Television / infrared tracking demonstration semi-physical simulation system

Abstract

The invention discloses a television / infrared tracking demonstration semi-physical simulation system, which relates to the technical field of simulation equipment, and comprises a target simulator for simulating infrared and television targets, a target tracker for tracking visible light and infrared light, and a display control computer, the display control computer is connected with the target tracker and the target simulator through network cables, the target simulator is provided with a one-dimensional rotating platform, and the one-dimensional rotating platform is slidably connected with a linear sliding rail; through semi-physical simulation, actual hardware equipment is used as support, the integration degree is high, a dual-band target simulation system and a target tracking system are integrated into one system, the functions are comprehensive, and an equal-proportion simulation far-field test can be carried out; the shape and size of the characteristic target in the target simulator can be changed, remote target tracking of different targets can be carried out indoors, and the flexibility is high.

Description

Technical Field

[0001] The invention relates to the technical field of simulation equipment, in particular to a television / infrared tracking demonstration semi-physical simulation system. Background Art

[0002] TV and infrared target tracking technology is currently widely used in various fields, and the teaching and research of related technologies have become very important. Therefore, building a semi-physical simulation system in the laboratory that can simulate far-field TV / infrared target tracking in proportion will greatly improve the convenience of teaching demonstration and research of related technologies.

[0003] The prior art is mostly single visible light and infrared tracker devices. There is no corresponding target simulator to cooperate with the tracker to simulate the target tracking process indoors, and it is impossible to fully and comprehensively display the entire television / infrared tracking process. The prior art is often single-minded. When performing tracking demonstrations, it is necessary to perform multiple demonstrations, which has limitations. Therefore, the present invention provides a television / infrared tracking demonstration semi-physical simulation system. Summary of the invention

[0004] In view of the above technical problems, the present invention discloses a television / infrared tracking demonstration semi-physical simulation system, comprising a target simulator for simulating infrared and television targets, a target tracker for tracking visible light and infrared, and a display and control computer. The target tracker and the target simulator are arranged opposite to each other, and the display and control computer is connected to the target tracker and the target simulator through a network cable. A one-dimensional rotating platform is installed on the target simulator, and the one-dimensional rotating platform is slidably connected to a linear slide rail.

[0005] Furthermore, the target tracker comprises a turntable, on which a television tracker and an infrared tracker are mounted, the television tracker is connected to the infrared tracker, and the television tracker is located below the infrared tracker.

[0006] Furthermore, the target simulator includes a simulator shell, in which a photothermal source for generating visible light source and heat source, an off-axis reflective wide-band optical system, and a characteristic target covering infrared and visible light bands are arranged, the simulator shell is provided with an optical path outlet, the optical path outlet is provided with a dust cover, the photothermal source is located on one side of the simulator shell, the characteristic target is in front of the photothermal source, and the photothermal source uses a tungsten lamp.

[0007] Furthermore, the characteristic target is a circular target, and the center of the circular target is hollowed out according to the characteristic contour of the target.

[0008] Furthermore, the off-axis reflective wide-band optical system includes an optical reflector and an optical parabolic mirror, the optical parabolic mirror is located above the photothermal source, the optical reflector is located in front of the characteristic target, and the optical reflector is set at an angle to the horizontal plane, and the optical reflector is used in conjunction with the optical parabolic mirror.

[0009] Furthermore, the display and control computer controls the one-dimensional rotating platform and the linear slide rail through a software algorithm so that the target simulator on the one-dimensional rotating platform always points to the direction of the target tracker during the movement. The display and control computer is provided with an upper position software, and the upper position software selects a target miss value of the target tracker to drive the turntable to track the target.

[0010] Furthermore, the TV tracker and infrared tracker are both composed of a receiver, a signal processor, a target information measurement module and an imager. The receiver in the TV tracker is a visible light receiver, the receiver in the infrared tracker is an infrared receiver, the imager in the TV tracker is an industrial camera, and the imager in the infrared tracker is composed of an infrared lens and an infrared imaging movement.

[0011] Furthermore, the target information measurement module is used for image target recognition and provides the error between the target and the imager pointing. The target information measurement module can track static or moving targets and identify the target's position, and report the final tracking result to the display and control computer.

[0012] Compared with the prior art, the present invention has the following advantages: (1) the present invention uses semi-physical simulation and is supported by actual hardware devices, which has a high degree of integration and integrates dual-band target simulation and target tracking systems into one system. The system has comprehensive functions and can perform proportional simulation of far-field tests. (2) the characteristic target in the target simulator of the present invention can be changed in shape and size, and long-distance target tracking of different targets can be performed indoors, which is highly flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 Schematic diagram of the working principle of the target tracker of the present invention.

[0015] Figure 3 Schematic diagram of the structure layout of the target simulator of the present invention DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Example: Figure 1-Figure 3 As shown, a television / infrared tracking demonstration semi-physical simulation system includes a target simulator for simulating infrared and television targets, a target tracker for tracking visible light and infrared, and a display and control computer. The target tracker and the target simulator are arranged opposite to each other. The display and control computer is connected to the target tracker and the target simulator through a network cable, and performs data transmission and control. A one-dimensional rotating platform for driving the target simulator to perform an angle offset is installed on the target simulator. The one-dimensional rotating platform is slidably connected to a linear slide rail for linear motion. The display and control computer controls the one-dimensional rotating platform and the linear slide rail through a software algorithm, so that the target simulator on the one-dimensional rotating platform always points to the direction of the target tracker during the movement.

[0018] The target tracker includes a turntable, on which are installed a television tracker and an infrared tracker for simulating target optical imaging, target identification, target tracking and position information output. The television tracker is connected to the infrared tracker, and the television tracker is located below the infrared tracker. The display and control computer is provided with an upper camera position software, and the upper camera position software can select a target miss value of a tracker to drive the turntable for target tracking.

[0019] Both the TV tracker and the infrared tracker are composed of a receiver, a signal processor, a target information measurement module and an imager. The receiver in the TV tracker is a visible light receiver, and the receiver in the infrared tracker is an infrared receiver. The imager in the TV tracker is an industrial camera that can detect targets in the visible light band and can output target images in real time. The industrial camera can acquire target and scene videos. The imager in the infrared tracker is composed of an infrared lens and an infrared imaging movement, and can detect infrared targets.

[0020] The target information measurement module is composed of a platform frame, a drive motor, an angular velocity sensor, an angular position sensor and a follow-up stabilization controller. The upper machine position software in the display and control computer transmits instructions to the follow-up stabilization controller through a network cable. The follow-up control stabilizer controls the drive motor, and the drive motor drives the platform frame to move. The position and speed data of the platform frame are transmitted to the follow-up control stabilizer through the angular velocity sensor and the angular position sensor. The target information measurement module is used for image target recognition and gives the error between the target and the imager pointing. The target information measurement module can track stationary or moving targets and identify the target's position, and report the final tracking results to the display and control computer.

[0021] The target simulator includes a simulator shell, in which are arranged a photothermal source for generating visible light source and heat source, an off-axis reflective wide-band optical system, and a characteristic target covering infrared and visible light bands; an optical path outlet is arranged on the simulator shell, and a dust cover is arranged on the optical path outlet; the photothermal source is located on one side of the simulator shell, and the characteristic target is in front of the photothermal source, and a tungsten lamp is used as the photothermal source.

[0022] The characteristic target is a circular target, and the center of the circular target is hollowed out according to the characteristic contour of the target. The hollowing out of the center of the target can be in any shape.

[0023] The characteristic target in the target simulator can be manually changed into different shapes and sizes to realize the switching of simulated visible light or infrared vehicles, personnel and other targets. By changing the size of the characteristic target in the target simulator, the size of the imaging pixel of the target in the target tracker can be changed. The relationship formula between the focal length, field of view size and object distance of the target tracker lens can be used for calculation, and the imaging of real long-distance targets in the target tracker can be simulated in proportion.

[0024] The off-axis reflective broadband optical system comprises an optical reflector and an optical parabolic mirror. The optical parabolic mirror is located above the light and heat source, the optical reflector is located in front of the characteristic target, and the optical reflector is set at an angle to the horizontal plane. The optical reflector and the optical parabolic mirror are used in conjunction with each other.

[0025] Working principle: fix the target simulator on a one-dimensional rotating platform, fix the TV tracker and infrared tracker on the turntable, and after determining the characteristic target in the target simulator, the visible light of the photothermal source is mapped on the optical reflector through the hollow on the characteristic target, and then the optical reflector transmits the visible light to the light path exit on the simulator shell through the optical parabolic mirror, set the target motion trajectory in the upper machine position software in the display and control computer, control the linear track through the upper machine position software to simulate the target movement, and the upper machine position software controls the one-dimensional rotating platform to make the target in the target simulator point to the TV tracker and infrared tracker in real time. The display and control computer selects a tracker from the TV tracker and infrared tracker to track the target, and the display and control computer receives the returned image, and then drives the turntable to move according to the algorithm to track the target.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A television / infrared tracking demonstration semi-physical simulation system, characterized in that: The invention comprises a target simulator for simulating infrared and television targets, a target tracker for tracking visible light and infrared, and a display and control computer. The target tracker and the target simulator are arranged opposite to each other. The display and control computer is connected with the target tracker and the target simulator through a network cable. A one-dimensional rotating platform is installed on the target simulator. The one-dimensional rotating platform is slidably connected with a linear slide rail.

2. The television / infrared tracking demonstration semi-physical simulation system as claimed in claim 1, characterized in that: The target tracker comprises a turntable, on which a television tracker and an infrared tracker are mounted, the television tracker is connected to the infrared tracker, and the television tracker is located below the infrared tracker.

3. The television / infrared tracking demonstration semi-physical simulation system as claimed in claim 2, characterized in that: The target simulator includes a simulator shell, in which a photothermal source that generates a visible light source and a heat source, an off-axis reflective wide-band optical system, and a characteristic target that can cover infrared and visible light bands are arranged, the simulator shell is provided with an optical path outlet, the optical path outlet is provided with a dust cover, the photothermal source is located on one side of the simulator shell, the characteristic target is in front of the photothermal source, and the photothermal source uses a tungsten lamp.

4. The television / infrared tracking demonstration semi-physical simulation system as claimed in claim 3, characterized in that: The characteristic target is a circular target, and the center of the circular target is hollowed out according to the target characteristic contour.

5. The television / infrared tracking demonstration semi-physical simulation system as claimed in claim 3, characterized in that: The off-axis reflective broadband optical system comprises an optical reflector and an optical parabolic mirror. The optical parabolic mirror is located above the photothermal source, the optical reflector is located in front of the characteristic target, and the optical reflector is arranged at an angle to the horizontal plane. The optical reflector is used in conjunction with the optical parabolic mirror.

6. The television / infrared tracking demonstration semi-physical simulation system as claimed in claim 2, characterized in that: The display and control computer controls the one-dimensional rotating platform and the linear slide rail through a software algorithm, so that the target simulator on the one-dimensional rotating platform always points to the direction of the target tracker during the movement. The display and control computer is provided with an upper position software, and the upper position software selects a target miss value of the target tracker to drive the turntable to track the target.

7. The television / infrared tracking demonstration semi-physical simulation system as claimed in claim 2, characterized in that: The TV tracker and infrared tracker are both composed of a receiver, a signal processor, a target information measurement module and an imager. The receiver in the TV tracker is a visible light receiver, the receiver in the infrared tracker is an infrared receiver, the imager in the TV tracker is an industrial camera, and the imager in the infrared tracker is composed of an infrared lens and an infrared imaging movement.

8. The television / infrared tracking demonstration semi-physical simulation system as claimed in claim 7, characterized in that: The target information measurement module is used for image target recognition and gives the error between the target and the imager pointing. The target information measurement module can track static or moving targets and identify the target's position, and report the final tracking result to the display control computer.

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