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CN-121995196-A - PLC electric signal relative coordinate calibration method and device and refrigerator power panel thereof

CN121995196ACN 121995196 ACN121995196 ACN 121995196ACN-121995196-A

Abstract

The invention relates to the technical field of power panel detection, and particularly discloses a PLC electric signal relative coordinate calibration method and device and a refrigerator power panel thereof. The method comprises the steps of judging whether a power panel is located at a detection station through a position detection unit, if yes, executing a PLC electric signal interruption test process, identifying a target electronic element based on a first probe contact and obtaining charge information of the target electronic element, mapping the element and the charge information of the element to a preset relative coordinate model, carrying out convolution kernel operation and loss entropy judgment on the charge information through a transducer neural network layer in the model to obtain a virtual circuit loop containing current charge quantity and direction vectors, and finally carrying out compliance judgment on loop parameters and outputting a calibration result. The invention combines accurate positioning, intelligent signal acquisition, space coordinate mapping and deep learning analysis, realizes dynamic and deep detection of the power panel circuit state, can effectively identify hidden faults such as cold joint, parameter drift and the like, and remarkably improves the degree of automation, precision and reliability of detection.

Inventors

  • YE WEIRUI

Assignees

  • 铂瑞(深圳)电子有限公司

Dates

Publication Date
20260508
Application Date
20260126

Claims (8)

  1. 1. The method for calibrating the relative coordinates of the PLC electrical signals is characterized by comprising the following steps of: judging whether the power panel is positioned at a detection station or not through a position detection unit; If yes, executing a PLC electric signal interruption test process, wherein the test process comprises the steps of identifying target electronic elements on the power panel based on a first probe contact, acquiring charge information on the target electronic elements, uploading each target electronic element and the charge information corresponding to each target electronic element to a preset relative coordinate model; Carrying out convolution kernel operation and loss entropy judgment on the charge information of each element through a transducer neural network layer in the relative coordinate model to obtain a virtual circuit loop between each element on a data signal level, wherein the virtual circuit loop comprises current charge quantity and a corresponding direction vector; and carrying out compliance judgment on the current charge quantity of the virtual circuit and the corresponding direction vector of the current charge quantity, and outputting a calibration result.
  2. 2. The method for calibrating relative coordinates of PLC signals according to claim 1, wherein the step of determining, by the position detecting unit, whether the power panel is located at the detecting station comprises: Detecting a positioning mark at the edge of the power panel by a photoelectric sensor arranged on the detection station; And when the photoelectric sensor receives the light signal reflected by the positioning mark, determining the accurate positioning state of the power panel.
  3. 3. The PLC electrical signal relative coordinate calibration method according to claim 1, wherein the step of identifying a target electronic component on the power panel based on the first probe contact and acquiring charge information on the target electronic component comprises: Driving a probe array controlled by a linear stepping motor to move so that the first probe contact is in physical contact with a preset test point on a power panel; Applying a PLC test signal with specific frequency and amplitude to the preset test point; The response of the test signal in the path is monitored by a sampling circuit, identifying the element and obtaining its voltage, current and phase information as charge information.
  4. 4. The method for calibrating relative coordinates of PLC electrical signals according to claim 1, wherein the step of uploading and mapping each target electronic component and its corresponding charge information to a preset relative coordinate model comprises: constructing a two-dimensional coordinate system taking specific physical characteristics of a power panel as an origin as the relative coordinate model; and (3) coordinating the identified element position, and binding the identified element position with the real-time charge information to form a data element with a time stamp.
  5. 5. The method for calibrating relative coordinates of PLC electrical signals according to claim 1, wherein the step of performing convolution kernel operation and loss entropy judgment on the charge information of each element through the transducer neural network layer in the relative coordinates model comprises: inputting the serialized charge information into a transducer encoder, and calculating the feature association degree by using a self-attention mechanism; Extracting local features by using a one-dimensional convolution kernel to generate high-order feature mapping; And calculating a cross entropy loss value between the high-order feature map and the pre-stored qualified sample features, and judging the connectivity of the virtual circuit loop according to the loss value.
  6. 6. The method for calibrating relative coordinates of PLC electrical signals according to claim 1, wherein the step of performing compliance judgment on the current charge amount of the virtual circuit and the corresponding direction vector thereof, and outputting the calibration result comprises: Comparing the current charge quantity with a preset qualified threshold interval, and calculating a space included angle between the direction vector and a preset standard direction vector; And outputting a qualified calibration result when the current charge quantity is in a qualified threshold interval and the space included angle is smaller than or equal to a permissible deviation angle, otherwise, outputting a disqualified calibration result and triggering an alarm.
  7. 7. A method for calibrating relative coordinates of PLC electric signals, for implementing the method according to any one of claims 1 to 6, comprising: The accurate positioning and detecting unit is used for judging whether the power panel is positioned at the detecting station or not through the position detecting unit; The intelligent signal testing and collecting unit is used for executing a PLC electric signal interruption testing process when the power panel is positioned at the detection station, wherein the testing process comprises the steps of identifying target electronic elements on the power panel based on first probe contacts, acquiring charge information on the target electronic elements, uploading and mapping each target electronic element and the charge information corresponding to each target electronic element into a preset relative coordinate model; the signal relation analysis unit is internally provided with a transducer neural network layer and is used for calculating the charge information to obtain a virtual circuit loop; and the compliance judging and outputting unit is used for judging the parameters of the virtual circuit loop and outputting a calibration result.
  8. 8. A power panel of a refrigerator is characterized in that, The power panel is the detected power panel of claim 1; A memory of the power panel stores a computer program, which when executed by a processor, implements the steps of the PLC electrical signal relative coordinate calibration method according to any one of claims 1 to 6.

Description

PLC electric signal relative coordinate calibration method and device and refrigerator power panel thereof Technical Field The invention relates to the technical field of power panels, in particular to a method and a device for calibrating relative coordinates of PLC electric signals and a refrigerator power panel thereof. Background In the field of production and detection of power panels, particularly uninterruptible power panels applied to medical and scientific research freezers, it is important to ensure the correctness and stability of the connection of internal circuit loops. The traditional detection method mainly relies on manually using a universal meter to perform point-to-point on-off test or using a simple on-line tester to perform static parameter measurement, but the methods have low efficiency, depend on the experience of operators seriously, and are difficult to find potential cold joint, internal crack and hidden fault only appearing under high-frequency switch signals. In addition, although the traditional flying probe test realizes automation, the test logic is based on a preset and fixed physical connection relationship, and can not model and verify the dynamic signal integrity and virtual current path of a power panel in a complex working state, especially for the power panel comprising an inverter, an automatic change-over switch and other complex power topologies, the prior art lacks a high-efficiency and intelligent detection scheme capable of simulating the hidden electric relationship between real working conditions and deep excavation elements, so that part of the power panel with hidden defects flows into the market, and finally, the power supply of an ice chest system is possibly interrupted in a key period, and immeasurable loss is brought. Therefore, there is a strong need in the art for an advanced detection method that can dynamically and deeply analyze signals from a power panel and automatically calibrate the logic health of the circuit. Disclosure of Invention The invention aims to overcome the existing defects, and provides a relative coordinate calibration method and device for a PLC electric signal and a refrigerator power panel thereof, which can effectively solve the problems in the background technology. To achieve the above object, the present invention will be further described with reference to the following examples A relative coordinate calibration method of a PLC electric signal comprises the following steps: judging whether the power panel is positioned at a detection station or not through a position detection unit; if the power panel is located at the detection station, a PLC electrical signal interruption test process is executed, and the test process comprises: Identifying a target electronic element on the power panel based on a first probe contact, and acquiring charge information on the target electronic element; uploading and mapping each target electronic element and corresponding charge information thereof to a preset relative coordinate model; Carrying out convolution kernel operation and loss entropy judgment on the charge information of each element through a transducer neural network layer in the relative coordinate model to obtain a virtual circuit loop between each element on a data signal level, wherein the virtual circuit loop comprises current charge quantity and a corresponding direction vector; and carrying out compliance judgment on the current charge quantity of the virtual circuit and the corresponding direction vector of the current charge quantity, and outputting a calibration result. Further, the step of determining, by the position detection unit, whether the power panel is located at the detection station includes: Detecting a positioning mark at the edge of the power panel by a photoelectric sensor arranged on the detection station; And when the photoelectric sensor receives the light signal reflected by the positioning mark, determining the accurate positioning state of the power panel. Further, the step of identifying a target electronic component on the power panel based on the first probe contact and acquiring charge information on the target electronic component includes: Driving a probe array controlled by a linear stepping motor to move so that the first probe contact is in physical contact with a preset test point on a power panel; Applying a PLC test signal with specific frequency and amplitude to the preset test point; The response of the test signal in the path is monitored by a sampling circuit, identifying the element and obtaining its voltage, current and phase information as charge information. Further, the step of uploading and mapping each target electronic component and the corresponding charging information thereof to a preset relative coordinate model includes: constructing a two-dimensional coordinate system taking specific physical characteristics of a power panel as an origin as the relative coordinate mod