IJSRD - International Journal for Scientific Research & Development| Vol. 3, Issue 04, 2015 | ISSN (online): 2321-0613 All rights reserved by www.ijsrd.com 1652 Bluetooth and Zigbee Based Wireless Data Acquisition System for Vibration Monitoring using LabVIEW Manish Y. Upadhye 1 P. B. Borole 2 Ashok K. Sharma 3 1 PG Student 2 Associate Professor 3 Scientific Officer 1,2 Department of Electrical Engineering 3 Control Instrumentation Division 1,2 Veermata Jijabai Technological Institute, Mumbai 400019, India 3 B.A.R.C. Mumbai 400094, India Abstract— Condition monitoring of machinery involves vibration analysis of the machine part. Vibration measurement is prerequisite for condition monitoring and vibration analysis. This paper presents development of a reliable and low cost wireless 4-channels wireless data acquisition system for vibration monitoring. In the developed monitoring system, 3 Axis digital output MEMS Accelerometer sensor has been used as vibration sensor. For data processing Arduino Uno microcontroller board has been used. The implemented system uses Bluetooth and ZigBee communication protocols for wireless transmission of the data form Sensor Unit to Vibration Monitoring Unit. National Instruments‟s VISA drivers have been installed in the computer to add serial instruments in LabVIEW. Graphical user interface and alarm generation have been done using National Instrument‟s LabVIEW software on the PC. Software development has been done for continuous display of vibrations on four continuous charts. Also alarm generation and data logging features have been added. This system has industrial applications such as vibration analysis, safety control and condition monitoring. Key words: Vibration Measurement, MEMS Accelerometer, Bluetooth, ZigBee, Arduino, LabVIEW I. INTRODUCTION Vibrations are inseparable part of almost every type of active machinery such as motors, compressors, pumps, gearboxes, mixers etc. Excessive vibrations in machinery occur mainly due to mechanical faults. These faults can be machine unbalances, misalignment of gears and bearings, bent in shafts, loose- bolts. Vibration Analysis provides relevant information about abnormal working condition. Abnormal working conditions lead to a failure that brings the plant to stop. Machine‟s vibration analysis is mainly used for condition monitoring and predictive maintenance, in industries. The root-causes of failure can be found out using vibration analysis. Vibration measurement is prerequisite for vibration analysis which is used for condition monitoring of machinery. The proposed system is continuous wireless vibration monitoring system. The Vibration Analysis is used to identify component faults. So, maintenance action can be taken before a failure occurs. One can avoid costly catastrophic failures in plants using this analysis. The proposed system consists of 3-Axis digital output MEMS Accelerometer sensor which is MMA7455L. It can sense acceleration up to ±8g (where 1g = 9.81m/s2). It is having Inter-Integrated Circuit (I2C) digital interface and serial peripheral interface (SPI). This vibration sensor is interfaced with Arduino Uno microcontroller board which is having Atmel‟s Atmega328p microcontroller. When measuring objects which are bigger in size then wiring of long cables increases installation cost and leaves wires vulnerable to ambient signal noise corruption. Thus wireless data transmission is highly beneficial. The implemented system uses Bluetooth (standard IEEE 802.15.1) and ZigBee (standard IEEE 802.15.4) communication protocols for transmitting data form Sensor Units to Vibration Monitoring Unit which are implemented using HC-05 module and Xbee module respectively. The system acquires sensor data wirelessly using RF Transceivers (Bluetooth and ZigBee RF Modules) at PC. Graphical User Interface, Data Logging and Alarm System have been developed using National Instruments‟s LabVIEW software. This paper describes development of low cost, continuous vibration monitoring system. This system can be used in predictive maintenance by doing vibration analysis of machine part. System continuously monitors machine condition, automatically evaluates data and gives alerts when damage begins to occur, depending on set threshold. This system has industrial applications such as vibration analysis, safety control and condition monitoring. This paper is organized as follows; Section II shows brief review of the existing vibration monitoring systems. Section III describes the implemented system. Section IV deals with the hardware implementation and flow chart of working. The experimental results are presented in Section IV. The Section V concludes this paper. II. RELATED WORK After reviewing many articles in this area, few papers show use of capacitive type MEMS Accelerometer as a reliable vibration sensor[1],[2],[3]. Papers[4], [5] shows use of Arduino microcontroller board in low cost system development. Some studies show development of wired vibration monitoring system [2],[3]. But wired technology is lagging behind wireless communication technology in many aspects. Wireless vibration monitoring has many advantages over wired monitoring, as we can reduce installation cost by avoiding long cables from sensor to analyzer. Also use of wireless technology provides mobility, easy reconfiguration. Few papers show development of wireless vibration monitoring systems using ZigBee communication protocol [6],[7]. The author of [8] shows comparison of wireless personal area network technologies which emphasizes advantages of ZigBee protocol over Bluetooth protocol in terms of range of communication, power consumption. If we compare ZigBee with WiFi & Bluetooth communication, then ZigBee requires less power. For effective ZigBee communication, the distance between sensor nodes and monitoring system should be within 30 meters. The proposed system is implemented to monitor sensor nodes which are at maximum of 20 meters distance