Industrial equipment electromechanical installation state monitoring and early warning system

Abstract

The invention discloses an industrial equipment electromechanical installation state monitoring and early warning system, which relates to the technical field of electromechanical installation detection, and comprises a temperature distribution sequence data acquisition module, a temperature gradient uniformity acquisition module, a temperature expansion path acquisition module, a thermal diffusion deviation value acquisition module and an installation defect signal generation module, by analyzing the thermonuclear of the cable crimping terminal at each preset acquisition moment and connecting the thermonuclear to form a temperature expansion path, the system can track the dynamic diffusion process of heat in the terminal, calculate the temperature gradient uniformity and the thermal diffusion deviation value, and deeply evaluate the thermal distribution and the thermal diffusion dynamic state in the crimping terminal, so as to improve the reliability of the cable crimping terminal. Therefore, the system can recognize electromechanical installation state defects which are difficult to find by a traditional method, macroscopically assess the overall installation quality through installation defect signals, judges and generates air pressure early warning signals and eccentric early warning signals, prompts the installation defects in time, and improves the accuracy of monitoring the electromechanical installation state of industrial equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of electromechanical installation detection, and in particular relates to an electromechanical installation status monitoring and early warning system for industrial equipment. Background Art

[0002] During the installation of industrial equipment, cable crimping terminals are common and critical connection components, and their installation quality directly affects the reliability and safety of equipment operation. Currently, common cable crimping terminal quality inspection methods mainly rely on manual pulling, continuity testing or cross-sectional sampling. These methods have the disadvantages of low inspection efficiency, time-consuming and labor-intensive, and destructive nature, making it impossible to conduct a full-coverage, non-destructive survey. Furthermore, they have limitations such as insufficient sampling and untraceable data. Meanwhile, some existing technologies use infrared thermal imaging monitoring, which usually only makes crimping judgments based on the temperature rise threshold under a single steady-state current excitation. This method cannot accurately identify defects in crimping. In addition, existing infrared thermal imaging detection schemes are usually based only on steady-state temperature values, making it difficult to detect minor defects or hidden voids, loose connections, etc., and are not accurate enough in monitoring the electromechanical installation status of industrial equipment, resulting in inaccurate monitoring of the electromechanical installation status of industrial equipment. Therefore, an electromechanical installation status monitoring and early warning system for industrial equipment is proposed. Summary of the Invention

[0003] The purpose of the present invention is to provide an industrial equipment electromechanical installation status monitoring and early warning system, which solves the technical problem that the defects in the crimping cannot be accurately identified, resulting in inaccurate monitoring of the electromechanical installation status of industrial equipment.

[0004] An industrial equipment electromechanical installation status monitoring and early warning system, comprising:

[0005] The temperature distribution sequence data acquisition module acquires the temperature distribution sequence data corresponding to each cable crimping terminal at multiple preset acquisition times t within a preset acquisition time, where t is a different preset acquisition time;

[0006] The temperature gradient uniformity acquisition module generates a three-dimensional temperature point cloud dataset corresponding to each cable crimping terminal, analyzes the three-dimensional temperature point cloud dataset, obtains the temperature gradient uniformity corresponding to each cable crimping terminal, and generates an air pressure warning signal based on the temperature gradient uniformity.

[0007] The temperature expansion path acquisition module analyzes the temperature measurement points of each cable crimping terminal at each preset collection time t hourly, obtains the thermal core corresponding to each cable crimping terminal at each preset collection time t, and obtains the temperature expansion path corresponding to each cable crimping terminal based on the thermal core;

[0008] The thermal diffusion offset value acquisition module analyzes the temperature expansion path and geometric center coordinates corresponding to each cable crimping terminal to obtain the thermal diffusion offset value corresponding to each cable crimping terminal, and generates an eccentricity warning signal based on the thermal diffusion offset value;

[0009] The installation defect signal generation module analyzes and determines the number of cable crimping terminals that have both air pressure warning signals and eccentricity warning signals to generate installation defect signals.

[0010] As a further solution of the present invention, a specific method for obtaining the temperature gradient uniformity corresponding to each cable crimping terminal is as follows:

[0011] First, a target terminal is randomly selected from each cable crimping terminal; the three-dimensional space occupied by the target terminal is divided into a series of regular cubic units, and these cubes are marked as voxels corresponding to the target terminal; for each voxel, the temperature mean corresponding to all temperature measurement points inside it is calculated, and then the temperature value corresponding to each voxel of the target terminal is obtained; the standard deviation of the temperature value corresponding to each voxel of the target terminal is used as the temperature gradient uniformity D1 corresponding to the target terminal; the temperature distribution sequence data of the remaining cable crimping terminals are analyzed in the same analysis method as that for obtaining the temperature gradient uniformity corresponding to the target terminal, and then the temperature gradient uniformity Dj corresponding to each cable crimping terminal is obtained, where j refers to different cable crimping terminals, j = 1, 2, ..., g, where g is the total number of cable crimping terminals, g is a positive integer, and g ≥ 2.

[0012] As a further solution of the present invention: the specific method of determining the generation of the air pressure warning signal is:

[0013] When the gradient uniformity is less than the preset value Y1, no processing is performed; when the gradient uniformity is greater than or equal to the preset value Y1, an air pressure warning signal is generated.

[0014] As a further solution of the present invention, a specific method for obtaining the temperature expansion paths corresponding to each cable crimping terminal is as follows:

[0015] First, a terminal is randomly selected from each cable crimping terminal as the analysis terminal, and the three-dimensional space occupied by the analysis terminal is divided into a series of regular cubic units, and these cubes are marked as different voxels corresponding to the analysis terminal; the temperature measurement points corresponding to the analysis terminal at each preset acquisition time t are obtained, and the center point of the voxel corresponding to the temperature measurement point corresponding to each preset acquisition time t is used as the heat kernel Ht corresponding to the analysis terminal at each preset acquisition time t, and then the coordinates of the center point corresponding to the voxel are the heat kernel coordinates Ht (Xt, Yt, Zt), and the heat kernels Ht corresponding to the analysis terminal at each preset acquisition time t are connected in sequence from front to back according to the preset acquisition time t, so as to obtain the temperature extension path L1 corresponding to the analysis terminal, and the temperature measurement points corresponding to the remaining cable crimping terminals at each preset acquisition time t are analyzed in the same analysis method as that for obtaining the temperature extension path L1 corresponding to the analysis terminal, so as to obtain the temperature extension path Lj corresponding to each cable crimping terminal.

[0016] As a further solution of the present invention: if the temperature measurement point is located on the same boundary line of two voxels, the midpoint of the line connecting the center points of the two voxels is used as the thermal kernel of the corresponding temperature measurement point.

[0017] As a further solution of the present invention, the specific method of obtaining the thermal diffusion offset value corresponding to each cable crimping terminal is as follows:

[0018] During the electromechanical installation or design stage, the geometric center coordinates Cj (xj, yj, zj) corresponding to each cable crimping terminal are obtained through the CAD model, and the thermal core coordinates Ht (Xt, Yt, Zt) corresponding to each preset acquisition time t in the temperature expansion path L1 corresponding to the analysis terminal are obtained from the temperature expansion path acquisition module. The average value of the thermal core coordinates Ht (Xt, Yt, Zt) corresponding to each preset acquisition time t is obtained and used as the path position coordinates W (Xp, Yp, Zp) of the temperature expansion path of the analysis terminal; at the same time, the geometric center coordinates E (Ex, Ey, Ez) corresponding to the analysis terminal are obtained; the vector modulus |V| between the geometric center E of the analysis terminal and the path position W is calculated and used as the thermal diffusion offset value F1 corresponding to the analysis terminal, and the temperature expansion paths and geometric center coordinates corresponding to each of the remaining cable crimping terminals at each preset acquisition time t are analyzed in the same analysis method as that for obtaining the thermal diffusion offset value corresponding to the analysis terminal, thereby obtaining the thermal diffusion offset value Fj corresponding to each cable crimping terminal.

[0019] As a further solution of the present invention, the specific method of generating the eccentricity warning signal according to the thermal diffusion offset value is as follows:

[0020] When the thermal diffusion offset value at the cable crimping terminal is less than 2mm, no processing is performed; if the thermal diffusion offset value is greater than or equal to 2mm, an eccentricity warning signal is generated.

[0021] As a further solution of the present invention: the specific method of obtaining the vector modulus length |V| between the geometric center E of the analysis terminal and the path position W is:

[0022] By formula: The vector modulus length |V| between the geometric center E of the analysis terminal and the path position W is calculated and obtained.

[0023] As a further solution of the present invention: the specific method of determining the generation of the installation defect signal is:

[0024] The number h of cable crimping terminals with both air pressure warning signals and eccentricity warning signals is obtained, and the ratio between it and the total number g of cable crimping terminals is calculated. When the ratio is greater than the preset value 3 / 5, an installation defect signal is generated, otherwise no processing is performed.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The present invention converts and fuses the temperature distribution sequence data of each cable crimping terminal at different preset acquisition moments into a unified three-dimensional coordinate system to form a three-dimensional temperature point cloud data set. For each cable crimping terminal, the temperature mean value in each voxel is calculated, and the standard deviation of the temperature value is used as the temperature gradient uniformity. When the temperature gradient uniformity is less than the preset value, it indicates that the crimping quality is good; otherwise, there may be problems such as empty pressure, bias or virtual connection.

[0027] (2) The present invention analyzes the thermal cores of the cable crimping terminals at each preset acquisition moment and connects them to form a temperature expansion path. By analyzing the temperature expansion path, the thermal diffusion of the cable crimping terminals is further evaluated. By obtaining the temperature expansion path, the system can track the dynamic diffusion process of heat inside the terminal. The real-time tracking of the thermal core and the calculation of the average position can reflect the stability and diffusion pattern of the heat source, further enhancing the ability to identify defects.

[0028] (3) The present invention can deeply evaluate the heat distribution and heat diffusion dynamics inside the crimped terminal by calculating the temperature gradient uniformity and heat diffusion offset value. This enables the system to identify electromechanical installation status defects that are difficult to detect with traditional methods, and to perform a macroscopic evaluation of the overall installation quality based on the installation defect signal. It can also generate air pressure warning signals and eccentricity warning signals, prompt installation defects in a timely manner, avoid equipment operation failures, and avoid false alarms and missed alarms, providing a smarter and more reliable basis for maintenance decisions and improving the accuracy of monitoring the electromechanical installation status of industrial equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the system framework structure of the present invention. DETAILED DESCRIPTION

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1 ,This application provides an industrial equipment electromechanical installation status monitoring and early warning system, including;

[0032] A temperature distribution sequence data acquisition module is provided at each cable crimping terminal of the electromechanical device. An infrared thermal imaging detection device of the same specification is provided. The resolution of the infrared thermal imaging detection device is ≥320×240 and the frame rate is ≥30Hz. When the electromechanical device is powered on, the temperature distribution sequence data corresponding to each cable crimping terminal is acquired at multiple preset acquisition times t within a preset acquisition time. The preset acquisition time is controlled within 5 to 10 seconds. Here, the preset acquisition time is 6 seconds. Multiple preset acquisition times t are obtained within the preset acquisition time. The time interval between each preset acquisition time t is 0.2s. t is a different preset acquisition time, t=1, 2, ..., n, where n is the number of preset acquisition times, n is a positive integer, and n≥2;

[0033] The temperature gradient uniformity acquisition module converts and integrates the temperature distribution sequence data corresponding to each cable crimping terminal at different preset acquisition times t into a unified three-dimensional coordinate system to form a three-dimensional temperature point cloud dataset corresponding to each cable crimping terminal. The three-dimensional temperature point cloud dataset corresponding to each cable crimping terminal is analyzed to obtain the temperature gradient uniformity corresponding to each cable crimping terminal. The specific method is as follows:

[0034] First, a target terminal is randomly selected from each cable crimping terminal. The three-dimensional space occupied by the target terminal is divided into a series of regular cubic units, and these cubes are marked as the voxels corresponding to the target terminal. For each voxel, the temperature mean corresponding to all temperature measurement points within it is calculated, and then the temperature value corresponding to each voxel of the target terminal is obtained. The standard deviation of the temperature value corresponding to each voxel of the target terminal is used as the temperature gradient uniformity D1 corresponding to the target terminal.

[0035] Then, the temperature distribution sequence data of each remaining cable crimping terminal after removing the target terminal are traversed, and the temperature distribution sequence data of each remaining cable crimping terminal are analyzed in the same analysis method as that for obtaining the temperature gradient uniformity corresponding to the target terminal, thereby obtaining the temperature gradient uniformity Dj corresponding to each cable crimping terminal, where j refers to a different cable crimping terminal, j = 1, 2, ..., g, where g is the total number of cable crimping terminals, g is a positive integer, and g ≥ 2;

[0036] When the gradient uniformity is less than the preset value Y1, it indicates that the temperature distribution of the corresponding cable crimping terminal is uniform and the crimping quality is good; when the gradient uniformity is greater than or equal to the preset value Y1, it indicates that there is a large difference in the temperature distribution of the corresponding cable crimping terminal, which may cause air pressure, bias pressure or loose connection problems, and an air pressure warning signal is generated. The specific value of the preset value Y1 here is formulated by relevant personnel based on actual needs;

[0037] An ideal cable crimp terminal produces a relatively uniform temperature distribution, resulting in a smaller gradient uniformity value. Heat diffuses evenly from the resistance point outward. However, defects, weak connections, voids, or localized oxidation in the cable crimp terminal can cause heat to concentrate in a specific area, making the temperature distribution extremely uneven, which in turn leads to a larger gradient uniformity value. For example, if there is a void in the crimp, the current will pass through a smaller effective contact area, causing the resistance in that area to increase, the temperature to rise abnormally, and the overall temperature field to become more volatile.

[0038] The temperature distribution sequence data of each cable crimping terminal at different preset acquisition times are converted and integrated into a unified three-dimensional coordinate system to form a three-dimensional temperature point cloud dataset. For each cable crimping terminal, the mean temperature within each voxel is calculated, and the standard deviation of the temperature value is used as the temperature gradient uniformity. When the temperature gradient uniformity is less than the preset value, it indicates that the crimping quality is good; otherwise, there may be air pressure, bias or false connection problems.

[0039] The temperature expansion path acquisition module analyzes the temperature measurement points of each cable crimping terminal at each preset acquisition time t in the three-dimensional temperature point cloud data set value corresponding to each cable crimping terminal hourly according to each preset acquisition time t to obtain the thermal core corresponding to each cable crimping terminal at each preset acquisition time t. The temperature expansion path corresponding to each cable crimping terminal is obtained by analyzing the thermal core corresponding to each cable crimping terminal at each preset acquisition time t. The specific method is as follows:

[0040] The specific method for obtaining the temperature expansion path corresponding to each cable crimping terminal is as follows:

[0041] First, randomly select one of the cable crimping terminals as the analysis terminal, divide the three-dimensional space occupied by the analysis terminal into a series of regular cubic units, and mark these cubes as different voxels corresponding to the analysis terminal; obtain the temperature measurement points corresponding to the analysis terminal at each preset acquisition time t, and use the center point of the voxel corresponding to the temperature measurement point at each preset acquisition time t as the heat kernel Ht corresponding to the analysis terminal at each preset acquisition time t, and then use the coordinates of the center point corresponding to the voxel as the heat kernel coordinate Ht (Xt, Yt, Zt). If the temperature measurement point is located on the same boundary line of two voxels, then use the midpoint of the line connecting the two voxel centers as the heat kernel of the corresponding temperature measurement point. Connect the heat kernels Ht corresponding to the analysis terminal at each preset acquisition time t in sequence from front to back according to the preset acquisition time t, and thus obtain the temperature extension path L1 corresponding to the analysis terminal. Use the same analysis method as that for obtaining the temperature extension path L1 corresponding to the analysis terminal to analyze the temperature measurement points corresponding to the remaining cable crimping terminals at each preset acquisition time t, and thus obtain the temperature extension path Lj corresponding to each cable crimping terminal.

[0042] By introducing three-dimensional thermal field reconstruction, the system converts two-dimensional thermal imaging data into a three-dimensional temperature point cloud and performs voxel-based analysis. This enables the system to locate and analyze internal defects in spatial dimensions, such as the specific location and degree of eccentricity of cavities, providing richer data support for accurate diagnosis and repair. At each preset acquisition moment, the thermal cores of the cable crimp terminals are analyzed and connected to form a temperature expansion path. By analyzing the temperature expansion path, the thermal diffusion of the cable crimp terminals is further evaluated. By obtaining the temperature expansion path, the system can track the dynamic diffusion process of heat within the terminal. Real-time tracking of the thermal core and calculation of its average position can reflect the stability and diffusion pattern of the heat source, further enhancing the ability to identify defects.

[0043] The thermal diffusion offset value acquisition module obtains the geometric center coordinates of each cable crimping terminal from the three-dimensional temperature point cloud dataset corresponding to each cable crimping terminal. It analyzes the temperature expansion path and geometric center coordinates corresponding to each cable crimping terminal to obtain the thermal diffusion offset value corresponding to each cable crimping terminal. The specific method is as follows:

[0044] The specific method of obtaining the geometric center coordinates corresponding to each cable crimping terminal is as follows:

[0045] During the electromechanical installation or design phase, the geometric center coordinates Cj (xj, yj, zj) corresponding to each cable crimping terminal are obtained through CAD models or actual measurements. The geometric center coordinates are fixed reference points corresponding to each cable crimping terminal.

[0046] The specific method for obtaining the thermal diffusion offset value corresponding to each cable crimping terminal is as follows:

[0047] Obtain the thermal core coordinates Ht(Xt, Yt, Zt) corresponding to each preset acquisition time t in the temperature extension path L1 corresponding to the analysis terminal from the temperature extension path acquisition module, obtain the average value of the thermal core coordinates Ht(Xt, Yt, Zt) corresponding to each preset acquisition time t, and then obtain the average thermal core position of the analysis terminal, which is used as the path position coordinate W(Xp, Yp, Zp) of the temperature extension path of the analysis terminal; at the same time, obtain the geometric center coordinates E(Ex, Ey, Ez) corresponding to the analysis terminal from the geometric center coordinates Cj(xj, yj, zj) corresponding to each cable crimping terminal;

[0048] According to the geometric center coordinates E(Ex, Ey, Ez) of the analysis terminal and the path position coordinates W(Xp, Yp, Zp), the vector modulus length |V| between the geometric center E of the analysis terminal and the path position W is calculated and used as the thermal diffusion offset value F1 corresponding to the analysis terminal;

[0049] By formula: Calculate and obtain the vector modulus length |V| between the geometric center E of the analysis terminal and the path position W;

[0050] The same analysis method as that used to obtain the thermal diffusion offset value corresponding to the analysis terminal is used to analyze the temperature expansion paths and geometric center coordinates corresponding to the remaining cable crimping terminals at each preset acquisition time t, thereby obtaining the thermal diffusion offset value Fj corresponding to each cable crimping terminal;

[0051] When the thermal diffusion offset value at the cable crimping terminal is less than 2mm, it indicates that the quality of the corresponding cable crimping terminal is good; if the thermal diffusion offset value is greater than or equal to 2mm, an eccentricity warning signal is generated, which clearly indicates that the corresponding cable crimping terminal has crimping eccentricity or obvious voids. This 2mm is an empirical threshold that can be adjusted according to actual applications and accuracy requirements.

[0052] Embodiment 2: As the embodiment 2 of the present invention, when the present application is specifically implemented, compared with embodiment 1, the technical solution of this embodiment differs from embodiment 1 only in that this embodiment further includes an installation defect signal generating module;

[0053] The installation defect signal generation module analyzes and determines the number of cable crimping terminals with both air pressure warning signals and eccentricity warning signals to generate installation defect signals. The specific method is as follows:

[0054] Obtain the number h of cable crimping terminals with both air pressure warning signals and eccentricity warning signals, and calculate the ratio between this number and the total number g of cable crimping terminals. If the ratio is greater than a preset value of 3 / 5, an installation defect signal is generated; otherwise, no action is taken.

[0055] By adopting multi-dimensional thermal field data analysis and calculating the temperature gradient uniformity and heat diffusion offset value, the thermal distribution and heat diffusion dynamics inside the crimped terminal can be deeply evaluated. This enables the system to identify defects that are difficult to detect with traditional methods, such as crimping eccentricity, micro-voids, local oxidation, and virtual connections, thereby improving the sensitivity and accuracy of defect identification and the accuracy of monitoring the electromechanical installation status of industrial equipment.

[0056] Through the installation defect signal, the overall installation quality is macro-evaluated, and the air pressure warning signal and eccentricity warning signal are judged and generated to prompt installation defects in time, avoid equipment operation failure and avoid false alarms and missed alarms, providing a smarter and more reliable basis for maintenance decision-making. The system can bind the identification results with terminal number, installation time, operator and other information to form a digital quality file, providing a data basis for subsequent quality management, traceability and optimization. The entire monitoring process does not require direct contact with the cable crimping terminals, avoiding any form of damage to the equipment or connectors. It is suitable for online monitoring and large-scale surveys, especially for industrial equipment with high reliability requirements.

[0057] Example 3: As Example 3 of the present invention, when this application is specifically implemented, compared with Example 1 and Example 2, the technical solution of this example is to combine the solutions of the above-mentioned Example 1 and Example 2 for implementation.

[0058] The above formulas are all dimensionless and numerical calculations. The formulas are obtained by collecting a large amount of data and performing software simulation to obtain the most recent real situation. The preset parameters and thresholds in the formulas are set by technicians in this field according to actual conditions.

[0059] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An industrial equipment electromechanical installation status monitoring and early warning system, characterized in that: include: The temperature distribution sequence data acquisition module acquires the temperature distribution sequence data corresponding to each cable crimping terminal at multiple preset acquisition times t within a preset acquisition time, where t is a different preset acquisition time; The temperature gradient uniformity acquisition module generates a three-dimensional temperature point cloud dataset corresponding to each cable crimping terminal, analyzes the three-dimensional temperature point cloud dataset, obtains the temperature gradient uniformity corresponding to each cable crimping terminal, and generates an air pressure warning signal based on the temperature gradient uniformity. The temperature expansion path acquisition module analyzes the temperature measurement points of each cable crimping terminal at each preset collection time t hourly, obtains the thermal core corresponding to each cable crimping terminal at each preset collection time t, and obtains the temperature expansion path corresponding to each cable crimping terminal based on the thermal core; The thermal diffusion offset value acquisition module analyzes the temperature expansion path and geometric center coordinates corresponding to each cable crimping terminal to obtain the thermal diffusion offset value corresponding to each cable crimping terminal, and generates an eccentricity warning signal based on the thermal diffusion offset value; The installation defect signal generation module analyzes and determines the number of cable crimping terminals that have both air pressure warning signals and eccentricity warning signals to generate installation defect signals.

2. The industrial equipment electromechanical installation status monitoring and early warning system according to claim 1 is characterized in that: The specific method for obtaining the temperature gradient uniformity corresponding to each cable crimping terminal is as follows: First, a target terminal is randomly selected from each cable crimp terminal. The three-dimensional space occupied by the target terminal is divided into a series of regular cubic units, and these cubes are marked as voxels corresponding to the target terminal. For each voxel, the mean temperature corresponding to all temperature measurement points within it is calculated, thereby obtaining the temperature value corresponding to each voxel of the target terminal. The standard deviation of the temperature values ​​corresponding to each voxel of the target terminal is taken as the temperature gradient uniformity D1 corresponding to the target terminal; the temperature distribution sequence data of the remaining cable crimping terminals are analyzed in the same analysis method as that for obtaining the temperature gradient uniformity corresponding to the target terminal, and then the temperature gradient uniformity Dj corresponding to each cable crimping terminal is obtained, where j refers to different cable crimping terminals, j = 1, 2, ..., g, where g is the total number of cable crimping terminals, g is a positive integer, and g ≥ 2.

3. The industrial equipment electromechanical installation status monitoring and early warning system according to claim 2 is characterized in that: The specific method for determining the generation of air pressure warning signal is as follows: When the gradient uniformity is less than the preset value Y1, no processing is performed; when the gradient uniformity is greater than or equal to the preset value Y1, an air pressure warning signal is generated.

4. The industrial equipment electromechanical installation status monitoring and early warning system according to claim 3 is characterized in that: The specific method for obtaining the temperature expansion path corresponding to each cable crimping terminal is as follows: First, a terminal is randomly selected from each cable crimping terminal as the analysis terminal, and the three-dimensional space occupied by the analysis terminal is divided into a series of regular cubic units, and these cubes are marked as different voxels corresponding to the analysis terminal; Obtain the temperature measurement points corresponding to the analysis terminal at each preset acquisition time t, and use the center point of the voxel corresponding to the temperature measurement point at each preset acquisition time t as the heat kernel Ht corresponding to the analysis terminal at each preset acquisition time t, and then use the coordinates of the center point corresponding to the voxel as the heat kernel coordinate Ht (Xt, Yt, Zt), and connect the heat kernel Ht corresponding to the analysis terminal at each preset acquisition time t in sequence from front to back according to the preset acquisition time t, and then obtain the temperature extension path L1 corresponding to the analysis terminal. Use the same analysis method as that for obtaining the temperature extension path L1 corresponding to the analysis terminal to analyze the temperature measurement points corresponding to the remaining cable crimping terminals at each preset acquisition time t, and then obtain the temperature extension path Lj corresponding to each cable crimping terminal.

5. The industrial equipment electromechanical installation status monitoring and early warning system according to claim 4 is characterized in that: If the temperature measurement point is located on the same boundary line of two voxels, the midpoint of the line connecting the two voxel centers is used as the heat kernel of the corresponding temperature measurement point.

6. The industrial equipment electromechanical installation status monitoring and early warning system according to claim 5, characterized in that: The specific method for obtaining the thermal diffusion offset value corresponding to each cable crimping terminal is as follows: During the electromechanical installation or design stage, the geometric center coordinates Cj (xj, yj, zj) corresponding to each cable crimping terminal are obtained through the CAD model, and the thermal core coordinates Ht (Xt, Yt, Zt) corresponding to each preset acquisition time t in the temperature expansion path L1 corresponding to the analysis terminal are obtained from the temperature expansion path acquisition module. The average value of the thermal core coordinates Ht (Xt, Yt, Zt) corresponding to each preset acquisition time t is obtained and used as the path position coordinates W (Xp, Yp, Zp) of the temperature expansion path of the analysis terminal; at the same time, the geometric center coordinates E (Ex, Ey, Ez) corresponding to the analysis terminal are obtained; the vector modulus |V| between the geometric center E of the analysis terminal and the path position W is calculated and used as the thermal diffusion offset value F1 corresponding to the analysis terminal, and the temperature expansion paths and geometric center coordinates corresponding to each of the remaining cable crimping terminals at each preset acquisition time t are analyzed in the same analysis method as that for obtaining the thermal diffusion offset value corresponding to the analysis terminal, thereby obtaining the thermal diffusion offset value Fj corresponding to each cable crimping terminal.

7. The industrial equipment electromechanical installation status monitoring and early warning system according to claim 6, characterized in that: The specific method of generating an eccentricity warning signal based on the thermal diffusion offset value is as follows: When the thermal diffusion offset value at the cable crimping terminal is less than 2mm, no processing is performed; if the thermal diffusion offset value is greater than or equal to 2mm, an eccentricity warning signal is generated.

8. The industrial equipment electromechanical installation status monitoring and early warning system according to claim 6, characterized in that: The specific method for obtaining the vector modulus length |V| between the geometric center E of the analysis terminal and the path position W is: By formula: The vector modulus length |V| between the geometric center E of the analysis terminal and the path position W is calculated and obtained.

9. The industrial equipment electromechanical installation status monitoring and early warning system according to claim 7, characterized in that: The specific method for determining the generation of an installation defect signal is as follows: The number h of cable crimping terminals with both air pressure warning signals and eccentricity warning signals is obtained, and the ratio between it and the total number g of cable crimping terminals is calculated. When the ratio is greater than the preset value 3 / 5, an installation defect signal is generated, otherwise no processing is performed.

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