[Tampering Detection] Page - JVC VN-H657U Instructions Manual

[Tampering Detection] Page

This page sets the tampering detection
parameters.
Such cases are usually thought to be caused by
blocked lenses or obstructing objects.
This page can be used during access using
"admin" or "operator".
Click [Advanced Settings] in the side menu, and
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click [Tampering Detection].
Press the [OK] button to enable the new
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settings.
If the [OK] button is pressed upon entering an
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invalid value, a warning message will appear
and the entry will be denied. Press the [Cancel]
button to restore the invalid entry to the value
before the change was made. If you press the
[Cancel] button, other changed items will also be
restored to the values before the change was
made.
If the distribution capability of the camera is
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exceeded when images are acquired from the
camera by the Built-in Viewer or other clients,
images may not appear on the [Tampering
Detection] page. Stop the Built-in Viewer or
other clients before using the [Tampering
Detection] page.
(A P87 [Exiting Built-in Viewer] )
Note :
The tampering detection feature is not intended
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to prevent theft or fire. This feature may not
function properly depending on the conditions of
the object and settings.
Our company shall not be liable for any accident
or damage that occurs.
Detection may not work depending on the
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installation conditions and subject.
When [Motion Detection] is set to "ON", the
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tampering detection feature cannot be used.
When the [Tampering Detection] page is
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opened, electronic zoom is canceled.
[Advanced Settings] Page - [Tampering Detection] Page
60
Settings
.
* Setting values with R are default values.
Verification Screen
When tampering is detected, the area around the
viewer is highlighted in red.
.
Memo :
Tampering is deemed to have occurred when
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the brightness data of the image converges on
a single value.
Tampering Detection
Sets tampering detection to ON/OFF.
[Set values: ON, ROFF]
Level
For setting the sensitivity level of tampering
detection.
Increasing the number raises the detection
sensitivity level, and hence it is more sensitive.
[Set values: 0 to R4 to 10]
Detection Time
For setting the minimum duration for which
tampering is deemed detected.
Tampering is detected if an image meets the
conditions for tampering detection for a duration
longer than the preset time.
[Set values: R5, 10, 30, 60, 120]sec
A red frame is
displayed
when
tampering is
detected