WO2023116121A1

WO2023116121A1 - Intelligent toilet cover plate control method based on infrared and pressure sensors

Info

Publication number: WO2023116121A1
Application number: PCT/CN2022/123539
Authority: WO
Inventors: 吴德煌; 张振国
Original assignee: 吴端龙
Priority date: 2021-12-21
Filing date: 2022-09-30
Publication date: 2023-06-29
Also published as: CN114326445A; CN114326445B

Abstract

Provided in the present invention is an intelligent toilet cover plate control method based on infrared and pressure sensors. The method comprises: S1, sensing, by means of an infrared sensing unit, a human body which approaches an intelligent toilet cover plate, and transmitting an approach signal to a first controller, so as to control a second opening and closing unit to open a toilet lid, wherein the infrared sensing unit has a first sensing distance; S2, controlling the sensing distance of the infrared sensing unit to be shortened from the first sensing distance to a second sensing distance, and activating a pressure sensor at the same time; S3, determining whether the infrared sensing unit senses a first gesture signal, if so, controlling a first opening and closing unit to open a seat ring, and entering S4, otherwise, keeping the seat ring closed, acquiring the pressure of the seat ring by means of the pressure sensor, and entering S5; S4, sensing a second gesture signal by means of the infrared sensing unit, and transmitting the second gesture signal to the first controller, so as to control flushing; and S5, when the pressure of the pressure sensor tends to be zero, controlling flushing by means of the first controller.

Description

Control method of intelligent toilet cover based on infrared and pressure sensor

technical field

The invention relates to a control method for an intelligent toilet cover based on infrared and pressure sensors.

Background technique

At present, the automatic cover of the smart toilet mainly samples microwaves and human body pyroelectric sensors. The microwave sensor is an omnidirectional sensor and is placed behind the toilet. Because the angle of the omnidirectional microwave sensor is relatively large, people wash their hands in the washbasin around the toilet. , but when you don’t need to use the toilet, it will be mistaken for frequent opening. The smart toilet that samples the pyroelectric sensor of the human body, because the pyroelectric sensor needs to detect moving objects, when the object is not moving, the sensor cannot detect it, so there are many disadvantages.

Contents of the invention

The invention provides a control method for an intelligent toilet cover based on infrared and pressure sensors, which can effectively solve the above problems.

The present invention is achieved like this:

The present invention provides a method for controlling an intelligent toilet cover based on infrared and pressure sensors, comprising the following steps:

S1. Sensing the human body approaching the smart toilet cover through the infrared sensing unit, and transmitting the approach signal to the first controller to control the second opening and closing unit to open the toilet cover, wherein the infrared sensing unit has a first Sensing distance;

S2, controlling the sensing distance of the infrared sensing unit to shorten from the first sensing distance to a second sensing distance, and simultaneously activating the pressure sensor;

S3, judging whether the infrared sensing unit senses the first gesture signal, if so, control the first switch unit to open the seat and enter S4, otherwise keep the seat closed and obtain the seat through the pressure sensor pressure, and enter S5;

S4, sensing a second gesture signal through the infrared sensing unit, and transmitting the second gesture signal to the first controller to control flushing;

S5, when the pressure of the pressure sensor tends to zero, control flushing through the first controller.

The beneficial effects of the present invention are: the intelligent toilet cover control method based on infrared and pressure sensors provided by the present invention solves the problem of large microwave angles and the inability of infrared pyroelectric sensors to detect static objects through directional infrared sensing units . Through the identification of the pressure sensor, the present invention can further judge whether the human body is away, and then flush water, thereby avoiding operations such as pinching. Furthermore, by sensing distance changes, control gestures can be accurately recognized, thereby improving customer experience.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is a schematic structural diagram of an intelligent toilet based on infrared and pressure sensors provided by an embodiment of the present invention.

Fig. 2 is a structural diagram of an intelligent toilet based on infrared and pressure sensors provided by an embodiment of the present invention.

Fig. 3 is a flowchart of a control method for an intelligent toilet based on infrared and pressure sensors provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

Referring to Figure 1-2, an embodiment of the present invention is an intelligent toilet based on infrared and pressure sensors, including:

Toilet body 20;

The cover body 10 arranged on the toilet body 20 is provided with a first controller 101, a first switch unit, a second switch unit and a second wireless communication module 102;

Rotate the seat ring 11 provided on the first switch unit, the seat ring 11 is provided with a transmitting circuit 111, a transmitting coil 112 and a pressure sensor 113, and the transmitting circuit 111 and the pressure sensor 113 are connected to the The first controller 101 is electrically connected;

The cover plate 12 provided on the second switch unit can be quickly disassembled and rotated; the cover plate 12 is provided with a receiving coil 121 and a receiving circuit 122 for electrically connected wireless charging; a second controller 123, a supercapacitor 125, Infrared sensing units 130, 131 and a first wireless communication module 132; when the cover plate 12 is closed, the receiving coil 121 and the transmitting coil 112 are arranged facing each other for charging;

The infrared sensing unit 130 is used to sense the approaching human body signal or gesture signal, and the second controller 123 is used to transmit the human body signal or gesture signal to the first controller 101 through the communication module to control the The second opening and closing unit opens the cover 12 or controls the first opening and closing unit to open the seat 11; the pressure sensor 113 is used to sense whether the human body leaves for flushing.

As a further improvement, in other embodiments, the cover body 10 may be further provided with a cleaning unit (not shown in the figure), and the first controller 101 is used to control the cleaning unit to Perform a bidet or buttock wash. The cover body 10 may further be provided with a drying unit (not shown in the figure), and the first controller 101 is used to control the drying unit to dry the corresponding position after cleaning. The functions of the cover body 10 are not limited to the above functions, and are not limited here. The first opening and closing unit, the second opening and closing unit, the cleaning unit and the drying unit are prior art and will not be repeated here.

Please refer to FIG. 2 together. The infrared sensing unit 130 is arranged outside the cover plate 12 and away from the end of the cover plate main body 10. The infrared sensing unit 130 is used to sense an approaching human body and perform gesture control. The pressure sensor 113 is arranged in the middle of the upper surface of the seat 11 for sensing whether the human body uses the seat 11 or whether the human body leaves.

When a person or object approaches the infrared sensing unit 130, the infrared sensing unit 130 will transmit information to the second wireless communication module 102 through the first wireless communication module 132 after detecting the signal, The first controller 101 controls the second switch unit to open the cover 12 . At this time, the sensing distance of the infrared sensing unit 130 can be shortened from the first sensing distance to the second sensing distance, and the pressure sensor 113 is controlled to start working. Changing the sensing distance can be achieved by controlling the power or in other ways (eg, keeping the power constant, but not generating any control when the second sensing distance is exceeded, ie, signal filtering). The first sensing distance may be 1-5 meters; the second sensing distance may be 0-0.5 meters. Further, when the infrared sensing unit 130 detects the first gesture signal, it will transmit the first gesture information to the second wireless communication module 102 through the first wireless communication module 132, and the first The controller 101 controls the first switch unit to open the seat ring 11 . Furthermore, after urinating, when the infrared sensing unit 130 detects the second gesture signal, it will send the second gesture signal to the second wireless communication module 132 to transmit data to the second wireless communication module 132. In module 102, the first controller 101 controls flushing, and the boy finishes urinating. The first gesture signal may be a gesture action in the horizontal direction, for example, a gesture action moving from front to back (similar to a flip action). The second gesture signal may be a gesture action in the vertical direction, for example, a gesture action moving from top to bottom (similar to a pressing action). In case of misoperation, the seat 11 can be closed by the reverse first gesture signal.

In addition, when the infrared sensing unit 130 does not detect the first gesture signal and the pressure sensor 113 detects a pressure signal. At this point, it is described that the seat ring 11 is in use. Further, when the pressure sensor 113 detects that the pressure signal disappears, the first controller 101 controls the flushing, and the toilet seat ends. Finally, the second switch unit and the first switch unit are sequentially controlled to be closed.

In other embodiments, the seat 11 is further provided with a seat heater (not shown in the figure) electrically connected to the first controller 101 for controlling the first controller 101 The race 11 is heated. The seat heater is also a prior art and will not be repeated here.

As a further improvement, the transmitting circuit 111 and the transmitting coil 112 are arranged at an end of the seat ring 11 away from the cover main body 10 . And the receiving coil 121 and the receiving circuit 122 are also correspondingly arranged at the end of the cover plate 12 away from the cover plate main body 10, so that the distance between the seat ring 11 and the cover plate 12 is the shortest when they are closed, and When the cover plate 12 is opened, the receiving coil 121 is far away from the transmitting coil 112 to avoid mutual interference.

As a further improvement, in other embodiments, the cover plate 12 is further provided with an alarm module, and the alarm module includes a button 126 and an alarm 127 . By arranging the alarm module, the old man can alarm through the alarm module when an emergency occurs when using the toilet.

As a further improvement, in other embodiments, the cover plate 12 is further provided with a music playing unit (not shown in the figure) connected to the second controller 123 to play music and the like.

Please refer to Fig. 3, the present invention further provides a control method for an intelligent toilet cover based on infrared and pressure sensors, including the following steps:

S1, using the infrared sensing unit 130 to sense the human body approaching the smart toilet cover, and transmit the approach signal to the first controller 101 to control the second opening and closing unit to open the toilet cover 12, wherein the infrared sensing unit 130 has a first sensing distance;

S2, controlling the sensing distance of the infrared sensing unit 130 to shorten from the first sensing distance to a second sensing distance, and simultaneously activating the pressure sensor 113;

S3, judging whether the infrared sensing unit 130 senses the first gesture signal, if so, control the first switch unit to open the seat 11 and enter S4, otherwise keep the seat 11 closed and obtain it through the pressure sensor 113 The pressure of the seat ring 11, and enter S5;

S4, sensing a second gesture signal through the infrared sensing unit 130, and transmitting the second gesture signal to the first controller 101 to control flushing;

S5, when the pressure of the pressure sensor 113 tends to zero, the first controller 101 controls flushing.

In step S1, as a further improvement, the first sensing distance is 1-5 meters. By setting a large detection range, false detection can be prevented. Further, when the human body approaches the smart toilet cover for about 1 meter, the second opening and closing unit is controlled to open the toilet cover 12 . Generally speaking, the walking speed of a normal person is about 1 m/s. Therefore, the toilet lid 12 can be opened during this 1 second to improve user experience. It can be understood that when the toilet lid 12 is fully opened, the sensing area of the infrared sensing unit 130 changes from a horizontal direction to a vertical direction.

In step S2, the height of a normal person is generally about 1.5 meters to 1.8 meters, and at this time, the height of the infrared sensor 130 is about 1 meter, and the length of the human arm is 0.5 to 1 meter. Therefore, the The second sensing distance is set to 0-0.5 meters. Thereby it is convenient for people of different heights to use. It can be understood that by controlling the sensing distance of the infrared sensing unit 130 to shorten from the first sensing distance to the second sensing distance, it is possible to prevent damage to the ceiling or False detection of other bathroom equipment such as water heater. More preferably, the second sensing distance is set at 0.2-0.5 meters.

As a further improvement, the step of controlling the sensing distance of the infrared sensing unit 130 to shorten from the first sensing distance to the second sensing distance includes:

The power of the infrared sensing unit 130 is reduced to shorten the sensing distance from the first sensing distance to the second sensing distance.

In other embodiments, as a further improvement, the step of controlling the sensing distance of the infrared sensing unit 130 to shorten from the first sensing distance to the second sensing distance includes:

By controlling the infrared sensing unit 130 to filter out signals of objects whose distance exceeds the second sensing distance, the sensing distance thereof is shortened from the first sensing distance to the second sensing distance.

As a further improvement, the first gesture signal is an action in the horizontal direction; the second gesture signal is an action in the vertical direction. And the action needs to exceed the set distance to prevent false triggering. The set distance may be 20cm-40cm, which may be set according to actual needs.

After step S4 or S5, when flushing is finished, further include:

S6, sequentially controlling the closing of the second opening and closing unit and the first opening and closing unit to close the seat 11 and the toilet lid 12 in sequence.

In other embodiments, as a further improvement, after step S6, when the toilet lid 12 is closed, it further includes:

S7. Control the sensing distance of the infrared sensing unit 130 to return from the second sensing distance to the first sensing distance.

S8, controlling the pressure sensor 113 to be in a dormant state, so as to reduce energy consumption.

S9, judging whether the distance between the receiving coil 121 and the transmitting coil 112 is less than a set distance, if so, charging is performed, and electric energy is stored in the supercapacitor 125 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

A method for controlling an intelligent toilet cover based on infrared and pressure sensors, characterized in that it comprises the following steps:

S1, sensing the human body approaching the smart toilet cover through the infrared sensing unit (130), and transmitting the approach signal to the first controller (101) to control the second opening and closing unit to open the toilet cover (12), wherein, The infrared sensing unit (130) has a first sensing distance;

S2, controlling the sensing distance of the infrared sensing unit (130) to shorten from the first sensing distance to a second sensing distance, and simultaneously activating the pressure sensor (113);

S3, judging whether the infrared sensing unit (130) senses the first gesture signal, if so, control the first switch unit to open the seat (11) and enter S4, otherwise keep the seat (11) closed and pass The pressure sensor (113) obtains the pressure of the seat ring (11), and enters S5;

S4, sensing the second gesture signal through the infrared sensing unit (130), and transmitting the second gesture signal to the first controller (101) to control flushing;

S5, when the pressure of the pressure sensor (113) tends to zero, control flushing through the first controller (101).
The method for controlling an intelligent toilet cover based on infrared and pressure sensors according to claim 1, wherein the first sensing distance is 1 to 5 meters, and the second sensing distance is 0 to 0.5 meters .
The method for controlling an intelligent toilet cover based on infrared and pressure sensors according to claim 1, wherein the first gesture signal is an action in the horizontal direction; the second gesture signal is an action in the vertical direction.
The method for controlling the smart toilet cover based on infrared and pressure sensors according to claim 1, characterized in that, after flushing is finished, further comprising:

The closing of the second opening and closing unit and the first opening and closing unit are sequentially controlled to close the seat (11) and the toilet lid (12) in sequence.
The method for controlling an intelligent toilet cover based on infrared and pressure sensors according to claim 4, characterized in that, when the toilet cover (12) is closed, further comprising:

The sensing distance of the infrared sensing unit (130) is controlled to recover from the second sensing distance to the first sensing distance.
The control method of an intelligent toilet cover according to claim 1, characterized in that the sensing distance of the infrared sensing unit (130) is controlled to shorten from the first sensing distance to the second sensing distance. Steps for sensing distance include:

The power of the infrared sensing unit (130) is reduced to shorten its sensing distance from the first sensing distance to a second sensing distance.
The control method of the intelligent toilet cover according to claim 1, characterized in that, when the toilet cover (12) is closed, further comprising:

The pressure sensor (113) is controlled to be in a dormant state.
The control method of the intelligent toilet cover according to claim 2, characterized in that, the movement in the horizontal direction or the movement in the vertical direction needs to exceed a set distance to prevent false triggering.