COFDM IP wireless data transmitter module
COFDM IP wireless video data transmitter module One-way Ethernet transparent transmission network port Vcan1816
Daftar isi
pengantar
- This ethernet COFDM module supports transmitting the data from the ethernet port to TX RF out.
- Common cofdm transmitters are video signal inputs such as HDMI, CVBS, SDI, or AHD. This one is a transparent transmission module that can support IP cameras and support video and data through cofdm.
- Paired with this COFDM network video data transmitter is a COFDM receiving module, which can realize HDMI and CVBS output, and can also output video to a computer, RTSP, or UDP player through an IP network port RJ45.
- The key role is to use UDP broadcast/multicast to send data.
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COFDM modulation with low latency;
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Stable signal transfer in NLOS and high-speed moving;
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Adjustable working frequency 170-4000Mhz, lebar pita, daya transmisi, dll;
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Ethernet connection for IP data UDP broadcast transmission
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Maximum 31.67Mbps wireless transmitting bitrates
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Embedded RTSP video client to get video from IP camera via Ethernet connection
- COFDM wireless transmission module + receive the module, forming a one-way wireless transmission network port transmission link
- The transmitting module receives data through the network port and transmits the data received by the network port in the form of COFDM
- After receiving the data, the receiver receives the demodulation and then outputs it through the network port
Unidirectional COFDM network port wireless transmission module function:
Fitur
- The host computer data is received through the network port, and then the network port data is transmitted.
- masukan data: Pelabuhan jaringan, support protocol UDP broadcast/multicast. Antarmuka fisik: RJ45 seat or 4PIN 1.25mm pitch seat
- CFG-UART: COFDM modulation parameter configuration serial port, 4PIN 1.25mm pitch seat, can be docked to our parameter configuration panel. Users can set the center operating frequency point, bandwidth nirkabel, and other modulation parameters (such as protection interval, convolution bitrate, mode konstelasi, transmission gain, dll.) through the reference serial port.
- COFDM Transmitter Interface (Terima kasih): MMCX perempuan.
- TF card interface, peningkatan perangkat lunak, dan pemeliharaan.
- Power input interface (Kekuasaan): 2PIN 2.0mm pitch Phoenix terminal. Tegangan suplai: 7V~24V.
- Link LED indicator: The light of the work is emitted, and the data is flashed when the data is transmitted usually.
- Power LED indicator: The power input indicator, the normal power supply is always on.
- Transmitter module size: 73x51mm (excluding the size of interface devices and connectors protruding from the board edge), thickness less than 15mm.
- Supported COFDM modulation parameters:
- Configurable convolutional encoding ratios: 1/2, 2/3, 3/4, 5/6, 7/8
- Configurable constellation: QPSK/QAM16/QAM64
- IFFT mode: 2K
- Configurable protection intervals: 1/4, 1/8, 1/16, 1/32
- Bandwidth nirkabel: 1 ~ 8MHz MHz adjustable, 1langkah KHz
- Configurable RF output power: -94dbm ~ -5dbm (different operating frequency points, the maximum transmit power is different).
- Center operating frequency point: between 200MHz ~ and 2300MHz can be configured arbitrarily
Spesifikasi
IO
| keluaran RF | MMCX perempuan |
| TTL 3.3V control uart | 4Konektor PIN PH1.25mm |
| Daya masuk | 2Konektor feniks PIN PH2.54mm |
| Pelabuhan Ethernet | 4Konektor PIN PH1.25mm |
| kartu TF | Untuk pembaruan firmware |
| Kekuasaan dipimpin | Red constant light when the device is normally powered |
| Tautan dipimpin | Green blinks on transmitting |
Modulasi
| Format Modulasi | COFDM(DVB-T) |
| Operator | 2K |
| Bandwidth | Dapat dikonfigurasi dari 1MHz hingga 8MHz, selangkah demi selangkah 1KHz |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
| Interval penjaga | 1/32, 1/16, 1/8, 1/4 |
| Konstelasi | QPSK, 16QAM, 64QAM |
RF Ditransmisikan
| Pita Frekuensi | 70MHz~4GHz |
| Ukuran Langkah Penyetelan | 1KHz |
| Kekuatan transmisi | Dapat dikonfigurasi, maksimum -5dBm(tunduk pada frekuensi) |
Pemantauan dan pengendalian
Pengaturan komprehensif dengan Panel Konfigurasi kami atau perangkat lain melalui kontrol uart.
Kisaran suhu
Spesifikasi lengkap: -40° hingga +70°C Lingkungan
Penyimpanan: –40° hingga +85°C
Ukuran
73x51x11mm (tidak termasuk konektor keluar dari papan)
Persyaratan daya
Rentang masukan: 7~24VDC
Konsumsi daya: <250mA@12V
I/O Signal
RJ45 ethernet COFDM Transmitter for the IP camera video Transmission
This ethernet IP input COFDM Video transmitter module can receive video from an IP camera via an Ethernet connection with a built-in RTSP client and transmit it. On the COFDM receiving side, our COFDM module has a built-in RTSP Server that allows video streaming over Ethernet for remote software or hardware decoders.
How to use it as the COFDM Relay repeater module?
This module already has a TX transmission function. If you add a dual-antenna receiving module and combine them, you can form a COFDM relay/repeater module. Tentu saja, you need to add a bandpass filter to filter out clutter interference and increase PA to transmit a longer range. If you need customization, silakan hubungi kami.
Demodulasi dan Modulasi
| Format Modulasi | COFDM(DVB-T) |
| Operator | 2K |
| Bandwidth | Dapat dikonfigurasi dari 1MHz hingga 8MHz, selangkah demi selangkah 1KHz |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
| Interval penjaga | 1/32, 1/16, 1/8, 1/4 |
| Konstelasi | QPSK, 16QAM, 64QAM |
RF Diterima
| Pita Frekuensi | 160MHz~860MHz |
| Ukuran Langkah Penyetelan | 1KHz |
| Kepekaan | -97±1dBm(BB = 8MHz, QPSK, CR=2/3, GI=1/16) for one channel and add 3dBm for two-channel |
RF Ditransmisikan
| Pita Frekuensi | 70MHz~4GHz |
| Ukuran Langkah Penyetelan | 1KHz |
| Kekuatan transmisi | Dapat dikonfigurasi, maksimum -5dBm(tunduk pada frekuensi) |
COFDM wireless transmission system transmission rate calculation
Kecepatan transmisi nirkabel (air interface rate):
Kecepatan(MBps) = (Lebar Band(MHz) * 8.0/7.0) / (1+GI) * 1512/2048*log2(titik konstelasi) * kode_rate * 188/204.
Take the 8MHz bandwidth as an example of different protection intervals, convolutional bitrates, data rates corresponding to constellations, and the required received signal-to-noise ratio:
UART AT Command
ATDR、ATSD、ATSG、ATSM、ATG、ATSR、ATGR、ATGB is useful
For the UART AT command operation and format, silakan periksa tautan di bawah ini.
Petunjuk Konfigurasi Parameter Modul Decoder Decoder Modulator Encoder Petunjuk Konfigurasi COFDM AT
Receiver Module
Suggestions
- This is a one-way unidirectional transmission system. if you need a two-way bidirectional transmission system, silakan periksa tautan ini. https://ivcan.com/t/two-ways/ or https://ivcan.com/ru/p/mini-cofdm-wireless-ethernet-transmission-module-rj45/
- This is only a data transmission system, if you need video+data transmission, please look details of these modules, https://ivcan.com/p/modulator-demodulator-module-encoder-decoder-hdmi-cvbs/
- If you need a relay (pengulang) to support a longer transmission range (jarak), please choose stronger PA (Penguat Daya) di dalam, sebagai contoh, change 1Watts PA to 2.5 Watt atau 5 Watt.
–160MHz~860MHz HD video COFDM receiver module with HDMI/AV/Ethernet/USB output
The COFDM receiver module is a compact digital diversity receiver with integrated H.264 decoding, cocok untuk digunakan dalam aplikasi cairan dan mobilitas tinggi. The receiver module accepts signals from two antennas to significantly enhance the demodulated performance and increase the operating range. The receiver module can find and lock automatically to the incoming transmission quickly according to the pre-set frequency and bandwidth. This receiver module features a range of comprehensive signal outputs including HD at 720p and 1080P, video monitor HD CVBS yang dikonversi ke bawah, dan dua audio analog didukung.
The receiver module also includes DVR record functionality with a Micro SD card or USB disk. Selain itu, the receiver module has a built-in RTSP server that enables video streaming over Ethernet for remote software or hardware decoders. And the receiver module also enables video streaming over USB for remote Android device decoders like smartphones or Android PAD. This allows multiple remote viewers to monitor the same video simultaneously. The receiver module also supports display characters string on the video display screen with the video together in OSD mode.
When paired with the Our COFDM transmitter module, the receiver module offers a comprehensive, solusi video dan audio yang dapat diterapkan dengan cepat yang memungkinkan kesadaran situasional tingkat lanjut. Teknologi ini dapat memainkan peran penting dalam menghadirkan video langsung secara real-time baik dari platform seluler darat maupun udara.
- COFDM demodulation and H.264 video decoder;
- Resolusi HD penuh, 1080P@60fps;
- Keamanan luar biasa dengan dekripsi AES;
- DVR record with Micro SD card or USB disk;
- Built-in RTSP server enables video streaming over Ethernet;
- Enables video streaming over a USB host for the remote device;
- Supports display characters string on the video display screen in OSD mode;
- Stable signal transfer in NLOS and high-speed moving;
- Frekuensi kerja yang dapat disesuaikan, dan bandwidth.
Spesifikasi:
IO
| Keluaran video HD | Konektor HDMI tipe A |
| Keluaran video komposit | 6Konektor PIN PH2.0mm |
| Keluaran audio | Embedded HDMI and CVBS |
| masukan RF | Two SMA female 50Ω |
| Daya masuk | 2Konektor PIN PH2.54mm |
| Tuan Rumah USB | 4Konektor PIN PH2.0mm |
| Data TTL UART | 3Konektor PIN PH1.25mm, 3.3V signal |
| Kontrol TTL UART | 4Konektor PIN PH1.25mm, 3.3V signal |
| Ethernet | 6Konektor PIN PH2.0mm |
| Kartu TF | Slot Kartu TF |
| Kunci&LED | 2*5Konektor PIN PH2.0mm |
Demodulasi
| Format Demodulasi | COFDM(DVB-T) |
| Operator | 2K |
| Bandwidth | Dapat dikonfigurasi dari 1MHz hingga 8MHz, selangkah demi selangkah 1KHz |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
| Interval penjaga | 1/32, 1/16, 1/8, 1/4 |
| Konstelasi | QPSK, 16QAM, 64QAM |
| Kecepatan bit | 0.5Mbps hingga 31,67Mbps |
Federasi Rusia
| Pita Frekuensi | 160MHz~860MHz |
| Ukuran Langkah Penyetelan | 1KHz |
| Kepekaan | -97±1dBm(BB = 8MHz, QPSK, CR=2/3, GI=1/16) untuk satu saluran dan tambahkan 3dBm untuk dua saluran |
Video dan Audio
| Keluaran video | HDMI dan CVBS, Ethernet(Protokol RTSP secara default, pilihan UDP), USB |
| Format video | 1080P atau 720P
720*480 60SAYA(NTSC), 720*576 50SAYA(SAHABAT) |
| Penguraian Video | MPEG-4/H.264 AVC |
| Keluaran audio | Audio HDMI dan AV tertanam |
| Penguraian Audio | AAC |
| Dekripsi | AES256 |
| Penyimpanan | Disk USB atau kartu micro SD |
Pemantauan dan pengendalian
Comprehensive receiver setup with Our Config Panel or Windows PC or other devices via control UART.
Kisaran suhu
Spesifikasi lengkap: 0° hingga +70°C Lingkungan
Penyimpanan: –40° hingga +80°C
Ciri-ciri Fisik
Board Dimensions: 80.4*50.8mm
Persyaratan daya
Rentang masukan: 9~24VDC
Konsumsi daya: <300mA@12V
IO Signals
Kunci + LED:
The receiver module has a 2*5PIN PH2.0mm connector which provides “keys + LEDs” signals. It is designed for customers who want to expand LEDs and keys to their cases.
PWR led signal: this two-pin can connect to an led for the power indicator, and constant light when the device is normally powered.
The link led signal: this two-pin can connect to an led for a wireless link indicator, which blinks when the video stream is received.
REC led signal: this two-pin can connect to an led for a record indicator, and constant light when video recording.
REC key signal: this two-pin can connect to a button for the switch of video recording, and a short press to change its status. The receiver will automatically check the storage device(micro SD card or USB disk) after powering on and start to record video when the storage device is inserted. Just press it to stop or record again.
OSD key: this two-pin can connect to a button for turning on/off the status of the OSD displaying, tekan lama untuk beralih(more than 1s). The status will be kept after a reboot. When the OSD status is on without any OSD data input from the data uart, the device will display information on the video screen as:
Federasi Rusia：338.0MHz BW：4.0MHz ; Federasi Rusia, frekuensi kerja; BW, lebar pita
QPSK CR：2/3 GI：1/16 ; Konstelasi, FEC, Interval penjaga
UDARA：3.90Mbps ; UDARA, wireless transmitting bitrates
VBR：3.05Mbps AES OFF ; VBR, video bitrates; AES OFF, AES encryption turned off.
SIG1：27 SIG2：22 ; SIG1, the signal intensity of antenna 1; SIG2, the signal intensity of antenna 2
ber1：0.14% ber2：100.00% ; ber1, bit error rate of antenna 1; ber2, bit error rate of antenna 2
REKAM MATI Tanpa Penyimpanan ; video recording status
Paired with COFDM transmitter:
The default normal features of the two-antenna Wireless receiver module can be paired with all of Our H.264 transmitter modules. The HD video latency from its inputting of the transmitter to the HDMI screen displaying of the receiver is about 200~250ms.
Our two-antenna COFDM Wireless Receiver module can also be paired with our COFDM transmitter module for the lowest video latency application when manufactured with specified firmware. The specified firmware enables proprietary H.264 video compression/decompression only using p-frames for the lowest latency. Latensi video dari input pemancar ke tampilan layar HDMI penerima adalah sekitar 50 ms hingga 130 ms.
How to test COFDM IP wireless video data transmitter module?
ethernet modem in one way
FAQ
Please note that this network transparent transmission device is one-way transmission, it can only realize UDP broadcast function, although there is an RJ45 network port, but because it is not two-way transmission, it cannot realize the ping command, so even if you want to connect an IP camera, you need special customization IP cameras, because ordinary IP cameras need two-way transmission equipment.
How to test this network transparent transmission device, silakan periksa tautan di bawah ini
How to test COFDM IP wireless video data transmitter module
TIDAK, just net transfer via IP ethernet RJ45 input.
- If you want to test the video transfer, maybe you need an encoder board Vcan1746, transfer HDMI / CVBS video to IP stream, then connect the 1816 pemancar.
- Pertanyaan: I already have Vcan1776, which has a Vcan1746 encoder board at the transmitter module, should I get one more encoder board?
- Menjawab: Although the encoder board of Vcan1776 can be reused. It needs to disassemble the Vcan1776 RF module, then connect the network port adapter cable, and change the different firmware. It is not recommended to do this. It is recommended that you purchase another separate encoder board.
- The voltage range of TX RX is 7~24V.
- At 12V power supply, use an adapter with a maximum of 1A or more.
- Prepare a formattedFAT32format Micro SD card
fat32-format - Unzip the upgrade file from our verify and send to you, Di sini adalah "1816_update_image_xx_yy.zip" mengajukan, and copy it to the root directory of the Micro SD card, pay attention to keep the directory structure unchanged (ada folder flash di direktori root kartu Micro SD, and there is an app folder in it).
one-way ethernet transparent transmission moudle firmware upgrade - Insert the Micro SD card into the Vcan1816 module, hidupkan dan tunggu hingga lampu merah di papan berkedip, menandakan bahwa upgrade berhasil.
COFDM IP wireless video data transmitter module One-way Ethernet transparent transmission network port upgrade firmware - Catatan:
Under normal circumstances, the update will be completed within 30s after power-on (lampu merah berkedip). Jika lampu merah tidak berkedip dalam waktu lama setelah dihidupkan, please check the connection of Micro SD and try power-on again.
iya nih, this model support the function you need. Silakan periksa gambar di bawah ini, we have two solutions for you. The same TX module, there are optional RX1 or RX2 for you.
- At the above picture, TX module is only RJ45 ethernet data input, no video input, so there is no any encoder function.
- RX1 is added 2x RF demodulator board on the TX module. So the cost is higher than TX module. (one more top board)
- RX2 has same function, but which no TX transmitting function, it is only bottom decoder board + 2xRF demodulator board. It has RJ45 ethernet data port. So it can total meet your demand. And as the board has mass produce and cost can share and down.
Konstantin –
The COFDM IP wireless video transmitter vcan1816 delivers exceptional performance! Its one-way Ethernet transparency ensures seamless HD video/data transmission with ultra-low latency. Robust signal stability in challenging environments impressed us, while the plug-and-play network port simplified integration. Reliable beyond expectations for industrial/outdoor applications – a game-changer for real-time remote monitoring systems!
Yohanes –
This COFDM module provides reliable IP video and data transmission over distances of 10 untuk 100 kilometer, with latency under 50 milidetik. Customizable core modules are ideal for oil rigs, disaster relief drones, and battlefield communications.