در دنیای واقعی نظارت تصویری و سیستم های تعبیه شده, الف 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.
در این مقاله, we’ll walk through a real customer inquiry, analyze the technical requirements, and explain how these features can be implemented through custom development.
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” تابع. 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?فهرست مطالب
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محصولات رمزگذار جدید
خیر. Product Name پیکربندی ویژگی های کلیدی وضعیت 1 رمزگذار ویدئویی نور مرئی UVC دو کاناله USB 2× ورودی USB پشتیبانی از کدگذاری ویدئویی با دوربین دوگانه USB, و RTSP جریان; خروجی محلی CVBS/HDMI; حالت های نمایش قابل تغییر تولید انبوه 2 رمزگذار دو کاناله (1× USB Visible Light + 1× دوربین تصویربرداری حرارتی USB) 2× ورودی USB پشتیبانی از دوربین دوگانه USB (قابل مشاهده است + حرارتی) capture, رمزگذاری, و RTSP جریان; خروجی محلی CVBS/HDMI; حالت های نمایش قابل تغییر تولید انبوه 3 ماژول نمایش HDMI/CVBS رسیور RTSP HDMI + خروجی CVBS پشتیبانی از رمزگشایی جریان RTSP تا 4×1080P@30fps; پشتیبانی از ارسال پروتکل جریان ویدئو; نمایشگر خروجی HDMI/CVBS نمونه موجود است 4 ماژول نمایش HDMI/CVBS رسیور RTSP با 4.3"/5" ال سی دی HDMI output + صفحه نمایش LCD پشتیبانی از رمزگشایی جریان RTSP تا 4×1080P@30fps; ارسال پروتکل; نمایشگر خروجی HDMI/CVBS اشکال زدایی 5 رمزگذار دو کاناله (1× USB Visible Light + 1× CVBS آنالوگ) 1× CVBS + 1× ورودی USB UVC ویدئوی دوگانه (یو اس بی + CVBS), رمزگذاری و جریان RTSP; خروجی محلی CVBS/HDMI; حالت های نمایش قابل تغییر اشکال زدایی 6 رمزگذار دو کاناله (1× USB UVC + 1× AHD آنالوگ) 1× AHD + 1× ورودی USB UVC فیلمبرداری دوگانه (یو اس بی + AHD), رمزگذاری و جریان RTSP; خروجی محلی CVBS/HDMI; حالت های نمایش قابل تغییر اشکال زدایی 7 رمزگذار دو کاناله (1× CVBS + 1× ویدئو آنالوگ AHD) CVBS + AHD 2 ورودی ویدیو فیلمبرداری دوگانه آنالوگ, رمزگذاری و جریان RTSP; خروجی محلی CVBS/HDMI; حالت های نمایش قابل تغییر اشکال زدایی 8 رمزگذار دو کاناله (1× دوربین CMOS + 1× دوربین تصویربرداری حرارتی USB) 1× رابط USB پشتیبانی از CMOS + USB thermal camera capture, رمزگذاری و جریان RTSP; خروجی محلی CVBS/HDMI; حالت های نمایش قابل تغییر تولید انبوه برای راه حل های تبدیل ورودی/خروجی ویدیویی سفارشی شده که در محصولات ما ذکر نشده است, لطفا برای پشتیبانی OEM/ODM با ما تماس بگیرید. ما می توانیم محصولات متناسب با نیاز شما را توسعه دهیم.
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, و غیره)
- Persistent state (not just a trigger pulse)
This means the GPIO must function as a latched digital output, similar to a relay.
موارد استفاده معمولی عبارتند از:
- IR illuminator control
- Alarm devices
- External lighting systems
2. UART over Network (انتقال شفاف)
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. در عوض:
- آ UART-controlled video selector determines which camera is active
- The encoder must forward remote commands to UART
This requires a network-to-UART bridge قابلیت.
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
به عبارت دیگر:
آ 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 واحدها
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:
- آ smart edge device
- آ control interface hub
- آ scalable solution for deployment
نتیجه گیری
This case highlights an important trend:
Modern video systems are no longer just about streaming — they are about کنترل کنید, integration, and intelligence.
With the right customization, الف CVBS to IP video converter can serve as:
- A video encoder
- A hardware controller
- A communication bridge
تماس با ما
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.
پرسش و پاسخ
س: I need to send binary numbers and control commands in both directions. Can your converter board support this?
آ: بله, our converter (encoder) board fully supports bidirectional communication of binary data and control commands.
چگونه کار می کند:
- The board is equipped with a standard serial interface:
TX (انتقال دهد), RX (دریافت کنید), و GND (زمین). - 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.
الزامات:
- Serial Communication Software
You will need to run a serial communication tool on your computer (به عنوان مثال, a terminal or custom software) to send and receive commands. - 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.
ویژگی های کلیدی:
- Supports فول دوبلکس (دو طرفه) ارتباط
- سازگار با binary data and command-based protocols
- Easy integration with existing serial systems
- Remote communication over standard network infrastructure
موارد استفاده معمولی:
- Remote device control
- Industrial automation systems
- Data acquisition and monitoring
- Embedded system communication
س: Why is the board receiving data but TCP communication is not working correctly?
آ: Please check your TCP Server IP setting. The browser address (به عنوان مثال, 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.
سوال بپرسید
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