
User's Manual
346
Appendix 1 HDD Capacity Calculation
Calculate the total capacity needed by each device according to video recording (video
recording type and video file storage time).
1. According to Formula (1) to calculate storage capacity
that is the capacity of each
channel needed for each hour, unit Mbyte.
In the formula: means the bit rate, unit Kbit/s
2. After video time requirement is confirmed, according to Formula (2) to calculate the
storage capacity
, which is storage of each channel needed unit Mbyte.
In the formula:
means the recording time for each day (hour)
means number of days for which the video shall be kept
3. According to Formula (3) to calculate total capacity (accumulation)
that is needed for
all channels in the device during scheduled video recording
.
In the formula:
means total number of channels in one device
4. According to Formula (4) to calculate total capacity (accumulation)
that is needed for
all channels in device during alarm video recording (including motion detection)
.
In the formula:
means alarm occurrence rate
Содержание N41C1P
Страница 1: ...Network Video Recorder User s Manual Dahua North America V2 3 1...
Страница 44: ...User s Manual 28 3 5 2 N42C1P N42C2P N42C3P N52B5P N54A4P N54B3P N54B5N Figure 3 52 Typical connection...
Страница 45: ...User s Manual 29 3 5 3 N42C1P N42C2P N42C3P N52B5P N54A4P N54B3P N54B5N Figure 3 53 Typical connection...
Страница 70: ...User s Manual 54 The shortcut menu is different for different models Figure 5 23 Shortcut menu 1...
Страница 235: ...User s Manual 219 Figure 5 179 TCP IP Step 2 Click to configure the NIC card and then click OK...
Страница 282: ...User s Manual 266 Figure 5 225 User Step 2 Click Add Figure 5 226 Add user Step 3 Configure the parameters...
Страница 286: ...User s Manual 270 Figure 5 229 Pattern login...
Страница 346: ...User s Manual 330 Figure 5 290 Shutdown 2...
Страница 377: ...User s Manual Dahua Technology USA 15245 Alton Parkway Irvine CA 92618 949 679 7777...