Test system based on IRIG-B (Inter-Range Instrumentation Group-B) code hardware clock synchronization

Abstract

The invention discloses a test system based on IRIG-B (Inter-Range Instrumentation Group-B) code hardware clock synchronization, and belongs to the technical field of hardware clock synchronization. The test system comprises data acquisition cards, a clock server and connection cables between the data acquisition cards and the clock server, wherein the data acquisition cards are provided with IRIG-B code interfaces, and used for receiving time information transmitted in an IRIG-B code form; the clock server is connected with the data acquisition cards through the cables, and can transmit time codes in an IRIG-B format to the data acquisition cards; and the clock server can mark data with time stamps while transmitting time codes of the IRIG-B format to the data acquisition cards, so that accurate hardware clock synchronization of the data acquisition cards is realized. Through adoption of the test system, a timing function is realized by the interfaces on the data acquisition card, and time guarantee is provided for accurate analysis and fault locating of test data. The timing accuracy and the accuracy of data analysis are increased; fault locating is performed accurately; the onboard fault probability is lowered; the data analysis time is shortened; the system security is enhanced; and the system development is shortened.

Description

technical field [0001] The invention belongs to the technical field of hardware time synchronization, and in particular relates to a hardware time synchronization test system based on IRIG-B codes. Background technique [0002] With the rapid development of today's electronic technology, time synchronization has become more and more important. Time code IRIG-B, as an important time synchronization transmission method, has become the preferred standard code type for time system equipment due to its outstanding superior performance, and is widely used in telecommunications, electric power, military and other important industries or departments. [0003] At present, the ground test of the aircraft system is to complete the test and test items of the actual airborne equipment in the ground stage through means such as stimulation and simulation. In the test process, in order to perform time characteristic analysis and fault diagnosis more accurately, it is necessary to strengthe...

AI Technical Summary

Problems solved by technology

[0004] In the test environment, there is seldom a unified clock server to ensure the accuracy of the time. The clock server is mainly used to realize the time system function through software, and its accuracy is not as accurate as hardware time synchronization.

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