Monday 24 September 2012

METHODOLOGY




The main focus of this research is to develop quite simple device to help baby breath again when stop breathing or apnea happen. Therefore new developments in reliability estimation techniques will be proposed, tested and applied to analysis and design of home apnea monitor using stretch sensor. In the research study and analysis about the limitation, this project has come out specification of stretch sensor and vibration motor. This sensitivity analysis on Home Apnea Monitor components will be performed to investigate their effect on the overall system reliability levels. We also study about the hardware to known their characteristic, function, and all circuit with related.

The method we will use for this project is using stretch sensor as input, vibration motor and alarm/buzzer as output. The stretch sensor will detect every each contraction movement of chest’s baby. When the baby stop breathing until 15-20 second, the alarm will turn ON but if it below the limits set on the monitor, the sensor will reset.

Software required in this project
-          Proteus V7.4 circuit simulator
-          PIC Programmer

Hardware required in this project
-          Stretch sensor
-          Vibration motor
-          Alarm/ Buzzer
-          PIC 16F877A 

Monday 10 September 2012

Vibration Motor





This is a small flat coin vibration motor with adhesive backing. Vibration motors are used today in an endless amount of applications. These are quality motors used in medical, automotive, consumer and industrial products.
Applications in which our vibrating motors can be used are in feedback of handheld devices, touch screen feedback, emergency alerting, simulations, video gaming and other operator feedback applications.
Key Specifications:
  • Rated Voltage 3.0VDC
  • Operating Voltage 2.7~3.3VDC
  • 1.cm (diameter) X .27cm (thick)
  • Wire length of 2.54cm
  • Operating Voltage 2.7~3.3VDC
  • Rotation, CW or CCW
  • Operating Environment -20C ~+60C
  • Rated Speed 9,000 RPM @ Rated Voltage
  • Rated Current 90mA @ Rated Voltage
  • Mechanical Noise 50dB(A)Max 

Monday 3 September 2012


PIC Microcontroller



PIC is a family of modified Harvard architecture microcontrollers made by Microchip Technology, derived from the PIC1650[5][6][7]originally developed by General Instrument's Microelectronics Division. The name PIC initially referred to "Peripheral Interface Controller".[8] [9]

PICs are popular with both industrial developers and hobbyists alike due to their low cost, wide availability, large user base, extensive collection of application notes, availability of low cost or free development tools, and serial programming (and re-programming with flash memory) capability. They are also commonly used in educational programming as they often come with the easy to use 'pic logicator' software.