CN216979753U

CN216979753U - Portable general test platform based on USB bus

Info

Publication number: CN216979753U
Application number: CN202123432655.0U
Authority: CN
Inventors: 石聿炜; 李鹏; 梁敏; 倪雨晨; 张溢文
Original assignee: Xi'an Precision Machinery Research Institute
Current assignee: Xi'an Precision Machinery Research Institute
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-15
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a portable universal test platform based on a USB bus, which solves the defects that the existing test equipment based on PXI/PXIe is large and medium-sized equipment, has poor portability and is not beneficial to application in individual fields, and the portable test equipment has long research and development period and large influence factors on reliability and stability. The test platform comprises a test case, and an embedded controller, a power management module, a battery module, a bus module and N functional boards which are positioned in the test case, wherein N is a positive integer; a man-machine operation interface, a USB interface, an Ethernet interface and an aerial plug interface are arranged on the test case from the outside; the bus module comprises a USB bus and a power line; the battery module provides a test power supply for each functional board card through the power supply management module and the power supply line; the controller realizes communication with each functional board card through a USB bus, and the USB bus is added with a digital clock and a trigger signal; and the N functional board cards are respectively used for realizing different test functions.

Description

Portable general test platform based on USB bus

Technical Field

The utility model belongs to the technical field of test equipment, and particularly relates to a portable universal test platform based on a USB bus.

Background

In the process of research, production, maintenance and maintenance of underwater weapons, special portable test equipment needs to be developed to meet the product test requirements of non-external power supply and narrow environment places such as surface ships and submarines, and the like, and meanwhile, in other fields, the product test requirements in the field also exist, but currently, the mainstream general test platform is large and medium test equipment built on the basis of PXI/PXIe virtual technology, corresponding test hardware and software are designed according to tested objects in the field of portable test equipment, the research and development period is long, the reliability and the stability are closely related to the technical level of designers and used components, and a general portable test platform similar to PXI/PXIe is lacked.

Therefore, a universal test platform which has both the technical advantages of PXI/PXIe and portable attributes needs to be developed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the existing PXI/PXIe-based test equipment is large and medium-sized equipment, has poor portability, cannot be used in scenes such as narrow space, inconvenient power supply and the like, and the portable test equipment has long research and development period and has large reliability and stability influence factors, and provides a portable universal test platform based on a USB bus.

In order to achieve the purpose, the technical solution provided by the utility model is as follows:

a portable universal test platform based on a USB bus is characterized in that: the test system comprises a test case, and an embedded controller, a power management module, a battery module, a backboard bus module and N functional board cards which are positioned in the test case, wherein N is a positive integer;

a man-machine operation interface, a USB interface, an Ethernet interface and an aerial plug interface are arranged on the test case from the outside;

the backboard bus module comprises a USB bus and a power line;

the battery module provides a test power supply for each functional board card through the power supply management module and the power supply line;

the controller realizes communication with each functional board card through a USB bus, and a digital clock and a trigger signal are added in the USB bus;

the N functional board cards are in modular design and are respectively used for realizing different test functions.

Furthermore, for convenient operation, a touch operation mode is supported, the human-computer operation interface is a VGA or DP interface, and is connected with a touch screen and a key through an IO control line.

Furthermore, the function board card can adopt a universal board card capable of realizing analog quantity acquisition, analog quantity output, digital quantity acquisition, digital quantity output or bus communication test functions, the function board card leads signals to an externally arranged aerial plug interface on the test case through a transfer line or a signal conditioning board, and specifically which function board cards are used are selected according to test requirements. If no suitable module exists, the corresponding module can be developed based on the prior art according to the system standard, the required module is selected and then inserted into a back plate in the testing machine case, the switching wire or the signal conditioning plate is used for leading the signal to an external aerial plug interface on the machine case, software development is carried out according to a software platform which can be developed secondarily and is provided by the testing platform, special testing software meeting the platform driving requirement is developed, and portable general testing equipment meeting the testing requirement is developed quickly.

Furthermore, a back plate for inserting the functional board card is arranged in the test case.

Further, N is 1-6, and the corresponding functional clamping plate can be properly selected according to the test requirement.

The utility model has the advantages that:

1. the utility model provides a portable universal test platform based on a USB bus, wherein a digital clock and a trigger signal are added to the USB bus so as to realize synchronous work among all functional board cards, and the problem that the traditional USB module instrument cannot be synchronized is solved; through increasing battery module and power management module, solved and to have carried out the required portable general test platform of product test at no outside power supply and service environment narrow place, adopted the modularized design to solve the equipment of the same kind and developed the cycle length, reliability, poor stability's problem.

2. The utility model adopts the universal card board with the functions required by common tests, reduces the workload of developing specific test circuits and card boards by users, accelerates the process of equipment development, and leads developers to put efforts on the understanding of tested products and the development of necessary signal conditioning circuits, thereby rapidly developing reliable and stable portable test equipment.

3. The utility model is based on the USB bus design, has the same advantages as the PXI/PXIe technology, namely the platform is open, the functional board card with corresponding functions can be selected according to the test platform requirement and the test requirement, and the application range is wide; meanwhile, compared with a test platform based on the PXI/PXIe technology, the test platform has the advantages of simple interface and small size of the whole machine, and can meet the test requirements at narrow places without external power supply and in use environments.

Drawings

FIG. 1 is a schematic diagram of a USB bus-based portable universal test platform according to the present invention.

Detailed Description

The utility model is described in further detail below with reference to the following figures and specific examples:

as shown in fig. 1, a portable universal test platform based on a USB bus mainly includes a portable universal test platform system architecture and a backplane bus definition based on the USB bus, specifically a test chassis, and an embedded controller, a power management module, a battery module, a backplane bus module, and 1-6 functional boards located in the test chassis; the embedded controller, the power management module and the battery module are fixed modules of the test platform and can be realized by adopting the existing components; each functional board card (also called sub-module) is a board card for realizing the functions of analog quantity acquisition, analog quantity output, digital quantity acquisition, digital quantity output and bus communication test, and one or more functional board cards can be selected to be inserted into the back plate of the test case according to the test requirement; the backboard bus module comprises a USB bus and a power line.

The testing case provides a man-machine operation interface, supports a touch control operation mode (the man-machine operation interface is a VGA or DP interface, and is connected with a touch screen and a key through an IO control line), provides interfaces such as USB, Ethernet and aviation plug externally, and communicates with each functional board card internally through a USB bus, wherein a digital clock and a trigger signal are added in the USB bus, so that each functional board card can synchronously work. The battery module provides test power for each functional board card through the power management module and the power line to complete the test.

The test platform adopts a modular design, solves the problems of long development period, poor reliability and poor stability of similar equipment, is convenient to carry integrally, can meet the requirements of product test at narrow places without external power supply and in use environments, and has good application prospect.

While the utility model has been described with reference to specific embodiments, the utility model is not limited thereto, and various equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present disclosure.

Claims

1. The utility model provides a portable general test platform based on USB bus which characterized in that: the intelligent power supply testing device comprises a testing case, and a controller, a power supply management module, a battery module, a bus module and N functional board cards which are positioned in the testing case, wherein N is a positive integer;

the bus module comprises a USB bus and a power line;

the N functional board cards are respectively used for realizing different test functions.

2. The portable universal test platform based on the USB bus according to claim 1, wherein: the man-machine operation interface is a VGA or DP interface and is connected with the touch screen and the keys through IO control lines.

3. A portable universal test platform based on USB bus according to claim 1 or 2, characterized in that: the function board card adopts a board card capable of realizing analog quantity acquisition, analog quantity output, digital quantity acquisition, digital quantity output or bus communication test functions, and leads signals to an aerial plug interface arranged on the test case through a transfer line or a signal conditioning board.

4. A portable universal test platform based on USB bus according to claim 3, wherein: and a back plate for inserting the functional board card is arranged in the test case.

5. The portable universal test platform based on the USB bus according to claim 4, wherein: and N is 1-6.