Intelligent sensor

Abstract

The utility model relates to an intelligent sensor, which comprises a shell, a mounting frame is arranged outside the shell, a mounting groove is formed in the shell, and two support frames for mounting a circuit board are symmetrically arranged in the mounting groove; the two sides of the circuit board are fixedly connected with the supporting frame, and a chip used for processing sensor signals is arranged on the side wall of the circuit board; the infrared sensor is fixedly connected to the side, away from the chip, of the circuit board. The utility model relates to the technical field of sensors. According to the intelligent sensor, through arrangement of the millimeter wave radar assembly, secondary confirmation can be carried out on the infrared source point after the infrared sensor sends out a signal, false alarm of the infrared sensor is avoided, the detection precision of the intelligent sensor can be effectively improved, the detection effect of the intelligent sensor is better, and the practicability of the intelligent sensor is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to an intelligent sensor. Background Art

[0002] Smart sensors are devices that combine multiple technologies, including sensors, microprocessors, and communication modules. They can sense environmental information, process and analyze data, and transmit and communicate with other devices via networks. They are widely used in the Internet of Things, smart homes, industrial automation, environmental monitoring, healthcare, and other fields. By working in conjunction with other devices, smart sensors enable more efficient and intelligent management and services.

[0003] In the existing technology, human body sensors are one of the most commonly used components in smart homes and are also the most difficult components to deploy. Currently, the principle of most human body sensors on the market is the pyroelectric effect. They detect changes in infrared rays caused by human movement. Objects or creatures with close body temperature, such as pets such as cats and dogs, radiators, car lights, etc., can also mistakenly trigger human body sensors. As a result, if the sensitivity of the human body sensor is high, it is easy to cause false alarms, and if the sensitivity is low, it will affect normal use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an intelligent sensor to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] The intelligent sensor comprises a housing, a mounting frame is arranged outside the housing, a mounting slot is opened inside the housing, and two supporting frames for mounting a circuit board are symmetrically arranged in the mounting slot;

[0007] A circuit board, with both sides of the circuit board fixedly connected to the support frame, and a chip for processing sensor signals provided on the sidewall of the circuit board;

[0008] The infrared sensor is fixedly connected to the side of the circuit board facing away from the chip;

[0009] The millimeter-wave radar assembly consists of a millimeter-wave radar sensor, a turntable and a driver. The turntable is rotatably arranged on the top of the shell, the millimeter-wave radar sensor is embedded in the outer wall of the turntable, and the bottom of the turntable is connected to the inner wall of the shell through a driving assembly.

[0010] Furthermore, a signal window is provided on a side of the outer wall of the shell close to the infrared sensor, and a protective shell with a wall thickness smaller than that of the shell is fixedly connected to the signal window.

[0011] Furthermore, the drive assembly includes a motor and a gear, the bottom protrusion of the turntable forms an annular portion that fits against the inner wall of the shell, the bottom edge of the annular portion is fixedly connected to the motor, the output shaft of the motor is fixedly connected to the gear, and the inner wall of the shell is provided with a tooth groove that meshes with the gear.

[0012] Furthermore, a limit block is fixedly connected to a side of the outer wall of the annular portion close to the millimeter wave radar sensor, and the limit block is arranged in the signal window. The limit block, the center of the annular portion and the motor are on the same straight line.

[0013] Furthermore, the mounting frame includes a connecting rod, a ball sleeve and a mounting seat. The connecting rod is fixedly connected to the outer side wall of the shell. The end of the connecting rod is provided with a ball head and is sleeved with a ball sleeve. The side of the ball sleeve away from the connecting rod is fixedly connected to the mounting seat.

[0014] Furthermore, a gap is left between the ball head and the ball sleeve, and the gap is filled with damping oil. A rubber gasket in contact with the surface of the ball head is fixedly connected to the opening of the ball sleeve.

[0015] In summary, the present invention has at least one of the following beneficial technical effects:

[0016] 1. The intelligent sensor, through the millimeter-wave radar component, can perform a secondary confirmation of the infrared source point after the infrared sensor sends a signal, avoiding false alarms from the infrared sensor, effectively improving the detection accuracy of the intelligent sensor, making the intelligent sensor detection effect better, and greatly improving the practicality of the intelligent sensor;

[0017] 2. The smart sensor, through the provided mounting bracket, can freely adjust the scanning angle after the smart sensor is fixed, so that the detection area of ​​the smart sensor can be freely adjusted according to needs, thereby making the application scenarios of the smart sensor wider and further improving the practicality of the smart sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of the intelligent sensor of the present utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the intelligent sensor of the present utility model.

[0021] Figure 3This is another perspective of the internal structure diagram of the intelligent sensor of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of the millimeter wave radar component in the intelligent sensor of the present utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the support frame in the intelligent sensor of the present utility model.

[0024] In the figure, 1. Shell; 2. Circuit board; 3. Infrared sensor; 4. Millimeter-wave radar assembly; 41. Millimeter-wave radar sensor; 42. Turntable; 43. Driver; 431. Motor; 432. Gear; 5. Mounting bracket; 51. Connecting rod; 52. Ball sleeve; 53. Mounting seat; 6. Mounting slot; 7. Support bracket; 8. Signal window; 9. Protective shell; 10. Ring portion; 11. Tooth groove; 12. Limit block; 13. Ball head; 14. Rubber gasket. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Reference Figure 1 - Figure 5 The intelligent sensor disclosed in the utility model includes a housing 1, a mounting frame 5 is provided outside the housing 1, a mounting groove 6 is provided inside the housing 1, and two support frames 7 for mounting a circuit board 2 are symmetrically provided in the mounting groove 6;

[0028] Circuit board 2, both sides of the circuit board 2 are fixedly connected to the support frame 7, and the side walls of the circuit board 2 are provided with a chip for processing sensor signals;

[0029] The infrared sensor 3 is fixedly connected to the side of the circuit board 2 facing away from the chip;

[0030] The millimeter-wave radar assembly 4 consists of a millimeter-wave radar sensor 41, a turntable 42 and a driver 43. The turntable 42 is rotatably set on the top of the shell 1, and the millimeter-wave radar sensor 41 is embedded in the outer wall of the turntable 42. The bottom of the turntable 42 is connected to the inner wall of the shell 1 through a driving assembly.

[0031] In this embodiment, therefore, the Figure 1 - Figure 3 It can be found that an installation groove 6 is opened in the shell 1, and two support frames 7 for installing the circuit board 2 are symmetrically arranged at the bottom of the installation groove 6. It can be used to install the circuit board 2 for processing sensor signals in the shell 1, so that when the sensor sends a signal, the signal can be efficiently analyzed through the circuit board 2, which is used to link the smart sensor with the smart home.

[0032] By fixing an infrared sensor 3 on one side of the circuit board 2, the infrared sensor 3 can be used to capture the signal emitted by the human body when the human body passes by the smart sensor, so as to detect the movement of the human body and thus control the linkage of the smart home.

[0033] Since the principle of most human body sensors on the market is the pyroelectric effect, it detects the changes in infrared rays caused by human movement. Objects or creatures with a temperature close to that of the human body, such as pets such as cats and dogs, radiators, car lights, etc., can also falsely trigger human body sensors. Figure 2 and Figure 4 It can be found that a turntable 42 is rotatably provided on the top of the shell 1, and a millimeter-wave radar sensor 41 is embedded in the outer wall of the turntable 42. When the infrared sensor 3 detects that a human body is moving, the driver 43 pushes the turntable 42 to rotate, so that the millimeter-wave radar sensor 41 captures the specific position of the human body, which can be used to locate the human body. At the same time, it can also avoid false alarms of the infrared sensor 3, thereby effectively improving the monitoring accuracy of the smart sensor and effectively improving the practicality of the smart sensor.

[0034] To sum up, when using the smart sensor, first fix the shell 1 through the mounting bracket 5, and then adjust the shell 1 to a suitable angle so that the infrared sensor 3 in the shell 1 continuously monitors the surrounding environment. After receiving the infrared signal, the infrared sensor 3 sends a signal to the circuit board 2, and then the circuit board 2 controls the driver 43 to push the turntable 42 to rotate and adjust the position of the millimeter-wave radar sensor 41. The millimeter-wave radar sensor 41 is used to perform a second confirmation on the area where the infrared sensor 3 receives the signal. If the human body is not scanned, the circuit board 2 will not send a signal to control the smart home linkage. If the human body is scanned, the monitoring accuracy of the smart sensor can be accurately improved through double confirmation, thereby effectively improving the practicality of the smart sensor.

[0035] Since the driver 43 will track the infrared source under the feedback of the infrared sensor 3, when a human body passes through the monitoring area of ​​the smart sensor, the monitoring area of ​​the millimeter-wave radar sensor 41 will stay at the place where the person disappears. Then, when the person returns, the millimeter-wave radar sensor 41 will first detect the human body feedback, and then directly send a signal to the circuit board 2, so that the circuit board 2 can be linked to the smart home in the room, which can improve the sensitivity of the smart sensor to a certain extent and further improve the practicality of the smart sensor.

[0036] In a further preferred embodiment of the present invention, Figure 1 - Figure 3 As shown, a signal window 8 is provided on the side of the outer wall of the housing 1 close to the infrared sensor 3 , and a protective shell 9 with a wall thickness smaller than that of the housing 1 is fixedly connected to the signal window 8 .

[0037] In this embodiment, by providing a signal window 8 on the side of the housing 1 close to the infrared sensor 3, the blocking of the infrared source by the housing 1 can be reduced, thereby improving the accuracy of the infrared sensor 3 and enhancing the sensitivity of the smart sensor.

[0038] By providing a protective shell 9 with a wall thickness smaller than that of the housing 1 , the components in the housing 1 can be protected while minimizing interference with the infrared source, thereby effectively increasing the service life of the smart sensor.

[0039] In a further preferred embodiment of the present invention, Figure 2 - Figure 4 As shown, the drive assembly includes a motor 431 and a gear 432. The bottom protrusion of the turntable 42 is formed with an annular portion 10 that fits against the inner wall of the housing 1. The motor 431 is fixedly connected to the bottom edge of the annular portion 10. The output shaft of the motor 431 is fixedly connected to the gear 432. The inner wall of the housing 1 is provided with a tooth groove 11 that meshes with the gear 432.

[0040] The outer wall of the annular portion 10 is fixedly connected to a limit block 12 on one side close to the millimeter wave radar sensor 41. The limit block 12 is arranged in the signal window 8. The center of the limit block 12, the annular portion 10 and the motor 431 are on the same straight line.

[0041] In this embodiment, by setting up the motor 431 and gear 432, when the infrared sensor 3 detects an infrared source, the circuit board 2 controls the motor 431 to drive the gear 432 to rotate, so that the gear 432 moves along the tooth groove 11, thereby rotating the turntable 42, thereby adjusting the directional monitoring area of ​​the millimeter-wave radar sensor 41, and effectively improving the positioning speed of the millimeter-wave radar sensor 41, thereby improving the feedback sensitivity of the intelligent sensor.

[0042] By connecting a limit block 12 to the side of the annular portion 10 near the millimeter-wave radar sensor 41 and positioning the limit block 12 within the signal window 8, the scanning range of the millimeter-wave radar sensor 41 can be aligned with the coverage range of the infrared sensor 3, preventing meaningless rotation of the millimeter-wave radar sensor 41 and effectively improving the practicality of the millimeter-wave radar sensor 41. Furthermore, by aligning the center of the limit block 12, the annular portion 10, and the motor 431, the motor 431 is always located on the opposite side of the limit block 12, preventing the gear 432 from entering the signal window 8 and causing the driver 43 to malfunction, effectively ensuring the rotational stability of the turntable 42.

[0043] In a further preferred embodiment of the present invention, Figure 3 and Figure 5As shown, the mounting frame 5 includes a connecting rod 51, a ball sleeve 52 and a mounting seat 53. The connecting rod 51 is fixedly connected to the outer wall of the housing 1. The end of the connecting rod 51 is provided with a ball head 13 and is sleeved with the ball sleeve 52. The side of the ball sleeve 52 away from the connecting rod 51 is fixedly connected to the mounting seat 53.

[0044] A gap is left between the ball head 13 and the ball sleeve 52 , and the gap is filled with damping oil. A rubber gasket 14 in contact with the surface of the ball head 13 is fixedly connected to the opening of the ball sleeve 52 .

[0045] In this embodiment, the housing 1 can be fixedly connected to the wall by the mounting base 53, which is convenient for the installation of the smart sensor. However, since the coverage range of the smart sensor varies according to its installation height, the housing 1 needs to adjust the scanning angle according to the installation position to ensure the operation stability of the smart sensor. Figure 5 It can be found that a ball head 13 is provided at the end of the connecting rod 51, and a ball sleeve 52 for connecting the ball head 13 is fixedly provided on the mounting seat 53, so that the scanning angle can be freely adjusted after the smart sensor is fixed, thereby improving the practicality of the smart sensor.

[0046] Since the housing 1 and the components inside the housing 1 have weight, the connecting rod 51 will rotate with the ball head 13 in the ball sleeve 52 under the action of gravity, affecting the stability of the smart sensor. Figure 5 It can be found that a gap is left between the ball head 13 and the ball sleeve 52, and the gap is filled with high-viscosity damping oil. When the ball head 13 is pressed down and rotated by the weight of the shell 1, it is blocked by the damping oil, providing a supporting effect for the shell 1, making the use of the smart sensor more stable.

[0047] Since the existence of the gap may cause leakage of the damping oil, a rubber gasket 14 in contact with the surface of the ball head 13 is fixedly connected to the opening of the ball sleeve 52 to prevent leakage of the damping oil and effectively ensure the support stability of the mounting frame 5.

[0048] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. Smart sensor, characterized in that, The invention comprises a housing (1), a mounting frame (5) is provided outside the housing (1), a mounting groove (6) is provided inside the housing (1), and two support frames (7) for mounting a circuit board (2) are symmetrically provided in the mounting groove (6); A circuit board (2), both sides of the circuit board (2) are fixedly connected to the support frame (7), and a chip for processing sensor signals is provided on the side wall of the circuit board (2); an infrared sensor (3) fixedly connected to a side of the circuit board (2) facing away from the chip; The millimeter wave radar assembly (4) is composed of a millimeter wave radar sensor (41), a turntable (42) and a driver (43). The turntable (42) is rotatably arranged on the top of the housing (1). The outer wall of the turntable (42) is embedded with the millimeter wave radar sensor (41). The bottom of the turntable (42) is connected to the inner wall of the housing (1) through the driving assembly.

2. The smart sensor according to claim 1, characterized in that A signal window (8) is provided on the side of the outer wall of the housing (1) close to the infrared sensor (3), and a protective shell (9) having a wall thickness less than that of the housing (1) is fixedly connected to the signal window (8).

3. The smart sensor according to claim 2, characterized in that The driving assembly comprises a motor (431) and a gear (432); a bottom protrusion of the turntable (42) is formed with an annular portion (10) that is in contact with the inner wall of the housing (1); a motor (431) is fixedly connected to the bottom edge of the annular portion (10); an output shaft of the motor (431) is fixedly connected to the gear (432); and a tooth groove (11) that meshes with the gear (432) is formed on the inner side wall of the housing (1).

4. The smart sensor according to claim 3, characterized in that A limiting block (12) is fixedly connected to a side of the outer wall of the annular portion (10) close to the millimeter-wave radar sensor (41), and the limiting block (12) is arranged in the signal window (8). The center of the limiting block (12), the annular portion (10) and the motor (431) are on the same straight line.

5. The smart sensor according to claim 1, characterized in that The mounting frame (5) comprises a connecting rod (51), a ball sleeve (52) and a mounting seat (53); the connecting rod (51) is fixedly connected to the outer side wall of the housing (1); a ball head (13) is provided at the end of the connecting rod (51) and is sleeved with the ball sleeve (52); and the mounting seat (53) is fixedly connected to the side of the ball sleeve (52) away from the connecting rod (51).

6. The smart sensor according to claim 5, characterized in that A gap is left between the ball head (13) and the ball sleeve (52), and the gap is filled with damping oil. A rubber gasket (14) in contact with the surface of the ball head (13) is fixedly connected to the opening of the ball sleeve (52).

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