digital video interface comparison for global security applications
TRANSCRIPT
![Page 1: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/1.jpg)
1
Move from Analog to Digital in Global Security Systems
Which interface is best?
![Page 2: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/2.jpg)
2
Video interface requirements for global security systems:• Minimize SWAP-C
- Number of cables needed for interfacing- Size and number of connectors needed for interfacing- Power consumption of interface- Cost of cables
• Long cable lengths and flexible cables for routing throughout vehicles and use with slip rings
• High reliability• Support HD resolution (color) at 60 frames/second and enable
various image formats for backwards compatibility• Allow for upgrades to greater resolutions in the future
- New CMOS sensors will enable even greater identification capabilities, sensitivity in low light situations, and recognition from greater distances
![Page 3: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/3.jpg)
3
A quick overview of the specs
![Page 4: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/4.jpg)
4
Camera Link (Single Cable)• Pros
- Well-established standard that is reliable for short distance connection
- Enables various image formats - Good for upgrade of camera in existing system using
Camera Link- Power over the cable is optional
• Cons- Limited bandwidth (only up to 30 fps possible with full HD
color)- Does not allow for future upgrades of greater resolutions- Short, stiff, expensive cables
![Page 5: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/5.jpg)
5
HD-SDI/3G-SDI
• Pros- Well-established interface that is good when standard
HDTV is good enough for system - Upgrade of camera in existing system that is already
using HD-SDI • Cons
- Does not allow for different image formats or greater resolutions than HD (TV focused)
- Extra cables for power, communication, triggering etc. are required
![Page 6: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/6.jpg)
6
GigE Vision
• Pros- Provides a traditional way of setting up video networks- Long, flexible, inexpensive cables
• Cons
- Large R45 connector- Processing required to pack and unpack video generates
additional heat and uncertain latency (reliability issues)- Bandwidth limited (no HDTV without compression possible
over GigE)- Accurate triggering over the cable may be difficult to
implement
![Page 7: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/7.jpg)
7
USB3 Vision
• Pros- Commonly known standard based on consumer interface- No frame grabber required (interface card required)
• Cons
- Large connector and interface driver- Maximum throughput unpredictable (chipset, PC
motherboard and driver dependent) - Sustainable speed is much lower than theoretical limit- Unreliable operation with longer cables (>3 m)
![Page 8: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/8.jpg)
8
CoaXPress• Pros
- One interface standard for systems today and in the future –moving to 12 Gbps per cable
- One flexible cable solution (includes power over cable): lowest SWAP and Cost
- One cable interface - EMC/EMI friendly- Backward compatibly with 75 Ohm Coaxial cable (when
using existing infrastructure like HD-SDI or even analog)- Any display format is possible - Low latency and stable video transfer, reliable with
hardware control through direct memory access• Cons
- Requires a frame grabber- Relatively new standard, not yet well-known in the
industry
![Page 9: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/9.jpg)
9
Overview of Pros and Cons
![Page 10: Digital Video Interface Comparison for Global Security Applications](https://reader035.vdocuments.mx/reader035/viewer/2022070521/58f019591a28abdc448b45f3/html5/thumbnails/10.jpg)
10
EUROPE ● N-AMERICA ● JAPAN ● ASIA-PACIFICAdimec.com
www.adimec.com