Final Report Example - Electrical and Computer Engineering
Contents
1. TAT Figure 7 31 High level software modules Modulesthe user actively interacts with and sees displayed throughthe GUI CPR Electronic Teaching Assistant Mannequin Final Report cours nine l management hange defau rading schemi 1 E 1 3 q o x ti D Figure 8 32 CPR Electronic Teaching Assistant Mannequin Final Report BED UO155 5 SARS 5 5 3A0U31 ppv juapnis ejep puas pJOMSSEd ep n v 3yum peas is an 10 2 uuo2 seEqe eq 1032auuoo gsn 9sn 9uj jou U3IM S32 1 N9 euise npolN S9 NPOW 9Je 3J0S 9 9 MO Figure 9 33 CPR Electronic Teaching Assistant Mannequin Final Report ERD EISES tne Second breathing 2 Figure 11 34 CPR Electronic Teaching Assistant Mannequin Final Report Appendix 5 Mannequin Figure 12 35 Original artwork used for logo CPR Electronic Teaching Assistant Mannequin Final Report Figure 13 36 CPR Electronic Teaching Assistant Mannequin Final Report Appendix 6 Test Cases Please refer to the CPReTAM_Test_Cases document Appendix 7 User Manual Please refer to the CPR eTAM User Manual document Appendix 8 Mannequin s rear 37 Appendix 9 GUI Log on CPR Electronic Teaching Assistant Mannequin Final Report 382. TPR e TAM File Edit Hep CPR Electronic Teaching Assistant Mannequin Final Report Username Password Create a new account Forgot your password 39 Appendix 10 GUI Tutorial CPR Electronic Teaching Assistant Mannequin Final Report Add course studen and s 40 CPR Electronic Teaching Assistant Mannequin Final Report Appendix 11 GUI How to How to perform CPR Welcome to the tutorial for performing CPR DISCLAIMER Before we get started please keep in mind that this tutorial does not intend to replace formal CPR training Completing this tutorial does not mean that you are certified to perform this procedure but will help in obtaining a certification In the probable case that you are a CPR instructor the purpose of this tutorial is to see how the program will determine whether or not a student 1s performing the steps correctly Images courtesy of the Association of First Aiders For more information please visit www AoFA org j HowTo To continue on to the next part of the tuto you need to go back for some reason clic 42 Would you like to enable the interactive version time you wish to quit the tutorial and retur click Quit Now that we have that out of t What is interactive mode Quit Previous Interactive mode Off 41 CPR Electronic Teaching Assistant Mannequin Final Report Appendix 12 GUI Training Live Training
3. Appendix 3 Gantt chart CPR Electronic Teaching Assistant Mannequin Final Report 29 CPR Electronic Teaching Assistant Mannequin es 1 May 17 4 Sum DE May 3 09 TT WTF TT STW S T TTE T STW ST M F T S N S T TTE T S W ST mm R mmm nc poa m Jose Lombay Age 18 08 ine An 5 09 Mar 22 08 6 08 Feb 22 09 Complete Jan 25 09 Feb E 09 m nm A 0 Lg Le Ww we Ws Lg Ws we Le L L Le 00 00 00 00 00 Mcroprocessor Software Development Hardware Interface Config ation and Report Miroprocessor Software Development Hardware Interface Main Appbeabon Main Ak gen 08 01 Software developenent Hardware interface Training Software development Software development ook Nate CPPETAM Proposal Progress report Design Tutorial How to do y 00 D v ien o Ris FS Sa SE SS 155 5 5 Figure 6 Appendix 4 30 CPR Electronic Teaching Assistant Mannequin Final Report JE2snououygu sy ess awwny y 55 le snouosluxuAG p A Ln seqe ep 2 uuo2 xepui Avanb s13 3weJegyoJessias snouoy9u syuny J9310M uon uuo2 punoisy eg 9seqele 40120440295 2 SEQE1ED Sguuinbaj w04 uon eEl lul aseqejeg JO 1
4. CPR Electronic Teaching Assistant Mannequin Final Report Executive Summary Cardiopulmonary resuscitation CPR is a practice used with unconscious victims of some type of trauma which has caused the heart to stop beating It consists of a series of steps primarily compressing the victim s chest to get the heart to pump blood richly oxygenated throughout the body CPR training is essential in many working environments including jobs ranging from law enforcement to babysitting However if performed incorrectly it can produce adverse effects For this reason the Red Cross provides training programs to certify the people that are capable of performing the procedure In order to obtain the certification the person has to pass a final practical exam which is performed using a CPR mannequin that simulates a person in need of CPR Instructors want to be sure that the steps are learned correctly since what they learn may be used on a live person in the future In order to improve the techniques of teaching this exercise we provide a more realistic way to perform the practical exam Using a mannequin that is monitored and controlled by sensors a microprocessor and computer software in a personal computer the test can be an experience near to real life It doesn t relieve the CPR trainer from the responsibility of evaluating the student but it is helpful in this task The market provides several CPR mannequins CPR Savers amp First Aid Supply
5. University of Puerto Rico Department of Electrical and Computer Engineering Mayag ez Campus CPR Electronic Teaching Assistant Mannequin Final Report May 13 2009 ICOM 5047 Computer Engineering Project Design Course Professors J Fernando Vega Riveros Nayda G Santiago and Manuel Rodr guez EHS team Arelis Perez Pe a Jose A Lombay Gonzalez Juan C Gorritz Garc a Jomar Rosario Mu iz Edvier Cabassa Miranda CPR Electronic Teaching Assistant Mannequin Final Report Table of Contents Sen lu Ee EEN 4 anni nai 6 Oe EE 6 Introd UctiON vocera til elit 7 Design Criteria and Specfications 8 Hardware Specifications vii din anida lada 9 Mann UW 9 Microcontroller m 9 c 9 I 9 Other compo nents ia 9 Software Specifications s s ss setas assai sss s alas asas EEEE 9 Implementation TOO lS cissi aeeaiei erie ola ie 10 RRE in 10 Limitations and Constraints eiat deen 10 hequlfrements na a a eege 11 Recommended Hardware requirements 2333344333 33333 s s 11 Recommended Software requirements 8333434333 333s s s 11 Methods and ap
6. Instructor frank mendoza Course Section Grading Enabled C Disabled feori3645 1 ho d Student Juanma Feliciano Grading Profile Default C Custom Session Information Elapsed time 00 00 00 hh mm ss Live Preview C Enabled Disabled Save results Yes C No START Prev Step STOP 42 CPR Electronic Teaching Assistant Mannequin Final Report Appendix 13 GUI Report Evaluation report for EDFI 3645 070 Below is the evaluation summary for the specified section To view a detailed report of a particular student click his or her name Student name Student number Sem quate Avg al 2 3 4 5 Juanma Feliciano 802 03 1061 N A N A N A N A N A N A Magic Johnson 555 755 5555 N A N A N A N A N A N A Frank Sinatra 569 22 3265 N A N A N A N A N A N A Jerry Seinfeld 456 03 4568 79 100 96 100 20 N A George Costanza 456 40 5879 N A N A N A N A N A N A Elaine Benes 123 45 6789 N A N A N A N A N A N A Cosmo Kramer 987 65 4321 N A N A N A N A N A N A Click on a student s name to jump to his or her detailed report Juanma Feliciano saek to top No procedures performed yeti
7. 00 200 00 150 00 100 00 CPR Electronic Teaching Assistant Mannequin Final Report Component Amount Mannequin 94 45 Push Buttons 20 08 Sound Detector 25 59 Cable jumpers 10 46 Case 6 20 Rocker switch 3 73 Batteries 3 20 Xbee Sound Sensor 160 78 Little Mike Outfit 12 70 Miscellaneous 50 31 Total 387 50 Table 1 387 50 Estimated Cost Total Cost Figure 4 21 CPR Electronic Teaching Assistant Mannequin Final Report Legal Considerations The whole purpose of this project is to facilitate the trainer s task in giving and evaluating CPR training sessions to students it is not intended that this product replace the RED CROSS CPR certification the trainers or any other methods for teaching CPR the use of this product does not imply that you are certified to give CPR In order for this product to be usable in the United States all the radio and telecommunications components have to be FCC compliant The component list of the project has been revised to have FCC compliant Zigbee modules Conclusion As a group our methods and approach to solve problems were good We maintain during all the development phases the main objectives of our project and when problems arise as a group we tried to find a practical and good solution as engineers An example of this was the moment that the selection for the sensors came Was difficult to select a sensor to simulate the
8. conscience checking after a long debate of how to solve it we implement an idea that was accepted by the entire group So as a conclusion our project was successful and it met with our expectations in part of the way and methods we used our organization and attachments to the Gantt chart and time schedule The technical aspect of project was well thought out and implemented From the beginning the plan was to have two software developers two hardware developers and one member to interface the two This resulted in a very efficient development process where two to five tasks could be under development concurrently one task in software one in hardware or each developer working on one specific task The development of the project was divided into three phases where the main concepts were incorporated into the first phase allowing for easier implementation in the following phases The interactive how to allowed for the serial communication with the mannequin which also introduced multi threading into the project Since the basic principles were touched in phase one phase two being the most difficult went more smoothly than expected There were several small bugs that were preventing the program from working as proposed but team based testing as well as documented tests provided fairly quick fixes 22 CPR Electronic Teaching Assistant Mannequin Final Report Economically our group stayed on track The resources used did not exceed t
9. offers a variety of CPR mannequin trainers each with different features The Ambu CPR Pal Training Mannequin also has a first aid kit and has a patented hygienic system that protects students and makes internal cleaning unnecessary Some of the features that the mannequins have are that the airways open when the CPR mannequin s head is correctly positioned and the stomach inflation is indicated by a whistling sound MSR Israel Center of Medical Simulation provides a CPR mannequin that is used in adult CPR training Some features the mannequin has are natural airway obstruction carotid pulse simulation realistic chest compliance for chest compressions and it allows head tilt lift These features are basically the most relevant that companies offer in mannequin trainers CPR Electronic Teaching Assistant Mannequin is more than that The trainers that use CPR e TAM will have an effective and accurate assistant as well as a complete grading system for each student when they take a CPR test The only mannequin we were able to find that connects to a computer AmbuMan uses a USB connection and is able to retrieve data sent from the mannequin which by itself is realistic however gives no visual or audible feedback Our mannequin apart from having a wireless connection for better portability is specialized for universities or other teaching institutions rather CPR Electronic Teaching Assistant Mannequin Final Report than strictly for certificat
10. to be usable in the United States all the radio and telecommunications components have to be FCC compliant The component list of the project has been revised to have FCC compliant Zigbee modules After an evaluation of possible environmental issues due to the design and creation of this project we agree that there are no issues besides the disposal of the mannequin with the sensors In this case it is considered the responsibility of the person who bought the mannequin to dispose it in a green way We had to do some changes during the development of our system due to limited resources and problems with some of the components used Initially we intended to use a pressure sensor where we could approximate the amount of air provided by the student when providing breaths at the training session but the pressure sensor was not working consistently We solved that problem by utilizing a sound detector to detect the air flowing but as a trade off we cannot measure the pressure of the breathing This solution allowed us to simplify our circuit since we used the same sound detector for the consciousness check at the mannequin Another problem encountered while the creation of our system was related with the force sensor At first we thought that by placing the sensor on the chest of the mannequin would be enough to measure the force of the compression but given to the structure of the spring utilized by the 18 CPR Electronic Teaching Ass
11. Project Management chat 12 Figure 3 T am IEC A id e dida 16 Figure 4 Budget analysis ENEE 20 Figure 5 Hardware schemati EEN 27 Figure 6 Gantt chart ur i ee a ERE ass e Hee EE ta 28 Figure 7 UML sequence diagram for Database connection eese eene nennen nnne nnn nnn 29 Figure 8 High level software architecture EE 30 Figure 9 Low level software architecture eene tn nnne ratas cnn anna narrar nin 3333 31 Figure 10 ER DIiagF ar contr e odias 32 Figure 11 ER Diagram continent AE 33 Figure 12 CPR eTAM manpeguin EE 34 Figure 13 Logo source Image nettes et eter een EErEE FERNER EE s sil 35 Figure dE ae In RT 35 Figure 15 GUI Screenshots daa 36 40 List of Tables Table T Actual COSE etree Lei 20 Table 2 Initial Costa 26 CPR Electronic Teaching Assistant Mannequin Final Report Introduction Our final report presents how EHS group developed an electronic teaching assistant mannequin in order to help instructors and professors teach CPR techniques We present here a project that is very different from similar products on the market thanks to the comprehensive monitoring of all steps that are necessary in order to provide correct CPR assistance The graphical user interface GUI developed was designed to easily manage groups and grades in a classroom in any institution We also made the product as similar as possibl
12. e to an unmodified CPR mannequin even though ours contains several sensors We were focused on completing the objectives that were mentioned in the project proposal Because of this the GUI has been designed to include classroom management such as the option to manage students sections and courses It has a tutorial session to explain to the user how to use the software and the integration with the mannequin Also it has the training session to perform the test or practice the CPR procedure The program is able to receive process and display the information coming in from the sensors in an easy to understand manner in real time In the hardware area a CPR mannequin was modified in order to allow us to place several sensors to monitor which action was performed while performing CPR Using the 8051F340 microprocessor we pull the data from the sensors and transmit it to the PC using the UART The PC receives the data using the serial port and a TTL232 cable Using Zigbee technology the microprocessor transmits to the PC s serial port wireless In order to provide a quality system we used some testing techniques that have been documented appendix Stress testing had to be done to the placement of the sensors in order to test the strength of them The budget of the project and hours worked by the resources of the project are similar to the estimation presented in the proposal The report concludes with the deliverable of the fully funct
13. eature set including mouth to nose rescue breathing adjustable chest stiffness realistic anatomy and more The Ambu Man 5 torso and full body also have the ability to interact with a computer interface through a software application Similar to our application an instructor can view real time data from the mannequin however with our system every step in the CPR procedure is monitored whereas in the Ambu software evaluated a limited number of steps Our software also allows the instructor to assign a grading system to deduct a specific number of points for each step in the process and saves the information not for just one session as does the Ambu software but for the past five sessions Budget Analysis The project has total cost 387 50 Although we bought materials that are not estimated in the proposal we do not exceed the stipulated amount presented in the proposal The calculated amount to spend for hardware components was 394 76 We had to buy materials that are not detailed and calculated in the hardware budget To maintain the budget low and balanced we acquire the microcontroller donated from Silicon labs Also we receive the refund of the mannequin shipping for the amount of 66 50 lowering the budget amount The cost of hardware components are detailed in the following table 20 This chart shows the total cost of the hardware components and the cost estimated in the proposal 400 00 350 00 300 00 250
14. g Assistant Mannequin Final Report Also in order to determine consciousness there cannot be much ambient sound because the system will detect it as the user trying to determine consciousness Also the mannequin cannot be move randomly too much because of the box that is located in the back of the mannequin If the product was constructed professionally in a production line this problem could be solved easily During the design and implementation process our system was affected because of how we were going to monitor all aspects of the CPR process without complicating the steps of it For example in the selection of the sensors we were using we took into consideration a lot of factors size sensor interfacing time response and some others A major limitation is the fact that certain steps require a certain timeframe to complete for example when lifting the head the student is supposed to look listen and feel if the victim is breathing Since the sequence is hardwired into the system we decided to ignore any sensor inputs after the student does the required action until the required time passed due to erroneous readings from the software which could confuse the student Another limitation is that we needed to place push buttons in order to activate some of the sensors at the desired moment on the CPR process so this limitation was our approach to solve the problem that the software was not able to decide which sensor was the one in
15. he estimated budget even though some issues arose concerning the mannequin The construction of a replacement mannequin for phase one was done using cheap materials with the knowledge that we only needed something temporary until the real mannequin arrived Based on the feedback of our client he forecast a good market future if this product is commercialized so as part of our future work will be talk to companies of CPR mannequins and first aid to negotiate the production of our product We believe our product has no ethical issues but a disclaimer is provide in the user s manual as apart part of our responsibility we warn the users that our product does not intend to substitute the advice and teaching of a certified CPR instructor Also custom grading schemes are provided to allow flexibility to the user the way he or she chooses to use it is out of our control From a legal perspective the system complies with the FCC policy of product interference because our product contains a wireless module Also disclaimers have been produced concerning legal issues that could arise The software application clearly states that use of the program does not imply certification in the CPR procedure Other legal aspects regarding CPR are the responsibility of the user Regarding environmental issues after a careful analysis of the materials used we don t believe that there are any materials that are hazardous to the environment The hardware aspect does ho
16. installed Software Specifications Our software for the CPR eTAM mannequin was developed using the CH programming language using Visual Studio 2008 Express Edition For more detailed software architecture refer to the appendix in part number five When we began to design our project our first objective was to make an electronic CPR mannequin as close as possible to reality For this reason we did not want to alter the CPR process sequence in any form possible That was our primary objective and the design criterion was always based on that decision The mannequin and the software needed to be easy for a professor and a student to use We also designed the software taking into consideration universities and institutions of learning criteria for courses and students managing We also wanted to make a mannequin that no 9 CPR Electronic Teaching Assistant Mannequin Final Report matter the number of sensors it had inserted it would look as close as possible to a person so the aesthetics was also a part of the design criteria we took into consideration The placement and configuration of the sensors was done taking into consideration the fact that we wanted to minimize any deviations from the true CPR procedure as much as we can which meant that we could not complicate the interaction with the mannequin because that would make the system less realistic This situation however was unavoidable with the choice of microcontroller and one s
17. ion which is where the custom grading profiles differ from the AmbuMan software and considering materials and development costs is much more affordable an important factor for public institutions To help in the task of preparing better trained people in CPR we accomplished the following objectives created a tool to facilitate the job of the instructors by electronically monitoring students practicing CPR on a training mannequin We provide hardware and software that identifies when a student is not following the correct CPR procedure by monitoring chest compressions the victim s breathing and pulse and the position of the victim s head using specialized software to configure the mannequin and display the data provided from the real time situation in the mannequin We adapted a mannequin by placing several push button switches that provide information such as if the student verified the pulse of the mannequin and if the chest compression is adequate A sound detector is being used to identify when air provided by the learner and to detect if the learner checks the consciousness LED and buzzers are indicators of the status of the cable connections of the mannequin if it has been resuscitated if it s still unconscious or if the learner failed the CPR process We used a micro controller to collect all the data from the different sensors and wirelessly transmit the information to a computer where the software application is running showing the statu
18. ional system test report user manual and this report CPR Electronic Teaching Assistant Mannequin Final Report Design Criteria and Specifications Output 8051 Micro controller Hardware communication Zigbee Module Software communication Zigbee module UsSBtCtonnector DECoOnnector cls Figure 1 CPR Electronic Teaching Assistant Mannequin Final Report Hardware Specifications Mannequin We bought a CPR Prompt TMAN1 Adult Child CPR training mannequin We used the Adult mannequin for our prototype version of the product Microcontroller We used the 8051F340 development kit from Silabs Company This microcontroller has 2 ADC from which we used both It also has 4 ports from which we use 2 of them For a more detailed description of the hardware configuration please make reference to the schematic at the Appendix Sensors We installed in the mannequin the following sensors e Sound detector sensor for consciences check e Pressure sensor in order to verify the rescue breathing e Force sensor in order to see if the student gives the chest compressions Power The power we used to turn on the mannequin comes from 4 AA batteries that are inside the hardware box located in the back of the mannequin The voltage is 6 V Other components The mannequin also contains a wireless Zigbee module that allows the wireless communication both ways between the mannequin and the computer were the software is
19. ist was created with the correct steps of the CPR procedure and the serial port monitor would compare each input with the current position in the sequence Every second the worker would receive a numerical percentage of progress where the interface was updated We used this method to our benefit sending information about what the user entered which picture needed to be placed as the visual representation and whether or not the input entered was correct or not The major issue in this phase was the synchronization of the worker thread with the application thread Many times the worker thread would work faster than the main thread resulting in erroneous sensor data processing The issue was solved taking the serial data reader outside of the DoWork method of the worker Phase 3 Report and configuration The report is an important feature of our product It provides the results of the students of each session divided by sections and courses This software has several options to configure such as the port and the evaluation grading scheme In this phase we also set up the wireless communication between the microprocessor and the computer The main issues in this phase were the manipulation and preparation of the data in order to be saved in the database The structure of the database we were using had to be modified to include session and cycle data which we decided to change due to the design of the report The report displays a table of all
20. istant Mannequin Final Report mannequin we were not able to do so We fixed that by placing a small solid platform over the sensor which directed most of the force produced by the compression to the sensor We also encountered some problems with the application Initially we were instantiating every form when we were calling it That caused the program to slow down and use a lot of resources every time a new window was created We fixed that by replacing all the methods that initialized the forms by methods that hid and showed the forms instead of recreating them Market overview As mentioned previously the purpose of this system is to monitor and evaluate CPR sessions as well as maintain an up to date database with the results of either a student or a group of students The current user is a physical education professor who has been working with the team throughout the development of the system He gives a first aid course where the teaching of CPR is a requisite Branching off from the current user a single CPR instructor potential users include entire institutions both public and private The procedure has been confirmed as being correct by the current user and therefore could be used as a tool for helping official CPR training facilities as well Basically any instructor who teaches or will teach CPR anywhere can be considered as a potential user In order to use the full functionality of the system however the user will need acce
21. king for more stable sensor outputs and better simulation of reality We want to place a sound detector with better accuracy in the output a more reliable detector a microprocessor with more ADC s would also help to improve the hardware The hardware could also provide a better more realistic experience using tactile sensors instead of push buttons 24 CPR Electronic Teaching Assistant Mannequin Final Report Acknowledgements Professor Frank Mendoza UPR Mayaguez for his continual support throughout the development cycle Zygote Media Group Inc for providing the initial image that was used in the creation of the official EHS logo and splash screen Image copyright 2007 Silicon labs Silabs for being generous enough to donate four microprocessor development boards just in case Professors Nayda Santiago Manuel Rodriguez and Fernando Vega for their professional guidance All the teaching assistants for their ideas opinions and help Jose Rodriguez aka Dices for his suggestion to use a sound detector instead of a pressure sensor for the rescue breaths and other general help Jose Bermejo for providing the Pass and Fail audio clips for the end of a graded CPR session To our families friends and significant others who had to suffer our complaints throughout the development of the system 25 CPR Electronic Teaching Assistant Mannequin Final Report References 1 CPR Savers CPR manikins CPR man
22. lectronic Teaching Assistant Mannequin Juan Gorritz Software Engineer Final Report Jomar Rosario PM Software Engineer Jose Lombay Hardware Engineer Figure 3 Arelis Perez Hardware Engineer We divided the project into three phases and each phase into three main tasks which are Software Hardware and Microprocessor Subtasks were assigned to the resources of each department Is also important to mention that all tasks were completed by the specified end date Please refer to the Gantt chart in the appendix Change requests There were very few changes to the proposed plan The following are listed below e Database file encryption Read write a configuration file e Pressure sensor changed to a sound detector 17 CPR Electronic Teaching Assistant Mannequin Final Report The change request forms can be found separately Other activities In order to maintain a positive work environment we used some group time to socialize outside of work Activities such as dinners video games and desserts were share Market overview Results and Discussion The whole purpose of this project is to facilitate the trainer s task in giving and evaluating CPR training sessions to students it is not intended that this product replace the RED CROSS CPR certification the trainers or any other methods for teaching CPR the use of this product does not imply that you are certified to give CPR In order for this product
23. nequins for basic and advanced training Retrieved May 11 2009 from http www cpr savers com Industrials Cpr 20prod cpr 20manikins cpr manikins html 2 CPR Savers Save on Prestan CPR amp AED training manikins with CPR Rate Monitor Retrieved May 11 2009 from http www cpr savers com Industrials Cpr 20prod cpr 20manikins prestan cpr aed training manikins with cpr rate monitor html 3 CPR Savers Basic Buddy CPR manikins Basic Buddy CPR manikins Retrieved May 11 2009 from http www cpr savers com Industrials Cpr 20prod cpr 20manikins lifeform cpr manikins html 4 CPR Savers CPR Prompt manikins Retrieved May 11 2009 from http www cpr savers com Industrials Cpr9620prod cpr9620manikins cpr prompt manikins html 5 CPR Savers CPR manikins amp CPR training manikins Ambu man Retrieved May 11 2009 from http www cpr savers com Industrials Cpr 20prod cpr 20manikins tambu cpr mankins html 268001 26 CPR Electronic Teaching Assistant Mannequin Final Report Appendix Appendix 1 Basic table of the initial cost presented at the proposal Sound Detector Cable jumpers Miscellaneous 188 78 Table 2 27 CPR Electronic Teaching Assistant Mannequin Final Report Appendix 2 Hardware schematic Nose push buttons 3v 3v 43v 43v Ear Push Buttons o 3v Pulse Push B ttons Head position Pulse simulator switch 3 Ka ak o 48998996240 y 77 Figure 5 28
24. proach to the solution 13 Project Management neeaae aea a eaaa aei A eads Sia eaat 13 HIMMEL 00 000 0070000700 0000 ates 13 RESQUICOS isa 13 A RN 14 Phases Role ipo ec 14 Phase 1 Howto Tutorial ii tadas 14 Phase Maite ta esent M d i 14 Phase 3 Report and configuration 15 I M 16 CPR Electronic Teaching Assistant Mannequin Final Report UNIT TOS E Sii atea 16 Stress UI IM D EE 16 ARO EA e UA o cexeos siaahtessacetessmauet 16 UR Tun BEE 16 A 16 FALSE GIN s ENE bilin 17 IL cop 17 Change AAA on A pee ad REES EE AER ig 17 Other activities EE 18 Results and DiSCUSSIOD 2 aaa La YARALAR lada ida dano dee 18 Market VE Wisin des 19 Budget Anal ySis ici A iaa 20 Legal 18 1 5 RERE ora EEEa ERSE 22 ees a 22 Future WORK e E 24 SOME lb ELLE 24 Lies irem ER 24 AckhowledBSmebhts eec ioo tO ess S Aerei tec p EN 25 Mi p E 26 AD DCI e 2200000000 00000 00 0 r 0 00 27
25. s of the procedure being carried out The aforementioned software application was developed by us as well We developed a graphical user interface GUI with useful information about the procedure such as the time duration of the session and if there have been any mistakes during the session The application has a way to create a report of a training session We used a relational database to store all the information being generated for future reference It also has a feature to configure how many times the CPR procedure would have to be repeated to complete the session successfully All this was deployed following the specifications established in the WBS and budget sections of this document Even though we wanted to make our system as real as possible we know that it is not completely real due to some steps that are not possible to monitor We don t simulate the pulse throughout the whole body Also we don t simulate the breathing of the mannequin after it has been revived The mannequin doesn t have the ability to evaluate the student without any type of supervision The budget of the project was under the estimated budget at the time of the proposal We bought all the components and miscellaneous materials needed to complete our project that we didn t presented at the proposal Appendix 1 CPR Electronic Teaching Assistant Mannequin Final Report List of Figures Figurel System design architecture ci adenda esas ss 8 Figure 2
26. ss to a server where the database can be stored Competition in the market includes several varieties of CPR mannequins including the Prestan CPR mannequin the Lifeform Basic Buddy mannequin CPR Prompt s Basic Life Support mannequin the mannequin used in our system Ambu s Advanced and Basic Life Support CPR mannequin and a few others 1 The Prestan CPR mannequin 2 features optional real time feedback regarding the rate of chest compressions as well as a clicker mechanism in the chest which informs the user if the compressions are with the right force Our system does have the chest compression clicker but does not have a real time compression rate monitor however the software application measures the time of each procedure which can be cross referenced with how much time it should take two minutes for five cycles of CPR 19 CPR Electronic Teaching Assistant Mannequin Final Report The Lifeform Basic Buddy mannequin 3 is lightweight and portable and very economical Our modified mannequin has the same features as this mannequin as well as the additional clicker in the chest to offer feedback of chest compression force CPR Prompt s Basic Life Support mannequin 4 is the one chosen for modification by us It provides the force feedback for chest compressions through the clicker mechanism and provided an easy environment for adding the sensors for monitoring Ambu offers a lifelike torso or full body mannequin with a rich f
27. t Mannequin Final Report software team Arelis Perez and Jos Lombay were in hardware team Jomar Rosario was the project manager and the liaison between software and hardware teams Cost The budget was similar to the one that was proposed Please refer to the budget analysis section Phases of CPReTAM Phase 1 How to Tutorial This phase was introductive We developed software and hardware to demonstrate our design The deliverable for this part was the tutorial session of the software three of the sensors interfacing with the microprocessor and the microprocessor with the computer The tutorial involves how to use the software the configurations and the application of the CPR to the mannequin The general design of the application was done by one of the software developers and accepted by the rest of the team Once the design was established the creation of each form was done mostly undeveloped to be done in the next phases The main task for this phase was the interactive how to for performing CPR which consisted of a series of steps and an option to carry out those steps on the mannequin receiving feedback from the application if they were done correctly One of the main issues in this phase was maintaining a responsive user interface while the program was waiting for an input from the mannequin This was solved using one of C s threading operations which would allow the user interface to be updated while another
28. tep does require extra interaction Environmental factors in the design were also taken into consideration For example we tried to select sensors and parts that do not contain harmful materials to the environment and make the disposal of the mannequin as easy as possible Legal considerations were also analyzed in order to make a good design We comply with the FCC interference policy and we provided a notice regarding CPR issues clarifying to the user that use of the product does not imply CPR certification Implementation Tools Visual Studio express edition 2008 Testing Tools We used the NUnit Tool to make testing of software modules in order to see if they worked or not and fix them Also test cases were done in order prove software and hardware integrity under normal or hard circumstances The documented test cases can be found separately Limitations and Constraints As with other systems ours has limitations related to budget time and other constraints For example our product has some limitations regarding the monitoring of the CPR steps The software cannot evaluate if the compressions were made with the correct or incorrect angle or if the student bent the elbows when he gave the compressions or if the student verified the breathing for the 5 seconds Therefore up to this point instructor supervision is needed in order to perform a complete evaluation of the process in detail 10 CPR Electronic Teachin
29. the students in the chosen section as well as the grades and average they have for the past five sessions they have completed The report was generated 15 CPR Electronic Teaching Assistant Mannequin Final Report as an HTML file in the program directory The manipulation of the HTML code was done using CH which would add data dynamically as it received the information from the database Please refer to the appendix where you can view the full Gantt chart Testing Unit Testing To get verified and quality software we use techniques like unit testing Using Visual Studio to develop the code and the NUnit Framework we performed several unit test to the CPRETAM source code Please refer to the CPRETAM Test Procedure attached in the appendix Stress Testing Stress testing was applied to the mannequin to see if the sensor placement was strong and in the right position Test Cases We developed 12 test cases to test the quality and validate the CPRETAM software This also helps us to identify bugs to fix This document has proof of every test that was performed to each part of the CPR eTAM software even the communication with the hardware was documented Team Resources For the development of CPR e TAM EHS Group has three Level Software Engineers and two Level Hardware Engineers The work of the project began on January 14 2009 and finishes on May 14 2009 16 Hierarchy Edvier Cabassa Software Engineer Tasks CPR E
30. time consuming operation was taking place Phase 2 Training This is the main part of the project It allows the professor to view in real time what the student is doing in real time It involves a continuous pulling of the sensor s data and processing of it The deliverable of this phase was the training software and the mannequin with all the sensors placed Also the database classes and setup had to be done in preperation for the next phase 14 CPR Electronic Teaching Assistant Mannequin Final Report The approach to solving this problem began with the knowledge that in order to maintain the responsive user interface this section would have to be multithreaded The process however was going to need an option to be stopped so we couldn t use the same approach used for the phase one tutorial The solution came in the form of one of C s threading objects the Background Worker class This class allowed for a simple way of running the time consuming process pulling sensor data reporting back to the user interface for updating information and running some method when the process was completed The Background Worker allowed us to run the training session maintaining a responsive interface the new issue was to process the CPR procedure correctly taking into consideration the grading schemes and a visual representation of what the system was waiting for The worker class allowed us to solve all of these issues at once An Array L
31. use It was difficult to find solutions to these problems but we surpassed all of them always having in mind our main objective Requirements Recommended Hardware requirements 4x AA batteries 120V 60Hz wall outlet Computer with USB port Connect the cables Each cable is identified with a color that is matched with its paired connection socket Recommended Software requirements Windows XP 2 Gb of ram 20 Mb hard drive 11 CPR Electronic Teaching Assistant Mannequin Final Report Server with MySQL support 12 CPR Electronic Teaching Assistant Mannequin Final Report Methods and approach to the solution Project Management Time The time of the project was in phase according to Gantt chart presented in the proposal We extend the second phase one day looking for more quality in the software Instead of that the third phase finish 2 days earlier so we dedicate these days to testing No extra hours were needed to complete the project inclusive vacations was given in holy week For more information refer to the appendix 30 15 10 Hour Week Figure 2 Resources The resources of the project were the same of the start Three software engineers and two hardware engineers was the division of the resources They dedicate the estipulate hours by week to the project or if not they make it later Juan Gorritz and Edvier Cabassa were in the 13 CPR Electronic Teaching Assistan
32. wever utilize plastic and foam therefore methods for recycling should be researched prior to disposing of the mannequin In a social aspect the system was designed to be easily available and usable by the general population Users young and old should be able to use the program without any difficulty All possible problems the user could experience are documented in the user manual in case he or she needs help with any specific function Also the hardwired tutorials help the user learn the basic functions of the software application The hardware team assured that mounting the mannequin correctly was made as simple as possible using colored tabs to indicate connections 23 CPR Electronic Teaching Assistant Mannequin Final Report Future Work CRP eTAM is a project that can be improved in several ways Adding some functionality in software and changing others in hardware can result in a better product which is what we are looking for Software For the CPR eTAM software we expect to release some patches that will add functionality to the program One thing that our customer asked us is for an evaluation sheet to allow the instructor to make check hand position bent elbows etc Another thing that we are prepared to implement in the future is the mannequin recognition and the connection wizard This will provide a way to connect the software to several mannequins simultaneously Hardware Many improvements can be done in this area loo
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