driver.
OPERATION of the car alarm RADIO IMMOBILIZER
To enable effective control of the (R.I.S.K.) immobilizer the following
operating procedures are being suggested as a standard.
1:
If the motor vehicle is started incorrectly without a ignition key and/or the
normal immobilizer is disabled or bypassed the (R.I.S.K.) immobilizer
defaults to the enabled condition, allowing the police in the pursuing
motor vehicle to control and stop the offending motor vehicle by transmitting a special code number and the
motor vehicle registration number, chassis number VIN or engine number without the need of any
additional pin numbers.
2: If the vehicle is started correctly with the ignition key and the
immobilizer is effectively disabled, the (R.I.S.K.) car alarm immobilizer defaults to a
disabled condition thus preventing the vehicle from being immobilized by a
pursuing police vehicle, unless the pin number of the (R.I.S.K.) car
alarm immobilizer is transmitted with the special code number first.
3: If the (R.I.S.K.) car alarm immobilizer is in the disabled condition, a
pin number may be transmitted to the (R.I.S.K.) car alarm immobilizer, which
would then re-enable the (R.I.S.K.) car alarm immobilizer allowing the pursuing
police to then stop the vehicle normally. This pin number allows the (R.I.S.K.)
car alarm immobilizer to ignore and override the normal operating signals from
the vehicle.
The pin number for the vehicle (R.I.S.K.) car alarm immobilizer can be given to the
police at any time by the owner, this allows the police to override any
disabling of the (R.I.S.K.) immobilizer.
If the owner/driver of a motor vehicle releases his motor vehicle under threat with
its keys, lets say at knife point in a car park, the motor vehicle will be
driven with the (R.I.S.K.) car alarm immobilizer in a disabled condition and it
would be necessary for the owner to supply the pin number for the motor
vehicle (R.I.S.K.) immobilizer when reporting the vehicle stolen to the
police authorities.
It would be possible for the pin number for
any (R.I.S.K.) car alarm immobilizer to be changed at anytime by the owner at any
authorized (R.I.S.K.) immobilizer agent thus allowing a new replacement
pin number after the vehicle is returned by police, after reporting the old pin to
the police authorities for a stolen or unlawful use of a motor vehicle.
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The (R.I.S.K.) car alarm immobilizer can be controlled by any police vehicle fitted out
with a (R.I.S.K.) car alarm controller, which is a computer which transmits via a radio
transmitter a serial digital signal which contains a function code and
either vehicle registration / chassis VIN or engine number.
The signal from the police vehicle is transmitted to all vehicles within the
proximity of half a kilometer range of the police vehicle, but only the
(R.I.S.K.) immobilizer that receives the valid registration number etc. will
respond to the special function code, which has been sent. The special function code may
contain any one of the following sequences of events to occur.
1: Flashing of the offending motor vehicles warning lights.
(Visual confirming the motor vehicle can be controlled).
2: Disabling of the offending motor vehicles engine.
3: Enabling of the offending motor vehicles engine and (resetting of the (R.I.S.K.) immobilizer).
If the pin number of the (R.I.S.K.) immobilizer is known by the police the pin
number must be sent first only if necessary (and only if the vehicle has
been started legally).
Only the police Road Traffic Authorities (RTA) will have the necessary controller
units to control the (R.I.S.K.) car alarm immobilizer, private owner controller
devices will not be allowed at any time, this is necessary to maintain
safety and security of the system.
PUBLIC CONCERNS
Considerable caution has been expressed by the public sector in allowing the police
authorities free control of the (R.I.S.K.) car alarm immobilizer during normal legal
use of a vehicle, and because of this the added use of a (R.I.S.K.)
immobilizer pin number known only to the owner has been included in the
system, this allows the owner to release control of the motor vehicle to the
police authorities at his/her own discretion.
FINANCIAL SAVINGS
The use of a (R.I.S.K.) car alarm immobilizer or similar car security system would greatly increase
safety for the police and other road users, with obvious savings to
insurance companies as it minimizes the risk of severe damage to the
vehicles involved. Insurance companies could offer discounts to owners who have the (R.I.S.K) devices fitted as
they did when the normal immobilizer were first fitted to motor vehicles in theF
past, and this would help to offset the initial cost of the (R.I.S.K.)
immobilizer which is expected to be installed for less than $180.oo per
motor vehicle.
REQUIREMENTS for effective CONTROL of the R.I.S.K system
1: A national operating frequency allocated only for (R.I.S.K.) car
alarm immobilizer devices.
2: A national operating coding system allowing all (R.I.S.K.) car alarm immobilizer
motor vehicles to be controlled anywhere within Australia.
3:
Laws established, governing the control and use, of the (R.I.S.K.) immobilizer,
both by the police departments and general public.
Back to Immobilizer
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