用于攝錄機嘅無線視頻發射器和接收器, 冇人機視頻下載連結, COFDM
用于攝錄機嘅無線視頻發射器, 高清高清H265 264 編碼器1W/2.5W PA 1080P60
目錄
應用
- 全套HDMI輸入, 用于遠距離視頻傳輸嘅HDMI輸出.
- 高清無線視頻發射器和接收器套件,用于閉路電視安全攝錄機, 婚禮數碼單反相機攝錄機,
- 無線視頻發射器上嘅HDMI CVBS AV輸入, 接收器有以太網 / RJ45 / IP輸出到電腦, 用于直播嘅筆記簿
- 會議室無線視頻發射器 (發射器和接收器之間存在一些障礙, 非眎距: 無視線)
- Wireless 1080p video transmitter and receiver for Drone UAV video data downlink from the air to the ground
發射機優勢
- This high-definition digital wireless video transmission transmitter includes an HDMI / CVBS (analog AV Audio Video)encoding board, a COFDM modulation module, and a small 1瓦特或 2.5 watts PA 功率放大器糢塊.
- The entire box is made of a CNC aluminum alloy shell that is small and light. The transmission resolution is excellent, 並且傳輸距離長.
- Modulation using COFDM.
- By default, H265/H264 video encoding supports up to 1080P/I @60fps.
- AES256 encryption is adopted.
- Non-line-of-sight high-speed mobile transmission is supported. (Up to 800km/hour, support UAV Drone video download link)
- Support to configure the center frequency, 無線帶寬, transmission stream, and so on parameters. (How to Configure?)
變送器輸入輸出
AV輸入接口:
SD input interface, 4PIN 1.5mm pitch socket, audio support Mic in or Line in input (specified at the factory before shipment). PAL or NTSC format can be set through the parameter panel. (How to change PAL / NTSC video format?)
針 | 描述 |
鋁 | audio input Left channel |
抗逆轉錄病毒治療 | audio input Right channel |
吉安达 | 信號接地 |
av | 模擬視頻輸入 |
Configuration Interface:
Configuration serial port (Control UART), 4PIN 1.5mm pitch socket, TTL 3.3V 电平. The 5V signal is used to supply power to our parameter configuration board.
數據接口:
One-way transparent data serial port (數據 uart), the serial port data will be unidirectionally transmitted to the data serial port of the corresponding receiver through the COFDM wireless link. 3PIN 1.5mm pitch socket, the default shipment is TTL 3.3V level, and it can also be specified as a standard RS232 level serial port when shipped.
發射器規格
接口 | |
HD video input | Standard HDMI Interface |
標清視頻輸入 | 4PIN 1.5mm間距連接器 (CVBS模擬音頻視頻輸入) |
單向透傳串口 | 3PIN 1.5mm間距連接器, 默認出貨量為TTL3.3V電平. 標準RS232電平都可以在發貨前選配. |
配置串口 | 4PIN 1.5mm間距連接器, TTL3.3V. 它可以連接到我哋嘅 參數配置板, 亦可以連接到PC或其他主機 |
電源輸入 | XT30PW-M連接器 (12V 电源) |
天线接口 | sma 外螺紋內孔 |
無線調製傳輸 | |
無線調製 | COFDM |
ifft 模式 | 2K |
無線帶寬 | 1MHz~8MHz可調, 1KHz步進。 |
FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
警衛間隔 | 1/32, 1/16, 1/8, 1/4 |
星座 | QPSK, 16QAM, 64QAM |
無線代碼流 | 0.5Mbps至31.67M基點 (每秒叮咬次數) |
工作頻率帶 | 可選工作頻段:
300~360兆赫; 350~400兆赫; 450~500兆赫; 520~560兆赫; 580~620兆赫; 680~720兆赫; 820~860MHz. 200~860MHz之間的其他工作頻段可定制. 中心工作頻率係可配置嘅, 步進為1KHz. |
傳輸功率 | 1W (30Dbm) 或2.5W (34Dbm) |
音頻和視頻處理 | |
支持視頻輸入 | 默認單通道視頻輸入編碼傳輸: 高清或標清. 通電後自動檢測視頻輸入. 如果同時連接, 設備默認為首選HDMI輸入, 都可以更改為首選嘅AV輸入.
可選雙視頻輸入同時編碼同傳輸. |
支持嘅視頻格式 | 1080@60P, 1080@50P, 1080@30P, 1080@25P, 1080@24P, 1080@60I, 1080@50I, 1080@30I, 720@60P, 720@50P, 720@30P,
720*480 60我(ntsc), 720*576 50我(朋友) |
視頻編碼器 | H265或H264 |
音頻輸入 | HDMI嵌入式音頻或模擬CVBS右 / 左音頻輸入 |
音讯格式 | AAC, 16位, 立體聲, 32千字節 |
加密和解密 | AES256 |
維度 | 10.5*5*2.7厘米 |
重量 | <140 克 |
電源
电力消费 |
DC 12V電源 (11~13伏)
1W PA功率放大器: 功耗小於15W; 2.5W PA功率放大器: 功耗小於23W. |
延遲 | H265: 0.2~0.3秒; H264: 0.05-0.13 第二 |
變送器尺寸
無線圖傳接收器
接收器優勢
- 高清視頻COFDM無線接收器,帶HDMI / CVBS / Ethernet / USB輸出接口
- 綜合 斷續器 server that allows video streaming over Ethernet for remote decoders. (默認, rtsp://192.168.0.215/testStream ; port number should be 554, 唔係 8080) How to set RTSP player?
- Allows remote Android device decoders to stream video over USB. (Splayer Android APK V5.0_2017)
- Supports displaying character strings on the video display screen alongside the video in OSD mode.
接收器功能
- Dual diversity Antenna 接收
- Supporting working frequency band:160MHz~860MHz, the center operating frequency can be configured;
- Wireless bandwidth can be configured;
- Dual antenna receiving sensitivity -100±1dbm (QPSK 8MHz);
- 無線接收狀態信息 (eg Received signal strength, 空氣接口速率, data bit rate, operating frequency, 無線帶寬, 等) can be selected to be superimposed or not displayed on the video screen via the OSD switch button, and can also be output to the serial port (定製);
- 低延遲 h264 視頻解碼, with support for 1080P@60 decoding and playback;
- 音頻和視頻輸出 (HDMI, CVBS, 通用串口汇流排, and Ethernet interface output at the same time):
- HDMI A型端口音頻和視頻輸出
- CVBS (蓮花頭) 影音音頻和視頻輸出
- USB端口輸出視頻流到手機/平板電腦進行解碼和顯示
-
以太網RJ45輸出接口,用于直播, RTSP播放器撐
-
支持。 AES256解密 視頻接收
-
錄像 支持透過TF卡或U盘.
-
提供 1 串口,用于單向透明數據傳輸;
-
提供串口,用于工作設置嘅參數配置 (如中心工作頻率, 無線帶寬, 並接收解密密碼);
-
電源, 6~ 15V,
-
工作功耗: 230mA@12V
-
尺寸: 11.5x9x3.4厘米
-
重量: 255 克.
接收器輸入輸出
高清視頻輸出 | HDMI型硎Aó連接器 |
復合視頻輸出 | RCA連接器 |
音讯输出 | 嵌入式HDMI同RAA連接器 |
射頻輸入 | 2個SMA |
電源輸入 | 3PIN PH2.54mm連接器 |
USB主機 | A型連接器 |
TTL UART數據(3.3V) | 3PIN PH1.25mm連接器 |
TTL UART控制(3.3V) | 4PIN可鎖定連接器 (由左到右, Tx, rx, 吉安达, 5V) |
以太網 | RJ45 |
TF卡 | TF卡插槽 |
OSD鍵 | OSD顯示嘅開關鍵 |
錄製鍵 | 視頻錄製嘅開關鍵 |
COFDM全套視頻發射器和接收器
常見問題
請使用參數配置板查看.
更多參數配置板操作指南, 請參閱 https://ivcan.com/parameter-configuration-panel-quick-operation-guide/
- 保持天線儘可能高,因為接地會吸收信號.
- 嘗試喺B啲而唔係A啲. 因為根據天線的傳輸原理, it propagates in an umbrella shape. The signal at point A is often very weak.
- The Transmitter frequency range can change to 1.4G or 1.34G.
- The receiver frequency range only supports 170-860Mhz, if you need 1.4G or 1.34G, you need to install a frequency down converter block at the receiver.
- We don't have the frequency down converter block now, maybe you can contact the below supplier. (Performance is much better than China supplier now)
- https://www.ettus.com/product-categories/rf-daughterboards/
- https://www.vislink.com/product/l3025-down-converter/
- https://www.kuhne-electronic.com/funk/en/shop/leistungsverstaerker/prof-heat-sinks/KU+LNC+1215+C+PRO+Down+Converter/?card=1839
- Above parameter LO frequency choose 1000MHz.
This model COFDM wireless video transmitter support video source input connector, HDMI, CVBS AV, Sdi。, IP ethernet RJ45, and AHD, please tell us what video type you need before delivery.
射頻: 338.0兆赫帶寬: 4.0MHz; RF indicates the central operating frequency point, BW indicates the operating bandwidth
斷續器: 2/3 地理標誌: 1 /16 ; QPSK is the modulation method, CR is the convolution code rate, GI is the guard interval
空氣: 3.90Mbps ; AIR係空中接口速率
斷續器: 3.05Mbps AES關閉 ; VBR係視頻比特率, AES OFF意味住冇加密
SIG1系列: 27 SIG2 (英語:SIG2): 22 ; SIG1 refers to the received signal strength of the antenna near the HDMI port, SIG2 refers to another antenna
BER1: 0.14% BER2: 100.00% ;ber1 refers to the receiving bit error rate of the antenna near the HDMI port, ber2 refers to another antenna
REC OFF無存儲 ; REC OFF意味住冇視頻存儲
請點擊呢度.
There are COFDM wireless video transmitter boards, PA power amplifiers, and cooling fans.
From some UAV customers have measured 50km when they are testing, and the height of the UAV is about 300 米.
- If the transmitter modifies the wireless parameters such as constellation, 地理標誌, 鉻, and BW, the receiver must be restarted to lock and display normally.
- Another possibility is that your transmitter modifies the constellation parameters through the AT command, but the parameters are not actually written into the baseband board. You need to restart the transmitter board to confirm.
- Our one-way cofdm video transmission is not designed to consider your current usage scenario (fast switching frequency).
- This may not work, the delay of TX switching frequency involves many aspects, such as the delay of the encoder board itself (currently the main program processes parameter changes in a cycle of about 1 第二), and the processing delay of the baseband board, so add It takes about 2 second to switch. The processing delay of the encoder board can be squeezed to within 1 second by modifying the firmware, but the delay of the baseband board is not easy to squeeze, and the most important thing is that it is not easy to update the firmware (you must return to the factory to use our equipment to update the firmware).
- Summarize:
The encoder board may be able to reduce the processing delay of 1 second by updating the firmware, but the delay of the baseband board cannot be squeezed, so the final optimized delay is about 2 秒.
- Our Vcan1726 can support one HDMI and one auxiliary CVBS audio and video input at the same time, which can be connected to external microphones and power amplifiers.
- The current software can only support one sound source, which can be modified and selected through the parameter configuration board, HDMI sound, or CVBS sound, and cannot handle two channels of audio at the same time.
- 因為COFDM係單向傳輸, both video and audio can only be transmitted in one direction. From the transmitter to the receiver, the audio cannot have a two-way intercom, just like an ordinary radio, which can only broadcast in one direction.
The UART command is here.
Set Input Sources Command (switch HDMI / CVBS输入)
格式 | ATSU$(vin),$(ain)_ Example: ATSU0,1 _ |
參數 | 1. Video input selection VIN: 0 let the system detect; 1 force CVBS input; 2 force hdmi/SDI input 2. Audio input selection AIN: 0 let the system detect; 1 force analog input |
使用 | Used to meet specific application requirements (Example: HDMI/SDI input video, MIC input audio) |
Return Value | Example: ATSU0,1_ ATSU0,1 OK |
备注 | setting command, power-off save. |
獲取增益音頻輸入
格式 |
ATSAIS(lin),(ain vol)_ Example:ATSAI0,50_ |
參數 |
Analog audio input mode selection lin: 0 mic in;1 line ine Analog audio input volume control ain vol: mic in recommended 50; line in recommended 0 |
功能 | Used to set analog audio input parameters |
反馈 | 例如: ATSAl0,50_ ATSAI0,50 ok |
評論 |
Set the command and save it after power off. ain vol setting range [-78,80] |
COFDM Video Transmitter Frequency customize to 664Mhz
How to upgrade the COFDM wireless video receiver newe firwmare