1 / 11

NEWTON - Novel Sensing Network for Intelligent Monitoring 09/07/2013

NEWTON - Novel Sensing Network for Intelligent Monitoring 09/07/2013. Dr. Dave Graham Mr. Jeff Neasham Dr. Zhiguo Ding Prof. Gui Yun Tian. NEWTON Objectives.

ekram
Download Presentation

NEWTON - Novel Sensing Network for Intelligent Monitoring 09/07/2013

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. NEWTON - Novel Sensing Network for Intelligent Monitoring 09/07/2013 Dr. Dave Graham Mr. Jeff Neasham Dr. Zhiguo Ding Prof. Gui Yun Tian

  2. NEWTON Objectives 4 year project - Bridging the gap between NDE and SHM, using a novel combination of passive wireless technology with PEC and acoustic wave sensing (Newcastle University). Applying non-linear system identification and model-based signal processing to assess the location, size, and microstructure of defects in structures (University of Sheffield). Building cloud-based diagnostic software architectures, and data management for the software implementation of developed technologies (University of York).

  3. System Overview

  4. Sensor Features

  5. Application Example Data Management (York) S1 S2 Power Data • Valuable infrastructure. • Sensors at critical locations. • Completely passive sensors. • Very large read range! • Efficient, cost effective measurements. Feature Extraction (Sheffield) 10m+ range Wifi, GPRS, SD card Reader

  6. Reader (Front End) Packet Structure Digital Interface (SPI) Error Checking Processing / Demodulation ID (4Bytes) Data (<20Bytes) Power Supply RF Signal Source Reader Antenna High frequency (868MHz) Power and Communications MUT Tag Low Power Microcontroller Comms / Power Antenna Waveform Generation Modulation Drive Circuit Sensing Temperature Sensor ADC Power Harvesting Proposed Design • FeatureExtraction (Sheffield) Data Management (York) Data Management ? Reader 10m+ Tag MUT

  7. Sensing Modes

  8. Sensing Challenges • Scope / Sensitivity Trade-off • Resolution • Ultra-low Power Operation • Minimise Complexity / Cost • Size / Profile • ADC Specification • Installation

  9. Design Flow

  10. What is Achievable? • Power Budget < 20uJ per measurement • Read range <25m • Temperature sensing for drift compensation • 32-bit ID for position information • 16 bit CRC for error checking • Transmission @ 38.4k baud • 2MHz sampling with today’s hardware • Both EM and acoustic techniques are viable within these constraints

  11. Conclusion • NEWTON Project • Proposed sensors have a lot to offer SHM in industry. • Potential for long range, wireless measurement • Completely passive, very long lifetime • Combine acoustic measurements and EM measurements for better structure coverage • Challenge is achieving high sensitivity, high resolution within the power, size and cost constraints

More Related