MaxSea is compatible with several types of equipment. It allows the user to configure the Input/output data, to verify the data acquired and to modify the horizontal datum a reference system for surveying which involves using a plane, level, line, etc., from which to calculate heights and depths. A vertical datum is a level surface to which heights are referred. The horizontal datum is used as a reference for position. used by the GPS:
MaxSea expects standard positioning from a GPS.
- Norm : NMEA 183
- Sentences : GLL A data sentence The unit of information sent between peripherals and your Visual Series product. that is part of the NMEA National Maritime Electronics Association. The association sets standards for interfacing nautical electronic devices, including Global Positioning System receivers. protocol An agreed-upon format for transmitting data between two devices for transferring information between electronic devices. The GLL A data sentence that is part of the NMEA protocol for transferring information between electronic devices. The GLL sentence contains position information. sentence contains position information.(Position), VTG ( SOG Speed Over Ground is abbreviated as SOG. SOG is the actual fixed geographic speed of a vessel. It is essentially the Speed over Water (SOW), plus the cumulative effect of wind and current. / COG Course Over Ground - the direction, reported in true or magnetic north the area to which all compass needles point, located roughly 1300 miles south of true north. Magnetic north moves west slightly each year due to the earth's rotation and the friction created between the earth's liquid center and its solid crust. values, in which a GPS Global Positioning System - a global navigation system that is based on triangulation from a constellation of 24 satellites orbiting the earth. A GPS receiver pinpoints its position on earth by measuring its distance from the satellites. It does so by calculating the time it takes for a coded radio message to pass from the satellite to the GPS unit. A GPS unit needs at least three measurements to determine its exact position. receiver and the person operating it are moving with respect to the earth.magnetic north values, in which a GPS receiver and the person operating it are moving with respect to the earth.magnetic north values, in which a GPS receiver and the person operating it are moving with respect to the earth.magnetic north values, in which a GPS receiver and the person operating it are moving with respect to the earth.magnetic north values, in which a GPS receiver and the person operating it are moving with respect to the earth. )
- Baud Rae : 4800
This default configuration can be modified if necessary.
Select [Data
Input-Output Settings] from the
[Utilities] menu
On the [Data Input-Output Settings] tabs you will be able to :
From the BOAT or RADAR & AIS or TRAWL or DREDGE tabs :
show active COM ports used with devices connected on.
add either to remove easily an instrument, see Add or Remove Instrument chapters
For each one you can:
- define norm to be used
- define the speed of communication
- define among received data those that will be used in MaxSea (see Advanced settings... chapter.)
IMPORTANT - Every tabs such as "RADAR & AIS" or "TRAWL" or "DREDGE", are dynamic so their display will depend on the software configuration.
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From Preferences tab :
Define general preferences (Tolerance of position, geodetic datum correction... )
Backup or restore configuration
Configure network communication
Occasionally when several systems are connected together, trouble can appear during creating a quick route. This can come from if PC time is not synchronized with PC time. By default this synchronization is turned on (the "Synchronize PC time with GPS" box is checked).
From Check Data tab :
Verify the data sentences received by each port connected as well as the physical connection between the electronic equipment and the computer.
From Data Display tab : |
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发表于 2011-4-28 00:08:53
发表于 2011-4-28 01:56:04