General adaptive assembly for interface and signal path planning method based on adaptive assembly

A signal and interface technology, applied in the field of automatic testing, can solve the problems of high bandwidth requirements of signal channels, low degree of automation, and small scale of signal routing, and achieve the effects of improving scale and expansion capabilities, enhancing impedance matching, and prolonging service life

Active Publication Date: 2015-04-15
BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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AI Technical Summary

Problems solved by technology

At present, the industry is researching the universal technology of application interface adaptation. Basically, the automatic switching of signals is realized through matrix switches, but the scale of signal routing is small and the degree of automation is low. At the same time, there are various signals of circuit units, especially various digital signals. And pulse signals, which have high requirements on the bandwidth of the signal channel, these problems may seriously affect the application of ATE in the field of circuit unit testing

Method used

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  • General adaptive assembly for interface and signal path planning method based on adaptive assembly
  • General adaptive assembly for interface and signal path planning method based on adaptive assembly
  • General adaptive assembly for interface and signal path planning method based on adaptive assembly

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0032] figure 1 It is a block diagram of the overall configuration of the present invention. The row matrix is ​​one 8*32 matrix switch, the column matrix is ​​n blocks of 8*32 matrix switches connected in series, the row matrix and the column matrix are connected back to back, and the common 8 channels are used as the analog bus 8 channels bus1~bus8, and the composition is based on the analog bus 32*32n switch network. The switch network based on the analog bus is connected to n pieces of 3-to-1 signal selection boards, and finally realizes the adaptation of analog resources and digital resources to 32n user ports.

[0033] figure 2 Realize the schematic block diagram for the row and column matrix switches. The row and column matrix switches are composed of four 8*8 unit matrices. In this matrix, an additional control switch is added after each column...

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Abstract

The invention discloses a general adaptive assembly for a large-scale interface and a signal path planning method based on the adaptive assembly. A 32*8 (line*row) row matrix switch and n 8*32 (line*row) line matrix switches are connected in a back-to-back way; common 8 channels serve as analog bus 8 channels, a 32*32n switch network based on an analog bus is formed, the scale of the adaptive assembly is expanded, and the expansion capacity of the adaptive assembly is improved; a matched resistance selecting circuit is arranged in the switch network, a user can be allowed to select resistance access circuits with different resistance values according to testing equipment and the attribute of a load, and impedance matching between an instrument and the load is improved; according to a path planning method based on the general adaptive assembly provided by the invention, a channel with the minimum using frequency is selected during path planning at each time, and the using frequency of a control switch in each channel is balanced, so that the service life of the whole switch network is prolonged.

Description

technical field [0001] The invention relates to the technical field of automatic testing, in particular to a large-scale interface general adaptation combination and a signal path planning method based on the adaptation combination. Background technique [0002] With the emphasis on the application of ATE to strengthen the maintenance and support of equipment by various military branches, and the development trend of ATE towards miniaturization, integration and generalization, ATE (Automatic Test Equipment) equipment will test various signal types and various If there is a circuit unit with a connector interface, the problem of interface adaptation will become more and more prominent. In the past, automatic test equipment used a UUT (Unit Under Test) to configure an adapter board. If this method is used to complete the test of electronic equipment such as radar, it will need to configure thousands of adapter boards. The quantity is extremely large, and the adaptation cost i...

Claims

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Application Information

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IPC IPC(8): G01R31/28
Inventor 王宏伟马晓姣郇黎明任大鹏周龙张鹏
Owner BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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