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  1. 1. Sarvesh B.Rothe, Prof. V.G.Girhepunje / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 Vol. 2, Issue 5, September- October 2012, pp.1894-1899 Design and Implementation of Real Time Wireless Biomedical System Based on ZigBee-GSM interactive module: Sarvesh B.Rothe, Prof. V.G.Girhepunje An Autonomous Healthcare M.Tech(communication) PCE, Nagpur Electronics & Telecomm. PCE, NagpurAbstract We present a framework for a wireless communication system for real-time healthhealth monitoring system using ZigBee monitoring with secure transmission capability. Onetechnology. It has the capability to monitor vital of the most promising applications of sensorsignals from multiple biosensors. Biomedical networks is for human health monitoring. A numbersignals are collected and processed using 2-tiered of tiny wireless sensors, strategically placed on thesubsystems. The first stage is the mobile device human body, create a wireless body area networkcarried on the body that runs a number of that can monitor various vital signs, providing real-biosensors (internal subsystem). At the second time feedback to the user and medical personnel.stage, further processing is performed by a local The wireless body area networks promise tobase station (external subsystem) using the raw revolutionize health monitoring. However, designersdata transmitted on-request by the mobile device. of such systems face a number of challenging tasks,The raw data is also stored at this base station. as they need to address often quite conflictingThe processed data as well as the analysis results requirements for size, operating time, precision andare then monitored and diagnosed through a reliability.human-machine interface. The main advantages Lately traditional system to collectof the proposed framework are (1) the ability to parameters for daily homecare is widely used indetect signals wirelessly within a body sensor biomedicine. The traditional system adopts wirednetwork, (2) low-power and reliable data way wiring which makes the system complex, bulkytransmission through ZigBee network nodes, (3) and expensive, fig.1. Adopting wireless way wiringsecure transmission of medical data over a body is convenient and economical. Wireless biomedicalsensor network, (4) efficient channel allocation sensors are a group of embedded smart sensors thatfor medical data transmission over wireless form a network from wireless communication linksnetworks, and (5) optimized analysis of data [3] and operate within the human body tousing an adaptive hardware architecture that compensate for various diseases.maximizes the utility of processing andcomputational capacity at each platform.Keywords- Vital signals; ZigBee; Autonomoushealthcare; Adaptive architecture; Reliable andsecure data-transmission.I. INTRODUCTION As numerous wireless personal area Fig: Biomedical sensorsnetworking (WPAN) technologies emerge, the With such a smart system including multiple sensorsinterest for applications such as health monitoring, of different types, we envision a future wheresmart homes, and industrial control has grown biosensors can form a wireless sensor network, assignificantly. ZigBee is the first industrial standard dot matrix sensors, comprising a large number ofWPAN technology [1] that provides short-range, nodes whose placement in the body can be eitherlow-power, and secured communication, and pre-determined or random according to thesupports mesh networking and multi-hopping. It is a wireless network protocol stack of IEEE802.15.4 for use in industrial equipment and home II. SYSTEM ANALYSISappliances in order to take in multi-type, multi-point Our novel model of wireless biomedicalsensor information [2]. While many smart home system is designed with the following technicalapplication areas such as lighting, security, and features:climate control have been suggested using the • Large versatility (Micro-controller embeddedZigBee standard, health-care applications have not system).received much attention despite their importance • Efficient power management (power savingand high-value added. Here, we present a wireless technique). • Pulsed measurement mode concept. 1894 | P a g e
  2. 2. Sarvesh B.Rothe, Prof. V.G.Girhepunje / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 Vol. 2, Issue 5, September- October 2012, pp.1894-1899• Embedded interface with a dot matrix sensors frequency band. X Bee RF Module complies with(front-end). Part 15 of the FCC rules and regulations [12]. It• On request addressable sensor node (polling supports the unique needs of low-cost, low powermode). wireless sensor networks. The module requires• Selectable data refreshment time. minimal power and provides reliable delivery of• In-situ wireless data programming and upgrading data between devices. It is a short range technology(boot loader technique). that allows secure and robust communications. The• Bidirectional data link (half duplex with reverse use of radio device, capable to transfer data over atelemetry). range of up to 100 meters outdoor-line of sight andA detailed description of the whole system will be up to 30 meters indoor-urban, is well recommended.discussed in the following sections. As user interface, a windows API (Application Programming Interface) application is to beA. Selected Technology developed with high level design software for We have chosen a Zig Bee RF Module to graphical user interface IEEE 802.15.4 standards and the ISM 2.4 GHzFig: Block diagram of transmitter and receiver using ZigBee module with RF linkAlso GSM control subsystem enables the user to GSM-RF hardware tests are run in order to checkmonitor patient remotely whereas the security alert the hardware support. The system will call GSMsubsystem provides the remote security monitoring. modem and it will get activated.The system is capable enough to instruct user via · After activation the Modem will check forSMS from a specific cell number to change the hardware support. If the hardware is missing orcondition of the home appliance according to the some other hardware problem there will be error,user’s needs and requirements. The second aspect resulting in communication failure and theis that of security alert which is achieved in a way application will be terminated.that on the detection of intrusion the system allows · If hardware responds then the serial port will beautomatic generation of SMS thus alerting the user opened for communication and GSM hardware willagainst security risk. The working of GSM in allow transmission of SMS.Interactive model can be explained as:- 1895 | P a g e
  3. 3. Sarvesh B.Rothe, Prof. V.G.Girhepunje / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 Vol. 2, Issue 5, September- October 2012, pp.1894-1899· The system will then connect and after connection · SMS will be silently ignored if cell number isestablishment the system will be able to detect unauthorized.intrusion and will alert user about the breach and If it is authorized then necessary action can be toldsimilarly the system will update status of to concern authoritiesappliances by receiving SMS from the pre-definedcell number..Fig: Wireless transmission and reception of sensor data 1896 | P a g e
  4. 4. Sarvesh B.Rothe, Prof. V.G.Girhepunje / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 Vol. 2, Issue 5, September- October 2012, pp.1894-1899 1897 | P a g e
  5. 5. Fig.3: Zig Bee – GSM interaction process instructions. Hence, the accuracy, the sensitivity,B. Development environment the acquisition rate and the data processing can be The conception, design and changed during operation, which are necessary toimplementation of the entire acquiring prototype adapt the system to the environment changes and towere carried out using PROTON® Basic Compiler compensate for drift phenomena.Development Suite (Crown hill Associates),PROTEUS® Professional (Multi-power IV. CONCLUSIONSTechnology), and EAGLE® Layout Editor(Cad In This research we have focused toSoft Computer). The software developments for develop an optimized microcontroller-basedmicrocontroller can be done in suitable IDE for architecture for REAL TIME multi-purposeselected microcontrollers. wireless biomedical system based on ZigBee & The suggested architecture has the GSM wireless data transceiver. It has the capabilityminimum requisites of an autonomous system: a to monitor biomedical signals from multipledot matrix multi-sensors array, an intelligent power biosensors by means of different communicationsaving and supervision, an embedded standards. Its capability has been tested throughmicrocontroller and a serial communications block standard sensors such as pressure, temperature andfor the two way transmission of data (half-duplex) oxygen sensors with enhanced user graphicalthrough a ZigBee RF transceiver module& via interface to visualize and monitor the progress ofGSM. The latter allows the MCU to receive multi-sensors curves concurrency in real-time. Ininstructions, memory program upgrade and gather addition, we have developed a ZigBee-readyinformation from requested sensors (polling mode). compliant wireless system that offer low powerMicrocontroller cab be selected which has an on- consumption, low cost and advanced networkchip FLASH Program Memory with In-System configuration possibilities. Its reliability has beenProgramming (ISP) which makes it flexible and measured and proved through experimental resultseasy to upgrade. It is an 8-bit RISC (Reduced related to the bit error rate measurement. Hence, anInstruction Set Computer) circuit with 8 A/D affordable transmitting power level has beenconverters, 3 timers, serial UART (Universal chosen in order to reduce the power consumptionAsynchronous Receiver Transmitter) and an and save the energy. This work can further showsenhanced USB interface working with a clock the success of our proof-of-concept study for real-frequency up to 20 MHz Its internally implemented time efficient biomedical evaluation prototype. ForRISC architecture gives an instruction runtime of this purpose, and in addition to the use of higherbetween 80 and 200 ns depending on the chosen transmission frequency for the real implantableoscillator. The dot matrix sensors array contains system, our future work can be concentrated on aseveral sensors, which can sense one or more comparative study between UHF, ZigBee and Wi-physical quantities. The addressable sensor Fi wireless data link system to evaluate the mostinterface chip provides the address, the adequate wireless link to be compliant with such aamplification and analog-to-digital conversion of biomedical care systems.the sensed signal. It contains an analog multiplexer,a programmable analog front-end and a ten bits REFERENCESanalog to digital converter, makes the sensor [1] ZigBee Alliance (2007). ZigBee Homeinterface chip a versatile component, which can be Automation Public Application Profile.programmed at any time. It offers also, options for Retrieved fromintelligent power management. Indeed, all channels are not in use can be switched off Documentsindividually. Thus, the microcontroller has several Download/tabid/237/Default.aspximportant tasks: [2] Yu, Y., Prasanna, V.K., Krishnamachari,(1) It controls the sensor interface chip and B. (2006).Information Processing andprovides its settings, such as the configuration of Routing in Wireless Sensor Networks.the readout electronics like sensor address and World Scientific Publishing Co.analog front-end configuration as well as sensor- [3] ZigBee Alliance (2007). The Choice forspecific software routines. Energy Management and Efficiency.(2) It gathers the data coming from the sensor ZigBee White Paper. Retrieved frominterface chip and stores it in a memory. It implements some smart compression Technical Documents Download/algorithms (base-band coder/decoder) to reduce the tabid/237 /Default .aspxenergy consumption during data transmission. [4] Tavares, J., Velez, F.J., Ferro, J.M.The bi-directional communication link sends the (2008). Application of wireless sensorsensors data to the transceiver and provides the networks to automobiles. Measurementmicrocontroller with new programming Science Review, 8, 65-70. 1898 | P a g e
  6. 6. [5] Wittenburg, G., Terflosth, K., Villafuerte, F.L., Naumowicz, T., Ritter, H., Schiller, J. (2007). Fence monitoring – experimental evaluation of a use case for wireless sensor networks. In Wireless Sensor Network. Lecture Notes in Computer Science. Berlin: Springer, 163- 178.[6] ZigBee Alliance (2006). ZigBee Specification. Retrieved from Technical Documents Download/t abid/237/ Default.aspx[7] Arbab Waheed Ahmad, Naeem Jan, Saeed Iqbal, Chankil Lee,” Implementation of ZigBee-GSM based Home Security Monitoring and Remote Control system”, 978-1-61284-857-0/11/©2011 IEEE[8] Wael M EI-Medany, Mahmoud R EI- Sabry. "GSM-Based Remote Sensing and Control System using FPGA" Proceedings of the International Conference on Computer and Communication Engineering 2008(ICCCE08).[9] Kwang Koog Lee, Seong Hoon Kim, Yong Soon Choi and Hong Seong Park. "A Mesh Routing Protocol using Cluster Label in the ZigBee Network"IEEE International Conference on Mobile Adhoc and sensor Systems, pp 801-806, 2006. [10] Patrick Kenney, “ ZigBee Technology : Wireless Control That Simply Works”, IEEE Communication Design Conference October 2002.[11] Microchip.PIC18F2420/2520/4420/4520 Datasheet.2008[12] IEEE Computer Society (2003). IEEE802.15.4 Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (LR-WPANs). IEEE specification. 1899 | P a g e