KR101416124B1 - Long Distance Target Maneuver In-Door Simulator - Google Patents

Abstract

A long distance target maneuver indoor simulator of the present invention comprises a fast steering mirror module (40) which converts the infrared wavelength of a target generated at a close distance into a light source of long distance infrared wavelength suited to an azimuth and a high-angle direction which a relatively long distance target has, and an optical module (20) which makes a reached IR light source of infrared wavelength into a parallel beam with a narrow optical width and then creates a parallel beam magnified three times. Therefore, the long distance target maneuver indoor simulator enables a tracking performance test of an image tracking device (40) even in a very narrow interior space and, in particular, can calculate quantitative target tracking accuracy by accurately identifying the position of a target in an image using azimuth and a high-angle direction.

Description

{Long Distance Target Maneuver In-Door Simulator}

The present invention relates to a simulator for remote target maneuver, and more particularly, to a remote target maneuver simulator that can be used in a room to perform remote target precise maneuvering which can be used for performance analysis of a video image tracking apparatus.

In general, the image tracking device has a very high utilization in the field of traffic control or facility security, and its utilization is very high especially in the military field such as target precision hitting.

Generally, the image tracking apparatus uses infrared (IR), and an improvement technique such as aberration compensation of a thermal lens is applied so that tracking performance on a target is improved.

Domestic patent registration 10-1118134 (February 13, 2012)

The patent document shows an example of a technique in which image pixels are divided into two or more intervals using linear interpolation on the basis of a required error value, and linear a compensation function is applied to each interval to compensate distortion aberration.

However, the above-described patent document is merely a method of improving the tracking performance by compensating for the aberration of the thermal lens distortion of the image tracking device, but it is inevitable to judge the tracking error performance of the image tracking device itself.

Especially, the image tracking system for military purposes requires very high tracking accuracy due to its characteristics. For this purpose, the tracking performance of the designed image tracking system is verified through target tracking using actual targets.

However, the exact position of the actual target center to be tracked can not be grasped in the image obtained from the target tracking using the real target, and the quantitative tracking error can not be obtained due to this limitation.

In order to solve this problem, there is a method in which the image-tracking device function and performance are obtained by moving a miniature target shape having a hot line on a black panel on the X-Y axis by a linear drive motor.

However, in this method, since the target movement is simulated by the linear drive motor, precise target position movement is not easy, and there is a limit to very fast target maneuvering.

In addition, a video tracking device including an optical system such as a lens and an IR sensor has a minimum focal distance from an IR image sensor to a target, which can provide an image focused on. The minimum focal length of most image tracking devices is at least a few tens of meters away, and the simulated target must be located at least a few tens of meters away, so that a large outdoor space is required.

Especially, in order to solve the space limitation due to the minimum focal distance of the image tracking device, precise and fast target movement simulation using a high-speed precision mirror with the optical system design necessarily becomes indispensable.

In view of the above, the present invention, which has been developed in view of the above-described problems, provides a performance analysis test of a video image tracking device without ensuring a minimum focal distance of at least several meters from an IR image sensor to a target, And the IR (Infrared) target moves in the same way as the remote precise maneuvering in the room through the mechanical mechanism, thereby providing a remote target moving indoor simulator capable of judging the tracking error performance of the image tracking device itself with efficient tracking performance .

In accordance with another aspect of the present invention, there is provided a remote target driving indoor simulator including: a simulated target light source module for generating a simulated target as an IR light source of infrared wavelength;

A Fast Steering Mirror Module for converting the infrared wavelength into an IR light source having a far infrared wavelength that is aligned with an azimuth angle of the remote target relative to the simulated target;

 An IR light source of the infrared wavelength generated from the simulated target light source module is firstly generated with parallel light having a width as large as that of the total reflection mirror and then the parallel light collected so as not to spread is broadened to the size of the object size of the image tracking device And outputting the parallel light to the image tracking device to which the tracking performance is tested; Is included.

The simulated target light source module includes a target wheel in which the simulated target is variously selected and a black body that generates the selected simulated target as the IR light source of the infrared wavelength.

Wherein the target wheel is composed of a post having a predetermined height and a disc rotated by the post to select the simulated target, wherein the simulated target is composed of a plurality of discs, one of which is selected, One is selected in accordance with the rotation angle, and the black body is temperature-controlled between + 70 ° C and -15 ° C.

The optical module includes an inlet total reflection mirror for totally reflecting the IR light source of the infrared wavelength, a concave mirror for primarily generating parallel light collected so as not to spread the IR light source of the infrared wavelength, which is totally reflected by the inlet total reflection mirror, A refraction total reflection mirror which is driven by an azimuth angle and an elevation angle direction by a Fast Steering Mirror Module to make the simulated target appear to start in azimuth and elevation directions; And an outlet concave mirror for generating the expanded parallel light as a secondary parallel light and finally entering the expanded parallel light into the image tracking device, .

The concave mirror is converted from the light reflected from the inlet total reflection mirror to the narrow wide light.

Wherein the refraction total reflection mirror is driven and controlled by the high-speed precision driving mirror module, the fast steering mirror module includes a driver and a controller, and the driver and the controller have azimuth and elevation angles Direction of the refraction total reflection mirror.

In the present invention, since the minimum focal distance of at least several meters from the IR image sensor to the target is not secured, the performance analysis test of the image tracking device is performed, thereby eliminating the space limitation due to the minimum focal length of the image tracking device. The performance test of the image tracking device is implemented in an indoor environment.

In addition, since the IR (Infrared) target is moved by the mechanical precision mechanism such as the remote precise maneuver, it is possible to realize an efficient tracking performance even in a room where the minimum focal distance of the image tracking apparatus is not secured. It is possible to determine the tracking error performance.

In addition, the present invention is a mechanical mechanism for precisely maneuvering an IR (Infrared) target at a long distance, and an accurate target position is grasped, so that the target tracking accuracy can be quantitatively calculated.

3 is a blackbody configuration example, and FIG. 4 is a view showing an example of a configuration of a target wheel according to an embodiment of the present invention. Fig. 5 is an operational state of the remote target active indoor simulator according to the present invention. Fig.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The present invention is not limited to these embodiments.

Fig. 1 shows a block configuration of a remote target active indoor simulator according to the present embodiment.

As shown in the figure, the remote target driver's indoor simulator includes a simulated target light source module 10 for generating a long-distance infrared (IR) target with a light source of infrared wavelength, Speed precision mirror module (40, Fast) having a driver and a controller for moving the refraction total reflection mirror (23) of the optical module (20) at high speed at high speed, Steering Mirror Module).

The image tracking device 50 is designed to perform image tracking performance based on the parallel light receiving performance of an infrared wavelength for a long distance infrared (IR) target in a state of being attached to the optical module 20.

Since the image tracking device 50 is a test object to which the designed image tracking performance is verified, the image tracking device 50 means all image tracking devices that are not limited to a specific type but are to be verified for tracking accuracy. In particular, It includes a required image tracking device for military purposes.

2 is a configuration of the target wheel 11, and the target wheel 11 can select a plurality of target shapes and is a component of the simulated target light source module 10.

The target wheel 11 includes a post 12 having a predetermined height, a circular plate 13 rotatably coupled to the post 12, and a plurality of And the simulated targets 15a, ..., 15f.

In particular, the simulated targets 15a, ..., 15f include square targets 15a for analyzing tracking performance, point targets 15b for alignment, bar targets 4-bar, 15c, 15e, a cross shaped target 15d and a vehicle shaped target 15f, and can be selected by turning the disk 13 as necessary.

On the other hand, Fig. 3 shows a configuration of the black body 17, in which the black body 17 generates a light source of an infrared wavelength so that the target selected by the target wheel 11 becomes a far infrared target by simulating the temperature difference between the target and the background .

Particularly, the temperature of the black body 17 can be controlled between + 70 ° C and -15 ° C, so that the temperature difference between the target and the background can be simulated.

Meanwhile, FIG. 4 shows a detailed configuration of an optical module including a high-speed precision mirror module (Fast Steering Mirror Module) in which an image similar to a distant target is simulated at a close distance.

As shown in the figure, the optical module 20 includes an inlet total reflection mirror 21 for totally reflecting an IR light source of an infrared wavelength simulating a target, and an infrared light source 21 for generating an IR light source of the infra- A concave mirror 22 and a refraction total reflection mirror 23 which is driven in azimuth and elevation directions by a fast steering mirror module 40 to make it appear as if the IR target is maneuvering in azimuth and elevation directions, An inter-convex mirror 24 for enlarging the parallel light collected by the concave mirror 22 so as not to spread out by the wide width of the object size of the image tracking device 50, and an infrared light wavelength And an outlet concave mirror 25 for generating a second light source of the second parallel light and finally making the light incident on the image tracking device 50.

Particularly, in the optical module 20, parallel light is generated twice using the concave mirror 22 and the outlet concave mirror 25, which is caused by the precision control performance of the total reflection mirror 23.

When the size of the refraction total reflection mirror 23 is smaller than the size of the outlet concave mirror (the distance from the image tracking device 50 to the optical axis of the image tracking device 50) Lt; RTI ID = 0.0 > of < / RTI >

However, the higher the size of the refraction total reflection mirror 23 to be precisely controlled by the high-speed precision driving mirror module 40, the higher the precision control can not be achieved.

Therefore, when the parallel light is generated twice using the concave mirror 22 and the inter-convex mirror 24 as in the present embodiment, the size of the total reflection mirror 23 can be reduced by as much as that, The refraction total reflection mirror 23 can realize a high precision control performance by the high-speed precision driving mirror module 40, thereby greatly improving the overall performance of the far-target maneuvering indoor simulator.

An IR light source of an infrared wavelength for converting the path of the light reflected by the total inlet mirror 21 is generated from the target wheel 11 and the black body 17 and is arranged so as to be close to the target wheel 11 and the black body 17 do.

The concave mirror 22 is arranged rearward of the inlet total reflection mirror 21 at a distance from the inlet total reflection mirror 21 so that the IR light source of the infrared wavelength type which is reflected and spread by the inlet total reflection mirror 21 is collected, The light can be converted into narrow parallel light.

The refraction total reflection mirror 23 is arranged in a position past the inlet total reflection mirror 21 in front of the concave mirror 22 and is configured to be driven by a high speed precision mirror module 40, And gives the azimuth angle and the elevation angle to the narrow parallel light beam from the mirror 22 to cause total reflection.

The inter-convex mirror 24 is arranged so as to be spaced apart from the refraction total reflection mirror 23 at an angle of 90 degrees. In particular, the inter-convex mirror 24 expands the light source of the infrared wavelength band reflected by the refraction total reflection mirror 23 by about three times, Is adapted to the objective lens size of the image tracking device (50).

Therefore, the wavelength band enlargement implemented in the inter-convex mirror 24 can be changed according to the objective lens size of the infrared ray image tracking device 50 to be tested for performance.

The outlet concave mirror 25 is arranged in the front side in accordance with the reflection angle of the inter-convex mirror 24, and transmits the enlarged infrared wavelength again to parallel light and sends it to the image tracking device 50.

The Fast Steering Mirror Module (40) includes a controller with an azimuth angle and an elevation angle control, and the controller controls the refraction total reflection mirror (23) at high speed Precision drive.

Therefore, although the target is generated from the target wheel 11 and the black body 17 by the refraction total reflection mirror 23 being driven in accordance with the azimuth angle and the elevation angle direction, the image tracking apparatus 50 is a system in which the target is driven at an azimuth angle and an elevation angle Can be recognized.

Meanwhile, FIG. 5 shows an operating state of the remote target active indoor simulator according to the present embodiment.

As shown in the figure, the target selected on the target wheel 11 is generated from the black target 17 as an IR light source of infrared wavelengths in the simulated target light source module 10, and the infrared light source of the infrared wavelength emitted from the simulated target light source module 10 Is incident on the inlet full mirror mirror (21).

Then, the IR light source at the infrared wavelength is defined as a simulated target light source.

The simulated target light source that has entered the total-inlet mirror 21 is reflected by the concave mirror 22 toward the concave mirror 22 and then is converged by the concave mirror 22 and is firstly produced as narrow parallel light. The parallel light is incident on the refraction total reflection mirror (23).

Then, the refraction total reflection mirror 23 totally reflects narrow parallel light entering the IR reflex mirror 23 so that the IR target appears to be moving in azimuth and elevation directions.

For this purpose, the refraction total reflection mirror 23 is driven by a high-speed precision driving mirror module 40, and the fast steering mirror module 40 is driven by a set azimuth angle and an elevation angle The azimuth angle and the elevation angle are set according to the distance to be expressed.

Therefore, the simulated target light source which is incident on the refraction total reflection mirror 23 and then totally reflected again is generated in the simulated target light source module 10, which is actually at a close distance, but may have light source characteristics generated at a long distance.

The simulated target light source totally reflected so as to act in the direction of azimuth and elevation through the refraction total reflection mirror 23 is incident on the inter-convex mirror 24, and the inter- ) And magnifies it about 3 times as wide as the magnification of the objective size of the object.

Then, the outlet concave mirror 25 generates a light source of an infrared wavelength approximately three times magnified through the inter-convex mirror 24 as secondary parallel light and sends it to the image tracking device 50.

Accordingly, the simulated target light source having a width broadened by about three times as compared with the initial stage is received by the image tracking device 50 through the objective lens and then displayed as an image, so that the image tracking device 50 can perform the tracking performance .

As described above, the remote target moving indoor simulator according to the present embodiment is a high-speed precision driving system that converts the infrared wavelength of a target generated at a close distance to a light source of a far infrared wavelength aligned with an azimuth angle of a remote target An optical module 20 for generating an IR light source having an infrared light having a wavelength of narrowed to a narrow width and then generating a parallel light that is magnified three times again is provided, The tracking performance of the image tracking device 50 is possible even in the space, and quantitative target tracking accuracy can be calculated by accurately grasping the target position in the image especially in the azimuth and elevation directions.

10: simulated target light source module 11: target wheel
12: Post 13: Disc
15a, ..., 15f: simulated target
17: Black body
20: Optical module 21: Inlet full mirror
22: concave mirror 23: refraction total reflection mirror
24: Inter-convex mirror 25: Outlet concave mirror
40: Fast Steering Mirror Module
50: Image tracking device

Claims (9)

A simulated target light source module for generating a simulated target with an IR light source at an infrared wavelength;
A Fast Steering Mirror Module for converting the infrared wavelength into an IR light source having a far infrared wavelength that is aligned with an azimuth angle of the remote target relative to the simulated target;
An IR light source of the infrared wavelength generated from the simulated target light source module is firstly generated with parallel light having a width as large as that of the total reflection mirror and then the parallel light gathered so as not to spread is broadened to the size of the object size of the image tracking device And outputting the parallel light to the image tracking device to which the tracking performance is tested;
Wherein the simulator comprises:
The simulator of claim 1, wherein the simulated target light source module comprises a target wheel having various simulated targets selected, and a black body generating the selected simulated target as the IR light source of the infrared wavelength.
3. The method of claim 2, wherein the target wheel is comprised of a post having a predetermined height, and a disc that is rotated in the post to select one of the various simulated targets, wherein the simulated target comprises a plurality of Can be selected. ≪ RTI ID = 0.0 > [10] < / RTI >
4. The simulator of claim 3, wherein the simulated target is arranged so that one can be selected according to the rotation angle of the disk.
The simulator of claim 2, wherein the black body is temperature controlled between + 70 ° C and -15 ° C.
The optical module as set forth in claim 1, wherein the optical module comprises: an inlet total reflection mirror that reflects the infrared light source of the infrared wavelength; a concave mirror that generates primary light by parallel light collected so as not to spread the IR light source of the infrared wavelength, A refraction total reflection mirror which is driven by an azimuth angle and an elevation angle direction by the Fast Steering Mirror Module to make the simulated target appear to start in azimuth and elevation directions; An inter-convex mirror for enlarging the parallel light collected so as not to spread so as to have a width as large as the size of the object of the image tracking device; an outlet for generating the expanded parallel light as the secondary parallel light, A concave mirror, and a concave mirror, My simulator.
7. The simulator as claimed in claim 6, wherein the concave mirror converts the light reflected from the inlet total reflection mirror into a spread light so as not to spread.
7. The simulator according to claim 6, wherein the refraction total reflection mirror is driven and controlled by the high-speed precision driving mirror module.
[Claim 10] The method according to claim 8, wherein the fast steering mirror module includes a driver and a controller, and the driver and the controller drive and control the refraction total reflection mirror in azimuth and elevation directions. Indoor simulator.

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