WO2018000748A1

WO2018000748A1 - Maritime navigation rescue system based on beidou satellite

Info

Publication number: WO2018000748A1
Application number: PCT/CN2016/109824
Authority: WO
Inventors: 王娜; 钟国权; 李霞; 徐韬
Original assignee: 深圳大学
Priority date: 2016-06-28
Filing date: 2016-12-14
Publication date: 2018-01-04
Also published as: CN106125099A

Abstract

A maritime navigation rescue system based on a Beidou satellite, comprising a shipborne terminal (1), a ground command and control centre (3) and a rescue terminal (4), wherein the shipborne terminal (1), the ground command and control centre (3) and the rescue terminal (4) are all in communicative connection with a Beidou satellite navigation system (2). After the ground command and control centre (3) of the system receives a distress message sent by a ship, a specific short message communication function of the Beidou satellite navigation system (2) can be used for getting in touch with the ship in distress, so as to confirm the authenticity of the distress message, thereby greatly reducing false alarms. At the same time, the shipborne terminal (1) of the system is free from restrictions of external factors, such as distances, weather and sea conditions, due to the Beidou short message communication function, and has functions of actively sending position information about a ship in distress at any time and performing short message communication with the ground command and control centre (3) at any time; and the shipborne terminal is stable and highly efficient, can accurately and timely send distress messages, and is helpful for a ground personnel to position and track people in distress, thereby accelerating a rescue speed.

Description

A Maritime Navigation and Rescue System Based on Beidou Satellite

Technical field

The invention relates to the field of maritime rescue based on satellite communication, in particular to a maritime navigation and rescue system based on Beidou satellite.

Background technique

The marine economy is an important direction for the future development of the world economy and provides a broad space and huge resources for the sustainable development of the world economy. Since the 1990s, the world's marine economy has grown at an average annual rate of 11%, and maritime navigation has become more frequent. As ship transport density increases and sea traffic becomes more frequent, maritime distress accidents increase year by year, often resulting in irreparable loss of life and property. Maritime rescue is particularly important when there is an emergency at sea. Currently, in accordance with international and domestic ship code requirements, GMDSS systems are required for international and domestic ships of more than 300 gross tonnage (global) Maritime distress and safety System, global maritime distress and safety system). The system is equipped with a variety of distress alert devices, including EPIRB (Emergency Position Indicator Radio Beacon, radio beacon), SART (Search and rescue transponder), VHF DSC (Very High) Frequency Digital Selective Calling Terminals , VHF radio communication digital selective calling) and so on. In the event of an emergency that threatens the safety of the crew or the ship, these distress alert devices can be activated and a distress call is made on the VHF16 channel. After receiving the VHF16 channel distress call, the attached ship forwards the call or responds according to its own situation. Rescue.

But this way of asking for help has the following disadvantages: 1) IMO (International Maritime 2005) Organization, International Maritime Organization) survey, EPIRB, DSC and other alarm equipment design flaws, the possibility of false alarms is very high; 2) the distance of action is short, because the frequency of VHF VHF radio waves is between 30MHZ-300MHZ, The ionosphere can not be reflected. The effective communication range is limited to the visual range. Only when there are other ships nearby, the ship will receive the distress signal and make a distress response. 3) The EPIRB alarm has a large delay and is easy to miss the gold. Rescue time; 4) It is not possible to actively tell the search and rescue party about the distress information such as its location and type of distress, which is not conducive to the search and rescue personnel to quickly and accurately search for and rescue the people in distress. Therefore, how to promptly and accurately report the position information of the distressed person to the search and rescue personnel, and actively provide distress information including the number of people in distress and the information of the nearby sea area to become the key to rescue.

technical problem

The technical problem to be solved by the present invention is to provide a maritime navigation and rescue system based on Beidou satellite to reduce false alarms.

Technical solution

The present invention is implemented as follows:

A sea navigation and rescue system based on Beidou satellite, comprising a ship terminal, a ground command and control center and a rescue terminal; the ship terminal, the ground command and control center and the rescue terminal are all connected with the Beidou satellite navigation system;

The shipborne terminal is mounted on the vessel for transmitting distress information through the Beidou satellite navigation system when the vessel is in distress;

The ground command and control center is configured to receive the distress information, and after receiving the distress information, contact the ship terminal through the Beidou satellite navigation system to confirm the authenticity of the distress information, and confirm When the distress information is true, the distress information is transmitted to the rescue terminal through the Beidou satellite navigation system.

Further, the shipboard terminal includes an alarm module, a first processor, a first Beidou positioning module, and a first short message communication module, and the distress information includes location information of the ship in distress;

The alarm module is triggered when the ship is in distress; after receiving the trigger signal of the alarm module, the first processor acquires the position information of the ship in distress through the first Beidou positioning module, and The location information is sent to the first short message communication module, and the first short message communication module transmits location information of the ship in distress to the ground command and control center through the Beidou satellite navigation system.

Further, the shipborne terminal further includes a first electronic chart module and a navigation module;

The navigation module is configured to navigate the ship and send corresponding navigation information to the first processor;

The first electronic chart module is configured to receive the navigation information and the location information by using the first processor, and display the navigation information and the location information in an electronic chart.

Further, the shipboard terminal further includes a first Beidou analysis and encapsulation module; the first Beidou analysis and encapsulation module is configured to parse the location information before the first processor acquires the location information, And encapsulating the location information before the first processor sends the location information.

Further, the ground command and control center includes a second processor, a serial communication module, and a second short message communication module; the serial communication module is configured to use the second processor and the second short message communication module Data communication between

The second processor is configured to receive the distress information through the second short message communication module and forward the distress information to the rescue terminal through the bucket satellite navigation system.

Further, the first Beidou positioning module is further configured to acquire real-time location information of the ship;

The first processor receives real-time location information of the ship, and transmits real-time location information of the ship to the first short message communication module;

The first short message communication module transmits the real-time location information of the ship to the second short message communication module by using the Beidou satellite navigation system;

Receiving, by the second processor, real-time location information of the ship from the second short message communication module by using the serial port communication module;

The ground command and control center further includes a second electronic chart module and a navigation monitoring module;

The navigation monitoring module is configured to receive real-time location information of the ship from the second processor, and generate a route of the ship according to real-time location information of the ship, and display the path through the second electronic chart module The route of the ship;

The navigation monitoring module is further configured to send a route adjustment command to the second short message communication module by using the serial communication module when the route deviation of the ship from the set route exceeds a set threshold;

The second short message communication module transmits the route adjustment command to the shipboard terminal through the Beidou satellite navigation system.

Further, the ground command and control center further includes a second Beidou analysis and encapsulation module, and the second Beidou analysis and encapsulation module is configured to parse the information sent by the Beidou satellite navigation system received from the serial communication module, and is to be sent to The information of the Beidou satellite navigation system is encapsulated and sent to the serial communication module.

Further, the rescue terminal includes a third processor, a third electronic chart module, a third short message communication module, and a second Beidou positioning module;

The third processor acquires real-time location information of the rescue terminal by using the second Beidou positioning module, and receives location information of the ship in distress through the third short message communication module, and passes the The three-electron chart module displays location information of the ship in distress and real-time location information of the rescue terminal.

Further, the rescue terminal includes a plurality of; the third processor of each rescue terminal further transmits real-time location information of each rescue terminal to the ground command and control center through the third short message communication module;

The ground command and control center determines the rescue terminal closest to the ship according to the position information of the ship in distress and the real-time position information of each rescue terminal, and transmits the distress information to the rescue terminal nearest to the ship.

Further, the rescue terminal further includes a third Beidou analysis and encapsulation module; the third Beidou analysis and encapsulation module is configured to: before the third processor acquires real-time location information of the rescue terminal, the rescue terminal Real-time location information is parsed.

Beneficial effect

Compared with the prior art, the maritime navigation and rescue system provided by the invention fully utilizes the short message communication function unique to the Beidou satellite navigation system. After receiving the distress information issued by the ship, the ground command and control center can use the short message communication function of the Beidou satellite navigation system to contact the ship in distress to confirm the authenticity of the distress information, and only when the distress information is confirmed to be true. The distress information is sent to the rescue terminal to implement the rescue, which greatly reduces the false alarm.

DRAWINGS

FIG. 1 is a schematic diagram showing the overall structure of a Beidou satellite-based maritime navigation and rescue system provided by the present invention;

Figure 2: Schematic diagram of the structure of the shipborne terminal in the maritime navigation and rescue system;

Figure 3: Schematic diagram of the structure of the ground command and control center in the maritime navigation and rescue system;

Figure 4: Schematic diagram of the rescue terminal in the maritime navigation and rescue system.

Embodiments of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1, the Beidou satellite-based maritime navigation and rescue system provided by the present invention includes a shipboard terminal 1, a ground command and control center 3, and a rescue terminal 4. Among them, the ship terminal 1, the ground command and control center 3 and the rescue terminal 4 are all connected with the Beidou satellite navigation system 2.

The shipborne terminal 1 is mounted on the vessel for transmitting distress information through the Beidou satellite navigation system 2 when the vessel is in distress. The distress information may include information such as the type of distress, the number of people in distress, the location of the ship in distress, and the content of the distress.

The ground command and control center 3 is configured to receive the distress information, and after receiving the distress information, contact the ship terminal 1 through the Beidou satellite navigation system 2 to confirm the authenticity of the distress information, and when confirming that the distress information is true, pass the Beidou satellite The navigation system 2 transmits the distress information to the rescue terminal 4.

The transmission, transmission, and transmission of data, information, and the like by the Beidou satellite navigation system 2 as described herein means that data, information, and the like are transmitted to the Beidou satellite navigation system 2, and then forwarded by the Beidou satellite navigation system 2. As shown in FIG. 2, the shipboard terminal 1 includes an alarm module 106, a first processor 101, a first Beidou positioning module 102, and a first short message communication module 105. The alarm module 106 is triggered when the ship is in distress. After receiving the trigger signal of the alarm module 106, the first processor 101 obtains the position information of the ship in distress through the first Beidou positioning module 102, and sends the position information to the first short message. The communication module 105, the first short message communication module 105 transmits the position information of the ship in distress to the ground command and control center 3 through the Beidou satellite navigation system 2.

When in distress at sea, the first short message communication module 105 transmits the distress information to the ground command and control center 3 via the Beidou satellite navigation system 2 to request rescue.

The first processor 101 cannot directly receive and process the position information of the ship acquired by the first Beidou positioning module 102. Therefore, the shipboard terminal 1 further includes a first Beidou analysis and packaging module. On the one hand, the first Beidou analysis and encapsulation module can complete the Beidou short message parsing according to the Beidou communication protocol, the frame data format and the Beidou statement format, thereby extracting the Beidou positioning data and the Beidou satellite basic information, and displaying the acquired information on the man-machine interface. On the other hand, the alarm information can be encapsulated and the Beidou short message can be established according to the communication protocol. The first Beidou analysis and encapsulation module is configured to parse the location information before the first processor 101 acquires the location information, parse the data that the first processor 101 can identify and process, and before the first processor 101 sends the location information. The location information is encapsulated and encapsulated into a data format that can be transmitted. When the ship encounters danger at sea, the alarm module 106 can be triggered automatically or manually by the crew. When the alarm module 106 contacts seawater, the alarm module 106 will automatically trigger. The alarm module 106 automatically triggers when an unexpected event such as a water fall event, a deviation route, or the like occurs during the voyage. The operator can input specific distress information through the alarm module 106 and send the distress information to the first short message communication module 105. After the alarm module 106 is triggered, the first processor 101 calls the first Beidou positioning module 102 to acquire the position information of the ship. The crew can input distress information such as the type of distress, the number of people in distress, and the position of the ship. The first Beidou analysis and packaging module encapsulates the distress information, and the encapsulated distress information is sent to the Beidou satellite navigation system 2 through the first short message communication module 105. The Beidou satellite navigation system 2 is forwarded to the ground command and control center 3, and the ground command and control center 3 contacts the alarm ship to confirm the authenticity of the distress information, and then determines whether the distress information is sent to the rescue terminal 4, and the rescue terminal 4 receives the distress information and then goes to the distress Location for search and rescue.

The onboard terminal 1 also includes a first electronic chart module 104 and a navigation module 103. The navigation module 103 is configured to navigate the ship and send corresponding navigation information to the first processor 101. The first electronic chart module 104 is configured to receive navigation information and location information through the first processor 101, and display the navigation information and the location information in the form of an electronic chart.

Specifically, the navigation module 103 receives the position information of the first Beidou analysis and the package module analysis, and can perform functions such as positioning, route setting, navigation display, and navigation data reproduction according to the analyzed position information of the ship. The positioning function mainly completes the ship positioning data display based on the embedded electronic chart platform and some basic status information display. The route setting is mainly used to realize the input of the waypoint, the display of the route, the modification and the setting of the alarm range during non-navigation. The navigation display mainly displays the navigation parameters, and displays the real-time position, track and yaw condition of the ship based on the embedded electronic chart platform, and presets the route, heading and voyage data display. The navigation data reproduction mainly completes the reproduction of the line, the track and the reproduction of the navigation parameters.

The first electronic chart module 104 includes a hardware system and a software system. The software system is built on a hardware system and includes an embedded operating system and embedded application software. The application software displays computer chart data using computer graphics and computer graphics functions on the premise of observing the electronic chart display standard (S-52). In order to improve the display speed and display efficiency of the chart, the module utilizes the memory bitmap, the region feature boundary extraction, the redundant data processing and the data clipping algorithm, and uses the S-52 to look up the table information, and cooperates with the symbol library, the conditional command, and the color table to symbolize Information such as color, text, etc. quickly display the chart according to the index structure. In addition, the module also displays the location information acquired by the Beidou positioning module and the navigation information set by the navigation module 103 on the electronic chart. The onboard terminal 1 also includes a first power module 107 for powering the onboard terminal 1.

The positioning function in the onboard terminal 1 can be implemented based on an electronic chart. During the voyage, the ship performs latitude and longitude calculation through the positioning function of the Beidou satellite navigation system 2, and obtains the ship position on the electronic chart of the ship terminal 1. The positioning function of the shipboard terminal 1 includes the current real-time position display and the search address, and the alarm function of the shipboard terminal 1 is realized by the Beidou short message communication, including the short message information alarm and the help button "one button alarm". Specifically, the corresponding virtual buttons can be set on the touch display interface of the shipboard terminal 1 for displaying the current location, searching for the location, sending the short message information, and one-click for help.

Clicking on the virtual button for displaying the current location displays the real-time position of the ship on the electronic chart of the ship's terminal, which will provide an intuitive and convenient way to see where the ship is currently sailing in order to develop an effective navigation route.

Click on the virtual button used to search for a location to search for other locations on the sea, so that the ship can sail effectively at sea. At the same time, the ship terminal uses the short message communication function to communicate with other ships or ground command and control centers 3 on the sea, and can know the specific location names of other ships, and then use the position search function to search for the positions of other ships, so that other The position of the ship at sea is clear at a glance.

Each ship terminal 1 has a unique user ID number. Clicking on the virtual button for sending short message information can send short message information to the ship's terminal 1 of other ships, or can also command the control center 3 to the ground. The commander sends short message information. The short message information sent may include the latitude and longitude coordinates of the position of the ship at sea. After clicking the send button, the information can be sent to the ship's terminal 1 of the other party or the commander of the ground command and control center 3, so that the ship terminal 1 is Distress information and rescue instructions can be sent via short message information.

When the ship is in an emergency, if the crew can't edit the specific short message content and send the short message information, the distress information can be sent to the ground command and control center 3 quickly, accurately and timely through the virtual key for one-click help. By using this one-button rescue method, the ground command and control center 3 is called for help, and the time for editing the short message information is omitted, so as to save the rescue time and quickly rescue the ship in distress at sea. The one-button help function is to set some basic ship information such as the ship name, ship type, ship number and passenger number in advance in the ship information setting. When it encounters an emergency, package and package its own latitude and longitude values into one. The data packet is sent to the ground command and control center 3. In this way, the ground command and control center 3 can make rescue measures according to the type of distress in the information according to the distress information sent by the ship in distress through the Beidou short message, so as to effectively rescue the ship in distress at sea to reduce losses in all aspects. . Clicking on the virtual button for one-click help will display various distress type buttons, and click the corresponding distress type button according to the distress situation to realize one-click transmission of distress information.

As shown in FIG. 3, the ground command and control center 3 includes a second processor 201, a serial communication module 202, and a second short message communication module 205. The serial communication module 202 is used for data communication between the second processor 201 and the second short message communication module 205. The second processor 201 is configured to receive the distress information through the second short message communication module 205 and forward the distress information to the rescue terminal 4 through the bucket satellite navigation system. The ground command and control center 3 is mainly responsible for contacting the ship to receive the distress information after receiving the distress information, and confirming the distress information and forwarding the distress information to the rescue terminal 4.

The first Beidou positioning module 102 is further configured to acquire real-time location information of the vessel. The first processor 101 receives the real-time location information of the ship and transmits the real-time location information of the ship to the first short message communication module 105. The first short message communication module 105 transmits the real-time location information of the ship to the second short message communication module 205 through the Beidou satellite navigation system 2. The second processor 201 receives the real-time location information of the ship from the second short message communication module 205 through the serial port communication module 202. The second short message communication module 205 is integrated in the Beidou integrated machine, and can receive information transmitted by the Beidou satellite navigation system 2, and can also transmit information to the Beidou satellite navigation system 2. The second processor 201 can read the satellite information received by the second short message communication module 205 through the serial port communication module 202, and can also send the information to be sent to the second short message communication module 205 through the serial port communication module 202. The second short message communication module 205 transmits the information to be transmitted to the Beidou satellite navigation system 2.

The ground command and control center 3 also includes a second electronic chart module 203 and a navigation monitoring module 204. The navigation monitoring module 204 is configured to receive real-time location information of the vessel from the second processor 201, and generate a route of the vessel according to the real-time location information of the vessel, and display the route of the vessel through the second electronic chart module 203. The second electronic chart module 203 has the same system structure as the first electronic chart module 104. The second electronic chart display module can also display the maritime information of a certain sea area, and monitor the passing ships in real time, including the information of the passing ships, the location of the sea rescue vessels, the routes, and the environmental information such as weather and water depth of a certain sea area. . The navigation monitoring module 204 can monitor the navigation state of each ship in the sea in real time, and display the route deviation alarm on the second electronic chart when the route of the ship deviates from the set route exceeding the set threshold, and send the route adjustment through the serial communication module 202. The command is sent to the second short message communication module 205, and the second short message communication module 205 transmits the route adjustment command to the ship's ship terminal 1 through the Beidou satellite navigation system 2, requesting the ship to adjust the route.

The ground command and control center 3 further includes a second Beidou analysis and packaging module. The second Beidou analysis and packaging module can be used to parse the information sent by the Beidou satellite navigation system 2 received from the serial communication module 202, and will be sent to the Beidou satellite navigation. After the information of the system 2 is encapsulated, it is sent to the serial communication module 202.

Through the above method, the ground command and control center 3 can monitor the ship's route in real time, and send a route adjustment command to the ship when the ship's route is deviated, ensuring that the ship always sails along the set route to ensure navigation safety.

At the same time, through the ground command and control center 3, the ground commander can also formulate a corresponding rescue plan according to the distress situation of the ship in distress, and input the rescue plan into the ground command and control center 3, and send the rescue plan to the rescue terminal through the Beidou satellite navigation system 2. 4 and ships in distress. At the same time, the ground medical instructors can also formulate corresponding medical guidance and rescue plans according to the distress situation of the personnel in the ship in distress, and send the medical guidance and rescue plan to the ship in distress through the Beidou satellite navigation system 2, on the ship in distress. The personnel provide remote medical guidance and rescue to minimize the loss of life and property of the crew on the ship in distress.

The ground command and control center 3 can communicate with the distressed vessel on the sea through the Beidou short message and obtain the specific location of the ship in distress at sea, which is displayed on the PC-end electronic chart of the ground command and control center 3, so that the ground command and control center 3 It is possible to know the navigation situation and location of the maritime navigation vessel, and to facilitate effective management and rescue measures, so that the ground command and control center 3 can effectively manage the maritime navigation vessel.

When the ship in sea navigation is in distress, the shipborne terminal 1 carried by the mariner on the ship sends the distress information to the ground command and control center 3 in a manner of Beidou short message communication according to a certain transmission format. The ground command and control center 3 receives through its commander. The distress information is then transmitted to the peripheral PC for display. The distress information received by the commander is encapsulated according to a certain format. The distress information can be parsed according to the communication information transmission format, and then displayed, so that the ground command and control center can formulate effective search and rescue decisions.

When a ship in sea navigation encounters a dangerous situation, it uses the ship terminal 1 carried by the ship itself to send distress information to the ground command and control center 3. The ground command and control center 3 analyzes the latitude and longitude of the ship in distress at sea according to the received distress information, so as to determine the precise position of the ship in distress at sea early, and then formulate a search plan to minimize the loss as much as possible. The ground command and control center 3 can analyze the distress information sent by the ship terminal 1 according to the extended data format, obtain the latitude and longitude values of the ship in distress, and determine the specific position information of the ship at sea. A virtual button can be set on the user interface of the ground command and control center 3, and the latitude and longitude value of the ship in distress can be obtained by clicking the virtual button. At the same time, a virtual button can be additionally set on the same interface, and the virtual button can be clicked to display the specific position of the ship in distress on the electronic chart. The electronic chart is obtained by Mercator projection and coordinate conversion to obtain the coordinates of the PC device screen coordinate system, so that the specific position of the ship in distress can be displayed on the electronic chart of the PC device screen, which is convenient for the ground command and control center. Rescue forces search and rescue ships in distress at sea.

As shown in FIG. 4, the rescue terminal 4 includes a third processor 301, a third electronic chart module 305, a third short message communication module 303, and a second Beidou positioning module 302. The third processor 301 acquires the real-time location information of the rescue terminal 4 through the second Beidou positioning module 302, and receives the location information of the ship in distress through the third short message communication module 303, and displays the ship through the third electronic chart module 305. Location information in case of distress and real-time location information of the rescue terminal 4. In this way, the search and rescue personnel can quickly understand the location of the ship in distress and the distance from the ship in distress through the rescue terminal 4, so as to quickly reach the position of the ship in distress.

The rescue terminal 4 may include a plurality of rescue terminals 4 respectively installed on different rescue vessels. The third processor 301 of each rescue terminal 4 can transmit the real-time location information of each rescue terminal 4 to the ground command and control center 3 through the third short message communication module 303. The ground command and control center 3 determines the rescue terminal 4 closest to the ship based on the position information of the ship in distress and the real-time position information of each rescue terminal 4, and transmits the distress information to the rescue terminal 4 closest to the ship. Rescuing the nearest rescue ship from the ship in distress can reach the sea area where the ship is in danger, shorten the rescue time and improve the success rate of rescue.

The rescue terminal 4 further includes a third Beidou analysis and packaging module, and the third Beidou analysis and packaging module is configured to parse the real-time location information of the rescue terminal 4 before the third processor 301 acquires the real-time location information of the rescue terminal 4.

In order to effectively supervise and manage ships sailing at sea, the ground command and control center 3 can use the Beidou short message to communicate with the maritime navigation ship in real time. If the ship is in distress at sea, the ship in distress uses the ship terminal 1 to seek help from the ground command and control center 3, and the ground command and control center 3 can use its commander to reply to the ship in distress through the Beidou short message in order to confirm the distress information, and according to the specific The location of the distress and the type of distress, etc., send rescue instructions to the rescue terminal 4, so as to promptly notify the rescue vessel to go to the incident to carry out rescue, to minimize losses in all aspects.

In the present invention, the first Beidou analysis and packaging module, the second Beidou analysis and packaging module, and the third Beidou analysis and packaging module are disposed in different terminals for parsing and packaging different information/data, but the three The structure and working principle are the same, both for parsing and encapsulating information/data. Similarly, the first Beidou positioning module 102 and the second Beidou positioning module 302 have the same structure and working principle, and are used for positioning; the first electronic chart module 104, the second electronic chart module 203, and the third The electronic chart module 305 has the same system structure and working principle, and is used to display the corresponding sea area and marine ship information in the form of an electronic chart. The first short message communication module 105, the second short message communication module 205, and the third short message communication module 303 have the same structure and working principle, and are used for short message communication with the Beidou satellite navigation system 2, and the like. At the same time, a first power module 107 is further disposed in each of the shipboard terminals 1. The first power module 107 is connected to the first processor 101, and the second power module 205 is disposed in the ground command and control center 3, and the second power source is provided. The module 205 is connected to the second processor 201. The rescue terminal 4 is provided with a third power module 304, and the third power module 304 is connected to the third processor 301. Three power modules are used to supply power.

The main innovations of the invention are:

1. The shipborne terminal utilizes the Beidou satellite navigation system, based on the embedded Beidou user machine and electronic chart platform. Compared with the traditional computer-based shipboard electronic chart navigation platform, the ship terminal based on Beidou positioning is a portable The mobile terminal has the advantages of strong mobility, high flexibility, low cost, small size, and convenient for mariners to carry.

2. The shipborne terminal 1 is based on the Beidou short message communication function, and is not limited by external factors such as distance, weather, sea state, etc., and has the function of actively transmitting the position information of the ship in distress at any time, and performing short message communication with the ground command and control center 3 at any time. It is conducive to the positioning and tracking of people in distress on the ground. The existing ship navigation system and the search and rescue equipment are independent of each other, and the shipboard terminal 1 of the system has the functions of navigation and help.

3. The alarm mode of the system is to send the distress information to the ground command and control center through the Beidou short message communication mode. This kind of help-seeking method is stable and efficient, and can transmit the distress information accurately and timely, which can speed up the rescue progress and simultaneously Short message stable communication mode can reduce false alarms.

4. The invention has a decision-making team and a medical team in the ground command and control center 3, and can provide rescue programs and medical guidance information at a first time according to specific distress conditions, thereby reducing losses caused by distress.

5. The function development of the ship terminal 1, the ground command and control center 3, and the rescue terminal 4 are all based on the electronic chart platform, which can realize rich functions in the electronic chart platform, including but not limited to:

(1) Electronic chart display: Based on the S-57 data transmission standard and the S-52 data display standard, the display of the electronic chart on the ship terminal 1, the ground command and control center 3, and the rescue terminal 4 can be realized.

(2) Display mode: The electronic chart has three display modes, namely basic display, standard display and full display.

(3) Language selection: The electronic chart geographical location name can be displayed in Chinese or English.

(4), zoom display: can zoom in and out on the electronic chart.

(5), color scheme: There are three electronic chart color schemes during the day, dusk and night.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

A Beidou satellite-based maritime navigation and rescue system, characterized in that it comprises a shipboard terminal, a ground command and control center and a rescue terminal; the shipboard terminal, the ground command and control center and the rescue terminal are all connected with the Beidou satellite navigation system;

The shipborne terminal is mounted on the vessel for transmitting distress information through the Beidou satellite navigation system when the vessel is in distress;

The ground command and control center is configured to receive the distress information, and after receiving the distress information, contact the ship terminal through the Beidou satellite navigation system to confirm the authenticity of the distress information, and confirm When the distress information is true, the distress information is transmitted to the rescue terminal through the Beidou satellite navigation system.
The maritime navigation and rescue system of claim 1 , wherein the shipboard terminal comprises an alarm module, a first processor, a first Beidou positioning module, and a first short message communication module, wherein the distress information includes State location information when the ship is in distress;

The alarm module is triggered when the ship is in distress; after receiving the trigger signal of the alarm module, the first processor acquires the position information of the ship in distress through the first Beidou positioning module, and Narrative

The information is sent to the first short message communication module, and the first short message communication module transmits the position information of the ship in distress to the ground command and control center through the Beidou satellite navigation system.
The maritime navigation and rescue system of claim 2, wherein the shipborne terminal further comprises a first electronic chart module and a navigation module;

The navigation module is configured to navigate the ship and send corresponding navigation information to the first processor;

The first electronic chart module is configured to receive the navigation information and the location information by using the first processor, and display the navigation information and the location information in an electronic chart.
The maritime navigation and rescue system of claim 3, wherein the shipborne terminal further comprises a first Beidou analysis and packaging module; the first Beidou analysis and packaging module is configured to acquire at the first processor The location information is parsed before the location information, and the location information is encapsulated before the first processor sends the location information.
The maritime navigation and rescue system according to claim 2, wherein the ground command and control center comprises a second processor, a serial communication module, and a second short message communication module; and the serial communication module is used for the Data communication between the second processor and the second short message communication module;

The second processor is configured to receive the distress information through the second short message communication module and forward the distress information to the rescue terminal through the bucket satellite navigation system.
The maritime navigation and rescue system of claim 5, wherein the first Beidou positioning module is further configured to acquire real-time location information of the vessel;

The first processor receives real-time location information of the ship, and transmits real-time location information of the ship to the first short message communication module;

The first short message communication module transmits the real-time location information of the ship to the second short message communication module by using the Beidou satellite navigation system;

Receiving, by the second processor, real-time location information of the ship from the second short message communication module by using the serial port communication module;

The ground command and control center further includes a second electronic chart module and a navigation monitoring module;

The navigation monitoring module is configured to receive real-time location information of the ship from the second processor, and generate a route of the ship according to real-time location information of the ship, and display the path through the second electronic chart module The route of the ship;

The navigation monitoring module is further configured to send a route adjustment command to the second short message communication module by using the serial communication module when the route deviation of the ship from the set route exceeds a set threshold;

The second short message communication module transmits the route adjustment command to the shipboard terminal through the Beidou satellite navigation system.
The maritime navigation and rescue system according to claim 5, wherein the ground command and control center further comprises a second Beidou analysis and packaging module, and the second Beidou analysis and packaging module is configured to parse the received from the serial communication module. The information sent by the Beidou satellite navigation system and the information to be sent to the Beidou satellite navigation system are encapsulated and sent to the serial communication module.
The maritime navigation and rescue system of claim 2, wherein the rescue terminal comprises a third processor, a third electronic chart module, a third short message communication module, and a second Beidou positioning module;

The third processor acquires real-time location information of the rescue terminal by using the second Beidou positioning module, and receives location information of the ship in distress through the third short message communication module, and passes the The three-electron chart module displays location information of the ship in distress and real-time location information of the rescue terminal.
The maritime navigation and rescue system of claim 7, wherein the rescue terminal comprises a plurality of; the third processor of each rescue terminal further uses the third short message communication module to set the real-time location of each rescue terminal Information is sent to the ground command and control center;

The ground command and control center determines the rescue terminal closest to the ship according to the position information of the ship in distress and the real-time position information of each rescue terminal, and transmits the distress information to the rescue terminal nearest to the ship.
The maritime navigation and rescue system of claim 7, wherein the rescue terminal further comprises a third Beidou analysis and packaging module; the third Beidou analysis and packaging module is configured to acquire the third processor The real-time location information of the rescue terminal is analyzed before the real-time location information of the rescue terminal is described.