15 February 2009 Patrick Leung School of Engineering Science
Contents
1. cccccccseesceeseeeseeseenseeues 2 Glossary RFID Radio Frequency Identification LCD Liquid Crystal Display AC Alternating Current GUI Graphical User Interface iii Page goloFish Technologies 1 Introduction The D Tech system is an item and task reminding device which can be installed at the user s front door Once items have been tagged with our SmartTags and entered into the system s database the system will be able to scan and detect whether or not specific items are missing as a person passes their front door If there is a mismatch between the list of items the user wanted to bring and the list of items that are on the user the system will notify the user by displaying the missing objects on a touch based liquid crystal display LCD In addition the user can also specify tasks that they wish to be reminded of when they are leaving their home 1 1 Scope This document details the high level requirements of the D Tech system It provides a detailed description of the required functionality for a proof of concept model and partially describes the required functionality for the production model The listed requirements will guide design phases and will be highlighted in future design documentation 1 2 Intended Audience This document is to be used by all members of goldFish Technologies The team lead will refer to it in order to track the group s progress and the design engineers can use the spec2. goloFish Technologies 15 February 2009 Patrick Leung School of Engineering Science Simon Fraser University Burnaby BC V5A 1S6 Re ENSC 440 Functional Specifications for the De Tech Reminding System Dear Professor Leung The document included outlines the functional specifications for goldFish Technologies D Tech Reminding System We are designing and implementing a device that will scan a person as they are leaving their home check for important items that they have forgotten to bring with them and alert them of these items Our functional specifications document describes the high level functional requirements for our device The specified requirements will also be used by the members of the team to direct the design development and testing efforts of our project goldFish Technologies is built of five motivated and skilled fifth year engineering science undergraduates Owen Lin Sami Nguyen Sharika Salim Jeremy So and Christopher Yao If you have any questions or concerns please feel free to contact us at ensc goldfish sfu ca Sincerely Jha Jek Sharika Salim Chief Executive Officer goldFish Technologies oldFish Technologies Functional Specifications RFID Based Reminder System Project Team Sharika Salim Sami Nguyen Jeremy So Chris fae Owen Lin Contact Person Sharika Salim ensc goldtish stu ca Submitted to Mr Patrick Leung Mr Steve Whitmore Issue Date F
3. Requirements ssessesesseserserresersessesresersersersersesersersererserseeserserseseeseeseeeee 4 24 Physical Reguireme nts sorsirrnrnriitiher itrenn ann reaa EA NEE ETETE NEER 4 2 5 Electrical Requirements ccc tcsataducieetacetaenevadaiauacsacasdetataauewssadaleemiacetieateneaeaenenteaea 4 2 5 1 Data Transfer Requirements sisccisissocsisicsctcacdesedcdeancesnsdeasdewandscnaceuvaras edsaseadevaisnaavacacasanncneedan 4 2 5 2 Power Requirements ssessessesseesressrrssessresresrrsseoseosresresereereoseesresreeseoseesreeressreeseeseesnee 4 2 0 Environmental REQUITEIMENTS saririsa aiaia i 4 FT O E a E E 5 2 8 Reliability and Durability ccccccecceseceececececcecuseeecaeeuseseecueeseceeueeteseceeeueeceeeeeess 5 2 9 Safety Requirements esssessesesssesreseseserresereesereeserersesererseserseseeseserseserseseseesesersesee 5 2 10 Performance ReguirementS sirrierirrrrreetrnrra rnar o e E E 5 2 11 Usability Requirements sessesessssesssseersrseserreserresereeserreseserersereeserersesersesereeseseesesee 5 DAD UI FUNCIONS eee I 6 3 Anywhere Access Form eossssesenssrerssressrersrrrosrrrsrrersrrresrersrersreresereosreesrersrerosrersrersseeree 6 3 1 General Requirements sssssessesesseserseserserserserersersersersesersersersereereeseeserseseeseeseesee 6 e QUAI E E E E E A 7 3 3 Reliability and Durability sesessesessesesessssesesesersesersesereeserereesereesereeseseeseseesesereesesee 7 3 4 Performanc
4. Tech System Door Unit which takes care of the data processing and output display functionalities Essentially all items can be added at the central unit However in order to increase usability items can also be added through an internet form Thus our product integrates the user s own personal computer into the system s functional design 2 Page goloFish Technologies The functionality of each unit is as described 1 The Personal Computer and online form The Anywhere Access Form e As it might become inconvenient for users to have to go to the door every time they want to add a new reminder item a personal computer can be used instead Additionally the user can specify the dates that reminders need to occur on In this case the central unit will access a web server in order to download information from the server database and acquire the list of added items 2 The RFID Module The Detect and Scan Module e The RFID module is always on stand by until a user walks by When the user walks by the door a sensor activates the module to scan the user to record all items that are on the person The detected items are then sent to the central unit for comparison and display 3 The Central Unit The D Tech System Door Unit e The central unit is used to determine the identity of the user and display reminders pertaining to this user This component compares information from the item reminder list and the detected SmartTag l
5. of touch screen Observe the intensity and clarity of the touch screen LCD display Determine the resolution of the touch screen with respect to graphical user interface GUI button size 10 Page goloFish Technologies Performance of Detect and Scan Unit Determine the scanning range of RFID scanner Determine the accuracy and sensitivity of the detection sensor Usability Determine whether the navigation of the GUI is intuitive enough for users Determine the ease of use for accessing and editing data in the database Determine the ease of use for data input to the Anywhere Access Form Safety Determine whether the RFID scanner will interrupt other radio frequency dependent appliances Determine whether the RFID scanner signal complies with Canadian Radio Frequency Interference Regulations Guide Power consumption Measure the power consumption of the Detect and Scan unit Measure the power consumption of the D Tech System Door Unit Efficiency Determine efficiency by measuring the time delay from input items scanned to preliminary output write to database Determine efficiency by measuring the time delay from the preliminary output items on database to output notification to user Reliability Determination of software reliability by measuring the probability of error Measure the maximum length of usage 11 Page goldFish Technologies 9 Conclusi
6. system shall be wall mountable R10 II The system shall be compact and attractive R11 Il The system shall have a speaker system with adjustable volume to alert the user of forgotten items R12 III The system shall be as compact as possible R13 IIl The system shall be enclosed in a hard case 2 5 Electrical Requirements 2 5 1 Data Transfer Requirements R14 l Internet access shall be provided through an Ethernet cable R15 ll Detect and Scan data shall be transferred to the Central unit via a physical cable R16 IIl Internet access shall be wireless 2 5 2 Power Requirements R17 ll Power to the system shall be provided through an alternating current AC wall plug 110V 60Hz R18 Il Power consumption shall be as low as possible 2 6 Environmental Requirements R19 Il The system will only be operated indoors R20 II The system will be operable in relative humidity up to 90 R21 Il The system will be operable in temperatures ranging from 20 40 C R22 ll The system will produce virtually no noise while active or inactive except for the audio system that alerts the user of missing items 4 Page goldFish Technologies 2 7 Standards R23 Il The system will comply with the following standard IEC 62369 1 1 2 8 Reliability and Durability R24 Il The system should last a minimum of 5 years R25 IIl The system shall not overheat with continuous usage twenty four hours a day
7. The visual display shall have sufficient resolution to clearly display database information and pictures R74 IIl The user interface shall allow users to select various graphical customizations R75 IIl The graphical user interface shall provide animations to promote user interactions 4 3 Usability Requirements R76 ll The user interface s functions should be intuitive and easy to use requiring minimal user manual usage R77 ll The user interface should have large button for navigation and selection R78 II The graphical user interface should contain intuitive button placement for easy navigation 4 4 Reliability Requirements R79 ll The user interface should not have fatal errors resulting in system crashes R80 II The user interface should be fool proof and prevent any unsuitable inputs that might cause system errors R81 III The user interface should have instant access to the system database when information is requested by user 8 Page goldFish Technologies 5 The Detect and Scan Unit This unit will be used to detect and scan whenever a person walks within the vicinity of the door where the central unit is placed This system will also be able to distinguish between a person leaving their home and a person just doing tasks in the vicinity of the doorway In this way power can be conserved as the power requirement of the detection component is much less than that of the scanning component In additio
8. ased user interactions for task and item input In addition to these main components a standalone accessory to the D Tech system called the Anywhere Access Form gives users an alternative method for item and task input to the D Tech system database It is a web based application that can be accessed over the internet by the user s own computer This document presents the functional specifications of the D Tech reminder system While our main focus is to outline the functional specifications of the proof of concept prototype we will also mention some future functionality that would possibility be added to the final commercial product i Page goloFish Technologies Table of Contents Executive SUMIMALY cccccscccssccencceuccencceucceuseeucteuctsusteesteusteeeeeneceeeeeceeeeeeceeneeeceeeeeeneeeees i List of Figures and Glossary cccccccssseccceeccccescsceuecseeeeeseeneeeeeuseseuecseeeuseseueeeseueceteueseseees iii 1 TAME case ase estas cst nae aien ii a ia iR iiA ike eiii 1 i aa Is o 83 E E ee AEE A E eo E EE E E eee 1 1 2 Intended PUNO CO seriiriresevirresisisnornsrn ronnen E AANDE E 1 DS E EE CAG OU AEAEE A EE E EE E ENE E E E 1 2 System REGUIFGINEGIUS sisiiessatesnscraciecsescasessnencnssanasaleueaseusswesasesaeesaaaeteesanedietadeebiessaceindeaseteese aut 2 21 Understanding CVSS SO senctes desea stosu asenguendyiecauieaivsaeseuinesg AEE EO EEE 2 2 2 System OVerViEW sosis rnar EEEE 2 2 3 General
9. e Requirements essesesssseseseserseseserresereesererserersesereesererseserseseeseseesesesee 7 3 5 Usability Requirements ssesessesesessrsesesesreseserseserseserresesereesereesereeseseesesereeseseesesee 7 Bie EOUN FCO EET E EEEE NA 7 n E e aO E E E 8 4l General ReguUirementS arsusiri eae EO aN 8 AZ Graphical User Interface ssessesesessesrssseserresereesereesererseresresereesereesereeseseeserereesesees 8 43 Usability Re CUI SWC INS es sech co sesaus testes eacccenes stuecatasncacade enado E oaasi 8 AA Reliability REGUIN GIVE INNS occ sasicasucrsscycswrcavcosa vaca sesscdsanadauasnesonseneaviascvbeeweeeuaeeenieacwenss 8 5 The Detect and Scan Unit cc ecccccescccesseccesececenececeeneecaenceeeuececeueceseescessecessuecessneees 9 5 1 General Requirements sssssssssesessrsersesersersrrsesecsersersersesersersersereeseeseeserseseeseeseesee 9 5 2 Reliability ReguirementS sasescssncsssnoscessmssamossncesesanmanrnnssumarenesesmensuiatarecsosucesivedsenassenss 9 5 3 Physical Requirements sessessessesessesersesersersersesseseesersersesersersersereeseeseeserseseeseeseesee 9 6 The Computer System Requirements ccccccsccceseccesccceececeeceeeecseenseeeeceeeeeeeeeseeess 10 7 The Documentatii N arreir ees vse NAE EEE ENE EEEE 10 8 System Test Plaenenn EEEE E ERER 10 g COCUT nE EEE EEEE EE E E 12 10 RelErenC eS erri E EE EE E 13 Hooks List of Figures Figure 1 High Level Functional Block Diagram
10. ebruary 16 2009 Revision 1 O goldFish Technologies Executive Summary The Best Reminder Before Leaving Your Home As most people have experienced the inconvenience of forgetting something important while leaving for school work or even social events the creation of a reminder system that integrates seamlessly into everyday routines would save time and even money The recent advances in communication technology have created various opportunities for innovative designs and solutions Taking advantage of this we at goldFish Technologies are probing various possibilities to create products for the sake of easing the everyday lives of our customers Our invention D Tech seeks to integrate technology to create a reminder system that is able to scan and identify a household member as they leave their home In the case that the family member leaves something of importance behind the system would notify them We hope this solution will bring ease of comfort to those who due to various reasons often forget items of importance The D Tech system consists of two main components the Central unit and the Detect and Scan unit These two units are installed at the main household exit and serve the following functionalities Detect and identify a user as they are leaving their home Scan for tagged items on the user and notify them if any items are missing Display relevant to do tasks and notes to the user Allow touch b
11. ified requirements as design goals for the completed system The requirements can aid the test engineers when they are designing system tests and will help them verify the validity of the outputs 1 3 Classification The following convention will be used to differentiate between different classes of requirements R I Applies only to the proof of concept prototype R II Applies to the proof of concept prototype and the final product R III Applies only to the final product 1 Page goldFish Technologies 2 System Requirements 2 1 Understanding the User The D Tech system is intended for average busy households In a family generally each member has multiple personal commitments and belongings Commonly a calendar or to do list is used to organize tasks and note personal reminders The use of our product will facilitate family members in scheduling task and item reminders to a single electronic unit and hence better organize their daily activities 2 2 System Overview Device Output Reminder forgotten items tasks Activates 3 Processing Motion Sensor ee ee ee ee eee eee ee ee a LEECELILELIIELILILELELELLELLLCLELELELELE ee ee ee ee ee ee ee ee ee ee ee ee Figure 1 High Level Functional Block Diagram The D Tech system consists of two essential subcomponents the Detect and Scan module or radio frequency identification RFID module which detects the SmartTags on the user and the central D
12. ired for one item it can get confusing for the user to see so many data entry fields on the same page R51 II The form shall provide a method for users to take a photo of their tagged item via a webcam provided that a webcam is available on their computer R52 Il The form shall allow users to enter up to three tasks at a time Reason Again limiting the number of fields on the page increases usability Task entry requires fewer fields and therefore more than one task entry is possible at a time R53 Il The form shall allow users to specify when the D Tech system should remind the user of the item or tasks by providing fields for date entry 6 Page goldFish Technologies 3 2 Standards R54 Il The form shall meet required web language coding standards in order to be properly viewed across all common web browsers mainly Windows Explorer and Firefox 3 3 Reliability and Durability R55 II The form shall be error free R56 Il The form shall be maintained by goldFish Technologies technicians R57 III The form database shall be maintained on its own servers to allow a high Capacity of users to be online at a time thus minimizing server downtime 3 4 Performance Requirements R58 II The form should allow multiple users to log in simultaneously to submit data R59 III The form database should be able to store an unlimited amount of item and task data 3 5 Usability Requirements R60 II The for
13. ist to display possible missing items to the user This component is crucial to the system s functionality as it is the only subsystem that communicates with the user The D Tech system is separated into two stages during use The input stage requires the user to manually enter a list of important items that are tagged with SmartTags These entered items are what the user wishes to be reminded of should the user leave the household without them The remind stage does not require any user control and the system will automatically scan the user anytime he she is leaving the household During this stage in the case that the user forgets to bring any tagged items the system will alert the user via an audio indication and specify the items that were forgotten 3 Page goldFish Technologies 2 3 General Requirements R1 ll The system shall detect the identity of the user and provide information related to this user R2 ll The system shall activate when signal from Detect and Scan unit is detected R3 ll The system shall acquire a list of items detected on user R4 Il The systems shall list and display items missing on the user R5 Il The system shall access the internet R6 II The system shall display the to do list for the current day R7 ll The system shall have touch screen functionality to obtain user inputs 2 4 Physical Requirements R8 ll The system shall have an LCD display R9 II The
14. m should inform the user when fields are not entered correctly or if data is missing R61 II The form should confirm with the user the tasks and items that were added R62 II The form shall provide built in instructions and examples R63 II The form shall be intuitive enough that no additional user manual is required R64 II The form shall be compact and attractive 3 6 Luxury Functions R65 III The form shall allow users to set up multiple accounts to their D Tech system to allow other people outside the household to enter items and tasks R66 III The form shall accessible with mobiles phones and compatible with their web browsers 7 Page goldFish Technologies 4 User Interface The D Tech System user interface allows users to access view and edit their items and tasks database Also the interface will notify users about missing tagged items and daily scheduled tasks 4 1 General Requirements R67 II The user interface shall be operational at any time R68 II The primary method of user inputs shall be through a LCD touch screen R69 II The user interface shall notify user when tagged items are missing R70 II The user interface shall remind users of schedules tasks R71 Il The user interface shall allow user to add and edit items and tasks on the database R72 ll The user interface shall provide the user with up to date database information 4 2 Graphical User Interface R73 ll
15. n the scanning component will detect any tagged items carried by the user and distinguish between different items The scanner should be in power saving mode at all times unless triggered by the detection unit to conserve power New SmartTags purchased should be identified by the scanner first so the tags can be properly detected at later times 5 1 General Requirements R82 Il The unit shall be powered off until activated by user movement in the vicinity of the system R83 II The unit shall detect and identify SmartTags within a 10 centimeter range R84 Il The unit shall detect new SmartTags and register them R85 Il The unit s detection component shall consume considerably less power than the scanning component R86 II The unit s detection component shall be on at all times R87 II The unit shall detect a moving person within 0 5 meters of the door 5 2 Reliability Requirements R88 II The unit should correctly differentiate between unique SmartTags R89 II The unit should activate and scan the user in a timely manner R90 II The unit shall not overheat or run the risk of failure when operating continuously R91 III The unit shall be guaranteed to work for at least 5 years 5 3 Physical Requirements R92 Il The unit shall be hidden from the user and protected from environmental hazards R93 II The unit shall be small and unobtrusive to home aesthetics R94 II The unit shall be easy to install in an
16. on This functional specification clearly illustrates the capabilities and features included in the D Tech reminder system The product development is divided into two distinctive phases The proof of concept model is being developed at this time while strictly following the specifications outlined above It is expected that all functional requirements described in this document marked with either or II will be completed by the target date of April 15 2009 12 Page goldFish Technologies 10 References 1 RFID Update on Standards and Regulatory Initiatives Association for Automatic Identification and Mobility Online Available http www aimglobal org members news templates template aspx articleid 3 302 amp zoneid 42 Accessed February 16 2009 13 Page
17. y 5 Page goldFish Technologies 2 12 Luxury Functions R43 III The system should enhance the aesthetics of the location where it is placed R44 Ill The system exterior should be customizable R45 Ill The system should be upgradable with new and easily obtainable internet download functionality R46 III The system should be expandable with user generated content 3 Anywhere Access Form The D Tech System Anywhere Access Form is an available online portal for users to add tagged item and tasks to their Central unit database This web application will act similarly to a survey or questionnaire asking the users for relevant information Performing as an accessory to the D Tech system the home system is able to work without the Anywhere Access Form However with the extended functionality of the form D Tech system s usability and flexibility is greatly improved 3 1 General Requirements R47 ll The form website shall be accessible by any computer with internet capabilities R48 II The form shall provide an alternative method for users to input data to their home database R49 I The form shall provide security by allowing access only when correct log in credentials are confirmed R50 I The form shall allow users to enter data for a single tagged item to the server at a time Reason Allowing data entry for only one item at a time allows the form to be more compact Since many data fields are requ
18. y home doorway R95 Il The SmartTags should be small enough to tag to various sized objects 9 Page goloFish Technologies 6 The Computer System Requirements R96 II The server system should be intuitive to use R97 Il The scanner system should be in power saving mode when not in use 7 The Documentation R98 III The user documentation should consist of a user manual as well as a setup guide R99 III Both the user manual and the setup guide will be available on the company website R100 IIIJAIl documentation shall be available in English French and Spanish R101 III All documentation will be written for an audience with minimal technical knowledge 8 System Test Plan The following section will describe functionality tests for the proof of concept D Tech system prototype These guidelines will contribute to the basic framework of commercial product tests The preliminary stage of the prototype testing will be performed by the team members of goldFish Technologies After the development cycle the prototype will be tested by potential users Their feedbacks on product appearance functionality and usability will be taken into consideration for alternative design solutions Performance of database Determine the time required to access entries in database Determine the time required to edit entries in database Observe whether the database will contribute to a possible information leak Quality
19. year round R26 III The system should not crash from general use R27 lll The system should be able to withstand shock from falls from up to 50 centimeters R28 Il System performance shall not degrade from normal use 2 9 Safety Requirements R29 Il The system should not provide any static shock when touched R30 II The display and user interface shall not be a strain to the eyes of the majority of users R31 Il Signal emissions from the system shall not interfere with other electronics R32 III All cable and wire connections shall be enclosed with proper shielding R33 IIl The system should provide clear indication in case of a crash R34 Il The system audio component shall not exceed 85 decibels Reason At 85 decibels risk of permanent hearing damage occurs R35 Il The system should not explode or combust spontaneously 2 10 Performance Requirements R36 II The system shall not take more than 0 5 seconds to scan user and display an alert R37 ll The system shall become active within 0 5 seconds of detecting a user R38 ll Lag time of the user interface shall not exceed 0 5 seconds 2 11 Usability Requirements R39 Il The learning curve of the device should be no more than a few minutes on average R40 Il The system will be intuitive to use R41 Il The module will facilitate easy access to the user interface R42 Il The system should integrate into a user s daily life relatively seamlessl
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