1-20
System Design Concept
Required Hard Disk Capacity
The size of the images varies depending on the configuration of the Camera Server (the settings for Quality
and Resolution) and the complexity of the actual image.
Determining Required Hard Disk Capacity
Determine the required hard disk capacity as follows.
1. Determine the required number of Camera Servers and required video data size.
2. Select the Image Quality of each Camera Server.
The video quality improves in proportion to the set value, but the data volume also becomes larger.
3. Determine the frame rate for recording video (i.e., the number of frames per second).
For general security purposes, 1 to 2 fps is common. Higher frame rate requires more hard disk space.
4. Determine the recording period per day and duration to retain data.
5. After determining the conditions above, calculate the required hard disk capacity due to the video data size
(in KB).
6. If you record audio, to calculate the amount of hard disk space required for the audio data. The data size for
recording audio is 8 KB/s regardless of the type of Camera Server.
When determining hard disk sizes it is important to take into account that there needs to be considered about
10 to 20% additional room.
Example 1: JPEG recording
• Using 16 Camera Servers (VB-C60) for recording,
• With each camera set to Medium Size for video data size and Image Quality set to 50 (data size per 1
frame: 15KB),
• Recording frame rate is set at 2 fps, and
• Data size per second is approximately 30 KB (= 15 KB x 2fps).
Although actual data size depends on objects shot by each Camera Server, this calculation assumes
the typical size shown above.
• Audio recording as also performed simultaneously on 2 of the Camera Servers.
For the above configuration, when JPEG images from 16 camera servers are being recorded continuously at 2
frames per second all day, every day, the required hard disk space is approximately 40GB per day (=30KB x
16 cameras x 60 seconds x 60 minutes x 24 hours = 41472000KB per day).
When audio is recorded by 2 camera server, the required hard disk space is approximately 1.3 GB per day (=8
KB x 2 units x 60 seconds x 60 minutes x 24 hours = 1382400 KB).
VK-64_SysManual_Ev21.book 20 ページ 2009年3月2日 月曜日 午後1時3分
CO
PY
Summary of Contents for VK-16 v2.1
Page 15: ...System Overview VK 64_SysManual_Ev21 book 1 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 45: ...Installation VK 64_SysManual_Ev21 book 1 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 52: ...2 8 Installation Procedures VK 64_SysManual_Ev21 book 8 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 80: ...3 28 Set User Management Tab VK 64_SysManual_Ev21 book 28 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 151: ...Viewer Reference VK 64_SysManual_Ev21 book 1 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 212: ...5 62 Use Timeline and View Events VK 64_SysManual_Ev21 book 62 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 213: ...Operation and Management VK 64_SysManual_Ev21 book 1 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 221: ...Backup Scheme VK 64_SysManual_Ev21 book 1 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 235: ...System Maintenance VK 64_SysManual_Ev21 book 1 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 242: ...8 8 Camera Server Maintenance VK 64_SysManual_Ev21 book 8 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 243: ...Troubleshooting VK 64_SysManual_Ev21 book 1 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 278: ...9 36 Messages List VK 64_SysManual_Ev21 book 36 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...
Page 279: ...Appendix VK 64_SysManual_Ev21 book 1 ページ 2009年3月2日 月曜日 午後1時3分 COPY ...