Infrared temperature measurement sensor field angle testing device and control system

Abstract

The utility model relates to the technical field of infrared temperature measurement, in particular to an infrared temperature measurement sensor field angle testing device and a control system. The utility model provides a field angle testing device for an infrared temperature measurement sensor. The field angle testing device comprises a tested sensor, an infrared signal source, an infrared sensor testing bracket, an infrared signal source bracket and a parallel moving slide rail, the tested sensor is arranged on the infrared sensor testing bracket; the tested sensor can move up and down in the vertical direction, and the infrared sensor testing bracket can rotate circumferentially to adjust an angle formed by the infrared sensor testing bracket and the infrared signal source; the infrared signal source is arranged on the infrared signal source bracket; the infrared signal source irradiates the sensor to be tested, so that the sensor to be tested forms a feedback signal; the parallel movement sliding rail is perpendicular to the infrared sensor testing support and the infrared signal source support, and the parallel movement sliding rail enables the infrared signal source support to move in the horizontal direction.

Description

Technical Field

[0001] The utility model relates to the technical field of viewing angle testing, in particular to a viewing angle testing device and a control system for an infrared temperature measuring sensor. Background Art

[0002] At present, single-point infrared temperature sensors are mainly used in the field of temperature measurement, and gradually expanded to the field of kitchen and bathroom appliances. For example, microwave ovens use single-point infrared sensors to adjust from traditional timed power to temperature-controlled power to heat food; another example is the linkage induction of range hoods, where a single-point infrared sensor monitors the temperature of two stoves, and the range hood automatically starts exhaust after the stove is turned on. When users use microwave ovens to heat milk or beverages, there will be differences in the position and volume of the measured target. At the same time, the temperature measurement application of the range hood linkage installs the single-point infrared temperature sensor at a height of 55 to 75 cm to monitor the temperature of the two stoves. In these temperature measurement applications, the field of view consistency of the single-point infrared temperature sensor will become particularly important. Due to the material structure of the single-point infrared temperature sensor, the dimensional tolerance and the production process, there is no way to achieve the ideal design value, and a certain combination offset will occur more or less, resulting in the obtained field of view angle not being the field of view angle under the ideal state. When actually measuring small volumes or long distances, the temperature measurement difference is more obvious. Therefore, more and more customers are concerned about the field of view of the sensor, and such products cannot be screened out by the standard blackbody temperature.

[0003] Based on the above problems, there is an urgent need for a field of view angle testing device for an infrared temperature sensor. Utility Model Content

[0004] The utility model aims to provide a device for testing the viewing angle of an infrared temperature sensor, which is used to solve the problem that the viewing angle cannot reach an ideal state, especially when measuring the temperature of a small volume, the measured temperature difference is obvious.

[0005] The first aspect of the utility model provides a field angle test device for an infrared temperature sensor, comprising: an infrared signal source, an infrared sensor test bracket, an infrared signal source bracket and a parallel moving slide rail;

[0006] The infrared sensor test bracket is used to place the infrared sensor, the infrared sensor test bracket is used to adjust the vertical position of the infrared sensor, and the infrared sensor test bracket can rotate around an axis to adjust the angle formed by the infrared sensor and the infrared signal source;

[0007] The infrared signal source is arranged on the infrared signal source bracket; the infrared signal source is used to emit infrared rays toward the infrared sensor;

[0008] The parallel moving slide rail is perpendicular to the infrared signal source bracket and is slidably connected to the infrared signal source bracket, so that the infrared signal source bracket moves along the parallel moving slide rail to adjust the relative position of the infrared signal source bracket and the infrared sensor test bracket.

[0009] Some practicable methods further include an isolation cover, which wraps the infrared signal source, the infrared sensor test bracket, the infrared signal source bracket and the parallel moving slide rail.

[0010] In some embodiments, the inner wall of the isolation cover is black.

[0011] Some practicable methods further include a light-transmitting hole, the aperture of which is 5 to 15 mm, and the light-transmitting hole is arranged on the infrared signal source bracket and is located on the optical path of the infrared signal source.

[0012] Some practicable embodiments further include a first servo motor, which is disposed on the infrared signal source bracket and is used to adjust the relative position of the infrared signal source bracket and the infrared sensor test bracket.

[0013] Some practicable embodiments further include a second rotary servo motor, which is disposed on the infrared sensor test bracket and is used to adjust the vertical position of the infrared sensor.

[0014] Some practicable embodiments further include a third rotary servo motor, which is disposed on the infrared sensor test bracket and is used to drive the infrared sensor test bracket to rotate circumferentially around an axis.

[0015] Some operative methods further include a servo motor driving module, which is respectively connected to the first servo motor, the second rotary servo motor and the third rotary servo motor; the servo motor driving module is used to control the movement of the first servo motor, the second rotary servo motor and the third rotary servo motor.

[0016] Some practicable methods further include a test platform box, wherein a sensor decoding board and a power supply are arranged in the test platform box;

[0017] The sensor decoding board is used to connect the infrared sensor;

[0018] The sensor decoding board is also used to receive a feedback signal formed by the infrared sensor sensing the infrared rays, decode the feedback signal, and transmit the decoded feedback signal to the host computer;

[0019] The servo motor drive module is also arranged in the test platform box;

[0020] The power supply is used to supply power to the infrared signal source, the servo motor drive module and the sensor decoding board.

[0021] A second aspect of the utility model provides a viewing angle test control system, which is applied to the aforementioned infrared temperature sensor viewing angle test device. The control system includes the infrared temperature sensor viewing angle test device.

[0022] Beneficial effects of the utility model:

[0023] A field of view angle test device for an infrared temperature sensor. When an infrared sensor is provided on an infrared sensor test bracket, the infrared sensor receives infrared rays emitted by an infrared signal source and forms a feedback signal. Next, after decoding the feedback signal, it can be known whether the field of view angle is an ideal field of view angle. If the field of view angle does not reach the ideal field of view angle, the relative position of the infrared sensor and the infrared sensor test bracket can be adjusted in the vertical direction, the relative position of the infrared sensor and the infrared signal source can be rotated around the axis, and / or the relative position of the infrared signal source bracket and the infrared sensor test bracket can be adjusted to correct the field of view angle. Next, the infrared signal source is measured by the infrared sensor to form a feedback signal. In other words, the relative position of the infrared signal source and the infrared sensor can be adjusted in multiple dimensions, including vertical, horizontal and circumferential directions, to thereby realize the correction of the field of view angle. By decoding the feedback signal, it can be known whether the infrared signal source and the infrared sensor can form an ideal field of view angle. When the field of view angle is not an ideal field of view angle, the infrared sensor test bracket and the infrared signal source bracket can be adjusted multiple times. The offset of the field of view angle is solved by the cooperation between the infrared sensor test bracket, the infrared signal source bracket and the parallel moving slide rail, so that the field of view angle is an ideal field of view angle, especially when performing small volume temperature measurement or long-distance temperature measurement, the temperature measurement difference can be reduced or eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of a field angle test device of an infrared temperature sensor of the utility model;

[0026] Figure 2 The utility model is a schematic diagram of a field angle testing device of an infrared temperature measuring sensor.

[0027] Description of reference numerals:

[0028] 1: infrared sensor; 2: infrared sensor test bracket; 3: infrared signal source; 4: infrared signal source bracket; 5: parallel moving slide rail; 6: light transmission hole; 7: first servo motor; 8: second rotary servo motor; 9: third rotary servo motor; 10: isolation cover; 11: test platform box. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] like Figure 1 As shown, the first aspect of the present application provides a field of view angle test device for an infrared temperature sensor, comprising: a sensor to be tested 1, an infrared signal source 3, an infrared sensor test bracket 2, an infrared signal source bracket 4 and a parallel movable slide rail 5.

[0033] The infrared sensor test bracket 2 can be provided with a sensor to be tested, such as the infrared sensor 1. Specifically, the infrared sensor test bracket 2 is used to adjust the vertical position of the infrared sensor 1, and the infrared sensor test bracket 2 can rotate around an axis to adjust the angle formed by the infrared sensor 1 and the infrared signal source 3.

[0034] The infrared signal source 3 is arranged on the infrared signal source bracket 4. The infrared signal source 3 is used to emit infrared rays directed to the infrared sensor 1. When the infrared sensor receives the infrared rays, a feedback signal is formed. The infrared signal source 3 provides a heating device higher than the ambient temperature. A PTC heating source can be selected, or a device made of MEMS (MEMS stands for Micro Electromechanical System) that can generate heat when powered on, or a traditional heating wire, etc. The heating temperature can be adjusted according to the voltage or current. Under normal circumstances, the maximum temperature can reach 350 degrees. During the field of view angle test of the infrared temperature sensor, the infrared signal source is in a power supply state, and the voltage for supplying power to the infrared signal source is 5 to 6.5V.

[0035] The parallel moving slide rail 5 is perpendicular to the infrared signal source bracket 4 and is slidably connected so that the infrared signal source bracket 4 moves along the parallel moving slide rail 5 to adjust the relative position of the infrared signal source bracket 4 and the infrared sensor test bracket 2 .

[0036] Specifically, the infrared sensor 1 is arranged on the infrared sensor test bracket 2; the infrared sensor 1 can move up and down in the vertical direction to form various angles with the heat source 3 for easy measurement. The parallel moving slide 5 is perpendicular to the infrared sensor test bracket 2 and the infrared signal source bracket 4. Exemplarily, the parallel moving slide 5, the infrared sensor test bracket 2 and the infrared signal source bracket 4 are on the same line.

[0037] In this example, the infrared sensor 1 receives the infrared rays emitted by the infrared signal source 3 and forms a feedback signal. Next, after decoding the feedback signal, it can be known whether the field of view angle is the ideal field of view angle. If the field of view angle does not reach the ideal field of view angle, the angle between the infrared sensor 1 and the infrared signal source 3 is adjusted to test again. In this way, the infrared sensor 1 is repeatedly used to measure the infrared signal source 3 to eventually form an ideal field of view angle. In other words, the relative position of the infrared signal source 3 and the infrared sensor 1 can be adjusted in multiple directions, including the vertical direction, the horizontal direction, and the circumferential direction, to form a feedback signal. Then, by decoding the feedback signal, it can be known whether the infrared signal source 3 and the infrared sensor 1 form an ideal field of view angle, especially when performing small-volume temperature measurement or long-distance temperature measurement, the temperature measurement difference can be reduced or eliminated.

[0038] It should be noted that if the infrared sensor 1 is a single-point infrared sensor, the field of view of the single-point infrared sensor is the center of the optical window of the infrared sensor 1 as the 0 axis, the maximum diameter of the target to be measured (infrared signal source) as the plane, and two sides are drawn from the two ends of the diameter to the 0 axis position of the infrared sensor 1 to form a triangle. The two sides corresponding to the 0 axis as the origin are the field of view of the infrared sensor 1. The field of view is defined as: find a standard black body heat source, place the infrared sensor 1 at a certain distance at the height of the center of the black body, move the infrared sensor 1 left or right or up and down, and during the movement, the temperature or energy of the infrared sensor 1 will have an obvious trend change. The maximum value of this trend is calculated to 50% position is called the unilateral field of view of the infrared sensor 1, and the unilateral field of view multiplied by 2 is the field of view of the infrared sensor 1.

[0039] In one embodiment, a field of view angle test device for an infrared temperature sensor further includes an isolation cover 10, which wraps the infrared sensor 1 (when the infrared sensor 1 is set on the infrared sensor test bracket 2), the infrared signal source 3, the infrared sensor test bracket 2, the infrared signal source bracket 4 and the parallel moving slide rail 5. The isolation cover 10 can be made of any natural material, such as metal, plastic or fiberglass, and the inner wall color is black. The isolation cover 10 is used to isolate the field of view angle test process of the infrared sensor 1, and the external heat source radiates to the infrared sensor 1, thereby affecting the test result protection device.

[0040] In one embodiment, a device for testing the field angle of an infrared temperature sensor further includes a light-transmitting hole 6, the aperture of which is 5 to 15 mm, preferably, the aperture of which is 10 mm, and the light-transmitting hole 6 is arranged on the infrared signal source bracket 4 and is located on the optical path of the infrared signal source 3, that is, the light emitted by the infrared signal source 3 passes through the light-transmitting hole 6 and then is emitted to the infrared sensor 1. The light-transmitting hole 6 is used to block the divergence of the infrared rays emitted by the infrared signal source 3 when the infrared rays are emitted, and to block unnecessary heat radiation, so as to reduce the influence of stray light on the infrared sensor 1 being measured. Thereby, the signal receiving effect of the infrared sensor 1 is improved.

[0041] In one embodiment, a field of view angle test device for an infrared temperature sensor further includes a first servo motor 7, which is arranged at the bottom of an infrared signal source bracket 4 and is used to drive the infrared signal source bracket 4 to slide on a parallel moving slide rail so as to adjust the relative position of the infrared signal source bracket 4 and the infrared sensor test bracket 2. In this way, if the infrared temperature sensor field of view angle test device is placed in a coordinate system, the first servo motor 7 can be used to adjust the relative position of the infrared signal source and the infrared sensor in the X-axis direction. It should be noted that the connection method between the first servo motor 7 and the infrared signal source bracket 4 is a conventional connection method, and the present application does not limit this. The first servo motor 7 is used to change the distance between the infrared signal source and the infrared sensor 1, and the change in the slope of the field of view angle of the infrared sensor 1 is reflected by the change in distance. The change in the slope of the field of view angle of the infrared sensor 1 can be analyzed by the temperature trend at different distances.

[0042] In one embodiment, a field of view angle testing device for an infrared temperature sensor further includes a second rotary servo motor 8, which is disposed on a groove of an infrared sensor testing bracket 2. The second rotary servo motor 8 is used to adjust the relative position of the infrared sensor 1 and the infrared signal source 3 in a vertical direction.

[0043] If the infrared temperature sensor field of view angle test device is placed in a coordinate system, that is, with the center point of the infrared sensor 1 as the 0 axis, the angle of the infrared sensor 1 relative to the infrared signal source 3 is moved up and down in the Y-axis direction. The moving angle can be within the range of ±90°, and the minimum resolution of the moving step is preferably 0.1 degree to maintain the accuracy of the infrared sensor 1 test process.

[0044] It should be noted that the connection method between the second rotary servo motor 8 and the infrared sensor 1 and the infrared sensor test bracket 2 is a conventional connection method, and the second rotary servo motor 8 can be used to adjust the relative position of the infrared sensor 1 and the infrared sensor test bracket 2. The present application does not limit the connection method between the second rotary servo motor 8 and the infrared sensor 1 and the infrared sensor test bracket 2, and it is sufficient to enable the second rotary servo motor 8 to adjust the position of the infrared sensor 1 in the groove in the infrared sensor test bracket 2.

[0045] In one embodiment, a field of view angle test device for an infrared temperature sensor also includes a third rotary servo motor 9, which is arranged at the bottom of an infrared sensor test bracket 2. If the field of view angle test device for the infrared temperature sensor is placed in a coordinate system, the third rotary servo motor 9 is used to rotate the infrared sensor test bracket 2 in the Z-axis direction. The moving angle is preferably 360°, and the use angle is preferably 0 to 180°.

[0046] It should be noted that the third rotary servo motor 9 is disposed at the bottom of the infrared sensor test bracket 2 to enable the infrared sensor test bracket 2 to rotate circumferentially. The present application does not limit the connection method between the third rotary servo motor 9 and the infrared sensor test bracket 2.

[0047] In this embodiment, the infrared sensor test bracket 2 is used to adjust the infrared sensor 1 in the Y-axis and Z-axis directions, and the infrared signal source bracket 4 and the parallel movable slide rail 5 are used to adjust the relative position between the infrared sensor 1 and the infrared signal source 3 in the X direction. In this way, the infrared sensor test bracket 2 can be used to adjust the infrared sensor 1 at multiple angles. In addition, the infrared signal source bracket 4 and the parallel movable slide rail 5 can be used to achieve the relative position of the infrared sensor 1 and the infrared signal source 3, thereby achieving the field angle adjustment of the infrared sensor 1, so as to reduce or eliminate the temperature measurement difference when actually performing small-volume temperature measurement or long-distance temperature measurement.

[0048] In one embodiment, a field of view angle testing device for an infrared temperature sensor also includes a servo motor drive module, which is respectively connected to the first servo motor, the second rotary servo motor and the third rotary servo motor, and the servo motor drive module is used to control the operation of the first servo motor 7, the second rotary servo motor 8 and the third rotary servo motor 9.

[0049] Among them, the servo motor driving module can be set at a designated position as needed. In this way, the first servo motor 7, the second rotary servo motor 8 and the third rotary servo motor 9 can be centrally controlled by using the servo motor driving module. That is to say, the operator can complete the actions of the first servo motor 7, the second rotary servo motor 8 and the third rotary servo motor 9 by controlling the servo motor driving module, thereby improving the operator's work efficiency.

[0050] like Figure 2 As shown, in one embodiment, a device for testing the field angle of an infrared temperature sensor further includes a test platform box 11, in which a power supply and a sensor decoding board are arranged.

[0051] Among them, the sensor decoder board is a replaceable PCBA (PCBA, Printed Circuit Board Assembly) module, the sensor decoder board is connected to the infrared sensor 1, the sensor decoder board receives the feedback signal, decodes the feedback signal, and transmits the decoded feedback signal to the host computer. It is also possible that when the feedback signal is a test digital signal, when the infrared sensor 1 outputting the digital signal is tested, it is replaced with the corresponding digital decoder board, and vice versa when the infrared sensor 1 outputting the analog signal is tested, it is replaced with the analog decoder board. In other words, the analog decoder board is used for simulation testing, and the sensor decoder board is used for actual measurement.

[0052] A servo motor drive module is also provided in the test platform box 11 .

[0053] The power supply is used to supply power to the infrared signal source 3, the servo motor driver module and the sensor decoding board.

[0054] Specifically, the feedback signal is decoded by the sensor decoding board so that the decoded feedback signal can be recognized by the host computer. That is, after each test of the infrared sensor 1, the feedback signal formed is sequentially transmitted to the host computer so that the host computer can recognize the result of each test and form corresponding test data.

[0055] Example

[0056] Step 1. Install the infrared sensor 1 to the position of the side groove of the infrared sensor test bracket 2, cover it with a metal protective cover, connect the host computer, which can be a PC host computer, turn on the power switch on the test platform box 11, turn on the PC host computer, click to start the test, and the servo motor drive module drives the third rotary servo motor 9 to work. The second servo motor rotates ±90° with 0.5° stepping around 0 degree as the center axis. During the rotation process, the PC host computer records the temperature value or energy value output by the infrared sensor 1 (the digital sensor is the temperature value, and the analog sensor is the energy voltage value, that is, the infrared sensor 1 can be a digital sensor or an analog sensor, depending on its internal working principle and the type of output signal). The field of view angle diagram is drawn by obtaining the temperature or energy value corresponding to the rotation angle of the third rotary servo motor 9. The drawn curve is the field of view angle of the horizontal axis.

[0057] Step 2. After the curve is drawn, the third rotary servo motor 9 moves to the angle corresponding to the highest temperature or energy of the horizontal axis and then stops, and then the second rotary servo motor 8 is started to rotate up and down. During the rotation process, the PC host computer records the temperature value or energy value output by the infrared sensor 1 (the digital sensor is the temperature value, and the analog sensor is the energy voltage value), and the field of view angle diagram is drawn by obtaining the temperature or energy value corresponding to the rotation angle of the second rotary servo motor 8. The drawn curve is the field of view angle of the vertical axis.

[0058] In order to confirm whether the field of view angle of the infrared sensor 1 presents a linear slope change, it is necessary to move the distance between the infrared signal source and the infrared sensor 1 through the parallel axis servo motor 7 (the distance between the infrared signal source and the infrared sensor 1 is 100mm under standard conditions). At a distance of 100mm, first perform steps 1 and 2 of the normal test process. After the test is completed, fill in and set the required moving distance on the PC host computer, click the distance movement button (the distance movement button is set on the host computer, which can control the first servo motor 7 to adjust the infrared signal source bracket 4 to move on the parallel moving slide rail 5), and the first servo motor 7 moves the required distance. After completing the set distance movement, the first servo motor 7 stops working, and then, the infrared temperature sensor field of view angle test device is repeated. Steps 1 and 2 of the normal test process are tested.

[0059] When there are multiple distance tests, the infrared temperature sensor viewing angle testing device of the utility model performs multiple 1 and 2 step tests according to the instructions issued by the host computer.

[0060] Finally, the slope analysis of the viewing angle is performed based on the discreteness and coincidence of the tested curves.

[0061] In summary, the use of the infrared temperature sensor field of view angle test device can form the curve discreteness and overlap to perform field of view angle slope analysis, so that the analysis results can be used to adjust the single-point infrared temperature sensor material structure with dimensional tolerances and production processes. There is no way to achieve the ideal design value, and there will be more or less combined offsets. The obtained field of view angle is the ideal field of view angle. In this way, when actually measuring small volume or long distance temperature, the temperature measurement difference is reduced or eliminated, so as to solve the problem of field of view angle of infrared sensors that more and more customers are concerned about, and at the same time solve the problem that such products cannot be screened out by standard blackbody temperature.

[0062] A second aspect of the present application provides a field of view angle test control system, which is applied to the aforementioned infrared temperature sensor field of view angle test device, and the control system includes the infrared temperature sensor field of view angle test device.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A device for testing the viewing angle of an infrared temperature sensor, characterized in that: include: Infrared signal source, infrared sensor test bracket, infrared signal source bracket and parallel moving slide rail; The infrared sensor test bracket is used to place the infrared sensor, the infrared sensor test bracket is used to adjust the vertical position of the infrared sensor, and the infrared sensor test bracket can rotate around an axis to adjust the angle formed by the infrared sensor and the infrared signal source; The infrared signal source is arranged on the infrared signal source bracket; The infrared signal source is used to emit infrared rays toward the infrared sensor; The parallel moving slide rail is perpendicular to the infrared signal source bracket and is slidably connected to the infrared signal source bracket, so that the infrared signal source bracket moves along the parallel moving slide rail to adjust the relative position of the infrared signal source bracket and the infrared sensor test bracket.

2. The infrared temperature sensor viewing angle testing device according to claim 1, characterized in that: It also includes an isolation cover, which wraps the infrared signal source, the infrared sensor test bracket, the infrared signal source bracket and the parallel moving slide rail.

3. The infrared temperature sensor viewing angle testing device according to claim 2, characterized in that: The inner wall of the isolation cover is black.

4. The infrared temperature sensor viewing angle testing device according to claim 1, characterized in that: It also includes a light-transmitting hole, the aperture of which is 5-15 mm. The light-transmitting hole is arranged on the infrared signal source bracket and is located on the optical path of the infrared signal source.

5. The infrared temperature sensor viewing angle testing device according to claim 1, characterized in that: It also includes a first servo motor, which is arranged on the infrared signal source bracket and is used to drive the infrared signal source bracket to slide on the parallel moving slide rail so as to adjust the relative position of the infrared signal source bracket and the infrared sensor test bracket.

6. The infrared temperature sensor viewing angle testing device according to claim 5, characterized in that: It also includes a second rotary servo motor, which is arranged on the infrared sensor test bracket and is used to adjust the vertical position of the infrared sensor.

7. The infrared temperature sensor viewing angle testing device according to claim 6, characterized in that: It also includes a third rotary servo motor, which is arranged on the infrared sensor test bracket and is used to drive the infrared sensor test bracket to rotate circumferentially around an axis.

8. The infrared temperature sensor viewing angle testing device according to claim 7, characterized in that: It also includes a servo motor drive module, which is connected to the first servo motor, the second rotary servo motor and the third rotary servo motor respectively; the servo motor drive module is used to control the movement of the first servo motor, the second rotary servo motor and the third rotary servo motor.

9. The infrared temperature sensor viewing angle testing device according to claim 8, characterized in that: It also includes a test platform box, in which a sensor decoding board and a power supply are arranged; The sensor decoding board is used to connect the infrared sensor; The sensor decoding board is also used to receive the feedback signal formed by the infrared sensor sensing the infrared rays, decode the feedback signal, and transmit the decoded feedback signal to the host computer; The servo motor drive module is also arranged in the test platform box; The power supply is used to supply power to the infrared signal source, the servo motor drive module and the sensor decoding board.

10. A viewing angle test control system, characterized in that: The infrared temperature sensor field angle test device applied to any one of claims 1 to 9, the control system comprises the infrared temperature sensor field angle test device.

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