Low-cost non-screen scanning pen mainboard

Abstract

The utility model provides a low-cost screen-free scanning pen mainboard, which belongs to the technical field of screen-free scanning pens, and comprises a charging and power supply management A, an XR872 chip minimum operation system B, an Nor FLASH and a main control chip XR872, the nor FLASH is mainly used for storing and operating firmware and storing user settings and a clock oscillation circuit C, stable 40M frequency is provided for a system, the nor FLASH can be used for being installed on a mobile phone or a tablet computer by a user by being compatible with applications of Android, swan and IOS, a low-power-consumption WIFI SOC XR872 chip is adopted in circuit design master control of the scanning pen, and the whole circuit is simple in periphery, low in cost and convenient to use. After a picture is collected through the scanning pen, the XR872 chip carries out picture compression, and the compressed picture is transmitted to a mobile phone or a tablet APP terminal through WIFI.

Description

Technical Field

[0001] The utility model relates to the technical field of screenless scanning pens, in particular to a low-cost screenless scanning pen mainboard. Background Art

[0002] The screenless scanning pen motherboard is one of the core components of the scanning pen. It integrates the circuits and chips required to process the scanned image data. Screenless scanning pens usually refer to portable scanning devices without built-in display screens. They are mainly used to convert the contents of paper documents, pictures or other printed materials into digital formats for storage, editing or transmission. The motherboard plays a vital role in the screenless scanning pen. It is responsible for receiving signals from the scanning head (optical sensor), processing and analyzing these signals to extract text or graphic information from the image. The processor on the motherboard will decode and identify this information, and may further edit or format it.

[0003] However, the scanner pens currently on the market are all equipped with screens, which account for about 45% of the cost, and are relatively expensive, so some users cannot afford them. Therefore, the market needs to launch a scanner without a screen to reduce costs and meet the needs of these customers.

[0004] Therefore, it is necessary to provide a low-cost screenless scanning pen mainboard to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a low-cost screenless scanning pen mainboard.

[0006] The utility model provides a low-cost screenless scanning pen mainboard, comprising:

[0007] Charging and power management: the type-c interface powers the motherboard, and the battery is charged through the WSCY4054A charging chip;

[0008] The minimum operating system of the XR872 chip consists of a nor FLASH and the main control chip XR872. The nor FLASH is mainly used to store the operating firmware and save user settings;

[0009] Clock oscillation circuit provides a stable 40M frequency to the system;

[0010] WIFI circuit, externally connected to the ceramic antenna, is responsible for wide area network connection and transmits images to mobile phones or tablets;

[0011] The image acquisition circuit uses a 66-frame 80,000-pixel camera to transmit the image to the XR872 chip for processing through the SPI interface;

[0012] The sound collection circuit is connected to an external analog microphone to collect sound signals.

[0013] Preferably, the charging and power management includes a WSCY4054A charging chip;

[0014] The WSCY4054A charging chip has functions such as overcharge protection, over-discharge protection, overcurrent protection, and temperature protection to prevent the battery from being damaged or dangerous during the charging process.

[0015] Preferably, the minimum operating system of the XR872 chip includes nor FLASH and the main control chip XR872;

[0016] Nor FLASH, stores program code, firmware, operating system and other data. Compared with NAND Flash, Nor Flash has lower storage density and higher cost;

[0017] The main control chip is XR872, which has multiple functions including core processor ARM Cortex-M4F CPU, memory and storage, and audio processing.

[0018] Preferably, the WIFI circuit includes a ceramic antenna;

[0019] Ceramic antenna, the "antenna" electrode converts the high-frequency electric field formed between the antenna and the ground into electromagnetic waves, thereby emitting and transmitting electromagnetic waves over long distances; at the same time, it can also induce electromagnetic waves in the air as an electric field, generate high-frequency signal voltage, and send it to the receiver for signal processing.

[0020] Preferably, the image acquisition circuit includes a 66-frame 80,000-pixel camera and an SPI interface.

[0021] Preferably, the 66-frame 80,000-pixel camera can capture and transmit 66 images per second.

[0022] Preferably, the SPI interface and SPI interface technology have good reliability, can provide higher anti-interference performance and stability, and can reliably exchange data in different environments.

[0023] Compared with the related art, the low-cost screenless scanning pen motherboard provided by the utility model has the following beneficial effects:

[0024] 1. A low-cost screenless scanning pen motherboard, which is compatible with Android, Hongmeng and IOS applications, for users to install on mobile phones or tablets. The scanning pen circuit design uses a low-power WIFI SOC XR872 chip as the main control. The entire circuit is simple and inexpensive.

[0025] 2. A low-cost screenless scanning pen motherboard. After the scanning pen collects the picture, the XR872 chip compresses the picture and transmits it to the mobile phone or tablet APP via WIFI. The APP application on the mobile phone or tablet completes the image stitching, OCR and translation, and displays it on the mobile phone or tablet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall circuit structure of the utility model;

[0027] Numbers in the figure: A, charging and power management; B, minimum operating system of XR872 chip; C, clock oscillation circuit; D, WIFI circuit; E, image acquisition circuit; F, sound acquisition circuit. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1 , a low-cost screenless scanning pen motherboard provided by the embodiment of the utility model includes charging and power management A, the type-c interface is used to power the motherboard, and the battery is charged through the WSCY4054A charging chip;

[0030] The minimum operating system B of the XR872 chip consists of a nor FLASH and the main control chip XR872. The nor FLASH is mainly used to store the operating firmware and save user settings;

[0031] Clock oscillation circuit C provides a stable 40M frequency to the system;

[0032] WIFI circuit D, externally connected to the ceramic antenna, is responsible for wide area network connection and transmits images to mobile phones or tablets;

[0033] Image acquisition circuit E uses a 66-frame 80,000-pixel camera to transmit images to the XR872 chip for processing via the SPI interface;

[0034] The sound collection circuit F is externally connected to an analog microphone to collect sound signals.

[0035] Charging and power management A includes WSCY4054A charging chip;

[0036] The WSCY4054A charging chip has functions such as overcharge protection, over-discharge protection, overcurrent protection, and temperature protection to prevent the battery from being damaged or dangerous during the charging process.

[0037] The minimum operating system B of the XR872 chip includes nor FLASH and the main control chip XR872;

[0038] Nor FLASH, stores program code, firmware, operating system and other data. Compared with NAND Flash, Nor Flash has lower storage density and higher cost;

[0039] The main control chip is XR872, which has multiple functions including core processor ARM Cortex-M4F CPU, memory and storage, and audio processing.

[0040] The WIFI circuit D includes a ceramic antenna;

[0041] Ceramic antenna, the "antenna" electrode converts the high-frequency electric field formed between the antenna and the ground into electromagnetic waves, thereby emitting and transmitting electromagnetic waves over long distances; at the same time, it can also induce electromagnetic waves in the air as an electric field, generate high-frequency signal voltage, and send it to the receiver for signal processing.

[0042] The image acquisition circuit E includes a 66-frame 80,000-pixel camera and an SPI interface.

[0043] 66-frame 80,000-pixel camera, 66-frame camera can capture and transmit 66 images per second.

[0044] SPI interface, SPI interface technology has good reliability, can provide higher anti-interference performance and stability, and can reliably exchange data in different environments.

[0045] When working, you must first develop applications compatible with Android, Hongmeng and IOS, and provide them to users to install on mobile phones or tablets. After the scanning head of the scanning pen is pressed down, an 80,000-pixel, 66-frame camera starts to collect pictures. After the camera collects the picture, it is transmitted to the XR872 chip of the motherboard through the SPI interface for picture compression, and then connected to the Internet through WIFI to transmit the picture to the application end of the mobile phone or tablet. After the application end of the mobile phone or tablet receives the compressed picture, it starts to decompress, stitch each picture, OCR, extract the text in the picture to form text, and then translate, display and broadcast it; Charging and power management A, the type-c interface is used to power the motherboard, and the battery is charged through the WSCY4054A charging chip. The battery powers the WIFI SOC XR872 system. The XR872 has PMU power management inside, which can output 3.3V power supply to the outside. The internal RF amplifier circuit of the XR872 is powered by an external DC-DC 1.8V. The minimum operating system of the XR872 chip B is powered by a nor FLASH, the main control chip XR872, nor FLASH is mainly used to store running firmware and save user settings, XR872 is mainly responsible for system operation, scheduling, data processing and image compression, image transmission, clock oscillation circuit C, provides a stable 40M frequency for the system, WIFI circuit D, externally connected to the ceramic antenna, responsible for wide area network connection, transmits the image to the mobile phone or tablet, image acquisition circuit E, using a 66-frame 80,000-pixel camera, transmits the image to the XR872 chip for processing through the SPI interface, sound acquisition circuit F, an external analog microphone is connected to collect sound signals.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-cost screenless scanning pen motherboard, characterized in that: include Charging and power management (A), the type-c interface powers the motherboard and charges the battery through the WSCY4054A charging chip; The minimum operating system of the XR872 chip (B) consists of a nor FLASH and the main control chip XR872. The nor FLASH is mainly used to store the operating firmware and save user settings; Clock oscillation circuit (C), provides a stable 40M frequency to the system; WIFI circuit (D), externally connected to the ceramic antenna, is responsible for wide area network connection and transmits images to mobile phones or tablets; The image acquisition circuit (E) uses a 66-frame 80,000-pixel camera to transmit the image to the XR872 chip for processing through the SPI interface; The sound collection circuit (F) is connected to an external analog microphone to collect sound signals.

2. A low-cost screenless scanning pen motherboard according to claim 1, characterized in that: Charging and power management (A) includes WSCY4054A charging chip; The WSCY4054A charging chip has overcharge protection, over-discharge protection, over-current protection, and temperature protection functions to prevent the battery from being damaged or dangerous during the charging process.

3. A low-cost screenless scanning pen motherboard according to claim 1, characterized in that: The XR872 chip minimum operating system (B) includes nor FLASH and a main control chip XR872; Nor FLASH, which stores program code, firmware, operating system, and other data. Compared with NAND Flash, Nor Flash has lower storage density and higher cost; The main control chip is XR872, which has multiple functions including core processor ARM Cortex-M4F CPU, memory and storage, and audio processing.

4. A low-cost screenless scanning pen motherboard according to claim 1, characterized in that: The WIFI circuit (D) comprises a ceramic antenna; Ceramic antenna, the "antenna" electrode converts the high-frequency electric field formed between the antenna and the ground into electromagnetic waves, thereby emitting and transmitting electromagnetic waves over long distances; at the same time, it can also induce electromagnetic waves in the air as an electric field, generate high-frequency signal voltage, and send it to the receiver for signal processing.

5. A low-cost screenless scanning pen motherboard according to claim 2, characterized in that: The image acquisition circuit (E) comprises a 66-frame 80,000-pixel camera and an SPI interface.

6. A low-cost screenless scanning pen motherboard according to claim 5, characterized in that: The 66-frame 80,000-pixel camera can capture and transmit 66 images per second.

7. A low-cost screenless scanning pen motherboard according to claim 5, characterized in that: The SPI interface and SPI interface technology have good reliability, can provide higher anti-interference performance and stability, and can reliably exchange data in different environments.

Images