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Navigation plotting device and using method

A plotting and square technology, applied in the field of nautical plotting devices and nautical plotting, can solve the problems of low mapping efficiency, storage difficulty, inconvenience, etc., and achieve the effect of easy equipment storage, easy hand-held carrying, and small footprint.

Active Publication Date: 2021-10-29
NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The nautical parallel ruler can only realize the function of drawing a straight line and cannot measure the angle, which is inconvenient
The operation of the navigation settable is cumbersome and time-consuming when drawing multiple direction lines in the chart operation, and there will be relatively large errors in the translation process of drawing the direction lines. The bidirectionality of the drawn lines may easily lead to wrong judgments. As a result, the reading of the degree is wrong, the method of use is complicated and difficult to learn, and two sets of triangles need to be prepared at the same time, and it is not convenient to collect and use
In addition, when drawing, you need to use multiple drawing tools at the same time, which is inconvenient to carry and low in drawing efficiency
Multiple drawing tools will also bring about the problems of large space occupied by drawing calculations, difficult storage, easy loss, and difficulty in unfolding and collecting

Method used

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  • Navigation plotting device and using method
  • Navigation plotting device and using method
  • Navigation plotting device and using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] In the navigation plotting device provided by this embodiment, the upper right corner of the bottom square panel is marked with a mileage reading indicator arrow along 45° to the center of the square, and a speed scale (knot) in logarithmic form is marked with a radius of 26.5mm relative to the center of the square, The speed scale is 100 and the logarithmic base is 2 (all scales in this slide rule are in base 2).

[0068] The movable turntable in the middle layer is made of transparent material. From the outside to the inside, the mileage (nautical miles, the range is 1000, all the conversion coefficients of this slide rule are 36, and the radius is 110mm), pressure (Pascal, the range is 29694×10 3 , radius is 107mm), time (hour, range is 1000, radius is 72mm), pressure (Pascal, range is 1200, radius is 49mm), time (minutes, range is 1000, radius is 39mm) marked with 5 circle logarithms Form scale.

[0069]The upper plotting turntable 3 marks the centrifugal ray auxil...

Embodiment 2

[0072] For the legend problem: the true heading of the ship is 000°, the speed in the fog is 9 knots, the true bearing and distance of the incoming ship measured by the radar are as follows: 0800 045°7.0′; 0805 045°6.0′; 0810 045°5.0′, using the above navigation plotting The device solves the following problems through manual plotting and drawing:

[0073] (1) In order to allow the incoming ship to pass at the shortest distance of 2.0 nautical miles from the port side of the ship, the new course is scheduled to change to the starboard at 0815;

[0074] (2) If it is scheduled to change direction when it is 4.5 nautical miles away from the incoming ship, the new course that allows other ships to pass at the shortest distance of 2.0 nautical miles from the port side of the own ship.

[0075] Among the above numbers, the first number combination, in the description of "abcd", the first two numbers ab means hour, the last two numbers cd means minute, 0800 means 8:00, and the second...

Embodiment 3

[0082] Adopt the navigation plotting device disclosed by the present invention to carry out navigation depth conversion, such as Figure 15 As shown, the mileage indicator arrow on the square bottom plate is aligned with the current pressure value, and the upper plotting dial is rotated to align the speed indicator line with 1. At this time, the time / depth indicator line is the corresponding depth value.

[0083] It can be seen that, utilizing the navigation plotting device of the present invention, the functions of various navigation plotting tools such as the current navigation set square, ruler, protractor, compasses, parallel ruler, T-square, and square can be completed, and because the navigation plotting device of the present invention Components are assembled and integrated, the relative movement relationship is fixed, and the plotting accuracy is faster, more convenient, and more accurate than independent tool combinations.

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Abstract

The invention discloses a navigation plotting device and a using method. The device comprises a bottom-layer square panel, a middle-layer movable turntable, an upper-layer plotting turntable, a rotating ruler and a movable scale; a mounting hole is formed in each of the centers of the bottom-layer square panel, the middle-layer movable turntable and the upper-layer plotting turntable, a mounting hole is formed in one end of the rotating ruler, and a central shaft sequentially penetrates through the mounting holes of the bottom-layer square panel, the middle-layer movable turntable, the upper-layer plotting turntable and the rotating ruler, so that the middle-layer movable turntable, the upper-layer plotting turntable and the rotating ruler can freely rotate around the central shaft; and one end of the movable scale is movably mounted on the rotating ruler through a hinge shaft, so that the movable scale can move in the length direction of the rotating ruler through the hinge shaft and can rotate relative to the rotating ruler by taking the hinge shaft as a rotating shaft. Compared with an independent tool combination, the navigation plotting device has the advantages of high plotting precision and convenience in use.

Description

technical field [0001] The invention belongs to the technical field of nautical chart operations, and in particular relates to a navigation plotting device and a method for using the device for navigation plotting. Background technique [0002] Radar manual plotting is to use the radar to obtain the surrounding environment and sea conditions of the own ship. With the help of the ship's maneuvering map, it is determined what measures the ship should take and how to take measures when the incoming ship poses a collision threat to the ship, so as to avoid collisions and ensure that the ship is safe. Can sail safely in various situations. During the process, the ship operation map used has two inner and outer circles of degrees, auxiliary lines for distance and azimuth, and various scale marks on the coordinate axes. The main function of the scale is to convert distance and time. [0003] Both marine surveying and radar manual mapping require the use of plotters and drawing too...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L13/00
CPCB43L13/00
Inventor 于化鹏庹洲慧李子圆王重阳方宇晨
Owner NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI
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