Anti-interference touch shower head system and switching control method thereof

Abstract

The invention provides an anti-interference touch shower head system and a switching control method thereof, and relates to the technical field of shower head system control. The touch type water purifier is provided with a water inlet waterway and at least two water outlet waterways, and comprises a shell, a touch sensing module, a main control module and a capacitor electrically connected between the touch sensing module and the main control module, the touch sensing module is used for generating a trigger signal when being triggered by an external object; the capacitor is used for reducing the amplitude of the trigger signal; the main control module is used for receiving the trigger signal of which the amplitude is reduced by the capacitor, amplifying the trigger signal and judging whether the amplified trigger signal is generated by human body touch or not according to a preset threshold value; wherein the amplified signal is obtained by multiplying the signal by a multiplier. According to the invention, the capacitor is connected in series between the touch sensing module and the main control module, so that a human body touch sensing signal and a non-human body touch sensing signal can be distinguished, and rapid and accurate switching of water spray of the shower head is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of shower system control, and more particularly, to an anti-interference touch shower system and its switching control method. Background Art

[0002] The existing shower systems mainly switch the water flow in the following ways: one is to switch by manually turning the shower button; the second is to switch the water flow through the switching button on the storage table; the third is to switch the water flow through a capacitive touch method. When using the first method, it is inconvenient for users, and the mechanical structure of the shower is easily damaged, reducing the service life of the product. When using the second type of shower system when the user's line of sight is blocked, such as when washing hair, it is not easy to see the button clearly; while using a conventional capacitive touch shower system, it is easily affected by water droplets, foam, water mist, etc.

[0003] In view of this, the applicant has specifically proposed this application after studying the existing technologies. Summary of the Invention

[0004] The present invention aims to provide an anti-interference touch shower system and its switching control method to solve the disadvantages of the existing shower system, such as inconvenient use and easy damage of the switching button, and the susceptibility of conventional capacitive touch products to water droplets, foam, and water mist.

[0005] To solve the above technical problems, the present invention is achieved by the following technical solutions:

[0006] An anti-interference touch shower system is provided with an inlet waterway and at least two outlet waterways, and includes a housing, a touch sensing module, and a main control module; characterized in that it further includes a capacitor electrically connected between the touch sensing module and the main control module.

[0007] The touch sensing module is used to generate a trigger signal when triggered by an external object;

[0008] The capacitor is used to reduce the amplitude of the trigger signal;

[0009] The main control module is used to receive the trigger signal with the amplitude reduced by the capacitor, amplify it, and determine whether the amplified trigger signal is generated by human touch according to a preset threshold; wherein, the amplified signal is obtained by multiplying the signal by a multiplier.

[0010] Preferably, the housing is electrically connected to the ground terminal of the main control module to avoid interfering with the trigger signal generated by the touch sensing module.

[0011] Preferably, the housing includes an upper shell and a lower shell; the touch sensing module is joined between the upper shell and the lower shell.

[0012] Preferably, it further includes a waterway switching module electrically connected to the main control module; the waterway switching module is used to switch and connect the water inlet waterway to the at least two water outlet waterways according to the signal of the main control module, so as to switch the water outlet mode.

[0013] Preferably, it further includes a power supply module, and the power supply module is an energy storage device capable of providing direct current or a rectifying device capable of converting alternating current into direct current; the power supply module is used to supply power to the main control module, the touch sensing module and the waterway switching module.

[0014] Preferably, the trigger signal includes a human body touch sensing signal and a non-human body touch sensing signal.

[0015] Preferably, the non-human body touch sensing signal includes: a running water signal, a foam signal or a water mist signal.

[0016] The present invention also provides a switching control method for an anti-water mist interference capacitive touch shower head, which is applied to an anti-interference touch shower system as described above, including:

[0017] Obtain the trigger signal generated when the touch sensing module is triggered by an external object;

[0018] Reduce the amplitude of the trigger signal;

[0019] Amplify the trigger signal after reducing the amplitude;

[0020] Judge whether the amplified signal is a signal generated by human touch according to a preset threshold; if so, switch the water outlet mode.

[0021] To sum up, compared with the prior art, the present invention has the following beneficial effects:

[0022] By connecting a capacitor in series between the touch sensing module and the main control module, the present invention reduces the amplitude of the received trigger signal. After further amplifying and processing the signal using a software algorithm, it can distinguish the human body touch sensing signal from the non-human body touch sensing signal, and realize the fast and accurate switching of the shower water. The present invention is applicable to high humidity and high temperature environments, can overcome the disadvantages of inconvenient use and easy damage of traditional mechanical shower heads for switching water flowers, and overcome the defects that conventional capacitive touch is easily affected by water droplets, foam and water mist, and has the characteristics of fast response, accuracy and stable state. Description of the Drawings

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 Schematic diagram of an anti-interference touch shower system provided for Embodiment 1.

[0025] Figure 2 Touch induction signal waveform diagram of the shower system without a series capacitor provided for Embodiment 1.

[0026] Figure 3 Touch induction signal waveform diagram collected by the shower system with a series capacitor provided for Embodiment 1.

[0027] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments. Specific Embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Embodiment 1

[0030] Generally, the core of capacitive touch sensing lies in a group of conductors that interact with the electric field. The skin of human tissue, as a lossy electrolyte, is equivalent to a conductive electrode. When a finger (or other conductive object) approaches or touches a capacitive touch screen, it changes the electric field distribution on the touch screen, thereby increasing the conductive surface area of the capacitive system. This change in the electric field is detected by the sensor and converted into an electrical signal.

[0031] The sensor (such as the touch sensing module) in the capacitive touch sensing shower system captures the electrical signals generated by finger touches or other conductive objects such as running water, foam, and water mist. The electrical signal is converted into a digital signal and transmitted to the main control module through the circuit.

[0032] The main control module analyzes and processes the received signals to determine the user's touch action and the corresponding water outlet mode switching instruction.

[0033] The main control module transmits the water outlet mode switching instruction to the waterway switching module electrically connected to the main control module. The waterway switching module switches the water outlet waterway according to the instruction, thereby changing the water outlet mode of the shower head. When the switching of the water outlet mode is completed, the waterway switching module can also feedback an action signal to the main control module to inform that the water switching operation has been completed.

[0034] As Figure 1 shown, this embodiment provides an anti-interference touch shower system, which includes a housing, a touch sensing module and a main control module; there is an inlet waterway and at least two outlet waterways (not shown in the figure) in the touch shower system; it also includes a capacitor electrically connected between the touch sensing module and the main control module;

[0035] The touch sensing module is used to generate a trigger signal when triggered by an external object;

[0036] The capacitor is used to reduce the amplitude of the trigger signal;

[0037] The main control module is used to receive the trigger signal with the amplitude reduced by the capacitor, amplify it and determine whether the amplified trigger signal is generated by human touch according to a preset threshold; wherein, the amplified signal is to multiply the signal by a multiplier.

[0038] Further, the trigger signal includes a human touch sensing signal and a non-human touch sensing signal, where the non-human touch sensing signal is such as a flowing water signal, a foam signal, a water mist signal, etc.

[0039] In this embodiment, the capacitor includes a chip capacitor. The chip capacitor is fully called a multilayer (stacked, laminated) chip ceramic capacitor, and its English full name is Multiplayer Ceramic Chip Capacitors. The working principle of the chip capacitor is to form an electric field between two conductive plates to store electric charges. When the chip capacitor is connected to a circuit, it will form an electric field between the two electrodes, thereby storing electric charges. When the voltage in the circuit changes, the capacitor will absorb or release electric charges to maintain the stability of the circuit.

[0040] In this embodiment, a chip capacitor is connected in series between the touch sensing module and the main control module to equally reduce the signal transmitted by the touch sensing module and received, and then send it to the main control module. Then, the main control module will receive the signal equally reduced by the chip capacitor, amplify it by the same multiple, judge whether the amplified trigger signal is generated by human touch according to a preset threshold, and output and issue a water mode switching instruction.

[0041] In a preferred embodiment, the housing is electrically connected to the ground terminal of the main control module so that the signal transmitted from the touch sensing module to the main control module is protected and not easily interfered. The housing includes an upper shell and a lower shell; the touch sensing module is joined to the upper shell and the lower shell.

[0042] Further, this embodiment further includes a water path switching module electrically connected to the main control module. The main control module issues a water mode switching instruction to the water path switching module; the water path switching module switches and connects the water inlet path to at least two water outlet paths according to the electrical signal of the main control module, thereby changing the water outlet mode of the shower head. When the switching of the water outlet mode is completed, the water path switching module feeds back a signal to the main control module.

[0043] Further, this embodiment further includes a power supply module, and the power supply module is an energy storage device capable of providing direct current or a rectifying device capable of converting alternating current into direct current; the power supply module is used to supply power to the main control module, the touch sensing module and the water path switching module.

[0044] The power supply module mentioned in this embodiment can be a device that uses several lithium batteries as an energy storage device and supplies power after step-down, or a rectifying device that converts alternating current into direct current, which is not limited herein.

[0045] When the human touch sensing signal and the non-human touch sensing signal pass through the chip capacitor, due to the filtering characteristics of the capacitor, the high-frequency noise in the two signals may be suppressed, making the signal smoother. After the signal is processed by the chip capacitor, software algorithms are used to further amplify and process the signal. Since the two signals may have similar amplitudes in the original state, the amplification multiple is used to ensure that the difference between the amplified signals is obvious enough. After amplifying the signal, a suitable threshold needs to be set to distinguish the human touch sensing signal from the non-human touch sensing signal. This threshold can be determined through experiments to ensure that the two signals can be accurately distinguished during actual use.

[0046] Further, software algorithms such as filtering algorithms, Fourier transform algorithms, logarithmic amplification algorithms, etc., make the signal have higher resolution when the change is small, and maintain a certain observability when the change is large.

[0047] As Figure 2 and Figure 3 shown by the comparison of the human hand and water flow touch sensing signals without and with a series capacitor, the series capacitor can amplify the difference between the two, so as to distinguish the human hand touch sensing signal from the water flow touch signal.

[0048] By connecting a capacitor in series in the hardware circuit, the variation difference between flowing water, foam, water mist and human hand touch is enlarged, so that the software algorithm of the main control module can distinguish and identify flowing water, foam, water mist and human hand touch, meeting the touch anti-interference of the touch sensing shower head in high-humidity and high-temperature complex environments such as bathrooms.

[0049] The following experiments respectively simulated the effects of water droplets, foam, and water mist on the touch function of this shower head system.

[0050] Effect of water droplets: Spraying water droplets on the shower head and the touch ring does not cause misoperation, and with water droplets hanging, the touch function can be normally sensed;

[0051] Effect of foam: Spraying foam on the shower head and the touch ring does not cause misoperation, and with foam hanging, the touch function can be normally sensed;

[0052] Effect of water mist: Spraying water mist on the shower head and the touch ring does not cause misoperation, and with water mist hanging, the touch function can be normally sensed.

[0053] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0054] By connecting a capacitor in series between the touch sensing module and the main control module, the amplitude of the received trigger signal is reduced. After further amplifying and processing the signal using a software algorithm, the human body touch sensing signal can be distinguished from the non-human body touch sensing signal, realizing the rapid and accurate switching of the shower head water spray. The present invention is applicable to high-humidity and high-temperature environments, can overcome the disadvantages of inconvenient use and easy damage of traditional mechanical shower heads for switching water sprays, and overcome the defect that conventional capacitive touch is easily affected by water droplets, foam, and water mist, having the characteristics of fast response, accuracy, and stable state.

[0055] Embodiment 2

[0056] The second embodiment of the present invention further provides a switching control method for an anti-water-mist-interference capacitive touch shower head, which is applied to an anti-interference touch shower head system as described above, and is characterized by including:

[0057] Obtaining a trigger signal generated when the touch sensing module is triggered by an external object;

[0058] Reducing the amplitude of the trigger signal;

[0059] Amplifying the trigger signal with the reduced amplitude;

[0060] Judge whether the amplified signal is a signal generated by human touch according to a preset threshold; if so, switch to the water output mode.

[0061] In several embodiments provided by the embodiments of the present invention, it should be understood that the disclosed apparatus and method can also be implemented in other ways. The apparatus and method embodiments described above are merely illustrative. For example, the flowcharts in the drawings show the possible architectures, functions, and operations of apparatuses, methods, and computer program products according to multiple embodiments of the present invention. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, and the module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, as well as the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0062] In addition, the functional modules in each embodiment of the present invention may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.

[0063] When the above-mentioned function is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or a part of this technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, an electronic device, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media that can store program codes such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs. It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0064] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise.

[0065] It should be understood that the term "and / or" used herein is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0066] Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0067] The "first / second" mentioned in the embodiments is only used to distinguish similar objects and does not represent a specific order for the objects. It can be understood that the "first / second" can be interchanged in a specific order or sequence when permitted. It should be understood that the objects distinguished by the "first / second" can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order other than those illustrated or described herein.

[0068] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An anti-interference touch shower system is provided with a water inlet channel and at least two water outlet channels, and includes a housing, a touch sensing module and a main control module; it is characterized in that, It further includes a capacitor electrically connected between the touch sensing module and the main control module; wherein, the touch sensing module is configured to generate a trigger signal when triggered by an external object; the capacitor is configured to reduce the amplitude of the trigger signal; the main control module is configured to receive the trigger signal with reduced amplitude by the capacitor, amplify it, and determine whether the amplified trigger signal is generated by human touch according to a preset threshold; wherein, the amplified signal is obtained by multiplying the signal by a multiplier.

2. The anti-interference touch shower system according to claim 1, wherein , the housing is electrically connected to the ground terminal of the main control module to avoid interfering with the trigger signal generated by the touch sensing module.

3. The anti-interference touch shower system according to claim 1, characterized in that , the housing includes an upper shell and a lower shell; the touch sensing module is engaged between the upper shell and the lower shell.

4. The anti-interference touch shower system according to claim 1, characterized in that , it further includes a water path switching module electrically connected to the main control module; the water path switching module is configured to switch the inlet water path to be connected and communicated with at least two outlet water paths according to the signal of the main control module to switch the water outlet mode.

5. The anti-interference touch shower system according to claim 4, characterized in that , it further includes a power supply module, the power supply module is an energy storage device capable of providing direct current, or a rectifying device capable of converting alternating current into direct current; the power supply module is configured to supply power to the main control module, the touch sensing module and the water path switching module.

6. The anti-interference touch shower system according to claim 1, wherein , the trigger signal includes a human touch sensing signal and a non-human touch sensing signal.

7. The anti-interference touch shower system according to claim 6, characterized in that , the non-human touch sensing signal includes: a flowing water signal, a foam signal or a water mist signal.

8. A switching control method for an anti-water mist interference capacitive touch shower head, which is applied to an anti-interference touch shower head system as described in any one of claims 1-7, characterized in that , including: obtaining the trigger signal generated when the touch sensing module is triggered by an external object; reducing the amplitude of the trigger signal; amplifying the trigger signal with reduced amplitude; judging whether the amplified signal is a signal generated by human touch according to a preset threshold; if so, switching the water outlet mode.

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