Path search algorithm for low frequency signal connection
A path search algorithm and low-frequency signal technology, applied in the field of information, can solve the problem that the global optimal signal connection cannot be guaranteed.
Active Publication Date: 2021-07-06
中国人民解放军海军航空大学航空作战勤务学院
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Problems solved by technology
However, the signal connection in the signal-oriented test system may contain multiple signal channels (such as the DigitalBus connection type in the STD standard), and even a single signal channel generally has multiple signal lines, and different signal channels or signal lines in the switching system Possibly communicated via different relays
The single-source shortest path search algorithm cannot guarantee the global optimum of signal connections
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[0037] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.
[0038] see figure 1 , which shows an automatic test system 100 according to an embodiment of the present invention. Generally, the automatic test system 100 includes a hardware part and a software part. The hardware part includes: a control computer 10, a test instrument 20, a switch system 30, an array interface 40 and a test adapter 50, wherein the switch system 30, as a channel for signal transmission, is responsible for connecting the te...
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The invention discloses a path search algorithm for low-frequency signal connection, which belongs to the technical field of information. The path search algorithm comprises the following steps of setting each relay in a switch system in an automatic test system as a node, and establishing a corresponding relay information data set in a switch database, reading a connected port data set and an unconnected port data set in the corresponding relay information data set through a resource management engine, through the resource management engine, according to the unconnected port data set, calculating to obtain a lowest overhead path, and calling a switching system driving program through the resource management engine to change the working state of each relay in the lowest overhead path so as to form a communicated signal loop. According to the path search algorithm for low-frequency signal connection, a signal path optimization problem is modeled into a dynamic planning problem, the utilization efficiency of a switch system can be effectively improved, and the service life of an automatic test system is prolonged.
Description
technical field [0001] The invention relates to the field of information technology, in particular to a path search algorithm for low-frequency signal connection. Background technique [0002] Automatic test equipment (ATE) can implement signal measurement, analysis, processing, storage and transmission of the object under test, and display and output test results. As a channel for signal transmission, the switch system is responsible for connecting the test point of the device under test to the test instrument, and plays an extremely important role in the automatic test equipment. Reasonable design and use of the switching system can reduce the demand for switching resources of the test equipment on the one hand, reduce the attenuation of the signal in the transmission process on the other hand, and improve the reliability of the automatic test system system. Therefore, the dynamic search and management capabilities of the signal path of the switch system have an important...
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Login to View More IPC IPC(8): G01R31/00G01R31/327
CPCG01R31/00G01R31/327
Inventor 牛双诚文天柱陈育良苏艳琴
Owner 中国人民解放军海军航空大学航空作战勤务学院