Infrared target simulation device resistant to high and low temperature conditions

Abstract

The utility model discloses an infrared target simulation device resistant to high and low temperature conditions, which belongs to the technical field of infrared target simulation, and comprises a shell, a static target source arranged in the shell, an infrared radiation source, a reticle and an infrared optical lens assembly which are sequentially arranged in the shell; the power supply is used for supplying energy; the heat dissipation module is used for dissipating heat of a power supply or / and the infrared radiation source by adopting flowing air or / and heat conduction in the shell; and the control module comprises a control panel acting on the static target source, the power supply and the heat dissipation module. According to the target simulation device, the heat dissipation module is arranged, so that the whole device can stably work under high and low temperature conditions, and a clear and stable static infrared target image can be provided in a wide temperature range.

Description

Technical Field

[0001] The utility model 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. These simulators can simulate real or virtual infrared targets, providing a stable testing environment for infrared detection systems. This helps developers evaluate system performance, optimize detection algorithms, and improve overall system effectiveness.

[0003] However, while infrared target simulators exhibit good performance at room temperature, their performance is often severely affected in extreme environments such as high and low temperatures. Due to limitations in materials, structural design, and operating principles, traditional infrared target simulators are prone to performance degradation, operational instability, or even malfunction in high and low temperature environments. This not only limits the testing and evaluation of infrared detection systems in these environments but also impacts 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. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides an infrared target simulation device that is resistant to high and low temperature conditions. 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] The utility model provides an infrared target simulation device resistant to high and low temperature conditions, comprising a shell, a

[0007] a static target source, comprising an infrared radiation source, a reticle, and an infrared optical lens assembly sequentially installed in the housing;

[0008] Power supply, used for energy supply;

[0009] a heat dissipation module, which uses flowing air and / or heat conduction in the housing to dissipate heat from the power supply and / or the infrared radiation source; and

[0010] The control module includes a control panel that acts on the static target source, power supply and cooling module.

[0011] Optionally, the infrared optical lens is an athermal optical lens.

[0012] The shell is made of high and low temperature resistant material.

[0013] Optionally, the control panel is provided with a power switch, an indicator light, and an infrared radiation source power adjustment knob;

[0014] The control module also includes a wireless communication module, which can maintain a communication connection with an external communication device and remotely control the opening and closing of the power switch and the rotation of the infrared radiation source power adjustment knob through the external communication device.

[0015] Optionally, the power supply is provided with a circuit protection module. When the operating temperature of the static target source exceeds or falls below a preset temperature value, the circuit protection module disconnects the circuit to stop the static target source from working.

[0016] Optionally, the heat dissipation module includes a heat dissipation device and a temperature control system.

[0017] 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;

[0018] The temperature control system at least includes a temperature sensor connected to the control module. The temperature control system is used to monitor the temperature inside the shell in real time and adjust the working state of the heat dissipation device according to the temperature inside the shell.

[0019] Optionally, a sealing layer and a waterproof layer are provided at the connection between the shells.

[0020] 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.

[0021] Specifically, the support 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.

[0022] The utility model has the following beneficial effects:

[0023] 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.

[0024] 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.

[0025] c) Ease of use: The wireless communication module allows users to remotely connect to and control the device through software, allowing users to easily set and control the operating status of the entire device and perform data recording and analysis.

[0026] d) Wide range of applications: The device of the utility model is suitable for the research and development and testing scenarios of various infrared detection systems, providing strong support for research and development in related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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:

[0028] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0030] Figure 3 It is a schematic diagram of the control panel of the utility model;

[0031] Figure 4 This is a schematic diagram of the main view of the infrared radiation source of the present invention;

[0032] Figure 5 It is a side view schematic diagram of the infrared radiation source of the present invention;

[0033] Figure 6 It is a schematic diagram of three types of reticle plates of the utility model with different patterns;

[0034] Figure 7 It is a schematic diagram of the control circuit of the utility model;

[0035] In the figure: 1. Housing; 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 jack; 11. Aviation socket; 12. Fuse; 13. Connection hole; 14. Infrared radiation source; 15. Reticle; 16. Fan. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described in detail 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.

[0037] 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 for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0038] As described in the background art, the performance of existing infrared target simulators will be severely affected in high and low temperature environments, and may even fail to work properly.

[0039] For the reasons mentioned above, please refer to the attached Figure 1-Figure 7 The utility model provides an infrared target simulation device resistant to high and low temperature conditions, comprising a housing 1, in which a

[0040] A static target source includes 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 includes an infrared optical lens 8 and an optical lens cap 3 corresponding to the lens end. The infrared optical lens 8 is an athermal optical lens. The housing 1 is made of a high and low temperature resistant material, and the infrared optical lens 8 is disposed in the housing 1.

[0041] Power supply 9, used to supply energy to the entire device;

[0042] a heat dissipation module, which dissipates heat from the power supply 9 and / or the infrared radiation source 14 in the housing by using flowing wind and / or heat conduction; and

[0043] The control module includes a control panel that acts on the static target source, power supply and cooling module.

[0044] As described in the previous paragraph, the infrared optical lens is configured as an athermalized lens, allowing it to operate normally even in extremely high temperatures, ensuring excellent imaging quality at all temperatures. The reticle can be customized with target patterns based on user needs to simulate different types of infrared targets, thereby generating infrared target images. The infrared radiation source has high stability and a long lifespan, providing continuous and stable infrared radiation energy. Its modular design also allows for easy maintenance and replacement.

[0045] For example, the infrared optical lens converts the target image into parallel light and projects it onto the system's exit pupil, achieving perfect coupling with the device under test, allowing the device to observe an infrared thermal radiation image equivalent to that at infinite distance. In the infrared optical lens structure, the exit pupil distance is 400mm, and the collimating lens optical system has a maximum diameter of 135mm and a length of 200mm.

[0046] like Figure 4 As shown, the infrared radiation source is a blackbody radiation source with a modular design, featuring easy maintenance, replacement, and disassembly. Several side connectors facilitate installation. The blackbody radiation source internally utilizes a high-efficiency, low-power photoelectric conversion device that meets high and low-temperature operating requirements. The blackbody radiation surface is made of a high-emissivity, highly uniform material to suppress interference from thermal reflections on the target. Anti-reflection treatment is applied to the surface to create a uniform microstructure, providing a clear radiation source with a stable operating time of more than 10 hours. The infrared radiation source's tail end is connected to two low-power photoelectric conversion device cables, each with a diameter of 0.5 mm. The performance parameters of the infrared radiation source are shown in Table 1.

[0047] Table 1: Blackbody radiation source performance parameters

[0048]

[0049] For example, Figure 5 As shown, the reticle consists of a target frame hollow structure, a target surface heat-resistant ring, and a temperature balance plate of the radiation source. The hollow structure allows for customization of corresponding target patterns as required. The target plate thickness is 0.2 mm, and the minimum hollow width is ≤0.2 mm.

[0050] For example, the housing adopts a frame design, constructed from aviation-grade 7075 high-strength aluminum alloy. The overall weight of the enclosure is controlled, and through weight reduction optimization and local reinforcement of key areas, the overall rigidity of the structure is maintained while reducing weight for portability and operation. A handle is provided on the top of the simulator for easy use. Structural components within the housing are treated with sulfuric acid anodizing to achieve a black finish, reducing internal heat radiation. The surface treatment of exposed parts enhances the overall aesthetics of the product and its strong corrosion resistance.

[0051] To meet the product's operating requirements of 10% to 98% humidity and ensure that there is no frost, condensation, or dust inside the optical lens, the overall structural design fully considers sealing. 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 connecting surface between the lens assembly and the shell, and a sealed wiring plug is used for electrical wiring.

[0052] In one embodiment, if Figure 1As shown, the control panel 2 is equipped 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 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 detachably mounted to the end of the housing 1 (e.g., by bolts). Connection holes 13 are provided at the four corners of the control panel 2.

[0053] 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.

[0054] The control module also includes a wireless communication module, which can maintain a communication connection with an external communication device and remotely control the opening and closing of the power switch and the rotation of the infrared radiation source power adjustment knob through the external communication device.

[0055] In one embodiment, the power supply is equipped with a circuit protection module. When the operating temperature of the static target source exceeds or falls below a preset temperature value, the circuit protection module disconnects the circuit, causing the static target source to stop operating. The housing is also equipped with a PWM modulation shaping driver for controlling the power supply duration of the infrared radiation source, thereby achieving regulation of the infrared radiation power.

[0056] Exemplarily, the heat dissipation module includes a heat dissipation device and a temperature control system.

[0057] The heat dissipation device includes 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;

[0058] The temperature control system at least includes a temperature sensor connected to the control module. The temperature control system is used to monitor the temperature inside the shell in real time and adjust the working state of the heat dissipation device according to the temperature inside the shell.

[0059] In one embodiment, the heat dissipation device utilizes forced air cooling, with a cooling fan dissipating heat generated within the device. A temperature control system utilizes a PID algorithm to automatically adjust the speed of the cooling fan based on the internal temperature of the device, ensuring proper operation of the device under both high and low temperature conditions.

[0060] In order to facilitate heat dissipation, louver holes (i.e., ventilation holes of conventional distribution boxes, which are not shown in the attached drawings due to their relatively conventional structure) can be opened on the side walls of the shell to facilitate the flow of external air into the shell for heat dissipation, while preventing rainwater from entering the shell.

[0061] Specifically, the housing 1 is further provided with a sealing layer and a waterproof layer to ensure that the device can still function normally in harsh environments. 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 where the fan is installed or the inner side of the ventilation holes.

[0062] In one embodiment, the simulation device further includes 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 .

[0063] Specifically, the support mechanism is a plurality of foot screws 4 arranged at the bottom of the shell. The foot screws 4 are distributed in a triangular shape at the lower end of the shell and maintain a threaded connection. The bottom of the foot screws 4 is arc-shaped.

[0064] 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 overall product beautiful and have strong corrosion resistance.

[0065] During use, the device is placed on a plane in 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.

[0066] In a natural environment, the target pattern and the infrared radiation source have the same temperature. When the infrared radiation source is heated, creating a temperature difference between the target pattern and the infrared radiation source, the infrared radiation source passes through the target's hollowed-out pattern to simulate the target's desired temperature, while the target's non-hollowed-out area simulates the background temperature. Therefore, by simply controlling the infrared radiation source's temperature (i.e., creating a temperature difference between the background and the target's hollowed-out pattern), we can simulate targets and backgrounds with different temperature differences.

[0067] The above description is a detailed description of the preferred 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 modifications 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: There is provided in the housing 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 air 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. The high and low temperature resistant infrared target simulation device according to claim 1, characterized in that: The infrared optical lens is an athermal optical lens. The shell is made of high and low temperature resistant material.

3. The high and low temperature resistant infrared target simulation device according to claim 2, 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 remotely control the opening and closing of the power switch and the rotation of the infrared radiation source power adjustment knob 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 falls below 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 shells.

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 to support the entire shell. 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. The foot screws are distributed in a triangular shape at the lower end of the shell and maintain threaded connection.

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