Huawei IPC6122-P Configuration Manual page 74

IPC6122-P
Configuration Guide
Table 9-1 Parameter description
Parameter
Alarm check interval
Sensitivity
Step 4 Click Save.
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Issue 02 (2016-04-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
9 Configuring the Video Block Detection Function
Description
Time interval at which the system checks
for new alarms.
NOTE
Only one alarm is reported if multiple times of
video block happen within a single alarm check
interval. This is to avoid repeated alarms.
Sensitivity for triggering an alarm.
A higher sensitivity indicates that an object
with a smaller block size and higher
brightness can be identified. In this case,
lens block alarms can be triggered more
easily.
NOTE
l Sensitivity = 1: An alarm is generated when
the block area ratio is about 95%.
l Sensitivity = 2: An alarm is generated when
the block area ratio is about 90%.
l Sensitivity = 3: An alarm is generated when
the block area ratio is about 85%.
l Sensitivity = 4: An alarm is generated when
the block area ratio is about 80%.
l Sensitivity = 5: An alarm is generated when
the block area ratio exceeds 70%.
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