Infrared target simulation device resistant to high and low temperature conditions and use method thereof

Abstract

The invention discloses an infrared target simulation device resistant to high and low temperature conditions and a use method thereof, and belongs to the technical field of infrared target simulation. The simulation device comprises a static target source for generating an infrared target image; the thermal control system is used for carrying out adaptive temperature adjustment according to the working temperature of the static target source; the static target source comprises an infrared optical lens and a shell, the infrared optical lens is an athermalized optical lens, and the shell is made of a high and low temperature resistant material. The infrared target simulation device can ensure that a static target source is subjected to heat dissipation treatment under a high-temperature condition through the thermal control system so as to reduce the internal operation temperature and ensure the operation safety of equipment, and meanwhile, the adaptability of the whole equipment can be effectively improved by setting the infrared optical lens to be in an athermalization design and setting the material of the shell, so that the reliability of the equipment is improved. Therefore, the device adapts to various severe weathers and ensures normal operation.

Description

Technical Field

[0001] The invention relates to the technical field of infrared target simulation, in particular to an infrared target simulation device resistant to high and low temperature conditions. Background Art

[0002] With the rapid development of infrared technology, infrared target simulators have become an indispensable tool in the development, testing and evaluation of infrared detection systems. Infrared target simulators can simulate real or virtual infrared targets and provide a stable test environment for infrared detection systems, thereby helping R&D personnel evaluate system performance, optimize detection algorithms, and improve the overall effectiveness of the system.

[0003] However, although infrared target simulators show good performance at room temperature, their performance is often seriously affected when facing extreme environments such as high and low temperatures. Due to the limitations of materials, structural design and working principles, traditional infrared target simulators are prone to performance degradation, unstable operation or even malfunction in high and low temperature environments. This not only limits the testing and evaluation of infrared detection systems in high and low temperature environments, but also affects the reliability and applicability of infrared target simulators in practical applications.

[0004] Therefore, how to overcome the performance bottleneck of traditional infrared target simulators in high and low temperature environments and improve their environmental adaptability and stability has become a technical problem that needs to be urgently solved in the current field of infrared detection system research and development. Summary of the invention

[0005] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides an infrared target simulation device that is resistant to high and low temperature conditions and a method of using the same. The target simulation device is equipped with a thermal control system, and the infrared optical probe is set as a athermal probe. The shell is made of high and low temperature resistant material. It can provide clear and stable static infrared target images within a wide temperature range, so as to solve the problem that the infrared target simulation device in the prior art does not have the ability to withstand high and low temperatures.

[0006] On the one hand, the present invention provides an infrared target simulation device resistant to high and low temperature conditions, the infrared target simulation device resistant to high and low temperature conditions comprises a shell, and a A static target source, comprising an infrared radiation source, a reticle, and an infrared optical lens assembly sequentially installed in the housing; Power supply, used for energy supply; a heat dissipation module, which uses flowing wind and / or heat conduction in the housing to dissipate heat from the power supply and / or the infrared radiation source; and The control module includes a control panel that acts on the static target source, power supply and cooling module.

[0007] Optionally, the infrared optical lens is an athermal optical lens. The shell is made of high and low temperature resistant material.

[0008] Optionally, the control panel is provided with a power switch, an indicator light and an infrared radiation source power adjustment knob; The control module also includes a wireless communication module, which can maintain a communication connection with an external communication device and can remotely control the opening and closing of a power switch and the rotation of a power adjustment knob of an infrared radiation source through the external communication device.

[0009] Optionally, the power supply is provided with a circuit protection module, and when the operating temperature of the static target source exceeds or is lower than a preset temperature value, the circuit protection module disconnects the circuit to stop the static target source from working.

[0010] Optionally, the heat dissipation module includes a heat dissipation device and a temperature control system. The heat dissipation device includes a heat dissipation plate and / or a heat dissipation fan, the heat dissipation plate is installed on the power supply, and the fan is installed on the housing and acts on the power supply and the infrared radiation source; The temperature control system at least includes a temperature sensor connected to the control module. The temperature control system is used to monitor the internal temperature of the shell in real time and adjust the working state of the heat dissipation device according to the temperature inside the shell.

[0011] Optionally, a sealing layer and a waterproof layer are provided at the connection of the shell.

[0012] Specifically, it also includes a supporting mechanism, which is arranged at the bottom of the shell to support the entire shell, and the supporting mechanism is movably installed on the shell to achieve height adjustment and angle adjustment of the shell.

[0013] Specifically, the supporting mechanism is a plurality of foot screws arranged at the bottom of the shell, and the foot screws are distributed in a triangular shape at the lower end of the shell and maintain a threaded connection.

[0014] On the other hand, the present invention provides a method for using an infrared target simulation device resistant to high and low temperature conditions, which is as follows: Place the high and low temperature resistant infrared target simulation device on a flat surface, and rotate the foot screws at the bottom to drive the shell to rise and adjust the angle. After the adjustment is completed; The whole device is started by the power switch on the control panel, and the brightness of the infrared radiation source is adjusted by rotating the infrared radiation source brightness adjustment knob.

[0015] The start and stop of the high and low temperature resistant infrared target simulation device and the brightness of the infrared radiation source can also be remotely controlled through an external communication device connected to the control system.

[0016] The present invention has the following beneficial effects: a) High stability: By setting up a thermal control system, an athermalized infrared optical lens, and a shell made of high and low temperature resistant materials, the entire device can be ensured to work stably under high and low temperature conditions, greatly improving the accuracy and reliability of the test.

[0017] b) Strong adjustability: The design of the support mechanism allows the height and angle of the static target source to be adjusted as needed to meet the needs of different test scenarios.

[0018] c) Easy to use: The wireless communication module allows users to remotely connect to and control the device through software, so that users can easily set and control the operating status of the entire device and perform data recording and analysis.

[0019] d) Wide range of applications: The device of the present invention is suitable for the development and testing of various infrared detection systems, providing strong support for the research and development of related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the specific embodiments of the present invention, they are used to explain the present invention, but do not constitute any limitation to the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of the split structure of the present invention; Figure 3 is a schematic diagram of a control panel of the present invention; Figure 4 is a schematic diagram of the main view of the infrared radiation source of the present invention; Figure 5 is a side view schematic diagram of the infrared radiation source of the present invention; Figure 6 is a schematic diagram of three types of graticules of the present invention having different patterns; Figure 7 is a schematic diagram of a control circuit of the present invention; In the figure: 1. Shell; 2. Control panel; 3. Optical lens cap; 4. Foot screw; 5. Power switch; 6. Indicator light; 7. Infrared radiation source power adjustment knob; 8. Infrared optical lens; 9. Power module; 9.1. Heat sink; 10. Power socket; 11. Aviation socket; 12. Fuse; 13. Connection hole; 14. Infrared radiation source; 15. Graticule; 16. Fan. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further specifically described below through specific embodiments in combination with the accompanying drawings; it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not intended to limit the present invention in any way; the accompanying drawings in the present invention are only used to assist in the description of the embodiments and to facilitate understanding, and are not intended to limit the present invention in any way.

[0022] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] As described in the background art, the performance of existing infrared target simulators will be seriously affected in high and low temperature environments, and may even fail to work normally.

[0024] For the reasons stated above, please refer to the attached Figure 1-Figure 7 The present invention provides an infrared target simulation device resistant to high and low temperature conditions, comprising a housing 1, in which a The static target source comprises an infrared radiation source 14, a reticle 15, and an infrared optical lens assembly which are sequentially installed in the housing. The infrared optical lens assembly comprises an infrared optical lens 8 and an optical lens cap 3 corresponding to the lens end; the infrared optical lens 8 is a non-thermal optical lens, the housing 1 is made of a high and low temperature resistant material, and the infrared optical lens 8 is arranged in the housing 1; A power supply 9, used to supply energy to the entire device; a heat dissipation module, which uses flowing wind and / or heat conduction in the housing to dissipate heat from the power source 9 and / or the infrared radiation source 14; and The control module includes a control panel that acts on the static target source, power supply and cooling module.

[0025] According to the above paragraph, the infrared optical lens is set as a non-thermal optical lens, which can still operate normally under extremely high temperatures to ensure that excellent imaging quality can be maintained at different temperatures. The reticle can customize the corresponding target pattern according to user needs to simulate different types of infrared targets, thereby generating infrared target images. The infrared radiation source has high stability and long life, and can provide continuous and stable infrared radiation energy. At the same time, the infrared radiation source adopts a modular design and is easy to repair and replace.

[0026] For example, the function of the infrared optical lens is to convert the target image into parallel light and project it to the system exit pupil, perfectly coupling with the device under test so that the device under test can observe an infrared thermal radiation image equivalent to that at infinity. In the structure of the infrared optical lens, the exit pupil distance is 400mm, the maximum diameter of the collimating lens optical system is 135mm, and the length is 200mm.

[0027] like Figure 4 As shown, the infrared radiation source is a blackbody radiation source with modular design, which is easy to maintain, replace and disassemble. Several connecting ears are set on the side for easy installation. The blackbody radiation source uses high-efficiency and low-power photoelectric conversion devices that meet high and low temperature working requirements; high-radiance and high-uniformity materials are used as blackbody radiation surfaces to suppress the interference of heat reflection on the target, and the surface adopts anti-reflection treatment technology to make it have a uniform microstructure, provide a clear radiation source, and stable working time is greater than 10 hours; the infrared radiation source tail end connection line has two low-power photoelectric conversion device connection lines, and the line diameter is φ0.5 mm. The performance parameters of the infrared radiation source are shown in Table 1.

[0028] Table 1: Blackbody radiation source performance parameters

[0029] For example, Figure 5 As shown, the graticule is composed of a target frame hollow structure, a target surface heat-resistant ring, and a temperature balance plate of the radiation source. The hollow structure can be customized according to needs. The target plate thickness is 0.2 mm and the minimum hollow width is ≤0.2 mm.

[0030] For example, the shell adopts a frame design, and the structural material is aviation 7075 high-strength aluminum alloy. The overall weight is controlled in the box design, and through weight reduction optimization and local reinforcement of key parts, the overall rigidity of the structure is guaranteed and the weight is reduced for carrying and operation. A handle is set on the top of the simulator to facilitate the use of the product. The structural components in the shell are blackened by sulfuric acid anodizing, which can reduce internal heat radiation, and the surface of the exposed parts is treated to make the product beautiful as a whole and have strong corrosion resistance.

[0031] In order to meet the product's 10% to 98% humidity working requirements and ensure that there is no frost, condensation or dust in the optical mirror, the overall structural design fully considers the sealing performance. A sealing groove is designed and processed on the mating surface between the shell assembly and the cover plate, a sealing ring is installed on the mating surface between the lens assembly and the shell, and a sealed wiring plug is used for electrical wiring.

[0032] In one embodiment, if Figure 1As shown, the control panel 2 is provided with a power switch 5, an indicator light 6, an infrared radiation source power adjustment knob 7, a power jack 10, an aviation socket 11 and a fuse 12. The wireless communication module can maintain a communication connection with an external communication device, and can remotely control the opening and closing of the power switch 5 and the rotation of the infrared radiation source brightness adjustment knob 7 through the external communication device. The control panel 2 is installed on the end of the housing 1 in a detachable manner (such as bolt connection), and connection holes 13 are provided on the four corners of the control panel 2.

[0033] The infrared radiation source and the target are both movably installed inside the shell, and the infrared radiation source and the target can be repaired and replaced by disassembling the control panel.

[0034] The control module also includes a wireless communication module, which can maintain a communication connection with an external communication device and can remotely control the opening and closing of a power switch and the rotation of a power adjustment knob of an infrared radiation source through the external communication device.

[0035] In one embodiment, the power supply is provided with a circuit protection module, and when the operating temperature of the static target source exceeds or is lower than a preset temperature value, the circuit protection module disconnects the circuit to stop the static target source from working. A PWM modulation shaping drive is also provided in the housing to control the power supply time of the infrared radiation source, thereby realizing the regulation of the infrared radiation power.

[0036] Exemplarily, the heat dissipation module includes a heat dissipation device and a temperature control system. The heat dissipation device comprises a heat dissipation plate 9.1 and / or a heat dissipation fan 16, wherein the heat dissipation plate is mounted on the power supply, and the fan is mounted on the housing and acts on the power supply and the infrared radiation source; The temperature control system at least includes a temperature sensor connected to the control module. The temperature control system is used to monitor the internal temperature of the shell in real time and adjust the working state of the heat dissipation device according to the temperature inside the shell.

[0037] In one embodiment, the heat dissipation device adopts forced air cooling to remove the heat generated inside the device through a heat dissipation fan. The temperature control system adopts a PID algorithm to automatically adjust the speed of the heat dissipation fan according to the internal temperature of the device to ensure that the device works normally under high and low temperature conditions.

[0038] In order to facilitate heat dissipation, louver holes (i.e. ventilation holes of a conventional distribution box, which are not shown in the attached drawings due to their relatively conventional structure) can be opened on the side walls of the outer shell to facilitate the flow of external air into the shell for heat dissipation while preventing rainwater from entering the shell.

[0039] Specifically, the housing 1 is also provided with a sealing layer and a waterproof layer to ensure that the device can still work normally in a harsh environment. At the same time, in order to improve the waterproofness of the housing at the fan or other ventilation holes, an ePTFE membrane is installed on the inner side of the fan or the inner side of the ventilation hole.

[0040] In one embodiment, the simulation device further comprises a supporting mechanism, which is disposed at the bottom of the shell for supporting the entire shell 1 , and the supporting mechanism is movably mounted on the shell 1 to achieve height adjustment and angle adjustment of the shell 1 .

[0041] Specifically, the supporting mechanism is a plurality of foot screws 4 arranged at the bottom of the housing. The foot screws 4 are distributed in a triangular shape at the lower end of the housing and are threadedly connected. The bottom of the foot screws 4 is arc-shaped.

[0042] Specifically, the structural components of the device are blackened by sulfuric acid anodizing, which can reduce internal heat radiation, and the surface of exposed parts is treated (such as sandblasting black oxidation) to make the product overall beautiful and have strong corrosion resistance.

[0043] During use, the device is placed on a plane at a suitable position, and the housing 1 is raised and lowered by rotating the foot screws 4 at the bottom. Since the foot screws 4 are distributed in a triangular shape, not only the height adjustment of the static target source can be achieved, but also the angle adjustment can be achieved. After the adjustment is completed, the power switch 5 on the control panel 2 can be turned on to start the entire device and the infrared radiation source power adjustment knob 7 can be rotated to adjust the brightness of the infrared radiation source. The power switch 5 can also be turned on and the infrared radiation source power adjustment knob 7 can be rotated remotely through an external communication device connected to the control system (such as an APP on a mobile phone) to realize the operation of the entire device.

[0044] In the natural environment, the temperature of the target pattern and the infrared radiation source are the same. When the infrared radiation source is heated to produce a temperature difference between the infrared radiation source and the target pattern, the infrared radiation source passes through the target hollow pattern to simulate the target temperature, while the non-hollow part of the target simulates the background temperature. Therefore, it is only necessary to control the temperature value of the infrared radiation source (that is, the temperature difference between the background and the target hollow pattern) to simulate the target and background under different temperature differences.

[0045] In another embodiment, a method for using a high and low temperature resistant infrared target simulation device is provided, as follows: Place the high and low temperature resistant infrared target simulation device on a flat surface, and rotate the foot screws at the bottom to drive the shell to rise and adjust the angle. After the adjustment is completed; The whole device is started by the power switch on the control panel, and the brightness of the infrared radiation source is adjusted by rotating the infrared radiation source brightness adjustment knob.

[0046] The start and stop of the high and low temperature resistant infrared target simulation device and the brightness of the infrared radiation source can also be remotely controlled through an external communication device connected to the control system.

[0047] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. An infrared target simulation device resistant to high and low temperature conditions, comprising a housing, characterized in that: A A static target source, comprising an infrared radiation source, a reticle, and an infrared optical lens assembly sequentially installed in the housing; Power supply, used for energy supply; A heat dissipation module, which uses flowing wind and / or heat conduction in the housing to dissipate heat from the power supply and / or the infrared radiation source; as well as The control module includes a control panel that acts on the static target source, power supply and cooling module.

2. According to claim 1, the infrared target simulation device resistant to high and low temperature conditions is characterized in that: The infrared optical lens is an athermal optical lens. The shell is made of high and low temperature resistant material.

3. According to claim 2, the infrared target simulation device resistant to high and low temperature conditions is characterized in that: The control panel is provided with a power switch, an indicator light and an infrared radiation source power adjustment knob; The control module also includes a wireless communication module, which can maintain a communication connection with an external communication device and can remotely control the opening and closing of a power switch and the rotation of a power adjustment knob of an infrared radiation source through the external communication device.

4. The high and low temperature resistant infrared target simulation device according to claim 1, characterized in that: The power supply is provided with a circuit protection module. When the operating temperature of the static target source exceeds or is lower than a preset temperature value, the circuit protection module disconnects the circuit to stop the static target source from working.

5. The high and low temperature resistant infrared target simulation device according to claim 1, characterized in that: The heat dissipation module includes a heat dissipation device and a temperature control system. The heat dissipation device includes a heat dissipation plate and / or a heat dissipation fan, the heat dissipation plate is installed on the power supply, and the fan is installed on the housing and acts on the power supply and the infrared radiation source; The temperature control system at least includes a temperature sensor connected to the control module.

6. The high and low temperature resistant infrared target simulation device according to claim 1, characterized in that: A sealing layer and a waterproof layer are provided at the connection of the shell.

7. The high and low temperature resistant infrared target simulation device according to claim 1, characterized in that: It also includes a supporting mechanism, which is arranged at the bottom of the shell for supporting the entire shell, and the supporting mechanism is movably installed on the shell to achieve height adjustment and angle adjustment of the shell.

8. The high and low temperature resistant infrared target simulation device according to claim 7, characterized in that: The supporting mechanism is a plurality of foot screws arranged at the bottom of the shell, and the foot screws are distributed in a triangular shape at the lower end of the shell and maintain threaded connection.

9. A method for using an infrared target simulation device resistant to high and low temperature conditions, characterized in that: The details are as follows: Place the high and low temperature resistant infrared target simulation device on a flat surface, and rotate the foot screws at the bottom to drive the shell to rise and adjust the angle. After the adjustment is completed; The whole device is started by the power switch on the control panel, and the brightness of the infrared radiation source is adjusted by rotating the infrared radiation source brightness adjustment knob.

10. The method for using the high and low temperature resistant infrared target simulation device according to claim 1, characterized in that: The start and stop of the high and low temperature resistant infrared target simulation device and the brightness of the infrared radiation source can also be remotely controlled through an external communication device connected to the control system.

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