A scanning imaging based temperature measuring device

Abstract

The utility model discloses a kind of temperature measuring device based on scanning imaging, it is related to infrared temperature measurement technical field, including driving mechanism, the bearing mechanism connected with driving mechanism, the temperature measuring mechanism connected with bearing mechanism, the dustproof mechanism connected with temperature measuring mechanism, driving mechanism is used to drive bearing mechanism to move, dustproof mechanism is used to temperature measuring mechanism play dustproof effect. Driving mechanism includes support seat, screw rod is rotatably connected on support seat in one end, top plate is connected with the other end of screw rod, driving motor is coaxially connected with screw rod, the sliding rod is connected with support seat and top plate respectively in two ends, screw rod and sliding rod are connected with bearing mechanism respectively. The temperature measuring device based on scanning imaging provided by the utility model can move one-dimensional linear array sensor, and the detected data is synthesized two-dimensional temperature thermal image by scanning mode, so that the cost is saved while obtaining thermal image, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of infrared temperature measurement technology, specifically to a temperature measurement device based on scanning imaging. Background Technology

[0002] An infrared thermal imager is an instrument that determines the surface temperature by measuring the infrared energy radiated from the surface of a target. It uses an infrared detector and an optical imaging lens to receive the infrared radiation energy distribution pattern of the target and reflect it onto the photosensitive element of the infrared detector, thereby obtaining an infrared thermal image. This thermal image corresponds to the heat distribution field of the object's surface. In simple terms, an infrared thermal imager converts the invisible infrared energy emitted by an object into a visible thermal image. Different colors on the thermal image represent different temperatures of the measured object.

[0003] Currently, infrared temperature measurement products mainly utilize two technical approaches: spot thermometers and area array thermal imagers. Spot thermometers are advantageous due to their low cost, but they can only perform one-dimensional detection, lacking two-dimensional temperature information and unable to provide thermal images or videos. While area array thermal imagers can provide two-dimensional temperature thermal images, they are more expensive, with a single device typically costing tens or even hundreds of thousands of yuan. Therefore, to acquire thermal images while saving costs, a new temperature measurement device is needed. This invention addresses this technical problem. Utility Model Content

[0004] This invention provides a temperature measurement device based on scanning imaging, which can move a one-dimensional linear array sensor and synthesize a two-dimensional temperature thermal image by scanning the detected data. This saves costs and improves practicality while acquiring thermal images.

[0005] A temperature measuring device based on scanning imaging includes a driving mechanism, a support mechanism connected to the driving mechanism, a temperature measuring mechanism connected to the support mechanism, and a dustproof mechanism connected to the temperature measuring mechanism. The driving mechanism is used to drive the support mechanism to move, and the dustproof mechanism is used to protect the temperature measuring mechanism from dust.

[0006] Furthermore, the driving mechanism includes a support base, a lead screw rotatably connected to the support base at one end, a top plate connected to the other end of the lead screw, a drive motor coaxially connected to the lead screw, and a slide rod connected to the support base and the top plate at both ends respectively. The lead screw and the slide rod are respectively connected to the bearing mechanism.

[0007] Furthermore, the bearing mechanism includes a bearing plate connected to the lead screw and the slide bar, a slide rail formed on the bearing plate, the slide rail being connected to the temperature measuring mechanism, and a threaded groove and a through groove formed on the bearing plate, the threaded groove being connected to the lead screw and the through groove being connected to the slide bar.

[0008] Furthermore, the temperature measuring mechanism includes a slider connected to the slide rail, a connecting shell connected to the slider, a receiving cavity opened in the connecting shell, and a linear array sensor connected in the receiving cavity. The connecting shell is connected to the dustproof mechanism.

[0009] Furthermore, the dustproof mechanism includes an air outlet groove formed on the connecting shell and a ventilation pipe connected to the connecting shell. The air outlet groove communicates with the receiving cavity and is used to prevent dust from adhering to the linear array sensor.

[0010] Furthermore, several of the ventilation pipes are respectively connected to a main ventilation pipe, the main ventilation pipe is connected to an air supply pipe, and the air supply pipe is connected to a fan.

[0011] Furthermore, the support plate has a threaded hole one, and the slider has a threaded hole two, which are respectively connected to bolts.

[0012] One or more technical solutions proposed in this application have at least the following technical effects:

[0013] (1) The temperature measuring mechanism in this scheme is connected to the carrier mechanism, and the driving mechanism can drive the carrier mechanism to move, thereby enabling the temperature measuring mechanism to move, so that the temperature measuring mechanism that measures temperature in one dimension can perform scanning work, and the dustproof mechanism can prevent dust from adhering to the lens of the temperature measuring mechanism and prevent the lens of the temperature measuring mechanism from being contaminated.

[0014] (2) The carrier plate in this scheme is equipped with a slide rail, so that several temperature measuring mechanisms can be connected to the carrier plate through the slide rail, thereby achieving a linear array arrangement of several temperature measuring mechanisms. The collected temperature data can be converted into a two-dimensional thermal image, thereby increasing the width of the generated two-dimensional image through the above method.

[0015] (3) The air supplied by the fan can enter the ventilation pipe through the air supply pipe and the ventilation main pipe, and then enter the receiving cavity of the connecting shell. Finally, it is discharged from the air outlet. The air discharged from the air outlet will form an air curtain in front of the lens of the linear array sensor, which can blow away the dust near the lens of the linear array sensor, thus realizing the dustproof function. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the bearing plate in this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting shell structure in this utility model;

[0019] Figure 4 This is a cross-sectional view of the connecting shell of this utility model.

[0020] Legend: 1. Support base; 2. Slide rod; 3. Lead screw; 4. Connecting shell; 5. Linear array sensor; 6. Bearing plate; 7. Top plate; 8. Drive motor; 9. Ventilation main duct; 10. Ventilation pipe; 11. Slide rail; 12. Slider; 13. Fan; 14. Air outlet duct; 15. Receiving cavity; 16. Threaded hole two; 17. Through groove; 18. Threaded groove; 19. Threaded hole one. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] See Figures 1-4 This utility model proposes a temperature measuring device based on scanning imaging, including a driving mechanism, a supporting mechanism connected to the driving mechanism, a temperature measuring mechanism connected to the supporting mechanism, and a dustproof mechanism connected to the temperature measuring mechanism. The driving mechanism is used to drive the supporting mechanism to move, and the dustproof mechanism is used to protect the temperature measuring mechanism from dust.

[0025] Furthermore, the drive mechanism includes a support base 1, a lead screw 3 rotatably connected to the support base 1 at one end, a top plate 7 connected to the other end of the lead screw 3, a drive motor 8 coaxially connected to the lead screw 3, and a slide rod 2 connected to the support base 1 and the top plate 7 at both ends respectively. The lead screw 3 and the slide rod 2 are respectively connected to the bearing mechanism.

[0026] Furthermore, the bearing mechanism includes a bearing plate 6 connected to the lead screw 3 and the slide bar 2, a slide rail 11 opened on the bearing plate 6, the slide rail 11 being connected to the temperature measuring mechanism, and a threaded groove 18 and a through groove 17 opened on the bearing plate 6, the threaded groove 18 being connected to the lead screw 3, and the through groove 17 being connected to the slide bar 2.

[0027] Furthermore, the temperature measuring mechanism includes a slider 12 connected to the slide rail 11, a connecting shell 4 connected to the slider 12, a receiving cavity 15 formed within the connecting shell 4, and a linear array sensor 5 connected within the receiving cavity 15. The connecting shell 4 is connected to a dustproof mechanism. Several temperature measuring mechanisms are provided in this embodiment. Depending on the actual situation, a single mechanism can also be used. During use, all temperature measuring mechanisms need to be tightly connected for easy observation. Figure 1 The various temperature measuring mechanisms are spaced far apart, and they need to be closely fitted together during actual use.

[0028] Furthermore, the dustproof mechanism includes an air outlet slot 14 formed on the connecting housing 4 and a ventilation pipe 10 connected to the connecting housing 4. The air outlet slot 14 communicates with the receiving cavity 15 and is used to prevent dust from adhering to the linear array sensor 5.

[0029] Furthermore, several ventilation pipes 10 are connected to the main ventilation pipe 9, the main ventilation pipe 9 is connected to the air supply pipe, and the air supply pipe is connected to the fan 13.

[0030] Furthermore, the bearing plate 6 has a threaded hole 19 and the slider 12 has a threaded hole 16. The threaded hole 19 and the threaded hole 16 are respectively connected to bolts.

[0031] The working principle of this utility model is as follows:

[0032] First, select the appropriate number of temperature measuring mechanisms based on actual needs. The number of temperature measuring mechanisms will determine the width of the subsequent two-dimensional image. Next, connect the temperature measuring mechanisms sequentially to the supporting mechanism. Specifically, connect the slider 12 on the connecting shell 4 to the slide rail 11 on the supporting plate 6. The operator can move the linear array sensor 5 to the corresponding position by using the cooperation of the slider 12 and the slide rail 11. The supporting plate 6 has several threaded holes 19. When the threaded holes 19 and 16 are aligned, the operator can fix the position of the slider 12 using bolts. Thus, the installation of several temperature measuring mechanisms is achieved in the above manner.

[0033] Next, the drive motor 8 is activated, which drives the support plate 6 to move via the lead screw 3, thereby moving several temperature measuring mechanisms to perform scanning. Each scanning position corresponds to a precise spatial position. At each fixed scanning position, the linear array sensor 5 collects infrared analog signals along a horizontal line within the current field of view, converts the analog signals into digital signals, and then calculates the corresponding temperature value for each digital quantity. After scanning is completed, a complete two-dimensional temperature image is obtained. Taking the linear array sensor 5 as an example, if the linear array sensor 5 outputs data from 512 single points each time, the width of the subsequently generated two-dimensional image will be 512 pixels. However, the height of the two-dimensional image is not fixed and can be set by software to any value. For example, assuming the linear array sensor 5 can output 300 times per second, the synthesized two-dimensional image pixels can be 300*512 (1Hz) or 150*512 (2Hz). The generated two-dimensional image needs to be processed. Specifically, non-uniformity correction (using a two-point correction method in this embodiment) and spatial filtering algorithms are applied to the two-dimensional temperature data. Finally, through pseudo-color mapping, the data is transmitted via network cable to the host computer to be converted into an RGB image for display. The principle of processing the collected temperature to obtain the temperature image in the above method is common knowledge in the field and will not be elaborated here.

[0034] During the scanning process, the air supplied by the fan 13 can enter the ventilation pipe 10 through the air supply pipe and the ventilation main pipe 9, and then enter the receiving cavity 15 of the connecting shell 4, and finally be discharged from the air outlet 14. The air discharged from the air outlet 14 will form an air curtain in front of the lens of the linear array sensor 5, which can blow away the dust near the lens of the linear array sensor 5. In addition, in this way, some of the heat of the linear array sensor 5 can also be carried away, which can achieve a cooling effect to a certain extent.

[0035] The technical features not described in detail in this solution are based on the conventional operation and general understanding of those skilled in the art and are derived from existing technologies, and will not be elaborated further here.

[0036] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A temperature measuring device based on scanning imaging, characterized in that, It includes a drive mechanism, a support mechanism connected to the drive mechanism, a temperature measuring mechanism connected to the support mechanism, and a dustproof mechanism connected to the temperature measuring mechanism. The drive mechanism is used to drive the support mechanism to move, and the dustproof mechanism is used to prevent dust from entering the temperature measuring mechanism.

2. The temperature measuring device based on scanning imaging according to claim 1, characterized in that, The driving mechanism includes a support base (1), a lead screw (3) rotatably connected to the support base (1) at one end, a top plate (7) connected to the other end of the lead screw (3), a drive motor (8) coaxially connected to the lead screw (3), and a slide rod (2) connected to the support base (1) and the top plate (7) at both ends respectively. The lead screw (3) and the slide rod (2) are respectively connected to the bearing mechanism.

3. The temperature measuring device based on scanning imaging according to claim 2, characterized in that, The bearing mechanism includes a bearing plate (6) connected to the lead screw (3) and slide bar (2), and a slide rail (11) opened on the bearing plate (6). The slide rail (11) is connected to the temperature measuring mechanism. The bearing plate (6) is provided with a threaded groove (18) and a through groove (17). The threaded groove (18) is connected to the lead screw (3), and the through groove (17) is connected to the slide bar (2).

4. The temperature measuring device based on scanning imaging according to claim 3, characterized in that, The temperature measuring mechanism includes a slider (12) connected to the slide rail (11), a connecting shell (4) connected to the slider (12), a receiving cavity (15) opened in the connecting shell (4), and a linear array sensor (5) connected in the receiving cavity (15). The connecting shell (4) is connected to the dustproof mechanism.

5. The temperature measuring device based on scanning imaging according to claim 4, characterized in that, The dustproof mechanism includes an air outlet groove (14) opened on the connecting shell (4) and a ventilation pipe (10) connected to the connecting shell (4). The air outlet groove (14) is connected to the receiving cavity (15) and is used to prevent dust from adhering to the linear array sensor (5).

6. The temperature measuring device based on scanning imaging according to claim 5, characterized in that, Several ventilation pipes (10) are connected to a main ventilation pipe (9), the main ventilation pipe (9) is connected to an air supply pipe, and the air supply pipe is connected to a fan (13).

7. The temperature measuring device based on scanning imaging according to claim 4, characterized in that, The bearing plate (6) has a threaded hole 1 (19) and the slider (12) has a threaded hole 2 (16). The threaded hole 1 (19) and the threaded hole 2 (16) are respectively connected to bolts.

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