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SMART DOORBELL
A SM A R T D
E V I CE T
O MA K E Y
O U R DO O R S
M A R T
Master of Science in Computer Engineering
Class of Pervasive System by:Ioannis Chatzigiannakis
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Mattia Brunettihttps
://it.linkedin.com/in/mattiabrunetti
Marco Casinihttps://
it.linkedin.com/in/marcocasini2
ABOUT US
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https://github.com/mattiab31/SmartDoorBell
THE PROBLEM
To control the door when youare not at home.
To control the hall of an officewithout need to be there.
To control automatic gatewithout to be in the range.
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There are many situation where is hard to control your «door»!
OUR SOLUTIONWe developed a «SmartDoorBell», a
device that is always connected to internet, to have a remote control of your door, simply using your smartphone!
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There are some similar solutions but:1) Really expensive – more than 200 $2) Need a special app to work 3) Are not flexible (e.g. you can’t turn on
lights)
POSSIBLE SCENARIOSThe purpose of this device is to help
people to have easly access at their house and to have a remote control of a door.
The focus of this project is about the domestic use of this product.
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POSSIBLE SCENARIOSWe found three main situations:
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Owner: with beacon
Friends: with code
Strangers: ring the bell
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POSSIBLE SCENARIOS 1/3
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Owner: with beacon
Owner of the house has a beacon device that works like a real key. When he comes back home the «SmartDoorBell» recognise him and unlock the door.
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POSSIBLE SCENARIOS 2/3
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Friends: with code
Friends or everyone that would enter in the house, and know the security code, can do that simply typing the code on the numeric keyboard on the door.
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POSSIBLE SCENARIOS 3/3
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Strangers: ring the bell
Every time that someone ring the bell the owner receives a Telegram message with a photo and he can decide to take some decisions using Telegram (e.g. take a photo, send/receive vocal messages…)
THE HARDWARE
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THE SOFTWARE
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Script Button
Script OpenDoorScript Secure Code
Our BOT Telegram runs on Raspberry Pi
Script Multi-Media
BOT COMMANDS/roll reply with a random integer, used for test/time reply with a current time, used for test/photo take a photo and send it to the owner /video take a video and send it to the owner /sound play an audio message from the Raspberry speaker/open unlock the door/openL unlock the door and turn on the light for 10 seconds/light turn on the light for 10 seconds/reboot reboot the Raspberry Pi/shutdown shutdown the Raspberry Pi/help send a document with the list of commands
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PROJECT PROGRESS REPORT
SET UP HARDWA
RE
SET UP SOFTWA
RE
IMPLEMENT
STRANGER
SCENARIO
FAIL TO IMPLEMEN
T API TELEGRAM
ON ANDROID
IMPLEMENT
FRIENDS SCENARI
O
IMPLEMENT
OWNER SCENARI
O
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WHAT’S MISSING – THE OWNER
For the owner side we want that when he comes back home the door will automatically open.
We tried to send an automatic message to our bot with the Telegram API but it’s not so easy to use.
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We decided to change the implementation of this part.
WHAT'S WRONG WITH TELEGRAM?
https://yalantis.com/blog/whats-wrong-telegram-open-api/18/05/20
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1. Telegram’s source code is not an SDK or a library.
2. Strange pieces of code, like setTextColor(0xff757575).3. Magic numbers for int values like “42540” which are passed as flag values. 4. “If-Else” statements that are too long and too, and really long methods.(i.e. 300 lines of code in one method).5. Spaghetti code and copy-paste.6. Only three Activities in such a huge project. 7. Many classes *activity, which extendBaseFragment, which is not actually a Fragment.
HOW TO SOLVE - CASE 1We developed a simple application for Android
that allow the owner to open the door, with just few click, when he enters in the range of the beacon.
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We would use an App like a real key!
PROSEasy to implement
Don’t need additional hardware
CONSIt’s not completly automated
Need to have a special app
HOW TO SOLVE - CASE 2We use Raspberry Pi as a beacon reciever, and
the beacon of the owner as a trasmitter. When the Raspberry catches the signal, it performs an action.
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We would use a Beacon like a real key!
PROSCompletly automated
Don’t need special app
CONSHard to implement
You must have a beacon to enter
SOME PIC
TURE
W O R K I NP R O G R E S S
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FIRST PROTOTYPE
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SECOND PROTOTYPE
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THIRD PROTOTYPE
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LAST PROTOTYPE
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THE «FINAL» PRODUCT
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LIVE
DEMOSTRATI
ON
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THANKS!
QUESTIONS?SUGGESTION
S?IDEAS?
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