KR101691535B1 - Apparatus of improving digital magnetic compass automatic calculation - Google Patents

Abstract

Disclosed is an apparatus of improving digital magnetic compass automatic calculation comprising: a digital magnetic compass (DMC) measurement module measuring azimuth, a high angle, and an inclination angle in a current position; a DMC calculation graphic user interface (GUI) module displaying an automatic compensation range of the azimuth and the high angle by magnetism measured in the measurement module with a predetermined area, and displaying two lines which mutually cross over the inclination angle; and a DMC automatic calculation module automatically initiating digital magnetic compass automatic calculation when a crossing point of the lines displayed in the DMC calculation GUI module is placed in the automatic compensation area. As stated above, in accordance with the apparatus of improving digital magnetic compass automatic calculation, an area in an error range of DMC calculation is predetermined to initiate automatic calculation in a relevant range to reduce a phenomenon restricted by accuracy of the DMC calculation by a user in a DMC calculation method having a GUI shape and, more effectively, quickly and accurately performs the DMC calculation. More specifically, efficiency of the DMC calculation is able to be improved more by an optimum area size in various conditions and situations as a size of an area in an error range is set based on various conditions such as an object, a DMC measurement posture, or the like having an effect on a magnetic field around the area.

Description

TECHNICAL FIELD [0001] The present invention relates to a digital magnetic compass,

The present invention relates to a digital magnetic compass, and more particularly, to an apparatus for improving automatic calculation of a digital magnetic compass.

A digital magnetic compass is used to measure the azimuth, elevation, and tilt angle of the target at the current measurement location.

Because the digital magnetic compass is very sensitive to the influence of the surrounding magnetic field, it is affected by the terrain, altitude, and magnetic objects around it. Therefore, it is necessary to perform a digital magnetic compass calculation before performing the measurement. Here, the calculation means that the peripheral magnetic field of the digital magnetic compass is measured in advance and then the compensation value is calculated and reflected in the measured value. Therefore, it is possible to cancel the influence of the peripheral magnetic field and to obtain an accurate measurement value.

There is a problem that it is very cumbersome and time consuming for the user because the DMC is required for each measurement position. Especially in military operations, quick and accurate measurement is required.

The digital magnetic compass is configured to move the digital magnetic compass to the azimuth, elevation, and tilt angles specified by the manufacturer, and obtain the magnetic field compensation value for the position. The more the designated position is, the more the compensation value for the peripheral magnetic field is increased, so that the digital magnetic compass can have an accurate value, but the DMC sticking time is increased by that much.

FIG. 1 and FIG. 2 are views for automatically setting the digital magnetic compass according to the related art.

1 (A) shows a value measured in a text form at a predetermined position, and FIG. 1 (B) shows a value measured in a GUI (graphic user interface) form.

In the case of the text form, it is very inconvenient and time consuming because the user must see the display and manually make a decision. In the case of the GUI method, as shown in FIG. 2, the intersection of the blue lines is configured to be made to coincide with the center of the screen exactly.

However, users often tend to get the compensation value at that point after the intersection of the blue line exactly coincides with the center of the screen. In such a case, the DMC stationary time becomes longer and interferes with the operational operation. Although there is no big difference when it comes close to a certain approximation even if it does not match the center of the screen, experimentally, users tend to pay more attention to accuracy.

DMC politics can be set differently according to various conditions, but users need to improve practical use or operational problems that focus on centering the screen with unconditional accuracy.

[0030]

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for automatically correcting a digital magnetic compass.

According to an aspect of the present invention, there is provided an apparatus for automatically calibrating a digital magnetic compass comprising: a DMC (digital magnetic compass) measurement module for measuring an azimuth angle, an elevation angle and a tilt angle at a current position; A DMC political graphic user interface (GUI) module for displaying the azimuth angle and the high-angle automatic compensation range measured by the DMC measurement module in a predetermined area and displaying the inclination angles with two mutually intersecting lines; And a DMC automatic positioning module for automatically starting an auto calculation of the digital magnetic compass when the intersection of the two lines displayed in the DMC stationary GUI module is located in the automatic compensation area.

The automatic compensation range setting module may further include an automatic compensation range setting module for adjusting and setting the size of the automatic compensation range according to a user's input.

The automatic compensation range setting module may be configured to set either a coarse correction or a fine correction according to the size of the automatic compensation area.

The automatic compensation range setting module may be configured to set the size of the automatic compensation area according to whether the user possesses an object that may affect the operation of the digital magnetic compass or whether the object exists in the vicinity .

The automatic compensation range setting module may be configured to set a size of a predetermined compensation area according to an object that may affect the operation of the digital magnetic compass.

The DMC measurement module may be configured to measure an azimuth angle and an elevation angle of the fixed target around the user's attitude.

Herein, the automatic compensation range setting module calculates an average value of the maximum error and the minimum error with respect to the measured azimuth and elevation angle, sets the size of the automatic compensation area to be smaller as the calculated average value is larger, The size of the automatic compensation area may be set to be larger.

According to the above-described digital magnetic compass automatic position correcting apparatus, the area within the error range of the DMC setting is preset in the GUI type DMC setting method and the setting is automatically started within the range, And it is possible to perform DMC politics more efficiently and quickly / accurately.

In particular, the area within the error range can be set based on various conditions, such as a thing that affects the surrounding magnetic field, or a DMC measurement posture, so that the efficiency of DMC politics Can be increased.

FIG. 1 and FIG. 2 are views for automatically setting the digital magnetic compass according to the related art.
3 is an exemplary view of an automatic politics GUI screen according to an embodiment of the present invention.
4 is an exemplary view of an automatic politic GUI screen according to another embodiment of the present invention.
FIG. 5 is a block diagram of an apparatus for improving automatic positioning of a digital magnetic compass according to an embodiment of the present invention. Referring to FIG.
6 is a schematic diagram illustrating a measurement posture for automatic positioning according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail to the concrete inventive concept. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, A, B, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

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

3 is an exemplary view of an automatic politics GUI screen according to an embodiment of the present invention.

Referring to FIG. 3, there is shown an example in which a DMC is automatically set by a graphic user interface (GUI) method. Even if the intersection of the cross lines does not exactly coincide with the center of the screen, it is configured to automatically start a position as long as it is positioned in a circle. Therefore, when the intersection is located only in the circle, the user does not need to ask about how close the intersection should be to the center of the screen, and the DMC state is automatically started without inputting the DMC command. It is possible to prevent the delay of DMC politics in the battlefield or battlefield.

4 is an exemplary view of an automatic politic GUI screen according to another embodiment of the present invention.

FIG. 4 shows an example in which the size of the circle in FIG. 3 is set in the left and right direction and the upper and lower directions, respectively, so that the error range, that is, the DMC station start range can be arbitrarily set. In operation management, DMC politics or precisely DMC politics must be outlined, and various DMC political conditions may vary depending on the influence or conditions of the surrounding magnetic field. The establishment of such a DMC political start range is a great help to carry out the DMC politics efficiently according to the situation.

FIG. 5 is a block diagram of an apparatus for improving automatic positioning of a digital magnetic compass according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 5, the apparatus 100 for automatically correcting a position of a digital magnetic compass according to an embodiment of the present invention includes a DMC measurement module 110, a DMC political GUI module 120, a DMC automatic positioning module 130, And a compensation range setting module 140.

Hereinafter, the detailed configuration will be described.

The DMC measurement module 110 may be configured to measure the azimuth, elevation, and tilt angle at the current location. The DMC measurement module 110 can measure the azimuth angle by measuring the magnetic field at the current position.

The DMC construc- tion GUI module 120 may be configured to display the azimuth angle and the elevation angle automatic compensation range measured by the DMC measurement module 110 in a predetermined area.

Here, the automatic compensation range means the tolerance range of DMC setting. In FIG. 4, the automatic compensation range is indicated by a circle.

The DMC political GUI module 120 may be configured to display the tilt angles with two mutually intersecting lines.

The DMC automatic positioning module 130 can be configured to automatically start an auto calculation of the digital magnetic compass when the intersection of the two lines displayed in the DMC positioning GUI module 120 is located in the automatic compensation area. Here, the DMC automatic positioning module 130 can be configured to receive, in real time, the coordinates of the cross line and the area from the DMC constellation GUI module 120 and to determine in real time whether the intersection of the cross lines is located within the automatic compensation range have. The DMC automatic settlement module 130 may be configured to automatically start the DMC automatic settlement even if there is no DMC start command of the user according to the determination result.

The automatic compensation range setting module 140 may be configured to adjust and set the size of the automatic compensation area according to the user's input. The automatic compensation area may be manually set to its size or area coordinates according to the user's input, or may be set automatically.

The automatic compensation range setting module 140 may be configured to set either a coarse correction or a fine correction according to the size of the automatic compensation area. It can be set to any one according to the user's setting.

Here, the automatic compensation range, that is, the error tolerance range or the automatic range start range can be automatically set by the following two methods.

First, the automatic compensation range setting module 140 is configured to set the size of the automatic compensation area according to whether the user possesses an object that may affect the operation of the digital magnetic compass, or whether the object exists in the vicinity .

Such an object may be previously measured through experiments and configured to set the size of the automatic compensation region in advance according to the influence of the magnetic field. Such items may include iron, military trucks, ships, rifles, screwdrivers, ball bearings, and the like.

Such an object is selected and input by the user, and the automatic compensation range setting module 140 can automatically set it by referring to the size and coordinates of a predetermined automatic compensation area.

The second is to use the surrounding fixed target (target). Specifically, it is as follows.

First, the DMC measurement module 110 measures the azimuth and elevation angle of the fixed target in accordance with the user's attitude. At this time, the automatic compensation range setting module 140 may be configured to calculate an average value of the maximum error and the minimum error with respect to the azimuth and elevation angle measured above.

The automatic compensation range setting module 140 may set the size of the automatic compensation area to be smaller as the average value of the maximum error and the minimum error is larger and set the size of the automatic compensation area as the average value is smaller.

The larger the mean value of the error means that it is necessary to elaborate the DMC politics, and the smaller the mean value of the error means that the DMC politics can be carried out with a certain margin. Therefore, it is possible to improve the speed and efficiency of the DMC policy according to the situation by not taking time for the DMC policy.

For example, in Fig. 6, measurements are made for one fixed target standing or in front or sitting. When the average value of the error is 2 degrees or 0.2 degrees, the range of the circle is set to be smaller than 0.2 degrees in the case of 2 degrees.

The setting ratio or size may be configured to generate a table in advance through previously experimented values and to set a circle range by referring to the table.

It will be understood by those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the following claims will be.

110: DMC measurement module
120: DMC political GUI module
130: DMC automatic stationary module
140: Automatic compensation range setting module

Claims (6)

A DMC (digial magnetic compass) measurement module for measuring azimuth, elevation and tilt angle at the current location;
A DMC political graphic user interface (GUI) module for displaying the azimuth angle and the high-angle automatic compensation range measured by the DMC measurement module in a predetermined area and displaying the inclination angles with two mutually intersecting lines;
And a DMC automatic positioning module for automatically starting auto calculation of the digital magnetic compass when the intersection of the two lines displayed in the DMC stationary GUI module is located in the automatic compensation area. The apparatus of claim 1, further comprising an automatic compensation range setting module for adjusting and setting the size of the automatic compensation area according to a user's input. The automatic compensation range setting module according to claim 2,
Wherein the controller is configured to set either a coarse correction or a fine correction according to the size of the automatic compensation area. The automatic compensation range setting module according to claim 2 or 3,
Wherein the controller is configured to set the size of the automatic compensation area according to whether the user possesses an object that may affect the operation of the digital magnetic compass or whether the object exists in the vicinity. Political improvement apparatus. The automatic compensation range setting module according to claim 4,
Wherein the controller is configured to set a size of a predetermined compensation area according to an object that may affect the operation of the digital magnetic compass. The method according to claim 2 or 3,
Wherein the DMC measurement module comprises:
And an azimuth angle and an elevation angle with respect to a fixed target around the user,
Wherein the automatic compensation range setting module comprises:
Calculating an average value of the maximum error and minimum error with respect to the measured azimuth angle and elevation angle and setting the size of the automatic compensation region to be smaller as the calculated average value is larger and increasing the size of the automatic compensation region as the calculated average value is smaller Wherein the digital microcomputer is configured so as to set the position of the digital compass.

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