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literature review of gsm based lpg gas leakage detector - jikku - 08-16-2017 The literature related to the research topic has been reviewed for last twenty years in order to find out work carried out by various researchers. There are many systems for remote monitoring and control designed as commercial products or experimental research platforms. It is noticed that most of the research carried out belongs to the following categories a. Internet based Monitoring using Servers, GPRS modems, etc. with different approaches. b. GSM-SMS protocols using GSM module individually or in combination with Internet Technologies. c. Monitoring using Wireless Sensor Networks. d. Wireless Monitoring using Bluetooth, Wi-Fi, Zigbee and RF. e. Applications have varied widely like Home Automation, Security Systems, Biomedical applications, Agriculture, Environment, Reservoir, Bridge health monitoring, etc. 2.1.1 Internet Based Monitoring Internet monitoring is one of the common approaches for remote monitoring. Many researchers have worked in field of Internet based remote monitoring. (Saito et al., 2000) developed home gateway system for interconnecting home network consisting of IEE 1394 AV network and X10 power line home automation network with Internet. This provided remote access functions from Internet for digital AV appliances like Digital Video Camera, Digital VCR connected to IEE 1394 network and home appliances like TV, desk lamp, electric fan connected to X10 controller. (Al-Ali and Al-Rousan, 2004) developed Java based home automation system via World Wide Web. The home appliances were controlled from ports of embedded system board connected to PC based server at home. (Alkar and Buhur, 2005) implemented Internet based wireless flexible solution where home appliances are connected to slave node. The slave nodes communicate with master node through RF and master node has serial RS232 page link with PC server. The nodes are based on PIC 16F877 c. PC server is formed of a user interface component, the database and the web server components. An Internet page has been setup running on a Web server. The user interface and the Internet front end are connected to a backend data base server. The control of devices is established and their condition is monitored through the Internet. (Al-Khateeb et al., 2009) used X10 controller interfaced through serial port to PC server for control of devices. The Common Gateway Interface (CGI) is used to interface between the browser and the X10 protocol via http connection. The server executes CGI programs in order to satisfy a particular request from the browser, which expresses its request using the http. (Peng Liu et al., 2007) developed model of web services based email extension for remote monitoring of embedded systems which integrates web services into emails. It uses a general purpose email messaging framework to connect devices and manipulators. This low cost model fits for systems with low connection bandwidth, small data transportation volume and non realtime control, e.g., monitoring of home appliances and remote meter-reading. (Tan and Soy, 2002) developed a system for controlling home electrical appliances over the Internet by using Bluetooth wireless technology to provide a page link from the appliance to the Internet and Wireless Application Protocol (WAP) to provide a data page link between the Internet and a mobile phone. However, technical details relating controller are not revealed. (Nikolova et al., 2002) demonstrated that the control of home appliances can be extended beyond the home network to wireless mobile networks without any modification in the network specifications. This was accomplished by developing and implementing a HAVi (Home Audio Video Interoperability) - WAP UI gateway that intermediates between a wired home network and a wireless communication network using HAVi and WAP specifications, respectively. The gateway use both pull and push technologies, improves the network integration and provides opportunities for developing applications that combine mobile devices with home network devices. (Yen-Shin Lai et al., 2002) developed an Internet-based monitoring and control of fuzzy controlled inverter for air conditioning system. The system consists of client/server, programmable logic controller, D/A modules, inverters, induction motors and the temperature sensing modules. The client accepts the command from the user and can also access the database created in server, using Internet Explorer (IE) Browser. The server performs function of fuzzy logic control, communication interface between server and PLC, and receiving command from client. Furthermore, the server also creates a database of the sensed temperature, speed of inverter-controlled motor drives, and reference command. (Ximin et al., 2005) designed and implemented an Internet home automation system. The design uses an embedded controller based on C8051F005 microcontroller which is connected to a PCbased home Web server via RS232 serial port. The home appliances are connected to the input/output ports and the sensors are connected to the analog/digital converter channels of the embedded controller. The software of the system is based on the combination of Keil C, Java Server Pages, and JavaBeans, and dynamic DNS service (DDNS) client. Password protection is used to block the unauthorized user from accessing to the server. (Colak Ilhami et al., 2008) developed Internet controlled Heating Ventilation Air Conditioning (HVAC) system. The system can be controlled by three different units (web based remote control, remote control by hand-held device and keypad control mounted on AC). The hardware system of AC is controlled by PIC16F877 microcontroller. A DAQ board inserted into PCI bus of web server is used to control system over web. User is able to access system parameters over web by logging and setting parameters on forms available on main control page. User submits forms to web server having CGI program which performs requested tasks and reports status of system operation. The current operational parameters of the system are measured by microcontroller and displayed on LCD. Using web camera focused on LCD, these parameters are monitored online by client PC. (Chen Chao et al., 2009) developed a remote wireless monitoring system for off grid Wind turbine based on the GPRS and the Internet. The remote monitoring system is made up of three parts: controlling terminal, central monitoring computer and communication network. Controlling terminal consists of microcontroller ARM7 LM3S1138, data acquisition module and GPRS communication module WAVECOM Q2406B connected to ARM7 system using serial port. GPRS module sends parameters relating wind turbine to central monitoring computer. The client can access central monitoring computer server through Internet and know parameters of different wind turbines. (Kumari and Malleswaran, 2010) developed real time based equipment condition monitoring and controlling system using embedded web based technology which directly connects the equipment to network as a node. The embedded system consists of ARM7 based LPC 2148 . literature review of gsm based lpg gas leakage detector - hareend - 08-16-2017 Ideal gas sensor is used to detect the presence of a dangerous LPG leak in your car or in a service station, storage tank environment. This unit can be easily incorporated into an alarm unit, to sound an alarm or give a visual indication of the LPG concentration. The sensor has excellent sensitivity combined with a quick response time. The sensor can also sense iso-butane, propane, LNG and cigarette smoke. If the LPG sensor senses any gas leakage from storage the output of this sensor goes low. This low signal is monitored by the microcontroller and it will identify the gas leakage. Now the microcontroller is turn on LED and Buzzer. After few milliseconds delay, it also turn on exhaust fan for throwing gas out and continue send messages as GAS LEAKAGE to a mobile no, written in c-code. literature review of gsm based lpg gas leakage detector - nick09 - 08-16-2017 i want a literature review of a gsm based gas leakage detection system. |