Intelligent switch circuit, panel and method

Abstract

The present invention relates to the technical field of intelligent switch panels, and specifically to an intelligent switch circuit, panel and method. The control circuit comprises: an offline voice module for receiving voice commands; and a control switch module for controlling the on and off of a switch; the offline voice module comprises a voice module and a Bluetooth module; the control switch module comprises a power conversion module and a relay module. The present invention is an embedded module based on offline voice recognition technology, and its main function is to perform voice processing locally without connecting to a cloud server, so that the intelligent switch panel can protect the privacy and security of users while realizing voice control; in addition, the offline voice module also has the advantages of low power consumption, high response speed, etc., which brings an excellent user experience to users.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent switch panels, and in particular to an intelligent switch circuit, panel and method. Background Art

[0002] With the continuous development of artificial intelligence and Internet of Things technologies, the smart home industry has ushered in unprecedented development opportunities. Among the many smart home devices, the smart voice switch panel, as the key interface for realizing home automation, plays a vital role in the smart home control system. It can respond to users' voice commands and realize remote control of home appliances such as lights, curtains, and air conditioners, greatly improving the convenience and comfort of life; however, the existing smart voice switch panels face some technical challenges and privacy issues.

[0003] Existing smart voice switch panels mostly rely on continuous network connection and real-time communication with cloud servers to perform functions such as voice recognition, command parsing, and device control. This design that is highly dependent on network and cloud computing resources may not only affect the user experience when the network connection is unstable or the server is down, but may also cause potential privacy leakage issues due to reliance on cloud processing and data storage. The user's voice data and device control commands may be intercepted by unauthorized third parties or leaked through the cloud service provider's data center during transmission and processing, threatening the user's personal information and family security.

[0004] To address this issue, the industry is working hard to develop new technologies to enhance the privacy protection capabilities of smart voice switch panels and reduce reliance on network connections. One possible solution is to perform local voice recognition and command processing rather than relying on cloud services. Smart voice switch panels that use local processing can respond instantly to user commands without transmitting data to the network, greatly reducing the risk of data leakage. Summary of the invention

[0005] In view of the technical problems existing in the prior art, the present invention provides an intelligent switch circuit, panel and method to solve the problem that the existing intelligent voice switch panel needs to be connected to the network and the cloud server and may leak user privacy.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] An intelligent switch circuit is provided, wherein the control circuit comprises:

[0008] An offline voice module for receiving voice commands; and

[0009] Control switch module, used to control the on and off of the switch;

[0010] The offline voice module includes a voice module and a Bluetooth module;

[0011] The control switch module includes a power conversion module and a relay module.

[0012] Furthermore, the power conversion module includes: a switch, a varistor RV1, a thermal relay FR1 and an X-type safety capacitor X1;

[0013] The N1 and N2 terminals of the switch are connected, the N1 terminal is connected to the first terminal of the varistor RV1, the X-type safety capacitor X1 and the thermal relay FR1 are connected in series between the L1 and L2 terminals of the switch, and the second terminal of the varistor RV1 is connected between the X-type safety capacitor X1 and the thermal relay FR1.

[0014] Furthermore, the power conversion module further includes: a rectifier bridge DB1, an electrolytic capacitor EC1, an electrolytic capacitor EC2, a capacitor C1, an inductor LR1 and a chip U1;

[0015] The first end of the rectifier bridge DB1 is connected to the N1 end of the switch, the second end of the rectifier bridge DB1 is connected to the L1 end of the switch, the third end of the rectifier bridge DB1 is connected to the fifth pin of the chip U1, the fourth end of the rectifier bridge DB1 is grounded, the third end of the rectifier bridge DB1 is also connected to the positive electrode of the electrolytic capacitor EC1, the fourth end of the rectifier bridge DB1 is also connected to the negative electrode of the electrolytic capacitor EC1, the third end of the rectifier bridge DB1 serves as a positive output end, and the fourth end of the rectifier bridge DB1 serves as a negative output end;

[0016] The fourth pin of the chip U1 is grounded, the eighth pin of the chip U1 is connected to the first pin of the chip U1 through the inductor LR1, the first pin of the chip U1 is also connected to the first end of the resistor R1 and the resistor R6, the resistor R1 and the resistor R6 are connected in parallel, and the second end of the resistor R1 is connected to the second pin and the third pin of the chip U1, the second end of the resistor R1 is connected to the positive electrode of the second electrolytic capacitor EC2, the negative electrode of the second electrolytic capacitor EC2 is grounded, the second end of the resistor R1 is connected to the first end of the capacitor C1 and the first end of the resistor R2, the second end of the capacitor C1 and the second end of the resistor R2 are grounded.

[0017] Furthermore, the relay module includes: a relay K1, a diode D1 and a transistor Q1;

[0018] The fourth end of the relay K1 is connected to the L2 end of the switch, the third end of the relay K1 is connected to the second end of the rectifier bridge DB1, the first end of the relay K1 is connected to the cathode of the diode D1, the second end of the relay K1 is connected to the anode of the diode D1, and the anode of the diode D1 is also connected to the collector of the transistor Q1;

[0019] The base of the transistor Q1 is connected to the first end of the resistor R3, and the base of the transistor Q1 is also connected to the emitter of the transistor Q1 through the resistor R4, and the emitter of the transistor Q1 is grounded;

[0020] The second end of the resistor R3 is connected to the offline voice module.

[0021] Furthermore, the voice module includes: a microphone MIC, a buzzer SP1, a transistor Q2 and a chip U2;

[0022] The second pin of the microphone MIC is connected to the fifth pin of the chip U2, the second pin of the microphone MIC is also connected to the sixth pin of the chip U2 through a capacitor C6, and the first pin of the microphone MIC is grounded;

[0023] The positive electrode of the buzzer SP1 is connected to a 5V DC power supply, the negative electrode of the buzzer SP1 is connected to the collector of the transistor Q2, the base of the transistor Q2 is connected to the fourth pin of the chip U2 through the resistor R5, and the emitter of the transistor Q2 is grounded;

[0024] The eighth pin of the chip U2 is grounded, and the seventh pin and the ninth pin of the chip U2 are grounded via capacitors C7 and C8 respectively.

[0025] Furthermore, the Bluetooth module includes: a three-terminal crystal oscillator F1 and a Bluetooth antenna ANT;

[0026] The first pin of the three-terminal crystal oscillator F1 is connected to the 23rd pin of the chip U2, the second pin of the three-terminal crystal oscillator F1 is connected to the 24th pin of the chip U2, and the third pin of the three-terminal crystal oscillator F1 is connected to the 22nd pin of the chip U2;

[0027] The 24th pin of the chip U2 is also grounded through the normally closed capacitor C2, the 23rd pin of the chip U2 is also grounded through the normally closed capacitor C3, the 22nd pin of the chip U2 is connected to the first end of the Bluetooth antenna ANT, the 21st pin of the chip U2 is connected to the first end of the Bluetooth antenna ANT through the capacitor C4, the 19th pin of the chip U2 is grounded through the capacitor C5, and the 18th terminal of the chip U2 is grounded through the capacitor C9;

[0028] The seventeenth terminal of the chip U2 is connected to the relay module.

[0029] An offline voice control panel is provided. The control panel has a built-in printed circuit board, and the printed circuit board is integrated with the above-mentioned intelligent switch circuit.

[0030] Furthermore, the control panel is mechanical or touch-type, and the mechanical or touch operation of the control panel to achieve the closing of the switch is not limited by the printed circuit board, and the printed circuit board to achieve the closing of the switch is not limited by the control panel.

[0031] An offline voice control method is provided, the control method comprising the following steps:

[0032] S1. Initial system setup and configuration, design and assemble the printed circuit board in the offline voice control panel, ensuring that it integrates all necessary electronic components, including but not limited to the voice processing chip U2, microphone MIC, relay K1 and buzzer SP1, as well as power management and communication modules;

[0033] S2. Install the control panel, select a suitable location to connect it to the household electrical box, and connect the corresponding interface on the printed circuit board to the circuit of the household electrical equipment to realize the subsequent control functions;

[0034] S3, initial device docking and self-test procedure, automatically perform device self-test after power on, check whether the key functions of microphone MIC, relay K1, and chip U2 are normal, check whether the connection between the printed circuit board and the mechanical or touch operation panel is good, and ensure that they can independently control the relay;

[0035] S4, user configuration, allows the user to enter initial settings through a mechanical or touch operation panel, bind to a specific Bluetooth device, and help the user complete the configuration through an indicator sound or visual indication;

[0036] S5, receiving voice commands: the user issues a voice command, the microphone MIC array receives the voice signal, and suppresses noise interference to ensure the quality of the voice signal;

[0037] S6, processing of voice commands, transmitting the captured voice signals to chip U2, which uses its built-in algorithm to parse the language content and convert the voice commands into clear control commands;

[0038] S7, execute the control command. According to the processed command, the chip U2 activates the relay K1 through its seventeenth pin. The relay K1 responds to the control signal of the chip U2 to turn on and off the power of the connected electrical appliance, thereby realizing control;

[0039] S8, feedback processing results, after the command processing is completed, the chip U2 controls the buzzer SP1, and the buzzer SP1 emits different signal sounds to provide feedback to the user, indicating that the operation is successful or there is an error;

[0040] S9, Fault detection and reporting, if an operation error occurs or the system self-check finds a problem, an error report will be immediately issued through the buzzer SP1, and the user will be reminded to check the system through the LED indicator or other visual feedback methods.

[0041] Furthermore, the voice command includes multiple languages, and the language recognition is achieved by implanting a language package, and the language package is implanted into the offline voice control panel via a Bluetooth antenna ANT;

[0042] The buzzer SP1 can be turned on or off through voice control.

[0043] The beneficial effects of the present invention are:

[0044] The present invention is an embedded module based on offline speech recognition technology. Its main function is to perform speech processing locally without connecting to a cloud server. This enables the smart switch panel to protect the user's privacy and security while realizing voice control. In addition, the offline speech module also has the advantages of low power consumption and high response speed, bringing users an excellent user experience.

[0045] After the offline voice module is introduced, the switch panel has the following advantages:

[0046] Improved user experience: The offline voice module's quick response and high recognition rate mean that users can control the switch panel with simple voice commands without complicated operations, greatly improving the user experience.

[0047] Enhanced privacy protection: Since the offline voice module performs voice processing locally, there is no need to upload user data to the cloud, which effectively protects user privacy.

[0048] Improved system stability: Compared with the traditional online voice module, the offline voice module does not require a network connection and is not affected by the network status, which significantly improves the system stability of the smart switch panel.

[0049] Cost reduction: The introduction of offline voice modules reduces the operating costs of smart switch panels, while also helping to reduce product prices, further promoting the popularization of smart homes.

[0050] Taking an actual application scenario as an example, suppose the user wants to turn off the lights in the bedroom when preparing to go to bed, but does not want to leave the warm bed. At this time, the user only needs to say "turn off the lights" to the smart switch panel, and the offline voice module will respond quickly and perform the corresponding operation. In such a scenario, the convenience and humanized design of the offline voice module are fully reflected.

[0051] Looking into the future, with the advancement of technology and the continuous upgrading of consumer demand, smart voice switch panels will develop more functions and application scenarios. Offline voice modules, as a key technology, will be more widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 The power conversion and relay module circuit diagram of the present invention;

[0053] Figure 2 This is a circuit diagram of the offline voice and Bluetooth module of the present invention;

[0054] Figure 3 It is a flow chart of the panel offline voice control method of the present invention; DETAILED DESCRIPTION

[0055] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In addition, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0056] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0060] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use scenarios of other materials.

[0061] The present invention provides the following preferred embodiments:

[0062] Example 1: Reference Figure 1 to Figure 2 As shown, in this embodiment, a smart switch circuit is proposed. The circuit design allows users to control the on / off status of home appliances through voice commands, while also reducing the risk of network dependence and data privacy leakage. The core components of the smart switch circuit include an offline voice module and a control switch module, which work together to provide the function of offline voice control.

[0063] Furthermore, the offline voice module includes both a voice recognition module and a Bluetooth module. The voice recognition module is responsible for capturing and processing the user's voice input in real time, which is achieved by an advanced digital signal processor (DSP) or similar microprocessor integrated inside the module. The processor runs an advanced voice recognition algorithm that can convert the user's voice instructions into machine-interpretable control instructions. In order to improve the accuracy of recognition, the voice module can be pre-installed with a library of predefined instructions to match and parse the user's voice input. At the same time, the Bluetooth module, as a wireless communication means, allows the voice module to communicate quickly and securely with other smart devices or mobile phone applications, so that even in an off-network environment, the user can still use a mobile device to configure or update the settings of the voice module.

[0064] Furthermore, the control switch module includes a power conversion module and a relay module. The power conversion module accepts standard household alternating current (AC) power and converts it into direct current (DC) power required by the offline voice module and other electronic components. The power conversion module is designed to ensure stable voltage conversion to prevent damage to electronic components due to voltage fluctuations. The relay module is essentially an actuator that implements switch control. It can connect or disconnect the circuit according to the instructions of the offline voice module, thereby controlling the power status of the electrical equipment connected to it. The relay module contains multiple relay units, which correspond to different electrical equipment. Each relay unit can independently respond to control instructions to achieve refined electrical control.

[0065] In order to optimize performance and enhance user experience, the intelligent switch circuit in this embodiment can also integrate some auxiliary components, such as a status indicator light to provide feedback to the user on the current working status of the device, and a noise suppression component to eliminate background noise and improve the accuracy of speech recognition. In addition, the circuit design adopts a modular design, so that modules can be replaced quickly and conveniently during future technology updates or maintenance, thereby extending the service life of the system and reducing maintenance costs.

[0066] The design principle of the intelligent switch circuit of this embodiment is to ensure that the system is easy to operate, responds quickly, and has a high degree of security and reliability. Such a design not only provides a smart home control solution that does not rely on the network, but also protects the user's privacy from being accidentally or intentionally violated by the outside world, thus becoming an innovative technology in the growing smart home market.

[0067] Example 2: Reference Figure 1As shown, based on the intelligent switch circuit described in Example 1, this embodiment further improves the design of the power conversion module to ensure that the module can efficiently and safely provide the offline voice module and the control switch module with the stable DC power required. In this embodiment, the power conversion module is designed to integrate a multi-layer safety protection mechanism, including a switch, a varistor RV1, a thermal relay FR1, and an X-type safety capacitor X1 to ensure the long-term stable operation of the circuit and prevent power-related safety risks.

[0068] Specifically, the switch of the power conversion module is the main interface for users to control the power on and off, and plays a key role in the safety of home appliances. In terms of design, the N1 and N2 terminals of the switch are connected to each other, so that it can switch the conduction state of the power line when triggered. The N1 terminal is connected in parallel with the first terminal of the varistor RV1, and the second terminal of RV1 is connected to the power line. The role of the varistor RV1 is to detect and respond to overvoltage events in the power line, helping to suppress voltage spikes in the power supply, thereby protecting the circuit from damage due to sudden overvoltage.

[0069] Furthermore, the X-type safety capacitor X1 and the thermal relay FR1 are connected in series between the L1 and L2 terminals of the switch, providing an additional filtering and overload protection barrier for the entire intelligent switch circuit. The X-type safety capacitor X1 is used to filter out high-frequency electromagnetic interference (EMI) in the power supply line, maintain the purity of the power supply quality, and prevent current surges in overvoltage situations. The thermal relay FR1 in this system plays the role of sensing overheating and disconnecting the power supply line when necessary, effectively preventing the risk of fire caused by circuit overload or abnormal heating.

[0070] Furthermore, while ensuring stable power conversion, the overall design of the intelligent switch circuit meets safety standards. The addition of these components increases the resilience and durability of the system and reduces the risk of electrical failure. The entire power conversion module is compact, ensuring that it can maintain full functionality without excessively increasing the size and complexity of the offline voice control panel.

[0071] By comprehensively using advanced electronic components and carefully designed power management strategies, the power conversion module of the present invention can provide a stable and safe power supply for the entire intelligent switch circuit without affecting the performance of the offline voice module, thereby making the intelligent switch circuit more reliable and suitable for long-term use in daily home environments.

[0072] Example 3: Reference Figure 1As shown, the intelligent switch circuit proposed in this embodiment has a more detailed design in the power conversion module to ensure its working stability and safety. In this embodiment, the power conversion module further integrates the rectification, filtering and voltage stabilization functions to provide high-quality DC power for the intelligent switch circuit.

[0073] Furthermore, the rectifier bridge DB1 is one of the core parts of the power conversion module, which is responsible for converting the AC voltage connected to the switch N1 end into a DC voltage. The design of the rectifier bridge DB1 gives way to the AC power supply at both ends of the switch, which is connected to the first end and the second end of the rectifier bridge respectively. The third end of the output end is further filtered by the electrolytic capacitor EC1. The function of the capacitor is to reduce the DC output fluctuation and provide a stable power input to the chip U1 and the entire circuit. The negative pole of the electrolytic capacitor EC1 is grounded with the fourth end of the rectifier bridge DB1 to ensure voltage stability and grounding safety.

[0074] Furthermore, the chip U1 is an integrated power management IC, which is responsible for further stabilizing the rectified DC voltage to ensure that the output voltage meets the requirements of the intelligent switch circuit. The fourth pin of the chip U1 is connected to the fourth terminal of the rectifier bridge to achieve the grounding function; at the same time, the fifth pin receives the DC voltage input from the rectifier bridge.

[0075] Furthermore, the eighth pin of the chip U1 is connected to the first pin through an inductor LR1, and this configuration is used to build a voltage-stabilizing feedback loop, or participate in the construction of a buck converter. Inductor LR1 also acts as a filter, smoothing current fluctuations, and works with the chip to maintain a stable output voltage. In addition, a pair of parallel resistors R1 and R6 can be used to set the operating parameters of the circuit, or as part of a feedback protection mechanism.

[0076] Furthermore, the resistor R1 connected to the second and third terminals of the chip U1 is also connected to the second electrolytic capacitor EC2, and is connected in series with the capacitor C1. This configuration is likely to further smooth and filter the voltages at the input and output ends of the chip, enhancing the noise suppression capability of the power supply. The resistor R1 can also form an RC filter network with the capacitor C1, which helps filter out any residual high-frequency noise that may exist and ensures that the power supply line is clean and stable.

[0077] Furthermore, the introduction of electrolytic capacitor EC2 may be to buffer and stabilize the voltage fluctuations at both ends of chip U1 and increase the stability of the power supply. The design of resistor R2 and capacitor C1 connected in parallel to ground may be used to filter out high-frequency noise in the power line, keep the circuit clean and stable, and ensure that the offline voice module and control switch module receive high-quality power supply.

[0078] The design of the power conversion module of this embodiment cleverly combines key functions such as rectification, filtering, and voltage stabilization to create an efficient and safe power system, which is designed to provide stable and reliable power support for the intelligent switch circuit. In this way, the system can not only meet the control needs of home appliances, but also effectively prevent potential risks caused by power failures, greatly improving the overall performance and safety of the intelligent switch circuit.

[0079] Example 4: Reference Figure 1 As shown, this embodiment further introduces a relay module, which mainly provides an interface capable of high current driving for the offline voice control system. The relay module includes a relay K1, a diode D1 and a transistor Q1, which work together to form a driving part in the circuit and can control higher power loads, such as household appliances.

[0080] Furthermore, relay K1 is the actuator in this circuit, and its control circuit design is crucial. The third terminal of K1 is connected to the second terminal of the rectifier bridge DB1, and the fourth terminal is connected to the L2 terminal of the switch. Such a connection ensures that relay K1 can be activated or disconnected when receiving the corresponding control signal from the power module. Diode D1 plays an important role here. It is connected in series with relay K1 and prevents the high voltage reverse shock generated when the relay is disconnected, which may damage other circuit components.

[0081] Furthermore, transistor Q1 is used as a switch in this module to control the coil of relay K1. Its base is connected to the output of the offline voice module through resistor R3. When the offline voice module triggers the corresponding control signal, the base receives current, which makes transistor Q1 saturated and connects the collector and emitter, which enables current to flow through the coil of relay K1, closing the relay and further controlling the high-power load connected to the other end of the relay. The emitter of transistor Q1 is grounded to provide a stable reference point, and self-biasing is achieved through resistor R4 to ensure that the transistor can work stably and effectively.

[0082] This embodiment enables the offline voice module to indirectly control high voltage or high current loads. In situations where a high power load needs to be controlled by a microcontroller or other low power device, transistor Q1 acts as an intermediate amplifier, which receives a start from a low power signal and safely drives the coil of relay K1, thereby achieving control of the high current load. This arrangement fully considers the protection of the electrical circuit, avoids the interference of voltage spikes generated by relay operation on the intelligent switch circuit, and ensures the long-term stable operation of the system. By combining advanced power management and efficient relay control, this intelligent switch circuit not only provides stable power delivery, but also has the ability to expand the control of high power devices such as home appliances, realizing intelligent management while ensuring the safety and reliability of the circuit.

[0083] Example 5: Reference Figure 2 As shown, based on the relay module described in Example 4, this embodiment further refines the intelligent switch circuit, wherein the voice module plays a key role in receiving and responding to user commands. This module includes a microphone MIC, a buzzer SP1, a transistor Q2, and a chip U2. Among them, the MIC microphone is used as an input device to capture the user's voice commands, and the chip U2 acts as a central processing unit for processing these commands. The buzzer SP1 is used as an output device to provide sound feedback to the user.

[0084] Furthermore, the second pin of the microphone MIC is connected to the fifth pin of the chip U2, which is responsible for converting the voice signal into an electrical signal and transmitting it to the U2 chip for processing. In order to remove unnecessary noise and ensure that the electrical signal transmitted to the chip is purer and more accurate, the second pin is also connected to the sixth pin of the chip U2 through a capacitor C6. This configuration acts as a high-pass filter, allowing only signals above a specific frequency to pass through to prevent interference from low-frequency noise. The first pin of the microphone MIC is grounded to provide a reference potential to ensure the stability and reliability of the microphone signal.

[0085] Furthermore, the positive electrode of the buzzer SP1 as a feedback element is directly connected to the 5V DC power supply, and its negative electrode is connected to the collector of the transistor Q2. The base of the Q2 transistor is connected to the fourth pin of the chip U2 through the resistor R5, and its emitter is grounded. In terms of the control of the buzzer, when the fourth pin of the chip U2 generates a corresponding signal, the base current is adjusted through the resistor R5, so that the transistor Q2 is turned on and drives the buzzer SP1 to sound. In this way, the user can hear feedback from the buzzer, such as different prompt tones when the recognition of the voice command is successful or failed.

[0086] Furthermore, chip U2 is responsible for processing the analog signal of the micro-microphone and generating corresponding control signals. In order to ensure the stable operation of chip U2 and provide sufficient decoupling and filtering functions, the eighth pin is grounded, while the seventh pin and the ninth pin are grounded through capacitors C7 and C8 respectively. The two capacitors may correspond to the positive power supply decoupling and analog / digital ground decoupling of the chip respectively, to ensure the overall performance of the chip in a complex electromagnetic environment and suppress interference from the power supply line.

[0087] The voice module of this embodiment ensures accurate capture and efficient processing of voice signals, as well as timely audio feedback, through a simple and efficient structure. It can be used as an interface for communication between the user and the offline voice control system, and combined with other modules such as relay modules and power conversion modules, it can realize intelligent control of high-power devices such as household appliances. After the user issues a voice command, it is captured by the microphone, processed by the U2 chip, and the buzzer SP1 is controlled by the transistor Q2 according to the processing result, providing feedback to the user, and activating the corresponding control relay at the same time, realizing simple control of complex operations. In this way, the voice module not only enhances the interactivity of the intelligent switch circuit, but also greatly improves the intelligence level and user experience of the system.

[0088] Example 6: Reference Figure 2 As shown, this embodiment illustrates the Bluetooth module integrated in the smart switch circuit, which provides the user with the ability to communicate with external devices such as smart phones or tablets via Bluetooth. The Bluetooth module includes a three-terminal crystal oscillator F1 and a Bluetooth antenna ANT, both of which are associated with the chip U2 to ensure accurate generation and effective transmission of communication signals.

[0089] Furthermore, the three-terminal crystal oscillator F1 provides a stable clock frequency signal to the chip U2, which is the key to the normal operation of the entire Bluetooth communication system. The first pin and the second pin of the crystal oscillator are respectively connected to the 23rd pin and the 24th pin of the chip U2, and the third pin is connected to the 22nd pin of the chip U2. This connection enables the crystal oscillator to provide a stable clock signal for the chip to ensure the synchronization of data transmission. In addition, the 24th pin is grounded through a normally closed capacitor C2, and the 23rd pin is grounded through a normally closed capacitor C3. This layout is to provide a decoupling function to stabilize the operation of the crystal oscillator and filter out possible noise interference.

[0090] Furthermore, the Bluetooth antenna ANT is the link between the chip U2 and the external Bluetooth device, and its first end is connected to the 22nd pin of the chip U2 to transmit and receive wireless signals. The 21st pin of the chip U2 is connected to the first end of the Bluetooth antenna ANT through the capacitor C4, so that the chip can cooperate with the antenna to complete the signal transmission. In addition, in order to ensure the working stability, the 19th pin of the chip U2 is grounded through the capacitor C5, and the 18th pin is grounded through the capacitor C9, which can be understood as further enhanced decoupling and battery protection.

[0091] Furthermore, the entire Bluetooth module is designed to enable the intelligent switch circuit to be seamlessly integrated into the modern smart home ecosystem. Users can not only control the circuit directly through voice commands, but also use smart devices as control interfaces through Bluetooth connections, enhancing the flexibility and convenience of use. When chip U2 receives instructions from the Bluetooth module, it transfers the operation signal to the relay module connected to the seventeenth terminal through internal logic processing, thereby driving high-power devices such as home appliances.

[0092] The smart switch circuit of this embodiment can provide diversified control methods and good user experience through the synergy with the Bluetooth module. It not only supports traditional offline voice command control, but also seamlessly expands the remote control capabilities of smart devices based on Bluetooth. Through this design, the smart switch circuit can achieve intelligent control of home devices without relying on the Internet, while using Bluetooth technology to build a reliable short-range wireless communication network, making the overall system more intelligent and more responsive, providing users with a more convenient smart life experience.

[0093] Example 7: Reference Figure 1 and Figure 2 As shown, in this embodiment, the panel is designed to be equipped with an embedded printed circuit board (PCB) on which the above-mentioned intelligent switch circuit is integrated. The core goal of this design is to develop a user-friendly, feature-rich and environmentally responsive intelligent control interface that can work independently of the Internet, thereby greatly improving the stability and security of the system.

[0094] The printed circuit board is carefully laid out so that all electronic components and connections are fully integrated to ensure the compactness and efficiency of the circuit. The electronic components on the circuit board include but are not limited to sensors, microphones, processors, buzzers, power modules, relays, and Bluetooth modules that provide wireless communication capabilities. Together, these components form a system that can process and respond to user voice commands and can interact and communicate with other smart devices via Bluetooth.

[0095] Furthermore, a microphone is integrated on the circuit board and is responsible for capturing the user's voice commands. The buzzer provides system feedback, such as command confirmation signals or error prompts. The relay module serves as the hub of the control circuit and is connected to chip U2, which is responsible for analyzing and processing the received voice signals. By integrating different actuators, such as relays, the system can control different types of household appliances or other high-power devices.

[0096] Furthermore, the Bluetooth module enables the control panel to connect wirelessly. In the absence of Wi-Fi or other networking conditions, users can still use smartphones, tablets and other devices to pair and communicate with the control panel via Bluetooth to perform remote control. This feature not only improves the convenience of user operation, but also provides more possibilities for home automation.

[0097] Furthermore, the entire control panel can be designed as a modular unit that is easy to install and maintain, suitable for installation on a wall or built-in furniture. This control panel is particularly user-friendly because it is intuitive to operate without complicated programs or additional remote control devices.

[0098] The offline voice control panel of this embodiment uses a built-in printed circuit board with highly complex circuits to achieve direct voice control of household appliances and other devices, while supporting interaction with smart devices via Bluetooth. Due to the use of offline processing, the system improves the response speed while further ensuring the stability of operation and the security of data. Users can rely on a single control panel to achieve intelligent control of the entire home environment. These features together constitute its strong potential as the core control unit of the future smart home.

[0099] Embodiment 8: In this embodiment, the control panel can be a traditional mechanical button panel or a modern touch panel, and the two designs have their own characteristics. The mechanical panel realizes the closing of the switch by pressing the physical button, while the touch panel realizes the input of the control command by touch sensing. The common feature of these two control panels is that the execution of their operations is not restricted by the printed circuit board, that is, the user can directly control the connected device through physical operation or touch, without having to go through the electronic components and modules on the printed circuit board.

[0100] At the same time, the printed circuit board is also equipped with an independent control mechanism to achieve the closing of the switch, which is not limited by the physical or touch operation of the control panel. It is understandable that the user can control the connected device through the functions integrated on the printed circuit board without having to directly operate the control panel. For example, when the user issues a voice command, the voice recognition system integrated on the printed circuit board will process these commands and convert them into electrical signals, thereby triggering the closing or opening of the switch to achieve control of the device.

[0101] Furthermore, the printed circuit board integrates various electronic components, including but not limited to a voice processor, a microphone array, a relay module, a Bluetooth communication module, etc. These components work together to form a complete offline voice control system. When the user issues a control command through voice, the voice processor starts working, identifies and parses the command, and then triggers the relay module to perform the actual control operation on the device. At the same time, the integration of the Bluetooth module ensures that the panel can still be controlled by a Bluetooth-connected device even in an offline environment, further enhancing the flexibility and versatility of the control.

[0102] This design allows users to operate the control panel in multiple ways. Even when one control method (such as voice commands) is unavailable, users can still maintain control of the system through another method (such as physical buttons or touch). This integration of multiple control methods not only improves the user experience, but also increases the reliability and redundancy of the system. In other words, even if the offline voice control system fails or does not respond, users can still control the device by directly operating the mechanical buttons or touch panel.

[0103] The structure of the offline voice control panel of this embodiment enables it to be widely used in homes, offices or any place that requires intelligent control solutions. It not only provides users with a convenient platform that can be controlled by voice, physical operation and touch, but also because it has the characteristics of multiple control methods coexisting, it can maintain efficient and stable performance in various environments, truly realizing intelligent control solutions.

[0104] Example 9: Reference Figure 3 As shown, this embodiment provides a control method for an offline voice control panel, comprising the following steps:

[0105] Initial system setup and configuration, design and assemble the printed circuit board within the offline voice control panel, ensuring it integrates all necessary electronic components, including but not limited to the voice processing chip U2, microphone MIC, relay K1 and buzzer SP1, as well as power management and communication modules;

[0106] Install the control panel, select a suitable location to connect it to the household electrical box, and connect the corresponding interface on the printed circuit board to the circuit of the electrical equipment in the home to realize the subsequent control functions;

[0107] Initial device docking and self-test procedure, after power on, the device will automatically perform self-test to check whether the key functions of microphone MIC, relay K1, and chip U2 are normal, and check whether the connection between the printed circuit board and the mechanical or touch operation panel is good to ensure that they can independently control the relay;

[0108] User configuration, which allows users to enter initial settings through a mechanical or touch operation panel, bind to a specific Bluetooth device, and help users complete the configuration through audible or visual instructions;

[0109] Receiving voice commands: When the user issues a voice command, the microphone MIC array receives the voice signal and suppresses noise interference to ensure the quality of the voice signal.

[0110] Processing of voice commands: The captured voice signals are transmitted to chip U2, which uses its built-in algorithm to parse the language content and convert the voice commands into clear control commands.

[0111] Execute the control command. According to the processed command, the chip U2 activates the relay K1 through its seventeenth pin. The relay K1 responds to the control signal of the chip U2 to turn on and off the power of the connected electrical appliance, thereby realizing control;

[0112] Feedback processing results, after the command processing is completed, the chip U2 controls the buzzer SP1, and the buzzer SP1 emits different signal sounds to provide feedback to the user, indicating that the operation is successful or there is an error;

[0113] Fault detection and reporting: If an operation error occurs or the system self-check finds a problem, an error report will be immediately issued through the buzzer SP1, and the user will be reminded to check the system through the LED indicator or other visual feedback methods.

[0114] Example 10: Reference Figure 3 As shown, in this embodiment, the offline voice control method can support command recognition in multiple languages, and this function is achieved by implanting specific language packages in the offline voice control panel. These language packages contain data such as grammar, vocabulary, and voice patterns of the corresponding language, so that the language processing chip U2 can recognize and process commands in non-single language environments.

[0115] In the process of implementing this multi-language support feature, you can use the following methods:

[0116] First, the offline voice control panel needs to be equipped with a hardware module capable of Bluetooth communication, including a Bluetooth antenna ANT. This module enables the device to communicate wirelessly with other Bluetooth-compatible devices, such as smartphones, tablets or computers. Users can send new language packages to the offline voice control panel through a dedicated implantation tool or application. The process is generally as follows: the user selects the required language package and starts the implantation process through application instructions. The application sends the language package wirelessly to the offline voice control panel's printed circuit board for storage via the Bluetooth antenna ANT.

[0117] Furthermore, after the printed circuit board receives the language package data, the program built into the chip U2 will automatically update synchronously, overwriting or adding a new language module. This ensures that no matter what language the user speaks, the system can effectively recognize and respond.

[0118] Furthermore, for the control of the buzzer SP1, the present embodiment provides a convenient way. In order to better meet the needs of different users, the buzzer SP1 is designed to be switch-controlled by voice commands. In this way, when a quiet environment is required or when you do not want to be disturbed, the buzzer can be easily turned off by a simple voice command, and when you need to hear feedback, you can also turn it on by voice commands.

[0119] To implement this feature, you need to preset command keywords for turning the buzzer on and off in the system's voice recognition module, such as "turn on the prompt sound" or "turn off the prompt sound". After receiving these voice commands, chip U2 will control the circuit connection of the buzzer SP1 through the corresponding signal control logic to turn it on and off.

[0120] This design improves the user experience and flexibility of the voice control panel, allowing users to set the prompt tone status according to personal preferences and actual conditions; at the same time, the multi-language support function also greatly broadens the scope of application of the system, making it easy to use in a multi-language environment.

[0121] The benefit of this embodiment is that the language package can be updated and implanted through the Bluetooth antenna and the buzzer can be freely turned on or off through voice commands, providing an intelligent control solution that is highly adaptable, user-friendly and convenient for multi-context applications, which undoubtedly increases the market competitiveness of the product and user satisfaction.

[0122] The beneficial effects of the present invention are specifically embodied in that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent switch circuit, characterized in that: The intelligent switch circuit comprises: An offline voice module for receiving voice commands; and Control switch module, used to control the on and off of the switch; The offline voice module includes a voice module and a Bluetooth module; The control switch module includes a power conversion module and a relay module; The power conversion module includes: a switch, a varistor RV1, a thermal relay FR1 and an X-type safety capacitor X1; The N1 and N2 terminals of the switch are connected, the N1 terminal is connected to the first terminal of the varistor RV1, the X-type safety capacitor X1 and the thermal relay FR1 are connected in series between the L1 and L2 terminals of the switch, and the second terminal of the varistor RV1 is connected between the X-type safety capacitor X1 and the thermal relay FR1; The power conversion module also includes: a rectifier bridge DB1, an electrolytic capacitor EC1, an electrolytic capacitor EC2, a capacitor C1, an inductor LR1 and a chip U1; The first end of the rectifier bridge DB1 is connected to the N1 end of the switch, the second end of the rectifier bridge DB1 is connected to the L1 end of the switch, the third end of the rectifier bridge DB1 is connected to the fifth pin of the chip U1, the fourth end of the rectifier bridge DB1 is grounded, the third end of the rectifier bridge DB1 is also connected to the positive electrode of the electrolytic capacitor EC1, the fourth end of the rectifier bridge DB1 is also connected to the negative electrode of the electrolytic capacitor EC1, the third end of the rectifier bridge DB1 serves as a positive output end, and the fourth end of the rectifier bridge DB1 serves as a negative output end; The fourth pin of the chip U1 is grounded, the eighth pin of the chip U1 is connected to the first pin of the chip U1 through the inductor LR1, the first pin of the chip U1 is also connected to the first end of the resistor R1 and the resistor R6, the resistor R1 and the resistor R6 are connected in parallel, and the second end of the resistor R1 is connected to the second pin and the third pin of the chip U1, the second end of the resistor R1 is connected to the positive electrode of the second electrolytic capacitor EC2, the negative electrode of the second electrolytic capacitor EC2 is grounded, the second end of the resistor R1 is connected to the first end of the capacitor C1 and the first end of the resistor R2, and the second end of the capacitor C1 and the second end of the resistor R2 are grounded; The relay module includes: a relay K1, a diode D1 and a transistor Q1; The fourth end of the relay K1 is connected to the L2 end of the switch, the third end of the relay K1 is connected to the second end of the rectifier bridge DB1, the first end of the relay K1 is connected to the cathode of the diode D1, the second end of the relay K1 is connected to the anode of the diode D1, and the anode of the diode D1 is also connected to the collector of the transistor Q1; The base of the transistor Q1 is connected to the first end of the resistor R3, and the base of the transistor Q1 is also connected to the emitter of the transistor Q1 through the resistor R4, and the emitter of the transistor Q1 is grounded; The second end of the resistor R3 is connected to the offline voice module; The voice module includes: a microphone MIC, a buzzer SP1, a transistor Q2 and a chip U2; The second pin of the microphone MIC is connected to the fifth pin of the chip U2, the second pin of the microphone MIC is also connected to the sixth pin of the chip U2 through a capacitor C6, and the first pin of the microphone MIC is grounded; The positive electrode of the buzzer SP1 is connected to a 5V DC power supply, the negative electrode of the buzzer SP1 is connected to the collector of the transistor Q2, the base of the transistor Q2 is connected to the fourth pin of the chip U2 through the resistor R5, and the emitter of the transistor Q2 is grounded; The eighth pin of the chip U2 is grounded, and the seventh pin and the ninth pin of the chip U2 are grounded via capacitors C7 and C8 respectively.

2. The intelligent switch circuit according to claim 1, characterized in that: The Bluetooth module includes: a three-terminal crystal oscillator F1 and a Bluetooth antenna ANT; The first pin of the three-terminal crystal oscillator F1 is connected to the 23rd pin of the chip U2, the second pin of the three-terminal crystal oscillator F1 is connected to the 24th pin of the chip U2, and the third pin of the three-terminal crystal oscillator F1 is connected to the 22nd pin of the chip U2; The 24th pin of the chip U2 is also grounded through the normally closed capacitor C2, the 23rd pin of the chip U2 is also grounded through the normally closed capacitor C3, the 22nd pin of the chip U2 is connected to the first end of the Bluetooth antenna ANT, the 21st pin of the chip U2 is connected to the first end of the Bluetooth antenna ANT through the capacitor C4, the 19th pin of the chip U2 is grounded through the capacitor C5, and the 18th terminal of the chip U2 is grounded through the capacitor C9; The seventeenth terminal of the chip U2 is connected to the relay module.

3. An offline voice control panel, characterized in that: The control panel has a built-in printed circuit board, and the printed circuit board is integrated with the intelligent switch circuit as claimed in any one of claims 1 to 2.

4. The offline voice control panel according to claim 3, characterized in that: The control panel is mechanical or touch-type, and the mechanical or touch operation of the control panel to achieve the closing of the switch is not limited by the printed circuit board, and the printed circuit board to achieve the closing of the switch is not limited by the control panel.

5. A control method for an offline voice control panel according to any one of claims 3 to 4, characterized in that: The control method comprises the following steps: Initial system setup and configuration, design and assemble the printed circuit board within the offline voice control panel, ensuring it integrates all necessary electronic components, including but not limited to the voice processing chip U2, microphone MIC, relay K1 and buzzer SP1, as well as power management and communication modules; Install the control panel, select a suitable location to connect it to the household electrical box, and connect the corresponding interface on the printed circuit board to the circuit of the electrical equipment in the home to realize the subsequent control functions; Initial device docking and self-test procedure, after power on, the device will automatically perform self-test to check whether the key functions of microphone MIC, relay K1, and chip U2 are normal, and check whether the connection between the printed circuit board and the mechanical or touch operation panel is good to ensure that they can independently control the relay; User configuration, which allows users to enter initial settings through a mechanical or touch operation panel, bind to a specific Bluetooth device, and help users complete the configuration through audible or visual instructions; Receiving voice commands: When the user issues a voice command, the microphone MIC array receives the voice signal and suppresses noise interference to ensure the quality of the voice signal. Processing of voice commands: The captured voice signals are transmitted to chip U2, which uses its built-in algorithm to parse the language content and convert the voice commands into clear control commands. Execute the control command. According to the processed command, the chip U2 activates the relay K1 through its seventeenth pin. The relay K1 responds to the control signal of the chip U2 to turn on and off the power of the connected electrical appliance, thereby realizing control; Feedback processing results, after the command processing is completed, the chip U2 controls the buzzer SP1, and the buzzer SP1 emits different signal sounds to provide feedback to the user, indicating that the operation is successful or there is an error; Fault detection and reporting: If an operation error occurs or the system self-check finds a problem, an error report will be immediately issued through the buzzer SP1, and the user will be reminded to check the system through the LED indicator or other visual feedback methods.

6. The control method of the offline voice control panel according to claim 5, characterized in that: The voice command includes multiple languages, and the language recognition is realized by implanting a language package, and the language package is implanted into the offline voice control panel via a Bluetooth antenna ANT; The buzzer SP1 can be turned on or off through voice control.

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