03-09-2014, 10:25 AM
TELEMEDICINE SYSTEMS
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ABSTRACT
This project is used in hospitals, because the patients in the ICU need a constant
monitoring of their body, Respiratory Temp, Saline Status and ECG. Our project is a
working model that incorporates sensors to measure all these parameters and transfer it to
the computer, so that the patient condition can be analyzed to by doctors in any part of
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accurate results, wherever there is an abnormality fell by the patient, we have also
incorporated saline monitoring system which gives an alarm when the saline bottle about
to empty .
INTRODUCTION
agnosis, treatment and patient care. It can be divided into two modes of
operation (Lin 1999)
Real patient data are available at the remote terminal immediately after
acquisition and time mode which is the store-and-forward mode which involves
accessing the data at a later time (Craig 1999)
SYSTEM ARCHITECTURE
System specification
The system consists of a database server, access terminals, complete body
scanning kit and the mobile phone, the access terminal communicates with the database
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receives short messages alerting of the patients are in an emergency situation.
The above technical capabilities suggest that use of current mobile phones and
access terminals in telemedicine is feasible in areas where the application operates in a
client-server fashion
System arch
System architecture
This shows the architecture for the interface between the complete body scanning
system, the database server, the access terminal and the mobile phone.
The user interface application at the front end, which is written in MS Visual
Basic 6.0, will interface with the database server via ODBC. All data that the application
accessed and manipulated with are stored in a relational database system is an MS access
database system which is a repository to store the ECG, heart beat, respiratory
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abnormal readings form the patient, short messages are sent to clinicians mobile phone by
using MS Outlook.
PIC MICROCONTROLLER BOARD DESCRIPTION
The pic micro controllers are supported with a full range of hardware and software
development tolls. The used PIC16F877 device comes in 40pin package to communicate
with the pic we are using rs232 port of the computerThe PIC micro controller board consists of circuits necessary to operate a micro
controller with PC interface. To have a PC interface for a heart beat rate-monitoring
system we have used a PIC micro controller IC PIC16F877.
The board contains provisions for interfacing 8 analog inputs and 23 digital level
signals
Patient calling system
Patient call switch is quite useful for total automation. The reason is while
automating the body temperature acquiring ECG and BP the manpower is not at all
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room if in case of assistance required for the patient they can use the switch to call the
hospital personals. We have forced four switches to logical high state through 1k resistor.
So when the switch is not pressed, switch contact will be logical high. The other end of
the switches the connected to the ground so whenever the switch is pressed, port will get
a logical low.
We have designed the software in such ways that it will produce a call message
whenever the port receives a low logic circuit. When two or more switches are
simultaneously pressed all the messages will be displayed one after another and will be
holded as long as the switch is pressed.
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