Multifunctional and Reusable Motherboard and Industrial Control Computer

Abstract

This application relates to a multi-functional and multiplexed main board and an industrial control computer. In terms of the main board design, by stacking network interfaces and USB interfaces in the layout space on the substrate, and stacking HDMI interfaces and VGA interfaces, the maximum utilization of the central processing unit function in the small-size substrate space is realized, which is beneficial to implementing more functions on the small-size substrate, realizing the multi-functional multiplexing of the central processing unit, and thus facilitating the miniaturized design of the industrial control computer when implementing multiple functions. That is, the main board provided by this application realizes the maximum utilization of the small-size substrate space by stacking interfaces under the substrate layout space, designing a function check pin to detect the interface and the connection status of external devices, and automatically selecting and outputting corresponding function signals through BIOS status check, so as to meet the function output of more scenario applications and enrich the selection.

Description

Technical Field

[0001] The present application relates to the technical field of industrial control computers, and particularly to a main board and an industrial control computer with multi-function multiplexing. Background Art

[0002] Industrial control computers based on Intel kaby Lake and the Windows system have been widely used in the market. With the development of computer miniaturization, new requirements have been put forward for the design of industrial control computers. Summary of the Invention

[0003] Based on this, it is necessary to provide a main board and an industrial control computer that can achieve multi-function multiplexing in a small size.

[0004] In a first aspect, a main board with multi-function multiplexing is provided, including: a substrate, a central processing unit, and a network interface, a USB interface, an HDMI interface, and a VGA interface that are respectively connected to the central processing unit;

[0005] Wherein, the central processing unit is located on the substrate, and the network interface and the USB interface are stacked and placed at the same board edge position of the substrate; the HDMI interface and the VGA interface are stacked and placed at the same board edge position of the substrate.

[0006] In one embodiment, the network interface, the USB interface, the HDMI interface, and the VGA interface are all arranged on the same board edge side of the substrate.

[0007] In one embodiment, the network interface is an RJ45 interface.

[0008] In one embodiment, the USB interface is a double-layer USB interface.

[0009] In one embodiment, multiple general input / output pins of the central processing unit are respectively connected to the network interface, the USB interface, the HDMI interface, and the VGA interface. The industrial control computer with multi-function multiplexing further includes:

[0010] A BIOS chip, and the BIOS chip is connected to the central processing unit.

[0011] In one embodiment, the central processing unit has function check pins, and the central processing unit is connected to the BIOS chip through the function check pins.

[0012] In one embodiment, the network interface has at least one set of LED positive pins and LED negative pins, and each set of LED positive pins and LED negative pins is used to connect the positive pin and the negative pin of an LED lamp;

[0013] Among them, the negative electrode pin of the LED is correspondingly connected to the general-purpose input / output pin of the central processing unit. When the network interface is connected to the network cable, the negative electrode pin of the LED has a voltage.

[0014] In one embodiment, the main board further includes:

[0015] A network controller chip, where multiple first ends of the network controller chip are respectively correspondingly connected to multiple ends of the network interface, and multiple second ends of the network control chip are respectively correspondingly connected to multiple general-purpose input / output ends of the central processing unit.

[0016] In one embodiment, the main board further includes:

[0017] A voltage stabilizing power supply circuit, which is respectively correspondingly connected to the network interface, the USB interface, the HDMI interface, and the VGA interface.

[0018] In a second aspect, an industrial control computer is provided, including the above-mentioned main board with multi-functional multiplexing.

[0019] For the above-mentioned main board with multi-functional multiplexing and the industrial control computer, by stacking the network interface and the USB interface in the layout space on the substrate, and stacking the HDMI interface and the VGA interface, the maximum utilization of the functions of the central processing unit in the small-size substrate space is realized, which is beneficial to realizing more functions on the small-size substrate, realizing the multi-functional multiplexing of the central processing unit, and thus facilitating the miniaturized design of the industrial control computer when realizing multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 One of the schematic structural diagrams of the main board with multi-functional multiplexing for one or more embodiments;

[0022] Figure 2 Another schematic structural diagram of the main board with multi-functional multiplexing for one or more embodiments;

[0023] Figure 3 For Figure 2 The partial enlarged schematic diagram of area A in

[0024] Figure 4 For Figure 2 The partial enlarged schematic diagram of area B in

[0025] Figure 5 Pin diagram of the RJ45 network interface for one or more embodiments;

[0026] Figure 6 Pin diagram of the USB interface for one or more embodiments;

[0027] Figure 7 Pin diagram of the HDMI interface for one or more embodiments;

[0028] Figure 8 Pin diagram of the VGA interface for one or more embodiments. Detailed implementation manners

[0029] For ease of understanding this application, the following will describe this application more comprehensively with reference to the relevant drawings. Embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of this application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0031] It can be understood that "connection" in the following embodiments, if there is an electrical signal or data transfer between the connected circuits, modules, units, etc., should be understood as "electrical connection", "communication connection", etc.

[0032] It can be understood that "at least one" means one or more, and "a plurality" means two or more. "At least part of an element" means part or all of the element.

[0033] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0034] The multi-functional and multiplex mainboard provided by the embodiments of the present application is applied to industrial control computers. The multi-functional and multiplex mainboard can be based on Intel Kaby Lake and the Windows system, and combined with the X86 computer architecture and the AMI bios software development platform to develop an industrial control computer mainboard that supports the multi-functional multiplex of the board.

[0035] The embodiments of the present application provide a multi-functional and multiplex mainboard, as Figures 1-4 shown. The multi-functional and multiplex mainboard includes: a substrate 10, a central processing unit 20, and a network interface 30, a USB interface 40, an HDMI interface 50, and a VGA interface 60 that are respectively connected to the central processing unit 20;

[0036] Among them, the central processing unit 20 is located on the substrate 10, and the network interface 30 and the USB interface 40 are stacked and placed at the same board edge position of the substrate 10; the HDMI interface 50 and the VGA interface 60 are stacked and placed at the same board edge position of the substrate 10.

[0037] Among them, the substrate 10 is a support for electronic components and also a carrier for the electrical connection of electronic components. For example, the substrate 10 can be a PCB (Printed Circuit Board) board. Electrical components can be installed on the substrate 10 by means of pins, welding, etc.

[0038] It should be understood that the central processing unit 20 (CPU, Central Processing Unit) is connected to the network interface 30, the USB interface 40, the HDMI interface 50, and the VGA interface 60 through some intermediate devices to achieve functions. The central processing unit 20 is usually connected to these interfaces through a controller or other dedicated chips on the substrate 10 (such as a dedicated chip for the network interface 30, a dedicated DP-to-VGA chip for the VGA interface 60, etc.). The central processing unit 20 coordinates and processes data from these interfaces to achieve corresponding functions. The data processing ability of the CPU can support data streams from the network interface 30, USB devices, and display interfaces (including the HDMI interface 50 and the VGA interface 60).

[0039] The CPU and BIOS cooperate to achieve interface recognition and data stream processing. When starting up, the BIOS will detect the hardware on the motherboard, including the network interface card (NIC) 30, USB controller, display controller, etc. Then it loads the necessary driver programs to initialize these hardware devices so that they can work properly. Thus, the network interface card 30 drives the operation of the network interface 30, the USB controller controls the operation of the USB interface 40, and the display controller controls the operation of the HDMI interface 50 and VGA interface 60. Among them, the CPU communicates with network devices by sending and receiving data packets at the physical layer through network interfaces 30 such as the RJ45 interface. The USB controller is responsible for handling data transmission and power management of the USB devices connected to the USB interface 40. When a USB device is connected to the industrial control computer, the USB controller will identify the USB device and communicate with the CPU to complete data transmission. The display controller is responsible for handling display output. When the CPU needs to send image data to the display, the data is converted into an appropriate format by the display controller and transmitted to the display through the HDMI or VGA interface 60.

[0040] Specifically, for the multifunctional and multiplexed motherboard provided by the embodiments of the present application, by stacking the network interface 30 and USB interface 40 in the layout space on the substrate 10, and stacking the HDMI interface 50 and VGA interface 60, the maximum utilization of the central processing unit 20 function in the small-size substrate 10 space is achieved, which is beneficial to implementing more functions on the small-size substrate 10, realizing the multifunctional multiplexing of the central processing unit 20, and thus facilitating the miniaturized design of the industrial control computer when implementing multiple functions.

[0041] In one embodiment, the multifunctional and multiplexed motherboard provided by the embodiments of the present application can achieve the maximum utilization of the 3.5-inch board PCB space, meet the functional outputs of more scenario applications, and enrich the choices.

[0042] In one of the embodiments, as Figure 2 shown, the network interface 30, USB interface 40, HDMI interface 50, and VGA interface 60 are all arranged on the same board edge side of the substrate 10. By arranging the network interface 30, USB interface 40, HDMI interface 50, and VGA interface 60 on the same board edge side, the board edge layout space on the remaining sides of the substrate 10 can be saved. In addition, it is also beneficial for centralized wiring when the network interface 30, USB interface 40, HDMI interface 50, and VGA interface 60 are connected to external devices, ensuring that there is no need to open too many holes on the walls of other sides of the industrial control computer.

[0043] In one of the embodiments, as Figure 5As shown, the network interface 30 is an RJ45 interface. By inserting a network cable through the RJ45 interface, the industrial control computer can be connected to network devices such as routers and switches to access the local area network or the Internet, and perform operations such as data transmission, web browsing, and file downloading. The RJ45 interface supports multiple network transmission speeds, such as the common 10M, 100M, 1000M, or even higher transmission rates. This can meet the requirements of different network applications for data transmission speed and ensure the smooth operation of applications with high bandwidth requirements such as video conferencing, online games, and big data transmission.

[0044] Such as Figure 5 As shown, the RJ45 interface can have the following pins:

[0045] VCC (positive power supply), GND (negative power supply), TD1+, TD1-, TD2+, TD2-, TD3+, TD3-, TD4+, TD4-, etc. Among them, the VCC pin is grounded through a capacitor. TD1+, TD1-, TD2+, TD2-, TD3+, TD3-, TD4+, TD4- are all connected to the network controller chip to achieve network access and function realization.

[0046] In one embodiment, such as Figure 6 As shown, the USB interface 40 is a double-layer USB interface. For example, it can be a double-layer USB interface of USB3.0. Its pin layout can be as Figure 6 shown.

[0047] In one embodiment, the HDMI interface 50 can be as Figure 7 shown. The HDMI_DAC_5V pin is used to access a 5V voltage, and the GND pin is grounded. In the figure, pins such as "DV1_TMDS_D2+", "DV1_TMDS_D2-", "DV1_TMDS_D1+", "DV1_TMDS_D1-", "DV1_TMDS_D0+", "DV1_TMDS_D0-", "DV1_TMDS_TXC+", "DV1_TMDS_TXC-" are used to transmit TMDS (Transition Minimized Differential Signaling) data. The DV1_TMDS_DDCCLK pin is used to transmit the Display Data Channel (DDC) clock, and the DV1_TMDS_DDCDAT pin is used to transmit data signals. HPD_DVM is a Hot-Plug Detection pin used to detect the connection and disconnection status of HDMI devices. Among them, the HPD_DVM pin can be connected to the central processing unit 20 so that the BIOS can know whether an HDMI device is connected to the HDMI interface 50 by reading the CPU pin.

[0048] In one embodiment, the VGA interface 60 may be as Figure 8 shown.

[0049] In one of the embodiments, a plurality of general-purpose input / output pins of the central processing unit 20 are respectively connected to the network interface 30, the USB interface 40, the HDMI interface 50, and the VGA interface 60. The industrial control computer with multi-functional multiplexing further includes: a BIOS chip, and the BIOS chip is connected to the central processing unit 20.

[0050] By multiplexing the general-purpose input / output pins of the central processing unit 20, the need for additional dedicated chips is reduced, and the hardware cost and the complexity of the circuit board are lowered. For example, one pin can be used as a network data transmission pin, a USB data pin, etc. respectively in different working modes, improving the utilization rate of hardware resources. This enables the industrial control computer to integrate multiple common interfaces within a compact hardware architecture, facilitating system integration in industrial control and other scenarios, realizing intelligent control and data processing of devices, and meeting the requirements of different devices for different interfaces at the same time.

[0051] In one of the embodiments, the central processing unit 20 has a function check pin, and the central processing unit 20 is connected to the BIOS chip through the function check pin. By detecting with the designed function check pin and automatically selecting and outputting corresponding function signals through BIOS check status, the ability of the CPU is maximally utilized on a small-sized motherboard to achieve multi-functional multiplexing.

[0052] In one of the embodiments, the network interface 30 has at least one set of LED positive pins and LED negative pins, and each set of LED positive pins and LED negative pins is used to connect the positive pin and the negative pin of an LED lamp;

[0053] Among them, the LED negative pin is correspondingly connected to the general-purpose input / output pin of the central processing unit 20. When the network interface 30 accesses a network cable, the LED negative pin has a voltage.

[0054] Once the insertion of the network cable is detected, the network interface 30 generates a voltage signal through an internal circuit. This voltage signal is transmitted to the line connected to the LED negative pin, so that the LED negative pin obtains a voltage. The BIOS reads the pins of the central processing unit 20 and identifies whether there is a network communication requirement according to the network interface LED status information fed back by the central processing unit 20. If so, the BIOS and the central processing unit 20 cooperate to implement the network function. That is, for the motherboard provided by the embodiments of the present application, by directly or indirectly connecting the LED negative pin to the central processing unit 20, the BIOS can realize the function switching of the network interface 30 by reading the pins.

[0055] In one embodiment, the main board further includes: a network controller chip (not shown), a plurality of first ends of the network controller chip are respectively connected to a plurality of ends of the network interface 30, and a plurality of second ends of the network control chip are respectively connected to a plurality of general-purpose input / output ends of the central processing unit 20. In one embodiment, the network controller chip can be a chip of the RTL111H series.

[0056] In one embodiment, the main board further includes: a voltage stabilizing power supply circuit (not shown), the voltage stabilizing power supply circuit is respectively connected to the network interface 30, the USB interface 40, the HDMI interface 50, and the VGA interface 60.

[0057] The voltage stabilizing power supply circuit is used to provide a stable voltage for the network interface 30, the USB interface, the HDMI interface, and the VGA interface. In application scenarios with high stability requirements such as industrial control and servers, this voltage stabilizing power supply design can ensure the long-term stable operation of the industrial control computer and reduce the risk of data loss or device damage caused by power fluctuations.

[0058] In one embodiment, the main board further includes: an LVDS (Low-Voltage Differential Signaling) interface (not shown), which is provided on the substrate 10, and the LVDS interface is connected to the central processing unit 20.

[0059] Compared with traditional single-ended signal transmission, when there is electromagnetic interference in the outside world, the interference on the two lines of LVDS is basically the same, and after subtraction at the receiving end, the interference can be largely cancelled, thus ensuring the integrity and accuracy of the signal. The LVDS interface usually consists of multiple differential signal pairs, and each differential signal pair includes a positive signal pin (such as LVDS+) and a negative signal pin (such as LVDS-). In addition, it may also include a clock signal pin for synchronizing data transmission. These pins are generally arranged on the interface and are connected to external devices through a ribbon cable or a special cable. The central processing unit 20 can send the processed data through the LVDS interface or receive data from external devices for processing.

[0060] The main board provided by the embodiments of the present application maximizes the utilization of the PCB space of the 3.5-inch board by stacking the PCB layout space and designing the detection of functional PIN pins, and automatically selects and outputs the corresponding functional signals by checking the status through the BIOS, so as to meet the functional outputs of more scenario applications and enrich the selection. The display output supports VGA, HDMI, and LVDS, etc., and the M.2 KEY-M and M.2 KEY-E expansion functions support the rapid startup of the NVME system disk, which can meet the current market demands and has a wide range of application scenarios.

[0061] By integrating interfaces with different functions at the same position on the substrate 10, such as the USB interface 40 and the network interface 30, the HDMI interface 50 and the VGA interface 60, and automatically switching the signals that the corresponding functional connectors should output by reading and checking the pin information through the BIOS, the maximum utilization of the limited space of the substrate 10 is achieved.

[0062] In one embodiment, the motherboard provided by the embodiments of the present application supports an optional design of 2 * RS232 and 6 * RS232 ports. Users can select a 2-way RS232 port design or a 6-way RS232 port design according to interface requirements, which is convenient for maximizing the cost control of the motherboard while realizing multi-functional multiplexing.

[0063] In one embodiment, the motherboard provided by the embodiments of the present application supports a maximum of 6-way RS232 serial port design, with strong applicability and high expandability. Users can externally connect RS232 devices for serial communication according to actual needs.

[0064] In one embodiment, the motherboard adopts a wide-temperature design and operates within a temperature range of -20°C to +65°C.

[0065] In one embodiment, the BIOS chip is an AMI BIOS, which supports write protection. It enables intelligent identification of power-on startup, timed startup, watchdog reset, and remote power-on / off devices.

[0066] In one embodiment, an industrial control computer is provided, including the above-mentioned motherboard with multi-functional multiplexing.

[0067] The industrial control computer equipped with the above-mentioned motherboard has the beneficial effects in the above-mentioned motherboard embodiments and will not be elaborated here.

[0068] In the description of this specification, the descriptions referring to terms such as "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0069] The technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0070] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A multifunctional multiplexed motherboard, characterized in that: include: A substrate, a central processing unit, and a network interface, a USB interface, an HDMI interface and a VGA interface respectively connected to the central processing unit; Wherein, the central processing unit is located on the substrate, and the network interface and the USB interface are stacked and placed at the same edge of the substrate; the HDMI interface and the VGA interface are stacked and placed at the same edge of the substrate; A BIOS chip, wherein the BIOS chip is connected to the central processing unit, the central processing unit has a function check pin, and the central processing unit is connected to the BIOS chip via the function check pin; The network interface has at least one set of LED positive pins and LED negative pins, and each set of LED positive pins and LED negative pins is used to connect the positive pin and negative pin of an LED lamp; Wherein, the LED cathode pin is correspondingly connected to the general input and output pin of the central processing unit, and when the network interface is connected to the network cable, the LED cathode pin has voltage; The BIOS chip reads the pins of the central processor and identifies whether there is a network communication requirement based on the network interface LED status information fed back by the central processor. If so, the BIOS and the central processor cooperate to switch the network interface function.

2. The multifunctional multiplexed mainboard according to claim 1, characterized in that: The network interface, the USB interface, the HDMI interface and the VGA interface are all arranged on the same board side of the substrate.

3. The multifunctional multiplexed mainboard according to claim 1, characterized in that: The network interface is an RJ45 interface.

4. The multifunctional multiplexed mainboard according to claim 1, characterized in that: The USB interface is a double-layer USB interface.

5. The multifunctional multiplexed mainboard according to claim 1, characterized in that: The plurality of general purpose input and output pins of the central processing unit are respectively connected to the network interface, the USB interface, the HDMI interface and the VGA interface.

6. The multifunctional multiplexed mainboard according to any one of claims 1 to 5, characterized in that: The mainboard also includes: A network controller chip, wherein the plurality of first ends of the network controller chip are respectively connected to the plurality of ends of the network interface, and the plurality of second ends of the network controller chip are respectively connected to the plurality of general purpose input and output ends of the central processing unit.

7. The multifunctional multiplexed mainboard according to any one of claims 1 to 5, characterized in that: The mainboard also includes: A voltage-stabilized power supply circuit is respectively connected to the network interface, the USB interface, the HDMI interface and the VGA interface.

8. An industrial control computer, characterized in that: Comprising a multifunctional multiplexed mainboard as described in any one of claims 1-7.

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