1. Presentation By: Humayun Rashid
A Low Cost Automated Fluid Control Device using Smart Phone for Medical Application
Humayun Rashid, Sarjahan Shekha, S M Taslim Reza , Iftekhar Uddin Ahmed,
Qader Newaz, Md. Rasheduzzaman
Electrical and Electronic Engineering (EEE),
International Islamic University Chittagong (IIUC),
Chittagong-4314, Bangladesh
Presentation By: Humayun Rashid

2. Introduction
Generally, there is often a requirement of examination of the saline amount following specific time.
Normally, in hospitals, the saline stage is checked by nursing staff and patient’s family members.
The quantity of Regular Saline consumption by the patient completely relies upon the physical state of the patient.
The current method for saline levels tracking is certainly quite time intensive and annoying for medical workers.

3. Limitations of Previous Work
Some monitoring device has been developed using the android smartphone, ZigBee and IOT.
In all the previous system it was seen that there is no automatic control of flow rate using smart phone.

4. Contributions The proposed system of this paper is to-
Detect and control the flow rate or fluid label accurately
Control the amount of drop of saline using a smartphone and manual control.

5. Overview Of Proposed System
The system will be able to control the flow rate automatically according to the command given to the device by the user.
A flow sensor will be developed and employed to the drip chamber of the saline bottle to determine the circulation rate of the saline.
Once command will be given to the device it will continuously check the flow rate and balance with the command given by the user.
A water drop flow detector sensor will detect the water drop accurately.
Error reading can be determined by signal conditioning circuit and will be removed by an isolator circuit.
Fig 1: Block diagram of proposed automated fluid control device

6. Hardware Arrangement of Proposed System
Fig 3: Functional diagram of hardware arrangement of proposed system
Fig 4: Hardware arrangement of proposed automated fluid control device

7. Circuit diagram of the proposed System
The row of the keypad has been connected to the digital pins of 5, 4, 3, 2 and column of the keypad has been connected to the digital pins of 6, 31, and 32 of Arduino Mega.
LCD display has been connected to the digital pins 7, 8, 10, 11, 12, 13 of Arduino Mega. Pin 3 of the LCD has been connected to 5 volts through a potentiometer to change the LCD contrast.
The servo has been connected to the PWM output pin 9 of the Arduino Mega.
Bluetooth module has been interfaced with the microcontroller using two data pins RX and TX. RX of the Bluetooth module has been connected to TX of Arduino Uno which is digital pin 1 and TX of Bluetooth module has been connected to Rx of Arduino Uno which is digital pin 0.
Fig 2: Circuit diagram of Automated Fluid Control Device

8. Flow sensor
One of the challenging parts is to determine the flow rate of the fluid by calculating the time between two drops.
The drop detection has been determined by making a flow sensor consisted of two metal wire in parallel very closely to each other.
During the drop of liquid from the saline bottle, the liquid will touch both of the metal wires which allow a small current to flow to activate a transistor.
The system was providing very high-frequency noise which caused error reading by the microcontroller.
The problem has been solved by a noise removing circuit using LDR and LED to remove the noise and measure the flow rate of fluid accurately.
Fig 5: Flow sensor

9. Development of Rotating Valves
The flow of liquid is controlled by a valve with moving wheel attached to a servo which is able to rotate 0o to 180o to control the flow rate. The valve is able to completely press the pipe when the servo was at 0o and completely release the pipe when the servo is at 180o.
Fig 6: Construction of Valve

10. Programming and Software Design
Fig 9: Flow Chart
Fig 10: Proposed User Interface

11. Implementation of Complete System
(b)
(c)
Fig 7: Implementation of proposed Automated Fluid Control Device
Fig 8: (a). Input stage (b). The stage after input (c).Balance stage

12. Conclusion
The device is reliable and therefore, can be used effectively.
Once the command is given to the device it keeps the flow rate constant regardless of the level of water from the patient.
This low-cost medical device may have potential use for patient health care, especially in developing countries like Bangladesh.

13. References
C.C. Gavimath, Krishnamurthy Bhat, C.L. Chayalakshmi, R. S. Hooli and B.E.Ravishankera, "Design And Development Of Versatile Saline Flow Rate Measuring System And Gsm Based Remote Monitoring Device", International Journal of Pharmaceutical Applications, vol. 3, no. 1, pp , 2012.
Manoj Kumar Swain, Santosh Kumar Mallick, Rati Ranjan Sabat, "Smart Saline Level Indicatorcum Controller", International Journal of Application or Innovation in Engineering & Management (IJAIEM), vol. 4, no. 3, pp , 2015.
Mansi G. Chidgopkar, Aruna P. Phatale, "Automatic and Low Cost Saline Level Monitoring System Using Wireless Bluetooth Module And Cc2500 Transreceiver", International Journal of Research in Engineering and Technology, vol. 04, no. 09, pp , 2015.
I.S.Tawade, M.S.Pendse, H.P.Chaudhari "Design and Development Of Saline Flow Rate Monitoring System Using Flow Sensor, Microcontroller and Rf Zigbee Module", International Journal Of Engineering Research And General Science, vol. 3, no. 3, pp , 2015.
Priyadharshini.R , Mithuna.S , Vasanth Kumar.U, Kalpana Devi.S , Dr. SuthanthiraVanitha.N,"Automatic Intravenous Fluid Level Indication System for Hospitals", International Journal for Research in Applied Science & Engineering Technology (IJRASET), vol. 3, no. 8, pp , 2017.
J. Singh, M. Tiwari and M. Shelar, "ZigBee based Patient Monitoring System", International Journal of Computer Applications, vol. 51, no. 22, pp , 2012.
A. P.P.Belgali, "Implementation of GSM Based Real Time Patient Monitoring System", International Journal of Innovative Research in Science, Engineering and Technology, vol. 4, no. 8, pp , 2015.
Anbumani.S , Kavin.R , Saranya.A, Dineshkumar.T, Premkumar.R"AN INTELLIGENT PATIENT TELE-MONITORING SYSTEM USING ANDROID TECHNOLOGY", International Journal of Research in Engineering and Technology, vol. 04, no. 02, pp , 2015.
"Normal Saline Solution", Paramedicine.com, [Online]. Available:
"Property and composition of solutions", Intranet.tdmu.edu.ua, [Online].Available: roperties%20of%20solution..htm.
"Arduino – Arduino Board Mega2560", Arduino.cc [Online]. Available:
["HC-03/05 Embedded Bluetooth Serial Communication Module AT command set", [Online]. Available: set_201104_revised.pdf.