Induction module, human body sensor and human body sensing system

Abstract

The application relates to the field of human body sensing devices, in particular to a sensing module, a human body sensor and a human body sensing system. The sensing module comprises a shell, a probe arranged in the shell, the shell being provided with a sensing port for the probe to receive a signal, a blocking assembly movably arranged in the shell, the blocking assembly being capable of shielding the sensing port, and the blocking assembly being capable of adjusting the shielding area of the sensing port through movement, and a driving assembly arranged in the shell and connected to the blocking assembly, the driving assembly being used for driving the blocking assembly to move. The movable design of the blocking assembly can change the effective detection range of the probe. The application has the effect of being applicable to various application scenarios.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of human body sensing device, in particular to a sensing module, a human body sensor and a human body sensing system. BACKGROUND

[0002] The human body sensing technology has been applied in the fields of security monitoring and energy saving control, and the common human body sensing device is a human body sensor with a pyroelectric infrared sensor. The pyroelectric infrared sensor can receive infrared radiation energy from the environment. Any object in nature except black body radiates infrared, and the wavelength of infrared obeys Wien displacement law. The human body itself radiates infrared with a specific wavelength, so the pyroelectric infrared sensor can detect the infrared of the human body to obtain the activity state of the human body, thereby sensing and detecting the presence of the human body in the preset range.

[0003] For example, in the field of energy saving control, the human body sensor can be arranged at the position of passageway stairs, public corridor and the like, and connected with the lighting system. The human body sensor can monitor the movement at night. As long as the personnel appear in the detection range, the human body sensor sends a signal to the lighting system to automatically light in the preset time. The human body sensor is also arranged in public areas such as library and self-study room, and connected with the lighting system or air conditioning system. The human body sensor can detect the personnel appearing in the detection range in real time, and the lighting system automatically adjusts the lighting brightness or the air conditioning system automatically adjusts the working mode. For example, in the field of security monitoring, the human body sensor can be arranged in a concealed position and connected with a burglar alarm. The human body sensor detects the personnel appearing in the detection range in real time, and the burglar alarm performs the alarm task based on the detection result of the human body sensor.

[0004] In the above specific applications, the detection range and detection sensitivity of the pyroelectric infrared sensor affect the working performance of the human body sensor. In order to improve the detection range and detection sensitivity, a Fresnel lens is usually added to the detection end of the pyroelectric infrared sensor in the prior art. The Fresnel lens can collect the infrared radiated by the human body to the sensitive element of the pyroelectric infrared sensor, thereby increasing the detection range. On the other hand, the Fresnel lens can periodically shield the incident infrared, so that the pyroelectric infrared sensor can output continuous signals more stably. However, the pyroelectric infrared sensor and the Fresnel lens are fixedly installed (such as fixedly installed by bolts). After the human body sensor is shipped, the pyroelectric infrared sensor and the Fresnel lens are not separated under normal circumstances, so that the detection range of the pyroelectric infrared sensor is fixedly unchanged, and the single detection of the human body sensor is limited to this range, which has great limitations.

[0005] The utility model discloses a kind of infrared detection device and install the display terminal of the infrared detection device, infrared detection device includes Fresnel lens and digital pyroelectric infrared sensor;Fresnel lens is used to focus infrared and propagate along the detection area divided by lens unit;Digital pyroelectric infrared sensor is used to sense the intensity variation of infrared in detection area and output electric signal.The above-mentioned infrared detection device is inducted by setting Fresnel lens to the intensity variation of detection area infrared quickly, but it is limited to the wide-range, single inductive detection provided by Fresnel lens.

[0006] The application patent publication CN110213862A discloses an intelligent controller for human body infrared detection, which includes a Fresnel lens, a human body infrared sensor, and a processing module. When the human body infrared sensor detects a human body within the detection range, it sends a signal to the processing module, which sends a signal to the lighting fixture to turn on the light. However, this also limits the wide-range, single inductive detection provided by the Fresnel lens. SUMMARY

[0007] The main purpose of the present application is to provide an inductive module that adjusts the effective inductive range of the inductive module to adjust the range of single human body inductive detection, solving the problem of large detection range limitation.

[0008] The main purpose of the present application is to provide a human body inductor that sets an inductive module with adjustable effective inductive range, solving the problem of large detection range limitation.

[0009] The main purpose of the present application is to provide a human body inductive detection system that controls the inductive module to switch different effective inductive ranges, solving the problem of large detection range limitation.

[0010] The main purpose of the present application is achieved through the following technical solutions:

[0011] An inductive module includes:

[0012] A housing;

[0013] A probe is set in the housing, which has a first inductive area.

[0014] A blocking component is movably installed in the housing, which can block the inductive port and adjust the blocking area of the inductive port through movement, so that the probe has a second inductive area smaller than the first inductive area.

[0015] a driving assembly disposed in the housing and connected to the blocking assembly, the driving assembly being configured to drive the blocking assembly to move so that the effective sensing range of the probe is passively changed from the first sensing area to the second sensing area.

[0016] By adopting the above technical solution, the blocking assembly is designed to be movable in the housing, the blocking assembly is moved to different states to adjust the shielding area of the sensing port, so that the probe has the first sensing area and the second sensing area with different sizes, and the first sensing area and the second sensing area respectively represent different effective sensing ranges of the probe. The driving assembly is designed to drive the blocking assembly to move, the driving assembly can drive the blocking assembly to move, so that the effective sensing range of the probe is passively changed from the first sensing area to the second sensing area, and the adjustment and control of the effective sensing range of the probe are completed. When the probe needs to use a larger effective detection range for detection, the probe can be adjusted to the first sensing area to increase the scanning angle range; when the probe needs to use a smaller effective detection range for detection, the probe can be adjusted to the second sensing area to reduce the scanning angle range.

[0017] Optionally, the blocking assembly comprises:

[0018] a blocking piece for shielding the sensing port;

[0019] a support shaft rotatably connected to the housing;

[0020] a connecting piece having two ends respectively connected to the blocking piece and the support shaft; the support shaft can drive the connecting piece to swing in a rotating manner, so as to drive the blocking piece to move around the probe at the sensing port.

[0021] By adopting the above technical solution, the connecting piece is arranged between the support shaft and the blocking piece, the support shaft drives the connecting piece to swing in a rotating manner, and the connecting piece drives the blocking piece to move in a circular motion around the support shaft in a swinging manner, so that the blocking piece moves at the sensing port.

[0022] Optionally, the blocking piece is provided with a detection window for providing the second sensing area, the detection window penetrates through the blocking piece, and when the blocking piece is in the closed state, the detection window and the probe pass through a reference center line pointing to the detection direction of the probe.

[0023] By adopting the above technical solution, the position of the detection window is designed, when the blocking piece is in the closed state, the detection window is opposite to the probe, the blocking piece partially shields the sensing port, and the signals in the environment can still enter the sensing port through the detection window, so as to provide the second sensing area for the probe.

[0024] Optionally, the number of the baffle pieces is at least two, and each of the baffle pieces is provided with a corresponding support shaft.

[0025] By using the above technical solution, the multiple baffle pieces are used to shield the induction port, the movement range of a single baffle piece is reduced, and the efficiency of state switching of the blocking assembly is improved.

[0026] Optionally, the number of the baffle pieces is two, and each of the baffle pieces is provided with a detection groove near a side of the baffle piece; when the two baffle pieces move to a closed state, the two baffle pieces can cover the induction port, and the two detection grooves can form a detection window for the probe to receive a signal.

[0027] By using the above technical solution, each of the baffle pieces is provided with a detection groove, and when the baffle pieces are relatively closed, the detection grooves on the baffle pieces enclose a detection window.

[0028] Optionally, each of the connecting pieces is provided with a magnetic piece, and when each of the baffle pieces is in a closed state, adjacent magnetic pieces attract each other to keep each of the baffle pieces in the closed state.

[0029] By using the above technical solution, adjacent magnetic pieces attract each other, and the attraction force can keep each of the baffle pieces in the closed state, thereby improving the integrity of the detection window. On the other hand, due to the range of the driving assembly or the transmission efficiency between the driving assembly and the support shaft, there may be a gap between the two baffle pieces after switching to the closed state. The attraction force between the two magnetic pieces can push the baffle pieces to keep the baffle pieces abutting each other, thereby improving the stability of the detection window.

[0030] Optionally, the baffle piece is provided with a positioning protrusion and a positioning groove matched with the positioning protrusion; when each of the baffle pieces is in a closed state, the positioning protrusion of any of the baffle pieces can be inserted into the positioning groove of the adjacent baffle piece.

[0031] By using the above technical solution, when the two baffle pieces are in a closed state, the positioning protrusions on one of the baffle pieces can be engaged with the positioning grooves on the other baffle piece. The engagement has a limiting effect on the two baffle pieces, limits the relative movement of the two baffle pieces after closing, reduces looseness, and aligns the two detection grooves, so that the detection window maintains a relatively complete shape.

[0032] Optionally, the two sides of the positioning protrusion gradually narrow away from the baffle piece, and the shape of the positioning groove matches the shape of the positioning protrusion.

[0033] By adopting the technical scheme, in the process that the two baffles gradually approach, the two sides of the positioning protrusion and the inner walls of the two sides of the positioning groove have the mutual guiding effect, so that the positioning protrusion can enter the positioning groove more smoothly, and the risk of being stuck is reduced.

[0034] The second main application purpose of the application is achieved through the following technical scheme:

[0035] A human body sensor, characterized in that it comprises the sensing module according to any one of the preceding technical schemes, and further comprises: a head shell for mounting the sensing module;

[0036] A main body shell rotatably connected to the head shell, the head shell and the main body shell being capable of relative rotation about a first axis;

[0037] A main body base rotatably connected to the main body shell, the main body shell and the main body base being capable of relative rotation about a second axis, the first axis and the second axis having an included angle.

[0038] By adopting the technical scheme, the sensing module can scan positions in multiple directions according to system control through rotation in each of the up, down, left and right directions corresponding to the first axis and the second axis.

[0039] A human body sensing and detecting system, characterized in that it comprises the sensing module according to any one of the preceding technical schemes, and further comprises:

[0040] A switching trigger module for judging whether a state switching condition is met and outputting state switching information according to the judgment result;

[0041] An adjustment control module for generating switching driving information based on the state switching information and sending the switching driving information to the driving assembly, so that the driving assembly drives the blocking assembly to move according to the switching driving information.

[0042] By adopting the technical scheme, in the large visual angle mode, the effective detection range of the induction module is large due to the opening state of the blocking assembly, the range and efficiency of human body induction can be improved, and the induction detection of the moving human body is applicable. When the induction module needs to detect the static human body, the induction module needs to move (rotate in up, down, left and right directions) to detect the static human body. However, if the induction detection is performed in the large visual angle mode, the movement of the induction module will be misjudged due to the large effective detection range of the induction module and the temperature difference of the environment in the detection range, for example, the detection angle of the Fresnel lens is 120°, in this range, the environmental temperature of the left region is different from that of the right region, and there is a temperature difference. When the induction module rotates, the change of the temperature is detected, and the output is misjudged, and it is mistaken that the human body exists. Therefore, when the induction detection of the static human body is performed, the small visual angle mode needs to be switched to, the effective detection range of the induction module is reduced, and the accuracy of the static human body induction is improved.

[0043] In summary, the present application has the following beneficial effects:

[0044] 1. The blocking assembly can be moved in the shell, and the driving assembly drives the blocking assembly to move. When the probe needs to use a large effective detection range for detection, the probe can be adjusted to the first induction area to increase the scanning visual angle range. When the probe needs to use a small effective detection range for detection, the probe can be adjusted to the second induction area to reduce the scanning visual angle range.

[0045] 2. The induction module can scan the positions in multiple directions according to the system control by rotating in the up, down, left and right directions corresponding to the first axis and the second axis.

[0046] 3. In the large visual angle mode, the effective detection range of the induction module is large due to the opening state of the blocking assembly, the range and efficiency of human body induction can be improved, and the induction detection of the moving human body is applicable. When the induction module needs to detect the static human body, the induction module needs to move (rotate in up, down, left and right directions) to detect the static human body. However, if the induction detection is performed in the large visual angle mode, the movement of the induction module will be misjudged due to the large effective detection range of the induction module and the temperature difference of the environment in the detection range, for example, the detection angle of the Fresnel lens is 120°, in this range, the environmental temperature of the left region is different from that of the right region, and there is a temperature difference. When the induction module rotates, the change of the temperature is detected, and the output is misjudged, and it is mistaken that the human body exists. Therefore, when the induction detection of the static human body is performed, the small visual angle mode needs to be switched to, the effective detection range of the induction module is reduced, and the accuracy of the static human body induction is improved. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 is a front view of the induction module of the first embodiment of the present application, wherein the induction module is in an open state.

[0048] Figure 2 is a schematic view of the state switching of the induction module, wherein, Figure 2 the induction module in A is in an open state, Figure 2 the induction module in B is in a closed state.

[0049] Figure 3 is an exploded view of the induction module in Figure 1

[0050] Figure 4 is a sectional view of the induction module in an open state.

[0051] Figure 5 is a sectional view of the induction module in a closed state.

[0052] Figure 6 is a schematic view of the blocking assembly in a closed state.

[0053] Figure 7 is an exploded view of the blocking assembly in Figure 6

[0054] Figure 8 is an assembly schematic view of the top cover, the probe, the circuit board and the mounting rack.

[0055] Figure 9 is an assembly schematic view of the mounting block and the mounting rack.

[0056] Figure 10 is an assembly schematic view of the top cover, the circuit board and the mounting rack.

[0057] Figure 11 is a state switching schematic view of the induction module of the second embodiment of the present application.

[0058] Figure 12 is a front view of the human body sensor of the embodiment of the present application, wherein the induction module is in a closed state.

[0059] Figure 13 is a flow schematic view of the human body induction detection method of the embodiment of the present application.

[0060] Figure 14 is a module schematic view of the human body induction detection system of the embodiment of the present application.

[0061] Explanation of reference signs:

[0062] 1, housing; 11, mounting rack; 12, top cover; 121, connecting ring; 1211, arc-shaped concave surface; 122, induction port; 123, slide hole; 124, connecting column; 1243, accommodation slot; 125, positioning block;

[0063] 2, probe; 21, induction element; 22, light lens; 221, buckle member;

[0064] ​​3, blocking assembly; 31, blocking piece; 311, detection window; 312, detection groove; 313, inner extension; 314, positioning protrusion; 315, positioning groove; 32, support shaft; 321, driving shaft; 3211, driving gear part; 322, driven shaft; 3221, driven gear part; 33, connecting piece; 331, driving gear part; 332, positioning part; 35, fixing hoop; 351, blocking block; 352, connecting strip; 36, magnetic piece;

[0065] 4, driving assembly; 41, first motor; 42, main gear;

[0066] 5, bottom plate; 51, support table; 511, first limiting groove; 52, mounting block; 521, second limiting groove; 53, side plate; 54, mounting screw; 522, clamping port; 56, mounting part; 561, clamping block; 562, connecting pipe; 57, cover block; 571, hanging ring; 58, positioning groove; 59, accommodation hole;

[0067] 6, support plate; 61, rotating hole; 62, mounting groove; 63, mounting clamping port; 64, connecting block; 65, fixing piece;

[0068] 7, circuit board; 71, connecting part;

[0069] 8, head shell; 81, second motor; 82, mounting port; 9, main body shell; 91, third motor; 92, accommodating groove; 10, main body base. DETAILED DESCRIPTION

[0070] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, other embodiments obtained by those skilled in the art based on the inventive concept of the present application are within the scope of protection of the present application.

[0071] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0072] In order to more conveniently understand the technical solutions of the present application, the inductive module, the human body inductor and the human body inductive detection system of the present application will be described in further detail below, but this does not limit the protection scope of the present application.

[0073] In addition, the term "and / or" in this document is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this document generally represents an "or" relationship between the front and rear associated objects unless otherwise specified.

[0074] The following will be described in conjunction with the drawings Figures 1-8 The embodiments of the present application are further described in detail.

[0075] The present application provides an induction module.

[0076] Embodiment one:

[0077] Referring to Figure 1 and Figure 2 , the induction module includes a shell 1, a probe 2, a blocking assembly 3 and a driving assembly 4, wherein the shell 1 can provide support for the probe 2, the blocking assembly 3 and the driving assembly 4; the probe 2 is used to collect signals in the environment within the effective detection range; the blocking assembly 3 includes an open state and a closed state, and the blocking assembly 3 can switch states by moving itself and adjust the effective detection range of the probe 2, and the driving assembly 4 provides a power source for the movement of the blocking assembly 3.

[0078] Referring to Figure 2 , the shell 1 includes a mounting bracket 11 and a top cover 12, the mounting bracket 11 and the top cover 12 are distributed in an up-down direction as shown in the figure, and the two are fixedly installed by a fixing piece 65. The mounting bracket 11 includes a bottom plate 5 and a plurality of support plates 6 arranged on the bottom plate 5, each support plate 6 is arranged in pairs, and a space for accommodating the blocking assembly 3 is left between the corresponding two support plates 6. The top cover 12 has an inner side and an outer side, wherein the inner side of the top cover 12 refers to the side of the top cover 12 facing the mounting bracket 11, and the outer side of the top cover 12 refers to the side of the top cover 12 away from the mounting bracket 11. The inner side of the top cover 12 is provided with a connecting ring 121, and the inside of the connecting ring 121 forms an induction port 122, and the probe 2 can be exposed to the top cover 12 through the induction port 122.

[0079] Referring to Figure 1 , the probe 2 is fixedly arranged between the top cover 12 and the mounting bracket 11. The position of the connecting ring 121 corresponds to the position of the probe 2, and in the assembled state of the probe 2, the top cover 12 and the mounting bracket 11, the probe 2 can be exposed to the outer side of the top cover 12 through the induction port 122, and the detection end of the induction element 21 faces the induction port 122. Specifically, the probe 2 in this embodiment adopts pyroelectric infrared sensing technology, which can receive infrared signals from the environment.

[0080] Referring to Figure 1In the embodiment, the detection range of the probe 2 has two kinds: a preset detection range and an effective detection range. The preset detection range refers to the range of signals in the environment that the probe 2 itself can receive in an ideal state. The preset detection range is a preset value and is set when the probe 2 is shipped as a product and does not change spontaneously in the working state.

[0081] With reference to Figure 3 , the effective detection range refers to the range of signals in the environment that the probe 2 itself can receive in the actual working state. In the working state, since the signals in the environment first enter the induction port 122 from the front of the induction port 122, pass through the induction port 122, and are then received by the probe 2, the size of the effective detection range is related to the ability of the induction port 122 to pass signals, that is, related to the degree of blocking of the induction port 122. With reference to Figure 2 A, if the induction port 122 is not blocked, the effective detection range of the probe 2 is the preset detection range of the probe 2. With reference to Figure 2 B, if the induction port 122 is blocked and part of the signals in the environment cannot normally pass through the induction port 122, the effective detection range of the probe 2 is smaller than the preset detection range of the probe 2.

[0082] With reference to Figure 4 , the blocking assembly 3 includes a blocking piece 31, a support shaft 32, and a connecting piece 33. The blocking piece 31 is movable, and when the blocking piece 31 moves to different positions in front of the induction port 122, the blocking piece 31 blocks the induction port 122 to different degrees. The support shaft 32 is rotatably connected between a pair of support plates 6, and the two ends of the connecting piece 33 are fixedly connected to the blocking piece 31 and the support shaft 32. When the support shaft 32 rotates, the support shaft 32 drives the connecting piece 33 to swing, and the connecting piece 33 drives the blocking piece 31 to make a circular motion around the support shaft 32.

[0083] With reference to Figure 4 , the maximum distance between the blocking piece 31 and the support shaft 32 is greater than the maximum distance between the probe 2 and the support shaft 32, so as to reduce the risk of collision between the blocking piece 31 and the probe 2 during movement. The outer side of the top cover 12 is provided with a sliding hole 123, which is a through hole structure. The position and shape of the sliding hole 123 correspond to the movement path and cross-sectional shape of the blocking piece 31, respectively, so that the blocking piece 31 can pass through the top cover 12 through the sliding hole 123 when moving.

[0084] With reference to Figure 5 , Specifically, the blocking piece 31 is provided with a detection window 311 which penetrates the blocking piece 31. The specific position of the detection window 311 is related to the reference center line A of the probe 2, wherein the reference center line A refers to a straight line pointing to the detection direction of the probe 2 and passing through the center point of the probe 2.

[0085] With reference to Figure 4 and Figure 5 In the present embodiment, the shutter 31 has at least two states: an open state and a closed state. In the open state, the shutter 31 has the smallest shielding area for the sensing port 122, or the shutter 31 does not shield the sensing port 122, at which time the signals in the environment can freely pass through the sensing port 122, and the effective detection range of the probe 2 reaches the maximum. Specifically, the shutter 31 can also be accommodated in the sliding hole 123. In the closed state, the shutter 31 covers and shields the sensing port 122, and the detection window 311 and the probe 2 pass through the reference center line A, at which time the signals in the environment can only pass through the detection window 311 through the sensing port 122, and the effective detection range of the probe 2 reaches the minimum. Corresponding to whether the sensing port 122 is shielded, the probe 2 has a first sensing area and a second sensing area. When the shutter 31 is in the open state, the sensing port 122 is not shielded by the shutter 31, and the first sensing area of the probe 2 corresponds to the area provided by the sensing port 122. When the shutter 31 is in the closed state, the sensing port 122 is shielded by the shutter 31, and the first sensing area of the probe 2 corresponds to the area provided by the detection window 311.

[0086] With reference to Figure 3 In the present embodiment, the connecting piece 33 is provided with a positioning portion 332 at one end away from the reference center line A and close to the support shaft 32, and the bottom plate 5 is provided with a positioning groove 58 corresponding to the positioning portion 332. When the shutter 31 is in the closed state, the positioning portion 332 is accommodated in the positioning groove 58 and abuts against the bottom plate 5, so as to limit the connecting piece 33 from continuing to swing, thereby limiting the maximum activity range of the shutter 31.

[0087] With reference to Figure 3 The driving assembly 4 is installed on the mounting frame 11, and the driving assembly 4 is in transmission connection with the support shaft 32. The driving assembly 4 is an electric control device, and the driving assembly 4 can drive the support shaft 32 to rotate based on the control signal received thereby. The rotation includes rotations in different directions. Specifically, for one support shaft 32, the forward rotation of the support shaft 32 in a certain direction can drive the shutter 31 to switch from the open state to the closed state, and the corresponding reverse rotation can drive the shutter 31 to switch from the closed state to the open state, so that the shutter 31 has the functions of reciprocating motion and switching different states.

[0088] The implementation principle of the sensing module of the embodiment is that: the baffle 31 is arranged to be movable on the top cover 12, the baffle 31 can adjust the shielding area of the sensing port 122 by moving to different positions, so as to adjust the effective detection range of the probe 2. When the probe 2 needs to use a larger effective detection range for detection, the baffle 31 can be switched to an open state or kept in the open state, so that the signals in the environment can be received by the probe 2 through the sensing port 122, so as to achieve the purpose of increasing the scanning visual angle range; when the probe 2 needs to use a larger effective detection range for detection, the baffle 31 can be switched to a closed state or kept in the closed state, so that the signals in the environment can only enter the sensing port 122 through the detection window 311 and then be received by the probe 2, so as to achieve the purpose of reducing the scanning visual angle range.

[0089] It is worth noting that the probe 2 needs to use a larger / smaller effective detection range for detection in the above, this requirement is related to the detection range, but has less relevance to the total area of the environment, that is, in the same area of the environment, the probe 2 needs to use a larger effective detection range for detection, and also may need to use a larger effective detection range for detection. For example, the probe 2 in the embodiment needs to receive the infrared signal radiated in the environment, the system obtains the temperature difference of individual positions or individual objects in the environment by analyzing the infrared signal, so as to detect whether a target detection object (such as a human body) appears in the environment, based on the above detection principle, the specific application scenario in which the probe 2 needs to use a larger effective detection range for detection is that: in the whole environment, the overall temperature is relatively balanced, and the temperature difference corresponding to different positions is small, at this time, using a larger effective detection range can improve the detection efficiency, and the specific application scenario in which the probe 2 needs to use a smaller effective detection range for detection is that: in the whole environment, the overall temperature is relatively unbalanced, and the temperature difference corresponding to different positions is large, such as the temperature difference between the left area and the right area is large, which may be mistaken as a target detection object in the process of detection and analysis, at this time, using a smaller effective detection range can improve the detection accuracy and reduce the risk of system misjudgment.

[0090] Referring to Figure 5 and Figure 6, a non-limiting specific description of the specific structure of the blocking assembly 3, in a preferred example, the number of blocking pieces 31 is at least two, preferably, the number of blocking pieces 31 is two, and the two blocking pieces 31 are symmetrically arranged in a plane passing through the reference center line A and parallel to the support shaft 32. Both blocking pieces 31 are close to one side of the reference center line A, that is, the side where the two blocking pieces 31 are oppositely arranged, and are provided with detection grooves 312. The detection grooves 312 are located in the middle of the side edge of the blocking piece 31, and the openings of the two detection grooves 312 are oppositely arranged. Each blocking piece 31 is correspondingly provided with a support shaft 32, and the two ends of the blocking piece 31 and the two ends of the support shaft 32 are respectively connected and fixed by two connecting pieces 33. A reserved space is formed between the blocking piece 31, the support shaft 32 and the two connecting pieces 33. Specifically, when each blocking piece 31 is in a closed state, the probe 2 is accommodated in the reserved space, and the two blocking pieces 31 cooperate with each other, and the detection grooves 312 on the two blocking pieces 31 combine to form a complete detection window 311; when each blocking piece 31 is switched from the closed state to the open state, each blocking piece 31 moves away from the reference center line A, and the movements of the two blocking pieces 31 are opposite and gradually deep into the slide hole 123; when each blocking piece 31 is in an open state, each blocking piece 31 does not shield the sensing port 122.

[0091] Referring to Figure 5 and Figure 6 , a non-limiting specific description of the shape of the blocking piece 31, in a preferred example, the blocking piece 31 is a part of a sphere as a whole, and the surface of the blocking piece 31 has a continuous arc-shaped curved surface, and the position of the arc center corresponds to the position of the support shaft 32, so that the overall shape of the blocking piece 31 can match its circular motion track, reduce the space required for the movement of the blocking piece 31 inside the device, improve the space utilization, and the overall structure is more compact. Preferably, the side of the blocking piece 31 away from the reference center line A is provided with an inner extension 313, when the blocking piece 31 is in a closed state, the blocking piece 31 is exposed to the sensing port 122 as a whole, but the inner extension 313 still penetrates and stays in the slide hole 123, so as to reduce the risk of foreign matter entering the inside of the shell 1 through the slide hole 123.

[0092] Referring to Figure 6 and Figure 7, a non-limiting specific description of the cooperation between the two flaps 31, in a preferred example, the flaps 31 are provided with a detection groove 312, one side of which is provided with a positioning protrusion 314 and / or a positioning groove 315, the shapes and positions of the positioning protrusion 314 and the positioning groove 315 correspond to each other, when the two flaps 31 are in the closed state, each positioning protrusion 314 on one of the flaps 31 can be clamped and matched with each positioning groove 315 on the other flap 31, the clamping and matching has a limiting effect on the two flaps 31, limiting the relative movement of the two flaps 31 after being folded, reducing looseness, and enabling the two detection grooves 312 to be aligned, so that the detection window 311 maintains a relatively complete shape. Preferably, the two sides of the positioning protrusion 314 gradually narrow away from the flap 31, and the two sides of the positioning groove 315 also correspondingly gradually expand away from the flap 31, during the gradual approach of the two flaps 31, the two sides of the positioning protrusion 314 and the inner walls of the two sides of the positioning groove 315 have a mutual guiding effect, enabling the positioning protrusion 314 to more smoothly enter the positioning groove 315, reducing the risk of jamming.

[0093] Referring to Figure 6 Further, at least one positioning protrusion 314 or positioning groove 315 is provided on each side of the detection groove 312. In this embodiment, each flap 31 is provided with one positioning protrusion 314 and one positioning groove 315, on one of the flaps 31, the positioning protrusion 314 and the positioning groove 315 are located on the two sides of the detection groove 312, respectively, one on the left and one on the right, on the other flap 31, the positioning protrusion 314 and the positioning groove 315 are located on the two sides of the detection groove 312, respectively, one on the right and one on the left. In a feasible example, one of the flaps 31 can be provided with two positioning protrusions 314 distributed on the two sides of the detection groove 312, and the other flap 31 can be correspondingly provided with two positioning grooves 315 distributed on the two sides of the detection groove 312.

[0094] Referring to Figure 5 and Figure 6 , a non-limiting specific description of the structure design for improving the cooperation stability between the flaps 31, in a preferred example, each connecting piece 33 is fixedly provided with a magnetic member 36. When the flaps 31 are in the closed state, adjacent magnetic members 36 attract each other, and drive the flaps 31 through the attraction force, so that the flaps 31 can be more stably maintained in the closed state, to improve the integrity of the detection window 311. On the other hand, due to the limitation of the stroke range of the driving assembly 4, or the influence of the transmission efficiency between the driving assembly 4 and the support shaft 32, there may be a gap after the two flaps 31 are switched to the closed state, the flaps 31 can be driven by the attraction force between the two magnetic members 36, so that the flaps 31 abut against each other, to improve the stability of the detection window 311.

[0095] With reference to Figure 6 , as a non-limiting specific description of the material and shape of the magnetic member 36, in a preferred example, the magnetic member 36 is selected as a permanent magnet, and the magnetic member 36 is in a cylindrical shape, and the axis of the magnetic member 36 is perpendicular to the axis of the support shaft 32. When each baffle 31 is in the closed state, the axes of the two magnetic members 36 coincide, and at this time, the two ends of the two magnetic members 36 with opposite polarities face each other, generating the maximum attractive force. In this embodiment, the magnetic member 36 moves synchronously with the connecting member 33, and the motion trajectory of the magnetic member 36 is an arc trajectory.

[0096] With reference to Figure 7 , it is worth noting that the two magnetic members 36 do not always maintain a significant attractive force, and during the reverse movement of the two baffles 31 away from each other, the distance between the two magnetic members 36 gradually increases, and the two magnetic members 36 gradually move away from the state of facing each other, and when the angle between the two connecting members 33 is greater than a predetermined threshold, the two magnetic members 36 do not generate a significant attractive force (i.e., an attractive force sufficient to drive the two baffles 31 to move in a free state). Correspondingly, during the reverse movement of the two baffles 31 towards each other, the distance between the two magnetic members 36 gradually decreases, and the two magnetic members 36 gradually return to the state of facing each other, and when the angle between the two connecting members 33 is less than or equal to the predetermined threshold, the two magnetic members 36 generate a significant attractive force, pushing the two baffles 31 towards each other. Further, the magnetic member 36 is arranged at the end of the connecting member 33 close to the support shaft 32, that is, the distance between the magnetic member 36 and the baffle 31 is greater than the distance between the magnetic member 36 and the support shaft 32, reducing the radius of the arc motion trajectory of the magnetic member 36, so that the two magnetic members 36 are more easily in the state of facing each other during the movement of approaching each other, and the attractive force is generated in time.

[0097] With reference to Figure 6 and Figure 7 , as a non-limiting specific description of the mounting structure between the connecting member 33 and the magnetic member 36, in a preferred example, the connecting member 33 is provided with a fixing hoop 35, the fixing hoop 35 cooperates with the connecting member 33 to form a ring structure, the magnetic member 36 is inserted into the fixing hoop 35, and the inner wall of the fixing hoop 35 abuts against the circumferential side of the magnetic member 36 to fix the magnetic member 36 by friction. The end of the fixing hoop 35 close to the reference center line A forms a fixed end, and the fixed end is fixedly provided with a blocking block 351 arranged along the radial direction of the magnetic member 36 to shield the opening of the fixed end and prevent the magnetic member 36 from completely separating from the fixed end. In the closed state, the fixed ends of the two adjacent fixing hoops 35 face each other, and the two magnetic members 36 attract each other, and under the action of the attractive force, the magnetic member 36 abuts against the blocking block 351.

[0098] Referring to Figure 7 Preferably, the number of the blocking blocks 351 is at least two, and each of the blocking blocks 351 is circumferentially spaced around the fixed end. In the embodiment, the number of the blocking blocks 351 is preferably two. Further, the blocking blocks 351 are spaced from the fixed hoop 35 so that one end of the magnetic member 36 is exposed outside the fixed end, and the adjacent two blocking blocks 351 are spaced in the radial direction of the magnetic member 36 to reduce the blocking of the magnetic field of the magnetic member 36 by each of the blocking blocks 351. Specifically, each of the fixed hoop 35 and the blocking blocks 351 is connected by a connecting strip 352, each of the connecting strips 352 extends in the axial direction of the magnetic member 36, and each of the connecting strips 352 abuts against the side wall of the magnetic member 36.

[0099] Referring to Figure 7 The end of the fixed hoop 35 away from the fixed end forms a mounting end, unlike the fixed end, the opening of the mounting end is not shielded. When assembling the connecting member 33 and the magnetic member 36, the assembler can insert one end of the magnetic member 36 into the fixed hoop 35 from the mounting end and push the magnetic member 36 so that the magnetic member 36 abuts against the blocking blocks 351. Preferably, the opening of the mounting end has a chamfered surface to guide the process of inserting the magnetic member 36 into the inside of the fixed hoop 35.

[0100] Referring to Figure 7 With regard to the rotational driving of a single support shaft 32, in a preferred example, the driving assembly 4 includes a first motor 41 fixed to the bottom plate 5 away from the top cover 12. The driving shaft of the first motor 41 is coaxially provided with a main gear 42, and the support shaft 32 is coaxially connected with a driving gear part 331. The bottom plate 5 is provided with a clearance hole 59, and the driving gear part 331 is arranged in the clearance hole 59 and engaged with the driving gear part 331. The first motor 41 drives the main gear 42 to rotate through a driving rod, the main gear 42 drives the driving gear part 331 to rotate, and in turn drives the support shaft 32 to rotate.

[0101] Referring to Figure 6 and Figure 7 Considering the moving stroke of the baffle 31, the support shaft 32 does not need to rotate by a large angle (such as 180°), in the embodiment, the driving gear part 331 is specifically an arc-shaped block fixed to the connecting member 33, the central angle of the arc-shaped block is greater than the maximum rotation angle of the support shaft 32, and the outer edge of the driving gear part 331 is formed with teeth for engagement with the main gear 42.

[0102] Referring to Figure 6 and Figure 7, a non-limiting specific description about the rotational driving of the plurality of support shafts 32, in a preferred example, two support shafts 32 are divided into a driving shaft 321 and a driven shaft 322, wherein the driving shaft 321 is formed with a driving gear portion 3211 along the circumferential side thereof, the driven shaft 322 is formed with a driven gear portion 3221 engaging with the driving gear portion 3211 along the circumferential side thereof, when the driving shaft 321 rotates, the driving gear portion 3211 and the driven gear portion 3221 engage to drive, so that the driven shaft 322 and the driving shaft 321 rotate synchronously. Preferably, the number of the first motor 41 is consistent with the number of the driving shaft 321, in this embodiment, the number of the first motor 41 is 1, the number of the driving gear portion 331 is also 1, and the driving gear portion 331 is fixed to the connecting piece 33 corresponding to the driving shaft 321. With the driving design of the driving shaft and the driven shaft 322, the driving assembly 4 only needs to drive the driving shaft 321 to rotate, which can drive the plurality of support shafts 32 to rotate simultaneously, on the one hand, it can save the number of driving sources and simplify the overall structure, on the other hand, it can enhance the synchronism of the movement of each baffle 31 and improve the stability of the state switching of the baffle 31.

[0103] With reference to Figure 7 In this embodiment, in order to improve the space utilization and make the overall structure of the device more compact, each support shaft 32 is only provided with one driving gear portion 3211 or driven gear portion 3221, and each support shaft 32 is only provided with one magnetic member 36, the driving gear portion 3211 or the driven gear portion 3221 is located at one end of the support shaft 32, and the magnetic member 36 is fixed to the other end of the support shaft 32.

[0104] With reference to Figure 7 And Figure 8 , a non-limiting specific description about the mounting structure of the support shaft 32 and the support plate 6, in a preferred example, the bottom plate 5 is rectangular as a whole, and the number of the support plate 6 is two; the two support plates 6 are arranged on the two sides of the bottom plate 5 and are distributed along the length direction of the side edge of the bottom plate 5, and the opening formed between the bottom plate 5 and the two support plates 6 faces the top cover 12. Each support shaft 32 is arranged between the two support plates 6, and the side of the two support plates 6 opposite to each other is provided with a rotating hole 61 corresponding to the end of each support shaft 32, the inner diameter of the rotating hole 61 matches the diameter of the end of the support shaft 32, and the two ends of the support shaft 32 are respectively inserted into the corresponding rotating hole 61 and are rotationally connected between the support shaft 32 and the support plate 6. Preferably, the rotating hole 61 is a blind hole, the distance between the hole bottoms of the two rotating holes 61 is adapted to the length of the support shaft 32, and the two support plates 6 limit the displacement of the support shaft 32 in the axial direction.

[0105] With reference to Figure 7 And Figure 8The side of the support plate 6 away from the bottom plate 5 is also provided with a plurality of mounting grooves 62 corresponding to the rotating holes 61, and each mounting groove 62 is connected to the corresponding rotating hole 61. The connection between the mounting groove 62 and the rotating hole 61 forms a mounting bayonet 63, and the width of the mounting bayonet 63 is smaller than the inner diameter of the rotating hole 61. The two side walls of the mounting groove 62 gradually widen away from the mounting bayonet 63, and the width of the slot at the end of the mounting groove 62 away from the mounting bayonet 63 is greater than the inner diameter of the rotating hole 61. When the user installs the support shaft 32, the two ends of the support shaft 32 can be respectively placed in the corresponding slot of the mounting groove 62. Since the width of the slot of the mounting groove 62 is greater than the diameter of the end of the support shaft 32, the two ends of the support shaft 32 can easily enter the corresponding mounting groove 62. Then, the user can apply force to the support shaft 32, so that the support shaft 32 gradually approaches the mounting bayonet 63, and the end of the mounting shaft is clamped into the mounting bayonet 63 to enter the inside of the rotating hole 61 through interference fit. Since the width of the mounting bayonet 63 is smaller than the diameter of the end of the support shaft 32, the support shaft 32 is not easy to separate from the rotating hole 61 after entering the rotating hole 61, thereby realizing the relative fixation between the support shaft 32 and the support plate 6.

[0106] With reference to Figure 7 and Figure 9 , a non-limiting specific description of the mounting structure of the support shaft 32 and the bottom plate 5, in a preferred example, the middle of the bottom plate 5 is provided with a support table 51 and a mounting block 52, which cooperate to limit the support shaft 32. Among them, the support table 51 is composed of two mutually parallel support plates, and the support table 51 is fixedly arranged on the surface of the bottom plate 5. The side of the support table 51 away from the bottom plate 5 is provided with a first limiting groove 511 for accommodating each support shaft 32, and the side of the mounting block 52 close to the support table 51 is provided with a second limiting groove 521 for accommodating each support shaft 32. When the mounting block 52 and the support table 51 are cooperatively mounted, the slots of the first limiting groove 511 and the second limiting groove 521 are opposite, and a limiting space for accommodating the support shaft 32 is formed between the first limiting groove 511 and the second limiting groove 521. Preferably, the first limiting groove 511 and the second limiting groove 521 are both semicircular, the limiting space is overall circular and the center of the circle passes through the axis of the rotating hole 61, and the inner diameter of this limiting space matches the diameter of the support shaft 32, so that the support shaft 32 is limited between the first limiting groove 511 and the second limiting groove 521, and can also rotate between the support table 51 and the mounting block 52.

[0107] With reference to Figure 7 and Figure 9, about the mounting structure of the support table 51 and the mounting block 52, in a preferred example, the support table 51 and the mounting block 52 are detachably connected. Specifically, the bottom plate 5 is further provided with a side plate 53 adjacent to the two sides of the two support plates 6, and the mounting block 52 is provided with a mounting screw 54 at both ends, and the mounting screw 54 is threaded through the mounting block 52 and is screwed with the side plate 53. In this embodiment, the support table 51 and the mounting block 52 are preferably detachably connected by bolting, and in another feasible embodiment, the support table 51 and the mounting block 52 can also be detachably connected by clamping. Further, the support table 51 is provided with a clamping hole 522 at both ends, and the two side plates 53 are respectively accommodated in the two clamping holes 522. The two clamping holes 522 have a positioning effect on the mounting block 52, which facilitates the user to screw the mounting screw 54. When the user installs the support shaft 32, after clamping each support shaft 32 into the corresponding rotating hole 61, each support shaft 32 is accommodated in the corresponding first limiting groove 511, and then the user can fix the mounting block 52 on the support table 51, so that each support shaft 32 is limited between the support table 51 and the mounting block 52, and the support table 51 and the mounting block 52 can prevent the support shaft 32 from moving away from the mounting clamping hole 63, so that the fixation between the support shaft 32 and the support plate 6 is more stable.

[0108] Referring to Figure 9 , specifically, the support table 51 is provided with a wedge surface at both ends, the wedge surface is located on the side of the support table 51 away from the bottom plate 5, and the wedge surface and the surface of the bottom plate 5 form an included angle, and the distance from the wedge surface to the bottom plate 5 gradually decreases away from the first limiting groove 511, so that the support table 51 as a whole presents a trapezoidal shape. The mounting block 52 is provided with an inclined portion matching the wedge surface, so that the mounting block 52 has a trapezoidal space matching the support table 51, and when the support table 51 and the mounting block 52 are aligned, the two inclined portions are respectively in contact with the two wedge surfaces, and each first limiting groove 511 cooperates with the corresponding second limiting groove 521 to form a complete limiting space. In this embodiment, when the user installs the mounting block 52 on the support table 51, the wedge surface and the inclined portion have a guiding effect, which makes the support table 51 and the mounting block 52 more easily move to the state of mutual alignment, and the clamping hole 522 has a positioning effect between the support table 51 and the mounting block 52, which facilitates the user to assemble.

[0109] Referring to Figure 3In a preferred example, the top cover 12 is in the shape of a disc as a whole, and the top cover 12 is fixedly provided with a plurality of connecting posts 124 for connecting the mounting frame 11. Preferably, the number of the connecting posts 124 is two, and the positions of the two connecting posts 124 correspond to the positions of the two support plates 6, and the space between the two connecting posts 124 is left for accommodating and moving the blocking piece 31 and the connecting piece 33. The support plate 6 is fixedly provided with a connecting block 64 for cooperating with the connecting post 124, and the connecting block 64 and the connecting post 124 are detachably connected through a fixing member 65. In the embodiment, the fixing member 65 is in the form of a bolt structure, and preferably is a fixing screw. One side of the connecting post 124 is provided with a threaded hole for connecting the fixing screw, and the fixing screw is threaded into the connecting block 64 and the connecting post 124. In other embodiments, the fixing member 65 can also be in the form of a clamping structure or a clenching structure. Specifically, the connecting post 124 is fixedly provided with a positioning block 125 on the side away from the top cover 12, and the connecting block 64 is provided with a through hole for inserting the positioning block 125. The positioning block 125 has a positioning effect on the connecting block 64 and the connecting post 124, and prevents the relative displacement between the connecting block 64 and the connecting post 124.

[0110] With reference to Figure 7 The length direction of the connecting post 124 is parallel to the axial direction of the top cover 12 and is perpendicular to the bottom plate 5. The top cover 12 and the bottom plate 5 need to be kept at a certain interval distance at all times to provide a certain accommodation space for the structure inside the shell 1, and the interval distance is provided by the cooperation between the connecting post 124 and the support plate 6. In fact, the width of the support plate 6 and the length direction of the connecting post 124 can compensate for each other. In other embodiments, in order to achieve the same interval distance as described above, if the width of the support plate 6 is shorter, the length of the connecting post 124 is lengthened, and if the width of the support plate 6 is shorter, the length of the connecting post 124 is reduced. The specific value of the interval distance can also be set according to the actual volume of the probe 2 and the blocking assembly 3.

[0111] With reference to Figure 7 and Figure 8, specifically, the two connecting columns 124 connected by the top cover 12 are divided into a first connecting column 124a and a second connecting column 124b, wherein one end of the first connecting column 124a close to the support shaft 32 is provided with a driving gear part 3211 or a driven gear part 3221, the width of the first connecting column 124a is greater than the width of the second connecting column 124b, and the number of fixing members 65 provided on the first connecting column 124a is greater than the number of fixing members 65 provided on the second connecting column 124b. Since the driving gear part 3211 and the driven gear part 3221 both need to work through meshing transmission, the connecting column 124 and the connecting block 64 close to this part are more prone to looseness than the other connecting column 124 and the connecting block 64 during work, therefore, by increasing the contact area between the two and improving the fixing strength provided by the fixing member 65, the risk of looseness between the top cover 12 and the mounting frame 11 can be targetedly reduced. In the embodiment, the first connecting column 124 is detachably connected to the corresponding connecting block 64 through two fixed screws arranged at intervals, and the second connecting column 124b is detachably connected to the corresponding connecting block 64 through one fixed screw.

[0112] With reference to Figure 8 , regarding the mounting structure of the probe 2, the top cover 12 and the mounting frame 11, in a preferred example, the circuit board 7 is arranged between the top cover 12 and the mounting frame 11, and the probe 2 is fixed on the circuit board 7. The two ends of the circuit board 7 are respectively fixedly provided with connecting parts 71, and each group of connecting blocks 64 and connecting columns 124 are left with spaces for the connecting parts 71 to be inserted, preferably, one side of the connecting column 124 away from the top cover 12 is concavely provided with a clearance groove 1243, and the two connecting parts 71 are respectively accommodated in the spaces provided by the two clearance grooves 1243.

[0113] With reference to Figure 8 , specifically, the two connecting parts 71 correspond to the first connecting column 124a and the second connecting column 124b respectively, wherein the width of the connecting part 71 corresponding to the first connecting column 124a is greater than the width of the connecting part 71 corresponding to the second connecting column 124b, so as to increase the contact area between the connecting part 71, the first connecting column 124a and the corresponding mounting block 52, and to be more stable. The positioning block 125 of the first connecting column 124a is arranged at the middle part of the clearance groove 1243, and the connecting part 71 corresponding to the first connecting column 124a is provided with a through hole for the positioning block 125 to be inserted and inserted, so that the connecting part 71 is fixed between the first connecting column 124a and the corresponding connecting block 64. The connecting part 71 corresponding to the second connecting column 124b is provided with a through hole for a fixed screw to pass through, the fixed screw is sequentially inserted into the connecting block 64, the connecting part 71 and is threadedly connected with the second connecting column 124b, so that the connecting part 71 is fixed between the second connecting column 124b and the corresponding connecting block 64.

[0114] With reference toFigure 8 In a preferred example, the probe 2 comprises an infrared sensor 21 and a light lens 22. The infrared sensor 21 is a pyroelectric infrared sensor, which can receive signals (i.e. infrared rays) in the environment in the working state. The light lens 22 is used to increase the signal receiving range (i.e. detection range) of the infrared sensor 21. The infrared sensor 21 is welded on the circuit board 7, and the light lens 22 is sleeved on the probe 2 and fixed on the circuit board 7. The light lens 22 is preferably a Fresnel lens. The light lens 22 is provided with a lens seat for cooperating with the circuit board 7. The lens seat is a rectangular frame body. Four side edges of the lens seat are fixedly provided with buckle members 221 capable of being clamped with the circuit board 7. The light lens 22 is clamped and fixed on the circuit board 7 through the lens seat, so that the light lens 22 can be fixed between the top cover 12 and the mounting frame 11.

[0115] With reference to Figure 10 Specifically, the connecting ring 121 is located in the middle of the top cover 12, and the light lens 22 is located in the middle of the circuit board 7. The position of the connecting ring 121 corresponds to the position of the light lens 22. An arc-shaped concave surface 1211 in a ring shape is concavely arranged on one end of the inner side of the connecting ring 121 and matched with the light lens 22. When the top cover 12, the mounting frame 11, the circuit board 7 and the light lens 22 are installed and fixed, the arc-shaped concave surface 1211 abuts against the outer surface of the light lens 22, so that the top cover 12 and the light lens 22 have an acting force therebetween, and the stability of the whole is enhanced.

[0116] With reference to Figure 9 and Figure 10, a non-limiting specific description of the mounting structure of the first motor 41, in a preferred example, the bottom plate 5 is provided with a mounting portion 56 capable of accommodating the first motor 41 and a cover block 57 for cooperating with the mounting portion 56 to fix the first motor 41. The mounting portion 56 and the cover block 57 are both arc-shaped, and the arc-shaped openings are oppositely arranged, forming an accommodation space matching the body of the first motor 41 between the mounting portion 56 and the cover block 57, the body of the first motor 41 is mounted in the accommodation space, and the mounting portion 56 and the cover block 57 cooperate to clamp the body of the first motor 41, so that the first motor 41 is fixed on the bottom plate 5. Preferably, the fixed connection between the mounting portion 56 and the cover block 57 is a detachable connection, so that the user can replace or maintain the first motor 41. Specifically, one side of the mounting portion 56 is fixedly provided with a clamping block 561, and the other side is fixedly provided with a connecting pipe 562, and the inner side of the connecting pipe 562 is provided with a thread; one side of the cover block 57 is fixedly provided with a hanging ring 571 which is clamped to the clamping block 561, and the other side is provided with a locking screw which is threaded through the cover block 57 and connected with the connecting pipe 562, realizing the mounting and fixing between the cover block 57 and the mounting portion 56. When installing the first motor 41, the first motor 41 can be placed between the mounting portion 56 and the cover block 57, and the clamping block 561 and the hanging ring 571 are clamped, and then the mounting portion 56 and the cover block 57 are fixed by the locking screw, and the mounting portion 56 and the cover block 57 cooperate to clamp the first motor 41.

[0117] Referring to Figure 3 , a non-limiting specific description of the manufacturing method of the induction module, in a preferred example, the top cover 12 is integrally formed by injection molding process, the mounting bracket 11 is integrally formed by injection molding process, and the blocking piece 31, the connecting piece 33 and the support shaft 32 are also integrally formed by injection molding process.

[0118] Embodiment two:

[0119] Referring to Figure 10 and Figure 11 , the difference between the embodiment of the present application and embodiment one is that the blocking assembly 3 includes a blocking piece 31, the blocking piece 31 is made of flexible material, the blocking piece 31 can be folded and deformed around the axis of the support shaft 32, and the middle part of the blocking piece 31 is provided with a detection window 311. Specifically, when the blocking piece 31 is in the open state, the blocking piece 31 is folded and stored in the shell 1; when the blocking piece 31 is in the closed state, the blocking piece 31 is fan-shaped and covers the entire induction port 122, and the detection window 311 is opposite to the induction port 122.

[0120] The embodiment of the present application also provides a human body sensor.

[0121] Referring to Figure 12The human body sensor comprises any one of the sensing modules, and further comprises a head shell 8, a main body shell 9 and a main body base 10. The head shell 8 is in a spherical shape as a whole, and is provided with a mounting opening 82 in which the sensing module is fixedly installed. The main body shell 9 is provided with a receiving groove 92 for accommodating the head shell 8, and the head shell 8 is connected to the receiving groove 92 as a rotating shaft. The rotating axis of the head shell 8 is defined as a first axis, and the head shell 8 and the main body shell 9 can relatively rotate around the first axis. In the illustrated direction, the first axis is parallel to the horizontal plane, and thus the rotation between the head shell 8 and the main body shell 9 is the rotation in the up-down direction.

[0122] With reference to Figure 12 The main body shell 9 is rotatably connected to the main body base 10. The rotating axis of the main body shell 9 is defined as a second axis, and the main body shell 9 and the main body base 10 can relatively rotate around the second axis. The first axis and the second axis have an included angle therebetween. In the illustrated direction, the second axis is perpendicular to the horizontal plane, and the included angle between the first axis and the second axis is 90°, and thus the rotation between the main body shell 9 and the main body base 10 is the rotation in the left-right direction.

[0123] With reference to Figure 12 Specifically, the human body sensor further comprises a second motor 81 for driving the head shell 8 to rotate and a third motor 91 for driving the main body shell 9 to rotate. The body of the second motor 81 is installed in the head shell 8, and the output shaft of the second motor 81 penetrates the head shell 8 and is fixed to the outside of the main body. Through the driving of the second motor 81, the sensing module can be driven to rotate in the up-down direction. The body of the third motor 91 is fixed to the main body base 10, and the output shaft of the third motor 91 is connected to the main body shell 9 through a transmission structure. Through the driving of the third motor 91, the sensing module can be driven to rotate in the left-right direction. Through the rotation in the up-down direction and the left-right direction, the sensing module can scan the positions in multiple directions according to the system control.

[0124] The human body sensor provided in the embodiment can achieve the same technical effects as the foregoing embodiments due to the inclusion of the modules of the foregoing sensing module, and the principle analysis can be referred to the related description of the foregoing sensing module, which will not be repeated here.

[0125] The embodiment of the present application further provides a human body sensing detection method.

[0126] With reference to Figure 13 and Figure 14 The human body sensing detection method comprises:

[0127] S1, judging whether a state switching condition is met, and outputting state switching information according to the judgment result.

[0128] The state switching condition is used to determine whether the current human body sensing system needs to switch the detection mode to meet different detection requirements. The detection mode includes a large angle mode and a small angle mode. When in the large angle mode, the blocking component 3 is in an open state, and when in the small angle mode, the blocking component 3 is in a closed state.

[0129] The satisfaction condition of the state switching condition includes whether the current time point is away from the time point of outputting the state switching information by a preset switching period. Specifically, the human body sensing system performs real-time timing, and every time the switching period is reached, the human body sensing system satisfies the state switching condition and switches the detection mode. For example, when the time in the large angle mode reaches the switching period, the detection mode is switched from the large angle mode to the small angle mode; and when the time in the small angle mode reaches the switching period, the detection mode is switched from the small angle mode to the large angle mode.

[0130] The satisfaction condition of the state switching condition includes whether the active control information from the terminal device is received. The terminal device can be a PC terminal or any intelligent electronic product that can meet the corresponding functional requirements, such as a smart phone, a tablet computer, etc. If it is a smart phone or a similar intelligent electronic product, the corresponding APP can be used to achieve the function. The terminal device communicates with the human body sensing system remotely, and the user can send the active control information to the human body sensing system through the terminal device.

[0131] S2, switching the detection mode based on the state switching information.

[0132] S21, generating switching driving information based on the state switching information, and sending the switching driving information to the driving component 4.

[0133] S22, the driving component 4 drives the blocking component 3 to move according to the switching driving information, so as to switch the detection mode.

[0134] Based on the switching driving information, the driving component 4 drives the blocking component 3 to move, so that the blocking component 3 is switched from the open state to the closed state, or the blocking component 3 is switched from the closed state to the open state.

[0135] S3, the sensing module performs human body sensing scanning based on the current detection mode.

[0136] The implementation principle of the human body sensing detection method provided in the embodiments of the present application is as follows: in the large visual angle mode, since the blocking component 3 is in the open state, the effective detection range of the sensing module is large, the range and efficiency of human body sensing can be improved, and the sensing detection of the moving human body is applicable. When the sensing module needs to detect the static human body, the sensing module needs to be actively moved (rotated in up, down, left and right directions) to detect the static human body. However, if the sensing detection is performed in the large visual angle mode, since the effective detection range of the sensing module is large, the movement of the sensing module can be misjudged due to the flowing air current on the surface and the temperature difference of the environment in the detection range. For example, the detection angle of the Fresnel lens is 120°, in this range, the environmental temperature of the left region can be different from that of the right region, and there is a temperature difference. When the sensing module is rotated, it is equivalent to detecting the change of the temperature, so that the sensing module can be misjudged and output, and it is mistaken that there is a human body. Therefore, when the sensing detection of the static human body is performed, the small visual angle mode needs to be switched to, the effective detection range of the sensing module is reduced, and the accuracy of the static human body sensing is improved.

[0137] The embodiments of the present application also provide a human body sensing detection system.

[0138] With reference to Figure 14 The human body sensing detection system comprises:

[0139] The switching trigger module 101 is configured to determine whether a state switching condition is met, and output state switching information to the adjustment control module 102 according to the determination result.

[0140] The adjustment control module 102 is configured to generate switching driving information based on the state switching information, and send the switching driving information to the driving component 4.

[0141] The driving component 4 is configured to drive the blocking component 3 to move according to the switching driving information, so as to switch the detection mode.

[0142] The sensing module is configured to perform human body sensing scanning based on the current detection mode.

[0143] The human body sensing detection system provided in the embodiments has the functions of the modules and the logical connections between the modules, can realize the steps of the human body sensing detection method provided in the foregoing embodiments, and can achieve the same technical effects as the foregoing embodiments. The principle analysis can be referred to the related description of the method steps, and will not be described here.

[0144] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, and therefore: any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A sensing module, characterized in that, The application relates to a shell (1) comprising a mounting rack (11) and a top cover (12) arranged in an up-down mode, a connecting ring (121) is arranged in the middle of the inner side of the top cover (12), an induction port (122) is formed in the inside of the connecting ring (121), a probe (2) is exposed to the top cover (12) through the induction port (122), and the induction port (122) is circular; The probe (2) is arranged in the shell (1), the shell (1) is provided with an induction port (122) for receiving signals of the probe (2), and the probe (2) has a first induction area and a second induction area; the first induction area of the probe (2) corresponds to the area provided by the circular induction port (122); when the baffle (31) is in a closed state, the induction port (122) is shielded by the baffle (31), and the second induction area of the probe (2) corresponds to the area provided by a rectangular detection window (311); A blocking assembly (3) is movably arranged in the shell (1) and can shield the induction port (122); the blocking assembly (3) comprises at least two baffles (31) for shielding the induction port (122), each baffle (31) is provided with a corresponding support shaft (32), each baffle (31) is rotatably connected to the shell (1) through the support shaft (32), both ends of a connecting piece (33) are connected to the baffle (31) and the support shaft (32), the support shaft (32) can drive the connecting piece (33) to swing through rotation, so as to drive the baffle (31) to move around the probe (2) at the induction port (122), the blocking assembly (3) can adjust the shielding area of the induction port (122) through movement, so that the probe (2) has a second induction area smaller than the first induction area, a driving gear part (331) of the blocking assembly (3) is fixed on the connecting piece (33) corresponding to a driving shaft (321), and two support shafts (32) are divided into a driving shaft (321) and a driven shaft (322); the driving shaft (321) is provided with a driving gear part (3211) along the circumferential side of the driving shaft (321), the driven shaft (322) is provided with a driven gear part (3221) engaged with the driving gear part (3211) along the circumferential side of the driven shaft (322), when the driving shaft (321) rotates, the driving gear part (3211) and the driven gear part (3221) are engaged and transmitted, so that the driven shaft (322) and the driving shaft (321) rotate synchronously; A driving assembly (4) is arranged in the shell (1) and connected to the blocking assembly (3), the driving assembly (4) is configured to drive the driving gear part (331) to rotate through a main gear (42), and then drive the driving shaft (321) to rotate, so that the support shaft (32) engaged and transmitted rotates synchronously, and the baffles (31) move synchronously to adjust the shielding area of the induction port (122). ​ The baffle (31) is provided with a detection groove (312) near one side adjacent to the baffle (31); when the two baffles (31) move to a closed state, the two baffles (31) can cover the induction port (122), and the two detection grooves (312) can form a rectangular detection window (311) with a rectangular opening for the probe (2) to receive signals, and signals in the environment can only pass through the detection window (311) through the induction port (122); when the baffle (31) is in an open state, the induction port (122) is not blocked by the baffle (31), and the first induction area of the probe (2) corresponds to the area provided by the induction port (122); Each of the connecting pieces (33) is provided with a magnetic piece (36), when each of the baffles (31) is in a closed state, adjacent magnetic pieces (36) attract each other to keep each of the baffles (31) in a closed state; the connecting piece (33) is provided with a fixed hoop (35), the fixed hoop (35) and the connecting piece (33) cooperate to form a ring structure, the magnetic piece (36) is inserted into the fixed hoop (35), and the inner wall of the fixed hoop (35) abuts against the circumferential side of the magnetic piece (36) to fix the magnetic piece (36) by friction; one end of the fixed hoop (35) near the reference center line forms a fixed end, the fixed end is fixedly provided with a blocking block (351), the blocking block (351) is arranged along the radial direction of the magnetic piece (36) to block the opening of the fixed end and prevent the magnetic piece (36) from completely separating from the fixed end; The detection window (311) penetrates the baffle (31) to provide the second induction area, when the baffle (31) is in a closed state, the detection window (311) and the probe (2) pass through a reference center line pointing to the detection direction of the probe (2).

2. The inductive module of claim 1, wherein: The baffle (31) is provided with a positioning protrusion (314) and a positioning groove (315) matched with the positioning protrusion (314); when each of the baffles (31) is in a closed state, the positioning protrusion (314) of any baffle (31) can be inserted into the positioning groove (315) adjacent to the baffle (31).

3. The induction module of claim 2, wherein: The two sides of the positioning protrusion (314) gradually narrow away from the baffle (31), and the shape of the positioning groove (315) matches the shape of the positioning protrusion (314).

4. A human sensor, characterized by The human body inductor comprises the induction module as claimed in any one of claims 1 to 3, and further comprises: A head shell (8) for mounting the induction module; A main body shell (9) rotationally connected to the head shell (8), the head shell (8) and the main body shell (9) can relatively rotate around a first axis; A main body base (10) rotationally connected to the main body shell (9), the main body shell (9) and the main body base (10) can relatively rotate around a second axis, and the first axis and the second axis have an included angle.

5. A human presence detection system, characterized by The human body sensing system further comprises: A state switching trigger module (101) is configured to determine whether a state switching condition is met, and output state switching information according to a determination result; An adjustment control module (102) is configured to generate switching driving information based on the state switching information, and send the switching driving information to the driving assembly (4), so that the driving assembly (4) drives the blocking assembly (3) to move according to the switching driving information.

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