Multifunctional reusable mainboard and industrial control computer

Abstract

According to the multifunctional multiplexing mainboard and the industrial personal computer, in the aspect of mainboard design, a network interface, a USB interface, an HDMI interface and a VGA interface are stacked in a layout space on a substrate, so that the function of a central processing unit in the space of the small-size substrate is utilized to the maximum extent, more functions can be achieved on the small-size substrate, and the cost is reduced. The multifunctional multiplexing of the central processing unit is realized, so that the miniaturization design of the industrial personal computer is realized under the condition of realizing multiple functions. According to the mainboard provided by the invention, the interface is stacked in the layout space of the substrate, the connection condition of the interface and the external equipment is detected by designing the function check pin, and the corresponding function signal is automatically selected and output through the BIOS check state, so that the maximum utilization of the space of the small-size substrate is realized, the function output of more scene applications is met, and the choices are enriched.

Description

Technical Field

[0001] The present application relates to the technical field of industrial control computers, and in particular to a multifunctional multiplexed mainboard and an industrial control computer. Background Art

[0002] Industrial control computers based on Intel Kaby Lake and Windows systems have been widely used in the market. However, with the miniaturization of computers, 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 motherboard and industrial control computer that can realize multi-function reuse in a small size.

[0004] In a first aspect, a multifunctional multiplexed mainboard is provided, comprising: 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;

[0005] 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.

[0006] In one embodiment, the network interface, the USB interface, the HDMI interface and the VGA interface are all arranged on the same 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, a plurality of general purpose input and output pins of the central processing unit are respectively connected to a network interface, a USB interface, an HDMI interface, and a VGA interface, and the multi-function multiplexed industrial control computer further comprises:

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

[0011] In one embodiment, 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.

[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 LED cathode pin is connected to the general input and output pin of the central processing unit correspondingly. When the network interface is connected to the network cable, the LED cathode pin has voltage.

[0014] In one embodiment, the mainboard further includes:

[0015] A network controller chip, wherein a plurality of first ends of the network controller chip are respectively connected to a plurality of ends of the network interface, and a plurality of second ends of the network controller chip are respectively connected to a plurality of general purpose input and output ends of the central processing unit.

[0016] In one embodiment, the mainboard further includes:

[0017] The voltage-stabilized power supply circuit is respectively 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, comprising the multi-functional multiplexed mainboard.

[0019] The above-mentioned multifunctional reused motherboard and industrial control computer achieve maximum utilization of the central processing unit function on a small-size substrate space by stacking the network interface and USB interface, as well as stacking the HDMI interface and VGA interface in the layout space on the substrate, which is conducive to realizing more functions on a small-size substrate and realizing multifunctional reuse of the central processing unit, thereby facilitating the miniaturization design of the industrial control computer while realizing multifunctionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 One of the structural schematic diagrams of a multi-function multiplexed mainboard of one or more embodiments;

[0022] Figure 2 The second structural diagram of the multi-function multiplexed mainboard of one or more embodiments;

[0023] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A area;

[0024] Figure 4 for Figure 2 A partial enlarged schematic diagram of the middle B area;

[0025] Figure 5 A pin diagram of an RJ45 network interface of one or more embodiments;

[0026] Figure 6 A pin diagram of a USB interface of one or more embodiments;

[0027] Figure 7 A pin diagram of an HDMI interface according to one or more embodiments;

[0028] Figure 8 A pin diagram of a VGA interface according to one or more embodiments. DETAILED DESCRIPTION

[0029] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

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

[0031] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

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

[0033] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of 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 relevant listed items.

[0034] The multifunctional reused motherboard provided in the embodiment of the present application is applied to industrial control computers. The multifunctional reused motherboard can be an industrial control computer motherboard that supports multifunctional reuse of boards, developed based on Intel kaby Lake and windows system, combined with X86 computer architecture and AMI bios software development platform.

[0035] The present application embodiment provides a multi-functional multiplexed motherboard, such as Figure 1-Figure 4 As shown, the multi-function multiplexed 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 respectively connected to the central processing unit 20;

[0036] 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 edge of the substrate 10 ; the HDMI interface 50 and the VGA interface 60 are stacked and placed at the same edge of the substrate 10 .

[0037] The substrate 10 is a support for electronic components and a carrier for electrical connection of electronic components. For example, the substrate 10 may be a PCB (Printed Circuit Board). The electrical components may be mounted on the substrate 10 by means of pin insertion, welding, etc.

[0038] It should be understood that the central processing unit 20 (CPU) is connected to the network interface 30, USB interface 40, HDMI interface 50 and 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 chip dedicated to the network interface 30, a DP to VGA chip dedicated to the VGA interface 60, etc.), and the central processing unit 20 coordinates and processes data from these interfaces to achieve corresponding functions. The data processing capability 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 realize the identification of interfaces and data flow processing. When the BIOS starts, it will detect the hardware on the motherboard, including the network interface 30 card (NIC), USB controller, display controller, etc. Then load the necessary drivers to initialize these hardware devices so that they can work normally, so that the network interface 30 card 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 the VGA interface 60. Among them, the CPU communicates with the network device by sending and receiving data packets on the physical layer through the network interface 30 such as the RJ45 interface. The USB controller is responsible for processing the data transmission and power management of the USB device connected to the USB interface 40. When the USB device is connected to the industrial computer, the USB controller will identify the USB device and communicate with the CPU to complete the data transmission. The display controller is responsible for processing the display output. When the CPU needs to send image data to the display, the data is converted into an appropriate format through the display controller and transmitted to the display through the HDMI or VGA interface 60.

[0040] Specifically, the multi-functional multiplexing motherboard provided in the embodiment of the present application realizes maximum utilization of the functions of the central processing unit 20 in the space of a small-sized substrate 10 by stacking a network interface 30 and a USB interface 40, as well as stacking an HDMI interface 50 and a VGA interface 60 in the layout space on the substrate 10, which is beneficial for realizing more functions on the small-sized substrate 10 and realizing multi-functional multiplexing of the central processing unit 20, thereby facilitating the miniaturization design of industrial control computers while realizing multi-functionality.

[0041] In one embodiment, the multifunctional multiplexed motherboard provided in the embodiment of the present application can maximize the use of the 3.5-inch PCB space, meet the functional output of more scene applications, and enrich the choices.

[0042] In one embodiment, if Figure 2 As shown, the network interface 30, the USB interface 40, the HDMI interface 50 and the VGA interface 60 are all arranged on the same side of the substrate 10. By arranging the network interface 30, the USB interface 40, the HDMI interface 50 and the VGA interface 60 on the same side of the substrate 10, the layout space of the other sides of the substrate 10 can be saved. In addition, it is also beneficial to centrally wire the network interface 30, the USB interface 40, the HDMI interface 50 and the VGA interface 60 when they are connected to external devices, so as to ensure that there is no need to open too many openings on the wall of the other sides of the industrial computer.

[0043] In one embodiment, if Figure 5As shown, the network interface 30 is an RJ45 interface. Through the RJ45 interface, by inserting a network cable, the industrial computer can be connected to network devices such as routers and switches to access the local area network or the Internet for data transmission, web browsing, file downloading and other operations. The RJ45 interface supports a variety of network transmission speeds, such as the common 10M, 100M, 1000M and 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 large data transmission.

[0044] like Figure 5 As shown, the RJ45 interface can be pinned as follows:

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

[0046] In one embodiment, if 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 follows Figure 6 shown.

[0047] In one embodiment, the HDMI interface 50 may be configured as follows: Figure 7 As shown. The HDMI_DAC_5V pin is used to access the 5V voltage, and the GND pin is grounded. In the figure, the pins "DV1_TMDS_D2+", "DV1_TMDS_D2-", "DV1_TMDS_D1+", "DV1_TMDS_D1-", "DV1_TMDS_D0+", "DV1_TMDS_D0-", "DV1_TMDS_TXC+", and "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 the data signal. HPD_DVM is a hot-plug detection pin, which is used to detect the connection and disconnection status of the HDMI device, wherein the HPD_DVM pin can be connected to the central processing unit 20 so that the BIOS can know whether the HDMI interface 50 is connected to an HDMI device by reading the CPU pin.

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

[0049] In one embodiment, multiple general input and 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, and the multi-functional multiplexed industrial control computer also includes: a BIOS chip, which is connected to the central processing unit 20.

[0050] By multiplexing the general input and output pins of the central processor 20, the need for additional dedicated chips is reduced, and the hardware cost and circuit board complexity are reduced. For example, a pin can be used as a network data transmission pin, a USB data pin, etc. in different working modes, thereby improving the utilization rate of hardware resources. This enables industrial computers to integrate multiple commonly used interfaces in a compact hardware architecture, facilitates system integration in scenarios such as industrial control, realizes intelligent control and data processing of equipment, and meets the needs of different devices for different interfaces.

[0051] In one embodiment, the CPU 20 has a function check pin, and the CPU 20 is connected to the BIOS chip through the function check pin. By using the designed function check pin detection, the corresponding function signal is automatically selected and output according to the BIOS check status, so as to maximize the use of the CPU capacity on a small-sized motherboard and realize multi-function multiplexing.

[0052] In one embodiment, 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] The LED cathode pin is connected to the general input / output pin of the central processing unit 20 , and when the network interface 30 is connected to a network cable, the LED cathode pin has a voltage.

[0054] Once the insertion of the network cable is detected, the network interface 30 will generate a voltage signal through the internal circuit. This voltage signal is transmitted to the line connected to the LED cathode pin, so that the LED cathode pin obtains voltage. The BIOS reads the pin of the central processor 20 and identifies whether there is a network communication demand based on the network interface LED status information fed back by the central processor 20. If so, the BIOS and the central processor 20 cooperate to implement the network function. That is, the motherboard provided in the embodiment of the present application directly or indirectly connects the LED cathode pin to the central processor 20, and the BIOS can realize the switching of the network interface 30 function by reading the pin.

[0055] In one embodiment, the mainboard further includes: a network controller chip (not shown), wherein a plurality of first terminals of the network controller chip are respectively connected to a plurality of terminals of the network interface 30, and a plurality of second terminals of the network controller chip are respectively connected to a plurality of general purpose input and output terminals of the central processing unit 20. In one embodiment, the network controller chip may be a chip of the RTL111H series.

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

[0057] The voltage-stabilized 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 such as industrial control and servers that require high stability, this voltage-stabilized power supply design can ensure that the industrial computer can run stably for a long time and reduce the risk of data loss or equipment damage caused by power fluctuations.

[0058] In one embodiment, the mainboard further includes: an LVDS (Low-Voltage Differential Signaling) interface (not shown), which is disposed 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 LVDS lines is basically the same. After subtracting at the receiving end, the interference can be largely offset, thereby ensuring the integrity and accuracy of the signal. The LVDS interface is usually composed of multiple differential signal pairs, each of which includes a positive signal pin (such as LVDS+) and a negative signal pin (such as LVDS-). In addition, a clock signal pin may also be included for synchronous data transmission. These pins are generally arranged on the interface and connected to the external device through a flat cable or a dedicated cable. The central processor 20 can send the processed data through the LVDS interface, or receive data from an external device for processing.

[0060] The motherboard provided in the embodiment of the present application realizes maximum utilization of the 3.5-inch PCB space through PCB layout space stacking, designing functional PIN pin detection, and automatically selecting the corresponding functional signal for output through BIOS check status, so as to meet the functional output of more scenarios and enrich the choices. The display output supports VGA, HDMI, LVDS, etc., M.2 KEY-M, M.2 KEY-E expansion functions, and supports NVME system disk fast startup, which can meet the current market needs and has a wide range of application scenarios.

[0061] By making interfaces with different functions compatible 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 signal to be output by the corresponding functional connector by reading the check pin information through BIOS, the maximum utilization of the limited substrate 10 space can be achieved.

[0062] In one embodiment, the motherboard provided in the embodiment of the present application supports optional designs of 2*RS232 and 6*RS232 ports. Users can choose 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-function multiplexing.

[0063] In one embodiment, the motherboard provided in the embodiment of the present application supports up to 6-way RS232 serial port design, has strong applicability and high scalability, and users can connect external RS232 devices for serial port communication according to actual needs.

[0064] In one embodiment, the mainboard 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, power-on, scheduled power-on, watchdog reset, and remote power on / off device intelligent identification.

[0066] In one embodiment, an industrial control computer is provided, comprising the above-mentioned multi-functional multiplexed mainboard.

[0067] The industrial computer equipped with the above-mentioned mainboard has the beneficial effects of the above-mentioned mainboard embodiment, which will not be described in detail here.

[0068] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0069] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached 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.

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, and the multifunctional multiplexed industrial control computer further comprises: A BIOS chip is connected to the central processing unit.

6. The multifunctional multiplexed mainboard according to claim 5, characterized in that: 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.

7. The multifunctional multiplexed mainboard according to any one of claims 1 to 6, characterized in that: 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; The LED cathode pin is correspondingly connected to the general input and output pin of the central processing unit. When the network interface is connected to a network cable, the LED cathode pin has a voltage.

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

9. The multifunctional multiplexed mainboard according to any one of claims 1 to 6, 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.

10. An industrial control computer, characterized in that: Comprising a multifunctional multiplexed mainboard as described in any one of claims 1-9.

Images