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


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

SIZE FSCM NO DWG NO REV

--

SCALE None SHEET 1OF 2

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


One-line diagram of the wireless connection in support of science for HLY0806

LSSL Radio Room



Palisades, NY 10964

Drawn 2008-09-11Updated: 2008-09-25


HLY0806 Healy - Louis S. St. LaurantLSS Details


--


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


One-line diagram of the wireless connection details on the LSSL.



Palisades, NY 10964

Drawn 2008-09-23Updated:


HLY0806 SWAP Antenna Beam Patterns


--


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



Wind Loading

100MPH 8.75 Lbs

125MPH 13.7 Lbs


98 Feet29.9m

Healy

130 Feet29.6m

140 Feet42.7m


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.


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


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/


http://vislab-ccom.unh.edu/~schwehr/

http://vislab-ccom.unh.edu/~schwehr/

HCO

Computer Lab



Palisades, NY 10964

Drawn 2008-09-27Updated:


Automatic Identification System Receiver(Science)


--


Smart Radio161AIS

Receiver

Bench Power SupplyHP -------

115 VAC

RS-232FO

RS-232FO

posmvnavdata logger

FORS-232C RS-232C

ACR AIS-A3200VHF Antenna



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.


Healy has four sources of “high quality” heading at

high latitude • Applanix POS/MV-320

• Thales (Ashtech) ADU-5

• Sperry MK27

• Sperry MK39


Met Sensorsvarious kinds of icing cause

data quality problems



Met sensors, including heated ultrasonic anemometer, rain gauge, temperature, humidity sensors on the Healy’s foremast.


Icing of various severity on mechanical anemometers on Healy.


Icing of various met sensors on LSSL


LSSL leading the Healy

swap and other things on a two icebreaker cruise uscgc ... · size fscm no dwg no rev--scale none...

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