SWAP and other things on a two icebreaker cruise USCGC ... · SIZE FSCM NO DWG NO REV--SCALE None...
Transcript of SWAP and other things on a two icebreaker cruise USCGC ... · SIZE FSCM NO DWG NO REV--SCALE None...
SWAP and other things
on a two icebreaker cruiseUSCGC Healy
CGC Louis S. St-Laurant
a very brief report of work done by Steve Roberts, Val Schmidt and Dale Chayes
Dale ChayesLamont Research Engineer
RVTEC October 30, 20081Thursday, October 30, 2008
Scope of this talk
• SWAP
• AIS
• Heading at high latitude
• Met sensors (‘cause we are at COAPS)
2Thursday, October 30, 2008
Ship to datacomDesign goal(s)
• Continuous connection between ship’s (science) working in close proximity
• ssh & http
• VOIP phones
3Thursday, October 30, 2008
Instrument LaboratoryLamont-Doherty Earth Observatory
of Columbia University61 Route 9W
Palisades, NY 10964
Drawn 2008-09-11Updated: 2008-09-25
Dale [email protected]
Healy - Louis S. St. LaurantSWAP Link
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LSSLdark fiber
Healy_guestSoekris Net4521
(Radio Room)
Healy_swapSoekris Net4521
10.10.0.1wlan0
10.10.0.2wlan0
N/C
10.1.0.1eth1
Healy ScienceNetwork
192.168.10.3eth0
802.11ESSID="swap2"
N/C
10.1.0.33eth1
DNS Primary: 192.168.10.8DNS Secondary: 192.168.10.15
10.1.1.1eth0
HyperGain® HG2415U-PROGain = 15 dBVertical Beam Width = 8º
Laird OD24Gain = 9dB
Veritical Beam Width= 14º
4Thursday, October 30, 2008
One-line diagram of the wireless connection in support of science for HLY0806
LSSL Radio Room
Instrument LaboratoryLamont-Doherty Earth Observatory
of Columbia University61 Route 9W
Palisades, NY 10964
Drawn 2008-09-11Updated: 2008-09-25
Dale [email protected]
HLY0806 Healy - Louis S. St. LaurantLSS Details
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Dark fiberthru
Forward Lab& Aft Lab
Healy_guestSoekris Net4521
(Radio Room)
10.10.0.2wlan0
10.1.1.1eth0
Linksys switch
Cat5FO
LSSL Boardroom
Linksys switch
Cat5FO
ScienceUser'sLaptop
VOIP Phones: Linksys/Cisco IP Pone SPA921
PC & printer/scanner provided by CGC
USB
5Thursday, October 30, 2008
One-line diagram of the wireless connection details on the LSSL.
Instrument LaboratoryLamont-Doherty Earth Observatory
of Columbia University61 Route 9W
Palisades, NY 10964
Drawn 2008-09-23Updated:
Dale [email protected]
HLY0806 SWAP Antenna Beam Patterns
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Laird OD24Gain = 9dB
Veritical Beam Width= 14º
jljljlj
OD24
global solutions :local supportTMANT-SPEC-OD24-0408
Any information furnished by Laird Technologies and its agents is believed to be accurate and reliable. Responsibility for the use and application of Laird Technologies materials rests with the end user since Laird Technologies and its agents cannot be aware of all potential uses. Laird Technologies makes no warranties as to the fitness, merchantability, or suitability of any Laird Technologies materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or consequential damages of any kind. All Laird Technologies products are sold pursuant to the Laird Technologies domestic terms and conditions of sale in effect from time to time, a copy of which will be furnished upon request.
Specifications subject to change without notice.
Specifications
Notes: • All shipments F.O.B. Schaumburg, IL 60173 • All antennas carry a 2 Year Warranty
Antenna Patterns
System Ordering: OD24- 9 2.4GHz 9dBi omni antenna
OD24-9D7 2.4GHz 9dBi omni antenna with 5 deg electrical downtilt
OD24-12 2.4GHz 12dBi omni antenna with 3 deg electrical downtilt
OD24-12P 2.4GHz 12dBi omni antenna with 5 deg electrical downtilt - N male pigtail
OD24-12PF 2.4GHz 12dBi omni antenna with 5 deg electrical downtilt - N female pigtail
Omni bracket close up
Parameter Min Typ Max Units
Frequency Range 2400 2485 MHz
Input Return Loss (S11) -14 dB
VSWR 1.5:1
Impedance 50 OHM
Input Power 100 W
Pole Diameter (OD) 1 (25) 2 (50) In (mm)
Operating Temperature -40 +70 Deg C
2400-2485MHz OD24-9 OD24-12
Gain 9dBi 12dBi
Vertical Beam Width 14deg 7 deg
Electrical Downtilt 0 deg or 7 deg 3 deg
Rated Wind Velocity 125mph (56 M/sec) 125mph (56 M/sec)
Weight 1.1 Lbs (0.5Kg) 1.4 Lbs (0.6Kg)
Dimension (L +/-1.0”) Diameter Approx. 0.6” (15mm)
27” (69cm) 48” (122cm)
9dB Vertical Antenna Pattern 0 Deg Elec Downtilt – E Plane
9dB Vertical Antenna Pattern 7 Deg Elec Downtilt – E Plane
12dB Vertical Antenna Pattern 3 Deg Elec Downtilt – E Plane
Wind Loading
100MPH 8.75 Lbs
125MPH 13.7 Lbs
HyperGain® HG2415U-PROGain = 15 dBVertical Beam Width = 8º
98 Feet29.9m
Healy
130 Feet29.6m
140 Feet42.7m
HyperGain® HG2415U-PROGain = 15 dBVertical Beam Width = 8º
Louis S St. Laurent
1 nm1852 m
4º (half of 3dB width)129m
Note:1) Drawing not to scale2) Worst case is a pair of HG2415Us with 8º vertical beam width. Even with moderate rolling, the other ship should always be in the beam pattern.
6Thursday, October 30, 2008
SWAP summary• Multiple confounding start-up issues:
connections, connectors, corrupt flash
• Range was less than expected (icing, ?)
• Link often did not “recover” itself
• Antenna field of view is (always) an issue?
• Keeping it running & helping users was labor intensive
• It was very effective for science
7Thursday, October 30, 2008
AIS • We needed real-time position of the other
ship (LSSL) in our real-time GIS
• Didn’t want to depend on the wireless link due to range
• High “overhead” to connect to Healy’s existing AIS system
• Purchased ($250 + shipping) AIS receiver & antenna (only)
• Used existing code (Kurt Schwer, UNH/CCOM) http://vislab-ccom.unh.edu/
8Thursday, October 30, 2008
HCO
Computer Lab
Instrument LaboratoryLamont-Doherty Earth Observatory
of Columbia University61 Route 9W
Palisades, NY 10964
Drawn 2008-09-27Updated:
Dale [email protected]
Automatic Identification System Receiver(Science)
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Smart Radio161AIS
Receiver
Bench Power SupplyHP -------
115 VAC
RS-232FO
RS-232FO
posmvnavdata logger
FORS-232C RS-232C
ACR AIS-A3200VHF Antenna
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10Thursday, October 30, 2008
Screen shots from the Healy real-time GIS showingAIS data (green) for LSSL and Healy real-time navigation.
Ship tracks for LSSL (green) and Healy (red) showing an event where Healy assisted in freeing LSSL from heavy ice.
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Healy has four sources of “high quality” heading at
high latitude • Applanix POS/MV-320
• Thales (Ashtech) ADU-5
• Sperry MK27
• Sperry MK39
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Met Sensorsvarious kinds of icing cause
data quality problems
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Met sensors, including heated ultrasonic anemometer, rain gauge, temperature, humidity sensors on the Healy’s foremast.
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Icing of various severity on mechanical anemometers on Healy.
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Icing of various met sensors on LSSL
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LSSL leading the Healy