Product Development Background
HD-SDI Camera
HDFDI Transceiver
Solve the problems of IP network HD products, such as the loss, trailing, dropped frames. But using traditional coaxial transmission makes the transmission distance of HD-SDI camera is only about 100 meters,which has been the main defects to its development.
Copper, which making cable requires, is limited.Because of over-exploitation of natural resources, the cost of copper and other metals climbs higher and higher,using inexpensive transmission medium has become an inevitable trend.
Extending signal transmission distance: Using the optical fiber transmission technology can improve the HD-SDI video signal transmission distance to 20km,which is suitable for HD-SDI video surveillance and video capture remotely.

          Quartz,which making fiber requires,is very
       rich. Fiber optic transmission has a strong ability to resist electromagnetic and industrial interferences, which is good for secrecy and reliability. As the technology develops, the cost will be further reduced.
Product Introduction
HDFDI Transceiver consists of HDFDI Transmitter and HDFDI receiver. Satisfy the requirements of various industries for optical transmission. It can be easily integrate into all kinds of SDI transmission system and also a idesl HD video optical fiber transmission equipment.
  • HDFDI Transceiver consists of HDFDI Transmitter and HDFDI receiver.
  • Transmitter: converting standard HD-SDI video signal to HDFDI potocol signal which is researched&developed all by Qihan, and then transmit it out through the optical fiber.
  • Receiver: receiving the HDFDI protocol signals which is researched&developed all by Qihan and converting it to standard HD -SDI video signal, and then use the standard coaxial cable BNC interface to send it out.
  • Achieving 1CH transmission with long distance, no distortion, high quality on a single fibe
  • The optical fiber transmission is up to 20km(single mode).
  • Support all HD-SDI video resolution
  • Super micro structure, small size
  • Intelligent design without debuging.
  • NO need to do software setting but support plug and play, support hot plug.
  • The LED indicator shows the states of power supply and signal.
  • Strong realtime, high stability, no interference, no attenuation and loss
  • Satisfy the requirements of various industries for optical transmission. It can be easily integrate into all kinds of SDI transmission system and also a idesl HD video optical fiber transmission equipment.


Product Appearance

HDFDI Transmitter
HDFDI Receiver


Hardware Structure

HDFDI Transceiver consists of HDFDI Transmitter and HDFDI receiver.
The hardware of HDFDI Transmitter generally includes SDI Receiver, ICORE, optical module and other parts .
HD-SDI signal
SDI
Receiver
ICORE
Optical module
Optical signal
The hardware of HDFDI Receiver generally includes SDI Driver, ICORE, optical module and other parts.
HD-SDI signal
SDI
Driver
ICORE
Optical module
Optical signal


Software Structure

The software of HDFDI Transceiver is based on the processing chip developed by Qihan


Product Chipset


Product Parameters


Product Advantage

  • Support HD-SDI HD digital video signal optical fiber transmission over a long distance.
  • Automatically identify various HD-SDI resolutions of video input,it does not need to choose manually. Users don't need to do any setting and debugging, that is connect and play.
  • Meet SMPTE274M standard.
  • Electrical signal input has the functions of automatic cable equilibrium, the output has driving function.
  • The sender and the receiver adopt the clock signal regeneration, shaping, debounce to ensure error-free transmission
  • The transmission distances is up to 20 km without relay transmission;with cascade connection,it can achieve more distance transmission.
  • Using extended cables is more suitable for engineering installation.
  • The LED indicator shows the states of power supply and signal.
Technology Introduction
HDFDI Optical combines a variety of powerful core technologies, such as: HD-SDI interfacing, Optical fiber communication technology, HDFDI HD optical fiber digital interface protocols, etc.
HD-SDI Interfacing
  • Based on SMPTE (Society of Motion Picture and Television Engineers) serial link standard, transmitting uncompressed real-time HD digital images via 75Ω coaxial cable.
  • SDI interfaces includes SD-SDI(270Mbps，SMPTE259M),HD-SDI(1.485Gbps,SMPTE292M)，3G-SDI(2.97Gbps,SMPTE424M).
  • The advantages of HD video system based on SDI interface: no-delay real-time transmission of uncompressed HD images; No distortion; Security is higher than the network system; There will be no problem such as video interruption or delay like the network system.
  • The best image source of intelligent monitoring.

Optical fiber communication technology
  • With light wave as the carrier of information transmission, fiber optic hardware as the medium of information transmission.
  • Advantage: wide band, high speed, large capacity, low loss, small volume, light weight, resisting electromagnetic interference, low crosstalk, etc.
  • Fibre channel FC standard, as a kind of high-speed serial transmission protocol, adopts the channel control signal to transmit, its flow control strategy and channel sharing, conflict solution mechanism based on the arbitration and exchange make it more efficient when dealing with shared data transmission, when the network load is heavy, its superiority is reflected.
  • FC technology make the transmission rate develop from Gbit/s to 2Gbit/s, 4 Gbit/s even 10 Gbit/s.

HDFDI HD optical fiber digital interface protocols
  • Qihan spend a lot of manpower and material resources to research&develop a new generation of optical transmission protocol: HDFDI.
  • HDFDI protocol is based on fibre channel and SMPTE protocol, the interface protocol is designed for HD video access, transmission and network problems on the current security industry.
  • Not only apply to the HD video security industry, also can be extended to commercial, military and other communications.
  • As a new generation of high-speed interconnection technology, it is a kind of reliable transmission technology with low delay, large bandwidth, high speed, strong anti-jamming capability, long transmission distance, less transmission loss.
  • Support multiple types of protocol mapping, support three kinds of topology structure and five types of services, set the advantages of network communication technology and channel control technology into one. At the same time, it focuses on improving the fusion and transmission of HD video, audio, control and other technologies.
  • HDFDI provides a variety of media connection, define the physical layer of fibre channel transmission, including the transmission medium, transmission rate, topology structure , and an optical transceiver&controller interface.
  • Transmission Rate: 270Mbps, 1.485Gbps, 2.97Gbps and other higher transmission rates, it can support any resolution video of SD-SDI, HD-SDI and 3G-SDI standard in the current security industry.
  • HDFDI protocol combines Fibre Channel technology and SMPTE technology, preferentially support HD audio&video access and transmission.
  • The protocol has strong expansibility, can support higher-resolution real-time HD video
  • It is the first optical fiber transmission and network control protocol which is the only one independently designed in China.
  • All kinds of optical products connect to each other in the network via HDFDI protocol which is researched&developed all by Qihan. Through unified management of platform software. It has good adaptability for the diversity and complexity of network topology, so it can be widely used in intelligent HD surveillance equipment field and extended to other communication industries.

HDFDI High-level protocol mapping layer IP、SMPTE (extendable)
HDFDI service layer Special services,such as broadcast transmission mechanism (extendable)
HDFDI protocol layer HDFDI frame structure, communication protocol, service class
HDFDI coding Layer Coding rule8/10B,16/20B(extendable)
HDFDI physical layer Transmission medium, transmission rate, interface

Application Example
Products for a variety of remote real-time monitoring of high-definition systems, as well as highway, traffic Police, Customs, squares, stadiums, banks, transportation, residential and other real-time video and video quality with higher requirements for the occasion.

In the far end, HD-SDI camera output standard HD-SDI video signal. Via the HDFDI transmitter, the signal is converted to HDFDI protocol signals which is researched&developed all by Qihan and sent through fiber. HDFDI receiver receives this signal and convert it to standard HD-SDI video signal,and then use the standard coaxial cable BNC interface to transfer it out.

Users can use the SDI-HDMI converter or other conversion equipment to access HD monitor and monitor front-end real-time images, The transmission distance is up to 20 km (without relay).

It apply to a variety of remote HD real-time monitoring system.

Users can use SDI DVR to store HD-SDI camera images. You can connect a computer or a monitor via Ethernet, achieving real-time monitoring, storage, playback and remote management of SD-SDI video.
It apply to a variety of remote HD real-time monitoring&storage system.
Video Clip
HDFDI Optical using advanced uncompressed digital HD video and high-speed digital fiber optic transmission technology, stable performance, clear picture quality, high reliability, battery interference, industry has a strong ability to resist interference.

Daytime Outdoor with Video Clip
350Meters with 5mm Wide Angle Lens

• QH-SB441
• 1/2.5" Progressive CMOS
• QIHAN ISP,2.0 Megapixel
• 1080P 25/30fps

Daytime Outdoor with Video Clip
350Meters with 5-50mm Lens(5mm)

• QH-SB441
• 1/2.5" Progressive CMOS
• QIHAN ISP,2.0 Megapixel
• 1080P 25/30fps

Daytime Outdoor with Video Clip
350Meters with 5-50mm Lens(50mm)

• QH-SB441
• 1/2.5" Progressive CMOS
• QIHAN ISP,2.0 Megapixel
• 1080P 25/30fps

Series Products
All kinds of optical products connect to each other in the network via HDFDI protocol which is researched&developed all by Qihan. Through unified management of platform software.
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