COFDM беспроводной 4K HDMI передатчик-модулятор видеокодера

COFDM беспроводной 4K HDMI передатчик-модулятор видеокодера

Обзор

The VCAN1776-TX-4KHDMI module is a versatile, low-latency HDMI video transmitter that supports up to 4K (3840×2160 @30 кадров в секунду) HDMI-вход. Using advanced H.265/H.264 encoding with COFDM modulation technology, it ensures high-quality video and audio transmission in high-speed motion and non-line-of-sight (NLOS) окружающая среда.

Ключевая особенность

• High-Quality Video Transmission: Supports HDMI input with a maximum resolution of 4K (3840*2160@30 кадров в секунду), using H.265/H.264 encoding for efficient, передача видео с малой задержкой.

• Dual Video Input: Capable of transmitting both HDMI and IP camera inputs simultaneously via COFDM modulation, providing flexible video source options.

• Audio Support: Accepts analog audio or HDMI audio input for seamless integration with your video transmission needs.

• Прозрачная передача данных: Supports one-way transparent data transmission via UART, ideal for unidirectional data communication.

• Web-Based Configuration: Features a Web UI for easy configuration management, allowing users to adjust working parameters such as frequency, пропускная способность, битрейт, and RF power via UART control.

• UART Control Interface: Features a UART control interface for manual operation or integration with other systems for advanced control.

Modular Design

The module consists of two interconnected boards (video codec board and COFDM modulation board) connected via a flat cable, providing a compact, customizable solution for a variety of applications.

Flexible Operation

The VCAN1776-TX-4KHDMI module offers various operation modes based on firmware specifications and can be customized to suit specific needs, whether for standard or low-latency operation.

Default Features

• H.265 video compression and COFDM modulation for enhanced transmission.

• Supports video input from HDMI and IP cameras via the Ethernet port.

• Adjustable parameters such as frequency, пропускная способность, скорость передачи данных, and RF power.

Latency and Performance

• Typical latency between video input and HDMI output on the receiver is 200ms to 250ms under standard settings.

• For ultra-low-latency needs, the module can be paired with specific receivers and firmware to reduce latency to 50ms–130ms.

Optional Firmware Configurations

• Standard H.264 video compression (paired with Vcan1776-RX receiver module).

• Proprietary H.264 with P-frames for lowest latency (with specialized firmware).

 

Спецификация

ИО

HD-видеовход	HDMI, HDMI type A Connector
Ethernet1 port	4PIN-разъем PH1,25 мм, can’t work when connecting with the COFDM modulator module
Ethernet2 port	4PIN-разъем PH1,25 мм, support IP camera input and web UI management, fixed IP address as 192.168.0.215
Данные TTL UART	3PIN-разъем PH1,25 мм
ТТЛ UART-управление	4PIN-разъем PH1,25 мм
Power in	2PIN-разъем PH2,0 мм
USB-порт	4PIN-разъем PH1,25 мм, only for firmware updating
HDMI-выход	HDMI type A Connector, can’t work when connecting the COFDM modulator module
РЧ-выход	ИПЕКС

модуляция

Форматы модуляции	COFDM(DVB-T)
Перевозчики	2К
Пропускная способность	Настраивается от 1 МГц до 8 МГц, шаг на 1 кГц
FEC	1/2, 2/3, 3/4, 5/6, 7/8
Guard interval	1/32, 1/16, 1/8, 1/4
Созвездие	КФСК, 16QAM, 64QAM
Битрейт	0.5Мбит/с до 31,67 Мбит/с

РФ

Диапазоны частот	200МГц~2300 МГц(другие диапазоны могут поддерживаться специальным производством)
Размер шага настройки	1КГц
Выходная мощность	Configurable from -93dBm to -5dBm(в зависимости от частоты)

Видео и аудио

Видеовход	HDMI or IP camera, auto-detected HDMI input after system start-up, it need to set up via web UI for IP camera input
Видео форматы	HDMI-вход: 3840*2160@30, 1080@60P, 1080@50р., 1080@30P, 1080@25P, 1080@24P, 1080@60I, 1080@ 50I, 1080@30I, 720@60P, 720@50р., 720@30P, ……
Видеокодирование	H.265/H.264
Аудиовход	Embedded HDMI or Analog audio(Specify Mic in/Line in)
Аудиокодирование	ААС, 16кусочек, стерео, 32Кбит/с
Шифрование	AES256

Мониторинг и контроль

Comprehensive setup with our Parameter Configure Panel or other device via control UART.

Диапазон температур

Полная спецификация: 0° до +70°C Окружающая среда (Необязательный: -40° до +85°С )

Хранилище: от –40° до +85°С

Dimensions and weight

80x50x15mm(не включая разъемы вне платы), 41грамм.

Требования к питанию

Диапазон ввода: 7~30 В постоянного тока

Потребляемая мощность: <400мА при 12 В

Signals description

Encoder board I/O port

Power-in and 5V-out

The power input interface is a 2PIN PH2.0mm connector. The module also provides a 5V power output (two solder holes) for fan that it may be required when the module is integrated with a power amplifier.

HDMI-out

HDMI-out is for video output when this 4K HDMI encoder module works independently as a video decoder. The HDMI-out port doesn’t work when the 4K HDMI encoder module is connected with the COFDM modulator module.

Ethernet1

When 4K HDMI encoder module works independently as a video encoder or decoder, Ethernet1 is valid. When 4K HDMI encoder module connects with the COFDM modulator module, Ethernet1 can’t work because the Ethernet port signals in Ethernet1 and FPC-main are multiplexed.

Ethernet2

The IP address of Ethernet2 is fixed as 192.168.0.215 in firmware, so it can’t be changed. It has a built-in web server in the system, and customers can manage parts of the parameters via the web UI (URL address: http://192.168.0.215/). Ethernet2 supports connecting IP cameras. The system has a built-in RTSP client to get the RTSP video stream from IP cameras. It needs to set the RTSP video stream URL address of the IP camera to the system via the web UI first.

Ethernet2 is a 4PIN 1.25mm pitch connector, it can be installed according to the customer’s installation needs, either using the vertical insertion connector as shown in the above image, or using the 90-degree bent insertion connector as shown in the image below, with the interface extending out of the right side plate edge.

Analog audio-in/out

When the 4K HDM encoder board is used together with the COFDM modulator module as a COFDM transmitting module, the Audio-out signal pin is invalid. Only the audio-in and GND signal pins are required as analog audio input signal pins.

Данные UART

The module supports one channel of UART data packed with the video stream and transmitted. When the VCAN1776-TX-4KHDMI module works paired with a Vcan1776-RX receiver, this UART data will be transferred to the data UART of our COFDM receiver module.

Управление УАРТ

4PIN-разъем PH1,25 мм, ТТЛ 3,3 В. The 4K HDMI Encoder board system can be setup via this control UART with AT commands. Our Parameter Configure Panel can be connected to this control UART directly.

LEDs and GPIO

There are three signal indicator lights (LED1/LED2/LED3) on the right side of the 4K HDMI encoder module board, and the indicator light signals are simultaneously connected to the J6011 connector pins (4PIN 1.25mm connector). Some customers may need to assemble indicator LEDs on their housing case, so they can use J6011 connector pins to add indicator LEDs on their housing case.

When the 4K HDMI encoder module works with a COFDM modulator module, the corresponding signals of the indicator lights are as follows:

светодиоды	Описание	Corresponding J6011 PIN
светодиод1	Индикатор питания: red color, constant light when the board is normal powered.	LED1-PIN
светодиод2	Green color, constant light when the input video is detected successfully, otherwise it will not light.	LED2-PIN
светодиод3	Кодирование-светодиод: green color, blinks when video encoding normally.	LED3-PIN

Настраиваемые параметры

1. Параметры видеовхода: Customers can choose between different video input formats, например, HDMI, SDI, and IP camera inputs, depending on the application and hardware compatibility.

2. Мощность передачи & Диапазон: You can adjust the transmission power to suit various operational ranges, allowing for longer or shorter communication distances depending on the specific needs of the project or environment.

3. Диапазоны частот: Custom frequency bands can be selected for better adaptability to specific regions or to comply with local regulatory requirements.

4. Video Encoding Formats: The encoder can support different video encoding formats such as H.264, H.265, и другие, enabling users to prioritize video quality, compression, or latency.

5. Audio Input Options: Audio input can be configured to support analog or HDMI audio, catering to different sound sources.

6. Data Transmission Channels: There are options for configuring additional data channels, allowing users to transmit auxiliary data, телеметрия, or control signals alongside the video stream.

7. Web UI Customization: The system can be configured for a customized Web User Interface (пользовательский интерфейс), where users can easily monitor and manage the device settings remotely.

8. Шифрование и безопасность: For secure transmission, the product can be customized with encryption features that ensure the video and data are transmitted safely.

Приложение

1. Передача видео с дрона:

   • This product is ideal for transmitting live 4K HD video from drones to ground stations in real-time. It can be used for aerial surveillance, inspections, и мониторинг приложений, where high-definition, low-latency video is essential.

2. Search and Rescue Missions:

   • In search and rescue operations, drones equipped with this encoder can send live footage to the ground team, improving situational awareness and helping rescuers make quick decisions in critical environments.

3. Military Reconnaissance:

   • The COFDM technology ensures stable video transmission even in complex and obstructed environments (like forests, городские районы, or mountainous regions). This is crucial for military reconnaissance missions that require uninterrupted video feeds from UAVs.

4. Общественная безопасность и безопасность:

   • Law enforcement and emergency response teams can use drones equipped with this encoder to monitor crowds, track suspects, or assess disaster zones. The high-definition video feed aids in making better-informed decisions in real-time.

5. Сельскохозяйственные дроны:

   • Drones used in agriculture for crop monitoring or surveying can benefit from high-definition, передача видео в реальном времени, allowing farmers to assess crop health or perform aerial mapping with detailed imagery.

6. Broadcasting and Film Production:

   • In the entertainment industry, drones equipped with this video encoder can transmit high-quality footage for live events or film production. This can be especially useful for capturing hard-to-reach aerial shots in high definition.

7. Inspection of Infrastructure:

   • Drones used for inspecting critical infrastructure like power lines, трубопроводы, or buildings can send live video feeds back to the control center, allowing operators to identify any issues or damages quickly and accurately.

8. Промышленный мониторинг:

   • The encoder can also be used in industrial sectors to monitor remote areas, строительные площадки, or dangerous environments, offering a clear and reliable video feed to ensure safety and operational efficiency.

В индустрии дронов, тот COFDM Wireless 4K HDMI Video Encoder Modulator Transmitter is highly beneficial for applications requiring long-range, high-definition video transmission with minimal latency.

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