Acoustic system and method for realizing time synchronization of physical isolation information system

Abstract

The invention provides an acoustic system for realizing time synchronization of a physical isolation information system. The acoustic system comprises an acoustic signal playing module and a plurality of acoustic capturing and processing modules, the acoustic signal playing module can play preset audios; the plurality of acoustic capturing and processing modules can capture and process preset audio segments; the frequency ranges of the audios which can be detected by the plurality of acoustic capturing and processing modules are all larger than the preset frequency range of the audios; at least one acoustic capturing and processing module is installed on each of a plurality of external physical isolation information systems. Through cooperative use of the acoustic signal playing module with a large frequency range and the plurality of acoustic capturing and processing modules, time synchronization among a plurality of physical isolation information systems can be automatically realized with higher precision.

Description

technical field [0001] The invention relates to the technical field of ship information systems, in particular to an acoustic system and method for realizing time synchronization of physically isolated information systems. Background technique [0002] The ship information system is a completely independent and complete small power system. The realization of the monitoring and control functions of the upper layer is completely dependent on the collection of the bottom data, and the accuracy is completely determined by the accuracy of the data. The coordination work and unified action among the nodes of each sub-information system must be carried out on the basis of high-precision time synchronization. [0003] However, the existing technology manually sets the time of multiple physically isolated information systems manually, and the degree of automation is not high; and due to the limitation of manual setting, the time synchronization accuracy of multiple physically isolate...

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Problems solved by technology

[0003] However, the existing technology manually sets the time of multiple physically isolated information systems manually, and the degree of automation is not high; and due to the limitation of manual setting, the time synchronization accuracy of multiple physically isolated information systems is poor, at most It can only reach the millisecond level, which does not meet the needs of higher precision applications

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