Design and Development of Gesture Controlled MP3 Player Using ARM7 and Image Processing Technique

Transcription

1 1, January Design and Development of Gesture Controlled MP3 Player Using ARM7 and Image Processing Technique Kurma Soujanya Mr. M. Firdouse Ali Khan M.Tech(Embedded systems) Senior Assistant Professor Aurora s Technological and Research Institute Aurora s Technological and Research Institute Parvathapur,Uppal Parvathapur,Uppal Hyderabad, Hyderabad, Andhrapradesh, Andhrapradesh, soujanyakurma@gmail.com mfirdousealikhan@gmail.com Abstract- The aim of the project we are controlling the MP3 Player by Gesture. A Gesture image is taken from Camera and image will be processing in MATLAB and using the human hand movement the image is recognized and depending on this left or right or up or down of these signals send to controller. The MP3 player is interfaced to the ARM7 controller using some relay drivers which can drive the MP3 player to play, pause, forward, rewind sound up and down etc operations. Keywords-MP3; gestures control; matching algorithm; ARM7controller 1. INTRODUCTION Nowadays, most MP3 players are controlled by buttons on their bodies. While in this project, we do a new design, through embedding a three-axis accelerometer in the MP3 device, which can make MP3 player controlled by certain gestures performed in the air, instead of traditional way of control mentioned above. The six signals are processing in ARM; those signals are (play, stop, forward, rewind, volume up and down). The MP3 player is interfaced to the relay drives and ARM controller. Relays are acts as a switching button, like open and closes of electric circuit. Totally five relays are performed, first input is given to pc the relay button will be on and the MP3 player will be play to the first signal. The MP3 player will be play some audio signals only and the functions are observed on LCD. Power supply is needed from +5v to +12v to the ARM controller using transformer, bridge rectifier, filters and regulators. 2. WORKING MECHANISM In this concept the mp3 player controlled using by gesture. An input image is taken from camera and image will be processing in mat lab (pc).in mat lab comparing the two images of both input and database images. After compare the images the result given to the pc (mat lab). Rs232 it communicates the signals from mat lab to ARM7 controller. Fig1: block diagram chiefeditor@ijrcct.org Page 32

2 1, January DESIGN OF GESTURE CONTROLLER Fig 2: design of gesture controller The MP3 (music) player controlled by using gesture. An input image is taken from camera and image will be processing in mat lab. In mat lab compare the both input and database images, after comparing the images result will be given to ARM7 controller with the help of RS232 cable. The MP3 player is interfaced to the ARM controller and relay drives, the relays are acts as a electric switching button, and a input first image is recognized with ARM7 controller, the relay will be automatically on and MP3 player is play. The MP3 player played some audio signals only, and the functions are display to the LCD. 3(a) EDGE DETECTION ALGORITHM: the camera is available then using the video input function, we capture a video and a snap of it is taken as input to our system. Once we are ready with the input image, we need this to processes in two steps: To eliminate the color deviation for input and data base image To match them based on edge features For color we calculate the histograms for both the input and the database images, and these histograms are interpolated on a 3d space with sum threshold parameters, and then the interpolated values of these will be compared in order to get the sorted output from the database wherein this output is taken as reference in the next step. Fig3: edge detection algorithm The input to the system can be given from camera or from pc, this first checks for the availability of camera using the try function. If In the next step we go for edge extraction for both input and database images, and this is done first by converting the image into grayscale, and then binary zing it using the gray threshold value being calculated. Now these edge extracted images will be compared and the comparison values are noted. Now in order to get the required form of output to give it to embedded system we go for conditional loop where in we check with the comparison value at each step and then determine the output condition based on the very least value... So this completes the flow of working. This process will be going on for infinite loop until user wants to exit from it. 3(b) IMAGE PROCESING: chiefeditor@ijrcct.org Page 33

3 A gesture input images are taken from camera and images will be processing in mat lab. In mat lab comparing the both input and data base images and It perform the totally six images, they are play, stop, forward, rewind, volume up & down. Play & stop forward rewind Fig5:ARM7 (LPC2148) Volume up volume down Fig4: gesture input images 4. WORKING PROCESS IN EMBEDDED SYSTEM: Embedded system is a combination of software and hardware components. Hardware Requirements: A. ARM7(LPC 2148): ARM (LPC2148) is a 32-bit, and it s (Reduced Instruction Set Computer) architecture. On-chip Static RAM (SRAM) may be used for code and/or data storage. SRAM may be accessed as 8-bits, 16-bits, and 32-bits. ARM7 Local Bus for interface to on-chip memory controllers, the AMBA Advanced High performance Bus (AHB) for interface to the interrupt controller, and APB for connection to the on-chip peripheral functions. The LPC2148 incorporate a 32 kb to 512 kb Flash memory system, respectively. This memory may be used for both code and data storage. General purpose I/O registers are relocated the ARM local bus, and this pins are applied to the Driving LEDs, or other indicators and Controlling off-chip devices. UART contains data transfer between the Receiver and Transmitter. ARM7 NSK electronics. Speed 60MHZ. ARM7 64 I/O Pins. B. LCD : Fig6: liquid crystal display LCD consisting of totally 16 pins. First 8-pins are data pins (D0-D7), it is used for storing data which is to be displayed on LCD. Remaining pins are connected to the registers (En1, En2, R/W, VCC, VSS, RS and VEE) to the ARM controller. chiefeditor@ijrcct.org Page 34

4 (a) 16*2 alphanumeric position of LCD. (b) Power supply is needed from 5v. C. RELAYS: Fig9: power supply To operate this hardware circuit 12V dc. Power supply is needed in order to get the 12v dc from 220v ac we connect transformer, bridge rectifier, filter, regulator to arm controller. Fig7: relay driver F. RS232 CABLE: Relay is an electrical switch that opens and closes under the control of another electrical circuit. Input given from 12v, and output 220v. Fig10:RS232 cable ON - common + normally opened. OFF - common + normally closed. Max232 (voltage level shifter) is used to change the voltage level of pc TTL (TRANSISTOR TO TRANSISTOR LOGIC) to CMOS (CIRCUIT METAL OXIDE SEMICONDUCTOR) of ARM processor. D. MP3 PLAYER: Serial communication with equalization speed of 9600 baud rate is used. Fig8:mp3 player It is interfaced to the relay drivers and ARM controller. Performed the six input signals are like stop or play, forward, rewind, volume up and down to the mp3 player. The total performance display on the LCD. E. POWER SUPPLY: SOFTWARE REQUIERMENTS: A. MAT LAB: Mat lab is a soft ware which is installed in computer. in that software we built programming with all instructions with the base of programming only the total kit will be work. In Mat lab we are using image processing toolbar for detecting the gesture image using edge detection algorithm. chiefeditor@ijrcct.org Page 35

5 Fig11: MAT LAB screen shot Pc requirements: Mat lab 7.5 version will be performed. Hard disk 5 GB free space RAM 2GB Processor 32bit Fig13: screen shot of flash magic B. KEIL SOFTWARE: It is used for code compiling return and for creating hex file for ARM processor. Run the programming used to keil software Fig12: screen shot of keil Fig- flow chart or guesture control. C. FLASH MAGIC: It is used for burning the hex file into the controller. 5. CONCLUSION: In mat lab the signals taken from the PC (image processing) and using edge detection algorithm will be processed by the controller with the help of serial communication (RS232 cable). chiefeditor@ijrcct.org Page 36

6 In embedded kit using some relay drives control the mp3 player to play or stop, forward and backward volume up and down functions are controlled by gesture 6. REFERENCE: [1] R.C. Gonzalez, R.E. Woods, Digital Image Processing, Addison Wesley Publishing Company, Inc New York, [2] P. Qiu, Image Processing and Jump Regression Analysis, Wiley, New York, [3] J. Besag, Spatial interaction and the statistical analysis of lattice systems (with discussions ), Journal of the Royal Statistical Society (Series B) 36 (1974) [4] J. Be sag, on the statistical analysis of dirty pictures (with discussion), Journal of the Royal Statistical Society (Series B) 48 (1986) [5] J.A. Fessler, H. Erdogan, W.B. Wu, Exact distribution of edge- preserving MAP estimators for linear signal models with Gaussian measurement noise, IEEE Transactions on Image Processing 9 (2000) [6] Wen Zheng He Jia-yang Zhao Zhi=peng. AVR Singlechip Developing from Primary to Master [M].Peking electricity Publishing company, 2009(Chinese). [7] Lin Rui, Han Yong-quan.Hi-Q Programming Guide C++/C Language[M].Peking china electronic industry Publishing company 2007(Chinese). [8] Liu Lan-xiang Zhang Qiu-sheng. ATmega128 Singlechip Applying and Developing Examples [M].Peking mechanical industry Publishing company, 2006 (Chinese). chiefeditor@ijrcct.org Page 37