Specifications

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System Mode 01 – If the System Mode is set to 01 then software will
process the data to unlock the lock to start the car.
System mode 00 – If the System Mode is set to 00 then software will keep
the lock on the car and then driver will not be able to start the car.
CBU Idle State – When the System mode is enabled, then the idle state will be
enabled. The random sample module will be set utilized. As long as the key is in
the ignition and power is be supplied to the control box unit, the software will
needed to handle take random samples to make sure the person doesn’t
consume any more alcohol. The random sample module will handle this process.
Figure 2.6.1.3: Diagram showing the states of the control box unit software side.
2.7 Interlock Device
A breath alcohol ignition interlock device is essentially a breathalyzer, coupled
with an automobile control unit. Due to the increasing prevalence of laws across
the United States requiring the installation of these devices in the automobiles of
repeat DUI offenders, ignition interlock systems are manufactured by a variety of
different companies. While each individually produced interlock system sports its
own appearance and feature set, they all tend to conform to a standard set of
requirements, as established by the states and municipalities whose court orders
mandate their installation.
Before a subject motor vehicle can be started, the operator must deliver a deep
breath sample to the hand held alcohol detection unit. If the operator’s detected