V'NETWORKS System Integration Manual

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V.NETWORKS System Integration Manual
Last Updated September 5, 2003 Rev 1.0
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1. Frame Rate and Bit Rate
1. 1 Image Compression 3 1. 2 JPEG Frame Rate
(1 x Camera 1 x PC) 4 1. 3 JPEG Frame Rate (1
x Camera Multiple PCs) 5 1. 4 MPEG1 Bit Rate
(1 x Camera 1 x PC) 6 1. 5 MPEG1 Bit Rate (1
x Camera Multiple PCs) 7 1. 6 MPEG4 Bit Rate
and Frame Rate (1 x Camera 1 x PC) 8 1.
7 MPEG4 Bit Rate and Frame Rate (1 x Camera
Multiple PCs) 8
2. System Design of Multi Viewer Software
(VN-S400U)
2. 1 JPEG Image Display on PC 9 2. 2 JPEG Data
Size 10 2. 3 JPEG Frame Rate Setting for
Multiple View Windows Display 10 2. 4 MPEG4 Frame
Rate Setting for Multiple View Windows
Display 11 2. 5 JPEG/MPEG4 Frame Rate Setting for
Multiple View Windows Display 12 2. 6 Setting
Change in multiple PCs environment 13
3. Recording and File Size
3. 1 Recorded File Segment 14 3. 2 Maximum
Recorded File Size 14 3. 3 Recorded File
Format 15 3. 4 Recording and Playback on
VN-S400U Sequential Display Mode 15 3. 5 JPEG
Recorded File Size Calculation for 1
camera 16 3. 6 MPEG1 Recorded File Size
Calculation for 1 camera 17 3. 7 MPEG4 Recorded
File Size Calculation for 1 camera 17 3. 8 JPEG
Recorded File Size Calculation for multiple
cameras 18 3. 9 MPEG1 Recorded File Size
Calculation for multiple cameras 19 3. 10 MPEG4
Recorded File Size Calculation for multiple
cameras 19
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4. Network Traffic
4. 1 JPEG Network Traffic 20 4. 2 MPEG1
Network Traffic 20 4. 3 MPEG4 Network
Traffic 20
5. System Example
5. 1 Monitoring 21 5. 2 Monitoring and
Recording 22 5. 3 Alarm Recording 23
6. Others
6. 1 Technical Information for Software
Developer 24 6. 2 LAN Port Setting 25
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1. Frame Rate and Bit Rate
1. 1 Image Compression
There are three different compression by model
and by application.
For best image display on PCs, it is necessary to
understand the following specification of each
model.
JPEG Frame Rate MPEG1 Bit Rate MPEG4 Frame
Rate and Bit Rate
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1. Frame Rate and Bit Rate
1. 2 JPEG Frame Rate (1 x Camera and 1 x PC)
Set the frame rate of camera according to the
resolution and model as follows. (VN-C30U as an
example)
Figure 3 Frame Rate Setup of VN-C30U with 1 x PC
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1. Frame Rate and Bit Rate
1. 3 JPEG Frame Rate (1 x Camera and Multiple
PCs)
If more than 2 PCs are accessed to 1 camera, the
frame rate of camera should be set to less than
maximum frame rate.
The maximum number of PCs connected 1 unit of
VN-C30U is as follows 15 PCs at 160 x 120, 10
PCs at 320 x 240, 3 PCs at 640 x 480
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1. Frame Rate and Bit Rate
1. 4 MPEG1 Bit Rate (1 x Camera and 1 x PC)
MPEG1 image quality varies depending on the bit
rate setting while retaining 30 Frame/s.
It is recommended not use the bit rate higher
than 1.5Mbps because image quality between
1.5Mbps and 3.5Mbps is not noticeable.
Figure 6 MPEG1 Specification of Image
Transmission
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1. Frame Rate and Bit Rate
1. 5 MPEG1 Bit Rate (1 x Camera and Multiple PCs)
If more than 2 PCs are accessed to 1 camera, the
bit rate of camera should be set to less than
maximum bit rate.
300kbps at 160 x 120 or 1,000kbps at 320 x 240
on each camera are JVC recommended bit rate
setting.
It is recommended not to use more than 7 PCs at
320 x 240 because of very low MPEG1 image quality
when each camera is set to 500kbps or less.
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1. Frame Rate and Bit Rate
1. 6 MPEG4 Bit Rate and Frame Rate (1 x Camera
and 1 x PC)
Actual maximum frame rate at 320 x 240 is 24
frame/s, and it may go down to approx. 20 frame/s
when shooting fast-moving and/or complex objects.
1. 7 MPEG4 Bit Rate and Frame Rate (1 x Camera
and Multiple PCs)
When multiple PCs are accessed to VN-C10U, MPEG4
stream to each PC is the same resolution, bit
rate and frame rate. However, due to the
specifications of VN-C10U, the maximum number of
PC accessed to camera is 4. (5 or more PC access
is not possible)
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2. System Design of Multi Viewer Software
(VN-S400U)
2. 1 JPEG Image Display on PC
When the frame rate of camera is set to10
Frame/s, PC process the display of 10 images/sec.
With VN-S400U, it is possible to display
multiple View Windows up to 16.
More View Windows the PC display, more process
capacity is required to the PC.
2. 2 JPEG Data Size
NOTE Actual data size may vary depending on the
object and operation environment.
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2. System Design of Multi Viewer Software
(VN-S400U)
2. 3 JPEG Frame Rate Setting for Multiple View
Windows Display
Figure 12 15 are the test data of frame rate
setting vs number of view window using 4
different PCs.
NOTE CPU capacity is retained at around 80.
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2. System Design of Multi Viewer Software
(VN-S400U)
2. 4 MPEG4 Frame Rate Setting for Multiple View
Windows Display
Figure 16 17 are the test data of frame rate
setting vs bit rate setting vs number of view
window using 2 different PCs.
NOTE CPU capacity is retained at around 80.
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2. System Design of Multi Viewer Software
(VN-S400U)
2. 5 JPEG/MPEG4 Frame Rate Setting for Multiple
View Windows Display
Figure 18 19 are the test data of frame rate
setting vs number of view window using 2
different PCs. The View Windows are mixture of
JPEG/MPEG4.
NOTE CPU capacity is retained at around 80.
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2. System Design of Multi Viewer Software
(VN-S400U)
2. 6 Setting Change in multiple PCs environment
IMPORTANT The following setting can be changed
from any PC in multiple PCs environment. Once
the setting is changed by a single PC, all the
other PCs share the same setting of camera.
Image Compression JPEG/MPEG1/MPEG4 Setting
Value Resolution, Frame Rate, Bit Rate,
Compression, Picture Quality Control Pan/Tilt/Zo
om Control
NOTE These setting changes can be password
protected.
Example)
PC-1 changed the frame rate from 2 frame/s to 5
frame/s
Frame rate is changed to 5 frame/s that exceeds
the maximum frame rate, and consequently the
image update becomes not stable.
Frame rate is set to 2 frame/s as maximum frame
rate for 5 cameras at 320 x 240 (See 1. 3 JPEG
Frame Rate)
Figure 20 Information Sharing
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3. Recording and File Size
3. 1 Recorded File Segment
Standard Controller continue to record the images
in a single file until the recording stops.
VN-S400U automatically segment the recording and
create 1 file every 1 hour.
Recording Start
Recording Stop
Total 1 file
1 file
Standard Controller
3 days
VN-S400U
Total 72 files
1st day
2nd day
3rd day
Figure 21 Recording File Segment (JPEG)
3. 2 Maximum Recorded File Size
The maximum recorded file size vary depending on
the application and Windows file system.
For long recording, it is recommended to use
VN-S400U and NTFS file system.
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3. Recording and File Size
3. 3 Recorded File Format
There are two JVC original file format in JPEG
(rec and mjp) which are not compatible each
other. The mpg file in MPEG1 and asf file in
MPEG4 can be played with multimedia contents
player such as Windows Media Player. The m4r
is JVC original file format.
3. 4 Recording and Playback on VN-S400U
Sequential Display Mode
It is possible to set the sequential display of
up to 16 cameras in each View Window with
VN-S400U. VN-S400U record the images displayed
in View Window and does not record the images NOT
displayed due to the interval of sequential
display.
Figure 24 VN-S400U Sequential Display Mode
NOTE It is also possible to playback the
sequential images of Camera A, Camera B, Camera
C, Camera A.
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3. Recording and File Size
3. 5 JPEG Recorded File Size Calculation for 1
camera
Data Size per image x Frame Rate x Recording
Time (s) Recorded File Size
Example)
Camera Setting Resolution 320 x 240,
Compression rate 2, Frame Rate 2 frame/s
Q What is the file size for 1 day recording? A
15(KB) x 2(frame/s) x 86,400(sec)
2,592,00(KB) 2.59(GB) (1K 1,000) Q
How many days the recording is possible with 40GB
Hard Disk ? A 40(GB) ? 2.59(GB) 15.444
15(days)
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3. Recording and File Size
3. 6 MPEG1 Recorded File Size Calculation for 1
camera
Example)
Camera Setting Resolution 320 x 240, Bit Rate
1,000kbps
Q What is the file size for 12 hours recording?
(1K 1,000) A 1,000(kbps) ? 8(bit/Byte) x
43,200(s) 5,400,000(KB) 5.4(GB) (1K
1,000)
3. 7 MPEG4 Recorded File Size Calculation for 1
camera
Example)
Camera Setting Resolution 160 x 120, Frame Rate
15 Frame/s, Bit Rate 384kbps
Q What is the file size for 12 hours recording?
(1K 1,000) A 384(kbps) ? 8(bit/Byte) x
43,200(s) 2,073,600(KB) 2.1(GB) (1K
1,000)
NOTE 1) The above MPEG4 formula is applied only
to 160 x 120, 15 frame/s, 384kbps.
2) In case of 320 x 240, 15 frame/s, the size is
approx. 130 compared with 1) due to Codec
specification. 3) In case of 320 x
240, 30 frame/s, the size is approx. 120 130
compared with 2) due to GOV specification.
4) In case of 320 x 240, 7.5 frame/s, the
size is approx. 70 80 compared with 2) due to
GOV specification. 5) MPEG4 tend
to increase its size at lower bit rate, and
decrease its size at higher bit rate.
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3. Recording and File Size
3. 8 JPEG Recorded File Size Calculation for
multiple cameras
A) Normal Recording Mode (1 camera per View
Window)
Data Size per image x Frame Rate x Recording
Time (s) Recorded File Size
Example)
5 Cameras with the same setting Resolution 320 x
240, Compression rate 2, Frame Rate 2 frame/s
Q What is the file size of 5 cameras (5 View
Windows) for 1 day recording? A 15(KB) x
2(frame/s) x 86,400(sec) x 5(cameras)
12,960,00(KB) 12.96(GB) (1K 1,000)
B) Sequential Recording Mode (Multiple cameras
per View Window)
Example)
Camera 1 Setting Resolution 320 x 240,
Compression rate 2, 1 frame/s Camera 2 Setting
Resolution 320 x 240, Compression rate 3, 2
frame/s Camera 3 Setting Resolution 320 x 240,
Compression rate 4, 3 frame/s Camera 1, 2, 3 are
sequentially displayed in a View Window
Q What is the file size of Camera A, B, C (1
View Window) for 6 hours recording? A 15(KB) x
1(frame/s) x 21,600(sec) x 1/3
108,000(KB) 10(KB) x 2(frame/s) x
21,600(sec) x 1/3 144,000(KB) 9(KB)
x 3(frame/s) x 21,600(sec) x 1/3
194,400(KB) 108,000(KB) 144,000(KB)
194,400(KB) 446,400 446.4(MB) (1K
1,000)
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3. Recording and File Size
3. 9 MPEG1 Recorded File Size Calculation for
multiple cameras
C) Timelapse Recording Mode (1 camera per View
Window)
Example)
9 Cameras with the same setting Resolution 320 x
240, Compression rate 2, Timelapse Recording
Interval 2 seconds
Q What is the file size of 9 cameras (9 View
Windows) for 1 day recording? A 15(KB) x
86,400(sec) x 1/2 x 9(cameras)
5,832,00(KB) 5.83(GB) (1K 1,000)
3. 10 MPEG4 Recorded File Size Calculation for
multiple cameras
Example)
3 cameras with the same setting Resolution 160
x 120, Frame Rate 15 frame/s, Bit Rate 384kbps
Q What is the file size of 3 cameras for 5
hours recording? A 384(kbps) ? 8(bit/Byte) x
18,000(s) x 3(cameras) 2,592,000(KB)
2.59(GB) (1K 1,000)
NOTE Sequential display and Timelapse display
are not possible with MPEG4. MPEG1
is not compatible with VN-S400U.
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4. Network Traffic
NOTE 1) The above MPEG4 formula is applied only
to 160 x 120, 15 frame/s, 384kbps.
2) In case of 320 x 240, 15 frame/s, the traffic
is approx. 130 compared with 1) due to Codec
specification. 3) In case of 320 x
240, 30 frame/s, the traffic is approx. 120
130 compared with 2) due to GOV specification.
4) In case of 320 x 240, 7.5 frame/s,
the traffic is approx. 70 80 compared with 2)
due to GOV specification.
Overhead such as Ethernet header is
considered as 20 of data
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5. System Example
5. 1 Monitoring
Monitoring of each floor
Monitor Room
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5. System Example
Monitoring of door entrance (500
2200) Recording of door entrance (2200
500) Recorded files are stored for 7 days
5. 2 Monitoring and Recording
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5. System Example
Alarm Recording with Human detection sensor (24
hours) The recorded files are stored for 30 days
5. 3 Alarm Recording
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6. Others
6. 1 Technical Information for Software
Developers
The following technical information are available
for integrating V.NETWORKS cameras into customers
own application software or system.
In order to receive these JVC confidential
technical information, please contact local JVC
sales office and enter into the license and
non-disclosure agreements. These information are
supplied on royalty free basis.
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6. Others
6. 2 LAN Port Setting
The specification of V.NETWORKS LAN port is as
follows
Figure 24 VN-S400U Sequential Display Mode
In order to assure the proper communication
between the camera and connected device such as
switching Hub, the speed and communication mode
should be set according to the following chart
If these setting are not correctly done, the
communication between the camera and connected
device is not stable or not possible. For
example, when VN-C30U is set to Auto Negotiation,
the connected device should be set to Auto
Negotiation, 100Mbps Half Duplex or 10Mbps Half
Duplex.