Introduction
This section covers ATI, Lost and Track Queries on the Playback Tab.
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This query filters tracks through every possible variation, in order to select and display a specific quota of tracks (within the time period and record limitations). The track pathways appear as a white line on the PPI, but multiple tracks can be multi-coloured to differentiate them.
The variables are decided by the following categories:
Id: A unique identifier for each track.
Min. Sightings: The minimum number of sightings a track requires before it is recorded as a track. Toggle the 🛇, ≤ and ≥ buttons to define the value.
Min. Speed: The minimum speed value, either a maximum, minimum or equal to value. Toggle the 🛇, ≤, ≥, =, ≠, ⪥, and <> buttons to define the value.
Max. Speed: The maximum speed value, either a maximum, minimum or equal to value. Toggle the 🛇, ≤, ≥, =, ≠, ⪥, and <> buttons to define the value.
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Classification Filter: Enables you to filter by one or more track classification types. Just click the required types to highlight them or deselect all to remove the filter. Classification options are:
a. Person
b. Vehicle
c. Large Vehicle
d. Debris
e. Animal
f. Drone
g. Aeroplane
h. Boat
i.Unclassified
Travelled (m): How far the tracks have travelled. Toggle the 🛇, ≤ and ≥ buttons to define the value.
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Area Covered (m): How far the track has travelled, either horizontally or vertically along the x/y-axis. Toggle the 🛇, ≤ and ≥ buttons to define the value. Whether the value is measured on the x or y-axis depends on which is the larger 'distance'. In the examples below, the Area Covered is defined first by the distance travelled along the x-axis, and second by the distance travelled up the y-axis.
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For distance Travelled, it is a minimum value. The results will return tracks any value larger, any values further from zero, whether negative or positive. e.g. Travelled (m): 6 would return 7, 8, 9... and - 6 would return - 7, - 8, - 9... |
Lost: Select to include Lost tracks in the query.
Tag Preset: A text search for Tag Presets.
Tag Presets: This will show a drop-down list with Tag Presets which have been configured in System Settings.
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Areas: Select a detection area.
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Radars: Select a specific radar.
Analysis Status:
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Select a specific analysis status or all:
Any
b. System
c. False Alarm
d. Confirmed Alarm
e. Archive
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Results: How many results the query has returned.:
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Results
The results of a Track Query are displayed as a list in the Results Panel:
Selection:Select: Select the tracks you wish to focus on.
Classification: The type of track.
ID: Unique alphanumeric identification assigned to each track.
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Tag Preset: If a tag has been associated with the live track then it will be listed.
Classification: The type of track.
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Show: Select the main column option for all of the tracks to appear on the PPI Display. Alternatively, select the Show option next to each track you wish to view. They will appear on the PPI Display, like this example below:
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History: Select this icon to open the Track Details window
Status: Change the status to draw specific attention to the track, and save from default track data culling. The Track Details panel has three tabs: Sightings, Statistics and Classification:
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The Classification tab will not be available if the ML Classification feature is enabled in the Track Engine configuration. |
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On the top left of the Track Query Panel there are the following icons to be used with selected tracks:
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Create Exclusion: Creates an Exclusion Area around the selected track's area covered. Unlike a normal Exclusion Area, tracks can recorded and followed through the Track Query Exclusion Area, but all alarms within the Area are suppressed. Therefore the Area is an exclusion zone for alarms. See Exclusion Areas for further details.
Export: Export the track records for posterity.
Analyse: An option to analyse the selected tracks. If selected then the Tracks Analysis Panel will be displayed.
Status: Change the status to draw specific attention to the track(s), and save from default track data culling. This will open the Set System Status Panel.
Tracks Analysis Panel
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This shows an analysis of all of the selected tracks:
Min/Max Date: The earliest and latest dates for the selected tracks.
Min/Max Range: The minimum, maximum and average distance of sighting from the radar for the selected tracks.
Sightings: The minimum, maximum and average number of sightings of the selected tracks.
Speed: The minimum, maximum and average speed of the selected tracks.
Strength: The minimum, maximum and average radar signal strength for the selected tracks.
Weight: The minimum, maximum and average weight for the selected tracks.
Size: The minimum, maximum and average size for the selected tracks.
Area Covered: The minimum, maximum and average value of how far the selected tracks have travelled, either horizontally or vertically along the x/y-axis.
Travelled: The minimum, maximum and average value of how far the tracks have travelled.
Coasts: The minimum, maximum and average number of coasts (assumed sightings) for the selected tracks.
Set Analysis Status Panel
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This allows the operator to apply an Analysis Status to all of the selected tracks:
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Analysis Status:
System
False Alarm
Confirmed Alarm
Archive
Track Details Panel
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Id: Unique alphanumeric identification assigned to each track.
First/Last Sighting: Date and time of when the track record begins and ends.
Duration: Track length in time to the nearest second.
Seen (Recorded): Number of sightings of the track. Given the radar rotates four times a second, the number of sightings should be roughly equivalent to x4 the track duration (if the track does not coast.)
Coasts Ratio: Value that determines how much of the track period was classed as coasting.
Classification: The type of track.
Show All Details: When selected this option will display more data the Track Details table:
Deletion Reason: The reason the track was dropped and deleted.
Area Covered (m): How far the track has travelled, either horizontally or vertically along the x/y-axis.
Travelled (m): How far the track has travelled.
Max Area Size (m²): the maximum area that the track has travelled.
ML Classified: If the ML Classification feature has been enabled in the Track Engine configuration, then this will be selected.
False Alarm Probability (%): The system calculates a false alarm probability score for each track.
Tag Preset: If a tag has been associated with the live track then it will be listed.
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The Track Details panel has three tabs: Sightings, Statistics and Classification. |
Sightings
This table lists every sighting of the track that makes up the track pathway. Select Show All Details to expand the table columns. Each table column title can be selected to re-arrange the order of the sightings e.g. select Range (m) to order the tracks by their Range value. If the sighting has an alarm icon, a red circle, click on the sighting to reveal the rule(s) this sighting broke. If the track has Show selected and is visible on the PPI Display, individual sightings can be selected and highlighted within the track pathway.
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Coasting: Specifies if ticked which sightings were Coasting (assumed) sightings.
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Show All Details: When selected this option will display more data the Track Details table:
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Reclassifying: This will be selected if the track sighting has been reclassified.
Alt (m): Altitude of the track for each sighting.
Area Size (m²): The area covered by the track for each sighting.
Weight: The total number of cells that make up the target for each sighting.
Strength: The radar signal strength for a target, for each sighting.
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Adjusted Weight: The total number of cells that make up the track sighting, taking into account cell beam-width increase over range.
Adjusted Strength: The sum of the signal strength for each cell which makes up the track sighting, taking into account cell beam-width increase over range.
False Alarm Probability: The system calculates a false alarm probability score for each track sighting.
Coasting: Specifies if ticked which sightings were Coasting (assumed) sightings.
Classification
This is explained under in Classification Configs.
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The Classification tab will not be available if the ML Classification feature is enabled in the Track Engine configuration. |
Statistics
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This table displays the following graphs;
Speed (m/s): The speed of that track per sighting.
Weight: The total number of cells that make up the target for each sighting.
Size: The surface area of the target, calculated using size in range x size in azimuth, per sighting.
Weight: The total number of cells that make up the target for each sighting.
Strength: The radar signal strength for a target, for each sighting.
These graphs can be ordered by:
Sighting: The order by which the track sightings were detected.
Range: Distance of sighting from the radar. This option has a sliding scale, which will adjust the graphs accordingly.
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OK: Closes the Track Details Panel.
Clone Track: create a Playback Track from selected track.
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Locate: This option will pinpoint the track on the PPI.
Export: Export track record for posterity.
Create Exclusion: Creates an Exclusion Area around the selected track's area covered. Unlike a normal Exclusion Area, tracks can recorded and followed through the Track Query Exclusion Area, but all alarms within the Area are suppressed. Therefore the Area is an exclusion zone for alarms. See Exclusion Areas for further detail.
Status: Change the status to draw specific attention to the track, and save from default track data culling.
Add Truth Data Panel
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Classification: Select the correct classification for the truth data track.
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