Sony FCB camera block
In scenarios such as safe cities, smart transportation, and industrial security, the stability, picture quality, and cost of video transmission directly affect the performance of the monitoring system. At present, network interface (IP), HDMI interface and SDI interface are the three mainstream output solutions in the field of security monitoring. The VRS-UD350 LVDS/MIPI to network interface board, HD HDMI interface board and 3G-SDI interface board independently developed by Ruiloog Electronic are also the video solutions that are widely chosen in the security monitoring industry. Due to their different technical characteristics, the three are suitable for different scenarios with different focuses.
Ruiloog Electronic, a provider of high-definition video secondary development solutions, will start from technical principles, core advantages and typical application scenarios to offer selection references for industry users.
I. Network Interface (IP) : The “Nerve Center” of Remote Monitoring
1. Technical principle:
The network interface is based on the TCP/IP protocol. For instance, the VRS-UD350 LVDS/MIPI to Network interface board converts camera video signals into network video signals and transmits them via LAN/WAN, supporting multi-device networking and remote access. Its core advantage lies in “de-regionalization” – through streaming media multicast technology, a single server can simultaneously push high-definition videos to hundreds of clients, and device expansion only requires extending the IP address without upgrading the network bandwidth.
2. Core advantages:
Unlimited scalability: The IP address recognition mechanism supports seamless system expansion, making it suitable for large-scale parks and cross-regional monitoring projects.
Cost advantage: Taking a certain safe city project as an example, the equipment cost of the IP solution is lower than that of SDI, and it supports value-added functions such as AI analysis and cloud storage.
Flexibility: Compatible with new technologies such as 5G and edge computing, it can be adapted to mobile scenarios such as drone inspection and vehicle-mounted monitoring.
3. Typical scenarios
The “Full Coverage” project of Safe cities
Remote centralized management of chain supermarkets
Vehicle trajectory tracking at traffic checkpoints
Ii. HDMI Interface: The “Picture Quality Leader” for Local Display
1. Technical principle:
HDMI (High Definition Multimedia Interface) transmits uncompressed digital video and multi-channel audio through a single cable, supporting ultra-high-definition resolutions of 8K/60Hz and 4K/120Hz, and integrates HDCP encryption technology to prevent content piracy. Its bandwidth reaches 5Gbps, which is 30 times that of the VGA analog interface, ensuring zero signal attenuation.
The HD HDMI interface board independently developed by Ruiloog Electronic supports 1080P/60fps and can meet the requirements of full high-definition and high frame rate scenarios.
2. Core advantages:
Ultimate picture quality: Directly transmits digital signals, avoiding analog-to-digital conversion loss, suitable for scenarios with strict detail requirements.
Plug and play: HD HDMI interface board, connected to the high-definition camera module via LVDS cable, automatically recognizes high-definition signals and PELCO-D/P protocol.
3. Typical scenarios
Financial counter transaction monitoring (Clear capture of banknote counting actions is required
Prison meeting room conversation record (audio and video need to be transmitted simultaneously)
The large screen in the command center is spliced and displayed
Iii. SDI Interface: The “Zero Latency King” in Professional Fields
1. Technical principle:
SDI (Serial Digital Interface) transmits uncompressed digital signals via 75-ohm coaxial cables and supports multiple resolutions from 480i to 4K. Its standards include SD-SDI (270Mbps), HD-SDI (1.485Gbps), 3G-SDI (2.97Gbps), 6G-SDI (6Gbps) and 12G-SDI (12Gbps), with a transmission distance of up to 120-400 meters (without relays).
The 3G-SDI interface board independently developed by Ruiloog Electronic is compatible with Sony’s FCB series and other brand camera modules that follow the Sony VISCA protocol.
2. Core advantages:
Zero-latency transmission: Uncompressed signals ensure the real-time performance of images. Theoretically, it has no latency and is low, making it suitable for scenarios that require immediate response.
High-definition guarantee: The original image information remains intact, and the color reproduction is superior to that of the compression coding scheme.
Compatibility: It can directly replace traditional analog systems, protecting users’ existing line investments.
3. Typical scenarios
Intelligent traffic intersection license plate recognition (real-time capture of high-speed moving targets is required)
Medical image monitoring in the operating room (lossless transmission of endoscope images is required
Radio and television studio (requiring simultaneous transmission of multiple 4K signals)
Iv. Selection Decision: Scene adaptation takes precedence over technical preference
For large-scale networked projects: Prioritize IP interfaces and leverage their scalability and cost advantages to build a distributed architecture.
Local high-precision monitoring: HDMI interface paired with 1080P/4K/8K displays ensures the accuracy of command and decision-making.
Professional real-time scenarios: The SDI interface offers lossless picture quality and microsecond-level latency, meeting the demands of financial transactions, medical surgeries, and more.
Future trends: With the popularization of new standards such as 12G-SDI and HDMI 2.1, interface performance will continue to improve. IP interfaces, due to their deep integration with AI and 5G, still play a crucial role in the security market.
Conclusion
There is no “perfect interface”, only “better choice”. Network interfaces reshape the security ecosystem with flexibility, HDMI defines display standards with picture quality, and SDI safeguards the professional bottom line with real-time performance. Industry users need to find a balance among budget, scenario complexity and long-term expansion requirements. After all, the ultimate goal of a surveillance system is not to “transmit video”, but to “convey value”.
The VRS-UD350 LVDS/MIPI to network conversion, HD HDMI and 3G-SDI interface board high-definition video secondary development solution will be showcased at the 20th China International Exhibition on Public Security and Safety. At that time, we sincerely welcome you to come to the site for experience and exchange.
Time: October 28-31, 2025
Location: Shenzhen Convention and Exhibition Center (Futian)
Booth No. : 1C43, Hall 1