JPH05298600A - Navigation supporting processor - Google Patents

Abstract

PURPOSE:To reduce the operation of a mate and to safely navigate a ship by automatically plotting a route on a chart by inputting preferential informations about the position of starting/arriving places, a departure schedules time, an economical navigating speed and an arriving scheduled time. CONSTITUTION:At the time of inputting the starting/arriving points and the starting/arriving scheduled dates/times, the route is automatically plotted on the chart screen to make a navigation schedule. Then, necessary information such as average speed, expected fuel consumtion quantity, etc., is simultaneously inputted to support the navigation schedule. When the schedule is decided, it is registered in data bases 2 to 4. While navigation, the chart is usually displayed on a display 8. Of course, the line of the route prepared by the navigation schedule and that of actual navigation are shown on the chart. In order to navigate on the line of the route of the navigation schedule by obtaining information of latitude/longitude from a satellite, each control signal output device 9 sends a control signal to various machines to automatically operate the ship.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation support processing device for supporting safe navigation.

[0002]

2. Description of the Related Art Conventionally, a voyage plan is always made before a voyage to ensure a safe voyage, and the route is entered on a nautical chart using a triangle ruler, compass, divider, etc. Create a planning table. However, the experience of navigators is the task of making this voyage plan.

During the voyage, it is necessary not only to always know the current position, but also to know the current course, speed, weather, and trends of other ships.

As a method of knowing the current position, a method of knowing it by a person such as terrestrial navigation or astronomical navigation, a method of knowing by radio waves from a ground station such as radio navigation, or a position information from a satellite such as satellite navigation is used. There is a way to know.

There are two types of course, one is a method of steering by a person based on the direction from a magnetic compass or a gyro compass, and the other is a method of automatic steering in which a course is designated by an automatic steering device and the course is kept constant.

It is necessary to know two kinds of speed, namely ground speed and water speed. The speed to ground is obtained by measuring the distance advanced from the nautical chart in a certain period of time using a divider, and dividing it by a certain time to obtain the speed, and the speed to water is obtained using a speedometer to the water.

For the weather, the temperature, humidity, seawater temperature, atmospheric pressure, wind direction, wind speed, and weather can be checked at regular intervals to know the changes in the weather on the ship, and a method of obtaining a weather map by facsimile to know a wide range of weather conditions. is there.

There is a method of directly knowing the trend of another ship, a method of monitoring and knowing the radar, and a method of automatically knowing the danger with an alarm when it is judged to be dangerous by an alarm.

[0009]

However, in such a conventional example, during the navigation, each work often depends on human work, and in operating a ship with a small number of crews called a modernized ship, There is a problem that the work per person increases.

Further, since the work for making a navigational plan requires a certain amount of experience or more, it is difficult for an officer with a low experience value to plan an optimal navigation route.

[0011]

A navigation support processing device of the present invention stores a nautical chart information database in which each nautical chart is stored, and experience information of a captain who can make a vessel maneuvering decision based on a boarding history. It has an updatable captain experience information database and various navigation record information databases that can store navigation plans and routes actually traveled and various navigation record information. By entering the scheduled time, and by inputting information that gives priority to economic speed and scheduled arrival time, the route is automatically drawn on the nautical chart, and the scheduled passage time of the target is calculated and displayed to prepare the voyage plan. In addition to displaying the current position on the nautical chart during the voyage,
Obtaining weather information, trends of other vessels and engine operation information from various dynamic information, in case of danger avoidance operation and route change are automatically performed, and those voyage records are also automatically recorded. It is characterized in that the recorded information can be taken out to the output device, and when the power is lost, it is equipped with a storage battery capable of storing data, and when power is supplied again, it can be used again.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a process explanatory diagram when planning a voyage, and FIG. 3 is a process explanatory diagram during a voyage.

In the figure, reference numeral 1 is an input device, 2 is a nautical chart information database, 3 is a master experience information database, 4 is various voyage record information databases, 5 is a voyage assistance processing device, and 6
Indicates various dynamic information input devices, 7 indicates a printer, 8 indicates a display, and 9 indicates various machine control signal output devices.

This device is used during a voyage plan carried out before the voyage and during a voyage from departure to entry.

Data is input from a person through the input device 1,
With reference to the non-updatable nautical chart information database 2, the updatable captain experience information database 3 and the updatable various voyage record information database 4, information is input in real time from various dynamic information input devices 6, and the voyage assistance processing device 5 Process the data with the Captain's experience information database 3 if necessary.
And the various voyage record information database 4 is updated.
After being processed by the navigation support processing device 5, data is output to the printer 7 and the display 8 and control signals are sent from various machine control signal output devices 9 to various machines. Also, the voyage record within the duty time is registered in the various voyage record information database 4 for each orthogonal time.

First, regarding the voyage plan before the voyage, the departure point and the arrival point, the scheduled departure date and time, and the scheduled arrival date and time are also input (process 101). Then, the route is automatically drawn on the nautical chart screen and the voyage plan is prepared (process 102). At the same time, provide necessary information such as average speed and expected fuel consumption at the same time to support the navigation plan. Further, the voyage can be planned by prioritizing the estimated arrival date and time by inputting the average speed, for example. The voyage plan can be partially modified (process 103), and the information required at that time can be output to a display or printer. If the plan is decided, it is registered in the database (process 104).

During the voyage, a nautical chart is usually displayed on the display. Of course, the line of the route created by the navigation plan and the line of the route actually sailed are shown on the chart. The marine vessel maneuvering information from the satellite is latitude and longitude (Process 1
1) is obtained and the control signals are sent from the respective control signal output devices to various machines so as to be on the line of the route planned in the navigation plan, and the ship is automatically operated (process 22). Information on other vessels and obstacles (process 12) is obtained from the radar (process 11), evasion operation (process 13) is performed, and after danger avoidance, automatic marine vessel maneuvering is performed so that the ship returns to the line of the route planned by the navigation plan. Processing 22) is performed. If stormy weather is expected from the information from the meteorological satellite and the weather information of the own ship (Process 11), the on-duty officer is first notified on the display. When it is determined that the navigation plan needs to be changed (process 14), the navigation plan is changed (process 15). The voyage plan can be changed (process 15) even when the voyage plan needs to be changed during the voyage (process 14) due to other dangers or changes in the arrival date and time.

Normally, the power is supplied by the generator onboard the ship, but when a sudden load is applied to the generator, the power is not temporarily supplied until the generator is stopped and the auxiliary generator is started. When the power is lost (process 18), the storage battery records the voyage records up to the time of power loss in the memory in the navigation support processor (process 19), and normally only the latitude and longitude are supplied until the power is supplied. As in the case of real time sampling (process 20), if power is supplied (process 21), various dynamic information is input again (process 11), and the normal use state is restored. Further, in order to prevent the data from being lost in such a case, the voyage record within the duty time is registered in each voyage record information database at every orthogonal replacement time (process 16) (process 17).

The nautical chart used here is a nautical chart issued by the Japan Coast Guard. Because of the high reliability of the nautical chart, it can be used without any discomfort because it is the nautical chart that navigators usually use. The display for displaying the nautical chart uses a flat screen that can display the actual nautical chart in its actual size. Therefore, it is possible to use it together, such as performing position determination work by geodetic navigation using a triangle ruler or compass, which was performed in the past, and practicing geodetic navigation on this display screen.

In addition to the nautical chart that is normally displayed, the display can change the screen arbitrarily or display a screen of any other size on the screen to change weather conditions, trends of other ships, engine operation information, etc. It can display all the information necessary for maneuvering.

[0022]

As described above, according to the present invention, the work of the navigator can be greatly reduced and safe navigation can be performed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of processing at the time of voyage planning in the embodiment of FIG.

FIG. 3 shows a process explanatory diagram during a voyage in the embodiment of FIG.

[Explanation of symbols]

 1 Input Device 2 Chart Information Database 3 Master's Experience Information Database 4 Various Navigation Record Information Database 5 Navigation Support Processing Device 6 Various Dynamic Information Input Device 7 Printer 8 Display 9 Various Machine Control Signal Output Device

Claims (1)

[Claims] 1. A nautical chart information database in which each chart is stored, an updatable captain experience information database in which experience information of a captain who can make a maneuvering decision based on a boarding history is stored, and a voyage plan It also has various voyage record information databases that can store actual routes and various voyage record information. In the voyage plan, the origin and destination positions and the scheduled departure time are entered, and the economic operation speed and port entry schedule are also entered. By entering information that gives priority to time, the route is automatically drawn on the nautical chart, the scheduled passage time of the target is calculated and displayed, and the voyage plan is made.The current position on the nautical chart is displayed during the voyage. Not only is it displayed, but weather information, trends of other vessels, and engine operation information are also obtained from various dynamic information. The voyage record is automatically recorded, and the recorded information can be taken out to the output device. In case of power loss, it has a storage battery that can save data, and if power is supplied again, it will be used. A navigation support processing device characterized by returning to a state where it is possible to