Synchronous method of distributed device

A distributed and formatted technology, applied in synchronization devices, digital transmission systems, electrical components, etc., can solve problems such as fixed errors and nonlinear errors, and achieve the effect of eliminating nonlinear errors and fixed errors, and improving synchronization accuracy.

Inactive Publication Date: 2014-03-26
AEROSPACE SCI & IND SHENZHEN GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problem of non-linear error or fixed error in the synchronization process of distributed devices in the prior art, and provides a synchronization method for distributed devices that is accurate in synchronization and effectively reduces its synchronization error

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  • Synchronous method of distributed device
  • Synchronous method of distributed device
  • Synchronous method of distributed device

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Embodiment Construction

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] Such as figure 1 As shown, an embodiment of the present invention provides a synchronization method for a distributed device, the distributed device includes a main control unit and a plurality of signal acquisition units connected to the main control unit, and the synchronization method includes the following steps:

[0027] Step S100, according to the IEEE1588 clock synchronization protocol, control a plurality of signal acquisition units and the main control unit to perform time synchronization;

[0028] The IEEE1588 clock synchronization protocol is to synchr...

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Abstract

Disclosed is a synchronous method of a distributed device. The distributed device contains a main control unit and a plurality of signal acquisition units connected with the main control unit. The synchronous method contains the following steps: Step S100, the plurality of signal acquisition unit and the main control unit are controlled for timing and synchronization according to an IEEE1588 clock synchronization protocol; Step S200, the main control unit sends a sampled signal at the beginning of each second, a signal acquired by each signal acquisition unit within each second is respectively numbered, and data acquired by each signal acquisition unit is packaged according to a preset format; and Step S300, the main control unit receives data of the signal acquisition units and controls alignment of data with the same number in different signal acquisition units according to a format, and data packets of the same signal acquisition unit are stored according to the number sequence. By the technical scheme, non-linear errors and fixed errors in the synchronization process are eliminated, and synchronization precision of the distributed device is raised effectively.

Description

technical field [0001] The invention belongs to the field of electric power communication, and in particular relates to a method for synchronizing distributed devices. Background technique [0002] With the rapid development of the power industry today, more and more distributed devices of various power equipment are accepted and used by everyone. Distributed devices are widely used due to their small size, low cost, and good scalability. However, The most important problem restricting the development of distributed devices is the transmission capability of the bus and the synchronization performance of the front-end acquisition. [0003] At present, the main synchronization methods of distributed equipment are command synchronization and hard contact synchronization. Command synchronization means that the main control unit sends commands in a broadcast manner. All front-end acquisition units perform a synchronization after receiving the command. This mode causes nonlinear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L7/00H04L29/08
Inventor 孙忠耀
Owner AEROSPACE SCI & IND SHENZHEN GROUP
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