PROJECT PHASE 2
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This document describes a direction controlled wheelchair for physically disabled people using voice control and an RF module. The wheelchair can be controlled through voice commands to a voice recognition module or through an RF remote. It also monitors the user's temperature and detects obstacles using sensors. The system uses a PIC microcontroller, voice recognition module, RF transmitter/receiver, temperature sensor, IR obstacle sensor, motor driver, and LCD display. The goal is to allow disabled individuals to move independently through voice or remote control while also monitoring their health conditions.
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ANDROID BASED AUTOMATED SMART WHEELCHAIR
This document describes an android-based automated smart wheelchair that can be controlled via smartphone. Key points:
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PROJECT PHASE 2
- 1. DIRECTION CONTROLLED WHEEL CHAIR FOR PHYSICALLYDIRECTION CONTROLLED WHEEL CHAIR FOR PHYSICALLY DISABLED BASED ON VOICE AND RF MODULEDISABLED BASED ON VOICE AND RF MODULE PROJECT SUPERVISOR Mr.S.Sundar (Assistant Professor) PRESENTED BY J.JEGADEESH(121EE505) S.JAGADEESH(111EE133) V.SURENDAR(121EE524)
- 2. Project Phase -2 ABSTRACT This Project describes an intelligent motorized wheel chair for physically disabled person using voice control and by RF module. It enables a disabled person to move around independently using a voice recognition application which is interfaced with motors through microcontroller.
- 3. Project Phase -2 INTRODUCTION This work includes the wheelchair that can be controlled by using voice and switch and it monitors the body temperature of the disabled person.
- 4. Project Phase -2 PROBLEM IDENTIFICATION The present world the medical field gives very much importance in taking care of the patients, and the patient/ handicapped one are like to live individually without the help of any others .so, this proposed product will be very effective for them.
- 5. Project Phase -2 OBJECTIVE To design a working model that could help the physically disabled persons and to make a system that monitors the health condition of patient.
- 6. Project Phase -2 BLOCK DIAGRAM OF PROPOSED WORK MICROPHONE VOICE RECOGNITION KIT RF MODULE PIC CONTROLLER IR OBSTACLE SENSOR POWER SUPPLY RELAY 1 RELAY 2 TEMP SENSOR MOTOR 1 MOTOR 2 LCD DISPALY
- 7. DESIGN AND DEVELOPMENT The wheel chair is controlled by voice recognition module and the vehicle is also controlled from a short distance through RF module. Project Phase -2
- 8. Project Phase -2 CIRCUIT DIAGRAM
- 9. Project Phase -2 HARDWARE COMPONENTS PIC 16F877A VOICE RECOGNITION HM2007 KIT POWER SUPPLY RF MODULE IR OBSTACLE SENSOR LCD DISPLAY TEMPERATURE SENSOR RELAY DC GEAR MOTOR
- 10. MICROCONTROLLER PIC 16F877A Project Phase -2
- 11. FEATURES It is an 8bit microcontroller. 35 input/output pins 368 bytes RAM memory A/D converter Project Phase -2
- 12. HM2007-VOICE RECOGNITION LSI KIT Project Phase -2
- 13. MICROPHONE The human ear has an auditory range from 10 to 15,000 Hz. Microphones are transducers which detect sound signals and produce an electrical signal. Microphone takes the analog voice commands and sends it to voice recognition chip HM 2007. Project Phase -2
- 14. FEATURES The HM2007 is a CMOS voice recognition LSI circuit. The chip contains voice analysis, regulation, and system control functions. The main features are speech recognition circuit, maximum 40 word recognition, microphone support, response time is less than 300 milliseconds. Project Phase -2
- 15. User programmable, Up to 20 word vocabulary of duration two second,non-volatile memory back up with 3V battery onboard, which keep the speech recognition data in memory even after power off. Project Phase -2
- 16. RF MODULE Project Phase -2
- 18. RF TRANSMITTER Project Phase -2
- 19. RF RECEIVER Project Phase -2
- 21. SENSORS –Temperature sensor Project Phase -2
- 23. Detecting Obstacle with IR (Infrared) Sensor Project Phase -2
- 24. TEMPERATURE SENSOR AND IR SENSOR Project Phase -2
- 25. RELAY DRIVER CIRCUIT Project Phase -2
- 26. OVERALL PROJECT MODEL Project Phase -2
- 27. Project Phase -2 HARDWARE IMPLEMENTATION
- 28. Project Phase -2 CONCLUSION The direction of the wheelchair can be selected using the specified voice commands or switch. This project has many advantages like safety, comfort, energy saving, etc. Thus a trained voice is only needed to ride the wheelchair.
- 29. FURTHER DEVELOPMENT Further the project can be developed by using a heart beat analyzer sensor to sense the heart beat of the patient. When heart beat is crossing the threshold value SMS is sent to the concern person/doctor via GSM. The short range controlling of wheel chair is also possible via zigbee. We can implement our project on PCB and output can be obtained. Project Phase -2
- 30. Project Phase -2 REFERENCES [1]. A. AnandKumar “BasicFundamentals of Digital Circuits” Second Ed. PHI Learning. [2]. Neamen“Electronic Circuits – Analysis & Design” McGraw Hill. [3]. Millman J. &Taub H., “Pulse, Digital & Switching Waveforms” Tata McGraw Hill [4]. Simon Haykin, “Communication Systems”Wiley India, New Delhi, 4Ed. 2008