1. GESTURE CONTROLLED CAR
DRIVING FOR PHYSICALLY
HANDICAPPED
A PRESENTATION BY:-
• A.SARATH CHANDRA
• K.ABHINAV KUMAR
• O.SAI KIRAN
• P.SRIKANTH
Under The Guidance of
Y.V.Vijay Kumar Garu
3. OBJECTIVE
• Currently around 10 per cent of the total world's
population ,i.e. , Around 650 million live with a disability.
• 85% of people with disability are found in developing
countries.
• About 4% of Indian population are affected.
4. EXISTING TECHNOLOGY
The present technologies make use of geared
motors to move in various directions.
These systems are steered using joysticks and by
hand some times.
These systems are equipped with normal braking
systems.
6. MICRO-ELECTRO MECHANICAL SYSTEMS
MEMS is a gesture based technology
It is an integration of mechanical and electronic circuits, typically
on a semiconductor chip through micro fabrication technology.
“lab on chip” technology.
Ranges : 1 - 100 microns
9. GESTURE MEMS ACCELEROMETER SENSOR
1st generation 3axis sensor.
MM7660L
Used in moving, slope detection.
User could get acceleration value of x, y, and z axis.
Output sensitivity could be select by simply set voltage level on few
pins.
10. MICRO CONTROLLER ATmega 328
• A microcontroller is a small computer(SoC) on a single integrated circuit containing
a processor core, memory and programmable input/output peripherals.
• Microcontrollers are used in automatically controlled products and devices.
• This device is manufactured using the Atmel high density non-volatile memory
technology.
• The Atmel ATmega328 is a powerful microcontroller that provides a highly flexible
and cost effective solution to many embedded control applications.
11. ARCHITECTURAL FEATURES OF
ATmega 328
• Advanced RISC Architecture.
• 32KB of Flash, 1024Bytes of EEPROM , 2Kbytes of SRAM.
• Programming LOCK for software security.
• Two 8-bit timers, One 16-bit timer, one real time counter with separate
oscillator.
• Programmable Watchdog Timer with separate Oscillator.
• Four PWM channel.
• Eight 10-bit ADC channels.
12. ARCHITECTURAL FEATURES OF
ATmega 328
• Programmable USART, TWI and Master/Slave SPI.
• External and Internal Interrupt Sources.
• Six sleep Modes for Power saving.
• Power-on RESET and Programmable Brown-out Detection.
14. PIN DESCRIPTION OF ATmega 328
• VCC: Pin 10 provides supply voltage to the chip. The voltage is +5v.
• GND: Pin 31 is the ground.
• Port A: Port A serves as the analog inputs to the A/D converter and as an 8-bit bi-
directional I/O port.
• Port B,C,D: Port B,C,D are an 8-bit bi-directional I/O port with internal pull-up
resistors.
• RESET: Reset Input is a low level on this pin which generate a reset, even if the
clock is not running.
15. PIN DESCRIPTION OF ATmega 328
• XTAL 1:Input to the inverting Oscillator amplifier and input to the
internal clock operating circuit.
• XTAL 2:Output from the inverting Oscillator amplifier.
• AVCC:AVCC is the supply voltage pin for Port A and the A/D
Converter.
• AREF:AREF is the analog reference pin for the A/D Converter.
16. ZIGBEE PROTOCOL
• ZigBee is a specification for a suite of high-level communication
protocols used to create personal area networks built from small,
low-power digital radios.
• ZigBee is typically used in low data rate applications that require long
battery life and secure networking.
• The transmission distance of zigbee covers about 10-100 meters.
• Applications include wireless light switches, home appliances, traffic
management systems, health, telecom and other consumer and
industrial equipment that requires short-range low-rate wireless data
transfer.
19. ZIGBEE ARCHITECTURE OVERVIEW
• The architecture goes on to complete the standard by adding
four main components:
1. Network layer
2. Application layer
3. ZigBee device objects (ZDOs)
20. REGULTED POWER SUPPLY
• It is used to convert high voltage AC mains to a suitable low supply voltage
for electronic circuits.
• It consists of the following parts:
12 v battery.
Bridge rectifier
Capacitive filter
Voltage regulator
23. CONCLUSION
• The project “GESTURE CONTROLLED CAR DRIVING FOR
PHYSICALLY HANDICAPPED” has been designed and implemented
with ATmega 328 MCU in embedded system domain.
• The direction of X-axis, Y-axis, and Z-axis has been found by acceleration
sensor and according to that the car is moved with the help of dc motor in the
desired direction.
24. FUTURE SCOPE
• For attending calls while driving using gestures
• Wheel chair applications
