1. Mobile EKG Sensor Senior Design May0530 ABSTRACT PROJECT REQUIREMENTS The goal of this project is to develop a method of collecting heart rates using Vernier’s EKG sensor with the NI Mobile DAQ. The Mobile DAQ must then communicate with a PDA using the Bluetooth protocol. The data from the sensor will be displayed in a LabVIEW module. INTRODUCTION Problem Statement: Heart rates have always been measured with ECG/EKG equipment that are stationary in medical institutions. It would be of great service to the public if there is a device that would provide similar performance but is portable. Since most medical problems occur away from health institutions, such a device would be beneficial for many situations. Intended Users and Uses: This module has several different applications and could be used by many people. Some possible users are paramedics, lifeguards, or even teachers. It will be used to collect heart rates and produce real time graphs of such data. It will also have its own algorithms to process EKG data. Assumptions: The PDA interface will be clear and easy to use. All necessary EKG data will be displayed in the PDA interface. The manual will explain the proper use of the sensor and the PDA interface. The Mobile DAQ is powered by two AA batteries. Limitations: The Mobile DAQ must stay within Bluetooth range of the PDA. Device is not reliable for use in serious medical operations. User must be able to run LabVIEW module on their PDA. Devices cannot operate outside of the temperature range 0˚ to 50˚ C. Expected End Product: The final product will include the LabVIEW module to display the EKG data as well as the EKG sensor, Mobile DAQ, and all connectivity accessories. Also included will be an in-depth manual on how to use the sensor and the LabVIEW module. Design Objective: Ensure the EKG sensor can take complete and accurate data Ensure the MobileDAQ can read in the EKG sensor’s data Ensure the MobileDAQ can communicate with the PDA Ensure the MobileDAQ can communicate with the PalmOS Ensure the PDA and PalmOS can receive the data Ensure the modules created will put the EKG data into graphical form Ensure the manual is complete and easy to read Functional Requirements: Display Data: The data taken by the EKG sensor should have the capabilities of being displayed graphically on either a Bluetooth PalmOS PDA or a PocketPC 2003 PDA. Portable: The collective end product including the EKG sensor, MobileDAQ, PDA, and laptop should all be portable and functional in any location. Accurate: The end product should be able to take data which is accurate when measuring someone’s heart rate. Communicate Wirelessly: The MobileDAQ should be able to communicate wirelessly (through Bluetooth) with the Bluetooth enable PalmOS PDA or PocketPC 2003 PDA. Constraints Considerations: Distance: A Bluetooth equipped device can only communicate wirelessly with another Bluetooth equipped device if the 2 devices are within a certain range of each other. We will define the end product demonstration maximum range between the MobileDAQ and the PDA to be 10 feet. APPROACH AND CONSIDERATIONS Technology considerations: LabVIEW: LabVIEW is to be used for the algorithms used in processing the data. There are several different versions of LabVIEW, which may have a small effect on the programming section. PDA vs. Laptop: The MobileDAQ can connect wirelessly to either a Bluetooth enabled PDA or a Bluetooth enable laptop. We will look at which is readily available for us to use and test with, which is cheaper, and if either has any certain limiting capabilities. Testing requirements considerations: Location: The location of where we are placing the EKG sensors on the body while doing our testing could affect how the EKG sensor reads the data. As long as the location is kept constant through the testing process, this should not be a problem. Consistency: The data from the EKG sensor needs to work with both the Bluetooth enabled Desktop/Laptop and the PalmOS or PocketPC 2003 PDA. Length of test: We must decide how long we wish to record the data using the EKG sensor. We must also decide what length of time is appropriate. Other Resources ItemsCost Hardware: Bluetooth Enabled PocketPC$399/Donated PalmOS PDA$399/Donated EKG Sensor$149/Donated Mobile DAQN/A/Donated Software: PocketPC 2003Inc./Donated PalmOSInc./Donated LabVIEW FDSISU/Donated LabVIEW PDAInc./Donated Other: Poster and Printing$50 Total$50 Client: National Instruments Corp. Marius Ghercioiu marius.ghercioiu@ni.com Faculty Advisor: Professor Morris Chang Dept. of Electrical & Computer Eng. morris@iastate.edu Matt Goedken Electrical Engineering mattgoe@iastate.edu Dan Hyndman Computer Engineering dhyndman@iastate.edu Amber Vo Electrical Engineering ambervo@iastate.edu Duc Vu Electrical Engineering dhvu@iastate.edu RESOURCES SCHEDULE Task #1: Documentation and Planning Task #2: Research Task #3: Development PROJECT INFORMATION SUMMARY This project will prove to be an interesting and challenging task. Successful completion of the project will allow many institutions with low budget to take EKG measurements. Along with a successful end product, members of the team will learn invaluable information regarding LabVIEW development, the Bluetooth protocol, graphing techniques and efficient data processing algorithms. Team Members: