STRUCTURAL HEALTH MONITORING SYSTEMS

We are one of the best engineering company providing advanced solutions for structural health monitoring (SHM) and condition based maintenance (CBM) of high value assets, including bridges, large buildings, and heavy equipment, helicopters, pipelines, ships, and wind turbines. Incorporating advanced MEMS-based embedded sensor technologies, low-power wireless data acquisition nodes, and state of the art diagnostics and prognostics software, our application specific systems monitor and quantifies corrosion and stress related fatigue effects in order to predict the health status of the structure. Total cost of ownership for the asset is reduced while extending the life-cycle of critical structures through improved CBM schedules. Our systems are used for both experimental and operation modes of operation.

Software Suite for Structural Health Monitoring

SPAS (Structural parameter analysis software) are the end-user software tool to interface the SHM hardware modules developed by Senpronics, the software works in tandem with our sensors and hardware to detect and characterize structural anomalies in metals and composites due to the presence of cracks, corrosion, debonds, and delaminations. With the push of a button, our software instructs the hardware to interrogate the structure by collecting data. The software analyzes the data and presents the results in a clear, easy-to-understand display. The main functionality of SPAS is to:

  • Export data.
  • Download logged data
  • Initiate remote data logging
  • Perform real-time data acquisition
  • Perform data analysis (post processing)

    • SPAS works with the SHM system supporting the standard tiny OS. When installed on a host PC, SPAS can connect to an SHM system directly using a wireless network.

    Sensor Node

  • Processor/Radio Board: MICA modules to enable the low-power wireless sensor networks measurement system. Available in 868/916 MHz or 2.4 GHz.
  • Sensor Board: MTS400 multi sensor board including temperature, humidity, barometric pressure and ambient light sensing capabilities.
  • Processor/Radio Board: MICA module functioning as a base station when connected to the USB PC interface.
  • USB PC Interface Board: MIB520 Gateway provides a USB Interface for data communications. MoteView Client:

    • Monitoring Software for historical and real-time charting. Provides topology map, data export capability, mote programming and a command interface to sensor networks.


    OEM Design Kit for Wireless Sensor Network Devices

  • Support for 2.4 GHz, IEEE 802.15.4
  • Stamp-size Modules for Fast Integration of Wireless Processor/ Radios into Hardware Designs
  • Pre-programmed Sensor Interfaces and Boards for Immediate Sensor Data Acquisition Capabilities
  • Gateway for connecting Wireless Sensor Network with PC or Internet
  • Windows® Based User Interface for Visualization and Analysis of Network and Sensor Data

    • Sense Mote

    The Imote2 is an advanced wireless sensor node platform. It is built around the low power PXA271 XScale CPU and also integrates an 802.15.4 compliant radio. The design is modular and stackable with interface connectors for expansion boards on both the top and bottom sides. The top connectors provide a standard set of I/O signals for basic expansion boards. The bottom connectors provide additional high-speed interfaces for application specific I/O. A battery board supplying system power can be connected to either side.

    The Imote2 contains the Intel PXA271 CPU. This processor can operate in a low voltage (0.85V), low frequency (13MHz) mode, hence enabling very low power operation. The frequency can be scaled from 13MHz to 416MHz with Dynamic Voltage Scaling. The processor has a number of different low power modes such as sleep and deep sleep. The PXA271 is a multi-chip module that includes three chips in a single package, the CPU with 256kB SRAM, 32MB SDRAM and 32MB of FLASH memory. It integrates many I/O options making it extremely flexible in supporting different sensors, A/Ds, radios, etc.

    The processor also supports numerous timers as well as a real time clock. The PXA271 includes a wireless MMX coprocessor to accelerate multimedia operations. It adds 30 new media processor (DSP) instructions, support for alignment and video operations and compatibility with Intel MMX and SSE integer instructions. For more information on the PXA271, please refer to the Intel/Marvell datasheet. Radio & Antenna The Imote2 uses the CC2420 IEEE 802.15.4 radio transceiver from Texas Instruments. The CC2420 supports a 250kb/s data rate with 16 channels in the 2.4GHz band. The Imote2 platform integrates a 2.4GHz surface mount antenna which provides a nominal range of about 30 meters. For longer range a SMA connector can be soldered directly to the board to connect to an external antenna. The Imote2 can be powered by various means: Primary Battery: This is typically accomplished by attaching a Crossbow Imote2 Battery Board to either the basic or advanced connectors.

  • Intel PXA271 XScale® Processor at 13 – 416MHz
  • Intel Wireless MMX DSP Coprocessor
  • Integrated 802.15.4 Radio
  • Multi-color Status Indicator LED
  • Integrated 2.4GHz Antenna, Optional External SMA Connector
  • USB Client With On-board mini-B Connector and Host Adapters
  • Rich Set of Standard I/O: 3xUART, 2xSPI, I2 C, SDIO, GPIOs
  • Compact Size: 36mm x 48mm x 9mm Applications
  • Application Specific I/O: I2 S, AC97, Camera Chip Interface, JTAG


    • Applications

  • Condition Based Maintenance
  • Digital Image Processing
  • Industrial Monitoring and Analysis
  • Seismic and Vibration Monitoring


    • FBG Sensor based SHM

    The Fiber Bragg Grating (FBG) Sensor Interrogator is a compact, rugged, dynamic interrogator module designed for demanding aerospace applications. This a fully-integrated, high-resolution measurement system, features a high power, high speed swept wavelength laser, state-of-art embedded system for signal processing. The interrogator core employs advanced hardware peak detection, optimized for rapid data processing of many simultaneous FBG sensors. 
    It has four optical channels that are simultaneously sampled at 10 Hz for measurement of FBG strain and temperature sensors. Each optical channel has an 80 nm wavelength range (1510 to 1590 nm), which can typically scan up to several FBG sensors per channel (more than 2 FBG sensors per module, depending on sensor range and sensitivity). You can further extend the maximum number of FBG sensors per module by connecting one or more optical channels to an external optical multiplexer.

    Features

  • Multi-kHz Scanning
  • Extraordinary Zoom Resolution
  • Compact, low profile, lightweight chassis
  • Complete Single Board FBG Interrogator
  • Ruggedized power, data, and optical connectors
  • Ethernet output, allow cloud operation
  • Rugged Solid State Design with no moving Parts
  • Embedded system design for continuous, uninterrupted operation, no PC required

    • Specifications

  • 4 optical channels
  • Rugged carrying case
  • 10 Hz full spectrum range
  • 1510 to 1590 nm wavelength range
  • Ethernet and USB interface
  • Automatic sensor detection and configuration utility for fiber Bragg gratings

    • Applications

  • Aerospace vehicles (airframes, composite structures, wind tunnels, dynamic tests).
  • Space craft structure analysis.
  • Marine vessels (hull, mast, rudder, deck, cargo containers).
  • Transportation (railways, trains, roadways, specialty vehicles, cranes)
  • Homeland security (perimeter intrusion, heat detection, security gate monitoring)