Core processing board card for industrial control screen

Abstract

The utility model discloses a core processing board card used for an industrial control screen, which comprises a power supply circuit, an MCU circuit, a DDR3L circuit and a screen interface circuit, the power supply circuit comprises a U3 power supply circuit, a U6 power supply circuit and a U7 power supply circuit, the U3 is a DDR power supply, the U6 is a 5V voltage stabilizing circuit, the U7 is a system power supply, the MCU is a main control U1 circuit, the MCU circuit comprises a semiconductor, and a DC-DC is arranged in the semiconductor. The power supply circuit, the MCU circuit, the DDR3L circuit and the screen interface circuit of the core processing board card are used in cooperation, the speed from electrifying to entering an operation interface can be greatly increased, the time from electrifying to entering the operation interface is less than 200 ms, the reaction speed is higher when an operator operates on an industrial operation control screen, the experience feeling of the operator is better, and the operation efficiency is improved. The MCU circuit of the core processing board card adopts an HPM6800 semiconductor to support a CAN-FD interface, an Ethernet interface and a UART (Universal Asynchronous Receiver / Transmitter) interface.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial control screens, in particular to a core processing board card used for industrial control screens. Background Art

[0002] Industrial HMI (human-machine interface) refers to the interface used to operate and monitor machinery and equipment in industrial automation systems. It serves as a bridge between the operator and the control system, primarily used to display equipment status, operating parameters, and control instructions to ensure the safe, stable, and efficient operation of industrial processes. Its primary application areas include manufacturing, energy and power, transportation, and oil and gas. With the advancement of industrial automation and the popularization of the Internet of Things and big data analysis, the industrial HMI market is showing strong growth worldwide.

[0003] For example, a core processor board for industrial control with announcement number CN220795678U and announcement date 2024.04.16, a Feiteng processor is set on the core processor board, and the core processor board is also provided with memory, RGMII interface, IIC interface, GPIO interface, PCIE interface and FPGA chip; the memory is connected to the Feiteng processor, the Feiteng processor is connected to the BIOS system, solid-state drive system and FPGA chip, and the FPGA chip is used to control the power-on timing; the RGMII interface, IIC interface, GPIO interface, and PCIE interface are respectively connected to the Feiteng processor; the FPGA chip is connected to the serial port and SPI interface.

[0004] In existing technologies, industrial HMIs are primarily based on various MPU platforms that support multimedia drivers. While MPUs offer certain advantages in HMI applications, including strong computing power, mature and stable display solutions, and a robust Linux ecosystem, they inevitably suffer from some unresolved issues. The most significant is long startup time. After powering on, the MPU needs to initialize the hardware, load system memory, and establish tasks, all of which takes a significant amount of time. In reality, it typically takes tens of seconds or even minutes for the HMI to boot up and function normally. This creates an unfriendly human-computer interaction experience for operators. Furthermore, traditional industrial HMIs, which primarily use MPUs for multimedia applications, have limited PLC interface connectivity, typically RS485 or Ethernet. Support for CAN interfaces requires an external CAN interface module. Furthermore, traditional industrial HMIs require multiple PMIC power devices, which are relatively expensive. Therefore, there is an urgent need to design a core processing board for industrial control screens to address these issues. Utility Model Content

[0005] The purpose of the utility model is to provide a core processing board for an industrial control screen to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A core processing board for an industrial control screen, comprising a power supply circuit, an MCU circuit, a DDR3L circuit and a screen interface circuit. The power supply circuit includes three power supply circuits, U3, U6 and U7, wherein U3 is a DDR power supply, U6 is a 5V voltage regulator circuit, and U7 is a system power supply. The MCU is the circuit where the main control U1 is located. The MCU circuit includes an HPM6800 Pioneer Semiconductor, and a DC-DC is provided inside the HPM6800 Pioneer Semiconductor. The DDR3L circuit is the circuit where U4 is located, and the DDR3L circuit is connected to the main control U1 circuit via the DDR3 interface pin of the main control U1. The screen interface circuit is the circuit where FPC2 is located. The screen interface circuit interface is an FPC seat, and the FPC seat is connected to the MIPI pin of the main control U1.

[0008] Furthermore, the U3 provides 1.35V power for the DDR3L and MCU DDR interfaces on the core processing board, and the U6 is used to stabilize the input voltage to 5V, and U6 is powered by a 5-12V adapter or battery.

[0009] Furthermore, the U7 is used to convert the input voltage of 5V into 3.3V, and U7 provides a stable power supply for the MCU and the components on the core processing board.

[0010] Furthermore, the HPM6800 Pioneer Semiconductor of the MCU circuit is provided with CAN-FD, Ethernet and UART interfaces.

[0011] Furthermore, the DDR3L circuit is a 4Gb-DDR3L-W634GU6QB model that provides sufficient fast cache for GUI display.

[0012] Furthermore, the FPC seat of the screen interface circuit is used to access the TFT screen of the corresponding FPC connection interface, and the FPC seat is used to drive the MIPI interface screen.

[0013] In the above technical solution, the utility model provides a core processing board for an industrial control screen.

[0014] 1. The core processing board's power supply circuit, MCU circuit, DDR3L circuit, and screen interface circuit work together to significantly improve the speed from power-on to entering the operation interface. The time from power-on to entering the operation interface is less than 200ms, making the operator's operation on the industrial operation control panel (HMI) faster and providing a better operator experience.

[0015] 2. The core processing board's MCU circuit uses the HPM6800 Pioneer Semiconductor, which supports CAN FD, Ethernet, and UART interfaces. It can achieve compatibility with CAN PLCs without the need for an external CAN interface module. This solves the problem that traditional industrial HMIs, which use MPUs (core processing boards) for multimedia applications, have limited PLC interfaces (usually RS485 or Ethernet) and require an external CAN interface module to support the CAN interface.

[0016] 3. The MCU circuit of this core processing board adopts HPM6800 advanced semiconductor, which has a more competitive price. At the same time, compared with MPU or other high-performance MCUs, the MCU circuit saves the external PMIC chip, thereby saving the number of PMIC power devices used, which can reduce the cost of the core processing board. It has obvious cost advantages and is more conducive to market popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The present invention is a schematic structural diagram of a power supply circuit provided by an embodiment of a core processing board for an industrial control screen.

[0019] Figure 2 The present invention is a schematic diagram of the second structure of a power supply circuit provided by an embodiment of a core processing board for an industrial control screen.

[0020] Figure 3 The present invention provides a schematic diagram of the power supply circuit provided by a core processing board for an industrial control screen.

[0021] Figure 4 The present invention provides a schematic structural diagram of an MCU circuit for a core processing board for an industrial control screen.

[0022] Figure 5The present invention is a schematic diagram of the second structure of an MCU circuit provided in an embodiment of a core processing board card for an industrial control screen.

[0023] Figure 6 The present invention provides a schematic diagram of the structure of an MCU interface pin circuit for a core processing board for an industrial control screen.

[0024] Figure 7 The present invention is a schematic structural diagram of a DDR3L circuit provided by an embodiment of a core processing board for an industrial control screen.

[0025] Figure 8 This is a schematic diagram of the second structure of a DDR3L circuit provided by an embodiment of a core processing board for an industrial control screen of the present invention.

[0026] Figure 9 The present invention is a schematic diagram of the second structure of the MCU interface pin circuit provided by an embodiment of a core processing board for an industrial control screen.

[0027] Figure 10 The present invention is a schematic diagram of a screen interface circuit structure provided by an embodiment of a core processing board card for an industrial control screen. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-10 As shown, an embodiment of the present invention provides a core processing board for an industrial control screen, including a power supply circuit, an MCU circuit, a DDR3L circuit and a screen interface circuit. The power supply circuit includes three power supply circuits of U3, U6 and U7, U3 is a DDR power supply, U6 is a 5V voltage regulator circuit, U7 is a system power supply, the MCU is the circuit where the main control U1 is located, the MCU circuit includes HPM6800 Pioneer Semiconductor (RISC-V—MCU—HPM6800), and the HPM6800 Pioneer Semiconductor is internally provided with a DC-DC, the DDR3L circuit is the circuit where U4 is located, and the DDR3L circuit is connected to the main control U1 circuit through the DDR3 interface pin of the main control U1, the screen interface circuit is the circuit where FPC2 is located, the screen interface circuit interface is an FPC seat, and the FPC seat is connected to the MIPI pin of the main control U1.

[0030] The utility model provides a core processing board for an industrial control screen, comprising a power supply circuit, an MCU circuit, a DDR3L circuit and a screen interface circuit. The power supply circuit comprises three power supply circuits of U3, U6 and U7, wherein U3 is a DDR power supply, U6 is a 5V voltage regulator circuit, and U7 is a system power supply. The MCU is the circuit where the main control U1 is located, and the MCU circuit comprises an HPM6800 pioneer semiconductor, and a DC-DC is provided inside the HPM6800 pioneer semiconductor. The DDR3L circuit is the circuit where U4 is located, and the DDR3L circuit is connected to the main control U1 circuit through the DDR3 interface pin of the main control U1. The screen interface circuit is the circuit where FPC2 is located, and the screen interface circuit interface is an FPC seat, and the FPC seat is connected to the MIPI pin of the main control U1. The MCU circuit, the DDR3L circuit and the screen interface circuit are used together to greatly improve the speed from powering on to entering the operation interface, so that the operator can operate faster and have a better experience on the industrial operation control screen.

[0031] By setting: the circuit of the core processing board can greatly improve the speed from power-on to entering the operation interface. The time from power-on to entering the operation interface is less than 200ms, which makes the operator respond faster when operating on the industrial operation control screen, thereby giving the operator a better experience.

[0032] In one embodiment provided by the present invention, Figure 1 、 2 and Figure 3 As shown, U3 provides 1.35V power for the DDR3L and MCU DDR interfaces on the core processing board, and U6 is used to stabilize the input voltage to 5V, and U6 is powered by a 5-12V adapter or battery.

[0033] In another embodiment provided by the present invention, Figure 1 、 2 and Figure 3 As shown, U7 is used to convert the input voltage of 5V to 3.3V, and U7 provides a stable power supply for the MCU and the devices on the core processing board.

[0034] In another embodiment provided by the present invention, the MCU circuit supports DDR3 and MIPI interfaces, and the MCU circuit supports LVGL and AWTK third-party GUI open source libraries.

[0035] In one embodiment provided by the present invention, Figure 4 and Figure 5As shown in the figure, the HPM6800 MCU circuit supports CAN-FD, Ethernet and UART interfaces, and the HPM6800 is compatible with most PLC communications. When an external CAN interface module is required, because the HPM6800 supports the CAN-FD interface, compatibility with CAN-PLC can be achieved without an external CAN interface module.

[0036] In another embodiment provided by the present invention, Figure 6 、 7 and Figure 8 As shown, the DDR3L circuit is 4Gb-DDR3L-W634GU6QB, and the DDR3L circuit provides sufficient fast cache for GUI display, thereby increasing efficiency during use.

[0037] In another embodiment provided by the present invention, Figure 9 and Figure 10 As shown, the FPC seat of the screen interface circuit is used to access the TFT screen of the corresponding FPC connection interface, and the FPC seat is used to drive the MIPI interface screen.

[0038] Working principle: The MIPI interface screen is driven by connecting the MIPI pins of the main control U1 through the FPC seat. U3 can provide 1.35V power to the DDR3L on the core processing board and the DDR interface of the MCU. U7 can provide stable power to the devices on the MCU and the core processing board. The MCU circuit, DDR3L circuit and screen interface circuit set in the core processing board of the industrial control screen can greatly improve the speed from power-on to entering the operation interface. The time from power-on to entering the operation interface is less than 200ms, which makes the operator have a better experience when operating on the industrial operation control screen. In addition, the MCU circuit of the core processing board adopts the semiconductor that supports CAN-FD, Ethernet and UART interfaces, and CAN can be realized without an external CAN interface module. PLC compatibility avoids the problem of traditional industrial HMIs that use MPUs for multimedia applications, have limited PLC interfaces, and require external CAN interface modules when supporting CAN interfaces. Because the MCU circuit uses advanced semiconductors, it is also more cost-effective. Compared with MPUs or other high-performance MCUs, MCUs save external PMIC chips, thereby reducing the number of PMIC power devices used, reducing the cost of core processing boards, and have obvious cost advantages.

[0039] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A core processing board for an industrial control screen, comprising a power supply circuit, an MCU circuit, a DDR3L circuit, and a screen interface circuit, characterized in that: The power supply circuit includes three power supply circuits of U3, U6 and U7, wherein U3 is a DDR power supply, U6 is a 5V voltage regulator circuit, and U7 is a system power supply. The MCU is the circuit where the main control U1 is located. The MCU circuit includes the HPM6800 Pioneer Semiconductor, and the HPM6800 Pioneer Semiconductor is internally provided with a DC-DC. The DDR3L circuit is the circuit where U4 is located, and the DDR3L circuit is connected to the main control U1 circuit through the DDR3 interface pin of the main control U1. The screen interface circuit is the circuit where FPC2 is located, and the screen interface circuit interface is an FPC seat, and the FPC seat is connected to the MIPI pin of the main control U1.

2. The core processing board for an industrial control screen according to claim 1, characterized in that: The U3 provides 1.35V power for the DDR3L and MCU DDR interfaces on the core processing board. The U6 is used to stabilize the input voltage to 5V, and U6 is powered by a 5-12V adapter or battery.

3. The core processing board for an industrial control screen according to claim 2, characterized in that: The U7 is used to convert the input voltage of 5V to 3.3V, and U7 provides a stable power supply for the MCU and the components on the core processing board.

4. The core processing board for an industrial control screen according to claim 3, characterized in that: The HPM6800 Pioneer Semiconductor of the MCU circuit is equipped with CAN-FD, Ethernet and UART interfaces.

5. The core processing board for an industrial control screen according to claim 4, characterized in that: The DDR3L circuit is a 4Gb-DDR3L-W634GU6QB model that provides sufficient fast buffer memory for GUI display.

6. The core processing board for an industrial control screen according to claim 5, characterized in that: The FPC seat of the screen interface circuit is used to access the TFT screen of the corresponding FPC connection interface, and the FPC seat is used to drive the MIPI interface screen.

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