MAASTECH R.ASHOK KUMAR -+91 98402 34766/+91 81444 34766 www.maastechindia.com

1. EMBEDDED SYSTEM ANDROID
PERSONALLUNG FUNCTION MONITORING DEVICES FOR ASTHMA
PATIENTS
ABSTRACT:
Asthma is a chronic disease and a growing health problem worldwide. The objective of
this pilot study was to test the feasibility and utilization of tracking asthma symptoms through an
innovative mobile phone application. Providing health care. It is therefore important to develop
accurate devices to monitor the disease symptoms so doctors can take appropriate steps to treat
the patient with proper medication. One effective way to track asthma symptoms is to monitor a
patient’s peak expiratory flow (PEF).
There are presently many different handheld PEF monitors commercially available, and these
suffer from a variety of different limitations. Many current PEF meters are inaccurate,
inconvenient to use, bulky, expensive, and rarely include real-time data plotting capabilities. We
have created a user-friendly, accurate, and moderately inexpensive external mobile device
accessory that records and stores the user’s PEF, and graphs this data over time. We also have
created a custom software interface to forward this stored data electronically. E-mail forwarding
and “telemedicine” capabilities will give physicians a better way to monitor the patient’s PEF
over time, leading to a more convenient method for physicians to make appropriate changes in
patient medication regimens.
EXISTING SYSTEM
 Traditional methods of monitoring, such as manual asthma diaries, have not been very
successful largely because these methods require more effort and commitment than most
patients can easily devote.
 The efficacy of an asthma monitoring plan using PEF decreases, however, when patients
deviate from their prescribed medical action plan or fail to follow the plan entirely.

2. EMBEDDED SYSTEM ANDROID
PROPOSED SYSTEM:
 A novel approach to simplify the data collection and sharing process was investigated to
create a convenient, accurate, and portable PEF device that enables patients to use the
device in any setting.
 This paper outlines the sensor development and instrumentation steps required to enable
real-time collection of PEF data from patients onto mobile phone or computing devices.
 Measuring asthma levels as well as environmental level using gas sensor. when threshold
level is exceed automatically play the voice using APR voice board.
BLOCK DIAGRAM:
1. TRANSMITTER UNIT
Power Supply Unit
Step down
Transformer
(230 to 12v AC)
Bridge
Rectifier
Filter
Circuit
Voltage
Regulator (IC
7805)
Micro controller
Pressure
Sensor
C02
Sensor
ADC
LCD
display
Bluetooth
module
UART
APR

3. EMBEDDED SYSTEM ANDROID
2. RECEIVER SIDE:
HARDWARE REQUIREMENT:
 Microcontroller
 LCD
 ADC
 Pressure sensor
 Gas sensor
 APR (Auto Play back Recorder) voice board.
 Bluetooth.
SOFTWARE REQUIREMENT:
 MPLAB
 Embedded c