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Parallax Basic Stamp II

Parallax Basic Stamp II. Overview and Implementation Bronwyn Duffield Final Project Dr Karwowski Physics 102 – Electronics II Advisor: Derek Duffield, Senior Imaging Specialist, Siemens Medical . Overview. 1. BS2 Overview and Introduction to my Project. 2. Heart Disease problem.

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Parallax Basic Stamp II

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  1. Parallax Basic Stamp II Overview and Implementation Bronwyn Duffield Final Project Dr Karwowski Physics 102 – Electronics II Advisor: Derek Duffield, Senior Imaging Specialist, Siemens Medical

  2. Overview 1. BS2 Overview and Introduction to my Project 2. Heart Disease problem 3. Project Proposal and Progress 4. Results and Difficulties 5. Costs and Future Plans 6. Acknowledgements

  3. What is it, and why do I care? The BASIC Stamp II, made by Parallax is a single-board computer that runs a language called PBASIC. More advanced commands let the Stamp interface with other integrated circuits, … … communicate with each other, and operate in Networks. The BS2 language is easy to comprehend. The BASIC Stamp has prospered in hobby, lower-volume engineering projects and education due to ease of use and a wide support base of free application resources.

  4. More on the Basic Stamp II Advantages of the Basic Stamp II: Ability to interface with GUIs such as LabVIEW Relatively Inexpensive Very easy to use and understand Small/Compact Tons of information available

  5. BS2 Software and Hardware

  6. Example BS2 Program

  7. Problem • In 2002 a total of 2,443,387 deaths occurred in the United States. • The age-adjusted death rate, which eliminates the effects of the aging of the population, was 845.3 deaths per 100,000 U.S. standard population. • Heart disease and cancer continued to be the leading and second leading causes of death, together accounting for over half of all deaths.

  8. Project Proposal • By incorporating specialized hardware and software into cardiac examinations, death can be prevented. • The overall goal of the project to provide a software program that is able to show Freeze-Framed Images of the Heart that are synchronized with the patients actual heartbeat. • The Physician will be able to specify times that correlate to certain components of the patient’s heart beat, those pulses from the GUI will then be sent to an X-Ray machine. • The benefit of synchronizing X-Ray images of the heart with the patient’s heart beat is that Physicians will be able to see the heart, and any defects, at a much slower rate. Therefore, details that before would have gone unnoticed, will be easily identified. • Unfortunately, due to time constraints, we were unable to finish the second part of the project. We plan to work more in the future.

  9. Part 1: ECG Monitor • This part of the project included using a ECG simulator to produce a patients heartbeat, amplify the signal through Signal Processing, use the BASIC Stamp II to input the signal, acquire the signal in LabVIEW, and then display the Heart Rate in beats per minute (BPM). • I used a serial cable to send and receive the data. Therefore, the data I received in LabVIEW was in the form of a string of ASCII characters. • The BASIC Stamp II Homework Board was used instead of the Board of Education BASIC Stamp II. This was due to cost restrictions.

  10. Progress Diagram Phase 1 Phase 2 Phase 3 Learn the PBASIC Programming Language and plan project. Incorporate LabVIEW Design and build the ECG Monitor and Implement the BS2

  11. Project Proposal ECG Simulator Signal Processing BS2 Program Monitored Hear Rate A program written in the BS2 programming language PBASIC is used to configure the board. The signal, however, is very difficult to read. Therefore, some signal conditioning needed to be done. The amplified signal is acquired using the BS2 and s serial com port and the heart rate is displayed in a graphical user interface. An ECG Simulator produces a heartbeat at a certain frequency that can be measured.

  12. ECG Monitor Schematics

  13. Results and Difficulties • Difficulties: • One of the biggest difficulties was receiving data in LabVIEW through a serial port. • Learning the programming language, PBASIC, was simple. However, interfacing it with LabVIEW was more difficult. • Lack of equipment prevented the display of the simulated heartbeat in LabVIEW. However, the ECG amplifier was tested using the Oscilloscope and proved successful. • Results: • I successfully displayed the BPM in LabVIEW using serial communications. • The ECG Amplifier successfully amplified the simulated signal. • I programmed the BASIC Stamp II to switch an LED on and off when the input signal was high and low. By analyzing the signal for peaks, one can determine the heart rate of a patient.

  14. Costs

  15. Future Plans over the Summer Display the image in a GUI Research image processing techniques Synchronize a simulated heartbeat with the X-Ray machine BE LAZY!! Implement the LV Heart Monitor With a DAQ X-Ray simulator Research LabVIEW’s Imaging Capabilities

  16. Acknowledgements I would like to thank … Of coarse, my father, for introducing many interesting aspects of his field of expertise. I’d like to thank Dr. Karwowski for this opportunity. Lastly, I would like to Thank everyone in class for your attention. My mother, for putting up with all the electronics and wires covering her house.

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