267
7 Appendix A HDD Capacity Calculation
Calculate total capacity needed by each device according to video recording (video recording type and
video file storage time).
Step 1: According to Formula (1) to calculate storage capacity
i
q
that is the capacity of each channel
needed for each hour, unit Mbyte.
1024
3600
8
i
i
d
q
(1)
In the formula:
i
d
means the bit rate, unit Kbit/s
Step 2: After video time requirement is confirmed, according to Formula (2) to calculate the storage
capacity
i
m
, which is storage of each channel needed unit Mbyte.
i
m
=
i
q
×
i
h
×
i
D
(2)
In the formula:
i
h
means the recording time for each day (hour)
i
D
means number of days for which the video shall be kept
Step 3: According to Formula (3) to calculate total capacity (accumulation)
T
q
that is needed for all
channels in the device during
scheduled video recording
.
c
i
i
T
m
q
1
(3)
In the formula:
c
means total number of channels in one device
Step 4: According to Formula (4) to calculate total capacity (accumulation)
T
q
that is needed for all
channels in device during
alarm video recording (including motion detection)
.
c
i
i
T
m
q
1
×
a%
(4)
In the formula
：
a%
means alarm occurrence rate
Содержание ECL-NVR16P-DH
Страница 1: ...ECL NVR16P DH User s Manual V 1 3 0 Our units do not support PAL...
Страница 11: ...x Accessories Check the following accessories after opening the box Please refer to the packing list in the box...
Страница 81: ...140 Figure 4 74 Figure 4 75...
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Страница 88: ...147 Figure 4 82 Figure 4 83...
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Страница 90: ...149 Figure 4 86 Figure 4 87...
Страница 92: ...151 Figure 4 89 Figure 4 90...
Страница 95: ...154 Figure 4 92 Figure 4 93 4 11 1 1 Connection The connection setup interface is shown as in Figure 4 94...
Страница 115: ...174 Figure 4 116 In Figure 4 116 click one HDD item the S M A R T interface is shown as in Figure 4 117 Figure 4 117...
Страница 130: ...189 Figure 4 136 Figure 4 137 4 14 3 1 Add Modify Group...
Страница 171: ...230 Figure 5 53 Figure 5 54...
Страница 172: ...231 Figure 5 55 Figure 5 56 Figure 5 57...
Страница 176: ...235 Figure 5 61 Figure 5 62...
