Page 72 - B.E CSE Curriculum and Syllabus R2017 - REC

Department of CSE, REC

placed on bus stops. This system does not need any bus stop name or route names to be stored in the bus
system. Each bus stop system has a code and our receiver circuitry can be fed with as well as edited of
existing bus stop names using a usb keyboard interface. Each bus stop system constantly transmits a unique
bus stop code. When the bus comes in range of a bus stop the code is picked up bu bus system and it
automatically feeds it to controller. The controller process this information to find out the name of
corresponding bus stop and immediately converts it to voice command. It now speaks the bus stop name using
a speaker to provide an automated raspberry pi based speaking bus stop indicators.

14. Raspberry Pi Based Reader for Blind
This project has been built around Raspberry Pi processor board. It is controlling the peripherals like Camera,
speaker and LCD which act as an interface between the system and the user. Optical Character Recognition or
OCR is implemented in this project to recognize characters which are then read out by the system through a
speaker. As shown in the project setup, the camera is mounted on a stand in such a position that if a paper is
placed in between the area marked by angular braces, it captures a full view of the paper into the system. Also,
when the camera takes the snapshot of the paper, it is ensured that there is a good lighting condition. The
content on the paper should be written in English (preferably Times New Roman) and be of good font size
(preferably 24 or more as per MS Word). When all these conditions are met the system takes the photo,
processes it and if it recognizes the content written on the paper it will announce on the speaker that the
content on the paper has been successfully processed. After this it speaks out the content that was converted in
to text format in the system from processing the image of the paper. In this way Raspberry Pi Based Reader
for Blind helps a blind person to read a paper without the help of any human reader or without the help of
tactile writing system.

15. Ultrasonic Music Beats Player Using Raspberry Pi
Ever imagined playing hip hop beats as desired at just the motion of your hands in air. Well here we propose a
raspberry pi based project that does just this. Our proposed system uses raspberry pi along with ultrasonic
sensors in order to check user hand position and plays beats accordingly to allow making hip hop beats as
desired. The proposed system uses ultrasonic sensors attached to raspberry pi in order to detect user hand
positions. Based on the input received the user may change different beats or add effects in between. We use
multiple ultrasonic sensors to allow for a variety of sound effects. Our system uses a speaker in order to play
those beats. We here use raspberry pi board in order to get fast processing and no break constant music beats
for good sound effects. Thus our proposed system puts forward an innovative beat maker and mixer system.

16. Raspberry Pi Based Automatic Selfie Booth
Here we propose a fully automated selfie booth system that does not need any manual button click to take and
save selfies. Our system consists of raspberry pi based system with a camera as well as speaker and led’s
interfaced through a PCB board to deliver this functionality. This is an innovative system that does not need
users to click selfies, it automatically starts taking selfies and saves it in their pen drive using face recognition
technique. We here use raspberry pi for fast processing in order to detect if any human faces are detected near
the selfie booth, it then instructs the camera to start taking selfies at 2 seconds intervals until user is still
standing in front of it. It allows user to attach a pen drive before starting image capture and saves all selfies in
it. It is a very entertaining system for parties, events and other occasions to capture automatic selfies of
visitors, guests and keep gathering memories of the event. We also use speaker sound effects along with LEDs
to indicate images capture and successful saving.

17. Motion Based Time Lapse Camera with Optimized Storage
Time lapse footages are made up of images of the same scene captured over a brief period of time. This
footage usually consists of cities, landscapes, sky views, constructions, city traffic, sea shores, ocean
photography etc. These sceneries usually change over a brief period of time, so capturing images at timer
short intervals without any considerable scenery change leads to wastage of storage space. So here we propose
a smartly designed system that uses raspberry pi in order to detect motion and capture images only when a
significant motion or scenery change is detected compared to the last image captured. This allows for
optimized storage space and getting desired footage in low storage space. The system uses a pen drive to store
the captured images which can be used to create the time lapse in a video maker or slideshow in user PC.

Curriculum and Syllabus | B.E. Computer Science and Engineering | R2017 Page 72