Voice-controlled CD player for use with smart home systems

Abstract

Voice-controlled CD playback device for cooperation with intelligent home systems, characterized by: an upper housing (1), wherein a rear section of the upper housing (1) is connected to a lower housing (2), a front section of the upper housing (1) forms a disc operating chamber (3), and the outside of the disc operating chamber (3) is connected to a removable cover plate (4), a receiving chamber (5) formed inside the upper housing (1) and the lower housing (2) in which a control component (6) and a CD laser head (7) are arranged; wherein the control component (6) comprises a control chip (8) and a speech recognition module (9); the speech recognition module (9) and the control chip (8) are electrically connected via serial interface connections, the speech recognition module (9) being designed to convert user input into device control commands for executing the CD playback functions by means of preset speech recognition algorithms; the CD laser head (7) and the control chip (8) are electrically connected, the CD laser head (7) is exposed in the disc operating chamber (3) and serves for installing and reading CD discs, wherein the control chip (8) comprises a decoder chip (11), a memory chip (12) and a Bluetooth mesh network (13); the memory chip (12) and the decoder chip (11) are electrically connected, the memory chip (12) being used to store operating data of the CD playback device, a voice command feature library and a control protocol library for smart home devices; the Bluetooth mesh network (13) and the decoder chip (11) are connected via serial interface connections, the Bluetooth mesh network (13) being used to use the CD playback device as a Bluetooth gateway and to establish communication links with smart home devices for transmitting control commands for smart home devices, wherein the control chip (8) is designed to assign appropriate control protocols for smart home devices according to the control commands issued by the speech recognition module (9), and the control chip (8) is also designed to send control signals to target smart home devices via the Bluetooth mesh network (13).

Description

Technical area

[0001] The present utility model relates to a voice-controlled CD playback device for cooperation with intelligent home systems and belongs to the technical field of playback device technology. Background technology

[0002] CD players, also known as laser disc players or laser players, are microcomputer-controlled, intelligent, high-fidelity stereo audio devices. They utilize advanced laser technology, digital technology, computer technology, and various new components, and are characterized by high storage density, long playback time, ease of use, and fast track selection. They can reproduce recorded content faithfully with clear layering and a sense of presence.

[0003] Conventional CD players, however, suffer from limited functionality. Their core functions are mostly restricted to audio playback. Operation relies on manual handling, human-machine interaction is inflexible, and the user experience is lacking. With the rapid development of smart home technology, the coordinated networking of various smart devices in the home environment has become a trend. However, conventional CD players lack IoT capabilities and cannot be connected to smart home systems. They cannot act as control terminals for other smart home products, nor can they be conveniently controlled via voice commands. Therefore, they do not meet the demands of modern users for smart living scenarios. Content of the utility model

[0004] Therefore, the present utility model provides a voice-controlled CD player for use with smart home systems. It solves the problems of conventional CD players regarding relatively limited functions, inadequate human-machine interaction, difficult voice control, and challenging integration with smart home products.

[0005] To achieve the aforementioned purpose, the present utility model provides the following technical solution: A voice-controlled CD playback device for use with intelligent home systems, comprising: an upper housing, wherein the rear section of the upper housing is connected to a lower housing, the front section of the upper housing forms a disc operating chamber, and the outside of the disc operating chamber is connected to a removable cover plate; wherein the interior of the upper and lower housings forms a receiving chamber in which a control component and a CD laser head are arranged; the control component comprises a control chip and a speech recognition module; the speech recognition module and the control chip are connected via serial interface connections, the speech recognition module serving to convert user input into device control commands for executing the CD playback functions by means of preset speech recognition algorithms; the CD laser head and the control chip are electrically connected, the CD laser head is exposed in the disc operating chamber and serves for installing and reading CD discs; wherein the control chip comprises a decoder chip, a memory chip and a Bluetooth mesh network; the memory chip and the decoder chip are electrically connected, the memory chip being used to store operating data of the CD playback device, a voice command feature library and a control protocol library for smart home devices; the Bluetooth mesh network and the decoder chip are connected via serial interface connections, the Bluetooth mesh network being used to use the CD playback device as a Bluetooth gateway and to establish communication links with smart home devices for transmitting control commands to smart home devices; the control chip serves to assign appropriate control protocols for smart home devices according to the control commands issued by the speech recognition module, and the control chip also serves to send control signals to target smart home devices via the Bluetooth mesh network.

[0006] As the preferred solution for voice-controlled CD players to work with smart home systems, it also includes RGB ambient lighting. The RGB ambient lighting and the control chip are electrically connected. The RGB ambient lighting serves to present appropriate light effects according to the operating mode of the CD player and changes in the audio signal, in order to indicate the operating status and create an audio atmosphere.

[0007] As the preferred solution for voice-controlled CD players to work with smart home systems, it also includes an FM transmitter module. The FM transmitter module and the control chip are electrically connected. The FM transmitter module serves to receive and transmit frequency-modulated broadcast signals to enable the CD player's FM radio function.

[0008] As the preferred solution for the voice-controlled CD player to work with smart home systems, the control chip also includes a battery protection chip and a charging management chip. A battery module is also located inside the recording chamber. The battery module and the control chip are electrically connected and provide power to the CD player.

[0009] The battery module and the battery protection chip are electrically connected. The battery protection chip and the decoder chip are also electrically connected. The battery protection chip serves to protect the battery module from overvoltage, undervoltage, overcurrent, and short circuits.

[0010] The battery module and the charge management chip are electrically connected. The charge management chip and the decoder chip are also electrically connected. The charge management chip monitors the charging current, voltage, and temperature of the battery module.

[0011] As the preferred solution for voice-controlled CD playback devices to work with smart home systems, the control chip also includes a mechanical drive chip. The CD laser head and the mechanical drive chip are electrically connected. The mechanical drive chip and the decoder chip are also electrically connected. The mechanical drive chip serves to drive the CD laser head.

[0012] As the preferred solution for voice-controlled CD players to work with smart home systems, the control chip also includes an audio power amplifier chip. The audio power amplifier chip and the decoder chip are electrically connected. The audio power amplifier chip serves to amplify the audio signals output by the CD player.

[0013] As the preferred solution for voice-controlled CD players to work with smart home systems, the control chip also includes an LCD driver chip and an infrared or wireless remote control chip. The LCD driver chip and the decoder chip are electrically connected. The LCD driver chip controls the touch / LCD display configured for the CD player. The infrared or wireless remote control chip and the decoder chip are also electrically connected. The infrared or wireless remote control chip controls the infrared remote control configured for the CD player.

[0014] As the preferred solution for a voice-controlled CD player to work with smart home systems, it also includes a keypad module and an interface component. The keypad module features physical buttons exposed on the top of the upper housing. The keypad module and the control chip are electrically connected. The keypad module is used to control the CD player via physical buttons.

[0015] The interface component and the control chip are electrically connected. The interface component includes a headphone jack, a USB port, an SD card slot, and a Type-C charging port.

[0016] As the preferred solution for the voice-controlled CD player to work with smart home systems, a table mount and a wall mount are arranged on the back of the lower housing.

[0017] As the preferred solution for voice-controlled CD players to work with smart home systems, it also includes a camera. The camera and the control chip are connected via a Wi-Fi module. The camera is used to capture environmental information around the CD player.

[0018] The Wi-Fi module also serves to retrieve AI big model data from remote servers in real time in order to conduct real-time interaction dialogues between user and device.

[0019] The present utility model has the following advantages: First, the implementation of the speech recognition module allows user input to be converted into device control commands using preset speech recognition algorithms. This enables voice control of the CD player without manual operation. This significantly improves usability and interaction efficiency, optimizing the user experience.

[0020] Secondly, the Bluetooth mesh network integrated into the control chip allows the CD player to function as a Bluetooth gateway, establishing communication links with smart home devices. Combined with the control protocol library for smart home devices pre-stored on the memory chip, corresponding control protocols can be assigned to voice commands, and control signals can be sent to target devices. This integrates the CD player into smart home systems and enables multi-device collaboration, meeting the requirements of modern smart living scenarios.

[0021] Thirdly, it features RGB ambient lighting that can display appropriate lighting effects according to the device's operating mode and audio signal changes, serving both as a status indicator and for creating atmosphere. It integrates an FM transmitter module to support FM radio functionality and expands audio sources. It includes a button module and comprehensive interface components, addressing both physical control and external device connection requirements, thus enhancing the device's practicality and compatibility.

[0022] Fourth, the control chip includes a battery protection chip and a charging management chip, which protect the battery module from overvoltage, undervoltage, overcurrent, and short circuits, and can monitor current, voltage, and temperature during the charging process. This ensures safe battery use and extends the device's lifespan.

[0023] Fifth, a table mount and a wall mount are attached to the back of the lower housing, allowing the device to be placed on a table or hung on the wall depending on usage requirements. This accommodates various home layouts and improves the device's adaptability to different environments. The camera connects to the control chip via the Wi-Fi module and can capture environmental information around the device. This provides users with environmental monitoring capabilities and further expands the device's application scenarios.

[0024] It is evident that the present utility model, based on retaining the core CD playback functions, achieves functional diversification and intelligence by combining voice control with intelligent home networking functions. It solves the problems of conventional CD players regarding limited functions, lack of interactivity, and difficult integration into intelligent home systems, and possesses considerable practical value. Figures

[0025] To more clearly explain the implementation methods of the present utility model or the technical solutions in the prior art, the drawings used in the implementation methods or the description of the prior art are briefly presented below. Obviously, the following drawings are only examples. Those skilled in the art can derive further implementation drawings from the provided drawings without any creative effort.

[0026] The structures, proportions, sizes, etc., depicted in this description serve only to supplement the content disclosed in the description so that those skilled in the art can understand and interpret it, and are not intended to limit the implementable conditions of this utility model and therefore have no technical significance. Any structural modification, change in proportions, or adjustment of size should, as long as it does not impair the effect and purposes achievable by this utility model, still fall within the scope that can be covered by the technical content disclosed in this utility model. Fig. Figure 1 is a stereoscopic structural representation of the AI-voice-controlled multifunctional CD playback device provided in the embodiments of the present utility model. Fig. Figure 2 is an internal structural representation of the AI-voice-controlled multifunctional CD playback device provided in the embodiments of the present utility model. Fig. Figure 3 is an exploded view of the AI ​​voice-controlled multifunctional CD playback device provided in the embodiments of the present utility model. Fig. Figure 4 is a hardware architecture representation of the AI ​​voice-controlled multifunctional CD playback device provided in the embodiments of the present utility model.

[0027] In the figures: 1, upper housing; 2, lower housing; 3, disc operating compartment; 4, removable cover plate; 5, recording compartment; 6, control component; 7, CD laser head; 8, control chip; 9, speech recognition module; 10, battery module; 11, decoder chip; 12, memory chip; 13, Bluetooth mesh network; 14, RGB ambient lighting; 15, interface component; 16, FM transmitter module; 17, battery protection chip; 18, charging management chip; 19, mechanical drive chip; 20, audio power amplifier chip; 21, LCD driver chip; 22, infrared or wireless remote control chip; 23, keypad module; 24, table stand; 25, wall mount bracket; 26, camera. Specific embodiments

[0028] The following specific implementation examples illustrate the implementation methods of the present utility model. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the information disclosed in this description. Obviously, the described embodiments are a subset of the embodiments of the present utility model, not all embodiments. Based on the embodiments in this utility model, all other embodiments obtained by those skilled in the art without inventive work are within the scope of protection of the present utility model.

[0029] It needs to be explained: The hardware used in the following exemplary embodiments includes, but is not limited to, control components (control chip, speech recognition module, model: AI chip based on the Jieli AC7911B8 / BA series design, etc.), WLAN module model: WLAN+BT integrated dual-mode wireless module based on the ESP32 series chip or AP6255 chip, CD laser head (M93BG6 and other models), battery module (18650 lithium / polymer battery), RGB ambient lighting, FM transmitter module, interface component, keypad module, camera, as well as decoder chips integrated into the control chip (Silan Micro SC6137D / SC6135B / SC6136A / SC9659P or Sunplus Lingyang sphe8104), memory chip (M12L616416A, T24C02A), Bluetooth mesh network, battery protection chip (DW01), and charging management chip. (TP4056), mechanical drive chip (YT5901), audio power amplifier chip, LCD driver chip (HT1621B), infrared or wireless remote control chip, etc., all of which are commercially available mature products.

[0030] This hardware is procured through public market sourcing channels (such as electronic component supplier platforms, hardware accessory markets, etc.). Its functional characteristics, electrical interfaces, physical specifications, etc., follow industry standards or product manual definitions. This utility model only involves the reasonable selection, integration, and structural / circuit connection design of the hardware and does not constitute an innovative transformation of the hardware itself.

[0031] The algorithms used in the following embodiments during device operation include, but are not limited to, speech collection preprocessing algorithms of the speech recognition module (such as noise reduction, framing, windowing), feature extraction algorithms (Mel-Frequency-Cepstral Coefficients MFCC), instruction matching algorithms (Dynamic Time Warping DTW); instruction analysis algorithms of the control chip, control protocol matching algorithms for smart home devices; CD audio decoding algorithms (according to the Red Book standard); image recognition algorithms (OpenCV-based motion detection, light detection); PWM control algorithms for RGB ambient lighting (implementation of light color, brightness, blink mode adjustment), etc., all of which are existing public algorithms.

[0032] The algorithms mentioned above have long been used in fields such as speech recognition, audio processing, smart home control, image processing, etc., and have a mature theoretical foundation and practical verification. The present utility model selects and applies these algorithms sensibly according to the device's functional requirements. Through software programming (such as embedded program development), the algorithms are deployed on control chips and related modules to achieve the coordinated execution of hardware and algorithms without requiring any original invention or improvement of the algorithms themselves.

[0033] With reference to Fig. 1, Fig. 2, Fig. 3 and Fig.Figure 4 presents an embodiment of the present utility model as a voice-controlled CD playback device for use with smart home systems. It comprises an upper housing 1, the rear section of which is connected to a lower housing 2. The front section of the upper housing 1 forms a disc operating chamber 3, and the exterior of the disc operating chamber 3 is connected to a removable cover plate 4. This structural design facilitates the insertion and replacement of CD discs. The removable cover plate 4 protects the precision components inside the disc operating chamber 3 when the device is not in use, preventing the ingress of dust and other foreign matter that could impair the device's performance. The disc operating chamber 3 provides space for the rotation of CD discs and the reading of data by the laser head, its size and structure being adapted to common CD disc specifications.

[0034] The interior of the upper housing 1 and the lower housing 2 form a receiving chamber 5, within which a control component 6 and a CD laser head 7 (M93BG6 CD laser head) are arranged. The control component 6 comprises a control chip 8 and a speech recognition module 9. Using a common embedded speech recognition module 9 as an example, it works as follows: User input is collected via an integrated microphone. First, the collected speech signal is pre-processed, for example, with noise reduction and interference suppression, to improve the quality of the speech signal. Then, feature extraction methods such as Mel-frequency-cepstral coefficients (MFCC) are used to convert the speech signal into feature vectors that computers can process. Finally, an acoustic model is trained based on large amounts of speech data.When users give voice commands, the extracted feature parameters are entered into the acoustic model to obtain candidate texts, which are then decoded using a speech model to obtain the final recognition result. This recognition result is transmitted via serial interface connections to the control chip 8, which executes corresponding CD playback device functions, such as play, pause, fast forward, etc., according to preset command sets and logic. The CD laser head 7 (M93BG6 CD laser head) and the control chip 8 are electrically connected. The CD laser head 7 is exposed in the disc operating chamber 3 and is used for installing and reading CD discs. Its operating principle is to send laser beams onto the CD disc surface. The depressions and flat areas on the disc surface produce different reflections of the laser.The photodetector in the CD laser head 7 receives the reflected light and converts it into electrical signals, which, after amplification, decoding and other processing, are restored to audio signals by the control chip 8.

[0035] The control chip 8 comprises a decoder chip 11 (SC6137D decoder chip), a memory chip 12 (M12L616416A memory chip or T24C02A EEPROM memory chip), and a Bluetooth mesh network 13. The memory chip 12 and the decoder chip 11 are electrically connected. The memory chip 12 stores operating data for the CD player, a voice command feature library, and a control protocol library for smart home devices. The memory chip 12 is connected to the decoder chip 11 via specific memory interfaces (such as an SPI interface). When the device is running, the decoder chip 11 can quickly read operating data from the memory chip 12, such as playback records, device settings, etc. During voice recognition, real-time voice command features are compared with data in the voice command feature library and recognized.When working with smart home devices, control commands received by the Bluetooth mesh network 13 are searched for in the smart home device control protocol library on the memory chip 12 via the decoder chip 11 in order to assign the corresponding control protocols. The Bluetooth mesh network 13 and the decoder chip 11 are connected via serial interface connections. The Bluetooth mesh network 13 serves to use the CD player as a Bluetooth gateway and to establish communication links with smart home devices for transmitting control commands. The Bluetooth mesh network 13 establishes connections with smart home device nodes in the mesh network and receives network topology structure and device information. Using the broadcast and routing functions of the mesh network, it communicates and exchanges data with smart home device nodes.For example, if users want to control smart lighting devices using voice commands, the speech recognition module 9 transmits the command to the control chip 8. The control chip 8 sends the control command via the Bluetooth mesh network 13 in a specific mesh protocol format to the mesh network in which the smart lighting device is located. The smart lighting device performs the corresponding operations upon receiving the command.

[0036] The control chip 8 serves to assign appropriate control protocols for smart home devices according to the control commands issued by the speech recognition module 9. The control chip 8 also serves to send control signals to target smart home devices via the Bluetooth mesh network 13. After receiving the control commands issued by the speech recognition module 9, the control chip 8 first analyzes the command content and then searches the control protocol library for smart home devices on the memory chip 12 for suitable protocols. Once the appropriate protocol is found, the control signals are packaged according to the format supported by the Bluetooth mesh network 13 and sent via the Bluetooth mesh network 13 to the mesh network in which the target smart home device is located. This enables remote control of smart home devices.

[0037] In this embodiment, it also includes an RGB ambient light 14. The RGB ambient light 14 and the control chip 8 are electrically connected. The RGB ambient light 14 serves to present corresponding light effects according to the operating mode of the CD playback device and changes in the audio signal, in order to indicate the operating status and create an audio atmosphere.

[0038] Specifically, the brightness control of the RGB ambient lighting 14 is primarily achieved by controlling the current in the light strip. That is, the control chip 8 outputs PWM (pulse-width modulation) signals via I / O ports to control the MOS transistors, with different duty cycles corresponding to different LED brightness levels. For color control, several I / O ports of the control chip 8 each control MOS transistors to control the R (red), G (green), and B (blue) LED chips. If only R, G, or B is activated, monochromatic red, monochromatic green, and monochromatic blue can be achieved. Simultaneous activation of R, G, and B causes the LEDs to emit white light. By applying different duty cycles of PWM signals to any two of R, G, and B, more colors can be achieved. By changing the activation sequence of R, G, and B, various color-changing effects, such as LED blinking and gradients, can also be achieved.For example, when playing music, the control chip 8 can adjust the color and flashing frequency of the RGB ambient lighting 14 according to the speed of the music's rhythm and the highs and lows of the melody to create a suitable atmosphere. When the device is in different operating modes such as pause, play, or fast forward, different colors or brightness levels of the light can also be displayed to indicate the status.

[0039] In this embodiment, it also includes an FM transmitter module 16. The FM transmitter module 16 and the control chip 8 are electrically connected. The FM transmitter module 16 serves to receive and transmit frequency-modulated radio signals in order to implement the FM radio function of the CD player.

[0040] Specifically, it receives FM broadcast signals in the room via an antenna and processes them using internal high-frequency circuitry with signal amplification, frequency conversion, etc. It converts high-frequency FM signals into intermediate frequency signals suitable for processing by the control chip 8, and then demodulates these signals to restore audio signals for playback. Simultaneously, this module can also modulate and transmit local audio signals from the device (such as CD playback audio) via the antenna, allowing users with car radios and other FM receivers to receive and play these audio signals in specific frequency bands.

[0041] In this embodiment, the control chip 8 also includes a battery protection chip 17 (DW01 battery protection chip) and a charging management chip 18 (TP4056 charging management chip). A battery module 10 (18650 lithium / polymer battery) is also arranged inside the recording chamber 5. The battery module 10 and the control chip 8 are electrically connected and serve to power the CD playback device.

[0042] Specifically, the battery protection chip 17 monitors parameters such as the voltage and current of the battery module 10. If overvoltage, undervoltage, overcurrent, or a short circuit is detected, it quickly interrupts the circuit, preventing battery damage, extending battery life, and ensuring the safety of both the device and the user. The charging management chip 18 comprehensively monitors and manages the charging process of the battery module 10, including monitoring charging current, voltage, and temperature. During the initial charging phase, it charges the battery with a constant current. As the battery voltage approaches full charge, it switches to constant voltage charging to prevent overcharging. Simultaneously, it monitors the battery temperature in real time. If the temperature becomes too high, it adjusts the charging current or pauses charging to prevent battery damage from overheating.

[0043] In this embodiment, the control chip 8 also includes a mechanical drive chip 19 (YT5901 laser head mechanical drive chip). The CD laser head 7 (M93BG6 CD laser head) and the mechanical drive chip 19 are electrically connected. The mechanical drive chip 19 and the decoder chip 11 (SC6137D decoder chip) are also electrically connected. The mechanical drive chip 19 serves to drive the CD laser head 7.

[0044] Specifically, the mechanical drive chip 19 generates the appropriate voltage and current according to the control signals sent by the decoder chip 11 and drives the motors in the CD laser head 7. It performs disc rotation, radial movement of the laser head (tracking), and axial movement (focusing), etc., and ensures that the CD laser head 7 can accurately read data on the disc. For example, when the disc needs to be played, the mechanical drive chip 19 controls the motor to rotate the disc at a constant speed while simultaneously moving the laser head to the correct starting position to begin reading data.

[0045] In this embodiment, the control chip 8 also includes an audio power amplifier chip 20. The audio power amplifier chip 20 and the decoder chip 11 (SC6137D decoder chip) are electrically connected. The audio power amplifier chip 20 serves to amplify the audio signals output by the CD playback device.

[0046] Specifically, the audio signals output by the decoder chip 11 have relatively low power and cannot directly drive larger power speakers or cause audio systems to produce sound at a sufficient volume. The role of the audio power amplifier chip 20 is to amplify the audio signals output by the decoder chip 11 and increase the signal drive capability so that the audio signals can drive speakers (such as 4Ω 3W internal magnetic speakers) to produce clear, loud sound and improve audio playback effects.

[0047] In this embodiment, the control chip 8 also includes an LCD driver chip 21 (HT1621B Hetai LCD driver chip) and an infrared or wireless remote control chip 22. The LCD driver chip 21 and the decoder chip 11 (SC6137D decoder chip) are electrically connected. The LCD driver chip 21 is used to control the touch / LCD display configured for the CD player. The infrared or wireless remote control chip 22 and the decoder chip 11 (SC6137D decoder chip) are electrically connected. The infrared or wireless remote control chip 22 is used to control the infrared remote control (433 MHz / infrared remote control) configured for the CD player.

[0048] Specifically, the LCD driver chip 21 communicates with the decoder chip 11 and receives image data and control signals from the decoder chip 11. It converts these signals into control signals suitable for the LCD liquid crystal display and controls the brightness and color of each pixel on the liquid crystal screen. In this way, it displays device status information (such as playback title, playback time, volume, etc.) as well as user interfaces (if touch controls are present). The infrared or wireless remote control chip 22 receives infrared signals from the infrared remote control and converts them into electrical signals. It performs decoding processing and recognizes the button commands pressed by the user on the remote control. It then transmits these commands to the decoder chip 11, which executes corresponding device control operations, such as play, pause, track change, etc. This enables remote control of the CD player.

[0049] Furthermore, the infrared remote control can also have its own voice recognition functions and transmit via infrared / 433MHz chips. Specifically, it receives voice input signals via MIC electret microphone solutions into the US513 offline voice recognition chip and compares signals with commands stored in the GD25Q32ES IG non-volatile flash memory chip. Recognition results can be wirelessly transmitted to the device via the XL4456 315 / 433MHz transmitter chip.

[0050] In this embodiment, it also includes a keypad module 23 and an interface component 15. The keypad module 23 has physical keys that are exposed on the top of the upper housing 1. The keypad module 23 and the control chip 8 are electrically connected. The keypad module 23 is used to control the CD playback device via physical keys.

[0051] Specifically, the key module 23 consists of several microswitches or touch-sensitive buttons. Each button corresponds to different functions, such as play, pause, previous track, next track, volume control, etc. When a user presses a button, the button circuit becomes conductive and generates an electrical signal that is transmitted to the control chip 8. The control chip performs corresponding operations according to preset button function logic. The interface component 15 and the control chip 8 are electrically connected. The interface component 15 includes a headphone interface, a USB interface, an SD card interface, and a Type-C charging interface. The headphone interface (like the common 3.5 mm headphone jack) is used to connect headphones to transmit the audio signals output by the device to headphones, allowing users to listen to music without disturbing others.The USB and SD card interfaces allow users to connect external storage devices. The control chip 8 can read audio files from USB storage devices or music data from SD cards, expanding the device's audio playback sources so that music can be played even without CDs. The Type-C charging interface is used to connect external power adapters to charge the device's internal battery module 10. This interface can also be used for data transfer (if supported by the control chip 8), enabling data exchange between the device and computers and other devices.

[0052] In this embodiment, a table stand 24 and a wall mount 25 are attached to the rear of the lower housing 2. The table stand 24 can be stored by means of a folding or rotating mechanism on the rear of the lower housing 2. When the device needs to be used on a table, the table stand 24 is unfolded so that the device can be placed stably on the table. The angle and structure of the stand are designed according to ergonomic principles to facilitate the operation of the device and the viewing of the device display (if present). The wall mount 25 can also employ a folding or concealed design. If users wish to mount the device on the wall to save space, the wall mount 25 is unfolded and attached to the wall with anchors and other accessories.The device is then installed on the wall mounting bracket 25 to meet the usage requirements of different users in different scenarios.

[0053] In this embodiment, it also includes a camera 26. The camera 26 and the control chip 8 are connected via a Wi-Fi module. The camera 26 is used to capture environmental information around the CD playback device. The Wi-Fi module is also used to retrieve large-scale AI model data from remote servers in real time to conduct real-time interaction dialogues between the user and the device.

[0054] Specifically, the camera 26 captures image information of the device's surroundings through its lens and converts light signals into electrical signals. It performs analog-to-digital conversion and image data processing, then wirelessly transmits the processed image data via the Wi-Fi module to the control chip 8. The control chip 8 can analyze and process this image data, for example, to implement security monitoring functions. Upon detecting abnormal movements, it sends warning information to users' smartphones and other smart devices via the Bluetooth mesh network 13 or other network connections. It is also used for intelligent scene networking, such as automatically adjusting the brightness of the device display or the brightness of the RGB ambient lighting 14 according to changes in ambient light, etc.

[0055] In one possible implementation, user voice commands are converted into corresponding machine-readable control commands via the speech recognition module 9, and functions of the CD player are executed via the control chip 8. Specifically, incoming human voices are preprocessed by a VAD algorithm, and features are extracted to obtain feature vector parameters of the voice commands. These feature vector parameters are compared with feature vectors of predefined action commands in the speech reference model library using similarity measurement comparison. The highest-scoring input feature vector is used as the recognition result output, and other functions of the CD player are evaluated and controlled via the control chip 8.

[0056] The VAD algorithm can sample original continuous analog signals and convert them into discrete-time data, performing uniform sampling. The basic principle is to use large quantization intervals for large signals and small quantization intervals for small signals, with the already converted digital signals being binary-encoded. The speech reference model library, which includes acoustic models, speech models, and dictionaries, is itself part of the existing technology and will therefore not be discussed further here.

[0057] In one possible implementation, the CD player and specified smart home products are integrated into the same router network via a Bluetooth gateway. Control commands are uploaded from the CD player to remote servers. These remote servers then send control commands to the specified smart home products.

[0058] Specifically, human voices are converted into corresponding machine-readable commands via the speech recognition module 9 and controlled via the control chip 8. The CD player can be used as a Bluetooth gateway. The CD player and other smart home products are located on the same router network. Voice commands control the CD player. The CD player uploads control commands to remote servers. These remote servers then send control commands to other smart home products.

[0059] In one possible implementation, voice control commands are uploaded from mobile devices to remote servers. These remote servers then send the voice control commands to the CD player to execute its functions.

[0060] Specifically, mobile devices such as smartphone apps can be used to remotely control the CD player and execute player functions. If the CD player is already connected to remote servers, the smartphone app uploads the corresponding control commands to these servers. These commands are then sent from the remote servers to the CD player to execute the player functions.

[0061] In one possible implementation, audio signals are converted into electrical signals via mobile devices and uploaded to remote servers. These electrical signals are then sent from the remote servers to the CD player. The CD player amplifies the electrical signals and outputs them as sound.

[0062] Specifically, the microphone effect can be adjusted via the smartphone app function of mobile devices. This means that audio signals are transmitted to the smartphone and can be quickly and completely played back via the CD player. Mobile devices convert audio signals into electrical signals and upload these signals to remote servers. The remote servers then send these electrical signals to the CD player. The CD player amplifies the signals and outputs the sound through speakers.

[0063] In one possible implementation, data from CD players and smart home products is stored directly on remote servers. When CD players and other smart home products are connected to these remote servers, all status and action data from the CD player and other smart home products are stored directly on these servers. This allows users to view all data from the CD player and other smart home products via smartphone apps on mobile devices connected to these remote servers. In other words, machine data stored on remote servers can be accessed and viewed directly via smartphone apps on mobile devices.

[0064] In one possible implementation, the alarm function could be set via the CD player, and the CD player could be controlled via voice commands to query the weather. Voice interaction with the CD player and other functions would be possible.

[0065] The CD audio playback sequence of the present utility model is as follows: (11) Disc Data Reading Laser Scanning and Signal Conversion: The M93BG6 CD laser head 7 emits laser beams to illuminate the CD disc. Depressions and flat areas on the disc surface have different laser reflection rates. The photodetector in the laser head converts reflected light signals into weak electrical signals. Since electrical signals initially have low intensity and are susceptible to interference, they must be processed by the YT5901 laser head mechanics drive chip 19. First, they are amplified by low-noise amplifiers, then filtered, and stable disc data electrical signals are output, which are transmitted to the SC6137D decoder chip 11 of the control chip 8. The YT5901 laser head mechanics drive chip 19 simultaneously receives commands from the control chip 8 and drives motor components of the CD laser head 7. For example, during playback, the control chip 8 sends "disc rotation + laser head tracking" commands.The drive chip controls the main spindle motor to rotate the disc at a constant linear speed and simultaneously controls the feed motor to move the laser head radially along the disc. It ensures that the laser beam is aligned with the disc's data tracks to achieve continuous, stable data reading. (12) Audio Decoding and Output Digital Audio Decoding: The SC6137D decoder chip 11 receives disc data electrical signals transmitted by the YT5901 laser head mechanical drive chip 19 and first converts analog signals to digital signals via digital-to-analog conversion (ADC). It then decodes based on the CD audio coding protocol and extracts the original audio data (including left and right channels, sampling rate, bit depth, and other information). During decoding, the memory chip 12 (M12L616416A or T24C02A) provides temporary buffering and protocol support for decoding algorithms, ensuring decoding efficiency and accuracy.

[0066] Audio Power Amplification and Playback: Decoded digital audio signals are processed by the control chip 8 and transmitted to the audio power amplifier chip 20. This chip amplifies the signal drive capability according to the amplitude and frequency characteristics of the audio signals via power amplifier circuits (such as Class-D amplification) and converts low-power audio signals into high-power signals capable of driving 4Ω 3W internal magnetic speakers. This causes the speaker coils to vibrate and produce clear, full sound. Simultaneously, audio signals can be modulated by the FM transmitter module 16 into frequency-modulated broadcast signals (such as the 87-108MHz frequency band) and transmitted via antennas for car radios, FM receivers, and other devices for reception and playback. This expands audio output scenarios.

[0067] The speech interaction and intelligent home networking process of the present utility model is as follows: (21) Speech Command Recognition and Conversion Speech Collection and Preprocessing: The speech recognition module 9 has an integrated high-sensitivity microphone that collects user voices in the environment in real time. Since collected speech signals contain ambient noise (such as background noise, electromagnetic interference), the module first removes noise using adaptive filter algorithms (such as the Least Mean Square Error algorithm). It then performs framing and windowing of the speech (dividing continuous speech into short frames of 20-30 ms, applying Hamming windows, etc.) and prepares it for feature extraction.

[0068] Feature extraction and command matching: Pre-processed speech signals are used by the speech recognition module 9 for feature extraction using the Mel frequency cepstral coefficient (MFCC) algorithm. Speech signals are mapped to the Mel frequency scale, the energy of different frequency bands is calculated, and feature vectors are generated. These feature vectors are compared with the speech command feature library pre-stored in memory chip 12 (containing command features such as "Play CD," "Pause," "Turn on smart lighting," etc.). Optimal commands are matched using Dynamic Time Warping (DTW) and other algorithms, converted into digital commands that the control chip 8 can recognize, and transmitted to the control chip 8 via serial communication. (22) Execution of intelligent home control commands

[0069] Command analysis and protocol matching: After the control chip 8 receives digital commands from the speech recognition module 9, the SC6137D decoder chip 11 analyzes the command content (distinguishing between CD playback control, smart home control, and other types). For smart home control commands (such as "adjust living room air conditioner temperature"), the control chip 8 accesses the control protocol library for smart home devices pre-stored in the memory chip 12 and assigns appropriate communication protocols (such as Bluetooth Mesh protocol, ZigBee protocol adaptation subset) according to the target device of the command (living room air conditioner). It determines the command encoding format (such as temperature adjustment command code, data bit definition).

[0070] Command transmission and device networking: The control chip 8 transmits coded control commands to the Bluetooth mesh network 13. Based on the Bluetooth mesh network topology, the gateway sends commands to target smart home devices (air conditioner) via a broadcast and routing mechanism. The target device receives, analyzes, and executes the commands (such as temperature adjustment) and can report its execution status (such as current temperature and operating mode) via the Bluetooth mesh network. The gateway then transmits the data back to the control chip 8, creating a closed-loop command transmission-execution-feedback cycle. This achieves device coordination.

[0071] The interaction control and display principle of the present utility model is as follows: (31) Physical Buttons and Infrared Remote Control Physical Button Interaction: The physical buttons of the button module 23 (such as play, pause, and track skip buttons) are electrically connected to the control chip 8. When the buttons are pressed, internal contacts of the buttons close and generate low / high level jump signals. The control chip 8 detects signal changes via I / O ports and triggers the corresponding function execution according to preset button mapping relationships (such as the play button corresponding to the "CD Play / Pause" command). This implements physical interaction.

[0072] Infrared remote control: The 433MHz infrared remote control transmits infrared signals (containing key encoding information). The infrared or wireless remote control chip 22 (integrated in the control chip 8 module) receives the signals and converts them into electrical signals via photodiodes. After amplification, filtering, and decoding (recognizing the key encoding), these signals are transmitted to the control chip 8. The control chip 8 analyzes the encoding and executes corresponding operations (such as "volume up," "previous track"). This enables remote, touchless control. (32) Screen display control

[0073] Display data processing: The control chip 8 (SC6137D decoder chip 11) generates device status data (such as playback track name, playback progress, volume level, smart home network status) and transmits it via parallel / serial interfaces to the HT1621B LCD driver chip 21. The LCD driver chip 21 performs data format conversion (adapts to the liquid crystal display dot matrix structure), timing control (synchronizes the liquid crystal display update frequency), and generates liquid crystal display drive signals (line scan signals, column data signals).

[0074] Screen display and touch feedback: The HT1621B LCD driver chip 21 applies control signals to the touch / LCD liquid crystal display and controls the grayscale / color display of the liquid crystal display pixels. It presents a device status interface. In the case of a touch liquid crystal display, the screen's touch layer converts pressure / position signals into electrical signals during user touch operations (such as swiping to adjust volume) and transmits them via the driver chip to the control chip 8. The control chip 8 analyzes the signals and executes corresponding functions (such as volume adjustment). This implements a closed-loop touch interaction.

[0075] The energy management and safety assurance principle of the present utility model is as follows: (41) Battery Power Supply and Charging Battery Power Supply Logic: The DC voltage output by the 18650 lithium / polymer battery is first monitored by the DW01 battery protection chip 17. The protection chip collects battery voltage and current signals in real time. Upon detection of overvoltage (such as above 4.2V), undervoltage (such as below 2.75V), overcurrent (such as above the battery's rated discharge current), or short circuit, it quickly interrupts the battery output circuit, preventing battery damage, device malfunctions, and safety hazards. Under normal current consumption, after voltage stabilization by the protection chip, the battery voltage is provided to the control chip 8 and various functional modules as a stable DC power supply (such as 3.3V, 5V).

[0076] Charging Management Process: The TP4056 charging management chip 18 connects the external power supply (such as a 5V power supply via the Type-C charging interface) to the battery. During charging, the chip first checks the battery status (voltage, temperature). If the battery voltage is low, it charges at a constant current (e.g., 1A). As the battery voltage approaches the full charge voltage (4.2V), it switches to constant voltage charging, ensuring a full charge without overcharging. Simultaneously, the chip monitors the charging temperature in real time. If the temperature is too high (e.g., above 45°C), it automatically reduces the charging current or pauses charging, ensuring safe charging. Charging status data (such as charging current, voltage) is transmitted to the control chip 8 and can be displayed on the screen.

[0077] The environmental perception and extension function principle of the present utility model is as follows: (51) Camera-based environmental monitoring: Image collection and transmission: Camera 26 collects images of the environment around the device using an optical lens and converts light signals into electrical signals via an image sensor (such as a CMOS sensor). It then generates digital image data via analog-to-digital conversion (ADC). After optimization by image processing algorithms integrated into Camera 26 (such as noise reduction and white balance correction), the digital image data is transmitted to the control chip 8 via a wireless connection established by a Wi-Fi module (such as an ESP8266) using the TCP / IP protocol.

[0078] Intelligent scene networking: After the control chip receives 8 image data points, it analyzes environmental information using image recognition algorithms (such as OpenCV-based motion detection and light detection). For example, upon detecting low ambient light, it automatically controls RGB ambient lighting 14 to adjust brightness and color (such as brightening and switching to warmer colors). Upon detecting abnormally moving objects, it triggers security alarm logic and sends alarm information via Bluetooth mesh network 13 to user smartphones or networked smart home devices (such as starting recording on a smart camera 26). This enables environmental perception and intelligent response. (52) RGB ambient lighting 14 networking

[0079] Lighting Effect Control: The control chip 8 generates control commands based on the device's operating status (such as CD playback, pause, fast forward), audio signal characteristics (such as rhythm frequency, melody changes), and RGB ambient lighting. These commands are implemented via PWM (pulse-width modulation) signals. The control chip 8 outputs PWM signals with varying duty cycles via I / O ports, driving the red, green, and blue channels of RGB LED beads, respectively. For example, when playing fast-paced music, it outputs high-frequency PWM signals, causing the RGB LED beads to rapidly change colors and blink, creating a dynamic atmosphere. When the device is paused, it outputs low-duty-rate PWM signals, causing the light to glow softly and constantly, indicating the device status.

[0080] The above explanations describe the present utility model in relatively concrete and detailed terms through general explanations and specific embodiments. It should be understood that, based on the technical concept of the present utility model, some conventional adaptations or further innovations can be made to these specific embodiments. As long as they do not deviate from the technical concept of the present utility model, the technical solutions achieved through these conventional adaptations or further innovations also fall within the scope of protection of the claims of the present utility model.

[0081] This utility model discloses a voice-controlled CD player for integration with smart home systems. It comprises an upper housing, a lower housing, internal control components, and a CD laser head. The control component includes a control chip and a speech recognition module. The speech recognition module converts user input into control commands. The control chip includes a decoder chip, a memory chip, a Bluetooth mesh network, and a WLAN module, and can adapt to and communicate with smart home protocols. The device also includes RGB ambient lighting, an FM transmitter module, and a battery management system. This utility model utilizes commercially available hardware and existing algorithms to implement voice interaction, CD playback, and smart home integration. It overcomes the limitations of conventional CD players regarding restricted functionality and insufficient interactivity.

Claims

[1] Voice-controlled CD player for use with smart home systems, characterized by : an upper housing (1) wherein a rear section of the upper housing (1) is connected to a lower housing (2), a front section of the upper housing (1) forms a disc operating chamber (3), and the outside of the disc operating chamber (3) is connected to a removable cover plate (4), a receiving chamber (5) formed inside the upper housing (1) and the lower housing (2) in which a control component (6) and a CD laser head (7) are arranged; wherein the control component (6) comprises a control chip (8) and a speech recognition module (9); the speech recognition module (9) and the control chip (8) are electrically connected via serial interface connections, the speech recognition module (9) being designed to convert user input into device control commands for executing the CD playback functions by means of preset speech recognition algorithms; the CD laser head (7) and the control chip (8) are electrically connected, the CD laser head (7) is exposed in the disc operating chamber (3) and serves for installing and reading CD discs, wherein the control chip (8) comprises a decoder chip (11), a memory chip (12) and a Bluetooth mesh network (13); the memory chip (12) and the decoder chip (11) are electrically connected, the memory chip (12) being used to store operating data of the CD playback device, a voice command feature library and a control protocol library for smart home devices; the Bluetooth mesh network (13) and the decoder chip (11) are connected via serial interface connections, the Bluetooth mesh network (13) being used to use the CD playback device as a Bluetooth gateway and to establish communication links with smart home devices for transmitting control commands for smart home devices, wherein the control chip (8) is designed to assign appropriate control protocols for smart home devices according to the control commands issued by the speech recognition module (9), and the control chip (8) is also designed to send control signals to target smart home devices via the Bluetooth mesh network (13). [2] Voice-controlled CD playback device for cooperation with intelligent home systems according to claim 1, characterized by , that it also includes an RGB ambient lighting (14), the RGB ambient lighting (14) and the control chip (8) are electrically connected, the RGB ambient lighting (14) serves to present corresponding light effects according to the operating mode of the CD playback device and audio signal changes in order to indicate the operating status and to create an audio atmosphere. [3] Voice-controlled CD playback device for cooperation with intelligent home systems according to claim 1, characterized by, that it also includes an FM transmitter module (16), the FM transmitter module (16) and the control chip (8) are electrically connected, the FM transmitter module (16) serves to receive and transmit frequency-modulated broadcast signals in order to implement the FM radio function of the CD playback device. [4] Voice-controlled CD playback device for cooperation with intelligent home systems according to claim 1, characterized by , that the control chip (8) also includes a battery protection chip (17) and a charging management chip (18), inside the recording chamber (5) a battery module (10) is also arranged, the battery module (10) and the control chip (8) are electrically connected and serve to supply power to the CD playback device, The battery module (10) and the battery protection chip (17) are electrically connected; the battery protection chip (17) and the decoder chip (11) are electrically connected; the battery protection chip (17) serves to protect the battery module (10) from overvoltage, undervoltage, overcurrent and short circuit. The battery module (10) and the charging management chip (18) are electrically connected, the charging management chip (18) and the decoder chip (11) are electrically connected, the charging management chip (18) serves to monitor the charging current, voltage and temperature of the battery module (10). [5] Voice-controlled CD playback device for cooperation with intelligent home systems according to claim 1, characterized by, that the control chip (8) also includes a mechanical drive chip (19), the CD laser head (7) and the mechanical drive chip (19) are electrically connected, the mechanical drive chip (19) and the decoder chip (11) are electrically connected, the mechanical drive chip (19) serves to drive the CD laser head (7). [6] Voice-controlled CD playback device for cooperation with intelligent home systems according to claim 1, characterized by , that the control chip (8) also includes an audio power amplifier chip (20), the audio power amplifier chip (20) and the decoder chip (11) are electrically connected, the audio power amplifier chip (20) serves to amplify the audio signals output by the CD playback device. [7] Voice-controlled CD playback device for cooperation with intelligent home systems according to claim 1, characterized by, that the control chip (8) also includes an LCD driver chip (21) and an infrared or wireless remote control chip (22), the LCD driver chip (21) and the decoder chip (11) are electrically connected, the LCD driver chip (21) is used to control the touch / LCD display configured for the CD playback device, the infrared or wireless remote control chip (22) and the decoder chip (11) are electrically connected, the infrared or wireless remote control chip (22) is used to control the infrared remote control configured for the CD playback device. [8] Voice-controlled CD playback device for cooperation with intelligent home systems according to claim 1, characterized by, that it also includes a key module (23) and an interface component (15), the key module (23) has physical keys exposed on the top of the upper housing (1), the key module (23) and the control chip (8) are electrically connected, the key module (23) is used to control the CD playback device via physical keys, the interface component (15) and the control chip (8) are electrically connected, the interface component (15) includes a headphone interface, a USB interface, an SD card interface and a Type-C charging interface. [9] Voice-controlled CD playback device for cooperation with intelligent home systems according to claim 1, characterized by , that a table mount (24) and a wall mount (25) are arranged on the rear of the lower housing (2). [10] Voice-controlled CD playback device for cooperation with intelligent home systems according to claim 1, characterized by, that it also includes a camera (26), the camera (26) and the control chip (8) are connected via a Wi-Fi module, the camera (26) is used to capture environmental information around the CD playback device, the Wi-Fi module is also used to retrieve AI large model data from remote servers in real time in order to carry out real-time interaction dialogues between user and device.

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