Offshore communication device and offshore service data transmission method

Abstract

The application relates to an offshore communication device and an offshore service data transmission method in the communication field. The method comprises the following steps: a main base station acquires service data from each base station in a communication network of an ad hoc network accessed by the main base station, the base stations are all offshore deployment, and the base stations comprise the main base station and a slave base station in wireless communication with the main base station; the main base station transmits the service data to an offshore scattering communication device arranged on the same carrier as the main base station through a wire; and the offshore scattering communication device converts the service data into a wireless signal and radiates the wireless signal to the troposphere. The application provides a corresponding solution for transmitting service data in a communication network on the sea to a shore base, can realize super-long-distance high-bandwidth communication between the sea and the shore, and has wide application value.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, in particular to an offshore communication device and an offshore service data transmission method. BACKGROUND

[0002] Offshore communication refers to data communication between a sea site and a land site. For example, when a large offshore project such as a wind farm or offshore resource exploration requires multiple ships to cooperate in construction, each ship needs to be equipped with a communication device to communicate with a control center on land, so as to realize data transmission between the sea site and the land site and facilitate remote collaboration of relevant personnel.

[0003] In order to realize offshore communication, one communication mode is to use a communication satellite to realize long-distance data transmission. However, due to the high cost of launching and maintaining the communication satellite and the limited traffic resources, the bandwidth requirement of various service data is becoming higher and higher, which leads to increasingly expensive use cost and significantly increased project cost, and thus it is difficult to become an optimal solution.

[0004] Another way to realize offshore communication is to use a microwave communication mode to realize point-to-point or point-to-multipoint data transmission, which can theoretically effectively reduce the cost. Microwave has the characteristics of easy bunching, high directivity and straight-line propagation, and can be used to transmit high-frequency signals in unobstructed line-of-sight free space. On the other hand, the frequency of microwave is extremely high and the wavelength is very short, which is very easy to be disturbed, reflected or blocked. Therefore, the effective communication distance of microwave communication is relatively short, generally less than 50 kilometers.

[0005] More embarrassingly, the distance between the sea site and the land site of the offshore project is usually more than 50 kilometers, and the microwave communication mode cannot meet the requirements, while the satellite communication mode cannot adapt to the demand of service data expansion. Therefore, as human civilization continues to sail into the deep sea, it is necessary to explore other effective ways to meet the offshore communication demand. SUMMARY

[0006] The present application aims to solve the above problems and provide an offshore communication device and an offshore service data transmission method.

[0007] To achieve the various purposes of the present application, the following technical solutions are adopted:

[0008] In one aspect, the present application provides an offshore service data transmission method, which comprises:

[0009] The master base station acquires service data from each base station in the communication network of the ad hoc network to which it is connected, wherein each base station is deployed offshore, including the master base station and the slave base station in wireless communication with the master base station.

[0010] cable transmitting the service data from the main base station to an offshore scatter communication device deployed on the same carrier with the main base station;

[0011] directing and radiating the service data from the offshore scatter communication device to troposphere direction as wireless signals.

[0012] Optionally, before the offshore scatter communication device directing and radiating the service data to troposphere direction as wireless signals, comprising:

[0013] acquiring global positioning information of the offshore scatter communication device by the offshore scatter communication device;

[0014] determining target direction angle corresponding to the directional radiation of the offshore scatter communication device antenna by the offshore scatter communication device according to its own global positioning information and the global positioning information of the offshore scatter communication device;

[0015] controlling the offshore scatter communication device antenna to perform direction angle adjustment so that the beam generated by the antenna radiates to troposphere direction according to the target direction angle.

[0016] Optionally, the step of controlling the offshore scatter communication device antenna to perform direction angle adjustment, comprising:

[0017] detecting reference signal transmitted by the offshore scatter communication device according to the global positioning information of the offshore scatter communication device and the global positioning information of the offshore scatter communication device to determine whether the communication link between the offshore scatter communication device and the offshore scatter communication device reaches stable state;

[0018] controlling the offshore scatter communication device antenna to perform direction angle adjustment when the communication link does not reach stable state.

[0019] Optionally, the step of controlling the offshore scatter communication device antenna to perform direction angle adjustment, comprising:

[0020] listening to the azimuth change information generated by the inertial navigation module carried by the offshore scatter communication device;

[0021] calculating attitude adjustment data of the mechanical antenna of the offshore scatter communication device according to the azimuth change information and the target direction angle;

[0022] driving the servo system to perform attitude adjustment control corresponding to the attitude adjustment data of the mechanical antenna so as to keep tracking and radiating to the predetermined troposphere direction.

[0023] Optionally, the step of controlling the offshore scatter communication device antenna to perform direction angle adjustment, comprising:

[0024] listening to obtain azimuth change information generated by an inertial navigation module of the offshore scatter communication device;

[0025] calculating feed phase data of a phased array antenna of the offshore scatter communication device according to the azimuth change information and the target direction angle;

[0026] setting the phased array antenna according to the feed phase data, so as to keep tracking and radiating in a predetermined troposphere direction.

[0027] Optionally, in the step of converting the service data into wireless signals and radiating the wireless signals in the troposphere direction by the offshore scatter communication device, the step comprises:

[0028] detecting a position change speed of a carrier on which the offshore scatter communication device is located;

[0029] judging whether the position change speed exceeds a preset threshold, and when the position change speed does not exceed the preset threshold, transmitting the wireless signals through a mechanical antenna of the offshore scatter communication device, otherwise, transmitting the wireless signals through a phased array antenna of the offshore scatter communication device.

[0030] Optionally, after the step of converting the service data into wireless signals and radiating the wireless signals in the troposphere direction by the offshore scatter communication device, the step comprises:

[0031] receiving, by the offshore scatter communication device, wireless signals scattered in the troposphere direction from a shore-based scatter communication device;

[0032] converting, by the offshore scatter communication device, the wireless signals into control data, the control data containing unique feature information of a terminal device as a receiving end;

[0033] broadcasting, by the offshore scatter communication device, the control data to the entire communication network through the master base station, so as to implement corresponding control on the terminal device pointed by the unique feature information in the communication network according to the control data.

[0034] Optionally, before the step of obtaining, by the master base station, service data of each base station in a communication network of an ad hoc network accessed by the master base station, the step comprises:

[0035] setting one of the base stations corresponding to the carriers as a master base station, and setting other base stations as slave base stations to form a communication network with the master base station, all the base stations in the communication network are connected, and each base station is connected to at least two other base stations.

[0036] Optionally, after the step of converting the service data into wireless signals and radiating the wireless signals in the troposphere direction by the offshore scatter communication device, the step comprises:

[0037] receiving, by a shore-based scatter communication device, the wireless signal transmitted via tropospheric scatter;

[0038] converting the wireless signal into service data and transmitting the service data to a shore-based control device;

[0039] decoding and outputting the service data by the shore-based control device.

[0040] Optionally, receiving, by a shore-based scatter communication device, the wireless signal transmitted via tropospheric scatter, comprises:

[0041] receiving, by an antenna of the shore-based scatter communication device, a plurality of sub-signals of the wireless signal;

[0042] converting the plurality of sub-signals into the same wireless signal by using a preset diversity algorithm, wherein the diversity algorithm is any one of a frequency diversity algorithm, a space diversity algorithm, and an angle diversity algorithm.

[0043] In another aspect, an offshore communication device is provided for one of the purposes of the present application, comprising an offshore scatter communication device and a master base station assembled with a carrier, wherein the master base station is configured to form a communication network with a plurality of slave base stations on other carriers, and the master base station is configured to receive service data generated by each slave base station and transmit the service data to the offshore scatter communication device, and the offshore scatter communication device is configured to convert the service data into a wireless signal and radiate the wireless signal in the direction of the troposphere.

[0044] Optionally, the carrier is any one of a ship deck, a top of a ship bridge, a tower of a sea wind farm, and a floating platform / building arranged on a sea surface surrounded by a plurality of the towers.

[0045] Compared with the prior art, the present application has a plurality of advantages, including but not limited to:

[0046] Firstly, the present application uses a plurality of base stations to build a self-organizing network communication network under offshore conditions, and one of the base stations is configured as a master base station to establish a wired connection with an offshore scatter communication device, so that service data generated by terminal devices covered by each base station is collected to the master base station, and then transmitted to the offshore scatter communication device by the master base station in a wired manner, and the offshore scatter communication device converts the service data into a wireless signal and radiates the wireless signal in the direction of the troposphere, so that the shore-based scatter communication device receives the wireless signal, realizes long-distance communication between the sea and the land, and obtains an effective offshore communication solution.

[0047] Secondly, since the tropospheric scatter communication has the advantages of long-distance transmission and convenient deployment, the business data obtained by the offshore operation can break through the distance limit of the microwave communication while maintaining a low implementation cost. According to the actual measurement, in the range of 50 kilometers to 150 kilometers in straight line distance in space, the application can obtain a large bandwidth communication rate of up to 50 Mbps, which overcomes the respective shortcomings of microwave communication and satellite communication, and achieves the effect of both distance and bandwidth.

[0048] In addition, the application is suitable for various offshore engineering scenes. For offshore wind farms and their construction sites, offshore oil exploration, and even island development sites, the application can be applied. For network coverage and data transmission in areas where mobile communication networks cannot reach, the application can effectively make up for the short board and can be widely deployed in the field of civil communication. It has far-reaching significance for ocean development. BRIEF DESCRIPTION OF DRAWINGS

[0049] The above and / or additional aspects and advantages of the application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0050] Figure 1 It is a schematic diagram of the principle of the remote communication system of the application;

[0051] Figure 2 It is a schematic diagram of the principle of the offshore communication system of the application;

[0052] Figure 3 It is a flowchart of an embodiment of the offshore business data transmission method of the application;

[0053] Figure 4 It is a network architecture diagram of the communication network of the application;

[0054] Figure 5 It is a flowchart of the application embodiment according to the global positioning information to perform the direction angle adjustment;

[0055] Figure 6 It is a schematic diagram of the mathematical principle of determining the target direction angle in the embodiment of the application;

[0056] Figure 7 It is a flowchart of adjusting the mechanical antenna to align the target direction angle in the embodiment of the application;

[0057] Figure 8 It is a flowchart of adjusting the mechanical antenna to align the target direction angle in the embodiment of the application;

[0058] Figure 9 It is a flowchart of controlling the terminal equipment in the offshore communication system according to the wireless signal of the shore-based scatter communication equipment in the embodiment of the application;

[0059] Figure 10 A flowchart of a process for handling traffic data transmitted by an offshore scatter communication device by a shore-based scatter communication device in an embodiment of the present application. DETAILED DESCRIPTION

[0060] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like component have the same or similar designations. The embodiments described below are presented by way of example only and are not intended to limit the application as defined by the appended claims.

[0061] As will be understood by those skilled in the art, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0062] As will be understood by those skilled in the art, the term "terminal device" as used herein includes both devices that are merely wireless signal receivers, and devices that have both receiving and transmitting hardware, capable of two-way communication over a two-way communication link. Such devices can include personal computers, tablet computers, surveillance cameras, smart televisions, smart phones, and other communication devices that have the ability to process video, voice, data, and other information.

[0063] As will be understood by those skilled in the art, the various methods of the present application, while described based on the same concepts and thus exhibiting commonality with each other, are each independently executable unless otherwise specified. Similarly, each of the various embodiments disclosed herein are based on the same inventive concept, and thus, the same concept expressed in the same manner, and a concept that is expressed differently but is merely appropriately transformed for convenience, should be understood as equivalent.

[0064] As will be understood by those skilled in the art, the various embodiments disclosed herein can be combined with each other as long as the combination does not depart from the spirit of the present application and satisfies the needs of the related art or solves some aspect of the related art, unless it is explicitly stated that the embodiments are mutually exclusive. As such, those skilled in the art will appreciate.

[0065] Reference will now be made to Figure 1The principle diagram of the remote communication system of the application is shown in the figure, it can be seen that the remote communication system of the application is composed of two parts, the shore-based part 20 and the off-shore part 40, the wireless signals generated by each part are transmitted to the troposphere 10 above the earth, and then scattered to the earth's surface by the troposphere 10, and received by the other part, so as to realize the effect of long-distance high-bandwidth-rate remote communication. The shore-based part 20 and the off-shore part 40 can realize the duplex communication capability, so as to facilitate the efficient two-way communication.

[0066] Please refer to Figure 2 , Figure 2 The off-shore communication system of the application is shown, which includes a plurality of base stations dispersedly arranged on a plurality of carriers, usually one or more base stations can be arranged on each carrier, and each base station can form a communication network 50 with each other, each base station is responsible for signal coverage of a region, and the terminal equipment (not shown) in the region covered thereby can forward service data via the base station responsible for the region through the switch (not shown), and finally transmit the service data to the off-shore scattering communication equipment to realize remote communication with the shore-based part 20.

[0067] Specifically, the off-shore communication device of the application includes the off-shore scattering communication equipment 410 and the master base station 415 arranged on the carrier, the master base station 415 is used to form a communication network 50 with a plurality of slave base stations on other carriers, wherein the master base station 415 receives service data generated by each slave base station 51 and transmits the service data to the off-shore scattering communication equipment 410, and the off-shore scattering communication equipment 410 is used to convert the service data into wireless signals and radiate the wireless signals to the troposphere 10.

[0068] In one embodiment, the communication network 50 is a communication network 50 constructed based on the MESH networking scheme, that is, each base station is given the self-networking capability according to the MESH networking scheme, so that each base station is connected with each other, and each base station is connected with at least two other base stations. In the communication network 50, one of the base stations is pre-set as the master base station 415, and the other base stations automatically form the communication network 50 with the master base station 415 as slave base stations 51.

[0069] Each base station can access a plurality of terminal equipment through the switch, the terminal equipment can be a monitoring camera device or other computer equipment, a sensing device, etc., and the data collected by each terminal equipment can be packaged as service data, which is forwarded to the master base station 415 or the off-shore scattering communication equipment 410 by the master base station 415 after being packaged by the base station.

[0070] In the communication network 50, the service data can be encapsulated according to a first communication protocol adopted in the communication network 50, for example, the first communication protocol can be WiFi protocol; between the main base station 415 and the offshore scattering communication device 410, the service data can be encapsulated according to a second communication protocol, for example, the second communication protocol can be TCP / IP protocol; and between the offshore scattering communication device 410 and the shore-based scattering communication device of the shore-based part 20, the service data can be encapsulated according to a third communication protocol, for example, the third communication protocol can be various versions of mobile communication protocol.

[0071] The main base station 415 and the offshore scattering communication device 410 are usually deployed in the same carrier, and in order to achieve more reliable data transmission, in one embodiment, the main base station 415 and the offshore scattering communication device 410 can transmit service data in a wired connection manner. Thus, the main base station 415 and the offshore scattering communication device 410 connected with each other in the same carrier constitute an offshore communication device, which facilitates one-stop deployment.

[0072] The carrier can be different physical objects according to different application scenarios. For example, in one embodiment, in a wind farm construction site, the carrier can be a ship, specifically, for example, the deck of the ship or the top of the ship's cockpit, and when a plurality of ships are scattered on the sea for operation, one of the ships deploys the offshore communication device of the present application, that is, deploys the offshore scattering communication device 410 and the main base station 415 in the communication network 50 of the present application. Correspondingly, the other ships can deploy the slave base station 51 of the present application, and each ship can be equipped with various monitoring camera devices, computer equipment, sensing equipment, etc. for collecting various data of the construction site to obtain corresponding service data, which is transmitted through the offshore communication system of the present application. It is not difficult to understand that the ship is a moving physical object, and since the communication network 50 of the present application has the ability of self-organization, more ships can be accessed very conveniently and quickly as long as the corresponding ships are equipped with the slave base station 51. Similarly, when the ships carrying the slave base station 51 individually leave the construction site, the communication network 50 of the present application can still work normally.

[0073] In another embodiment, after the wind farm construction is completed, each tower of the wind farm can be used as a carrier, and the base station of the communication network 50 of the present application is deployed thereon, one of which is the main base station 415 and is equipped with the offshore scattering communication device 410, and the remaining base stations can be used as the slave base station 51, thereby the communication network 50 of the present application can also be established in the wind farm to achieve the same purpose. Deploying the base station on the tower based on wind power generation to provide power can make it more convenient to obtain power for the offshore communication device of the present application.

[0074] In another embodiment, a plurality of floating platforms or buildings can be arranged in a sea area surrounded by a plurality of adjacent tower poles in a wind farm, and then the slave base station 51 or the offshore communication device of the communication network 50 of the present application can be deployed on the floating platforms or buildings, and the communication network 50 of the present application can be composed by the base stations on the plurality of adjacent floating platforms or buildings.

[0075] Of course, the wind farm is only one of the application scenarios of the present application, and similar construction scenarios such as oil exploration, combustible ice mining, and mobile fishing farm can also deploy the offshore communication system of the present application according to the application example of the wind farm, which can achieve the same effect as the above-mentioned exemplary wind farm application scenario.

[0076] In one embodiment, any slave base station 51 can be correspondingly prepared with an offshore scattering communication device 410, so that when the offshore communication device where the master base station 415 is located fails, the slave base station 51 and the offshore scattering communication device 410 prepared therefor can be quickly configured as a replacement offshore communication device, and the remote communication with the shore-based scattering communication device of the present application can be quickly restored, so that the operation of the offshore communication system of the present application is more robust.

[0077] In one embodiment, the shore-based scattering communication device and the offshore scattering communication device 410 on the carrier can use diversity transmission and diversity reception technology for wireless information transmission and reception. The diversity algorithm used can be a frequency diversity algorithm, a space diversity algorithm, or an angle diversity algorithm. To adapt to the frequency diversity algorithm, the transmitting end transmits a plurality of frequency signals of the same wireless signal through the same antenna, and the receiving end extracts the same wireless signal after receiving a plurality of frequency signals. To adapt to the space diversity algorithm, the transmitting end transmits a plurality of signals of the same wireless signal through a plurality of distributed antennas, and the receiving end extracts the same wireless signal after receiving a plurality of signals. To adapt to the angle diversity algorithm, the transmitting end transmits a plurality of signals of the same wireless signal through a plurality of beams, and the receiving end extracts the same wireless signal after receiving a plurality of signals. Through the diversity technology, the reliability of the wireless signal transmission can be improved.

[0078] The remote communication system realized according to the present application obtains ideal test data when tested in a wind farm construction scene with ships as carriers. In the test scene, one of the five ships is equipped with the offshore communication device of the present application, i.e. contains the offshore scattering communication equipment 410 and the master base station 415 in the communication network 50, while the other ships are equipped with single slave base stations 51. Each ship is equipped with 5 cameras for collecting live audio and video streams, and the 5 cameras are connected to the corresponding slave base stations 51 through switches. Each slave base station 51 forwards the audio and video streams collected from the ship where it is located to the master base station 415 as service data, and the master base station 415 converts the service data into wireless signals through the offshore scattering communication equipment 410 and transmits the wireless signals to the troposphere 10. After the wireless signals are scattered by the troposphere 10, they are received by the shore-based scattering communication equipment, thereby determining the actual measurement data.

[0079] During the actual measurement, the shore-based part 20 is deployed on a temporary experimental high ground in the Dannaohai petrochemical industrial zone of Jieyang, Guangdong Province. The antenna of the shore-based scattering communication equipment is installed at the experimental high ground 20 meters away. The offshore part 40 is temporarily and movably deployed on the sea surface about 80 kilometers, 100 kilometers, 120 kilometers and 150 kilometers away from the experimental high ground, respectively, without any obstruction in between. According to the actual measurement, the data transmission bandwidth of each camera in each ship reaches 2 Mbps, and each ship occupies 10 Mbps of transmission bandwidth. The transmission bandwidth of the offshore part 40 and the shore-based part 20 of the scattering communication is as high as 50 Mbps, but ideal results can still be achieved. By properly applying data compression technology, the video stream of some cameras with a resolution of 1080P can still ensure a smooth frame rate of more than 24 frames per second after being received by the shore-based scattering communication equipment and decoded and displayed by the shore-based control equipment, and the display effect is clear.

[0080] The remote communication system of the present application can implement remote communication by executing an offshore service data transmission method of the present application. The method mainly performs the main steps by the offshore communication device of the present application, thereby playing a pivotal role in the communication transmission process of the entire remote communication system. Please refer to Figure 3 The offshore service data transmission method of the present application includes the following steps in one embodiment:

[0081] Step S1100, the master base station acquires service data from each base station in the communication network of the ad hoc network accessed by the master base station, each base station being offshore deployed, including the master base station and the slave base stations in wireless communication with the master base station;

[0082] The offshore communication system of the present application is suitable for offshore deployment on the sea surface, and in the communication network 50 constructed thereby, the main base station 415 and the offshore communication scattering device are deployed on the same carrier, such as a sea surface vessel, to form the offshore communication device of the present application, and each slave base station 51 communicates with each other, and the main base station 415 plays a role in collecting the service data submitted by each slave base station 51.

[0083] In the communication network 50 described above, each base station can be configured to operate in a first communication protocol, so that each slave base station 51 uniformly forwards the service data collected by the terminal device within the range of its signal to the main base station 415, and the main base station 415 also serves the terminal device on the carrier and can obtain the service data of these terminal devices, so that the main base station 415 can collect the service data generated in the entire communication network 50 and then transmit it to the offshore scattering communication device 410 connected by wire.

[0084] In the communication network 50 described above, each base station can be configured to operate in a first communication protocol, so that each slave base station 51 uniformly forwards the service data collected by the terminal device within the range of its signal to the main base station 415, and the main base station 415 also serves the terminal device on the carrier and can obtain the service data of these terminal devices, so that the main base station 415 can collect the service data generated in the entire communication network 50 and then transmit it to the offshore scattering communication device 410 connected by wire. Figure 4 As shown in the figure, the wireless Mesh network belongs to the type of wireless local area network. Unlike the traditional WLAN, the APs in the wireless MESH network can be interconnected in a wireless manner, and multi-hop wireless links can be established between the APs. The base stations on each carrier are connected to each other by MESH self-organizing network technology, and ultimately all the service data is collected through the main base station 415, so that the carrier can be remotely communicated with the shore-based part 20.

[0085] The service data collected by each terminal device and transmitted to the shore-based part 20 can include any type of data, such as control data, audio and video stream data, text data, image data, etc., which is not limited according to the specific service.

[0086] Step S1200, transmitting the service data by wire from the main base station to the offshore scattering communication device deployed on the same carrier as the main base station;

[0087] After the main base station 415 receives the service data forwarded by each slave base station 51 and the service data generated by the terminal device within its coverage range, it submits the service data to the offshore scattering communication device 410 connected by wire.

[0088] In one embodiment, the main base station 415 and the offshore scattering communication device 410 establish data communication based on a second communication protocol, so that when they transmit data to each other, such as the service data described above, they can be encapsulated as messages corresponding to the second communication protocol for transmission.

[0089] The main base station 415 is connected to the offshore scattering communication device 410 by a wired connection, such as an optical fiber, a coaxial cable, or a network cable, to make the communication link between them more stable.

[0090] In step S1300, the offshore scattering communication device converts the service data into a wireless signal and radiates it in the direction of the troposphere.

[0091] After the offshore scattering communication device 410 obtains the corresponding message, it parses the service data therein and then converts the service data into a wireless signal. The offshore scattering communication device 410 radiates the wireless signal in the direction of the troposphere 10 through the antenna equipped thereon. The wireless signal is scattered by the troposphere 10 to the shore-based part 20, and is received by the antenna on the shore-based scattering communication device to obtain the service data in the wireless signal and transmit it to the shore-based control device for output processing.

[0092] The offshore scattering communication device 410 and the shore-based scattering communication device can use a third communication protocol to transmit data between them, including the service data and control signaling.

[0093] The antennas equipped on the offshore scattering communication device 410 and the shore-based scattering communication device can be either phased array antennas or mechanical scanning antennas, which are referred to as mechanical antennas. In an embodiment, either of the shore-based part 20 and the offshore part 40 can use either of the two types of antennas. During long-distance communication, the orientation of the beam of the antenna is adjusted in real time according to a preset algorithm to ensure that the wireless signal is always radiated in the direction of the troposphere 10, so that the wireless signal can be correctly scattered by the troposphere 10 to the geographical range of the other part and received by the antenna of the other part. Generally, the devices in the shore-based part 20 are relatively fixed in position, while the antennas on the floating platform, ship, or other carrier on the sea surface are prone to be not fixed in position. Therefore, the preset algorithm can be mainly applied to the antenna of the offshore scattering communication device 410 to ensure stable communication between the offshore scattering communication device 410 and the shore-based scattering communication device.

[0094] The phased array antenna can change the direction angle of the beam formed by the radiating surface of the antenna by changing the phase of the wireless signal input to each radiating unit of the antenna, including the tilt angle and azimuth angle of the beam, to adjust the transmission direction of the beam, so that the wireless signal is always transmitted in the direction of the troposphere 10, to ensure stable communication between the shore-based part 20 and the offshore part 40.

[0095] The mechanical scanning antenna comprises a servo system, and the rotation and tilt of the entire antenna can be controlled through the servo system, so as to change the azimuth and tilt of the beam of the antenna, and adjust the radiation direction of the beam. Through presetting a corresponding algorithm, the rotation data of the antenna can be calculated according to the real-time position change information of the mechanical scanning antenna on the carrier, and the servo system is driven to rotate the mechanical scanning antenna according to the rotation data, so as to adjust the radiation direction angle.

[0096] Therefore, no matter whether the offshore scattering communication device 410 is equipped with a mechanical scanning antenna or a phased array antenna, a preset tracking algorithm can be used to adjust the orientation of the radiation surface of the antenna in time, so that the wireless signal transmitted through the antenna is always directed to the designated troposphere 10, thereby realizing directional radiation of the wireless signal and ensuring stable communication between the shore-based part 20 and the offshore part 40.

[0097] In an embodiment, the offshore scattering communication device 410 can be equipped with both a mechanical scanning antenna and a phased array antenna, and then according to the travel speed of the carrier, which can be determined through global positioning information generated by a Beidou receiver or a GPS receiver carried by the offshore scattering communication device 410, it is determined whether the travel speed is higher than a preset threshold. When the travel speed is higher than the preset threshold, the wireless signal is transmitted through the phased array antenna, otherwise, the wireless signal is transmitted through the mechanical scanning antenna. This embodiment mainly considers that the mechanical scanning antenna can be applied to most scenarios, but when the travel speed of the carrier is too high, the phased array antenna can exhibit higher sensitivity to motion changes, so that the two types of antennas are equipped at the same time, which can not only provide stable communication capability compatible with all scenarios, but also can play a systematic disaster recovery role.

[0098] According to the above embodiments, it can be seen that the present application has many advantages, including but not limited to:

[0099] Firstly, under offshore conditions, the present application uses multiple base stations to construct a self-organizing network communication network 50, so that one of them becomes a main base station 415 to establish a connection with the offshore scattering communication device 410 in a wired transmission manner. Therefore, the service data generated by the terminal devices covered by each base station is collected to the main base station 415, and then submitted to the offshore scattering communication device 410 in a wired transmission manner by the main base station 415. The offshore scattering communication device 410 converts the service data into a wireless signal and radiates it to the troposphere 10, so that the wireless information is received by the shore-based scattering communication device, realizing long-distance communication between sea and land, and obtaining an effective offshore communication solution.

[0100] Secondly, since the troposphere 10 scattering communication has the advantages of long distance transmission and convenient deployment, the business data obtained by the offshore operation can break through the distance limit of microwave communication, while maintaining a low implementation cost. According to the test, in the range of 50-150 km in straight line distance, the application can obtain a large bandwidth communication rate of up to 50 Mbps, which overcomes the respective shortcomings of microwave communication and satellite communication, and achieves the effect of both distance and bandwidth.

[0101] In addition, the application is suitable for various offshore engineering scenes. For offshore wind farms and their construction sites, offshore oil exploration, and even island development sites, the application can be applied. For network coverage and data transmission in areas where the mobile communication network 50 cannot reach, the application can effectively make up for the shortcomings and can be widely deployed in the field of civil communication. It has far-reaching significance for ocean development.

[0102] On the basis of any embodiment of the application, before the offshore scattering communication device converts the business data into wireless signals and directs the radiation in the direction of the troposphere, please refer to Figure 5 , including:

[0103] Step S2100, obtaining global positioning information of the shore-based scattering communication device by the offshore scattering communication device;

[0104] The offshore scattering communication device 410 can be installed with a receiver suitable for obtaining global positioning information, such as a Compass (Beidou), GPS, and a receiver corresponding to a global positioning system, so as to obtain global positioning information generated by these receivers in real time, that is, latitude and longitude information, which represents the specific geographic location of the offshore scattering communication device 410 with the carrier.

[0105] Step S2200, determining the target direction angle corresponding to the directional radiation of the antenna of the offshore scattering communication device according to the global positioning information of the offshore scattering communication device and the global positioning information of the shore-based scattering communication device;

[0106] It is not difficult to understand that when the geographic position of the offshore scattering communication device 410 changes, if its antenna still transmits wireless signals to the troposphere 10 according to the original direction angle, it may cause the wireless signals to be unable to be effectively scattered to the geographic range where the shore-based part 20 is located, resulting in communication link interruption. Therefore, once the geographic position of the offshore scattering communication device 410 changes, the antenna carried by it should adjust its beam direction adaptively, so as to ensure that the wireless signals transmitted by it can be accurately scattered to the range where the shore-based scattering communication device is located and be accurately received.

[0107] Considering that the equipment in the shore-based section 20 is generally fixed, directional tracking radiation can be achieved mainly by adjusting the beam orientation of the antenna in the offshore section 40. Therefore, the target direction angle corresponding to the directional radiation of the antenna of the offshore scattering communication device 410 can be recalculated.

[0108] like Figure 6 As shown, the global positioning information of the shore-based scattering communication device determines the first point A on the Earth's surface, and the global positioning information of the offshore scattering communication device 410 determines the second point B on the Earth's surface. Let the straight-line distance between the two points be S. d Let the height of troposphere 10 be S. h Therefore, the target direction angle θ of the beam of the offshore scattering communication device 410 can be conveniently calculated using trigonometric function formulas, as shown in the following formula:

[0109] tanθ=2S h / S d

[0110] The specific value of the target direction angle θ can be calculated using this formula. This target direction angle indicates the angle at which the beam of the offshore scattering communication device 410 should be set to radiate directionally into the troposphere 10, assuming that its antenna is stable on the sea surface, based on the geographical location of the device.

[0111] Step S2300: The offshore scattering communication device controls its antenna to perform directional angle adjustment, so that the beam generated by the antenna radiates towards the troposphere according to the target directional angle.

[0112] Once the target azimuth angle is determined, the offshore scattering communication device 410 can control the antenna to radiate a beam oriented towards the troposphere 10 when transmitting wireless signals, based on the target azimuth angle. Specifically, without considering any external jitter that could cause the antenna to physically tilt or turn, the beam orientation of the antenna can be set based on the target azimuth angle. By resetting the beam according to this target azimuth angle, it can be ensured that the beam, after being scattered by the troposphere 10, can accurately radiate to the shore-based portion 20 and be successfully received by the antenna of the shore-based scattering communication device.

[0113] In one embodiment, the antenna is a mechanically scanned antenna. Setting the target azimuth angle of the mechanically scanned antenna requires controlling the antenna's turning and tilt angles via its servo system. In another embodiment, the antenna is a phased array antenna. Setting the target azimuth angle of the phased array antenna is achieved by calculating the corresponding feed phase angle.

[0114] According to the above embodiments, it is not difficult to see that by determining the geographical position of the offshore scattering communication device 410 in real time according to the global positioning information thereof, by referring to the geographical position of the offshore scattering communication device 410 and the geographical position of the shore-based part 20, the new target direction angle of the offshore scattering communication device 410 can be determined again, and the beam direction of the antenna can be adjusted in time according to the target direction angle, which can ensure that the antenna of the offshore scattering communication device 410 is accurately directed to the direction of the stratosphere 10, and the wireless signal is successfully scattered to the shore-based part 20 through the stratosphere 10. Similarly, the signal transmitted by the shore-based part 20 through the stratosphere 10 can also be accurately received, and the stable communication link can be ensured.

[0115] On the basis of any of the embodiments of the present application, in the step of controlling the antenna of the offshore scattering communication device to perform direction angle adjustment, the following steps are included:

[0116] Step S2311, detecting, by the offshore scattering communication device, a reference signal transmitted by the shore-based scattering communication device, and determining whether the communication link between the offshore scattering communication device and the shore-based scattering communication device reaches a stable state according to the reference signal;

[0117] The stable communication link is the basis for correct data transmission, and therefore, the offshore scattering communication device 410 can detect whether the communication link is in a stable state, so as to perform signal transmission only when it is in a stable state, otherwise, if it does not reach a stable state, corresponding direction angle adjustment processing is performed.

[0118] The shore-based part 20 is generally fixed in position, and therefore, the shore-based scattering communication device of the shore-based part 20 can continuously broadcast a reference signal to the stratosphere 10. The offshore scattering communication device 410 receives various signals scattered by the stratosphere 10 through the antenna thereof, and then detects the signals, and determines whether the communication link is stable according to whether the signal strength or signal-to-noise ratio of the received reference signal reaches a preset threshold value. In one embodiment, it is determined that the communication link has reached a stable state only when the signal strength or signal-to-noise ratio of the reference signal is higher than the threshold value at a plurality of continuous time points, otherwise, it is considered that the communication link has not reached a stable state.

[0119] Step S2312, when the communication link does not reach a stable state, controlling, by the offshore scattering communication device, the antenna thereof to perform direction angle adjustment.

[0120] It is not difficult to understand that when the communication link does not reach a stable state, it is usually because the antenna of the offshore scattering communication device 410 cannot accurately align the wireless signal of the shore-based part 20 scattered by the stratosphere 10, and therefore, the offshore scattering communication device 410 can control the antenna thereof to perform direction angle adjustment, so as to adjust it according to the latest target direction angle.

[0121] According to the above embodiments, the offshore scattering communication device 410 can adaptively detect the reference signal of the shore-based part 20, determine whether the communication link is stable according to the reference signal, and adjust the target direction angle of its antenna in time when the communication link is unstable, so as to ensure the stable communication link and realize remote communication.

[0122] On the basis of any embodiment of the present application, the offshore scattering communication device controls its antenna to perform direction angle adjustment, please refer to Figure 7 , which comprises:

[0123] Step S2321, listening to the azimuth change information generated by the inertial navigation module carried by the offshore scattering communication device;

[0124] The offshore scattering communication device 410 also carries an inertial navigation module, which can be installed in a mechanical scanning antenna, such as an acceleration sensor or a gyroscope, etc. The inertial navigation module can collect azimuth change information generated by the antenna during movement, including three-axis acceleration, three-axis angular velocity and attitude information, etc.

[0125] Step S2322, calculating the attitude adjustment data of the mechanical antenna of the offshore scattering communication device according to the azimuth change information and the target direction angle;

[0126] The control unit carried by the antenna performs carrier attitude calculation according to the azimuth change information obtained by the inertial navigation module, and according to the carrier attitude calculation result and the strength information of the received wireless signal of the shore-based part 20, the attitude adjustment data corresponding to the target direction angle can be calculated. Generally, the attitude adjustment data includes the attitude adjustment data corresponding to the elevation angle and azimuth angle of the mechanical scanning antenna.

[0127] Step S2323, driving the servo system to perform attitude adjustment control corresponding to the attitude adjustment data of the mechanical antenna, so as to keep tracking and radiating in the predetermined troposphere direction.

[0128] As mentioned above, the mechanical scanning antenna is equipped with a corresponding servo system for realizing the attitude adjustment control of the antenna. Specifically, according to the specific data of the elevation angle and azimuth angle in the attitude adjustment data, the mechanical antenna can be controlled to rotate a certain angle in the circumferential direction and / or adjust its elevation angle in the vertical direction, so as to realize the alignment of the beam radiation surface of the mechanical antenna according to the target direction angle to radiate signals to the troposphere 10.

[0129] According to the above embodiment, it is not difficult to understand that for the mechanical scanning antenna, the degree of change of the beam radiation surface of the antenna caused by the movement of the carrier can be determined in time with the help of the azimuth change information provided by the inertial navigation module, and then the target direction angle is referenced, and the attitude adjustment data is applied to the mechanical antenna by the servo system for corresponding attitude adjustment control, so that the mechanical antenna integrates the geographical position change and the azimuth change information of the carrier, correctly adjusts the orientation of the radiation surface, and ensures the stability of the communication link with the shore-based part 20.

[0130] On the basis of any embodiment of the present application, the antenna of the offshore scattering communication device is controlled to perform direction angle adjustment, please refer to Figure 8 , which comprises:

[0131] Step S2331, listening to obtain the azimuth change information generated by the inertial navigation module carried by the offshore scattering communication device;

[0132] As in the previous embodiment, for the phased array antenna of the offshore scattering communication device 410, it is also necessary to ensure that the antenna radiation surface radiates signals according to the correct target direction angle, and for this purpose, the movement of the carrier also needs to be combined to adjust the feed phase in time. Therefore, the inertial navigation module can be carried in the phased array antenna for obtaining the azimuth change information.

[0133] Step S2332, calculating the feed phase data of the phased array antenna of the offshore scattering communication device according to the azimuth change information and the target direction angle;

[0134] Different from the previous embodiment, for the phased array antenna, the principle is to change the feed phase to change the orientation of the antenna beam, so the feed phase data corresponding to the target direction angle should be set for the phased array antenna according to the azimuth change information and the target direction angle.

[0135] Step S2333, setting the phased array antenna according to the feed phase data, so that it keeps tracking and radiating in the predetermined troposphere direction.

[0136] Finally, setting the phased array antenna with the feed phase data can ensure that the antenna beam radiated by the phased array antenna is aligned with the predetermined troposphere 10 direction according to the target direction angle, and at the same time realizes the tracking of the signal scattered by the troposphere 10.

[0137] According to the above embodiments, for the phased array antenna, the feed phase data can be calculated according to the azimuth change information provided by the inertial navigation module more conveniently and quickly, and then the target direction angle of the beam of the phased array antenna is set according to the feed phase data. Such a setting process is performed at the electronic data level, is very efficient and fast, and can adapt to the case that the speed and azimuth of the vehicle change rapidly to ensure the stability of the communication link.

[0138] On the basis of any embodiment of the present application, in the step of converting the service data into wireless signals by the offshore scattering communication device and directing the wireless signals to radiate in the direction of the troposphere, the step includes:

[0139] In step S1310, the offshore scattering communication device detects the position change speed of the vehicle in which the offshore scattering communication device is located.

[0140] As described above, the offshore scattering communication device 410 can obtain global positioning information, and thus the position change speed of the vehicle can be determined according to the distance between the geographical positions determined by the global positioning information at different times, which can specifically reflect the driving speed of the vehicle.

[0141] In step S1320, it is determined whether the position change speed exceeds a preset threshold. When the position change speed does not exceed the preset threshold, the wireless signals are transmitted through the mechanical antenna of the offshore scattering communication device, otherwise the wireless signals are transmitted through the phased array antenna of the offshore scattering communication device.

[0142] A threshold, i.e., a speed threshold, can be preset for the position change speed of the vehicle, which is used to determine whether the vehicle is in a relatively high-speed motion state. When the position change speed of the vehicle does not exceed the speed threshold, it indicates that the vehicle is in a low-speed motion state, and at this time the mechanical antenna is enabled to transmit and receive wireless signals, and the phased array antenna is disabled. When the position change speed of the vehicle exceeds the speed threshold, it indicates that the vehicle is in a high-speed motion state, and at this time the phased array antenna is enabled and the mechanical scanning antenna is disabled to transmit and receive wireless signals.

[0143] According to the above embodiments, the mechanical scanning antenna or the phased array antenna is flexibly selected according to the motion speed of the vehicle, and different antennas are matched in different states of low speed and high speed, so that the advantages of different antennas can be utilized to ensure the stability of the communication link.

[0144] On the basis of any embodiment of the present application, after the offshore scattering communication device converts the service data into wireless signals and directs the wireless signals to radiate in the direction of the troposphere, please refer to Figure 9 , which includes:

[0145] In step S3100, the offshore scattering communication device receives wireless signals scattered in the direction of the troposphere from the offshore scattering communication device.

[0146] It is understandable that the antenna of the offshore scattering communication device 410 can receive the wireless signal of the shore-based scattering communication device at the same time when transmitting the wireless signal, and the wireless signal of the shore-based scattering communication device is also scattered by the troposphere 10.

[0147] Step S3200, converting the wireless signal into control data by the offshore scattering communication device, the control data containing the unique feature information of the terminal device as the receiver;

[0148] The shore-based scattering communication device can issue control instructions through its shore-based control device to generate control data, and then radiate the control data in the form of wireless signals to the troposphere 10 through the shore-based scattering communication device, which is scattered by the troposphere 10 and received by the offshore scattering communication device 410, and then the wireless signal is converted into control data by the offshore scattering communication device 410.

[0149] The control data can include corresponding control instructions and the unique feature information of the terminal device to which the control instructions act, so that the corresponding terminal device can receive the control of the control instructions in the control data according to the unique feature information.

[0150] Step S3300, broadcasting the control data by the offshore scattering communication device to the entire communication network through the main base station, to implement corresponding control on the terminal device in the communication network pointed by the unique feature information according to the control data.

[0151] After the offshore scattering communication device 410 obtains the control data, it is transmitted to the main base station 415, and the main base station 415 uses the broadcasting mechanism to broadcast the control data in the entire communication network 50, so that each base station can obtain the control data, and broadcast it directly to each terminal device connected to the switch through the switch, and each terminal device obtains the control data, detects whether the unique feature information in the control data belongs to itself, if yes, responds to the control instructions to accept and implement corresponding control, if not, discards the control data.

[0152] According to the above embodiments, the shore-based scattering communication device can receive the control data of the shore-based control device, and then transmit the control data to the entire communication network 50 of the offshore communication system through the troposphere 10, and finally to the target terminal device via the corresponding base station, so as to implement effective control on the terminal device, thereby facilitating remote operation of the offshore terminal device on land. In an exemplary application, the angle of a monitoring camera module serving as a terminal device can be remotely adjusted to adjust the angle of the pan-tilt head, so as to obtain video images at different angles. It can be seen that such operation can greatly improve the convenience of remote communication and improve the efficiency of information acquisition.

[0153] On the basis of any embodiment of the present application, before the step of acquiring, by the main base station, the service data of each base station in the communication network of the ad hoc network accessed by the main base station, the method comprises:

[0154] In step S1000, one of the base stations corresponding to the distribution on the plurality of carriers is set as a main base station, and the other base stations are set as slave base stations to form a communication network with the main base station. All base stations in the communication network are connected, and each base station is connected to at least two other base stations.

[0155] By pre-configuration, any base station on any carrier can be set as the main base station 415 in the communication network 50. When the configured base station is started, it can automatically set itself as the main base station 415. When the other base stations on other carriers are started, they can automatically set themselves as slave base stations 51 after detecting the existence of the main base station 415. Based on the MESH networking technology, the slave base stations 51 are self-organized with the main base station 415 to form the communication network 50.

[0156] Therefore, it is very convenient and efficient to apply the MESH self-organizing network technology to construct the communication network 50 on the sea surface.

[0157] On the basis of any embodiment of the present application, after the offshore scattering communication device converts the service data into wireless signals and directs the wireless signals to the troposphere, please refer to Figure 10 , comprising:

[0158] In step S1400, the shore-based scattering communication device receives the wireless signals scattered by the troposphere.

[0159] In the shore-based part 20, the antenna of the shore-based scattering communication device is responsible for receiving the wireless signals scattered by the offshore scattering communication device 410 after being emitted to the troposphere 10. As described above, the wireless signals can also be obtained by diversity technology.

[0160] In step S1500, the wireless signals are converted into service data and transmitted to the shore-based control device.

[0161] After the wireless signal is converted into corresponding service data, the service data can be transmitted to a shore-based control device connected to the shore-based scatter communication device. The shore-based control device can be a computer device or a similar centralized control center.

[0162] Step S1600, decoding and outputting the service data by the shore-based control device.

[0163] The service data is audio and video stream data in an embodiment. For the audio and video stream, each audio and video stream is directly decoded and rendered to a graphical user interface of a computer device for display, so that the monitoring video on the sea surface can be obtained on land.

[0164] According to the above embodiment, it can be understood that the shore-based control device can obtain the service data of the terminal device in the communication network 50 on the sea surface through the remote communication system of the application, thereby serving the application purpose of remote monitoring, and making the remote communication system of the application more practical.

[0165] On the basis of any embodiment of the application, the shore-based scatter communication device receives the wireless signal transmitted through the convection scattering, including:

[0166] Step S1410, receiving the multiple sub-signals of the wireless signal by the antenna of the shore-based scatter communication device.

[0167] As described above, the shore-based scatter communication device and the offshore scatter communication device 410 can use one or more diversity techniques to implement signal transmission. In this case, the shore-based scatter communication device can receive multiple sub-signals transmitted by the diversity technique through its antenna.

[0168] Step S1420, converting the multiple sub-signals into the same wireless signal by using a preset diversity algorithm, the diversity algorithm being any one of a frequency diversity algorithm, a spatial diversity algorithm, and an angle diversity algorithm.

[0169] Corresponding to the multiple sub-signals, each sub-signal can be calculated and converted by using a corresponding diversity algorithm according to the corresponding diversity technique, so as to obtain the same wireless signal. The wireless signal is an effective signal carrying the service data, and the service data transmitted by the offshore scatter communication device 410 can be obtained on this basis.

[0170] It can be understood that, according to the diversity technique used, the diversity algorithm can be any one of a frequency diversity algorithm, a spatial diversity algorithm, and an angle diversity algorithm.

[0171] According to the above embodiments, it can be known that the remote communication system of the present application can further obtain better signal transceiving effect by means of diversity technology, thereby ensuring stable communication between the shore-based part 20 and the offshore part 40.

[0172] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments of the present application can be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. When the program is executed, it can include the processes of the above-mentioned embodiments of the method. The storage medium can be a computer readable storage medium such as a magnetic disc, an optical disc, a read-only memory (ROM), or a random access memory (RAM).

[0173] In summary, the present application provides a solution for transmitting service data in a communication network on the sea to the shore, which can realize ultra-long distance high-bandwidth communication between the sea and the shore and has wide application value.

Claims

1. An offshore business data transmission method, characterized by, The application comprises: one of the corresponding distributed base stations on the plurality of carriers is set as a master base station, and other base stations are set as slave base stations to form a communication network with the master base station, all base stations in the communication network are connected, and each base station is connected with at least two other base stations; the master base station acquires service data from each base station in the communication network of the ad hoc network accessed by the master base station, each base station is deployed offshore, including the master base station and the slave base station in wireless communication with the master base station, and each base station is scattered and deployed on the plurality of carriers; the master base station transmits the service data to an offshore scattering communication device deployed on the same carrier as the master base station by wire; the offshore scattering communication device converts the service data into a wireless signal and radiates it in the direction of the troposphere, including detecting the position change speed of the carrier on which the offshore scattering communication device is located by the offshore scattering communication device; judging whether the position change speed exceeds a preset threshold, and when the position change speed does not exceed the preset threshold, the wireless signal is transmitted through the mechanical antenna of the offshore scattering communication device, otherwise, the wireless signal is transmitted through the phased array antenna of the offshore scattering communication device.

2. The off-shore business data transmission method of claim 1, wherein, Before the offshore scattering communication device converts the service data into a wireless signal and radiates it in the direction of the troposphere, it includes: the offshore scattering communication device acquires global positioning information of the offshore scattering communication device; the offshore scattering communication device determines the target direction angle corresponding to the directional radiation of the antenna of the offshore scattering communication device according to the global positioning information of the offshore scattering communication device and the global positioning information of the offshore scattering communication device; the offshore scattering communication device controls the antenna to perform direction angle adjustment, so that the beam generated by the antenna radiates in the direction of the troposphere according to the target direction angle.

3. The method of claim 2, wherein, In the step of controlling the antenna of the offshore scattering communication device to perform direction angle adjustment, it includes: the offshore scattering communication device detects the reference signal transmitted by the offshore scattering communication device, and determines whether the communication link between the offshore scattering communication device and the offshore scattering communication device reaches a stable state according to the reference signal; when the communication link does not reach a stable state, the offshore scattering communication device controls the antenna to perform direction angle adjustment.

4. The method of claim 2, wherein, The offshore scattering communication device controls the antenna to perform direction angle adjustment, including: listening to the azimuth change information generated by the inertial navigation module carried by the offshore scattering communication device; calculating the attitude adjustment data of the mechanical antenna of the offshore scattering communication device according to the azimuth change information and the target direction angle; driving the servo system to perform attitude adjustment control corresponding to the attitude adjustment data of the mechanical antenna, so as to keep tracking and radiating in the predetermined direction of the troposphere.

5. The method of claim 2, wherein, The offshore scattering communication device controls the antenna to perform direction angle adjustment, including: listening to the azimuth change information generated by the inertial navigation module carried by the offshore scattering communication device; calculating the feed phase data of the phased array antenna of the offshore scattering communication device according to the azimuth change information and the target direction angle; setting the phased array antenna according to the feed phase data, so as to keep tracking and radiating in the predetermined direction of the troposphere.

6. The method of claim 1, wherein, After the off-shore scatter communication device converts the service data into wireless signals and radiates the signals in the direction of troposphere, the method comprises: The off-shore scatter communication device receives the wireless signals scattered from the on-shore scatter communication device in the direction of troposphere; The off-shore scatter communication device converts the wireless signals into control data, which contains the unique feature information of the terminal device as the receiver; The off-shore scatter communication device broadcasts the control data to the whole communication network through the main base station, so as to control the terminal device according to the unique feature information in the communication network.

7. The off-shore business data transmission method according to any one of claims 1 to 6, characterized in that, After the off-shore scatter communication device converts the service data into wireless signals and radiates the signals in the direction of troposphere, the method comprises: The on-shore scatter communication device receives the wireless signals scattered in the direction of troposphere; The on-shore scatter communication device converts the wireless signals into service data and transmits the service data to the on-shore control device; The on-shore control device decodes and displays the service data.

8. The off-shore business data transmission method of claim 7, wherein, The on-shore scatter communication device receives the wireless signals scattered in the direction of troposphere, the method comprises: The antenna of the on-shore scatter communication device receives multiple sub-signals of the wireless signals; The multiple sub-signals are converted into the same wireless signal by using a preset diversity algorithm, which is any one of frequency diversity algorithm, space diversity algorithm and angle diversity algorithm.

9. An off-shore communication device, characterized in that The method comprises the off-shore scatter communication device and the main base station, which are assembled on the same carrier, and the main base station is used to form a communication network with multiple slave base stations on other carriers, wherein the main base station receives service data generated by each slave base station and transmits the service data to the off-shore scatter communication device, and the off-shore scatter communication device converts the service data into wireless signals and radiates the signals in the direction of troposphere, and the off-shore communication device applies the off-shore service data transmission method as claimed in any one of claims 1 to 8.

10. An off-shore communication device according to claim 9, characterized in that, The carrier is any one of ship deck, top of ship bridge, tower of offshore wind farm, and floating platform / building arranged on the sea surface surrounded by multiple towers. The carrier is any one of ship deck, top of ship bridge, tower of offshore wind farm, and floating platform / building arranged on the sea surface surrounded by multiple towers.

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