CN115993662A

CN115993662A - Induction module, human body inductor and human body induction detection system

Info

Publication number: CN115993662A
Application number: CN202211698793.XA
Authority: CN
Inventors: 王远武; 万军平
Original assignee: Guangdong Haobote Technology Co ltd
Current assignee: Guangdong Haobote Technology Co ltd
Priority date: 2022-01-07
Filing date: 2022-12-28
Publication date: 2023-04-21
Also published as: CN218995702U; CN219265504U; CN114659643A; CN116256810A

Abstract

The application relates to the field of human body sensing equipment, in particular to a sensing module, a human body sensor and a human body sensing detection system, wherein the sensing module comprises a shell; the probe is arranged on the shell, and the shell is provided with an induction port for the probe to receive signals; the blocking component is movably arranged on the shell, can shade the induction port, and can adjust the shielding area of the induction port in a moving mode; the driving assembly is arranged on the shell and connected with the blocking assembly, and the driving assembly is used for driving the blocking assembly to move. The effective detection range of the probe can be changed by the movable design of the blocking assembly. The method and the device have the effect of being suitable for various application scenes.

Description

Induction module, human body inductor and human body induction detection system

Technical Field

The application relates to the field of human body sensing equipment, in particular to a sensing module, a human body sensor and a human body sensing detection system.

Background

The human body induction detection technology is particularly applied to the fields of security monitoring, energy-saving control and the like, and currently common human body induction detection equipment is a human body inductor with a built-in pyroelectric infrared sensor. The pyroelectric infrared sensor can receive infrared radiation energy from the environment, and as any object except a blackbody in nature radiates infrared rays outwards, and the wavelength of the infrared rays obeys the wien's law of displacement, the human body radiates infrared rays with specific wavelengths outwards, so that the pyroelectric infrared sensor is utilized to detect the infrared rays of the human body, the activity state of the human body can be obtained, and the existence of the human body is sensed in a preset range.

As in the field of energy saving control, a human body sensor may be provided in a corridor stair, a public corridor, etc. and connected in series with a lighting system, the human body sensor may monitor estrus at night, and as long as a person is present in a detection range, the human body sensor sends a signal to the lighting system to automatically illuminate for a preset time; the human body sensor is also arranged in public areas such as libraries, study rooms and the like, is connected with the lighting system or the air conditioning system in series, and can detect people 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. In the field of security monitoring, a human body sensor may be disposed at a hidden position and connected in series with an anti-theft alarm, the human body sensor detecting a person present in a detection range in real time, the anti-theft alarm performing an alarm task based on a detection result of the human body sensor.

In the above specific application, the detection range and the detection sensitivity of the pyroelectric infrared sensor both affect the working performance of the human body sensor, and in order to improve the detection range and the detection sensitivity, a fresnel lens is usually added at the detection end of the pyroelectric infrared sensor in the prior art, so that the fresnel lens can collect the infrared rays radiated by the human body on the sensitive element of the pyroelectric infrared sensor, thereby enlarging the detection range, and on the other hand, the fresnel lens can also periodically shield the incident infrared rays, so that the pyroelectric infrared sensor can output continuous signals relatively stably. However, the pyroelectric infrared sensor and the Fresnel lens are fixedly arranged (such as by bolt installation) and are not separated under normal conditions after the human body sensor product leaves the factory, so that the single detection range of the pyroelectric infrared sensor is fixed, and the single detection of the human body sensor is limited in the range and has larger limitation.

The utility model patent number CN212645913U discloses an infrared detection device and a display terminal provided with the infrared detection device, wherein the infrared detection device comprises a Fresnel lens and a digital pyroelectric infrared sensor; the Fresnel lens is used for focusing infrared rays and transmitting the infrared rays along a detection area divided by the lens unit; the digital pyroelectric infrared sensor is used for sensing the intensity change of infrared rays in a detection area and outputting an electric signal. The infrared detection device is used for rapidly sensing the intensity change of the infrared rays in the detection area by arranging the Fresnel lens, but is limited to a large-range single sensing detection provided by the Fresnel lens.

The utility model patent publication No. CN110213862A discloses an intelligent controller for existing human infrared detection, which comprises a Fresnel lens, a human infrared sensor and a processing module, when the human infrared sensor senses a human body in a detection range, the human infrared sensor sends a signal to the processing module, and the processing module sends a signal to a lighting lamp to enable the lighting lamp to light, but the intelligent controller is also limited to large-range single sensing detection provided by the Fresnel lens.

Disclosure of Invention

The invention aims to provide an induction module, which adjusts the range of single human body induction detection by adjusting the effective induction range of the induction module, thereby solving the problem of larger limitation of the detection range.

The invention aims to provide a human body sensor, which solves the problem of larger limitation of a detection range by arranging a sensing module with an effective sensing range adjustable function.

The invention aims to provide a human body induction detection system, which solves the problem of larger limitation of detection range by controlling an induction module to switch different effective induction ranges.

The main purpose of the invention is realized by the following technical scheme:

an induction module, comprising:

a housing;

the probe is arranged on the shell, the shell is provided with an induction port for the probe to receive signals, and the probe is provided with a first induction area;

the blocking component is movably arranged on the shell, can shade the induction port, and can adjust the shielding area of the induction port in a moving mode, so that the probe is provided with a second induction area which is smaller than the first induction area;

The driving assembly is arranged on the shell and connected with the blocking assembly, and the driving assembly is configured to drive the blocking assembly to move so as to enable the effective sensing range of the probe to be changed passively from the first sensing area to the second sensing area.

Through adopting above-mentioned technical scheme, utilize and block the subassembly movable in the design of casing, can move to the shielding area of different states through blocking the subassembly and remove the regulation induction port to make the probe have the first response area and the second response area of different area sizes, first response area and second response area have represented the different effective response scope of probe respectively. The driving component drives the blocking component 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 a first sensing area, so that the scanning visual angle range is enlarged; when the probe needs to use a smaller effective detection range for detection, the probe can be adjusted to the second sensing area, so that the scanning visual angle range is reduced.

Optionally, the blocking assembly includes:

the baffle is used for shielding the induction port;

the support shaft is rotatably connected with the shell;

the two ends of the connecting piece are respectively connected with the baffle plate and the supporting shaft; the supporting shaft can drive the connecting piece to swing in a rotating mode so as to drive the baffle to move around the probe at the induction port.

Through adopting above-mentioned technical scheme, the connecting piece sets up between back shaft and separation blade, and the back shaft drives the connecting piece swing through the rotation mode, and the connecting piece drives the separation blade through the swing mode and do circular motion around the back shaft to make the separation blade remove in induction port department.

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

Through adopting above-mentioned technical scheme, utilize the position design of detection window, when the separation blade was in the closed condition, the detection window just to the probe, and the separation blade carries out the partial shielding to the induction port, and the signal in the environment still accessible detection window gets into the induction port to provide the second response region for the probe.

Optionally, the number of the blocking pieces is at least two, and each blocking piece is configured with the corresponding supporting shaft.

Through adopting above-mentioned technical scheme, utilize a plurality of separation blades cooperation to shelter from the setting of response mouth, reduce the movable stroke of single separation blade, promote and block the efficiency that the subassembly takes place the state switching.

Optionally, the number of the blocking pieces is two, and a detection groove is formed in one side, close to the blocking piece, of the blocking piece; when the two baffle plates move to a closed state, the two baffle plates can cover the induction port, and the two detection grooves can form a detection window for receiving signals by the probe.

By adopting the technical scheme, each baffle plate is provided with a detection groove, and when each baffle plate is closed relatively, each detection groove on each baffle plate encloses into a detection window.

Optionally, each of the connecting members is provided with a magnetic member, and when each of the blocking pieces is in the closed state, adjacent magnetic members attract each other to keep each of the blocking pieces in the closed state.

Through adopting above-mentioned technical scheme, the mutual attraction between each magnetic part of adjacent, through the attraction make each separation blade comparatively stably keep in closed condition to improve the integrality of detection window. On the other hand, limited by the stroke range of the driving assembly, or influenced by the transmission efficiency between the driving assembly and the supporting shaft, a gap may exist after the two blocking pieces are switched to the closed state, and the blocking pieces can be pushed by attractive force between the two magnetic pieces, so that the blocking pieces are kept in mutual abutting connection, and the stability of the detection window is improved.

Optionally, the baffle is provided with a positioning bump and a positioning groove for matching with the positioning bump; when each baffle is in a closed state, the positioning lug of any baffle can be inserted into the positioning groove adjacent to the baffle.

Through adopting above-mentioned technical scheme, when two separation blades were in the closed condition, each positioning lug on one of them separation blade all could cooperate with each positioning groove joint on the another one separation blade, and this joint cooperation has spacing effect to two separation blades, and the restriction two separation blades reduce not hard up in the relative movement that takes place after folding to make two detection grooves can align, thereby make the detection window maintain comparatively complete shape.

Optionally, the two sides of the positioning protruding block gradually narrow towards the direction far away from the baffle plate, and the shape of the positioning groove is matched with the shape of the positioning protruding block.

Through adopting above-mentioned technical scheme, at the in-process that two separation blades are close gradually, have the effect of mutual direction between the both sides of location lug and the both sides inner wall of constant head tank, make the location lug get into in the constant head tank more smoothly, reduce the risk that takes place the card to die.

the human body inductor is characterized by comprising the induction module according to any one of the technical schemes, and further comprises: the head shell is used for installing the induction module;

the main body shell is rotationally connected with the head shell, and the head shell and the main body shell can rotate around a first axis relatively;

the main body base is rotationally connected to the main body shell, the main body shell and the main body base can rotate around a second axis relatively, and the first axis and the second axis form an included angle.

Through adopting above-mentioned technical scheme, utilize the rotation of each direction about corresponding to first axis and second axis, the response module can scan the position of a plurality of directions according to system control.

The human body induction detection system is characterized by comprising the induction module according to any one of the technical schemes, and further comprises:

the switching triggering module is used for judging whether the state switching condition is met or not and outputting state switching information according to a judging result;

and the adjusting control module is used 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.

Through adopting above-mentioned technical scheme, when big visual angle mode, because the blocking assembly is in the open state, the effective detection scope of response module is great, can improve the scope and the efficiency of human response, is applicable to in the response detection to the human body that is moving. When the sensing module needs to detect a static human body, the sensing module needs to actively move (rotate in the directions of up, down, left and right, etc.) to detect the static human body, however, if the sensing module performs sensing detection in a large visual angle mode, the movement of the sensing module can be misjudged by airflow flowing on the surface and the environmental temperature difference in the detected range due to the large effective detection range of the sensing module, for example, the detection angle of the fresnel lens is 120 degrees, in the range, the environmental temperature in the left area is possibly different from the environmental temperature in the right area, the temperature difference exists, and when the sensing module rotates, the change of the temperature is detected, so that the sensing module can malfunction to output, and the sensing module is misjudged to exist in the human body. Therefore, when sensing detection is performed on a static human body, the mode needs to be switched to a small visual angle mode, the effective detection range of the sensing module is reduced, and the accuracy of static human body sensing is improved.

In summary, the present application has the following beneficial effects:

1. the design that the blocking component can move on the shell and the design that the driving component drives the blocking component to move are utilized, when the probe needs to use a larger effective detection range for detection, the probe can be adjusted to a first induction area, and the scanning visual angle range is enlarged; when the probe needs to use a smaller effective detection range for detection, the probe can be adjusted to the second sensing area, so that the scanning visual angle range is reduced.

2. The sensing module can scan the positions of multiple directions according to the control of the system by utilizing the rotation of the first axis, the second axis, the upper, lower, left and right directions.

3. When in a large visual angle mode, the blocking component is in an open state, so that the effective detection range of the sensing module is larger, the range and the efficiency of human body sensing can be improved, and the sensing module is suitable for sensing and detecting a moving human body; when sensing detection is performed on a static human body, the mode needs to be switched to a small visual angle mode, the effective detection range of the sensing module is reduced, and the accuracy of static human body sensing is improved.

Drawings

Fig. 1 is a front view of a sensing module according to an embodiment of the present application, wherein the sensing module is in an open state.

Fig. 2 is a schematic diagram of a state switch of the sensing module, wherein the sensing module in fig. 2A is in an open state, and the sensing module in fig. 2B is in a closed state.

Fig. 3 is an exploded view of the sensor module of fig. 1.

Fig. 4 is a cross-sectional view of the sensing die set in an open state.

Fig. 5 is a cross-sectional view of the sensing die set in a closed state.

Fig. 6 is a schematic view of the blocking assembly in a closed state.

Fig. 7 is an exploded view of the blocking assembly of fig. 6.

Fig. 8 is a schematic view of the assembly of the top cover, probe, circuit board and mounting bracket.

Fig. 9 is a schematic view of the assembly of the mounting block and the mounting bracket.

Fig. 10 is a schematic view of the assembly of the top cover, circuit board and mounting bracket.

Fig. 11 is a schematic diagram illustrating state switching of a sensing module according to a second embodiment of the present application.

Fig. 12 is a front view of a body sensor according to an embodiment of the present application, in which the sensing module is in a closed state.

Fig. 13 is a flow chart of a human body sensing detection method according to an embodiment of the present application.

Fig. 14 is a schematic block diagram of a human body sensing detection system according to an embodiment of the present application.

Reference numerals illustrate:

1. a housing; 11. a mounting frame; 12. a top cover; 121. a connecting ring; 1211. an arc-shaped concave surface; 122. an induction port; 123. a slideway hole; 124. a connecting column; 1243. a relief groove; 125. a positioning block;

2. A probe; 21. an inductive element; 22. an optical lens; 221. a clip;

3. a blocking assembly; 31. a baffle; 311. a detection window; 312. detecting the groove; 313. an inner extension; 314. positioning the protruding blocks; 315. a positioning groove; 32. a support shaft; 321. a driving shaft; 3211. a driving gear portion; 322. a driven shaft; 3221. a driven gear section; 33. a connecting piece; 331. a drive gear section; 332. a positioning part; 35. a fixing hoop; 351. a blocking piece; 352. a connecting strip; 36. a magnetic member;

4. a drive assembly; 41. a first motor; 42. a main gear;

5. a bottom plate; 51. a support table; 511. a first limit groove; 52. a mounting block; 521. the second limit groove; 53. a side plate; 54. installing a screw; 522. a card interface; 56. a mounting part; 561. a clamping block; 562. a connecting pipe; 57. covering the block; 571. hanging rings; 58. a positioning groove; 59. a relief hole;

6. a support plate; 61. a rotation hole; 62. a mounting groove; 63. installing a bayonet; 64. a connecting block; 65. a fixing member;

7. a circuit board; 71. a connection part;

8. a head housing; 81. a second motor; 82. a mounting port; 9. a main body housing; 91. a third motor; 92. a receiving groove; 10. a main body base.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art under the premise of understanding the inventive concept of the present invention are all within the scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In order to facilitate understanding of the technical scheme of the invention, the sensing module, the human body sensor and the human body sensing detection system of the invention are described in further detail below, but are not taken as the protection scope of the invention.

In addition, the term "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, unless otherwise specified, the term "/" generally indicates that the associated object is an "or" relationship.

Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings 1-8 of the specification.

The embodiment of the application provides an induction module.

Embodiment one:

referring to fig. 1 and 2, the induction module comprises a housing 1, a probe 2, a blocking assembly 3 and a driving assembly 4, wherein the housing 1 can provide support for the probe 2, the blocking assembly 3 and the driving assembly 4; the probe 2 is used for collecting signals in the environment in an effective detection range; the blocking component 3 comprises an open state and a closed state, the blocking component 3 can switch states in a self-moving mode and adjust the effective detection range of the probe 2, and the driving component 4 provides a power source for the movement of the blocking component 3.

Referring to fig. 2, the housing 1 includes a mounting frame 11 and a top cover 12, the mounting frame 11 and the top cover 12 are vertically arranged as shown in the drawing, and are fixed by a fixing member 65. The mounting frame 11 comprises a bottom plate 5 and a plurality of supporting plates 6 arranged on the bottom plate 5, wherein each supporting plate 6 is arranged in pairs, and a space for accommodating the blocking assembly 3 is reserved between the two corresponding supporting 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 frame 11, and the outer side of the top cover 12 refers to the side of the top cover 12 facing away from the mounting frame 11. The middle part of the inner side of the top cover 12 is provided with a connecting ring 121, an induction port 122 is formed in the connecting ring 121, and the probe 2 can be exposed out of the top cover 12 through the induction port 122.

Referring to fig. 1, a probe 2 is fixedly disposed between a top cover 12 and a mounting frame 11. The position of the connection ring 121 corresponds to the position of the probe 2, and in a state where the probe 2, the top cover 12 and the mounting frame 11 are assembled, the probe 2 can be exposed to the outside of the top cover 12 through the sensing port 122, and the sensing end of the sensing element 21 faces the sensing port 122. Specifically, the probe 2 in this embodiment adopts pyroelectric infrared sensing technology, and is capable of receiving infrared signals from the environment.

Referring to fig. 1, in the present embodiment, the detection range of the probe 2 has two types: the detection range and the effective detection range are preset. The preset detection range refers to a range of signals in an environment that the probe 2 itself can receive in an ideal state, and is a preset value, and is set after the probe 2 leaves the factory as a product, and is not spontaneously changed by the probe 2 in an operating state.

Referring to fig. 3, the effective detection range refers to a range of signals in the environment that the probe 2 itself can receive in an actual operating state. In the working state, since the signal in the environment enters the sensing port 122 from the front of the sensing port 122, passes through the sensing port 122 and is received by the probe 2, the size of the effective detection range is related to the capacity of the sensing port 122 for the signal to pass through, i.e. the degree to which the sensing port 122 is blocked. Referring to fig. 2A, if there is no shielding at the sensing port 122, the effective detection range of the probe 2 is the preset detection range of the probe 2. Referring to fig. 2B, if the sensing port 122 is blocked, a part of signals in the environment cannot normally pass through the sensing port 122, and the effective detection range of the probe 2 is smaller than the preset detection range of the probe 2.

Referring to fig. 4, the blocking assembly 3 includes a blocking piece 31, a support shaft 32, and a connection member 33. The blocking piece 31 is movable, and when the blocking piece 31 moves to different positions in front of the sensing opening 122, the blocking piece 31 can block the sensing opening 122 to different degrees. The support shaft 32 is rotatably connected between the pair of support plates 6, and both ends of the connecting member 33 are fixedly connected to the baffle 31 and the support shaft 32, respectively. When the support shaft 32 rotates, the support shaft 32 drives the connecting piece 33 to swing, and the connecting piece 33 drives the baffle 31 to do circular motion around the support shaft 32.

Referring to fig. 4, the maximum distance between the baffle 31 and the support shaft 32 is greater than the maximum distance between the probe 2 and this support shaft 32, so as to reduce the risk of the baffle 31 colliding with the probe 2 during movement. The outside of the top cover 12 is provided with a slide hole 123, the slide hole 123 is of a through hole structure, and the position and the shape of the slide hole 123 respectively correspond to the moving path and the cross section shape of the baffle 31, so that the baffle 31 can pass through the top cover 12 through the slide hole 123 when moving.

Referring to fig. 5, specifically, the shutter 31 is provided with a detection window 311, and the detection window 311 penetrates the shutter 31. The specific position of the detection window 311 is associated with a reference center line a of the probe 2, where the reference center line a refers to a line that points in the detection direction of the probe 2 and passes through the center point of the probe 2.

Referring to fig. 4 and 5, in the present embodiment, the shutter 31 has at least two states: an open state and a closed state. When in the open state, the shielding area of the shielding piece 31 to the sensing port 122 is minimum, or the shielding piece 31 does not shield the sensing port 122, at this time, signals in the environment can freely pass through the sensing port 122, the effective detection range of the probe 2 reaches the maximum, and specifically, the shielding piece 31 can also enter the slideway hole 123 for storage. When in the closed state, the baffle 31 covers and shields the sensing port 122, and the detection window 311 and the probe 2 pass through the reference center line A respectively, at this time, signals in the environment can only pass through the sensing port 122 through the detection window 311, and the effective detection range of the probe 2 is minimum. Corresponding to whether the sensing port 122 is shielded or not, the probe 2 is provided with a first sensing area and a second sensing area, when the baffle 31 is in an open state, the sensing port 122 is not shielded by the baffle 31, and the first sensing area of the probe 2 corresponds to the area provided by the sensing port 122; when the baffle 31 is in the closed state, the sensing port 122 is blocked by the baffle 31, and the first sensing area of the probe 2 corresponds to the area provided by the detection window 311.

Referring to fig. 3, in the present embodiment, a positioning portion 332 is disposed at one end of the connecting member 33, which is far from the reference center line a and is close to the supporting shaft 32, and a positioning groove 58 corresponding to the positioning portion 332 is formed in the bottom plate 5, when the blocking piece 31 is in the closed state, the positioning portion 332 is received in the positioning groove 58 and abuts against the bottom plate 5, so as to limit the continuous swing of the connecting member 33, thereby limiting the maximum movement range of the blocking piece 31.

Referring to fig. 3, the driving assembly 4 is mounted on the mounting frame 11, and the driving assembly 4 is in driving connection with the support shaft 32. The driving component 4 is an electric control device, and the driving component 4 can drive the supporting shaft 32 to rotate based on a control signal received by the driving component. The rotation includes rotation in different directions, specifically, for one support shaft 32, forward rotation in a certain direction of the support shaft 32 can drive the baffle 31 to switch from the open state to the closed state, and corresponding reverse rotation can drive the baffle 31 to switch from the closed state to the open state, so that the baffle 31 has the functions of reciprocating motion and switching different states.

The implementation principle of the induction module of this embodiment is: by means of the arrangement that the baffle 31 can be moved to the top cover 12, the baffle 31 can be moved to different positions to adjust the shielding area of the sensing port 122, so that the effective detection range of the probe 2 is adjusted. 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 signals in the environment can be received by the probe 2 through the sensing port 122, and the aim of increasing the scanning visual angle range is fulfilled; 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 signals in the environment can only enter the sensing port 122 through the detection window 311 and then be received by the probe 2, and the purpose of reducing the scanning visual angle range is achieved.

It is noted that the probe 2 described above requires a larger/smaller effective detection range for detection, which requirement, although related to the detection range, has a smaller correlation with the total area of the environment, i.e. in an environment of the same area, the probe 2 requires a larger effective detection range for detection, and possibly a larger effective detection range for detection. For example, in the embodiment of the application, the probe 2 needs to receive an infrared signal radiated in an environment, and the system obtains a temperature difference of an individual position or an individual object 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 detection principle, the specific application scenario that the probe 2 needs a larger effective detection range for detection is as follows: in the whole environment, holistic temperature is comparatively balanced, and the temperature difference that different positions correspond is less, uses great effective detection scope can promote detection efficiency this moment, and the specific application scenario that probe 2 need less effective detection scope to detect is: in the whole environment, the whole temperature is unbalanced, the temperature difference corresponding to different positions is large, for example, the temperature difference between the left area and the right area is large, the target detection object can be mistakenly considered in the detection and analysis process, the detection accuracy can be improved by using a smaller effective detection range, and the risk of misjudgment of the system is reduced.

Referring to fig. 5 and 6, regarding a non-limiting specific description of the specific structure of the blocking assembly 3, in a preferred example, the number of the blocking pieces 31 is at least two, and preferably, the number of the 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 supporting shaft 32. One side of the two baffle plates 31 close to the reference center line A, namely, one side of the two baffle plates 31 which are oppositely arranged, is provided with a detection groove 312, the detection groove 312 is positioned in the middle of the side edge of the baffle plate 31, and openings of the two detection grooves 312 are oppositely arranged. Each baffle 31 is correspondingly provided with a supporting shaft 32, two ends of the baffle 31 and two ends of the supporting shaft 32 are respectively connected and fixed through two connecting pieces 33, a reserved space is formed among the baffle 31, the supporting shaft 32 and the two connecting pieces 33, specifically, when each baffle 31 is in a closed state, the probe 2 is accommodated in the reserved space, the two baffles 31 are mutually matched, and the detection grooves 312 on the two baffles 31 are combined to form a complete detection window 311; when each of the blocking pieces 31 is switched from the closed state to the open state, each of the blocking pieces 31 moves in a direction away from the reference center line a, and in the process, the movement of the two blocking pieces 31 is opposite and gradually goes deep into the slideway hole 123; when each of the flaps 31 is in the open state, each of the flaps 31 does not block the sensing port 122.

Referring to fig. 5 and 6, regarding a non-limiting specific illustration of the shape of the baffle 31 itself, in a preferred example, the surface of the baffle 31 has a continuous arc-shaped curved surface in a part of a sphere, and the position of the arc center corresponds to the position of the supporting shaft 32, so that the overall shape of the baffle 31 can be matched with the circular motion track thereof, the space required to be reserved for the movement of the baffle 31 in the equipment is reduced, the space utilization is improved, and the overall structure is more compact. Preferably, an inner extension 313 is disposed on a side of the baffle 31 away from the reference center line a, and when the baffle 31 is in a closed state, the whole baffle 31 is exposed to the sensing opening 122, but the inner extension 313 still penetrates and stays in the slide hole 123, so as to reduce the risk of foreign matters entering the housing 1 through the slide hole 123.

Referring to fig. 6 and 7, regarding a non-limiting specific description of the matching relationship between two blocking plates 31, in a preferred example, a positioning protrusion 314 and/or a positioning groove 315 are provided on a side of the blocking plate 31 where the detecting groove 312 is provided, the positioning protrusion 314 corresponds to the shape and position of both the positioning grooves 315, when the two blocking plates 31 are in a closed state, each positioning protrusion 314 on one blocking plate 31 can be in clamping fit with each positioning groove 315 on the other blocking plate 31, the clamping fit has a limiting effect on the two blocking plates 31, limits the relative movement of the two blocking plates 31 after folding, reduces looseness, and enables the two detecting grooves 312 to align, so that the detecting window 311 maintains a relatively complete shape. Preferably, two sides of the positioning protrusion 314 gradually narrow towards a direction away from the baffle plate 31, and two sides of the positioning groove 315 correspondingly expand gradually towards a direction away from the baffle plate 31, so that in a process that two baffle plates 31 gradually approach, two sides of the positioning protrusion 314 and two side inner walls of the positioning groove 315 have a guiding function, so that the positioning protrusion 314 can smoothly enter the positioning groove 315, and the risk of blocking is reduced.

Referring to fig. 6, further, at least one positioning protrusion 314 or positioning groove 315 is disposed on both sides of the detection groove 312. In this embodiment, each of the blocking plates 31 is provided with a positioning protrusion 314 and a positioning groove 315, wherein the positioning protrusion 314 and the positioning groove 315 are located on two sides of the detecting groove 312 respectively in a left-right manner on one of the blocking plates 31, and the positioning protrusion 314 and the positioning groove 315 are located on two sides of the detecting groove 312 respectively in a right-left manner on the other blocking plate 31. In a possible example, one of the blocking plates 31 may be provided with two positioning protrusions 314 distributed on both sides of the detection groove 312, and the other blocking plate 31 may be correspondingly provided with two positioning grooves 315 distributed on both sides of the detection groove 312.

Referring to fig. 5 and 6, in a non-limiting specific illustration of a structural design for improving the stability of the fit between the respective blocking pieces 31, in a preferred example, each of the connection members 33 is fixedly provided with a magnetic member 36. When each of the blocking pieces 31 is in the closed state, the adjacent magnetic pieces 36 attract each other, and the blocking pieces 31 are pushed by the attractive force, so that each of the blocking pieces 31 can be stably kept in the closed state, and the integrity of the detection window 311 is improved. 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 supporting shaft 32, a gap may exist after the two blocking pieces 31 are switched to the closed state, and the blocking pieces 31 can be pushed by the attractive force between the two magnetic pieces 36, so that the blocking pieces 31 are kept in mutual abutting connection, so as to improve the stability of the detection window 311.

Referring to fig. 6, regarding a non-limiting specific illustration of the material and shape of the magnetic member 36, in a preferred embodiment, the magnetic member 36 is a permanent magnet, the magnetic member 36 is generally cylindrical, and the axis of the magnetic member 36 is perpendicular to the axis of the support shaft 32. When each of the blocking pieces 31 is in the closed state, the axes of the two magnetic pieces 36 are coincident, and at this time, two opposite ends of the two magnetic pieces 36 are opposite to each other, so as to generate the maximum attractive force. In this embodiment, the magnetic member 36 moves synchronously with the connecting member 33, and the movement track of the magnetic member 36 is an arc track.

Referring to fig. 7, it should be noted that the two magnetic members 36 do not always maintain a significant attractive force, and the distance between the two magnetic members 36 gradually increases and the two magnetic members 36 gradually depart from a state of facing each other during the process of moving the two blocking plates 31 away from each other in the opposite direction, and when the angle between the two connecting members 33 is greater than the preset threshold value, no significant attractive force (i.e., an attractive force sufficient to drive the two blocking plates 31 to move in the free state) is generated between the two magnetic members 36. Correspondingly, in the process of reversely moving the two blocking pieces 31 to approach each other, the distance between the two magnetic pieces 36 gradually decreases, and the two magnetic pieces 36 gradually return to a state of being opposite to each other, when the angle between the two connecting pieces 33 is smaller than or equal to the preset threshold value, obvious attractive force is generated between the two magnetic pieces 36, and the two blocking pieces 31 are pushed to approach each other. Further, the magnetic member 36 is disposed at one end of the connecting member 33 near the supporting shaft 32, that is, the distance between the magnetic member 36 and the blocking piece 31 is greater than the distance between the magnetic member 36 and the supporting shaft 32, so as to reduce the radius of the arc-shaped motion track of the magnetic member 36, so that the two magnetic members 36 are more easy to reach a mutually opposite state during the movement process of the two magnetic members 36, and generate attractive force in time.

Referring to fig. 6 and 7, regarding 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 collar 35, the fixing collar 35 cooperates with the connecting member 33 to form a ring structure, the magnetic member 36 is inserted into the fixing collar 35, and the inner wall of the fixing collar 35 abuts against the circumferential side of the magnetic member 36 to fix the magnetic member 36 by friction force. The fixing collar 35 forms a fixing end near one end of the reference center line a, the fixing end is fixedly provided with a blocking piece 351, and the blocking piece 351 is arranged along the radial direction of the magnetic piece 36 so as to block an opening of the fixing end and prevent the magnetic piece 36 from being completely separated from the fixing end. In the closed state, the fixed ends of the adjacent two fixing hoops 35 are opposite to each other, the two magnetic pieces 36 attract each other, and under the action of attraction force, the magnetic pieces 36 are abutted against the blocking blocks 351.

Referring to fig. 7, preferably, the number of the blocking blocks 351 is at least two, and each blocking block 351 is circumferentially spaced around the fixed end. In the present embodiment, the number of the blocking pieces 351 is preferably 2. Further, a space is left between the blocking blocks 351 and the fixing collar 35, so that one end of the magnetic member 36 can be exposed to the fixing end, and two adjacent blocking blocks 351 are spaced apart in the radial direction of the magnetic member 36, so as to reduce the blocking of the magnetic field of the magnetic member 36 by each blocking block 351. Specifically, the fixing collar 35 and each blocking piece 351 are connected by a connecting strip 352, each connecting strip 352 extends along the axial direction of the magnetic member 36, and each connecting strip 352 abuts against the side wall of the magnetic member 36.

Referring to fig. 7, the end of the fixing collar 35 remote from the fixing end forms a mounting end, and unlike the setting of the fixing end, the opening of the mounting end is not shielded. When assembling the connection member 33 and the magnetic member 36, an assembler may insert one end of the magnetic member 36 into the fixing collar 35 from the mounting end and push the magnetic member 36 so that the magnetic member 36 abuts against the blocking block 351. Preferably, the opening of the mounting end has a chamfer to guide the insertion of the magnetic member 36 into the interior of the securing collar 35.

Referring to fig. 7, in one non-limiting specific illustration of the rotational drive of the single support shaft 32, in a preferred embodiment, the drive assembly 4 includes a first motor 41, the first motor 41 being secured to the side of the base plate 5 remote from the top cover 12. The drive shaft of the first motor 41 is coaxially provided with a main gear 42, and the support shaft 32 is coaxially connected with a drive gear portion 331. The bottom plate 5 is provided with a relief hole 59, and the driving gear 331 is disposed through the relief hole 59 and engaged with the driving gear 331. The first motor 41 drives the main gear 42 to rotate through the driving rod, and the main gear 42 drives the driving gear part 331 to rotate, so that the supporting shaft 32 is driven to rotate.

Referring to fig. 6 and 7, in consideration of the movement stroke of the blocking piece 31, the supporting shaft 32 does not need to rotate by a large angle (e.g., 180 °), in this embodiment, the driving gear portion 331 is specifically an arc-shaped block fixed to the connecting member 33, and the central angle of the arc-shaped block is larger than the maximum rotation angle of the supporting shaft 32, and the outer edge of the driving gear portion 331 is formed with teeth for the main gear 42 to mesh.

Referring to fig. 6 and 7, regarding one non-limiting specific description of the rotational driving of the plurality of support shafts 32, in a preferred example, the two support shafts 32 are divided into one driving shaft 321 and one driven shaft 322, wherein the driving shaft 321 is formed with a driving gear portion 3211 along its own circumferential side, and the driven shaft 322 is formed with a driven gear portion 3221 engaged with the driving gear portion 3211 along its own circumferential side, and when the driving shaft 321 is rotated, the driving gear portion 3211 and the driven gear portion 3221 are engaged to transmit so as to synchronously rotate the driven shaft 322 and the driving shaft 321. Preferably, the number of the first motors 41 is identical to the number of the driving shafts 321, in this embodiment, the number of the first motors 41 is 1, the number of the driving gear portions 331 is also 1, and the driving gear portions 331 are fixed to the connectors 33 corresponding to the driving shafts 321. By utilizing the transmission design of the main shaft and the driven shaft 322, the driving assembly 4 only needs to drive the driving shaft 321 to rotate, and can drive the plurality of supporting shafts 32 to rotate simultaneously, so that the number of driving sources can be saved, the overall structure is simplified, the synchronism of each baffle 31 during movement can be enhanced, and the stability of the baffle 31 during state switching is improved.

Referring to fig. 7, in the present embodiment, in order to improve the space utilization, the overall structure of the apparatus is made more compact, each support shaft 32 is provided with only one driving gear portion 3211 or driven gear portion 3221, and each support shaft 32 is provided with only one magnetic member 36, the driving gear portion 3211 or 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.

Referring to fig. 7 and 8, regarding one non-limiting specific description of the mounting structure of the support shaft 32 and the support plates 6, in a preferred example, the bottom plate 5 is rectangular in shape as a whole, and the number of support plates 6 is two; the two support plates 6 are respectively disposed on two sides of the bottom plate 5, and are distributed along the length direction of the side edge of the bottom plate 5, and an opening formed between the bottom plate 5 and the two support plates 6 faces the top cover 12. Each supporting shaft 32 is arranged between two supporting plates 6, one side of each supporting plate 6, which is arranged oppositely, is provided with rotating holes 61 corresponding to the end parts of each supporting shaft 32 one by one, the inner diameter of each rotating hole 61 is matched with the diameter of the end part of each supporting shaft 32, two ends of each supporting shaft 32 are respectively inserted and accommodated in the corresponding rotating holes 61, and the rotating connection between the supporting shafts 32 and the supporting plates 6 is realized. Preferably, the rotating holes 61 are blind holes, the distance between the bottoms of the rotating holes 61 is matched with the length of the supporting shaft 32, and the two supporting plates 6 have a limiting effect on the supporting shaft 32 to limit the supporting shaft 32 to displace in the axial direction.

Referring to fig. 7 and 8, a plurality of mounting grooves 62 are further provided in one-to-one correspondence with the respective rotation holes 61 on a side of the support plate 6 away from the bottom plate 5, and the respective mounting grooves 62 communicate with the corresponding rotation holes 61. The connection of the mounting groove 62 and the rotation hole 61 forms a mounting bayonet 63, and the width of the mounting bayonet 63 is smaller than the inner diameter of the rotation hole 61. The groove walls of the two sides of the mounting groove 62 are gradually widened in a direction away from the mounting bayonet 63, and the width of the groove opening of the mounting groove 62 at one end away from the mounting bayonet 63 is larger than the inner diameter of the rotary hole 61. When a user installs the support shaft 32, two ends of the support shaft 32 can be placed in the notches corresponding to the installation grooves 62, and the two ends of the support shaft 32 can easily enter the corresponding installation grooves 62 because the width of the notches of the installation grooves 62 is larger than the diameter of the end parts of the support shaft 32. Subsequently, the user can apply force to the support shaft 32 to bring the support shaft 32 gradually closer to the mounting bayonet 63, and snap the end of the mounting shaft into the mounting bayonet 63 by interference fit to enter the inside of the rotation hole 61. Since the mounting bayonet 63 has a width smaller than the diameter of the end of the support shaft 32, the support shaft 32 is not easily separated from the rotation hole 61 after entering the rotation hole 61, and the relative fixation between the support shaft 32 and the support plate 6 is achieved.

Referring to fig. 7 and 9, regarding a non-limiting specific description of the mounting structure of the support shaft 32 and the base plate 5, in a preferred example, a support table 51 and a mounting block 52 are provided at the middle of the base plate 5, which cooperate to limit the support shaft 32. Wherein, the supporting table 51 comprises two backup pads that are parallel to each other, the supporting table 51 is fixed to be set up in the bottom plate 5 surface, the first spacing groove 511 that supplies each back shaft 32 to hold is offered to the one side that the supporting table 51 kept away from bottom plate 5, the second spacing groove 521 that supplies each back shaft 32 to hold is offered to the one side that the installation piece 52 is close to the supporting table 51, after installation piece 52 and supporting table 51 cooperation installation, the notch of first spacing groove 511 and second spacing groove 521 are relative, and form the spacing space that supplies back shaft 32 to hold between first spacing groove 511 and the second spacing groove 521. Preferably, the first limiting groove 511 and the second limiting groove 521 are semicircular, the limiting space is circular as a whole and the center of the circle passes through the axis of the rotating hole 61, and the inner diameter of the limiting space is matched with the diameter of the supporting shaft 32, so that the supporting shaft 32 can rotate between the supporting table 51 and the mounting block 52 while being limited between the first limiting groove 511 and the second limiting groove 521.

Referring to fig. 7 and 9, regarding one non-limiting specific description of 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 two sides of the bottom plate 5 adjacent to the two support plates 6 are fixedly provided with side plates 53, two ends of the mounting block 52 are respectively provided with mounting screws 54, and the mounting screws 54 penetrate through the mounting block 52 and are in threaded connection with the side plates 53. In this embodiment, the support table 51 and the mounting block 52 are preferably detachably connected by bolting, and in another possible embodiment, the support table 51 and the mounting block 52 may be detachably connected by a snap fit. Further, two ends of the supporting table 51 are respectively provided with a clamping interface 522, and the two side plates 53 are respectively accommodated in the two clamping interfaces 522. The two card interfaces 522 have a positioning effect on the mounting block 52, which facilitates the user's screwing of the mounting screw 54. When the user installs the support shafts 32, after the support shafts 32 are clamped into the corresponding rotating holes 61, the support shafts 32 are accommodated in the corresponding first limiting grooves 511, then the user can fixedly install the installation blocks 52 on the support table 51, so that the support shafts 32 are limited between the support table 51 and the installation blocks 52, and the support table 51 and the installation blocks 52 can prevent the support shafts 32 from moving in the direction of being separated from the installation bayonets 63, so that the fixation between the support shafts 32 and the support plates 6 is more stable.

Referring to fig. 9, specifically, two ends of the supporting table 51 are respectively provided with a wedge surface, the wedge surfaces are located on a surface of the supporting table 51 far away from the bottom plate 5, an included angle is formed between the wedge surfaces and the surface of the bottom plate 5, and the distance between the wedge surfaces and the bottom plate 5 gradually decreases towards a direction far away from the first limiting groove 511, so that the supporting table 51 is in a trapezoid shape as a whole. The mounting block 52 is provided with inclined portions matched with the wedge faces, so that the mounting block 52 leaves a trapezoidal space for matching with the supporting table 51, when the supporting table 51 and the mounting block 52 are aligned, the two inclined portions are respectively contacted with the two wedge faces, and each first limiting groove 511 is matched with the corresponding second limiting groove 521 to form a complete limiting space. In this embodiment, when the mounting block 52 is mounted on the supporting table 51, the user has a guiding function between the wedge surface and the inclined portion, so that the supporting table 51 and the mounting block 52 are easier to relatively move to a mutually aligned state, and the matching card interface 522 has a positioning function between the supporting table 51 and the mounting block 52, so that the user can assemble conveniently.

Referring to fig. 3, regarding one non-limiting specific illustration of the mounting structure of the top cover 12 and the mounting frame 11, in a preferred example, the top cover 12 has a disc shape as a whole, and the top cover 12 is fixedly provided with a plurality of connection posts 124 for connecting the mounting frame 11. Preferably, the number of the connecting posts 124 is two, the positions of the two connecting posts 124 correspond to the positions of the two supporting plates 6, and a space for accommodating and moving the baffle 31 and the connecting piece 33 is reserved between the two connecting posts 124. The backup pad 6 is fixed to be provided with and supplies spliced pole 124 complex connecting block 64, and connecting block 64 and spliced pole 124 pass through mounting 65 and dismantle the connection, and in this embodiment, mounting 65 is the bolt structure, preferably the fixed screw, and the screw hole that supplies the fixed screw to connect is seted up to spliced pole 124 one side, and the fixed screw wears to locate connecting block 64 and threaded connection in spliced pole 124. In other embodiments, the fixing member 65 may be a clamping structure or a clasping structure. Specifically, a positioning block 125 is fixedly disposed on a surface of the connecting column 124 away from the top cover 12, the connecting block 64 is provided with a through hole for inserting the positioning block 125, the positioning block 125 has a positioning function on the connecting block 64 and the connecting column 124, and relative displacement between the connecting block 64 and the connecting column 124 is prevented.

Referring to fig. 7, the length direction of the connection post 124 is parallel to the axial direction of the top cover 12 and perpendicular to the bottom plate 5. The top cover 12 and the bottom plate 5 need to be able to always maintain a distance to provide a certain accommodation space for the structure in the housing 1, which distance is provided by the cooperation between the connection post 124 and the support plate 6, and in fact, the width of the support plate 6 and the length direction of the connection post 124 can compensate each other. In other embodiments, to achieve the same separation distance as described above, the length of the connection post 124 is increased if the width of the support plate 6 is shorter, and the length of the connection post 124 is decreased if the width of the support plate 6 is shorter, and the specific value of this separation distance may also be set according to the actual volumes of the probe 2 and the blocking assembly 3.

Referring to fig. 7 and 8, specifically, the two connecting posts 124 connected to the top cover 12 are divided into a first connecting post 124a and a second connecting post 124b, wherein the first connecting post 124a is disposed close to one end of the support shaft 32 where the driving gear portion 3211 or the driven gear portion 3221 is disposed, the width of the first connecting post 124a is greater than the width of the second connecting post 124b, and the number of fixing pieces 65 disposed on the first connecting post 124a is greater than the number of fixing pieces 65 disposed on the second connecting post 124 b. Since the driving gear portion 3211 and the driven gear portion 3221 are required to work through the meshing transmission, the vibration is larger during the working, and the connection post 124 and the connection block 64 close to the position are gradually easier to loosen than the other connection post 124 and connection block 64, the risk of loosening between the top cover 12 and the mounting frame 11 can be reduced in a targeted manner by increasing the contact area between the two and the fixing strength provided by the lifting fixing member 65. In the present embodiment, the first connecting post 124a is detachably connected to the corresponding connecting block 64 by two fixing screws provided at intervals, and the second connecting post 124b is detachably connected to the corresponding connecting block 64 by one fixing screw.

Referring to fig. 8, regarding a non-limiting detailed description of 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 disposed between the top cover 12 and the mounting frame 11, and the probe 2 is fixed to the circuit board 7. The two ends of the circuit board 7 are fixedly provided with connecting portions 71 respectively, a space for the connecting portions 71 to be inserted is reserved between each group of connecting blocks 64 and the connecting column 124, preferably, a relief groove 1243 is concavely arranged on one surface of the connecting column 124 away from the top cover 12, and the two connecting portions 71 are respectively accommodated in the space provided by the two relief grooves 1243.

Referring to fig. 8, specifically, the two connection portions 71 correspond to the first connection post 124a and the second connection post 124b, respectively, wherein the width of the connection portion 71 corresponding to the first connection post 124a is greater than the width of the connection portion 71 corresponding to the second connection post 124b, so as to increase the contact area between the connection portion 71, the first connection post 124a, and the corresponding mounting block 52, which is more stable. The positioning block 125 of the first connecting column 124a is disposed in the middle of the relief groove 1243, and a through hole for inserting the positioning block 125 is formed in the connecting portion 71 corresponding to the first connecting column 124a, so that the connecting portion 71 is fixed between the first connecting column 124a and the corresponding connecting block 64. The connecting portion 71 corresponding to the second connecting post 124b is provided with a through hole through which a fixing screw is inserted, and the fixing screw is sequentially inserted into the connecting block 64 and the connecting portion 71 and is in threaded connection with the second connecting post 124b, so that the connecting portion 71 is fixed between the second connecting post 124b and the corresponding connecting block 64.

Referring to fig. 8, in a non-limiting specific illustration of the structure of the probe 2, in a preferred example, the probe 2 includes a sensing element 21 and an optical lens 22. The sensing element 21 is a pyroelectric infrared sensor, and can receive signals (i.e. infrared rays) radiated from the environment in an operating state, and the optical lens 22 is used for increasing the signal receiving range (i.e. detection range) of the sensing element 21. The sensing element 21 is soldered to the circuit board 7, and the optical lens 22 is sleeved on the probe 2 and fixed on the circuit board 7. The optical lens 22 is preferably a fresnel lens, the optical lens 22 is provided with a lens seat for being matched with the circuit board 7, the lens seat is integrally rectangular, and four sides of the lens seat are fixedly provided with buckling pieces 221 which can be matched with the circuit board 7 in a clamping manner. The optical lens 22 is fixed on the circuit board 7 through the lens holder clamping connection, so that the optical lens 22 can be fixed between the top cover 12 and the mounting frame 11.

Referring to fig. 10, specifically, the connection ring 121 is located in the middle of the top cover 12, the optical lens 22 is located in the middle of the circuit board 7, the position of the connection ring 121 corresponds to the position of the optical lens 22, and an arc-shaped concave 1211 matched with the optical lens 22 and distributed in a ring shape is concavely arranged at the inner side of one end of the connection ring 121, when the top cover 12, the mounting frame 11, the circuit board 7 and the optical lens 22 are fixedly mounted, the arc-shaped concave 1211 abuts against the outer surface of the optical lens 22, so that acting force is generated between the top cover 12 and the optical lens 22, and the overall stability is enhanced.

Referring to fig. 9 and 10, regarding one non-limiting specific description of the mounting structure of the first motor 41, in a preferred example, the base plate 5 is provided with a mounting portion 56 in which the first motor 41 can be accommodated and a covering block 57 for fixing the first motor 41 in cooperation with the mounting portion 56. The whole installation department 56 and the lid piece 57 are the arch, and the arch opening sets up relatively, forms the accommodation space of shape and first motor 41 organism assorted between installation department 56 and the lid piece 57, and the organism of first motor 41 is installed in the accommodation space, and installation department 56 and lid piece 57 cooperation clamp the organism of first motor 41 to make first motor 41 fix on bottom plate 5. Preferably, the fixed connection between the mounting portion 56 and the closing block 57 is a detachable connection for the user to replace or repair the first motor 41. Specifically, a clamping block 561 is fixedly arranged on one side of the mounting part 56, a connecting pipe 562 is fixedly arranged on the other side, and threads are arranged on the inner side of the connecting pipe 562; one side of the cover block 57 is fixedly provided with a hanging ring 571 which is matched with the clamping block 561 in a clamping way, the other side of the cover block 57 is provided with a locking screw, and the locking screw penetrates through the cover block 57 and is in threaded connection with the connecting pipe 562, so that the cover block 57 and the mounting part 56 are fixedly mounted. When the first motor 41 is mounted, the first motor 41 may be placed between the mounting portion 56 and the cover block 57, the clamping block 561 is clamped with the hanging ring 571, 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 are matched to clamp the first motor 41.

Referring to fig. 3, in a non-limiting specific illustration of a method for manufacturing the induction module, in a preferred example, the top cover 12 is integrally formed by an injection molding process, the mounting frame 11 is integrally formed by an injection molding process, and the baffle 31, the connecting member 33 and the support shaft 32 are integrally formed by an injection molding process.

Embodiment two:

referring to fig. 10 and 11, the embodiment of the present application is different from the first embodiment in that: the blocking component 3 comprises a blocking piece 31, the blocking piece 31 is made of flexible materials, the blocking piece 31 can be folded and deformed around the axis of the supporting shaft 32, and a detection window 311 is formed in the middle of the blocking piece 31. Specifically, when the baffle 31 is in the open state, the baffle 31 is folded and stored in the housing 1; when the shutter 31 is in the closed state, the shutter 31 is fanned out as a whole to cover the entire sensing port 122, and the detection window 311 faces the sensing port 122.

The embodiment of the application also provides a human body sensor.

Referring to fig. 12, the body inductor includes any one of the above-described induction modules, and further includes a head housing 8, a body housing 9, and a body base 10. Wherein, head shell 8 wholly takes the shape of sphere, and head shell 8 has seted up mounting hole 82, and induction module fixed mounting is in mounting hole 82. The main body case 9 is provided with a receiving groove 92 in which the head case 8 is received, and the head case 8 is rotatably coupled to the receiving groove 92. The rotation axis of the head housing 8 is defined as a first axis about which the head housing 8 and the body housing 9 can relatively rotate. In the illustrated direction, the first axis is parallel to the horizontal plane, and thus the rotation between the head housing 8 and the body housing 9 is the rotation in the up-down direction.

Referring to fig. 12, the main body case 9 is rotatably coupled to the main body base 10. The rotation axis of the main body housing 9 is defined as a second axis about which the main body housing 9 and the main body base 10 can rotate relatively, and an angle is formed between the first axis and the second axis. In the illustrated orientation, the second axis is perpendicular to the horizontal plane, and the angle between the first axis and the second axis is 90 °, so that the rotation between the main body housing 9 and the main body base 10 is a rotation in the left-right direction.

Referring to fig. 12, specifically, the body inductor further includes a second motor 81 for driving the head housing 8 to rotate and a third motor 91 for driving the main body housing 9 to rotate, wherein a body of the second motor 81 is installed in the head housing 8, an output shaft of the second motor 81 penetrates through the head housing 8 and is fixed to the outside of the main body, and the induction module can be driven to rotate in the up-down direction by driving of the second motor 81. The body of the third motor 91 is fixed on the main body base 10, the output shaft of the third motor 91 is connected through the main body shell 9 of the transmission structure, and the induction module can be driven to rotate in the left-right direction by utilizing the driving of the third motor 91. The induction module can scan the positions in multiple directions according to the system control by utilizing the rotation in all directions.

The human body sensor provided in this embodiment includes each module of the above-mentioned sensing module, so that the same technical effects as those of the above-mentioned embodiment can be achieved, and the principle analysis can refer to the related description of the above-mentioned sensing module, which is not repeated here.

The embodiment of the application also provides a human body induction detection method.

Referring to fig. 13 and 14, the human body sensing detection method includes:

s1, judging whether the state switching condition is met, and outputting state switching information according to a judging result.

The state switching condition is used for judging whether the current human body induction detection system needs to switch the detection mode or not so as to meet different detection requirements. The detection mode includes a large viewing angle mode and a small viewing angle mode, wherein the blocking component 3 is in an open state when in the large viewing angle mode, and the blocking component 3 is in a closed state when in the small viewing angle mode.

The satisfaction conditions of the state switching conditions include: whether the current time point is up to a preset switching period from the time point of last outputting state switching information. Specifically, the human body induction detection system can perform real-time timing, and every other switching period, the human body induction detection system can meet the state switching condition and perform detection mode switching. If the stay time in the large visual angle mode reaches the switching period, the large visual angle mode is switched to the small visual angle mode; when the stay time in the small viewing angle mode reaches the switching period, the small viewing angle mode is switched to the large viewing angle mode.

The satisfaction conditions of the state switching conditions include: whether active control information from the terminal device is received. The terminal device may be a PC terminal, or any intelligent electronic product capable of implementing corresponding functional requirements, for example: smart phones, tablet computers, etc., if smart phones or similar intelligent electronic products, can be realized through corresponding APP. The terminal equipment is in remote communication with the human body induction detection system, and a user can send active control information to the human body induction detection system through the terminal equipment.

S2, switching the detection mode based on the state switching information.

S21, based on the state switching information, switching driving information is generated and transmitted to the driving component 4.

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.

Wherein, 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.

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

The implementation principle of the human body induction detection method provided by the embodiment of the application is as follows: when in the large visual angle mode, the blocking component 3 is in an open state, so that the effective detection range of the sensing module is larger, the range and the efficiency of human body sensing can be improved, and the sensing module is suitable for sensing and detecting the moving human body. When the sensing module needs to detect a static human body, the sensing module needs to actively move (rotate in the directions of up, down, left and right, etc.) to detect the static human body, however, if the sensing module performs sensing detection in a large visual angle mode, the movement of the sensing module can be misjudged by airflow flowing on the surface and the environmental temperature difference in the detected range due to the large effective detection range of the sensing module, for example, the detection angle of the fresnel lens is 120 degrees, in the range, the environmental temperature in the left area is possibly different from the environmental temperature in the right area, the temperature difference exists, and when the sensing module rotates, the change of the temperature is detected, so that the sensing module can malfunction to output, and the sensing module is misjudged to exist in the human body. Therefore, when sensing detection is performed on a static human body, the mode needs to be switched to a small visual angle mode, the effective detection range of the sensing module is reduced, and the accuracy of static human body sensing is improved.

The embodiment of the application also provides a human body induction detection system.

Referring to fig. 14, the human body sensing and detecting system includes:

the switching triggering module 101 is configured to determine whether a state switching condition is satisfied, and output state switching information to the adjustment control module 102 according to a determination result.

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.

The driving component 4 is used for driving the blocking component 3 to move according to the switching driving information so as to switch the detection mode.

And the induction module is used for carrying out human body induction scanning based on the current detection mode.

The human body induction detection system provided in this embodiment can achieve the same technical effects as the previous embodiments because the functions of the modules and the logic connections between the modules can achieve the steps of the human body induction detection method in the previous embodiments, and the principle analysis can see the related descriptions of the steps of the previous methods, which are not further described herein.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. An induction module, comprising:

a housing (1);

a probe (2) arranged on the shell (1), wherein the shell (1) is provided with an induction port (122) for receiving signals by the probe (2), and the probe is provided with a first induction area;

the blocking component (3) is movably arranged on the shell (1), the blocking component (3) can block the induction port (122), and the blocking component (3) can adjust the blocking area of the induction port (122) in a movable mode, so that the probe is provided with a second induction area, and the second induction area is smaller than the first induction area;

the driving assembly (4) is arranged on the shell (1) and connected with the blocking assembly (3), and the driving assembly (4) is configured to drive the blocking assembly (3) to move so that the effective sensing range of the probe (2) is passively changed from the first sensing area to the second sensing area.

2. The induction module according to claim 1, characterized in that said blocking assembly (3) comprises:

a baffle (31) for shielding the sensing port (122);

a support shaft (32) rotatably connected to the housing (1);

The two ends of the connecting piece (33) are respectively connected with the baffle piece (31) and the supporting shaft (32); the supporting shaft (32) can drive the connecting piece (33) to swing in a rotating mode so as to drive the baffle piece (31) to move around the probe (2) at the induction port (122).

3. The induction module according to claim 2, wherein: the baffle plate (31) is provided with a detection window (311) for providing the second sensing area, the detection window (311) penetrates through the baffle plate (31), and when the baffle plate (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).

4. The induction module according to claim 2, wherein: the number of the baffle plates (31) is at least two, and each baffle plate (31) is provided with the corresponding supporting shaft (32).

5. The sensing module of claim 4, wherein: the number of the baffle plates (31) is two, and a detection groove (312) is formed in one side, close to the adjacent baffle plates (31), of the baffle plates (31); when the two baffle plates (31) move to a closed state, the two baffle plates (31) can cover the induction port (122), and the two detection grooves (312) can form a detection window (311) for receiving signals by the probe (2).

6. The sensing module of claim 5, wherein: each connecting piece (33) is provided with a magnetic piece (36), and when each blocking piece (31) is in a closed state, adjacent magnetic pieces (36) attract each other so as to keep each blocking piece (31) in the closed state.

7. The sensing module of claim 4, wherein: the baffle plate (31) is provided with a positioning lug (314) and a positioning groove (315) for matching with the positioning lug (314); when each baffle plate (31) is in a closed state, the positioning convex block (314) of any baffle plate (31) can be inserted into the positioning groove (315) adjacent to the baffle plate (31).

8. The sensing module of claim 7, wherein: the two sides of the positioning lug (314) are gradually narrowed in a direction away from the baffle plate (31), and the shape of the positioning groove (315) is matched with that of the positioning lug (314).

9. A body inductor comprising the induction module of any one of claims 1 to 8, the body inductor further comprising:

A head housing (8) for mounting the induction module;

a main body housing (9) rotatably connected to the head housing (8), the head housing (8) and the main body housing (9) being capable of relative rotation about a first axis;

the main body base (10) is rotationally connected with the main body shell (9), the main body shell (9) and the main body base (10) can rotate around a second axis, and the first axis and the second axis form an included angle.

10. A human body induction detection system comprising the induction module of any one of claims 1 to 8, the human body induction detection system further comprising:

the switching triggering module (101) is used for judging whether the state switching condition is met or not and outputting state switching information according to a judging result;

and the adjusting control module (102) is used for generating switching driving information based on the state switching information and sending 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.