Scanning pen mainboard supporting quick start and ultra-low power consumption standby

Abstract

The utility model provides a scanning pen mainboard supporting quick start and ultra-low power consumption standby, which belongs to the technical field of scanning pen mainboards, and comprises a charging and power management module, a Type-c interface supplies power to the mainboard, a battery is charged through a TP4057C charging chip, and the TP4057C charging chip supplies power to the mainboard. The XR872 chip can be used as the master control of a whole circuit board by a mainboard, if the chip does not perform any control within 5 minutes, the chip enters an ultra-low power consumption standby mode, at the moment, the XR872 can turn off a power-consuming circuit in a system to achieve low-power consumption standby, and when a scanning pen is used next time, a mechanical key of a scanning head triggers the XR872 chip to start the system immediately, so that the scanning pen is convenient to use. The CSK6011 chip is connected with the XR872 through an SPI (Serial Peripheral Interface), a power supply is quickly provided for the CSK6011 chip, the CSK6011 chip can complete image acquisition and splicing, OCR (Optical Character Recognition) and translation within 0.1 second after being electrified, and transmits a corresponding text to the XR872 through the SPI, and the XR872 is responsible for displaying the text, so that a quick starting function is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of scanning pen mainboards, and in particular to a scanning pen mainboard which supports fast startup and ultra-low power consumption standby. Background Art

[0002] The scanner's motherboard is the core component, its "brain." It integrates the pen's primary circuits and components, controlling and coordinating all of the pen's components to ensure its proper and stable operation. Specifically, the motherboard receives and processes signals from the scan head, converting scanned images or text into computer-readable data. It also communicates and transmits data with other external devices, such as computers and mobile phones, enabling data transmission and synchronization. Furthermore, the motherboard provides specialized functions, such as recognition algorithm processing and image optimization, to enhance scanning accuracy and efficiency.

[0003] However, scanner pens are a significant aid to student learning, making them a popular learning tool for many. Currently, monthly shipments average up to 1 million units. As a tool, people expect it to be ready to use right out of the box, rather than waiting for a long boot-up time. This is because most scanner pens currently on the market use Linux, which takes at least seven seconds to load and boot up, or even longer. Furthermore, their high power consumption prevents them from achieving long standby times, and low-power standby operation is a major issue. This design utilizes two chip combinations. One is the XR872, which runs an RTOS and serves as the host computer, controlling the entire circuit system. Its advantages include low-power standby operation, a minimum standby current of 30uA, and support for interrupt-triggered fast startup. The other is the CSK6011, a Lingsi AI chip with a built-in 128GB NPU. It can capture camera images within 0.1 seconds after power-up, perform image stitching, perform OCR recognition, and extract text from the images into text. Based on these two chips, through SPI and UART communication bridge, ultra-low power standby and fast startup problems can be solved.

[0004] Therefore, it is necessary to provide a scanning pen motherboard that supports fast startup and ultra-low power standby to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a scanning pen mainboard that supports fast startup and ultra-low power standby.

[0006] The utility model provides a scanning pen mainboard that supports fast startup and ultra-low power standby, comprising:

[0007] Charging and power management: the type-c interface powers the motherboard, the battery is charged through the TP4057C charging chip, and the battery powers the WIFI SOC XR872 system. The XR872 has a PMU power management system inside.

[0008] The minimum operating system of the XR872 chip consists of a nor FLASH, the main control chip XR872 and the clock oscillation circuit;

[0009] NOR FLASH storage circuit, responsible for storing CSK6011 operating firmware, as well as running image stitching, OCR algorithm and translation engine;

[0010] SD NAND storage circuit, responsible for storing,dictionaries, lexicons, and content resources;

[0011] The image acquisition circuit uses a 62-frame 80,000-pixel camera to transmit images to the CSK6011 chip for processing through the SPI interface;

[0012] Communication circuit, which consists of SPI bus and UART communication protocol, is responsible for the handshake communication between the host computer XR872 and CSK6011;

[0013] WIFI circuit, externally connected to a ceramic antenna, responsible for wide area network connection; H sound collection circuit, externally connected to an analog microphone to collect sound signals;

[0014] Audio power amplifier circuit, XR872 outputs analog audio signal, amplifies the sound through the power amplifier chip HAA9203B, and then drives the external speaker;

[0015] Display circuit, the main control transmits the image to the display screen through the SPI interface;

[0016] The TF card storage circuit consists of a TF card holder and is used to provide users with expanded storage.

[0017] Preferably, the charging and power management includes a TP4057C charging chip and an XR872;

[0018] The TP4057C charging chip has efficient charging management capabilities, ensuring safe and fast charging of the battery. The TP4057C charging chip may have multiple protection functions, such as overcharge protection, over-discharge protection, overcurrent protection, and short-circuit protection;

[0019] XR872, a highly integrated single processor.

[0020] Preferably, the minimum operating system of the XR872 chip includes a clock oscillation circuit;

[0021] Clock oscillator circuits use some form of feedback mechanism to generate a periodic signal. This signal is usually a sine wave, square wave, or other periodic waveform. Its frequency and stability are key indicators of clock oscillator circuits.

[0022] Preferably, the image acquisition circuit includes a 62-frame 80,000-pixel camera;

[0023] 62 frames 80,000 pixel camera, 62 frames frame rate, the camera can capture and display 62 images per second.

[0024] Preferably, the WIFI circuit includes a ceramic antenna;

[0025] Ceramic antennas are based on the conversion of high-frequency electric fields into electromagnetic waves. The transmitting antenna uses an electrode called an "antenna" to convert the high-frequency electric field formed between the antenna and the ground into electromagnetic waves, enabling the transmission and transmission of electromagnetic waves over long distances. The receiving antenna, on the other hand, uses the "antenna" electrode to induce electromagnetic waves in the air as an electric field, generating a high-frequency signal voltage that is then sent to the receiver for signal processing.

[0026] Preferably, the audio power amplifier circuit includes HAA9203B;

[0027] HAA9203B, HAA9203B has FM interference-free function. Through its differential input architecture and extremely high PSRR, this chip can effectively improve the purity of audio signals, reduce RF noise interference, and ensure clear and stable audio effects even in complex electromagnetic environments.

[0028] Compared with related technologies, the scanning pen motherboard provided by the present invention, which supports fast startup and ultra-low power standby, has the following beneficial effects:

[0029] 1. A scanning pen motherboard that supports fast startup and ultra-low power standby. The motherboard uses XR872 as the main control of the entire circuit board. If this chip does not perform any operation within 5 minutes, it will enter ultra-low power standby mode. At this time, XR872 will turn off the power-consuming circuits in the system to achieve low-power standby.

[0030] 2. A scanning pen motherboard that supports fast startup and ultra-low power standby. The next time the scanning pen is used, the mechanical button on the scanning head triggers the XR872 chip, immediately starting the system and quickly providing power to the CSK6011 chip. After powering on, the CSK6011 can complete image acquisition and splicing, OCR and translation within 0.1 seconds, and transmit the corresponding text to the XR872 through the SPI interface. The XR872 is responsible for displaying the text, realizing the fast startup function. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall circuit operation architecture of the present invention;

[0032] Numbers in the figure: A, charging and power management; B, XR872 chip minimum operating system; C, NORFLASH storage circuit; D, SDNAND storage circuit; E, image acquisition circuit; F, communication circuit; G, WIFI circuit; H, sound acquisition circuit; K, audio amplifier circuit; M, display circuit; N, TF card storage circuit. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figure 1 The embodiment of the present invention provides a scanning pen motherboard that supports fast startup and ultra-low power standby, including:

[0035] Charging and power management A, the type-c interface is used to power the motherboard, the battery is charged through the TP4057C charging chip, and the battery powers the WiFi SOC XR872 system. The XR872 has a PMU power management system inside;

[0036] The minimum operating system B of the XR872 chip consists of a nor FLASH, the main control chip XR872 and the clock oscillation circuit;

[0037] NOR FLASH storage circuit C is responsible for storing the CSK6011 operating firmware, as well as running image stitching, OCR algorithm and translation engine;

[0038] SD NAND storage circuit D, is responsible for storing,dictionaries, lexicons, and content resources;

[0039] Image acquisition circuit E uses a 62-frame 80,000-pixel camera to transmit images to the CSK6011 chip for processing through the SPI interface;

[0040] Communication circuit F, which consists of SPI bus and UART communication protocol, is responsible for handshake communication between the host computer XR872 and CSK6011;

[0041] WIFI circuit G, externally connected to a ceramic antenna, is responsible for wide area network connection; H sound collection circuit, externally connected to an analog microphone to collect sound signals;

[0042] Audio power amplifier circuit K, XR872 outputs analog audio signal, amplifies the sound through the power amplifier chip HAA9203B, and then drives the external speaker;

[0043] Display circuit M, the main control transmits the image to the display screen through the SPI interface;

[0044] The TF card storage circuit N is composed of a TF card holder and is used to provide users with expanded storage.

[0045] Charging and power management A includes TP4057C charging chip and XR872;

[0046] The TP4057C charging chip has efficient charging management capabilities, ensuring safe and fast charging of the battery. The TP4057C charging chip may have multiple protection functions, such as overcharge protection, over-discharge protection, overcurrent protection, and short-circuit protection;

[0047] XR872, a highly integrated single processor.

[0048] The minimum operating system B of the XR872 chip includes a clock oscillation circuit;

[0049] Clock oscillator circuits use some form of feedback mechanism to generate a periodic signal. This signal is usually a sine wave, square wave, or other periodic waveform. Its frequency and stability are key indicators of clock oscillator circuits.

[0050] The image acquisition circuit E includes a 62-frame 80,000-pixel camera;

[0051] 62 frames 80,000 pixel camera, 62 frames frame rate, the camera can capture and display 62 images per second.

[0052] The WIFI circuit G includes a ceramic antenna;

[0053] Ceramic antennas are based on the conversion of high-frequency electric fields into electromagnetic waves. The transmitting antenna uses an electrode called an "antenna" to convert the high-frequency electric field formed between the antenna and the ground into electromagnetic waves, enabling the transmission and transmission of electromagnetic waves over long distances. The receiving antenna, on the other hand, uses the "antenna" electrode to induce electromagnetic waves in the air as an electric field, generating a high-frequency signal voltage that is then sent to the receiver for signal processing.

[0054] Audio power amplifier circuit K includes HAA9203B;

[0055] HAA9203B, HAA9203B has FM interference-free function. Through its differential input architecture and extremely high PSRR, this chip can effectively improve the purity of audio signals, reduce RF noise interference, and ensure clear and stable audio effects even in complex electromagnetic environments.

[0056] When working, after the scanning head is pressed down, the mechanical switch of the scanning head is triggered, and the XR872 chip, which is in ultra-low power standby mode, is triggered to start. After the XR872 chip is started, the power of the CSK6011 chip is immediately turned on. After the CSK6011 is powered on, within 0.1 seconds, the camera can be opened and the image can be collected. The algorithm is run through the internal NPU neural network unit to splice and OCR the collected images, extract the text in the long picture, form text information, and perform Chinese or English translation. It is transmitted to the XR872 through the SPI bus. After the XR872 receives the text information, it transmits it to the display screen through the SPI interface for display. It also uses TTS speech synthesis technology to convert text into speech. After the XR872 converts the text into speech, it transmits the sound to the back-end power amplifier chip through the analog audio interface to amplify the sound and play it out.

[0057] Charging and power management A, the mainboard is powered by the type-c interface, and the battery is charged through the TP4057C charging chip. The battery powers the WIFI SOC XR872 system. The XR872 has an internal PMU power management that can output 3.3V power to the outside. The RF amplifier circuit inside the XR872 is powered by an external DC-DC 1.8V. In addition, the battery is stepped down to 3.3V to power the CSK6011. The XR872 chip minimum operating system B consists of a NOR FLASH, the main control chip XR872 and the clock oscillation circuit. It is responsible for the operation of the entire system, various data processing, including sound input, sound output, image output driver, NOR FLASH storage circuit C, responsible for storing the CSK6011 operating firmware, as well as running image stitching, OCR algorithm and translation engine, SD NAND storage circuit D is responsible for storing dictionaries, lexicons, and content resources. Image acquisition circuit E uses a 62-frame 80,000-pixel camera to transmit images to the CSK6011 chip for processing through the SPI interface. Communication circuit F, composed of SPI bus and UART communication protocol, is responsible for handshake communication between the host computer XR872 and CSK6011. WIFI circuit G is externally connected to a ceramic antenna and is responsible for wide area network connection. Sound acquisition circuit H is externally connected to an analog microphone to collect sound signals. Audio power amplifier circuit K, XR872 outputs analog audio signals, amplifies the sound through the power amplifier chip HAA9203B, and then drives the external speaker. Display circuit M, the main control transmits images to the display screen through the SPI interface. TF card storage circuit N, composed of a TF card slot, is used to provide users with expanded storage.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scanning pen motherboard that supports fast startup and ultra-low power standby, characterized in that: include: Charging and power management (A): The mainboard is powered by the Type-C interface, the battery is charged through the TP4057C charging chip, and the battery powers the WiFi SOC XR872 system. The XR872 has a PMU power management system. The minimum operating system of the XR872 chip (B) consists of a nor FLASH, the main control chip XR872 and the clock oscillation circuit; NOR FLASH storage circuit (C), responsible for storing CSK6011 operating firmware, as well as running image stitching, OCR algorithm and translation engine; SD NAND storage circuit (D), responsible for storing,dictionaries, lexicons, and content resources; The image acquisition circuit (E) uses a 62-frame 80,000-pixel camera to transmit images to the CSK6011 chip for processing through the SPI interface; Communication circuit (F), composed of SPI bus and UART communication protocol, is responsible for handshake communication between the host computer XR872 and CSK6011; WIFI circuit (G), externally connected to a ceramic antenna, responsible for wide area network connection; H sound collection circuit, externally connected to an analog microphone to collect sound signals; Audio power amplifier circuit (K), XR872 outputs analog audio signal, amplifies the sound through the power amplifier chip HAA9203B, and then drives the external speaker; Display circuit (M), the main control transmits the image to the display screen through the SPI interface; The TF card storage circuit (N) consists of a TF card holder and is used to provide users with expanded storage.

2. The scanning pen motherboard supporting fast startup and ultra-low power standby according to claim 1, characterized in that: The charging and power management (A) includes the TP4057C charging chip and XR872.

3. The scanning pen motherboard supporting fast startup and ultra-low power standby according to claim 1, characterized in that: The XR872 chip minimum operating system (B) includes a clock oscillation circuit.

4. The scanning pen motherboard supporting fast startup and ultra-low power standby according to claim 1, characterized in that: The image acquisition circuit (E) includes a 62-frame 80,000-pixel camera; 62 frames 80,000 pixel camera, 62 frames frame rate, the camera can capture and display 62 images per second.

5. The scanning pen motherboard supporting fast startup and ultra-low power standby according to claim 1, characterized in that: The WIFI circuit (G) includes a ceramic antenna; Ceramic antennas are based on the conversion of high-frequency electric fields into electromagnetic waves. Their transmitting antenna converts the high-frequency electric field formed between the antenna and the ground into electromagnetic waves through an electrode called "antenna", thereby being able to transmit and transmit electromagnetic waves over long distances. Their receiving antenna uses the "antenna" electrode to induce electromagnetic waves in the air as electric fields, generate high-frequency signal voltage, and then send it to the receiver for signal processing.

6. The scanning pen motherboard supporting fast startup and ultra-low power standby according to claim 1, characterized in that: The audio power amplifier circuit (K) includes HAA9203B; HAA9203B, HAA9203B has FM interference-free function. Through its differential input architecture and extremely high PSRR, this chip can effectively improve the purity of audio signals, reduce RF noise interference, and ensure clear and stable audio effects even in complex electromagnetic environments.

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