A Time Synchronization Method for Oil Pipeline Network Based on Dynamic Compensation and Hierarchical Transfer
A technology of time synchronization and dynamic compensation, applied in advanced technology, character and pattern recognition, time division multiplexing system, etc., can solve the problems of low time synchronization accuracy and low efficiency, improve time synchronization efficiency and reduce initial error , to maintain the effect of stability
Active Publication Date: 2022-06-03
NORTHEASTERN UNIV LIAONING
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[0003] In order to solve the above problems, the present invention provides a time synchronization method for the oil pipeline network based on dynamic compensation and hierarchical transmission, aiming to solve the problems of low time synchronization accuracy and low efficiency of the existing oil pipeline network monitoring stations
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[0049] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. in the attached drawing
[0053]
[0055] The historical data set of the time deviation samples of the nodes to be timed will be generated according to the following steps:
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[0059] Step S002: the timing node receives the data message sent by the timing node, records the receiving time T2, and uses the time T2
[0065] Step S007: Repeat step S001 to step S006 with a time frequency of 1 s to generate a node to be timed
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[0071]
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[0080] Step S201: create a pressure data acquisition counter k=[k
[0085] Step S206: follow the sampling frequency f=[f
[0086] Step S207: Calculate the clock offset rate α.
[0087]
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The invention discloses a method for time synchronization of an oil pipeline network based on dynamic compensation and hierarchical transmission, and belongs to the technical field of time synchronization of the oil pipeline network. Divide each clock node on the oil pipeline network according to the order of time synchronization; use the external time server as the timing node to provide the initial standard time for the clock nodes of the entire oil pipeline network, and take the clock node that is determined to perform time synchronization first as the timing node. The waiting node obtains standard time information from the timing node, and then dynamically compensates the local clock according to the obtained standard time to complete the time synchronization of the first-level clock node; then the first-level clock node is used as the timing node, and will be determined as the The clock nodes that perform time synchronization sequentially are used as timing nodes to complete the time synchronization of the second-level clock nodes; and so on, complete a time synchronization of all clock nodes according to the hierarchical transfer synchronization method. The accuracy and efficiency of the time synchronization of the oil pipeline network are improved.
Description
A Time Synchronization Method of Oil Pipeline Network Based on Dynamic Compensation and Staged Transfer technical field The invention belongs to the oil pipeline network time synchronization technical field, be specifically related to a kind of based on dynamic compensation and graded transmission A method for time synchronization of oil pipeline network. Background technique In the process of oil transportation, when the transmission pipeline ruptures and causes leakage failure, if the Accurately locating the leak point will result in a large number of casualties and economic losses. However, the location accuracy of the leak point location is very high. To a large extent depends on whether the data monitored by each monitoring station of the long-distance pipeline network is at the same time, so the time synchronization is very important. The safety monitoring of the pipeline network is very important. my country's oil pipelines are generally more than 1,000 kilo...
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IPC IPC(8): H04J3/06G06K9/62
CPCH04J3/0667H04J3/0682G06F18/22G06F18/24147Y02D30/70
Inventor 胡旭光马大中孟冠军张化光刘金海王晨阳高余贾玲玲
Owner NORTHEASTERN UNIV LIAONING
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