Hybrid powered smart voice speaker

Abstract

The utility model discloses a kind of hybrid power supply type intelligent voice sound box, it is related to intelligent sound technology field, the utility model is by constructing front end supports multiple input, rear end adopts the hybrid power supply framework of common processing link, solve the single and internal circuit redundant problem of intelligent voice sound box power supply mode. Compared with the non-mixed power supply sound box of relying on single special-purpose adapter, it is freed from the dependence on specific power supply, so that the sound box can directly use the ubiquitous Ethernet power supply network in commercial environment, or general USB-PD fast charging power supply, expand the deployment scene and use convenience of product. At the same time, this series structure from multiple input to single integration processing fundamentally replaces the redundant design of parallel multiple independent circuits, realizes circuit simplification and cost control.

Description

Technical Field

[0001] This utility model belongs to the field of intelligent speaker technology, and specifically relates to a hybrid power supply type intelligent voice speaker. Background Technology

[0002] The power supply architecture of existing smart speakers is generally simple, heavily reliant on fixed-specification dedicated power adapters. This rigid power specification leads to poor power adaptability and incompatibility with modern universal power supply standards such as Power over Ethernet (PoE) or Universal Serial Bus (USB) power delivery, severely limiting their deployment flexibility and ease of use. To overcome this deficiency, some existing designs attempt to set up multiple independent input interfaces, but each usually also has its own independent power conversion circuit. This simple parallel hardware stacking actually creates redundancy in circuit components and complicates the system structure, increasing material costs and printed circuit board footprint, resulting in low overall integration and failing to fundamentally solve the problem of power supply chain optimization. Utility Model Content

[0003] In view of the deficiencies in the existing technology, this utility model provides a hybrid power supply type smart voice speaker to solve the above-mentioned technical problems.

[0004] A hybrid power supply smart voice speaker includes the following components: Main control unit, storage unit, power input interface, power supply protocol matching module, selection switch, DC / DC converter, power management unit, wireless network module, Bluetooth communication module, microphone and sound unit; The input terminal of the selector switch is coupled to two power supplies. One power source comes from the power input interface and is processed by the power supply protocol matching module; the other power source comes directly from the power input interface. The output of the selection switch supplies the selected power supply to the input of the DC / DC converter; The output terminal of the DC / DC converter is connected to the power management unit, and is used to provide the converted voltage to the power management unit. The power management unit is used to supply power to the main control unit, audio processing circuit, wireless network module and Bluetooth communication module; The main control unit is electrically connected to the audio processing circuit, the wireless network module, the Bluetooth communication module, and the storage unit, respectively. The input terminal of the audio processing circuit is connected to the microphone to receive audio signals, and the output terminal of the audio processing circuit is connected to the sound-producing unit to drive it to produce sound.

[0005] Preferably, the power input interface includes: A network port supporting Power over Ethernet as the first output interface; The power port, which serves as the second output interface, is physically selected from at least one of the interface sets consisting of a universal serial bus interface, a Type-C interface, a DC power connector, and a pluggable terminal block.

[0006] Preferably, a front-end protection unit is also included; The pre-stage protection unit is connected in series between the first output interface and the power supply protocol matching module, and in series between the second output interface and the selection switch.

[0007] Preferably, the circuit structure of the pre-stage protection unit includes a transient voltage suppression diode and a metal oxide varistor, both of which are connected across the network connection line.

[0008] Preferably, the system also includes an infrared module, which is electrically connected to the main control unit and is used to detect whether the user has entered the effective controllable range of the audio control system.

[0009] Preferably, the system also includes a gesture recognition module, which comprises an acquisition unit and a recognition unit. The acquisition unit is used to receive gesture signals; The recognition unit is electrically connected to the acquisition unit and the main control unit, and is used to detect the gesture signal received by the acquisition unit.

[0010] Preferably, the system also includes a voice recognition module, which is electrically connected to both the microphone and the main control unit, and is used to recognize sound signals.

[0011] Preferably, the system also includes a smart home wireless module, which is a CDZ-C2MG2-2100-00 smart home wireless module. The CDZ-C2MG2-2100-00 smart home wireless module is connected to the wireless network module via a GPIO interface.

[0012] Preferably, the storage unit uses H5TC4GEFR-RDA512M double-rate synchronous dynamic random access memory.

[0013] Preferably, the DC / DC converter includes at least one of a linear regulator, a switching regulator, and a modular power supply.

[0014] The beneficial effects of this invention are as follows: By constructing a hybrid power supply architecture that supports multiple inputs at the front end and uses a shared processing link at the back end, the problems of single power supply methods and redundant internal circuits in smart voice speakers are solved. The power supply protocol matching module and the selection switch at the front end work together to identify and select the input power supply, and direct a single path to a shared post-processing circuit composed of a DC / DC converter and a power management unit, thereby providing stable power to modules with varying power consumption, such as the main control unit, audio amplifier, and microphone array within the speaker. Compared with non-hybrid power supply speakers that rely on a single dedicated adapter, the advantage lies in eliminating the dependence on a specific power supply, allowing the speaker to directly utilize the Ethernet power supply network commonly found in commercial environments, or the universal USB-PD fast charging power supply, expanding the product's deployment scenarios and ease of use. At the same time, this series structure from multiple inputs to single-channel integrated processing fundamentally replaces the redundant design of multiple independent circuits in parallel, achieving circuit simplification and cost control. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of a hybrid power supply intelligent voice speaker provided by this utility model; Figure 2 This is a schematic diagram of the gesture recognition module of a hybrid power supply smart voice speaker provided by this utility model. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0019] The embodiments of the utility model will now be described in detail with reference to the accompanying drawings.

[0020] like Figure 1 As shown, a hybrid-powered smart voice speaker includes the following components: Main control unit, storage unit, power input interface, power supply protocol matching module, selection switch, DC / DC converter, power management unit, wireless network module, Bluetooth communication module, microphone and sound unit; The input terminal of the selector switch is coupled to two power supplies. One power source comes from the power input interface and is processed by the power supply protocol matching module; the other power source comes directly from the power input interface. The output of the selection switch supplies the selected power supply to the input of the DC / DC converter; The output terminal of the DC / DC converter is connected to the power management unit, and is used to provide the converted voltage to the power management unit. The power management unit is used to supply power to the main control unit, audio processing circuit, wireless network module and Bluetooth communication module; The main control unit is electrically connected to the audio processing circuit, the wireless network module, the Bluetooth communication module, and the storage unit, respectively. The input terminal of the audio processing circuit is connected to the microphone to receive audio signals, and the output terminal of the audio processing circuit is connected to the sound-producing unit to drive it to produce sound.

[0021] This invention solves the problems of single power supply method and redundant internal circuitry in smart voice speakers by constructing a hybrid power supply architecture that supports multiple inputs at the front end and uses a shared processing link at the back end. The front-end power protocol matching module and selection switch work together to identify and select the input power source, directing a single path to a shared post-processing circuit consisting of a DC / DC converter and a power management unit. This provides stable power to modules with varying power consumption, such as the main control unit, audio amplifier, and microphone array within the speaker. Compared to non-hybrid power supply speakers that rely on a single dedicated adapter, this invention eliminates dependence on a specific power source, allowing the speaker to directly utilize Ethernet power networks commonly found in commercial environments or universal USB-PD fast charging power supplies, expanding the product's deployment scenarios and ease of use. Simultaneously, this series-based structure, from multiple inputs to single-channel integrated processing, fundamentally replaces the redundant design of multiple independent circuits in parallel, achieving circuit simplification and cost control.

[0022] More specifically, the power input interface includes: A network port supporting Power over Ethernet as the first output interface; The power port, which serves as the second output interface, is physically selected from at least one of the interface sets consisting of a universal serial bus interface, a Type-C interface, a DC power connector, and a pluggable terminal block.

[0023] In practical implementation, the power input interfaces are configured in parallel, including a network port supporting Power over Ethernet (PoE) and a power port with a physical form selected from a combination of Type-C interfaces or DC power connectors. This hardware configuration enables the smart speaker to connect to two different power supply systems: users can connect for data transmission and device power in commercial or office environments with only a single network cable via the network port; alternatively, they can use a conventional adapter or USB-PD fast charging power supply via the more universal Type-C or DC interfaces.

[0024] More specifically, this also includes the front-end protection unit; The pre-stage protection unit is connected in series between the first output interface and the power supply protocol matching module, and in series between the second output interface and the selection switch.

[0025] In one embodiment, the power supply protocol matching module includes a full-bridge rectifier circuit and a PoE PD+. The electrical signal output from the PoE switching port is input to the full-bridge rectifier circuit after passing through the pre-stage protection unit. After unifying the voltage polarity of the PoE switching port, the full-bridge rectifier circuit transmits the electrical signal to the selection switch through the PoE PD+.

[0026] A pre-stage protection unit is connected in series between both power inputs and the subsequent circuitry, and a dedicated power protocol matching module is designed for the Power over Ethernet (PoE) path. This module consists of a full-bridge rectifier circuit and a PoE PD+ controller. After initial protection by the pre-stage protection unit, the electrical signal from the PoE switching port first enters the full-bridge rectifier circuit, which unifies the voltage polarity of the input signal to eliminate polarity uncertainty caused by different PoE power supply wiring sequences. Subsequently, the polarity-unified electrical signal is sent to the PoE PD+ controller, which is responsible for completing the standardized handshake protocol with the PoE power supply equipment, declaring and negotiating power levels, and only transmitting stable DC power to the selection switch after obtaining power permission. By introducing the pre-stage protection unit, the overall power supply system's tolerance to external surges, static electricity, and other electrical stresses is significantly enhanced, improving product reliability and safety. Simultaneously, the combination of the full-bridge rectifier and the PoE PD+ controller achieves seamless compatibility and intelligent management of PoE standard power supply, ensuring compliance and stability of the power supply.

[0027] More specifically, the circuit structure of the pre-stage protection unit includes a transient voltage suppression diode and a metal oxide varistor, both of which are connected across the network connection line.

[0028] The front-end protection unit constructs a two-stage collaborative protection circuit by connecting a transient voltage suppressor diode (TVS) and a metal oxide varistor (MOV) in parallel across the network connection line. When transient overvoltages such as electrostatic discharge or lightning surges occur in the line, the TVS diode is the first to break down and conduct, instantly clamping the voltage below the safety threshold of the subsequent circuit to protect against voltage spikes. The MOV, with its larger current capacity but slightly slower response, then immediately activates, dissipating the main energy of the surge. This scheme, combining the speed advantage of TVS with the energy absorption advantage of MOV, achieves wide-spectrum, high-efficiency protection against different types of transient interference.

[0029] More specifically, it also includes an infrared module, which is electrically connected to the main control unit and is used to detect whether the user has entered the effective controllable range of the audio control system.

[0030] like Figure 2 As shown, more specifically, it also includes a gesture recognition module, which comprises an acquisition unit and a recognition unit. The acquisition unit is used to receive gesture signals; The recognition unit is electrically connected to the acquisition unit and the main control unit, and is used to detect the gesture signal received by the acquisition unit.

[0031] More specifically, it also includes a voice recognition module, which is electrically connected to the microphone and the main control unit, and is used to recognize sound signals.

[0032] By electrically connecting the infrared module, gesture recognition module, and voice recognition module to the main control unit, a multimodal human-computer interaction system was constructed. This system integrates three independent input dimensions: the infrared module senses the user's distance to achieve automatic wake-up or standby; the gesture recognition module provides contactless visual control in scenarios where speaking is inconvenient or silent operation is required; and the voice recognition module processes audio signals from the microphone to execute core voice commands. Compared to relying solely on single voice interaction, this solution significantly enriches the product's interaction dimensions and scenario adaptability.

[0033] More specifically, it also includes a smart home wireless module, which is a CDZ-C2MG2-2100-00 smart home wireless module. The CDZ-C2MG2-2100-00 smart home wireless module is connected to the wireless network module based on the GPIO interface.

[0034] By integrating a dedicated smart home wireless module and connecting it to the system's wireless network module using a universal input / output interface, the smart speaker's functionality is expanded from a network audio terminal to a multi-protocol smart home hub gateway. The communication tasks handling specific smart home protocols are separated from the main wireless network module and executed independently by dedicated hardware. Compared to conventional techniques that rely on software compatibility with multiple protocols or reuse of existing wireless modules on the main control chip, this avoids resource conflicts and performance degradation caused by protocol stack reuse. Thus, without affecting core audio stream processing and network connection stability, it provides users with direct and reliable cross-protocol smart device control capabilities.

[0035] More specifically, the storage unit uses H5TC4GEFR-RDA512M double-rate synchronous dynamic random access memory.

[0036] More specifically, the DC / DC converter includes at least one of a linear regulator, a switching regulator, and a modular power supply.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A hybrid power supply intelligent voice speaker, characterized in that, Includes the following: Main control unit, storage unit, power input interface, power supply protocol matching module, selection switch, DC / DC converter, power management unit, wireless network module, Bluetooth communication module, microphone and sound unit; The input terminal of the selector switch is coupled to two power supplies. One power source comes from the power input interface and is processed by the power supply protocol matching module; the other power source comes directly from the power input interface. The output of the selection switch supplies the selected power supply to the input of the DC / DC converter; The output terminal of the DC / DC converter is electrically connected to the power management unit, and is used to provide the converted voltage to the power management unit; The power management unit is used to supply power to the main control unit, audio processing circuit, wireless network module and Bluetooth communication module; The main control unit is electrically connected to the audio processing circuit, the wireless network module, the Bluetooth communication module, and the storage unit, respectively. The input terminal of the audio processing circuit is connected to the microphone to receive audio signals, and the output terminal of the audio processing circuit is connected to the sound-producing unit to drive it to produce sound.

2. The hybrid power supply intelligent voice speaker according to claim 1, characterized in that, The power input interface includes: A network port supporting Power over Ethernet as the first output interface; The power port, which serves as the second output interface, is physically selected from at least one of the interface sets consisting of a universal serial bus interface, a Type-C interface, a DC power connector, and a pluggable terminal block.

3. The hybrid power supply intelligent voice speaker according to claim 2, characterized in that, It also includes a front-end protection unit; The pre-stage protection unit is connected in series between the first output interface and the power supply protocol matching module, and in series between the second output interface and the selection switch.

4. The hybrid power supply intelligent voice speaker according to claim 3, characterized in that, The circuit structure of the pre-stage protection unit includes a transient voltage suppression diode and a metal oxide varistor, both of which are connected across the network connection line.

5. The hybrid power supply intelligent voice speaker according to claim 1, characterized in that, It also includes an infrared module, which is electrically connected to the main control unit and is used to detect whether the user has entered the effective controllable range of the audio control system.

6. The hybrid power supply intelligent voice speaker according to claim 5, characterized in that, It also includes a gesture recognition module, which comprises an acquisition unit and a recognition unit. The acquisition unit is used to receive gesture signals; The recognition unit is electrically connected to the acquisition unit and the main control unit, and is used to detect the gesture signal received by the acquisition unit.

7. The hybrid power supply intelligent voice speaker according to claim 6, characterized in that, It also includes a voice recognition module, which is electrically connected to the microphone and the main control unit, and is used to recognize sound signals.

8. The hybrid power supply intelligent voice speaker according to claim 1, characterized in that, It also includes a smart home wireless module, which is a CDZ-C2MG2-2100-00 smart home wireless module. The CDZ-C2MG2-2100-00 smart home wireless module is connected to the wireless network module based on the GPIO interface.

9. The hybrid power supply intelligent voice speaker according to claim 1, characterized in that, The storage unit uses H5TC4GEFR-RDA512M double-rate synchronous dynamic random access memory.

10. The hybrid power supply intelligent voice speaker according to claim 1, characterized in that, The DC / DC converter includes at least one of a linear regulator, a switching regulator, and a modular power supply.

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