Function Specification for AWC
Contents
1. R32 II The electrical components shall be able to remain powered 24 7 R33 III The display screen be resistance to damage from normal operating conditions R34 II1 The MTBF of the window and curtain shall be no less than 5 years R35 III The curtain shall have a duty cycle of at least 1 000 000 cycles 2 9 Safety Requirements R36 II The electrical component of the window shall not be a hazard for electrical fire R37 I1 The window shall not cause bodily harm to the user while operating automatically R38 II The window shall be able to detect obstructions R39 Il The display screen shall not shock its user while being touched R40 I1 The electronic component and power connections shall be enclosed R41 II The curtain shall not fall under normal operating conditions R42 II1 The window and curtain shall be able to detect electrical and mechanical failure and shut off if needed R43 I11 The window shall not shatter under normal operating conditions R44 Ill Shattered glass shall not scatter over a wide area 11 Smaart Wind ws Function Specification for AWC 2 10 Performance Requirements R45 I1 The window and curtain shall complete one operation cycle within 10 s R46 I1 The window and curtain shall respond to mode changes within 500 ms R47 Il The display screen shall display its current mode temperature and humidity R48 Il The display screen shall update within 100 ms if changes are detected 2 11 Us2. Smaart Wind ws Proposal for Automatic Window Controller Dr Andrew Rawicz School of Engineering Science Simon Fraser University Burnaby British Columbia V5A 1S6 Re ENSC 305 440 Functional Specification for the Automatic Windows Controller Dear Dr Rawicz The following report contains the function specification for our product the automatic window controller We are aiming to invent an auto window system that will increase the users comfort and leisure while living in commercial buildings and home The AWC will solve the problem of people who forget to close or open their window before they leave their home and will make their lives more convenient when they are using the space In this function specification report we outlined our test plan system overview and requirements and standards for each part of our project We clearly distinguished between the requirements that will be implemented in our proof of concept model and final product Smart Window Inc is consisted of five engineering students James ChiaHung Lee Steven Ho Chong Zeng Dong Hao Zhuo Jie Wen Mai and Jing Xiang Hou If you have any further questions or suggestions please feel free to contact us by e mail at dzhuo sfu ca Alternatively you may also contact us by phone 778 318 9662 Sincerely Dong Hao Vincent Zhuo CEO Smart Windows Smaart Wind ws Function Specification for AWC Smart Windows Functional Specifications Project
3. Team Dong Hao Vincent Zhuo Steven Ho Chong Zeng James Chia hung Lee Jie Wen Mai Jing Xiang Hou Contact Person Dong Hao Vincent Zhuo dzhuo sfu ca Submitted to Dr Andrew Rawicz Steve Whitmore Date February 16 2015 Smaart Wind ws Function Specification for AWC Executive Summary According to the United States Department of labour the average employed American spends about 8 7 hours working 7 7 sleeping and 2 5 hours doing leisure actives 1 That is about one third of their day working away from home and another one third spent sleeping The active time spent at home is less than 8 hours a day thus a comfortable home environment cannot be maintained manually Some people close their windows and curtains when they are sleeping this can lead to interrupted sleep due to rise in room temperature and CO levels Those that leave their windows open while sleeping experiences a drop in temperature It may also start raining in the middle of the night and cause damage to furniture near the window People also tend to leave their windows closed when they are away from home thus their rooms become unventilated when they return The Automatic Window Controller AWC aims to provide the user a comfortable indoor living condition by automatically controlling the position of the window and curtains AWC is designed to be used automatically and manually Upon completion of the automatic phase the AWC will provide the foll
4. ees 12 2 12 LUKUPY FUNCOM Sessies neinean e EEE EEEE EE EEEa NR eege eer 12 3 Gili WINA VE 13 3 1 General Rep Eent S serie ee E E TESS 13 3 2 Physical Requirements siise a Senge E AEAEE geed eg 14 4 Awningne d alele VE 14 4 1 General REQUIREMENTS nass clacedeasviceeQevdssstedensslesedevesedshceeess ER Eege 14 4 2 Physical Regouirements nnen oeee 15 5 Roler lt E 15 5 1 General Reouirements cceccccessssececesesnececeesaeeecesesaeeeceeesaeeecescaaaeeeecseaaeeeceeeeaeeeeeeees 16 5 2 Physical Reouirementz 16 6 User Interface UNI tisitcc cssesniecssecascestavecshsstanaqnceetseceebeetsiacwheedsausmbesdesesebiihecessnshcueecsSusbitecssasbaeecet deht 16 6 1 General Reouirements ienasi eretet eii rerai penedir oeiia 16 6 2 Usability Reoguirements 17 6 3 Physical Reouirementz 17 7 User DOCUMENTATION ENNEN 17 8 Systemi Test Blaise deed Aere d 18 D COMCIUSIOMN saiscacecssisceberssuscelersadeceaeesvacederssnctacdvevsaddaendesduededertsuceateatasledebast AE adbdesnes ease 18 10 References Smaart Wind ws Function Specification for AWC List of Figures and Tables Figure 1 High Level Functional Block Diagram Figure 2 Window adjustment guidelines Table 1 Room Temperatures Corresponding to Activities Glossary AAMA BIFMA NAFS CGSB CSA WDMA WCAA MTBF Sill Height Gliding window Awning AWC User Assistive American Architectural Manufacturers Association Business and Institutional Furniture Manufacturers Associat
5. offices due to it being low maintenance and having no protruding parts The one disadvantage of a gliding window is that it is difficult to clean the outside of the window because it cannot be tilted inside The following requirements for the gliding window reflects the guidelines prescribed by AAMA 7 3 1 General Requirements R59 I1 The window shall be adjustable manually R60 I1 The window shall be parallel to the ground R61 II The window can be moved left and right R62 I1 The force applied to the window by the motor is uniform R63 I11 The increments of stepper motors for the window shall be less than 1 5mm R64 II1 The minimum structural pressure of the window shall be 1800 pa 7 R65 II1 The minimum water pressure of the window shall be 180 pa 7 R66 III The air leakage resistance of the window shall be no more than 75 pa 7 R67 I11 The transparency shall be at least 90 13 Smaart Wind ws Function Specification for AWC 3 2 Physical Requirements R68 II The width of the window shall be less than 1500mm 7 R69 II The height of the window shall be less than 1300mm 7 R70 II The window shall look stylish and modern R71 I1 The window shall be rectangle shaped R72 II The sill height of the window shall be at least 36 inches above the floor R73 II The window is secured to the wall and cannot be removed easily 4 Awning Window The advantages of using an awning window are the following
6. II The window shall look stylish and modern R86 I1 The window shall be rectangle shaped R87 II1 The window is secured to the wall and cannot be removed easily R88 III The sill height of the window shall be at least 36 inches above the floor R89 II1 The width of the window shall be less than 1500 mm 7 R90 II1 The height of the window shall be less than 900 mm 7 5 Roller Blind The roller blind s primary function is to control contaminants temperature odors sound and light The advantages of a roller blind are the following e Stay clean longer e Resistant to most chemical e Easy to install clean and replace 15 Smaart Wind Ws Function Specification for AWC The following requirements for the awning window reflects the guidelines prescribed by WCAA 8 5 1 General Requirements R91 II The roller blind shall be adjustable manually R92 II The blind can be moved up and down R93 II The curtains are installed on top of the awning window R94 II The brackets shall be levelled on either side R95 I1 The blind shall be installed with appropriate child safety component R96 I11 The increments of stepper motors for the roller blind shall be less than 1 5mm R97 Il1 The transparency shall be at most 5 5 2 Physical Requirements R98 II The blind skin or cloth shall be cut rectangular R99 II The weight of blind shall be less than 5 kg 9 R100 II The width of the blind shall be no less than 500 m
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8. ability Requirements R49 II The manual force required to adjust the window and curtain shall be low enough such that the average person can operate them easily R50 II The heat output of the electrical component shall have a minimum effect on room temperature R51 II The curtain shall be easily replaceable R52 I1J The window shall perform adjustment assuming that the user has set the desire temperature R53 IlJThe curtain shall perform adjustment assuming that the user has set the desire brightness level 2 12 Luxury Functions R54 I1 The window shall automatically adjust based on indoor temperature and humidity R55 II The curtain shall automatically adjust based on indoor brightness R56 I11 The display screen shall show a warning if the temperature is too hot or too cold R57 I11J The window and curtain shall be adjustable using a touch screen display R58 Il1 The noise output of the motors shall not be high enough to disturb a sleeping person 12 Smaart Wind ws Function Specification for AWC 3 Gliding window The advantages of using a gliding window are the following e Low maintenance cost due to having fewer parts than a conventional window e Lower energy bill due to improve insulation and energy efficiency e Longer life span due to fewer moving parts e Easy to use due to window being light weight and glides along window frame easily Gliding windows are popular in residential houses apartments and
9. e Can have a higher placement than other windows e Can be opened during rainstorm and prevent water seeping into the space e Looks better in higher placement Awing windows are commonly used in commercial buildings apartments and high buildings due to its better ventilation and high placement options The disadvantage of an awning window is that it protrudes when the window is open Also awning windows require frequent cleaning because the opened panel is slanted and becomes dirty faster than other windows The following requirements for the awning window reflects the guidelines prescribed by AAMA 7 4 1 General Requirements R74 I1 The window shall be adjustable manually R75 I1 The window shall be parallel to the ground R76 II The window can be moved in and out R77 Il The force applied to the window by the motor is uniform 14 Smaart Wind ws Function Specification for AWC R78 ll The maximum angle when the window is opened shall not exceed 45 degree 8 R79 Il The awning window is installed on top of the gliding window R80 III The transparency shall be at least 90 R81 II1 The minimum water pressure of the window shall be 390 pa 7 R82 III The air leakage resistance of the window shall be no more than 300 pa 7 R83 I11 The increments of stepper motors for the window shall be less than 1 5mm R84 II1 The minimum structural pressure of the window shall be 2880 pa 7 4 2 Physical Requirements R85
10. e H Pitch Circle Diameter 35 8 mm Track Inside Diameter 30 7 mm Ve A bR Outside Diameter 40 9mm Outside Diameter Figure 2 Window adjustment guidelines Smaart Wind Ws Function Specification for AWC 2 2 General Requirements R1 1 The manufacturing cost of the controller is less than 200 R2 II The windows should have two modes which can set the functions to manual and automatic R3 IH AII the sensors and gears are totally safe to the user 2 3 Physical Requirements R4 II The width of window should be less than 1500mm R5 II The height of window should be less than 1200mm R6 I1 The window controller shall look stylish R7 II1 The AWC should be installed in the wall for safety reasons 2 4 Electrical Requirements R8 I1 The power cord shall be less than1 cm in diameter to fit in the box which it is placed into R9 II1 The power supply shall be at least 20V to provide enough energy for motors R10 Ili The plug in power adapter shall meet the requirements of North American Standard voltages 110V 120V at 60Hz AC R11 Ili The whole system turns into energy conservation mode if all conditions remain constant for 15 minutes R12 Il1 Essential voltage nodes shall be measurable for debugging and trouble shooting R13 III JA backup power supply system can provide power source when there is a power outage R14 Il1 The backup batteries shall be easy to install and replace Smaart Wi
11. hin a comfortable living range by adjusting the position of the window The curtain will adjust its position to maintain desirable indoor lighting conditions In the later stages of development the window will also be able to detect gas leakage Several changes will be applied to the original functions The rain sensor will be able to be disabled manually to allow cleansing of the window The curtain will be able to be replaced with more desirable ones by the user The adjustments of the window and curtain will be able to be operated manually like a regular window and curtain Users will also be able to intelligently modify their preferred room temperature humidity and brightness using an electronic user interface Our AWC operates with a series of rules Phases and paths in the program specifically determine the priorities of each situation Each parts of AWC will cooperate accurately to accomplish multiple or complex tasks Remini SEE 6 Smaart Wind ws Function Specification for AWC One important aspect of the AWC is that the window and curtain cannot be manually adjusted when it is in automatic mode This window is designed to be able to detect harmful gases Once the detection of a gas leakage is confirmed the window will not be closed unless the system is shut down The system starts with its settings in default The default setting is chosen to accommodate for the majority of the population As suggested by Smart Windows Cons
12. ion North American Fenestration Standard Canadian General Standard Board Canadian Standards Association Windows and Doors Manufacturers Association Window Coverings Association of America Mean time between failures Distance between floor and lowest part of window frame 2 Window with a moving panel that slides to the left or the right to open 3 Window that is hinged on the top and opens outward with a turn of a crank handle 3 A person with the following characteristics e Height above 111cm maximum sill height 2 e Able to apply enough force to open and close a window To provide a mean that reduces the amount of work required for a person Smaart Wind ws Function Specification for AWC Roller Blind A curtain installed in a metal pole and operated with a side chain or a spring mechanism 4 1 Introduction The Automatic Window Controller AWC is a device used for ventilation in commercial buildings and residential homes AWCcontrols the windows and curtains based on the indoor and outdoor conditions of a building By sensing temperature humidity rain and sunlight the AWC can adjust the position of the window and curtain in a room to improve the living environment 1 1 Scope In this function specification the functional requirements and standards that must be met by a functioning AWC is outlined These sets of requirements and standards are used to design and build a proof of concept device and als
13. m 8 R101 II The drop of the blind shall be no less than 1000 mm 8 6 User Interface Unit The user interface unit shall consist of a set of buttons or a touch screen display as its input The output of the user interface shall be displayed on the touch screen 6 1 General Requirements R102 I The primary means of user input shall be through a set of buttons switches Se 16 Smaart Wind Ws Function Specification for AWC R103 II The user interface unit shall have a power off switch R104 II The outputs on the user interface unit shall consist of status indicators to indicate power on automatic mode and manual mode R105 IIl The outputs on the user interface unit shall consist of data to each mode R106 II The user interface unit shall allow the user to select various modes including but not limited to automatic mode manual mode and setting mode R107 IIl The user interface unit shall allow the user to setup various data including but not limited to window position curtain position temperature humidity and lighting 6 2 Usability Requirements R108 II The user interface unit shall turn on when the power switch is turned on R109 II The manual adjustment interface shall be intuitive and easy to use R110 III The user shall be informed through the user interface unit when the initial setup for data is complete 6 3 Physical Requirements R111 II The control panel shall be easily accessible to the u
14. nd ws Function Specification for AWC R15 IIIJAWC shall have at least 100 000 hours of life performance 2 5 Mechanical Requirements R16 IIJAll parts can be moved and adjusted by manually using mechanisms tools R17 Il The windows and curtains shall be able to move smoothly R18 II The windows and curtains shall be able to adjust manually by turning the controllers to manual mode R19 II1 The mechanical components of AWC shall be invisible and not physically obtrusive 2 6 Environmental Requirements R20 II JAWC shall be operational under temperatures between 20 30 C R21 ll The controller shall be functional within an elevation range from sea level to 1500m above sea level R22 I1 The controller shall be functional under the humidity range between 0 100 R23 IIIJAWC shall be water proofed R24 II1 AWC shall minimized the noise from operation be less than 50 dB 2 7 Standards R25 IIIJAWC shall meet the CGSB 43 212 2008 requirement R26 I11 The windows shall meet all AAMA 101 1 S 2 A440 11 standards R27 II1 The mechanical parts shall meet all BIFMA standards 10 Smaart Wind ws Function Specification for AWC 2 8 Reliability and Durability R28 II The window shall be serviceable by trained technicians R29 II The curtain shall be resistive to water and heat R30 I11 The window shall be able to withstand daily physical treatment R31 II1 The window shall be able to withstand heavy weather
15. o describe the final product 1 2 Intended Audience The function specification is meant to be used by all members of Smart Windows Inc and also any professional personnel assisting in the development of the AWC 1 3 Classification The following format is used to represent the functional requirements throughout the document Rn SJA functional requirement n denotes the functional requirement number S denotes the stages in development in which the requirement must be met l Requirement to be met in the proof of concept model Il Requirement to be met in both the proof of concept model and the final product II Requirement applies to the final product Smaart Win a amp ws Function Specification for AWC 2 System Requirements General requirements applicable to the AWC as a complete system are presented in this section 2 1 system overview The AWC is a system that can be modeled as shown in Figure 1 Input Output Figure 1 High Level Functional Block Diagram Due to time constrains in the first stage of development the window will sense only a few environmental elements and move automatically in only two directions These elements include outdoor rain indoor temperature and humidity and brightness The sensor system of our project will sense the outdoor rain droplets and close the window to prevent any rain damage The window also reacts to indoor temperature It will adjust the indoor temperature to be wit
16. onents are first tested to ensure it meets a minimal life span We can program our software to rotate the gear and chain for 2 000 000 cycles The weight of the window and curtains are also taking into consideration during this testing phase The window is consisted of two components the frame and the glass These components will be tested separately The glass will undergo shatter and temperature testes to ensure it is strong enough to withstand extreme weather conditions The frame will undergo structural strength testes which will apply force to each side of the frame until breakage Also air and water leakage testes and weather resistant testes will be performed Once each component is testes and meets legal requirements the window will be tested as a whole The window will undergo tests in weather resistance air leakage structural integrity and durability To confirm that the power supply has sufficient power to drive the controller and motors for window and curtain our power supply will supply power to our device for long durations of time Different stress load will be applied to the power supply in a room with varying temper to ensure that it doesn t over heat 9 Conclusion In this functional specification report the requirements and functionalities of the AWC are outlined The design will take place in two phases automatic and manual All standards and a 18 Smaart Wind ws Function Specification for AWC requirement
17. owing features e Screen display for temperature and humility e Automatic adjustment of the windows e Automatic adjustment of the curtain e Motion detection for safety The features of the AWC are chosen to be safe user friendly and provide the most assistive functions to help its user advance though his her day without needing to worry about indoor living conditions After the manual phase is complete the window and curtain will be able to be open and closed using man power There will be a switch to turn the power on and off When the power of the circuit is turned off the window will be no different than a regular window it will be adjustable by hand The targeted completion date for this phase of the project is on April 2015 Smaart Wind ws Function Specification for AWC Table of Contents Executive SUIMIMAIY e i erne oree r a E EAE E dasetndedees deans ce a Eaa deu 2 og eng E A Ee E EE A legt eg e EE 5 e SCO E 5 1 2 Intended TT 5 1 3 dee DEE 5 2 System Te En EC 6 2 1 System Re et 6 Ke AER EE 9 2 3 Physical REQUIFEMENTS seier iens leese eege 9 2 4 Electrical REQUIFEMENKES sarcen a te Seen lees tee eege eege N eege 9 2 5 Mechanical REG UiIPGMON tS essees e E E ek eass 10 2 6 Environmental Reoutrements sssrin ea a a E ENEE aE 10 Ke Rene le EE 10 2 8 Reliability and Durability gege eebe egene eege gees 11 2 9 Safety EE EE 11 2 10 Performance Leen 12 2 11 Usability REQUIREMENTS siccecisiessecdees ea e EE S E E
18. s in the proof of concept model above marked with II are currently being used as guidelines for our prototype The prototype is currently underway and is expected to be completed by April 16 2015 10 Reference 1 Bureau of Labor Statistics 2014 Retrieved from http www bls gov tus charts 2 WindowDoor 2012 Retrieved from http windowanddoor com article codes standards international code requirements windows doors 3 RealSimple 2015 Retrieved from http www realsimple com home organizing home improvement renovations types windows awning 4 Window Blind 2015 Retrieved from http en wikipedia org wiki Window_blind Roller_Blinds 5 Room Temperature 2015 Retrieved from http en wikipedia org wiki Room_temperature 6 Bijli Bachao 2013 Retrieved from https www bijlibachao com lights how much lighting is good lighting for a room html 7 Bijli Bachao 2013 Retrieved from http www aamanet org upload file CMB 5 11 pdf 8 Custom Roller Blind Standards Retrieved from http www wcaa com au site DefaultSite filesystem documents Custom Roller Blind Standards pdf 9 Turnils 2006 Retrieved from https www google ca url sa t amp rct amp q amp esrc s amp source web amp cd 1 amp cad rja amp uact 8 amp ved OCBWOFjAA amp url http 3A 2F 2Fweb turnils com 2FimageVault 2Flmages 2Fid 2315 2Fsc ope 512 2FimageVaultHandler aspx amp ei jJndVOvbE8KYNvSegOgD amp usg AFQjCNEzXI7K6dViwZj 2DHFKTU
19. ser R112 II The control panel shall be placed close to the window R113 II The control panel shall be placed inside the room R114 II The control panel shall be placed so that children under 10 shall not have access 7 User Documentation R102 III The user documentation shall provide websites and resources with general information and technical support R103 II1 The user manual shall be written in simple knowledge and basic electrical terms 17 Smaart Wind ws Function Specification for AWC R104 IIl User documentation shall be written in English Simplified and traditional Chinese French and Spanish for the North American market R105 IIIJA detailed installation guide and contact information shall be provided 8 System Test Plan The test plan for this product is separated into many phases and parts OurChief of Marketing Office will provide a more complete test plan once the proof of concept model is completed The testing procedure will meet the CSA and CGSB standards for our final product and prototype Also the test methods will become more accurate as improvements to our model are made Firstly the dimensions of each individual part need to meet a certain requirement for aesthetic reasons Therefore we use software programs Paint and Sketchup to draw blueprints for each components of the AWC Once the blueprint is finished we can use it to produce a downscaled version for our model The gears and its comp
20. ultant the ideal indoor environment that is comfortable to most people is described as follows Temperature The room temperature recommendations for summer and winter may vary a suggested typical range for summer is 23 C 73 F to 25 5 C 78 F and for winter is 20 C 68 F to 23 5 C 74 F 5 Brightness Amount of lighting required for a room depends on the size of the room and the purpose of the room Intricate tasks require more lighting and just moving around the room requires much less The amount of light required in an area is defined as LUX level which is equal to lumens area Im m Below is a table that provides a good idea of LUX level for various tasks 6 ee Public areas with dark surroundings 20 50 Simple orientation for short visits 50 100 Working areas where visual tasks are only occasionally 100 150 performed Warehouses Homes Theatres Archives Easy Office Work Classes Normal Office Work PC Work Study Library Table 1 Room Temperatures Corresponding to Activities KEE 7 S mart Wind ws Function Specification for AWC Window 0 02 m NL Awning Window 1 29 m 3 21m Step motor for moving BEE E egrat d into the wall Motor Curtai Motor 8 Gear nce JEE F ni m Inside Diameter Pitch otor Cable d Curtain Holder i waT Fabie 35 cn pr ff um n ien Dap De O r 0f Teeth 15 a N Rolling VC C
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