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International Journal of Applied Engineering Research, ISSN 0973-4562 Vol.7 No.11 (2012)© Research India Publications; http://www.ripublication.com/ijaer.htmSmart Data Acquisition system using M2M CommunicationB. H. Pansambal 1 , Prof. R. D. Kokate 21 Jawaharlal Nehru Engineering College Aurangabad.2 Jawaharlal Nehru Engineering College Aurangabad.1 bpansambal@gmail.com,Abstract: M2M communication is introduced to reduce humaninterference, response time & improve accuracy of anysystem. Wireless GSM communication networks arebecoming faster & reliable with each next generation. Thesecharacteristics of networks can be used to make industrialapplications more flexible by providing remote accessibility.This system is designed & proposed for remote assistance forindustrial embedded application through Wireless GSMnetwork services like SMS. System will continuously monitor,maintain and lock different parameters of boiler liketemperatures, liquid level and pressure .In case perceivedvalue exceeds than set range, controlling action will beinitiated and same is informed to remote server as well asoperator. The operator can monitor and update set pointdirectly via SMS or remote server.Keywords : Smart DAS,M2M, GSM, SMS,2 rdkokate12@gmail.com3. PROBLEM STATEMENTSIn processing plants the DAS systems have various inputand output parameters to be observed, controlled andregulated. A main problem is to acquire and transmit suchhuge data from remote location through wired or wirelessnetwork in real time. Wireless networks using radio frequencyis having wide coverage area but they get interrupted byobstacles like walls, building etc. such wireless systems aremore complex. Also the cost of implementation issignificantly high.The challenge is to provide cost effective, simple andalways-on wireless solution for communication.PressuresensorPressureActuatorAir flowactuator1. INTRODUCTION2.Water levelsensorCoal levelsensorTemperaturesensorSignal Con ditio ning circuits & AD CMicrocontrollerAir pressuresnsorCoal levelactuatorTraditional SCADA SystemWaterregulatorLocalDASServerFigure 1. Role of M2M communication inIndustrial automationNow a day’s many embedded Data Acquisition [DAS]systems are being used in industries. Majority among them areeither stand alone or interacting with users through somestandard communication interfaces like USB, Serial or Parallelcommunication, Controller Area Network(CAN) bus protocol.But to assist these systems either operator has to be inproximity of few meters or system need to be interfaced withinternet enabled PC/Server for extending the range ofaccessibility. Figure. 1 shows role of M2M communication inindustrial automation application.This work focuses on particular problem of operatorinvolvement and lack of centralized data logging, correlationand analysis functionality needed to improve decision makingpower remotely. The architecture uses software and hardwarecomponents already available and it does not required anyimprovement or modification to current GSM network, whilethe existing DAS systems can easily become smarter andflexible by enabling M2M Communication.[3]Figure 2. Smart Data Acquisition System withM2M Communication4. PROPOSED SOLUTIONSDAS systems used today are powered with the smartcomputational devices like microcontroller ormicroprocessors.Majority microcontrollers used in traditionalDAS systems supports communication protocols like RS232or serial communication, same communication interface canbe extended and used for interfacing different type ofMODEMs (MODulator DEModulator unit) like GSM modem,GPRS modem for M2M communication.Wired network is not always a good solution, sometimesdue to the cost of installing & maintaining wiring to a largenumber of devices or because the application is mobile. Alsoinstallation of a private radio network like RFID, Bluetooth,IrDA and Zigbee is not justified. So cellular provides a uniquecombination of geographic availability, the ability to use asmuch or as little capacity as needed, low capital costs to gainaccess to the network, and high reliability. [1]

International Journal of Applied Engineering Research, ISSN 0973-4562 Vol.7 No.11 (2012)© Research India Publications; http://www.ripublication.com/ijaer.htmCurrent cellular data connections are pure data pipeswithout any management capabilities. The transition fromCircuit Switched connections like calls to Packet Switchedlike GPRS emphasizes the need for connection management,since SMS communication may be initiated by either end ofthe connection, but the GPRS system mandates that theconnection is initiated by the end device in the network.[3]Even if GPRS provides higher data rate & “always-on”communication, but complexity involved in integratingTCP/IP stack for interfacing device with GPRS make itsecondary choice for M2M communication.In recent years, SMS has become an increasinglyimportant mechanism for M2M communication, with theubiquity of GSM and the relatively low cost of SMS beingcited as advantages. Concerns have been raised over thereliability of SMS as an M2M channel, however the rise ofdirect Signaling System 7 (SS7) connected SMS gateways,which can offer increased reliability and the ability to confirmdelivery, have allayed many of these fears. Initialization ofcommunication is comparatively easier in SMS than a call orDTMF as overhead like number busy, network busy shouldnot be consider by remote system.[2]5. PROCESS PARAMETERS ACQUISITION ANDCONTROLIn this system the Pressure, current water level coal level,temperature of water and Air Pressure is sensed by individualsensor and sensor parameters are amplified and digitized bysignal conditioner and ADC. Figure 2. Shows smart dataacquisition system with M2M communication.All the parameters are acquired by microcontroller atregular intervals .It will take the corrective action like pressurecontrol or flow control. If any hazardous situation occurs thecontroller will activate buzzer, send message of failure tooperator through SMS and shut off the entire system.Along with control the microcontroller will collect thisdata and it will stores the Data at own memory. Same will beaveraged over the duration of 5 minute to save controller’sinternal memory. Also these parameter’s values are send toremote operator through GSM module in the form SMS afterfixed no. of iterations of acquisition.On arrival of new message, micro controller will check theauthorization of sender. If the message is not from trustedsource, it will be discarded and no action will be taken, elsethe message content will be cross checked with standard inputvalues.If it is ‘S’ then the parameters are set as per the newparameters and ‘ok’ message is send back, otherwise ifmessage is ‘P’ then the current6. ObservationsAT commands are used to send request to GSM module and toreceive back response from module.FOLLOWING PARAMETERS ARE SEND TO REMOTEASSISTANT THROUGH GSM :Temp Set Val-150,Temp obs val-174,Upper level-1,Lower level-1,Heater status-0,I/P Solenoid- 0.O/P Solenoid-1AND TO CHANGE TEMPERATURE SET NEW VALUEFOLLOWING MESSAGE HAS TO SEND::SET 100THIS WILL SET NEW TEMPERATURE VALUE 100.Above results are observed while M2M communication isgoing on.7. RESULTS AND CONCLUSIONIn this paper, we have presented embedded intelligentDAS system for operator remote assistance where M2Mcommunication has been implemented. The system proposedalso support real time parameter transmission over longdistance, even at low cost. Also proposed system does notneed any modification in existing GSM network. The currentDAS uses Internate system for communication which getinfected using various attacks. Also such systems has to makechanges as per network, it requires separate network. Whileusing GSM above limitations get overcomed.8. REFERENCES1. “M2M Communication for Cellular Networks” byBy David Crowe2. “Wireless M2M system Architecture for DAS andControl” by Elmira Bachvarova .3. “Application of M2M wireless communication” bySallinen M.4. “M2M communication study report”, IEEE 802.16(ppc-10/0002r7),20105. Muhammas Mazidi, Janice Mazidi and RolinMcKinlay, “The 8051 Microcontroller and EmbeddedSystems using Assembly and C”, Pearson Education,2nd edition.6. Mazidi, Rolin McKinlay and Danny Causey, ‘PICMicrocontroller and Embedded Systems usingAssembly and C for PIC18’, Pearson Education