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Multi-station networking real-time data interaction method

A technology of real-time data and interactive methods, applied in the direction of data exchange network, digital transmission system, multiplex communication, etc., can solve the problems of poor robustness and achieve strong robustness

Active Publication Date: 2021-04-02
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Abstract
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Problems solved by technology

[0003] This invention provides a real-time data interaction method for multi-station networking, which solves the problem of poor robustness of existing methods

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  • Multi-station networking real-time data interaction method

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Embodiment Construction

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Two-way time comparison is currently the most accurate time comparison method internationally recognized. It is widely used in remote comparison of international high-precision time and frequency values. It has an irreplaceable position in time and frequency measurement transmission and traceability methods. Two-way time comparison uses signal spread spectr...

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Abstract

The invention discloses a multi-station networking real-time data interaction method, and solves the problem of poor robustness of an existing method. The method comprises the following steps: for anith station in a network, measuring link transmission delay with other stations at each measurement moment, adding timestamp information of the measurement moment, establishing sending information framing, and sending the sending information framing; for the ith station in the network, receiving the sending information in real time for framing, and extracting link transmission delay and measurement moment timestamp information related to the receiving station; and after timestamps of signals transmitted and received by the ith station are aligned, calculating the time difference between the station and other stations according to the bidirectional time comparison principle, wherein i is a station serial number in networking, i=1, 2,..., N, N is the total number of stations in networking, and N is greater than or equal to 3. According to the invention, non-centralized real-time time difference measurement among multiple stations can be realized.

Description

technical field [0001] The invention relates to the field of two-way data interaction, in particular to a method for real-time data interaction in a multi-station network. Background technique [0002] At present, two-way time comparison has two data interaction modes: non-networking and networking. No matter which mode, the ultimate goal is to obtain the link propagation delay measured by other stations. The current network comparison is a star working mode with a master station and multiple slave stations. The master station uses a single-channel transmitting and multi-channel receiving device, and the slave station uses a single-channel transmitting and receiving device, so that only the master station can measure And exchange the link propagation delay data with each slave station, the link propagation delay data cannot be measured and exchanged between the slave stations, that is, only the master station can obtain multiple time differences with each slave station, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04J3/06
CPCH04L43/0852H04L43/106H04J3/0661
Inventor 王海峰张升康杨宏雷王学运王宏博易航王艺陶
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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