CN219871781U - Personnel detection device in public latrine based on millimeter wave radar - Google Patents

Abstract

The utility model discloses a public toilet personnel detection device based on millimeter wave radar, which comprises a base and an outer cover covered on the base, wherein a control circuit board and a millimeter wave radar chip are arranged in a cavity formed by the base and the outer cover after the cover is covered, a chip mounting seat for mounting the millimeter wave radar chip and a plugboard frame for fixing the control circuit board are respectively arranged on the base, the chip mounting seat comprises a chip mounting plate and a fixed ear seat arranged on the upper surface of the base, a connecting hole is formed in the fixed ear seat, a connecting shaft is arranged on the chip mounting plate, the connecting shaft is arranged in the connecting hole, and the chip mounting plate can rotate relative to the fixed ear seat by taking the connecting shaft as a shaft; one side of the chip mounting plate is also provided with an angle limiting component for limiting and locking the rotation angle of the chip mounting plate. The detection device provided by the utility model is used for detecting the existence of personnel in the public toilet based on millimeter radar waves, and the detection accuracy and stability of the whole device are better.

Description

Personnel detection device in public latrine based on millimeter wave radar

Technical Field

The utility model relates to the technical field of intelligent public toilets, in particular to a public toilet personnel detection device based on millimeter wave radar.

Background

In our daily lives, there are numerous public facilities, among which public toilets are a class with a large base, which operate without a series of infrastructure guarantees. With the gradual development of cities and the proposal of the concept of smart cities, a smart public toilet is used as a ring of smart cities, and more smart public toilets are appeared at street tails. The intelligent public toilet realizes interaction between people and things based on the internet of things, and people can know the condition of the public toilet by using terminal equipment such as mobile phones or computers.

At present, the intelligent public toilet is generally provided with monitoring equipment in the toilet to realize monitoring and detection on the internal condition of the public toilet, and comprises information such as whether people exist in the public toilet, the quantity of the people flow, the occupation condition of squatting position and the like, so that the operation of equipment or devices in the public toilet is controlled in a linkage mode according to the information. However, current monitoring devices, such as infrared sensors or cameras, are easily interfered by external environments, so that the monitoring effect is not good.

Disclosure of Invention

In order to overcome the problems and defects in the prior art, the utility model aims to provide a public toilet personnel detection device based on millimeter wave radar, which has good environmental applicability and higher accuracy and stability.

In order to achieve the above object, the present utility model has the following technical scheme:

the public toilet personnel detection device based on the millimeter wave radar comprises a base, an outer cover covered on the base, a control circuit board and a millimeter wave radar chip, wherein the control circuit board and the millimeter wave radar chip are contained in a cavity formed by the base and the outer cover after the base and the outer cover are covered, and a chip mounting seat for mounting the millimeter wave radar chip and a plug board frame for fixing the control circuit board are respectively arranged on the upper surface of the base; the chip mounting seat comprises a chip mounting plate and a fixed ear seat arranged on the upper surface of the base, a connecting hole is formed in the fixed ear seat, a connecting shaft is arranged on the chip mounting plate, the connecting shaft is arranged in the connecting hole, the chip mounting plate can rotate relative to the fixed ear seat by taking the connecting shaft as an axis, a chip placing groove is formed in the chip mounting plate, and a first opening for a wiring of the millimeter wave radar chip to pass through is formed in the chip placing groove; the upper surface of base still is provided with the spacing subassembly of angle that is used for restricting and locking chip mounting panel turned angle.

Preferably, the angle limiting assembly comprises a stop disc and a stop rod, the stop disc is arranged on one side of the chip mounting plate, the stop rod is arranged on one side of the stop disc, the bottom of the stop rod is fixed on the upper surface of the base, the end of the stop rod is a free end, a limiting convex point is arranged at the end of the stop rod, and a plurality of limiting grooves matched with the limiting convex point are formed in the stop disc.

Preferably, the plugboard frame comprises a first upright and a second upright which are oppositely arranged, a first slot is formed in the first upright, a second slot is formed in the second upright, the two slots are oppositely arranged, an inlet is formed in each slot, and the inlet is located on the top surface of the upright and communicated with the slot.

Preferably, the base is provided with a second opening through which the wiring of the control circuit board passes.

Preferably, a wiring groove is formed in the lower surface of the base, and the wiring groove is communicated with the second opening.

Preferably, the base is provided with a fixing hole through which the fixing screw passes.

The utility model has the beneficial effects that:

(1) The detection device of the utility model uses the millimeter wave radar to detect whether personnel exist in the public toilet, and the millimeter wave radar is not easy to be interfered by external environment, and has the characteristics of all weather and all-day time, so the detection accuracy and the stability of the whole device are better.

(2) According to the utility model, the mounting seat of the millimeter wave radar chip can rotate in the vertical plane, so that the angle of the millimeter wave radar chip is adjusted, and finally, the effect of changing the detection scanning range of the millimeter wave radar chip is realized. For different detection environments and different detection requirements, detection in different scanning ranges can be realized only by adjusting the angle of the millimeter wave radar chip, and the device has good universality and strong environmental adaptability.

(3) The plugboard frame has unique structural design, provides convenience for the fixed installation of the control circuit board, does not need to fix the control circuit board by adopting a screw and other modes, and can effectively reduce the installation difficulty and the installation time of the control circuit board.

(4) In the utility model, the wiring groove communicated with the second opening is arranged on the lower surface of the base, and the wiring groove can be used for regularly and integrally laying the wiring of the control circuit board coming out of the second opening in the groove, so that the wiring is convenient to be regular and the wiring is convenient to use.

Drawings

The foregoing and the following detailed description of the utility model will become more apparent when read in conjunction with the following drawings in which:

FIG. 1 is an axial side view of the overall structure of the detection device of the present utility model;

FIG. 2 is an isometric view of the internal structure of the detection device of the present utility model;

FIG. 3 is a side view of the internal structure of the detection device of the present utility model;

FIG. 4 is a top view showing the internal structure of the detecting unit according to the present utility model;

FIG. 5 is a bottom view of the overall structure of the detection device of the present utility model;

fig. 6 is a schematic diagram of a chip mounting board according to the present utility model.

In the figure:

1. a base; 2. an outer cover; 3. a control circuit board; 4. a chip mounting base; 5. a plug board rack; 6. a first opening; 7. an angle limiting assembly; 9. a limit groove; 10. a second opening; 11. wiring grooves; 12. a fixing hole; 41. a chip mounting board; 42. fixing the ear seat; 43. a chip placement groove; 51. a first upright; 52. a second upright; 53. a first slot; 54. a second slot; 71. a stopper plate; 72. a stop lever.

Detailed Description

The technical solution for achieving the object of the present utility model will be further described with reference to several specific examples, but it should be noted that the technical solution claimed in the present utility model includes but is not limited to the following examples.

Example 1

At present, the intelligent public toilet is generally provided with monitoring equipment in the toilet for realizing monitoring and detection of the internal condition of the public toilet, including whether people exist in the public toilet, the amount of the flow of the people, the occupation condition of the squatting position and other information, so that the operation of equipment or devices in the public toilet is controlled in a linkage mode according to the information. However, current monitoring devices, such as infrared sensors or cameras, are susceptible to interference from the external environment, resulting in undesirable monitoring effects.

Based on the above, the embodiment of the utility model provides the public toilet personnel detection device based on the millimeter wave radar, and the detection device is used for detecting whether personnel exist in the public toilet or not based on the millimeter wave radar.

The embodiment discloses personnel detection device in public latrine based on millimeter wave radar, refer to description figure 1-figure 3 and figure 6, detection device includes base 1 and cover 2 of closing on base 1, and base 1 and cover 2 cover form inside hollow cavity structure after closing, hold millimeter wave radar chip and control circuit board 3 in the cavity, be provided with the radar antenna on the millimeter wave radar chip, transmit millimeter wave and receive the signal that the barrier reflected back through the radar antenna, be provided with control circuit on the control circuit board 3, control circuit board 3 is connected with millimeter wave radar chip for control millimeter wave radar chip transmission millimeter wave and receive the feedback signal that millimeter wave radar chip transmitted simultaneously, thereby detect whether someone in the public latrine, control circuit board 3 can be with this detection signal transmission for the central controller in the public latrine again, the central controller controls corresponding equipment work in the public latrine. Further, the upper surface of the base 1 is located in the cavity, a chip mounting seat 4 for mounting a millimeter wave radar chip and a plugboard frame 5 for fixing the control circuit board 3 are respectively arranged on the upper surface of the base 1, and the plugboard frame 5 is located behind the chip mounting seat 4; the chip mount pad 4 includes chip mounting panel 41 and fixed ear seat 42, and fixed ear seat 42 symmetry sets up in the both sides of chip mounting panel 41, and the bottom of fixed ear seat 42 is connected with base 1 upper surface, and the tip is provided with the connecting hole, and the both sides of chip mounting panel 41 are provided with the connecting axle respectively, and the connecting axle rotates the connecting hole that sets up in corresponding side fixed ear seat 42, chip mounting panel 41 can rotate for fixed ear seat 42 with the connecting axle as the axle, be provided with chip standing groove 43 on the chip mounting panel 41, millimeter wave radar chip is fixed in chip standing groove 43, the first opening 6 that supplies the wiring of millimeter wave radar chip to pass is seted up to the bottom of chip standing groove 43, and the wiring of millimeter wave radar chip passes behind the first opening 6 is connected with the control circuit board 3 on the rear picture peg frame 5.

In this embodiment, a radar antenna is disposed on a millimeter wave radar chip, where the radar antenna includes a transmitting antenna array and a receiving antenna array, where the control circuit board 3 controls the transmitting antenna array to transmit millimeter waves, when a person passes by or is located on a transmission path of the millimeter waves, the receiving antenna array receives a reflected signal and transmits the reflected signal to the control circuit board 3, and the control circuit board 3 determines that a person is in the public toilet at this time after receiving the feedback signal, and sends a determination result to a central controller in the public toilet, where the central controller controls corresponding devices to work, such as ventilation devices and lighting devices in the public toilet.

In the present embodiment, since the chip mounting board 41 is rotatable about the connection axis with respect to the fixed ear mount 42, the millimeter wave radar chip is mounted on the chip mounting board 41, and thus the angle of the millimeter wave radar chip is adjustable. According to the detection device, the angle of the millimeter wave radar chip is adjusted, and the millimeter wave radar chip is rotated to different directions to correspond to different detection modes so as to detect the vital sign information in the preset range, so that the detection requirement of a user in a specific direction can be met, and the application range is wider. For example, for toilets with different space sizes, the effect of adjusting the angle of the millimeter wave radar chip is achieved by rotating the millimeter wave radar chip mounting plate 41, and when the angle of the millimeter wave radar chip changes, the scanning detection range of the millimeter wave radar chip also changes along with the angle, so that the detection of vital sign information in different ranges can be achieved. Therefore, the angle of the millimeter wave radar chip can be adjusted according to the size of the toilet space, the angle with the best detection effect can be found, and the detection accuracy of the device is ensured.

In this embodiment, the chip mounting board 41 may be rotated manually, or may be automatically rotated by a motor. When adopting the autogiration mode, set up a motor in the cavity, the output of motor is connected with arbitrary connecting axle of millimeter wave radar chip mounting panel 41, drives millimeter wave radar chip mounting panel 41 and rotates when the motor is operated, and then realizes changing the effect of millimeter wave radar chip angle, consequently can also set up the operating time of motor, makes it rotate in fixed time interval, consequently can form a complete scanning route at whole rotation in-process millimeter wave radar chip, realizes the omnidirectional detection in the public latrine. When adopting artificial mode to rotate, tighter cooperation between connecting axle and the connecting hole, when external force effect on the mounting panel, it can rotate, but after removing external force, can realize fixed positioning's effect under tighter complex effect between connecting axle and connecting hole again.

In this embodiment, since the angle of the millimeter wave radar chip may be adjusted, the surface of the outer cover 2 facing the millimeter wave radar chip is in a circular arc shape, so that the millimeter wave radar chip of the detection device can be ensured to work normally.

In the present embodiment, the chip placement groove 43 is provided on the chip mounting board 41, and is integrally formed with the chip mounting board 41, i.e., a slot is formed in the chip mounting board 41 as the chip placement groove 43.

In this embodiment, a battery may be further disposed in a cavity formed by covering the base 1 and the outer cover 2, and the battery is connected with the control circuit board 3, so as to supply power to the whole detection device; similarly, the control circuit board 3 may be connected to a power conversion module, where the power conversion module is connected to the mains supply, so as to convert the mains supply into a voltage and a current suitable for the detection device, and the whole detection device is powered by the mains supply.

In this embodiment, the base 1 and the outer cover 2 are fixedly connected in a fastening manner, specifically, a fastening groove is formed in the base 1, a fastening protrusion is arranged on the inner wall of the outer cover 2, and the fastening protrusion can be fastened in the fastening groove, so that the base 1 and the outer cover 2 are closed and fixedly connected. The snap connection is a conventional technique in the art and will not be described in detail here.

In this embodiment, the detection device is fixed at a wall surface or a door panel of a public toilet through the base 1, and the fixing modes are various, such as a screw mode, a self-adhesive bonding mode and the like.

Example 2

The embodiment discloses a public toilet personnel detection device based on millimeter wave radar, and based on the embodiment 1, the structure of the detection device is further limited, and the detection device is specifically as follows.

Referring to fig. 2, 3 and 6 of the specification, when the millimeter wave radar chip mounting board 41 is manually rotated, in order to better realize the fixed positioning of the mounting board, the upper surface of the base 1 is further provided with an angle limiting component 7 for limiting and locking the rotation angle of the chip mounting board 41. Specifically, the angle limiting assembly 7 includes a stop disc 71 and a stop rod 72, the stop disc 71 is disposed on one side of the chip mounting board 41, the stop disc 71 is integrally formed in a semicircular shape, and is integrally formed with the chip mounting board 41, the stop rod 72 is located on one side of the stop disc 71, the bottom of the stop rod 72 is fixed on the upper surface of the base 1, the end is a free end, a limiting bump is disposed on the end, a plurality of limiting grooves 9 adapted to the limiting bump are disposed on the stop disc 71, and the limiting grooves 9 are uniformly disposed along the circumferential direction of the stop disc 71. Since the stop lever 72 is a cantilever structure with one fixed end, the free end has a certain elasticity, when the chip mounting board 41 is rotated, the stop bump is extruded into the stop groove 9, when the chip mounting board 41 is rotated to a desired angle, the stop bump at the end of the stop lever 72 enters the stop groove 9 at a corresponding position, no external force is applied at this time, and the stop disc 71 is locked and no rotation is generated.

Further, referring to fig. 2-4 of the specification, the board inserting frame 5 includes a first upright 51 and a second upright 52 that are disposed opposite to each other, and slots are respectively formed on opposite surfaces of the two uprights, that is, a first slot 53 is disposed on the first upright 51, a second slot 54 is disposed on the second upright 52, the two slots are opposite to each other and extend along a length direction of the upright, and inlets are disposed in both the two slots and located on top surfaces of the uprights and are communicated with the slots. The two sides of the control circuit board 3 enter or leave the slot from the inlets at the tops of the upright posts at the two sides, so that the extraction and the fixation of the control circuit board 3 are realized.

In this embodiment, the first slot 53 on the first upright 51 corresponds to the second slot 54 on the second upright 52, and the depths of the corresponding two slots are the same.

Further, referring to fig. 5 of the specification, the base 1 is provided with a second opening 10 through which the wiring of the control circuit board 3 passes, and the wiring of the control circuit board 3 passes through the opening and is connected with a power supply module, a central controller and other structures. Further, a wiring groove 11 is provided on the lower surface of the base 1, and the wiring groove 11 communicates with the second opening 10. The wiring groove 11 can be used for regularly integrating wiring of the control circuit board 3 coming out of the second opening 10 and laying the wiring in the groove, so that the wiring is convenient to be regular and wiring is convenient to use.

Further, the base 1 is provided with a fixing hole 12 through which a fixing screw passes. According to the utility model, the detection device is mounted in a fixed screw mode, the fixing effect is better, and the detection device is not easy to fall off.

In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.

Claims (7)

1. The public toilet personnel detection device based on the millimeter wave radar comprises a base (1) and an outer cover (2) covered on the base (1), and is characterized by further comprising a control circuit board (3) and a millimeter wave radar chip which are contained in a cavity formed by the base (1) and the outer cover (2) after being covered, wherein a chip mounting seat (4) for mounting the millimeter wave radar chip and a plugboard frame (5) for fixing the control circuit board (3) are respectively arranged on the upper surface of the base (1); the chip mount pad (4) includes chip mounting panel (41) and sets up fixed ear seat (42) on base (1) upper surface, is provided with the connecting hole on fixed ear seat (42), is provided with the connecting axle on chip mounting panel (41), and the connecting axle sets up in the connecting hole, chip mounting panel (41) can use the connecting axle to rotate for fixed ear seat (42) as the axle, be provided with chip standing groove (43) on chip mounting panel (41), chip standing groove (43) have seted up first opening (6) that supply millimeter wave radar chip's wiring passed.

2. The millimeter wave radar-based public toilet personnel detection device according to claim 1, wherein the upper surface of the base (1) is further provided with an angle limiting component (7) for limiting and locking the rotation angle of the chip mounting plate (41).

3. The public toilet personnel detection device based on millimeter wave radar according to claim 2, wherein the angle limiting component (7) comprises a stop disc (71) and a stop rod (72), the stop disc (71) is arranged on one side of the chip mounting plate (41), the stop rod (72) is arranged on one side of the stop disc (71), the bottom of the stop rod (72) is fixed on the upper surface of the base (1), the end part of the stop rod is a free end, a limiting protruding point is arranged at the end part of the stop rod, and a plurality of limiting grooves (9) matched with the limiting protruding point (8) are formed in the stop disc (71).

4. The millimeter wave radar-based public toilet personnel detection device according to claim 1, wherein the plugboard frame (5) comprises a first upright (51) and a second upright (52) which are oppositely arranged, a first slot (53) is formed in the first upright (51), a second slot (54) is formed in the second upright (52), the two slots are oppositely arranged, and an inlet is formed in each slot and located in the top surface of the upright and communicated with the slot.

5. The device for detecting personnel in public toilets based on millimeter wave radar according to claim 1, characterized in that the base (1) is provided with a second opening (10) for the wiring of the control circuit board (3) to pass through.

6. The millimeter wave radar-based public toilet personnel detection device according to claim 5, wherein a wiring groove (11) is formed in the lower surface of the base (1), and the wiring groove (11) is communicated with the second opening (10).

7. The device for detecting personnel in public toilets based on millimeter wave radar according to claim 1, wherein the base (1) is provided with a fixing hole (12) for a fixing screw to pass through.