Embedded presence sensor

Abstract

The utility model relates to the technical field of human body sensors, and discloses an embedded existence sensor which comprises an embedded sensor shell, a detection range expanding mechanism is arranged at the bottom of the embedded sensor shell and comprises a first bearing plate, a protruding block is fixedly installed at the top of the first bearing plate, and the protruding block is fixedly connected with the embedded sensor shell. And the outer wall of the inner side of the convex block is rotationally connected with a rotary extension shaft. Through the design of the micro air pump, air can be conveyed into the inner cavity of the hollow seat, and then the air enters the inner cavity of the elastic rubber bag to promote the elastic rubber bag to generate stretching elastic deformation, so that the bearing plate II is pushed to rotate on the inner wall of the convex block by virtue of the rotary extension shaft, and the whole embedded sensor shell is inclined; the inclined embedded inductor shell performs detection in a large-range circular area, and compared with a traditional inductor, the inclined embedded inductor shell has a larger detection range and is convenient for a user to use.

Description

Technical Field

[0001] The utility model relates to the technical field of human body sensors, and in particular to an embedded presence sensor. Background Art

[0002] As people's living standards continue to improve, various smart home products are gradually integrated into people's lives, especially those with behavioral disabilities and high quality of life requirements. Among various smart home products, human presence sensors are widely used. Human presence sensors can sense the human body in the sensing space, thereby providing other electronic products with human-related judgment information. Millimeter wave radar can emit electromagnetic waves in the millimeter wave band and receive the reflected signals. By analyzing and processing the reflected signals, it can detect the breathing and heartbeat of the human body.

[0003] A Chinese patent discloses a presence-type human body sensing sensor, with the publication number CN212482709U. The technical solution disclosed in the patent document is as follows: it includes an infrared sensor probe, a bearing portion for setting the infrared sensor probe, a motor, a rotating shielding plate, and a Fresnel lens. The infrared sensor probe is set below the Fresnel lens, the motor is connected to the rotating shielding plate, and the rotating shielding plate is set between the infrared sensor probe and the Fresnel lens.

[0004] In order to solve the problem that human body detection sensors made according to the principle of life detectors are relatively expensive, the existing technology adopts a method of designing infrared sensor probes and other components to deal with it. However, the detection range cannot be adjusted. The structure can only detect from top to bottom in the vertical direction. If the user passes by from the side, the structure cannot accurately detect and process, which affects the user's use. Utility Model Content

[0005] The utility model aims to provide an embedded presence sensor to solve the problem in the prior art that the detection range cannot be adjusted.

[0006] The utility model provides the following technical solutions: an embedded presence sensor comprises an embedded sensor housing, a detection range expansion mechanism is arranged at the bottom of the embedded sensor housing, the detection range expansion mechanism comprises a receiving plate one, a protruding block is fixedly installed on the top of the receiving plate one, a rotating extension shaft is rotatably connected to the outer wall on the inner side of the protruding block, a receiving plate two is fixedly installed on the top of the rotating extension shaft, a micro air pump is fixedly installed on the top of the receiving plate one, a hollow seat is fixedly installed on the top of the receiving plate one, an output pipe of the micro air pump is fixedly connected to the outer wall of the hollow seat, a micro solenoid valve is fixedly connected to the side of the hollow seat, an elastic rubber bag is fixedly installed on the bottom of the receiving plate two, the bottom of the elastic rubber bag is fixedly connected to the top of the hollow seat, the micro air pump can inflate the elastic rubber bag, so as to cause the receiving plate two to tilt, thereby expanding the detection range of the embedded sensor housing.

[0007] As a preferred embodiment of the above technical solution, a connecting seat is fixedly installed on the top of the second receiving plate, a connecting rod is detachably connected to the inner wall of the connecting seat, and the top of the connecting rod is fixedly connected to the bottom of the embedded sensor housing.

[0008] As a preferred embodiment of the above technical solution, the detection range expansion mechanism also includes a positioning frame, a stepper motor is fixedly installed on the top of the inner wall of the positioning frame, the top of the positioning frame is rotatably connected to a rotating seat, the output shaft of the stepper motor is fixedly connected to the bottom of the rotating seat, and the stepper motor can adjust the angle of the embedded sensor housing when it works.

[0009] As a preferred embodiment of the above technical solution, an electric telescopic rod is fixedly installed on the top of the rotating seat, and the connecting plate 1 is fixedly installed on the movable end of the electric telescopic rod. The electric telescopic rod can adjust the height of the embedded sensor housing.

[0010] As a preferred embodiment of the above technical solution, torsion spring coils are detachably connected to both sides of the embedded sensor housing, and a clamping portion is fixedly connected to the end of the torsion spring coil. An end cover is movably inserted into the top of the embedded sensor housing, and an outer wall of the clamping portion is movably connected to an outer wall of the end cover. Through the design of the torsion spring coil, the clamping portion can be driven to clamp the end cover.

[0011] As a preferred embodiment of the above technical solution, a circuit board body is fixedly mounted on the inner wall of the embedded sensor housing, and a lens is fixedly mounted on the inner wall of the end cover. The design of the lens facilitates the operation of the light sensor.

[0012] As a preferred embodiment of the above technical solution, a millimeter-wave radar sensor is fixedly installed on the front side of the inner wall of the embedded sensor shell, and a light sensor is fixedly installed on the back side of the inner wall of the embedded sensor shell. The millimeter-wave radar sensor can detect the presence of a human body, and the light sensor can determine whether the environment is day or night.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can transport gas into the inner cavity of the hollow seat through the design of a micro air pump, and the gas then enters the inner cavity of the elastic rubber bag, causing the elastic rubber bag to produce elastic deformation of extension, thereby pushing the receiving plate 2 to rotate on the inner wall of the raised block with the help of a rotating extension shaft, so that the embedded sensor shell is tilted as a whole. The tilted embedded sensor shell performs detection in a large circular area. Compared with traditional sensors, it has a larger detection range and is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall exploded structure of the embedded sensor housing of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the embedded sensor housing of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the detection range expansion mechanism of the utility model;

[0019] Figure 5 It is a schematic diagram of the connection structure of the receiving plate 1 and the receiving plate 2 of the utility model.

[0020] In the figure: 1. embedded sensor housing; 11. torsion spring coil; 12. clamping part; 13. end cover; 14. lens; 15. circuit board body; 16. millimeter wave radar sensor; 17. light sensor; 2. detection range expansion mechanism; 21. positioning frame; 22. stepping motor; 23. rotating seat; 24. electric telescopic rod; 25. receiving plate 1; 251. raised block; 252. rotating extension shaft; 253. receiving plate 2; 254. micro air pump; 255. hollow seat; 256. micro solenoid valve; 257. elastic rubber bag; 26. connecting seat; 27. connecting rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figure 1and Figure 5 As shown, the utility model provides a technical solution: an embedded presence sensor, including an embedded sensor housing 1, a detection range expansion mechanism 2 is arranged at the bottom of the embedded sensor housing 1, the detection range expansion mechanism 2 includes a receiving plate 25, a protrusion block 251 is fixedly installed on the top of the receiving plate 25, a rotating extension shaft 252 is rotatably connected to the outer wall of the inner side of the protrusion block 251, a receiving plate 253 is fixedly installed on the top of the rotating extension shaft 252, a micro air pump 254 is fixedly installed on the top of the receiving plate 25, a hollow seat 255 is fixedly installed on the top of the receiving plate 25, an output pipe of the micro air pump 254 is fixedly connected to the outer wall of the hollow seat 255, a micro solenoid valve 256 is fixedly connected to the side of the hollow seat 255, An elastic rubber bag 257 is fixedly installed at the bottom of the second connecting plate 253, and the bottom of the elastic rubber bag 257 is fixedly connected to the top of the hollow seat 255. The micro air pump 254 is controlled to work, and gas can be transported to the inner cavity of the hollow seat 255 and the elastic rubber bag 257, causing the elastic rubber bag 257 to produce elastic deformation of extension, and then promote the second connecting plate 253 to rotate on the inner wall of the protruding block 251 with the help of the rotating extension shaft 252, so that the embedded sensor housing 1 is tilted as a whole, expanding the detection range, and controlling the micro solenoid valve 256 to open, which can release the gas inside the hollow seat 255 and the elastic rubber bag 257. The resetting elastic force of the elastic rubber bag 257 makes the second connecting plate 253 rotate and reset, which is convenient for users to use.

[0023] As an implementation method in this embodiment, Figure 4 and Figure 5 As shown, a connecting seat 26 is fixedly installed on the top of the receiving plate 253, and a connecting rod 27 is detachably connected to the inner wall of the connecting seat 26. The top of the connecting rod 27 is fixedly connected to the bottom of the embedded sensor housing 1. The detection range expansion mechanism 2 also includes a positioning frame 21. A stepper motor 22 is fixedly installed on the top of the inner wall of the positioning frame 21. A rotating seat 23 is rotatably connected to the top of the positioning frame 21. The output shaft of the stepper motor 22 is fixedly connected to the bottom of the rotating seat 23. An electric telescopic rod 24 is fixedly installed on the top of the rotating seat 23. The mobile end of the electric telescopic rod 24 is fixedly installed with a receiving plate 1 25. The electric telescopic rod 24 is controlled to extend, which can prompt the embedded sensor housing 1 to move out of the inside of the external embedded groove as a whole, which is convenient for tilt detection. At the same time, it can also reduce the detection height of the embedded sensor housing 1. Controlling the stepper motor 22 to work can drive the rotating seat 23 to rotate in the positioning frame 21, so as to realize the function of adjusting the detection angle of the embedded sensor housing 1.

[0024] As an implementation method in this embodiment, Figure 1-Figure 3As shown, both sides of the embedded sensor housing 1 are detachably connected with torsion spring coils 11, the ends of the torsion spring coils 11 are fixedly connected with clamping parts 12, the top of the embedded sensor housing 1 is movably plugged with end caps 13, the outer wall of the clamping part 12 is movably connected with the outer wall of the end cap 13, a circuit board body 15 is fixedly installed on the inner wall of the embedded sensor housing 1, a lens 14 is fixedly installed on the inner wall of the end cap 13, a millimeter-wave radar sensor 16 is fixedly installed on the front of the inner wall of the embedded sensor housing 1, and a light sensor 17 is fixedly installed on the back of the inner wall of the embedded sensor housing 1. The millimeter-wave radar sensor 16 is an existing structure. The structure can be selected as VDWB-150DF, the millimeter wave radar sensor 16 can detect the breathing and heartbeat of the human body, and judge the presence of the human body by the signal, the light sensor 17 is an existing structure and its model can be selected as BH1750FVI, the light sensor 17 judges whether the detection environment is day or night by the signal of light intensity, after the end cover 13 is plugged into the embedded sensor housing 1, the elastic force of the torsion spring coil 11 can drive the clamping part 12 to clamp the end cover 13, so that the user can disassemble and assemble the end cover 13 to maintain the components of the inner cavity of the embedded sensor housing 1.

[0025] Working principle: When in use, the positioning frame 21 is installed in the external embedded groove with the help of external bolts, so that the whole structure is in an inverted state, and then the human body can be sensed through the embedded sensor housing 1 as a whole. If the detection range needs to be adjusted, the electric telescopic rod 24 is first controlled to extend, which can cause the embedded sensor housing 1 to move out of the external embedded groove as a whole, and then the micro air pump 254 is controlled to work, which can deliver gas to the hollow seat 255 and the inner cavity of the elastic rubber bag 257, causing the elastic rubber bag 257 to produce elastic deformation of extension, and push the receiving plate 253 to rotate so that the embedded sensor housing 1 is tilted as a whole, thereby realizing the function of expanding the detection range.

[0026] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. An embedded presence sensor, comprising an embedded sensor housing (1), characterized in that: A detection range expansion mechanism (2) is provided at the bottom of the embedded sensor housing (1), and the detection range expansion mechanism (2) comprises a first receiving plate (25), a protruding block (251) is fixedly mounted on the top of the first receiving plate (25), a rotating extension shaft (252) is rotatably connected to the inner outer wall of the protruding block (251), a second receiving plate (253) is fixedly mounted on the top of the rotating extension shaft (252), a micro air pump (254) is fixedly mounted on the top of the first receiving plate (25), a hollow seat (255) is fixedly mounted on the top of the first receiving plate (25), an output pipe of the micro air pump (254) is fixedly connected to the outer wall of the hollow seat (255), a micro solenoid valve (256) is fixedly connected to the side of the hollow seat (255), and an elastic rubber bag (257) is fixedly mounted on the bottom of the second receiving plate (253), and the bottom of the elastic rubber bag (257) is fixedly connected to the top of the hollow seat (255).

2. The embedded presence sensor according to claim 1, characterized in that: A connecting seat (26) is fixedly mounted on the top of the second receiving plate (253), a connecting rod (27) is detachably connected to the inner wall of the connecting seat (26), and the top of the connecting rod (27) is fixedly connected to the bottom of the embedded sensor housing (1).

3. The embedded presence sensor according to claim 1, characterized in that: The detection range expansion mechanism (2) further comprises a positioning frame (21), a stepper motor (22) being fixedly mounted on the top of the inner wall of the positioning frame (21), a rotating seat (23) being rotatably connected to the top of the positioning frame (21), and an output shaft of the stepper motor (22) being fixedly connected to the bottom of the rotating seat (23).

4. The embedded presence sensor according to claim 3, characterized in that: An electric telescopic rod (24) is fixedly mounted on the top of the rotating seat (23), and the first receiving plate (25) is fixedly mounted on the movable end of the electric telescopic rod (24).

5. The embedded presence sensor according to claim 1, characterized in that: Torsion spring coils (11) are detachably connected to both sides of the embedded sensor housing (1), a clamping portion (12) is fixedly connected to the end of the torsion spring coil (11), an end cover (13) is movably inserted into the top of the embedded sensor housing (1), and an outer wall of the clamping portion (12) is movably connected to an outer wall of the end cover (13).

6. The embedded presence sensor according to claim 5, characterized in that: A circuit board body (15) is fixedly mounted on the inner wall of the embedded sensor housing (1), and a lens (14) is fixedly mounted on the inner wall of the end cover (13).

7. The embedded presence sensor according to claim 1, characterized in that: A millimeter wave radar sensor (16) is fixedly mounted on the front side of the inner wall of the embedded sensor housing (1), and a light sensor (17) is fixedly mounted on the back side of the inner wall of the embedded sensor housing (1).

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