Alternating current synchronous collecting system and achieving method thereof

A synchronous acquisition, alternating current technology, applied in the direction of using digital measurement technology for measurement, can solve the problem of inability to achieve synchronous acquisition of multiple sampling chips, and achieve the effect of improving communication rate and data capacity, good real-time performance, and high sampling accuracy

Inactive Publication Date: 2013-04-10
AEROSPACE SCI & IND SHENZHEN GROUP
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an AC synchronous acquisition system and its implementation method for realizing synchronous acquisition of multiple analog-to-dig

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  • Alternating current synchronous collecting system and achieving method thereof
  • Alternating current synchronous collecting system and achieving method thereof
  • Alternating current synchronous collecting system and achieving method thereof

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of 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.

[0036] see figure 1 , figure 1 is a schematic structural diagram of the AC synchronous acquisition system of the present invention, as figure 1 As shown, the system includes a signal acquisition unit 100, a GPS clock synchronization unit 200, and a signal processing unit 300 connected to the signal acquisition unit 100 and the GPS clock synchronization unit 200 respectively, and the signal processing unit 300 is composed of a plurality of An analog-to-digital converter and a main controller connected to each analog-to-digital converter by a data bus respectively, in this embodiment, the data bus ...

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Abstract

The invention discloses an alternating current synchronous collecting system and an achieving method thereof. The alternating current synchronous collection system comprises a signal collecting unit, a global position system (GPS) clock synchronization unit, a signal processing unit and a main controller. The signal collecting unit is used for carrying out level switch for to-be-sampled alternating current parameters respectively through a voltage transformer and a current transformer, and inputting the alternating current parameters to each analog-digital converter after carrying out signal conditioning to the alternating current parameters after the level switch. The GPS clock synchronization unit is used for providing synchronous collecting frequency for each analog-digital converter. The signal processing unit is respectively connected with the signal collecting unit and the GPS clock synchronization unit and composed of a plurality of analog-digital converters and the main controller connected with each analog-digital converter through a data bus, wherein each analog-digital converter is used for carrying out analog-digital conversion to the alternating current parameters for generating digital quantity sample data. The main controller is used for reading the sample data through the data bus. According to the alternating current synchronous collection system and the achieving method thereof, sampling accuracy is high, conversion rate is quick, collecting quantity is large, instantaneity is good, and communication speed and data capacity of the system are improved.

Description

technical field [0001] The invention relates to the field of signal acquisition, in particular to an AC synchronous acquisition system and its realization method. Background technique [0002] With the continuous development of my country's power grid integrated automation, the requirements for the grid automation monitoring system are no longer satisfied with the realization of functions, but also require the real-time performance, reliability, correctness and accuracy of telecontrol data. At present, the sampling chip has been released for a long time, and the sampling accuracy and speed are relatively slow; and the acquisition system cannot realize the simultaneous acquisition of multiple sampling chips. Therefore, the traditional data signal acquisition system has low sampling accuracy, slow conversion rate, and limited acquisition volume. And the real-time performance is poor, and its performance is far from meeting the new requirements of the continuous development of ...

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Application Information

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IPC IPC(8): G01R19/25
Inventor 吴立军甘婷婷刘海涛谢国清辛勇军
Owner AEROSPACE SCI & IND SHENZHEN GROUP
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