Requirement specification
Contents
1. 7 1 Description The purpose of the setup mode is that the user can set parameters as seen in the requirements below 7 2 Interface The manual setup is done by using the rotary switch and a GUI on the OLED 7 3 Requirements Requirement 18 P2 The real time clock shall be programmable in setup mode Requirement 19 P3 The static pressure given by air traffic control shall be programmable in setup mode Requirement 20 P3 Some information displayed in the main modes HSI ADI can be turned off Requirement 21 P3 The light intensity of the OLED shall be changeable by an external digital input Requirement 22 P3 There shall be two light intensity modes normal and dimmed The intensity levels in each mode will be adjustable TSRT71 Automatic control project OLiPs Mikael Lord page 8 Micro EFIS May 4 2006 8 Rotary switch unit 8 1 Description The rotary mode switch has the function of switching between the different graphical modes as described above It utilizes a button integrated with a rotary switch 8 2 Interface The rotary switch sends its signals to the FPGA 8 3 Requirements Requirement 23 P1 The rotary switch shall be robust and bounce free Requirement 24 P2 The rotary switch shall handle turns and single tap Requirement 25 P3 The rotary switch shall handle long and double taps 9 Upgrade requirements There shall be a way to upgrade the Micro EFIS with new future functi2. 2 2 System overview 3 2 1 Product description etis a BO E xd 3 2 2 Product components ed ss dis OR 3 2 3 Dependences sd dea a Rr Te iR e 3 Zub SUIS SCS ona e ces ld poire ro weg 3 250v Restrictions 2 2 ARA ARA E ARA AAA 3 2 6 Design method auti A A dr 3 2 7 General requirements ii a a A 4 3 OLED unit 4 3 1 Description AA A a 5 DON terface des d uxo E A deg e eR e XT 5 33 equisemienbss a rara frere teu M EMEN A Be oe RS 5 4 HSI display mode 5 A Des ription re le wed desig en D ed a fu Ae 5 4 2 nterfaee s v i Eu wi ES EE SMART 6 A Tusgurtemelilsso sce eis e ura IE gues Ske Wok RENE de VS 6 5 ADI display mode 6 Dd Description a de pra tar XE Soe X4 X wrklde a 6 e MM RH EC NER NCS E E EIC C C ET ET TIE X ITI 6 Dc EQUINOS eso d A ive ege E AUS 6 6 ESI display mode 7 Gal Description zarie pug nip AREA AA A AA 7 0 24 e E DX S 7 0 9 CROQUIEOTHIETIDS es Quae af ae dice espe e de et e le erat T7 7 Setup mode 7 T DesSenpto sis ae A AA ERAS th oe T ed IAS ers eun od ds a Y de OS Hee E 7 3 Requirements ala ed e Dale ged E a ttt 7 TSRT71 Automatic control project OLiPs Mikael Lord page II Micro EFIS May 4 2006 8 Rotary switch unit 8 DL Description 452 44 254444 use e Re ue de 8 BOE TEIGE ye eoo Rinks e ete rn nd See dd Be Se 8 8 3 Requirements 1o usb A pp A Male ak ale Se taris 8 9 Upgrade requirements 8 10 Reliability 9 11 Economy 9 12 Deliveries and subdeliveries 9 13 Documentation 10 14 Educat
3. be implemented on one single FPGA to meet the need to be small in size and have a low TSRT71 Automatic control project Lips Mikael Lord page 1 Micro EFIS May 4 2006 cost Since it is intented as a backup system it must have a high reliability be independent of external systems and simple to use To increase the ease of upgrading the system and to incrementally add functions it shall be built in modules 1 3 Use The system is intented as a backup for the mechanical flight instruments and the primary use is in the case of instrument failure 1 4 Background This project is within the frame of the Automatic Control Project Course CDIO at Linkoping Institute of Technology 1 5 Notation and abbreviations The following abbreviations and notations will be used ADI Attitude and Direction Indicator A C Aircraft DST DST Control AB the project owner EFIS Electronic Flight Information System a standardised terminology used for a system of sensors computers and displays designed to present critical flight data to the pilot ESI Engine Status Indicator GA General Aviation non commercial air traffic including aircraft oper ated by companies for internal use only GND Ground Level GUI Graphical User Interface HSI Horizontal Situation Indicator MSL Mean Sea Level TSRT71 Automatic control project OLiPs Mikael Lord page 2 Micro EFIS May 4 2006 2 System overview 2 1 Product description The
4. with old fashioned mechanical flight instruments now reaching the end of their lifetime as the air frames become older Instead of performing a complete upgrade of the entire instrument panel which can result in costs often exceeding the value of the entire aircraft one can complete the system with a much more affordable Micro EFIS A Micro EFIS is as the name implies a small EFIS Electronic Flight Information System targeted for the GA market It is intended as a backup system for the mechanical flight instruments In this document the project requirements will be specified Every re quirement will be stated as Requirement x Py Requirement description The priority levels are defined as follows P1 Highest priority These requirements must be fulfilled before the project closure P2 Normal Shall normally be fulfilled but are negotiable P3 Lowest These demands will be fulfilled if time allows it 1 1 Parties Customer Jan Erik Stromberg DST Control Link ping Supervisor Jeroen Hol Department of Electrical Engineering Link ping Institute of Technology Producent A group of six students at Link ping Institute of Technology 1 2 Goal The goal of this project is to design a stripped down version of a Micro EFIS and to evaluate the implementation based on state of the art organic graphical display a so called OLED display This to ensure high endurance at extreme temperatures down to 30 C The system shall
5. Micro EFIS May 4 2006 Requirement specification Mikael Lord Version 1 1 Status Examined Approved TSRT71 Automatic control project Lips Mikael Lord Micro EFIS May 4 2006 Project identity Spring 2006 Department of Electrical Engineering Link ping Institute of Technology Name Responsibility Telephone Email Mikael Lord Documentation 070 400 89 77 miklo919 student liu Anna Lindefelt Test 073 623 27 22 ann1i8580student liu Mikael Johansson Customer 070 207 29 90 mikjo941 student liu Ville Grandin Design 070 150 11 59 vilgr522 student liu Anders Jonasson Implementation 073 694 30 76 andjo7520student liu Chistian Lyzell Project leader 073 182 04 21 chrly059 student 1liu Homepage http www cyd liu se users andjo752 Customer DST Control Customer contact Jan Erik Stromberg 013 211080 janerik dst se Course leader Anders Hansson 013 281681 hansson isy liu se Supervisor Jeroen Hol 013 282803 hol isy liu se Tutor Janne Harju 013 282804 harju isy liu se TSRT71 Automatic control project Lips Mikael Lord page l Micro EFIS May 4 2006 Contents 1 Introduction 1 A it AA A Gn ee hts nt OB hit Sek ek as amp 1 EA MES ee Net hee ok A thy one RUN MERE 1 AE MT xe gee hd ete Gad ete Ges Oe oe Sa 2 LA BackeroUnd rca ee baie MEME RUE eR ee eee es EU RS 2 15 Notation and abbreviations 4 2 2 25 ona s
6. also can be given This project aims to produce a stripped downed version of an EFIS and will only implement the most significant parts 5 2 Interface The ADI communicates with the rotary switch OLED and sensors 5 3 Requirements Requirement 14 P2 The following data shall be presented in ADI mode magnetic heading MH and outside air temperature OAT Requirement 15 P3 The following data shall be presented in ADI mode when GPS is provided true heading TH and true course TC 6 ESI display mode 6 1 Description The Engine Status Indicator ESI provides the basic information about the A C condition such as battery voltage alternator current load current engine RPM engine manifold pressure engine fuel flow engine fuel pressure engine oil pressure engine oil temperature engine cylinder head temperature and engine exhaust gas temperatur This project aims to produce a stripped downed version of an EFIS and will only implement the most significant parts 6 2 Interface The ESI communicates with the rotary switch OLED and sensors TSRT71 Automatic control project Lips Mikael Lord page 7 Micro EFIS May 4 2006 6 3 Requirements Requirement 16 P2 The following data shall be presented in ESI mode date and time Requirement 17 P3 The following data shall be presented in ESI mode battery voltage alternator current load current engine oil pressure and engine otl temperature 7 Setup mode
7. atzer Math into D TEX Birkhauser 1996 3 Jan Erik Stromberg Requirement specification Micro EFIS DST Con trol MEFIS Doc Spec R0543S01 fm version 1 0 0 TSRT71 Automatic control project Lips Mikael Lord page 11
8. e upgrading a single subsystem independent of the others The system shall be developed with use of VHDL if needed a softcore will be included One single FPGA shall be used and the use of FLASH is optional DISTR SENSORS P9422 7 Pasi OLED VEHICLE pry c AU i FEBR USER ENC MAINT wa N RE Figure 2 System hardware overview 2 7 General requirements Requirement 1 P1 The system shall fit in a box with dimensions 60 x 60 x 50 mm Requirement 2 P1 An organic LED with dimensions 128 x 64 pixels shall be used to display the data TSRT71 Automatic control project Lips Mikael Lord page 4 Micro EFIS May 4 2006 Requirement 3 P1 A single FPGA of type Xilink Spartan 3 model XC3S1000 shall be used for all calculations Requirement 4 P2 The integrated hardware firmware development envi ronment Protel DXP by Altium shall be used Requirement 5 P1 The implementation will be modular and the code will be uniform well structured and commented Requirement 6 P1 A rotary mode selector switch of type EM11B shall be used to interact with Micro EFIS Requirement 7 P2 The communication between FPGA and sensors shall use RS422 protocol Requirement 8 P1 If the project group has not received the hardware card at the 3rd of May 2006 then all the requirements only have to be fulfilled in simulation 3 OLED unit The OLED subsystem is consisti
9. ion 10 List of Figures 1 Micro BBIS BOx a ec ae e a a 3 2 System hardware overview leen 4 TSRT71 Automatic control project OLiPs Mikael Lord page III Micro EFIS May 4 2006 Document history Version Date Changes Sign Reviewed 0 1 060203 First draw CL ML AL AJ 0 2 060207 Small changes and corrections CL ML AL ALL 0 3 060208 Major changes and corrections ALL ALL 0 4 060209 Some changes and corrections ML MJ CL ML MJ CL 0 5 060216 2 2 Product figure added 2 6 Hardware overview figure added 2 7 Rotary switch specified 3 3 New requirement removal and priority change 4 3 New requirement and priority change 5 3 New requirement 6 3 Requirement extended 7 3 New requirements 8 3 New requirements and re moval 9 New requirements 10 Requirement change ML CL ML 0 6 060222 2 7 Requirement 5 modularity mL m cL added ML MJ CL 1 0 060315 Approved as version 1 0 J Hol 1 1 060504 Requirement 8 has been added as cn discussed with supervisor Jeroen Hol AL TSRT71 Automatic control project Mikael Lord OLiPs page IV Micro EFIS May 4 2006 1 Introduction The General Aviation GA aircraft fleet has become very old 40 year old aircrafts are now very common thanks to reliable air frames and rapidly increasing prices of new light aircraft A vast majority of these aircrafts are equipped
10. ng of the graphical display module 128 x 64 pixels and associated hardware in the FPGA 3 1 Description The graphical display is based on state of the art organic technology a so called OLED display Organic materials have the benefit of operating over a wide temperature range as required by the GA market In particular the display is guaranteed to work down to 30 C without any degradation in performance Another important factor is long life expectancy since OLED displays are active emitting light by itself as opposed to passive LCD displays requiring an external light source it is ideal for operation in situations of total power failure Unfortunately there are no colour OLED displays currently available on the market Therefore the initial graphical user interface is limited to various intensities 16 levels of the yellow light emitted by the selected display 3 2 Interface The information given by the HSI ADI ESI and Setup mode shall be dis played on the OLED TSRT71 Automatic control project Lips Mikael Lord page 5 Micro EFIS May 4 2006 3 3 Requirements As the graphical display has no character generating hardware all such func tions will be implemented in the FPGA Requirement 9 P1 The typefaces that will be created shall be DST based and approved by Liana Pop Requirement 10 P2 The display shall be able to output the characters needed by the HSI ADI ESI and setup mode Requirement 11 P3 G
11. nt 36 P1 The test plan shall be delivered at DP3 Requirement 37 P1 The test results shall be delivered at DP5 Requirement 38 P1 The user manual shall be delivered at DP5 Requirement 39 P1 The final product shall be delivered att DP5 and be presented to show that the requirement specification is fulfilled Requirement 40 P1 Technical documentation shall be delivered at DP6 Requirement 41 P1 The project homepage shall be delivered at DP6 TSRT71 Automatic control project Lips Mikael Lord page 10 Micro EFIS May 4 2006 13 Documentation The purpose of the documentation is to inform the customer about the prod uct to be a tool to structurize the project make it efficient effective and to capture the experience for future work Requirement 42 P1 The documents of the project will be written in BTX and use the C LIPS document structure The following documents shall be produced according to LIPs e Requirement specification e System outline e Project plan including list of activities e Time plan e Design plan e Test plan e Test results e Time report including status report e Technical documentation e Reflection e User manual 14 Education Education in fields such as LIPS model OLED and FPGA will be given if needed by ISY and DST Control References 1 Tomas Svensson amp Christian Krysander Projektmodellen Lips kom pendium Link pings Tekniska Hogskola Version 1 2 2 George Gr
12. ons Requirement 26 P1 Software upgrades will be downloaded via serial pro tocol RS232 Requirement 27 P3 A version number system will be developed to ease version control at upgrades Requirement 28 P3 An upgrading software for Windows will be devel oped 10 Reliability The most important property of the system is not that it is fast and effective but that it works every time Le it is more important that the system is robust than it having high performance although high performance is desired Requirement 29 P2 The system shall be able to run for several hours without failure TSRT71 Automatic control project OLiPs Mikael Lord page 9 Micro EFIS May 4 2006 11 Economy The total number of working hours should be about 1200 Requirement 30 P1 The number of tutor hours available is 40 12 Deliveries and subdeliveries The list below specifies the decision points DP at which the deliveries shall be made The date for the DP1 is set to 2006 02 16 and DP2 2006 03 01 The final decision point DP6 is set to 2006 05 19 For remaining DP see the project plan Requirement 31 P1 The requirement specification shall be delivered at DP1 Requirement 32 P1 The system outline shall be delivered at DP2 Requirement 33 P1 The project plan shall be delivered at DP2 Requirement 34 P1 The time plan shall be delivered at DP2 Requirement 35 P1 The design specification shall be delivered at DP3 Requireme
13. product that is going to be delivered is a Micro EFIS Electronic Flight Information System aimed for the GA market It is intented to be used as a backup system for the mechanical flight instruments in case of instrument failure 2 2 Product components The Micro EFIS consists of an instrument casing with specific measures 60 x 60 x 50mm with a user interface on a single monochrome display 128 x 64 pixels and one single rotary mode selector switch A user manual and technical documentation will be included at delivery Mode switch Pe Graphical display Figure 1 Micro EFIS box 2 3 Dependences The back panel consists of a number of multi purpose connectors for future expansion The six leftmost connectors are intended for connection of dis tributed sensor units defined by the customer The topmost connector on the right is used for power supply The second connector in the right end is intended for upgrading the software of the Micro EFIS TSRT71 Automatic control project Lips Mikael Lord page 3 Micro EFIS May 4 2006 2 4 Subsystems The system will be divided into the following subsystems OLED unit HSI ADI ESI display modes setup mode and a rotary switch unit 2 5 Restrictions The group does not supply any support after project closure No garanties except fulfillment of the requirements will be given 2 6 Design method The system shall be built in modules with well defined interfaces to enabl
14. raphical objects such as circles dynamic lines and similar will be used to present data 4 HSI display mode 4 1 Description The Horizontal Situation Indicatior HSI provides the basic horizontal view of the A C heading and navigation The system usually displays data such as roll angle pitch angle slip lateral g force air speed pressure altitude true elevation vertical speed and outside air temperature If the A C is equipped with a GPS system then ground speed and true altitude also can be given This project aims to produce a stripped downed version of an EFIS and will only implement the most significant parts 4 2 Interface The HSI communicates with the rotary switch OLED unit and sensors 4 3 Requirements Requirement 12 P2 The following data shall be presented in HSI mode roll angle pitch angle slip lateral g force outside air temperature OAT and vertical speed VS Requirement 13 P3 The following data shall be presented in HSI mode air speed AS pressure altitude PA TSRT71 Automatic control project Lips Mikael Lord page 6 Micro EFIS May 4 2006 5 ADI display mode 5 1 Description ADI is an abrivation for Attitude and Direction Indicator which is a system to present common data such as magnetic heading direction track to radio beacon if ADF or VOR receiver is provided and outside air temperatur If the A C is equipped with a GPS system then true heading and true track
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