Shore-to-ship two-way communication system, boat-to-ground bidirectional intercom system with 10-15 Mbps ethernet

Shore-to-ship two-way communication system is to set up a wireless high-speed video network communication system on shore and on the boat. It is used to meet the needs of Internet access, 視頻監控, and voice communication in the area about 6 至 10 kilometers offshore.

Although our TX900 supports a range of 15 公里, the height of the transmitting antenna and the receiving antenna is very close to the sea level. Because there are waves in the sea, these will interfere with the wireless transmission system. If possible, the transmitter and receiver’s antenna must be placed as high as possible.

常問問題

Boat wireless video transmitter demand

Q: I’m searching for an option to send 4 pieces of 1080HD live stream videos over wireless without the internet. It must be a smooth picture and I will install it on a boat. Boat to boat so it will be moving and I must be able to be 360 degrees around. 你有什麼建議嗎?

一個: 如果 4 IP cameras are on the same ship, we can connect them to the same transmitter through the network cable and a network switch. Their 4 cameras will have 4 IP addresses and share a network transmitter.

Our two-way broadband network transmission equipment based on the IP interface supports a maximum rate of 30 megabits per second. Just make sure there is a line of sight between the transmitter and receiver antennas to provide smooth video quality.

We use omnidirectional antennas for both transmitters and receivers, so even if the ship turns around or rotates 360 度, it is best to install the antenna on the top of the ship so that the video signal will not be interrupted without obstruction.

Our network broadband transceivers are designed for use by drones or large fixed-wing aircraft. Their speeds can reach more than 800 kilometers per hour, so there is no problem for our transceivers to be used on ships.

You need to tell us what is the maximum distance between these two ships.
Knowing the distance between the two ships, you need to consider the waves between the ships, which may block the transmission between the antennas, so the antenna should be installed at the highest point of the ship as much as possible.

Q: Good morning are you able to provide a quote to supply a wireless video transmitter system, 我們操作一艘挖泥船，希望將影片從海岸傳輸到挖泥船，最大距離為 5 公里. It is in a marine environment so it would need to be robust and also run on 12 伏特沒有互聯網連接.

Before introducing a specific model, our engineer has some questions below.

• 1. Do you need a one-way or two-way transmission system? 單程, means just transferring the video from the shore to the dredge. 雙向, means sending and getting the video or data from one side to another side.
• 2. Is the camera on the shore or dredge? and the receiver is on the shore or the dredge. We need to consider the special case of the transmitter or receiver.
• 3. There are often undulating waves in the ocean. How high can the transmitting antenna and receiving antenna be installed?

客戶: Apologies for the late reply, Please be aware that there is no internet connection available on the dredge.

• 1 – We would need a one-way with the camera transferring from shore to the dredge
• 2 – The camera would be on the shore at the end of the discharge pipe and the receiver and monitor would be on the dredge so can see what is happening on shore.
• 3 – We have attached a pdf with some pictures which show the ‘set up’. There is a mast located onshore as well.

好, 單程, HDMI camera on the shore, the receiver on the dredge, transmission distance is 5km, 發射機, and receiver will be installed a special case, (防水, 防震, 防鹽霧), 同 3 pcs 1.8-meter length fiberglass antenna. (one for the transmitter, two for the receivers)

We recommended the below model, COFDM-908T-5W

30Km 遠距離 COFDM HDMI 無線視頻發射器接收器全套音頻視頻 TX RX 無人機無人機 1080P 908T

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Here is the test video for 10W at 20km.

We used the COFDM(DVB-T) 技術, which is similar to digital tv technology, with no need to use the internet. (The camera and transmitter are like a tv company transmitting tower, and the receiver is like a tv box at home)

For the maritime wireless communication environment, deploying MESH nodes on the shore base and ships can quickly establish a multi-hop broadband wireless network with high mobility, 抗干擾, and beyond-line-of-sight transmission, providing voice, 數據, and video between the shore base and the ship. Multimedia integrated transmission service.

The wireless private network is connected to the customs command center, and the supervised ships are connected to the shore-based base station wirelessly.

Supports real-time dynamic networking of ship formations at sea, frequency hopping anti-jamming capabilities greatly enhance the electromagnetic countermeasures of formations at sea, and self-healing properties ensure that the wireless network has tenacious vitality, and any node failure in the network will not affect the entire formation The operation of the network can be an “unbeatable maritime mobile network”.

Quickly build a self-organizing network without a center, fast and flexible networking between boarding law enforcement officers and ships, multi-hop automatic networking, fast self-healing, adapt to various complex maritime environments, and support multi-channel high-definition video.

manet IP mesh radio for long-range audio video 20km nlos, for internet sharing with the mesh radio link, internet sharing between sea and office.

關於 10 ships and just internet connection only place or install in the ship. We have our own internet dedicated provider, not from a cellular operator, so we want all ships that are nearby the seaports to have access to the internet. For bandwidth between 64kbps-1M bps, everyone can connect to the internet via wifi.

Default Frequencies 1400-1460MHz (350MHz-4GHz customizable)
Channel Bandwidth 2M/5M/10M/20MHz/40MHz
RF Channel 2T2R
Output Power 43dBm (2x10W)
無線上網 (可選的) 2.4G WIFI (2x100mw)
Modulation Type: BPSK/QPSK/16-QAM/64-QAM/DSSS/CCK
Data Rate Up to 82Mbps
Network Capability 9 hops and no less than 64 節點
Encryption AES
RF Interface N F x2
PTT Interface (可選的) LEMO 7-pin
4G (可選的) Micro SIM x1 Electrical Characteristics

20W high RF power output

Range up to 20 3 0公里視距

支持 100 240V AC wide voltage

High bandwidth up to 82Mbps

Supports AES encryption

Supports HDMI input /output and LAN

With dual antennas MIMO

最多支持 64 nodes MESH network

Full IP duplex transparent data transmission

Flexible networking and rapid deployment

2U rack mount design

With rugged aviation aluminum housing

Marine wireless video transmitter transmission

工作頻率: 1.4千兆赫
信道帶寬: 2.5兆赫 (上行鏈路), 10兆赫 (下行鏈路)
最大發射能量: 33dBm的
調製: OFDM
星座: BPSK, QPSK, 16QAM
前向糾錯碼: 低密度脂蛋白 (1/2, 2/3, 3/4, 5/6)
雙工模式: 時分雙工
上行吞吐量: 300kbps的 (串行端口 + 網口 + 遙控)
下行吞吐量: 2Mbps~8Mbps
視頻接口: 以太網端口, 串行端口, PPM/SBUS
加密: AES128/256
尺寸: 150X100X54mm
重量: 1159G
工作電壓: 6V~16V
工作溫度: -20℃~60℃
Interface options: 以太網端口, 串行端口
傳輸距離: 5KM

優點

支持點對點 (時分雙工) and point-to-multipoint applications (TDMA)
Excellent ground-to-ground transmission performance
Stable high-speed mobile communication performance
Reliable downlink in-band information transmission channel
ARQ retransmission and adaptive frequency hopping
低延遲
AES 加密
Customized for unmanned ships
Water cooling
ip65 waterproof
Image data control three in one
5KM long-distance wireless transmission

20km 海上 HDMI 無線視頻發射器和接收器測試，適用於船或從岸到船

關於無線視頻發射器和接收器的常見問題

1. 您的無線視頻發射器有哪些類型的視頻輸入端口?

我們的無線視頻發射器有這些類型的視頻輸入接口: HDMI 1080P 和 4K HDMI, CVBS複合材料, SDI, AHD, IP以太網, BNC, 或告訴我們您需要什麼類型, 我們的工程師將根據您的需求進行修改.

2. 你的無線圖傳支持的傳輸距離是多少?

我們的傳輸距離可以通過增加功率放大器來調整. 現在, 主要的是 15千米, 30千米, 50千米, 80千米, 100千米 , 和 150 公里, 這取決於客戶的需求.

當然, 上面列出的傳輸距離都在 LOS 視線範圍. 如果發射器和接收器之間有障礙物, NLOS (非視線), 傳輸距離大大縮短, 只有1公里或2公里, 取決於中間障礙物的數量和當地的無線環境.

3. 什麼是單向或雙向? 單工與半雙工, 全雙工

單程 方法, 我們只能從無線視頻發射器向接收器單向傳輸和下載視頻或數據, 我們無法將視頻或數據從接收器上傳到發射器. 這種類型也稱為單純形.

雙向 意思是, 我們不僅可以將視頻或數據從無線發射器下載到接收器, 但我們也可以將視頻或數據從接收器上傳到發射器. 這個非常適合操作無人機. 不僅可以看到無人機傳來的實時視頻, 也可以上傳控制無人機的指令或者控制雲台攝像機調整角度的指令到發射器. 這可以同時操作. 這種類型也稱為半雙工或全雙工.

請在以下鏈接中查看詳細信息. HTTPS://ivcan.com/request-a-quote-of-wireless-video-transmission/#simplex

4. 你的HDMI視頻發射器是否支持加密和接收器解密?

大多數無線視頻發射器現在支持 AES128 或 AES256 位加密和解密, 取決於您選擇的型號. 請聯繫我們進行驗證.

5. 普通用戶收貨後可以修改無線圖傳的頻率嗎?

無線視頻發射器和無線視頻接收器的頻率 可以修改. 用戶需另外購買參數配置板.

然而, 考慮到貨物發出時相應的功放和天線已經固定在一定範圍內. 如果用戶調整髮射機的頻率, 相應的 功率放大器, 發射天線和接收天線也應修改為相同頻率, 這些用戶需要做好準備. 如果不, 會導致無線視頻發射器的頻率與天線的頻率不同, 使接待困難. 所以請務必在下單前告知您需要的正確頻率.

如果是為了安全或保密, 你可以 使用加密和解密 發射器和接收器的功能, 這可以確保您的視頻傳輸是私密的. .

6. 我看到您的模型與我的需求非常相似, 但我需要修改其中一個參數, 那可能嗎?

是, 我們所有的產品 參數可定制 根據客戶的需要. 如果您有特殊要求, 請通過下面的鏈接告訴我們.

HTTPS://ivcan.com/request-a-quote-of-wireless-video-transmission/

7. 無線視頻接收器信號弱怎麼辦?

1. 更改接收器的位置 避免來自強磁場環境的潛在局部干擾.
2. 確保天線在 發射器和接收器都是垂直的.
3. 請將發射器和接收器的天線抬高到 保持一定的高度差.
4. 請環顧四周以確保 發射器和接收器之間沒有障礙物.
5. 改變方向 接收天線的.
6. 如果它不起作用, 嘗試 將接收器移動到靠近發射器的位置 看是否超過有效無線傳輸距離.
7. 或者考慮 添加發送的中繼 發射器和接收器之間.
8. 天線應盡可能遠離地面, 因為地面會吸收傳輸的信號.

8. 我可以只購買發射器和放大器的模塊嗎? 我想將它們組裝到我的設備中.

我們可以, 當然, 供應 無線視頻發射器 模塊和功率放大器.

對於第一個樣品測試, 我建議您購買整套產品，因為我們的工程師已經優化了參數以達到最佳性能.

完成測試驗證後, 您可以卸下外殼或散熱器, 將其安裝在您的設備中, 並不斷調整參數以達到最佳性能. 在將來, 您將只能購買您需要的模塊或附件.

9. 你能在發貨前拍一個測試視頻給我看嗎?

當然, 我們也了解無線視頻傳輸發射器和接收器非常昂貴. 你離中國工廠很遠. 並希望您收到的貨物適合最佳性能.

如果您特別注意特定的參數或功能, 我們可以根據您想看到的功能拍攝一些測試視頻, 請隨時與我們聯繫. 未經您的同意，不會直接發貨給您.

10. 如何測試無線視頻發射器和接收器的延遲?

測試無線視頻發射器和接收器的延遲, 我們需要做兩個測試.

首先是測試攝像頭到顯示器的延遲.

第二個是相機, 加上顯示器加上無線圖傳發射器和接收器的延遲.

兩次測試結果相減就是無線視頻發射端和接收端的真實延遲.