High-frequency high-speed switch matrix test system based on data analysis

Abstract

The invention belongs to the technical field of high-frequency and high-speed cable testing, and particularly relates to a high-frequency and high-speed switch matrix testing system based on data analysis, which comprises a vector network analyzer set multi-channel switch matrix, a test capture analysis module and an operation interface module, according to the invention, the insertion loss, return loss, phase, time domain impedance, differential common mode suppression and crosstalk characteristics of the cable assembly are tested through the vector network analyzer and the multi-channel switch matrix, and the test capture analysis module determines the quality of the cable assembly based on various test data, so that the automation level is high; and the equipment combination performance condition and the starting influence condition of the test system can be accurately judged, so that a user is reminded to take corresponding improvement treatment measures in time, the smooth proceeding of the cable assembly test process is ensured, the test result accuracy is improved, and the test management difficulty is remarkably reduced.

Description

Technical Field

[0001] The invention relates to the technical field of high-frequency and high-speed cable testing, in particular to a high-frequency and high-speed switch matrix testing system based on data analysis. Background Art

[0002] With the rapid development of information technology, high-frequency and high-speed signal transmission is increasingly used in communications, computer networks, radio and television, and other fields. As a key component of signal transmission, the performance of cable assemblies directly affects the quality of signals and the stability of the system. Therefore, it is particularly important to accurately and efficiently test the produced cable assemblies. At present, when testing cable assemblies, the needs of comprehensive testing of cable assemblies cannot be met, and the performance status of the equipment combination of the test system and the startup impact status cannot be accurately judged before the test, which is not conducive to users to make corresponding improvement measures in time, and it is difficult to ensure the smooth progress of the cable assembly test process and improve the accuracy of the test results. The test management is difficult; In view of the above technical defects, a solution is now proposed. Summary of the invention

[0003] The purpose of the present invention is to provide a high-frequency and high-speed switch matrix test system based on data analysis, which solves the problems that the prior art cannot meet the needs of comprehensive testing of cable assemblies, and cannot accurately judge the performance status of the equipment combination and the startup impact status of the test system before testing, making it difficult to ensure the smooth progress of the cable assembly testing process and improve the accuracy of the test results, and the test management is difficult.

[0004] To achieve the above object, the present invention provides the following technical solutions: A high-frequency and high-speed switch matrix test system based on data analysis, including a vector network analyzer integrated with a multi-channel switch matrix, a test capture and analysis module, and an operation interface module; The user sets the test parameters through the operation interface module, and starts the test after the parameter settings are completed. The vector network analyzer combines the multi-channel switch matrix to test the insertion loss, return loss, phase, time domain impedance, differential common mode suppression and crosstalk characteristics of the cable assembly, and obtains the test data of each test item based on this, and sends the test data of each test item to the test capture analysis module; The test capture and analysis module determines the quality of the cable assembly based on various test data, and compares the insertion loss data, return loss data, phase data, time domain impedance data, differential common mode suppression data, near-end crosstalk data and far-end crosstalk data of the cable assembly with the corresponding preset data requirements one by one; If the insertion loss data, return loss data, phase data, time domain impedance data, differential common mode suppression data, near-end crosstalk data or far-end crosstalk data do not meet the corresponding preset data requirements, the cable assembly is marked as a low-quality cable; if the insertion loss data, return loss data, phase data, time domain impedance data, differential common mode suppression data, near-end crosstalk data and far-end crosstalk data all meet the corresponding preset data requirements, the cable assembly is marked as a high-quality cable, and the marking information of the corresponding cable assembly is sent to the operation interface module for display.

[0005] Further, the operation interface module is connected to the accessory combination risk assessment module in communication, and the accessory combination risk assessment module obtains all module devices currently equipped in the test system, and marks the corresponding module device as an analysis object i, where i is a natural number greater than 1; The monitoring period is set to T1 with the current date as the end date. The ratio of the number of failures of the analysis object i during the monitoring period to its service life is marked as the failure performance value, and the interval between the production date of the analysis object i and the current date and the service life are calculated to obtain the service life inspection value; the average interval time for maintenance of the analysis object i in the historical stage is calculated and marked as the maintenance condition value, and the interval time from the current time to the last time maintenance was performed on the analysis object i is marked as the adjacent maintenance inspection value; The target evaluation value is obtained by numerically calculating the fault performance value, the life inspection value, the maintenance condition value and the neighboring detection value, and the target evaluation value is numerically compared with the corresponding preset target evaluation threshold. If the target evaluation value exceeds the corresponding preset target evaluation threshold, the analysis object i is marked as a risky object; the number of risky objects is obtained and marked as a combined risk initial assessment value, and the combined risk initial assessment value is numerically compared with the preset combined risk initial assessment threshold. If the combined risk initial assessment value exceeds the preset combined risk initial assessment threshold, a combined high risk signal is generated; If the combined risk initial assessment value does not exceed the preset combined risk initial assessment threshold, the ratio of the target assessment value of the analysis object i to the corresponding preset target assessment threshold is marked as the target assessment value, the target assessment values ​​of all module devices are averaged to obtain the target comprehensive assessment value, and the target assessment value with the largest value is marked as the target assessment amplitude; The combined instability coefficient is obtained by numerically calculating the combined risk initial assessment value, the target comprehensive assessment value and the target assessment amplitude value, and the combined instability coefficient is numerically compared with the preset combined instability coefficient threshold value. If the combined instability coefficient exceeds the preset combined instability coefficient threshold value, a combined high-risk signal is generated; if the combined instability coefficient does not exceed the preset combined instability coefficient threshold value, a combined low-risk signal is generated, and the combined high-risk signal or the combined low-risk signal is sent to the operation interface module. When the operation interface module receives the combined high-risk signal, a corresponding warning is issued.

[0006] Furthermore, the accessory combination risk assessment module is communicatively connected to the start impact analysis module. Before testing the cable assembly, the accessory combination risk assessment module sends a combined low risk signal to the start impact analysis module. When the start impact analysis module receives the combined low risk signal, it obtains the cable scanning symbol XP-1 or XP-2 and the test ring inspection symbol HP-1 or HP-2. If XP-2∩HP-2 is obtained, a start low impact signal is generated. In other cases, a start high impact signal is generated. The start low impact signal or the start high impact signal is sent to the operation interface module. When the operation interface module receives the start high impact signal, a corresponding warning is issued.

[0007] Further, the startup impact analysis module is communicatively connected to the cable scanning analysis module and the test environmental assessment module. The cable scanning analysis module is used to collect the surface image of the cable assembly and judge its surface condition before testing the cable assembly, and assign the cable scanning symbol XP-1 or XP-2 accordingly, and send the cable scanning symbol XP-1 or XP-2 of the cable assembly to the startup impact analysis module; The test environment assessment module is used to detect and analyze the environment in which the test process is located before testing the cable assembly, and assign the test environment inspection symbol HP-1 or HP-2 accordingly, and send the test environment inspection symbol HP-1 or HP-2 to the startup impact analysis module.

[0008] Furthermore, the specific analysis process of the cable scanning analysis module is as follows: Based on the surface image of the cable assembly, the fractured part on the surface is identified. If there is a fractured part on the surface of the cable assembly, the cable scanning symbol XP-1 is assigned; If there is no broken part on the surface of the cable assembly, the wear area on the surface of the cable assembly is obtained, the areas of all the wear areas are summed up to obtain the wear occupancy value, and the average and maximum values ​​of the wear amounts of all the wear areas are marked as the wear depth value and the wear depth amplitude value respectively; The wear assessment value is obtained by numerically calculating the wear occupancy value, the wear depth value and the wear depth amplitude value, and the wear assessment value is numerically compared with the preset wear assessment threshold. If the wear assessment value exceeds the preset wear assessment threshold, the cable scanning symbol XP-1 is assigned; if the wear assessment value does not exceed the preset wear assessment threshold, the cable scanning symbol XP-2 is assigned.

[0009] Furthermore, the specific analysis process of testing the environmental assessment module is as follows: The intensity of the electromagnetic field in the test environment is collected and marked as the electromagnetic interference value, the noise intensity in the test environment is collected and marked as the environmental noise value, the deviation value of the temperature in the test environment compared to the preset suitable temperature value is marked as the environmental temperature value, and the deviation value of the humidity in the test environment compared to the preset suitable humidity value is marked as the environmental humidity value; The environmental inspection unsuitable value is obtained by numerically calculating the electromagnetic interference value, the environmental noise value, the environmental temperature value and the environmental humidity value. The environmental inspection performance value and the environmental inspection fluctuation value are obtained by mean calculation and variance calculation for all environmental inspection unsuitable values ​​in unit time. The environmental inspection performance value and the environmental inspection fluctuation value are numerically compared with the preset environmental inspection performance threshold value and the preset environmental inspection fluctuation threshold value respectively. If the environmental inspection performance value or the environmental inspection fluctuation value exceeds the corresponding preset threshold value, the environmental inspection symbol HP-1 is tested; if both the environmental inspection performance value and the environmental inspection fluctuation value do not exceed the corresponding preset threshold value, the environmental inspection symbol HP-2 is tested.

[0010] Furthermore, it also includes a production anomaly diagnosis and analysis module and a background supervision terminal. The production anomaly diagnosis module conducts progressive evaluation and analysis on the production performance of the cable assembly production line during the detection period, and determines through analysis whether to generate a production anomaly warning signal. When the production anomaly warning signal is generated, it is sent to the background supervision terminal, and the background supervision terminal issues a warning when receiving the production anomaly warning signal.

[0011] Furthermore, the specific analysis process of the production abnormality diagnosis and analysis module is as follows: The total number of cable assemblies produced by the production line of the cable assembly during the detection period is collected and marked as the total cable output value, and the number of cable assemblies corresponding to the cable scanning symbol XP-1 produced during the detection period is marked as the cable table anomaly value, and the number of low-quality cables produced during the detection period is marked as the cable low condition value; the cable table anomaly value and the cable low condition value are summed and the ratio of the sum result to the total cable output value is marked as the cable quality inspection value, the cable quality inspection value is numerically compared with the preset cable quality inspection threshold, and if the cable quality inspection value exceeds the preset cable quality inspection threshold, a production abnormality warning signal is generated; If the cable quality inspection value does not exceed the preset cable quality inspection threshold, the total amount of materials scrapped by the production line of the cable assembly during the inspection period is collected and the ratio of it to the total output value of the cable is marked as the scrap inspection value, and the cable production speed value is obtained by calculating the ratio of the total output value of the cable to the production time of the production line during the inspection period, and the deviation of the cable production speed value from the preset cable production speed standard value is marked as the production speed inspection value, and the total length of time that the production line stops running due to a fault during the inspection period is marked as the production line suspension value; The production abnormality warning coefficient is obtained by numerically calculating the cable quality inspection value, scrap inspection value, production speed inspection value and production line suspension value, and the production abnormality warning coefficient is numerically compared with the preset production abnormality warning coefficient threshold. If the production abnormality warning coefficient exceeds the preset production abnormality warning coefficient threshold, a production abnormality warning signal is generated.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by integrating multiple test functions such as insertion loss, return loss, phase, time domain impedance, differential common mode suppression, crosstalk, etc., the needs of comprehensive testing of cable assemblies are met, the automation level is high, the workload of users is significantly reduced, and the performance status of the equipment combination of the test system and the start-up impact status can be accurately judged. When a combined high-risk signal is generated or a high-impact signal is started, the cable assembly test is temporarily not performed, thereby ensuring the smooth progress of the cable assembly test process and improving the accuracy of the test results, and significantly reducing the difficulty of test management; 2. In the present invention, the production performance of the cable assembly production line during the detection period is progressively evaluated and analyzed through the production anomaly diagnosis module. The analysis is used to determine whether a production anomaly warning signal is generated. When a production anomaly warning signal is generated, the background supervision end issues an early warning to remind production management personnel to conduct cause investigation and analysis and make reasonable improvement measures for the corresponding production line, and strengthen the subsequent operation supervision of the corresponding production line to ensure the subsequent stable operation of the cable assembly production line and improve the quality of the produced cable assemblies. The degree of intelligence is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings; Figure 1 This is a system block diagram of Embodiment 1 of the present invention; Figure 2 It is a system block diagram of Embodiment 2 and Embodiment 3 of the present invention; Figure 3 This is a system block diagram of Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] Embodiment 1: Figure 1As shown, the present invention proposes a high-frequency and high-speed switch matrix test system based on data analysis, including a vector network analyzer integrated with a multi-channel switch matrix, a test capture and analysis module, and an operation interface module; The user sets the test parameters through the operation interface module, and starts the test after the parameter settings are completed. The vector network analyzer integrates the multi-channel switch matrix to test the insertion loss, return loss, phase, time domain impedance, differential common mode suppression and crosstalk characteristics of the cable assembly, and obtains the test data of each test item based on this, and sends the test data of each test item to the test capture analysis module; The test capture and analysis module determines the quality of the cable assembly based on various test data, and compares the insertion loss data, return loss data, phase data, time domain impedance data, differential common mode suppression data, near-end crosstalk data and far-end crosstalk data of the cable assembly with the corresponding preset data requirements one by one; If the insertion loss data, return loss data, phase data, time domain impedance data, differential common mode suppression data, near-end crosstalk data or far-end crosstalk data do not meet the corresponding preset data requirements, the cable assembly is marked as a low-quality cable; if the insertion loss data, return loss data, phase data, time domain impedance data, differential common mode suppression data, near-end crosstalk data and far-end crosstalk data all meet the corresponding preset data requirements, the cable assembly is marked as a high-quality cable, and the marking information of the corresponding cable assembly is sent to the operation interface module for display.

[0016] The present invention integrates multiple test functions such as insertion loss, return loss, phase, time domain impedance, differential common mode suppression, crosstalk, etc., which can greatly shorten the test time and ensure the accuracy and reliability of the test results. It also meets the needs of comprehensive testing of cable components, has a high level of automation, and significantly reduces the user's workload.

[0017] Embodiment 2: Figure 2 As shown, the difference between this embodiment and the first embodiment is that the operation interface module is connected to the accessory combination risk assessment module by communication, and the accessory combination risk assessment module obtains all module devices currently equipped with the test system (that is, all devices constituting the test system), and marks the corresponding module device as an analysis object i, where i is a natural number greater than 1; The monitoring period is set to T1 with the current date as the end date. Preferably, T1 is forty days. The ratio of the number of failures of the analysis object i during the monitoring period to its service life is marked as the failure performance value, and the ratio of the interval between the production date of the analysis object i and the current date to the service life is calculated to obtain the service life inspection value. The average interval time of maintenance for the analysis object i in the historical stage is marked as the maintenance condition value, and the interval time between the current time and the last time maintenance was performed on the analysis object i is marked as the neighboring dimension detection value; The target evaluation value WPi is obtained by numerically calculating the fault performance value WXi, the life inspection value WFi, the maintenance condition value WSi and the neighboring inspection value WNi through the formula WPi=h1*WXi+h2*WFi+(h3*WSi+h4*WNi) / 2; wherein h1, h2, h3 and h4 are preset proportional coefficients, and the larger the value of the target evaluation value WPi is, the worse the current state of the analysis object i is, and the more likely it is to have abnormalities during use; The target evaluation value WPi is numerically compared with the corresponding preset target evaluation threshold. If the target evaluation value WPi exceeds the corresponding preset target evaluation threshold, it indicates that the current state of the analysis object i is poor and abnormalities are more likely to occur during use, then the analysis object i is marked as a risky object; The number of risky objects is obtained and marked as a combined risk preliminary assessment value, and the combined risk preliminary assessment value is numerically compared with a preset combined risk preliminary assessment threshold value. If the combined risk preliminary assessment value exceeds the preset combined risk preliminary assessment threshold value, it indicates that the combined condition of the current test system is poor, which is not conducive to ensuring the stability of the test process and the accuracy of the test results, and a combined high risk signal is generated; If the combined risk initial assessment value does not exceed the preset combined risk initial assessment threshold, the ratio of the target assessment value of the analysis object i to the corresponding preset target assessment threshold is marked as the target assessment value, the target assessment values ​​of all module devices are averaged to obtain the target comprehensive assessment value, and the target assessment value with the largest value is marked as the target assessment amplitude; The combined risk initial assessment value YQ, target comprehensive assessment value YW and target assessment amplitude value YL are numerically calculated by the formula FX=rg1*YQ+(rg2*YW+rg3*YL) / 2 to obtain the combined instability coefficient FX; wherein, rg1, rg2, rg3 are preset proportional coefficients, rg1>rg2>rg3>0; and, the larger the value of the combined instability coefficient FX is, the less ideal the current equipment combination of the test system is in general, and the less conducive it is to ensuring the stability of the test process and the accuracy of the test results; The combined instability coefficient FX is numerically compared with the preset combined instability coefficient threshold. If the combined instability coefficient exceeds the preset combined instability coefficient threshold, it indicates that the current equipment combination of the test system is not ideal in general, which is not conducive to ensuring the stability of the test process and the accuracy of the test results, and a combined high-risk signal is generated; if the combined instability coefficient FX does not exceed the preset combined instability coefficient threshold, it indicates that the current equipment combination of the test system is ideal in general, which is conducive to ensuring the stability of the test process and the accuracy of the test results, and a combined low-risk signal is generated; And the combined high-risk signal or the combined low-risk signal is sent to the operation interface module. When the operation interface module receives the combined high-risk signal, it will issue a corresponding warning. It can reasonably analyze and accurately judge the performance status of the equipment combination of the test system before testing. When the user receives the corresponding warning, he can replace and adjust the corresponding module equipment as needed, which is conducive to ensuring the stability of the test process and the accuracy of the test results, and significantly reducing the difficulty of test management.

[0018] Embodiment 3: Figure 2 As shown, the difference between this embodiment and the first and second embodiments is that the accessory combination risk assessment module is communicatively connected to the startup impact analysis module. Before testing the cable assembly, the accessory combination risk assessment module sends a combination low risk signal to the startup impact analysis module. The startup impact analysis module obtains the cable scanning symbol XP-1 or XP-2 and the test ring inspection symbol HP-1 or HP-2. If XP-2∩HP-2 is obtained, it indicates that the corresponding influencing factor has little adverse effect on the test process, and a startup low impact signal is generated. In other cases (XP-1∩HP-1, XP-1∩HP-2 or XP-2∩HP-1), it indicates that the corresponding influencing factor has a large adverse effect on the test process, and a startup high impact signal is generated. A low-impact start signal or a high-impact start signal is sent to the operation interface module. When the low-impact start signal is generated, the user starts the test of the cable assembly. When the operation interface module receives the high-impact start signal, a corresponding warning is issued. When the user receives the corresponding warning, the user temporarily does not test the cable assembly and takes corresponding improvement measures, thereby reducing the adverse effects of cable surface quality factors and test environment factors on the test process and further reducing the difficulty of test management.

[0019] Specifically, the startup impact analysis module is communicatively connected to the cable scanning analysis module and the test environmental assessment module. The cable scanning analysis module is used to collect the surface image of the cable assembly and judge its surface condition before testing the cable assembly, and assign the cable scanning symbol XP-1 or XP-2 accordingly, and send the cable scanning symbol XP-1 or XP-2 of the cable assembly to the startup impact analysis module, which can not only accurately judge the surface condition of the cable assembly to be tested, so as to avoid unnecessary testing of the cable assembly with abnormal surface and waste time, manpower and material resources, but also provide information support for the analysis process of the startup impact analysis module; the specific analysis process is as follows: Based on the surface image of the cable assembly, the broken parts on the surface are identified. If there are broken parts on the surface of the cable assembly, it means that the cable assembly is seriously damaged and its quality is poor. It is not meaningful to test it, so the cable scanning symbol XP-1 is given; If there is no broken part on the surface of the cable assembly, the wear area on the surface of the cable assembly (i.e., the area with wear on the surface) is obtained, the areas of all the wear areas are summed up to obtain the wear occupancy value, and the average and maximum values ​​of the wear amounts of all the wear areas are marked as the wear depth value and the wear depth amplitude value respectively; By formula The wear assessment value LX is obtained by numerically calculating the wear occupancy value LP, the wear depth value LS and the wear depth amplitude value LM; wherein wq1, wq2 and wq3 are preset proportional coefficients, and wq1>wq2>wq3>0; and the larger the value of the wear assessment value LX, the worse the surface condition of the cable assembly is, and the less meaningful it is to test it; The wear assessment value LX is numerically compared with the preset wear assessment threshold. If the wear assessment value LX exceeds the preset wear assessment threshold, it indicates that the surface condition of the cable assembly to be tested is poor and there is little significance in testing it, and the cable scanning symbol XP-1 is assigned; if the wear assessment value LX does not exceed the preset wear assessment threshold, it indicates that the surface condition of the cable assembly to be tested is good, and the cable scanning symbol XP-2 is assigned.

[0020] Furthermore, the test environment assessment module is used to detect and analyze the environment in which the test process is located before testing the cable assembly, and assign the test environment inspection symbol HP-1 or HP-2 accordingly, and send the test environment inspection symbol HP-1 or HP-2 to the startup impact analysis module, which can not only accurately feedback the abnormal conditions of the environment in which the test process is located to avoid the adverse effects on the accuracy of the test results due to environmental factors, but also provide information support for the analysis process of the startup impact analysis module; the specific analysis process is as follows: The intensity of the electromagnetic field in the test environment is collected and marked as the electromagnetic interference value, the noise intensity in the test environment is collected and marked as the environmental noise value, the deviation value of the temperature in the test environment compared to the preset suitable temperature value is marked as the environmental temperature value, and the deviation value of the humidity in the test environment compared to the preset suitable humidity value is marked as the environmental humidity value; The electromagnetic interference value GW, the environmental noise value GY, the environmental temperature value GS and the environmental humidity value GK are numerically calculated by the formula GM=(a1*GW+a2*GY+a3*GS+a4*GK) / 4 to obtain the environmental inspection unsuitable value GM; wherein a1, a2, a3 and a4 are preset proportional coefficients with values ​​greater than zero, and the larger the value of the environmental inspection unsuitable value GM is, the worse the real-time test environment of the cable assembly is; The mean and variance of all the environmental inspection inappropriate values ​​within a unit time are calculated to obtain the environmental inspection performance value and the environmental inspection fluctuation value. It should be noted that the larger the value of the environmental inspection performance value, the worse the environmental condition of the test environment, and the larger the value of the environmental inspection fluctuation value, the more unstable the environmental condition of the test environment, which is not conducive to ensuring the accuracy of the test results; The environmental inspection performance value and the environmental inspection fluctuation value are numerically compared with the preset environmental inspection performance threshold and the preset environmental inspection fluctuation threshold respectively. If the environmental inspection performance value or the environmental inspection fluctuation value exceeds the corresponding preset threshold, it indicates that the test environment is not conducive to ensuring the accuracy of the test results on the whole, and the test environmental inspection symbol HP-1 is performed; if both the environmental inspection performance value and the environmental inspection fluctuation value do not exceed the corresponding preset threshold, it indicates that the test environment is conducive to ensuring the accuracy of the test results on the whole, and the test environmental inspection symbol HP-2 is performed.

[0021] Embodiment 4: Figure 3 As shown, the difference between this embodiment and the first, second and third embodiments is that it further includes a production abnormality diagnosis and analysis module and a background monitoring terminal, the background monitoring terminal is in communication connection with the production abnormality diagnosis and analysis module, the production abnormality diagnosis module performs a progressive evaluation and analysis on the production performance of the production line of the cable assembly during the detection period, and determines whether to generate a production abnormality warning signal through analysis; When a production abnormality warning signal is generated, it is sent to the background supervision end. When the background supervision end receives the production abnormality warning signal, it issues a warning to remind production management personnel to conduct cause investigation and analysis, and make reasonable improvement measures for the corresponding production line, and strengthen the subsequent operation supervision of the corresponding production line, so as to ensure the subsequent stable operation of the cable assembly production line and improve the quality of the produced cable assemblies. The specific analysis process of the production abnormality diagnosis and analysis module is as follows: The total number of cable assemblies produced by the production line of the cable assembly during the detection period is collected and marked as the total cable output value, and the number of cable assemblies corresponding to the cable scanning symbol XP-1 produced during the detection period is marked as the cable table abnormality value, and the number of low-quality cables produced during the detection period is marked as the cable low condition value; The cable abnormal table value and the cable low condition value are summed and calculated, and the ratio of the sum result to the total output value of the cable is marked as the cable quality inspection value, wherein the larger the value of the cable quality inspection value is, the worse the quality of the cable components produced by the production line during the detection period is. The cable quality inspection value is numerically compared with the preset cable quality inspection threshold value. If the cable quality inspection value exceeds the preset cable quality inspection threshold value, it indicates that the quality of the cable components produced by the production line during the detection period is poor, and a production abnormality warning signal is generated; If the cable quality inspection value does not exceed the preset cable quality inspection threshold, the total amount of materials scrapped by the production line of the cable assembly during the inspection period is collected and the ratio of it to the total output value of the cable is marked as the scrap inspection value, and the cable production speed value is obtained by calculating the ratio of the total output value of the cable to the production time of the production line during the inspection period, and the deviation of the cable production speed value from the preset cable production speed standard value is marked as the production speed inspection value, and the total length of time that the production line stops running due to a fault during the inspection period is marked as the production line suspension value; By formula The cable quality inspection value NY, the scrap inspection value NL, the production speed inspection value NK and the production line suspension value NW are numerically calculated to obtain the production abnormality warning coefficient NP; wherein, uy1, uy2, uy3, and uy4 are preset proportional coefficients with values ​​greater than zero, and the larger the value of the production abnormality warning coefficient NP is, the worse the overall operation performance of the production line during the inspection period is; The production anomaly warning coefficient NP is numerically compared with the preset production anomaly warning coefficient threshold. If the production anomaly warning coefficient NP exceeds the preset production anomaly warning coefficient threshold, it indicates that the overall operating performance of the production line during the detection period is poor, and a production anomaly warning signal is generated.

[0022] The working principle of the present invention is as follows: when in use, the user sets the test parameters through the operation interface module, and starts the test after the parameter setting is completed. The test capture and analysis module determines the quality of the cable assembly based on various test data, with a high level of automation. Before the test, the accessory combination risk assessment module is used to reasonably analyze and accurately judge the performance status of the equipment combination of the test system. When a combined low-risk signal is generated, the impact analysis module is started to analyze the adverse effects of the corresponding influencing factors on the test process. When a combined high-risk signal is generated or a high-impact signal is started, the cable assembly test is temporarily not performed and corresponding processing and improvement measures are taken, thereby ensuring the smooth progress of the cable assembly test process and improving the accuracy of the test results, significantly reducing the difficulty of test management.

[0023] The above formulas are all dimensionless and numerical calculations. The formula is a formula obtained by collecting a large amount of data and performing software simulation to obtain the most recent real situation. The preset parameters in the formula are set by technicians in this field according to actual conditions. The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the contents of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can understand and use the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A high-frequency and high-speed switch matrix test system based on data analysis, characterized in that: It includes a vector network analyzer integrated with a multi-channel switch matrix, a test capture and analysis module, and an operation interface module; The user sets the test parameters through the operation interface module, and starts the test after the parameter settings are completed. The vector network analyzer combines the multi-channel switch matrix to test the insertion loss, return loss, phase, time domain impedance, differential common mode suppression and crosstalk characteristics of the cable assembly, and obtains the test data of each test item based on this, and sends the test data of each test item to the test capture analysis module; The test capture and analysis module determines the quality of the cable assembly based on various test data, and compares the insertion loss data, return loss data, phase data, time domain impedance data, differential common mode suppression data, near-end crosstalk data and far-end crosstalk data of the cable assembly with the corresponding preset data requirements one by one; If the insertion loss data, return loss data, phase data, time domain impedance data, differential common mode suppression data, near-end crosstalk data or far-end crosstalk data do not meet the corresponding preset data requirements, the cable assembly is marked as a low-quality cable; if the insertion loss data, return loss data, phase data, time domain impedance data, differential common mode suppression data, near-end crosstalk data and far-end crosstalk data all meet the corresponding preset data requirements, the cable assembly is marked as a high-quality cable, and the marking information of the corresponding cable assembly is sent to the operation interface module for display.

2. A high-frequency and high-speed switch matrix test system based on data analysis according to claim 1, characterized in that: The operation interface module is communicated with the accessory combination risk assessment module, and the accessory combination risk assessment module obtains all module devices currently equipped in the test system, and marks the corresponding module device as an analysis object i, where i is a natural number greater than 1; The target evaluation value is obtained by numerically calculating the fault performance value, the life inspection value, the maintenance condition value and the neighboring detection value. If the target evaluation value exceeds the corresponding preset target evaluation threshold, the analysis object i is marked as a risky object; the number of risky objects is obtained and marked as a combined risk initial evaluation value. If the combined risk initial evaluation value exceeds the preset combined risk initial evaluation threshold, a combined high risk signal is generated; If the initial risk assessment value of the combination does not exceed the preset initial risk assessment threshold of the combination, the combination instability coefficient is obtained by numerically calculating the initial risk assessment value of the combination, the target comprehensive assessment value and the target assessment amplitude. If the combination instability coefficient exceeds the preset combination instability coefficient threshold, a combination high risk signal is generated; If the combined instability coefficient does not exceed the preset combined instability coefficient threshold, a combined low risk signal is generated, and a combined high risk signal or a combined low risk signal is sent to the operation interface module.

3. A high-frequency and high-speed switch matrix test system based on data analysis according to claim 4, characterized in that: The accessory combination risk assessment module is communicated with the startup impact analysis module. The accessory combination risk assessment module sends a combination low risk signal to the startup impact analysis module. When the startup impact analysis module receives the combination low risk signal, it obtains the cable scanning symbol XP-1 or XP-2 and the test ring inspection symbol HP-1 or HP-2. If XP-2∩HP-2 is obtained, a startup low impact signal is generated. In other cases, a startup high impact signal is generated, and the startup low impact signal or the startup high impact signal is sent to the operation interface module.

4. A high-frequency and high-speed switch matrix test system based on data analysis according to claim 3, characterized in that: The startup impact analysis module is communicatively connected to the cable scanning analysis module and the test environmental assessment module. The cable scanning analysis module is used to collect the surface image of the cable assembly and judge its surface condition before testing the cable assembly, and assign the cable scanning symbol XP-1 or XP-2 accordingly, and send the cable scanning symbol XP-1 or XP-2 of the cable assembly to the startup impact analysis module; The test environment assessment module is used to detect and analyze the environment in which the test process is located before testing the cable assembly, and assign the test environment inspection symbol HP-1 or HP-2 accordingly, and send the test environment inspection symbol HP-1 or HP-2 to the startup impact analysis module.

5. A high-frequency and high-speed switch matrix test system based on data analysis according to claim 4, characterized in that: The specific analysis process of the cable scanning analysis module is as follows: Based on the surface image of the cable assembly, the broken parts on its surface are identified. If there are broken parts on the surface of the cable assembly, the cable scanning symbol XP-1 is assigned; if there are no broken parts on the surface of the cable assembly, the wear assessment value is obtained by numerically calculating the wear occupancy value, the wear depth value and the wear depth amplitude. If the wear assessment value exceeds the preset wear assessment threshold, the cable scanning symbol XP-1 is assigned; if the wear assessment value does not exceed the preset wear assessment threshold, the cable scanning symbol XP-2 is assigned.

6. A high-frequency and high-speed switch matrix test system based on data analysis according to claim 4, characterized in that: The specific analysis process of testing the environmental assessment module is as follows: The environmental inspection unsuitable value is obtained by numerically calculating the electromagnetic interference value, environmental noise value, environmental temperature value and environmental humidity value. The mean and variance of all environmental inspection unsuitable values ​​in unit time are calculated to obtain the environmental inspection performance value and the environmental inspection fluctuation value. If the environmental inspection performance value or the environmental inspection fluctuation value exceeds the corresponding preset threshold, the environmental inspection symbol HP-1 is tested; if both the environmental inspection performance value and the environmental inspection fluctuation value do not exceed the corresponding preset threshold, the environmental inspection symbol HP-2 is tested.

Images