voice control home automation systems

LATEST IEEE PROJECTS ABSTRACT-RFID PROJECTS ABSTRACT-BLIND PERSON USING RFID CARD READER

Assisting Blind person using RFID Card and Readers

       This Project comprises of a Hardware mechanical model which is controlled by the electronic circuits to assist a blind person. I.e., This mechanical model is attached with the walking stick of the blind person.  The model will move automatically. This model helps the blind person to reach the destination quickly. The model has a Master Control unit through which it can identify the path. When the source and destination is selected the unit will calculate the path using. The unit will then tell the user to move in which direction. The movement of the user in ensured using a RFID proximity cards and a reader. The reader will be placed on the unit and on encountering of cards (Cards placed at each point) will tell the user has to take right or left or straight through voice output.  An APR 9600 voice storage and retrival IC is used for this purpose.  

WALKING STICK -RFID PROJECTS BLIND NAVIGATION

The unit will give alarm signal when it finds a Obstacle. This project is divided into modules for better understanding of the circuit.

The modules included in this project are

                                                Pic Embedded Microcontroller PIC 16F877

                                                Battery for Power Supply

                                                RFID Card Reader with cards

APR 9600 Voice Recording and Playback IC

Software Driver in Hitech ‘C’ Language.

Pic Embedded Microcontroller (PIC 16F877):

            This is the heart of the device which is responsible for sensing the obstacles and producing voice Output.

RFID Card Reader with Cards

            A RFID Card reader is fixed on the unit.  Cards will be placed on the path at regular intervals.  When the unit encounters a card, it can sense the point at which the unit is present through the unique code present in the card.

APR 9600 Voice Recording and Play Back IC

            This IC is a Single Chip Voice Recording and Playback IC.  A Prerecorded Voice is Stored into the IC.  It can be played again by the controller by sending a control signal to the IC.

BLIND NAVIGATION SYSTEM USING GPS&GSM VOICE ALERT SYSTEMS

       Assisting Blind Persons using GPS and GSM

Blindness is the condition of lacking visual perception due to physiological or neurological factors.

Various scales have been developed to describe the extent of vision loss and define blindness. Total blindness is the complete lack of form and visual light perception and is clinically recorded as NLP, an abbreviation for "no light perception."^[1] Blindness is frequently used to describe severe visual impairment with residual vision. Those described as having only light perception have no more sight than the ability to tell light from dark and the general direction of a light source.

WALKING STICK FOR BLIND

Many people with serious visual impairments can travel independently, using a wide range of tools and techniques. Orientation and mobility specialists are professionals who are specifically trained to teach people with visual impairments how to travel safely, confidently, and independently in the home and the community. These professionals can also help blind people to practice travelling on specific routes which they may use often, such as the route from one's house to a convenience store. Becoming familiar with an environment or route can make it much easier for a blind person to navigate successfully.

WALKING STICK FOR BLIND WITH VOICE OUTPUT

Traditional Tools such as the white cane with a red tip - the international symbol of blindness - may also be used to improve mobility. A long cane is used to extend the user's range of touch sensation. It is usually swung in a low sweeping motion, across the intended path of travel, to detect obstacles. However, techniques for cane travel can vary depending on the user and/or the situation. Some visually impaired persons do not carry these kinds of canes, opting instead for the shorter, lighter identification (ID) cane. Still  

others require a support cane. The choice depends on the individual's vision, motivation, and other factors.

Proposed Idea:

Our idea is to assist blind people using GPS and GSM mobility aid. We can construct a embedded unit which can assist blind people by giving intimation to the family members about the persons location periodically. This can also be done incase of any obstacles detection.  

BLIND NAVIGATION USING PIR&ULTRASONIC

 

Operation:

          The user will carry a embedded unit which comprises of a obstacle and vibration sensor. When a obstacle is detected the microcontroller gets the present position using GPS and sends that information to a remote mobile phone as an SMS Message.. So that the family members can know the exact position of the blind person. The unit has an option to send this information periodically so that, the family members can track the blind person’s movement.

Power Supply

Provides +5VDC and +12VDC power supply for the IC’s and the sensors for its proper operation

Dspi30F4013 Microcontroller

Microchip's newest dsPIC® Digital Signal Controller (DSC) and PIC24 MCUs offer the performance speed of 40 million instructions per second (MIPS), selfprogramming capabilities via Flash memory and industrial and extended temperature ranges. This IC severs as a CPU for the whole system.

WALKING STICK FOR DIFFERRENT MODEL

Ultrasonic Sensor

          Obstacle sensor (ultrasonic Sensors) is used to detect any obstacles in the path converts that into electrical signal and it is connected to the dsPIC Microcontroller.

Vibration Sensor

Vibration sensor is used to detect any Vibrations and converts that into electrical signal and it is connected to the dsPIC Microcontroller.

GPS Receiver

ProGin SR-92 is a low-power, ultra-high performance, easy to use GPS smart antenna module based on SiRF’s third generation single chip.  Its low power consumption and high performance enables the adoption of handheld applications. The slim design allows SR-92 to be placed on top side of the housing to have best GPS signal reception. The 5-pin I/O interface is then connected to the main board with either connector or wire soldering.

GSM MODEM

          SIM900 is used as a GSM modem and is used to send SMS Messages to the remotely located Monitoring unit.

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R.ASHOK KUMAR
MAASTECH
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