44 results about "Maritime safety" patented technology

A fall detection and recovery system includes cameras positioned around a perimeter of a vessel. The system analyzes video from the cameras to detect a falling object from the vessel and records a geolocation of the vessel at a time of falling of the object. The system applies environmental readings to evolve a recovery location for the falling object from the time of falling to a present time.

The invention discloses a maritime safety information broadcasting system based on Beidou navigation. The system comprises an information broadcasting platform. The information broadcasting platform is electrically connected with a Beidou satellite command aircraft. The Beidou satellite command aircraft is wirelessly connected with a Beidou satellite. The Beidou satellite is wirelessly connected with a Beidou ship-borne terminal. The Beidou ship-borne terminal comprises a shell, a Beidou location module, a Beidou communication module, a microprocessor, a controller, a data memory, a microphone, a loudspeaker and a display screen. The microphone, the loudspeaker and the display screen are mounted on a front panel of the shell. The maritime safety information broadcasting system based on Beidou navigation has the advantages of small investment scale, convenient networking, short construction period and high operation safety reliability.

The invention discloses a marine fishery maritime safety command system. The system is based on a marine fishery AIS collision system, a Beidou navigation system and an ocean radio system, and provides functions such as account management and password modification for local users, update of basic data of ships, chart data update, export of chart pictures, print of screen charts, operation video recording, system parameter setting, query and statistics, video surveillance playback for ships; specific requirements for chart are displayed to perform ship monitoring, notification, alarm and shortmessages are only sent to a monitored ship, and playback of the ship tracks and data query can be achieved; and alarm rescue can customize alarm area drawing and can customize alarm area management, weather and typhoon information display.

The invention discloses an on-sea intermediate frequency digital broadcasting system, comprising: an information management sub-system used to collect and control various kinds of on-sea security information, to create the information files requiring to be transmitted, and to create the emission sequence according to the priorities and the repetitive requirement of the files; an offshore broadcasting and transmitting station to receive and convert the information files from the information management sub-system into an OFDM signal and broadcasting the RF signal to a ship through antenna radiations; and a ship mounted receiver to receive wireless electric signals, to modulate the OFDM signal, to re-create the information files, and according to the application classification of the information files, to display the information contents or provide the information files to a designated device. The information management sub-system and the offshore broadcasting and transmitting station are connected through an offshore network; the offshore broadcasting and transmitting station is connected with the ship mounted receiver through a wireless transmission channel. The on-sea intermediate frequency digital broadcasting system proposed by the invention is able to make the ship information system and the device connected in a seamless manner; and therefore, the broadcasting and transmitting efficiency is high; the coverage is wide and the requirement for broadcasting and transmitting various kinds of MSI data can be fulfilled.

The invention discloses a maritime multi-band and multi-system life-saving radio station and a life-saving method thereof. The radio station comprises an enclosure and the following components arranged in the enclosure: a Beidou module for alarming and / or short message communication and / or positioning in the sea at a long distance; a 9GHz SART module for maritime position display; a VHF / UHF voicemodule for radio voice communication for sea-to-air medium and short visual range; an LED flash module for maritime nighttime display; a main control unit for controlling each module; a battery pack for supplying power to each module and the main control unit respectively. Through a multi-band and multi-system combination, the portable global maritime peril and safety communication integration technology is achieved within a portable structure range, and the limitation that the conventional peril life-saving technology can only perform a single function is broken, so that the life-saving success rate is improved and the reliability of maritime safety is improved.

The invention discloses an underground fixed liquid level testing device. The underground fixed liquid level testing device comprises an underground instrument and a ground control box, wherein the underground instrument mainly comprises a sounding device and a data acquiring device; the ground control box mainly comprises a ground computer terminal and a nitrogen bottle; the nitrogen bottle is connected to the sounding device of the underground instrument through a gas pipe for sounding in a well; the data acquiring device comprises a sound sensitive sensor, a pressure sensor and a core control circuit arranged in the well; the sound sensitive sensor and the pressure sensor are connected with the core control circuit; the core control circuit receives and stores data acquired by the sound sensitive sensor and the pressure sensor; and the core control circuit is connected with the ground computer terminal through an optical cable. The underground fixed liquid level testing device can realize continuous testing of a liquid level in an oil well, can satisfy the requirements of maritime safety production, and can solve the current situation of incapability of testing the liquid level due to the installation of a cable packer in a maritime electric pump well.

The invention discloses a weather monitoring device for marine safety. The device comprises a main body frame: a solar panel which is disposed on the outer side of the main body frame, a buoy base which is arranged at the lower end of the main body frame, and a fixing mechanism which is arranged on the upper side of the buoy base, and the buoy base is connected with the main body frame through the fixing mechanism; the device further comprises a power assembly which is arranged at the lower end of the buoy base, the upper end of the power assembly and the buoy base form a bearing connection structure, and the upper end of the power assembly penetrates through and extends out of the buoy base; the device further comprises a transmission mechanism which is arranged on the inner side of the main body frame, and the lower end of the transmission mechanism is connected with the power assembly. According to the weather monitoring device for marine safety, the solar panel and an internal circuit can be effectively protected conveniently, meanwhile, sea bird excrement on the outer side can be cleaned conveniently, and the buoy can be rapidly disassembled and assembled and can be conveniently recycled and maintained.

The present invention relates to a passenger ship navigation management system using AIS two-way communication, and a control method thereof. The passenger ship navigation management system comprises the following components: a control center which receives real-time AIS position information from a plurality of wireless base stations for analyzing a port entering and leaving state of a passenger ship and notifying the current ship navigation state to a passenger ship navigation control center; and the ship navigation control center which is administrated by the port and comprises the following components: a seacoast wireless base station device which transmits the land information that is supplied from the control center to an on-sea terminal, and receives the position information transmitted from the on-sea terminal to the control center; a passenger ship monitor device which is connected with the control center and displays the state of the inward-outward passenger ship on an electronic navigational chart for monitoring the position of the passenger ship in sea navigation, while the passenger ship navigation control center provides information; and an on-sea passenger ship terminal which receives and displays a sea navigation support function with the electronic navigational chart and the on-sea security support short message transmitted from the land, and furthermore transmits the position of the terminal and the ship navigation information to the land.

The invention discloses a ship collision risk early warning method that integrates geometric analysis and data mining, comprising: combining ship AIS data with a quaternary ship field modeling idea to construct a forbidden boundary and an expected boundary in the quaternary ship field. Then, according to the quaternary ship domain model, the ship collision space risk and early warning value are obtained, and the ship collision time risk early warning value is calculated according to the ship collision space risk; the ship collision time risk is obtained by using the instantaneous relative position of the ship. Finally, according to the catastrophe theory, the space-time collision risk and early warning value of two ships are calculated respectively, and the calculation model of space-time collision risk of any ship and early warning value of space-time collision risk of any ship under the multi-ship encounter scenario is constructed. Use edge computing to quickly compare the space-time collision risk of ships and the early warning value of space-time collision risk of ships, and provide support for ship safety supervision and collision avoidance decision-making. This method can not only support ship collision avoidance decision-making and maritime safety supervision, but also reduce and avoid ship collisions and ensure water safety.

The invention relates to a rotary type self-unloading conveying belt device for a ship and belongs to ship cargo self-unloading devices. The rotary type self-unloading conveying belt device is composed of a discharging conveying component and a feeding conveying component, wherein the discharging conveying component is arranged on the surface of the bow, and the feeding conveying component is arranged in a cabin. The discharging conveying component comprises a discharging conveying belt and a conveying frame of the discharging conveying belt, wherein the front end of the conveying belt and the front end of the conveying frame of the discharging conveying belt each obliquely stretch out of the bow by 40 meters-50 meters, and a rotary driving component is arranged at the rear end of the conveying belt and the rear end of the conveying frame of the discharging conveying belt. Under the driving of a motor and a gear, the rotary driving component can stretch out of a conveying belt of the ship body and a conveying frame of the conveying belt to rotate by 360 degrees, and therefore a frame body can be rotated to an unloading point during unloading, and the frame body can be rotated to and placed on the top of the cargo hold of the ship body after unloading is finished. Safe traveling is facilitated, and new regulations of the China Maritime Safety Administration are met.

The invention discloses a BDS and VDES fusion networking communication system for maritime safety communication. The system comprises communication terminals which are respectively installed on a plurality of ships and are in wireless connection with a Beidou satellite and a shore base, each communication terminal comprises a power module, and each power supply module is connected with a display module, a central control module, a communication interface module, a Beidou module, an input module and a modulation-demodulation module. VDES communication and BDS communication are integrated through the modulation and demodulation module and the Beidou module, data intercommunication between the VDES and the BDS is achieved by recoding the VDES, the flexibility of VDES communication is improved, the defect of VDES one-way communication is overcome, the capacity of VDES remote communication is improved, and the application field of a Beidou satellite system is expanded.

The invention discloses a marine multi-band multi-standard life-saving radio station and a life-saving method thereof. The radio station includes a casing and the following components arranged in the casing: a Beidou module, which is used for medium and long-distance alarm and / or short message communication and / or positioning at sea ; 9GHz SART module, used for position indication at sea; VHF / UHF voice module, used for radio voice communication with short-sight distance from sea to air; LED flashlight module, used for position indication at sea at night; main control unit, used for each module control; the battery pack supplies power to each module and the main control unit respectively. Through the combination of multi-band and multi-standard, the present invention realizes the integrated technology of portable global marine distress and safety communication within the scope of portable structure, breaks through the limitation that the conventional distress life-saving technology can only perform a single function, and thus improves the safety of life-saving in distress. The success rate has improved the reliability of maritime safety.

The invention discloses a ship loitering detection method based on AIS data. The invention can detect the ship loitering behavior according to the acquired AIS track data of the ship and classify the ship loitering behavior for massive track data, and summarizes four typical types. Relationships between trajectories of anomalous behavior of ship motion and defined variables. According to the analysis of the relationship between the characteristics of the ship's trajectory and the statistical parameters, the abnormal wandering behavior of the ship is detected according to the distribution of the trajectory in the grid. After filtering and smoothing the ship's AIS trajectory, a global spatio-temporal grid index is established, and the ship's trajectory is gridded, and the abnormal movement of the ship is detected according to the characteristics of the abnormal behavior trajectory of the ship, and abnormal classification and alarm are carried out for the abnormal trajectory of the ship's motion behavior. Ship loitering behavior detection can provide decision support for maritime safety supervision, enhance maritime traffic safety, and ensure safe navigation of ships, which is of great significance to promote safe, efficient and smooth maritime transportation.