CN219105477U

CN219105477U - Bus switching device

Info

Publication number: CN219105477U
Application number: CN202223488931.XU
Authority: CN
Inventors: 王小龙; 罗雅; 张明; 易渡江
Original assignee: Kunxin Guoyi Technology Jiangsu Co ltd
Current assignee: Kunxin Guoyi Technology Jiangsu Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-30
Anticipated expiration: 2032-12-27

Abstract

The present utility model relates to the field of computer technologies, and in particular, to a bus switching device. The standard computer motherboard is used for replacing the original independent main controller, the PCI/PCIe bus on the computer motherboard is converted into the instrument-specific PXI/PXIe bus, and the PXI/PXIe bus slot positions are expanded on the motherboard with PCI/PCIe slot positions. The PCI/PCIe signal conversion board has the main functions of leading out PCI/PCIe signals carried by a computer main board, and performing signal amplification and other processing so as to transmit effective communication signals to the PXI/PXIe interface board, thereby finally realizing the signal communication from the PXI/PXIe expansion module to the main board. The whole cost is reduced, the whole volume and weight are reduced, and the power consumption of the whole machine is reduced.

Description

Bus switching device

Technical Field

The present utility model relates to the field of computer technologies, and in particular, to a bus switching device.

Background

The PXI/PXIe bus is a bus specifically designed for test and measurement instrument applications. A standard complete PXI/PXIe system is generally composed of a PXI/PXIe controller module, a PXI/PXIe slot backboard and an expansion module. Compared with a common PCI/PCIe bus, the PXI/PXIe bus improves the physical structure and the electrical signals of the PCI/PCIe bus aiming at test measurement application, so that the PCI/PCIe bus is more suitable for being used in the test measurement application, and particularly improves the physical interface between an expansion module (comprising a controller module) and a PXI/PXIe back plate, so that the PCI/PCIe bus is easier to plug and replace, is convenient for quick replacement of the module in industrial test, and improves the overall test efficiency.

A standard PXI/PXIe bus structure coordination diagram is shown in FIG. 1, wherein a PXI/PXIe controller module and an expansion module are parallel to each other and are in a vertical relation with a PXI/PXIe backboard; the PXI/PXIe controller module is connected with the zero number slot (i.e. the controller slot) of the backboard through a special connector; the PXI/PXIe expansion module can be connected with the No. 1-7 expansion slot position (which can be inserted in any expansion slot position and can have a plurality of expansion slot positions with the same or similar functions according to the expansion capability of the back plate) through a special connector. The PXI/PXIe controller module and the PXI/PXIe extension module communicate through a PXI/PXIe bus on the back plate. The three components are combined together to form a complete PXI/PXIe bus instrument system.

Standard PXI/PXIe controller modules are self-contained modular designs that require design and production according to specialized standards and are therefore very costly

And the whole machine of standard PXI/PXIe structural design consumes more power, needs independent power, generally increases whole machine and volume and weight and integrates the built-in power or external power module in the trade.

Therefore, a bus switching device is needed by those skilled in the art to solve the above-mentioned problems in the prior art, reduce the overall cost, reduce the overall size and weight, and reduce the overall power consumption.

Disclosure of Invention

In order to solve the technical problems, the utility model provides:

a bus switching device comprises a computer main board, a PCI/PCIe signal conversion module and a PXI/PXIe expansion module, wherein the computer main board is provided with a PCI/PCIe bus slot, and the PCI/PCIe signal conversion module (2) comprises a PCI/PCIe signal conversion board (201) and a PXI/PXIe interface board (202)

The technical principle of the utility model is mainly that: the standard computer main board is used for replacing the original independent main controller, the PCI/PCIe bus on the computer main board is skillfully converted into the instrument-specific PXI/PXIe bus, and the PXI/PXIe bus slot positions are expanded on the main board with the PCI/PCIe slot positions.

The computer main board is a control core of the whole system and is used for replacing an independent controller module in a standard PXI/PXIe bus, the computer main board is provided with a PCI/PCIe bus slot, and the bottom of the PCI/PCIe signal conversion board is provided with a golden finger which can be inserted into the PCI/PCIe bus slot of the main board. The PCI/PCIe signal conversion board has the main functions of leading out PCI/PCIe signals carried by a computer main board, and performing signal amplification and other processing so as to transmit effective communication signals to the PXI/PXIe interface board, thereby finally realizing the signal communication from the PXI/PXIe expansion module to the main board.

The PCI/PCIe signal conversion board has a special opposite-plug connector at the rear part, usually designed as a male connector, and can be in communication connection after being plugged with the opposite-plug connector on the PXI/PXIe interface board, so as to realize the circuit signal transmission between the two connectors.

The PXI/PXIe interface board is the core innovation of the utility model. The functions of the method include: the PCI/PCIe signal-to-PXI/PXIe signal conversion is realized, the physical interface of the PXI/PXIe bus is realized, and the instrument related functions of the PXI/PXIe bus such as a trigger bus, a synchronous clock and the like are realized.

One side of the PXI/PXIe interface board is provided with a PXI/PXIe expansion slot connector, and can be connected with a plurality of PXI/PXIe expansion modules.

The PXI/PXIe expansion module can realize different test and measurement, and the quick replacement of the module in industrial test can be conveniently realized by replacing the different PXI/PXIe expansion modules, so that the overall test efficiency is improved.

Preferably: according to different technical requirements and price, the computer main board can select a universal standard main board with basically the same overall dimension specification and meeting the requirements of configuration so as to meet the requirements of different system configurations. The motherboard may have a CPU and a main chipset mounted or integrated thereon as a PCI/PCIe bus controller.

Preferably: the PXI/PXIe interface board can be provided with a plurality of different configurations such as a PXI special expansion slot, a PXIe special expansion slot, a PXI/PXIe mixed expansion slot and the like according to requirements.

Preferably: a flexible flat cable may be used instead of the function of a gold finger or connector.

The utility model has the technical effects and advantages that:

the original PCI/PCIe slot of the main board is converted into the PXI/PXIe slot, and the following beneficial effects can be achieved:

1. a lower cost PXI/PXIe instrumentation system is achieved. Because the utility model, the original computer motherboard with PCI/PCIe slot only, which is provided with CPU/chipset, memory hard disk and the like, can also form complete control function, and can replace the relatively expensive PXI/PXIe modularized controller necessary in the standard PXI/PXIe system. Through the signal conversion module in the patent, the original PCI/PCIe slot of the main board is converted into the PXI/PXIe slot, and the function of the backboard in the standard PXI/PXIe system is realized. Thus, a lower cost PXI/PXIe instrumentation system may be implemented.

2. The PXI/PXIe instrument system with higher integration level can be realized. According to the utility model, the PXI/PXIe instrument system can omit the original necessary PXI/PXIe controller slot position, the expansion module is also arranged in a transverse insertion mode, the internal integration level of the whole machine is higher, the space utilization is more reasonable, and a plurality of components such as a high-performance main board, a wide-voltage direct-current power supply input, a high-capacity lithium battery and battery charge and discharge control board, two PXI/PXIe expansion modules and the like can be plugged into a system which is actively compact; conventional schemes often cannot achieve all the above functions.

3. The portable integrated PXI/PXIe instrument system and weight and volume can be effectively reduced, so that the portable integrated PXI/PXIe instrument system is more portable and easier to carry and transport.

4. The portable integrated PXI/PXIe instrument system with simpler and more reliable structure and stronger reliability and environmental adaptability can be realized. Because the independent PXI/PXIe controller module in the traditional architecture is replaced by the main board, the structure limit of the original PXI/PXIe instrument system is greatly released.

Drawings

FIG. 1 is a diagram illustrating a standard PXI/PXIe bus structure coordination;

fig. 2 is a schematic structural diagram of a bus switching device according to an embodiment of the present application

FIG. 3 is a schematic diagram of a bus transfer apparatus according to a second embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a PCI/PCIe signal conversion board design of the present application;

fig. 5 is a schematic diagram of a PXI/PXIe interface board design of the present application.

In the figure:

1. a computer motherboard; 101. PCI/PCIe bus slots;

2. PCI/PCIe signal conversion module; 201. PCI/PCIe signal conversion board; 2011. A golden finger; 2012. a conversion plate male connector; 202. PXI/PXIe interface board; 2021. an interface board female connector; 2022. PXI/PXIe expansion slot connectors;

3. the PXI/PXIe expansion module, 301, expansion module connector; 302 a fixed block;

4. soft flat cable.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed, as the male and female ends may be interchanged in various circumstances. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Example 1

Referring to fig. 2, 4 and 5, in the present embodiment, a bus switching device is provided,

comprises a computer main board (1), a PCI/PCIe signal conversion module (2) and a PXI/PXIe expansion module (3), wherein the computer main board (1) is provided with a PCI/PCIe bus slot (101), and the PCI/PCIe signal conversion module (2) comprises a PCI/PCIe signal conversion board (201) and a PXI/PXIe interface board (202)

Referring to fig. 4, a golden finger (2011) is arranged at the bottom of the PCI/PCIe signal conversion board (201), and the golden finger (2011) can be plugged into the PCI/PCIe bus slot (101) of the motherboard. The PCI/PCIe signal conversion board (201) has the main functions of leading out PCI/PCIe signals carried by a computer main board, and performing signal amplification and other processing so as to transmit effective communication signals to the PXI/PXIe interface board (202), thereby finally realizing the signal communication from the PXI/PXIe expansion module (3) to the computer main board (1).

The PCI/PCIe signal conversion board (201) has a special conversion board male connector (2012) at the rear part, and can be connected in a communication way after being plugged with an interface board female connector (2021) on the PXI/PXIe interface board (202) to realize the circuit signal transmission between the two.

One side of the PXI/PXIe interface board (202) is configured with a PXI/PXIe expansion slot connector (2022), referring to FIG. 5, to which one or more PXI/PXIe expansion modules (3) can be connected.

A PXI/PXIe extension module (3) including an extension module connector (301); fixed block (302)

Signal communication is accomplished by inserting the expansion module connector (301) within the PXI/PXIe expansion slot connector (2022). Fixed block (302) fixes PXI/PXIe expansion module (3)

Different test measurements can be realized by the PXI/PXIe expansion module (3), and the quick replacement of the module in industrial test can be conveniently realized by replacing the different PXI/PXIe expansion module (3), so that the overall test efficiency is improved.

Example 2

Referring to fig. 3, the difference between the present embodiment and embodiment 1 is that a flexible flat cable is used to replace the function of the golden finger or the connector.

One end of the flexible flat cable (4) is inserted into the PCI/PCIe bus slot (101), and the other end of the flexible flat cable (4) is connected with the PCI/PCIe signal conversion board (201). The function of replacing the golden finger (2011) is realized, the same soft flat cable can realize the function of replacing the conversion board male end connector (2012) and the interface board female end connector (2021) of the implementation 1, and the use of the soft flat cable can optimize the space layout and meet the heat dissipation requirement.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The bus switching device is characterized by comprising a computer main board (1), a PCI/PCIe signal conversion module (2) and a PXI/PXIe expansion module (3), wherein the computer main board (1) is configured with a PCI/PCIe bus slot (101), and the PCI/PCIe signal conversion module (2) comprises a PCI/PCIe signal conversion board (201) and a PXI/PXIe interface board (202).

2. The bus switching device according to claim 1, wherein a golden finger (2011) is arranged at the bottom of the PCI/PCIe signal conversion board (201), and the golden finger (2011) can be plugged into the PCI/PCIe bus slot (101) of the motherboard.

3. The bus transfer apparatus of claim 1, wherein the PCI/PCIe signal conversion board (201) has a dedicated board male connector (2012) at the rear to mate with an interface board female connector (2021) on the PXI/PXIe interface board (202).

4. A bus patching device according to claim 1, wherein said PXI/PXIe interface board (202) is configured with one or more PXI/PXIe expansion slot connectors (2022) to which one or more PXI/PXIe expansion modules (3) may be connected.

5. A bus patching device, as set forth in claim 1, wherein the PXI/PXIe expansion module (3) comprises an expansion module connector (301); a fixed block (302).

6. A bus patching device according to claim 5, wherein said expansion module connector (301) is pluggable into said PXI/PXIe expansion slot connector (2022).

7. A bus transfer device according to claim 1, characterized in that the flexible flat cable (4) performs the function of replacing a gold finger or a connector.