A low temperature detection method and device based on cable processing

Abstract

The present invention discloses a low temperature detection method and device based on cable processing, and relates to the field of low temperature detection technology. The low temperature detection method and device based on cable processing, based on the low temperature detection equipment performance index information analysis obtained by monitoring simulated cable low temperature detection, performs reliability evaluation on the low temperature detection equipment, and determines whether the low temperature detection equipment is suitable for actual cable low temperature detection; monitors the low temperature detection process of the target processed cable, obtains the low temperature detection environment temperature and cable performance change data during the monitoring process; analyzes the cable performance change data, evaluates the low temperature adaptability and reliability of the target processed cable; generates a low temperature detection report for the target processed cable according to the low temperature adaptability and reliability evaluation results of the target processed cable. The method adopts data processing means for the low temperature detection of the cable, and uses data for evaluation, so that the detection is more accurate and reliable.

Description

Technical Field

[0001] The present invention relates to the field of low temperature detection technology, and in particular to a low temperature detection method and device based on cable processing. Background Art

[0002] In many industrial fields, such as chemical, refrigeration, and liquefied natural gas industries, it is necessary to monitor and test the performance of cables in low-temperature environments. These industries have extremely high requirements for the reliability and safety of cables, so it is necessary to develop effective detection methods suitable for low-temperature environments.

[0003] For cable detection in low-temperature environments, traditional methods have problems of energy waste or low efficiency. Therefore, researchers urgently need to develop a detection method that can maximize the avoidance of low-temperature air leakage, energy saving and high efficiency to meet the needs of industrial applications. Cable detection in low-temperature environments faces many technical challenges, including the impact of temperature changes on detection accuracy, the performance stability of equipment in low-temperature environments, and after cable detection in low-temperature environments, it is necessary to easily remove the cable for repair, replacement or other operations. Therefore, setting temperature neutralization to facilitate cable removal is also an important requirement for cable low-temperature detection, which is expected to improve the convenience and efficiency of operation.

[0004] Existing detection methods usually combine equipment with data analysis to achieve more comprehensive and accurate detection. For example, the Chinese invention patent with announcement number CN105865936B discloses a low-temperature bending detection method for metal materials. This method is to make a bending specimen of the metal material, install a low-temperature environment box on a universal testing machine, install a bending detection device in the box, and then perform a low-temperature bending test on the specimen, record the bending failure angle, calculate the total bending section rate, the width shrinkage rate and thickness shrinkage rate of the rectangular specimen, and the diameter shrinkage rate of the circular specimen. This method expands the previous limitation of only being able to perform room temperature bending detection on the performance of metal materials, and can simulate the actual bending of metal materials in a low-temperature environment, thereby making the performance of metal steel that can be tested and reflected by the bending test more comprehensive.

[0005] Referring to the above-mentioned low-temperature bending detection method for metal materials, the combination of detection equipment and data analysis means can achieve comprehensive and accurate detection of objects. Therefore, combined with data analysis means, it is expected to solve the energy waste and inefficiency problems existing in traditional methods, and cope with technical challenges in low-temperature environments to improve the accuracy and reliability of detection.

[0006] Therefore, in view of the above problems, there is an urgent need for a low-temperature detection method and device based on cable processing. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a low-temperature detection method and device based on cable processing, which solves the problems of low efficiency in traditional cable low-temperature detection and lack of objective numerical evaluation of cable low-temperature detection.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a low-temperature detection method based on cable processing, comprising the following steps: based on the analysis of the low-temperature detection equipment performance index information obtained by monitoring the simulated cable low-temperature detection, the low-temperature detection equipment is evaluated for reliability, and it is determined whether the low-temperature detection equipment is suitable for actual cable low-temperature detection; based on the low-temperature detection equipment, a benchmark for judging the suitability for actual cable low-temperature detection is used, the low-temperature detection process of the target processed cable is monitored, and the low-temperature detection environment temperature and cable performance change data during the monitoring process are obtained; the cable performance change data is analyzed to evaluate the low-temperature adaptability and reliability of the target processed cable; and a low-temperature detection report for the target processed cable is generated according to the low-temperature adaptability and reliability evaluation results of the target processed cable.

[0009] Furthermore, the specific judgment method for judging whether the low-temperature detection equipment is suitable for actual cable low-temperature detection is: analyzing the performance index information of the low-temperature detection equipment to obtain the applicability compliance index of the low-temperature detection equipment; analyzing the low-temperature detection requirements of cable processing to obtain the practicality requirement threshold of the low-temperature detection equipment; comparing and analyzing the applicability compliance index of the low-temperature detection equipment with the practicality requirement threshold of the low-temperature detection equipment, when the applicability compliance index of the low-temperature detection equipment is greater than or equal to the practicality requirement threshold of the low-temperature detection equipment, it is judged that the low-temperature detection equipment is suitable for actual cable low-temperature detection; when the applicability compliance index of the low-temperature detection equipment is less than the practicality requirement threshold of the low-temperature detection equipment, it is judged that the low-temperature detection equipment has unqualified performance indicators, and an alarm mechanism is used to send a prompt text message to prompt the equipment maintenance personnel to optimize the performance of the low-temperature detection equipment.

[0010] Furthermore, the specific analysis process for obtaining the applicability compliance index of the low-temperature detection equipment is as follows: obtaining various performance indicator requirements of the low-temperature detection equipment, wherein the various performance indicator requirements specifically include airtightness requirements, temperature debugging requirements, and operation stability requirements; performing cable simulated low-temperature detection on the low-temperature detection equipment, based on the performance indicator information of the low-temperature detection equipment obtained during the cable simulated low-temperature detection process, wherein the performance indicator information of the low-temperature detection equipment specifically includes airtightness indicator information, temperature debugging indicator information, and operation stability indicator information; performing corresponding analysis in combination with the airtightness requirements, temperature debugging requirements, and operation stability requirements and the airtightness indicator information, temperature debugging indicator information, and operation stability indicator information, to obtain various indicator compliance indexes of the low-temperature detection equipment, wherein the various indicator compliance indexes of the low-temperature detection equipment specifically include airtightness indicator compliance index, temperature debugging indicator compliance index, and operation stability indicator compliance index; assigning weights to the airtightness indicator compliance index, the temperature debugging indicator compliance index, and the operation stability indicator compliance index, respectively, and performing a comprehensive analysis to obtain the applicability compliance index of the low-temperature detection equipment, wherein the applicability compliance index of the low-temperature detection equipment is used to quantify the degree of adaptability of the low-temperature detection equipment to low-temperature detection of cables.

[0011] Furthermore, the specific analysis process of performing simulated low-temperature detection of cables on the low-temperature detection equipment is: obtaining the initial state of the simulated cable and the low-temperature detection equipment, the initial state including the initial temperature of the simulated cable, the initial length of the simulated cable, the initial surface condition of the simulated cable, and the initial temperature of the low-temperature chamber of the low-temperature detection equipment; monitoring the temperature changes of the simulated cable in the low-temperature detection equipment and the changes in the performance index information of the low-temperature detection equipment, and collecting the temperature data of the surface of the simulated cable and the performance index information of the low-temperature detection equipment in real time; analyzing the real-time collected temperature data of the surface of the simulated cable, identifying abnormal temperature conditions of the simulated cable, and then generating a simulation detection report based on the identification results.

[0012] Furthermore, the airtightness index information specifically includes: temperature leakage rate, water seepage rate; the temperature debugging index information specifically includes: temperature debugging accuracy, temperature adjustment speed, temperature adjustment uniformity; the operation stability index information specifically includes: continuous operation time, failure rate.

[0013] Furthermore, the specific analysis process for evaluating the low-temperature adaptability and reliability of the target processing cable is as follows: obtaining the initial information of the target processing cable; monitoring the low-temperature detection process of the target processing cable in real time, and obtaining the cable low-temperature detection performance parameters; comparing the initial information of the target processing cable with the cable low-temperature detection performance parameters to obtain the cable performance change data; obtaining the low-temperature performance change evaluation value of the target processing cable based on the cable performance change data analysis; obtaining the cable low-temperature detection performance change threshold based on the cable low-temperature detection reliability requirements; comparing and analyzing the low-temperature performance change evaluation value of the target processing cable with the cable low-temperature detection performance change threshold; when the low-temperature performance change evaluation value of the target processing cable is less than or equal to the cable low-temperature detection performance change threshold, the low-temperature adaptability and reliability of the target processing cable are marked as qualified; when the low-temperature performance change evaluation value of the target processing cable is greater than the cable low-temperature detection performance change threshold, the low-temperature adaptability and reliability of the target processing cable are marked as unqualified.

[0014] Furthermore, the cable performance change data specifically include: tensile variables of the target processed cable, instantaneous tensile force of the target processed cable at break, and an increase in surface cracks of the target processed cable after low temperature testing.

[0015] Furthermore, the specific calculation formula for the low temperature performance change evaluation value of the target processed cable is:

[0016] ; In the formula Indicates the low temperature performance change evaluation value of the target processed cable, A tensile variable representing the target processed cable, Indicates the instantaneous tensile force of the target processing cable at break, Indicates the increase in surface cracks of the target processed cable after low temperature testing, represents the reference value of the stretched variable, Indicates the reference value of the instantaneous tensile force at break. Indicates the reference value of the increase in surface cracks, represents the weight factor of the stretched variable, represents the weight factor of the instantaneous tensile force at fracture, A weighting factor representing the amount of surface crack increase.

[0017] Furthermore, the low-temperature detection report of the target processing cable specifically includes: the temperature set in the low-temperature chamber of the low-temperature detection equipment, the initial information of the target processing cable, the cable low-temperature detection performance parameters of the target processing cable, the cable performance change data of the target processing cable, and the evaluation marking results of the low-temperature adaptability and reliability of the target processing cable.

[0018] A low temperature detection device based on cable processing, using the above-mentioned low temperature detection method based on cable processing, comprising: a processor, used to process computer program instructions stored in a memory during execution; a low temperature detection feasibility assessment module, used to analyze the low temperature detection equipment performance index information obtained by monitoring simulated cable low temperature detection, conduct reliability assessment on the low temperature detection equipment, and judge whether the low temperature detection equipment is suitable for actual cable low temperature detection; a data acquisition module, used to judge the benchmark suitable for actual cable low temperature detection based on the low temperature detection equipment, monitor the low temperature detection process of the target processed cable, and obtain the low temperature detection environment temperature and cable performance change data during the monitoring process; a data analysis module, used to analyze the cable performance change data, and evaluate the low temperature adaptability and reliability of the target processed cable; a report generation module, used to generate a low temperature detection report of the target processed cable according to the low temperature adaptability and reliability assessment results of the target processed cable.

[0019] The present invention has the following beneficial effects:

[0020] (1) This low-temperature detection method and device based on cable processing, by evaluating the performance of the low-temperature detection equipment and determining the benchmark, ensures that the selected equipment can accurately and reliably monitor the performance changes of the cable in a low-temperature environment, thereby improving the accuracy and reliability of the detection; by analyzing and evaluating the cable performance change data, it can timely discover possible problems or potential risks of the cable in a low-temperature environment, thereby avoiding failures or accidents caused by the degradation of cable performance, saving maintenance and replacement costs, and reducing downtime; by generating a low-temperature detection report, it can provide users with the performance and safety evaluation of the cable in a low-temperature environment, help users better understand the limitations and precautions of cable use, and improve the safety of cable use.

[0021] (2) The low-temperature detection method and device based on cable processing adopts data processing technology. For the low-temperature detection of the target processed cable, the reliability of the low-temperature detection equipment is first considered. The sealing requirements, temperature debugging requirements, and operation stability requirements are comprehensively combined with the sealing index information, temperature debugging index information, and operation stability index information for corresponding analysis to obtain the various index compliance indexes of the low-temperature detection equipment. The various index compliance indexes of the low-temperature detection equipment include the sealing index compliance index, the temperature debugging index compliance index, and the operation stability index compliance index. Then, through the sealing index compliance index, the temperature debugging index compliance index, and the operation stability index compliance index, a comprehensive analysis is performed to obtain the applicability compliance index of the low-temperature detection equipment, which is helpful to quantify the adaptability of the low-temperature detection equipment to the low-temperature detection of the cable, and further ensure the accuracy of the low-temperature detection; by using the low-temperature performance change evaluation value of the target processed cable obtained by analyzing the cable performance change data during the low-temperature detection process, the low-temperature adaptability and reliability of the target processed cable are evaluated, which can provide reference opinions for the design and production process of the cable, optimize the performance and durability of the cable, and improve its adaptability in a low-temperature environment.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a flow chart of a low temperature detection method based on cable processing.

[0024] Figure 2 This is a structural diagram of a low-temperature detection device based on cable processing according to the present invention.

[0025] Figure 3 It is the effect diagram of each parameter of the applicability compliance index calculation formula of the low-temperature detection equipment of the present invention. DETAILED DESCRIPTION

[0026] The embodiment of the present application solves the problems of low efficiency and lack of objective numerical evaluation of traditional cable low temperature detection through a low temperature detection method and device based on cable processing.

[0027] The overall idea of ​​the problem in the embodiment of this application is as follows:

[0028] By monitoring the simulated cable low-temperature detection, the performance index information of the low-temperature detection equipment is obtained. Through the analysis of this information, the reliability of the low-temperature detection equipment is evaluated to determine whether it is suitable for actual cable low-temperature detection. Based on the judgment of the low-temperature detection equipment, the benchmark suitable for actual cable low-temperature detection is determined. Then, during the actual cable low-temperature detection process, the ambient temperature and cable performance change data are monitored; the monitored data is analyzed to evaluate the adaptability and reliability of the target processed cable in a low-temperature environment; finally, based on the low-temperature adaptability and reliability evaluation results of the target processed cable, a low-temperature detection report is generated.

[0029] See also Figure 1 The embodiment of the present invention provides a technical solution: a low-temperature detection method based on cable processing, comprising the following steps: analyzing the performance indicator information of the low-temperature detection equipment obtained by monitoring the low-temperature detection of the simulated cable, evaluating the reliability of the low-temperature detection equipment, judging whether the low-temperature detection equipment is suitable for the actual low-temperature detection of the cable, judging the benchmark suitable for the actual low-temperature detection of the cable based on the low-temperature detection equipment, monitoring the low-temperature detection process of the target processed cable, obtaining the low-temperature detection environment temperature and cable performance change data during the monitoring process, analyzing the cable performance change data, evaluating the low-temperature adaptability and reliability of the target processed cable, and then generating a low-temperature detection report for the target processed cable according to the low-temperature adaptability and reliability evaluation results of the target processed cable.

[0030] Specifically, the specific judgment method for determining whether the low-temperature detection equipment is suitable for actual cable low-temperature detection is: analyzing the performance indicator information of the low-temperature detection equipment to obtain the applicability compliance index of the low-temperature detection equipment; based on the low-temperature detection demand analysis of cable processing, obtaining the practicality demand threshold of the low-temperature detection equipment; comparing and analyzing the applicability compliance index of the low-temperature detection equipment with the practicality demand threshold of the low-temperature detection equipment. When the applicability compliance index of the low-temperature detection equipment is greater than or equal to the practicality demand threshold of the low-temperature detection equipment, the low-temperature detection equipment is suitable for actual cable low-temperature detection. When the applicability compliance index of the low-temperature detection equipment is less than the practicality demand threshold of the low-temperature detection equipment, it is determined that the performance indicators of the low-temperature detection equipment are unqualified, and an alarm mechanism is used to send a prompt text message to prompt the equipment maintenance personnel to optimize the performance of the low-temperature detection equipment.

[0031] In this implementation plan, performance indicator information of low-temperature detection equipment is collected and organized, including detection accuracy, response speed, and stability. The applicability of the low-temperature detection equipment is evaluated based on existing data to obtain a applicability compliance index. The actual needs of cable low-temperature detection are analyzed, including temperature range, detection accuracy, and environmental adaptability requirements. The practical demand threshold of the low-temperature detection equipment is obtained based on the demand analysis. The practical demand threshold of the low-temperature detection equipment is obtained in the following way: the actual needs of cable low-temperature detection are collected, including determining the temperature range required to be covered by cable low-temperature detection, determining the required temperature accuracy of cable low-temperature detection, and considering the environmental conditions that cable low-temperature detection may face. Various requirements are integrated into specific performance indicators. According to actual needs and application scenarios, combined with technical standards, industry specifications, and relevant experience, the practical demand thresholds of various performance indicators of low-temperature detection equipment are determined. Then, the applicability demand thresholds of various performance indicators are comprehensively analyzed to obtain the practical demand thresholds of low-temperature detection equipment.

[0032] Through quantitative indicators and thresholds, the applicability of low-temperature detection equipment can be objectively evaluated, avoiding errors that may be caused by subjective judgment. By comparing and analyzing the performance indicators of low-temperature detection equipment and the actual demand thresholds, it is possible to clearly understand whether the equipment meets actual needs and intuitively compare the advantages and disadvantages of different equipment. The alarm mechanism can promptly discover performance problems of low-temperature detection equipment, and perform maintenance and optimization in a timely manner to ensure the normal operation of the equipment. It avoids the waste of resources due to equipment performance not meeting actual needs, and can make more effective use of equipment and improve work efficiency.

[0033] Specifically, the specific analysis process for obtaining the suitability compliance index of the low-temperature detection equipment is as follows: obtaining various performance indicator requirements of the low-temperature detection equipment, including airtightness requirements, temperature debugging requirements, and operation stability requirements; performing cable simulation low-temperature detection on the low-temperature detection equipment, based on the low-temperature detection equipment performance indicator information obtained during the cable simulation low-temperature detection process, the low-temperature detection equipment performance indicator information includes: airtightness indicator information, temperature debugging indicator information, and operation stability indicator information. The airtightness indicator information includes: temperature leakage rate and water seepage rate. The temperature debugging indicator information includes: temperature debugging accuracy, temperature adjustment speed, and temperature adjustment uniformity. The operation stability indicator information includes: continuous operation time and failure rate; combined with the airtightness The sealing requirements, temperature debugging requirements, and operation stability requirements are analyzed in correspondence with the sealing index information, temperature debugging index information, and operation stability index information to obtain the compliance index of various indicators of the low-temperature detection equipment. The compliance index of various indicators of the low-temperature detection equipment includes the sealing index compliance index, the temperature debugging index compliance index, and the operation stability index compliance index; weights are assigned to the sealing index compliance index, the temperature debugging index compliance index, and the operation stability index compliance index, respectively, and a comprehensive analysis is performed to obtain the applicability compliance index of the low-temperature detection equipment. The applicability compliance index of the low-temperature detection equipment is used to quantify the adaptability of the low-temperature detection equipment to the low-temperature detection of cables. The specific calculation formula of the applicability compliance index of the low-temperature detection equipment is: ; In the formula Indicates the suitability of low temperature detection equipment. Indicates that the airtightness index meets the index. It means that the temperature debugging index meets the index. It means that the operation stability index meets the index. Indicates the weight factor of the airtightness index. Indicates the weight factor of the temperature debugging index compliance index, Indicates the weight factor of the running stability index, see Figure 3 , the x-axis represents the values ​​of the airtightness index compliance index, the temperature debugging index compliance index and the operation stability index compliance index, the y-axis represents the TSB value, and the three broken lines represent the influence of the airtightness index compliance index, the temperature debugging index compliance index and the operation stability index compliance index on TSB. The larger the airtightness index compliance index, the temperature debugging index compliance index and the operation stability index compliance index, the larger the applicability compliance index of the low-temperature detection equipment. The example values ​​of each parameter are as follows:

[0034]

[0035] In this implementation plan, various performance indicator requirements of low-temperature detection equipment are collected and organized, experimental conditions simulating the low-temperature environment of the cable are set, the low-temperature detection equipment is operated, and its performance in the simulated low-temperature environment is recorded. Based on the data obtained during the cable simulated low-temperature detection process, the performance indicator information of the low-temperature detection equipment is obtained, including data on airtightness, temperature debugging, and operational stability. The actual performance indicator information obtained is analyzed in correspondence with the various performance indicator requirements to obtain the compliance index of each performance indicator. According to the importance of each performance indicator, the compliance index of each performance indicator is weighted, and the compliance index of each performance indicator is multiplied by the corresponding weight. A comprehensive analysis is performed to obtain the applicability compliance index of the low-temperature detection equipment.

[0036] The specific method for obtaining the compliance index of each indicator of low-temperature detection equipment is as follows: quantify the corresponding parameters of each indicator, determine the specific measurement method and standard, determine the weight of the corresponding parameters of each indicator according to actual needs and importance, measure and evaluate the corresponding parameters of each indicator of low-temperature detection equipment according to the set test methods and standards, and weight according to the test results of the corresponding parameters of each indicator to obtain the compliance index of each indicator, among which: the temperature leakage rate refers to the temperature difference between the internal temperature of the low-temperature detection equipment and the external ambient temperature under the set temperature conditions, which characterizes the ability of the equipment to maintain the internal temperature. The lower the temperature leakage rate, the more stable the internal temperature of the equipment. It is calculated by setting a temperature sensor inside the equipment and monitoring the temperature difference between the inside and outside of the equipment; the water seepage rate refers to the amount of water seepage when the low-temperature detection equipment is in working condition, which reflects the sealing performance of the equipment. It is tested and obtained by setting a humidity sensor inside the equipment and monitoring the changes in the humidity sensor; the temperature debugging accuracy indicates the accuracy of the low-temperature detection equipment at the set temperature. Accuracy refers to the deviation between the set temperature and the actual temperature. The temperature debugging accuracy of the equipment is evaluated by setting the equipment at different temperatures and using precise temperature sensors to measure the actual temperature. The temperature adjustment speed refers to the time required for the equipment to adjust from one temperature to another, which reflects how fast the equipment adjusts the temperature. It is measured by recording the time required for the equipment to change from one temperature state to another. The temperature adjustment uniformity indicates whether the temperature adjustment at different locations inside the equipment is uniform, that is, the size of the temperature difference at various locations in the equipment. The temperature adjustment uniformity is obtained by setting multiple temperature sensors inside the equipment and recording the temperatures at different locations. The continuous operation time refers to the time that the low-temperature detection equipment can continue to operate under continuous working conditions. It is obtained by monitoring the operation of the equipment for a long time and recording the continuous working time of the equipment. The failure rate indicates the probability of failure of the low-temperature detection equipment within a certain period of time. The failure rate is calculated by counting the number of failures of the equipment within a certain period of time and comparing it with the total operating time of the equipment.

[0037] To set the corresponding weight factors for the airtightness index, temperature debugging index and operation stability index, it is first necessary to determine the importance of each indicator for the applicability of low-temperature detection equipment. By designing a questionnaire survey, invite cable industry practitioners, users or other relevant personnel to participate, and determine the weight of each indicator based on their opinions and feedback, or by constructing a judgment matrix, compare each indicator pairwise, and then calculate the weight based on the comparison results. The weight of each indicator can also be determined through historical data or experimental results and data analysis methods.

[0038] Specifically, the specific analysis process of conducting simulated low-temperature detection of cables with low-temperature detection equipment is as follows: obtaining the initial state of the simulated cable and the low-temperature detection equipment, the initial state including the initial temperature of the simulated cable, the initial length of the simulated cable, the initial surface condition of the simulated cable, and the initial temperature of the low-temperature chamber of the low-temperature detection equipment; monitoring the temperature changes of the simulated cable in the low-temperature detection equipment and the changes in the performance index information of the low-temperature detection equipment, and collecting the temperature data of the surface of the simulated cable and the performance index information of the low-temperature detection equipment in real time; analyzing the real-time collected temperature data of the surface of the simulated cable, identifying abnormal temperature conditions of the simulated cable, and then generating a simulation detection report based on the identification results.

[0039] In this implementation scheme, the initial temperature, initial length and initial surface condition of the simulated cable and the initial temperature of the low-temperature chamber of the low-temperature detection equipment are recorded, the simulated cable is placed in the low-temperature detection equipment, and the temperature change of the simulated cable is monitored. At the same time, the performance index information of the low-temperature detection equipment is monitored, including airtightness, temperature adjustment accuracy, and operation stability; the temperature data of the surface of the simulated cable and the performance index information of the low-temperature detection equipment are collected in real time; the surface temperature data of the simulated cable collected in real time are analyzed to identify abnormal temperature conditions, such as too high or too low temperature. At the same time, the performance index information of the low-temperature detection equipment is analyzed to check whether there is performance abnormality. According to the identification results, a simulation test report is generated. The simulation test report includes the temperature abnormality of the simulated cable, the performance evaluation of the low-temperature detection equipment, and possible improvement suggestions. By real-time monitoring of the temperature change of the simulated cable, abnormal temperature conditions can be discovered in time, possible faults can be warned in advance, and the performance index information of the low-temperature detection equipment can be monitored to evaluate the performance of the equipment and timely discover and solve potential problems.

[0040] Specifically, the specific analysis process for evaluating the low-temperature adaptability and reliability of the target processing cable is as follows: obtaining the initial information of the target processing cable; monitoring the low-temperature detection process of the target processing cable in real time, and obtaining the cable low-temperature detection performance parameters; comparing the initial information of the target processing cable with the cable low-temperature detection performance parameters to obtain the cable performance change data, which specifically includes: the tensile variable of the target processing cable, the instantaneous tensile force of the target processing cable at break, and the increase in surface cracks of the target processing cable after low-temperature detection; according to the cable performance change data analysis, the low-temperature performance change evaluation value of the target processing cable is obtained, and the specific calculation formula for the low-temperature performance change evaluation value of the target processing cable is: ; In the formula Indicates the low temperature performance change evaluation value of the target processed cable, A tensile variable representing the target processed cable, Indicates the instantaneous tensile force of the target processing cable at break, Indicates the increase in surface cracks of the target processed cable after low temperature testing, represents the reference value of the stretched variable, Indicates the reference value of the instantaneous tensile force at break. Indicates the reference value of the increase in surface cracks, represents the weight factor of the stretched variable, represents the weight factor of the instantaneous tensile force at fracture, A weight factor representing the amount of surface crack increase; based on the low-temperature detection reliability requirements of the cable, a threshold value for the change in the low-temperature detection performance of the cable is obtained; a comparative analysis is performed on the low-temperature performance change evaluation value of the target processed cable and the low-temperature detection performance change threshold of the cable; when the low-temperature performance change evaluation value of the target processed cable is less than or equal to the low-temperature detection performance change threshold of the cable, the low-temperature adaptability and reliability of the target processed cable are marked as qualified; when the low-temperature performance change evaluation value of the target processed cable is greater than the low-temperature detection performance change threshold of the cable, the low-temperature adaptability and reliability of the target processed cable are marked as unqualified.

[0041] In this implementation plan, the initial information of the target processed cable includes the cable model, material, production date, manufacturer, initial length, and initial number of surface cracks. The cable is monitored in real time using low-temperature detection equipment to record the temperature and tension parameters of the cable in a low-temperature environment. The cable low-temperature detection performance parameters include the cable length after low-temperature detection, the tension applied in the tensile test after low-temperature detection, and the number of surface cracks after low-temperature detection; the tensile variable refers to the elongation of the cable under tension; the instantaneous tension at break refers to the tension exerted on the cable when it suddenly breaks in a low-temperature environment; the increase in surface cracks refers to the increase in cracks on the cable surface after low-temperature detection, reflecting the cold resistance of the cable; the tensile variable is obtained by performing a tensile test on the target processed cable in a low-temperature environment, and calculating tensile variables such as elastic modulus from the test data. The reference value is the same type of cable under standard conditions. The elastic modulus value, or the ideal value provided by the manufacturer; the instantaneous tensile force at break is measured by conducting a tensile test on the target processed cable in a low temperature environment, and recording the value of the instantaneous tensile force at break. The reference value is the instantaneous tensile force at break of the same type of cable under standard conditions, or the minimum tensile requirement specified in the product design specifications; the increase in surface cracks is measured by inspecting the target processed cable in a low temperature environment, recording the number and length of surface cracks, and then comparing them with the data before low temperature testing to calculate the increase in cracks. The reference value is the maximum increase in cracks specified in the product design specifications, or the increase in surface cracks of the same type of cable under standard conditions; the weight factor is determined by professionals or relevant standard-setting organizations based on actual conditions and needs, taking into account the degree of influence of various performances of the cable in a low temperature environment on the overall performance, as well as the degree of attention of the user.

[0042] Specifically, the low-temperature detection report of the target processed cable includes: the temperature set in the low-temperature chamber of the low-temperature detection equipment, the initial information of the target processed cable, the cable low-temperature detection performance parameters of the target processed cable, the cable performance change data of the target processed cable, and the evaluation marking results of the low-temperature adaptability and reliability of the target processed cable.

[0043] In this implementation plan, by recording equipment parameters, initial information, performance parameters and performance change data information, the performance of the target processed cable in a low-temperature environment can be comprehensively evaluated, and all information can be integrated into a report to facilitate subsequent comparison and analysis, providing a reference for the improvement and optimization of cable performance. A comprehensive evaluation of the low-temperature performance of the cable can promptly identify problems with the cable, and then take corresponding measures to improve product quality and reliability.

[0044] See also Figure 2A low-temperature detection device based on cable processing, using the above-mentioned low-temperature detection method based on cable processing, includes: a processor, used to process computer program instructions stored in a memory during execution; a low-temperature detection feasibility evaluation module, used to analyze the performance index information of the low-temperature detection equipment obtained by monitoring the low-temperature detection of simulated cables, evaluate the reliability of the low-temperature detection equipment, and judge whether the low-temperature detection equipment is suitable for actual cable low-temperature detection; a data acquisition module, used to judge the benchmark suitable for actual cable low-temperature detection based on the low-temperature detection equipment, monitor the low-temperature detection process of the target processed cable, and obtain the low-temperature detection environment temperature and cable performance change data during the monitoring process; a data analysis module, used to analyze the cable performance change data, and evaluate the low-temperature adaptability and reliability of the target processed cable; a report generation module, used to generate a low-temperature detection report of the target processed cable according to the low-temperature adaptability and reliability evaluation results of the target processed cable.

[0045] In summary, this application has at least the following effects:

[0046] By evaluating the performance of low-temperature detection equipment and determining the benchmark, we ensure that the selected equipment can accurately and reliably monitor the performance changes of cables in low-temperature environments, thereby improving the accuracy and reliability of detection; the analysis and evaluation of cable performance change data can timely discover possible problems or potential risks of cables in low-temperature environments, thereby avoiding failures or accidents caused by reduced cable performance, saving maintenance and replacement costs, and reducing downtime; evaluating the low-temperature adaptability and reliability of the target processed cable can provide reference opinions for the design and production process of the cable, optimize the performance and durability of the cable, and improve its adaptability in low-temperature environments; by generating a low-temperature detection report, it can provide users with the performance and safety evaluation of the cable in a low-temperature environment, help users better understand the restrictions and precautions on the use of cables, and improve the safety of cable use.

[0047] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods and apparatuses. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0048] The present invention is described with reference to the structure diagram and flow chart of the apparatus and method according to the embodiment of the present invention. It should be understood that the combination of each module and process in the structure diagram and flow chart can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the flow chart. Figure 1 process or processes and structures Figure 1 A device that specifies functionality in a module or modules.

[0049] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 process or processes and structures Figure 1 A function specified in a module or multiple modules.

[0050] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 process or processes and structures Figure 1 Steps to specify functionality in a module or multiple modules.

[0051] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0052] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A low temperature detection method based on cable processing, characterized in that: The following steps are involved: Based on the analysis of the performance index information of the low-temperature detection equipment obtained by monitoring the simulated cable low-temperature detection, the reliability of the low-temperature detection equipment is evaluated to determine whether the low-temperature detection equipment is suitable for actual cable low-temperature detection; Based on the low-temperature detection equipment, determine the benchmark applicable to the actual low-temperature detection of cables, monitor the low-temperature detection process of the target processed cables, and obtain the low-temperature detection environment temperature and cable performance change data during the monitoring process; Analyze the cable performance change data to evaluate the low temperature adaptability and reliability of the target processed cable; Generate a low-temperature detection report of the target processing cable according to the low-temperature adaptability and reliability evaluation results of the target processing cable; The specific method for judging whether the low temperature detection equipment is suitable for actual cable low temperature detection is: Analyze the performance index information of low-temperature detection equipment to obtain the applicability compliance index of low-temperature detection equipment; Based on the analysis of low-temperature detection requirements for cable processing, the practical demand threshold of low-temperature detection equipment is obtained; By comparing and analyzing the applicability compliance index of the low-temperature detection equipment with the practical demand threshold of the low-temperature detection equipment, when the applicability compliance index of the low-temperature detection equipment is greater than or equal to the practical demand threshold of the low-temperature detection equipment, it is judged that the low-temperature detection equipment is suitable for actual cable low-temperature detection; when the applicability compliance index of the low-temperature detection equipment is less than the practical demand threshold of the low-temperature detection equipment, it is judged that the low-temperature detection equipment has unqualified performance indicators, and an alarm mechanism is used to send a prompt SMS to prompt the equipment maintenance personnel to optimize the performance of the low-temperature detection equipment; The specific analysis process for obtaining the suitability compliance index of the low-temperature detection equipment is as follows: Obtain various performance indicator requirements of low-temperature detection equipment, including airtightness requirements, temperature debugging requirements, and operation stability requirements; Conduct cable simulated low-temperature testing on the low-temperature testing equipment, based on the performance index information of the low-temperature testing equipment obtained during the cable simulated low-temperature testing process, wherein the performance index information of the low-temperature testing equipment specifically includes: airtightness index information, temperature debugging index information, and operation stability index information; Combine the airtightness requirements, temperature debugging requirements, and operation stability requirements with the airtightness index information, temperature debugging index information, and operation stability index information to perform corresponding analysis to obtain the various index compliance indexes of the low-temperature detection equipment, wherein the various index compliance indexes of the low-temperature detection equipment specifically include the airtightness index compliance index, the temperature debugging index compliance index, and the operation stability index compliance index; Weights are assigned to the compliance index of the airtightness index, the compliance index of the temperature debugging index, and the compliance index of the operation stability index, respectively, and a comprehensive analysis is performed to obtain the applicability compliance index of the low-temperature detection equipment. The applicability compliance index of the low-temperature detection equipment is used to quantify the adaptability of the low-temperature detection equipment to the low-temperature detection of cables; The specific analysis process of the low temperature detection equipment for cable simulation low temperature detection is as follows: Acquire the initial state of the simulated cable and the low-temperature detection equipment, wherein the initial state includes the initial temperature of the simulated cable, the initial length of the simulated cable, the initial surface condition of the simulated cable, and the initial temperature of the low-temperature chamber of the low-temperature detection equipment; Monitor the temperature changes of the simulated cable in the low-temperature detection equipment and the performance index information changes of the low-temperature detection equipment, and collect the temperature data of the simulated cable surface and the performance index information of the low-temperature detection equipment in real time; Analyze the real-time collected temperature data on the surface of the simulated cable, identify abnormal temperature conditions of the simulated cable, and then generate a simulated test report based on the identification results; The airtightness index information specifically includes: temperature leakage rate, water seepage rate; The temperature adjustment index information specifically includes: temperature adjustment accuracy, temperature adjustment speed, and temperature adjustment uniformity; The operation stability index information specifically includes: continuous operation time and failure rate; The specific analysis process for evaluating the low temperature adaptability and reliability of the target processed cable is as follows: Obtaining initial information of the target processing cable; Monitor the low-temperature detection process of the target processed cable in real time and obtain the cable low-temperature detection performance parameters; Compare the initial information of the target processed cable with the cable low temperature detection performance parameters to obtain the cable performance change data; According to the cable performance change data analysis, the low-temperature performance change evaluation value of the target processed cable is obtained; Based on the reliability requirements of low-temperature detection of cables, the threshold of cable low-temperature detection performance change is obtained; Compare and analyze the low-temperature performance change evaluation value of the target processed cable with the cable low-temperature detection performance change threshold. When the low-temperature performance change evaluation value of the target processed cable is less than or equal to the cable low-temperature detection performance change threshold, the low-temperature adaptability and reliability of the target processed cable are marked as qualified. When the low-temperature performance change evaluation value of the target processed cable is greater than the cable low-temperature detection performance change threshold, the low-temperature adaptability and reliability of the target processed cable are marked as unqualified. The cable performance change data specifically include: tensile variables of the target processed cable, instantaneous tensile force of the target processed cable at break, and the increase in surface cracks of the target processed cable after low temperature testing; The specific calculation formula for the low temperature performance change evaluation value of the target processed cable is: ； In the formula Indicates the low temperature performance change evaluation value of the target processed cable, A tensile variable representing the target processed cable, Indicates the instantaneous tensile force of the target processing cable at break, Indicates the increase in surface cracks of the target processed cable after low temperature testing, represents the reference value of the stretched variable, Indicates the reference value of the instantaneous tensile force at break. Indicates the reference value of the increase in surface cracks, represents the weight factor of the stretched variable, represents the weight factor of the instantaneous tensile force at fracture, A weighting factor representing the amount of surface crack increase.

2. A low temperature detection method based on cable processing according to claim 1, characterized in that ,The low temperature detection report of the target processing cable specifically includes: the temperature set by the low temperature chamber of the low temperature detection equipment, the initial information of the target processing cable, the cable low temperature detection performance parameters of the target processing cable, the cable performance change data of the target processing cable, and the evaluation and marking results of the low temperature adaptability and reliability of the target processing cable.

3. A low temperature detection device based on cable processing, using a low temperature detection method based on cable processing as described in any one of claims 1-2, characterized in that: include: A processor for processing computer program instructions stored in the memory at runtime; Low-temperature detection feasibility assessment module, which is used to analyze the performance index information of low-temperature detection equipment obtained by monitoring simulated cable low-temperature detection, conduct reliability assessment on low-temperature detection equipment, and determine whether the low-temperature detection equipment is suitable for actual cable low-temperature detection; A data acquisition module is used to determine the benchmark applicable to the actual cable low-temperature detection based on the low-temperature detection equipment, monitor the low-temperature detection process of the target processed cable, and obtain the low-temperature detection environment temperature and cable performance change data during the monitoring process; Data analysis module, used to analyze cable performance change data and evaluate the low temperature adaptability and reliability of the target processed cable; The report generation module is used to generate a low-temperature detection report of the target processing cable according to the low-temperature adaptability and reliability evaluation results of the target processing cable.

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