Multifunctional electronic system based on integration

Abstract

The invention discloses a multifunctional electronic system based on integration, and the system comprises a main chip module which comprises multipath audio and video input and output, multi-format audio decoding and coding, multi-format video decoding, DTV and ATV front-end demodulation, a built-in memory, an integrated CPU, and communication protocol interfaces between the main chip module and other modules. The DTV receiving module is used for receiving the DTV and the ATV of the main chip module to realize video display and audio playing, and the digital radio module is used for receiving FM / AM / SW / LW signals and playing the FM / AM / SW / LW signals in an audio form; the talkback module is used for transmitting and receiving talkback; the reading lamp is externally connected with a reading lamp bar to realize on-off and brightness control of the reading lamp; and the SOS acousto-optic alarm module realizes an SOS acousto-optic alarm function through GPIO (General Purpose Input / Output) control of the main chip module and an onboard acousto-optic driving circuit. According to the system disclosed by the invention, all integrated functions are integrally realized, the compatible design of various functional modules in the all-in-one machine is realized, and multiple purposes are realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of multi-functional electronic technology, and particularly relates to a multi-functional electronic system based on integrated integration. Background Art

[0002] Currently in the market, there are few integrated electronic products among similar consumer products. Basically, they are all single-function products, such as portable DTV receivers, portable radios, portable walkie-talkies, SOS distress devices; or portable televisions and FM radios integrated with two functions.

[0003] When devices with these functions are needed, multiple devices are often required to have these functions, which requires users to carry multiple devices and is not portable, resulting in a poor user experience. Integrating these electronic products requires solving problems such as integration, control, and interfaces. Summary of the Invention

[0004] In view of the above problems, the present invention provides a multi-functional electronic system based on integrated integration, aiming to form an integrated multi-functional electronic product.

[0005] According to the first aspect of the embodiments of the present disclosure, a multi-functional electronic system based on integrated integration is provided, including: A main chip module, including multiple audio and video input / outputs, multi-format audio decoding and encoding, multi-format video decoding, DTV and ATV front-end demodulation, an internal memory, an integrated CPU, and a communication protocol interface with other modules.

[0006] A DTV television receiving module, configured to receive DTV and ATV of the main chip module to implement video display and audio playback, including a DTV television receiving main control chip, an external TV receiving interface, and a display device. The display device is a chip for converting an external LVDS to an RGB digital signal, and is used to drive a display; A digital radio module, configured to receive FM / AM / SW / LW signals and play them in the form of audio; A walkie-talkie module, configured to send and receive walkie-talkie signals, communicate with the main chip module through a serial port method, and be controlled by the main chip module; A reading lamp, externally connected to a reading lamp strip, and realizes the on / off and brightness control of the reading lamp through the GPIO control of the main chip module and the on-board LED lamp driving circuit; An SOS sound and light alarm module, realizes the SOS sound and light alarm function through the GPIO control of the main chip module and the on-board sound and light driving circuit; Among them, a level conversion circuit is provided in the serial communication between the main chip module and the walkie-talkie module to avoid communication anomalies caused by interface level differences between the main chip module and the walkie-talkie module; Shielding covers are respectively provided for the DTV television receiving module, the intercom module, and the radio module to avoid interference between modules; A filter circuit is provided for the radio frequency receiving part of each module to filter out signals of unnecessary radio frequency bands; The radio frequency parts of each module are all grounded for isolation of each radio frequency part.

[0007] In some embodiments, the system further includes a charging module, including a hand-cranked charging circuit and / or a direct plug-in charging circuit.

[0008] In some embodiments, the main chip module is an MSD3553 / 3663 DTV chip.

[0009] In some embodiments, the MSD3553 / 3663 DTV chip outputs an LVDS signal, which is converted into an RGB digital signal through an external conversion circuit GM8284DD to directly drive an RGB digital screen to display video content or UI.

[0010] In some embodiments, the MSD3553 / 3663 DTV chip outputs an analog audio signal to an audio amplifier chip CS8122, and the analog audio signal is amplified to drive the speaker to emit sound.

[0011] In some embodiments, the MSD3553 / 3663 DTV chip controls the operation of the DTV television receiving module through the I2C bus. The DTV television receiving module sends the intermediate frequency signal to the MSD3553 / 3663 DTV chip for front-end demodulation, and decodes the audio and video signals, which are respectively sent to the display device and the audio playback device.

[0012] In some embodiments, the MSD3553 / 3663 DTV chip controls the operation of the digital radio module through the I2C communication interface.

[0013] In some embodiments, the MSD3553 / 3663 DTV chip controls the parameters of the intercom module through serial communication, controls the use of the intercom through keys, and directly transmits the voice-electricity conversion signal of the built-in microphone to the intercom module for transmission; the audio signal received by the intercom module is given to the switching circuit in the form of analog audio and then input to the MSD3553 / 3663 DTV chip for sound processing, and output to the earphone or the speaker.

[0014] In some embodiments, the SOS alarm audio signal in the SOS sound and light alarm module is stored in an external Flash. When it is detected that an SOS alarm is needed, the SOS alarm audio signal is directly called and output to the power amplifier through the MSD3553 / 3663 DTV chip, and the SOS alarm audio signal is amplified to drive the speaker to emit sound.

[0015] In some embodiments, the DTV television receiving module includes a silicon tuner.

[0016] A multi-functional electronic system based on integrated integration provided by an embodiment of the present disclosure, under a powerful DTV main control chip, utilizes the powerful control ability of the DTV chip for comprehensive design to achieve the integrated implementation of various integrated functions (DTV reception and display, radio function, intercom function, SOS distress function, reading lamp function), solves the compatible design of various functional modules (DTV, radio, intercom, reading lamp, SOS emergency distress, emergency power generation) in the all-in-one machine, realizes multi-purpose use of one machine, and will greatly meet the strong needs of modern people after the product is put on the market. In this system, entertainment needs such as watching TV, listening to the radio, and reading lighting are realized on one product, and emergency needs such as communication (intercom), emergency distress (SOS sound and electricity alarm), and hand-cranked power generation in special situations are also realized.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Brief Description of the Drawings

[0018] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention.

[0019] Figure 1 is a schematic structural diagram of a multi-functional electronic system based on integrated integration in an embodiment of the present invention; Figure 2 is a schematic structural principle diagram of a multi-functional electronic system based on integrated integration in an embodiment of the present invention. Detailed Description of the Embodiments

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention rather than all structures are shown in the accompanying drawings.

[0021] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the steps as sequential processes, many of the steps can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the steps can be rearranged. The process can be terminated when its operations are completed, but it can also have additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0022] Such as Figure 1As shown in the figure, a multi-functional electronic system based on integrated integration includes: The main chip module 100 includes multiple audio and video input / outputs, multi-format audio decoding and encoding, multi-format video decoding, DTV and ATV front-end demodulation, built-in memory, integrated CPU, and communication protocol interfaces with other modules.

[0023] The DTV television receiving module 200 is used to receive DTV and ATV of the main chip module to achieve video display and audio playback, including a DTV television receiving main control chip, an external TV receiving interface, and a display device. The display device is a chip for converting external LVDS to RGB digital signals and is used to drive the display; The digital radio module 300 is used to receive FM / AM / SW / LW signals and play them in audio form; The intercom module 400 is used for the transceiver of intercoms, communicates with the main chip module through the serial port method, and is controlled by the main chip module; The reading lamp 500 is externally connected to a reading lamp strip, and through the GPIO control of the main chip module and the on-board LED lamp drive circuit, the on / off and brightness control of the reading lamp are realized; The SOS sound and light alarm module 600 realizes the SOS sound and light alarm function through the GPIO control of the main chip module and the on-board sound and light drive circuit.

[0024] The system further includes a charging module 700, including a hand-cranked charging circuit and / or a direct plug-in charging circuit.

[0025] Among them, a level conversion circuit is provided in the serial port communication between the main chip module and the intercom module to avoid communication anomalies caused by interface level differences between the main chip module and the intercom module; Shielding covers are respectively provided in the DTV television receiving module, the intercom module, and the radio module to avoid interference between modules; Filter circuits are provided in the RF receiving parts of each module to filter out unnecessary RF band signals; The RF parts of each module are grounded in an envelope manner for isolation of each RF part.

[0026] During the specific implementation process, as Figure 2 shown, the main chip module 100 is an MSD3553 / 3663 DTV chip.

[0027] Specifically, the MSD3553 / 3663 DTV chip of MTK is adopted as the main control IC. This chip has multiple audio and video input / outputs, multi-format audio decoding and encoding (MPEG-1 / MPEG-2 / AC-3 / WMA, etc.), multi-format video decoding (supporting MPEG-2 / MPEG-4 / HEVC / H.264 / RealMedial / AVS / VC-1 / Hardware JPG / NTSC, PAL, SECAM), DTV / ATV front-end demodulation, built-in memory, integrated high-speed and high-performance 32-BIT RISC CPU, and color picture quality enhancement technology. The communication protocols between the main chip and each module include serial communication, I2C communication, GPIO port control, etc.

[0028] Specifically, the DTV television receiving module 200 can receive DTV (ATSC) + ATV; the circuit part includes the main control chip and the external TV receiving silicon Tuner; it realizes video display and audio playback; the display part is an external IC for converting LVDS to RGB digital signals, which can drive portable display liquid crystal screens such as 4.3 inches, 5 inches, and 7 inches; the audio part is directly output to the earphone or an external power amplifier to drive the speaker. This SOC supports playing files such as pictures, audio, video, and text documents in the USB. The supported features are shown in Table 1: Table 1 Digital TV (DTV) Characteristic Parameters

[0029] Specifically, the digital radio module 300: can receive FM / AM / SW / LW signals and play them in audio form (through the speaker). The supported features are shown in Table 2: Table 2 Radio (FM / AM / SW) Characteristic Parameters

[0030] Specifically, the intercom module 400: SR-105U, communicates with the main control chip through the serial port, is controlled by the main control chip, and realizes the sending and receiving of intercom; an external microphone is used to collect voice, and an external speaker is used to play voice. The frequency band characteristics are shown in Table 3: Table 3 Intercom Characteristic Parameters

[0031] Specifically, the reading lamp 500: through an external reading lamp strip, realizes the on / off and brightness control of the reading lamp through the GPIO control of the main control and the on-board LED lamp drive circuit.

[0032] Specifically, the SOS sound and light alarm module 600: realizes the SOS sound and light alarm function through the GPIO control of the main control and the on-board sound and light drive circuit.

[0033] Specifically, the charging module 700: designed for portable products, with a built-in lithium battery. For emergency charging, a hand-crank charging circuit is designed, and a direct plug-in charging circuit is also designed for convenient general charging.

[0034] Preferably, the MSD3553 / 3663 DTV chip outputs an LVDS signal, which is converted into an RGB digital signal through an external conversion circuit GM8284DD to directly drive an RGB digital screen to display video content or UI.

[0035] Preferably, the MSD3553 / 3663 DTV chip outputs an analog audio signal to the audio amplifier chip CS8122, and the analog audio signal is amplified to drive the speaker to emit sound.

[0036] The core of the whole machine is the DTV chip (MSD3663 / 3553). This chip is a TV-class SOC that integrates a high-performance MCU. The embodiment is designed with this chip as the core. It is used as the main control, and through software and hardware, each functional module works according to the design requirements. The main chip outputs an LVDS signal, which is converted into an RGB digital signal through an external conversion circuit GM8284DD to directly drive an RGB digital screen (4.3 inches, 5 inches, 7 inches) to display video content or UI. For the audio part, the main chip outputs a controllable analog audio signal (which can directly drive headphones) to the power amplifier (CS8122), and the power amplifier amplifies it to drive the speaker to emit sound. Thus, the image display and audio emission of the whole product are completed.

[0037] Preferably, the MSD3553 / 3663 DTV chip controls the operation of the DTV television receiving module through the I2C bus. The DTV television receiving module sends the intermediate frequency signal to the MSD3553 / 3663 DTV chip for front-end demodulation, decoding the audio and video signals, and sending them to the display device and the audio playback device respectively.

[0038] Specifically, the DTV TV receiving module can receive digital TV DTV (ATSC standard) signals and analog TV ATV (NTSC / PAL / SECAM standards) signals. Enter the TV channel through the buttons, and then functions such as setting, channel scanning, and channel switching can be performed through the buttons. Working principle: The main chip controls the operation of the DTV TV receiving module (silicon Tuner - R842) through the I2C bus. The silicon Tuner sends the intermediate frequency signal to the main chip for front - end demodulation, decodes the audio - video signals, and sends them to the video display terminal (LCD screen display) and the sound - generating unit (speaker or earphone) respectively. The silicon Tuner - R842 is a high - performance hybrid TV silicon tuner, model R842; R842 can receive all analog and digital broadcast TV standards; it is a highly integrated silicon tuner, with a built - in low - power noise amplifier (LNA), mixer, phase - locked loop PLL, VGA, voltage regulator, and tracking filter, without the need for external SAW filters, LNAs, and RF balun converters.

[0039] Preferably, the MSD3553 / 3663 DTV chip controls the operation of the digital radio module through the I2C communication interface. Specifically, enter the radio channel through the buttons, and in this channel, broadcast information such as FM / AM / SW can be selected, and then UI objects can be selected through the buttons for operations such as setting, channel scanning, and station selection. Working principle: The main control chip controls all operations of the radio module through the I2C communication interface.

[0040] Preferably, the MSD3553 / 3663 DTV chip controls the parameters of the intercom module through serial communication, controls the use of the intercom through buttons, and the signal converted from the sound of the built - in microphone is directly transmitted to the intercom module for transmission; the audio signal received by the intercom module is given to the switching circuit in the form of analog audio and then input to the MSD3553 / 3663 DTV chip for sound processing, and output to the earphone or speaker. Specifically, the intercom function: Select the signal source through the buttons to enter the intercom mode, set the intercom mode parameters through the buttons (UI display), send messages through the buttons, and receive messages when idle. Circuit design: The main chip controls the parameters of the intercom module (SR - 105U / V) through serial (UART) communication, controls the use of the intercom through buttons, and the signal converted from the sound of the built - in microphone is directly transmitted to the intercom module for transmission; the audio signal received by the intercom module is given to the switching circuit in the form of analog audio and then input to the main chip for sound processing (volume, EQ, etc.), and then the main chip outputs to the earphone or speaker to present in the form of sound.

[0041] Preferably, the SOS alarm audio signal in the SOS sound and light alarm module is stored in an external Flash. When it is detected that SOS alarm is needed, the SOS alarm audio signal is directly called and output to a power amplifier through the MSD3553 / 3663 DTV chip. After the SOS alarm audio signal is amplified, it drives the speaker to sound. Specifically, when SOS alarm is triggered, it can be a one-key alarm. The internal sound channel is controlled by the GPIO of the main control chip to emit the SOS alarm sound, and the light-emitting channel is controlled to emit SOS flashing lights. The SOS alarm audio signal is stored in the external Flash. When it is detected that SOS alarm is needed (the Hall switch is closed and the SOS button is long-pressed), this audio signal is directly called and output to the power amplifier through the main chip, and then the speaker sounds the alarm; the SOS flashing lights are controlled by the main chip's GPIO to output the flashing frequency signal required for the flashing lights to control the operation of the light-emitting lamp tube.

[0042] Reading and flashlight functions: Enter the reading or flashlight function through a short button (SOS). When it is detected that the short button (SOS) and the Hall switch are closed, enter the flashlight function mode, and the main control turns on the barrel lamp through the GPIO; when it is detected that the short button (SOS) and the Hall switch are open, enter the reading lamp mode, and the main control controls the operation of the reading lamp strip through the GPIO, and can control the lamp group to emit the light required for reading (below 3W).

[0043] Hand-cranked power generation: This design is a portable product with a built-in lithium battery. It is designed to support charging through an external interface (Type-C), and also supports hand-cranking charging in case of emergency (when the battery is out of power, there is no external charging condition, and the device is urgently needed).

[0044] The present invention needs to solve the optimization of the levels between various functional modules (level conversion issues need to be considered for communication between modules with different levels), interference between modules (shielding of modules, such as adding shielding covers to the radio, DTV, and intercom modules), and isolation problems of internal RF lines. A level conversion circuit of 3.3V to 3V is added to the serial communication between the main chip and the intercom module, avoiding possible abnormal communication problems caused by the interface level difference between the main chip and the module. Solve the problem of interference between modules: Shielding covers are respectively added to the TV receiving RF module, intercom module, and radio module to avoid mutual interference of the RF part inside; in the optimization of circuit design - corresponding filter circuit designs are available in the circuit designs of the RF receiving parts of each module to filter out RF band signals that are not required for this module; in the PCB layout and wiring, the RF parts of each module have good grounding envelopes, minimizing the interference between modules, and thus solving the isolation problem of each RF part.

[0045] According to the above embodiments, a multifunctional electronic system based on integrated integration provided by the present disclosure, under the powerful DTV main control chip, utilizes the powerful control ability of the DTV chip for comprehensive design to achieve the integration of various integrated functions (DTV reception and display, radio function, intercom function, SOS distress function, reading lamp function), solves the compatible design of various functional modules (DTV, radio, intercom, reading lamp, SOS emergency distress, emergency power generation) in the all-in-one machine, realizes multi-purpose use of one machine. After the product is put on the market, it will greatly meet the strong needs of modern people. In this system, entertainment needs such as watching TV, listening to the radio, and reading lighting are realized on one product, and communication (intercom), emergency distress (SOS sound and electricity alarm), hand-cranked power generation and other emergency needs in special situations are also realized.

[0046] The system of the present invention aims at the single function of traditional devices, which cannot meet the diverse needs of contemporary people. By systematically integrating TV, radio (FM / AM), intercom, SOS distress device, and reading lighting function, it realizes multi-purpose use and multi-function of one machine, meets the use in multiple scenarios, and greatly improves the convenience of people's use. Through the integrated design of the system of the present invention, compared with traditional products, the cost is reduced to a great extent, the cost performance of people using the product is greatly improved, and the economic benefits are remarkable.

[0047] In this article, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a step or method comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such step or method.

[0048] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope of the present invention.

Claims

1. A multifunctional electronic system based on integrated integration, characterized in that, Including: The main chip module, including multi-channel audio and video input / output, multi-format audio decoding and encoding, multi-format video decoding, DTV and ATV front-end demodulation, built-in memory, integrated CPU, and communication protocol interfaces with other modules; The DTV television receiving module, used to receive DTV and ATV of the main chip module to achieve video display and audio playback, including a DTV television receiving main control chip, an external TV receiving interface, and a display device. The display device is a chip for converting external LVDS to RGB digital signals, used to drive the display; The digital radio module, used to receive FM / AM / SW / LW signals and play them in audio form; The intercom module, used for the transceiver of intercoms, communicates with the main chip module through the serial port method, and is controlled by the main chip module; The reading lamp, externally connected to a reading lamp strip, realizes the on / off and brightness control of the reading lamp through the GPIO control of the main chip module and the on-board LED lamp driving circuit; The SOS sound and light alarm module realizes the SOS sound and light alarm function through the GPIO control of the main chip module and the on-board sound and light driving circuit; Among them, a level conversion circuit is set in the serial communication between the main chip module and the intercom module to avoid communication anomalies caused by interface level differences between the main chip module and the intercom module; Shielding covers are respectively provided in the DTV television receiving module, the intercom module, and the radio module to avoid interference between modules; Filter circuits are provided in the RF receiving parts of each module to filter out unwanted RF band signals; The RF parts of each module are all envelope grounded for isolation of each RF part.

2. The multifunctional electronic system based on integrated integration according to claim 1, wherein, The system further includes a charging module, including a hand-cranked charging circuit and / or a direct plug-in charging circuit.

3. The multifunctional electronic system based on integrated integration according to claim 1, wherein, The main chip module is an MSD3553 / 3663 DTV chip.

4. The multifunctional electronic system based on one-piece integration according to claim 3, characterized in that, The MSD3553 / 3663 DTV chip outputs LVDS signals, which are converted into RGB digital signals through an external conversion circuit GM8284DD to directly drive the RGB digital screen to display video content or UI.

5. The multifunctional electronic system based on one-piece integration according to claim 3, characterized in that, The MSD3553 / 3663 DTV chip outputs analog audio signals to the audio amplifier chip CS8122, and the analog audio signals are amplified and then drive the speaker to sound.

6. The multifunctional electronic system based on one-piece integration according to claim 3, characterized in that, The MSD3553 / 3663 DTV chip controls the operation of the DTV television receiving module through the I2C bus. The DTV television receiving module sends the intermediate frequency signal to the MSD3553 / 3663 DTV chip for front-end demodulation, decodes the audio and video signals, and sends them to the display device and the audio playback device respectively.

7. The multifunctional electronic system based on one-piece integration according to claim 3, characterized in that The MSD3553 / 3663 DTV chip controls the operation of the digital radio module through the I2C communication interface.

8. The multifunctional electronic system based on integrated integration according to claim 3, characterized in that, The MSD3553 / 3663 DTV chip controls the parameters of the intercom module through serial communication, controls the use of the intercom through buttons, and directly conveys the signal converted from the microphone sound and electricity to the intercom module for transmission; the audio signal received by the intercom module is given to the switching circuit in the form of analog audio and then input to the MSD3553 / 3663 DTV chip for sound processing, and output to the earphone or the speaker.

9. The multifunctional electronic system based on one-piece integration according to claim 3, wherein, The SOS alarm audio signal in the SOS sound and light alarm module is stored in an external Flash. When it is detected that SOS alarm is needed, the SOS alarm audio signal is directly called and output to a power amplifier through the MSD3553 / 3663 DTV chip, and the SOS alarm audio signal is amplified to drive the speaker to sound.

10. The multifunctional electronic system based on one-piece integration according to claim 6, wherein The DTV television receiving module includes a silicon tuner.

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