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Agenda
- Goals of Wireless Monitoring
- Radio Technology
- Case Study - Field Deployment
Triplex Chapter of Vibration Institute Wireless Monitoring of - - PowerPoint PPT Presentation
Triplex Chapter of Vibration Institute Wireless Monitoring of - - PowerPoint PPT Presentation
Triplex Chapter of Vibration Institute Wireless Monitoring of Critical Assets Jim Girardeau Uptime Solutions jgirardeau@uptime-solutions.us www.uptime-solutions.us January 14, 2014 1 Uptime Solutions 2013 Agenda Goals of Wireless
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Part 1: Goals of Wireless Monitoring
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Wireless Monitoring
- Supplements route based analysis for
critical machines.
- Critical areas or problem areas
analyzed continuously.
- Analysts spend more time analyzing
data, and less walking routes.
- Higher Reliability with more accurate
data.
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Wireless Monitoring Goals
- High capability
Full spectrum analysis Real time signals, dwell on asset Automated fault detection
- Historian and trending; access
“anywhere”
- Easy to install and flexible to expand
- Reliable and cost effective
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- How does it work?
- Monitoring Sensors- Sensors are connected to the wireless transmitter unit via
BNC/Pin Point connectors
- Radio- Data is sent via radio from the wireless node unit to the Base Station
(transceiver)
- Mesh Network-allows the nodes to talk to one another
- Software- Displays Spectrums, Waveforms, Trend Data, Temperature Display and
stores data
- Power- 24 v DC / Battery
Home Office
Base Station
Main Office
Computer Pod Node
Reliability Office
Bearings Motors Pumps
Wireless Network
Process Office
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Part 2: Radio Technology
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Wireless Soup
WLAN A,B,G,N 400/800/900M Hz ISM 2.4GHz Standards ISA Wireless HART GPRS
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Radio Fundamentals
- Range
Power Frequency Antenna gain
- Capability/bandwidth
- MAC Protocol, TDMA, Mesh, Star
- Deployment
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Power Output
Coverage Area vs. Power
TX 0dBM TX 24dBm
64 times larger coverage
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Propagation Lost vs. Wavelength
0.00E+00 1.00E+00 2.00E+00 3.00E+00 4.00E+00 5.00E+00 6.00E+00 7.00E+00 8.00E+00 5Ghz 24.Ghz 900MHz
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Antenna Gain
Ideal Antenna
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Typical Bit Rates
0.00E+00 1.00E+08 2.00E+08 3.00E+08 4.00E+08 5.00E+08 6.00E+08 7.00E+08 WLAN 802.11N WLAN 802.11AG WLAN 802.11B 900MHz Wireless Hart
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Deployment Considerations
- Deployment on WLAN is a well know process,
and involves site maps and placement of base stations.
- Deployment of 900MHz is similar, but requires
less infrastructure.
- Deployment of Mesh type systems, seems
easy due to their self adjusting properties and redundancy, but has difficulties in practice.
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Example Deployment of Wireless Hart
- Wireless Hart foundation “fundamental rules” ---
The Rule of 5 – “Every Wireless Hart network
should have a minimum of 5 Wireless Hart devices”
The Rule of 3 -- “Every Wireless Hart network
should have a minimum of 3 neighbors”
The Rule of Percentage – “Every Wireless Hart
network with greater than 5 devices should have 25% within range of the gateway”
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Putting It All Together
WLAN Low ISM WHart type Power Med High Low (mesh) Range Med High Low (mesh) Bit Rates High Low Low Deployment Ease Well known Long Range Radio Restrictions Support of Full Spectral resolution Good Good Low Real time Streaming Good Low Not possible Dwell on Single Node Good Good Not Possible Standard Worldwide Country by country Yes, some uncertainty Strong Point Flexible, well supported, high data capacity Long range, full spectral analysis Dense networks; deterministic sampling
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Part 3: Field Study
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Site Overview - Flyover
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Site Overview - Schematic
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Single Machine
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Lots of Metal in the Way…
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Wireless Performance
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Time Domain Wave Forms
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Frequency Domain
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Gauges – Trend Values
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Results
- Multiple points were monitored reliably over a
period of years.
- The system was expanded after the trial to
cover a large area of the mill.
- Multiple defects were identified.
- Key problem areas were put on 24/7 watch
with email/text alerts
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Q&A
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