CN-121656810-B - Multi-channel detection circuit, method, apparatus and computer program product

CN121656810BCN 121656810 BCN121656810 BCN 121656810BCN-121656810-B

Abstract

The application discloses a multi-channel detection circuit, a multi-channel detection method, multi-channel detection equipment and a multi-channel detection computer program product, which relate to the technical field of analog circuit detection, wherein the multi-channel detection circuit comprises a channel module integrated with a plurality of analog channel units, a control module and a reference signal generation module; the control module is set to acquire the current channel identifier, determines the analog channel unit corresponding to the current channel identifier from all analog channel units as a target channel unit, detects a reference signal according to the target channel unit to obtain a detection reference signal of the target channel unit, and the reference signal generation module generates a standard reference signal of the target channel unit under the drive of the control module and sends the standard reference signal to the control module so as to enable the control module to determine the channel running state of the target channel unit according to the detection reference signal and the standard reference signal. The application aims to realize reliability detection of a multichannel analog circuit.

Inventors

ZHENG JIAJUN

Assignees

合肥中科采象科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (8)

1. A multi-channel detection circuit, the multi-channel detection circuit comprising: A channel module including a plurality of analog channel units; The control module is connected with the channel module, and is configured to acquire a current channel identifier, determine an analog channel unit corresponding to the current channel identifier from all analog channel units as a target channel unit, and detect a reference signal according to the target channel unit to obtain a detection reference signal of the target channel unit; the reference signal generation module is respectively and electrically connected with the target channel unit and the control module, and is configured to generate a standard reference signal of the target channel unit under the drive of the control module and send the standard reference signal to the control module so as to enable the control module to determine the channel running state of the target channel unit according to the detection reference signal and the standard reference signal, The step of determining the channel running state of the target channel unit according to the detection reference signal and the standard reference signal comprises the following steps: Respectively extracting features of the detection reference signal and the standard reference signal to obtain a detection feature vector and a standard feature vector, and determining a difference feature vector between the detection feature vector and the standard feature vector; The channel state diagnosis model comprises a plurality of state class labels of the target channel unit, and the step of determining the channel running state of the target channel unit according to the preset channel state diagnosis model and the difference feature vector comprises the following steps: the method comprises the steps of obtaining a current environment vector of a target channel unit, carrying out vector splicing processing according to the current environment vector and the difference feature vector to obtain a fusion feature vector, determining a dynamic diagnosis threshold value of each state type label according to the current environment vector, carrying out model training on the fusion feature vector through a channel state diagnosis model to obtain an original confidence score of each state type label, obtaining state type probability according to the dynamic diagnosis threshold value and the original confidence score for each state type label, and determining the state type label corresponding to the highest state type probability in all the state type probabilities as a channel running state of the target channel unit.
2. The multi-channel detection circuit of claim 1, wherein the control module comprises a control chip and a data acquisition unit corresponding to each analog channel unit; The control chip is respectively and electrically connected with the reference signal generation module and all the data acquisition units, and each data acquisition unit is respectively and electrically connected with the corresponding analog channel unit.
3. The multi-channel detection circuit of claim 2, wherein the data acquisition unit comprises a two-channel analog switch, a signal conditioning circuit and an analog-to-digital converter electrically connected in sequence; the two-channel analog switch in each data acquisition unit is electrically connected with the corresponding analog channel unit, and the analog-to-digital converter in each data acquisition unit is electrically connected with the control chip.
4. A multi-channel detection method, characterized in that the multi-channel detection method is applied to the multi-channel detection circuit of any one of claims 1 to 3, the multi-channel detection method comprising: Acquiring a current channel identifier, determining an analog channel unit corresponding to the current channel identifier from all analog channel units as a target channel unit, and detecting a reference signal according to the target channel unit to obtain a detection reference signal of the target channel unit; Generating a standard reference signal of the target channel unit through a reference signal generation module, and determining the channel running state of the target channel unit according to the detection reference signal and the standard reference signal, The step of determining the channel running state of the target channel unit according to the detection reference signal and the standard reference signal comprises the following steps: Respectively extracting features of the detection reference signal and the standard reference signal to obtain a detection feature vector and a standard feature vector, and determining a difference feature vector between the detection feature vector and the standard feature vector; The channel state diagnosis model comprises a plurality of state class labels of the target channel unit, and the step of determining the channel running state of the target channel unit according to the preset channel state diagnosis model and the difference feature vector comprises the following steps: the method comprises the steps of obtaining a current environment vector of a target channel unit, carrying out vector splicing processing according to the current environment vector and the difference feature vector to obtain a fusion feature vector, determining a dynamic diagnosis threshold value of each state type label according to the current environment vector, carrying out model training on the fusion feature vector through a channel state diagnosis model to obtain an original confidence score of each state type label, obtaining state type probability according to the dynamic diagnosis threshold value and the original confidence score for each state type label, and determining the state type label corresponding to the highest state type probability in all the state type probabilities as a channel running state of the target channel unit.
5. The multi-channel detection method of claim 4, wherein the step of obtaining the current environment vector of the target channel unit comprises: acquiring temperature data and humidity data of the environment where the target channel unit is located and accumulated operation time of equipment corresponding to the target channel unit; and forming the current environment vector based on the temperature data, the humidity data and the accumulated running time of the equipment.
6. The multi-channel detection method according to claim 4, wherein after the step of determining the channel operation state of the target channel unit according to a preset channel state diagnostic model and the difference feature vector, the multi-channel detection method comprises: and determining the next channel identifier of the current channel identifier as the next current channel identifier, and returning to execute the step of determining the analog channel unit corresponding to the current channel identifier from all analog channel units as a target channel unit and the subsequent steps until the channel running states of all analog channel units are detected.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program being configured to implement the steps of the multi-channel detection method according to any one of claims 4 to 6.
8. A computer program product, characterized in that the computer program product comprises a computer program which, when executed by a processor, implements the steps of the multi-channel detection method according to any of claims 4 to 6.

Description

Multi-channel detection circuit, method, apparatus and computer program product Technical Field The present application relates to the field of analog circuit detection technology, and in particular, to a multi-channel detection circuit, a multi-channel detection method, a multi-channel detection device, and a multi-channel detection computer program product. Background Along with the continuous development of electronic equipment to high-precision and long-period stable operation, the reliability detection of the multichannel analog circuit has become a core technical link in the field of signal acquisition and equipment maintenance, and the detection effect directly determines the accuracy of signal acquisition, the reliability of continuous operation of a system and the control of the overall maintenance cost. Currently, reliability detection of multichannel analog circuits in the industry mainly depends on manual intervention testing of external special instruments, or adopts a local detection scheme based on sampling rate and storage depth optimization. However, the above detection means have significant technical drawbacks. The existing local optimization scheme can improve single-point signal quality, but does not realize on-line, self-adaptive and full-channel periodic health state diagnosis and fault early warning aiming at a multi-channel system, so that potential risks such as circuit aging, element failure and the like are difficult to recognize in advance under the condition that the equipment is not stopped, and accurate positioning and traceability analysis of fault types are not realized, so that the real-time monitoring and early warning requirements under the high-reliability continuous operation scene cannot be met. Therefore, how to implement reliability detection of a multichannel analog circuit is a technical problem to be solved at present. Disclosure of Invention The main object of the present application is to provide a multi-channel detection circuit, method, device and computer program product, aiming at realizing the reliability detection of a multi-channel analog circuit. To achieve the above object, the present application provides a multi-channel detection circuit, including: A channel module including a plurality of analog channel units; The control module is connected with the channel module, and is configured to acquire a current channel identifier, determine an analog channel unit corresponding to the current channel identifier from all analog channel units as a target channel unit, and detect a reference signal according to the target channel unit to obtain a detection reference signal of the target channel unit; The reference signal generation module is electrically connected with the target channel unit and the control module respectively, and is configured to generate a standard reference signal of the target channel unit under the drive of the control module, and send the standard reference signal to the control module so that the control module can determine the channel running state of the target channel unit according to the detection reference signal and the standard reference signal. In an embodiment, the control module includes a control chip and a data acquisition unit corresponding to each analog channel unit; The control chip is respectively and electrically connected with the reference signal generation module and all the data acquisition units, and each data acquisition unit is respectively and electrically connected with the corresponding analog channel unit. In one embodiment, the data acquisition unit comprises a two-channel analog switch, a signal conditioning circuit and an analog-to-digital converter which are electrically connected in sequence; the two-channel analog switch in each data acquisition unit is electrically connected with the corresponding analog channel unit, and the analog-to-digital converter in each data acquisition unit is electrically connected with the control chip. In addition, the present application also provides a multi-channel detection method, which is applied to the multi-channel detection circuit, and the multi-channel detection method includes: Acquiring a current channel identifier, determining an analog channel unit corresponding to the current channel identifier from all analog channel units as a target channel unit, and detecting a reference signal according to the target channel unit to obtain a detection reference signal of the target channel unit; And generating a standard reference signal of the target channel unit through a reference signal generation module, and determining the channel running state of the target channel unit according to the detection reference signal and the standard reference signal. In one embodiment, the step of determining the channel operation state of the target channel unit according to the detection reference signal and the standard reference signal includes: Respectively carrying out f