COFDMビデオトランスミッター

COFDM

Three in one image data control

までサポート 6 ノード

100KM ultra long distance wireless transmission

4K high-definition image with low latency

H265/H264 video compression

Rich interfaces

Adaptive retransmission

周波数ホッピング

Adjustable time slot allocation

Unidirectional image transmission channel; Bidirectional data transmission channel; Unidirectional remote control channel

One to many, many to one or two application modes

100KM ultra long distance wireless transmission, excellent non line of sight anti-interference performance.

The ultra-high bandwidth and stream support can easily handle 4K resolution video data streams. The 200ms screen to screen low latency and delay jitter sensitivity control is good, meeting the real-time requirements of video data end-to-end

H265/H264 video compression. AES encryption.

The implementation of an adaptive retransmission mechanism at the bottom layer not only greatly outperforms the retransmission mechanism at the application layer in terms of efficiency and latency, but also greatly improves the performance and user experience of the link in interference environments.

The module continuously detects the interference status of all available channels in real-time, and automatically selects and switches to the channel with the lowest interference in the current working channel, ensuring continuous and reliable communication.

The point-to-point system has a flexible and adjustable time slot allocation mechanism, and the time slot positions of each terminal are flexible and adjustable. According to the terminal data flow, the number of time slots allocated to each terminal can be equal or unequal, thus achieving the optimal overall system efficiency.

伝送距離

7KM-100KM (depending on the number of nodes)

ソフトウェア無線 (SDR)

The modifiability of communication underlying protocols endows the system with the ability to continuously evolve and optimize;

Improve sufficient and effective verification for chip based technology, greatly reducing the risk of chip casting;

Flexible customization to enhance design win capabilities

Orthogonal Frequency Division Multiplexing (OFDM)

Effectively eliminating multipath interference in long-distance transmission

Low Density Parity Check Code (LDPC)

The independently optimized QC-LDPC design endows the system with excellent error correction performance, greatly improving reception performance.

Private communication protocol

Optimized design for video transmission, optimized frame format and pilot greatly improve the reception performance of video transmission.

製品パラメータ

Parameter	value
使用周波数帯域	1.4GHz/2.4GHz
帯域幅	10メガヘルツ (2 ノード), 20メガヘルツ (6 ノード)
最大放出エネルギー	27dBm/30dBm
変調	OFDM
planisphere	BPSK、QPSK、16QAM
Forward error correction code	LDPC（1/2、2/3、3/4、5/6）
Duplex mode	TDD
Throughput rate	19Mbpsの (max）
ビデオインターフェース	Network interface
Other interfaces	シリアルポート, USB
暗号化	AES128/256
Ground end size	77.8X47.3X23.5mm
Sky end size	77.8X47.3X23.5mm
重さ	97グラム (sky end)
working voltage	6V ~ 16V
動作温度	-20℃～55℃
Network topology	star
node	1 Master node; 最大 6 slave nodes (20MHz帯域幅); 2 slave nodes (10MHz帯域幅)