SEAiq uses status bars for presenting sensor data and other information on the Navigate display.
There are two different status bars a vertical bar on the left or right side of the display and a horizontal bar on the top of the display.
These settings control which status bars are displayed. Note that you can also select these using the buttons on the top and left/right of the Navigate tab.
Edit Status Bar : When enabled, the panels in the vertical status bar can be graphicly reordered. After turning this on, go to the status bar, re-order the panels, then come back and turn this off. Note that only currently visible panels may be reordered.
This automatically disables itself whenever SEAiq restarts.
Apple Watch (Only SEAiq Pilot) : When enabled, data will be made available on Bluetooth for access by other devices. This is intended to be used for display on an Apple Watch by running the companion app, SEAiq Watch. SEAiq Watch provides a number of status displays, including ROT/HDG/COG/SOG, SOG-only, Vessel Motion, and Docking.
The normal operation is to run SEAiq Pilot (or SEAiq Pilot VPP) on your Apple iPad and SEAiq Watch on your iPhone. SEAiq Watch is required because your iPhone is paired with your watch and SEAiq Pilot is normally run on iPads.
Steps to use your Apple Watch with SEAiq Pilot:
We suggest making the following settings on your iPhone Watch App by choosing your watch and going to the General settings:
For further information, please see detailed help information in the SEAiq Watch app.
Show GPS Diagnostics : This controls display of GPS diagnostic information, such as the fix type (GPS, DGPS, etc), HDOP, HPE, number of satellites, etc.
If altitude is provided, then it is displayed as follows:
Precise Heading (Only SEAiq Pilot) : When enabled, heading is displayed with an extra degree of precision (359.9°). This should only be enabled if you know your heading sensor has the required level of precision.
When this and Settings / Alarms / Heading Tick are enabled, then the ticks are made on 1/2°.
Vessel Motion (Only SEAiq Pilot) : This controls whether to display a section in the status bar displaying vessel motion. It gives the bow and stern speeds to port/starboard and the vessel's speed ahead/astern. The estimated speed accounts for the position of the antenna, course and speed (COG/SOG), heading (HDG), and rotation of the vessel (ROT). All of these sensors must be available. The calculations assume vessel rotates about its center.
If all of the settings are not present but at least COG, SOG, and HDG are present then a simplified analysis is shown that only has 1 lateral speed in place of the bow and stern that corresponds to the lateral speed of the GPS antenna. In this case, GPS is shown for the lateral motion and NA for where the stern motion would have been shown.
Normally, a single digit of precision is displayed. If Precise Heading, Precise Course, and Precise Rate of Turn are enabled, then 2 digits of precision are shown.
Wind Direction : Choose format for presenting wind direction (true and apparent): relative to Own-Ship heading (+/- 180) or with absolute bearing (0-360).
Wind direction is normally reported as a direction relative to Own-Ship's heading. To convert to absolute bearing, heading data must be available. If not, then the wind is reported as relative values.
Squat (Estimated) (Only SEAiq Pilot) : Squat is a hydrodynamic effect that occurs as large vessels move through shallow water. Depending on various factors, the vessel may sit deeper in the water than its draft while stationary. This extra depth is called Squat.
Squat is complex. The values calculated for squat are only rough estimates for the actual squat. Many other factors not accounted for in the estimate may affect squat, such as movement of other vessels in a confined channel. This feature should only be used by Pilots familiar with squat, the formulas described below, and their correct use. If you are unsure, leave this feature disabled.
When this setting is enabled, a panel is shown with the estimated squat for both open water and confined channels. A confined channel is generally considered to be a channel less than 3 times as wide as the vessel's beam. The estimated squat value is only displayed in the status bar and is not otherwise used in SEAiq.
Estimating squat require that the Block Coefficient be set for Own-Ship (see Own-Ship settings).
In the formulas above, Squat is calculated in meters and V is the vessel speed in knots.
Pivot Point (Estimated) (Only SEAiq Pilot) : The pivot point is the point around which the vessel appears to be turning for an observer standing on board the vessel. The location of the pivot point is not constant and depends on external factors acting on the vessel such as use of tugs, bow thruster, vessel's rudder, vessel motion ahead or astern, wind forces, current, and water resistance. Having an estimate of the pivot point can provide insight into a vessel's motion.
When enabled, this feature presents a panel with the current position of the pivot point. Also, the pivot point will be displayed graphicly with when display scale is at least 1:20,000.
The estimated pivot point is calculated with the following formula: lateral_speed / ROT. lateral_speed is the component of the vessel's motion amidships transverse to the centerline (motion to port/starboard) in metre/second. ROT is the vessel's rotation in radians/second. The result is the position along the centerline forward/aft of amidships, in metres. This calculation assumes the center of gravity is amidships (50% of length of the vessel). Note that this assumption is not likely to hold if there is a large difference between the fore and aft draft.
The pivot point is presented relation to various positions on the vessel, depending on its location:
The estimated pivot point should only be used by pilots familiar with the concept of pivot point, the calculation above, the assumption regarding the center of gravity being amidships, and correct uses of pivot point. If you are unsure, leave this feature disabled.
The side status bar is more advanced. In addition to displaying basic sensor data, it includes a number of other context-sensitive display features. All the information is displayed in Panels which include related groups of information. As you will see some panels are only shown if enabled by the user, either explicitly though a setting or implicitly through some other action. For instance, when an AIS target is selected, a panel will be shown containing information about that target.
If there is sensor data that is not displayed in one of the panels listed above, additional panels will be added with simple formatting for those sensors.