Intelligent detection system and detection method based on weak current engineering lines

Abstract

The invention discloses an intelligent detection system and a detection method based on a weak current engineering line, relates to the field of weak current line detection, solves the problem of low accuracy in current weak current engineering line detection, comprises an initial inspection analysis module, a line detection module, a detection level determination module and a line assessment module, wherein the initial inspection analysis module is used to analyze the surface condition of the weak current line to be tested, and obtain a normal signal, a pending signal or an abnormal signal through analysis, the detection level determination module is used to analyze the fault condition of the weak current line to be tested, and generate a normal signal, a primary detection signal, a secondary detection signal or an abnormal signal through analysis, the line detection module is used to detect the actual operation condition of the weak current line to be tested, and obtain the real-time voltage value and the real-time current value of the weak current line to be tested, the line assessment module is used to comprehensively evaluate the weak current line to be tested, and obtain the line level of the weak current line to be tested, and the invention realizes accurate monitoring of the weak current engineering line.

Description

Technical Field

[0001] The present invention belongs to the field of weak current line detection, and specifically relates to an intelligent detection system and a detection method based on weak current engineering lines. Background Art

[0002] Weak current engineering lines refer to circuit systems used to transmit low-voltage signals and control equipment in buildings or facilities. It is the core component of weak current engineering and is mainly used to provide functions such as communication, data transmission, security monitoring, audio and video systems, etc. The design and installation of weak current engineering lines need to consider the stability, anti-interference ability, safety and compliance of signal transmission. Usually, low-voltage wires, data cables, optical fibers and other transmission media are used, and they are equipped with corresponding sockets, panels, patch panels and other equipment. Therefore, it is necessary to ensure the reliability, safety and performance of the lines.

[0003] However, at present, when weak current engineering lines are tested, they are not adjusted according to the actual situation of the lines themselves, resulting in a high probability of errors in the test. Since the voltage and current of the weak current lines themselves are low, errors will have a great impact on the test results, leading to completely contradictory results in the test.

[0004] To this end, we propose an intelligent detection system and detection method based on weak current engineering lines. Summary of the invention

[0005] The purpose of the present invention is to propose an intelligent detection system and a detection method based on weak current engineering lines to solve the problems raised in the above background technology.

[0006] In the first aspect, in order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] Intelligent detection system based on weak current engineering lines, including data acquisition module, initial inspection and analysis module, line detection module, detection level determination module, line assessment module and user terminal;

[0008] The data acquisition module is used to collect surface image data and thermal image data corresponding to the weak current line to be tested, and send the surface image data and thermal image data to the initial inspection and analysis module;

[0009] The initial inspection and analysis module is used to analyze the surface conditions of the weak current line to be tested, and obtain a normal signal, a pending signal or an abnormal signal through analysis. The normal signal is sent to the line detection module, the pending signal and the pending area are sent to the detection level determination module, and the abnormal signal is sent to the user terminal;

[0010] The detection level determination module is used to analyze the fault condition of the weak current line to be tested after receiving the pending signal, and generate a normal signal, a primary detection signal, a secondary detection signal or an abnormal signal through analysis, and the normal signal, the primary detection signal or the secondary detection signal is sent to the line detection module, and the abnormal signal is sent to the user terminal;

[0011] The line detection module is used to detect the actual operating conditions of the weak current line to be tested, obtain the real-time voltage value and real-time current value of the weak current line to be tested and send them to the line assessment module; the line assessment module is used to perform a comprehensive assessment on the weak current line to be tested, obtain the line grade of the weak current line to be tested as a primary line, a secondary line or a tertiary line and send it to the user terminal, and the user terminal is used to receive the line grade or abnormal signal of the weak current line to be tested.

[0012] Furthermore, the surface image data is a two-dimensional image of the weak current line to be tested under multiple viewing angles;

[0013] The thermal image data is the infrared radiation emitted by the weak current line to be tested, and the invisible infrared radiation is converted into a visible thermal image.

[0014] Furthermore, the analysis process of the initial inspection analysis module is as follows:

[0015] Acquire thermal image data corresponding to the weak current line to be tested, and obtain a thermal image of the weak current line to be tested;

[0016] Divide the thermal imaging image corresponding to the weak current line to be tested into a weak current line area and an environmental area;

[0017] Obtain the pixel value of each pixel point corresponding to the environment area. If the pixel value corresponding to the environment area has a mode, the corresponding mode is recorded as the first environment pixel value. If the pixel value corresponding to the environment area does not have a mode, the pixel values ​​of all the pixels in the environment area are added and averaged to obtain the first environment pixel value.

[0018] The pixel value of each pixel point in the weak current line area is compared with the first pixel value, and the pixel difference value corresponding to each pixel point in the weak current line area is calculated by the formula, and the specific formula is as follows:

[0019] XCYn={|RXSn-RXSy|, |GXSn-GXSy|, |BXSn-BXSy|}; wherein RXSy is the R value component corresponding to the first pixel value, GXSy is the G value component corresponding to the first pixel value, and BXSy is the B value component corresponding to the first pixel value; RXSn is the R value component of the pixel point in the weak current line area, GXSn is the G value component of the pixel point in the weak current line area, BXSn is the B value component of the pixel point in the weak current line area, and n is the number of the pixel point in the weak current line area.

[0020] Furthermore, the analysis process of the initial inspection analysis module also includes the following:

[0021] Compare the pixel difference value of each pixel point in the weak current line area with the standard difference value;

[0022] If the pixel difference value of the corresponding pixel point in the weak current line area is less than or equal to the first standard difference value, the corresponding pixel point is recorded as a normal pixel point;

[0023] If the pixel difference value of the corresponding pixel point in the weak current line area is greater than the first standard difference value and less than or equal to the second standard difference value, the corresponding pixel point is recorded as a pending pixel point;

[0024] If the pixel difference value of the corresponding pixel point in the weak current line area is greater than the second standard difference value, the corresponding pixel point is recorded as an abnormal pixel point;

[0025] If there are only normal pixels, or there are undetermined pixels but the area of ​​the region formed by the undetermined pixels is smaller than the preset area, a normal signal is generated;

[0026] If the area of ​​the undetermined region formed by the undetermined pixels is greater than or equal to the preset area, and the abnormal pixels form

[0027] If the area of ​​the region is smaller than the preset region, the region formed by the undetermined pixels is recorded as the undetermined region, and a undetermined signal is generated at the same time;

[0028] If the area formed by the abnormal pixels is greater than or equal to the preset area, an abnormal signal is generated.

[0029] Furthermore, the determination process of the detection level determination module is specifically as follows:

[0030] Obtain the undetermined area corresponding to the weak current line to be tested, and then obtain a two-dimensional image of the radiation range corresponding to the undetermined area;

[0031] The two-dimensional images of the area to be determined at multiple viewing angles are sequentially spliced ​​to obtain an equivalent surface expansion image corresponding to the area to be determined;

[0032] Identify the outer surface expansion diagram corresponding to the area to be determined;

[0033] If the recognition result is black, a normal signal is generated;

[0034] If the recognition result is white, the corresponding undetermined area is recorded as a primary detection area and a primary detection signal is generated;

[0035] If the recognition result is red or blue, the corresponding undetermined area is recorded as a secondary detection area and a secondary detection signal is generated;

[0036] If the recognition result is orange, an abnormal signal is generated.

[0037] Furthermore, the detection process of the line detection module is specifically as follows:

[0038] Obtain a normal signal, a primary detection signal or a secondary detection signal corresponding to the weak current line to be tested;

[0039] If it is a normal signal, a set of voltmeters and ammeters are installed at any position of the weak current line to be tested to measure the real-time voltage value SDYi and real-time current value SDLi of the corresponding weak current line to be tested;

[0040] If it is a first-level detection signal, the location of the first-level detection area is obtained, and a detection point is randomly selected in the first-level detection area, and then y detection points i are set at equal intervals along the weak current line to be tested with the detection point as the center, i=1, 2, ..., y, y is a positive integer, and then the real-time voltage value SDY1i and the real-time current value SDL1i corresponding to the weak current line to be tested at different detection points are obtained through a voltmeter and an ammeter;

[0041] If it is a secondary detection signal, the location of the secondary detection area is obtained, and a detection point is randomly selected in the secondary detection area. Then, with the detection point as the center, e detection points i are set at equal intervals along the weak current line to be tested, where i=1, 2,..., e, and e is a positive integer. Then, the real-time voltage value SDY2i and the real-time current value SDL2i corresponding to the weak current line to be tested at different detection points are obtained through a voltmeter and an ammeter; wherein, y<e.

[0042] Furthermore, when the weak current line to be tested has both a normal signal and a first-level detection signal, the detection is performed according to the detection standard corresponding to the first-level detection signal;

[0043] When the weak current line to be tested has both the primary detection signal and the secondary detection signal, the detection is performed according to the detection standard corresponding to the secondary detection signal;

[0044] When the weak current line to be tested corresponds to a normal signal, a primary detection signal and a secondary detection signal at the same time, the detection is performed according to the detection standard corresponding to the secondary detection signal.

[0045] Furthermore, the evaluation process of the line evaluation module is as follows:

[0046] Obtain the real-time current value and real-time voltage value corresponding to the weak current line to be tested;

[0047] The line grade value of the weak current line to be tested in the first-level detection area is calculated by the formula. The specific formula is as follows:

[0048] ; In the formula, A1 and A2 are fixed proportional coefficients, and the values ​​of A1 and A2 are both greater than zero; BDY represents the standard voltage value, and BDL represents the standard current value;

[0049] Similarly, through the formula Calculate the line grade value of the weak current line to be tested corresponding to the secondary detection area, and obtain the line grade value of the weak current line to be tested corresponding to the normal signal by the formula XDJ=100 / [A1×|SDY-BDY|+A2×|SDL-BDL|];

[0050] If the line level value of the weak current line to be tested is greater than or equal to the first level threshold, the line level of the weak current line to be tested is recorded as a first-level line;

[0051] If the line level value of the weak current line to be tested is less than the first level threshold and greater than or equal to the second level threshold, the line level of the weak current line to be tested is recorded as a secondary line;

[0052] If the line grade value of the weak current line to be tested is less than the second grade threshold, the line grade of the weak current line to be tested is recorded as a third-grade line.

[0053] Further, the first level threshold is greater than the second level threshold;

[0054] The performance of the primary line corresponding to the weak current line to be tested is better than that of the secondary line corresponding to the weak current line to be tested;

[0055] The performance of the secondary line corresponding to the weak current line to be tested is better than the performance of the tertiary line corresponding to the weak current line to be tested.

[0056] Secondly, an intelligent detection method based on weak current engineering lines is also proposed. The specific method is as follows:

[0057] Step S1, collecting surface image data and thermal image data corresponding to the weak current line to be tested;

[0058] Step S2, analyzing the surface condition of the weak current line to be tested, and obtaining a normal signal, a pending signal or an abnormal signal through analysis;

[0059] Step S3, if the pending signal is generated, the fault condition of the weak current line to be tested is analyzed to obtain a normal signal, a primary detection signal, a secondary detection signal or an abnormal signal;

[0060] Step S4, if a normal signal, a primary detection signal or a secondary detection signal is generated, the actual operation of the weak current line to be tested is detected, and the real-time voltage value and the real-time current value of the weak current line to be tested are obtained;

[0061] Step S5, comprehensively evaluating the weak current line to be tested in combination with the real-time voltage value and the real-time current value, and determining whether the weak current line to be tested is a primary line, a secondary line, or a tertiary line.

[0062] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0063] The present invention first analyzes the surface condition of the weak current line to be tested to obtain a normal signal, a pending signal or an abnormal signal, sends the normal signal to a line detection module, sends the pending signal and the pending area to a detection level determination module, sends the abnormal signal to a user terminal, and then analyzes the fault condition of the weak current line to be tested. If a fault condition is generated, the abnormal signal is sent to the user terminal. If a normal signal, a first-level detection signal or a second-level detection signal is generated, the actual operation condition of the weak current line to be tested is detected to obtain the real-time voltage value and the real-time current value of the weak current line to be tested, and the real-time voltage value and the real-time current value are combined to perform a comprehensive evaluation on the weak current line to be tested, and the line level of the weak current line to be tested is obtained as a first-level line, a second-level line or a third-level line. The present invention realizes accurate monitoring of weak current engineering lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0065] Figure 1 It is the overall system block diagram of the present invention.

[0066] Figure 2 A schematic diagram of the radiation range corresponding to the weak current line to be tested in the present invention.

[0067] Figure 3 It is a structural schematic diagram of the weak current line to be tested in the present invention.

[0068] Figure 4 The figure is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0069] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] Example 1, please refer to Figure 1-Figure 3 As shown, the technical solution provided by the present invention is: an intelligent detection system based on weak current engineering lines, including a data acquisition module, a preliminary inspection and analysis module, a line detection module, a detection level determination module, a line assessment module and a user terminal;

[0071] In this embodiment, the weak current engineering line to be monitored is defined as the weak current line to be tested; in the description of this embodiment, it is assumed that all the weak current lines to be tested are common weak current lines to be tested, that is, composed of an inner conductor, an insulating layer, a shielding layer and a protective cover;

[0072] The data acquisition module is used to collect surface image data and thermal image data corresponding to the weak current line to be tested, and send the surface image data and thermal image data to the initial inspection and analysis module, wherein the surface image data is specifically a two-dimensional image of the weak current line to be tested under multiple viewing angles, wherein the thermal image data is specifically obtained by collecting infrared radiation emitted by the weak current line to be tested, and converting the invisible infrared radiation into a visible thermal image, in which different colors are used to reflect different temperatures, and areas with higher temperatures are presented as warm tones (red or orange), and areas with lower temperatures are presented as cool tones (blue or green);

[0073] The database is used to store the standard voltage value and the standard current value corresponding to the weak current line to be tested, and send the standard voltage value and the standard current value to the line assessment module;

[0074] The initial inspection and analysis module is used to analyze the surface conditions of the weak current line to be tested. The specific analysis process is as follows:

[0075] Acquire thermal image data corresponding to the weak current line to be tested, and obtain a thermal image of the weak current line to be tested;

[0076] The thermal imaging image corresponding to the weak current line to be tested is divided into a weak current line area and an environmental area. Since the thermal imaging data of the environment in which the weak current line is located will inevitably be collected when collecting the thermal imaging data corresponding to the weak current line to be tested, the thermal imaging image is divided into a weak current line area and an environmental area according to the appearance shape of the weak current line to be tested;

[0077] Obtain the pixel value (RGB value) of each pixel point corresponding to the environment area. If the pixel value corresponding to the environment area has a mode, the corresponding mode is recorded as the first environment pixel value. If the pixel value corresponding to the environment area does not have a mode, the pixel values ​​of all pixels in the environment area are added and averaged to obtain the first environment pixel value.

[0078] The pixel value of each pixel point in the weak current line area is compared with the first pixel value, and the pixel difference value corresponding to each pixel point in the weak current line area is calculated by the formula, and the specific formula is as follows:

[0079] XCYn={|RXSn-RXSy|, |GXSn-GXSy|, |BXSn-BXSy|}; wherein RXSy is the R value component corresponding to the first pixel value, GXSy is the G value component corresponding to the first pixel value, and BXSy is the B value component corresponding to the first pixel value; RXSn is the R value component of the pixel point in the weak current line area, GXSn is the G value component of the pixel point in the weak current line area, and BXSn is the B value component of the pixel point in the weak current line area; n is the number of the pixel point in the weak current line area;

[0080] Compare the pixel difference value of each pixel point in the weak current line area with the standard difference value;

[0081] If the pixel difference value of the corresponding pixel point in the weak current line area is less than or equal to the first standard difference value, the corresponding pixel point is recorded as a normal pixel point;

[0082] If the pixel difference value of the corresponding pixel point in the weak current line area is greater than the first standard difference value and less than or equal to the second standard difference value, the corresponding pixel point is recorded as a pending pixel point;

[0083] If the pixel difference value of the corresponding pixel point in the weak current line area is greater than the second standard difference value, the corresponding pixel point is recorded as an abnormal pixel point;

[0084] If there are only normal pixels, or there are undetermined pixels but the area of ​​the area formed by the undetermined pixels is smaller than the preset area, a normal signal is generated and sent to the line detection module;

[0085] If the area of ​​the undetermined region formed by the undetermined pixels is greater than or equal to the preset area, and the abnormal pixels form

[0086] If the area of ​​the region is smaller than the preset area, the area formed by the undetermined pixels is recorded as the undetermined area, and a undetermined signal is generated at the same time. The undetermined signal and the undetermined area corresponding to the weak current line to be tested are sent to the detection level determination module;

[0087] If the area of ​​abnormality formed by abnormal pixels is greater than or equal to the preset area, an abnormal signal is generated and sent to the user terminal;

[0088] See also Figure 2-Figure 3 As shown, the detection level determination module is used to analyze the fault condition of the weak current line to be tested after receiving the pending signal. The specific analysis process is as follows:

[0089] Get the undetermined area corresponding to the weak current line to be tested, and then get the two-dimensional image of the radiation range corresponding to the undetermined area, such as Figure 2 As shown, the radiation range of the area to be determined is the radiation range formed by taking the geometric center of the area to be determined as the origin and twice the corresponding longest side of the area to be determined as the radiation radius. The radiation area on the weak line to be tested is the radiation range;

[0090] The two-dimensional images of the area to be determined at multiple viewing angles are sequentially spliced ​​to obtain an equivalent surface expansion image corresponding to the area to be determined;

[0091] Use a pre-trained image recognition model to identify the outer surface expansion image corresponding to the area to be determined; the image recognition model is an existing technology, which performs classification and recognition by learning the features and patterns of the image. The image recognition model can extract color information from the pixel level, automatically learn the distinguishing features of the color through the back propagation algorithm, and then recognize the color results in the image;

[0092] If the recognition result is "black", a normal signal is generated and sent to the line detection module;

[0093] If the recognition result is "white", the corresponding undetermined area is recorded as a primary detection area and a primary detection signal is generated and sent to the line detection module;

[0094] If the recognition result is "red or blue", the corresponding undetermined area is recorded as a secondary detection area and a secondary detection signal is generated and sent to the line detection module;

[0095] If the recognition result is "orange-yellow", an abnormal signal is generated and sent to the user terminal;

[0096] If the identification result is "black", it means that the weak current line to be tested is not damaged; if the identification result is "white", it means that the protective cover of the weak current line to be tested is damaged and the shielding layer is exposed; if the identification result is "red or blue", it means that both the protective cover and the shielding layer of the line to be tested are damaged and the insulating layer is exposed; if the identification result is "orange-yellow", it means that the protective cover, shielding layer and insulating layer of the line to be tested are damaged and the inner conductor is exposed.

[0097] It should be noted that the color of the above identification result is only a color combination of the weak current line to be tested shown in this embodiment, and it needs to be adjusted accordingly according to the weak current line to be tested actually detected when applied;

[0098] The line detection module is used to detect the actual operating status of the weak current line to be tested. The detection process is as follows:

[0099] Obtain a normal signal, a primary detection signal or a secondary detection signal corresponding to the weak current line to be tested;

[0100] It should be noted that when the weak current line to be tested corresponds to multiple of the normal signal, the first-level detection signal and the second-level detection signal at the same time, since the weak current line to be tested may have more serious damage, it is necessary to perform detection according to the detection standard corresponding to the more serious damage; that is, when the weak current line to be tested corresponds to the normal signal and the first-level detection signal at the same time, the detection is performed according to the detection standard corresponding to the first-level detection signal; when the weak current line to be tested corresponds to the first-level detection signal and the second-level detection signal at the same time, the detection is performed according to the detection standard corresponding to the second-level detection signal; when the weak current line to be tested corresponds to the normal signal, the first-level detection signal and the second-level detection signal at the same time, the detection is performed according to the detection standard corresponding to the second-level detection signal;

[0101] The detection standard corresponding to the normal signal is: install a set of voltmeters and ammeters at any position of the weak current line to be tested, and measure the real-time voltage value SDYi and real-time current value SDLi of the corresponding weak current line to be tested;

[0102] The detection standard corresponding to the first-level detection signal is: obtain the location of the first-level detection area, and randomly select a detection point in the first-level detection area, and then set y detection points i with equal intervals along the weak current line to be tested with the detection point as the center, i=1, 2, ..., y, y is a positive integer, and then obtain the real-time voltage value SDY1i and real-time current value SDL1i corresponding to the weak current line to be tested at different detection points through a voltmeter and an ammeter;

[0103] The detection standard corresponding to the secondary detection signal is: obtain the location of the secondary detection area, randomly select a detection point in the secondary detection area, and then set e detection points i with equal intervals along the weak current line to be tested with the detection point as the center, i=1, 2, ..., e, e is a positive integer, and then obtain the real-time voltage value SDY2i and real-time current value SDL2i corresponding to the weak current line to be tested at different detection points through a voltmeter and an ammeter; wherein y<e;

[0104] The line detection module sends the real-time voltage value and the real-time current value corresponding to the weak current line to be tested to the line assessment module;

[0105] The line evaluation module is used to comprehensively evaluate the performance of the weak current line to be tested. The evaluation process is as follows:

[0106] Obtain the real-time current value and real-time voltage value corresponding to the weak current line to be tested;

[0107] The line grade value of the weak current line to be tested in the first-level detection area is calculated by the formula. The specific formula is as follows:

[0108] ; In the formula, A1 and A2 are fixed proportional coefficients, and the values ​​of A1 and A2 are both greater than zero; BDY represents the standard voltage value, and BDL represents the standard current value;

[0109] Similarly, through the formula Calculate the line grade value of the weak current line to be tested corresponding to the secondary detection area;

[0110] The line level value of the weak current line to be tested corresponding to the normal signal is calculated by the formula XDJ=100 / [A1×|SDY-BDY|+A2×|SDL-BDL|];

[0111] If the line level value of the weak current line to be tested is greater than or equal to the first level threshold, the line level of the weak current line to be tested is recorded as a first-level line;

[0112] If the line level value of the weak current line to be tested is less than the first level threshold and greater than or equal to the second level threshold, the line level of the weak current line to be tested is recorded as a secondary line;

[0113] If the line level value of the weak current line to be tested is less than the second level threshold, the line level of the weak current line to be tested is recorded as a third-level line;

[0114] Among them, the first level threshold is greater than the second level threshold, the performance of the first-level line corresponding to the weak current line to be tested is better than the performance of the second-level line corresponding to the weak current line to be tested, and the performance of the second-level line corresponding to the weak current line to be tested is better than the performance of the third-level line corresponding to the weak current line to be tested;

[0115] The line assessment module sends the line level of the weak current line to be tested to the user terminal, and the user terminal is used to receive the line level or abnormal signal of the weak current line to be tested, and is used to obtain the status of the weak current line to be tested through the user terminal and make corresponding responses;

[0116] For example, for the first-level and second-level lines, it is determined that the performance of the weak-current lines to be tested is excellent and no response is required; for the weak-current lines corresponding to the third-level lines, it is determined that the weak-current lines are defective and maintenance personnel are dispatched for repair; for the weak-current lines to be tested corresponding to the abnormal signals, it is determined that the weak-current lines are damaged and cannot be used, and the weak-current lines in the corresponding area are replaced.

[0117] In this application, if corresponding calculation formulas appear, the above calculation formulas are all dimensionless and take their numerical calculations. The weight coefficients, proportional coefficients and other coefficients in the formulas are set to a result value obtained by quantifying each parameter. The size of the weight coefficient and the proportional coefficient can be determined as long as it does not affect the proportional relationship between the parameter and the result value.

[0118] Example 2, please refer to Figure 4 As shown, based on another concept of the same invention, an intelligent detection method based on weak current engineering lines is now proposed, and the method includes the following steps:

[0119] Step S1, collecting surface image data and thermal image data corresponding to the weak current line to be tested;

[0120] Step S2, analyzing the surface condition of the weak current line to be tested, and obtaining a normal signal, a pending signal or an abnormal signal through analysis;

[0121] Step S3, if the pending signal is generated, the fault condition of the weak current line to be tested is analyzed to obtain a normal signal, a primary detection signal, a secondary detection signal or an abnormal signal;

[0122] Step S4, if a normal signal, a primary detection signal or a secondary detection signal is generated, the actual operation of the weak current line to be tested is detected, and the real-time voltage value and the real-time current value of the weak current line to be tested are obtained;

[0123] Step S5, comprehensively evaluating the weak current line to be tested in combination with the real-time voltage value and the real-time current value, and determining whether the weak current line to be tested is a primary line, a secondary line, or a tertiary line.

[0124] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The intelligent detection system based on weak current engineering lines is characterized by: It includes data acquisition module, initial inspection and analysis module, line detection module, detection level determination module, line assessment module and user terminal; The data acquisition module is used to collect surface image data and thermal image data corresponding to the weak current line to be tested, and send the surface image data and thermal image data to the initial inspection and analysis module; The initial inspection and analysis module is used to analyze the surface conditions of the weak current line to be tested, and obtain a normal signal, a pending signal or an abnormal signal through analysis. The normal signal is sent to the line detection module, the pending signal and the pending area are sent to the detection level determination module, and the abnormal signal is sent to the user terminal; The analysis process of the initial inspection analysis module is as follows: Acquire thermal image data corresponding to the weak current line to be tested, and obtain a thermal image of the weak current line to be tested; Divide the thermal imaging image corresponding to the weak current line to be tested into a weak current line area and an environmental area; Obtain the pixel value of each pixel point corresponding to the environment area. If the pixel value corresponding to the environment area has a mode, the corresponding mode is recorded as the first pixel value. If the pixel value corresponding to the environment area does not have a mode, the pixel values ​​of all the pixels in the environment area are added and averaged to obtain the first pixel value. The pixel value of each pixel point in the weak current line area is compared with the first pixel value, and the pixel difference value corresponding to each pixel point in the weak current line area is calculated by the formula, and the specific formula is as follows: XCYn={|RXSn-RXSy|, |GXSn-GXSy|, |BXSn-BXSy|}; wherein RXSy is the R value component corresponding to the first pixel value, GXSy is the G value component corresponding to the first pixel value, and BXSy is the B value component corresponding to the first pixel value; RXSn is the R value component of the pixel point in the weak current line area, GXSn is the G value component of the pixel point in the weak current line area, BXSn is the B value component of the pixel point in the weak current line area, and n is the number of the pixel point in the weak current line area; Compare the pixel difference value of each pixel point in the weak current line area with the standard difference value; If the pixel difference value of the corresponding pixel point in the weak current line area is less than or equal to the first standard difference value, the corresponding pixel point is recorded as a normal pixel point; If the pixel difference value of the corresponding pixel point in the weak current line area is greater than the first standard difference value and less than or equal to the second standard difference value, the corresponding pixel point is recorded as a pending pixel point; If the pixel difference value of the corresponding pixel point in the weak current line area is greater than the second standard difference value, the corresponding pixel point is recorded as an abnormal pixel point; If there are only normal pixels, or there are undetermined pixels but the area of ​​the region formed by the undetermined pixels is smaller than the preset area, a normal signal is generated; If the area of ​​the pending region formed by the pending pixels is greater than or equal to the preset area, and the area of ​​the region formed by the abnormal pixels is smaller than the preset area, the region formed by the pending pixels is recorded as the pending region, and a pending signal is generated at the same time; If the area of ​​abnormality formed by abnormal pixels is greater than or equal to the preset area, an abnormal signal is generated; The detection level determination module is used to analyze the fault condition of the weak current line to be tested after receiving the pending signal, and generate a normal signal, a primary detection signal, a secondary detection signal or an abnormal signal through analysis, and the normal signal, the primary detection signal or the secondary detection signal is sent to the line detection module, and the abnormal signal is sent to the user terminal; The line detection module is used to detect the actual operating conditions of the weak current line to be tested, obtain the real-time voltage value and real-time current value of the weak current line to be tested and send them to the line assessment module; the line assessment module is used to perform a comprehensive assessment on the weak current line to be tested, obtain the line grade of the weak current line to be tested as a primary line, a secondary line or a tertiary line and send it to the user terminal, and the user terminal is used to receive the line grade or abnormal signal of the weak current line to be tested.

2. The intelligent detection system based on weak current engineering lines according to claim 1 is characterized in that: The surface image data is a two-dimensional image of the weak current line to be tested under multiple viewing angles; The thermal image data is the infrared radiation emitted by the weak current line to be tested, and the invisible infrared radiation is converted into a visible thermal image.

3. The intelligent detection system based on weak current engineering lines according to claim 1 is characterized in that: The determination process of the detection level determination module is as follows: Obtain the undetermined area corresponding to the weak current line to be tested, and then obtain a two-dimensional image of the radiation range corresponding to the undetermined area; The two-dimensional images of the area to be determined at multiple viewing angles are sequentially spliced ​​to obtain an equivalent surface expansion image corresponding to the area to be determined; Identify the outer surface expansion diagram corresponding to the area to be determined; If the recognition result is black, a normal signal is generated; If the recognition result is white, the corresponding undetermined area is recorded as a primary detection area and a primary detection signal is generated; If the recognition result is red or blue, the corresponding undetermined area is recorded as a secondary detection area and a secondary detection signal is generated; If the recognition result is orange, an abnormal signal is generated.

4. The intelligent detection system based on weak current engineering lines according to claim 1 is characterized in that: The detection process of the line detection module is as follows: Obtain a normal signal, a primary detection signal or a secondary detection signal corresponding to the weak current line to be tested; If it is a normal signal, a set of voltmeters and ammeters are installed at any position of the weak current line to be tested to measure the real-time voltage value SDYi and real-time current value SDLi of the corresponding weak current line to be tested; If it is a first-level detection signal, the location of the first-level detection area is obtained, and a detection point is randomly selected in the first-level detection area, and then y detection points i are set at equal intervals along the weak current line to be tested with the detection point as the center, i=1, 2, ..., y, y is a positive integer, and then the real-time voltage value SDY1i and the real-time current value SDL1i corresponding to the weak current line to be tested at different detection points are obtained through a voltmeter and an ammeter; If it is a secondary detection signal, the location of the secondary detection area is obtained, and a detection point is randomly selected in the secondary detection area. Then, with the detection point as the center, e detection points i are set at equal intervals along the weak current line to be tested, where i=1, 2,..., e, and e is a positive integer. Then, the real-time voltage value SDY2i and the real-time current value SDL2i corresponding to the weak current line to be tested at different detection points are obtained through a voltmeter and an ammeter; wherein, y<e.

5. The intelligent detection system based on weak current engineering lines according to claim 4 is characterized in that: When the weak current line to be tested has both a normal signal and a first-level detection signal, the test is performed according to the detection standard corresponding to the first-level detection signal; When the weak current line to be tested has both the primary detection signal and the secondary detection signal, the detection is performed according to the detection standard corresponding to the secondary detection signal; When the weak current line to be tested corresponds to a normal signal, a primary detection signal and a secondary detection signal at the same time, the detection is performed according to the detection standard corresponding to the secondary detection signal.

6. The intelligent detection system based on weak current engineering lines according to claim 4 is characterized in that: The evaluation process of the line evaluation module is as follows: Obtain the real-time current value and real-time voltage value corresponding to the weak current line to be tested; The line grade value of the weak current line to be tested in the first-level detection area is calculated by the formula. The specific formula is as follows: ; In the formula, A1 and A2 are fixed proportional coefficients, and the values ​​of A1 and A2 are both greater than zero; BDY represents the standard voltage value, and BDL represents the standard current value; Similarly, through the formula Calculate the line grade value of the weak current line to be tested corresponding to the secondary detection area, and obtain the line grade value of the weak current line to be tested corresponding to the normal signal by the formula XDJ=100 / [A1×|SDY-BDY|+A2×|SDL-BDL|]; If the line level value of the weak current line to be tested is greater than or equal to the first level threshold, the line level of the weak current line to be tested is recorded as a first-level line; If the line level value of the weak current line to be tested is less than the first level threshold and greater than or equal to the second level threshold, the line level of the weak current line to be tested is recorded as a secondary line; If the line grade value of the weak current line to be tested is less than the second grade threshold, the line grade of the weak current line to be tested is recorded as a grade three line.

7. The intelligent detection system based on weak current engineering lines according to claim 6 is characterized in that: The first level threshold is greater than the second level threshold; The performance of the primary line corresponding to the weak current line to be tested is better than that of the secondary line corresponding to the weak current line to be tested; The performance of the secondary line corresponding to the weak current line to be tested is better than the performance of the tertiary line corresponding to the weak current line to be tested.

8. An intelligent detection method based on weak current engineering lines is characterized by: Using the intelligent detection system based on weak current engineering lines as described in any one of claims 1 to 7, the method is as follows: Step S1, collecting surface image data and thermal image data corresponding to the weak current line to be tested; Step S2, analyzing the surface condition of the weak current line to be tested, and obtaining a normal signal, a pending signal or an abnormal signal through analysis; Step S3, if the pending signal is generated, the fault condition of the weak current line to be tested is analyzed to obtain a normal signal, a primary detection signal, a secondary detection signal or an abnormal signal; Step S4, if a normal signal, a primary detection signal or a secondary detection signal is generated, the actual operation of the weak current line to be tested is detected, and the real-time voltage value and the real-time current value of the weak current line to be tested are obtained; Step S5, comprehensively evaluating the weak current line to be tested in combination with the real-time voltage value and the real-time current value, and determining whether the weak current line to be tested is a primary line, a secondary line, or a tertiary line.

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