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Setting Alarm Detection Parameters
FiberPatrol FP1150 Product Guide
Page 111
•
Start and End Locations:
The length of a section is defined by entering a start location and
an end location. The values for the start and end locations use the same unit that was chosen
in the System panel (meters or feet). Multiple different sections can be defined for Temporal
Environment Compensation.
•
Average Time(s):
This is the time period that Temporal Environment Compensation uses for
removing slowly-varying background signals at a location.
•
% Comp:
This is the degree of Temporal Compensation applied to each location. Higher
percentage increases common-mode rejection.
•
Notes:
The Notes column is populated with the chosen medium of each region by default.
However, the Notes field can be customized by the user.
Spatial Compensation:
Spatial Environment Compensation dynamically monitors disturbance signals over a longer length
of the sensing cable (several tens of meters) and removes common-mode disturbance signals
caused by environmental factors. Spatial Environment Compensation compares the disturbance
signal of a sensor at a specific location with a range of contiguous locations on both sides. This
range of contiguous locations is defined by the “Include Length” setting. It does not compare the
disturbance signal from the immediate locations on both sides, which are defined by the “Exclude
Length” setting.
•
Enabled? (1 yes, 0 No):
Spatial Environment Compensation is applied to the cable section if
a value of 1 is entered in this column. A value of 0 disables Spatial Environment
Compensation in the cable section.
•
Start and End Locations:
The length of a section is defined by entering a start location and
an end location. The values for the start and end locations use the same unit that was chosen
in the System panel (meters or feet). Multiple different sections can be defined for Spatial
Environment Compensation.
•
Include Length:
This is the length of cable on both sides of a location which are used to
remove common-mode disturbance signals from a location.
•
Exclude Length:
This is the length of cable on both sides of a location that are excluded from
Spatial Compensation. The Exclude Length is always less than the Include Length.
•
% Comp:
This is the degree of Spatial Compensation applied to each location. Higher
percentage increases common-mode rejection.
Motion Rejection – Parallel Settings
In some installations, the fence on which the sensor cable is installed, runs closely alongside a
roadway or railroad. If heavy vehicles or train traffic passing by the fence cause nuisance alarms,
then Motion Rejection – Parallel settings should be used to prevent these nuisance alarms. To
open the Motion Rejection – Parallel settings panel, go to the Service menu and then select
Motion Rejection – Parallel (see
).
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