JP4727320B2 - Method and system for monitoring / searching objects at sea by search boat - Google Patents

Description

  The present invention relates to a monitoring / searching method and system for monitoring or searching for an object floating, drifting or traveling on the sea.

  Marine victims or maritime ships are searched by ships. A radar search is also performed to supplement the visual search. Radar that is mounted on a ship and forms an image as a video results in a visual search of binoculars. A technique for forming a still image by scanning with a radar is known (see Patent Document 1 below). Further, a technique for processing the obtained image is known (see Patent Document 2 below).

JP 2000-188747 A JP 2002-063575 A

  By the way, there is no target in the open ocean, and as shown in FIG. 5, the search sea area 20 to be searched needs to search 10 km square in a short time, and the searcher 21 is small. Searching with the monitoring device 11 such as a laser radar while always confirming requires advanced technology.

  Therefore, as shown in FIG. 6, when searching the search sea area 20, since there is no target point on the sea unlike the ground, the search is performed in addition to the area A to be searched in one pass of the ship traveling. There is a region B and an overlooked region C. In such a case, there is a problem that duplication of search or missing search part occurs, and efficient search cannot be performed. In particular, the rescue of searchers in winter is a game of time, and the emergence of extremely efficient search methods is desired.

  In view of the above problems, the present invention provides a monitoring and searching method and system for monitoring or searching for an object floating, drifting or traveling on the sea that can reliably and efficiently monitor or search for an object on the sea. The issue is to provide.

A first invention of the present invention for solving the above-described problem is a monitoring / searching method for monitoring or searching for an object floating or drifting or traveling on the sea, and a GPS (Global Positioning System) receiver To obtain the position information of the search ship by receiving and processing the positioning radio wave from the GPS navigation satellite, and continuously acquiring the search history of the belt-like region so as not to overlook the search , the acquired search ship The position information and the search history of the belt-like area are displayed on the electronic chart, and the object is monitored or searched with the overlapping portion of the search not exceeding a predetermined allowable value so as not to perform overlapping monitoring or searching. in monitoring and searching method of marine object by searching ship characterized.

According to a second aspect of the present invention, in the first aspect of the present invention, there is provided a monitoring / searching method for an object on the sea by a search ship , wherein the search is performed after setting the search sea area.

According to a third invention, in the first or second invention, there is a monitoring / searching method for an object on the sea by a search ship , wherein a warning is issued when the oversight occurs.

According to a fourth invention, in any one of the first to third inventions, when the oversight occurs, a warning is issued, and the oversight area is searched, and a marine object is monitored by a search ship.・ It is in search method.

According to a fifth invention, in any one of the first to fourth inventions, there is a method for monitoring and searching an object on the sea by a search ship , wherein the search is performed by automatic control.

In a sixth aspect of the present invention, in any one of the first to fifth aspects, when monitoring or searching is performed by a plurality of ships, monitoring or searching is performed while sharing a plurality of position information and search histories of a plurality of belt-like regions. There is a method of monitoring and searching for an object on the sea by a search ship characterized by

A seventh invention is a monitoring / searching system for monitoring or searching for an object floating, drifting or traveling on the sea, a GPS receiver for receiving positioning radio waves from a GPS (Global Positioning System) navigation satellite, A data processing device for processing the positioning radio wave, displaying the position information of the search ship, and acquiring and processing the search history of the belt-like area, and the electronic chart showing the position information of the search ship and the search history of the belt-like area A display means for displaying above, confirming the position information of the search ship, and continuously checking the search history of the belt-like area so as not to overlook the search, and do not perform duplicate monitoring or searching monitoring and searching system for maritime objects by searching vessels, characterized in that the monitoring or searching an object of the overlapping portion of the search as follows predetermined allowable value as Located in.

According to an eighth aspect of the present invention, in the seventh aspect of the invention, there is provided a monitoring and searching system for an object on the sea by a search ship , characterized by having a warning device that issues a warning when the oversight is detected.

According to a ninth aspect of the present invention, in the seventh aspect of the invention, there is provided a monitoring / searching system for an object on the sea by a search ship , comprising an automatic control device for steering the search ship based on the position information.

A tenth invention is, in any one invention of the seventh to ninth, maritime object by searching ship characterized by having a data transmission and receiving apparatus to share the location information and the search history information of a plurality of search vessels In the surveillance and search system.

An eleventh aspect of the invention is a monitoring / searching system for an object on the sea by a search ship , characterized in that in any one of the seventh to tenth aspects of the invention, it has a data transmission / reception device for sending and receiving message data with other ships. is there.

According to the monitoring / searching method for monitoring or searching for an object floating, drifting or traveling on the sea according to the present invention, it is possible to reliably acquire the position of the ship by GPS information and to duplicate based on the monitoring or search history. Efficient monitoring or searching can be performed without any monitoring or searching performed or lack of monitoring or searching.
Moreover, according to the search system of the target object at sea, since it has a means for acquiring GPS information and a data processing device for confirming the ship position and navigation history, it is possible to perform efficient monitoring or search.

  Hereinafter, the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.

FIG. 1 is a conceptual diagram illustrating a configuration of a monitoring / searching system for monitoring or searching for an object according to the first embodiment. In the following embodiment, a search for searching for a drifter will be described. However, the present invention can be similarly applied to monitoring an unidentified object, a ship, and a suspicious ship.
As shown in FIG. 1, a monitoring / search system for monitoring or searching for an object floating, drifting or traveling on the sea is a GPS receiver that receives a positioning radio wave 13a from a GPS (Global Positioning System) navigation satellite 13. The search ship 10 has a monitor 12 such as a laser radar while processing the positioning radio waves and displaying the position information of the search ship 10 while confirming the ship position and navigation history. To search for the searcher.

  In addition, in FIG. 1, it is a figure which shows the state which is performing the turning operation and searching. Since the search ship 10 is moving forward, the two circles are not circles due to the advance, and the envelopes 16 and 17 of constant radius circles in which the center points of the circles increase on the time series are formed. Therefore, the effective search width of the search can be increased.

FIG. 1 shows a case where the search ship 10 starts searching in the search sea area 20, and the search ship 10 is provided with a data processing device (not shown) that processes information of the positioning radio wave 13 a from the GPS navigation satellite 13. The ship position is displayed on an electronic chart (not shown).
When the search is started, the navigation history is displayed on the electronic chart, and the search can be performed while always maintaining the area to be searched in one pass of the ship traveling.

  As a result, the searched area is clarified, it is possible to instantly grasp whether there is a double search or missing search, it is possible to improve the efficiency of search activities, improve search probability and search Time can be shortened.

  In addition, after the search, the history of the area that has already been searched is used to search for the area that is scheduled to be searched immediately, so that the overlapping portion is less than the allowable value and there is no oversight area. The direction may be automatically controlled. Here, the allowable value means that the overlapping portion is about 10 to 20%, but is not limited.

  As a result, the search boat is automatically maneuvered to the optimal position where there is no double search or search oversight, so the burden on the observer and the operator can be reduced, and the efficiency of search activities and the search probability can be improved. .

FIG. 2 is a conceptual diagram illustrating a configuration of a monitoring / searching system for monitoring or searching for an object according to the second embodiment. As shown in FIG. 2, when an oversight area C occurs in addition to the area A to be searched in one pass of the ship while searching, a warning is given to the operator, the monitor, etc. of the search ship 10. A warning generation device is provided.
When this warning is received, it is possible to search a region adjacent to the search history 3 after searching for a missing monitoring portion between the search history 2 and the search history 3 before moving to the next search.
Thereby, the search can be ensured.

FIG. 3 is a conceptual diagram illustrating a configuration of a monitoring / searching system for monitoring or searching for an object according to the third embodiment. As shown in FIG. 3, when the search area 20 is performed by a plurality of search ships 10-1, 10-2, 10-3, the positioning radio waves 13a from the GPS navigation satellites 13 are transmitted to the search ships 10-1. -3 are received, and the search ships 10-1 to 3 emit the message data 14 with each other to share each other's position and search history so that the searches do not overlap.
Note that L indicates the flow direction of the tidal current.

  As a result, it is possible to instantly grasp the situation such as double search of areas searched by other search ships and missing areas of search, etc., and it is possible to improve the efficiency of search activities and improve the search probability. .

  Further, as shown in FIG. 3, when the first search ship 10-1 searches the search area I and the second search ship 10-2 searches the search area II, the third search ship 10-3 By notifying the third search ship 10-3 of the search areas I and II of the first search ship 10-1 and the second search ship 10-2 and the information of each search ship The third search ship 10-3 can improve the search efficiency by searching for the search area III.

  And after one of the first and second search vessels searches its own search area, the search area in the last search area IV is searched, so that the search area in all search areas 20 is clear. Therefore, it is possible to grasp whether there is a double search or a search omission, and it is possible to improve the efficiency of the search activity, improve the search probability, and shorten the search time.

FIG. 4 is a conceptual diagram illustrating a configuration of a monitoring / searching system for monitoring or searching for an object according to the fourth embodiment. As shown in FIG. 4, when the search area 20 is performed by a plurality of search vessels 10-1, 10-2, and 10-3, the message data 14 are sent to the search vessels 10-1 to 10-3 to each other. By sharing the search history, the search is not duplicated.
Note that L indicates the flow direction of the tidal current.

  In the present embodiment, in the case where the first search ship 10-1 searches for the search area I, the search area is enlarged as time passes.

  In FIG. 4, the 1st search area | region I is the range searched in 1 hour, and the 1st search ship 10-1 is searching. In this case, the second search ship 10-2 and the third search ship 10-3 divide the second search area II in which the search is expanded, and search the search area II-1 and the search area II-2, respectively. Show.

And after the 1st search ship 10-1 completes the search of the search area I, it searches the search area II-3 of the 2nd search area II.
Thereby, an efficient search by a plurality of search ships becomes possible.

  As described above, the search method of the object on the sea according to the present invention is the ship position of the search ship at the time of searching for the distress, the ship and the unidentified ship drifting on the sea. Information and search history information can be grasped, a double search or a search with no search omission can be performed, and it is suitable for marine rescue.

It is a conceptual diagram which shows the structure of the monitoring and searching system which monitors or searches the target object concerning Example 1. FIG. It is a conceptual diagram which shows the structure of the monitoring and searching system which monitors or searches the target object concerning Example 2. FIG. It is a conceptual diagram of the monitoring and searching example which monitors or searches the target object concerning Example 3. FIG. It is a conceptual diagram of the monitoring and searching example which monitors or searches the target concerning Example 4. FIG. It is a conceptual diagram of a search sea area. It is a conceptual diagram which shows an example which monitors or searches the conventional target object.

DESCRIPTION OF SYMBOLS 10 Search ship 11 Monitoring apparatus 12 GPS receiver 13 GPS navigation satellite 14 Message data 20 Search sea area

Claims (11)

A monitoring and searching method for monitoring or searching for an object floating, drifting or traveling on the sea,
While receiving and processing the positioning radio wave from the GPS navigation satellite with a GPS (Global Positioning System) receiver, the position information of the search ship is acquired,
While continuously obtaining the search history of the belt-like area so as not to overlook the search, the position information of the obtained search ship and the search history of the belt-like area are displayed on the electronic chart, and duplicate monitoring or searching is performed. A method for monitoring and searching for an object on the sea by a search ship , wherein the object is monitored or searched by setting the overlapping portion of the search to a predetermined allowable value or less so as not to be performed . In claim 1,
A method for monitoring and searching an object on the sea by a search ship, wherein the search is performed after the search sea area is set. In claim 1 or 2 ,
A method for monitoring and searching for an object on the sea by a search ship , wherein a warning is issued when the oversight occurs. In any one of Claims 1 thru | or 3 ,
A monitoring and searching method for an object on the sea by a search ship , characterized by issuing a warning when the oversight occurs and searching for the overlook area. In any one of Claims 1 thru | or 4 ,
A method for monitoring and searching for an object on the sea by a search ship, wherein the search is performed by automatic control. In any one of Claims 1 thru | or 5 ,
A method for monitoring and searching for an object on the sea by a search ship , characterized by monitoring or searching while sharing a plurality of position information and search histories of a plurality of belt-like areas when monitoring or searching with a plurality of ships . A monitoring and searching system for monitoring or searching for an object floating, drifting or traveling on the sea,
A GPS receiver that receives positioning radio waves from a GPS (Global Positioning System) navigation satellite, a data processing device that processes the positioning radio waves, displays position information of search boats, and acquires and processes search history in a belt-like region And display means for displaying on the electronic chart the position information of the acquired search ship and the search history of the belt-like region ,
While confirming the location information of the search ship and continuously checking the search history of the belt-like area so that there is no oversight of the search,
A marine object monitoring / search system using a search ship , wherein the object is monitored or searched by setting the overlapping portion of the search to be equal to or less than a predetermined allowable value so as not to perform overlapping monitoring or searching . In claim 7 ,
A system for monitoring and searching for an object on the sea by a search ship, comprising a warning device that issues a warning when the oversight is detected. In claim 7 ,
A monitoring / search system for an object on the sea by a search ship, comprising an automatic control device for steering the search ship based on the position information. In any one of Claims 7 thru | or 9 ,
What is claimed is: 1. A system for monitoring and searching a marine object by a search ship, comprising a data transmission / reception device for sharing position information and search history information of a plurality of search ships. In any one of Claims 7 thru | or 10 ,
A marine object monitoring / search system using a search ship, comprising a data transmission / reception device for sending and receiving message data with other ships.

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