CN111966227A - Photoelectric gesture control device and method and water heater - Google Patents

Abstract

The invention discloses a photoelectric gesture control device and method and a water heater. The apparatus includes a photocell matrix consisting of at least one photocell, a controller, and first and second sets of resistors. Each photocell in the photocell matrix includes an emitter, a collector and a base. The emitters of each phototube in the same column of the phototube matrix are connected to the first end of the same resistor in the first resistor set, and the emitters of each phototube in different columns are respectively connected to the first ends of different resistors in the first resistor set. The first end of each resistor in a resistor set is connected to the controller. The collectors of the photocells in the same row in the photocell matrix are connected to the first ends of the same resistor in the second resistor set, and the collectors of the photocells in different rows are respectively connected to the first ends of different resistors in the second resistor set. The second end of each resistor in the two resistor sets is the controller. When in use, it will not emit visible light and invisible light, reducing light pollution and improving harmony with nature.

Description

Photoelectric gesture control device and method and water heater

technical field

The invention relates to the technical field of equipment control, in particular to a photoelectric gesture control device and method and a water heater.

Background technique

At present, the wake-up and operation methods of the interactive panels of gas water heaters on the market are mainly mechanical buttons, touch buttons and/or infrared gestures. If the situation is unclear, it will bring inconvenience to the user. The touch buttons are generally capacitive buttons, which are greatly affected by the environment; the infrared gesture module is greatly affected by the ambient light conditions, and sometimes the touch or gesture is insensitive; and the mechanical buttons are gradually replaced by touch or gestures in the mid-to-high-end field. .

In view of this, there is an urgent need for a system and method for realizing gesture recognition using the photoelectric effect, which does not emit visible light and invisible light to the outside, reduces light pollution, and improves harmony with nature.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a photoelectric gesture control device and method and a water heater, which realize gesture recognition based on the photoelectric effect, do not emit visible light and invisible light to the outside, and reduce light pollution.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

In one aspect, the present invention provides a photoelectric gesture control device. The photoelectric gesture control device includes a photocell matrix composed of at least one photocell, a controller, a first resistor set and a second resistor set, wherein each photocell in the photocell matrix includes an emitter, a collector and a base. The emitter of each photocell in the same column in the photocell matrix is connected to the first end of the same resistor in the first resistor set, and the emitters of each photocell in different columns are respectively connected to the first resistor set The first ends of different resistors in the first resistor set are connected to the controller; the collectors of the photocells in the same row in the photocell matrix are connected to the same resistors in the second resistor set. The first end of a resistor, and the collectors of each photocell in different rows are respectively connected to the first ends of different resistors in the second resistor set, and the second ends of each resistor in the second resistor set are connected to the control device.

Optionally, for the photoelectric gesture control device, the second end of each resistor in the first resistor set is grounded, and the collector of each photocell in the photocell matrix is connected to the input voltage.

Optionally, the photoelectric gesture control device further includes a sensing panel, and the photocell matrix is embedded in the sensing panel.

Optionally, the photoelectric gesture control device further includes a casing panel, and the sensing panel is embedded in the casing panel.

In another aspect, the present invention provides a water heater. The water heater includes the above-mentioned photoelectric gesture control device.

In another aspect, the present invention provides a control method for the above-mentioned photoelectric gesture control device. The control method includes: dividing a photocell matrix into each gesture recognition area; when it is detected that the photocell in the gesture recognition area changes from an on state to an off state, recognizing that the gesture recognition area is shielded from light; according to the The position change of the shaded gesture recognition area on the photocell matrix and the duration of the shade are used to determine the gesture type.

Optionally, for the control method, the position of the gesture recognition area is determined by the coordinates of the photocells in the gesture recognition area, wherein the coordinates of the photocells are determined by the photocells in the photoelectric matrix. indicated by the row and column numbers.

Optionally, for the control method, it is determined that the voltage of the photocell's emitter changes from a high level to a low level to determine that the photocell changes from an on state to an off state.

Optionally, for the control method, the gesture type includes at least one of the following types: a gesture recognition area is continuously blocked from light for more than a preset period of time; the first gesture recognition area is changed from being blocked from light to the same as the first gesture recognition area. The second gesture recognition area adjacent to the recognition area is shielded from light.

Optionally, for the control method, after the gesture type is determined, the method further includes: determining a function corresponding to the gesture type and executing the function corresponding to the gesture type.

Compared with the prior art, the main advantages of the technical solution of the present invention are as follows:

(1) The photoelectric gesture control device and method and the water heater provided by the embodiments of the present invention do not emit visible light and invisible light when in use, thereby reducing light pollution and improving harmony with nature.

(2) At night, all photocells will be turned off to reduce power consumption.

(3) Use the photocell panel to realize the gesture function without using the infrared gesture module.

(4) No complicated algorithms are required, and only simple matrix operations are needed to output gesture control instructions, and at the same time, the recognition efficiency is high, the accuracy is high, and the gesture positioning is accurate.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

1 is a schematic structural diagram of a photoelectric gesture control device provided in Embodiment 1 of the present invention;

Fig. 2 is the internal structure diagram of the photocell provided by an example of the present invention;

3A-3D are schematic diagrams of different parts of an optoelectronic display panel provided by an example of the present invention that are shielded by a light-shielding object;

4 is a flowchart of a control method of the photoelectric gesture control device shown in FIG. 1 according to Embodiment 3 of the present invention;

5 is a schematic diagram of a photocell provided by an example of the present invention;

FIG. 6A is a diagram showing the effect of turning on the photoelectric display when the photocell provided by an example of the present invention is not shielded by a shading object;

FIG. 6B is a diagram showing the effect of turning on the photoelectric display when the photocell provided by another example of the present invention is shielded by a shading object;

FIG. 7 is a flowchart of gesture judgment of a controller provided by an example of the present invention.

Detailed ways

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thoroughly understood, and will fully convey the scope of the present invention to those skilled in the art.

FIG. 1 is a schematic structural diagram of a photoelectric gesture control device according to Embodiment 1 of the present invention. FIG. 2 is an internal structural diagram of a photocell provided by an example of the present invention. As shown in Figure 1 and Figure 2. The photoelectric gesture control device provided by this embodiment includes a photocell matrix composed of at least one photocell 10 , a controller (MCU), a first resistor set and a second resistor set. Wherein, each photocell in the photocell matrix includes an emitter (E pole) 11 , a collector (C pole) 12 and a base (B pole) 13 . The emitters 11 of each photocell 10 in the same column of the photocell matrix are connected to the first end of the same resistor in the first resistor set, and the emitters 11 of each photocell 10 in different columns are respectively connected to different resistors in the first resistor set. The first end, the first end of each resistor in the first resistor set is connected to the controller. The collectors 12 of each photocell 10 in the same row in the photocell matrix are connected to the first end of the same resistor in the second resistor set, and the collectors 12 of each photocell 10 in different rows are respectively connected to different resistors in the second resistor set. The first end, the second end of each resistor in the second resistor set is connected to the controller. Among them, the photocell 10 is a material designed and manufactured based on the photoelectric effect, that is, photoelectricity. The photocell described in this article is a phototransistor. When there is light, the phototransistor is turned on, and when there is no light, the phototransistor is turned off. The photocell 10 sends an electrical signal to the controller when irradiated by visible light, and sends this information to the controller when the photocell 10 is blocked from light.

In this embodiment, the second end of each resistor in the first set of resistors may be grounded. The collector 12 of each photocell 10 in the photocell matrix may be connected to an input voltage. The photocell 10 may also include a photocell protective layer 14 .

Figure 1 only shows an example of a photocell matrix, which is used to illustrate the structure of the photoelectric gesture control device, not as a limitation on the number of photocells on the photocell matrix, nor as a limitation on the shape of the photocell matrix.

FIGS. 3A-3D are schematic diagrams of different parts of an optoelectronic display panel provided by an example of the present invention, which are shielded by light-shielding objects. As shown in FIGS. 3A-3D , the photoelectric gesture control device of this embodiment may further include a sensing panel 20 , and a photocell matrix is embedded in the sensing panel 20 . The induction panel is used to fix the shape of the photocell matrix, which can be a regular shape or an irregular shape. The photoelectric gesture control device of this embodiment may further include a casing panel 30 , and the sensing panel is embedded in the casing panel 30 .

Embodiment 2 of the present invention provides a water heater, which includes the above-mentioned photoelectric gesture control device.

FIG. 4 is a flowchart of the control method of the above-mentioned photoelectric gesture control device according to Embodiment 3 of the present invention.

As shown in FIG. 4, in step S410, the photocell matrix is divided into each gesture recognition area. A sub-area function can be specified, for example, the left part, the middle part and the right part of the sensing panel 20 in FIG. 3D can be respectively used as a gesture recognition area.

In step S420, when it is detected that the photocell in the gesture recognition area changes from an on state to an off state, it is recognized that the gesture recognition area is shielded from light.

As shown in Figure 1, Figure 2 and Figure 5, the photocell is generally used in the open state of the base (B pole), and a voltage is applied between the two terminals of the emitter (E pole) and the collector (C pole), In this state, when the light is incident on the surface of the base, the visible light as shown in Figure 2 illuminates the photocell. At this time, as shown in Figure 5, the photocell's base is prompted to generate a photoelectric effect and a current is generated, which makes the photocell on. Therefore, voltages are detected at the first ends of the resistors R5 to R10 in the first resistor set shown in FIG. 1 , and then it can be determined which part of the photocell is turned on. This embodiment operates in the reverse direction, and all the photocells are turned on at the beginning, as shown in FIG. 6A, and then shielded from visible light by the shade 40 as shown in FIG. 6B, as shown in FIG. 3A to 3D by the shade 4 Part of the photocell is shielded. At this time, the photocell shielded by the shade 40 shown in FIG. 3A to FIG. 3D loses the irradiation of visible light, so that the base of the photocell cannot generate current, so that the photocell is turned off. The light shielding object 40 is, for example, a user's hand.

In step S430, the gesture type is determined according to the change of the position of the shaded gesture recognition area on the photocell matrix and the duration of the shade. As an optional implementation manner, the position of the gesture recognition area may be determined by the coordinates of the photocells in the gesture recognition area. The coordinates of the photocells can be represented by the row numbers and column numbers of the photocells in the photoelectric matrix. The change of the photocell from the on state to the off state can be determined by the voltage of the photocell's emitter changing from a high level to a low level. The gesture type may include at least one of the following types: one gesture recognition area is continuously blocked from light for more than a preset period of time; the first gesture recognition area is changed from being blocked from light to a second gesture recognition area adjacent to the first gesture recognition area shaded. Specifically, the gesture types may include motion gestures from left to right, right to left, top to bottom, bottom to top, and long stay gestures. In addition, if different gesture recognition areas are blocked from light for more than a preset period of time, they can correspond to the same gesture type, so as to realize the same gesture function; they can also correspond to different gesture types, so as to realize different gesture functions respectively.

As shown in FIG. 3A to FIG. 3D , the shading object 40 moves, the controller (MCU) can detect the coordinates of the cut-off photocell, so the controller can determine that the shading object 40 moves from left to right, so as to determine the corresponding Gesture type. Conversely, if the shading object 40 moves as shown in FIGS. 3A to 3D , the controller can determine that the shading object 40 moves from right to left, thereby determining the corresponding gesture type.

The working state of the photocell forms the coordinates defined by the controller (MCU), and the controller calculates the motion trajectory of the gesture through the coordinates. Still taking the example in FIG. 1 as an example, all the photocells are turned on at the beginning. As shown in Figure 1, H1 to H4, L1 to L6 are all connected to the controller, and the controller will define a 6×4 matrix, in which the coordinates of the photocell Q1 are defined as Q1(L1, H1), the photoelectric The coordinates of the tube Q2 are defined as Q2(L2, H1), the coordinates of the photocell Q3 are defined as Q3(L3, H1), the coordinates of the photocell Q4 are defined as Q4(L4, H1)... The coordinates of the photocell Q24 are defined as Q24 (L6, H4). In this example, L1 means high level, ~L1 means low level; H1 means high level, ~H1 means low level, and so on, L2, L3...L6, H2, H3, H4 means high level Level; ~L2, ~L3...~L6, ~H2, ~H3, ~H4 refer to low level. When the photocell Q1 is shaded by the light-shielding object, the photocell Q1 is detected in the controller (MCU) as (~L1, H1), and at this time, the controller knows that the photocell Q1 is shaded.

If the photocell Q1 is shielded first, then the photocell Q2 is shielded, and then the photocell Q3 is shielded, the controller (MCU) detects that the photocell’s coordinates change as:

Q1 (L1, H1), Q2 (L2, H1), Q3 (L3, H1)

Q1 (~L1, H1), Q2 (L2, H1), Q3 (L3, H1)

Q1 (L1, H1), Q2 (~L2, H1), Q3 (L3, H1)

Q1 (L1, H1), Q2 (L2, H1), Q3 (~L3, H1)

Q1 (L1, H1), Q2 (L2, H1), Q3 (L3, H1)

According to the change of the coordinates, the controller can judge that the shade moves from left to right.

For example, as shown in Figure 7, the shading object shields the photocell Q1, the controller (MCU) detects the coordinates of the photocell Q1 and obtains the coordinate change, that is, from Q1 (L1, H1) to Q1 (~L1, H1) ), if the shielding photocell Q1 exceeds the preset time length T and is defined as the first gesture type, corresponding to the first gesture function, then the controller detects that the photocell Q1 (~L1, H1) exceeds the preset time length T, then execute The first gesture function.

After step S430, the control method of the photoelectric gesture control device of this embodiment may further include the step of: determining the function corresponding to the gesture type and executing the function corresponding to the gesture type.

The photoelectric gesture control device and method and the water heater of the embodiments of the present invention do not emit visible light and invisible light to the outside, thus reducing light pollution and improving harmony with nature. At night, the photocells are all turned off to reduce power consumption. Use the photocell panel to realize the gesture function without using the infrared gesture module. No complicated algorithms are required, and only simple matrix operations are needed to output gesture control instructions, and at the same time, the recognition efficiency is high, the accuracy is high, and the gesture positioning is accurate.

The above description is only an embodiment of the present invention, and does not limit the scope of protection of the claims of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related The technical field of the present invention is similarly included in the protection scope of the claims of the present invention.

Claims (10)

1. An optoelectronic gesture control device comprises a photocell matrix composed of at least one photocell, a controller, a first resistance set and a second resistance set, wherein,

each photoelectric tube in the photoelectric tube matrix comprises an emitting electrode, a collecting electrode and a base electrode;

emitting electrodes of all photoelectric tubes in the same row in the photoelectric tube matrix are connected with first ends of the same resistor in the first resistor set, emitting electrodes of all photoelectric tubes in different rows are respectively connected with first ends of different resistors in the first resistor set, and the first ends of all resistors in the first resistor set are connected with the controller;

the collecting electrodes of the phototube in the same row in the phototube matrix are connected with the first end of the same resistor in the second resistor set, the collecting electrodes of the phototube in different rows are respectively connected with the first ends of different resistors in the second resistor set, and the second end of each resistor in the second resistor set is connected with the controller.

2. The optoelectronic gesture control device as claimed in claim 1, wherein a second end of each resistor in the first set of resistors is connected to ground, and a collector of each photo cell in the photo cell matrix is connected to an input voltage.

3. The electro-optical gesture control device of claim 1 or 2, further comprising a sensing panel, the matrix of photocells being embedded in the sensing panel.

4. The electro-optical gesture control device of claim 3, further comprising a housing panel, the sensing panel embedded in the housing panel.

5. A water heater characterized by comprising the optoelectronic gesture control device of any one of claims 1-4.

6. A control method of the electro-optical gesture control apparatus according to any one of claims 1-4, comprising:

dividing the photoelectric tube matrix into gesture recognition areas;

when detecting that a photoelectric tube in the gesture recognition area is changed from a conducting state to a cut-off state, recognizing that the gesture recognition area is shielded;

and determining the gesture type according to the position change condition and the shading duration of the shaded gesture recognition area on the photoelectric tube matrix.

7. The control method according to claim 6, wherein the position of the gesture recognition area is determined by the coordinates of a photoelectric tube in the gesture recognition area, wherein the coordinates of the photoelectric tube are represented by the row number and the column number of the photoelectric tube in the photoelectric matrix.

8. The control method according to claim 6, wherein the change of the photo-electric tube from the on state to the off state is determined by a change of a voltage of an emitter of the photo-electric tube from a high level to a low level.

9. The control method of claim 6, wherein the gesture type comprises at least one of the following types:

a gesture recognition area is continuously shielded for more than a preset time;

the light shielding is changed from the first gesture recognition area to the second gesture recognition area adjacent to the first gesture recognition area.

10. The control method of claim 6, after the determining the gesture type, further comprising:

and determining a function corresponding to the gesture type and executing the function corresponding to the gesture type.

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