Intelligent control system for foot bath barrel
By combining multi-dimensional sensing modules and core control modules, the problems of insufficient temperature control, personalized adaptation and safety protection in foot bath tubs have been solved. High-precision water temperature control, personalized parameter adaptation and all-round safety protection have been achieved, improving the intelligence and safety of foot bath tubs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-24
- Publication Date
- 2026-03-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing foot bath tubs suffer from low temperature control precision, lack of personalized customization, insufficient safety protection, and weak data interaction capabilities, which negatively impact user experience and safety.
It employs a multi-dimensional sensing module, a core control module, an execution module, a safety protection module, a wireless communication module, and a user interaction module. Combined with multi-point water temperature sensors, PID adjustment algorithms, voice recognition algorithms, and cloud data analysis, it achieves high-precision temperature control, personalized parameter adaptation, all-round safety protection, and in-depth data interaction.
It achieves precise and stable water temperature control, personalized health and wellness adaptation, comprehensive safety protection, and intelligent data interaction, thus improving the user's foot bath experience and safety.
Smart Images

Figure CN121763875A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of foot bath tub technology, specifically to an intelligent control system for foot bath tubs. Background Technology
[0002] With the improvement of living standards, foot bathing has become an increasingly popular and convenient health practice, and foot bath tubs have gradually become a common household appliance. While existing foot bath tubs possess basic heating and heat preservation functions, they suffer from several shortcomings in intelligent control: First, temperature control accuracy is low, often relying on a single temperature sensor, which is easily affected by water flow fluctuations and changes in water level, leading to significant discrepancies between the actual and set temperatures and impacting the foot bath experience. Second, they lack personalized adaptation capabilities, failing to automatically adjust foot bath parameters based on different users' constitutions and foot conditions, requiring manual adjustments by the user. Third, safety protection mechanisms are inadequate, with delayed responses to abnormal situations such as dry burning, electrical leakage, and sudden temperature increases, posing certain safety hazards. Fourth, data interaction capabilities are weak, making deep integration with mobile terminals difficult, unable to record user foot bath data, generate personalized health suggestions, or support remote control functions.
[0003] To address the aforementioned issues, existing technologies mostly employ simple circuit control or single sensor monitoring solutions, failing to achieve coordinated optimization of precise temperature control, personalized adaptation, safety protection, and data interaction at the system architecture level. Therefore, designing an intelligent control system for foot bath tubs with high-precision temperature control, personalized health-enhancing adaptation, comprehensive safety protection, and intelligent data interaction has become an urgent technical requirement. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of existing foot bath tub control systems, such as low temperature control accuracy, lack of personalized adaptation, insufficient safety protection, and weak data interaction capabilities. This invention provides an intelligent control system for foot bath tubs that achieves high-precision and stable water temperature control, personalized parameter adaptation based on user characteristics, comprehensive early warning and handling of safety hazards, and deep data interaction with mobile terminals, thereby improving the user's foot bath experience and safety.
[0005] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: an intelligent control system for a foot bath tub, comprising a core control module that realizes data interaction through a bus or wireless communication protocol, a multi-dimensional sensing module, an execution module, a security protection module, a wireless communication module, and a user interaction module;
[0006] The core control module processes the transmitted data and outputs control commands; the core control module is equipped with an ADC module, a PWM module and an audio decoding module, and has built-in personalized parameter matching algorithm, water temperature PID adjustment algorithm, safety anomaly detection algorithm, voice recognition algorithm and health knowledge push algorithm.
[0007] The multi-dimensional perception module is used to collect key data and user voice commands during the foot soaking process; the execution module is used to receive control commands from the core control module and execute corresponding actions; the safety protection module is used to realize real-time protection against various safety hazards during the foot soaking process.
[0008] The wireless communication module uses a dual-mode WiFi and Bluetooth communication chip to enable data interaction between the core control module and the mobile terminal, cloud server, and music platform.
[0009] The user interaction module is used to provide users with operation methods, information viewing channels, and voice interaction functions.
[0010] Furthermore, the multi-dimensional sensing module includes a water temperature sensing unit, a water level sensing unit, a foot status sensing unit, an environmental sensing unit, and a voice acquisition unit;
[0011] The water temperature sensing unit uses three NTC thermistor sensors, which are respectively installed at the center of the bottom of the foot bath tub, the bottom edge, and the middle of the tub wall; the three NTC thermistor sensors simultaneously collect water temperature data, and the core control module performs weighted average processing on the three sets of data collected.
[0012] The foot status sensing unit includes a pressure sensor array and an infrared sensor unit. The pressure sensor array is laid at the bottom of the foot bath tub and consists of multiple distributed pressure sensors, used to detect the placement of the user's feet and whether there is any abnormality. The infrared sensor unit is set on the upper part of the tub wall and uses infrared thermal imaging technology to detect the temperature distribution of the foot skin, helping to determine whether there are sensitive areas or minor wounds on the feet.
[0013] The voice acquisition unit uses a microphone array, which is located on one side of the control panel on the top of the foot bath tub, to collect user voice commands. The collected voice signals are analyzed by the voice recognition algorithm built into the core control module and converted into corresponding control commands to trigger music access or health knowledge explanation functions.
[0014] Furthermore, the execution module includes a heating unit, a water flow adjustment unit, a massage unit, a drainage unit, an audio playback unit, and a timing display unit;
[0015] The heating unit uses a PTC ceramic heating element, and the core control module adjusts the working power of the heating element through a PWM signal. The water flow adjustment unit includes a miniature silent water pump and an adjustable water outlet. The speed of the miniature water pump is controlled by the pulse signal output by the core control module to adjust the water flow intensity in multiple levels. The adjustable water outlet is used for water output and switching of water flow direction.
[0016] The audio playback unit includes a speaker and an audio driver circuit; the core control module connects to a designated music platform via a wireless communication module according to user voice commands or APP settings, and the audio signal is played by the speaker after being processed by the audio driver circuit; the speaker can play health and wellness knowledge audio pushed by the core control module.
[0017] The timing display unit uses an LED digital tube. The core control module starts the timing according to the foot bath time set by the user, and the timing data is transmitted to the digital display component of the user interaction module in real time. When the time reaches the set time, an end prompt sound is triggered, and the timing end prompt is displayed on the digital display component.
[0018] Furthermore, the safety protection module includes an electrical protection unit, a temperature protection unit, a water level protection unit, and an emergency response unit;
[0019] The electrical protection unit of the safety protection module adopts a leakage current protection chip and an overvoltage and overcurrent protection circuit. The leakage current protection chip detects the leakage current in the circuit in real time. When the leakage current exceeds the set threshold of 30mA, it immediately triggers the power-off protection. The overvoltage and overcurrent protection circuit monitors the input voltage and operating current in real time. When the voltage exceeds 250V or the current exceeds 5A, it automatically cuts off the power supply.
[0020] The emergency response unit includes an emergency stop button and an audible and visual alarm module. The emergency stop button is located on the side of the foot bath tub. In an emergency, the user can manually press it to immediately cut off the power to all execution modules. The audible and visual alarm module consists of a buzzer and an LED warning light. When a safety abnormality is detected, the buzzer emits a continuous alarm sound, the LED warning light flashes, and the core control module sends alarm information to the mobile terminal via the wireless communication module.
[0021] Furthermore, the wireless communication module establishes a connection with the cloud server via the WiFi module to upload user foot bath data to the cloud server for storage. The cloud server has a built-in health and wellness knowledge database, and based on the user's historical foot bath data and physical condition information, it pushes suitable health and wellness knowledge to the core control module. The WiFi module supports access to online music libraries. The core control module communicates with mobile terminals via Bluetooth, enabling direct pairing with the user's mobile phone for wireless music playback. The wireless communication module can perform firmware upgrades, allowing users to upgrade the control system firmware via a mobile terminal APP to optimize system performance and update the health and wellness knowledge database.
[0022] Furthermore, the user interaction module includes a local interaction unit and a remote interaction unit;
[0023] The local interaction unit includes a touch screen, a digital display component, physical buttons, status indicator lights, and a voice interaction unit. The touch screen displays the user's physical parameters input interface, foot bath parameter setting interface, real-time foot bath data, safety warning information, music playlist, and health knowledge text content. The digital display component uses a high-brightness LED digital tube to independently display the real-time water temperature and remaining foot bath time. The physical buttons include a power button, an emergency stop button, a mode switch button, a volume control button, a music switch button, and a health knowledge playback button. The status indicator lights include a power indicator light, a heating indicator light, a massage indicator light, a safety warning indicator light, and a music playback indicator light. The voice interaction unit is connected to the voice acquisition unit for user voice command input.
[0024] Furthermore, the personalized parameter matching algorithm generates corresponding target water temperature range, foot soaking time, and water flow intensity level based on the user's input physical condition information, foot condition, and age information; the health knowledge push algorithm pushes suitable health care knowledge according to preset time nodes based on the user's physical condition information and foot soaking time.
[0025] The advantages of this invention compared to the prior art are:
[0026] This invention uses multi-point water temperature sensors to collect data and performs weighted average processing. Combined with a PID control algorithm, it dynamically adjusts the heating power, effectively eliminating the influence of water flow and water level on water temperature detection. With an independent LED digital display component, it clearly displays the water temperature in real time, ensuring stable foot bath water temperature and improving user experience.
[0027] Based on user's physical condition, foot condition and age information, this invention generates personalized foot bath parameters through a dedicated algorithm, supports manual fine-tuning and voice interaction, and at the same time, the cloud server pushes appropriate health care knowledge according to user characteristics to meet the health care needs of different users, especially suitable for users with sensitive skin, special physical conditions and elderly users;
[0028] This invention integrates multiple protection mechanisms, including electrical protection, temperature protection, water level protection, and emergency response, to monitor and respond quickly to various safety hazards in real time, effectively preventing safety accidents such as leakage, dry burning, and overheating, and improving safety in use.
[0029] This invention supports dual-mode communication via WiFi and Bluetooth, enabling both local and remote operation. Users can view foot bath data in real time and adjust parameters remotely. It integrates voice recognition and audio playback functions, supporting voice input for music and switching playback content. Combined with a digital display timer, it offers convenient operation. Furthermore, it integrates with a cloud server to achieve data storage, big data analysis, and health knowledge dissemination, enriching the intelligent health experience. Attached Figure Description
[0030] Figure 1 This is a system block diagram of an intelligent control system for a foot bath tub according to the present invention. Detailed Implementation
[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
[0032] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.
[0033] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.
[0034] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0035] The following is a detailed description of an intelligent control system for a foot bath tub according to the present invention, with reference to the accompanying drawings.
[0036] Combined with appendix Figure 1 This invention will be described in detail below.
[0037] An intelligent control system for foot bath tubs includes a core control module, a multi-dimensional sensing module, an execution module, a safety protection module, a wireless communication module, and a user interaction module. The modules interact with each other via a bus or wireless communication protocol. The core control module acts as the system hub, processing the data transmitted by each module and outputting control commands.
[0038] The core control module uses an ARM Cortex-M4 processor as the main control chip, integrating a high-precision ADC module, a PWM module, and an audio decoding module. The main control chip incorporates personalized parameter matching algorithms, water temperature PID adjustment algorithms, safety anomaly detection algorithms, voice recognition algorithms, and health knowledge push algorithms. Specifically, the personalized parameter matching algorithm automatically generates the corresponding target water temperature range, foot soaking time, and water flow intensity level based on user-inputted physical condition, foot condition, and age information. The water temperature PID adjustment algorithm dynamically adjusts the power of the heating element in the execution module based on water temperature data collected by multi-dimensional sensing modules, achieving precise and stable water temperature control. The safety anomaly detection algorithm performs threshold judgment on abnormal data transmitted from each sensing module, triggering corresponding safety handling commands. The voice recognition algorithm supports user voice command parsing, enabling voice control of music access, play / pause / switch, and health knowledge playback. The health knowledge push algorithm pushes appropriate health and wellness knowledge based on user physical condition information and foot soaking time at preset time points.
[0039] The multi-dimensional sensing module includes a water temperature sensing unit, a water level sensing unit, a foot status sensing unit, an environmental sensing unit, and a voice acquisition unit, which are used to collect various key data and user voice commands during the foot soaking process and transmit them to the core control module.
[0040] The water temperature sensing unit employs three high-precision NTC thermistor sensors, installed at the center of the bottom, the bottom edge, and the middle of the tub wall, respectively. The three sensors simultaneously collect water temperature data, and the core control module performs a weighted average of the three sets of data to eliminate the influence of water flow fluctuations and water level changes on water temperature detection, thereby improving the accuracy of water temperature detection. The NTC thermistor sensors have a measurement range of 0℃-100℃, and the collected data is transmitted to the core control module in real time, providing data support for the digital temperature display function.
[0041] The water level sensing unit uses a capacitive water level sensor, which is installed on the inner wall of the foot bath tub. It determines the water level by detecting changes in capacitance. Three water level thresholds are set: the minimum safe water level, the standard water level, and the maximum safe water level. When the water level is lower than the minimum safe water level or higher than the maximum safe water level, an abnormal signal is immediately transmitted to the core control module.
[0042] The foot status sensing unit includes a pressure sensor array and an infrared sensor unit. The pressure sensor array is laid at the bottom of the foot bath tub and consists of multiple distributed pressure sensors to detect the placement of the user's feet and whether there is any abnormality. The infrared sensor unit is installed on the upper part of the tub wall and uses infrared thermal imaging technology to detect the temperature distribution of the foot skin to help determine whether there are sensitive areas or minor wounds on the feet.
[0043] The environmental sensing unit uses a temperature and humidity sensor, which is installed on the surface of the foot bath tub to collect ambient temperature and humidity data. The core control module dynamically corrects the target water temperature based on the ambient temperature and humidity data.
[0044] The voice acquisition unit uses a high-sensitivity microphone array, which is installed on one side of the control panel on the top of the foot bath tub. It has a noise reduction function and can accurately acquire user voice commands. The acquired voice signals are analyzed by the voice recognition algorithm built into the core control module and converted into corresponding control commands to trigger music playback or health knowledge explanation functions.
[0045] The execution module includes a heating unit, a water flow adjustment unit, a massage unit, a drainage unit, an audio playback unit, and a timing display unit. It receives control commands from the core control module and executes the corresponding actions.
[0046] The heating unit uses PTC ceramic heating elements, which have the characteristics of rapid heating, high thermal efficiency and good temperature stability. The core control module adjusts the working power of the heating element through PWM signal, with a power adjustment range of 50W-500W, so as to achieve stable rise and fall of water temperature and avoid sudden rise and fall of water temperature.
[0047] The water flow adjustment unit includes a miniature silent water pump and an adjustable water outlet. The speed of the miniature water pump is controlled by the pulse signal output by the core control module to achieve multi-level adjustment of the water flow intensity. The adjustable water outlet can switch the water flow direction to meet the foot bath needs of different users.
[0048] The massage unit includes multiple distributed vibration motors and height-adjustable massage rollers. The vibration frequency of the vibration motors and the height of the massage rollers are both controlled by the core control module. Based on parameters generated by a personalized parameter matching algorithm, the vibration frequency and the height of the massage rollers are automatically adjusted to provide a suitable massage intensity for users with different physical conditions.
[0049] The drainage unit includes an electromagnetic drain valve. The core control module controls the opening and closing of the electromagnetic drain valve to achieve automatic drainage. After soaking the feet, the user can trigger a drainage command through the user interaction module or set an automatic drainage time. The core control module controls the electromagnetic drain valve to open and automatically closes after drainage is completed.
[0050] The audio playback unit includes a high-fidelity speaker and an audio driver circuit, which are linked with the wireless communication module and the core control module. The core control module connects to the designated music platform through the wireless communication module according to the user's voice commands or APP settings. The audio signal is processed by the audio driver circuit and then played by the speaker, supporting functions such as volume adjustment, song switching, pause / resume, etc. At the same time, the speaker can play health and wellness knowledge audio pushed by the core control module.
[0051] The timing display unit is linked with the built-in timing module of the core control module. The core control module starts the timing according to the foot bath duration set by the user, and the timing data is transmitted to the digital display component of the user interaction module in real time. It supports the timing start, pause and reset functions. When the timing reaches the set duration, it triggers an end prompt sound and displays a "Timing End" prompt on the digital display component.
[0052] The safety protection module includes an electrical protection unit, a temperature protection unit, a water level protection unit, and an emergency response unit, enabling real-time protection against various safety hazards during foot soaking.
[0053] The electrical protection unit uses a leakage current protection chip and an overvoltage and overcurrent protection circuit. The leakage current protection chip detects the leakage current in the circuit in real time. When the leakage current exceeds the set threshold, it immediately triggers the power-off protection. The overvoltage and overcurrent protection circuit monitors the input voltage and operating current in real time. When the voltage exceeds 250V or the current exceeds 5A, it automatically cuts off the power supply to avoid circuit damage or safety accidents.
[0054] The temperature protection unit includes an over-temperature protection switch and an overheat warning circuit. The over-temperature protection switch is connected in series with the PTC heating element. When the temperature of the heating element exceeds 120°C, the over-temperature protection switch automatically disconnects and stops heating. The overheat warning circuit monitors the outer shell temperature of the foot bath tub in real time. When the outer shell temperature exceeds 60°C, it transmits a warning signal to the core control module. The core control module then reduces the heating power and triggers an audible and visual warning.
[0055] The water level protection unit is linked with the water level sensing unit in the multi-dimensional sensing module. When the water level is detected to be lower than the minimum safe water level, the core control module immediately controls the heating unit to stop working to avoid dry burning. When the water level is higher than the maximum safe water level, the drainage unit is controlled to open to discharge excess water until the water level drops to the standard water level range.
[0056] The emergency response unit includes an emergency stop button and an audible and visual alarm module. The emergency stop button is installed on the side of the foot bath tub, which the user can press manually in an emergency to immediately cut off the power to all execution modules. The audible and visual alarm module consists of a buzzer and an LED warning light. When a safety abnormality is detected, the buzzer emits a continuous alarm sound, the LED warning light flashes, and the core control module sends alarm information to the mobile terminal via the wireless communication module.
[0057] The wireless communication module employs a dual-mode WiFi and Bluetooth chip to enable data interaction between the core control module, mobile terminal, cloud server, and music platform. The WiFi module establishes a connection with the cloud server, uploading user foot bath data for storage. The cloud server has a built-in health and wellness knowledge database, pushing relevant health and wellness information to the core control module based on the user's historical foot bath data and physical condition information. Simultaneously, the WiFi module supports access to online music libraries, meeting users' voice-activated song selection needs. The Bluetooth module enables short-range communication between the core control module and the mobile terminal. Users can view foot bath parameters in real-time, remotely adjust foot bath settings, select music playlists, set the frequency of health and wellness knowledge pushes, or trigger commands such as draining water or stopping via the mobile terminal app. Furthermore, the Bluetooth module supports direct pairing with the user's mobile phone for wireless music playback. The wireless communication module supports firmware upgrades, allowing users to upgrade the control system firmware via the mobile terminal app, optimizing system performance and updating the health and wellness knowledge database.
[0058] The user interaction module includes a local interaction unit and a remote interaction unit, providing users with convenient operation methods, information viewing channels, and voice interaction functions.
[0059] The local interaction unit is installed on the top control panel of the foot bath tub, including a touch screen, a digital display component, physical buttons, status indicator lights, and a voice interaction unit. The touch screen displays the user's physical parameters input interface, foot bath parameter settings interface, real-time foot bath data, safety warning information, music playlist, and health knowledge text content. The digital display component uses high-brightness LED digital tubes to independently display the real-time water temperature and remaining foot bath time, with clear and easy-to-read numbers suitable for elderly users. The physical buttons include a power button, an emergency stop button, a mode switch button, a volume control button, a music switch button, and a health knowledge playback button, facilitating basic operations when users do not have a mobile device or cannot easily use voice control. The status indicator lights include a power indicator light, a heating indicator light, a massage indicator light, a safety warning indicator light, and a music playback indicator light, using different colored lights to indicate the working status of the corresponding functions. The voice interaction unit is linked with the voice acquisition unit in the multi-dimensional perception module, supporting user voice command input.
[0060] The remote interaction unit is a mobile terminal APP, supporting iOS and Android systems. Users can input their personal physical condition information, foot condition information, and age information through the APP to generate personalized foot bath plans; view the working status and real-time parameters of the foot bath tub in real time, and remotely adjust the water temperature, foot bath duration, water flow intensity, and massage mode; view historical foot bath data and health advice pushed from the cloud, and customize the timing and content type of health knowledge push; manage music playlists, and select online music or local music playback; receive safety anomaly alarm information, and promptly handle various safety hazards.
[0061] The specific implementation process of the intelligent control system for foot bath tub of the present invention is as follows:
[0062] System startup: The user starts the system via the power button on the local interactive unit or the mobile terminal APP. The core control module performs an initial self-test to check whether each module is working properly. At the same time, the digital display component lights up and displays the current ambient temperature. If a module malfunctions, an audible and visual alarm is immediately triggered and a fault information is sent to the mobile terminal.
[0063] Parameter Input and Matching: Users can input their personal physical condition, foot condition, and age information through the local touch screen, mobile terminal APP, or by giving voice commands to the system. The core control module generates corresponding target water temperature range, foot soaking time, water flow intensity, and massage mode parameters through a personalized parameter matching algorithm, and displays them on the touch screen and digital display components. Users can manually fine-tune them as needed. At the same time, users can select music playback mode and health knowledge push mode through voice commands or APP settings.
[0064] Water addition detection: When the user adds water to the foot bath tub, the water level sensing unit detects the water level in real time. When the water level reaches the standard level, a signal is transmitted to the core control module. The core control module then activates the heating unit, water flow regulation unit, and timing module. The digital display component starts to show the real-time water temperature and the set foot bath duration. If the water level is lower than the minimum safe level, an audible and visual alarm is triggered to prompt the user to add water. If the water level is higher than the maximum safe level, the drainage unit is activated to drain excess water.
[0065] Foot soaking process control: The heating unit operates according to the PID adjustment instructions of the core control module. The water temperature sensing unit collects water temperature data in real time and transmits it to the core control module. The core control module dynamically adjusts the heating power, and the digital display component updates the real-time water temperature synchronously. The water flow adjustment unit operates according to the set water flow intensity, and the water flow direction can be switched via a mobile terminal APP, local buttons, or voice commands. The massage unit operates according to the set mode, and the vibration frequency and the height of the massage rollers are adapted in real time. The timer module continuously counts down, and the digital display component displays the remaining foot soaking time. Users can control music playback and health knowledge push via voice commands. The core control module obtains the corresponding music or health knowledge content through the wireless communication module, plays it through the speaker, and displays the text information synchronously on the touch screen. The foot status sensing unit detects the foot status in real time. If it detects sudden foot movement or abnormal skin temperature, the core control module appropriately reduces the heating power and massage intensity, and triggers an alarm if necessary.
[0066] Safety Protection: The safety protection module monitors the circuit status, water temperature, water level, and casing temperature in real time. If any safety abnormalities such as leakage, overvoltage, overcurrent, overheating, or dry burning are detected, the corresponding safety measures will be triggered immediately. At the same time, an audible and visual alarm will be activated and an alarm message will be sent to the mobile terminal. The digital display component will flash to indicate the abnormality.
[0067] Foot soaking ends: When the timer reaches the set value, the core control module controls the heating unit, water flow adjustment unit, massage unit, and music playback unit to stop working, emits an end prompt tone, and the digital display component displays "Timer ended"; the user can trigger the drainage command through local buttons, voice commands, or mobile terminal APP, the core control module controls the drainage unit to start, and automatically shuts off after drainage is completed.
[0068] Data storage and analysis: The core control module uploads the foot bath data to the cloud server via the wireless communication module. The cloud server analyzes the historical data, updates personalized health advice and pushes it to the mobile terminal, and updates the health knowledge database at the same time.
[0069] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.
Claims
1. A smart control system for a footbath, characterized in that: The core control module, the multi-dimensional perception module, the execution module, the safety protection module, the wireless communication module and the user interaction module realize data interaction through a bus or a wireless communication protocol; The core control module processes the transmitted data and outputs control instructions; the core control module is internally provided with an ADC module, a PWM module and an audio decoding module, and internally built with a personalized parameter matching algorithm, a water temperature PID adjustment algorithm, a safety anomaly determination algorithm, a voice recognition algorithm and a health knowledge pushing algorithm; The multi-dimensional perception module is used for collecting key data and user voice instructions in the foot soaking process; the execution module is used for receiving the control instructions of the core control module and executing corresponding actions; the safety protection module is used for realizing real-time protection of various safety hazards in the foot soaking process; The wireless communication module adopts a WiFi and Bluetooth dual-mode communication chip, and is used for realizing data interaction of the core control module with a mobile terminal, a cloud server and a music platform; The user interaction module is used for providing the user with an operation mode, an information viewing channel and a voice interaction function.
2. The intelligent control system for the foot soaking bucket according to claim 1, wherein: The multi-dimensional perception module includes a water temperature perception unit, a water level perception unit, a foot state perception unit, an environment perception unit and a voice collection unit; The water temperature perception unit adopts three NTC thermistor sensors, which are respectively installed at the bottom center, the bottom edge and the middle position of the bucket wall of the foot soaking bucket; the three NTC thermistor sensors simultaneously collect water temperature data, and the core control module performs weighted average processing on the three groups of collected data; The foot state perception unit includes a pressure sensor array and an infrared sensing unit; the pressure sensor array is laid on the bottom of the foot soaking bucket and is composed of a plurality of distributed pressure sensors, and is used for detecting the placement state of the user's feet and whether there is abnormal movement; The infrared sensing unit is arranged above the bucket wall, detects the temperature distribution of the foot skin through infrared thermal imaging technology, and assists in judging whether there is a sensitive area or a slight wound on the foot. The voice collection unit adopts a microphone array and is arranged on one side of the top control panel of the foot soaking bucket, and collects user voice instructions; the collected voice signals are analyzed by the voice recognition algorithm built in the core control module, converted into corresponding control instructions, and trigger the music access or health knowledge explanation function.
3. The intelligent control system for the foot soaking bucket according to claim 2, characterized in that: The execution module includes a heating unit, a water flow adjustment unit, a massage unit, a drainage unit, an audio playing unit and a timing display unit; The heating unit adopts a PTC ceramic heating element, and the core control module adjusts the working power of the heating element through a PWM signal; the water flow adjustment unit includes a micro-silent water pump and an adjustable water outlet nozzle; the rotation speed of the micro water pump is controlled by the pulse signal output by the core control module, and the water flow intensity is adjusted in multiple gears; the adjustable water outlet nozzle is used for water outlet and water flow direction switching; The audio playing unit includes a loudspeaker and an audio driving circuit; The core control module accesses a specified music platform through the wireless communication module according to the user voice instruction or the APP setting, and the audio signal is played by the loudspeaker after being processed by the audio driving circuit. The speaker can play the audio of health care knowledge pushed by the core control module; The timing display unit adopts LED digital tube, the core control module starts timing according to the foot soaking time set by the user, and the timing data is transmitted to the digital display component of the user interaction module in real time; when the timing reaches the set time length, the end prompt sound is triggered, and the timing end prompt is displayed on the digital display component.
4. The intelligent control system for the foot soaking bucket according to claim 3, characterized in that: The safety protection module includes an electrical protection unit, a temperature protection unit, a water level protection unit and an emergency disposal unit; The electrical protection unit of the safety protection module adopts a leakage protection chip and an overvoltage and overcurrent protection circuit; the leakage protection chip detects the leakage current in the circuit in real time, and immediately triggers power-off protection when the leakage current exceeds the set threshold of 30 mA; the overvoltage and overcurrent protection circuit monitors the input voltage and working current in real time, and automatically cuts off the power supply when the voltage exceeds 250 V or the current exceeds 5 A; The emergency disposal unit includes an emergency stop button and an audible and visual alarm module; the emergency stop button is arranged on the side of the foot soaking barrel, and the user manually presses it in an emergency to immediately cut off the power supply of all execution modules; the audible and visual alarm module consists of a buzzer and an LED warning light, when a safety anomaly is detected, the buzzer emits a continuous alarm sound, the LED warning light flashes, and the core control module sends alarm information to the mobile terminal through the wireless communication module.
5. The intelligent control system for the foot soaking bucket according to claim 4, wherein: The wireless communication module establishes a connection with the cloud server through the WiFi module, uploads the user's foot soaking data to the cloud server for storage; the cloud server has a health care knowledge database built-in, based on the user's historical foot soaking data and physical information, it pushes the adapted health care knowledge to the core control module, the WiFi module supports access to an online music library; the core control module communicates with the mobile terminal at close range through the Bluetooth module, can directly pair with the user's mobile phone, and wirelessly play the music on the mobile phone; the wireless communication module can be upgraded, the user upgrades the firmware of the control system through the mobile terminal APP, optimizes the system performance and updates the health knowledge database.
6. The intelligent control system for the foot soaking bucket according to claim 5, wherein: The user interaction module includes a local interaction unit and a remote interaction unit; The local interaction unit includes a touch display screen, a digital display component, physical keys, status indicator lights and a voice interaction unit; the touch display screen is used to display the user's physical parameter input interface, foot soaking parameter setting interface, real-time foot soaking data, safety warning information, music playlist and health knowledge text content; the digital display component uses a high-brightness LED digital tube to independently display the real-time water temperature and the remaining foot soaking time; the physical keys include a power key, an emergency stop key, a mode switching key, a volume adjustment key, a music switching key and a health knowledge playing key; the status indicator lights include a power indicator light, a heating indicator light, a massage indicator light, a safety warning indicator light and a music playing indicator light; the voice interaction unit is connected with the voice collection unit and is used for user voice command input.
7. The intelligent control system for the foot soaking bucket according to claim 6, characterized in that: The personalized parameter matching algorithm generates corresponding target water temperature range, foot soaking time and water flow intensity level based on the user's input physical information, foot state and age information; The health knowledge pushing algorithm pushes the adaptive health care knowledge according to a preset time node based on user constitution information and foot soaking duration. The health knowledge pushing algorithm pushes the adaptive health care knowledge according to a preset time node based on user constitution information and foot soaking duration.