Bộ chuyển đổi luồng video HDMI qua Ethernet IP có độ trễ thấp

low-latency HDMI over Ethernet IP video stream converter

Kịch bản ứng dụng

This HDMI to IP video stream converter is suitable for a wide range of industries and environments that require efficient, ổn định, và truyền video chất lượng cao. Các ứng dụng điển hình bao gồm:

• Phát sóng & Live Events
  Used for live streaming concerts, hội nghị, sự kiện thể thao, và các dịch vụ nhà thờ, delivering high-definition HDMI video over wired or wireless networks.

• Bảo vệ & Giám sát
  Integrates with IP cameras and monitoring platforms to transmit HDMI video from DVRs, NVR, or other security systems for remote surveillance and centralized control.

• Công nghiệp & UAV Video Transmission
  Enables real-time HDMI video streaming from unmanned aerial vehicles (UAV), robot, or industrial machines for remote inspection, giám sát, và kiểm soát.

• Hình ảnh y tế & Telemedicine
  Supports the transmission of high-definition medical imaging (such as ultrasound or endoscopy) to remote specialists for diagnosis, training, and consultation.

• Giáo dục & Đào tạo
  Facilitates video transmission for e-learning, distance education, and training sessions, allowing teachers or trainers to share HDMI content seamlessly with remote participants.

• Chính phủ, Quân đội & Ứng phó khẩn cấp
  Provides reliable video transmission in mission-critical environments such as command centers, hoạt động hiện trường, ứng phó thiên tai, and law enforcement.

• Công ty & Bài thuyết trình kinh doanh
  Simplifies video distribution for boardrooms, large displays, and remote meetings by streaming HDMI content directly over wired or wireless networks.

Tính năng, đặc điểm

1. Mã hóa video nâng cao
   Supports H.265 and H.264 compression standards, delivering high-definition video quality at ultra-low bitrates.

2. Flexible Video Input Resolutions
   Compatible with multiple resolutions, including 1920×1080 @ 60/50/30/25 fps and 1280×720 @ 60/30/25 khung hình/giây, ensuring wide adaptability for different video sources.

3. Automatic HDMI Source Detection
   Automatically recognizes and switches between HDMI video sources for seamless operation.

4. Two-Way Audio Intercom
   Built-in support for bi-directional voice communication, enabling interactive monitoring and remote coordination.

5. Multiple Protocols Supported
   Fully compatible with RTSP, ONVIF, GB28181, MQTT, WebRTC, and other streaming and IoT protocols for easy integration.

6. Giám sát từ xa & Hỗ trợ SDK
   Provides real-time remote viewing via mobile phones and PCs, with an open SDK for secondary development and customization.

7. Flexible Power Options
   Supports DC 6–12V input and Power-over-Ethernet (PoE) for simplified deployment.

8. Wired & Wireless Networking
   Comes with Ethernet connectivity by default, expandable to Wi-Fi, 4G, or 5G networks depending on application needs.

9. Local Storage Capability
   Supports TF card recording up to 512GB for local video storage and backup.

10. Default IP and RTSP address
    địa chỉ IP:192.168.1.182 RTSP address: rtsp://192.168.1.188:554/0

Thông số kỹ thuật

• Bộ xử lý chính
  SSC338Q with 0.5T computing power

• Video Conversion Chip
  Dedicated HDMI HD video conversion chip

• Xử lý video

  • Supports H.264 / Mã hóa H.265

  • Bitrate adjustable: 0.1 Mb/giây – 8 Mb/giây

  • Frame rate adjustable: 1 – 60 khung hình/giây

• Đầu ra video

  • Luồng chính: 1920×1080@60fps, 1280×720@60fps, 1280×1024@30fps

  • Luồng phụ: D1, VGA, 640×360

• Audio Processing

  • G.711 / AAC encoding

  • Supports two-way audio intercom

• Image Capture

  • Supports continuous, scheduled, and event-triggered snapshots

• Business Functions

  • Lớp phủ OSD

  • Motion detection

  • Human shape detection

  • Customizable intelligent algorithms

• Giao diện

  • Nút đặt lại: 1 × hardware reset interface

  • Cổng USB: 1 × USB, supports Wi-Fi / 4G / 5mô-đun G, customizable UVC function

  • Cổng mạng: 1 × RJ45 (10/100M thích ứng), with surge and ESD protection

  • Audio Port: 1 × 4-pole headphone jack, supports headphone output and microphone input

  • Cổng nối tiếp: 2 × TTL, support Beidou / GPS positioning and transparent data transmission for IoT integration

  • Khe Cắm Thẻ TF: 1 × TF card, up to 256GB

• Giao thức mạng
  TCP/IP, IPv4, RTSP, HTTP, DHCP, NTP, RTMP, MQTT, WebRTC

• Giám sát từ xa

  • Supports mobile phone and PC remote monitoring

  • Open SDK for P2P / WebRTC integration with multiple platforms

• Nguồn điện
  DC 5.5V – 24V input or PoE power supply

• Môi trường hoạt động

  • Nhiệt độ: -20oC ~ +80oC

• Kích thước vật lý
  80 × 50 × 12 mm (customized board shapes available)

Tùy chọn tùy chỉnh

• Mã hóa video & Processing

  • Choice of H.264 / H.265 codec optimization

  • Tốc độ bit có thể điều chỉnh, tốc độ khung hình, and resolution profiles

  • Custom intelligent video analytics (motion detection, human detection, AI algorithms)

• Video Input & đầu ra

  • Resolution and frame rate configurations (Main/Sub stream)

  • Flexible stream formats to match specific application needs

• Audio Features

  • Codec selection (G.711 / AAC)

  • Two-way intercom customization and noise reduction algorithms

• Mạng & Giao thức

  • Support for additional streaming protocols beyond RTSP, RTMP, ONVIF, GB28181, MQTT, WebRTC

  • Private/custom protocol integration for specific platforms

• Giao diện phần cứng

  • USB interface functions (Wi-Fi, 4G, 5G module integration, UVC customization)

  • Serial port expansion and IoT data integration (GPS, Beidou, dữ liệu cảm biến)

  • Network port protection and interface type (RJ45 / industrial connectors)

• Nguồn điện

  • Wide voltage input range adjustment

  • PoE customization (standard or non-standard)

• Tùy chọn lưu trữ

  • TF card maximum capacity expansion (beyond 256G, up to 512G if required)

  • Recording formats and storage management functions

• Cơ khí & Yếu tố hình thức

  • Board size and structure customization (80×50×12mm standard, or tailored PCB/metal housing design)

  • Heat dissipation and ruggedized design for industrial or UAV applications

• Phần mềm & SDK

  • Secondary development SDK customization (API, P2P, WebRTC integration)

  • Cloud platform docking and mobile app integration

• Truyền dẫn không dây

  • Expansion to Wi-Fi, 4G, or 5G modules depending on customer needs

  • Antenna options and frequency band customization

How to test the latency

To evaluate the transmission latency of the HDMI to IP video stream converter, the following test setup and method were used:

1. Thiết lập thử nghiệm

   • Video Source: A computer running a stopwatch application with millisecond precision.

   • Trưng bày 1 (Thẩm quyền giải quyết): The computer monitor directly showing the stopwatch (real-time source).

   • Trưng bày 2 (Bài kiểm tra): A video player connected via wired Ethernet, receiving the HDMI-to-IP video stream output from the converter.

2. Testing Method

   • Play the stopwatch on the computer (source).

   • Observe both Display 1 (direct HDMI output) and Display 2 (network video stream playback) đồng thời.

   • Pause the video at any frame where both stopwatch displays are visible.

   • Record the time shown on Display 1 (source) and Display 2 (network playback).

   • Subtract the two values to obtain the end-to-end latency of the HDMI to IP video stream.

3. Result Interpretation

   • The difference in milliseconds represents the actual transmission latency.

   • Multiple measurements at different time points should be taken and averaged for higher accuracy.

   • This test method is suitable for evaluating real-time streaming performance in applications such as UAV transmission, phát sóng trực tiếp, giám sát từ xa, and interactive video systems.

How to test the latency

The following video demonstrates a latency test for converting HDMI video to a network stream. A millisecond-level stopwatch is shown on one computer, whose HDMI output is connected to the converter board. The board encodes the video and transmits it over the network to a second computer. Using an RTSP player, the video stream—including the stopwatch—can be viewed in real time. Playback can be paused at any moment to compare the timestamps on both screens; the difference between them reflects the latency introduced by the HDMI-to-network encoder.

FPV Weak CVBS to Ethernet

CVBS sang IP Ethernet

HDMI + CVBS sang IP Ethernet

SDI + AHD / CVBS sang IP Ethernet

Camera USB UVC tới IP Ethernet

Camera USB UVC tới CVBS PAL NTSC

HDMI sang IP Ethernet

4K HDMI sang IP Ethernet

Analog AV sang IP Ethernet

IP Ethernet sang HDMI CVBS

IP Ethernet sang HDMI CVBS

IP Ethernet sang HDMI

IP Ethernet sang HDMI