Configuring Tamper Detection; Calibrating Of Tamper Detection; Figure 7-13 Calibration Of Blind Tamper Detection - Honeywell Rapid Eye System Administration Manual

Enhancing Video

Configuring Tamper Detection

TIP!

Calibrating of Tamper Detection

Slider
130
1. Continue or start a
Maintenance Session
2. Click the Video tab. By default, Record/Motion/Image is selected.
3. Select Tamper Detection. A panel is displayed for configuring tamper detection (see
Figure 7-12).
4. You have the option of enabling the automatic detection of three types of sabotage:
Blind, Blur or Scene Changed, singly or in combination.
5. Lower or raise the threshold of detection for each type of sabotage, by dragging each
Detection Threshold cursor, as needed (see
midpoint (50), on a scale of 1 to 100.
6. Select Alarm or Log, as needed. See
on page 204. Each type of sabotage detection that is enabled will use the
Logged
selection. If neither Alarm nor Log is selected, tamper detection will not be reported.
The Blind type of tamper detection can be used for fixed and PTZ cameras.
Caution Blur and Scene Changed are tamper detection types designed for fixed
cameras only, not for PTZ use. Using pan, tilt or zoom commands will
trigger Blur and Scene Change tamper detection.
Figure 7-13 Calibration of Blind Tamper Detection
Threshold
Detection Meter
Above each slider for setting the detection threshold of Blind, Blur and Scene Changed, a
meter shows the tamper detection activity. The meter is green when activity is below the
threshold, and red when the activity is above the threshold. If there is no activity, the meter
is empty. See
Figure 7-13.
Blind. A camera can be blinded by too much or too little light. To calibrate, cover the
camera with an opaque cloth or box, or prop a strong light in front of the camera. Blinding
a camera also triggers the Blur and Scene Change types of tamper detection. Note that
turning lights on/off at the scene can indirectly blind a camera. Panning a PTZ camera from
a light colored scene to a darker scene (or from the dark to a light scene) can also have that
effect. Lowering the threshold can compensate if blinding is detected too often.
Blur. It is not recommended to alter a camera's focus after installation. To simulate a
focus-blurring incident, use a lens-like sheet of glass or plastic, or a transparent container
of water and prop it in front of the camera during calibration.
for the Rapid Eye Multi-Media site.
7-13). The default value is at
Figure
Setting an Event to Trigger an Alarm or To Be
Meter shows the tamper
detection activity