116 results about "Shore station" patented technology

The invention discloses an ocean submerged buoy system. In the system, buoys are connected with an underwater winch through a communication mooring cable; a plurality of profile measuring instruments are equidistantly arranged at the part of the communication mooring cable between the buoys and the underwater winch, which is adjacent to the buoys; the underwater winch is fixed on a main buoy body; a target detecting system and an ADCP (acoustic Doppler current profiler) are both arranged on the main buoy body; an anchor mooring mechanism comprises a glass floating ball, a response releaser and a ballast anchor which are connected in series through anchor chains; a control center controls the buoy system to regularly float out of the ocean surface and dive into the ocean; the target detecting system detects movable targets; when a movable target enters into a preset range, the control center controls the buoy system to dive into the ocean; and when floating out of the ocean surface, the buoys transmit various received data to a ground shore station. By the ocean submerged buoy system disclosed by the invention, the ocean detected data are transmitted in real time; and the influencestormy waves and other factors on the service life of the buoys is avoided.

The invention belongs to the field of marine environment detection equipment, and particularly relates to a real-time transmission multivariate vector hydrophone array subsurface buoy system which acquires and stores marine environment noise of different depths. The real-time transmission multivariate vector hydrophone array subsurface buoy system comprises a vector hydrophone array, a watertight electronic storehouse, a communication cable, a buoy, an acoustic releaser and an anchor block. The vector hydrophone array is vertically arranged, the tail part is in the free state and the number of the array elements is freely adjusted according to the depth. The vector hydrophone array can simultaneously measure the marine environment information of different depths. As for the real-time performance, the acquired data can be uploaded to a shore station in real time to be processed with no requirement for waiting for recycling equipment to perform data recycling processing.

The invention provides a deep-sea observing buoy system based on inductive coupling and satellite communication techniques and belongs to the technical field of an ocean buoy platform. The deep-sea observing buoy system comprises a data collecting control satellite communication subsystem, a shore-station satellite communication subsystem, a power supply subsystem, a buoy subsystem and a mooring subsystem. A principle of a transformer is adopted by the deep-sea observing buoy system; an underwater plastic coated steel cable is taken as an iron core of the transformer, an inductive coupling connector is taken as a primary coil, the coils in various data sensors under the water are taken as secondary coils, an inductive coupling module is taken as a modulator-demodulator, and a half-duplex communication mode is established by a data-acquiring control satellite communicator in a broadcast mode through various sensors under the water, so that the real-time collection for underwater data is realized. Meanwhile, a mature satellite communication system is selected, a dial-up service supplied by the satellite communication system is utilized to establish a real-time, large-data-volume and stable communication link between a deep-sea buoy and a user data center, and the real-time transmission for deep-sea observed data is realized.

The invention discloses a timed satellite communication submerged buoy, which comprises a plastic covered steel cable in vertical arrangement, wherein a first sensing coupling temperature-salinity chain, a second sensing coupling temperature-salinity chain, a main floating body and a deep ocean current and temperature-salinity measuring unit are arranged on the plastic covered steel cable; an acoustic Doppler current profiler, satellite communication buoys, a timed release device and a data and control electronic cabin are arranged on the main floating body; and submerged buoy measuring instruments are connected with the data and control electronic cabin through cables. The timed satellite communication submerged buoy has the advantages that one or a plurality of satellite communication buoys are arranged on the main floating body of the submerged buoy; observational data of submerged buoy instruments are transmitted to the satellite communication buoys under water through cables or in a cableless mode; when the set time is reached, the satellite communication buoys automatically float up to the water surface; and stored data is sent to a shore station through satellites, so that ocean observational data can be enabled to be obtained in time; the work state of the submerged buoy can be known; and huge help is realized on the reliability, the stability and the like of the submerged buoy.

The invention relates to a real-time transmission undersea buoy device, to timely solve that the data measured in the water by the undersea buoy is transmitted to a shore station, and the marine observed data and information can be obtained without recovery, (a) the main floating body system (b) anchored mooring and recovery system, and (c) the surface buoy system. The invention solves that marine measured data cannot be obtained in a timely manner in the past.

The invention relates to a section measuring buoy monitoring system comprising a buoy, an anchor chain, an anchor, a power supply system, a protection system, a data acquiring and transmitting system, a sensor system, a winch and a shore station receiving system. A water quality sensor and a pressure sensor are installed in a hanging cage; the sensor system monitors the site water and water surface meteorological data in real time; the data acquiring and transmitting system acquires, processes and transmits the monitoring data of the sensors to the shore station receiving system in a GPRS / CDMA / satellite wireless transmission manner. The section measuring buoy monitoring system has the advantages that data are acquired in real time, water ecological environment parameters are acquired in real time, and the real-time online monitoring of the water ecological environment is implemented; by means of the section measuring buoy monitoring mode, the water quality parameters of the water surface can be monitored, the longitudinal water quality parameters can be monitored, measurement can be performed in manners of determined depth and time and multiple points, the water environment change can be grasped in real time, and significance is provided for water monitoring.

The invention discloses an unmanned-ship-towed underwater magnetic detection system. The unmanned-ship-towed underwater magnetic detection system comprises an unmanned ship, a towed body connected with the unmanned ship by virtue of a towrope as well as a control system used for data processing and automatic control of the magnetic detection system; the unmanned ship is a water surface platform ofthe magnetic detection system and comprises a ship body of the unmanned ship, a winch system arranged at the tail of the unmanned ship, a detection system arranged at the head of the unmanned ship aswell as a communication system used for real-time communication between the unmanned ship and a shore station; and the winch system is used for controlling underwater movement of the towed body by laying and recycling a towrope and comprises a motor, the towrope used for towing the towed body, a winch used for coiling the towrope thereon as well as a mounting bracket. The unmanned-ship-towed underwater magnetic detection system disclosed by the invention has the beneficial effects that the magnetic detection system utilizes an underwater magnetic detection location technology, the unmanned ship on water is taken as a mother ship towing body, the towed body carries a three-component magnetometer array, and near-bottom target detection and location is performed.

The invention discloses a fault diagnosis system for submarine observation network nodes, which comprises an energy fault diagnosis subsystem, a fault diagnosis subsystem inside a node cabin body, a fault diagnosis subsystem outside the node cabin body, a node main control circuit board and a shore station. The node main control circuit board is respectively connected with the energy fault diagnosis subsystem, the fault diagnosis subsystem inside the node cabin body and the fault diagnosis subsystem outside the node chain body, acquires running state detection signals, and is connected and communicated with the shore station. The fault diagnosis system for the submarine observation network nodes is specially designed for a submarine observation network node system, can finish conventional fault diagnosis and maintenance tasks of the submarine observation network nodes well, shortens the fault diagnosis time required by the submarine observation network nodes, ensures normal running of the submarine observation network nodes to the most extent, and greatly reduces the maintenance cost of the submarine observation network nodes.

The invention relates to a wireless sonar system based on underwater acoustic communication. The system includes an underwater submersible buoy, a water-surface floating-body module and a display andcontrol module (9). The underwater submersible buoy is arranged at the bottom of water. The water-surface floating-body module is arranged on a surface of the water. The display and control module (9)is arranged on a ground shore station. The display and control module (9) sends an instruction to the underwater submersible buoy through the water-surface floating-body module, working status of underwater sonar (3) installed at the underwater submersible buoy is arbitrarily changed, underwater-sonar data are periodically sent to the display and control module (9), and display is carried out.

The invention provides an autonomous underwater vehicle intelligent monitoring system for submarine cable inspection, and a combined navigation method. The autonomous underwater vehicle intelligent monitoring system comprises an autonomous underwater vehicle, a water surface floating platform and a shore station monitoring system. A combined navigation system comprises four navigation subsystems of an MINS, a GM, a DVL and a Visual subsystem. The autonomous underwater vehicle is adopted as an intelligent monitoring system platform to achieve intelligence of submarine cable inspection; the small water surface floating platform is adopted as an information transmitting transfer part and used for providing secondary electric energy supplying for the autonomous underwater vehicle, thus the underwater cruising ability of the autonomous underwater vehicle is improved greatly, and the continuous inspection operating time of the autonomous underwater vehicle is prolonged greatly; and a combined navigation positioning mode of the MINS / the DVL / the Visual subsystem / the GM is adopted, comprehensive obtaining of navigation information such as the posture, speed and position of the autonomous underwater vehicle is achieved, data information effective integration of all the navigation subsystems is achieved through a federal filtering technology, the precision of the navigation positioning information is improved, and the technical requirements for the low cost, miniaturization, low power consumption, convenient mounting and the like of the monitoring system are met.

The invention discloses a real-time monitoring apparatus for ocean internal waves. The real-time monitoring apparatus consists of an auxiliary floating body, a main floating body and a temperature measurement device, wherein ocean temperature parameters in vertical direction are measured through temperature-cascading chain between two underwater mooring platforms of the auxiliary and main floating bodies of the real-time monitoring apparatus for ocean internal waves. According to the real-time monitoring apparatus for ocean internal waves, a hardware circuit comprises a single chip, a calendar clock circuit, an A / D conversion circuit, serial communication circuits, an optical coupling circuit, a memory, a depth sensor, a drive circuit and a power supply module, the real-time monitoring apparatus for ocean internal waves in vertical direction can be measured through the temperature-cascading chain between the auxiliary and main floating bodies, besides, dynamic environment parameter monitoring for the ocean internal waves is realized through measurement of ocean currents by Doppler current meter, and satellite communications buoy above water simultaneously transmits related and real-time parameters back to shore stations.

The invention discloses a synchronous test system based on a tame rubidium clock and a method thereof for increasing synchronization precision, which belong to the technical field of land-based positioning and wireless communication. The synchronous test system comprises a main base station synchronizer and a secondary base station synchronizer, wherein a 10 MHz clock signal of the tame rubidium clock and a stable PPS (pulses per second) signal which are subjected to taming are given respectively by the main base station synchronizer and the secondary base station synchronizer, and the two signals are connected with an AIS (Automatic Identification System) shore station. The existing AIS shore station is simply upgraded by utilizing the synchronous test system, so that the AIS shore station has high synchronization precision, and higher synchronization precision can be kept for a long time in the condition that a GNSS (Global Navigation Satellite System) signal disappears, and a foundation is laid for independent positioning of an AIS.

The invention relates to a method for positioning multiple beacons in real time underwater, and belongs to the technical field of positioning multiple moving objects in real time underwater. The method can solve a problem of real-time positioning for multiple beacons underwater. The method is characterized by comprising six water surface receiving buoys forming a regular hexagon and a water surface transmitting and receiving main buoy located at the middle, wherein the buoys form a positioning area and realize synchronization in time through a DGPS (Differential Global Positioning System) synchronization technology. A positioned object carries a responsive acoustic positioning beacon and enters the positioning area, the central buoy positioning primitive transmits a distance measurement instruction which contains address information, addressed positioning beacons receive an instruction signal and send code return signals which are different in frequency, each receiving sub-primitive receives the code return signals, performs signal separation and multi-path distance measurement through an internal multi-path frequency selection circuit, and transmits distance measurement information and location information thereof to shore station platform through a high-frequency data transmission radio, and the shore station can simultaneously calculate the real-time three-dimensional locations of multiple positioning beacons according to a three-ellipse intersection algorithm.

The invention relates to a seabed in-situ real-time observation system and method, which are used for achieving ocean in-situ long-term real-time multi-parameter observation. The seabed in-situ real-time observation system comprises a seabed observation master control system, a sea surface relay transmission buoy system, a remote monitoring system, an underwater acoustic communication machine anda satellite communication machine, wherein the seabed observation master control system and the sea surface relay transmission buoy system carry out wireless communication through the underwater acoustic communication machine; the wireless communication is carried out between the sea surface relay transmission buoy system and the remote monitoring system through the satellite communication machine. According to the system, observation can be carried out in different modes such as shore station remote real-time monitoring, ship-borne remote real-time monitoring, ship-borne operation real-time monitoring and the like according to actual application requirements, different ocean sensors can be mounted in a seabed observation platform based on ocean observation and engineering needs, thereby transmitting to the remote monitoring system through the underwater acoustic communication and the satellite communication, so that the multi-parameter in-situ long-term real-time observation of the observation point is achieved, and meanwhile, the networking type observation can be carried out.

The invention discloses an alarming and monitoring system and method for a sea cucumber culture farm with artificial reefs. The monitoring system an underwater monitoring unit array, a water surface monitoring center installed on a buoy in the culture farm or a boat body, and a shore station receiving terminal. With the system and method, safety of the culture farm can be guaranteed and the user losses can be reduced. When abnormal situations like stealing of e sea cucumbers cultured with artificial reefs occur, the alarming and monitoring system can carry out alarming rapidly and the user can check the abnormal situation, thereby effectively reducing the losses of the farmer; and the information transparency of the culture farm is improved. With real-time transmission of correlated sea water parameters containing the water temperature and dissolved oxygen, the user can know the situation of the culture frame better.

The invention relates to an offshore platform type integrated system, and belongs to the technical field of ocean equipment. The system mainly comprises a sea-based floating platform which is connected to a communication replay system, an offshore lifesaving system, a smart culture net cage, an energy system, a steel structure offshore floating structure, a monitoring and theft prevention system and an environment monitoring system through cables, and is connected to a receiving shore station through wireless communication. The receiving shore station is externally connected to a power supply apparatus. The invention has the following beneficial effects: the system can be conveniently provided with all kinds of supervising and monitoring devices, can realize long-time online monitoring of high-resolution videos, and has sea level theft prevention video monitors; offshore relay communication devices can be automatically oriented, and guarantee long distance and reliable transmission; the system is stable and has multi-point expansion integration capability, can provide big data analyzing function, has a high data timeliness, reduces maintenance cost so as to protect personnel safety, and complete and reliable data; the system can substantially lower integrated cost, can provide leisure fishing function, and increases social benefits and economic benefits.

The invention discloses an intelligent marine radioactive in-situ monitoring anchor system buoy, belonging to the radiation detection technical field. The buoy system consists of a buoy body, a detector system, a data acquisition module, a communication module, a power supply module, a safety module, an anchor module, a sensor system and a shore station receiving module. The marine radioactivity monitor technology is expanded on the basis of the marine anchor buoy, the fixed-point, long-term, real-time and in-situ measurement of the marine radioactivity is realized through the intelligent adjustment of the radioactivity measuring period and the count mode, the monitoring means of the coastal nuclear facilities or the offshore fixed nuclear facilities are enriched, and the radioactivity monitoring capability is effectively improved.

The invention discloses a shore-based guarding and management system of a VHF band data exchange system. The shore-based guarding and management system of the VHF band data exchange system is composedof a central server, a data storage server, a man-machine management server, a man-machine management computer, a time service device, an alarm device and a network device, and the central server canperform maritime business management, system state management and time management. The time service device generates time service data, sends the time service data to the central server, the data storage server, the man-machine management server and a plurality of accessed VDES shore stations to perform time synchronization; the central server can receive maritime business application data, parsethe data and then send the data to the data storage server for storage, and can send the data to the man-machine management server to perform real-time display. The system provided by the invention can be used as a shore-based management center of the VHF VDES, can perform management configuration and operating maintenance for the whole VDES communication network, and supports service operation of the VDES.

The invention relates to a fixed-point multi-layer marine environment profile monitoring system, which mainly comprises: (1) a buoy system, (2) signal / power supply cables, (3) a seabed base, (4) an anchor system, (5) a multi-parameter profile observation chain and (6) float balls arranged on the (5) multi-parameter profile observation chain, wherein the (5) multi-parameter profile observation chain can observe water quality parameters such as conductivity-temperature-depth (CTD), turbidity, chlorophyll and the like, the depths of different layers of the (5) multi-parameter profile observationchain are designed according to monitoring requirements, the (5) multi-parameter profile observation chain is connected to the seabed base by the cable, the buoy system (1) contains a meteorological sensor, a data acquisition and storage system, a remote communication system, an alarm and positioning system, a solar power supply system and the like, the hollow middle portion of the buoy reserves the space for transmitting the data collected by the (3) seabed base and the (5) multi-parameter profile observation chain into the data acquisition and storage system in the buoy system through the underwater signal cable and sending back to the shore station so as to complete the data display and analysis; and the system is anchored by the three-anchor system with the equilateral triangle shape and the seabed base, and can achieve the long-term continuous profile marine element monitoring.

The invention belongs to the technical field of ship state monitoring, and discloses a ship state remote monitoring system and method based on cloud service and big data. The ship state remote monitoring system comprises a ship real-time monitoring module, a ship data acquisition module, a data preprocessing module, a situation awareness module, an autonomous driving navigation module, a main control module, a conduction module, a ship shore communication module, a remote monitoring and management module, a ship information management module, a ship shore station VDR module, a KPI auxiliary analysis module, a remote diagnosis and maintenance module and a display module. Personalized services can be provided for users, KPI auxiliary analysis is provided for the users, equipment state and alarm notification services are provided for shipholders, healthy operation of equipment is guaranteed, ship monitoring on shore bases is achieved, energy consumption, navigation routes, equipment states, operation specifications and other aspects of ships are effectively managed, and the ship navigation efficiency and safety are improved.

The invention discloses a wave and sea level measuring method for deep sea and high sea based on a satellite-based differential enhanced technology. By taking a Beidou system as a primary platform which is matched with a GPS (Global Positioning System), a fused localization method is formed by adopting the satellite-based differential enhanced technology, so that wave and sea level measuring work of deep sea and high sea in a global range is realized. The method comprises the following technical steps of: receiving a satellite positioning signal and a satellite-based differential signal; calculating three-dimensional position data of a satellite float; separating wave data and sea level data; calculating the wave data; calculating the sea level data; and transmitting the wave data and sea level data to a shore station data receiving system. By mounting a Beidou / GPS satellite positioning receiving card board and a satellite-based differential signal receiving module, waves and sea levels in the deep sea and high sea in the global range can be measured. The method has the characteristics of being high in measuring precision, far in working distance, wide in coverage, long in cruising duration and the like.

The invention provides a method for first-time filling of gas of a non-LNG pre-cooling ship. A gas tank is arranged on the ship, and a pump pond and a liquid gasifier are included; the filling method comprises the following steps: S1, tank cooling, liquid nitrogen is injected into the liquid gasifier, the liquid gasifier gasifies liquid nitrogen into nitrogen at the temperature of -160 DEG C to -150 DEG C, and the nitrogen enters the gas tank through a pipeline to be subjected to tank cooling; S2, purging, the LNG is injected into the liquid gasifier, the liquid gasifier gasifies LNG into NG, the NG enters the gas tank through a pipeline to perform purging, and nitrogen in the gas tank is purged away; thirdly, filling, the LNG is injected into the pump pond, and transshipped to the gas tank through a pipeline to be subjected to filling. According to the method, operation is easy and effective, emissions of NG in the operation process can be reduced, the method is safe, and environment-friendly, resource waste is avoided, and shore station parking is avoided.

The invention relates to sea wave and sea current observation and discloses a surface layer wave current moving observation system which is provided with an observation platform and a shore station data transceiving platform. The observation platform is provided with a buoy, a temperature sensor, a battery pack, a solar panel, a beacon light, a battery pack supporting frame, an instrument cabin and a balancing weight, the buoy is composed of an upper end cap and a lower end cap, the beacon light is arranged on the outer surface of the upper end cap of the observation platform, the temperature sensor is arranged on the outer surface of the lower end cap, the solar panel and the instrument cabin are arranged in the buoy, the battery pack is arranged at the bottom of the instrument cabin, the battery pack supporting frame is arranged at the bottom of the battery pack, the balancing weight is arranged at the bottom of the battery pack supporting frame, and a GPS (global positioning system) receiver, an inertial measurement unit, a communication module and a data transceiving circuit are arranged in the instrument cabin; a receiving antenna of the GPS receiver is arranged on the instrument cabin, a receiving antenna of the communication module is arranged on the instrument cabin, the GPS receiver, the inertial measurement unit, the temperature sensor and the communication module are respectively connected with the data transceiving circuit, and the observation platform communicates with the shore station data transceiving platform through the communication module.

The invention discloses a water surface UUV (unmanned surface vessel) recycling device based on an electromagnetic mushroom head engage switch. The water surface UUV recycling device comprises a recycling control module, a rotary swing arm device, a suspending telescopic rod, a hydraulic transmission device, a spring and an electromagnetic engage switch. The recycling control module is arranged ina cabin of a USV and can achieve remote communication with a shore station, a base of the rotary swing arm device is fixed to a deck of the USV through screws, the top of the rotary swing arm devicemakes the rotary swing arm device be fixed to one end of the suspending telescopic rod through a connection rod casing, one set of hydraulic transmission device used for controlling stretching and contracting of a cantilever telescopic rod is arranged in the suspending telescopic rod, the direction of the cantilever telescopic rod is regulated through self rotation of the rotary swing arm device,and the other end of the cantilever telescopic rod is welded to the electromagnetic engage switch through the spring. The invention further discloses a water surface UUV recycling method. The water surface UUV recycling device and method have the beneficial effects that the device and method can realize simple, convenient and firm butt joint, and the recycling efficiency and the success rate are greatly improved.

The invention provides a seabed in-situ monitoring buoy system, a seabed in-situ monitoring system and a seabed in-situ monitoring method, and belongs to the field of marine environment monitoring. The seabed in-situ monitoring buoy system comprises a buoy device and an underwater fixing device. The buoy device comprises a communication antenna, a buoy upper barrel body and a buoy lower barrel body. The communication antenna is fixedly installed on the buoy upper barrel body, the buoy upper barrel body is connected with the buoy lower barrel body in a sealed mode, and the buoy device is connected with the underwater fixing device through a cable and a mooring rope. According to the seabed in-situ monitoring buoy system, real-time seabed in-situ high-definition video monitoring and water quality monitoring can be effectively achieved, in-situ high-definition video data and undisturbed in-situ water quality monitoring data can be transmitted to a receiving shore station in a low-cost mode under the severe sea condition, the laying cost is low, and the practicability is high.

The invention discloses a long-distance advanced anti-diving early warning array and a system based on distributed optical fiber acoustic wave sensing. The system comprises fixing units composed of anchors, subsurface buoys and mooring ropes; wherein sensing optical cables continuously extend vertically and horizontally along the fixing units to form a two-dimensional detection array plane on an offshore bottom layer, so that two-dimensional arrangement of the sensing optical cables in an xz plane in an approximate square wave signal manner is realized, and the system further comprises a seabed workstation, a buoy and a signal transmission cable; the reflected light signal of the sensing optical cables is demodulated to obtain the orientation, movement speed and direction information of adetection target, and the information is sent to the buoy and then sent back to a ground shore station through a satellite. According to the invention, the distributed optical fiber sound wave sensingtechnology is combined with the anti-submarine detection requirement; the all-fiber long-distance distributed underwater acoustic detection real-time early warning system laid along the border line of the sea is provided, early warning can be conducted on submarines invading the marine boundary of China in advance, the positions of the submarines can be accurately positioned in real time, the anti-diving detection cost is reduced, the anti-diving operation efficiency is improved, and the marine rights and interests of China are protected.

The invention discloses an active-frequency control method and system for flexible direct-current grid connection of a communication-free offshore wind plant. Firstly, a frequency signal of a shore alternating current power grid access point is obtained, the frequency signal is converted into a generated direct current voltage to serve as a direct current voltage reference value of a shore converter station, and the shore converter station controls an output direct current voltage value to be equal to the direct current voltage reference value; the offshore converter station detects a direct-current voltage value and converts the direct-current voltage value into frequency to obtain a frequency reference value; the offshore converter station controls the frequency of the offshore common coupling point to be equal to the frequency reference value; the offshore wind farm acquires a second frequency signal of the offshore power grid; and active frequency modulation is performed on the offshore wind power based on the frequency reference value and the second frequency signal. Thus, an active-frequency control function of offshore wind power to an on-shore alternating current system through flexible direct access can be realized, frequency modulation of the alternating current system is supported, inter-station communication between a flexible direct shore station and an offshore station is not needed, communication between a flexible direct current and an offshore wind power plant is also not needed, the control reliability is improved, and the application range is widened.

The invention discloses a tide level detection system and method based on buoy communication. The system comprises an undersea underwater unit and a buoy unit which are connected through a cable, and further comprises a shore station receiving unit. The underwater unit comprises an installation barrel installed on a cement heavy block and internally provided with a tide level instrument. The installation barrel is provided with two connection nozzles. A power source and a communicator buoy are arranged in the buoy unit. The shore station receiving unit comprises a data receiver with a receiving antenna. The method comprises the steps that a zero point reference face is selected on a shore, horizontal zero point calibration is carried out, and tide level detection is carried out. By the adoption of the buoy communication method, data collected by the tide level instrument are transmitted to the shore station receiving system through the buoy, the problem that a tide gauge well cannot be built on an island is effectively solved, and a new method is provided for island tide level detection.

The present invention relate to the field of communications technology, a multi-mode communication system is provided, includes a multi-mode communication control center, multiple multimode communication clients, a plurality of berths and a plurality of berths, each shore station comprises a shore station communication system device and a shore station multi-mode communication controller, each berth comprises a berth communication system equipment and a berth multi-mode communication controller, wherein the multi-mode communication control center is connected with a multi-mode communication client and a multi-mode communication controller through an Internet network, and the shore communication system equipment and the berth communication system equipment are intercommunicated with each other through wireless communication; the shore station multi-mode communication controller and the ship station multi-mode communication controller are used for converting the communication control protocol of the communication system equipment to the standard control protocol. The invention can realize dynamic grouping and interference avoidance of a plurality of communication system equipments and communication equipments on one platform, and can be widely applied in the communication field.

The invention belongs to the field of ship navigation, and relates to an automatic identification system (AIS) position information anti-spoofing method based on a Ranging Mode (R-mode). By transplanting the ranging technology of the AIS ship station to the AIS shore station, R-mode ranging and positioning functions are added for the AIS shore station, and the correctness of the location information sent by the AIS ship station is detected through two steps of a distance detection mode automatically completed by the shore station and a position detection mode completed by the network center ofthe AIS shore station to realize the anti-spoofing function of the AIS location information, thereby preventing malicious spoofing, effectively protecting the navigation safety of ships, and improving the water safety supervision capability.