Elmo dvr v5.01 Manuale Utente
5. Set the Background Refresh Time (1s - 1800s). If Intelli-Guard™ detects no changes in the monitored
area, it will update the area picture according to the selected schedule. This will decrease the cumulative image dif-
ference caused by normal occurrences, such as changing illumination across the period of a day. By default, the reload
time is set to 20 seconds. It can be adjusted from 1s to 1800s. To keep the same background at all times, check the
Never Update Background checkbox.
ference caused by normal occurrences, such as changing illumination across the period of a day. By default, the reload
time is set to 20 seconds. It can be adjusted from 1s to 1800s. To keep the same background at all times, check the
Never Update Background checkbox.
6. Configure Detection Size (10p - 100p). This parameter determines the number of pixels representing 1 (one)
"block". At least one block has to be detected by Intelli-Guard to trigger the alarm. The smaller the size of the block,
the more "sensitive" will Intelli-Guard become and the smaller the size of the objects that will set off the alarm.
the more "sensitive" will Intelli-Guard become and the smaller the size of the objects that will set off the alarm.
For instance, assume that a bird occupies 10 pixels in a resolution of 720x480. If the Detection Size is set to 10 pixels,
the bird will represent 1 block; therefore the alarm will be triggered. However, if the Detection Size is set to 20 pixels,
the bird will no longer represent 1 block and will be omitted by the Intelli-Guard. A larger Detection Size, thus, detects
larger objects (e.g. people) and omits smaller ones. This setting is used to decrease the number of false alarms. After
configuring this setting, it is important to run trials to ensure that the Detection size is reacting to objects of a desired
size. On the screen, the area of a detected change will be indicated by, green outline with a number. The number
indicates how many detection blocks make up the area.
the bird will represent 1 block; therefore the alarm will be triggered. However, if the Detection Size is set to 20 pixels,
the bird will no longer represent 1 block and will be omitted by the Intelli-Guard. A larger Detection Size, thus, detects
larger objects (e.g. people) and omits smaller ones. This setting is used to decrease the number of false alarms. After
configuring this setting, it is important to run trials to ensure that the Detection size is reacting to objects of a desired
size. On the screen, the area of a detected change will be indicated by, green outline with a number. The number
indicates how many detection blocks make up the area.
In the example below, motion was detected in an area, which is made up of 5 detection blocks. To have the number
of detection blocks shown on the live view screen, click Show Objects. To hide them, click Hide Objects.
of detection blocks shown on the live view screen, click Show Objects. To hide them, click Hide Objects.
7. Configure Detection Sensitivity (10% - 97%). This parameter accounts for the even (global) change in image
brightness. This percentage determines the acceptable level of brightness change. If the illumination is increased
slowly and evenly, it is unlikely to cause an alarm. However, if the light switch is suddenly turned on in a dark room,
the dramatic change in image brightness will set off the alarm.
slowly and evenly, it is unlikely to cause an alarm. However, if the light switch is suddenly turned on in a dark room,
the dramatic change in image brightness will set off the alarm.
8. Select the Sound Wave File for the audio alarm
a. In the Area menu, locate the Sound Wave File field
b.
Click the Browse button
to locate the *.wav sound file that will play every time that the alarm is triggered.
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ELMO DVR User Manual v5.01
Intelli-Guard™
ELMO DVR Server
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