Multifunctional industrial control board

Abstract

The utility model discloses a multifunctional industrial control board, comprising a CPU, the video signal output of the CPU is respectively connected with an LVDS screen interface and an HDMI screen interface through an MIPI-to-HDMI / LVDS chip, the video signal output of the CPU is also connected with a multipath single-pole double-throw switch chip, the multipath single-pole double-throw switch chip is connected with the LVDS screen interface through the MIPI-to-LVDS chip, and the multipath single-pole double-throw switch chip is connected with the HDMI screen interface through the HDMI-to-LVDS chip. And the multi-path single-pole double-throw switch chip is also connected with the MIPI screen interface. The mobile platform has the beneficial effects that various types of screen display can be supported, and a basis is provided for the application of the mobile platform in the aspect of intelligent industrial control.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial control panel improvement, in particular to a multifunctional industrial control panel. Background Art

[0002] With the rapid development of the Internet of Things (IoT), intelligent industrial control boards have been widely used in payment processing, vending machines, smart touch screens, facial recognition, and other fields. Traditional industrial control boards, while offering advantages such as a rich interface and high versatility, also suffer from high costs and outdated technology. Mobile handheld terminal platforms, on the other hand, are rapidly developing and represent the technological culmination of the modern semiconductor industry. However, their interfaces and functions are relatively limited, raising the question of how to apply these mobile platforms to intelligent industrial control.

[0003] Applying mobile platforms to intelligent industrial control requires addressing the existing monolithic interface limitations of existing mobile platforms. While mobile phones may only require a single MIPI screen, industrial control boards require a wide range of interfaces, particularly screens that support multiple display formats, including LVDS, HDMI, and MIPI. Utility Model Content

[0004] The purpose of this utility model is to solve the above problems and to design a multifunctional industrial control board.

[0005] A multifunctional industrial control board includes a CPU. The video signal output of the CPU is connected to an LVDS screen interface and an HDMI screen interface respectively through a MIPI to HDMI / LVDS chip. The video signal output of the CPU is also connected to a multi-channel single-pole double-throw switch chip. The multi-channel single-pole double-throw switch chip is connected to the LVDS screen interface through a MIPI to LVDS chip. The multi-channel single-pole double-throw switch chip is also connected to the MIPI screen interface.

[0006] The LVDS screen interface is a 30-pin pin header.

[0007] The MIPI screen interface is an FPC socket.

[0008] The HDMI screen interface is an HDMI female socket.

[0009] The CPU is Qualcomm's MSM8953 chip.

[0010] Beneficial effects

[0011] A multifunctional industrial control board manufactured using the technical solution of the utility model has the following advantages:

[0012] The structural design of this technical solution enables the mobile platform to support multiple display solutions such as MIPI, LVDS, and HDMI, and can be switched with a switch, which can better meet the needs of industrial production for intelligent industrial control panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural block diagram of a multifunctional industrial control board described in the utility model;

[0014] In the figure, 1. CPU; 2. Multi-channel single-pole double-throw switch chip; 3. MIPI to LVDS chip; 4. LVDS screen interface; 5. MIPI screen interface; 6. MIPI to HDMI / LVDS chip; 7. HDMI screen interface. DETAILED DESCRIPTION

[0015] The present invention will be described in detail below with reference to the accompanying drawings. Figure 1 As shown;

[0016] During the implementation of the technical solution of the present application, CPU1 supports two groups of DSI (Display Serial Interface) video signal outputs. In order to enable the industrial control board to support more types of screens, the technical solution of the present application is to connect one video signal to a multi-channel single-pole double-throw switch chip 2. The multi-channel single-pole double-throw switch chip switches the output signal by opening or closing. When the multi-channel single-pole double-throw switch chip is turned on, the CPU converts the DSI signal into an LVDS signal through the MIPI to LVDS chip 3 and transmits it to the LVDS screen interface 4. This part of the MIPI to LVDS chip mainly consists of a differential receiving module of the DSI signal receiving unit and a low-power single-ended receiving module, a protocol converter, and an LVDS differential signal transmitter. When the multi-channel single-pole double-throw switch chip is turned off, the CPU sends a MIPI signal to the MIPI screen interface 5.

[0017] The other video signal of the CPU is converted from DSI to HDMI signal and LVDS signal through the MIPI to HDMI / LVDS chip 6, and then the LVDS signal and HDMI signal are sent to the LVDS screen interface and HDMI screen interface 7 respectively. Since the HDMI signal includes both video signal and audio signal, the audio signal here is transferred out through the I2S signal of the mobile platform. This design enables the mobile phone platform that originally only supported 2-way MIPI screen display to now support LVDS and MIPI dual-screen display or LVDS and HDMI dual-screen display. It can support up to 3 screens to display at the same time and support dual-screen different display. For the backlight interface of the LVDS screen, the PWM signal and high and low levels are output through the CPU pin connected to the main screen backlight interface and the sub-screen backlight interface to control the brightness of the display.

[0018] In terms of audio, the audio signal output from the CPU's speaker is connected to the speaker output interface through an audio power amplifier circuit, enabling it to support dual 8Ω 5W speaker outputs. The CPU's headphone output signal is connected to the headphone socket. The CPU's MIC input signal is also connected to the MIC socket.

[0019] The industrial control board described in this application is installed in a vending machine, with external LVDS and HDMI connections to support single or dual-screen displays. The touchscreen and facial recognition camera are connected to a USB port, while controls for retrieval and other functions within the vending machine are connected to an RS232 / RS485 serial port. Other functions, such as the speaker, antenna, SIM card, and RTC button battery, are connected to corresponding interfaces. This creates a fully-fledged smart vending machine.

[0020] The electronic devices used in this technical solution are all existing products. The technical solution of this application has no special requirements or changes to the structures of the above-mentioned electronic devices. The above-mentioned electronic devices are all conventional electronic devices.

[0021] During the implementation of this technical solution, personnel in this field need to connect all electrical components in this case to their corresponding power supplies through wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between each electrical component is completed in the order of working. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0022] 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 "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0023] The above technical solutions only reflect the preferred technical solutions of the present utility model. Any changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present utility model and fall within the scope of protection of the present utility model.

Claims

1. A multifunctional industrial control board, comprising a CPU (1), characterized in that: The video signal output of the CPU is connected to a multi-channel single-pole double-throw switch chip (2), and the multi-channel single-pole double-throw switch chip switches between on and off states under the control of the CPU. The multi-channel single-pole double-throw switch chip is connected to an LVDS screen interface (4) via a MIPI to LVDS chip (3), and the multi-channel single-pole double-throw switch chip is also connected to a MIPI screen interface (5). The video signal output of the CPU is also connected to an LVDS screen interface and an HDMI screen interface (7) respectively via a MIPI to HDMI / LVDS chip (6); The LVDS screen interface is a 30PIN pin header, the MIPI screen interface is an FPC header, the HDMI screen interface is an HDMI female connector, and the CPU is equipped with Qualcomm's MSM8953 chip.

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