Human body existence induction detection device based on Doppler radar

Abstract

The utility model discloses a human body existence induction detection device based on Doppler radar, which comprises a mounting plate, the top of the mounting plate is fixedly connected with a box body, the top of the box body is provided with a Doppler radar sensor, and the rear end of the inner surface of the Doppler radar sensor is fixedly provided with a filter. An L-shaped plate is fixedly connected to the rear end of the top of the mounting plate, and shells are fixedly connected to the two sides of the lower surface of the L-shaped plate. The second motor and the protective shell are arranged above the Doppler radar sensor, the second motor drives the transmission rod to rotate, the transmission rod drives the transmission wheel to rotate, the transmission wheel drives the protective shell to move downwards through the adjusting belt, the Doppler radar sensor can be covered and protected, the Doppler radar sensor is prevented from being damaged, and the service life of the Doppler radar sensor is effectively prolonged. The filter is arranged in the Doppler radar sensor, so that the Doppler radar sensor can resist interference, and the use effect of the Doppler radar sensor is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Doppler radar sensors, in particular to a human presence induction detection device based on a Doppler radar. Background Technique

[0002] With the development of the Internet of Things technology, various Internet of Things devices are becoming more and more popular. In order to improve the intelligence level of various devices, various sensors need to be provided for intelligent devices. The Doppler radar sensor is one of them. It can enable intelligent devices to detect human body movement, micro-movement, and even breathing and heart rate signals in a certain space to accurately judge whether there is someone in the space. The Doppler radar sensor is widely used in energy-saving lighting, smart home, security monitoring and other fields because of its advantages such as good penetrability and not being affected by the external environment temperature.

[0003] At present, the existing Doppler radar sensors do not have a protection function. When the Doppler radar sensors are exposed and used, they are easily affected by the outside world, and at the same time, the outside world will damage the Doppler radar sensors, thus shortening the service life of the Doppler radar sensors. For this reason, we propose a human presence induction detection device based on a Doppler radar. Content of the Utility Model

[0004] The purpose of the utility model is to provide a human presence induction detection device based on a Doppler radar, which has the advantage of good protection effect, and solves the problems that the existing Doppler radar sensors do not have a protection function, the Doppler radar sensors are easily affected by the outside world when exposed and used, and at the same time, the outside world will damage the Doppler radar sensors, thus shortening the service life of the Doppler radar sensors.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A human presence induction detection device based on a Doppler radar, including a mounting plate, a box body is fixedly connected to the top of the mounting plate, a Doppler radar sensor is arranged on the top of the box body, a filter is fixedly installed at the rear end of the inner surface of the Doppler radar sensor, an L-shaped plate is fixedly connected to the rear end of the top of the mounting plate, shells are fixedly connected to both sides of the lower surface of the L-shaped plate, a second motor is fixedly connected to the rear end of the inner cavity of the shell, a transmission rod is fixedly connected to the output end of the second motor, a transmission wheel is fixedly connected to the outer surface of the second motor, an adjusting belt is movably connected to the outer surface of the transmission wheel, and a protective shell is fixedly connected to the bottom of the adjusting belt.

[0006] As a preferred solution, mounting holes are opened on the periphery of the surface of the mounting plate, and the diameters of the mounting holes are the same.

[0007] As a preferred solution, first motors are fixedly connected to both sides of the inner cavity of the box body. The output end of the first motor is fixedly connected to a screw rod, and a screw plate is threadedly connected to the outer surface of the screw rod.

[0008] As a preferred solution, a guide block is fixedly connected to the bottom of the screw plate. Guide rails are fixedly connected to both sides of the bottom of the inner cavity of the box body. The outer surface of the guide block is slidably connected to the inner surface of the guide rail.

[0009] As a preferred solution, a bearing is arranged inside the screw rod, and a protective sleeve is arranged on the outer surface of the bearing.

[0010] As a preferred solution, an observation window is arranged at the front end of the protective shell, and a transparent protection plate is arranged on the surface of the observation window.

[0011] As a preferred solution, a heat dissipation port is opened at the rear end of the bottom of the shell, and a dust-proof net is arranged on the inner surface of the heat dissipation port.

[0012] As a preferred solution, through slots are opened on both sides of the top of the box body, and the width of the through slots is greater than the width of the screw plate.

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

[0014] 1. By arranging a second motor and a protective shell above the Doppler radar sensor in the present utility model, the second motor drives the transmission rod to rotate, the transmission rod drives the transmission wheel to rotate, and the transmission wheel drives the protective shell to move downward through the adjustment belt, so as to cover and protect the Doppler radar sensor to prevent it from being damaged, effectively improving its service life. By arranging a filter inside the Doppler radar sensor, anti-interference can be carried out on the Doppler radar sensor, effectively improving its use effect.

[0015] 2. By arranging first motors on both sides of the Doppler radar sensor in the present utility model, the first motors drive the screw rods to rotate, and the screw rods drive the screw plates to move outward to cancel the fixation of the Doppler radar sensor, so as to facilitate the removal of the Doppler radar sensor for maintenance. Description of the Drawings

[0016] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0017] Figure 2 is a sectional view of the box body structure of the present utility model;

[0018] Figure 3 is a sectional view of the shell structure of the present utility model;

[0019] Figure 4 is a sectional view of the partial structure of the Doppler radar sensor of the present utility model.

[0020] In the figure: 1, mounting plate; 2, box body; 3, Doppler radar sensor; 4, screw plate; 5, mounting hole; 6, L-shaped plate; 7, protective shell; 8, adjusting belt; 9, housing; 10, first motor; 11, screw rod; 12, guide block; 13, guide rail; 14, transmission wheel; 15, transmission rod; 16, second motor; 17, heat dissipation port; 18, filter; 19, bearing. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0022] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation mode of the present invention. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0023] Embodiment 1:

[0024] Please refer to Figures 1-4 As shown, the present invention provides a human presence induction detection device based on Doppler radar, including a mounting plate 1. The top of the mounting plate 1 is fixedly connected with a box body 2. The top of the box body 2 is provided with a Doppler radar sensor 3. A filter 18 is fixedly installed at the rear end of the inner surface of the Doppler radar sensor 3. The rear end of the top of the mounting plate 1 is fixedly connected with an L-shaped plate 6. Both sides of the lower surface of the L-shaped plate 6 are fixedly connected with a housing 9. The rear end of the inner cavity of the housing 9 is fixedly connected with a second motor 16. The output end of the second motor 16 is fixedly connected with a transmission rod 15. The outer surface of the second motor 16 is fixedly connected with a transmission wheel 14. The outer surface of the transmission wheel 14 is movably connected with an adjusting belt 8. The bottom of the adjusting belt 8 is fixedly connected with a protective shell 7.

[0025] In this technical solution, the second motor 16 and the protective shell 7 are applied. The second motor 16 drives the transmission rod 15 to rotate. The transmission rod 15 drives the transmission wheel 14 to rotate. The transmission wheel 14 drives the protective shell 7 to move downward through the adjusting belt 8, so as to cover the Doppler radar sensor 3 for protection, prevent it from being damaged, and effectively improve its service life. By arranging the filter 18 in the Doppler radar sensor 3, the Doppler radar sensor 3 can be anti-interfered, and its use effect is effectively improved.

[0026] Embodiment 2:

[0027] Based on the first embodiment, the present utility model is as follows Figures 1-3 As shown, mounting holes 5 are provided around the surface of the mounting plate 1, and the diameters of the mounting holes 5 are the same. On both sides of the inner cavity of the box body 2, a first motor 10 is fixedly connected. The output end of the first motor 10 is fixedly connected with a screw rod 11. A screw plate 4 is threadedly connected to the outer surface of the screw rod 11. The bottom of the screw plate 4 is fixedly connected with a guide block 12. On both sides of the bottom of the inner cavity of the box body 2, a guide rail 13 is fixedly connected. The outer surface of the guide block 12 is slidably connected with the inner surface of the guide rail 13. A bearing 19 is arranged inside the screw rod 11, and a protective sleeve is arranged on the outer surface of the bearing 19.

[0028] With the above technical solution, through the provided mounting holes 5, the Doppler radar sensor 3 can be conveniently installed at the required position. Through the provided first motor 10, screw rod 11 and screw plate 4, the first motor 10 drives the screw rod 11 to rotate, and the screw rod 11 drives the screw plate 4 to move outward to cancel the fixation of the Doppler radar sensor 3, so that the Doppler radar sensor 3 can be conveniently removed for maintenance. Through the provided guide block 12 and guide rail 13, the screw plate 4 can move more stably left and right. Through the provided bearing 19, the screw rod 11 can rotate more stably. Through the provided protective sleeve, the bearing 19 can be protected.

[0029] Embodiment Three:

[0030] The present utility model is as follows Figures 1-4 As shown, an observation window is provided at the front end of the protective shell 7, and a transparent protective plate is provided on the surface of the observation window. A heat dissipation port 17 is opened at the rear end of the bottom of the shell 9, and a dust-proof net is provided on the inner surface of the heat dissipation port 17. Through grooves are opened on both sides of the top of the box body 2, and the width of the through grooves is greater than the width of the screw plate 4.

[0031] With the above technical solution, through the provided observation window, it is convenient to view. Through the provided transparent protective plate, protection can be carried out. Through the opened heat dissipation port 17, the heat dissipation performance of the shell 9 can be improved. Through the provided dust-proof net, dust can be prevented from entering the shell 9 through the heat dissipation port 17. Through the opened through grooves, it is convenient to drive the screw plate 4 to move left and right.

[0032] The working principle of the present utility model is as follows: First, the Doppler radar sensor 3 can be installed at the required position through the mounting hole 5. Then, the second motor 16 is turned on through an external controller. The second motor 16 drives the transmission rod 15 to rotate, and the transmission rod 15 drives the transmission wheel 14 to rotate. The transmission wheel 14 drives the protective housing 7 to move downward through the adjustment belt 8, and the Doppler radar sensor 3 can be covered for protection. The working condition can be viewed through the observation window. Turning the second motor 16 in reverse can drive the protective housing 7 to cancel the protection. Then, the first motor 10 is turned on through an external controller. The first motor 10 drives the screw rod 11 to rotate, and the screw rod 11 drives the screw plate 4 to move outward to cancel the fixation of the Doppler radar sensor 3, so that the Doppler radar sensor 3 can be conveniently removed for maintenance. By arranging a filter 18 in the Doppler radar sensor 3, the Doppler radar sensor 3 can be anti-interference, effectively improving its use effect.

[0033] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are only illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various components, and parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0034] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present utility model, or those features that are not relevant to the implementation of the present utility model).

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A Doppler radar-based human presence sensing detection device, comprising a mounting plate (1), characterized in that: The top of the mounting plate (1) is fixedly connected to a box body (2), a Doppler radar sensor (3) is arranged on the top of the box body (2), a filter (18) is fixedly installed on the rear end of the inner surface of the Doppler radar sensor (3), the rear end of the top of the mounting plate (1) is fixedly connected to an L-shaped plate (6), both sides of the lower surface of the L-shaped plate (6) are fixedly connected to a shell (9), the rear end of the inner cavity of the shell (9) is fixedly connected to a second motor (16), the output end of the second motor (16) is fixedly connected to a transmission rod (15), the outer surface of the second motor (16) is fixedly connected to a transmission wheel (14), the outer surface of the transmission wheel (14) is movably connected to an adjustment belt (8), and the bottom of the adjustment belt (8) is fixedly connected to a protective shell (7).

2. The human presence sensing detection device based on Doppler radar according to claim 1, characterized in that: The mounting plate (1) is provided with mounting holes (5) on all four sides of its surface, and the mounting holes (5) have the same diameter.

3. The human presence sensing detection device based on Doppler radar according to claim 1, characterized in that: A first motor (10) is fixedly connected to both sides of the inner cavity of the box body (2); a screw rod (11) is fixedly connected to the output end of the first motor (10); and a screw plate (4) is threadedly connected to the outer surface of the screw rod (11).

4. The human presence sensing detection device based on Doppler radar according to claim 3, characterized in that: A guide block (12) is fixedly connected to the bottom of the screw plate (4), guide rails (13) are fixedly connected to both sides of the bottom of the inner cavity of the box body (2), and the outer surface of the guide block (12) is slidably connected to the inner surface of the guide rail (13).

5. The human presence sensing detection device based on Doppler radar according to claim 3, characterized in that: A bearing (19) is provided on the inner side of the screw rod (11), and a protective sleeve is provided on the outer surface of the bearing (19).

6. The human presence sensing detection device based on Doppler radar according to claim 1, characterized in that: The front end of the protective shell (7) is provided with an observation window, and the surface of the observation window is provided with a transparent protective plate.

7. The human presence sensing detection device based on Doppler radar according to claim 1, characterized in that: A heat dissipation opening (17) is provided at the rear end of the bottom of the shell (9), and a dustproof net is provided on the inner surface of the heat dissipation opening (17).

8. The human presence sensing detection device based on Doppler radar according to claim 3, characterized in that: Through slots are provided on both sides of the top of the box body (2), and the width of the through slots is greater than the width of the screw plate (4).

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