- University of Huddersfield Repository
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1. 1 A Sashima Y Inoue T Ikeda T Yamashita and K Kurumatani CONSORTS S A mobile sensing platform for context aware services in Intelligent Sensors Sensor Networks and Information Processing ISSNIP International Conference on 2008 pp 417 422 2 J Nichols et al Generating remote control interfaces for complex appliances in Proceedings of the 15th Annual Copyright c IARIA 2015 ISBN 978 1 61208 416 9 ACM Symposium on User Interface Software and Technology 2002 pp 161 170 3 F Xia Y C Tian Y Li and Y Sung Wireless sensor actuator network design for mobile control applications Sensors vol 7 2007 pp 2157 2173 4 S Yan C Qiang and L Hong Smart home based on wireless sensor actuator networks China Communications vol 8 2011 pp 102 109 5 W Lumpkins The internet of things meets cloud computing Standards Corner Consumer Electronics Magazine IEEE vol 2 2013 pp 47 51 6 L Trappeniers M A Feki F Kawsar and M Boussard The internet of things the next technological revolution Computer vol 46 2013 pp 0024 25 7 P Bellavista A Corradi M Fanelli and L Foschini A survey of context data distribution for mobile ubiquitous systems ACM Computing Surveys CSUR vol 44 2012 p 24 8 D Ding R A Cooper P F Pasquina and L Fici Pasquina Sensor technology for smart homes Maturitas vol 69 2011 pp 131 136 9 N La2. Light Brightness and automation cooling Transfers information written or read to the successive interface Collect data from Sensor i A age Sensor2 Sensor3 on Sensor n A Database Actuator n Actuator 2 Actuator Figure 4 Wireless communications over ad hoc and infrastructure networks V APPLICATION CONTROL FOR BOTH MICROCONTROLLER UNIT AND IPHONE A Function to Control Microcontroller Unit The device can be used to control actions by for example sending a message via the mobile or keyboard including specific characters such as letters and numbers The software program should decode the character message to be compatible with other details regarding the electronic appliances to be controlled The action control can be accomplished through the output of the microcontroller unit after running the software program and passing the complier through the test program in Debugger Keil uVision3 for the debugger instruction At the same time the program will also 69 INFOCOMP 2015 The Fifth International Conference on Advanced Communications and Computation run in STC ISP exe after selecting the hex file and the port from the PC to be ready for sending the character or action over wired and wireless technology The following function may be used to control home devices If OnOff 0 RELAYL1 0x00 If OnOff a RELAYLI OxFF B Function to Control iPhone The iPhone 4 SDK
3. in the smart home from different locations and over various distances Keywords smartphone remote control smart home ad hoc context aware I INTRODUCTION Nowadays smartphones are becoming increasingly successful in the area of context aware services such as smart home technology computer assisted homecare and healthcare and other applications for social and safety purposes Such services appear to recognise users contexts for example their location current activities identity and surrounding environment 1 Additionally there has been rapid growth in the field of remote control home automation which enables smartphones to be used to control electronic devices in the household An increasing number of home appliances such as heating TVs lights washing machines A V players and many other products can be embedded with computer technology and controlled by smartphones 2 There are many forms of accessible media which can be used for wireless communication by remote control for example internet services SMS with GSM mobile phones and multi agent systems MAS These systems allow different actions to be performed such as switching a device on or off Copyright c IARIA 2015 ISBN 978 1 61208 416 9 Joan Lu School of Computing and Engineering University of Huddersfield Huddersfield UK e mail j lu hud ac uk controlling the level of sound or temperature and other functions Such wireless networks of sens
4. post 7 PM Figure 5 Smartphone iOS interface for smart home application I1D 668 amp RN 1 amp O Lo0 amp B HbS amp S Ls amp H Hhn amp U Lu amp L 00562 amp T 22 1 2 amp D 03338 amp Index 66 RoomNumber 1 Obstacle Lo Body Hb Smoke Ls Humidity Hh Sound Lu Light lIux o0562 Temperature 22 12 Distance 0333 Split post Figure 6 Values collected from seven sensors by iPhone 70 INFOCOMP 2015 The Fifth International Conference on Advanced Communications and Computation VII TESTING AND EVALUATION A Monitoring Environment In order to investigate the performance of the monitoring and control model within a real time environment situation the iPhone was used to examine and test access time over various distances The experiment concentrated on the time period required to connect the Wi Fly access with the smartphone to remotely gather data from the lab environment and to remotely control the prototype automation system In this test the iPhone mobile used was linked to the CFSocket network via ad hoc wireless communication The access period was measured five times and each time the test was initiated when the smartphone holder moved into another location The distance of measurement ranged from 1 metre to 25 metres and the Wi Fly function on the iPhone was updated to start the collection of information from the sensors Once the prototype sensors were connected with the TCP IP socket an ind
5. version IOS 6 1 3 and Apple iMac version 10 7 5 run with Xcode version 4 6 2 were used in this experiment Objective C and Cocoa Touch were the programs most implemented in this part of the project with Cocoa Touch used by Objective C offering the structure for iPhone application One of the most important applications for the iPhone is the connection of the CFSocket function to create a TCP socket as well as to set up the communication over the ad hoc network For a low level structure the first step is to build the socket context the second is to create the service socket as a TCP and set a callback and the third is to set a local address which is used to connect the socket to the server The final step when the interface for remote home control is linked up is to offer options for action For example the user may decide whether the residence needs to switch on or off electronic devices such as lights fan heater or speakers or all the appliances together For the first step of remote control the code used involves simple IF and ELSE statements to regulate this When the IF statement is defined UlwatViewController on status is set to character and when the ELSE statement is defined UlIwatViewController off status is set to character a The same function can be used for the remaining devices e g BAction switchLight1 ValueChanged id sender NSString typecode If wat ViewController sw
6. Figure 7 Time taken to monitor environment by touch screen Copyright c IARIA 2015 ISBN 978 1 61208 416 9 Average u s p c i Q 74 i E Microsecon 5m 10m 15m 20m 25m Distance Meter Figure 8 Average time taken to monitor environment by touch screen B Device Control For the home automation function on the other hand the performance of the prototype system was able to reach a distance of up to 30m All the devices could be controlled from 5m to 30m but after that the system only gained a response from some of the devices 1 e LED1 and LED2 Table II TEST RESULTS FOR HOME AUTOMATION Table H illustrates the control of four electronic appliances comprising two fans and two LED lights using a mobile phone the Apple iOS 6 It was observed that most of the devices responded to the smartphone function from distances of between 5m and 25m as shown by the vV symbol However when the distance increased to 30m some devices were unable to respond to the action command as shown by the symbol x The test focused mainly on functionality and distance VII CONCLUSION AND FUTURE WORK A Conclusion This study presents an important part of a prototype system for remote control monitoring of smart home facilities using smartphones and low price commercial sensor equipment The system architecture presented is a wireless system that may be used to integrate the smartphone of the user with th
7. K University of HUDDERSFIELD University of Huddersfield Repository Ghabar Omar and Lu Joan Remote Control and Monitoring of Smart Home Facilities via Smartphone with Wi Fly Original Citation Ghabar Omar and Lu Joan 2015 Remote Control and Monitoring of Smart Home Facilities via Smartphone with W1 Fly In Proceedings of The Fifth International Conference on Advanced Communications and Computation INFOCOMP 2015 IARIA Brussels Belgium pp 66 73 ISBN 978 1 61208 416 9 This version is available at http eprints hud ac uk 25375 The University Repository is a digital collection of the research output of the University available on Open Access Copyright and Moral Rights for the items on this site are retained by the individual author and or other copyright owners Users may access full items free of charge copies of full text items generally can be reproduced displayed or performed and given to third parties in any format or medium for personal research or study educational or not for profit purposes without prior permission or charge provided The authors title and full bibliographic details is credited in any copy e A hyperlink and or URL is included for the original metadata page and The content is not changed in any way For more information including our policy and submission procedure please contact the Repository Team at E mailbox hud ac uk http eprints hud ac uk INFOCOMP 2015 The Fifth Inte
8. adapter 1 to start an automation connection with a server and 2 to establish automated tracking of a connection from the remote host 21 These setups need the Chortle series access point 1100 to connect the infrastructure network with the database server When wireless communication for the local area network is set up using a W1 Fly adapter the device will automatically connect to the network For context update and request to the network the following commands are used type 3 dollar signs to see message with CMD Scan scan available wireless network Set wlan ssid chortle ask to join the network Set ip proto turn HTTP mode 0x10 and TCP mode 0x02 Set ip host 10 0 0 11 web server DSN Set ip remote 80 set web server port Set sys autoconn 1 automatically connect Set com remote GET work2 allsensors php Sample server application Set uart mode 2 automatically trigger mode Save and reboot save configuration and restart Copyright c IARIA 2015 ISBN 978 1 61208 416 9 TABLE I ELECTRONIC APPLIANCE ENGAGEMENT Appliance Appliance Models Functionality Employed information gathered from sensors and control the actuator Gathering data from home environment Sensors Temperature Sound Brightness Smoke Humidity Distance Human Body and Obstacle Avoidance Wireless adapter Wi Fly RN 370 sensors and pre Embedded MCU STC89C52RC pe process raw data point 1100 Home Fan and
9. and S M Yuan User configurable semantic home automation Computer Standards amp Interfaces vol 34 2012 pp 171 188 17 A Alheraish Design and implementation of home automation system Consumer Electronics IEEE Transactions on vol 50 2004 pp 1087 1092 18 R Acker and M Massoth Secure ubiquitous house and facility control solution in Internet and Web Applications and Services ICIW 2010 Fifth International Conference on 2010 pp 262 267 19 S R Das S Chita N Peterson B Shirazi and M Bhadkamkar Home automation and security for mobile devices in Pervasive Computing and Communications Workshops PERCOM Workshops 2011 IEEE International Conference on 2011 pp 141 146 20 O Ghabar and J Lu The Designing and Implementation of a Smart Home System with Wireless Sensor Actuator and Smartphone INFOCOMP 2014 The Fourth International 72 INFOCOMP 2015 The Fifth International Conference on Advanced Communications and Computation Conference on Advanced Communications and Computation 2014 pp 56 64 21 R Networks 2010 WiFly Serial Adapter RN 370 amp RN 374 Install Guide and User Manual 1 00 pp 1 21 Available www rovingnetworks com Copyright c IARIA 2015 ISBN 978 1 61208 416 9 73
10. ch as an iPhone or PC The data is also transferred over a reliable TCP IP socket using an ad hoc or infrastructure network C Microcontroller Unit Logic Converter The STC89Cxx series MCU is an important part of the system design as it is an 8 bit single chip microcontroller This chip is compatible with outlying device communication that monitors resident activity and motion by gathering data from sensors interfaced with the Wi Fly wireless transceiver and embedded with 64K bytes flash memory to store data which is shared with In system Programming ISP It also has an In System Application ISA to assist the operator Sensors Obstacle Avoidance t Human Body Smoke J J Brightness Humidity Temperature Ultrasonic Distance Sound J Fant Figure 1 Framework layers in the prototype system Copyright c IARIA 2015 ISBN 978 1 61208 416 9 These communication requirements are based on a microcontroller which needs to be adapted with a Universal Asynchronous Receiver Transmitter UART 18 This is an appliance that transmits and receives raw information from the choice of MCU to support low level programming language C D Relay Actuators Function An actuator SRD 05VDC SL C is an electrical advice used to control electronic appliances by opening or closing the switches of other circuits It has an electromagnetic coil to operate the swit
11. ch in two positions ON or OFF It is activated by signal or electric current that flows through the coil as a result of which the magnetic field attracts an armature Once the current to the loop is interrupted the armature is about twice as strong as the magnetic force to return it to its relaxed situation This actuator is designed to be operated with DC voltage and the diode on the coil is often installed to disable the magnetic field from disappearing Most actuators are designed to trigger as quickly as possible to achieve the actions Figure 3 shows the relay device used in this research and its connection with other electrical and electronic devices in the lab CSc lt p KF Obstacle Avoidance Sensor Human Body Sensor Smoke Sensor Light Brightness Sensor Humidity Sensor Temperature Sensor Ultrasonic Distance Sensor Sound Sensor Figure 2 Smart home sensors design Figure 3 The MCU WI Fly RN 370 and four actuators connected to LEDs and fans 68 INFOCOMP 2015 The Fifth International Conference on Advanced Communications and Computation IV WIRELESS CONNECTION OF THE ACTUATORS AND SENSORS The prototype system in the smart home area is described by the diagram in Figure 4 The connection and communications are variable to enable low cost electronics to be employed for the design and implementation of the system The Wi Fi network is employed to make the connection between the electronic devices as i
12. e end devices in the smart home It is also hypothesised that this system could be used to enhance the comfort and security of an elderly or disabled person living alone In addition the different features of the prototype such as functions elaborated by smart home technologies have been described as listed below 1 A model for the incorporation of sensors actuators wireless adapter WI Fly RN 370 and computer 71 INFOCOMP 2015 The Fifth International Conference on Advanced Communications and Computation services for remote control in the smart home environment has been theoretically and practically demonstrated 2 Home automation has been part of the research and therefore a number of appliances have been involved in the prototype such as an actuator to control fans and LED lights using a smartphone 3 The use of ad hoc and wireless network infrastructures in this context has been explained 4 The uses of smartphone applications to achieve smart home automation between the end user and computer service have been described 5 The mobile programming was run with the iPhone SDK using the TCP IP socket to communicate between Wi Fly and iPhone in order to collect information from sensors and to control home facilities the effectiveness of this has been tested over a range of distances This paper has focused on the performance of a prototype system combining context aware services with the remote control of home appliance
13. ication of whether the network was connected or not was given by receiving the notification of Connection is successful please login or Connection is not successful please try again The remote control data gathering would begin when a successful connection was established The results in Figure 7 show a statistical examination of the system design used to monitor the smart home environment and the outcome of requests regarding security events The experiment was repeated five times for each distance The performance of all service providers already in Wi1 Fly networks were tested and showed good stability in terms of the implementation of a wireless link Comparisons can be made between the performance of this prototype system using the results for time response in monitoring the environment and controlling home facilities with other results for the same situation but using different technologies and methods 14 Figure 8 shows an evaluation of the results of home environment monitoring using eight sensors and different locations times and IDs The average time response using the Wi Fly 802 11 b g serial adapter and iPhone smartphone was 5 406 u s at a distance of 0cm which increased to 5 838 u s at a distance of 25m The signal strength then began to decrease at a distance of 27m Test u s H Test2 u s i Test3 u s Test4 u s Test5 u s Average u s T tS u 95 a4 Yn g 8 EG eS Distance Meter
14. ifferent wireless protocols for ease of use in control and data gathering Studies by Hoof et al 14 show that trends in smart home technology are based on the technical potential of their function but are seldom focused on the needs and requirements of residents Therefore new techniques must take into account the attitudes of occupants and earn their approval of intelligent home equipment particularly in the context of provision for the aging and disabled population In general smart home technologies in the residential environment require five things to make them smart which are wireless technology home automation remote control intelligent control and a database The most important features of this technology are the actuators and sensors An actuator is used to create an action according to the data collected by sensors which are used to decide the action Currently developments in technologies permit inhabitants to control home appliances without difficulty by operating devices such as a remote control smartphone or PC through a mere click The smart home prototype is typically based in a house with a convenient Copyright c IARIA 2015 ISBN 978 1 61208 416 9 wireless communication system security and energy saving power source to reduce the input of the user Smart home automation is an important subject it refers to the automatic control of equipment and devices in the smart home environment Many studies have
15. itchLight1 on typecode 0 else typecode a alert release VI MOBILE APPLICATION INTERFACES A mobile application in a smart home system is a critical interface between the consumer and the computer system It implements residents control commands and gathers context aware information using HTTP protocol as well as SPLIT and POST functions Three of the selected prototype systems iOS for the apparatus are as follows In Figure 5 which is a sample data interface a is a login screen interface b is a context monitor screen interface and c displays the status of the device and the control interface The system design uses parts of the embedded system sensors actuators and a smartphone located in the smart home environment to control home electrical devices using home automation within a context aware computation service prototype This Copyright c IARIA 2015 ISBN 978 1 61208 416 9 section describes the smartphone iOS interface used to offer the implementation of context aware services using the functions in the model system The sensing data is first collected by the MCU and then sent to the smartphone via the Wi Fly transceiver as shown in Figure 6 The figure shows the last observations of the experiment exploring the gathering of information from sensors using the W1 Fly serial adapter and iPhone Stringi String2 Strings String4 Strings Strings String7 Strings Stringa String10
16. nghammer and R Kays Evaluation of wireless smart metering technologies in realistic indoor channels Wireless Communication Systems ISWCS 2011 8th International Symposium on 2011 pp 387 391 10 T Han B Han L Zhang X Zhang and D Yang Coexistence study for WiFi and ZigBee under smart home scenarios Proc 3rd IEEE International Conference on Network Infrastructure and Digital Content 2012 pp 669 674 11 S O Al Mehairi H Barada and M A Qutayri Integration of technologies for smart home application ed 2007 pp 241 246 12 Y Tajika T Saito K Teramoto N Oosaka and M Isshiki Networked home appliance system using Bluetooth technology integrating appliance control monitoring with Internet service Consumer Electronics IEEE Transactions on vol 49 2003 pp 1043 1048 13 J Zhang G Song H Wang and T Meng Design of a wireless sensor network based monitoring system for home automation ed 2011 pp 57 60 14 J Van Hoof H Kort P Rutten and M Duijnstee Ageing in place with the use of ambient intelligence technology Perspectives of older users International Journal of Medical Informatics vol 80 2011 pp 310 331 15 C K hnel T Westermann F Hemmert S Kratz A M ller and S M ller I m home Defining and evaluating a gesture set for smart home control International Journal of Human Computer Studies vol 69 2011 pp 693 704 16 Y W Kao
17. onal Conference on Advanced Communications and Computation incorporate various advances in technology into the smart home prototype IHI SYSTEM DESIGN AND IMPLEMENTATION Figure 1 illustrates the comprehensive system architecture from the viewpoint of communication electronic devices and data management These aspects are described in the following sections A Sensors Design There are different types of sensors and actuators involved in the prototype system They can also be used to obtain a context using systems embedded in the smart home environment These sensors include an obstacle avoidance sensor smoke sensor human detection sensor brightness sensor humidity sensor ultrasonic distance sensor and sound sensors see Figure 2 for the different types of sensors used in the system design The main aim of this function is to transfigure real physical variables into digital variables which are then processed in the computing system The acquisition of this type of context will need features such as a wireless adapter sensors an embedded system and the end user client More detail can be found in 20 B Wi Fly RN 370 The wireless adapter is powered by an external AC to 5V DC and two AAA batteries which can run up to eight hours on full charge The device is connected using only a RS 232 serial port interface of the DB9 It receives information from sensors over the MCU and then sends this information to end devices su
18. ors and actuators 3 4 have become an area of active research Sensors and actuators can be used to improve the interaction between the client and the physical environment It is thought that by 2020 5 there will be between 50 and 100 billion appliances connected to the internet Researchers are trying to promote changes to the mode by which each object is activated 6 In addition to sensor technology the mobile phone has become increasingly powerful in the field of computing as well as that of communication This paper defines and explains the design of an iPhone smart home system using the Wi Fly module for monitoring safety in the home environment as well as for controlling electronic appliances in the same house In effect therefore the prototype system is responsible for both monitoring and control so this research offers a mixture of these two functions The model is highly flexible and can be applied to several areas of study This study describes the smart home architecture that can remotely monitor home devices and also provide real time monitoring of home safety status through the implementation of a smartphone It focuses on a system which ensures a high level of service for the intelligent home including activity delay when the resident leaves the building Thus the proposed system provides a personal device for monitoring and control of different circumstances through the iPhone interfaces which are used to process contex
19. proposed designs for the system and even smart home products 15 In the system of intelligent home equipment and appliances human control is generally easy A home automation system typically includes an internal network and practical and intelligent rules and equipment for specific use in the home network Systems and equipment can be controlled automatically and used to provide information on the home automation environment Another facility is that changing the state or mode of a device can change or trigger other devices in the smart home environment 16 An article by Alheraish describes the design of a remote control model entitled Mobile to Machine M2M based on the GSM network The system consists of an embedded system sensor relay and a mobile to control home brightness monitoring and security issues Some advantages were observed during the experimental stage of this model for example the system has the ability to use different techniques such as SMS and GPRS and it is appropriate for simple applications using ADC or DAC On the other hand it also has some drawbacks for which the designer needs to find suitable solutions It will be difficult to make the model M2M viable before the solutions to these problem are found 17 Another study by Acker and Massoth describes a system design solution for monitoring and controlling smart home technologies and also for secure access via smartphone The model system involves a varie
20. rnational Conference on Advanced Communications and Computation Remote Control and Monitoring of Smart Home Facilities via Smartphone with Wi Fly Omar Ghabar School of Computing and Engineering University of Huddersfield Huddersfield UK e mail omar ghabar hud ac uk Abstract Due to the widespread ownership of smartphone devices the application of mobile technologies to enhance the monitoring and control of smart home facilities has attracted much academic attention This study indicates that tools already in the possession of the end user can be a significant part of the specific context aware system in the smart home The behaviour of the system in the context of existing systems will reflect the intention of the client This model system offers a diverse architectural concept for Wireless Sensor Actuator Mobile Computing in a Smart Home WiSAMCinSH and consists of sensors and actuators in various communication channels with different capacities paradigms costs and degree of communication reliability This paper focuses on the utilization of end users smartphone applications to control home devices and to enable monitoring of the context aware environment in the smart home to fulfil the needs of the ageing population It investigates the application of an iPhone to supervise smart home monitoring and control electrical devices and through this approach after initial setup of the mobile application a user can control devices
21. s The results show that both monitoring and control of home facilities can be achieved very successfully using a smartphone information was gathered from all sensors with a very short time lapse of between 5 406 u s over a distance of Ocm and 5 838 u s over 25m Moreover the smartphone was able to remotely control all the devices over a distance of 5m to 20m though the fans failed to respond to the action command over 25m Nevertheless there are still some difficulties which require further analysis and discussion B Future Work Monitoring and automation control of the smart home is an important research application and may be especially valuable for elderly people who live alone The target is clearly to provide a good service and environment by employing advanced technology and methods The goals for future work must be case based reasoning taking into consideration the needs and requirements of the elderly or disabled end user and decision making rules regarding the information required from various sensors and how this is used to control electrical devices The precise nature of the set of rules and the influencing factors within various sets of context aware information may be calculated and determined using methods such as a Bayesian network Another future piece of work should be to use computing algorithms to investigate the quality of the context which has been created using information from various sensors REFERENCES
22. t aware information The main benefit of the iPhone compared to the use of a PC is that it can be used from different locations Various context aware data to be monitored using Wi Fly were tested in the laboratory using the iPhone There are very few studies offering a complete explanation of the actuators sensors and robotics built into context aware system design as this field includes a wide variety of technologies and also requires several application situations which might be difficult to provide and assess Analysis of specific problems is still at the theoretical stage and few critical studies have yet offered a clear and extensive description relating to quality of context 7 There has also been little previous research and development work carried out into aspects of the smart home and even the number of users has not been clearly determined Most research has concentrated on feasibility 66 INFOCOMP 2015 The Fifth International Conference on Advanced Communications and Computation studies and the use of interactive communication technologies with context aware applications 8 This prototype design attempts to offer a solution for the challenges relating to wireless sensor actuator mobile computing in a smart home In designing and implementing the architecture of the technologies for such a system it 1s therefore important to incorporate the sensors and actuator devices for computational issues which support the occ
23. t is widely available in most home areas The sensors and actuators are connected by wireless infrastructure to collect the data from the sensors and perform the control actions The wireless adapter module RN 370 supports ad hoc and infrastructure networking modes The user interacts with the system using her his smartphone The requirements for the wireless prototype are given in Table I The computing of the context data is done by the computer service and the decision making algorithms A Ad hoc Configuration To configure the ad hoc mode the Wi Fly adapter needs to be set up for the ad hoc network within the hardware or software instructions To permit the ad hoc network to establish communication with a smartphone through hardware switch 1 must be turned ON There are different kinds of connection available to create Wi Fi applications for example remote environment sensors control and monitoring of appliances diagnostics and mobile phone connections such as GPS Therefore Wi Fly configurations can be set as peer to peer ad hoc networking to an iPhone by using the IP address 169 254 1 1 and subnet mask 255 255 0 0 with the need to set the Service Set Identifier SSID and Wi Fly GSX 21 in a wireless mobile computing network 21 B Infrastructure Configuration To configure the infrastructure mode using software to Start communication and associate the network it is necessary to set up two commands for the wireless
24. ty of techniques and equipment to control home devices such as a BlackBerry smartphone a sensors box Allnet ALL 4000 and BlackBerry Enterprise Solution The appliances connected included TV and Hi Fi and Java Development Environment JDE software was used The results which they report include three different settings of access time and show respectable results in terms of usability However the drawback was that the BlackBerry smartphone software would need to be regularly updated from BES in order to maintain a high level of usability 18 Das et al s 19 study makes specific reference to the circumstances of intelligent home security using smartphones They were able to remotely contact and control electronic security devices and integrate other services This study managed home automation and security HASec through the design and implementation of smartphone devices processing systems demonstrating that mobile technology can be used to provide the necessary security for products as well as operations related to control The HASec system permits different types of mobile phone to access the full Web browser Within the smart home setting one very important development would be to make context aware applications available which could assist older people by making them more comfortable and making the activities of daily life easier To succeed in this goal the current study seeks to 67 INFOCOMP 2015 The Fifth Internati
25. upants interaction with the physical environment In the course of this study a general context awareness model is investigated as well as technological solutions that have the capability of sensing monitoring and controlling automation in the smart home The remaining sections of the paper are structured as follows Section II describes related studies with respect to wireless sensor actuator and mobile computing in the smart home Section III presents the system architecture for the proposed model comprising Wi Fly adapter sensors actuators microcontroller unit end user and database server Section IV outlines the infrastructure for wireless adapter network implementation Section V defines techniques to set up application control for both the smartphone and the embedded system and Section VI offers the smartphone interfaces Section VII considers and evaluates the results and finally Section VIII provides the conclusion and suggestions for future work II RELATED WORK Wireless technologies in the smart home have been studied by many researchers These studies have used different types of wireless technology such as Wi Fi IEEE 802 15 4 Bluetooth GSM ZigBee and Konnex RF KNX RF 9 10 11 12 and much progress is currently being made on this issue One of the most popular examples is the use of wireless sensors and actuators 13 but different kinds of technology and home automation devices have been integrated with d
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