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SmartFridgeRPI

Application wich gets installed on the Raspberry PI of the Smartfridge.

The functionalities are:

  • keeps track of sensor changes (e.g. door was opened)
  • takes a picture of the inside of the fridge when the door was opened
  • sends the picture to the webserver
  • listens to the barcode scanner
  • gets the product information of a barcode from the internet
  • sends the gathered product information via push notification to the Andorid application

Installation

Java has to be installed:

Java -version
apt-get install oracle-java7-jdk

In order to ensure the access of the server application to the GPIO pins, WiringPI must be installed. You must first install Git:

sudo apt-get install git-core

Now the git repository of WiringPi can be cloned:

git clone git://git.drogon.net/wiringPi

Afterwards, WiringPI has to be installed, change it with the help of the terminal into the folder into which WiringPi was cloned and start the installation:

cd wiringPi ./build

To ensure that the connected camera is detected, the fswebcam software package must be installed:

sudo apt-get install fswebcam

To create the Database, MySql must be installed:

sudo apt-get install mysql-server

Before the database image can be imported, a database with the name fridgedb_rpi must be created and selected:

mysql -u root -p

Enter password:

mysql> CREATE DATABASE fridgedb_rpi mysql> USE fridgedb_rpi

Now the database image can be imported:

$ mysql -u root -p fridgedb_rpi < fridgedb_rpi.sql

In order for the server application to run automatically after a restart of the Raspberry, a file with the name startup.desktop must be created in the / etc / xdg / autostart directory.

Make sure the FridgeServer.jar is on the desktop, or adjust the path below. Enter the following code lines into the file:

[Desktop Entry] Type=Application Name=ServerApplication Exec = gksu „sudo java – jar /home/pi/Desktop/FridgeServer.jar“

If gksu has never been executed on the RPI, call the following command once in the terminal:

gksu „sudo java – jar /home/pi/Desktop/FridgeServer.jar“

Gksu will now ask you for root access, please confirm this.

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