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Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost
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Introduction to wrap technology, a very low cost communication technology for connecting household appliances at zero cost

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The process of great transformation of the global energy system according to the concept of “smart grid” involves the direct collaboration of household appliances, in particular white goods, which, to …

The process of great transformation of the global energy system according to the concept of “smart grid” involves the direct collaboration of household appliances, in particular white goods, which, to this purpose, are becoming "smart" and are able to exchange information with digital power meters through suitable communication infrastructures. But, unfortunately, there still are objective problems relating to connectivity that hinder the rapid spread of these products. Wr@p technology, which Indesit has decided to liberalize through a new family of microcontrollers (RX200 family, 32 bit dedicated to smart appliances) of Renesas (Japan), has the aim to completely solve these problems. After signing a free licence agreement between Indesit Company and Renesas (29 March 2010), Wr@p technology (also known as "power modulation") can be freely used by manufacturers of household appliances without paying any royalties to Indesit.

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  • 1. (valerio.aisa@gmail.com) valerio aisaIntroduction to Wr@p Technology 2010 Articolo The process of great transformation of the global energy system according to the concept of “smart grid” involves the direct collaboration of household appliances, in particular white goods, which, to this purpose, are becoming "smart" and are able to exchange information with digital power meters through suitable communication infrastructures. But, unfortunately, there still are objective problems relating to connectivity that hinder the rapid spread of these products. Wr@p technology, which Indesit is going to liberalize with the help of Renesas (Japan), has the aim to completely solve these problems.
  • 2. How Wr@pTM Technology can speed upthe diffusion of smart appliancesAbstract. The process of great transformation of the global energy system according tothe concept of “smart grid” involves the direct collaboration of household appliances, inparticular white goods, which, to this purpose, are becoming "smart" and are able toexchange information with digital power meters through suitable communicationinfrastructures. But, unfortunately, there still are objective problems relating to connectivitythat hinder the rapid spread of these products. Wr@p technology, which Indesit is going toliberalize with the help of Renesas (Japan), has the aim to completely solve theseproblems.IntroductionThe growing demand for energy and the Inside the concept of smart grid there isabsolute need to reduce climate impacts therefore the need to collect and processin the world is producing a strong information in real time, generated byconvergence of scientific, industrial and appropriate measuring devices andpolitical interests towards the use of sensors distributed on the network ininformation and communication techno- order to achieve a coordinated control oflogies (ICT) to support the process of different parts.structural transformation of each phase of There is also the need to encourage athe energy cycle: from generation to more active role of the end users in thetransmission, from distribution to sale, to industrial sector and especially in theaccumulation and, above all, to the smart residential one, with the aim of stimulatingconsumption of energy. - through appropriate levers of economicThis virtuous link between ICT and the convenience - a more careful and colla-world of energy is commonly identified borative participation in the managementwith the term Smart Grid, or even of energy consumption to reduce peakInternet of Energy, just to highlight a through the leveling of absorption profiles.paradigm shift, a structural and techno- In both cases it is thus essential thelogical revolution that leads to a network creation of adequate communicationthat carries energy, information and infrastructures [1,7] associated with thecontrol and is composed of devices and distribution network.highly distributed and cooperatingsystems. [Indesit Company Spa – Fabriano (AN) - Italy] Page 2
  • 3. PREVIOUS INDESIT’S EXPERIENCE IN THE HOMEAUTOMATION FIELDHome automation is being addressed by FATMA of Ericssons Group. It was theIndesit for the first time about 25 years first device in the world able to enter intoago when President Vittorio Merloni a relationship with the household and toconceived ArisionTM, the "digital butler" inform the user via telephone using voiceable to speak and to control the house, messages.born in 1985 with the collaboration of the The experience of Arision was a strongformer Merloni Elettrodomestici (Indesit stimulus for the future commitment of thesince 2005) and ISI Italia, a small Italian Company in introducing digital technologycompany based in Rome. It was a in control systems of householdspecific device for managing security appliances, with the aim of giving to theissues and for controlling electric products a greater versatility andappliances, which was later marketed by "intelligence". Fig. 1: Ariston Digital, the first system of connected appliances (year 1999) [Indesit Company Spa – Fabriano (AN) - Italy] Page 3
  • 4. Fig. 2: Leon@rdo, the first “internet appliance” dedicated to the kitchen (year 1999)This commitment began to show the first The interaction with Enel, Echelon1 andresults in the second half of the 80s, with the MIT of Boston allowed the Company,the first digital products for cooking and under the strong commitment ofrefrigeration, but found its full realization Francesco Caio (CEO, at that time) andin the 90s, when Vittorio Merloni President Vittorio Merloni, to devise anddecided to launch the ambitious project - implement Ariston Digital (1999), theat that time really very innovative for the first system of household applianceswhite goods industry - to acquire within (Figure 1), in the world, able tothe Company, traditionally based on an communicate among themselves andelectromechanical culture, all the skills with the outside world through Leon@rdonecessary to develop, fully autonomously, (Figure 2), the first "Internet appliance"digital control systems for its products. dedicated to the kitchen.From this project was born Margherita Through this experience, characterizedDialogic (1995), the first digital washing by the great success ofmachine capable to communicate with Margherita2000.com (Paris, 1 Decemberthe surrounding environment, and then 1999: Figure 3), the first appliancethe beginning (1997) of Indesits capable to communicate with a mobilerelationship with Enel, the big Italian phone and to interact with the web, and ofutility, aimed at optimizing the energy “Margherita Pay-per-Use" (2002, Figureconsumption of the house through the 4), the first washing machine where thedialogue among the white goods and thedigital electricity meter (at that time in 1development). Echelon (Palo Alto, CA), leader in the field of data communication, was partner of Enel in the project for developing its new electricity meter.
  • 5. user doesnt buy the product but just itsservice, the Company gainedinternational credit and visibility.Thanks to this, Indesit was able to startplaying an active role in CECED [4] - theEuropean organization of manufacturersof home appliances - with the opportunityto effectively contribute, along withElectrolux, Bosch-Siemens, Whirlpool,Miele and other white goodsmanufacturers, to the development ofcommon communication rules to ensureinteroperability among products ofdifferent brands [5,6]. Fig. 4: Margherita pay-per-use (year 2002). It was a long standardization process which is arriving to its first important finalization through the recent Energy@Home project [7] - spurred by Enel and developed in collaboration with Telecom Italia and Electrolux - which began officially in October 2009 and will terminate by 2010. The goal of this project is to define, develop and make available all the hardware and software components (Figure 5) required to minimize the cost of Fig. 3: Margherita2000.com, the first electricity and reduce CO2 emissions web based appliance interacting with through an appropriate dialogue among cellular phones (year 1999). the household appliances and the digital energy meter, and to open the home to the world of value added services based on Internet. [Indesit Company Spa – Fabriano (AN) - Italy] Page 5
  • 6. Fig. 5: General architecture of Energy@home systemThe dialogue between the electric utility purpose is to complement the preexistingand the household appliances is based profiles Smart Energy (SE) [8,9] andon a new device of Enel called Smart Home Automation (HA) [10] of ZigBeeInfo, which has access via powerline protocol. It incorporates and extends the(PLC communication) to all the data features of earlier SE and HA profiles ingenerated by the electricity meter and order to give to each white good the fullcan benefit from a broadband internet potential that comes from his new role asconnection made available by Telecom "intelligent" element of a homeItalia through its new Home Gateway. automation system, and it is technicallyThe local network HAN (Home Area configured as an extension of the sameNetwork) is based on radio frequency and "ZigBee Home Automation profile"employs low power ZigBee technology (addition of appropriate new clusters to[3]. The ZigBee based communication HA profile), expressing the results ofnode, which is located within each many years of experience on connectivityelement of the system (Smart Info, Home issues of European manufacturers ofGateway, appliances, smart plugs, smart household appliances.sockets...), has a new "application Indesit, pushed by its top managementprofile", currently being developed by the led by CEO Marco Milani and Presidentfour partners the project. This new profile Andrea Merloni, has recently officiallyincorporates the results of many years of joined the ZigBee Alliance [3] and it iswork, aimed at ensuring interoperability producing a strong effort, supported byamong products of different brands, strategic alliances [11], with the aim ofwhich has been done by CECED during reducing the time-to-market of itsthe first half of this decade and recently "intelligent" products.standardized by CENELEC [5,6], and its [Indesit Company Spa – Fabriano (AN) - Italy] Page 6
  • 7. DYNAMIC DEMAND CONTROLThe recent experimentation of an old synergistic and synchronized action ofconcept proposed in 1979 by prof. Fred. digital appliances capable to continuouslyC. Schweppe of MIT (Boston, USA) is monitor the value of the mains frequencyshowing how it is possible to contribute to [21].the stability of the electric grid through the Fig. 6 - Dynamic Demand Control (DDC)This is the concept of "Dynamic Demand In this way the joint and synchronousControl" (DDC, Figure 6) [22], i.e. the action of thousands of appliancespossibility that a set of domestic produces, through the sum of the smallappliances distributed over a large contributions of electric power from eachgeographical area (may be an entire one, corrective actions which allow tocountry like UK or Italy) and synchronized ensure a substantially stable balancethrough the same frequency, can act in a between the power generated by thesynchronous manner to transfer or power plants and the one absorbed byabsorb power when the mains frequency, the downstream users, minimizing orrespectively, tends to fall below a certain even eliminating the costly interventionsthreshold lower than 50 Hz or to rise upstream (switching on of generators forabove a certain threshold greater than 50 meeting the increased demand for power,Hz (Figure 7). or putting them in standby mode when [Indesit Company Spa – Fabriano (AN) - Italy] Page 7
  • 8. there is an excess of production) which harmful emissions to the environment.cause strong inefficiency and increase Fig. 7 – DDC basic conceptAppliances which are best suited to refrigerators properly set for managingperform this function are refrigerators and the DDC function [23, 24], and the firstwater heaters, i.e. those products that results are confirming the absolutehave a thermal accumulation (hot or cold) validity of this approach, that is entirelywhich allows them to manage the DDC complementary and synergistic withfunction, preserving the quality of respect to the concept of energyperformances in any working condition. management at home, being the project Energy@home its effective expression.In this regard, Indesit has beenconducting an interesting experiment forseveral months in UK (Figure 8), with [Indesit Company Spa – Fabriano (AN) - Italy] Page 8
  • 9. Fig. 8 – DDC trials in the world
  • 10. WHITE GOODS AND CONNECTIVITYPROBLEMSThe great pioneering effort made by normal in the field of communicationIndesit in the mid 90s, very appreciated technology), the needed updates of thealso internationally [12,13], could not be product would be a great burden for thefinalized to the market for the following user because they require thethree main reasons: intervention of a specialized technician at home. the total lack at that time of communication rules shared by the A second obstacle concerns the various manufacturers of white goods, manufacturer that, to introduce the the almost total absence in the homes communication node within the products, of broadband (Internet penetration in is forced to make mechanical (hardware), the home relates to recent years and electrical (extra wires) and electronic is still in progress) changes which tend to de-standardize the and, last but not least, the excessive appliance and to increase its cost. This cost of the connectivity. fact causes the creation of specific product lines which, though perfectly inWhile the first two problems are going to line with commercial high-end offers, arebe completely solved, the third remains a unlikely they impact on mass productionbarrier to the spread of connectivity for and that significantly contribute to themass products, although there will be day spread of smart appliances, as would beafter day technical solutions with more desirable to adequately support theaffordable costs (such as ZigBee-based parallel development of smart grids.communication nodes, for instance),nevertheless the introduction of a A third obstacle - which concerns thecommunication node inside an appliance home-system and refers to thestill causes "side effects" not negligible. management of electricity consumptions according to the criteria of smart grid - isA first obstacle comes just from the that the time required by the newpresence of a communication node within generations of smart appliances fora product - whose introduction, to be replacing all the products currentlyeconomically sustainable for the present in the homes is about ten or moremanufacturer, should be done on years, so it is too long for properlyproduction line - because such node ties supporting the parallel development ofthe appliance to the adopted technology electricity networks.and, in case of its evolution (that is [Indesit Company Spa – Fabriano (AN) - Italy] Page 10
  • 11. Fig. 9 – Communication system based on Wr@pTM TechnologyThese problems have suggested, since Indesit Company Spa, Wr@p technologyfrom the early 2000s, the exploration of will be shortly added as hardwareother paths in addition to the classical peripheral to the new family ofsolution represented by the microcontrollers of Renesas dedicated to"communication node" put inside the the new generation of householdhousehold appliance, and Indesit has appliances commonly known as “smartdeveloped and successfully tested a appliances”. Therefore, in such a way, thetechnical solution that is very cheap2 low cost communication technology ofbut absolutely adequate for managing Indesit will be soon liberalized and madethe energy issues coming from the available to all manufacturers of electricalsmart grids opportunities [14]. household appliances that want to use it [20].This solution (Figure 9) is called “PowerModulation” (PM) or Wr@pTM (WRAPstands for Web Ready AppliancesProtocol) and, thanks to the strongsupport of the University of Parma, it wasrecently implemented on silicon[15,16,17,18,19] by Renesas, theJapanese firm founded by the consortiumof Hitachi, Mitsubishi and NEC, and, afterthe free license agreement signed lastMarch by President Andrea Merloni of2 Wr@p technology uses the same electronic resourcesalready present in the appliance. [Indesit Company Spa – Fabriano (AN) - Italy] Page 11
  • 12. THE IMPORTANT ROLE OF “SMART PLUGS” AND“SMART SOCKETS”The obstacle to the diffusion of smart than ten years) required for replacing allappliances - able to manage electricity the traditional products currently presentconsumptions according to the criteria of in the homes, could be overcome bysmart grid -, due to the long time (more using "smart plugs" (Figure 10). Fig. 10 – Smart plugs for energy monitoring and controlA lot of “smart plugs” and “smart sockets” The most advanced smart plugs areare invading the world, mainly coming capable to communicate with a localfrom China. Their main purpose is to network (based for instance on ZigBee,show to the user, through a simple LCD WiFi or other RF communicationdisplay, the energy consumption - and the technology) and can control electric loadsrelated costs - of the electric loads by using relays (on/off control). The(household appliances and other), in connection to a local network is really aorder to create a positive culture about very important point, absolutelythe proper use of the energy and to necessary for contributing to manage theincrease his/her awareness on how energy consumption at home accordingreduce consumptions and costs [2]. to smart grids’ philosophy, but the on/off control can be used only to manage simple electric loads (Figure 11).
  • 13. Fig. 11 – ON/OFF control of household appliances is not allowedAn on/off control isn’t accepted by users appliance can send information on itsand manufacturers of white goods, operating status simply modulating thebecause it can cause malfunction or power absorption of one of its internalfailure of the appliance. electric loads. To do this, however, smart plug should be able to decode theAn on/off control could theoretically be information sent by the appliance.accepted if the smart plug was capable toknow the operating status of the Transforming a standard “smart plug” to aappliance in order to switch off it only Wr@p enabled one is quite easy: it iswhen possible, but, to do this, the only necessary to add the specific logiccollaboration of the appliance itself is for decoding the data sent by themandatory. appliance through a proper analysis of the measures done by the power meterBy using Wr@p technology it is possible located inside the plug (Figure 12).to overcome this problem, because the
  • 14. Fig. 12 – Concept of Wr@p enabled smart plug[Indesit Company Spa – Fabriano (AN) - Italy] Page 14
  • 15. INTRODUCTION TO WR@P TECHNOLOGYWr@p Technology, also commonly In order to connect a "Wr@p enabled"called “power modulation” (PM), has the household appliance to a local network, aaim to add point-to-point3 commu- special adapter (commonly called “smartnication capability to a household adapter”) placed between the applianceappliance without affecting its industrial power cable and an electric socket iscost, because uses the same electronic needed.resources already present in it. The “smart adapter” is simply a “smartTo do this, the appliance should have plug” having a power meter, a propera control system based on a logic for decoding the data sent by themicrocontroller and at least one appliance, and means for its con-electric load controlled through a triac. nection to a local network (any LAN technology can be used). It can beThe basic concept of PM is transmitting integrated inside a socket, sodata by modulating the power absorbed generating a “smart socket”.by one of its electric loads. In this way, itis possible to transmit 50 or 60 bit per Thanks to Renesas4 (Japan) andsecond, depending on the mains University of Parma (Team of Prof.frequency, i.e. 6 or 7 bytes of coded data Paolo Ciampolini: [15-19] ), Wr@pper second [15,16]. technology was embedded inside a microcontroller peripheral (Figure 14) inAt first sight, this kind of transmission order to guarantee repeatability of thewith a so limited baud rate seems to data transmission from the householdbe too much poor, but actually covers appliance.perfectly what is necessary forsatisfying all the grid’s needs. Thanks to this repeatability, Indesit is able to offer the license of Wr@pIn fact, for transmitting the appliance technology (Figure 16) to anystatus, or some other information like a interested manufacturer of “smarttime interval, a temperature, statistical plugs” and “smart sockets”, in orderdata, diagnostic data, fault codes, and so to create a new generation of deviceson, only few bytes are necessary. which can interact with the grid and, inFurthermore, PM communication is bi- the same time, are able to directlydirectional: the appliance can receive 25 communicate with the householdor 30 bytes per second, depending on the appliances that receive AC powermains frequency (Figure 13). It means the supply through them.appliance can receive commands and Wr@p technology is covered byinformation, through a local network, from international patents - most of theman energy manager placed in the home; it already granted -, which are owned bycan also send, day by day, statistical and Indesit Company Spa – Fabriano (AN)diagnostic data to a remote service centre Italy (www.indesitcompany.com).which offers to the customer, for instance,high level services of remote assistance Wr@pTM is a registered mark which isand preventive maintenance. owned by Indesit Company Spa. Wr@p (WRAP) stands for Web Ready3 Appliances Protocol. Wr@p Technology is a point-to-point communicationthat allows a household appliance to directly 4communicate with the “smart plug” or “smart socket” Renesas is a Japanese firm established by thethat provides its power supply from the mains. consortium of Hitachi, Mitsubishi and NEC. [Indesit Company Spa – Fabriano (AN) - Italy] Page 15
  • 16. Fig. 13 – The new Renesas RX210 microcontroller family (32 bit), which embeds PMIperipheral, is very suitable for designing white goods capable to interact with smart grids without adding any cost to the appliance.
  • 17. Wr@p Technology main featuresThe main features of Wr@p technology are the following: 1. No cost for the manufacturer of household appliances, because the communication is managed by the same control system of the appliance, in particular by a Renesas microcontroller (new 32-bit family RX210) with a PMI peripheral on board (Figure 14). Furthermore, after the signature of a free license agreement between Indesit and Renesas (March 29-th, 2010), no royalty is due to Indesit for using Wr@p enabled microcontrollers supplied by Renesas. 2. No need to tie the appliance to a specific network protocol, because the connection to a local network is managed by the “smart adapter”. In other words, the communication node (necessary) is moved from the appliance to the smart adapter, and all the networking issues are managed by such adapter. Therefore, Wr@p technology is virtually compatible with any network protocol. 3. Fully suitable for interacting with a smart grid, because Wr@p technology is able to manage all the necessary information. 4. Capability to easily perform the energy function called “Dynamic Demand Control”, because the same PMI peripheral of Renesas RX210 microcontrollers provides a precise measurement of the mains frequency (Figure 15). 5. Very easy to implement: just use a Renesas microcontroller with PMI peripheral on board (RX210, the new 32-bit family dedicated to “energy-aware” household appliances). 6. Capability to speed up the spread of smart appliances. The availability of a new generation of "smart plugs", which thanks to Wr@p technology are capable to communicate with their electric appliances, allows speeding up the diffusion of smart appliances interacting with the grid. 7. No conflict with a possible “communication node”5 within a Wr@p enabled white good, because the control system of the appliance can easily manage the two different communication channels. 8. Suitable for creating a new generation of “smart plugs & smart sockets”, connectable to any local network and able to directly talk with the related household appliance. Furthermore, Wr@p technology can be easily implemented inside a traditional “smart plug”6 just by adding the proper logic (software) to decode the data sent from the household appliance through the PMI peripheral of Renesas RX210 microcontrollers. 9. The appliance can be remotely assisted without adding any cost to the product. It is possible because the new generation of household appliances based on Renesas 32 bit microcontrollers (RX210 family) can execute complex routines5 A white goods manufacturer can use Wr@p technology as the basic communication system for the entire productionof digital household appliances, because it doesn’t cost. When it is necessary a higher rate communication (in case oftop class products, for instance), a standard communication node can be added without any problem.6 To add the "Wr@p technology" to a traditional "smart plug" will need the following two operations: add proper logicto decode the data sent from the appliance and insert the hardware to send data to the appliance. Adding only thedecoding logic could be enough for performing the "Demand Side Management" function. [Indesit Company Spa – Fabriano (AN) - Italy] Page 17
  • 18. for auto-diagnosis and will be potentially able to capture early symptoms of possible faults – with the help of proper sensors - for enabling preventive maintenance services.10. Possibility to improve and accelerate the in-line test of the appliance, without the need to use expensive and complex tools (Figure 16). In fact, thanks to the “power metering” function of the “smart adapter”, it is possible to send to the appliance, for instance, commands for activating and deactivating each electric load of the appliance sequentially, measuring in the same time its electrical quantities, like the absorbed current and the cosphi (displacement between the mains voltage and the mains current related to the load). Fig. 14 – Renesas PMI (Power Modulation Interface) peripheral of the RX210 microcontroller family [Indesit Company Spa – Fabriano (AN) - Italy] Page 18
  • 19. Fig. 15 – PMI peripheral of Renesas RX210 microcontroller family (32 bit) can also manage DDC (Dynamic Demand Control) functionFig. 16 – Simplified lay-out of an in-line testing system (very effective, for instance, in the case of refrigerators, but absolutely suitable for any kind of electric appliance) [Indesit Company Spa – Fabriano (AN) - Italy] Page 19
  • 20. Indesit Business ModelWr@p technology is owned by Indesit Company Spa, which has developed this verysimple and cheap communication technology for overcoming the obstacles encounteredduring its first attempt to produce “smart appliances” for the connected home (see pages3-9).Wr@p technology is very useful for creating white goods able to communicate with a localnetwork for properly managing energy consumption - for instance - according to the “smartgrid” approach, and also for opening the field of "white goods" to new web based services(remote assistance, preventive maintenance and so on).Because Wr@p technology uses the same electronic resources already present in a digitalappliance, it doesn’t affect its industrial cost and can be easily implemented.Therefore this technology could be very useful for speeding up the diffusion of "smartappliances" (see pag. 8, “third obstacle”), but, if adopted only by Indesit, it could remainjust a proprietary “little garden” without any future. Fig. 17 – ON/OFF control of household appliances is not allowedFor this reason, Indesit has decided to liberalize7 Wr@p technology by putting it on silicon8(for guaranteeing repeatability), and by creating a specific peripheral for microcontrollers.7 No royalties to pay to Indesit Company, owner of Wr@p Technology. [Indesit Company Spa – Fabriano (AN) - Italy] Page 20
  • 21. This peripheral – which is called PMI (Power Modulation Interface) - has beenimplemented by Renesas (Japan) in 2008 and, after signing a "free license agreement"with Indesit (March 2010), this company is planning to use it for a new generation ofmicrocontrollers particularly suitable for developing “energy-aware" appliances.The business model of Indesit concerning Wr@p technology is very simple and is basedon the following two steps (Figure 17): 1. Liberalizing the technology at appliance level (no royalties to pay by the manufacturers of household appliances that want to use “Wr@p enabled” microcontrollers). 2. Licensing of Wr@p technology at “smart adapter” level (this license is offered to any producers of smart plugs and/or smart sockets that want to use this technology).8 Wr@p technology used at "appliance level" could be implemented also via software. Indesit decided to not permit toany third parties to implement such technology via software; therefore the free license to Renesas absolutely doesn’tinclude this possibility. [Indesit Company Spa – Fabriano (AN) - Italy] Page 21
  • 22. CONCLUSIONWr@p technology, a simple and very assistance, preventive maintenance andcheap communication technology so on). Therefore Wr@p technology coulddeveloped by Indesit during the 2000s for be very useful for speeding-up theovercoming the obstacles encountered diffusion of "smart appliances" accordingpreviously (second half of the nineties) in to the needs of smart grid revolution.attempting to produce “smart appliances” For this reason, Indesit has decided tofor the connected home, seems to be the liberalize Wr@p technology through aright solution for creating white goods new family of microcontrollers, producedable to communicate with a local network by Renesas (Japan), which adopt thisfor properly managing energy technology and are particularly suitableconsumption and also for gaining for developing future “energy-aware"important commercial advantages from appliances.new web based services (remote [Indesit Company Spa – Fabriano (AN) - Italy] Page 22
  • 23. BIBLIOGRAPHY [12] C. Watkins: “Smart Appliances await[1] AIM Project: http://www.ict-aim.eu/ consumer acceptance”, INFORM[2] S. Darby: “The effectiveness of review, Vol. 13, Number 3, March feedback on energy consumption”, 2002, AOCS Press University of Oxford, april 2006, [13] U. Hansmann, L.Merk, M.S. http://www.eci.ox.ac.uk/research/en Nicklous, T. Stober: Book ergy/downloads/smart-metering- “Pervasive Computing”, § 4.2.3.4 report.pdf “Real world smart appliances”, pag.[3] ZigBee Alliance: 76-77, Springer 2003 http://www.zigbee.org/[4] CECED, European Committee of [14] V. Aisa, P. Falcioni, P. Pracchi: Domestic Equipments “Connecting white goods to a home Manufacturers: network at a very low cost”, http://www.ceced.org/ International Appliance[5] EN 50523-1:2009, “Household Manufacturing review, 2004, pag. appliances interworking: Functional 85-91, specification”: http://www.domoticainfo.it/atti_conve http://shop.bsigroup.com/en/Product gni/FP_spazi_tecnologici_17_5_04/ Detail/?pid=000000000030186988 Merloni/Wrap_IAM_2004.pdf[6] EN 50523-2:2009, “Household [15] A. Ricci, V. Aisa, V. Cascio, G. appliances interworking: Data Matrella, P. Ciampolini: “Connecting structures”: electrical appliances to a Home http://shop.bsigroup.com/en/Product Network using low-cost Power-Line Detail/?pid=000000000030186991 Communication”, in Proc. 2005[7] V. Aisa: “Smart grid & ISPLC, pp. 300-304. Energy@home project: smart appliances and energy management [16] A. Ricci, V. Aisa, I. De Munari, V. “, Slides 21-32, Home & Building Cascio, P. Ciampolini: Days - Milano, 18 giugno 2010: “Implementation and Test of a http://www.expohb.eu/domotica/pdf2 Power-Line based Communication 010/Aisa_Indesit.pdf System for Electrical Appliances[8] “ZigBee Smart Energy” Profile: Networking”, in Proceedings of the http://www.zigbee.org/Markets/ZigB 10th ISPLC, Mar. 2006, pp. 239– eeSmartEnergy/Features.aspx 244.[9] Introduction to “zigbee smart [17] A. Ricci, V. Aisa, I. De Munari, V. energy” profile (white paper): Cascio, P. Ciampolini: “Electrical http://www.jennic.com/files/files/whit Appliances Networking: an Ultra- e_papers/JN-WP-7002-Intro-to- Low Cost Solution based on Power- Smart-Energy-1v2.pdf Line Communication”, 25th ICCE, Jan. 2007.[10] “ZigBee Home Automation” Profile: http://www.zigbee.org/Markets/ZigB [18] A. Ricci, B. Vinerba, E. Smargiassi, eeHomeAutomation/Features.aspx I. De Munari, V. Aisa, P. Ciampolini: “Power-Grid Load Balancing by[11] Stefano Frattesi, interview at Using Smart Home Appliances”, in Freescale’s event: Digest of Technical Papers http://www.youtube.com/watch?v=r6 International Conference on gCi4O7TNg Consumer Electronics, Jan. 2008, pp. 1–2. [Indesit Company Spa – Fabriano (AN) - Italy] Page 23
  • 24. [19] A. Ricci, B. Vinerba, E. Smargiassi, I. De Munari, V. Aisa, P. Ciampolini: “Design and Test of a Microcontroller Peripheral for Grid- Aware Networked Digital Appliances”, Third Workshop on Power Line Communication, October 1-2, 2009, Udine, Italy[20] V. Aisa: “Smart Plugs: the retrofitting devices for traditional appliances?”, Slides 40-47, Home & Building Days - Milano, 18 giugno 2010, http://www.expohb.eu/domotica/pdf2 010/Aisa_Indesit.pdf[21] Fred. C. Schweppe: “Frequency Adaptive, Power-Energy Re- Scheduler”, US patent N. 4,317,049, Massachusetts Institute of Technology, 1979[22] V. Aisa: “Dynamic Demand Control”, Slides 17-20, Home & Building Days - Milano, 18 giugno 2010, http://www.expohb.eu/domotica/pdf2 010/Aisa_Indesit.pdf[23] A. Suardi, S. Frattesi: “Dynamic Ancillary Service Provided By Loads With Inherent Energy Storage”, http://www.gridwiseac.org/pdfs/foru m_papers09/howe.pdf[24] Stefano Frattesi: “Worlds biggest trial of smart fridges unveiled”: http://www.youtube.com/watch?v=k AjEuZcSBGM [Indesit Company Spa – Fabriano (AN) - Italy] Page 24

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