Iisi tv6p887 894-khiyal592

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Iisi tv6p887 894-khiyal592

  1. 1. SMS Based Wireless Home Appliance Control System (HACS) for Automating Appliances and Security AbstractThis pape r mainly foc use s on the controlling of home a ppliances remote ly and providing sec uritywhe n the user is away from the pla ce. The system is SMS ba sed and use s wireless technology torevolutionize the standa rds of living. This system provides ide al solution to the problems fa ced byhome owners in daily life . The system is wireless therefore more ada ptable and cost-e ffective.The HACS system provides se curity a gainst intrus ion a s we ll as automates various home a ppli-anc es using SMS. The syste m uses GSM technology thus providing ubiquitous ac cess to the sys-tem for security and automated a pplia nce c ontrol.Ke ywords: Short Messa ge Se rvice (SMS), Globa l System for Mobile communication (GSM),Ra dio Frequenc y (RF), AT Comma nds, ubiquitous a cce ss and Automation. IntroductionThe aim of the paper is to investigate a cost effec tive solution that will provide c ontrolling ofhome appliance s remotely and will a lso ena ble home security aga inst intrusion in the a bse nce ofhome owner.The motivation is to fac ilitate the users to automate their homes having ubiquitous ac cess. Thesystem provide s availa bility due to development of a low cost syste m. The home a pplia nces con-trol syste m with a n affordable cost wa s thought to be built that should be mobile providing re-mote access to the appliances and a llowing home se curity.Home security has been a ma jor issue where crime is inc re asing and eve rybody wants to takeprope r measures to preve nt intrusion. In a ddition there wa s a nee d to automate home so that usercan take adva ntage of the technologic al advanc ement in such a way that a person getting off theoffice does not ge t melte d with the hot climate . Therefore this pa per proposes a system that al-lows user to be control home applia nces ubiquitous ly and also provide sec urity on detec tion of intr usion via SMS using GSM technol- ogy. The ne xt section will e xpla in the rela ted work; section 3 e xpla ins the proposed system, methodology and a lgor ithm. Section 4 discusses the framework, working, cha ra cteristics, stre ngths and constraints of the system. Section 5 ex- pla ins the results a nd section 6 is con- clusions and the future work.
  2. 2. Related WorkDelgado, Picking, and Grout (2006) c onsider the problems with the implementation of homeautomation systems. Furthermore the possible solutions a re devised through var ious networktechnologies. Se veral issues affecting home automation systems such as la ck of robustne ss, com-patibility issue a nd acceptability among the old and disa bled people are discussed.Ciubotaru-Petrescu, Chiciude an, C ioarga , and Stanescu (2006) present a design a nd implementa-tion of SMS ba sed control for monitor ing syste ms. The paper has three modules involving sens-ing unit for monitor ing the complex a pplica tions. A processing unit tha t is microcontrolle r a nd acommunic ation module that uses GPRS modem or cell phone via serial port RS-232. The SMS isused for sta tus re porting suc h as powe r fa ilure.In their paper, Conte and Sc aradozzi (2003) view home automation systems as multiple agentsystems (MAS). In the pape r home a utoma tion system ha s be en propose d that includes home a p-plia nces and devices that a re controlled a nd ma inta ine d for home mana geme nt. The ma jor task isto improve pe rforma nce.In their paper, Alkar and Buhur (2005) propose a n Internet Based Wireless Home AutomationSystem for Multifunctiona l De vice s. This paper proposes a low cost and flexible web-base d solu-tion but this system has some limitations such as the range and power failure.Murthy (2008) e xplores primary health-c are manage ment for the rural population. A solutionproposes the use of the mobile web-technologies providing the PHC se rvices to the rura l popula-tion. The system involve s the use of SMS and cell phone technology for informa tion ma nage -ment, transactiona l exchange and personal communica tion.Ja warka r, Ahme d, Ladhake, and Tha kare (2008) propose remote monitor ing through mobilephone involving the use of spoken c omma nds. The spoken commands are genera ted a nd sent inthe form of te xt SMS to the c ontrol system and then the microcontroller on the basis of SMStake s a dec ision of a pa rticula r ta sk.Potamitis, Georgila , Fakota kis, and Kokkina kis, G. (2003) suggest the use of speech to interactremote ly with the home applianc es to perform a particular action on beha lf of the use r. The ap-proac h is inc lined for people with disa bility to perform re al- life ope ra tions at home by directingapplianc es through spee ch. Voice separation strate gy is se lecte d to take appropriate decision byspeech recognition. PreliminariesHome Appliance Control System (HACS)Home applianc e control system is base d on GSM network technology for transmission of SMSfrom se nder to receiver. SMS sending a nd receiving is used for ubiquitous ac cess of appliance sand allowing brea ch control at home.The syste m proposes two sub-systems. Applianc e control subsystem enables the user to c ontrolhome appliance s remotely wherea s the security alert subsyste m provides the remote se curitymonitoring. The syste m is capa ble e nough to instruct user via SMS from a specific cell number tocha nge the condition of the home applianc e according to the user’s needs a nd requirements. These cond aspect is tha t of se curity a lert which is achieve d in a way tha t on the detection of intrusionthe system allows automatic gene ra tion of SMS thus ale rting the user against security risk.HACS syste m consists of the following compone nts (shown in Figure 1):-888
  3. 3. PC: This unit contains the software compone nts such as the HACS System through which theapplianc es a re controlled a nd home security is monitored.GSM Mode m It is a hardwa re compone nt that a llows the c apa bility to send and re ceive SMS to :and from the system. The communication with the syste m take s place via RS232 seria l port. Ce llphone c an be attac hed at the plac e of GSM hardware but it limits the ha rdware functionality suchas sending or receiving of SMS.Mobile Device: Ce llular phone containing SIM c ard has a specific number through which com-munication takes pla ce. The device communicates with the GSM Modem via radio frequency.Mobile user transmits SMS using GSM tec hnology.MethodologyThe me thodology followed in the HACS is give n as:- 889
  4. 4. SMS Based Wireless Home Appliance Control Sy stem • GSM hardware tests are run in or der to che ck the ha rdware support. The system will call GSM modem and it will ge t activated. • After ac tivation the Modem will chec k for hardwa re support. If the ha rdware is missing or some other hardwa re proble m there will be error, resulting in c ommunication fa ilure and the applica tion will be terminated. • If ha rdware responds the n the serial port will be opene d for communication a nd GSM hardware will allow tra nsmiss ion of SMS. • The system will the n c onnec t and a fte r connec tion establishme nt the syste m will be able to de tect intrus ion and will a le rt user about the bre ach and similarly the s yste m will update status of appliances by rec eiving SMS from the pre-de fined c ell number. • SMS will be sile ntly ignore d if cell numbe r is una uthor ize d.Pseudo codeThe pseudo code for HACS is give n as:-begin Run Tests If Tes t = 0 Terminate program If Tes t = 1 Communication = OK, port will open Click Connect Cont rols {Cj | j=1, 2, 3, 4} = enable If intrusion = 1 Send s ecurity alert If incoming SMS = 1 Simulate applianc esendCharacteristics of HACSThe propose d system chara cteristics involve remote controlling of applianc es, intrusion dete ction,system security a nd auto-conf igura tion such tha t system automatica lly adjusts the syste m settingson running ha rdware support c hec k. The system ha s useful fe atures such a s displaying of batteryleve l, charging status and signa l stre ngth of the mobile thus making system re liable.Strengths of HACSHACS syste m has ma ny advanta ges such as remote controlling of home a ppliances, ava ilabilityand ease of users. The user c an ge t ale rts anywhe re through the GSM te chnology thus ma king thesystem loca tion independent. The system c ontains low cost components easily available whichcuts down the overall system c ost.Moreove r system a lerts user a bout bre ach via SMS providing home se curity a lso it allows secureaccess due to pre -configure d number. The ease of deployme nt is due to wire less mode of c om-munication. GSM technology provides the benefit that the system is ac cessible in re mote a reas aswell. The syste m relia bility increa se s due to the useful features suc h as batte ry leve l che cking,cha rging status and signa l stre ngth indicating the system about threa ts. The system integration is890
  5. 5. simple and is also sc alable and exte nsible. The auto-configuration c apability allows the system auto enabling/disabling of certain features. Constraints of HACS The syste m functionality is ba sed on GSM te chnology so the technologic al constraints must be kept in mind. The system is vulnerable to power failure but this disruption ca n be avoided by at-taching the volta ge source thus a llowing users to a vail the grea t adva ntage of this system.Conclusion and Future WorkIn the paper low cost, secure , ubiquitous ly accessible, a uto-configura ble, remote ly c ontrolled so-lution for a utoma tion of homes has been introduc ed. The a pproac h discusse d in the paper is noveland has achieve d the ta rget to c ontrol home appliances re motely using the SMS-ba sed systemsa tisfying user needs a nd requirements.GSM tec hnology capable solution ha s proved to be controlled remotely, provide home security .and is c ost-effec tive a s c ompa re d to the previously existing syste ms. Henc e we ca n conclude thatthe required goals and objec tives of HACS have been achie ved.The ba sic leve l of home appliance control and remote monitoring ha s be en impleme nted. Thesystem is e xtensible and more levels can be further developed using a utoma tic motion/glassbreaking detectors so the solution can be integrated with these and other detection systems. Incase of re mote monitor ing other applianc es c an a lso be monitored such that if the leve l of tem-perature rises above certain leve l then it should generate SMS or sensors c an a lso be applied thatcan dete ct gas, smoke or fire in c ase of eme rgenc y the system will automatic ally ge nerate SMS.In future the system will be small box combining the PC and GSM modem. This hardware ca n beimporte d from Taiwa n and Singapore. The ha rdware will be self c ontained a nd ca nnot be prone toele ctric failure . This a pplia nce will have its own e ncapsulated UPS and c harging system.893 891
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