234
8
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
av0318-1068
PGQP2626YA
Summary of Contents for K-NL404K/G
Page 1: ...Network Disk Recorder User s Manual Model No K NL404K G K NL408K G K NL416K G Version 1 0 1 ...
Page 25: ...19 3 4 Connection Sample Please refer to Figure 3 1 for connection sample Figure 3 1 ...
Page 69: ...63 Figure 4 61 Figure 4 62 ...
Page 90: ...84 Figure 4 78 Figure 4 79 ...
Page 91: ...85 Figure 4 80 Figure 4 81 ...
Page 99: ...93 Figure 4 87 Figure 4 88 ...
Page 100: ...94 Figure 4 89 Figure 4 90 ...
Page 101: ...95 Figure 4 91 Figure 4 92 ...
Page 104: ...98 Figure 4 94 Figure 4 95 ...
Page 112: ...106 Figure 4 104 Figure 4 105 ...
Page 121: ...115 Figure 4 115 ...
Page 127: ...121 Figure 4 120 Figure 4 121 ...
Page 132: ...126 Figure 4 125 Figure 4 126 ...
Page 139: ...133 Figure 4 133 Figure 4 134 ...
Page 141: ...135 Figure 4 136 ...
Page 143: ...137 ...
Page 146: ...140 Figure 4 140 Step 2 Click Add user button Enter Add user interface See Figure 2 141 ...
Page 151: ...145 Figure 4 144 1 ...
Page 157: ...151 ...
Page 158: ...152 Please input your username and password Figure 5 3 ...
Page 191: ...185 Figure 5 41 ...
Page 192: ...186 Figure 5 42 ...
Page 193: ...187 Figure 5 43 Figure 5 44 Figure 5 45 ...
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Page 199: ...193 Figure 5 49 ...
Page 205: ...199 Figure 5 55 Figure 5 56 ...
Page 208: ...202 Figure 5 60 Figure 5 61 Figure 5 62 ...
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