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krishna
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SUBMITTED BY
EDGEFX TEAM
AUTOMATIC WIRELESS HEALTH MONITORING SYSTEM IN HOSPITALS FOR PATIENTS
ABSTRACT
• A generic real-time wired/wireless communication system is
designed and developed for short and long term remote patient
monitoring applying appropriate protocol.
• The Micro controller transmits the data over the air by RF or a
pair of wire.
• At the receiving end a receiver is used to receive the data and it
decodes and feeds to the Micro controller, which is then
displayed over the LCD display.
BLOCK DIAGRAM
HARD WARE EQUIPMENTS
• POWER SUPPLY BLOCK
• MICROCONTROLLER (AT89S52/AT89C51)
• DS1621 (TEMPARATURE SENSOR)
• LCD
• RF MODULES
• ENCODER (HT12E), DECODER (HT12D)
• IN4004
• LED
• RESISTORS & CAPACITORS
EMBEDDED SYSTEMS
Definition for :- EMBEDDED SYSTEMS
A combination of hardware and software which together
form a component of a larger machine.
An example of an embedded system is a microprocessor that
controls an automobile engine.
An embedded system is designed to run on its own without
human intervention, and may be required to respond to
events in real time.
EMBEDDED SYSTEMS
MICRO CONTROLLER
Compatible with MCS®-51 Products
8K Bytes of In-System Programmable (ISP) Flash
Memory
4.0V to 5.5V Operating Range
Crystal Frequency 11.0592MHZ
Three-level Program Memory Lock
256 x 8-bit Internal RAM
32 Programmable I/O Lines
Three 16-bit Timer/Counters
Eight Interrupt Sources
Full Duplex UART Serial Channel
Watchdog Timer
AT89S52
PIN DIAGRAM OF AT89S52
DS1621 (TEMPARATURE SENSOR)
Features:
• Measurements require no external components.
• Measures temperatures from -55°C to +125°C in 0.5°C increments.
Fahrenheit equivalent is -67°F to 257°F in 0.9°F increments.
• Temperature is read as a 9-bit value (2-bytetransfer)
• Wide power supply range (2.7V to 5.5V)
• Converts temperature to digital word in less Than 1 second
• Thermostatic settings are user definable and Non volatile.
• Data is read from/written via a 2-wire serial interface (open drain I/O lines).
• Applications include thermostatic controls, industrial systems, consumer
products, thermometers, or any thermal sensitive system
PIN DESCRIPTION OF DS1621
• SDA - 2-Wire Serial Data Input/ Output
• SCL - 2-Wire Serial Clock
• GND - Ground
• TOUT - Thermostat Output Signal
• A0 - Chip Address Input
• A1 - Chip Address Input
• A2 - Chip Address Input
• VDD - Power Supply Voltage
RF MODULES
Features • Range in open space(Standard Conditions) : 100 Meters • RX Receiver Frequency : 433 MHz • RX Typical Sensitivity : 105 Dbm • RX Supply Current : 3.5 mA • RX IF Frequency : 1MHz • Low Power Consumption • Easy For Application • RX Operating Voltage : 5V • TX Frequency Range : 433.92 MHz• TX Supply Voltage : 3V ~ 6V• TX Out Put Power : 4 ~ 12 Dbm
General Description
The ST-RX02-ASK is an ASK Hybrid receiver module.
Effective low cost solution for using at 315/433.92 MHZ.
The circuit shape of ST-RX02-ASK is L/C. Receiver
Frequency: 315 / 433.92 MHZ Typical sensitivity: -105dBm
Supply Current: 3.5mA
IF Frequency: 1MHz
• The HT 12E Encoder ICs are series of CMOS LSIs for Remote Control system applications. They are capable of Encoding 12 bit of information which consists of N address bits and 12-N data bits.
• The HT 12D ICs are series of CMOS LSIs for remote control system applications.
• This ICs are paired with each other. For proper operation a pair of encoder/decoder with the same number of address and data format should be selected.
• The Decoder receive the serial address and data from its corresponding decoder, transmitted by a carrier using an RF transmission medium and gives output to the output pins after processing the data.
RF Encoder & Decoder
LED
LEDs are semiconductor devices are made out of silicon
When current passes through the LED, it emits photons as a
byproduct. Normal light bulbs produce light by heating a
metal filament until its white hot
LEDs present many advantages over traditional light sources
including lower energy consumption, longer lifetime,
improved robustness, smaller size and faster switching
LIQUID CRYSTAL DISPLAY (LCD)
Most common LCDs connected to the microcontrollers are 16x2 and
20x2 displays.
This means 16 characters per line by 2 lines and 20 characters per line
by 2 lines, respectively.
The standard is referred to as HD44780U, which refers to the controller
chip which receives data from an external source (and communicates
directly with the LCD.
LCD BACKGROUND
If an 8-bit data bus is used the LCD will require 11 data lines
(3 control lines plus the 8 lines for the data bus)
The three control lines are referred to as EN, RS, and RW
EN=Enable (used to tell the LCD that you are sending it data)
RS=Register Select (When RS is low (0), data is treated as a command)
(When RS is High(1), data being sent is text data )
R/W=Read/Write (When RW is low (0), the data written to the LCD)
(When RW is low (0), the data reading to the LCD)
• The HT 12E Encoder ICs are series of CMOS LSIs for Remote Control system applications. They are capable of Encoding 12 bit of information which consists of N address bits and 12-N data bits.
• The HT 12D ICs are series of CMOS LSIs for remote control system applications.
• This ICs are paired with each other. For proper operation a pair of encoder/decoder with the same number of address and data format should be selected.
• The Decoder receive the serial address and data from its corresponding decoder, transmitted by a carrier using an RF transmission medium and gives output to the output pins after processing the data.
RF Encoder & Decoder
SOFTWARE REQUIREMENTS
PROGRAMMING LANGUAGES
Embedded C , ALP (Assembly Language)
COMPILERS:
Keil 2.0/3.0uv
DUMPING SOFT WARE:
Using Micro controller flash Software we are dumping
our HEX Code into Micro Controller
KEIL COMPILER WINDOW
BIBILOGRAPHY
The 8051 Microcontroller and Embedded systems” by Muhammad Ali
Mazidi and Janice Gillispie Mazidi , Pearson Education.
ATMEL 89S52 Data Sheets.
www.atmel.com
www.beyondlogic.org
www.wikipedia.org
www.howstuffworks.com
www.alldatasheets.com
THANK ‘Q’
