W9 - 13 (23/04/2013)

Prepare for presentation FYP2


Objective : To make a poster and ready the prototype for project demo.

Result : Poster are in the process of making. Prototype is already built in PCB and ready to put in cases.

Next Week : Final Report progression continued. focus on chapter 4 and chapter 5.

W8 - 13 (21/04/2013)

Assemble and Combining - Coding  / PCB etching + move in circuit from Breadboard to PCB 

Objective : This week to finish the hardware and software part and focusing on presentation and documentation. To construct circuit on PCB board, so about 3 board: Arduino UNO, power supply and sensor.

Result : The hardware are almost complete, only one component left (integrated switching regulator). Arduino UNO coding still need to be fix to be function correctly. The most important is arduino UNO can be burn anytime.

Next Week : Prepare for FYP2 presentation

 Sensor circuit

 Arduino UNO and LCD

 Air pump DC motor, micro solenoid escape valve

 Display the Sys, Dias and HeartRate .. still need to fix coding

 

inflated cuff OMRON

 Switch / Push button 

 Full circuit view .. 

W7 - 13 (10/04/2013)

Sensor circuit, arduino microcontroller circuit. (the picture for the circuit will be update soon)

Objective : To finish constructing the sensor circuit and also to determined the connection for the arduino microcontroller.

Result : The sensor circuit is completed with the use of freescale mpx2050gp pressure sensor and others circuit are still in progress. Required air pump motor and solenoid valve for controlling air pressure (waiting for component availability)

Next Week : [If possible will put the completed parts of the circuit on PCB board] Working a little bit on the final report progress and finding the required components for project circuitry.

W6 - 13 (01/04/2013)

Constructing power supply circuit

Objective : the circuit for sensor needed about 5 Volt to work correctly so a power supply circuit with voltage regulator +5V and -5V will be design

Result : In Progress ... will be show together with sensor circuit to test its capability

Next Week :  Will be focus on microcontroller and motor/valve circuit plus coding entirely ..

W5 - 13 (24/03/2013)

Design, construct and testing the sensor circuit (FYP2)

Objective :

Doing a lab session to test sensor circuit

1. to test the sensor range, sensitivity and capability. (in progress)
2. the input signal is amplified using the op-amp AD620 and another two op-amp OPA277
3. the output signal taken from each end of op-amp and dc coupler

Result : 

Still in progress: reason. needed motor and valve circuit, inflatable cuff, microcontroller circuit.

W4 - 13 (12/03/2013)

Design and Construct the circuit for BP monitor.


Objective : to build the full circuit system for Portable BP monitor. 



Result : [in progress] the circuit is separated by 3 parts : sensing, power supply and circuit controller (MCU).

Next Week :  Still on testing the sensor circuit

W3 - 13

Objective : Constructing Sensor Circuit

Schematic Diagram (Part1 - Sensor)

Honeywell Pressure Sensor 

 Board Mount : Low Pressure Sensors : Basic NBP 

NBPDANN015PGUNV

 The function of this circuit is to amplify and filter the analog signal received from the transducer and then send the signal to ADC to be converted.

Result: Still in progress.

reference:

http://sensing.honeywell.com/product%20page?pr_id=144020

 Next Week: Sensor circuit constructing continued.

W2 - 13

Blood Pressure Cuff (Suntech Medical)


There are two types of BP Cuffs; the disposable BP cuffs and the durable BP cuff.

 

*colour-differentiate design*

•  Disposable BP cuffs
• soft
• single-patient
• to minimize cross-contamination for infection-control conscious hospitals

•  Durable BP cuffs
• long-lasting
• durable
• easy to clean
• general-use clinical applications, line includes

  The reason for this research is to understanding the applications of the BP cuffs and this will give a great example to get a good result when doing a BP measurement.

Reference
http://www.suntechmed.com/bp-devices-and-cuffs/bp-cuffs
** http://www.shopping.com/Omron-Healthcare-Omron-Cuff-for-HEM-780N-Blood-Pressure-Monitor-Omron/info

W1 - 13

Full Block Diagram - reference for Pressure Sensor for medical applications.

Sensor (Freescale Xtrinsic)

This is the example of pressure sensor that is going to be used in this project. This sensor specialty is known use widely in various applications

• Non-invasive and invasive blood

pressure monitors (target applications)

• Fetal heart rate monitors
• Inhalers and ventilators
• Wound management
• Patient monitoring systems
• Spirometer and respiratory
therapy devices
• Sleep apnea (CPAP machines)
• Dialysis systems
• Drug delivery systems
• Hospital beds