岸船雙向通訊系統, 船對地雙向對講系統 10-15 Mbps以太網

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, 視訊監控, and voice communication in the area about 6 到 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.

FAQ

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. Do you have any suggestions?

A: 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 兆位元每秒. 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 沒有網路連線的伏特.

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, 請注意，挖泥船上沒有可用的網路連接.

• 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 – 我們附上了一份 pdf 文件，其中包含一些顯示「設定」的圖片. There is a mast located onshore as well.

好的, 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, (防水的, shockproof, anti-salt spray), 和 3 pcs 1.8-meter length fiberglass antenna. (one for the transmitter, two for the receivers)

我們推薦以下型號, COFDM-908T-5W

https://ivcan.com/p/30km-long-distance-cofdm-hdmi-wireless-video-transmitter

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

We used the COFDM(DVB-T) 科技, 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.

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Q: What information is required in order to provide an accurate Shore-to-Ship wireless link quotation?

A: To recommend the correct solution, model selection, and system configuration for a Shore-to-Ship wireless communication link, kindly share the following project information, if available:

1. 傳輸距離

• What is the required communication distance between shore and vessel?
• Please specify the maximum operational distance.

2. Required Throughput / 傳輸速率

• What bandwidth or data rate is required?
• Please indicate whether the application includes video, 嗓音, 數據, 雷達, 中央電視台, internet access, ETC.

3. Application Environment & Use Scenario

• Harbor / 港口
• Offshore platform
• Coastal surveillance
• Vessel fleet communication
• Temporary deployment
• Open sea operation
• Other special scenarios

4. Number of Nodes / Vessels

• How many vessels and shore stations will be connected?
• Point-to-point or point-to-multipoint network?

5. 中繼器 / Relay Requirement

• Will repeater or relay stations be required to extend coverage?
• Are there any obstacles affecting line-of-sight communication?

6. Shore-Side Installation Height

• Please provide the antenna installation height on the shore side.
• Tower/building/platform details are also helpful.

7. Vessel Antenna Installation Height

• Please provide the antenna mounting height on the vessel.
• Vessel type and movement conditions may also be relevant.

8. Frequency Preference or Regulatory Requirement

• Preferred frequency band (licensed or unlicensed)
• Country-specific spectrum regulations
• Military or industrial standards if applicable

9. 冗餘 & Network Topology Requirements

• Ring topology
• 網狀網路
• Backup link / failover requirement
• Dual-link redundancy

10. Power Supply Conditions

• Available input power
• DC or AC supply requirements
• Solar/battery-powered operation if applicable

11. 環境條件

• Salt fog / marine environment
• 高濕度
• Strong wind
• High temperature / low temperature
• Explosion-proof or hazardous area requirements
• IP protection rating requirements

12. Additional Project Requirements

• Required certifications
• Integration with existing systems
• Delivery timeline
• Tender specification or BOQ if available

Providing the above information will help us recommend the most suitable Shore-to-Ship wireless link solution and prepare an accurate technical and commercial quotation.

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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(選修的) 2.4G WIFI (2x100mw) 
調製類型: BPSK/QPSK/16-QAM/64-QAM/DSSS/CCK 
Data Rate Up to 82Mbps 
Network Capability 9 hops and no less than 64 nodes 
加密AES
RF Interface N F x2 
PTT Interface (選修的) LEMO 7-pin 
4G (選修的) Micro SIM x1 Electrical Characteristics

20W high RF power output

 Range up to 20 3 0km LOS

 Supports 100 240V AC wide voltage

 High bandwidth up to 82Mbps

 Supports AES encryption

 Supports HDMI input /output and LAN

 With dual antennas MIMO

 Supports up to 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: 1.4百萬赫
頻道頻寬: 2.5MHz (上行鏈路), 10MHz (下行鏈路)
最大發射能量: 33分貝
調製: OFDM
星座: BPSK, QPSK, 16QAM
前向糾錯碼: LDPC (1/2, 2/3, 3/4, 5/6)
雙工模式: 時分雙工
上列吞吐量: 300千比特/秒 (序列埠 + 網路連接埠 + 遙控)
下行吞吐量: 2Mbps~8Mbps
視訊介面: 乙太網路埠, 序列埠, PPM/SBUS
加密: AES128/256
尺寸: 150X100X54mm
重量: 1159g
工作電壓: 6電壓~16V
工作溫度: -20℃~60℃
Interface options: 乙太網路埠, 序列埠
傳輸距離: 5知識管理

優勢

支援點對點 (時分雙工) and point-to-multipoint applications (時分多址)
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

20數公里海上 HDMI 無線視訊發射器和接收器測試，適用於船隻或從岸到船