Transcript Senior_Design_2_PROP..

Senior Design 2
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Intelligent Wheelchair
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Group Members
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Jose Vivian
Oscar Garcia
Alan Mairena
Overview
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Introduction
Constraints
Assumptions and Limitations
Operating Environment
Needs and Feasibility Analysis
Standards Considerations
End of Product Description and Other Deliverables
Budget
Ethical Considerations
Conclusion
Introduction
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The intend of this project is to help
handicapped persons to have a better life
The intelligent wheelchair gives freedom in the
sense that enables patients to be less dependable
on others
Project Objectives
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To design an intelligent wheelchair system for
quadriplegic persons to improve their lifestyle
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Safe
Voice Commanded
Monitoring System
Communication System
Voice Commands
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Basic Commands: left, right, forward, backward,
stop
Avoids obstacles, downfalls and detects any
situation that may put the patient at risk
Monitoring System
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Patient will be monitor and advise if any
abnormal situation occurs
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Alarm sounds if patient pulse stops
If there is a malfunction
Communication System
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In case of accidents or emergencies it will
contact emergency services
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Dial Up
Prerecorded Message
Alarm goes off
Chair notifies user of any abnormality
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Unavoidable Obstacles
Recharge Battery
Safety
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Systems assure patient and his/her surroundings
safety
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Sensors to avoid obstacles or downfalls
Pulse monitoring allows patient and family to know
about any abnormality
Communication system and alarms guarantees help
when needed
Constraints
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The communication system can not interfere
with other communication devices.
The wheelchair has to be battery operated
All accessories (communication system, pulse
measurer, etc) must be integrated to the
wheelchair
The wheelchair has to be durable
The whole wheelchair project can not cost more
than $ 611 (materials)
Assumptions and Limitations
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Assumptions
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Mainly for a quadriplegic patient
The chair operates only on hard surfaces, such as: concrete, asphalt, tile,
wood
User dependant
User is able to talk clearly
Use under nice weather
Limitations
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Budget
90 % accuracy
Safety
Power Limitation
Reliable
Operating Environment
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Indoors
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House
Malls
Hospitals
Outdoors
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Parks
Streets
Needs Analysis
Feasibility Analysis
Attributes
Scale
Why?
Resource Feasible?
R1 Sufficient Skills
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R2 Sufficient Equipment 5
R3 Sufficient People
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Schedule Feasible?
S1: What are the chances 5
of meeting the intermediate
mile stone?
S2: What are the chances of
meeting the preliminary design
review requirements
Financially Feasible?
E1: What % of total
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required funds do we have
Technically Feasible?
L1: Are fundamentally new 1
inventions required?
L2: Has similar technology 3
been used before by anybody?
TOTAL
30
AVERAGE 3.75
Solution
Limited Knowledge of programming
Review programming books
May required additional equipment
not required
Team of three
not required
We have analyzed all possible
scenarios.
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It is accomplishable
not required
not required
Depends on the cost of the wheel chair. We would have to find
an inexpensive wheel chair
Most of the technology is available.
Doing research we found
technology available
Other products like voice-radio has been Included in the background
done
Complete Design
Intelligent Wheelchair
Voice Commands
Programable
User
Dependent
VR
Stamp
Communication
Capability
Monitoring the
user
Emergency
services
Sense
whether user
is seated
Notify user
Pulse
detection
Reassured
the user
Connect
with
emergency
service
If no pulse
detected
Standard Considerations
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ANSI/RESNA Wheelchair Standards Volume 1 and Volume 2
Voice integrated system has to comply with the section 3 of
volume 2, determination of efficiency of brakes
The new controllers added to it energy consumption must be
measured and analyzed to comply with section 4 of volume 2.
Another section that has to be satisfied is the determination of
speed according to section 6 of volume 2.
Section 14 and 21 are related; before it is being used by a person
all testing must be done according to these sections of Volume
2.
Wireless communication system must comply with Technical
Rules (Section 15.247)
End Product Description
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The wheel chairs responds to voice commands and its
surroundings
The user speaks words on a microphone that are recognized by
the voice recognition systems. Once recognized a command is
given to wheel chair to be perform
Communication and Monitoring System allows patient to
contact 911 and be alarmed of undesirable situations
There is a sensor on the chair that turns it on when a person is
seated
Three modes of operation: User, Programmer, and Trainer
Alarm will notify user when running out of power, and also
notify patient’s family if help is needed
Functions
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The wheel chair functions as it names implies
The chair will be voice commanded and will
have the option to switch to a joystick
An alarm is installed on the chair to notify user
of any abnormality
Communication and monitoring system will be
incorporated to call emergency services in case
the patients’ pulses stops or any accident occurs
Specifications
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The chair can be used by one user at a time
Once trained for a specific user it needs to be
trained again
Before the chair is given to the patient it needs
to be program to code predetermine functions
desired by the user and his/her family
Other Deliverables
A user manual will be included to educate the
user and his/her family on how to use the
wheelchair, explain its functions, and instruct on
how to care and maintain the chair.
Budget
Components
Javelin Stamp
Carrier Board
Ultrasonic Sensors
Wheel Chair Model
VR Stamp
VR Board
Miscellaneous
Labor
Qty.
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3
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1
400 hrs.
Price
$100.00
$30.00
$27.00
$50.00
$50.00
$100.00
$200.00
Extension
$100.00
$30.00
$81.00
$50.00
$50.00
$100.00
$200.00
Subtotal
$15.00/hr
$611.00
$6,000.00
Total
$6,611.00
ETHICAL CONSIDARATIONS
AND SOCIAL IMPACT
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Design affects the patient using the wheel chair, his/her relatives,
society, and their surroundings.
The systems to be incorporated to the wheel chair must be safe
and must disclose factors that may endanger any of the
mentioned
Wheelchair provides a better lifestyle for patients and his/her
relatives. It gives a quadriplegic patient the ability to move freely,
take different directions, and go to different places, indoors and
outdoors
Designers must assure that wheelchair will avoid obstacles,
downfalls, stairs or any type of obstruction on its path. The
battery life is also a concern
Sensors will be incorporated onto the chair to prevent any
accident or undesired situation
Conclusion
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This new intelligent wheelchair will benefit
many handicaps patients by providing them a
system that they can rely on to feel less
dependent on their love ones
This product is reliable and assures the customer
safety
It meets the standards required for wheelchairs,
and new incorporated technology assures a
positive impact on handicapped patients’ life
Questions?