Assistive Technology.ppt

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1、Assistive Technology,Environmental Control Systems,INTENSIVE COURSE IN ASSISTIVE TECHNOLOGY/ MED.ENGINEERING 5.3.- 18.3.2001 Jyvskyl Polytechnic/Finland Hgskolan Dalarna/Sweden,Reinder Bakker,Program,Introductory,Introduction FontysThe IssueDomoticsAutonomy of the Disabled & ElderlyProject assignmen

2、ts Spoken dialogue with home systems,Why Assistive Technology ?,The issue (1),Persons with disabilities,About 50 million disabled persons in Europe. (ca. 6 to 7 % of the total population)Mobility impaired Hearing impaired Visually impaired Speech and language impaired Cognitive impaired (e.g.dyslexi

3、a) Dexterity impaired (reduced: function fingers-arms, strength .),The issue (2),Demography of age,Life expectancy is increasing all over the world. Worldwide from 48 years in 1955 to an expected 73 years in 2025Total fertility rate is declining from 5 in 1955 to an expected 2.3 in 2025. Larges diff

4、erences : Italy = 1.2 and Yemen = 7.6 in 1995.DomoticsConsequently the percentage elderly is growning. (50% between now and 2025)In Europe at this moment 1 of the 5 is over 65That means More than 100 million,The issue (3),Prejudice ?,Elderly are patients (80% not).Ederly are afraid of technology (te

5、chno phobia)Elderly are no economic factorElderly are too old to function, too old to work and maybe too old to play,The issue (4),Concrete needs of Bobas (Being old but active),Emergency system, facilities for homecareSecurity - and anti-burglary systemTele-services (grocery-services, banking )Ente

6、rtainment, cultural, educational servicesRegulation and Control of Power consumption,Why Environmental Control ?(Smart Homes or Domotics),Def.: An intelligent (smart) house can be considered as an comprehensive and intelligent aid, adaptable to the functional possibilities of the user and to the des

7、ired actions.,The issue (5),Domotics,Domotics can help to continue an independandent life of the elderly (control, communicate, banking.)Handicapped can benefit from Domotics to be more autonomous Domotics can contribute to a better quality of life. (self control, entertainment, self esteem),Why Des

8、ign for All ?,The issue (6),Advantages Design for All,To gain Market share Elderly Disabled Comfort seekersLess expensive (market share) Not stigmatizing,Project setting,An intelligent house for the handicapped and the elderly can be considered as an comprehensive and intelligent aid, adaptable to t

9、he functional possibilities of the user and to the desired actions.,Intelligent Houses for the handicapped,Project assignment 1,Intelligent Houses for the elderly handicapped,DevicesWhat devices had to be placed in an intelligent house ? Target group:Project group 1 en 3: Elderly motor handicappedPr

10、oject group 2 en 4: Elderly visually handicapped,Categories:,Domotics,Safety Signalling Communication Switching Closing/opening Personal care Housekeeping Medical Aids Adaptionof building plan Services based on telematics,Safety:,Domotics,burglar alarm fire alarm gas and smoke detector safety alarm

11、in gas stove overflow protection social alarm medical alarm,Signalling/Communication:,Domotics,video intercom computer with programs an peripherals speech module recognition software overflow protection So on,Control:,Domotics,remote control of lightning remote control of radio/TV/Video/CD/DVD autom

12、atic switching ligthtning remote control of front door remote control of curtains other remote controls,Personal Care/Housekeeping:,Domotics,adjustable bed bathroom lift Wash basin with high/low adapted toilet adjustable kitchen adjustable cupboard central vacuum cleaner system ,Adaptions of the bui

13、ding plan:,Domotics,monotoring devices bathroom lift washbasin with high/low adapted toilet adjustable kitchen adjustable cupboard central vacuum cleaner system re re,Intelligent homes gives:,Domotics,more Comfortmore Safetymore Communication fascilities,ComfortRemote/automatic control of household

14、equipment, central heating/cooling, lighting, etc,Intelligent Houses (1),Safety/AlertAlarms or “panic” buttons will be used to signal an emergency to external public services such as the police, the fire brigade, a nearby hospital, etc.,Intelligent Houses (2),Communication Person-to-person communica

15、tion or Access to various services such as tele-shopping, tele-banking, etc, Study staying at home Monitoring health condition Access to various information services, etc.,Intelligent Houses (3),Domotics Technology,Program,Introductory,Introduction FontysThe IssueDomoticsAutonomy of the Disabled & E

16、lderlyProject assignments Spoken dialogue with home systems,What s domotics,directorlightningventilationsun-blinds entrance-controletc,Construction of a classical installation,The switch is part of the power-circuit (230 V).The powersupply is via the switch to the lightningpoint.The switch has only

17、one function.,The switch or push-button is an input device which is in contact with an electonic control-module.That module sends a message to a contact-unit (actuator) which connects or disconnect the lamp with the mains.The function of the switch or push-button is programmable.There are two sepera

18、ted circuits: a control-line and a powerline.,Construction of a domotic installation,The digital control of a domotic-installation,All control-elements are connected to the same wiring. Every element has his own specific address . The right key to the right lock.To get the right control-signal to th

19、e right spot a protocol is needed.Wire and protocol together is called the bus (Binary Unit System),Digital control of a domotic-installation,advantages of digital controlControl-line is a low voltage-lineIts easy to add switches and lightsTo change the function of the switch.One switch is able to c

20、ontrol several circuits.Conditions can be added to the control activities,Digitale control at domotic-installations,Sensors and actuatorsThe elements which generate signals we call sensors. The elements which are activated by the system we called actuators. Put in an other way sensors : control and

21、actuators : carry out.Sensors : switches, temperatur-meters, infrared-cells, motion-detectors, wind-detectors, light-cells,Actuators : relays/dimmers for lamps; motors for the garagedoor, - rolling shutters, - curtains; sirenes, contactors voor heating-devices;,Domotic-network,In domotic-systems sen

22、sors, actuators, supply and communication are part of a home network. The network is controlled by the cordination-system.,Network coordination,Output-modules and supply on DIN-rail.(Procontrol) Central cordination,Elektronic module PLC, mounted on DIN-rail.(PHC- De Maegd)Central cordination,Each EI

23、B-module has his own controlunit inside (distributed control system),Domotic-function-diagram of a house,In the function-diagram the different action are exposed.,Grouping of the actions,Put on the light in the bedroom, the hall, the bathroom and the kitchen. Put on the heating in the bathroom. Adju

24、st the heating in the living-room to comfort-temperature. Switch on the coffee-machine and toaster. Switch on the radio. Etc,Grouping of the actions,Automatic lights on by entrance Smoke-sensors on the right places. All lights on/off by one button. Automatic alarms to police/fire brigade. Automatic

25、switch off forgotten devices.,2. Safety-functions,Grouping of the actions,Use only energy: Where it s needed. When it s needed. And in the right quantity.(E.g. Sensor in the bathroom)Switch all off.SensorControl of the amount of light.,3. Rational use of energy,Technical characteristics,Domotic-inst

26、allations distinct especially on the area of : The signal transport. The programmability of the functions. The user-interface The standard (use of protocols). The certainty of excecution and feedback. The certainty of communication. The integrated components.,Signal-transport,The bus is developed to

27、 simplify the electric wiring. All sensors and actuators are connected to the bus. Every sensor and actuator has his own digital address. Direct-connect-installations need bus couplers Sometimes manufactures gives bus coupler fixed and unique addresses. Powerline-modulation ; some systems modulate t

28、he control signal on the powerline. Wireless connection (infrared or radio) is also a quite common use of signal-transport. Sometimes combined systems are possible.,Signal-transport,Bus coupler(Procontrol ),Bus coupler(EIB-bus),To get to the bus a buscoupler is needed.,Signal-transport,Circuit of a

29、combined signal modality,Radio-receiver (Niko),Programming the functionality.,Niko-systems are programmed by systematicle pushing micro-switches.,User-friendly software makes the work of the technician easier. (PHC De Maegd),User-interface.,Central controlpanel with 8 buttons, buzzer and infrared re

30、ceiver (Teletask),Touch screen (Pluscontrol),User interface,Touch screen (Siemens),Today several domotic-systems are for sale in Belgium and the Netherlands. For instance: Domonet Teletask Pluscontrol Niko PEHA EIB,Standardisation and normalisation,instabus EIB,Standardisation and normalisation,The

31、systems are creative combinations of electronics en computertechnology.Hardly compatibility between the systems.Most systems have closed architectures.Most systems are supported by only one manufacturer.,The Project,Smart House Design Spoken dialogue with home systems,Project setting,An intelligent

32、house for the handicapped can be considered as an comprehensive and intelligent aid, adaptable to the functional possibilities of the user and to the desired actions. The communication between the handicapped and the intelligent house is in this setting extremely important. Up to now such communicat

33、ion has been almost entirely by means of buttons, keyboards and screens. Speech, which is by far the most widely used and natural means of communication between people, is at first sight an obvious substitute.,Intelligent Houses for the handicapped,Project assignments,Intelligent Houses for the hand

34、icapped,Assign.2 DistributionDistribute the devices of assign.1 over the house in a way that a comprehensive functional environment is created. Assign.3 Speech-controlled User-InterfaceDevelop a set of control- and feedback-sentences to control the home-system in the specified setting.,Program Envir

35、onmental control Systems,Solutions for Autonomy of the Disables and Elderly,Intelligent homes gives:,Autonomy of the Disables and Elderly (1),more Safetymore Autonomymore Self-esteem,The role of technology:,Autonomy of the Disables and Elderly (2),A friendly approach ( to obtain acceptance)Reliabili

36、tyLow costAutonomy,User interface:,Autonomy of the Disables and Elderly (3),Keyboard, mouse, touch screen ( menu-driven )Buttons, radio or infra-red buttons, adapted buttonsVoice-based (recognition, synthesis),Central Unit (computer based):,Autonomy of the Disables and Elderly (4),TV/Teletext, Radio

37、, Tape, CD, DVDFax -modem, Telephone services (alarm, help, telephone-directory)Local applicatons: Agenda, Word processing, Spreadsheets, home accounting, games Telecom applications: Telebanking, Internet,Environmental interface (Home bus):,Autonomy of the Disables and Elderly (5),White goods (washi

38、ng machines, ovens )Brown goods (conventional TVs, air-conditioners, hifis)Other appliances (lights, intercoms, door/window-openers, sunroofs, ventilators, CentralTelecom applications: Telebanking, Internet,Smart House Design Spoken dialogue with home systems,Speech processing : speech - speechspeec

39、h coding: for bit rate reduction e.g. (LPC)speech manipulation (pitch, duration)Speech synthesis : text - speechAutomatic speech recognition : speech - text,Speech technologies,Voice commandrobotshome systemsvoice diallingsmall vocabulary ( 10 . 100 words)isolated words - speaker independent - robus

40、tness to noise - real time,Typical applications (1),Voice access to information services + understanding - medium vocabulary ( 1000 words ) - continuous ( full sentences ) - speaker independent (speaker adaptive) - real time,Typical applications (2),Dictation- large vocabulary ( 10.000 ) - continuous - recognition only - speaker independent ( adaptive ) - off line,Typical applications (3),Securityhome bankingaccess control- speaker identification / verification - robustness security,Typical applications (4),