JP2017126150A - Ship information retrieval system, ship information retrieval method and ship information retrieval server - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ship information retrieval system, ship information retrieval method and ship information retrieval server that are ease of use.SOLUTION: A ship information retrieval system comprises; a retrieval server 1; and an imaging device 4 that acquires a location and direction of a state where a display unit is caused to display a shooting target ship to output the location and direction thereof to the retrieval server 1. The retrieval server 1 includes: a geography database 5 that stores geography information on an area including a shooting location to be transmitted from the imaging device 4; a ship database 6 that associates a navigation location of a ship with information relevant to the ship to store the navigation location thereof; navigation location analysis means 8 that specifies the navigation location indicated by a retrieval vector having a direction to be appointed by shooting direction information with shooting location information set in a geographical space due to the geography information as a start point; and retrieval means 9 that retrieves the ship database 6 under a condition of a coincidence with the navigation location specified by the navigation location analysis means 8 or an approximation of the navigation location specified thereby, and extracts relevant information on the shooting target ship.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ship information search system, a ship information search method, and a ship information search server.

  As a system that can search for information related to a ship, a system described in Patent Document 1 has been known. In this conventional example, the system is a control having an infrared camera disposed in a place where the sea of a predetermined area including a harbor and a strait can be seen, and a database in which information on a ship including a ship name, a register, and a navigation route is recorded. A display device is provided, and the database is searched based on ship name data acquired by a character recognition unit of the control / display device from an image captured by the infrared camera.

JP 2001-186504 A

  However, the above-described conventional example is troublesome because it is necessary to install an infrared camera in a harbor or the like, and the ship name cannot be photographed depending on the navigation posture of the ship and cannot be searched. There is.

  The present invention has been made to solve the above drawbacks, and an object of the present invention is to provide a ship information search system and a ship information search method that are excellent in usability. Another object of the present invention is to provide a ship information search server that can be used in the ship information search system and the like.

  In recent years, for the purpose of coping with terrorism, it has been required for large vessels to be equipped with an automatic identification system (AIS). This AIS wirelessly transmits related information such as the ship name and navigation position of the ship that is installed, and by receiving this information, the ship can be easily identified. As described above, the duty to install is limited to large ships at the present time, but since grasping the ship's relation information is useful for maritime traffic management, there is room for expansion to almost all ships in the future. Yes, even at the present time, it may be optionally mounted on a small vessel.

  On the other hand, with the fact that ship-related information can be easily acquired as AIS information as described above, a web service that integrates and displays AIS information of various ships on a map has also appeared. For this reason, if a portable information communication device is used, the attribute information can be inquired at a place where the ship can actually be seen, such as the Gulf. However, in this case, the position of the target ship must be collated on a map, and there is a concern about the effort.

The present invention was made in consideration of the above circumstances,
Search server 1;
A photographing device 4 that acquires the position and direction of the state in which the photographing target ship 3 is displayed on the display unit 2 and outputs the obtained position and direction to the search server 1;
The search server 1
A geographic database 5 storing geographic information of an area including a photographing position transmitted from the photographing device 4;
A ship database 6 for storing information related to the ship in association with the navigation position of the ship;
Navigation position analysis means 8 for specifying the navigation position indicated by the search vector 7 having the direction specified by the imaging direction information starting from the imaging position information set in the geographic space by the geographic information;
Provided is a ship information search system having a search means 9 for searching the ship database 6 and extracting the relation information of the ship 3 to be photographed on the condition that it matches or approximates the navigation position specified by the navigation position analysis means 8. By doing so, the above-described object is achieved.

  According to the present invention, the ship information search system transmits the shooting position and direction of the shooting target ship 3 from the shooting device 4 to the search server 1, and the shooting direction information from the shooting position information set in the geographic space in the search server 1. The search vector 7 having the direction indicated by is set to specify the navigation position indicated by the imaging device 4, and the ship database 6 is searched based on the navigation position to extract the relationship information of the imaging target ship 3. The extracted relation information can be transmitted from the search server 1 to the photographing apparatus 4 and displayed on the display unit 2 such as a finder provided in the photographing apparatus 4.

  Therefore, according to the present invention, it is possible to easily obtain ship attribute information simply by photographing with the photographing device 4. In addition, the inquirer himself / herself photographs the ship to identify the navigation position, not the target ship itself, in other words, it captures the navigational water surface position from the imaging direction as if the subject is transparent. Thus, even when the photographing itself is insufficient such as being out of focus, the related information can be obtained. For this reason, a special photographing skill is not required for the inquirer himself.

  More specifically, the navigation position is specified as described above. More specifically, the geographic database 5 has a numerical surface model (DSM) including the water surface 10, and the navigation position analysis means 8 intersects the water surface 10 with the search vector 7. The position can be specified, and the navigation position can be easily specified by the search vector 7 in the geospace. In addition, the water surface 10 measures the geography including the bottom topography using a narrow multi-beam, for example, extracts a water area based on the altitude value, and sets a plane with an altitude value of 0 in the entire water area, or It is possible to set by using a non-measurable area of the near-infrared laser as the water area extraction described above.

  Further, in this case, if the search server 1 is configured with the update means 11 for setting and updating the water surface 10 altitude based on the tide level information, the navigation position specified by the shooting is detected in the sea area where the tide level fluctuates due to the tide. Since the position accuracy can be improved, for example, the search accuracy in remote imaging can be further increased. That is, the navigation position of a ship is generally sufficient if the latitude and longitude, that is, the plane coordinates can be specified, but the elevation position accuracy is improved by including the elevation angle in the imaging direction, thereby improving the plane position accuracy of the obtained navigation position. To do.

  The imaging device 4 described above can be configured by a portable information communication device having a camera function, such as a smartphone, a tablet computer, or a wearable computer. In this case, the shooting position and direction can be easily obtained by using a GPS (GNSS) function or an electronic compass function provided in a smartphone or the like.

  Further, the altitude coordinates of the shooting position can be determined based on the shooting position itself, in other words, based on the above-mentioned GPS survey results. In the navigation position analysis means 8, a predetermined standard is set for the ground altitude of the shooting position. If the altitude position calculated by adding the shooting height 12 is used for the shooting position information, the position accuracy can be further improved as compared with the position accuracy in the generally low altitude direction of GPS. The standard shooting height 12 can be determined by experimentation. For example, in the case of the above-described smartphone, the standard shooting height 12 is set to a level slightly lower than the standard eye height position based on a rule of thumb. It's enough.

  Furthermore, the improvement of the position accuracy of the navigation position is achieved by setting the target mark 13 that guides the display position of the imaging target ship 3 in the imaging device 4 so that the inquirer can appropriately perform the imaging operation, thereby improving the direction accuracy. It can also be done by raising it.

Further, according to the present invention, the above-described object is
The search server 1 acquires the position and direction of the state where the imaging target ship 3 is displayed on the display unit 2 from the imaging device 4 through the communication network 14,
Next, the search server 1 specifies the navigation position indicated by the search vector 7 having the direction specified by the shooting direction information starting from the shooting position information set in the geographic space based on the geographic information. This is accomplished by providing a ship information search method that searches the ship database 6 based on the navigation position and extracts information related to the imaging target ship 3.

Further, the search server 1 described above
Communication means 15 with the imaging device 4;
A geographic database 5 storing geographic information of an area including the shooting position of the shooting target ship 3 transmitted from the shooting device 4;
A ship database 6 for storing information related to the ship in association with the navigation position of the ship;
The navigation position indicated by the search vector 7 having the direction specified by the shooting direction information related to the shooting direction transmitted from the shooting device 4 with the shooting position information set in the geospace in the geographic database 5 as the starting point. Navigation position analysis means 8 to be identified;
A ship information search server having search means 9 for searching the ship database 6 and extracting the relationship information of the photographic object ship 3 on condition of coincidence or approximation with the navigation position specified by the navigation position analysis means 8. Is possible.

  The ship information search server 1 and the search server 1 described above can configure the ship database 6 by utilizing the above-described web service.

  As is clear from the above description, according to the present invention, it is possible to provide a ship information search system, a ship information search method, and a ship information search server that are excellent in usability, and to improve ship management efficiency or viewability. Can be increased.

It is a block diagram which shows a ship information search system. It is a figure which shows an imaging device, (a) is a block diagram, (b) is a front view. It is a figure explaining the imaging | photography situation, (a) is a principal part longitudinal cross-sectional view, (b) is a top view. It is a flowchart of ship information search processing.

  1 to 4 show an embodiment of the present invention. In this embodiment, as shown in FIG. 1, the ship information search system is configured by connecting the search server 1 and an appropriate number of photographing devices 4 so that they can communicate with each other via a communication network 14.

  The search server 1 includes a geographic database 5, a ship database 6, a navigation position analysis unit 8, a search unit 9, an output data generation unit 21, an update unit 11, and a communication unit 15 that are controlled and operated by the control unit 20. The communication means 15 makes the communication network 14, specifically the Internet.

  The geographic database 5 constitutes a numerical surface layer model in which elevation information is expressed in grid units each having a predetermined length, and the range extends to a water area. As will be described later, in this embodiment in which a vessel that searches for related information navigates the sea area, the sea area is extracted by a plane (water surface 10) having an elevation value of 0 indicating the sea surface. The numerical surface layer model including the water area is formed by setting a plane having an elevation value of 0 in the water area extracted from the elevation value after measurement including the bottom topography using a narrow multi-beam.

  The ship database 6 stores the navigation position of a ship and information related to the ship in association with each other. Examples of the related information include a ship ID (identification code) and a ship name as shown in FIG. The ship's attribute information, navigation position, latest reception date and time of AIS information, destination, wake, etc. are set. Such relation information is formed by fetching from a web service of AIS information such as a so-called live ship map through the communication means 15.

  The navigation position analyzing means 8 sets shooting position information in a geographic space constituted by the numerical surface layer model of the geographic database 5 based on the shooting position received by the communication means 15, and similarly the communication means 15. The search vector 7 starting from the shooting position information is set on the basis of the shooting direction received by the above, the intersection position of the search vector 7 with the water surface 10 is extracted, and the position information is calculated as the navigation position. To do. The altitude position information in the shooting position information is composed of an altitude position calculated with respect to the ground altitude of the shooting position with respect to the standard shooting height 12, and the standard shooting height 12 is a smartphone as the shooting device 4 as described later. In this embodiment where is used, the height is set 15 cm lower than the standard eye height position.

  The search means 9 searches the above-mentioned ship database 6 based on the navigation position, and extracts the relation information of the ship taking the navigation position. The extracted relation information, that is, the search result is processed into data to be displayed on the display unit 2 of the smartphone 4 by the output data generation means 21. As such data, in addition to text data such as a ship name, it is possible to include an image taken in advance for the ship, thereby facilitating the correctness determination of the search result by the inquirer.

  The updating means 11 acquires tide level information, navigation position information, and the like from the Internet through the communication means 15, and updates the geographic database 5 with the acquired tide level information and the ship database 6 with the navigation position. The update process of the geographic database 5 is performed by changing the elevation value, which is the extraction standard of the water area, based on the tide level information, and setting the water surface 10 that takes this elevation value. The ship database 6 is updated by adding the navigation position and the latest reception date and time in the database. In addition, acquisition of the tide level information, navigation position, etc. by the update means 11 is made by accessing the appropriate website which provides such information, for example.

  On the other hand, the photographing device 4 is a smartphone as described above, and the smartphone 4 has a camera function in addition to the information processing function and the communication function. As shown in FIGS. 2A and 2B, the apparatus housing 22 includes a display unit 2 such as an LCD serving as a display, and an operation unit 23 including operation buttons used for menu selection at the time of information processing. Provided. In FIG. 2B, reference numeral 25 denotes a call port.

  The photographing apparatus 4 includes a photographing position acquisition unit 27 that is controlled by the control unit 26 to obtain a photographing position at the time of photographing, a direction obtaining unit 28 that obtains a horizontal direction at the time of photographing, and an elevation angle at the time of photographing. Is provided with an elevation angle acquisition means 29 for acquiring the above, a camera unit 30 that performs the above-described camera function, and a communication unit 31. The communication unit 31 makes the Internet 14 using wireless communication. The photographing position acquisition means 27 is a GPS receiver, and the azimuth acquisition means 28 and the elevation angle acquisition means 29 are electronic compass, that is, a three-axis type geomagnetic sensor, for example, combined with a three-axis acceleration sensor. In addition to the azimuth, the elevation angle is also detected and cooperates to function as an imaging direction acquisition unit.

  As shown in FIG. 2A, the camera unit 30 includes a lens unit 30a, a focusing unit 30b, and a mark setting unit 30c. The lens unit 30a and the focusing unit 30b cooperate to realize an autofocus function. The control unit 20 collects the respective information from the photographing position acquisition unit 27 and the photographing direction acquisition unit when the focus coincidence state is reached, and transmits the information to the search server 1 via the Internet via the communication unit 31. The control unit 20 can detect the in-focus state by detecting a focusing completion signal from the autofocus function, but can be used such as half-pressing the operation unit 23 in a state where the smartphone 4 is set in the shooting mode. It is also possible to detect an autofocus lock operation by a person.

  The mark setting unit 30c displays the target mark 13 that guides the display position of the shooting target ship 3 in the shooting mode described above, and the target mark 13 is displayed on the display unit 2 as shown in FIG. In FIG. 4, the image center is made up of a diagram for easy understanding.

  FIGS. 3A and 3B model the display state of the imaging target ship 3 on the display unit 2 by the imaging apparatus 4 described above. The user 33 on the quay 32 has a depression angle (α) and an azimuth angle. By holding the smartphone 4 toward the vicinity of the draft line in the center of the hull by (θ), the search line (search vector 7) indicated by the two-dot chain line captures the sea level position (mark in the figure) in the center of the hull. In FIG. 2 (a), 10 is the sea level, the solid line shows the actual one, and the two-dot chain line shows the one virtually set in the geographic space. Further, in FIG. 3B, a circle 34 indicates a shooting point.

  FIG. 4 shows the operation of the ship information retrieval system described above. First, when the user 33 sets the smartphone 4 in the shooting mode toward the shooting target ship 3 and a focus match is detected in the camera unit 30 (step C1), the control unit 26 sets the shooting position acquisition unit 27 and the direction acquisition unit 28. And corresponding information is acquired from the elevation angle acquisition means 29 (step C2). Next, the control unit 26 generates a search request including the imaging position, azimuth, and elevation angle and transmits the search request from the communication unit 31 to the search server 1 (step C3), and thereafter receives the search result from the search server 1. Wait (step C4).

  On the other hand, when receiving a search request from the smartphone 4 (step S1), the search server 1 first analyzes the navigation position from the photographing position, the azimuth, and the elevation angle (step S2). In the analysis of the navigation position, the altitude value of the imaging position is calculated by adding the standard imaging height 12 to the ground elevation of the quay 32 and the search vector 7 is set in the geographic space of the geographic database 5 to set the water surface. 10 is identified. When the navigation position is calculated in this way, the ship database 6 is searched to extract the relationship information of the imaging target ship 3 (step S3), set in the communication means 15 and transmitted to the smartphone 4 (step S4).

  When receiving the search result from the search server 1 (step C4), the imaging device 4 displays the received information on the display unit 2 (step C5) and ends the process.

  In the above-described embodiment, the focus of the camera unit 30 is used as a condition for the transmission of the shooting position and the like from the shooting device 4, but it is also possible to detect the operation of the operation unit 23 instead. It is. Further, the search server 1 may be physically constituted by a single server computer or a plurality of server computers. For example, the ship database 6 is not provided in the search server 1 and other database servers are provided. It is enough even if equipped.

DESCRIPTION OF SYMBOLS 1 Search server 2 Display part 3 Image | photographing object ship 4 Imaging device 5 Geographic database 6 Ship database 7 Search vector 8 Navigation position analysis means 9 Search means 10 Water surface 11 Update means 12 Standard imaging height 13 Target mark 14 Communication network 15 Communication means

Claims (7)

A search server;
A photographing device that obtains the position and direction of the state where the photographing target ship is displayed on the display unit and outputs the obtained direction to the search server;
The search server
A geographic database storing geographic information of an area including a photographing position transmitted from the photographing device;
A ship database for storing information related to the ship in association with the navigation position of the ship;
Navigation position analysis means for specifying a navigation position indicated by a search vector having a direction specified by imaging direction information starting from imaging position information set in the geographic space by the geographic information;
A ship information search system comprising: search means for searching the ship database and extracting related information of a ship to be photographed on condition of matching or approximation with the navigation position specified by the navigation position analysis means. The geographic database has a numerical surface model including a water surface;
The ship information search system according to claim 1, wherein the navigation position analysis unit specifies a position where the search vector intersects the water surface.   The ship information search system according to claim 2, wherein the search server includes an update unit that sets and updates a water surface elevation based on tide level information.   The ship information retrieval system according to any one of claims 1 to 3, wherein the navigation position analysis means uses an altitude position calculated by adding a predetermined standard shooting height to the ground altitude of the shooting position as shooting position information. .   The ship information search system according to any one of claims 1 to 4, wherein a target mark that guides a display position of a ship to be photographed is set in the photographing apparatus. The position and direction of the state where the imaging target ship is displayed on the display unit are acquired from the imaging device by the search server through the communication network,
Next, the navigation server specifies the navigation position indicated by the search vector having the direction specified by the imaging direction information starting from the imaging position information set in the geographic space based on the geographic information, and the search server sets the navigation position to the navigation position. A ship information search method for searching a ship database based on the information and extracting information related to a ship to be photographed. Means for communicating with the imaging device;
A geographic database storing geographic information of an area including the imaging position of the imaging target ship transmitted from the imaging device;
A ship database for storing information related to the ship in association with the navigation position of the ship;
Navigation that specifies a navigation position indicated by a search vector having a direction specified by imaging direction information transmitted from the imaging apparatus, with the imaging position information set in the geographic space in the geographic database as a starting point Position analysis means;
A ship information search server comprising search means for searching the ship database and extracting relationship information of a ship to be imaged on condition that the ship position is identified or matched with the navigation position specified by the navigation position analysis means.

Images