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Smart city
Smart City SDI Board
Core Features
● Multi-format video full-domain access
Supports three mainstream video interface inputs—3G-SDI, CVBS, and HDMI—offering seamless compatibility with professional broadcasting equipment in smart cities, legacy analog cameras, and modern ultra-high-definition signal sources.
● 4K Ultra-High-Definition Processing and Presentation
The HDMI interface supports 4K@30Hz ultra-high-definition signal processing and output, delivering exceptionally sharp and detailed visuals for the command center’s large-screen displays.
● Broadcast-grade signal processing quality
The professional SDI interface supports uncompressed, zero-latency digital video signal transmission and loop-out, ensuring the integrity and real-time performance of critical video footage.
● FPGA hardware real-time processing
Video signal format conversion, scaling, switching, and overlay are implemented based on the Xilinx Artix-7 FPGA. All processing is performed at the hardware level, resulting in extremely low latency and high stability and reliability.
● Industrial-grade, high-reliability design
Featuring industrial-grade chips and a precision PCB design, it supports wide-temperature operation from -40℃ to +85℃ and 7x24-hour uninterrupted operation, meeting the demanding outdoor environmental requirements of smart cities.
Email: sales@sengkeda.com
Core specification parameters
| Parameter Category | Detailed indicators |
| Main processor | Xilinx XC7A100T-2FGG676I FPGA |
| Logic unit | 101,440 Logic Cells |
| Block storage | 4,860 Kb Block RAM |
| DSP Slices | 240 DSP48E1 Slices |
| Video Processing | Supports real-time video format conversion, scaling, and OSD overlay. |
| System memory | Onboard 1GB DDR3 (32-bit) |
| Configure the memory | Onboard 128Mb SPI Flash |
| Power supply | DC +12V, total board power consumption < 8W (typical) |
| Operating temperature | -40°C ~ +85°C (Industrial Grade) |
| Board card size | 125mm x 85mm (customizable) |
Interface Information
| Interface Type | Quantity/Specification | Function Description and Smart City Applications |
| Professional video input | 1x 3G-SDI IN (BNC connector) | Connect to SDI signal sources such as broadcast cameras and professional video switchers, supporting 1920×1080 at 60fps. |
| Professional video loop output | 1x 3G-SDI LOOP OUT (BNC connector) | Pass the input SDI signal through a lossless loop-out for cascading to the next device. |
| Analog video input | 1x CVBS IN (BNC connector) | Connects to composite video signals from legacy analog cameras, DVDs, and other sources, supporting 720P resolution. |
| Analog video loop-out | 1x CVBS LOOP OUT (BNC connector) | Loop the input CVBS signal for signal monitoring or cascading. |
| High-definition digital input | 1x HDMI IN | Connect to high-definition signal sources such as 4K cameras, computers, and set-top boxes, supporting 3840×2160 at 30Hz. |
| High-definition digital output | 1x HDMI OUT | Output to 4K displays, video walls, video conferencing terminals, etc., supporting 3840×2160 at 30Hz. |
| Control interface | 1x UART (TTL level) | Receive instructions from the host computer and perform control operations such as mode switching and screen settings. |
| Expansion interface | 1x Extended pin header | Provides interfaces such as I2C, SPI, and GPIO for functional expansion. |
| Power interface | 1x DC Jack | +12V DC power input. |
Software and Features
- Format Conversion: Supports mutual conversion between SDI, CVBS, and HDMI signals (e.g., SDI to HDMI output).
- Resolution Scaling: Supports adaptive scaling from different input resolutions to the output resolution.
- OSD Overlay (On-Screen Display): Allows overlaying subtitle information such as time, channel name, and LOGO via commands.
- Switching: Supports switching the current video source via commands.
- Low Latency: Pure FPGA hardware processing with latency less than one frame.
Software and Development Support
- Development environment: Xilinx Vivado Design Suite.
- IP cores provided: SDI transceiver IP, HDMI transceiver IP, and video processing IP (including scaling, switching, and overlay).
- Provide a reference design: Offer the source code for a reference project that supports multi-channel video switching.
- Technical Support: Provide technical documentation and hardware design guidelines to assist customers with secondary development.
Typical application scenarios
- Smart City Command Center: It uniformly converts SDI signals from road surveillance, legacy analog signals, and 4K map signals into 4K HDMI outputs for display on large screens.
- Broadcasting and television systems: Used as small-scale video switchers or format converters in studios and mobile broadcasting systems.
- Video conferencing system: Connects to multiple video sources in different formats, enabling seamless switching and output.
- Educational Recording System: Switch between the lecturer’s close-up view (SDI), PPT content (HDMI), and student feed (CVBS).
- Security Surveillance Upgrade: While retaining the existing analog system, integrate new high-definition equipment and implement unified management.
Keywords：Smart City SDI Board
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Guangzhou SENGKEDA Technology Co., Ltd
Contact: Elaine Huang
Service hotline: +86 20 8792 5274
Email: sales@sengkeda.com
Company Address: Building D, No. 1, Cai Pin Road, Science City, Huangpu District, Guangzhou, Guangdong Province
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