WIRELESS INTERACTION BETWEEN THE HUMAN AND THE MACHINE USING MOUSE
WITH HAND GESTURE ACCLEROMETER
Dr.S.R.RUCKMANI, Lecturer
CIT Sandwich polytechnic College, Coimbatore-14 ,Tamilnadu, India
ABSTRACT
With the day to day advancements in technology, the interaction between the human and the digital world is diminishing. Lot of improvement has taken place in the mobile technology from button keypads to touch screens. However the current PCs still need a pad to operate its mouse and are wired most of the time. The idea is to develop a wireless mouse which works on the hand gestures of the user without the need of a pad making an effortless interaction between the human and the computer. The implementation is done using a sensor named accelerometer to sense the hand gestures. Accelerometer is a motion sensor which sense changes in motion in any of the three axes. In here the accelerometer will be at the users side, attached to the hand to sense the movement and gives the output to a micro-controller to process it. Necessary modifications are done by the microcontroller to these values and are transmitted through a RF module to the PC.
At the receiving end a mouse control program which contains functions to control the mouse reads these values and performs the necessary action.
Keywords -Human Computer Interaction; Gesture Recognition; Bluetooth;
Microcontrollers; Carpel Tunnel Syndrome 1.
INTRODUCTION
The topic of Gesture recognition is a wide branch in Human and Computer interaction technology which aims to implement the goal of decoding hand gestures made by humans while using the mouse by making use of certain specific mathematical expressions and algorithms. The gestures talked about in the project are originated from the body movement. As a matter of fact, they originate from gestures from the hand and the face. Present study and researches focus on this vertical of Human and Computer Interaction includes recognition of emotions which originate from face and other bodily movements such as hand gesture recognition from the hands of the user. This branch that is Gesture recognition is the way forward for machines to start and get to
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know more about the human body language and various gestures associated with it. Thus, bridging the gap between humans and machines as compared to the conventional devices. The science of Gesture Recognition helps the users to establish communication with the computer- based machine i.e. Human Machine Interface (HMI) and helps the machine and humans to interact spontaneously without the employment of mechanically operated devices. This most likely would make orthodox input devices which are wired communication based such as the mouse, keyboards and touch enabled screens most likely obsolete. The project is aimed at reducing the use of mouse to increase the overall efficiency reduce the time consumption between humans and machines and to reduce physical barrier of wired communication. This increases the overall efficiency of the interaction using Gesture Recognition Techniques. The device makes use of an Accelerometer to sense the hand gestures with help of At mega Microcontroller. The signals from the Microcontroller will be sent wirelessly to the PC with the help of Bluetooth module. The hand gestures made by humans like left click, right click, dragging the cursor via mouse etc. will be performed wirelessly with the help of this wearable device. The device after completion also reduces the PCB manufacturing less cumbersome and efficient.
2.
EXISTING SYSTEM:
As the method of existing wired mouse not adequately efficient in terms of mobility and independent of wire. So the users switch over to the concept of wireless mouse which has many unique features.
In this paper, we are scrutinizes the methodology of wireless mouse A wireless mouse is a computer mouse that needs no wires to send signals from the mouse to a computer.
Over time, different technologies have led to the emergence of different types of wireless mice on the market. The cordless mouse offers obvious advantages over its tethered brethren, such as being able to point and click on a computer screen from across the room and run on multiple surfaces.
3.
PROPOSED SYSTEM:
The proposed system architecture uses accelerometer as a sensor to detect the motion.
Accelerometer is interfaced to a microcontoller, Arduino in this case.
The microcontroller does the necessary processing on the sensor data and transmits it through a wireless transmitter module. The wireless receiver receives the data and feeds it to the computer through one of the interfaces.
The application running on the PC analyzes the received values and perform the necessary action on the mouse pointer.
4.
ADVANTAGES:
Cost efficient.
Less delay.
5. BLOCK DIAGRAM
6. HARDWARE REQUIREMENTS:
MICRO CONTROLLER
LCD
ACCELEROMETER
ADC
6.1 Microcontroller
A microcontroller (abbreviated MCU or µC) is a computer system on a chip that does a job. It contains an integrated processor, memory (a small amount of RAM, program memory, or both), and programmable input/output peripherals, which are used to interact with things connected to the chip.
MICRO CONTROLLER
UART
LCD ADC
ACCELEROMETER
ZIGBEE
PC UART
ZIGBEE
Figure 1 Microcontroller
6.2 LCD Display
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers.
Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in color or monochrome.
Figure 2 LCD Display
6.3 Accelerometer
An accelerometer is an electronic sensor that measures the acceleration forces acting on an object, in order to determine the object's position in space and monitor the object's movement
Figure 3 Accelerometer
6.4 ANALOG TO DIGITAL CONVETER
ADCs follow a sequence when converting analog signals to digital. They first sample the signal, then quantify it to determine the resolution of the signal, and finally set binary values and send it to the system to read the digital signal. Two important aspects of the ADC are its sampling rate and resolution.
Figure 4 ADC
6.5 SOFTWARE REQUIREMENTS:
EMBEDDED C
KEIL IDE
CONCLUSION
This work presents the Human Computer Interaction between as Wireless mouse and Computer and compared with similar devices based on this principle. From the use of Air mouse, it can be concluded that the working of air mouse is more efficient as compared to other counterparts as the special functions used increase its effectiveness in wireless communication. So, this Air Mouse is useful in today’s world where wireless communication has taken over all forms of communication and will be very rewarding for future high-speed Human-Computer Interaction.
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