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3 Hardware Trojans in Electronic Devices
SAFE-BOY module
Using the plugin SAFE-BOY, you can turn your mobile phone into a tracking
device for your kid.
In particular, highly sensitive electret microphone will react to a child’s cry. Before
sending the alarm signal, the device can play any melody from the memory of the
mobile phone or even compose it itself like in the so-called musical clock. If your
child keeps crying after the melody has been played twice, the alarm signal will be
generated: you will receive the corresponding SMS message or an automatic phone
call.
First of all, processor of the plugin verifies authenticity of the received acoustic
signals. It means that it studies their frequency spectrum and repetition frequency
before going into the active state and playing one of the 49 possible melodies. Loudness and time of melody replays can be programmed using SMS messages (within
3–30 s).
Moreover, the SAFE-BOY plugin allows performing acoustic control of the room
both in mobile and in stationary modes. You can call a statically positioned mobile
phone and set it in the tapping (listening) mode.
SAFE-BOY also employs the position finding method, which makes it perfect for
organization of personal protection.
SAFE-BAG module
SAFE-BAG plugin (Fig. 3.8) is a form of protection of any mobile objects (e.g.
vehicles).
If your vehicle starts moving without your consent, SAFE-BAG will immediately
inform you about that. It can also notify you about failures of continuously operated devices and equipment. Moreover, SAFE-BAG plugin implements the position
finding function that can be widely applied. However, the main task of the SAFE-BAG
plugin is monitoring of the object’s location. The sensor here is a magnetoresistive
element that detects changes in the geomagnetic field. The sensitivity of the sensor
is so high that it can detect position changes within 6 m in the active mode. The
alarm is also generated if a fourfold change in direction of at least one degree occurs
within 16 s. Each undesirable movement of the controlled object is reliably identified. Amplification and preparation of the signals read from the sensor is performed
by standard quadruple operational amplifier LM 324.
SAFE-MAN module
SAFE-MAN plugins monitor all objects using movement and acoustic sensors.
For example, this plugin can control and prevent unauthorized access to flats,
residential houses, vehicles, hotel rooms, store premises, offices, warehouses, etc.
SAFE-MAN is simply connected to the mobile phone and placed in the controlled
area. In case of your prolonged absence or for the purpose of long-term control, it is
necessary to connect a phone charger to the integrated interface.
SAFE-MAN plugin offers various utilization options. For example, it can control
an object using a movement sensor and/or a microphone. You can silently call a
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