Red Lion IndustrialPr 6000 Router - Manual (Page 99)

Software User Guide 99
Services Tab
When the GeoFence engine begins to build a fence, it will calculate an allowed Minimum Radius using an accuracy fig‐
ure based on an average of 200 location points acquired over an interval of 15‐20 minutes. This value is then multi‐
plied by the Lockdown Radius Multiplier to obtain the Modified Minimum Radius.
The Modified Minimum Radius will not be allowed to be less than the Minimum Accuracy, and will be increased to the
Minimum Accuracy as needed. The Minimum Accuracy will also provide a lower limit for the Fixed Lockdown Radius.
The allowable range is 0‐2000.
Fixed Lockdown Radius (Required): The value of the Fixed Lockdown Radius may be entered in this field. The recom‐
mended setting for this option is 0 (off).
GeoFence behavior can be described in the following ways:
• Flexible radius: To select this option, the Fixed Lockdown Radius must be set to 0.
• Flexible radius with additional fixed buffer: To select this option, enter a value, preceded with ‘+’.
• Fixed radius: To select this option, enter any non‐zero value.
During the establishment of a GeoFence, a set of 200 location points are obtained over a period of 15‐20 minutes to
determine an initial ‘minimum radius’ possible for the device. The Flexible radius behavior uses the Calculated Mini‐
mum Radius and the configured Lockdown Radius Multiplier values to set the GeoFence boundary. Setting the Fixed
Lockdown Radius to a positive offset (+20, for example) has the effect of adding a fixed amount of buffer space to the
Calculated Minimum Radius, and the Lockdown Radius Multiplier has no effect.
For Fixed Radius behavior, the configured value for the Fixed Lockdown Radius is used to set an absolute minimum
radius for the GeoFence, subject to increase by the configured Minimum Accuracy or Calculated Minimum Radius val‐
ues as needed.
Note that since the calculated minimum radius may change over time depending on acquired GPS location data, the
value will never be allowed to become less than the Minimum Accuracy nor the Calculated Minimum Accuracy.
Number of Violations to ignore (Required): Enter the number of violations to ignore in this field. The recommended
value for this field is 10‐30 points (approximately 20‐60 seconds).
To limit false alarms from occasional drifting GPS points, this value will ignore a certain number of anomalous points
before alerting a SixView Manager server. This prevents an inaccurate site from constantly updating the SixView Man‐
ager with dubious information. New points are received about every 2 seconds. The allowable range is 0‐300.
Violation Grace Period (Required): The value of the Grace Period may be entered in this field. The recommended set‐
ting for this field is 60.
Once we have ignored the first few anomalous location fixes, points outside the GeoFence are considered a violation .
This timer specified (in seconds) how long to tolerate points outside the GeoFence boundary, before declaring a full
“Violation Outside” and enacting the “Violation Action”. The allowable range is 30‐600.
Maximum Loss‐of‐data time (Required): The maximum number of seconds for which no GPS data is received may be
entered in this field. The recommended setting for this field is 120.
Ordinarily, a GPS device generates location information updates on a continuous regular periodic basis. A loss of these
updates may be due to a temporary or intermittent reception issue, or due to the device having been moved to an
area devoid of GPS reception or disconnection or an external GPS receiver, either deliberately or accidentally by per‐
sons authorized to do so or not.
This parameter sets the period of GPS data loss beyond which the device may be considered having been tampered
with and subject to securing actions. The allowable range is 30‐1200.
Select Violation Action: Select the action to be taken when a protected perimeter violation occurs using the drop‐
down list provided. The available options are: