CN111700499B

CN111700499B - Water drinking equipment, water drinking system, control method of water drinking equipment and storage medium

Info

Publication number: CN111700499B
Application number: CN202010597235.9A
Authority: CN
Inventors: 袁伟龙; 魏中科; 全永兵
Original assignee: Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-11-12
Anticipated expiration: 2040-06-28
Also published as: CN113842038B; CN113842037A; CN113842037B; WO2022001725A1; CN113842038A; CN111700499A

Abstract

The invention provides a drinking water device, a drinking water system, a control method of the drinking water device and a storage medium, wherein the drinking water device comprises: the body is provided with a water receiving area; the water storage device is arranged on the body; the detection device is arranged on the body and can transmit and receive the frequency modulation continuous wave; a storage device in which a computer program is stored; a control device that, when executing the computer program, realizes: controlling the detection device to emit frequency-modulated continuous waves towards the water receiving area; the control detection device receives a first reflected wave formed by reflecting the frequency-modulated continuous wave by the water receiving container; and controlling the water outlet of the water storage device according to the frequency modulated continuous wave and the first reflected wave. The invention can realize the non-contact automatic water outlet control of the drinking water equipment, and has more accurate control precision and higher control reliability.

Description

Water drinking equipment, water drinking system, control method of water drinking equipment and storage medium

Technical Field

The invention relates to the technical field of water dispensers, in particular to a water dispenser, a water dispenser system, a control method of the water dispenser and a computer readable storage medium.

Background

At present, in order to improve the user experience of the water dispenser, more and more water dispensers have the function of automatically receiving water. In the related art, the water outlet of the water dispenser is controlled by operating a key or an infrared induction mode. The button water intaking mode needs the user to trigger through the operation button, and the contrast response mode of going out water seems comparatively loaded down with trivial details, and has the public health risk. The infrared sensing detection scheme has large limitation, and natural light and a plurality of light sources also comprise infrared light, so that the infrared sensing detection scheme is easy to interfere; the reflection intensity of a static object to light in an application scene changes along with the time, so that the risk of functional failure is increased; the infrared induction mode is one of light, and light holes need to be formed in the structure, so that the design of the structure and the appearance is displayed; mist and water vapor can also affect the normal operation of the infrared scheme.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, one aspect of the present invention is to propose a drinking device.

Another aspect of the present invention is to provide a hydration system.

Yet another aspect of the present invention is to provide a control method of a drinking water apparatus.

Yet another aspect of the present invention is to provide a computer-readable storage medium.

In view of the above, according to one aspect of the present invention, there is provided a drinking water apparatus including: the body is provided with a water receiving area; the water storage device is arranged on the body; the detection device is arranged on the body and can transmit and receive the frequency modulation continuous wave; a storage device in which a computer program is stored; a control device that, when executing the computer program, realizes: controlling the detection device to emit frequency-modulated continuous waves towards the water receiving area; the control detection device receives a first reflected wave formed by reflecting the frequency-modulated continuous wave by the water receiving container; and controlling the water outlet of the water storage device according to the frequency modulated continuous wave and the first reflected wave.

The drinking water equipment provided by the invention comprises: the device comprises a body, a water storage device, a detection device, a storage device and a control device. The body is provided with a water receiving area and a detection device, the detection device is opposite to the water receiving area, and can emit frequency-modulated continuous waves towards the water saving area and receive reflected waves formed after the frequency-modulated continuous waves are reflected; the water storage device is arranged on the body and can supply water for the water receiving container; the storage device stores a computer program that the control device can execute.

Particularly, when the control device executes the computer program in the storage device, the detection device can be controlled to emit frequency-modulated continuous waves towards the water receiving area, and the frequency-modulated continuous waves are reflected after meeting the water receiving container in the water receiving area and generate first reflected waves towards the water receiving container; particularly, a frequency difference exists between the first reflected wave and the frequency modulation continuous wave, and the control device can know the state of the water receiving container according to the frequency difference so as to control the water storage device to discharge water and realize the non-contact automatic water discharge control. In addition, because the frequency modulation continuous wave is not influenced by natural light, and the detected object is sensitive to the frequency modulation continuous wave, the possibility of failure detection of the frequency modulation continuous wave is avoided, the detection accuracy and reliability of the water receiving container are further improved, and the control precision of the water drinking equipment is further improved.

According to the water dispenser, the water storage device is controlled to automatically discharge water through the frequency-modulated continuous waves and the first reflected waves formed by the frequency-modulated continuous waves after the frequency-modulated continuous waves meet the water receiving container and are reflected, non-contact automatic water discharge control can be achieved, the control precision is more accurate, and the control reliability is higher.

The drinking water equipment according to the technical scheme of the invention can also have the following additional technical characteristics:

in the above technical solution, the step of controlling the detection device to emit the frequency modulated continuous wave toward the water receiving area specifically includes: and in the scanning period, controlling the detection device to emit frequency modulation continuous waves towards the water receiving area according to the frequency modulation slope larger than 0 and the frequency modulation slope smaller than 0.

In the technical scheme, in the process of controlling the detection device to emit the frequency modulation continuous waves towards the water receiving area, the detection device is controlled to emit the frequency modulation continuous waves towards the water receiving area according to the frequency modulation slope larger than 0 and the frequency modulation slope smaller than 0 in sequence in the same scanning period. Based on the above arrangement, the frequency modulated continuous wave and the first reflected wave in the same scanning period are enabled to have a rising edge and a falling edge at the same time, so that the control device can acquire the frequency difference of the rising edge and the falling edge respectively. Specifically, in a scanning period, the detection device is controlled to emit triangular waves to the water receiving area.

In particular, for a stationary object, the frequency difference of its rising and falling edges is the same; for a moving object, the frequency difference between the rising edge and the falling edge of the moving object is different, and the control device can judge whether the water receiving container is in the running state according to the frequency difference between the rising edge and the falling edge, calculate the motion state of the water receiving container and further control the water storage device to discharge water. Specifically, the rising edge refers to a process of controlling the detection device to emit the fm continuous wave to the water receiving area with a fm slope larger than 0, and the falling edge refers to a process of controlling the detection device to emit the fm continuous wave to the water receiving area with a fm slope smaller than 0.

In any of the above technical solutions, the step of controlling the water storage device to discharge water according to the frequency modulated continuous wave and the first reflected wave specifically includes: acquiring a first frequency difference between the frequency modulated continuous wave and the first reflected wave at the stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with the frequency modulation slope larger than 0; acquiring a second frequency difference between the frequency modulated continuous wave and the first reflected wave at the stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with the frequency modulation slope smaller than 0; calculating the movement speed of the water receiving container relative to the detection device according to the first frequency difference, the second frequency difference and the wavelength of the frequency modulated continuous wave; and controlling the water outlet of the water storage device according to the movement speed of the water receiving container relative to the detection device.

In the technical scheme, in the process of controlling the water outlet of the water storage device according to the frequency modulation continuous wave and the first reflected wave, in the process of transmitting the frequency modulation continuous wave towards the water receiving area by the detection device with the frequency modulation slope larger than 0, a first frequency difference between the frequency modulation continuous wave and the first reflected wave is obtained, and in the process of transmitting the frequency modulation continuous wave towards the water receiving area by the detection device with the frequency modulation slope smaller than 0, a second frequency difference between the frequency modulation continuous wave and the first reflected wave is obtained; and then, calculating the movement speed of the water receiving container relative to the detection device according to the first calculation formula according to the first frequency difference, the second frequency difference and the wavelength of the frequency modulated continuous wave. Particularly, after the movement speed of the water receiving container relative to the detection device in the water receiving area is obtained, whether the user has the water receiving behavior or not can be judged, and then the water storage device is controlled to store water.

Specifically, when the water receiving container is calculated to have a certain movement speed relative to the detection device, the user is indicated to place the water receiving container to a water receiving area and prepare for receiving water; when the movement speed of the water receiving container relative to the detection device is 0 or less than a certain value, the user is indicated that the water receiving container is placed in the water receiving area, and the water storage device is controlled to discharge water.

In any of the above technical solutions, after the step of calculating the movement speed of the water receiving container relative to the detection device according to the first frequency difference, the second frequency difference, and the wavelength of the frequency modulated continuous wave, the method further includes: calculating the distance between the water receiving container and the detection device according to the first frequency difference, the second frequency difference, the propagation speed of the frequency modulation continuous wave and the absolute value of the frequency modulation slope; and controlling the water storage device to discharge water according to the movement speed and distance of the water receiving container relative to the detection device.

In the technical scheme, after the movement speed of the water receiving container relative to the detection device is obtained through calculation, the distance of the water receiving container relative to the detection device is calculated according to a second calculation formula according to the first frequency difference, the second frequency difference, the propagation speed of the frequency modulation continuous wave and the absolute value of the frequency modulation slope, and then the water outlet of the water storage device is controlled according to the movement speed and the distance of the water receiving container relative to the detection device.

Specifically, when the water receiving container is calculated to have a certain movement speed relative to the detection device, the user is indicated to place the water receiving container to a water receiving area and prepare for receiving water; when the distance between the water receiving container and the detection device is smaller than the first preset distance, the user is indicated that the water receiving container is placed at the designated position of the water receiving area, and the water storage device is controlled to discharge water.

Particularly, under the condition of comprehensively considering the two factors of the movement speed of the water receiving container relative to the detection device and the distance of the water receiving container relative to the detection device, the water storage device can be controlled to discharge water under the condition that a user places the water receiving container in a water receiving area, sudden pause of the user in the process of placing the water receiving container can be avoided, the control device misjudges the condition that the water receiving container is placed in the water receiving area, and the control accuracy of the water drinking equipment is further improved. For the condition that the user receives hot water, the safety of the drinking water equipment can be improved, and the user is prevented from being scalded.

In any of the above aspects, the control device, when executing the computer program, further implements: in the process of water outlet of the water storage device, the detection device is controlled to receive a second reflected wave formed by the reflection of the frequency-modulated continuous wave on the liquid level in the water receiving container; and controlling the water storage device to stop water outlet according to the frequency modulated continuous wave and the second reflected wave.

In the technical scheme, in the process of water outlet of the water storage device, after the frequency-modulated continuous waves meet the liquid level in the water receiving container, second reflected waves facing the detection device are formed through reflection; because the liquid level in the water receiving container rises continuously, a certain frequency difference exists between the second reflected wave and the frequency-modulated continuous wave; the control device can determine the position of the liquid level in the water receiving container according to the frequency modulation continuous wave and the second reflected wave, and then controls the water storage device to stop water outlet, so that quantitative water outlet of the water drinking equipment is realized, and water in the water receiving container is prevented from overflowing. Meanwhile, the whole process does not need user contact operation, non-contact automatic water outlet control can be realized, the control precision is more accurate, and the control reliability is higher.

In any of the above technical solutions, the step of controlling the water storage device to stop discharging water according to the frequency modulated continuous wave and the second reflected wave specifically includes: acquiring a third frequency difference between the frequency modulated continuous wave and the second reflected wave at the stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with the frequency modulation slope larger than 0; acquiring a fourth frequency difference between the frequency modulated continuous wave and the second reflected wave at the stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with the frequency modulation slope smaller than 0; calculating the distance between the liquid level in the water receiving container and the detection device according to the third frequency difference, the fourth frequency difference, the propagation speed of the frequency-modulated continuous wave and the absolute value of the frequency-modulated slope; and controlling the water storage device to stop water outlet according to the distance between the liquid level in the water receiving container and the detection device.

In the technical scheme, in the process of controlling the water storage device to stop discharging water according to the frequency modulated continuous wave and the second reflected wave, in the process of transmitting the frequency modulated continuous wave towards the water receiving area by the detection device with the frequency modulation slope larger than 0, a third frequency difference between the frequency modulated continuous wave and the second reflected wave is obtained, and in the process of transmitting the frequency modulated continuous wave towards the water receiving area by the detection device with the frequency modulation slope smaller than 0, a fourth frequency difference between the frequency modulated continuous wave and the second reflected wave is obtained; and then, calculating the distance between the liquid level in the water receiving container and the detection device according to a second calculation formula according to the third frequency difference, the fourth frequency difference, the propagation speed of the frequency-modulated continuous wave and the absolute value of the frequency-modulated slope, and controlling the water storage device to stop water outlet according to the distance between the liquid level in the water receiving container and the detection device.

Specifically, when the distance between the liquid level in the water receiving container and the detection device is smaller than a second preset distance, it is indicated that the water receiving container has completed receiving water, and at the moment, the water storage device is controlled to stop water outlet, so that the water in the water receiving container is prevented from overflowing.

Another aspect of the present invention is to provide a drinking water system, including: a water receiving container; and the drinking equipment adopting any technical scheme.

The drinking water system that the invention proposes includes: a water container and a drinking device according to any of the above technical schemes. Therefore, the overall beneficial effects of the drinking water device are not discussed one by one.

Wherein, the water receiving container can be placed in the water receiving area of the cup body, and the water storage device can supply water for the water receiving container.

In another aspect, the present invention provides a method for controlling a drinking water apparatus, including: controlling a detection device of the drinking equipment to emit frequency-modulated continuous waves towards a water receiving area; the control detection device receives a first reflected wave formed by reflecting the frequency-modulated continuous wave by the water receiving container; and controlling the water outlet of the water storage device of the drinking equipment according to the frequency modulated continuous wave and the first reflected wave.

The control method of the drinking water equipment can control the detection device to emit frequency-modulated continuous waves towards the water receiving area of the body, and the frequency-modulated continuous waves are reflected after meeting a water receiving container in the water receiving area and generate first reflected waves towards the water receiving container; particularly, a frequency difference exists between the first reflected wave and the frequency modulation continuous wave, so that the state of the water receiving container can be known according to the frequency difference, water outlet of the water storage device is controlled, and non-contact automatic water outlet control is achieved. In addition, because the frequency modulation continuous wave is not influenced by natural light, and the detected object is sensitive to the frequency modulation continuous wave, the possibility of failure detection of the frequency modulation continuous wave is avoided, the detection accuracy and reliability of the water receiving container are further improved, and the control precision of the water drinking equipment is further improved.

According to the control method of the drinking equipment, the automatic water outlet of the water storage device is controlled through the frequency-modulated continuous waves and the first reflected waves formed by the frequency-modulated continuous waves after the frequency-modulated continuous waves meet the water receiving container and are reflected, the non-contact automatic water outlet control can be realized, the control precision is more accurate, and the control reliability is higher.

The control method of the drinking equipment according to the technical scheme of the invention can also have the following additional technical characteristics:

in above-mentioned technical scheme, the detection device of control drinking water equipment specifically includes towards the step of regional transmission frequency modulation continuous wave of water receiving: and in the scanning period, controlling the detection device to emit frequency modulation continuous waves towards the water receiving area according to the frequency modulation slope larger than 0 and the frequency modulation slope smaller than 0.

In particular, for a stationary object, the frequency difference of its rising and falling edges is the same; for a moving object, the frequency difference between the rising edge and the falling edge of the moving object is different, so that whether the water receiving container is in the running state or not can be judged according to the frequency difference between the rising edge and the falling edge, the moving state of the water receiving container is calculated, and the water outlet of the water storage device is controlled. Specifically, the rising edge refers to a process of controlling the detection device to emit the fm continuous wave to the water receiving area with a fm slope larger than 0, and the falling edge refers to a process of controlling the detection device to emit the fm continuous wave to the water receiving area with a fm slope smaller than 0.

In any one of the above technical solutions, the step of controlling the water storage device of the drinking water apparatus to discharge water according to the frequency modulated continuous wave and the first reflected wave specifically includes: acquiring a first frequency difference between the frequency modulated continuous wave and the first reflected wave at the stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with the frequency modulation slope larger than 0; acquiring a second frequency difference between the frequency modulated continuous wave and the first reflected wave at the stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with the frequency modulation slope smaller than 0; calculating the movement speed of the water receiving container relative to the detection device according to the first frequency difference, the second frequency difference and the wavelength of the frequency modulated continuous wave; and controlling the water outlet of the water storage device according to the movement speed of the water receiving container relative to the detection device.

According to the technical scheme, after the movement speed of the water receiving container relative to the detection device is obtained through calculation, the distance of the water receiving container relative to the detection device is calculated according to a second calculation formula, and then water outlet of the water storage device is controlled according to the movement speed and the distance of the water receiving container relative to the detection device.

Particularly, under the condition of comprehensively considering the two factors of the movement speed of the water receiving container relative to the detection device and the distance of the water receiving container relative to the detection device, the water storage device can be controlled to discharge water under the condition that a user places the water receiving container in a water receiving area, sudden pause of the user in the process of placing the water receiving container can be avoided, the condition that the water receiving container is placed in the water receiving area is misjudged, and the control accuracy of the drinking water equipment is further improved. For the condition that the user receives hot water, the safety of the drinking water equipment can be improved, and the user is prevented from being scalded.

In any of the above technical solutions, after the step of controlling the water storage device of the drinking water apparatus to discharge water according to the frequency modulated continuous wave and the first reflected wave, the method further includes: in the process of water outlet of the water storage device, the detection device is controlled to receive a second reflected wave formed by the reflection of the frequency-modulated continuous wave on the liquid level in the water receiving container; and controlling the water storage device to stop water outlet according to the frequency modulated continuous wave and the second reflected wave.

In the technical scheme, in the process of water outlet of the water storage device, after the frequency-modulated continuous waves meet the liquid level in the water receiving container, second reflected waves facing the detection device are formed through reflection; because the liquid level in the water receiving container rises continuously, a certain frequency difference exists between the second reflected wave and the frequency-modulated continuous wave; according to the frequency modulation continuous wave and the second reflected wave, the position of the liquid level in the water receiving container can be determined, and then the water storage device is controlled to stop water outlet, so that quantitative water outlet of the water drinking equipment is realized, and water in the water receiving container is prevented from overflowing. Meanwhile, the whole process does not need user contact operation, non-contact automatic water outlet control can be realized, the control precision is more accurate, and the control reliability is higher.

A further aspect of the present invention is to provide a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, is adapted to carry out the steps of the method for controlling a water fountain according to any one of the above-mentioned embodiments.

The computer readable storage medium of the present invention stores thereon a computer program, and when the computer program is executed by a processor, the steps of the control method of the drinking water apparatus according to any of the above technical solutions can be implemented. Therefore, all the advantages of the control method of the drinking water device are not discussed herein.

In any of the above technical solutions, the detecting device is an FMCW radar (Frequency Modulated Continuous Wave radar).

In any of the above technical solutions, the frequency modulated continuous wave is a triangular wave, a sawtooth wave, or the like. Specifically, the drinking water equipment provided by the invention adopts FMCW radar to emit triangular waves.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the operation of a drinking apparatus according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method of controlling a water fountain apparatus according to one embodiment of the present invention;

FIG. 3 is a flow chart of a control method of a water drinking apparatus according to another embodiment of the present invention;

FIG. 4 is a flow chart of a control method of a water drinking apparatus according to another embodiment of the present invention;

FIG. 5 is a flow chart of a control method of a water drinking apparatus according to yet another embodiment of the present invention;

fig. 6 is a control schematic diagram of a drinking device according to an embodiment of the present invention.

Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:

102, 104, 106 and 108 are connected with the water receiving area, 106 and 108.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

A drinking device, a drinking system, a control method of a drinking device, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 6.

The first embodiment is as follows:

as shown in fig. 1 (the solid curve represents the frequency modulated continuous wave emitted by the detecting device 106, and the dashed curve represents the reflected wave formed after the reflection by the target object), the first embodiment of the present invention provides a drinking device, comprising: a body 102, a water storage device, a detection device 106, a storage device and a control device.

The body 102 is provided with a water receiving area 104 and a detection device 106, the detection device 106 is opposite to the water receiving area 104, and the detection device 106 can emit frequency-modulated continuous waves towards the water saving area and receive reflected waves formed after the frequency-modulated continuous waves are reflected; the water storage device is arranged on the body 102 and can supply water for the water receiving container 108; the storage device stores a computer program that the control device can execute.

In particular, when the control device executes the computer program stored in the storage device, the detection device 106 may be controlled to emit an fm continuous wave toward the drip receiving area 104, the fm continuous wave being reflected after encountering the drip receiving receptacle 108 in the drip receiving area 104 and generating a first reflected wave toward the drip receiving receptacle 108; particularly, a frequency difference exists between the first reflected wave and the frequency modulated continuous wave, and the control device can know the state of the water receiving container 108 according to the frequency difference to control the water storage device to discharge water, thereby realizing the non-contact automatic water discharge control.

In addition, because the frequency modulated continuous wave is not influenced by natural light, and the detected object is sensitive to the frequency modulated continuous wave, the possibility of failure detection of the frequency modulated continuous wave is avoided, the detection accuracy and reliability of the water receiving container 108 are further improved, and the control precision of the water drinking equipment is further improved.

According to the drinking water equipment provided by the embodiment, the water storage device is controlled to automatically discharge water through the frequency-modulated continuous waves and the first reflected waves formed after the frequency-modulated continuous waves are reflected by the water receiving container 108, the non-contact automatic water discharge control can be realized, the control precision is more accurate, and the control reliability is higher.

In this embodiment, further, in the process of controlling the detection device 106 to emit the fm continuous wave toward the water receiving area 104, the detection device 106 is controlled to emit the fm continuous wave toward the water receiving area 104 with a chirp rate greater than 0 and a chirp rate less than 0 in sequence in the same scanning cycle. Based on the above arrangement, the frequency modulated continuous wave and the first reflected wave in the same scanning period are enabled to have a rising edge and a falling edge at the same time, so that the control device can acquire the frequency difference of the rising edge and the falling edge respectively. Specifically, during the scanning cycle, the detection device 106 is controlled to emit a triangular wave toward the water receiving area 104.

In particular, for a stationary object, the frequency difference of its rising and falling edges is the same; for a moving object, the frequency difference between the rising edge and the falling edge is different, so that the control device can judge whether the water container 108 is in the running state according to the frequency difference between the rising edge and the falling edge, and calculate the motion state of the water container, thereby controlling the water outlet of the water storage device. Specifically, the rising edge refers to a process of controlling the detection device 106 to emit the fm continuous wave to the water receiving area 104 with a chirp rate greater than 0, and the falling edge refers to a process of controlling the detection device 106 to emit the fm continuous wave to the water receiving area 104 with a chirp rate less than 0.

Example two:

as shown in fig. 1 (the solid curve represents the frequency modulated continuous wave emitted by the detecting device 106, and the dashed curve represents the reflected wave formed by the reflection of the target object), the second embodiment of the present invention provides a drinking device, comprising: a body 102, a water storage device, a detection device 106, a storage device and a control device.

The body 102 is provided with a water receiving area 104 and a detection device 106, and the detection device 106 can emit frequency-modulated continuous waves towards the water saving area and receive reflected waves formed after the frequency-modulated continuous waves are reflected; the water storage device can supply water to the water receiving container 108; the storage device stores a computer program that the control device can execute.

In particular, when the control device executes the computer program stored in the storage device, the detection device 106 may be controlled to emit an fm continuous wave toward the drip receiving area 104, the fm continuous wave reflecting upon encountering the drip receiving receptacle 108 in the drip receiving area 104 and generating a first reflected wave toward the drip receiving receptacle 108; the control device controls the water storage device to discharge water according to the frequency modulation continuous wave and the first reflected wave, and then non-contact automatic water discharge control is achieved.

In this embodiment, further, in the process of controlling the water storage device to discharge water according to the fm continuous wave and the first reflected wave, in the process of transmitting the fm continuous wave toward the water receiving area 104 with the chirp rate greater than 0 by the detection device 106, a first frequency difference between the fm continuous wave and the first reflected wave is obtained, and in the process of transmitting the fm continuous wave toward the water receiving area 104 with the chirp rate less than 0 by the detection device 106, a second frequency difference between the fm continuous wave and the first reflected wave is obtained; then, the movement speed of the water receiving container 108 relative to the detection device 106 is calculated according to the first calculation formula according to the first frequency difference, the second frequency difference and the wavelength of the frequency modulated continuous wave. Specifically, after the movement speed of the water container 108 in the water receiving area 104 relative to the detection device 106 is obtained, it can be determined whether the user has a water receiving behavior, so as to control the water storage device to store water.

Specifically, when the calculated movement speed of the water receiving container 108 relative to the detection device 106 is a certain speed, it indicates that the user is placing the water receiving container 108 to the water receiving area 104 and preparing to receive water; when the movement speed of the water receiving container 108 relative to the detection device 106 is 0 or less than a certain value, it indicates that the user has placed the water receiving container 108 in the water receiving area 104, and at this time, the water storage device is controlled to discharge water.

Example three:

as shown in fig. 1 (the solid curve represents the frequency modulated continuous wave emitted by the detecting device 106, and the dashed curve represents the reflected wave formed by the reflection of the target object), the third embodiment of the present invention provides a drinking water apparatus, comprising: a body 102, a water storage device, a detection device 106, a storage device and a control device.

In this embodiment, further, in the process of controlling the water storage device to discharge water according to the fm continuous wave and the first reflected wave, in the process of transmitting the fm continuous wave toward the water receiving area 104 with the chirp rate greater than 0 by the detection device 106, a first frequency difference between the fm continuous wave and the first reflected wave is obtained, and in the process of transmitting the fm continuous wave toward the water receiving area 104 with the chirp rate less than 0 by the detection device 106, a second frequency difference between the fm continuous wave and the first reflected wave is obtained; then, the distance of the water receiving container 108 relative to the detection device 106 is calculated according to the second calculation formula according to the first frequency difference, the second frequency difference, the propagation speed of the frequency modulated continuous wave and the absolute value of the frequency modulation slope, and the water outlet of the water storage device is controlled according to the movement speed and the distance of the water receiving container 108 relative to the detection device 106.

Specifically, when the calculated movement speed of the water receiving container 108 relative to the detection device 106 is a certain speed, it indicates that the user is placing the water receiving container 108 to the water receiving area 104 and preparing to receive water; when the distance between the water receiving container 108 and the detection device 106 is smaller than the first preset distance, it indicates that the user has placed the water receiving container 108 at the designated position of the water receiving area 104, and at this time, the water storage device is controlled to discharge water.

Particularly, in the embodiment, under the condition that the two factors, namely the movement speed of the water receiving container 108 relative to the detection device 106 and the distance of the water receiving container 108 relative to the detection device 106, are comprehensively considered, it can be further ensured that the water storage device is controlled to discharge water under the condition that the user has placed the water receiving container 108 in the water receiving area 104, sudden pause of the user in the process of placing the water receiving container 108 can be avoided, and the control device misjudges that the water receiving container 108 has been placed in the water receiving area 104, so that the control accuracy of the drinking device is further improved. For the condition that the user receives hot water, the safety of the drinking water equipment can be improved, and the user is prevented from being scalded.

Example four:

as shown in fig. 1 (the solid curve represents the frequency modulated continuous wave emitted by the detecting device 106, and the dashed curve represents the reflected wave formed after the reflection of the target object), a fourth embodiment of the present invention provides a drinking device, comprising: a body 102, a water storage device, a detection device 106, a storage device and a control device.

In particular, when the control device executes the computer program stored in the storage device, the detection device 106 may be controlled to emit an fm continuous wave toward the drip receiving area 104, the fm continuous wave being reflected after encountering the drip receiving receptacle 108 in the drip receiving area 104 and generating a first reflected wave toward the drip receiving receptacle 108; the control device controls the water storage device to discharge water according to the frequency modulation continuous wave and the first reflected wave, and then non-contact automatic water discharge control is achieved.

In this embodiment, further, in the process of discharging water from the water storage device, after the frequency modulated continuous wave meets the liquid level in the water receiving container 108, a second reflected wave towards the detection device 106 is formed through reflection; because the liquid level in the water receiving container 108 rises continuously, a certain frequency difference exists between the second reflected wave and the frequency-modulated continuous wave; the control device can determine the position of the liquid level in the water receiving container 108 according to the frequency modulation continuous wave and the second reflected wave, and further control the water storage device to stop water outlet, so that quantitative water outlet of the water drinking device is realized, and water in the water receiving container 108 is prevented from overflowing. Meanwhile, the whole process does not need user contact operation, non-contact automatic water outlet control can be realized, the control precision is more accurate, and the control reliability is higher.

In this embodiment, further, in the process of controlling the water storage device to stop discharging water according to the fm continuous wave and the second reflected wave, in the process of the detection device 106 emitting the fm continuous wave toward the water receiving area 104 with an fm slope larger than 0, a third frequency difference between the fm continuous wave and the second reflected wave is obtained, and in the process of the detection device 106 emitting the fm continuous wave toward the water receiving area 104 with an fm slope smaller than 0, a fourth frequency difference between the fm continuous wave and the second reflected wave is obtained; and then, calculating the distance between the liquid level in the water receiving container 108 and the detection device 106 according to a second calculation formula according to the third frequency difference, the fourth frequency difference, the propagation speed of the frequency modulated continuous wave and the absolute value of the frequency modulated slope, and controlling the water storage device to stop water outlet according to the distance between the liquid level in the water receiving container 108 and the detection device 106.

Specifically, when the distance between the liquid level in the water receptacle 108 and the detection device 106 is smaller than the second preset distance, which indicates that the water receptacle 108 has completed receiving water, the water storage device is controlled to stop discharging water, so as to prevent the water in the water receptacle 108 from overflowing.

Example five:

a fifth embodiment of the present invention provides a drinking water system, comprising: a water receiving container 108; and a drinking device according to any of the above embodiments (this embodiment is not shown).

The drinking water system that this embodiment provided includes: a water receiving container 108 and a drinking device as described in any of the embodiments above. Therefore, the overall beneficial effects of the drinking water device are not discussed one by one.

Wherein, the water receiving container 108 can be arranged in the water receiving area 104 of the cup body, and the water storage device can supply water for the water receiving container 108.

Example six:

a sixth embodiment of the present invention provides a control method of a drinking water apparatus, as shown in fig. 2, the control method including:

step 202, controlling a detection device of the drinking equipment to emit frequency-modulated continuous waves towards a water receiving area;

step 204, controlling the detection device to receive a first reflected wave formed by the frequency-modulated continuous wave after being reflected by the water receiving container;

and step 206, controlling the water outlet of the water storage device of the drinking water equipment according to the frequency modulated continuous wave and the first reflected wave.

According to the control method of the drinking water equipment, the detection device can be controlled to emit frequency-modulated continuous waves towards the water receiving area of the body, and the frequency-modulated continuous waves are reflected after encountering the water receiving container in the water receiving area and generate first reflected waves towards the water receiving container; particularly, a frequency difference exists between the first reflected wave and the frequency modulation continuous wave, so that the state of the water receiving container can be known according to the frequency difference, water outlet of the water storage device is controlled, and non-contact automatic water outlet control is achieved. In addition, because the frequency modulation continuous wave is not influenced by natural light, and the detected object is sensitive to the frequency modulation continuous wave, the possibility of failure detection of the frequency modulation continuous wave is avoided, the detection accuracy and reliability of the water receiving container are further improved, and the control precision of the water drinking equipment is further improved.

According to the control method of the drinking equipment, the water storage device is controlled to automatically discharge water through the frequency-modulated continuous waves and the first reflected waves formed by the frequency-modulated continuous waves after the frequency-modulated continuous waves meet the water receiving container and are reflected, non-contact automatic water discharge control can be achieved, the control precision is more accurate, and the control reliability is higher.

In this embodiment, further, in the process of controlling the detection device to emit the fm continuous wave toward the water receiving area, in the same scanning period, the detection device is controlled to emit the fm continuous wave toward the water receiving area with the fm slope greater than 0 and the fm slope less than 0 in sequence. Based on the above arrangement, the frequency modulated continuous wave and the first reflected wave in the same scanning period are enabled to have a rising edge and a falling edge at the same time, so that the control device can acquire the frequency difference of the rising edge and the falling edge respectively. Specifically, in a scanning period, the detection device is controlled to emit triangular waves to the water receiving area.

Example seven:

a seventh embodiment of the present invention provides a control method of a drinking water apparatus, as shown in fig. 3, the control method including:

step 302, controlling a detection device of the drinking equipment to emit frequency-modulated continuous waves towards a water receiving area;

step 304, controlling the detection device to receive a first reflected wave formed by the reflection of the frequency-modulated continuous wave by the water container;

step 306, acquiring a first frequency difference between the frequency modulated continuous wave and the first reflected wave at the stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with the frequency modulation slope larger than 0;

308, acquiring a second frequency difference between the frequency modulated continuous wave and the first reflected wave at the stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with the frequency modulation slope smaller than 0;

step 310, calculating the movement speed of the water receiving container relative to the detection device according to the first frequency difference, the second frequency difference and the wavelength of the frequency modulated continuous wave;

and step 312, controlling the water storage device to discharge water according to the movement speed of the water receiving container relative to the detection device.

In the control method of the drinking water apparatus provided in this embodiment, in the process of controlling the water storage device to discharge water according to the fm continuous wave and the first reflected wave, in the process of the detection device transmitting the fm continuous wave toward the water receiving area with an fm slope greater than 0, a first frequency difference between the fm continuous wave and the first reflected wave is obtained, and in the process of the detection device transmitting the fm continuous wave toward the water receiving area with an fm slope less than 0, a second frequency difference between the fm continuous wave and the first reflected wave is obtained; and then, calculating the movement speed of the water receiving container relative to the detection device according to the first calculation formula according to the first frequency difference, the second frequency difference and the wavelength of the frequency modulated continuous wave. Particularly, after the movement speed of the water receiving container relative to the detection device in the water receiving area is obtained, whether the user has the water receiving behavior or not can be judged, and then the water storage device is controlled to store water.

In addition, in the present embodiment, step 302 and step 304 are the same as in the sixth embodiment, and the beneficial effects thereof will not be repeatedly discussed.

Example eight:

an eighth embodiment of the present invention provides a control method of a drinking water apparatus, as shown in fig. 4, the control method including:

step 402, controlling a detection device of the drinking equipment to emit frequency-modulated continuous waves towards a water receiving area;

step 404, controlling the detection device to receive a first reflected wave formed by the frequency-modulated continuous wave after being reflected by the water container;

step 406, acquiring a first frequency difference between the frequency modulated continuous wave and the first reflected wave at a stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with a frequency modulation slope larger than 0;

step 408, acquiring a second frequency difference between the frequency modulated continuous wave and the first reflected wave at a stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with a frequency modulation slope smaller than 0;

step 410, calculating the movement speed of the water receiving container relative to the detection device according to the first frequency difference, the second frequency difference and the wavelength of the frequency modulated continuous wave;

step 412, calculating the distance between the water receiving container and the detection device according to the first frequency difference, the second frequency difference, the propagation speed of the frequency modulation continuous wave and the absolute value of the frequency modulation slope;

and step 414, controlling the water storage device to discharge water according to the movement speed and distance of the water receiving container relative to the detection device.

After the step of calculating the movement speed of the water receiving container relative to the detection device according to the first frequency difference, the second frequency difference, and the wavelength of the frequency-modulated continuous wave, the method for controlling a drinking device according to this embodiment further includes: calculating the distance between the water receiving container and the detection device according to the first frequency difference, the second frequency difference, the propagation speed of the frequency modulation continuous wave and the absolute value of the frequency modulation slope; and controlling the water storage device to discharge water according to the movement speed and distance of the water receiving container relative to the detection device.

According to the technical scheme, after the movement speed of the water receiving container relative to the detection device is obtained through calculation, the distance of the water receiving container relative to the detection device is further calculated according to a second calculation formula, and then water outlet of the water storage device is controlled according to the movement speed and the distance of the water receiving container relative to the detection device.

In addition, steps 402 to 410 in this embodiment are the same as those in the seventh embodiment, and the beneficial effects thereof will not be repeated.

Example nine:

a ninth embodiment of the present invention provides a control method of a drinking water apparatus, as shown in fig. 5, the control method including:

step 502, controlling a detection device of the drinking equipment to emit frequency-modulated continuous waves towards a water receiving area;

step 504, controlling the detection device to receive a first reflected wave formed by the frequency-modulated continuous wave after being reflected by the water container;

step 506, controlling water outlet of a water storage device of the drinking water equipment according to the frequency modulated continuous wave and the first reflected wave;

step 508, in the process of water outlet of the water storage device, controlling the detection device to receive a second reflected wave formed after the frequency-modulated continuous wave meets the liquid level in the water receiving container;

and step 510, controlling the water storage device to stop water outlet according to the frequency modulated continuous wave and the second reflected wave.

In the control method of the drinking water equipment provided by the embodiment, in the process of water outlet of the water storage device, after the frequency-modulated continuous waves meet the liquid level in the water receiving container, second reflected waves facing the detection device are formed through reflection; because the liquid level in the water receiving container rises continuously, a certain frequency difference exists between the second reflected wave and the frequency-modulated continuous wave; according to the frequency modulation continuous wave and the second reflected wave, the position of the liquid level in the water receiving container can be determined, and then the water storage device is controlled to stop water outlet, so that quantitative water outlet of the water drinking equipment is realized, and water in the water receiving container is prevented from overflowing. Meanwhile, the whole process does not need user contact operation, non-contact automatic water outlet control can be realized, the control precision is more accurate, and the control reliability is higher.

In this embodiment, further, in the process of controlling the water storage device to stop discharging water according to the fm continuous wave and the second reflected wave, in the process of the detection device emitting the fm continuous wave toward the water receiving area with an fm slope larger than 0, a third frequency difference between the fm continuous wave and the second reflected wave is obtained, and in the process of the detection device emitting the fm continuous wave toward the water receiving area with an fm slope smaller than 0, a fourth frequency difference between the fm continuous wave and the second reflected wave is obtained; and then, calculating the distance between the liquid level in the water receiving container and the detection device according to a second calculation formula according to the third frequency difference, the fourth frequency difference, the propagation speed of the frequency-modulated continuous wave and the absolute value of the frequency-modulated slope, and controlling the water storage device to stop water outlet according to the distance between the liquid level in the water receiving container and the detection device.

Example ten:

a tenth embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, is capable of implementing the steps of the method for controlling a water fountain according to any one of the above embodiments.

The present embodiment provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, can implement the steps of the control method of the drinking water device according to any of the above embodiments. Therefore, all the advantages of the control method of the drinking water device are not discussed herein.

In any of the above embodiments, the detection device is an FMCW radar.

In any of the above embodiments, the frequency modulated continuous wave is a triangular wave, a sawtooth wave, or the like.

In a specific embodiment, the drinking equipment provided by the invention adopts FMCW radar to emit triangular waves.

In any of the above embodiments, the first calculation formula is:

wherein, R represents the distance between the object to be detected and the detection device (namely the relative distance between the water receiving container or the liquid level in the water receiving container and the detection device); c represents the propagation speed (i.e., the speed of light) of the frequency modulated continuous wave; delta t represents the time required for the frequency modulated continuous wave to return to the detection device after being reflected; k represents the chirp rate of the chirp (taking a positive value, i.e., the positive value of the slope of the straight line representing the chirp in fig. 6 is a known value); Δ f1 represents the frequency difference between the continuous frequency modulated wave and the reflected wave at time t1 (i.e., the first frequency difference and the third frequency difference, measured values); Δ f2 represents the frequency difference between the FM continuous wave and the reflected wave at time t2 (i.e., the second frequency difference and the fourth frequency difference, measured values).

In any of the above embodiments, the second calculation formula is:

wherein V represents the moving speed of the object to be detected relative to the detection device (i.e. the moving speed of the water receiving container or the liquid level in the water receiving container relative to the detection device); λ represents the wavelength of the frequency modulated continuous wave; Δ f1 represents the frequency difference (i.e., the first frequency difference and the third frequency difference) between the continuous frequency-modulated wave and the reflected wave at time t 1; Δ f2 represents the frequency difference between the FM continuous wave and the reflected wave at time t2 (i.e. the second frequency difference and the fourth frequency difference).

Further, as shown in fig. 6, the abscissa represents time and the ordinate represents frequency; the solid line in the figure represents a frequency-modulated continuous wave generated by the detection means, and the dotted line in the figure represents a reflected wave after being reflected by the target object; in the figure, B represents the scanning bandwidth of the frequency modulated continuous wave; in the figure, T represents the scanning period of the frequency modulated continuous wave; Δ f1 is the frequency difference between the frequency modulated continuous wave and the reflected wave at time t1 of the rising edge; Δ f2 is the frequency difference between the frequency modulated continuous wave and the reflected wave at time t2 of the falling edge; Δ t1 is the time difference from the emission of the frequency modulated continuous wave to the return of the reflected wave to the detection means during the rising edge; at 2 is the time difference during the falling edge from the emission of the frequency modulated continuous wave to the return of the reflected wave to the detection means.

In particular, if there is no doppler frequency, the frequency difference Δ f1 during the rising edge is equal to the frequency difference Δ f2 during the falling edge. For moving objects, the frequency difference Δ f1 during the rising edge is different from the frequency difference Δ f2 during the falling edge, and the distance and the speed are calculated by the two frequency differences.

The specific embodiment is as follows:

as shown in fig. 1, the drinking device provided by the present invention selects an FMCW radar as a detection device, the detection device emits a continuous wave (i.e., a frequency modulated continuous wave) with a variable frequency within a frequency sweep period, a reflected wave reflected by a target object has a certain frequency difference from the emitted wave, and distance and speed information between the target object and the FMCW radar can be obtained by measuring the frequency difference.

In a specific embodiment, as shown in fig. 6, the modulation scheme of the detection device 106 is a triangular wave, wherein a solid line represents a frequency-modulated continuous wave generated by the detection device 106, and a dotted line represents a reflected wave reflected by the target object. As is clear from fig. 6, after the frequency modulated continuous wave is transmitted by the target, the reflected wave has a delay, and in the change of the triangular frequency, the distance measurement can be performed on both the rising edge and the falling edge; if there is no Doppler frequency, the frequency difference Δ f1 during the rising edge is equal to the frequency difference Δ f2 during the falling edge. For a moving object, the frequency difference Δ f1 during the rising edge is different from the frequency difference Δ f2 during the falling edge, and we can calculate the distance and the speed by these two frequency differences, and the specific calculation formula is as follows:

wherein R represents a distance between the object to be detected and the detection device 106 (i.e., a relative distance between the water receptacle 108 or a liquid level in the water receptacle 108 and the detection device 106); c represents the propagation speed (i.e., the speed of light) of the frequency modulated continuous wave; k represents the frequency modulation slope of the frequency modulation continuous wave (a positive value is taken in the calculation formula and is a known value); Δ f1 represents the frequency difference (the parameter value to be measured) between the frequency modulated continuous wave and the reflected wave at the time t 1; Δ f2 represents the frequency difference (the value of the parameter to be measured) between the frequency modulated continuous wave and the reflected wave at time t 2.

The FMCW radar based on the principle is arranged inside the water dispenser body 102, the detection range is the water taking area of the water receiving container 108, and whether the water receiving container 108 is placed in the water taking area is identified by detecting whether a moving object (the water receiving container 108) exists or not and distance information embodied by reflected waves; the water adding process can be carried out after the water receiving container 108 is detected to be placed; in the water adding process, liquid level information is obtained through distance information fed back by the FMCW radar, and therefore quantitative water outlet is achieved.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water dispensing apparatus, comprising:

the water receiving device comprises a body, wherein a water receiving area is arranged on the body;

the water storage device is arranged on the body;

the detection device is arranged on the body and can transmit and receive frequency modulation continuous waves;

a storage device storing a computer program;

a control device that, when executing the computer program, implements:

controlling the detection device to emit frequency-modulated continuous waves towards the water receiving area;

controlling the detection device to receive a first reflected wave formed by reflecting the frequency-modulated continuous wave by a water container;

controlling the water storage device to discharge water according to the frequency modulated continuous wave and the first reflected wave;

the control device respectively acquires the frequency difference between the rising edge and the falling edge, judges whether the water receiving container is in an operating state according to the frequency difference between the rising edge and the falling edge, and calculates the motion state of the water receiving container so as to control the water storage device to discharge water according to the motion state of the water receiving container.

2. The drinking apparatus as claimed in claim 1, wherein the step of controlling the detection device to emit frequency-modulated continuous waves towards the water receiving area includes:

and in a scanning period, controlling the detection device to emit the frequency modulation continuous wave towards the water receiving area according to the frequency modulation slope larger than 0 and the frequency modulation slope smaller than 0.

3. The water dispenser of claim 2, wherein the step of controlling the water storage device to discharge water according to the frequency modulated continuous wave and the first reflected wave comprises:

acquiring a first frequency difference between the frequency modulated continuous wave and the first reflected wave at a stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with a frequency modulation slope larger than 0;

acquiring a second frequency difference between the frequency modulated continuous wave and the first reflected wave at the stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with a frequency modulation slope smaller than 0;

calculating the movement speed of the water receiving container relative to the detection device according to the first frequency difference, the second frequency difference and the wavelength of the frequency modulation continuous wave;

and controlling the water storage device to discharge water according to the movement speed of the water receiving container relative to the detection device.

4. The water dispenser of claim 3, wherein the step of calculating the speed of movement of the receptacle relative to the detection device based on the first frequency difference, the second frequency difference, and the wavelength of the frequency modulated continuous wave is further followed by:

calculating the distance between the water receiving container and the detection device according to the first frequency difference, the second frequency difference, the propagation speed of the frequency modulation continuous wave and the absolute value of the frequency modulation slope;

and controlling the water storage device to discharge water according to the movement speed and distance of the water receiving container relative to the detection device.

5. The water fountain according to any one of claims 2-4, wherein the control device when executing the computer program is further operable to:

in the process of water outlet of the water storage device, the detection device is controlled to receive a second reflected wave formed by the frequency-modulated continuous wave after being reflected by the liquid level in the water receiving container;

and controlling the water storage device to stop water outlet according to the frequency modulation continuous wave and the second reflected wave.

6. The water dispenser of claim 5, wherein the step of controlling the water storage device to stop discharging water according to the frequency modulated continuous wave and the second reflected wave comprises:

acquiring a third frequency difference between the frequency-modulated continuous wave and the second reflected wave at the stage that the detection device emits the frequency-modulated continuous wave towards the water receiving area with a frequency-modulated slope larger than 0;

acquiring a fourth frequency difference between the frequency modulated continuous wave and the second reflected wave at a stage that the detection device emits the frequency modulated continuous wave towards the water receiving area with a frequency modulation slope smaller than 0;

calculating the distance between the liquid level in the water receiving container and the detection device according to the third frequency difference, the fourth frequency difference, the propagation speed of the frequency-modulated continuous wave and the absolute value of the frequency-modulated slope;

and controlling the water storage device to stop water outlet according to the distance between the liquid level in the water receiving container and the detection device.

7. A drinking water system, comprising:

a water receiving container; and

a drinking device as claimed in any one of claims 1 to 6.

8. A method of controlling a water fountain, comprising:

controlling a detection device of the drinking equipment to emit frequency-modulated continuous waves towards a water receiving area;

controlling the water outlet of a water storage device of the drinking equipment according to the frequency modulated continuous wave and the first reflected wave;

the frequency modulation continuous wave and the first reflected wave have a rising edge and a falling edge at the same time in the same scanning period, frequency difference between the rising edge and the falling edge is obtained respectively, whether the water receiving container is in an operation state or not is judged according to the frequency difference between the rising edge and the falling edge, the motion state of the water receiving container is calculated, and the water storage device is controlled to discharge water according to the motion state of the water receiving container.

9. The method for controlling a drinking device according to claim 8, wherein the step of controlling the detection device of the drinking device to emit frequency-modulated continuous waves towards the water receiving area specifically comprises:

10. The method for controlling a drinking water apparatus according to claim 9, wherein the step of controlling the water storage device of the drinking water apparatus to discharge water according to the frequency modulated continuous wave and the first reflected wave specifically comprises:

11. The method for controlling a drinking device according to claim 10, wherein the step of calculating the moving speed of the water container relative to the detection device according to the first frequency difference, the second frequency difference and the wavelength of the frequency-modulated continuous wave further comprises:

12. The method as claimed in any one of claims 9 to 11, wherein after the step of controlling the water storage device of the drinking water apparatus to discharge water according to the frequency modulated continuous wave and the first reflected wave, the method further comprises:

13. The method for controlling a drinking water apparatus according to claim 12, wherein the step of controlling the water storage device to stop discharging water according to the frequency modulated continuous wave and the second reflected wave specifically comprises:

14. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, is adapted to carry out the steps of the method of controlling a water fountain according to any one of claims 8 to 13.