1. Design of an Incubator for Premature Infant Based on Lab VIEW
INTERNAL GUIDE
Mrs.H.ABIRAMI M.E
Lecturer \ICE DEPT.
S.I.T
SUBMITTED BY
M.HAJA MUBINUDEEN( )
M.MOHAMED BUKHARI( )
K.ARUL JEEVA( )

2. OBJECTIVE
To create an atmosphere that simulates an environment equivalent to the uterus of a mother
With facilities include
automatic temperature control
automatic humidity control
remote alarming

3. ABSTRACT
This project introduces the system structure,hardware circuits, control algorithms,
The software program of the incubator for premature infant based on LabVIEW.
The main advantages of this device are that preheating is less time than others, the capability of meeting of emergency situation is provided
Control track of temperature and humidity are visible, operation is easy to clinical practice, and maintainability is possessed

4. Existing System
They are partially or completely Manually controlled systems, which requires a skilled man power.
Analog type of value setting and displays, hinder the user in recognize the status.
Remote monitoring and controlling is not possible since there is no PC interface.
Not having GUI for interfacing and control

5. Proposed System
Remote monitoring and controlling of system is possible.
Graphical User Interface provides an efficient communication between the man and machine
Remote Calling Facility, in case of any emergency
Digitized control make it easy to set the values and reading the data

6. Incubator
Incubator for premature infant is a man-made environment of simulating temperature and humidity in uterus.
Here temperature control and humidity control are emphases entire design.
System structure of Incubator for premature
infant is based on LabVIEW

7. BLOCK DIAGRAM Temp. DAQ Sensor1 LAB View PC M.C Temp. Sensor2 Heater
Cooler
Humidifier
Humidity
Sensor

8. Functionality
Temperature sensor senses the ambient temperature and the measured value is fed to the PC and is processed by lab view.
If the value deviates from set value, then correction is made through heater and cooling system.

9. Functionality contd..
Relative humidity is measured by the humidity sensor and is fed to the Lab View system.
If the humidity value deviates from set value, then the humidifier will be switched on to bring the required humidity level.

10. Heat Control System
This system involves a heating Lamp for increasing the ambient temperature of the chamber.
The heating is of radiative type.
The cooling is done by a cooling fan.
This system cools the chamber by injecting cold air inside the chamber.

11. Hardware
Temperature sensor
Humidity Sensor
PIC 16F877A
Relay

12. Need for LM35
Most commonly-used electrical temperature sensors are difficult to apply.
Thermistors are nonlinear.
In addition, the outputs of these sensors are not linearly proportional to any temperature scale.
Early monolithic sensors, such as the LM3911, LM134 and LM135, overcame many of these difficulties, but their outputs are related to the Kelvin temperature scale rather than the more popular Celsius and Fahrenheit scales.

13. Humidity Sensor Items SY-HS-220 Rated voltage DC 5.0V Rated power
≤3.0mA
Operating temperature
0-60◦C
operating humidity
30-90%RH
Storage humidity
Within 95%RH
Storage temperature
-30—85◦C
Standard Output
DC 1.980mw(at 25◦c 60%RH)
Accuracy
± 5%RH(at 25◦c 60%RH)

14. Humidifier
The most common type of humidifier is called an evaporative humidifier.
This type of humidifier is actually quite simple and, for the most part, self-regulating.
A reservoir holds cold water and dispenses it into a basin.
A wicking filter absorbs the water from the basin.
A fan then blows air through the moistened filter.

15. Software
Embedded ‘C’
LAB View
CCS compiler
PIC Kit2
MPLAB IDE

16. Need For VI
It has characteristics of high efficiency
Self-checking function of hardware circuits and software program.

17. LAB-VIEW
Lab-view is a graphical programming environment used for high lelvel or system level design.
Easily develop,maintain and understand code with an flowchart representation
Faster Programming

18. Advantages
Alarm for fan when it can not turn, alarm for sensor when it has been broken, and alarm for humidifier when it can not work .
Improved detecting speed
humidity sensor
intelligence and automation.

19. Schematics

20. Conclusion
This system used Lab VIEW to build makes all operation in control of keyboard or mouse.
In this sense, it makes hardware design easiest and cuts down production cost. At the same time, it provides advantage for improvement of system.
This method also uses Lab View's features that it is interactive graphics, a state-of-the-art interface, and a powerful graphical programming language to make this system briefly.
Practice proves that this system has favorable usability

21. RESULT

22. References
[1] Z.Y .Wu, D. Liu, P.G. Qu, J.Lu, Q.H.Yang, Development and application of an incubator for premature infant, Shanghai,ch:
Information of Medical Equipment, vol. 19, no. 5, pp1–3., May 2004.[2] Zh.Sh.Lei, LabVIEW 7 Express practicality technical tutorial, Beijin,Ch: China Railway Publishing House, April 2004.