Showing posts with label hardware. Show all posts
Showing posts with label hardware. Show all posts

[ Introduction ] An android based monitoring and alarm system for patients with chronic obtrusive disease.

 

Some Importantant links below with reports.just view the link below. if u want any project report just search any project on our search box
Arduino interesting projects:   
Arduino 30 simple and good projects 
Atmega projects lists
Android Electronics projects lists
Rf based Projects with report
engineering study notes 
GSM GPS based projects with report
Bluetooth based projects with reports

 

Chapter 1

Introduction

The following introduction includes motivation for the current thesis work,
based on major health care problems including fast aging of population. We
also provide a full description of the task and introduce a structure of the thesis.

1.1 Motivation

According to the latest United Nation statistic reports, the mean age of the
population is expected to grow rapidly in developed countries within the next
several decades 1. This will subsequently increase the cost of the health care and
result in significant loss for the national budgets. However, the latest achievements
in different fields of technologies may allow us to minimize the problem
and successfully integrate these technologies into the modern health care systems.
Health care is an essential part of everyday life for all human beings on
the planet. Each of us requires a periodic monitoring of vital parameters and
right treatments based on this data. These processes become even more crucial
when people reach a certain age and are not able to follow their health condition
properly without a special medical personnel or sophisticated equipment
to perform the monitoring. The older a person gets, the wider spectrum of possible
diseases and unexpected emergency situations might occur[3]. In order
to avoid this, he or she needs to be transported to the hospital, observed by
medical staff and provided with immediate help if some of the parameters are
abnormal. In many cases, even a short delay might lead to the dangerous consequences
including death of the patient. Nowadays, there is a wide spectrum
of modern monitoring devices which possess a various number of capabilities
and can assist personnel in the hospital to work with old or disabled people.
However, normally, these basic health parameters are being monitored and
measured by medical personnel only at discrete intervals. This common approach
can sometimes lead to the loss of crucial data (e.g. during the night).
1World’s Population, http://www.un.org/esa/population/publications/ageing/ageing2009.htm

Therefore, a particular interest is focused on continuous monitoring techniques.
Unlike the spot checking, this type of monitoring is capable of providing a longterm
information about the patient, helps to register emergency situations and
react adequately to any significant change in person’s health conditions in a
real time. However, the correlation between certain health parameters during
a long period of time is yet unclear. Therefore, this type of system could assist
in studying this correlation and eventually provide us with a full and complete
patients health profile, which will be subsequently analyzed by professionals.

1.2 Task description

Based on the motivation part, we can formulate the main objective of the thesis,
which implies combination of the latest development in mobile phone market
with signal processing techniques and sensor devices in order to create a
sophisticated monitoring system. The project is based on the android mobile
device (Motorola Galaxy series) and includes pulse and oximetry sensor as an
additional device. An accelerometer, embedded in the phone is also used as an
additional sensor. The main goal is subsequently divided into two parts: in the
first part we establish a reliable connection between mobile device and a sensor
to collect continuous data from patients. In the second part we examine
collected data using different sorts of processing techniques and algorithms.
Patience mobility is also an important aspect to consider. We want a person to
maintain his normal activity level while using monitoring system. Summarizing
all mentioned above we can combine a list of desired steps:
• reliable connection
• maintain patients mobility
• data collection
• correlation analysis
This project is considered as a main step towards smart monitoring system.
It will serve as an assistant device measuring patients health parameters and
triggering alarm in case of emergency. It is implemented through a close collaboration
between Artificial Intelligence and medical experience for the benefit of
the Health Care.

1.3 Thesis outline

The following thesis work contains four main chapters
- Chapter 1 represents the introduction part of the current research, contains
subsections for motivation and a full task description
- Chapter 2 gives an overview of the related work that has been done in the
area and results of the background search. The chapter is based on a project’s
description for the Ubiquitous Healthcare systems, followed by some significant
works in Fuzzy logic applied for the medical purposes.
- Chapter 3 represents a full system set up realized before the actual testing of
the application and signal processing. Contains a full description of the main
sensor device involved in the experimental part.
- Chapter 4 depicts a full overview of the analytic part of the work. Data
processing including ”change point detection” and ”anomaly detection” is followed
by ”activity correlation”.
- Chapter 5 is based on a testing of the system in a real environment involving
patient trial together with stress testing beforehand. The conditions and details
of the experiment is followed by conclusion, drawn on the achieved results.

Some Importantant links below with reports.just view the link below. if u want any project report just search any project on our search box
Arduino interesting projects:   
Arduino 30 simple and good projects 
Atmega projects lists
Android Electronics projects lists
Rf based Projects with report
engineering study notes 
GSM GPS based projects with report
Bluetooth based projects with reports
if u like the post just say thank u in comment box.

ANDROID BASED ELECTRONICS PROJECT

[ Android ] Bluetooth Oscilloscope

Android Bluetooth Oscilloscope


*This application is tested only with Samsung Galaxy GT-i5700 Spica (rooted Android 2.1 OS, i570EXXJD1 Baseband version).
The transmitter circuit uses Microchip's dsPIC33FJ16GS504 for the analog-to-digital conversion of the input signals on two channels. The processed data on the dsPIC are then transmitted to the phone (for waveform display) via the LMX9838 bluetooth SPP module.


specs/ranges:
  • time per division: {5us, 10us, 20us, 50us, 100us, 200us, 500us, 1ms, 2ms, 5ms, 10ms, 20ms, 50ms }
  • volt per division: {10mV, 20mV, 50mV, 100mV, 200mV, 500mV, 1V, 2V, GND}
  • analog input (depends on external pre-amplifier configuration): {-8V to +8V }


The source codes for the bluetooth communication is based on Bluetooth Chat example from http://developer.android.com. That example contains three java source files. And, I've completely copied the "DeviceListActivity.java", which is used for searching remote bluetooth devices. Then I've modified the "BluetoothChatService.java" to use only the RFCOMM Client functions, and used the well-known UUID "00001101-0000-1000-8000-00805F9B34FB" for the Bluetooth RFCOMM/SPP.
 
For the plotting of waveforms, I'm using SurfaceView object to draw on its canvas. This tutorial found on www.helloandroid.com helps me a lot for this task: "How to use canvas in your android".



The rest of the job mainly involves porting of my previous Python S60 script to JAVA language. It was too painful on my side, because I had to convert a single script file to multiple java + xml source files! Nonetheless, it was a good experience for me on learning the Android SDK (JAVA programming).

Project source codes for Android and dsPIC (with APK and HEX) :
AndroidBluetoothOscilloscope.zip

Electronicslab.ph forum link : Android Bluetooth Oscilloscope

Here are some interesting projects that are also based on the Bluetooth Chat example:
Bluetooth Controlled Model Car
SPRIME

Special thanks to:
Samdroid Forum  for the customized/rooted firmwares for our Spica.
Tipidcp Spica users for sharing their tips and experiences with this android phone.

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#edit (10-15-2010)
Here's now my circuit. Nothing special on it, all are based on existing circuits.

*The dsPIC I have used is most probably NOT the best choice for this project because of the many left unused peripherals (extra pins). But, this is the only part readily available in my bin and it has the fastest ADC (2 x 2MSps) among the chips I have.
*If you prefer to change the input range via the op-amp preamp, the computation is located on the "adc.xmcd" file.
*You can use other SPP bluetooth modules aside from LMX. (accdg to manufacturer, it's already obsolete)

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#edit (9-14-2011)

It's almost a year now, and yet some people are still interested in this project (considered to be obsolete). So I've decided to place the source repository also on Google Code site. You can either Browse or use git to have your own local copy:
if u like the post just say thank u in comment box.

[ ANDROID ] Bluetooth Controlled Model Car



Bluetooth Controlled Model Car

15.06.09
Ever since seeing the first bluetooth controlled RC car I wanted to make one. For those who haven't seen it, it used a serial port Bluetooth module (about 200 USD), a "Mini SSC II" serial servo controller board (roughly 50 USD) and an old RC car. . Needless to say it was unnecessarily expensive, which really put me off. So years passed until I suddenly stumbled across some really cheap GP-GC021 bluetooth modules on ebay. (Update: Since then I've found an even cheaper unit which is superior. See the RF-BT0417C) What made them so special was that they were directly TTL compatible UART modules. Not only would I save vast amounts of money, but also effort by not having to use RS-232 voltage levels. I decided to use the RC car from my previous RF control endeavors, but also add servo steering so it would be more fun and practical to use. Given my previous work on the COM laser turret, controlling motors over a serial protocol was no difficulty, and the firm- and software required was already written. The only new thing required would be implementing servo control over a serial protocol.

ISO-OSI 7-Layer Network Architecture

 click here complete Lecture Notes: Computer Networks


ISO-OSI 7-Layer Network Architecture



This lecture introduces the ISO-OSI layered architecture of Networks. According to the ISO standards, networks have been divided into 7 layers depending on the complexity of the fucntionality each of these layers provide. The detailed description of each of these layers is given in the notes below. We will first list the layers as defined by the standard in the increasing order of function complexity:
  1. Physical Layer
  2. Data Link Layer
  3. Network Layer
  4. Transport Layer
  5. Session Layer
  6. Presentation Layer
  7. Application Layer

Physical Layer

This layer is the lowest layer in the OSI model. It helps in the transmission of data between two machines that are communicating through a physical medium, which can be optical fibres,copper wire or wireless etc. The following are the main functions of the physical layer: