LabVIEW based Smart Monitoring System for Organ on a Chip platforms

LabVIEW based Smart Monitoring System for Organ on a Chip platforms

For the design of smart monitoring system, we will used LabVIEW and its data acquisition tools. The LabVIEW is a very sophisticated software that offers a graphical programming approach that helps to visualize every aspect of your application, including hardware configuration, measurement data, and debugging. This visualization makes it simple to integrate measurement hardware from any vendor, represent complex logic on the diagram, develop data analysis algorithms, and design custom engineering user interfaces. We will design a user-interactive, highly-efficient, robust GUI based software that will enable end-users to see the real time data being received from myriad biosensors and can further analyze the logged data (which is saved in the personnel computer) for their research work. Mainly, the software will provide the display of sensors embedded in the organ on a chip system, controlling of sampling time (after how much time, the samples should be logged), controlling of peristaltic pumps (their speeds, directions, and stop/start in real-time) and an intuitive feature for the users to enable whichever sensor (s) they want. Moreover, The software will have mainly two windows, which can be divided in to two parts. Part 1 (left red enclosed window) is about monitoring sensors, while part 2 (right redenclosed window) is about interfacing and controlling two peristaltic pumps.

The designed software needs a USB-DAQ unit, preferably National Instruments (NI) device.

SOP for Software

  • First open the software Folder with name ‘installer Pumps and Sensors V1’.
  • Double Click the executable file with name ‘AMM_2Pumps2Sensors_V1.0.exe’.
  • Install the software, simply following the instruction, like any other windows software is installed.
  • The installation process will take from 5 minutes to 15 minutes, depending on the speed of your computer.
  • The installation is one time, then an icon ‘shortcut’ on your windows desktop will appear.

 

Figure 1 Welcome window, when installation will start

 

  • After opening the software, following GUI will appear.
  • The software contains mainly two windows, which can be divided in to two parts.
  • Part 1 (left red enclosed window) is about monitoring 2 sensors, while part 2 (right red enclosed window) is about interfacing and controlling two peristaltic pumps.

 

 

 

 

Part 1 (Sensors Monitoring)

  • 3 Sensors can be monitored at the time, and also their data can be logged, while running the software, it will take it to your computer hard drive, where you can select the folder to log the continuous data.
  • Sensors’ calibration part needs the calibration equation which will be provided to you.
  • Output Channel Select- Select first analog channel (a0)
  • For Input Channel – Select first two analog channels (aio and ai1)
  • In sample time, you can provide input in seconds.
  • Apply voltage (0.45V)

 

Part 2 (2 Peristaltic Pumps Controlling)

  • Two Peristaltic Pumps can be controlled simultaneously.
  • In Serial Port, select the COM port to which your computer is connected.
  • Baud Rate is preset (2400), which must remain 2400.
  • Parity is ODD, which is also preset, which must not change.
  • Then Press, CONNECT; this will connect your computer to your two pumps.
  • In Address (Pump), Put 01 for 1st Pump, 02 for 2nd
  • In Address (PC), enter
  • Direction, CW means that the pump will rotate clockwise.
  • Direction, CCW means that the pump will rotate anti-clockwise.
  • In Speed, you must enter 3 digit speed number. For example, if you want to give 500 uL/min, just enter 500; In case of 80uL/min, you must enter 080.
  • APPLY, will send the command to the respect pump whose address is selected.
  • Serial Data Write and Serial Data Read are for debugging, so they are not related to users.
  • Command, if you want to Stop the respective Pump, then just press

 

If you need the software/code or any other help, let me know at afaquemanzoor@gmail.com 

 

 

 

 

 

 

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