CVBS to IP Video Converter Remote Control Guide Tips

In real-world video surveillance and embedded systems, a CVBS to IP video converter is often more than just an encoder. Many projects require it to act as a control hub, integrating external hardware such as IR illuminators, relays, and UART-controlled devices.

UART Serial port set and transfer data between the CVBS to IP encoder board and PC
UART Serial port settings transfer data between the CVBS-to-IP encoder board and PC

У цій статті, we’ll walk through a real customer inquiry, analyze the technical requirements, and explain how these features can be implemented through custom development.

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Customer Inquiry (Original Message)

A customer using our CVBS encoder board raised the following questions:

1. Alarm/control output via GPIO:
I would like to use the alarm output (GPIO) to control an external flashlight/IR illuminator. I need to be able to turn it on by sending a command (via any supported interface — HTTP API, MQTT, or other), and have it remain on until I send another command to turn it off. Is this feature supported? Is there any documentation or API reference for remote control of the alarm output?

2. UART-controlled video selector:
I can see that the web interface has a “UART Settings” section with a “UART Test” функція. I am planning to connect a UART-controlled video selector to the board. All cameras connected to the selector output video in the same format (CVBS), so the board itself will not need to handle any format switching — UART commands will only change the active input on the selector.
Is it possible to remotely send UART commands to the selector (via HTTP API, MQTT, or any other supported method)? Is there any documentation for this use case?

Encoder Modules Boards

Плати модулів декодера

Available for Customization

New Encoder Products

Немає. Product Name Configuration Key Features Статус
1 Двоканальний USB UVC кодер відео у видимому світлі 2× USB-вхід Підтримує подвійне кодування відео з камери USB, and RTSP streaming; локальний вихід CVBS/HDMI; перемикання режимів відображення Mass Production
2 Dual-Channel Encoder (1× USB Visible Light + 1× USB-тепловізійна камера) 2× USB-вхід Supports dual USB camera (видно + теплові) захоплення, encoding, and RTSP streaming; локальний вихід CVBS/HDMI; перемикання режимів відображення Mass Production
3 Декодер RTSP, модуль дисплея HDMI/CVBS HDMI + Вихід CVBS Supports up to 4×1080P@30fps RTSP stream decoding; Підтримка переадресації потокового відео; Вихідний дисплей HDMI/CVBS Sample Available
4 RTSP декодер HDMI/CVBS дисплейний модуль з 4.3"/5" ЖК HDMI output + РК-екран Supports up to 4×1080P@30fps RTSP stream decoding; protocol forwarding; Вихідний дисплей HDMI/CVBS Debugging
5 Dual-Channel Encoder (1× USB Visible Light + 1× CVBS Analog) 1× CVBS + 1× USB UVC input Dual video (USB + CVBS), кодування та потокове передавання RTSP; локальний вихід CVBS/HDMI; перемикання режимів відображення Debugging
6 Dual-Channel Encoder (1× USB UVC + 1× Аналог AHD) 1× AHD + 1× USB UVC input Dual video capture (USB + AHD), кодування та потокове передавання RTSP; локальний вихід CVBS/HDMI; перемикання режимів відображення Debugging
7 Dual-Channel Encoder (1× CVBS + 1× AHD Analog Video) CVBS + AHD 2 video input Подвійний аналоговий запис відео, кодування та потокове передавання RTSP; локальний вихід CVBS/HDMI; перемикання режимів відображення Debugging
8 Dual-Channel Encoder (1× CMOS Camera + 1× USB-тепловізійна камера) 1× USB interface Supports CMOS + USB thermal camera capture, кодування та потокове передавання RTSP; локальний вихід CVBS/HDMI; перемикання режимів відображення Mass Production

Для індивідуальних рішень для перетворення вхідного/вихідного відеосигналу, яких немає в списку наших продуктів, будь ласка, зв'яжіться з нами для підтримки OEM/ODM. We can develop tailored products based on your requirements.

Technical Requirement Analysis

This request goes beyond basic video encoding. The customer is essentially trying to build a network-controlled embedded system with the following capabilities:

1. Remote GPIO Control (Digital Output)

The customer wants:

  • Remote ON/OFF control of a GPIO pin
  • Control via network interfaces (HTTP, MQTT, тощо)
  • Persistent state (not just a trigger pulse)

This means the GPIO must function as a latched digital output, similar to a relay.

Типові випадки використання включають:

  • IR illuminator control
  • Alarm devices
  • External lighting systems

2. UART over Network (Прозора передача)

The second requirement is more advanced.

System architecture:

Multiple Cameras → Video Selector (UART controlled) → CVBS → Encoder → IP Stream

The encoder does not switch video inputs itself. Instead:

  • A UART-controlled video selector determines which camera is active
  • The encoder must forward remote commands to UART

This requires a network-to-UART bridge здатність.

3. API and Integration Expectations

The customer clearly expects:

  • HTTP API or MQTT interface
  • Command-based control
  • Documentation for integration

This indicates the customer is likely:

  • A system integrator
  • Developing a scalable or commercial solution

What the Customer Really Needs

Summarizing the request:

  • GPIO as a remotely controlled switch
  • UART as a remote command channel
  • The encoder acting as a control gateway, not just a video device

Іншими словами:

A CVBS to IP video converter with remote control capabilities

Our Solution

We confirmed with our engineering team that:

✔ GPIO Remote Control

  • Supported via custom firmware
  • ON/OFF state can be maintained
  • Can be controlled via network commands

✔ UART Remote Command Transmission

  • Supported via custom firmware
  • Remote commands can be sent to UART devices
  • Suitable for controlling video selectors or other peripherals

Implementation Approach

To enable these features, we provide custom firmware development, which includes:

  • GPIO control API
  • UART data transmission interface
  • Protocol definition (HTTP or other)
  • Integration documentation

Commercial Terms

Because these features are project-specific, a one-time development effort is required.

  • Development Cost: USD X,000
  • Refund Policy: Fully refundable when total order reaches 1,000 одиниць

This model ensures:

  • Fast customization for your project
  • Cost efficiency for large-scale deployment

Why Custom Development Matters

Off-the-shelf products often cannot meet advanced integration needs such as:

  • Hardware control logic
  • Protocol bridging
  • System-level automation

Custom firmware allows your encoder to become:

  • A smart edge device
  • A control interface hub
  • A scalable solution for deployment

Висновок

This case highlights an important trend:

Modern video systems are no longer just about streaming — they are about КОНТРОЛЬ, інтеграція, and intelligence.

With the right customization, a CVBS to IP video converter can serve as:

  • A video encoder
  • A hardware controller
  • A communication bridge

Зв'яжіться з нами

If you have similar requirements for GPIO control, UART integration, or remote device management, feel free to reach out.

We are happy to support your project from concept to mass production.

часто задаються

Q: I need to send binary numbers and control commands in both directions. Can your converter board support this?

A: Так, our converter (кодувальник) board fully supports bidirectional communication of binary data and control commands.

Як це працює:

  • The board is equipped with a standard serial interface:
    TX (Передавати), RX (Отримати), and GND (Земля).
  • It can be connected to a remote computer via an Ethernet cable (LAN).
  • Through this connection, the system enables two-way transmission of serial data, including binary values and control commands.

Вимоги:

  1. Serial Communication Software
    You will need to run a serial communication tool on your computer (напр., a terminal or custom software) to send and receive commands.
  2. IP Address Configuration
    • The converter board and the computer must be configured with each other’s IP addresses.
    • Proper network setup ensures reliable communication between both devices.

Key Features:

  • Підтримує повнодуплексний (двонаправлений) спілкування
  • Сумісний з binary data and command-based protocols
  • Easy integration with existing serial systems
  • Remote communication over standard network infrastructure

Типові випадки використання:

  • Remote device control
  • Системи промислової автоматизації
  • Data acquisition and monitoring
  • Embedded system communication

Q: Why is the board receiving data but TCP communication is not working correctly?

A: Please check your TCP Server IP setting. The browser address (наприклад, 192.168.1.188) is the encoder board’s IP address, but the TCP Server IP should be your computer’s IP address instead. Using the same IP for both may cause communication failure or IP conflicts.

how to set the TCP server ip on the cvbs to ip video encoder boards uarts TX RX data transmission
how to set the TCP server ip on the cvbs to ip video encoder boards uarts TX RX data transmission

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