CN210072446U

CN210072446U - Multi-board interconnection structure of industrial personal computer

Info

Publication number: CN210072446U
Application number: CN201920246407.0U
Authority: CN
Inventors: 陈东东; 陈小军; 鲁星华
Original assignee: Guangzhou Lu Bangtong Networking Technology Co Ltd
Current assignee: Guangzhou Lubangtong IoT Co Ltd
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2020-02-14
Anticipated expiration: 2029-02-27

Abstract

The utility model belongs to the field of industrial personal computers, and discloses a multi-board interconnection structure of an industrial personal computer, which comprises a mainboard, wherein the mainboard is connected with a core board, a first expansion board and a second expansion board, and the core board is provided with a processor, a memory chip connected with the processor and a memory connected with the processor; the first expansion board is provided with a high-speed communication interface, and the second expansion board is provided with a low-speed communication interface; the main board is provided with a standard interface; the high-speed communication interface, the low-speed communication interface and the standard interface are respectively connected to the processor. The main board of the scheme is only designed into one type, all main functions and standard interfaces are arranged in the main board, and the types and the number of the interfaces meet the common requirements of most users. The expansion board is designed according to the differentiation requirements of partial users, can support two expansion boards with different functions, interface types, interface numbers and physical forms, and each expansion board covers the differentiation requirements of users in different industries on the interface numbers and types.

Description

Multi-board interconnection structure of industrial personal computer

Technical Field

The utility model belongs to the technical field of the industrial computer and specifically relates to a many boards interconnection structure of industrial computer.

Background

The roughly internal board card structure of current industrial computer is single-deck type, mainboard + extension board type.

Industrial personal computers are a lot of users facing different industries in actual use. The user has different requirements on the performance, the memory capacity and the eMMC capacity of the CPU and the GPU, and the requirements on the physical form, the interface type and the interface quantity of the interface are difficult to unify. The current industrial personal computer adopts a single-board type structure design, and a CPU minimum system, all functions and interfaces are all designed on one circuit board; the mode of main board and expansion board is adopted, the minimum system, main function and interface of CPU are designed on the main board, and part of interface is designed on the expansion board. The two design modes are difficult to meet the differentiation requirements of a plurality of users, so that the product models are too many in types, the development period is long, and a large amount of customized products can be generated. The method brings great difficulty to company product management and stock model management, and has long development, test and authentication periods, high production cost and incapability of forming cost advantages.

In 2015, a new utility model patent application CN201520601784.3 was proposed by the national internet cloud control information technology limited company, which discloses a bank branch machine room monitoring host, comprising a housing, a main board, a power board and an expansion board; the main board, the power board and the expansion board are all arranged inside the shell, the power board is arranged on the right side of the main board and is electrically connected with the main board through a conducting wire, the two expansion boards are arranged on the left side of the main board and are respectively and electrically connected with the main board through flat cables; the main board is connected with a core board, and is also connected with a WIFI module and a Zigbee module for realizing wireless communication, and the rear panel of the shell is provided with a power socket, a power switch, a kilomega network port, an RS232 serial port, a multi-path RS485 serial port and a multi-path pulse quantity/switching quantity input port; the power socket and the power switch are respectively connected with the power panel through wires; the kilomega network port, the RS232 serial port, one RS485 serial port and two pulse quantity/switching quantity input ports are respectively and electrically connected with the main board, and the rest RS485 serial ports and the rest pulse quantity/switching quantity input ports are respectively and electrically connected with the expansion board. The utility model discloses CAN freely insert all kinds of equipment based on agreements such as RS232, RS485, CAN bus, the interface is abundant, each interface independent power supply to provide the expansion board interface and supply the extension, save customer's input cost greatly.

In this solution, it is disclosed that a core board and at least 2 expansion boards are mounted on a main board.

But the expansion board is not further specified, so that the expansion board can better adapt to the requirements of upgrading and updating, and the upgrading cost is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a many boards interconnection structure of industrial computer, the advantage of this structure lies in: the core board can be selectively matched with the board card consisting of the CPU minimum systems with high, medium and low performances, can meet the differentiated requirements of different users on the performance of the processor, the performance of the display card, the memory and the storage, covers the requirements of high, medium and low products in the industry, and only comprises the CPU minimum system. The main board is only designed into one type, and each main function and standard interface are arranged in the main board, and the type and the number of the interfaces meet the common requirements of most users. The expansion board is designed according to the differentiation requirements of partial users, can support two expansion boards with different functions, interface types, interface numbers and physical forms, and each expansion board covers the differentiation requirements of users in different industries on the interface numbers and types.

The utility model discloses a specific technical scheme does: a multi-board interconnection structure of an industrial personal computer comprises a mainboard, wherein a core board, a first expansion board and a second expansion board are connected to the mainboard, and a processor, a memory chip connected with the processor and a memory connected with the processor are arranged on the core board; the first expansion board is provided with a high-speed communication interface, and the second expansion board is provided with a low-speed communication interface; the main board is provided with a standard interface; the high-speed communication interface, the low-speed communication interface and the standard interface are respectively connected to the processor.

The high-speed communication interface and the low-speed communication interface described in this embodiment are divided according to the rate of the signal, but there is no strict division point, and in contrast, a high-slope signal of 100MHz or more is generally referred to as a high-speed signal, and a low-slope signal of 100MHz or less is referred to as a low-speed signal.

In the multi-board interconnection structure of the industrial personal computer, the core board and the main board are connected through the golden finger and the MXM connector, and the main board is connected with the first expansion board and the second expansion board through the flat cable.

In the multi-board interconnection structure of the industrial personal computer, the standard interface is an interface corresponding to one or more of an LED, a USB OTG, an HDMI, an RJ45, a USB, a loudspeaker, an earphone, a microphone, an SIM card, a reset key, a Micro SD card, an antenna SMA connector, a cellular module, WIFI, Bluetooth, a DB9 type RS232 serial port, RS485, LVDS and a DC connector.

In the multi-board interconnection structure of the industrial personal computer, the high-speed communication interface is a network port and/or a USB interface, an Ethernet exchange chip is arranged between the network port and the flat cable interface of the first expansion board, and a power control chip is arranged between the USB interface and the flat cable interface of the first expansion board.

In the multi-board interconnection structure of the industrial personal computer, the low-speed communication interface is a first RS232 interface and a first RS485 interface, a first transceiver is arranged between the first RS485 interface and the flat cable interface of the second expansion board, and a first expansion chip and a first level conversion chip are arranged between the first RS232 interface and the flat cable interface of the second expansion board.

The multi-board interconnection structure of the industrial personal computer further comprises a third expansion board, the third expansion board is connected with the main board through a flat cable, and a DI (direct interface), a DO (data only interface), a CAN (controller area network) interface, a second RS485 interface and a second RS232 interface are arranged on the third expansion board; GPIO expansion chips are arranged between the DI and DO interfaces and the flat cable interface of the third expansion board, a second transceiver is arranged between the second RS485 interface and the flat cable interface of the third expansion board, and a second expansion chip and a second level conversion chip are arranged between the second RS232 interface and the flat cable interface of the third expansion board. .

Compared with the prior art, the beneficial effects of the utility model reside in that:

although the traditional single board type or the mainboard plus the expansion board type has advantages in design and material cost, the product function, performance, interface quantity, type, physical form and the like are fixed, so that the requirement for differentiation cannot be met, and the application range of the single board type equipment is single; the CPU minimum system of the main board and the expansion board device is positioned on the main board, the defect repairing speed is low, the defect improving cost is high, the requirements of users for high, medium and low performance are difficult to meet, the development difficulty is high, the development period is long, the development cost is high, the function flexibility is general, and the main board must be redesigned when upgrading and updating; the core board + mainboard + two extension plate structures can be nimble cover most users, upgrade and upgrade only need redesign CPU minimum system, the reprint degree of difficulty is low, development cycle is short, but platform modularization production. Therefore, the application range of the product, the production design cost and the like can be well balanced. When different user demands are met in batches, the cost is lower due to the scale advantages of the core board, the mainboard and the double expansion boards.

Drawings

Fig. 1 is a block diagram of the structure of embodiment 1 of the present invention.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.

Example 1

As shown in fig. 1, a multi-board interconnection structure of an industrial personal computer includes a motherboard 4, the motherboard 4 is connected with a core board 1, a first expansion board 2, and a second expansion board 3, the core board 1 is provided with a processor 12, a memory chip 13 connected with the processor 12, and a memory 14 connected with the processor 12; the first expansion board 2 is provided with a high-speed communication interface, and the second expansion board 3 is provided with a low-speed communication interface; the main board 4 is provided with a standard interface; the high-speed communication interface, the low-speed communication interface and the standard interface are respectively connected to the processor 12.

In practical application, if the device is to be upgraded, the core board 1 may be replaced, and if the peripheral system has a change in the requirements for various interfaces, the first expansion board 2 or the second expansion board 3 may be replaced to achieve the purpose of upgrading. And the structure is beneficial to the modular production of the platform, and the production and updating cost is lower.

As a further refinement of this embodiment, the core board 1 and the main board 4 are connected by the gold finger 11 and the MXM connector 41, and the main board 4 and the first expansion board 2 and the second expansion board 3 are connected by the flat cable.

In this embodiment, the standard interface is an interface corresponding to one or more of an LED, an USB OTG, an HDMI, an RJ45, a USB, a speaker, an earphone, a microphone, a SIM card, a reset key, a Micro SD card, an antenna SMA connector, a cellular module, WIFI, bluetooth, a DB9 type RS232 serial port, RS485, LVDS, and a DC header, the high-speed communication interface is a network port 21 and a USB interface 22, an Ethernet exchange chip 23 is arranged between the network port 21 and a flat cable interface 33 of the first expansion board 2, a power control chip 24 is arranged between the USB interface 22 and the flat cable interface 25 of the first expansion board 2, the low-speed communication interfaces are a first RS232 interface 31 and a first RS485 interface 32, a first transceiver 34 is arranged between the first RS485 interface 32 and the flat cable interface 33 of the second expansion board 3, a first expansion chip 35 and a first level shift chip 36 are disposed between the first RS232 interface 31 and the flat cable interface 33 of the second expansion board 3.

In order to further improve the interface richness and upgrade flexibility of the interface, the interface further comprises a third expansion board 5, the third expansion board 5 is connected with the main board 4 through a flat cable, and the third expansion board 5 is provided with a DI and DO interface 51, a CAN interface 52, a second RS485 interface 53 and a second RS232 interface 54; a GPIO expansion chip 55 is disposed between the DI and DO interfaces 51 and the bus interface 56 of the third expansion board 5, a second transceiver 57 is disposed between the second RS485 interface 53 and the bus interface 56 of the third expansion board 5, and a second expansion chip 58 and a second level conversion chip 59 are disposed between the second RS232 interface 54 and the bus interface 56 of the third expansion board 5.

The advantages and disadvantages of the traditional single board type or the motherboard + the extended board type are compared as follows:

from the above list, it can be seen that the single board type or the motherboard plus the extension board type has advantages in design and material cost, but the product functions, performance, interface number, types, physical forms, etc. are fixed, and cannot meet the requirements of differentiation, resulting in a single application range of the single board type device; the CPU minimum system of the main board and the expansion board device is positioned on the main board, the defect repairing speed is low, the defect improving cost is high, the requirements of users for high, medium and low performance are difficult to meet, the development difficulty is high, the development period is long, the development cost is high, the function flexibility is general, and the main board must be redesigned when upgrading and updating; the core board + mainboard + two extension plate structures can be nimble cover most users, upgrade and upgrade only need redesign CPU minimum system, the reprint degree of difficulty is low, development cycle is short, but platform modularization production. Therefore, the application range of the product, the production design cost and the like can be well balanced. When different user demands are met in batches, the cost is lower due to the scale advantages of the core board, the mainboard and the double expansion boards.

The above description is only for the preferred embodiment of the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-board interconnection structure of an industrial personal computer comprises a mainboard and is characterized in that a core board, a first expansion board and a second expansion board are connected to the mainboard, and a processor, a memory chip connected with the processor and a memory connected with the processor are arranged on the core board; the first expansion board is provided with a high-speed communication interface, and the second expansion board is provided with a low-speed communication interface; the main board is provided with a standard interface; the high-speed communication interface, the low-speed communication interface and the standard interface are respectively connected to the processor.

2. The multi-board interconnection structure of the industrial personal computer according to claim 1, wherein the core board and the main board are connected through a gold finger and an MXM connector, and the main board is connected with the first expansion board and the second expansion board through a flat cable.

3. The multi-board interconnection structure of the industrial personal computer according to claim 2, wherein the standard interface is an interface corresponding to one or more of an LED, a USB OTG, an HDMI, an RJ45, a USB, a speaker, an earphone, a microphone, a SIM card, a reset key, a Micro SD card, an antenna SMA connector, a cellular module, WIFI, bluetooth, a DB9 type RS232 serial port, RS485, LVDS, and a DC header.

4. The multi-board interconnection structure of the industrial personal computer according to claim 2, wherein the high-speed communication interface is a network port and/or a USB interface, an Ethernet switching chip is arranged between the network port and the flat cable interface of the first expansion board, and a power control chip is arranged between the USB interface and the flat cable interface of the first expansion board.

5. The multi-board interconnection structure of the industrial personal computer according to claim 2, wherein the low-speed communication interface is a first RS232 interface and a first RS485 interface, a first transceiver is arranged between the first RS485 interface and the flat cable interface of the second expansion board, and a first expansion chip and a first level conversion chip are arranged between the first RS232 interface and the flat cable interface of the second expansion board.

6. The multi-board interconnection structure of the industrial personal computer according to claim 5, further comprising a third expansion board, wherein the third expansion board is connected with the main board through a flat cable, and the third expansion board is provided with a DI and DO interface, a CAN interface, a second RS485 interface and a second RS232 interface; GPIO expansion chips are arranged between the DI and DO interfaces and the flat cable interface of the third expansion board, a second transceiver is arranged between the second RS485 interface and the flat cable interface of the third expansion board, and a second expansion chip and a second level conversion chip are arranged between the second RS232 interface and the flat cable interface of the third expansion board.