Enhanced infrared signal sensing device
By introducing signal enhancement structures such as infrared lenses, low noise amplifiers and inlet fans into infrared signal sensing devices, the problem of degradation of infrared sensor detection capabilities in high-temperature environments is solved, and a stronger signal sensing effect is achieved.
Patent Information
- Application Number
- CN202421255675.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing infrared induction alarm devices are affected by thermal noise in high temperature environments, resulting in weak signal detection capabilities of infrared sensors and poor perception effects.
An enhanced infrared signal sensing device was designed, and a signal enhancement structure was adopted, including an infrared lens, a low-noise amplifier, a temperature sensor and an inlet fan. The infrared light was concentrated through the infrared lens, and the low-noise amplifier amplified the weak signal. The temperature sensor monitored and feedbacked temperature changes. Dynamically adjust the infrared sensor output, and the inlet fan forms a cooling air duct to reduce the impact of temperature increase on the infrared sensor.
It effectively enhances the signal perception ability of infrared sensors, improves the perception effect, reduces the signal influence of infrared sensors in high temperature environments, and improves detection capabilities.
Smart Images
Figure CN222298969U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of infrared signal perception, in particular to an enhanced infrared signal perception device. Background Art
[0002] Infrared sensors are sensors that use infrared rays to process data. They have the advantages of high sensitivity and can control the operation of drive devices. Infrared sensors are commonly used for non-contact temperature measurement, gas composition analysis and non-destructive testing, and are widely used in medicine, military, space technology and environmental engineering.
[0003] An existing infrared sensing alarm device (publication number: CN215831532U) has at least the following disadvantages: the above-mentioned device performs all-round infrared sensing around the support frame through the rotation of the infrared sensor, thereby expanding the sensing range of the infrared sensor and enhancing the infrared sensor perception. However, the perception intensity of the infrared sensor is affected by the ambient temperature. When the weather is hot, the infrared sensor is affected by thermal noise, and its ability to detect weak signals becomes weak, resulting in poor infrared sensor perception effect. For this reason, we propose the utility model. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes an enhanced infrared signal sensing device.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] An enhanced infrared signal sensing device comprises a shell, wherein a signal enhancing structure is arranged inside the shell, the signal enhancing structure comprises a mounting plate fixed inside the shell, a gap is left between one side of the mounting plate and one side of the inner wall of the shell, an infrared sensor is fixed on the front side of the mounting plate, a low-noise amplifier is fixed on the front side of the mounting plate, the low-noise amplifier is electrically connected to the infrared sensor, a single-chip microcomputer is fixed on the front side of the mounting plate, the single-chip microcomputer is electrically connected to the infrared sensor, and an infrared lens is arranged on one side of the infrared sensor.
[0007] As a further solution of the utility model, an air inlet hole and an air outlet hole are opened on one side of the shell, a temperature sensor is fixed on the front side of the mounting plate, the temperature sensor is electrically connected to the single-chip computer, and a plurality of inlet fans are fixed inside the air inlet hole, and the plurality of inlet fans are electrically connected to the single-chip computer.
[0008] As a further solution of the utility model, a fixed disk is provided on the bottom surface of the shell, a driving motor is fixed on the bottom surface of the fixed disk, a matching hole is opened on the top surface of the fixed disk, a rotating shaft is fixed inside the matching hole, the rotating shaft is fixed to the bottom surface of the shell, and the output end of the driving motor extends to the inside of the matching hole and is fixed at the bottom end of the rotating shaft.
[0009] As a further solution of the utility model, a fixing groove is opened on one side of the mounting plate, a plurality of locking shafts are slidably arranged inside the fixing groove, a fixing frame is fixed on one side of the infrared lens, and the locking shafts are fixed to one side of the fixing frame.
[0010] As a further solution of the utility model, a guide plate is fixed to one side of the inner wall of the shell, one side of the guide plate is an arc surface, and the guide plate is located between the shell and the mounting plate.
[0011] As a further solution of the utility model, filters are fixed inside the air outlet and the air inlet.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The enhanced infrared signal sensing device, through the setting of the signal enhancement structure, the infrared lens makes the external infrared light focus on the infrared sensor, and at the same time the low noise amplifier amplifies the received weak signal, and the aluminum alloy shell shields the external electromagnetic interference, so as to enhance the infrared sensor signal. In hot weather, the temperature sensor monitors the temperature inside the shell. When the temperature reaches the level that affects the infrared sensor model reception, the temperature sensor feeds back a signal to the single-chip microcomputer, and the single-chip microcomputer dynamically adjusts the output of the infrared sensor according to the temperature change. At the same time, the single-chip microcomputer starts the intake fan, and the intake fan sends the external fresh air into the rear side of the mounting plate in the shell through the air inlet hole. The fresh air enters the front side of the mounting plate through the gap between the mounting plate and the shell and is discharged from the air outlet, so as to form a heat dissipation duct, dissipate heat to the internal components of the shell, reduce the influence of the temperature increase on the signal of the infrared sensor, thereby enhancing the signal perception ability of the infrared sensor and improving its perception effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of an enhanced infrared signal sensing device proposed by the utility model;
[0015] Figure 2 This is a schematic diagram of the split structure of an enhanced infrared signal sensing device proposed by the utility model;
[0016] Figure 3 This is a schematic diagram of the split structure of the housing of an enhanced infrared signal sensing device proposed by the utility model;
[0017] Figure 4 This is a schematic diagram of the split structure of the mounting plate of an enhanced infrared signal sensing device proposed by the utility model;
[0018] Figure 5 The utility model proposes an enhanced infrared signal sensing device Figure 4Enlarged structural diagram at A in the middle.
[0019] In the figure: 1. Shell; 2. Mounting plate; 201. Infrared sensor; 202. Low noise amplifier; 203. Air inlet; 204. Temperature sensor; 205. Inlet fan; 206. Infrared lens; 207. Air outlet; 3. Fixed plate; 301. Opposite hole; 302. Rotating shaft; 4. Fixed groove; 401. Locking shaft; 402. Fixed bracket; 5. Guide plate; 6. Filter. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] Reference Figure 1-Figure 5 , an enhanced infrared signal sensing device, comprising a shell 1, a signal enhancing structure is arranged inside the shell 1, the signal enhancing structure comprises a mounting plate 2 fixed inside the shell 1, a gap is left between one side of the mounting plate 2 and one side of the inner wall of the shell 1, an infrared sensor 201 is fixed on the front side of the mounting plate 2, a low-noise amplifier 202 is fixed on the front side of the mounting plate 2, the low-noise amplifier 202 is electrically connected to the infrared sensor 201, a single-chip microcomputer is fixed on the front side of the mounting plate 2, the single-chip microcomputer is electrically connected to the infrared sensor 201, an infrared lens 206 is arranged on one side of the infrared sensor 201, the low-noise amplifier 202 and the single-chip microcomputer are both existing technologies, and the shell 1 is made of aluminum alloy.
[0024] In this embodiment, an air inlet 203 and an air outlet 207 are provided on one side of the shell 1, a temperature sensor 204 is fixed on the front side of the mounting plate 2, the temperature sensor 204 is electrically connected to the single-chip computer, a plurality of air inlet fans 205 are fixed inside the air inlet 203, and the plurality of air inlet fans 205 are electrically connected to the single-chip computer. By setting a signal enhancement structure, the staff starts the infrared sensor 201 for monitoring. When the infrared sensor 201 is monitoring, the infrared lens 206 focuses the external infrared light on the infrared sensor 201, and at the same time the low-noise amplifier 202 amplifies the received weak signal. The shell 1 made of aluminum alloy shields the external electromagnetic interference, thereby enhancing the signal of the infrared sensor 201. When the air is in the air, the temperature sensor 204 monitors the internal temperature of the shell 1. When the temperature reaches the level that affects the reception of the infrared sensor 201 model, the temperature sensor 204 feeds back a signal to the single-chip microcomputer. The single-chip microcomputer dynamically adjusts the output of the infrared sensor 201 according to the temperature change. At the same time, the single-chip microcomputer starts the intake fan 205. The intake fan 205 sends the fresh air from the outside into the rear side of the mounting plate 2 in the shell 1 through the air inlet hole 203. The fresh air enters the front side of the mounting plate 2 through the gap between the mounting plate 2 and the shell 1 and is discharged from the air outlet 207, thereby forming a heat dissipation duct to dissipate the heat of the internal components of the shell 1, reduce the influence of the temperature increase on the signal of the infrared sensor 201, thereby enhancing the signal perception capability of the infrared sensor 201 and improving its perception effect.
[0025] In this embodiment, a fixing disk 3 is provided on the bottom surface of the shell 1, a driving motor is fixed on the bottom surface of the fixing disk 3, a hole 301 is opened on the top surface of the fixing disk 3, a rotating shaft 302 is fixed inside the hole 301, the rotating shaft 302 is fixed to the bottom surface of the shell 1, and the output end of the driving motor extends to the inside of the hole 301 and is fixed to the bottom end of the rotating shaft 302. When it is necessary to adjust the sensing range of the infrared sensor 201, the staff can start the driving motor to drive the shell 1 to rotate through the rotating shaft 302, thereby adjusting the sensing range of the infrared sensor 201.
[0026] In this embodiment, a fixing groove 4 is opened on one side of the mounting plate 2, and a plurality of locking shafts 401 are slidably arranged inside the fixing groove 4. A fixing frame 402 is fixed on one side of the infrared lens 206, and the locking shaft 401 is fixed to one side of the fixing frame 402. When the infrared lens 206 needs to be disassembled, assembled or replaced, the staff can rotate the fixing frame 402 to unlock the locking shaft 401 and the fixing groove 4, thereby replacing the infrared lens 206.
[0027] In this embodiment, a guide plate 5 is fixed to one side of the inner wall of the shell 1. One side of the guide plate 5 is an arc surface. The guide plate 5 is located between the shell 1 and the mounting plate 2. When the inlet fan 205 dissipates heat inside the shell 1, the guide plate 5 guides the fresh air to improve the heat dissipation effect.
[0028] In this embodiment, a filter screen 6 is fixed inside the air outlet 207 and the air inlet 203 , and the filter screen 6 can prevent external dust and impurities from entering the housing 1 and affecting the internal components thereof.
[0029] Working principle: During use, the staff starts the infrared sensor 201 for monitoring. When the infrared sensor 201 is monitoring, the infrared lens 206 focuses the external infrared light on the infrared sensor 201. At the same time, the low-noise amplifier 202 amplifies the received weak signal. The shell 1 made of aluminum alloy shields the external electromagnetic interference, thereby enhancing the signal of the infrared sensor 201. In hot weather, the temperature sensor 204 monitors the internal temperature of the shell 1. When the temperature reaches the level that affects the reception of the infrared sensor 201 model, the temperature sensor 204 feeds back the signal to the single-chip microcomputer. The single-chip microcomputer dynamically adjusts the output of the infrared sensor 201 according to the temperature change. At the same time, the single-chip microcomputer starts the intake fan 205. The intake fan 205 sends the fresh air from the outside into the rear side of the mounting plate 2 in the shell 1 through the air inlet hole 203. The fresh air is blown from the mounting plate 2 and There is a gap between the shells 1 to enter the front side of the mounting plate 2 and be discharged from the air outlet 207, thereby forming a heat dissipation duct to dissipate the heat of the internal components of the shell 1 and reduce the impact of the temperature increase on the signal of the infrared sensor 201. When it is necessary to adjust the sensing range of the infrared sensor 201, the staff can start the drive motor to drive the shell 1 to rotate through the rotating shaft 302, thereby adjusting the sensing range of the infrared sensor 201. When it is necessary to disassemble and replace the infrared lens 206, the staff can rotate the fixing frame 402 to unlock the locking shaft 401 and the fixing groove 4, thereby replacing the infrared lens 206. When the air inlet fan 205 dissipates heat inside the shell 1, the guide plate 5 guides the fresh air to improve the heat dissipation effect. The filter 6 can prevent external dust and impurities from entering the shell 1 and affecting its internal components.
[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. An enhanced infrared signal sensing device, comprising a housing (1), characterized in that: A signal enhancement structure is arranged inside the shell (1), the signal enhancement structure comprising a mounting plate (2) fixed inside the shell (1), a gap being left between one side of the mounting plate (2) and one side of the inner wall of the shell (1), an infrared sensor (201) being fixed on the front side of the mounting plate (2), a low-noise amplifier (202) being fixed on the front side of the mounting plate (2), the low-noise amplifier (202) being electrically connected to the infrared sensor (201), a single-chip microcomputer being fixed on the front side of the mounting plate (2), the single-chip microcomputer being electrically connected to the infrared sensor (201), and an infrared lens (206) being arranged on one side of the infrared sensor (201).
2. The device for enhancing infrared signal perception according to claim 1, characterized in that: An air inlet hole (203) and an air outlet hole (207) are provided on one side of the housing (1); a temperature sensor (204) is fixed on the front side of the mounting plate (2); the temperature sensor (204) is electrically connected to the single-chip computer; a plurality of air inlet fans (205) are fixed inside the air inlet hole (203); and the plurality of air inlet fans (205) are electrically connected to the single-chip computer.
3. The device for enhancing infrared signal perception according to claim 2, characterized in that: The bottom surface of the housing (1) is provided with a fixing plate (3), the bottom surface of the fixing plate (3) is fixed with a driving motor, the top surface of the fixing plate (3) is provided with a matching hole (301), a rotating shaft (302) is fixed inside the matching hole (301), the rotating shaft (302) is fixed to the bottom surface of the housing (1), and the output end of the driving motor extends to the inside of the matching hole (301) and is fixed to the bottom end of the rotating shaft (302).
4. The device for enhancing infrared signal perception according to claim 3, characterized in that: A fixing groove (4) is provided on one side of the mounting plate (2), a plurality of locking shafts (401) are slidably arranged inside the fixing groove (4), a fixing frame (402) is fixed on one side of the infrared lens (206), and the locking shafts (401) are fixed to one side of the fixing frame (402).
5. The device for enhancing infrared signal perception according to claim 4, characterized in that: A guide plate (5) is fixed to one side of the inner wall of the shell (1); one side of the guide plate (5) is an arc surface; the guide plate (5) is located between the shell (1) and the mounting plate (2).
6. The device for enhancing infrared signal perception according to claim 5, characterized in that: Filter screens (6) are fixed inside the air outlet (207) and the air inlet (203).