Control method of self-power-generation intelligent closestool based on gravity water tank

Abstract

The invention provides a control method of a self-power-generation intelligent closestool based on a gravity water tank, and the self-power-generation intelligent closestool comprises the gravity water tank, a water supply waterway, a flushing waterway, a closestool body, a self-power-generation device, an energy storage module, a controller, an electric control valve and an induction assembly, the self-power-generation device is arranged on the water supply waterway and / or the flushing waterway; the energy storage module is connected with the self-generating device and the controller, and the controller is connected with the electric control valve and the sensing assembly. The control method specifically comprises the following steps: acquiring a control signal after the closestool is used through the sensing assembly; the electric control valve is controlled to be opened according to the signal, so that the self-power-generating device generates power in the flushing water path flushing cleaning or flushing or water supply process, and the current is stored in the energy storage module after being subjected to direct current rectification and voltage reduction and stabilization; timing is started when the electric control valve is opened, and the electric control valve is automatically controlled to be cut off after one-time flushing is completed. Flushing kinetic energy is used for self-generating electricity, power is supplied to equipment, mains supply is not needed in the whole process, and automatic flushing of the closestool is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent toilet, in particular to a control method of a self-power generation intelligent toilet based on a gravity water tank. BACKGROUND

[0002] In areas with weak power infrastructure, such as the western mountainous areas, islands, and plateau pastoral areas of China, or rural areas in some countries in South Asia, Southeast Asia, and Africa, users may install intelligent toilets, but due to weak power infrastructure, they cannot use the intelligent toilets stably. The most basic function of an intelligent toilet is automatic flushing, so how to achieve automatic flushing without relying on city power and without frequently replacing chemical batteries has become a technical problem to be solved in the prior art. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the present application is to provide a control method of a self-power generation intelligent toilet based on a gravity water tank to solve the problems mentioned in the background section.

[0004] The present application is achieved by the following technical solutions: A control method of a self-power generation intelligent toilet based on a gravity water tank, the self-power generation intelligent toilet comprising a gravity water tank, a water supply waterway, a flushing waterway, and a toilet body, the gravity water tank being used to store water needed for flushing, the water supply waterway being used to supplement the gravity water tank with water needed for flushing, the flushing waterway being used to deliver water in the gravity water tank to the toilet body to achieve flushing, a self-power generation device being provided in the water supply waterway and / or the flushing waterway, and an energy storage module connected with the self-power generation device, the energy storage module being connected with a controller, the controller being connected with an electric control valve and a sensing assembly, the control method comprising: acquiring a control signal after the toilet is used by the sensing assembly; controlling the electric control valve to open to control the flushing waterway to flush and clean according to the control signal, and starting timing when the electric control valve is opened, and automatically controlling the electric control valve to stop after a flushing time is completed; generating power by the self-power generation device during flushing or water supply, and storing the current in the energy storage module after direct current rectification and voltage reduction and stabilization.

[0005] Further, the energy storage module further comprises a super capacitor and an energy storage battery, and the step of storing the current in the energy storage module after direct current rectification and voltage reduction and stabilization specifically comprises: After the current is rectified, the peak charge is first charged to the super capacitor, and then the super capacitor is slowly charged to the energy storage battery.

[0006] Further, the self-power generation intelligent closestool further comprises a display unit electrically connected with the control unit, and the control method further comprises: The control unit displays the power generation information on the display unit according to the power generation information.

[0007] Further, the step of acquiring the control signal after the closestool use is finished by the sensing assembly specifically comprises: The sensing assembly is judged to be a urination use state or a defecation use state, and then a first control signal or a second control signal after the closestool use is finished is acquired.

[0008] Further, the step of controlling the electric control valve to be opened to control the flushing waterway to flush and clean specifically comprises: The electric control valve is controlled to be opened for different lengths of time according to the first control signal or the second control signal to control the flushing waterway to flush and clean.

[0009] Further, if the super capacitor remaining power is greater than the energy required for one control of the electric control valve, the controller controls the super capacitor to supply power to the electric control valve, so that the electric control valve is turned on to guide the flushing waterway; If the super capacitor remaining power is less than the energy required for one control of the electric control valve, the controller controls the energy storage battery to supply power to the electric control valve, so that the electric control valve is turned on to guide the flushing waterway.

[0010] Further, the self-power generation device is arranged in the water supply waterway and the flushing waterway, and during flushing or water supply, power is generated by the self-power generation device, current is stored in the energy storage module after direct current rectification, parallel confluence and voltage reduction and stabilization. Power is generated by the self-power generation device, and current is stored in the energy storage module after direct current rectification, parallel confluence and voltage reduction and stabilization.

[0011] The application has the advantages that: the self-power generation device is arranged in the water supply waterway and / or the flushing waterway, water flow drives power generation, and the power is stored in the energy storage module after rectification and voltage stabilization, thereby supplying power to the controller, the electric control valve and the sensing assembly; the sensing assembly detects that the user leaves the seat and outputs a control signal, the controller immediately opens the electric control valve and counts time, the valve is automatically closed after one flushing, power is generated by the flushing kinetic energy, and the application is suitable for the power grid end or frequent power outage areas in western mountainous areas, islands, plateau pastoral areas, South Asia and Africa; automatic flushing without city power supply is realized in the whole process, the energy storage module maintains standby power consumption and control of the electric control valve, and the application has small size and long service life. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a flow chart of the control method of the self-power generation intelligent closestool based on the gravity water tank.

[0013] Figure 2 This is a schematic diagram showing the connection of various components of a self-generating smart toilet based on a gravity water tank according to the present invention.

[0014] Figure 3 This is a schematic diagram showing the positional relationship between the sensing component and the toilet body in the first embodiment of the present invention.

[0015] Figure 4 This is a schematic diagram showing the positional relationship between the sensing component and the toilet body according to the second embodiment of the present invention.

[0016] Figure 5 This is a schematic diagram showing the connection of the components of the self-generating device of the present invention using the second embodiment.

[0017] The above figures include the following reference numerals: 1. Gravity water tank; 2. Water supply circuit; 3. Flushing circuit; 4. Toilet body; 41. Toilet base; 42. Toilet seat; 43. Toilet lid; 5. Energy storage module; 51. Supercapacitor; 52. Energy storage battery; 6. Controller; 7. Self-generating device; 71. First impeller; 72. First generator; 73. Second impeller; 74. Second generator; 8. Electrically controlled valve; 9. Sensing components; 91. First transceiver signal group; 92. Second transceiver signal group; 93. Distance sensor; 94. Signal pairing component. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] Reference Figure 1 As shown, a control method for a self-generating smart toilet based on a gravity water tank is disclosed. The self-generating smart toilet includes a gravity water tank 1, a water supply path 2, a flushing path 3, and a toilet body 4. The gravity water tank 1 stores the water required for flushing. The water supply path 2 replenishes the gravity water tank 1 with the water required for flushing. The flushing path 3 transports the water from the gravity water tank 1 to the toilet body 4 to achieve flushing. A self-generating device 7 is provided in the water supply path 2 and / or the flushing path 3, and an energy storage module 5 is connected to the self-generating device 7. The energy storage module 5 is connected to a controller 6, and the controller 6 is connected to an electronically controlled valve 8 and a sensing component 9. The control method includes: The control signal after the toilet is used is obtained through the sensing component 9; The control signal controls the opening of the electronically controlled valve 8 to control the flushing water path 3 to flush and clean. During the flushing process, the self-generating device 7 generates electricity, and the current is stored in the energy storage module 5 after DC rectification and voltage reduction and stabilization. When the solenoid valve 8 is opened, the timer starts, and after one flushing time is completed, the solenoid valve 8 is automatically shut off.

[0020] This invention adds a self-generating device 7 to the water supply path 2 and / or flushing path 3. The water flow drives the generation of electricity, which is rectified and regulated before being stored in the energy storage module 5 to power the controller 6, the electric control valve 8, and the sensing component 9. When the sensing component 9 detects that the user has left the seat, it outputs a control signal. The controller 6 immediately opens the electric control valve 8 and starts timing. After one flush is completed, the valve automatically closes. The self-generating electricity is generated using the kinetic energy of the flushing water. This invention is suitable for western mountainous areas, islands, plateau pastoral areas, and areas at the end of the power grid or with frequent power outages, such as South Asia and Africa. It achieves automatic flushing without the need for mains power throughout the entire process. The energy storage module 5 only needs to maintain standby power consumption. It is small in size and has a long lifespan.

[0021] In a first embodiment of the self-generating device 7, a single impeller can be installed in either the water supply path 2 or the flushing path 3, and a single generator can be connected to the impeller. During flushing or water supply, the water flow drives the impeller to rotate, and the impeller then drives the generator to generate electricity.

[0022] As a second embodiment of the self-generating device 7, refer to Figure 5 As shown, the self-generating device 7 includes a first impeller 71, a second impeller 73, and a dual-head generator. The dual-head generator has two coaxial and oppositely arranged power input shafts. The first impeller 71 is fixedly connected to the front input shaft of the dual-head generator, and the second impeller 73 is fixedly connected to the rear input shaft of the dual-head generator. The first impeller 71 is installed in the pipe section of the water supply channel 2, and its blade orientation is adapted to the water flow direction of the water supply channel 2. The second impeller 73 is installed in the pipe section of the flushing water channel 3, and its blade orientation is adapted to the water flow direction of the flushing water channel 3. During operation, when the water supply channel 2 is in the water supply state, the water flow impacts the first impeller 71 along the water supply direction, causing it to rotate at high speed. The first impeller 71 drives the dual-head generator 72 to generate electricity through the front input shaft. When the flushing water channel 3 is in the flushing state, the water flow impacts the second impeller 73 along the flushing direction, causing it to rotate. The second impeller 73 drives the dual-head generator 72 to generate electricity through the rear input shaft.

[0023] As a second embodiment of the self-generating device 7, refer to Figure 2As shown, the self-generating device 7 includes a first impeller 71, a first generator 72, a second impeller 73, and a second generator 74. The first impeller 71 is fixed inside the pipe of the water supply channel 2, with its blades oriented in the same direction as the water flow in the water supply channel 2. The first impeller 71 is connected to the input shaft of the first generator 72 via a drive shaft. The second impeller 73 is coaxially fixed inside the pipe of the flushing water channel 3, with its blades oriented in the same direction as the water flow in the flushing water channel 3. The second impeller 73 is connected to the input shaft of the second generator 74 via a drive shaft.

[0024] The first generator 72 is fixed to the outer wall of the water supply pipe 2, and the second generator 74 is fixed to the outer wall of the flushing water pipe 3. The output terminals of the first generator 72 and the second generator 74 are connected by wires. Specifically, the circuit adopts a bridge rectifier circuit, and a Schottky diode is added to the output terminal to prevent current backflow. The DC outputs after rectification of the two circuits are connected in parallel through a common DC bus. The parallel power is connected to a DC-DC step-down voltage regulator module, and then input to the energy storage module 5. The energy storage module 5 is then connected to the controller 6, the electric control valve 8, the sensing component 9 and other load components.

[0025] The DC power after the current is combined is connected to the DC-DC step-down voltage regulator module, which stabilizes the fluctuating DC voltage (usually 5-20V after rectification) down to the rated voltage of the supercapacitor 51, preventing the supercapacitor 51 from being damaged by excessive voltage, while ensuring a stable charging current.

[0026] The current, after being stepped down and regulated, is input into the supercapacitor 51 to achieve energy storage. Because the supercapacitor 51 has the characteristic of instantaneous high current charging and discharging, it can quickly absorb the "peak charge" generated by the first generator 72 and the second generator 74 (such as the short-term high current caused by the instantaneous high flow velocity of water during flushing), which solves the problem of energy collection caused by intermittent power generation of water flow and ensures efficient energy storage.

[0027] Through the above structure and process, the self-generating device 7 can make full use of the kinetic energy of water flow during water supply and flushing, and can achieve self-sufficiency in electricity without external power supply. In particular, it is well-suited to the energy storage characteristics of the supercapacitor 51, which significantly improves the energy efficiency and endurance of the device.

[0028] Preferably, by setting the pipe diameter, the time for the water supply line 2 to add water to the gravity water tank 1 is set to 20 to 30 seconds. This ensures sufficient water addition time, guaranteeing the energy output of the first generator 72, and ensuring that the supercapacitor 51 has sufficient immediate energy and the energy storage battery 52 has stable and long-term replenishment.

[0029] In a preferred embodiment, the energy storage module 5 further includes a supercapacitor 51 and an energy storage battery 52, and the step of storing the current in the energy storage module 5 after DC rectification and voltage reduction and regulation specifically includes: After being rectified by DC, the current first charges the peak charge to the supercapacitor 51 in seconds, and then slowly charges the energy storage battery 52 through the supercapacitor 51.

[0030] The supercapacitor 51 features second-level fast charging. The self-generating device 7 experiences short-term current spikes due to the impact of water flow. However, the energy storage battery 52, limited by its chemical properties, cannot quickly absorb these peak energy spikes. This invention utilizes the supercapacitor 51 to capture and store these instantaneous energy spikes immediately, maximizing energy capture and reducing energy waste. For example, the supercapacitor 51 can completely absorb the 3mWh peak energy generated within the first 2 seconds of flushing the water channel 3. If the energy storage battery 52 were directly charged, only 1mWh would be absorbed, with the remaining 2mWh wasted. This step recovers twice the peak energy.

[0031] Among them, the energy storage battery 52 can be a lithium-ion battery in the existing technology. The energy storage battery 52 has the characteristics of long-term energy storage and stable energy output. The energy storage battery 52 provides stable power to load components such as the sensing component 9 in the standby state.

[0032] The toilet body 4 includes a toilet base 41, a toilet seat ring 42, and a toilet lid 43.

[0033] Preferably, the self-generating smart toilet further includes a display unit electrically connected to the control unit, and the control method further includes: The control unit displays the power generation information on the display unit based on the power generation information.

[0034] As a specific embodiment, an LCD display screen can be installed on the toilet seat 43. The LCD display screen serves as the aforementioned display unit. When the self-generating device 7 generates electricity, it obtains the wattage of the charge through the controller 6 and displays it on the LCD display screen to enhance the user's interactive experience. For example, the user can directly see "This toilet has generated a total of 0.8mWh of electricity". The LCD display screen has advantages such as extremely low power consumption, moisture resistance, and low cost.

[0035] As an extended embodiment, an LED light ring can be installed on the toilet seat 43. When the self-generating device 7 generates electricity, it obtains the wattage of the charge through the controller 6 and makes the LED light ring light up for different lengths, enhancing the user's interactive experience.

[0036] In a preferred embodiment, the step of acquiring the control signal after the toilet has been used via the sensing component 9 specifically includes: The sensor component 9 determines whether the toilet is in urination or defecation mode, and then acquires the first control signal or the second control signal after the toilet has finished using it.

[0037] The step of controlling the opening of the electronically controlled valve 8 according to the control signal to control the flushing water path 3 for rinsing specifically includes: The electric control valve 8 is opened for different durations according to the first control signal or the second control signal to control the flushing water path 3 for flushing and cleaning.

[0038] The controller uses sensor 9 to accurately distinguish between urination and defecation, and then outputs corresponding control signals based on the different states. This achieves intelligent control of the flushing volume to adjust as needed. Specifically, when a user urinates, the controller 6 determines that it is in urination mode through sensor 9 and generates a first control signal. Upon receiving the first control signal, the controller 6 controls the electrically controlled valve 8 on the flushing water path 3 to open for a short period of time (e.g., 3-4 seconds), so that the flushing water path 3 outputs a small amount of water (e.g., 3-4L), which is just enough to meet the flushing needs of urination. When a user defecates, the controller 6 determines that it is in defecation mode through sensor 9 and generates a second control signal. The controller 6 then controls the electrically controlled valve 8 to open for a longer period of time (e.g., 5-6 seconds), outputting a larger amount of water (e.g., 6-8L), ensuring that the feces are thoroughly flushed away.

[0039] The present invention provides two specific embodiments for distinguishing between a first control signal and a second control signal by means of a sensing component 9.

[0040] Reference Figure 3 As shown, when the sensing component 9 is the first embodiment, its specific solution is as follows: The sensing component 9 further includes a first transceiver signal group 91 respectively disposed on the toilet base 41 and the toilet seat 42, and a second transceiver signal group 92 respectively disposed on the toilet seat 42 and the toilet lid 43, and the control method further includes: If the controller 6 detects that the first transceiver signal group 91 is in a signal disconnected state, it determines that it is in a urination state and generates the first control signal; If the second transceiver signal group 92 is detected to be in a signal disconnection state, it is recorded as a pending use state and the disconnection duration of the second transceiver signal group 92 is started synchronously; if the disconnection duration is less than the preset duration, it is determined to be a urination use state and the first control signal is generated; if the disconnection duration is greater than the preset duration, it is determined to be a defecation use state and the second control signal is generated.

[0041] Specifically, during use, the user manually opens the toilet lid 43 or the toilet seat 42. When the user manually opens the toilet seat 42, the first transceiver signal group 91 is disconnected; when the user manually opens the toilet lid 43, the second transceiver signal group 92 is disconnected. The opening of the toilet lid 43 or the toilet seat 42 indicates that the user is using the toilet. When the user manually closes the toilet lid 43 and the toilet seat 42, both the first transceiver signal group 91 and the second transceiver signal group 92 resume mutual recognition, indicating that the user has finished using the toilet. Then, the electronically controlled valve 8 automatically opens to complete the flushing and then shuts off.

[0042] Preferably, both the first transceiver signal group 91 and the second transceiver signal group 92 are Hall effect sensor modules, each comprising a permanent magnet and a Hall sensor. In the first transceiver signal group 91, the permanent magnet is disposed on the toilet seat 42, and the Hall sensor is disposed on the top surface of the toilet base 41; in the second transceiver signal group 92, the permanent magnet is disposed on the toilet seat 42, and the Hall sensor is disposed on the bottom surface of the toilet lid 43. The first transceiver signal group 91 and the second transceiver signal group 92 can share the same permanent magnet. Compared to using infrared emitters and receivers as transceiver signal groups, the permanent magnet and Hall sensor in the first transceiver signal group 91 and the second transceiver signal group 92 have the advantage of low power consumption, significantly reducing the energy consumption burden of the energy storage module 5 and adapting to the limited energy output of the self-generating device 7.

[0043] As a specific embodiment, if the total disconnection time of the second transceiver signal group 92 exceeds 2 minutes, it is determined that the user is in a defecation state; if the total disconnection time of the second transceiver signal group 92 is less than 2 minutes, it is determined that the user is in a urination state.

[0044] Reference Figure 4 As shown, when the sensing component 9 is the second embodiment, its specific solution is as follows: The sensing component 9 further includes a distance sensor 93 disposed on the toilet seat 43, and the control method further includes: If the current distance value falls within a preset first distance range, the duration for which the user remains within that range is accumulated; when the duration reaches or exceeds the first duration, it is determined that the user is in a urination state, and the first control signal is generated. If the current distance value falls within a preset second distance range, the duration for which the user remains within that range is accumulated; when the duration reaches or exceeds the second duration but does not reach the third duration, it is determined that the user is in a urination state, and the first control signal is generated; when the duration reaches or exceeds the third duration, it is determined that the user is in a defecation state, and the second control signal is generated.

[0045] Specifically, during use, the user manually opens the toilet lid 43 or toilet seat 42. When the user stands up to urinate, they fall into a first distance interval. If the duration of the user's actions in the first distance interval reaches or exceeds the first duration, the user is determined to be in a urination state. When the user manually opens the toilet lid 43 and sits down, they fall into a second distance interval. If the duration of the user's actions in the second distance interval reaches or exceeds the second or third duration, the user is determined to be in a urination state. If the duration of the user's actions reaches or exceeds the third duration, the user is determined to be in a defecation state.

[0046] Preferably, the first distance interval satisfies: 50cm ≤ first distance interval < 120cm; the second distance interval satisfies: second distance interval < 50cm; the first duration satisfies: first duration ≥ 10 seconds; the second duration satisfies: 10 seconds ≤ second duration ≤ 2 minutes; and the third duration satisfies: third duration ≥ 2 minutes.

[0047] The threshold settings for the first distance interval, the second distance interval, the first duration, the second duration, and the third duration are all based on a large amount of experience data summarizing daily usage behavior of household users, ergonomic dimensions, and the installation scenarios of the toilet seat 43 sensor. The beneficial effects are: ensuring the accuracy of scenario determination, adapting to diverse usage needs, and ensuring the achievement of water-saving goals.

[0048] As an extended embodiment, users may temporarily leave during use. This invention avoids invalid flushing and energy waste by adding a departure recognition function and then delaying the flushing judgment logic. Specifically: when the user leaves from the first distance interval and the second distance interval, the controller 6 starts timing. If the user does not return to the original distance interval within a fourth time period, the controller 6 controls the electronic control valve 8 to open the flushing water path 3. The fourth time period satisfies: 10 seconds ≤ fourth time period ≤ 20 seconds.

[0049] In the above text, the distance sensor 93 belongs to existing technology, such as infrared ranging sensors, ultrasonic ranging sensors, etc.

[0050] Since the distance sensor 93 requires relatively high power during long-term detection, it is prone to causing the energy storage module 5 to run out of power. By triggering wake-up through the signal pairing component 94, the ineffective working time of the distance sensor 93 can be minimized. Therefore, the present invention provides the following control scheme: Reference Figure 4 As shown, the sensing component 9 further includes signal pairing components 94 respectively disposed on the toilet seat 43 and the toilet base 41, and the control method further includes: When the signal pairing component 94 disconnects, the controller 6 wakes up the distance sensor 93.

[0051] If a user enters or exits the bathroom, or passes by the toilet, and the distance sensor 93 continuously detects, it may accidentally trigger a false wake-up due to the distance falling into the detection range. By setting the signal pairing component 94 on the toilet seat 43 and the toilet base 41 respectively, the distance sensor 93 will be automatically woken up when the user manually opens the toilet seat 43 to use the toilet.

[0052] Preferably, the signal pairing component 94 includes a permanent magnet and a Hall sensor. The permanent magnet is disposed on the toilet base 41, and the Hall sensor is disposed on the toilet seat 43. Compared with infrared emitters and receivers, the permanent magnet and Hall sensor as the signal pairing component 94 have the advantage of low power consumption, which significantly reduces the energy consumption burden of the energy storage module 5 and is suitable for the limited energy output of the self-generating device 7.

[0053] In a preferred embodiment, when the controller 6 determines that it is in a urination or defecation state, the controller 6 detects the remaining power of the supercapacitor 51 in real time. If the remaining charge of the supercapacitor 51 is greater than the energy required to control the operation of the solenoid valve 8 once, the controller 6 controls the supercapacitor 51 to supply power to the solenoid valve 8, so that the solenoid valve 8 can open the flushing water path 3. If the remaining charge of the supercapacitor 51 is less than the energy required to control the operation of the electronically controlled valve 8, the controller 6 controls the energy storage battery 52 to supply power to the electronically controlled valve 8, so that the electronically controlled valve 8 can open the flushing water path 3.

[0054] When the electronically controlled valve 8 is opened, the timing starts. After one flushing time is completed, a stop flushing signal is automatically generated. The controller 6 controls the supercapacitor 51 to supply power to the electronically controlled valve 8, so that the electronically controlled valve 8 cuts off the flushing water path 3. After the gravity water tank 1 is flushed, the controller 6 controls the supercapacitor 51 to transfer a portion of its power exceeding the energy required to control the electric valve 8 at least three times to the energy storage battery 52, thereby charging the energy storage battery 52.

[0055] The core drawback of the supercapacitor 51 is its rapid self-discharge. If its stored energy is not utilized first, the peak energy recovered by the self-generating device 7 will naturally dissipate over time. This invention addresses this by prioritizing the use of the supercapacitor 51 for power supply through the above steps, preventing energy waste due to self-discharge. This is especially important considering the short-term operation of the electronically controlled valve 8 after self-generation; if flushed immediately after use, the energy utilization rate of the supercapacitor 51 is further improved. Furthermore, each energy conversion results in a 5%-10% loss; therefore, prioritizing the use of the supercapacitor 51 for power supply avoids these losses.

[0056] By ensuring that the supercapacitor 51 retains energy for at least three operation cycles of the electronically controlled valve 8, the user can ensure that the supercapacitor 51 can supply power to the electronically controlled valve 8 the next time they use it, thus preventing the supercapacitor 51 from losing power naturally over time.

[0057] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A control method for a self-generating smart toilet based on a gravity water tank, characterized in that: The self-generating smart toilet includes a gravity water tank, a water supply path, a flushing path, and a toilet body. The gravity water tank stores the water needed for flushing. The water supply path replenishes the gravity water tank with the water needed for flushing. The flushing path delivers the water from the gravity water tank to the toilet body for flushing. A self-generating device is installed in the water supply path and / or the flushing path, along with an energy storage module connected to the self-generating device. The energy storage module is connected to a controller, which is connected to an electronically controlled valve and a sensing component. The control method includes: The control signal after the toilet is used is obtained through the sensor component; The control signal controls the opening of the electric control valve to control the flushing water path for cleaning. When the electric control valve opens, the timer starts and the electric control valve is automatically turned off after one flushing time is completed. During flushing or water supply, the self-generating device generates electricity, and the current is stored in the energy storage module after DC rectification and voltage reduction and stabilization.

2. The control method for a self-generating smart toilet based on a gravity water tank according to claim 1, characterized in that, The energy storage module further includes a supercapacitor and an energy storage battery, and the steps of storing the current in the energy storage module after DC rectification and voltage reduction and regulation specifically include: After being rectified by DC, the current first charges the peak charge into the supercapacitor in seconds, and then slowly charges the energy storage battery through the supercapacitor.

3. The control method for a self-generating smart toilet based on a gravity water tank according to claim 1, characterized in that, The self-generating smart toilet further includes: a display unit electrically connected to the control unit, and the control method further includes: The control unit displays the power generation information on the display unit based on the power generation information.

4. The control method for a self-generating smart toilet based on a gravity water tank according to claim 1, characterized in that, The step of acquiring the control signal after the toilet has been used via the sensing component specifically includes: The sensor component determines whether the toilet is in urination or defecation mode, and then acquires the first control signal or the second control signal after the toilet has finished using it.

5. The control method for a self-generating smart toilet based on a gravity water tank according to claim 4, characterized in that, The step of controlling the opening of the electronically controlled valve according to the control signal to control the flushing water path for cleaning specifically includes: The electric control valve is opened for different durations according to the first control signal or the second control signal to control the flushing water path for cleaning.

6. The control method for a self-generating smart toilet based on a gravity water tank according to claim 2, characterized in that: If the remaining charge of the supercapacitor is greater than the energy required to control the operation of the solenoid valve once, the controller controls the supercapacitor to supply power to the solenoid valve, so that the solenoid valve opens the flushing water path. If the remaining charge of the supercapacitor is less than the energy required to control the operation of the electronically controlled valve, the controller controls the energy storage battery to supply power to the electronically controlled valve, thereby enabling the electronically controlled valve to open the flushing water path.

7. The control method for a self-generating smart toilet based on a gravity water tank according to claim 1, characterized in that: The water supply and flushing water circuits are equipped with self-generating devices, and during flushing or water supply, the self-generating devices generate electricity, which is then rectified by DC and stabilized before being stored in the energy storage module. Specifically, this includes: The self-generating device generates electricity, and the current is stored in the energy storage module after being rectified by DC, connected in parallel, and stepped down and stabilized.

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