Method and device for correcting total ammeter readings of turnouts based on least squares method

A technology of least squares and total current, applied in the direction of measuring only current, measuring current/voltage, measuring electrical variables, etc., can solve the problem of large deviation between the displayed value and the actual value of the ammeter interface, and achieve the practical and improved algorithm. The effect of accuracy

Active Publication Date: 2022-01-28
CASCO SIGNAL
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Problems solved by technology

The displayed value and the actual value of the ammeter interface adjusted under a single correction mechanism are prone to large deviations

Method used

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  • Method and device for correcting total ammeter readings of turnouts based on least squares method
  • Method and device for correcting total ammeter readings of turnouts based on least squares method
  • Method and device for correcting total ammeter readings of turnouts based on least squares method

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Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0049] This application proposes a method for correcting the readings of the total ammeter of the turnout based on the least square method, which is realized by developing a corresponding program, such as figure 1 with figure 2 shown, including:

[0050] Step S1: Operate the turnout multiple times, record the displayed current value at the station and the measured current value measured with a multimeter outdoors at each turnout operation, and use the displayed current value and the measured current value at the same operation as a binary data set;

[0051] Step S2: Based on the d...

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Abstract

The present invention relates to a method and equipment for correcting the total ammeter reading of a turnout based on the least squares method, wherein the method includes: step S1: multiple times of turning the turnout, recording the displayed current value of the station and the actual measured current value on the spot each time the turnout is moved, And the displayed current value and the measured current value during the same action are regarded as a binary data set; Step S2: based on the data set obtained for each action combined with the origin of the coordinates, the fitting function is calculated by the least square method; Step S3: When After receiving the first-time corrected switch current value, the first-time corrected switch current value is substituted into the fitting function to obtain the secondary correction result and output. Compared with the prior art, the present invention adopts a method for correcting the readings of the total ammeter of the turnout based on the least square method, and performs secondary correction on the basis of a single correction algorithm, so that the reading of the total current of the turnout can be corrected to a greater extent, which is more accurate. Accurately reflect the total current value of the turnout.

Description

technical field [0001] The invention relates to the field of railway signals, in particular to a method and equipment for correcting the readings of the total ammeter of a turnout based on the least square method. Background technique [0002] The total current of the turnout is an important indicator to reflect whether the turnout operates normally when the turnout is in motion. Different from the single switch current curve, the total switch current reflects the sum of the current values ​​of all switch actions at that moment. [0003] The method of least squares (also known as the method of least squares) is a mathematical optimization technique. It finds the best function fit to the data by minimizing the sum of squared errors. The unknown data can be easily obtained by using the least square method, and the sum of squares of the errors between the obtained data and the actual data can be minimized. Least squares can also be used for curve fitting. Some other optimiz...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00
CPCG01R19/0092
Inventor 余日可何红光李新新高武张杰王玲群张程李春梅
Owner CASCO SIGNAL
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