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Timeshare Group Settings
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Group Type: The type of camera group; in this case Timeshare camera group.
User ID: A user friendly ID.
Name: The name allocated to the camera group.
Enabled: The option to enable this group, which is selected by default.
Use Priority: This controls which targets are selected to be followed, and is explained further in the Priority section: https://navtechradar.atlassian.net/wiki/spaces/TUN/pages/501579784/Timeshare#Priority.
Target Expiry Time: This specifies how long a target will be kept alive whilst the system waits for an update.
Min Follow Time: The minimum length of time spent following targets before looking for another suitable target to follow.
Max Follow Time: The maximum length of time spent following targets before looking for another suitable target to follow.
Classification: Select what type of targets should be followed. By default this is set to all classification models.
Priority: Select the priority level to restrict all cameras in the Timeshare Group to only follow targets of the selected priority or higher. Any targets of a lower priority will be ignored. By default this is set to High.
Camera Coast: Select this option if you want the camera to continue to follow in the target’s last known direction when it is no longer being tracked.
Coasts Allowed: How many times the camera should follow a coasted track before giving up.
Minimum Sightings: The minimum number of sightings a target should have before it is followed by a camera.
| Info |
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Priority is set as part of the alarm configuration. Please refer to https://navtechradar.atlassian.net/wiki/spaces/TUN/pages/307232849/General#Alarm-Settings for ClearWay™ and Rules for AdvanceGuard® alarm configuration. |
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Default
Single Camera:
Each track is viewed for the Follow Time, before the camera switches to the next Track. e.g. 10 seconds.
The tracks are viewed in order of their age: from oldest to youngest, and then cyclically. Age is defined by how long the tracks have been inside the Detection Area.
As tracks move in and out of the Detection Area, the age and therefore the order of track viewings will change.
The camera's views are labelled numerically in order of viewing.
If a track leaves the Detection Area, and then rejoins the Detection Area, its age will be refreshed.
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Each track is viewed for the Follow Time, before the camera switches to the next track. e.g. 10 seconds.
When a Detection Area is given Priority, only tracks within the Priority Area (red) will be viewed.
The tracks are viewed in order of their age: from oldest to youngest, and then cyclically. Age is defined by how long the tracks have been inside the Priority Detection Area.
The cameras' views are labelled numerically in order of track viewing.
As both cameras are in the same group, they will not view the same track simultaneously. Instead, each camera will view in order of age and track availability.
In this example, there are three tracks to be tracked by two cameras, so the tracks cannot be evenly distributed between the two cameras. Therefore:
Camera 1 tracks the oldest track (green), so Camera 2 views the second oldest (blue).
When the Follow Time ends, Camera 1 will switch to viewing the second oldest track (blue), so Camera 2 will switch to the third oldest (indigo).
When the Follow Time ends, Camera 1 will switch to viewing the third oldest track (indigo), so Camera 2 will switch back to the oldest (green).
This 'every two tracks' cycle will continue unless a track or tracks move in or out of the Detection Area.
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