CS 4710 - Fall 2012
Jeremy Bonnell - email@example.com
Tong Wu - firstname.lastname@example.org
University of Utah
The Car Jacker is a device that allows a person to control settings of their car with an
Android smartphone. Vehicle features controllable by the Car Jacker include the ignition, locks, and climate control settings. Whether one would like to remotely heat and defrost their car on an ice cold morning, or cool it down in the heat of the blistering sun, the Car
Jacker will get the job done.
I. Functional Description
The Car Jacker has 3 basic functions to control a vehicle via a wireless phone: remote start/stop of the vehicle, remote lock/unlock of the vehicle’s doors, and control of the vehicle’s heating/cooling system. The heating/cooling settings controllable by the Car
Jacker are the fan speed, temperature setting, vent position, rear defrost, and air conditioner (AC). In addition to the basic functions, the Car Jacker has a safety feature to prevent a user from interacting with the system while driving, as well as a theft deterrent feature to prevent an idle car from being stolen while the owner is away.
To use the Car Jacker, a software application must be installed on an Android smartphone and hardware must be installed in the vehicle. To ensure they are paired correctly, the software is defined to a particular hardware device. The user can then launch the Android interface, adjust the settings, and press the “Send” button. A text message is sent by the phone to a cellular shield. The cellular shield is a device that enables text messaging services within the vehicle. The cellular shield then transmits the message to an Arduino microcontroller. The Arduino microcontroller is a small hardware device that runs a software application that is waiting for messages from the phone. The cellular shield and Arduino will be covered in greater detail in later sections.
Once a valid
References: 1. Sparkfun. [Online] April 21, 2012. [Cited: April 21, 2012.] http://www.sparkfun.com/ 2 3. Vishay. [Online] April 21, 2012. [Cited: April 21, 2012.] . N-Channel MOSFET http://www.vishay.com/docs/67036/sq2310es.pdf 4. Analog Devices. [Online] May 1, 2012. [Cited: May 1, 2012.] .AD5206 Digital Pot.