KR101344728B1 - The smart phone with marine information application - Google Patents

Abstract

The present invention relates to a marine information providing application and a system using the same based on the DGPS, by allowing the marine information to be serviced through a smart terminal based on the DGPS, expensive Electronic Chart Display and Information System (ECDIS) It is designed to provide accurate and easy service of specialized marine information for small sized fishermen who cannot have expensive equipment such as GPS plotter or those who enjoy marine leisure sports.

Description

Digi-PS based marine information application terminal. {The smart phone with marine information application}

The present invention relates to a marine information providing application based on DGPS and a system using the same, which are not equipped with expensive DGPS equipment or equipment such as ECDIS (Electronic Chart Display and Information System) or GPS plotter, marine leisure or marine leisure It is possible to accurately and easily service specialized marine information for those who enjoy sports.

In general, since there is no indicator information and there are many difficulties in acquiring suddenly changing weather information at sea, ships always need a device that can communicate with land and receive related information.

These devices are usually ECDIS (Electronic Chart Display and Information System) using the international standard S-57 electronic chart, GPS Plotter for navigating the vessel to the target point, or provide weather information wirelessly. For receiving wireless FAX, it is a device that costs from millions to tens of millions of dollars. Especially, these devices are recommended to be used as DGPS based on accuracy and reliability.

However, these DGPS systems or equipment (DPGS antennas, receivers, ECDIS, GPS flutter) are expensive to build, and are usually installed only on large fishing boats or vessels of a certain size, and small fishing vessels or vessels are accompanied by a large group. Therefore, most of the situation is not equipped with the above equipment.

In addition, although the National Maritime Research Institute updates the electronic chart data every two weeks, the equipment installed on the ship is inconvenient to upgrade to the latest electronic chart data when using the electronic chart service, even though it is expensive. Relying on poor navigational systems may result in unexpected marine accidents when sailing. In addition, even when receiving weather information from the Meteorological Agency through wireless fax, there is an inconvenience that the readability is lowered when printing in black and white.

Therefore, if you look at the total marine accidents, marine accidents of large ships are only 20-30%, but marine accidents of small ships are exposed to many risks of 70-80%.

Moreover, large vessels move along a defined route for a given purpose, while small fishing boats and motor boats move along various paths for various purposes, such as farming, transportation, or fishing boats. Therefore, it is more affected by temperature, atmosphere, weather information, and current flow that change every moment.

Therefore, the present invention is intended to receive specialized marine information for small vessels or boats through the marine information provision application of the smart device based on the DGPS.

That is, the present invention provides a DGPS-based service for improving the accuracy and reliability of GPS, and is always provided with the latest electronic map map service through a generalized smart phone, and recently observed data without expensive driving equipment such as wireless fax. It is to receive the service based on the maritime information.

To this end, the present invention accesses the NTRIP system through a mobile communication network or the Internet network when requesting a service, confirms that the RTCM message is received from the NTRIP system, and transmits the RTCM message to a DGPS receiver to receive the corrected location information to receive the NMEA protocol. And a marine information providing application terminal (hereinafter referred to as a smart terminal) that displays the current position on a serviced sea map after analyzing the corrected location information according to the present invention.

NTRIP system for receiving the RTCM message from the reference station installed on the ground or the sea when the smart terminal is connected to send the RTCM message to the smart terminal requesting the RTCM message through a mobile communication network or the Internet;

Connected to the smart terminal by wire or wirelessly, the RTCM message is received and confirmed, and after calculating the corrected position information by reflecting the RTCM message to the GPS information transmitted from the satellite, the corrected position information is transmitted to the smart terminal. With DGPS receiver to say,

Checking the corrected position information transmitted when the service request of the smart terminal, search the sea information based on the current position (Search) and transmits the sea information and map information searched (Search) to the smart terminal of the user Characterized by including a service server.

According to the present invention, a marine information providing application terminal (smart terminal) based on DGPS can accurately identify the location of a boat or a small ship moving at low cost and serve marine information.

In addition, the present invention moves to a variety of purposes (culture, fishing boats, vehicles, leisure sports) and a variety of paths by service of the current flow or route, or temperature or weather information based on the map information serviced through the smart terminal It is now possible to service marine information for small ships or boats.

1 is an exemplary view of a marine information providing application terminal and system according to an embodiment of the present invention.
Figure 2 is a block diagram showing an overview of the overall configuration of the marine information providing application terminal and system according to an embodiment of the present invention.
3 is a block diagram of a smart terminal according to an embodiment of the present invention.
4 is a flow chart of a smart terminal according to an embodiment of the present invention.
5 is a block diagram of a smart terminal according to an embodiment of the present invention.
6 is a flow chart of a smart terminal according to an embodiment of the present invention.
7 is a block diagram of a smart terminal according to an embodiment of the present invention.
8a to 8e is a screen of the smart terminal according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary view briefly showing the configuration of the marine information providing application terminal and system according to an embodiment of the present invention, Figure 2 is a configuration of the marine information providing application terminal and system according to an embodiment of the present invention A simplified block diagram.

As shown, the present invention and the NTRIP system for transmitting the RTCM message to the smart terminal after obtaining the RTCM message from the reference station when the service request of the smart terminal,

A DGPS receiver connected to the smart terminal by wire / wireless, receiving and checking an RTCM message from the NTRIP system, and calculating corrected position information by reflecting the RTCM message to GPS information transmitted from a satellite;

After accessing the NTRIP system to secure the RTCM message and analyzing the current location of the corrected location information through the DGPS receiver according to the NMEA protocol, receiving the sea or map information by transmitting the corrected location information to the service server. With a smart terminal,

Checking the corrected position information transmitted when the service request of the smart terminal, search the sea information based on the current position (Search) and then transmits the sea information or map information (Search) searched to the smart terminal of the user Including service server.

The NTRIP (Networked transport of RTCM Via Internet Protocol) system is a protocol based on the Hypertext Transfer Protocol (HTTP / 1.1). In addition, the NTRIP system includes an NTRIP server and an NTRIP client NTRIP caster.

Here, the NTRIP server transmits GPS correction data generated from the NTRIP source to the NTRIP caster, where the NTRIP source provides continuous GPS correction data (RTCM message) according to the data stream. One data source refers to data generated by a particular GPS reference station, and each GPS data (RTCM message) is identified by a unique ID called a mount-point. In addition, the NTRIP caster natively supports portions of HTTP request / response messages. Adapted to low bandwidth streaming data of 50-500 bytes / sec per stream, the NTRIP caster configures the available NTRIP sources and defines all source IDs (Mount-Point).

In addition, the DGPS receiver is connected to the smart terminal by wire or wireless to confirm receiving the RTCM message transmitted from the NTRIP system. Then, the corrected location information is calculated by reflecting the RTCM message value transmitted to the GPS information transmitted from the satellite. At this time, the corrected location information is output to the corresponding smart terminal according to the binary format or the NMEA format.

In this case, the DGPS receiver may be integrated with a smart terminal according to an embodiment, or may operate in conjunction with a built-in GPS module according to the embodiment.

In addition, DGPS-based maritime information provision application terminal (smart terminal) is connected to the networked transport of RTCM Via Internet Protocol (NTRIP) system via a mobile communication network or the Internet after running the application RTCM (The Radio Technical Commission for Maritime) Request a message.

When the smart terminal receives the RTCM message from the NTRIP system, the smart terminal transmits the RTCM message to the DGPS receiver and receives the corrected position information corresponding thereto.

The smart terminal receives the corrected position information from the DGPS receiver and processes the corrected position information according to the National Marine Electronics Association (NMEA) protocol, and displays the correct current position on the map with the corrected position information.

And the smart terminal is configured to receive the maritime information / map information (electronic map) of the region based on the current location to display the maritime information on the map based on the region.

At this time, the sea information refers to all data observed at sea collectively, and weather special weather / weather / weather / forecast / image data image data including weather / wind direction / wind speed / temperature / water temperature of a specific point received by accessing the service server And the voice broadcasting data of the Meteorological Agency.

In addition, the service server is a server for providing maritime information and map information based on the corrected location information transmitted when the service request of the smart terminal, the meteorological office that guides the information and weather information observed through buoys, lamps, lighthouses, etc. It may be a service server or a GIS server serving image data even if it is an electronic device.

Figure 3 shows the configuration of the marine information providing application terminal based on the DGPS according to an embodiment of the present invention, it shows a module configuration for securing the corrected position information of the smart terminal. At this time, each module means a functional and structural combination of hardware and software for carrying out the technical spirit of the present invention.

First, the driving module instructs to secure the corrected position information of the user through the NTRIP main control module during the application operation and transmits the corrected position information to the designated service server to receive the sea information.

In addition, the NTRIP interface module attempts to connect to a networked transport of RTCM Via Internet Protocol (NTRIP) system through a mobile communication network or an internet network while the driving module is operated, and receives an RTCM message of a specific reference station.

In addition, when the NRIP interface module receives the RTCM message from a specific reference station, the location information processing module is controlled by the NTRIP main control module to transmit the RTCM message to a DGPS receiver, and the corresponding corrected location information is transmitted. It is a module to check the current position by receiving.

In addition, the NTRIP main control module requests a mount point list from the NTRIP caster during operation of the drive module, extracts the mount point name and location information (latitude and longitude) from the obtained mount point list, and processes the location information. The closest mount point is identified by calculating the current position and distance obtained from the module.

In addition, the NTRIP main control module requests an NTRIP connection (ID / password / mountpoint) to the nearest mount point from the mountPT list and receives a correction information (RTCM) message. That is, the NTRIP main control module is for receiving the RTCM message minimized the error value.

In addition, Figure 4 shows a process for obtaining the corrected position information of the smart terminal according to an embodiment of the present invention, when the smart terminal is operated as shown first the NTRIP main control module through the NTRIP interface module You will connect to the NTRIP caster and request a MountPT list request (Request MSG: GET / HTTP / 1.1 / r / nUUser-Agent: NTRIP GNSSInternetRadio 1.4.11 \ r \ n).

The NTRIP Caster correspondingly includes a mount point list (MountPT) list (STR; DAEJ_RTCM20DAEJ_RTCM20; RTCM, 2.0; 2; 0; DGPS; KORREF; KOR; 36.36127.290; 0 ; TRIMBLE NETR5; none; B; N; 9600; FROMS ERVER) will be created and sent to the smart terminal.

At this time, the smart terminal grasps each mount point name and location (latitude and longitude) based on the mount point list (MountPT) transmitted from the NTRIP Caster, and calculates the closest mount point through distance calculation with the current position. Check it.

Afterwards, the smart terminal connects to an NTRIP (ID / password / mountpoint) to the nearest mount point among the mountPT lists, and requests the transmission of an RTCM message.

The NTRIP Caster creates an RTCM message and transmits it to the corresponding smart terminal.

In addition, the smart terminal checks the RTCM message transmitted from the NTRIP Caster and transmits to the DGPS receiver.

The DGPS receiver checks the RTCM message transmitted from the smart terminal. The GPS position information is calculated by reflecting the RTCM message value to the GPS information transmitted from the satellite.

The DGPS receiver outputs the corrected position information to the corresponding smart terminal according to the binary format or the NMEA format.

The smart terminal processes according to the National Marine Electronics Association (NMEA) protocol based on the corrected position information transmitted from the DGPS receiver, and transmits to the service server or displays the marine information received from the service server on the map. Will be given.

In addition, Figure 5 shows the configuration of the application terminal for receiving the DGPS service according to an embodiment of the present invention, first the interface module (Socket) is based on the information confirmed through the location information processing module mobile communication network or Internet network Access to the designated service server through the request to send the image data of the electronic chart of the location. In this case, the electronic chart interface module performs the same role as the NTRIP interface module.

In addition, the file system cache module receives and stores image data from the service server through the electronic chart interface module when the update version is inconsistent.

In addition, the memory cache module is to load the electronic chart image data cached through the file system cache module when the drive, and to provide the first electronic chart image data stored through the memory cache module at the first priority. In other words, the electronic map image data of a route or a nearby sea where a small vessel or a fishing boat has frequently moved, is loaded into the memory cache module, and the loaded data is immediately serviced and displayed without delay. It was made possible.

In addition, when the electronic chart control module accesses the electronic chart GIS server (service server) after driving the app, the electronic chart control module requests a user authentication and electronic chart version through the electronic chart interface module.

The electronic chart control module checks the APP ID and version information for user authentication, and stores session information for the normal user and exchanges data.

At this time, the electronic chart version and encryption key and encryption key version information is stored in the smartphone DB or file system cache module.

If the version of the electronic chart stored at the time of connection and the version of the electronic chart provided by the GIS server do not match, the electronic chart control module deletes the electronic chart image data of the file system cache module and passes through the electronic chart interface module. Save the latest version of the electronic chart as image data.

In this case, if the stored version of the electronic chart and the GIS server version match, the electronic chart control module loads the cached electronic chart image through the file system cache module into the memory cache module.

In addition, the electronic chart control module generates an electronic chart ID corresponding to the corresponding location based on the location information obtained through the location information processing module, and is stored in the memory cache module or the file system cache module with the generated electronic chart ID. The electronic chart image data is requested, and the electronic chart is decoded to output the electronic chart on the screen.

At this time, the electronic chart control module checks whether the electronic chart ID exists in the memory cache module loading frequently used electronic chart image data, and if there is no electronic chart ID in the file system cache module. In this case, if the electronic chart image data is not available, the electronic chart interface module is connected to the GIS server to receive the relevant electronic chart image data.

That is, the present invention frequently updates the electronic chart image data serviced as the current flow or weather information is changed, whereby the updated electronic chart information can be quickly checked and serviced through a version check, in particular frequently The electronic chart information of the moving route or region previously moved is loaded through the memory cache module, and when the electronic chart ID of the region is generated, the electronic chart of the region loaded through the memory cache module is promptly provided. It will be able to express map information quickly and quickly.

FIG. 6 is a flowchart illustrating a process of displaying map information (electronic chart) on a screen according to an embodiment of the present invention. As shown in the drawing, the smart terminal accesses a service server (GIS server) for authentication and version. Perform the check procedure.

In this case, the service server checks whether the user is a normal user after checking the APP ID and version information, and if the user authentication fails, an error message is output on the screen of the smart terminal.

At this time, if the smart terminal confirms that the version of the electronic chart transmitted from the service server and the stored version of the electronic chart are different from each other, the electronic chart image data of the file system cache monetary rate is deleted, and the electronic chart The interface module requests image data of the latest version.

If it is confirmed that the smart terminal is the same version, an electronic chart ID corresponding to the corresponding position is generated based on the corrected position information obtained through the position information processing module.

In addition, the smart terminal checks the electronic chart ID of the corresponding region loaded in the memory cache module, and if not, the smart terminal checks and decodes the electronic chart image data of the file system cache module and expresses the current position on the map.

In this case, if the electronic chart ID of the region is not searched, the electronic chart interface is requested and transmitted to the service server (GIS server) through the electronic chart interface module.

Therefore, the frequently moved route or information of the electronic chart of the previously moved region is loaded through the memory cache module, and when the electronic chart ID of the region is generated, the electronic chart of the loaded region is provided quickly and quickly. It will be able to display map information. In particular, the present invention is to help safe maritime activities by always providing the latest electronic chart data through the electronic chart version check.

FIG. 7 is a diagram illustrating module configurations for acquiring maritime information by a smart terminal connecting to a service server (meteorological service server) according to an embodiment of the present invention.

At this time, the weather information interface module (Socket) is connected to the designated service server (weather agency server) through the mobile communication network or the Internet network based on the information confirmed through the location information processing module, weather information, buoy / lamp / lighthouse, etc. It is a module to receive the observed information through. At this time, the weather information interface module is a module that performs a role similar to the electronic chart interface module or NTRIP interface module.

In addition, the voice output module is a module for outputting the received voice broadcast data by connecting to a service server (meteorological service server) after running the app, it is also a module for converting and outputting the text information to the voice information to the TTS module according to an embodiment. .

In addition, the image processing module is a module for expressing on the screen as shown in Figure 8a after decoding the weather alert / diary / forecast / image data obtained through the service server (weather server).

In addition, the maritime information control module is connected to the designated service server (weather service server) through the weather information interface module receives the voice broadcast data, and controls the voice output module to perform a voice announcement broadcast.

In addition, the maritime information control module is to display the icon, such as buoys, lights or lighthouse that exist in the designated search distance on the camera preview after the application is driven, and extract the ID when selecting the icon, the service server (weather agency) The server requests the latest observation data of the corresponding ID and displays it on the screen when the corresponding observation data is received.

In addition, when receiving the weather map / forecast / image data image data from the service server (weather server) as shown in FIG. 8A, the maritime information control module controls the image processing module to display the decoded data on the screen. .

8B to 8E illustrate screens of a smart terminal according to an embodiment of the present invention.

First, when the application of the smart terminal is driven as shown in FIG. 8b, the main screen is opened, and as shown in FIG.

At this time, the POI button or the marker button is a button for recording and calling the point of catching the fish well when fishing on the sea or the position of the net or the fish farm installed on the movement path.

In addition, when touching the increase and decrease reality button formed on one side, as shown in Figure 8d to search for the lighthouse, iso, or buoys located within the set radius based on the location information obtained through the DGPS and to display the iconized state Is given.

At this time, a radar view screen briefly showing whether there is a lighthouse, a buoy, a buoy, or the like within a radius set in the direction that the camera is watching.

In addition, if any one of the lighthouse, buoy or buoy icons displayed on the screen is selected, a detailed information window is opened as shown in FIG. Etc. are expressed.

In this case, the smart terminal may be linked with the service server of the Meteorological Agency to receive and display recently observed dynamic information (diary / wind direction / wind speed / temperature / water temperature) of the corresponding point.

Therefore, the present invention is able to service specialized marine information for small vessels or boats at low cost through the marine information providing application terminal based on DGPS.

1: DGPS reference station 2: NTRIP system
3: DGPS Receiver 10: Smart Terminal
10a: drive module 10b: NTRIP interface module
10c: NTRIP main control module 10d: Position information processing module
10e: Electronic chart interface module 10f: Memory cache module
10g: file system cache module 10h: electronic chart control module
10i: weather information interface module 10j: voice output module
10k: Image processing module 10l: Marine image control module
11: Display 11a: Diary
11b: Main screen 11c: Electronic chart
11d: Increase or decrease reality button 11e: Marker button
11f: POI button 11g: View screen
11h: Icon 11i: Radar view screen
11j: Detail Window 20: Service Server

Claims (12)

NTRIP system for receiving the RTCM message from the reference station installed on the ground or the sea when the smart terminal is connected and transmitting the RTCM message to the smart terminal requesting the RTCM message through the mobile communication network or the Internet;
Connected to the smart terminal by wire or wirelessly, the RTCM message is received and confirmed, and after calculating the corrected position information by reflecting the RTCM message to the GPS information transmitted from the satellite, the corrected position information is transmitted to the smart terminal. With DGPS receiver to say,
Checking the corrected position information transmitted when the service request of the smart terminal, and searching the sea information based on the current position (Search) and transmits the sea information / map information searched (Search) to the smart terminal of the user Including service server,
When the smart terminal receives the RTCM message by accessing the NTRIP system and confirms, and receives the corrected position information by transmitting the RTCM message to the DGPS receiver,
The smart terminal analyzes the location information corrected according to the NMEA protocol, and then displays the marine information / map information transmitted from the service server based on the current location, the marine information providing application based on DGPS. terminal. The method of claim 1,
The smart terminal is a marine information providing application terminal based on the DGPS, characterized in that the integrated with the DGPS receiver. The method of claim 1,
The service server is a marine information service application terminal based on the DGPS, characterized in that the electronic maritime GIS server of the National Maritime Research Institute, the meteorological office server of the Korea Meteorological Administration or the rescue server of the 122 situation room. 3. The method according to claim 1 or 2,
The smart terminal instructs to secure the corrected position information of the user through the NTRIP main control module during the application operation, and transmits the corrected position information to the designated service server to receive the marine information service;
The NRIP interface module which operates the driving module and attempts to access a networked transport of RTCM Via Internet Protocol (NTRIP) system through a mobile communication network or an internet network, and receives an RTCM message from a specific reference station;
When the NRIP interface module receives the RTCM message from a specific reference station, it is controlled by the NTRIP main control module to transmit the RTCM message to the DGPS receiver, and receives the corrected position information to check the current position. Module,
NTRIP main control to secure the RTCM message by controlling the NTRIP interface module during the operation of the drive module, and to process the corrected position information through the position information processing module to service map information / resolution information based on the current position identified. Marine information providing application terminal based on DGPS, characterized in that the module comprises a. 5. The method of claim 4,
The NTRIP main control module of the smart terminal requests a mount point list from the NTRIP system when the driving module operates, extracts the mount point name and location information (latitude and longitude) from the obtained mount point list. A marine information providing application terminal based on DGPS, characterized by receiving the RTCM message of the corresponding reference station after checking the nearest mount point. 5. The method of claim 4,
The smart terminal comprises an electronic chart interface module for transmitting electronic chart image data of a corresponding location by accessing a designated service server (GIS server) through a mobile communication network or an internet network based on the information identified through the location information processing module;
A file system cache module for storing the electronic chart image data received through the electronic chart interface module when the version of the electronic chart is in use and the version of the service server (GIS server) connected thereto;
A memory cache module which loads the electronic chart image data cached through the file system cache module during operation, and preferentially provides the electronic chart image data loaded during a call;
After running the application, the electronic chart interface module is controlled to control access to the electronic chart GIS server (service server), user authentication and electronic chart version check, and the GIS server (service server) according to the result of the version check of the electronic chart It includes an electronic chart control module that receives image data from the electronic chart from the electronic chart, or checks and decodes the electronic chart of the corresponding region through a file system cache module or a memory cache module based on the current location, and outputs it on the screen. Marine information provision application terminal based on the DGPS. The method according to claim 6,
The electronic chart control module of the smart terminal first checks the electronic chart image data loaded by the memory cache module, and then checks the electronic chart image data stored in the file system cache module when the electronic chart display is performed. When there is no electronic chart image data stored in the cache module and the file system cache module, a DGPS-based marine information provision application terminal is connected to a service server (GIS server) and requests electronic chart image data of a corresponding region. . The method according to claim 6,
The smart terminal accesses a designated service server (weather agency server) through a mobile communication network or an internet network based on the information confirmed by the location information processing module, and monitors the information observed through local weather information or buoy / light / lighthouse. Weather information interface module (Socket) for receiving,
A voice output module connected to the service server (weather service server) and outputting the received voice broadcast data to the outside;
Control the weather information interface module to connect to a designated service server (weather service server), and when receiving the voice broadcast data, characterized in that it comprises a maritime information control module to control the voice output module to perform voice announcement broadcast Marine information provision application terminal based on the DGPS. 9. The method of claim 8,
The voice output module is a marine information providing application terminal based on DGPS, characterized in that the TTS module for converting text information into voice information. 9. The method of claim 8,
The smart terminal further includes an image processing module that decodes the image data of the weather report / diary / prediction / image data received when the service server (weather server) is connected through the weather information interface module (Socket) and displays the image data on the screen. Marine information providing application terminal based on the DGPS, characterized in that comprises. 9. The method of claim 8,
The smart terminal, after driving the application to search for a buoy, a lamp, or a lighthouse that exists inside the search distance specified on the basis of the current position on the camera preview to display the iconized,
When selecting the buoy or lighthouse icon or the lighthouse icon, the ID of the corresponding lighthouse or lighthouse or lighthouse is extracted, and then transmitted to the service server (weather agency) to receive the data observed through the corresponding lighthouse or lighthouse or lighthouse and to display it on the screen. Marine information providing application terminal based on DGPS, characterized in that it is intended to give. 9. The method of claim 8,
The smart terminal records the location of the net installed on the sea, the location of the fish farm or the point of catching the fishing point, and further includes a POI function and a marker function to call the marine information based on the DGPS Provide application terminal.

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