Method and device for adjusting reciprocating rotation angle range according to infrared induction signal

Abstract

The invention provides a method for adjusting a reciprocating rotation angle range according to an infrared induction signal, and the method comprises the steps that an infrared induction module outputs two different signal states according to whether a heat source is detected in a detection range of the infrared induction module; and a proper reciprocating rotation angle range is set according to the signal combination of the infrared induction module, the rotation direction of the rotation main body and the current position of the rotation main body. The invention further provides a device for adjusting the reciprocating rotation angle range according to the infrared induction signal. The reciprocating rotation angle range can be adjusted through few infrared induction modules, the human body requirements are met, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of electrical appliances, and in particular to a method and device for adjusting a reciprocating rotation angle range according to an infrared sensing signal. Background Art

[0002] Existing appliances with automatic reciprocating rotation functions, such as automatic oscillating fans, often rotate within a fixed range, resulting in less direct contact with people and most of the time idling. Some household fans are equipped with infrared sensing modules, but they can only simply determine whether there is someone nearby to turn the machine on and off, or determine whether there is someone in a certain direction to achieve directional blowing. When there are multiple people nearby, it is impossible to determine the reciprocating rotation angle range that is suitable for the position of the people.

[0003] Chinese invention patent CN106870427B discloses a fan control method and a human body sensing fan, which periodically scans the position of people through a large number of infrared sensor arrays to calculate the appropriate reciprocating rotation angle range. Because this method uses a large number of infrared sensors and has a complex algorithm, it is costly and difficult to promote. Summary of the invention

[0004] The present application provides a method and device for adjusting the reciprocating rotation angle range according to an infrared sensing signal to solve the problems existing in the prior art.

[0005] A method for adjusting a reciprocating rotation angle range according to an infrared sensing signal, comprising:

[0006] The infrared sensing module outputs two different signal states depending on whether a heat source is detected within its detection range;

[0007] According to the signal combination of the infrared sensing module, the rotation direction of the rotating body, and the current position of the rotating body, the reciprocating rotation angle range is set, and the steps include:

[0008] When the rotating body rotates to the left, if the infrared sensing module facing the left front of the rotating body does not detect the heat source, and the infrared sensing module facing the front of the rotating body detects the heat source, the left edge of the latest reciprocating rotation angle range is set as the position of the rotating body at this time;

[0009] When the rotating body rotates to the right, if the infrared sensing module facing the right front of the rotating body does not detect the heat source, and the infrared sensing module facing the front of the rotating body detects the heat source, the right edge of the latest reciprocating rotation angle range is set as the position of the rotating body at this time.

[0010] When the angle between the left edge and the right edge of the latest reciprocating rotation angle range is smaller than the set threshold, and at the same time only the infrared sensing module facing the front of the rotating body detects the heat source, the rotating body stops rotating.

[0011] When the rotating body rotates to the left to the left edge of the latest reciprocating rotation angle range, it is determined whether the edge is the left edge of the maximum reciprocating rotation angle range. If the left edge is not the left edge of the maximum reciprocating rotation angle range, and the infrared sensing module facing the left front of the rotating body still detects the heat source, the direction is not reversed and the rotation to the left continues;

[0012] When the rotating body rotates to the right to the right edge of the latest reciprocating rotation angle range, it is determined whether the edge is the right edge of the maximum reciprocating rotation angle range. If the right edge is not the right edge of the maximum reciprocating rotation angle range, and the infrared sensing module facing the right front of the rotating body still detects a heat source, the direction will not be reversed and it will continue to rotate to the right.

[0013] When setting the left and right edges of the latest reciprocating rotation angle range, you can set a delay to compensate for the angle of the rotating body.

[0014] A device for adjusting the reciprocating rotation angle range according to infrared sensing signals comprises an infrared sensing module and a base.

[0015] The infrared sensing modules are arranged on the base, and the detection range of at least one infrared sensing module faces the front of the rotating body, the detection range of at least one infrared sensing module faces the left front of the rotating body, and the detection range of at least one infrared sensing module faces the right front of the rotating body.

[0016] The base is arranged on a rotating body of an electrical appliance with an automatic reciprocating rotation function.

[0017] The base is provided with a partition plate, which limits the detection angle of the infrared sensing module to reduce the detection range of the infrared sensing module. The detection angle of the infrared sensing module refers to the angle of the detection range of the infrared sensing module projected on the vertical plane along the rotation axis direction of the rotating body. The detection angle range of at least one infrared sensing module facing the front of the rotating body is limited to within 50° by the base partition plate.

[0018] Preferably, three groups of infrared sensing modules are provided on the base, facing respectively the front, left front and right front of the rotating body.

[0019] Preferably, the detection ranges of two adjacent infrared sensing modules partially overlap.

[0020] Preferably, the angle between the central axes of the detection ranges of two adjacent groups of infrared sensing modules is less than 60°.

[0021] The technical solution is further described below:

[0022] The present application provides a method and device for adjusting the reciprocating rotation angle range according to an infrared sensing signal, which is described by taking the installation on a fan that reciprocates horizontally as an example. In this embodiment, the rotating body is a fan rotating assembly consisting of a motor, a fan blade and a mesh cover. With the fan blowing direction as the front of the rotating body, three groups of infrared sensing modules are installed on the rotating body, the first infrared sensing module faces the left front of the rotating body, the second infrared sensing module faces the front of the rotating body, and the third infrared sensing module faces the right front of the rotating body.

[0023] When the infrared sensing module on the rotating body does not detect the heat source, the infrared sensing module outputs an "OFF" signal, and when the infrared sensing module on the rotating body detects the heat source, the infrared sensing module outputs an "ON" signal.

[0024] The rotating body detects multiple directions by driving the infrared sensing module to rotate, and dynamically determines the edge of the latest reciprocating rotation angle range according to the signal combination of the infrared sensing module to determine the appropriate latest reciprocating rotation angle range.

[0025] The latest reciprocating rotation angle range is determined according to the following method:

[0026] When the infrared sensing modules on the rotating body all output "OFF" signals, the rotating body reciprocates within the maximum reciprocating rotation angle range.

[0027] Assume that a person appears within the detection range of the first infrared sensing module at this time, and the first infrared sensing module outputs an "ON" signal. When the rotating body rotates to the left until it faces the person directly in front, the person is within the detection range of the second infrared sensing module. At this time, the first infrared sensing module outputs an "OFF" signal, and the second infrared sensing module outputs an "ON" signal. Set the left edge of the latest reciprocating rotation angle range as the position of the rotating body at this time. Then the rotation direction of the rotating body is reversed and turns to the right. At this time, since the rotating body is still facing the person directly in front, the second infrared sensing module still outputs an "ON" signal, and there is no person in the detection range of the third infrared sensing module, and an "OFF" signal is output. Set the right edge of the latest reciprocating rotation angle range as the position of the rotating body at this time. It is determined that the angles of the left edge of the latest reciprocating rotation angle range and the right edge of the latest reciprocating rotation angle range are less than the set threshold, and the rotating body stops rotating to achieve directional air supply.

[0028] Assume that there are two people in front of the rotating body, and the rotating body is in a state of rotating to the left. Person A is within the detection range of the second infrared sensing module, and Person B is within the detection range of the third infrared sensing module. At this time, the second infrared sensing module outputs an "ON" signal, and the first infrared sensing module outputs an "OFF" signal. Set the left edge of the latest reciprocating rotation angle range to the position of the rotating body at this time, and then reverse the rotation direction of the rotating body to turn right. When the rotating body rotates to the detection range of the second infrared sensing module covering Person B, the second infrared sensing module outputs an "ON" signal, and the third infrared sensing module outputs an "OFF" signal. Set the right edge of the latest reciprocating rotation angle range to the position of the rotating body at this time, and then reverse the rotation direction of the rotating body. Minimize the latest reciprocating rotation angle range as much as possible on the basis of covering Person A and Person B to reduce idling.

[0029] Continuing with the above assumption that there are two people in front of the rotating body, further explanation is given. Assume that the rotating body is rotating to the left and close to the left edge of the latest reciprocating rotation angle range, and at this time, a third person C enters the detection range of the first infrared sensing module. The rotating body rotates to the left edge of the latest reciprocating rotation angle range. At this time, the first infrared sensing module still outputs an "ON" signal. At this time, the left edge of the latest reciprocating rotation angle range is set to the left edge of the maximum reciprocating rotation angle range. The rotating body continues to rotate to the left. When the rotating body rotates to the detection range of the second infrared sensing module covering person C, the second infrared sensing module outputs an "ON" signal and the first infrared sensing module outputs an "OFF" signal. Set the left edge of the latest reciprocating rotation angle range as the position of the rotating body at this time, and then reverse the rotation direction of the rotating body. The latest reciprocating rotation angle range is minimized as much as possible on the basis of covering all people to reduce idling.

[0030] The present application provides a method and device for adjusting the reciprocating rotation angle range according to infrared sensing signals, which has the following beneficial effects:

[0031] The present application provides a method and device for adjusting the reciprocating rotation angle range according to an infrared sensing signal, wherein a base is arranged on a rotating body of an electrical appliance having an automatic reciprocating rotation function, and an infrared sensing module is arranged on the base, and arranged at a certain angle and position on a plane where the rotation direction of the rotating body is located. The infrared sensing module will output two different signal states depending on whether a heat source is detected. The rotating body drives the infrared sensing module to rotate, detects multiple directions, and dynamically determines the edge of the latest reciprocating rotation angle range according to the signal combination of the infrared sensing module to determine the appropriate latest reciprocating rotation angle range. Therefore, the present application uses fewer infrared sensing modules to achieve dynamic adjustment of the latest reciprocating rotation angle range, minimize the reciprocating rotation angle range, reduce invalid idling, meet human needs, and reduce manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of the present application, wherein:

[0033] Figure 1 A schematic diagram of the appearance of a device for adjusting the reciprocating rotation angle range according to an infrared sensing signal provided in the present application, when applied to a household oscillating fan.

[0034] Figure 2 A schematic diagram of the structure of a device for adjusting the reciprocating rotation angle range according to an infrared sensing signal provided in the present application, which is applied to a household oscillating fan.

[0035] Figure 3 A schematic diagram of the range of application of a device for adjusting the reciprocating rotation angle range according to infrared sensing signals provided in the present application to a household oscillating fan.

[0036] Figure 4 A method step diagram for adjusting the reciprocating rotation angle range according to infrared sensing signals provided in this application.

[0037] Figure 5 Schematic diagram of the latest change in the reciprocating rotation angle range.

[0038] Description of reference numerals:

[0039] 1-base, 2-base partition plate, 3-second infrared sensing module, 4-detection range of the second infrared sensing module, 5-first infrared sensing module, 6-detection range of the first infrared sensing module, 7-third infrared sensing module, 8-detection range of the third infrared sensing module, 9-rotating body, 10-fixed base, 11-rotating axis, 12-maximum reciprocating rotation angle range, 13-left edge of the maximum reciprocating rotation angle range, 14-right edge of the maximum reciprocating rotation angle range, 15-left edge of the latest reciprocating rotation angle range, 16-right edge of the latest reciprocating rotation angle range, 17-latest reciprocating rotation angle range. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the respective drawings. The words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to their different locations and different usage states. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0041] Please refer to the attached Figures 1 to 5 A method and device for adjusting the reciprocating rotation angle range according to infrared sensing signals is described below using an embodiment of the method for applying the method to a fan with an automatic reciprocating rotation function, including:

[0042] like Figures 1 to 3 As shown, the base 1 is mounted on the rotating body 9, and the rotating body 9 is mounted on the fixed base 10. The fixed base 10 has a rotating shaft 11, and the rotating body 9 reciprocates around the rotating shaft 11 within a certain angle range. A second infrared sensing module 3 is provided on the base 1, corresponding to the detection range 4 of the second infrared sensing module directly in front of the rotating body 9. A first infrared sensing module 5 is provided on the base 1, corresponding to the detection range 6 of the first infrared sensing module in the left front of the rotating body 9. A third infrared sensing module 7 is provided on the base 1, corresponding to the detection range 8 of the third infrared sensing module in the right front of the rotating body 9. A base partition plate 2 is provided on the base 1, and the base partition plate 2 limits the detection angle of the second infrared sensing module 3, so that the detection angle of the second infrared sensing module 3 is within 50°, so as to reduce the detection range 4 of the second infrared sensing module, so that the detection range 4 of the second infrared sensing module is closer to the actual air supply range.

[0043] like Figure 4 As shown, the method for dynamically adjusting the reciprocating rotation angle range according to the infrared sensing signal includes the following steps:

[0044] Step S110:

[0045] After starting, the fan reciprocates within the maximum reciprocating rotation angle range of 12 to obtain the current operating mode, and then the infrared sensor module starts detection.

[0046] The infrared sensing module rotates with the rotating body 9. When the rotating body 9 rotates to the left edge 15 of the latest reciprocating rotation angle range or the right edge 16 of the latest reciprocating rotation angle range, the rotation direction of the rotating body 9 is reversed. When the rotating body 9 rotates to the left edge 13 of the maximum reciprocating rotation angle range or the right edge 14 of the maximum reciprocating rotation angle range, the rotation direction of the rotating body 9 is reversed.

[0047] When just started, the left edge 15 of the latest reciprocating rotation angle range coincides with the left edge 13 of the maximum reciprocating rotation angle range, and the right edge 16 of the latest reciprocating rotation angle range coincides with the right edge 14 of the maximum reciprocating rotation angle range.

[0048] Step S120:

[0049] When there is a heat source within the detection range 4 of the second infrared sensing module, the second infrared sensing module 3 sends an "ON" signal.

[0050] When there is no heat source within the detection range 4 of the second infrared sensing module, the second infrared sensing module 3 sends an "OFF" signal.

[0051] When there is a heat source within the detection range 6 of the first infrared sensing module, the first infrared sensing module 5 sends an "ON" signal.

[0052] When there is no heat source within the detection range 6 of the first infrared sensing module, the first infrared sensing module 5 sends an "OFF" signal.

[0053] When there is a heat source within the detection range 8 of the third infrared sensing module, the third infrared sensing module 7 sends an "ON" signal.

[0054] When there is no heat source within the detection range 8 of the third infrared sensing module, the third infrared sensing module 7 sends an "OFF" signal.

[0055] Step S130:

[0056] When the rotating body 9 rotates to the left, when the second infrared sensing module 3 sends an "ON" signal and the first infrared sensing module 5 sends an "OFF" signal, the left edge 15 of the latest reciprocating rotation angle range is set as the current position of the rotating body 9, and then the rotation direction of the rotating body 9 is reversed.

[0057] Step S140:

[0058] When the rotating body 9 rotates to the right, when the second infrared sensing module 3 sends an "ON" signal and the third infrared sensing module 7 sends an "OFF" signal, the right edge 16 of the latest reciprocating rotation angle range is set as the current position of the rotating body 9, and then the rotation direction of the rotating body 9 is reversed.

[0059] Step S150:

[0060] When the angles of the left edge 15 of the latest reciprocating rotation angle range and the right edge 16 of the latest reciprocating rotation angle range are less than the set threshold, and the second infrared sensing module 3 sends an "ON" signal, the third infrared sensing module 7 sends an "OFF" signal, and the infrared sensing module 5 toward the left front of the rotating body 9 sends an "OFF" signal, the rotating body 9 stops rotating.

[0061] Step S160:

[0062] When the rotating body 9 rotates leftward to the left edge 13 of the maximum reciprocating rotation angle range and the first infrared sensing module 5 sends an “ON” signal, the left edge 15 of the latest reciprocating rotation angle range is set as the left edge 13 of the maximum reciprocating rotation angle range.

[0063] Step S170:

[0064] When the rotating body 9 rotates rightward to the right edge 14 of the maximum reciprocating rotation angle range and the third infrared sensing module 7 sends an “ON” signal, the right edge 16 of the latest reciprocating rotation angle range is set as the right edge 14 of the maximum reciprocating rotation angle range.

[0065] It is understandable that when setting the left edge 15 of the latest reciprocating rotation angle range and the right edge 16 of the latest reciprocating rotation angle range, a delay may be set to perform angle compensation for the rotating body.

[0066] Combine the following Figure 5 To explain:

[0067] When there is only one user, such as Figure 5 As shown in (a), there is only one heat source, which is within the detection range 8 of the third infrared sensing module. After powering on, the rotating body 9 rotates according to the default maximum range 12. At the same time, the first infrared sensing module 5 sends an "OFF" signal, the second infrared sensing module 3 sends an "OFF" signal, and the third infrared sensing module 7 sends an "ON" signal.

[0068] When the rotating body 9 rotates rightward to Figure 5 (b) When the heat source is in the detection range 4 of the second infrared sensing module, the second infrared sensing module 3 sends an "ON" signal, and there is no heat source in the detection range 8 of the third infrared sensing module, and the third infrared sensing module 7 sends an "OFF" signal. The right edge 16 of the latest reciprocating rotation angle range is set as the current position of the rotating body 9, and then the rotation direction of the rotating body 9 is reversed to the left.

[0069] Then, at this time, the heat source is still within the detection range 4 of the second infrared sensing module, and the second infrared sensing module 3 sends an "ON" signal. At the same time, there is no heat source within the detection range 6 of the first infrared sensing module, and the first infrared sensing module 5 sends an "OFF" signal. The left edge 15 of the latest reciprocating rotation angle range is set as the current position of the rotating body 9, and then the rotation direction of the rotating body 9 is reversed.

[0070] Then, at this time, the heat source is still within the detection range 4 of the second infrared sensing module, and the second infrared sensing module 3 sends an "ON" signal. At the same time, there is no heat source within the detection range 8 of the third infrared sensing module, and the third infrared sensing module 7 sends an "OFF" signal. There is no heat source within the detection range 6 of the first infrared sensing module, and the first infrared sensing module 5 sends an "OFF" signal. At this time, it is determined that the angles of the left edge 15 of the latest reciprocating rotation angle range and the right edge 16 of the latest reciprocating rotation angle range are less than the set threshold, and the rotating body stops rotating to achieve single-person directional air supply.

[0071] When there are two users, such as Figure 5 (c) Figure 5 (d) Figure 5 As shown in (e), there are two heat sources A and B within the maximum reciprocating rotation angle range 12 of the fan, a part of the heat source A is within the detection range 6 of the first infrared sensing module, and the other part is within the detection range 4 of the second infrared sensing module, and the heat source B is within the detection range 8 of the third infrared sensing module. After starting up, the rotating body 9 rotates within the maximum reciprocating rotation angle range 12, first rotating to the left, as shown in FIG. Figure 5 (c) At this time, the first infrared sensing module 5 sends an "ON" signal, the second infrared sensing module 3 sends an "ON" signal, and the third infrared sensing module 7 sends an "ON" signal.

[0072] When the rotating body 9 rotates leftward to Figure 5 (d) When the heat source A is in the detection range 4 of the second infrared sensing module, the second infrared sensing module 3 sends an "ON" signal, and there is no heat source in the detection range 6 of the first infrared sensing module, and the first infrared sensing module 5 sends an "OFF" signal. The left edge 15 of the latest reciprocating rotation angle range is set as the current position of the rotating body 9, and then the rotation direction of the rotating body 9 is reversed to turn right.

[0073] Then, the rotating body 9 is rotated rightward to Figure 5 (e) When the heat source B is in the detection range 4 of the second infrared sensing module, the second infrared sensing module 3 sends an "ON" signal. At the same time, there is no heat source in the detection range 8 of the third infrared sensing module, and the third infrared sensing module 7 sends an "OFF" signal. The right edge 16 of the latest reciprocating rotation angle range is set as the current position of the rotating body 9, and then the rotation direction of the rotating body 9 is reversed to the left. At this time, the latest reciprocating rotation angle range 17 has been adjusted to a suitable range.

[0074] At this time, suppose a third user enters, such as Figure 5 In (f), when the rotating body 9 rotates to the left to the left edge 15 of the latest reciprocating rotation angle range, the heat source C is within the detection range 6 of the first infrared sensing module, and the first infrared sensing module 5 sends an "ON" signal. At this time, the left edge 15 of the latest reciprocating rotation angle range is set to the left edge 13 of the maximum reciprocating rotation angle range. Figure 5 (g) As shown. The rotating body 9 continues to rotate leftward. When the rotating body 9 rotates leftward to Figure 5 (h) When the second infrared sensing module 3 is in the position shown, the second infrared sensing module 3 sends an "ON" signal, and at the same time, there is no heat source in the detection range 6 of the first infrared sensing module, and the first infrared sensing module 5 sends an "OFF" signal. The left edge 15 of the latest reciprocating rotation angle range is set as the current position of the rotating body 9, and then the rotation direction of the rotating body 9 is reversed to turn right. At this time, the dynamic adjustment of the latest reciprocating rotation angle range 17 is completed.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for adjusting the reciprocating rotation angle range according to infrared sensing signals, characterized in that: The following steps are involved: The infrared sensing module outputs two different signals depending on whether a heat source is detected within its detection range; According to the signal combination of several infrared sensing modules, the rotation direction of the rotating body, and the current position of the rotating body, the reciprocating rotation angle range is set, and the steps include: When the rotating body rotates to the left, if the infrared sensing module facing the left front of the rotating body does not detect the heat source, and the infrared sensing module facing the front of the rotating body detects the heat source, the left edge of the latest reciprocating rotation angle range is set as the position of the rotating body at this time; When the rotating body rotates to the right, if the infrared sensing module facing the right front of the rotating body does not detect the heat source, and the infrared sensing module facing the front of the rotating body detects the heat source, the right edge of the latest reciprocating rotation angle range is set as the position of the rotating body at this time.

2. The method for adjusting the reciprocating rotation angle range according to the infrared sensing signal according to claim 1, characterized in that: When the angle between the left edge and the right edge of the latest reciprocating rotation angle range is smaller than the set threshold, and at the same time only the infrared sensing module facing the front of the rotating body detects the heat source, the rotating body stops rotating.

3. The method for adjusting the reciprocating rotation angle range according to the infrared sensing signal according to claim 1, characterized in that: When the rotating body rotates to the left to the left edge of the latest reciprocating rotation angle range, it is determined whether the edge is the left edge of the maximum reciprocating rotation angle range. If the left edge is not the left edge of the maximum reciprocating rotation angle range, and the infrared sensing module facing the left front of the rotating body still detects the heat source, the direction is not reversed and the rotation to the left continues; When the rotating body rotates to the right to the right edge of the latest reciprocating rotation angle range, it is determined whether the edge is the right edge of the maximum reciprocating rotation angle range. If the right edge is not the right edge of the maximum reciprocating rotation angle range, and the infrared sensing module facing the right front of the rotating body still detects a heat source, the direction will not be reversed and it will continue to rotate to the right.

4. The method for adjusting the reciprocating rotation angle range according to infrared sensing signals according to claim 1, characterized in that: When setting the left and right edges of the latest reciprocating rotation angle range, a delay can be set to compensate for the angle of the rotating body.

5. A device for adjusting the reciprocating rotation angle range according to an infrared sensing signal, comprising an infrared sensing module and a base, characterized in that: include: The infrared sensing modules are arranged on the base, and the detection range of at least one infrared sensing module is toward the front of the rotating body; The detection range of at least one infrared sensing module is toward the left front of the rotating body; the detection range of at least one infrared sensing module is toward the right front of the rotating body; The base is arranged on a rotating body of an electrical appliance with an automatic reciprocating rotation function.

6. The device for adjusting the reciprocating rotation angle range according to infrared sensing signals according to claim 5, characterized in that: The base is provided with a partition plate, which limits the detection angle of the infrared sensing module to reduce the detection range of the infrared sensing module; the detection angle of the infrared sensing module refers to the angle of the detection range of the infrared sensing module projected onto a vertical plane along the rotation axis direction of the rotating body.

7. The device for adjusting the reciprocating rotation angle range according to infrared sensing signals according to claim 5, characterized in that: The detection angle range of at least one infrared sensing module facing the front of the rotating body is limited to within 50 degrees by the base partition plate.

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