Intelligent Android board and output circuit thereof

Abstract

The utility model discloses an intelligent Android board and an output circuit thereof, which relate to the technical field of equipment circuit output and comprise a main control unit and a plurality of functional units respectively connected with the main control unit. The plurality of functional units comprise a power management chip, a hard disk interface, a USB (Universal Serial Bus) interface, an SD (Secure Digital) card slot, an Ethernet interface, a storage module, a memory module and a WIFI (Wireless Fidelity) / Bluetooth module; the intelligent Android board output circuit comprises a dual-frequency output unit; the double-frequency output unit comprises an LVDS output and an HDMI output, and the LVDS output and the HDMI output can be carried out at the same time. Through cooperation of LVDS output and HDMI output, a breakthrough result of simultaneous output of two videos is successfully realized, the types of connectable displays are greatly expanded and are not limited to a single type any more, a wider selection space is provided for users, interface confusion and interference are avoided, and the practicability and applicability of products are further enhanced. And convenience is brought to a user.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment circuit output, in particular to an intelligent Android board and its output circuit. Background Technique

[0002] At present, many Android boards widely used in the market have some limitations. Specifically, a considerable number of Android boards are often only equipped with a single HDMI output interface. Such a design results in a relatively single type of display that can be connected, lacking sufficient flexibility and compatibility. In actual application scenarios, due to only having a single output path, users will be greatly restricted when choosing a display device to match it, unable to meet diverse needs. In addition, there is also an important problem with this single HDMI output design, that is, it is impossible to effectively separate and display the operation interface and the playback interface. In the actual use process, this will bring a lot of inconvenience to users. For example, when a user hopes to operate and watch playback content simultaneously on one screen, due to the inability to effectively separate the interfaces, it may lead to confusion in operation and visual interference, thereby affecting the user experience and usage efficiency. Especially in some scenarios with specific requirements for interface display, such as professional entertainment venues or specific working environments, this limitation will be particularly prominent. Content of the Utility Model

[0003] The purpose of the utility model is to provide an output circuit for an intelligent Android board to solve at least any one of the problems mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: An output circuit of an intelligent Android board, the intelligent Android board includes a main control unit and a plurality of functional units respectively connected to the main control unit. The plurality of functional units include a power management chip, a hard disk interface, a USB interface, an SD card slot, an Ethernet interface, a storage module, a memory module, and a WIFI / Bluetooth module. It is characterized in that: the output circuit of the intelligent Android board includes a dual-frequency output unit;

[0005] The dual-frequency output unit includes an LVDS output and an HDMI output, and the LVDS output and the HDMI output can be carried out simultaneously;

[0006] The LVDS output and the HDMI output are connected to the main control unit.

[0007] Preferably, the dual - frequency output unit includes a dual - frequency output circuit, a first protection circuit, and a second protection circuit. The dual - frequency output circuit is respectively connected to the first protection circuit and the second protection circuit. The first protection circuit includes a first protection chip, and the second protection circuit includes a second protection chip. The first protection chip and the second protection chip have ports of OUT1, OUT2, OUT3, OUT4, GND1, GND2, IN1, IN2, IN3, and IN4. Among them, D2P and D0P are respectively connected to the OUT1 terminals of the first protection chip and the second protection chip, D2N and D0N are respectively connected to the OUT2 terminals of the first protection chip and the second protection chip, D1P and CLKP are respectively connected to the OUT3 terminals of the first protection chip and the second protection chip, D1N and CLKN are connected to the OUT4 terminals of the first protection chip and the second protection chip, G_D2, G_D1, G_D0, G_CLK, G_DDC / CEC, and 5V are all grounded. The CEC is connected to HDMI - HCEC, the SCL is connected to HSCL, the SDA is connected to HSDA, the HOT_PLUG_DET is connected to HHPD. The IN1 terminals of the first protection chip and the second protection chip are respectively connected to HTX2P and HTX0P, the IN2 terminals of the first protection chip and the second protection chip are respectively connected to HTX2N and HTX0N, the IN3 terminals of the first protection chip and the second protection chip are respectively connected to HTX1P and HTXCP, and the IN4 terminals of the first protection chip and the second protection chip are respectively connected to HTX1N and HTXCN.

[0008] Preferably, D2P and D0P are respectively connected to the OUT1 terminals of the first protection chip and the second protection chip, D2N and D0N are respectively connected to the OUT2 terminals of the first protection chip and the second protection chip, the GND1 terminals and GND2 terminals of the first protection chip and the second protection chip are both grounded, D1P and CLKP are respectively connected to the OUT3 terminals of the first protection chip and the second protection chip, D1N and CLKN are connected to the OUT4 terminals of the first protection chip and the second protection chip, G_D2, G_D1, G_D0, G_CLK, G_DDC / CEC and 5V are all grounded, the CEC is connected to HDM-HCEC, the SCL is connected to HSCL, the SDA is connected to HSDA, the HOT_PLUG_ DET is connected to HHPD, the IN1 terminals of the first protection chip and the second protection chip are respectively connected to HTX2P and HTX0P, the IN2 terminals of the first protection chip and the second protection chip are respectively connected to HTX2N and HTX0N, the IN3 terminals of the first protection chip and the second protection chip are respectively connected to HTX1P and HTXCP, and the IN4 terminals of the first protection chip and the second protection chip are respectively connected to HTX1N and HTXCN.

[0009] Preferably, the dual-frequency output unit further includes ESD6, ESD7, ESD8 and ESD9. The ESD6 is connected to the HOT_PLUG_ DET, the ESD7 is connected to the SDA, the ESD8 is connected to the CEC, and the ESD9 is connected to the SCL.

[0010] Preferably, the main control unit uses an ALLWinner A40I chip.

[0011] Preferably, the multiple functional units include a power management chip, a hard disk interface, a USB interface, an SD card slot, an Ethernet interface, a storage module, a memory module, and a WIFI / Bluetooth module. Each of the functional modules is respectively connected to the main control unit to implement the corresponding functions of the mobile terminal.

[0012] Preferably, the power management chip is connected to the main control unit to supply power to the main control unit, the dual-frequency output unit, and each of the functional units.

[0013] Preferably, it includes a main control unit, multiple functional units respectively connected to the main control unit, and an intelligent Android board output circuit.

[0014] The beneficial effects of the present utility model are as follows:

[0015] In the present utility model, through the cooperation of LVDS output and HDMI output, a breakthrough result of simultaneously outputting two videos is successfully achieved. This not only greatly expands the types of display monitors that can be connected, no longer being limited to a single type, providing users with a wider selection space, but also enables the display of completely different contents on the dual screens. In this way, the operation interface and the playback interface can be effectively split-screen displayed, allowing the operation interface and the playback interface to be presented independently. The realization of this split-screen playback greatly improves the convenience and efficiency of operation. Users can focus on operations on one screen and clearly watch the playback content on the other screen, avoiding interface confusion and interference, further enhancing the practicality and applicability of the product, and bringing convenience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall circuit structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the HDMI output circuit structure of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] The present utility model provides as Figure 1-2The output circuit of an intelligent Android board as shown. The intelligent Android board includes a main control unit and multiple functional units respectively connected to the main control unit. The multiple functional units include a power management chip, a hard disk interface, a USB interface, an SD card slot, an Ethernet interface, a storage module, a memory module, and a WIFI / Bluetooth module. The output circuit of the intelligent Android board includes a dual-frequency output unit; the dual-frequency output unit includes an LVDS output and an HDMI output, and the LVDS output and the HDMI output can be carried out simultaneously; the LVDS output and the HDMI output are connected to the main control unit. The dual-frequency output unit includes a dual-frequency output circuit, a first protection circuit, and a second protection circuit. The dual-frequency output circuit is respectively connected to the first protection circuit and the second protection circuit; the first protection circuit includes a first protection chip, and the second protection circuit includes a second protection chip; the first protection chip and the second protection chip have ports of OUT1, OUT2, OUT3, OUT4, GND1, GND2, IN1, IN2, IN3, IN4. Among them, D2P and D0P are respectively connected to the OUT1 terminals of the first protection chip and the second protection chip, D2N and D0N are respectively connected to the OUT2 terminals of the first protection chip and the second protection chip, D1P and CLKP are respectively connected to the OUT3 terminals of the first protection chip and the second protection chip, D1N and CLKN are connected to the OUT4 terminals of the first protection chip and the second protection chip, G_D2, G_D1, G_D0, G_CLK, G_DDC / CEC, and 5V are all grounded, CEC is connected to HDMI - HCEC, SCL is connected to HSCL, SDA is connected to HSDA, HOT_PLUG_DET is connected to HHPD, the IN1 terminals of the first protection chip and the second protection chip are respectively connected to HTX2P and HTX0P, the IN2 terminals of the first protection chip and the second protection chip are respectively connected to HTX2N and HTX0N, the IN3 terminals of the first protection chip and the second protection chip are respectively connected to HTX1P and HTXCP, and the IN4 terminals of the first protection chip and the second protection chip are respectively connected to HTX1N and HTXCN.D2P and D0P are respectively connected to the OUT1 terminals of the first protection chip and the second protection chip, D2N and D0N are respectively connected to the OUT2 terminals of the first protection chip and the second protection chip, the GND1 terminals and GND2 terminals of the first protection chip and the second protection chip are both grounded, D1P and CLKP are respectively connected to the OUT3 terminals of the first protection chip and the second protection chip, D1N and CLKN are connected to the OUT4 terminals of the first protection chip and the second protection chip, G_D2, G_D1, G_D0, G_CLK, G_DDC / CEC and 5V are all grounded, CEC is connected to HDM-HCEC, SCL is connected to HSCL, SDA is connected to HSDA, HOT_PLUG_DET is connected to HHPD, the IN1 terminals of the first protection chip and the second protection chip are respectively connected to HTX2P and HTX0P, the IN2 terminals of the first protection chip and the second protection chip are respectively connected to HTX2N and HTX0N, the IN3 terminals of the first protection chip and the second protection chip are respectively connected to HTX1P and HTXCP, and the IN4 terminals of the first protection chip and the second protection chip are respectively connected to HTX1N and HTXCN. The dual-frequency output unit further includes ESD6, ESD7, ESD8 and ESD9. ESD6 is connected to HOT_PLUG_DET, ESD7 is connected to SDA, ESD8 is connected to CEC, ESD9 is connected to SCL. The main control unit uses the ALLWinner A40I chip. HOT PLUG DET is connected to R70 and R71, and HDMI is connected to C128. The Android main control directly outputs the HDMI video signal and outputs LVDS. By cooperating with the LVDS output and the HDMI output, the breakthrough result of simultaneously outputting two videos is successfully achieved. This not only greatly expands the types of display monitors that can be connected, no longer limited to a single type, providing users with a wider selection space, but also enables the dual-screen display of completely different contents. In this way, the operation interface and the playback interface can be effectively split-screen displayed, so that the operation interface and the playback interface are presented independently. The realization of this split-screen playback greatly improves the convenience and efficiency of operation. Users can focus on operating on one screen and clearly watch the playback content on the other screen, avoiding interface confusion and interference, further enhancing the practicality and applicability of the product, and bringing convenience to users.

[0020] Each functional module is respectively connected to the main control unit to implement the corresponding functions of the mobile terminal. The power management chip is connected to the main control unit to supply power to the main control unit, the dual-frequency output unit and each functional unit.

[0021] It includes a main control unit, a plurality of functional units respectively connected to the main control unit, and an intelligent Android board output circuit.

[0022] The dual - frequency output circuit includes D2P, G_D2, D2N, D1P, G_D0, D1N, DOP, G_D0, DON, CLKP, G_CLK, CLKN, CEC, NC, SCL, SDA, G_DDC / CEC, +5V, HOT_PLUG_ DET, SHIELD1, SHIELD2, SHIELD3 and SHIELD4;

[0023] Both of the two protection circuits include IN1, IN2, GND1, IN3, IN4, OUT1, OUT2, OUT3, GND2 and OUT4.

[0024] The above - mentioned devices adopt:

[0025] AXP221 SPMIC + Codec: This is a chip integrating a power management IC (PMIC) and an audio codec, used for power management and audio processing;

[0026] SATA3.0: This is a SATA 3.0 interface for connecting a SATA hard disk or other storage devices;

[0027] USB3OTG: This is a USB 3.0 OTG (On - The - Go) interface that allows the device to be connected as a USB host or device;

[0028] USB3.HOST1: This is a USB 3.0 host interface for connecting USB devices;

[0029] Micro SD Card: This is a Micro SD card slot for inserting a Micro SD card for data storage;

[0030] RJ45: This is an RJ45 Ethernet interface for connecting to a wired network;

[0031] eNMC eMMC 169b91: This is an eMMC (embedded multimedia card) storage module for storing the operating system and applications;

[0032] DDRU96b31: This is a DDR3 SDRAM memory module for temporarily storing data and programs;

[0033] DDR396ba1: This is also a DDR3 SDRAM memory module for temporarily storing data and programs.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An output circuit of an intelligent Android board, the intelligent Android board comprises a main control unit and a plurality of functional units respectively connected to the main control unit, the plurality of functional units comprising a power management chip, a hard disk interface, a USB interface, an SD card slot, an Ethernet interface, a storage module, a memory module and a WIFI / Bluetooth module, characterized in that: The output circuit of the smart Android board includes a dual-frequency output unit; The dual-frequency output unit includes LVDS output and HDMI output, and the LVDS output and the HDMI output can be performed simultaneously; The LVDS output and the HDMI output are connected to a main control unit.

2. The output circuit of the smart Android board according to claim 1, characterized in that: The dual-frequency output unit includes a dual-frequency output circuit, a first protection circuit and a second protection circuit, and the dual-frequency output circuit is connected to the first protection circuit and the second protection circuit respectively; the first protection circuit includes a first protection chip, and the second protection circuit includes a second protection chip; the first protection chip and the second protection chip have OUT1, OUT2, OUT3, OUT4, GND1, GND2, IN1, IN2, IN3, and IN4 ports, wherein D2P and D0P are respectively connected to the OUT1 end of the first protection chip and the second protection chip, D2N and D0N are respectively connected to the OUT2 end of the first protection chip and the second protection chip, D1P and CLKP are respectively connected to the OUT3 end of the first protection chip and the second protection chip, D1N and CLKN are connected to the OUT4 end of the first protection chip and the second protection chip, G_D2, G_D1, G_D0, G_CLK, G_DDC / CEC and 5V are all grounded, the CEC is connected to HDM - HCEC, the SCL Connect HSCL, the SDA is connected to HSDA, the HOT_PLUG_DET is connected to HHPD, the IN1 end of the first protection chip and the second protection chip are connected to HTX2P and HTX0P respectively, the IN2 end of the first protection chip and the second protection chip are connected to HTX2N and HTX0N respectively, the IN3 end of the first protection chip and the second protection chip are connected to HTX1P and HTXCP respectively, and the IN4 end of the first protection chip and the second protection chip are connected to HTX1N and HTXCN respectively.

3. The output circuit of the smart Android board according to claim 2, characterized in that: D2P and D0P are connected to the OUT1 end of the first protection chip and the second protection chip respectively, D2N and D0N are connected to the OUT2 end of the first protection chip and the second protection chip respectively, the GND1 end and GND2 end of the first protection chip and the second protection chip are both grounded, D1P and CLKP are connected to the OUT3 end of the first protection chip and the second protection chip respectively, D1N and CLKN are connected to the OUT4 end of the first protection chip and the second protection chip, G_D2, G_D1, G_D0, G_CLK, G_DDC / CEC and 5V are all grounded, the CEC is connected to HDM-HCEC, the SCL is connected to HSCL, the SDA is connected to HSDA, the HOT_PLUG_ DET is connected to HHPD, the IN1 ends of the first protection chip and the second protection chip are connected to HTX2P and HTX0P respectively, the IN2 ends of the first protection chip and the second protection chip are connected to HTX2N and HTX0N respectively, the IN3 ends of the first protection chip and the second protection chip are connected to HTX1P and HTXCP respectively, and the IN4 ends of the first protection chip and the second protection chip are connected to HTX1N and HTXCN respectively.

4. The output circuit of the smart Android board according to claim 3, characterized in that: The dual-frequency output unit further includes ESD6, ESD7, ESD8 and ESD9, the ESD6 is connected to the HOT_PLUG_DET, the ESD7 is connected to the SDA, the ESD8 is connected to the CEC, and the ESD9 is connected to the SCL.

5. The output circuit of the smart Android board according to claim 1, characterized in that: The main control unit adopts A / / WinnerA40I chip.

6. The output circuit of the smart Android board according to claim 1, characterized in that: The multiple functional units include a power management chip, a hard disk interface, a USB interface, an SD card slot, an Ethernet interface, a storage module, a memory module and a WIFI / Bluetooth module. Each of the functional modules is connected to the main control unit to realize the corresponding functions of the mobile terminal.

7. The output circuit of the smart Android board according to claim 6, characterized in that: The power management chip is connected to the main control unit to supply power to the main control unit, the dual-frequency output unit and each of the functional units.

8. A smart Android board, characterized in that: It comprises a main control unit and a plurality of functional units respectively connected to the main control unit and an output circuit of a smart Android board as claimed in any one of claims 1 to 7.

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