CASE STUDY OF DIGITAL CAMERAHARDWARE AND SOFT WAREARCHITECTURE

1. A Technical Paper Presentation
By
DEPARTMENT OF E.C.E
A1 GLOBAL INSTITUTE OF ENGINEERING & TECHNOLOGY
Markapur , Prakasam (dist).
J.SUDARSHANREDDY
IV E.C.E
1/25/2015J.SUDARSHANREDDY

2. 1/25/2015J.SUDARSHANREDDY

3.  INTRODUCTION
 REQUIREMENTS
 ARRANGEMENTS
 INTERNAL UNITS
 CLASS DIAGRAMS
 SOFTWARE ARCHITECTURE
 HARDWARE ARCHITECTURE
 CONCLUSION
1/25/2015J.SUDARSHANREDDY

4. 1/25/2015J.SUDARSHANREDDY

5.  Intensity and colour values for each picture in
horizontal and vertical rows of pixels.
 User control inputs.
 Output is encoded file for a picture.
 Permanent store of the picture at a file in a
flash memory sick.
 Screen display of picture from the file after
decoding
1/25/2015J.SUDARSHANREDDY

6. 1/25/2015J.SUDARSHANREDDY

7.  Keys on the camera.
 Shutter, lens and charge coupled device (CCD)
array sensors
 Good resolution photo quality LCD display
unit
 Displays text such as image-title, shooting data
and time and serial number. It displays
messages. It displays the GUI menu when user
interacts with the camera.
 Self-timer lamp for flash.
1/25/2015J.SUDARSHANREDDY

8.  Internal memory flash to store OS and
embedded software and limited number of
image files.
 Flash memory stick of 2 GB or more
for large storage.
 Universal Serial Bus (USB), Bluetooth and
serial COM port for connecting it to
computer, mobile and printer.
1/25/2015J.SUDARSHANREDDY

9. 1/25/2015J.SUDARSHANREDDY

10. 1/25/2015J.SUDARSHANREDDY

11. 1/25/2015J.SUDARSHANREDDY

12.  Microcontroller or ASIP (Application
Specific Instruction Set Processor).
 Multiple processors (CCDSP, DSP, Pixel
Processor and others).
 RAM for storing temporary variables and
stack.
 ROM for application codes and RTOS
codes for scheduling the tasks.
1/25/2015J.SUDARSHANREDDY

13.  SYSTEM LAYER
 APPLICATION LAYER
 FUNCTION LAYER
 PRESENTATION LAYER
 CONTROL LAYER
 BASE LAYER
1/25/2015J.SUDARSHANREDDY

14.  CCD signal processing
 JPEG coding
 JPEG decoding
 Pixel co-processing
 LCD and USB Port device drivers
 LCD, Bluetooth COM and USB Port device
drivers
 Light, flash and display device drivers
1/25/2015J.SUDARSHANREDDY

15.  System layer provides system services
 Example:
 Display the text with picture,flash start and
stop and services such as IPCs(Inter Process
Communication)
APPLICATION LAYER :
 Application layer is for system switches,
button and control tasks.
1/25/2015J.SUDARSHANREDDY

16.  Function layer is for appilcation layer tasks
functionality using Picture_FileCreation,
Picture_FileDisplay and Picture_FileTransfer.
PRESENTATION LAYER:
 Presentation layer is for providing
standard acess to an image file
1/25/2015J.SUDARSHANREDDY

17.  By using digital camera we can capture
images and videos.
 And this data can be transfered into a
computer by using various devices.
 We learnt the digital camera hardware and
soft ware architecture.
1/25/2015J.SUDARSHANREDDY

18. 1/25/2015J.SUDARSHANREDDY

19. 1/25/2015J.SUDARSHANREDDY