Design and Implementation of Wireless Durable Medical

Design and Implementation of Wireless Durable Medical Equipment for
Continuous Health Monitoring of Patients during Natural Disaster
Yathamshetty Navya Sree
M.Tech (Embedded Systems), Vaagdevi Engineering
College, Bollikunta, Warangal.
ABSTRACT:
The patient monitoring systems is one of the major
improvements in the hospitality because of its
advanced technology, but during natural disaster or
in any un even conditions continuous monitoring of
patient is not possible. The current paper which is
developed will avoid all those problems which was
occurred previously .This project is designed to
measure heart beat (pulse count) and temperature of
the patient by using embedded technology. In this
project simultaneously we can measure and monitor
the patient’s condition. It is to operate and available
at an affordable cost.
This project describes the design of a simple, low-cost
controller based wireless Patient monitoring system.
Heart rate of the patient is measured from the thumb
finger using IRD (Infra Red Device sensors) and
temperature of the patient is measured using LM35
sensor.A panic switch is also interfaced to the
controller that is to send a signal by the patient if
anything is wrong or else if the patient needs some
attention then they can press the switch. Heart rate
values, temperature values and the signal through
the panic switch is sent the remote place using GSM
module interfaced to the controller. A GPS module is
also interfaced to get the location value of the patient.
The main purpose of the project is to work without
power supply .This project uses 12v/1.3APH
rechargeable battery.
Keywords: Durable medical equipment, Zigbee,
GSM, GPS, IRD
Rayabarapu Venkateswarlu
Assistant Professor, M.Tech (DSCE), Vaagdevi
College Of Engineering, Bollikunta, Warangal.
Introduction
The patient monitoring systems is one of the major
improvements in the hospitals because of its advanced
technology. This project is designed for convenience
of patient using embedded technology. In this project
simultaneous monitoring of patient’s condition is
being done. It is operated and available at an
affordable cost.
Existing method
In this method, Zigbee protocol technology usage is
done. By which patient’s condition is sent from
various transmitter sections to receiver section. i.e.,
The transmitter sections are arranged at each and every
patient. At the receiver PC need to be monitored
continuously by a doctor/staff in the hospital.
Block diagram
Draw backs
 Limit range
 Requires a computer system
 Low efficiency
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Proposed method:
This project describes the design of a simple, low-cost
controller based wireless Patient monitoring system.
Heart rate of the patient is measured from the thumb
finger using IRD (Infra Red Device sensors).
A panic switch is also interfaced to the controller that
is to send a signal by the patient if anything is wrong
or else if the patient needs some attention then they
can press the switch. Heart rate values and the signal
through the panic switch is sent the remote place using
GSM module interfaced to the controller. A GPS
module is also interfaced to get the location value of
the patient.
Block diagram
Modules used in this project
ARM7TDMI Processor Core
 Current low-end ARM core for applications
like digital mobile phones
 TDMI
o T: Thumb, 16-bit compressed
instruction set
o D: on-chip Debug support, enabling
the processor to halt in response to a
debug request
o

M: enhanced Multiplier, yield a full
64-bit result, high performance
o I: Embedded ICE hardware
Von Neumann architecture
GSM
GSM, which stands for Global System for Mobile
communications, reigns (important) as the world’s
most widely used cell phone technology. Cell phones
use a cell phone service carrier’s GSM network by
searching for cell phone towers in the nearby area.
Global system for mobile communication (GSM) is a
globally accepted standard for digital cellular
communication.
GSM is the name of a standardization group
established in 1982 to create a common European
mobile telephone standard that would formulate
specifications for a pan-European mobile cellular radio
system operating at 900 MHz It is estimated that many
countries outside of Europe will join the GSM
partnership.
Global Positioning System
The Global Positioning System (GPS) is a U.S.
space-based global navigation satellite system. It
provides reliable positioning, navigation, and timing
services to worldwide users on a continuous basis in
all weather, day and night, anywhere on or near the
Earth which has an unobstructed view of four or more
GPS satellites.
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Architecture:
ZIGBEE
Zigbee module. The €1 coin, shown for size reference,
is about 23 mm (0.9 inch) in diameter. Zigbee is a
specification for a suite of high level communication
protocols using small, low-power digital radios based
on the IEEE 802.15.4-2003 standard for wireless
personal area networks (WPANs), such as wireless
headphones connecting with cell phones via shortrange radio.
The technology defined by the ZigBee specification is
intended to be simpler and less expensive than other
WPANs, such as Bluetooth. Zigbee is targeted at
radio-frequency (RF) applications that require a low
data rate, long battery life, and secure networking. The
Zigbee Alliance is a group of companies that maintain
and publish the Zigbee standard.
Blood pressure meter
A sphygmomanometer (blood pressure meter,
or blood pressure gauge (also referred to as
a sphygmomanometer ) is a device used to
measure blood
pressure,
composed
of
an
inflatable cuff to restrict blood flow, and a mercury or
mechanical manometer to measure the pressure. It is
always used in conjunction with a means to determine
at what pressure blood flow is just starting, and at what
pressure it is unimpeded. Manual sphygmomanometers
are used in conjunction with a stethoscope.
A sphygmomanometer consists of an inflatable cuff, a
measuring unit (the mercury manometer, or aneroid
gauge), and a mechanism for inflation which may be a
manually operated bulb and valve or a pump operated
electrically.
The usual unit of measurement of blood pressure is
millimeters of mercury (mmHg) as measured directly
by a manual sphygmomanometer.
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exceptionally, the heart rate signal range (80 ~ 120) /
min, if the heart rate exceeds this range, the lower
limit, the instrument does not sound, if the heart rate in
the range of the instrument ECG is the sound issue.
Pulse counting sensor
Heart rate is the speed of people's emotional state,
exercise intensity and objective indicator of cardiac
function. But most people are very difficult to
accurately measure the time and his heart rate values.
If the heart rate monitor with me, heart ECG electrodes
will be detected by monitoring the signal processing
device, the user can at any time that your heart rate
changes, changes in heart rate, self-monitoring status.
LM35
FEATURES DESCRIPTION
• Calibrated Directly in ° Celsius (Centigrade)
• Linear + 10 mV/°C Scale Factor • 0.5°C Ensured
Accuracy (at +25°C) • Rated for Full −55°C to +150°C
Range
• Suitable for Remote Applications
• Low Cost Due to Wafer-Level Trimming
• Operates from 4 to 30 V
• Less than 60-μA Current Drain
• Low Self-Heating, 0.08°C in Still Air
• Nonlinearity Only ±¼°C Typical
• Low Impedance Output, 0.1 Ω for 1 mA Load
Heart rate monitor for heart rate range (60 ~ 160) /
min. Circuit by adjusting the relevant components, in
the (60 ~ 160) / min within the audible alarm can
change the heart rate range. This heart rate ranges the
width of the design center values ± 20% range. If
central values such as emphasis on the 100 /
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Modules interfaced to ARM7
Software tools
Keil compiler is software used where the machine
language code is written and compiled. After
compilation, the machine source code is converted into
hex code which is to be dumped into the
microcontroller for further processing. Keil compiler
also supports C language code.
Flash Magic
Flash Magic is a tool which is used to program hex
code in EEPROM of micro-controller. It is a freeware
tool. It only supports the micro-controller of Philips
and NXP. It can burn a hex code into that controller
which supports ISP (in system programming) feature.
Flash magic supports several chips like ARM Cortex
M0, M3, M4, ARM7 and 8051.
Advantages:
 Ease of operation
 Low maintenance cost
 Fit and forget system
 No wastage of time
 Durability
 Accuracy
Applications:
 Hospitals
 Remote heart rate monitoring applications
 Body temperature Monitoring
 Local monitoring applications
 Designed for Home and Clinical Applications
Project Result shown in mobile with location details
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Future scope
Video monitoring could be used for monitoring
patients
Conclusion
Here we have designed a simple, low-cost controller
based A Wireless Tracking System for At-home
Medical Equipment during Natural Disasters
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