CN103308803A

CN103308803A - Adapter with self-checking circuit and system interface integrated structure

Info

Publication number: CN103308803A
Application number: CN2013102289736A
Authority: CN
Inventors: 袁欢欢; 张洪宇; 刘永安; 陈涛; 张成标; 金敏; 喻芳; 冯燕; 徐志龙; 罗海鹰
Original assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Current assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Priority date: 2013-06-09
Filing date: 2013-06-09
Publication date: 2013-09-18

Abstract

The invention relates to the technical field of self-checking and testing systems of adapters, in particular to an adapter with a self-checking circuit and system interface integrated structure. The adapter comprises a self-checking circuit module and a system interface adaption module; the self-checking circuit module comprises a DSP (digital signal processor) main-control module, a 1553B module, an RS422 module, an I/O (input/output) module and a power supply module; the system interface adaption module comprises a signal conditioning module, an isolation module and an impedance matching module which are arranged on a motherboard. Since the self-checking circuit module and the system interface adaption module are integrated and then connected with a testing platform, the problem about separation of a detection function and a self-checking function of automatic testing equipment is solved, and the equipment can complete self-checking of analog quantity and discrete quantity and 1553B process self-verification.

Description

The adapter of self-checking circuit and system interface integral structure

Technical field

The present invention relates to adapter self check and test macro technical field, specifically, relate to the adapter of a kind of self-checking circuit and system interface integral structure.

Background technology

Along with the System self-test technology more and more is applied to production, maintenance and the guarantee field of equipment, people require also to improve constantly to modularization, portability and the test accuracy of System self-test technology.In the past, traditional general purpose automatic test system is for the correctness of verification system interface and passage, need to be connected with general-utility test platform by self check simulator independently, carry out signal condition, transfer and measure by interface adapter by self check simulator analogue stimulus signal, test platform.The tradition self-checking is generally the form of industrial computer with the self check simulator, and the cable number of connection is many during self-checking like this, and self check setup time is long, and the adaptive BIT that can't inject of system interface designs, and therefore, can't realize the purpose of system's quick self-checking.

Therefore, based on above-mentioned problems of the prior art, be necessary to take a kind of novel structure, self check simulator and interface adapter are integrated the back to be connected with test platform, solve the situation that the ATE (automatic test equipment) measuring ability separates with self-checking function, make equipment can carry out analog quantity, discrete magnitude from the checking certainly of detection, 1553B flow process.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art, adapt to the reality needs, the adapter of a kind of self-checking circuit and system interface integral structure is provided.

In order to realize purpose of the present invention, the technical solution used in the present invention is:

The adapter of a kind of self-checking circuit and system interface integral structure, described adapter comprises self-checking circuit module and system interface adaptation module, described self-checking circuit module comprises DSP main control module, 1553B module, RS422 module, I/O module, power module, and described system interface adaptation module comprises signal condition module, isolation module, the impedance matching module that is arranged on the motherboard.

Described self-checking circuit module is by separating self check mouth, the existing interconnection of signals with test platform of comprehensive self check cause for gossip, the system interface adaptation module is by separating opening, the existing interconnection of signals with test platform of comprehensive cause for gossip, is connected by the general-purpose interface array between test platform and the adapter.

Beneficial effect of the present invention is:

Self-checking circuit module and system interface adaptation module are integrated the back be connected with test platform, solve the situation that the ATE (automatic test equipment) measuring ability separates with self-checking function, make equipment can carry out analog quantity, discrete magnitude from the checking certainly of detection, 1553B flow process.

Description of drawings

Fig. 1 is composition structural representation of the present invention;

Fig. 2 utilizes the present invention to carry out the schematic diagram of self-checking.

Embodiment

The present invention is further described below in conjunction with drawings and Examples:

Embodiment: referring to Fig. 1, Fig. 2.

The adapter 3 of a kind of self-checking circuit and system interface integral structure, described adapter 3 comprises self-checking circuit module 1 and system interface adaptation module 2, described self-checking circuit module 1 comprises DSP main control module 11,1553B module 12, RS422 module 13, I/O module 14, power module 15, and described system interface adaptation module 2 comprises signal condition module 22, isolation module 23, the impedance matching module 24 that is arranged on the motherboard 21.Self-checking circuit module 1 is mainly used in simulation feature signal and 1553B, RS422 communication flow, and system interface adaptation module 2 offers the suitable test signal of test platform with measured signal conditioning, impedance matching conversion, signal attenuation, filtering, isolation.The DSP main control module 11 main digital signal processing functions that realize, I/O module 14 is input/output port.

The invention solves the situation that the ATE (automatic test equipment) measuring ability separates with self-checking function, make equipment can carry out analog quantity, discrete magnitude from the checking certainly of detection, 1553B flow process.

A) analog quantity, discrete magnitude are from detecting

Test platform 4 sends the self check order, and self-checking circuit module 1 produces analog quantity, discrete magnitude characteristic signal, and it is qualified to measure, judge whether through the test signal that system interface adaptation module 2 is nursed one's health, it is suitable that conversion offers test platform.

B) 1553B testing process checking

Test platform 4 sends the self check order, the workflow of self-checking circuit module 1 simulation test product, and test platform 4 is also verified the correctness of 1553B, RS422 passage simultaneously by the correctness of testing software judgement flow process.

Among the figure, 16 for separating the self check mouth, 17 is comprehensive self check mouth, 25 is separating opening, 26 is comprehensive mouthful, the interconnection of signals that self-checking circuit module 1 realizes with test platform 4 by separation self check mouth 16, comprehensive self check mouth 17, the interconnection of signals that system interface adaptation module 2 realizes with test platform 4 by separating opening 25, comprehensive mouth 26.

Be connected by the general-purpose interface array between test platform 4 and the adapter 3.

What embodiments of the invention were announced is preferred embodiment, but is not limited thereto those of ordinary skill in the art; very easily according to above-described embodiment, understand spirit of the present invention, and make different amplifications and variation; but only otherwise break away from spirit of the present invention, all in protection scope of the present invention.

Claims

1. the adapter of a self-checking circuit and system interface integral structure, it is characterized in that: described adapter comprises self-checking circuit module and system interface adaptation module, described self-checking circuit module comprises DSP main control module, 1553B module, RS422 module, I/O module, power module, and described system interface adaptation module comprises signal condition module, isolation module, the impedance matching module that is arranged on the motherboard.

2. adapter according to claim 1, it is characterized in that: described self-checking circuit module is by separating self check mouth, the existing interconnection of signals with test platform of comprehensive self check cause for gossip, the system interface adaptation module is by separating opening, the existing interconnection of signals with test platform of comprehensive cause for gossip, is connected by the general-purpose interface array between test platform and the adapter.