Plane pressure test system for hollow board detection

Abstract

The present invention relates to the technical field of plate pressure testing, and in particular to a plane pressure testing system based on hollow plate detection, comprising a test supervision platform, an information management unit, a front-end information unit, an interference assessment unit, a time period risk unit, an information feedback unit and an execution response unit; the present invention performs analysis from two perspectives, before the test and during the test, to improve the validity and credibility of the analysis results of the test equipment, while reducing the test error risk of the test equipment, and under normal conditions before the test, performs analysis from two perspectives, namely, operation performance in the test and information transmission in the test, to reduce the error interference risk in the test, which helps to improve the accuracy of subsequent results, that is, performs operation performance safety supervision assessment analysis on execution risk data to reduce the impact of the test equipment on the detection results, and performs test information safety supervision feedback analysis on information risk data by means of information feedback to ensure the accuracy and credibility of the analysis results.

Description

Technical Field

[0001] The invention relates to the technical field of plate pressure testing, and in particular to a plane pressure testing system for hollow plate detection. Background Art

[0002] Hollow board is a commonly used packaging material. It is widely used in electronic products, household appliances, medicine, food and other industries due to its small wall thickness, light structure, and easy transportation and use. The edge of the hollow board is its most vulnerable part, which is easily damaged or deformed by a large external force. Therefore, the edge pressure of the hollow board is required to be high.

[0003] However, in the prior art, it is impossible to monitor and feedback the information collected before the test and the hollow board itself, which reduces the validity of the data collected before the test and causes the collected data to be invalid, which is not conducive to the normal progress of the test. In addition, it is impossible to monitor the equipment operation performance and information security during the test, which affects the credibility and accuracy of the analysis results.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a plane pressure testing system based on hollow plate detection to solve the above-mentioned technical defects. The present invention analyzes from two perspectives: before the test and during the test, so as to improve the validity and credibility of the analysis results of the test equipment, and reduce the test error risk of the test equipment. Under normal conditions before the test, analysis is performed from two perspectives: operation performance and information transmission during the test, so as to reduce the risk of error interference during the test, which helps to improve the accuracy of subsequent results, that is, an operation performance safety supervision assessment analysis is performed on the execution risk data to determine whether the operation performance of the test equipment during the detection process is normal, so as to reduce the impact of the test equipment on the detection results, and a test information safety supervision feedback analysis is performed on the information risk data through information feedback to determine whether the hollow plate test information is safe, so as to ensure the accuracy and credibility of the subsequent analysis results.

[0006] The object of the present invention can be achieved by the following technical solutions: Based on the plane pressure testing system for hollow plate detection, it includes a test supervision platform, an information management unit, a front-end information unit, an interference assessment unit, a time period risk unit, an information feedback unit and an execution response unit;

[0007] When the test supervision platform generates an operation management instruction, the operation management instruction is sent to the information management unit. After receiving the operation management instruction, the information management unit immediately collects the error risk data of the pressure sensor and the interference data of the hollow plate. The error risk data includes the collection deviation value and the information error rate, and the interference data includes the defect interference value and the offset interference value. The error risk data and the interference data are sent to the front-end information unit and the interference evaluation unit respectively. After receiving the error risk data, the front-end information unit immediately performs information error risk supervision evaluation analysis on the error risk data, sends the obtained normal signal to the time period risk unit, and sends the obtained abnormal signal to the execution response unit;

[0008] After receiving the interference data, the interference assessment unit immediately performs its own deviation interference supervision operation on the interference data, sends the obtained qualified signal to the time period risk unit, and sends the obtained deviation signal to the execution response unit via the time period risk unit;

[0009] After receiving the normal signal and the qualified signal, the time period risk unit immediately collects the execution risk data of the test equipment, the execution risk data includes the actual interference value and the control error value, and performs an operation performance safety supervision assessment and analysis on the execution risk data, sends the obtained stable signal to the information feedback unit, and sends the obtained management signal to the execution response unit;

[0010] After receiving the stable signal, the information feedback unit immediately collects the information risk data of the test equipment, which includes the information deviation risk value and the external interference value, and performs test information security supervision feedback analysis on the information risk data, and sends the obtained information credibility signal and information failure signal to the execution response unit.

[0011] Preferably, the information error risk supervision assessment and analysis process of the front-end information unit is as follows:

[0012] Set a monitoring cycle and set it as a time threshold, obtain the position deviation value of each pressure sensor in the detection platform within the time threshold, the position deviation value represents the part of the interval straight-line distance between the pressure sensors that deviates from the set interval straight-line distance, obtain the maximum and minimum values ​​of the position deviation value, and set the difference between the maximum and minimum values ​​of the position deviation value as the acquisition deviation value;

[0013] The operating value of each pressure sensor in the detection platform within the time threshold is obtained, and the operating value represents the total duration from the time the pressure sensor starts to be powered on to the time the power is turned off. The proportion of the duration corresponding to the operating temperature of each pressure sensor in the operating value exceeding the preset operating temperature threshold is obtained, and it is set as the error risk value, and the proportion of the number of sensors corresponding to the error risk value greater than the preset error risk value threshold is set as the information error rate.

[0014] Preferably, the collection deviation value and the information error rate are compared and analyzed with the preset collection deviation value threshold and the preset information error rate threshold that are internally recorded and stored:

[0015] If the acquisition deviation value is less than the preset acquisition deviation value threshold, and the information error rate is less than the preset information error rate threshold, a normal signal is generated;

[0016] If the collection deviation value is greater than or equal to the preset collection deviation value threshold, or the information error rate is greater than or equal to the preset information error rate threshold, an abnormal signal is generated.

[0017] Preferably, the interference assessment unit's own offset interference supervision operation process is as follows:

[0018] The hollow plate on the detection platform within the time threshold is obtained, and it is set as the plate to be detected. The plate to be detected is divided into i sub-region blocks, where i is a natural number greater than zero. The performance feature image of each sub-region block within the time threshold is obtained. The number of interference parameters is obtained from the performance feature image and set as the interference item value. The interference parameters include cracks and bulges. The interference item value is compared and analyzed with the stored preset interference item value threshold, and the number of sub-region blocks corresponding to the interference item value greater than the preset interference item value threshold is set as the defect interference value.

[0019] Set the midpoint line of the left and right sides of the detection platform as the X-axis, set the midpoint line of the front and back sides of the detection platform as the Y-axis, set the intersection of the X-axis and the Y-axis as point O, obtain the area of ​​the area in the corresponding quadrant after the hollow plate is placed, and set it as the position evaluation value, obtain the maximum and minimum values ​​of the position evaluation value, and set the difference between the maximum and minimum values ​​of the position evaluation value as the offset interference value.

[0020] Preferably, the defect interference value and the offset interference value are compared and analyzed with the preset defect interference value threshold and the preset offset interference value threshold which are recorded and stored internally:

[0021] If the defect interference value is less than the preset defect interference value threshold, and the offset interference value is less than the preset offset interference value threshold, a qualified signal is generated;

[0022] If the defect interference value is greater than or equal to a preset defect interference value threshold, or the offset interference value is greater than or equal to a preset offset interference value threshold, an offset signal is generated.

[0023] Preferably, the operation performance safety supervision assessment and analysis process of the period risk unit is as follows:

[0024] S1: Obtain the detection period of the board to be detected within the time threshold, divide the detection period into g sub-periods, where g is a natural number greater than zero, obtain the number of deviations of the values ​​corresponding to the actual operating parameters of the test equipment in each sub-period from the set threshold, and set it as the actual deviation value, the actual operating parameters include the downward pressure speed risk value and the operating voltage mean, the downward pressure speed risk value represents the difference between the downward pressure speed characteristic curve and the set downward pressure speed characteristic curve, construct a set A of actual deviation values, obtain the discrete coefficient of set A, and set it as the actual interference value;

[0025] S2: Obtain the total number of command switching times of the test device within the detection period, obtain the response time corresponding to each command switching number, the response time represents the time between the command generation time and the command execution end time, compare and analyze the response time with the stored preset response time threshold, and set the ratio between the number of command switching times corresponding to the response time exceeding the preset response time threshold and the total number of command switching times as the control error value, and label the actual interference value and the control error value as SG and WT respectively;

[0026] S3: Obtain the operation performance evaluation coefficient G according to the formula, and compare and analyze the operation performance evaluation coefficient G with the preset operation performance evaluation coefficient threshold value stored internally:

[0027] If the ratio between the operation performance evaluation coefficient G and the preset operation performance evaluation coefficient threshold is less than 1, a stable signal is generated;

[0028] If the ratio between the operation performance evaluation coefficient G and the preset operation performance evaluation coefficient threshold is greater than or equal to 1, a management signal is generated.

[0029] Preferably, the test information security supervision feedback analysis process of the information feedback unit is as follows:

[0030] T1: Obtain the information deviation risk value of the test equipment in each sub-time period. The information deviation risk value represents the product of the transmission delay duration and the transmission obstruction value after data normalization. The transmission delay duration represents the portion of the time from the start of data collection to the data display time that exceeds the preset duration. The transmission obstruction value represents the proportion of the line crack length in the transmission length of the transmission line.

[0031] T2: Obtain the external interference value of the test equipment in each sub-time period. The external interference value represents the product of the number of change values ​​corresponding to the interference impact parameter exceeding the preset threshold and the duration after data normalization. The interference impact parameter includes the electromagnetic interference value and the conduction resistance value.

[0032] T3: Compare and analyze the information bias risk value and external interference value with the preset information bias risk value threshold and preset external interference value threshold that are stored internally:

[0033] If the information bias risk value is less than the preset information bias risk value threshold, and the external interference value is less than the preset external interference value threshold, a timeliness signal is generated;

[0034] If the information deviation risk value is greater than or equal to the preset information deviation risk value threshold, or the external interference value is greater than or equal to the preset external interference value threshold, a risk signal is generated, and then the number of sub-time periods corresponding to the timeliness signal is obtained, and the number of sub-time periods corresponding to the risk signal is obtained at the same time, and the ratio between the number of sub-time periods corresponding to the risk signal and the number of sub-time periods corresponding to the timeliness signal is set as the information credibility coefficient, and the information credibility coefficient is compared and analyzed with the preset information credibility coefficient threshold stored in the internal input:

[0035] If the ratio between the information credibility coefficient and the preset information credibility coefficient threshold is less than 1, an information credibility signal is generated;

[0036] If the ratio between the information credibility coefficient and the preset information credibility coefficient threshold is greater than or equal to 1, an information failure signal is generated.

[0037] The beneficial effects of the present invention are as follows:

[0038] (1) The present invention improves the validity and credibility of the analysis results of the test equipment by analyzing from two perspectives: before the test and during the test, while reducing the test error risk of the test equipment. That is, the present invention analyzes from two points of view: information collection before the test and the hollow plate itself, which helps to reduce the error interference before the test and provides data support for subsequent test analysis, that is, information error risk supervision and evaluation analysis is performed on the error risk data, so that the pressure sensor can be managed according to the information feedback, and the interference data can be self-drift interference supervision operation, so that the hollow plate can be adjusted in time to reduce the influence of the hollow plate on the test results;

[0039] (2) Under normal conditions before the test, the present invention performs analysis from two perspectives: operational performance and information transmission during the test, so as to reduce the risk of error interference during the test and help improve the accuracy of subsequent results. That is, an operational performance safety supervision assessment analysis is performed on the execution risk data to determine whether the operational performance of the test equipment during the test is normal, so as to reduce the impact of the test equipment on the test results. The information risk data is subjected to test information safety supervision feedback analysis by means of information feedback to determine whether the hollow plate test information is safe, so as to ensure the accuracy and credibility of the subsequent analysis results. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described below in conjunction with the accompanying drawings;

[0041] Figure 1 It is a flowchart of the system of the present invention;

[0042] Figure 2 It is a partial reference diagram of the second embodiment of the present invention. DETAILED DESCRIPTION

[0043] 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.

[0044] Embodiment 1:

[0045] See also Figure 1 to Figure 2 As shown, the present invention is a plane pressure testing system for hollow plate detection, including a test supervision platform, an information management unit, a front-end information unit, an interference assessment unit, a time period risk unit, an information feedback unit and an execution response unit. The test supervision platform is connected to the information management unit in a one-way communication manner, the information management unit is connected to the front-end information unit and the interference assessment unit in a one-way communication manner, the front-end information unit and the interference assessment unit are connected to the time period risk unit in a one-way communication manner, the front-end information unit is connected to the execution response unit in a one-way communication manner, the time period risk unit is connected to the information feedback unit and the execution response unit in a one-way communication manner, and the information feedback unit is connected to the execution response unit in a one-way communication manner;

[0046] When the test supervision platform generates an operation management instruction, the operation management instruction is sent to the information management unit. After receiving the operation management instruction, the information management unit immediately collects the error risk data of the pressure sensor and the interference data of the hollow plate. The error risk data includes the collection deviation value and the information error rate, and the interference data includes the defect interference value and the offset interference value. The error risk data and the interference data are sent to the front-end information unit and the interference evaluation unit respectively. After receiving the error risk data, the front-end information unit immediately performs information error risk supervision evaluation and analysis on the error risk data to determine whether the information validity risk of the pressure sensor is too high, so as to provide timely early warning feedback management, so as to manage the pressure sensor according to the information feedback situation, so as to ensure the validity and reliability of the collected data. The specific information error risk supervision evaluation and analysis process is as follows:

[0047] Set a monitoring cycle and set it as a time threshold, obtain the position deviation value of each pressure sensor in the detection platform within the time threshold, the position deviation value represents the part of the interval straight-line distance between the pressure sensors that deviates from the set interval straight-line distance, obtain the maximum and minimum values ​​of the position deviation value, and set the difference between the maximum and minimum values ​​of the position deviation value as the collection deviation value. It should be noted that the larger the value of the collection deviation value, the greater the risk of data collection deviation in the detection process;

[0048] The operating value of each pressure sensor in the detection platform within the time threshold is obtained, and the operating value represents the total duration from the time when the pressure sensor starts to be powered on to the time when the power is ended. The proportion of the duration corresponding to the operating temperature of each pressure sensor in the operating value exceeding the preset operating temperature threshold is obtained, and it is set as the error risk value, and the proportion of the number of sensors corresponding to the error risk value greater than the preset error risk value threshold is set as the information error rate. It should be noted that the larger the value of the information error rate, the greater the risk of deviation of the data collection in the detection process;

[0049] Compare and analyze the collection deviation value and information error rate with the preset collection deviation value threshold and preset information error rate threshold that are stored internally:

[0050] If the collection deviation value is less than the preset collection deviation value threshold, and the information error rate is less than the preset information error rate threshold, a normal signal is generated and sent to the time period risk unit;

[0051] If the acquisition deviation value is greater than or equal to the preset acquisition deviation value threshold, or the information error rate is greater than or equal to the preset information error rate threshold, an abnormal signal is generated and sent to the execution response unit. After receiving the abnormal signal, the execution response unit immediately displays the preset warning text "acquisition management" corresponding to the abnormal signal, so as to manage the pressure sensor according to the information feedback to ensure the validity and reliability of the collected data;

[0052] After receiving the interference data, the interference assessment unit immediately performs self-offset interference supervision on the interference data to determine whether the interference effect of the hollow plate itself on the detection is too high, so as to adjust the hollow plate in time to reduce the impact of the hollow plate on the detection results, so as to improve the accuracy and credibility of the detection results. The specific self-offset interference supervision operation process is as follows:

[0053] Obtain a hollow plate on the detection platform within the time threshold, and set it as the plate to be detected, divide the plate to be detected into i sub-region blocks, i is a natural number greater than zero, obtain the performance feature image of each sub-region block within the time threshold, obtain the number of interference parameters from the performance feature image, and set it as the interference item value, the interference parameters include cracks, bulges, etc., compare and analyze the interference item value with the stored preset interference item value threshold, and set the number of sub-region blocks corresponding to the interference item value greater than the preset interference item value threshold as the defect interference value. It should be noted that the larger the defect interference value, the greater the risk of interference caused by the plate to be detected itself to the subsequent detection, wherein the detection platform is rectangular;

[0054] The midpoint line of the left and right sides of the detection platform is set as the X-axis, the midpoint line of the front and back sides of the detection platform is set as the Y-axis, and the intersection of the X-axis and the Y-axis is set as point O. The area of ​​the area in the corresponding quadrant after the hollow plate is placed is obtained and set as the position evaluation value. The maximum and minimum values ​​of the position evaluation value are obtained, and the difference between the maximum and minimum values ​​of the position evaluation value is set as the offset interference value. It should be noted that the larger the value of the offset interference value, the greater the risk of abnormal detection accuracy.

[0055] Compare and analyze the defect interference value and offset interference value with the preset defect interference value threshold and preset offset interference value threshold that are stored internally:

[0056] If the defect interference value is less than the preset defect interference value threshold, and the offset interference value is less than the preset offset interference value threshold, a qualified signal is generated and sent to the time period risk unit;

[0057] If the defect interference value is greater than or equal to the preset defect interference value threshold, or the offset interference value is greater than or equal to the preset offset interference value threshold, an offset signal is generated, and the offset signal is sent to the execution response unit via the time period risk unit. After receiving the offset signal, the execution response unit immediately displays the preset warning text "hollow plate adjustment" corresponding to the offset signal, so as to adjust the hollow plate according to the information feedback, so as to reduce the influence of the hollow plate itself on the test results, so as to improve the accuracy and credibility of the test results.

[0058] Embodiment 2:

[0059] After receiving the normal signal and the qualified signal, the time period risk unit immediately collects the execution risk data of the test equipment, which includes the actual interference value and the control error value, and performs an operation performance safety supervision evaluation and analysis on the execution risk data to determine whether the operation performance of the test equipment during the test process is normal, so as to ensure the accuracy of the test results. The specific operation performance safety supervision evaluation and analysis process is as follows:

[0060] Obtain the detection period of the board to be detected within the time threshold, divide the detection period into g sub-periods, where g is a natural number greater than zero, obtain the number of deviations of the numerical values ​​corresponding to the actual operating parameters of the test equipment in each sub-period from the set threshold, and set it as the actual deviation value, the actual operating parameters include the downward pressure speed risk value, the operating voltage mean, etc. The downward pressure speed risk value represents the difference between the downward pressure speed characteristic curve and the set downward pressure speed characteristic curve, construct a set A of actual deviation values, obtain the discrete coefficient of set A, and set it as the actual interference value. It should be noted that the larger the numerical value of the actual interference value, the greater the risk of detection operation error of the test equipment in the detection period;

[0061] The total number of instruction switching times of the test equipment in the detection period is obtained, and the response time corresponding to each instruction switching number is obtained. The response time represents the time between the instruction generation time and the instruction execution end time. The response time is compared and analyzed with the stored preset response time threshold. The ratio between the number of instruction switching times corresponding to the response time exceeding the preset response time threshold and the total number of instruction switching times is set as the control error value. It should be noted that the larger the value of the control error value, the greater the risk of detection operation error of the test equipment in the detection period. The actual interference value and the control error value are labeled SG and WT respectively.

[0062] According to the formula The operation performance evaluation coefficient is obtained, where a1 and a2 are preset proportional factor coefficients of the actual interference value and the control error value, respectively. The proportional factor coefficient is used to correct the deviation of various parameters in the formula calculation process, so as to make the calculation result more accurate. A3 is the preset correction factor coefficient. A1, a2 and a3 are all greater than zero. G is the operation performance evaluation coefficient. The operation performance evaluation coefficient G is compared and analyzed with the preset operation performance evaluation coefficient threshold value stored in the internal input:

[0063] If the ratio between the operation performance evaluation coefficient G and the preset operation performance evaluation coefficient threshold is less than 1, a stabilization signal is generated and sent to the information feedback unit;

[0064] If the ratio between the operation performance evaluation coefficient G and the preset operation performance evaluation coefficient threshold is greater than or equal to 1, a management signal is generated and sent to the execution response unit. After receiving the management signal, the execution response unit immediately displays the preset warning text "test facility management" corresponding to the management signal, so as to manage and adjust the test equipment according to the information feedback, so as to reduce the impact of the test equipment on the test results, so as to improve the accuracy of the test results;

[0065] After receiving the stable signal, the information feedback unit immediately collects the information risk data of the test equipment, which includes the information deviation risk value and the external interference value, and performs test information security supervision feedback analysis on the information risk data to determine whether the hollow board test information is safe, so as to ensure the accuracy and credibility of the subsequent analysis results. The specific test information security supervision feedback analysis process is as follows:

[0066] The information deviation risk value of the test equipment in each sub-time period is obtained. The information deviation risk value represents the product of the transmission delay time and the transmission obstacle value after data normalization. The transmission delay time represents the portion of the time between the start of data collection and the data display time that exceeds the preset time. The transmission obstacle value represents the proportion of the line crack length in the transmission length of the transmission line. It should be noted that the larger the value of the information deviation risk value, the greater the risk of information analysis error.

[0067] The external interference value of the test equipment in each sub-time period is obtained. The external interference value represents the product of the number of change values ​​corresponding to the interference influence parameter exceeding the preset threshold and the duration after data normalization. The interference influence parameter includes the electromagnetic interference value, the conduction resistance value, etc. It should be noted that the larger the external interference value, the greater the risk of information analysis error;

[0068] Compare and analyze the information bias risk value and external interference value with the preset information bias risk value threshold and preset external interference value threshold that are stored internally:

[0069] If the information bias risk value is less than the preset information bias risk value threshold, and the external interference value is less than the preset external interference value threshold, a timeliness signal is generated;

[0070] If the information deviation risk value is greater than or equal to the preset information deviation risk value threshold, or the external interference value is greater than or equal to the preset external interference value threshold, a risk signal is generated, and then the number of sub-time periods corresponding to the timeliness signal is obtained, and the number of sub-time periods corresponding to the risk signal is obtained at the same time, and the ratio between the number of sub-time periods corresponding to the risk signal and the number of sub-time periods corresponding to the timeliness signal is set as the information credibility coefficient, and the information credibility coefficient is compared and analyzed with the preset information credibility coefficient threshold stored in the internal input:

[0071] If the ratio between the information credibility coefficient and the preset information credibility coefficient threshold is less than 1, an information credibility signal is generated;

[0072] If the ratio between the information credibility coefficient and the preset information credibility coefficient threshold is greater than or equal to 1, an information failure signal is generated, and the information credibility signal and the information failure signal are sent to the execution response unit. After receiving the information credibility signal and the information failure signal, the execution response unit immediately displays the preset warning texts corresponding to the information credibility signal and the information failure signal, that is, the preset warning text corresponding to the information credibility signal is "information valid", and the preset warning text corresponding to the information failure signal is "information disturbed", so as to manage the test results according to the information feedback situation, so as to improve the validity and credibility of the test results, and at the same time help to adopt the results analyzed by the test equipment;

[0073] In summary, the present invention improves the validity and credibility of the analysis results of the test equipment and reduces the test error risk of the test equipment by analyzing from two perspectives: before the test and during the test. That is, analyzing from two points of information collection before the test and the hollow plate itself helps to reduce error interference before the test and provide data support for subsequent test analysis, that is, performing information error risk supervision and assessment analysis on the error risk data to determine whether the information validity risk of the pressure sensor is too high, so as to provide timely early warning feedback management, so as to manage the pressure sensor according to the information feedback to ensure the validity and reliability of the collected data, and performing self-offset interference supervision operation on the interference data to determine whether the interference effect of the hollow plate itself on the detection is Is it too high, so as to adjust the hollow board in time to reduce the impact of the hollow board on the test results, so as to improve the accuracy and credibility of the test results. Under the normal premise before the test, analysis is conducted from the two perspectives of operation performance and information transmission in the test to reduce the risk of error interference in the test, which is helpful to improve the adoption rate of subsequent results, that is, to conduct operation performance safety supervision assessment analysis on the execution risk data to determine whether the operation performance of the test equipment during the test is normal, so as to reduce the impact of the test equipment on the test results, so as to improve the accuracy of the test results. Test information safety supervision feedback analysis is conducted on the information risk data through information feedback to determine whether the hollow board test information is safe, so as to ensure the accuracy and credibility of the subsequent analysis results.

[0074] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by technicians in this field for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0075] The above formulas are obtained by collecting a large amount of data for software simulation and selecting a formula that is close to the actual value. The coefficients in the formula are set by technical personnel in this field according to actual conditions. The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited to this. Any technical personnel familiar with the technical field within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, make equivalent replacement or change, which should be covered within the protection scope of the present invention.

Claims

1. Based on the plane pressure testing system for hollow board detection, it is characterized by: It includes a test supervision platform, an information management unit, a front-end information unit, an interference assessment unit, a time period risk unit, an information feedback unit, and an execution response unit; When the test supervision platform generates an operation management instruction, the operation management instruction is sent to the information management unit. After receiving the operation management instruction, the information management unit immediately collects the error risk data of the pressure sensor and the interference data of the hollow plate. The error risk data includes the collection deviation value and the information error rate, and the interference data includes the defect interference value and the offset interference value. The error risk data and the interference data are sent to the front-end information unit and the interference evaluation unit respectively. After receiving the error risk data, the front-end information unit immediately performs information error risk supervision evaluation analysis on the error risk data, sends the obtained normal signal to the time period risk unit, and sends the obtained abnormal signal to the execution response unit; After receiving the interference data, the interference assessment unit immediately performs its own deviation interference supervision operation on the interference data, sends the obtained qualified signal to the time period risk unit, and sends the obtained deviation signal to the execution response unit via the time period risk unit; After receiving the normal signal and the qualified signal, the time period risk unit immediately collects the execution risk data of the test equipment, the execution risk data includes the actual interference value and the control error value, and performs an operation performance safety supervision assessment and analysis on the execution risk data, sends the obtained stable signal to the information feedback unit, and sends the obtained management signal to the execution response unit; After receiving the stable signal, the information feedback unit immediately collects the information risk data of the test equipment, which includes the information deviation risk value and the external interference value, and performs test information security supervision feedback analysis on the information risk data, and sends the obtained information credibility signal and information failure signal to the execution response unit; The information error risk supervision assessment and analysis process of the front-end information unit is as follows: Set a monitoring cycle and set it as a time threshold, obtain the position deviation value of each pressure sensor in the detection platform within the time threshold, the position deviation value represents the part of the interval straight-line distance between the pressure sensors that deviates from the set interval straight-line distance, obtain the maximum and minimum values ​​of the position deviation value, and set the difference between the maximum and minimum values ​​of the position deviation value as the acquisition deviation value; The operating value of each pressure sensor in the detection platform within the time threshold is obtained, and the operating value represents the total duration from the time when the pressure sensor starts to be powered on to the time when the power is ended. The proportion of the duration corresponding to the operating temperature of each pressure sensor in the operating value exceeding the preset operating temperature threshold is obtained, and it is set as the error risk value, and the proportion of the number of sensors corresponding to the error risk value greater than the preset error risk value threshold is set as the information error rate; The acquisition deviation value and the information error rate are compared and analyzed with the preset acquisition deviation value threshold and the preset information error rate threshold that are recorded and stored internally: If the acquisition deviation value is less than the preset acquisition deviation value threshold, and the information error rate is less than the preset information error rate threshold, a normal signal is generated; If the collection deviation value is greater than or equal to the preset collection deviation value threshold, or the information error rate is greater than or equal to the preset information error rate threshold, an abnormal signal is generated; The self-offset interference supervision operation process of the interference assessment unit is as follows: The hollow plate on the detection platform within the time threshold is obtained, and it is set as the plate to be detected. The plate to be detected is divided into i sub-region blocks, where i is a natural number greater than zero. The performance feature image of each sub-region block within the time threshold is obtained. The number of interference parameters is obtained from the performance feature image and set as the interference item value. The interference parameters include cracks and bulges. The interference item value is compared and analyzed with the stored preset interference item value threshold, and the number of sub-region blocks corresponding to the interference item value greater than the preset interference item value threshold is set as the defect interference value. The midpoint line of the left and right sides of the detection platform is set as the X-axis, the midpoint line of the front and back sides of the detection platform is set as the Y-axis, the intersection of the X-axis and the Y-axis is set as point O, the area of ​​the area in the corresponding quadrant after the hollow plate is placed is obtained, and it is set as the position evaluation value, the maximum and minimum values ​​of the position evaluation value are obtained, and the difference between the maximum and minimum values ​​of the position evaluation value is set as the offset interference value; The defect interference value and the offset interference value are compared and analyzed with the preset defect interference value threshold and the preset offset interference value threshold that are recorded and stored internally: If the defect interference value is less than the preset defect interference value threshold, and the offset interference value is less than the preset offset interference value threshold, a qualified signal is generated; If the defect interference value is greater than or equal to a preset defect interference value threshold, or the offset interference value is greater than or equal to a preset offset interference value threshold, then generating an offset signal; The safety supervision assessment and analysis process of the operational performance of the risk unit during the period is as follows: S1: Obtain the detection period of the board to be detected within the time threshold, divide the detection period into g sub-periods, where g is a natural number greater than zero, obtain the number of deviations of the values ​​corresponding to the actual operating parameters of the test equipment in each sub-period from the set threshold, and set it as the actual deviation value, the actual operating parameters include the downward pressure speed risk value and the operating voltage mean, the downward pressure speed risk value represents the difference between the downward pressure speed characteristic curve and the set downward pressure speed characteristic curve, construct a set A of actual deviation values, obtain the discrete coefficient of set A, and set it as the actual interference value; S2: Obtain the total number of command switching times of the test device within the detection period, obtain the response time corresponding to each command switching number, the response time represents the time between the command generation time and the command execution end time, compare and analyze the response time with the stored preset response time threshold, and set the ratio between the number of command switching times corresponding to the response time exceeding the preset response time threshold and the total number of command switching times as the control error value, and label the actual interference value and the control error value as SG and WT respectively; S3: Obtain the operation performance evaluation coefficient G according to the formula, and compare and analyze the operation performance evaluation coefficient G with the preset operation performance evaluation coefficient threshold value stored internally: If the ratio between the operation performance evaluation coefficient G and the preset operation performance evaluation coefficient threshold is less than 1, a stable signal is generated; If the ratio between the operation performance evaluation coefficient G and the preset operation performance evaluation coefficient threshold is greater than or equal to 1, a management signal is generated; The test information security supervision feedback analysis process of the information feedback unit is as follows: T1: Obtain the information deviation risk value of the test equipment in each sub-time period. The information deviation risk value represents the product of the transmission delay duration and the transmission obstruction value after data normalization. The transmission delay duration represents the portion of the time from the start of data collection to the data display time that exceeds the preset duration. The transmission obstruction value represents the proportion of the line crack length in the transmission length of the transmission line. T2: Obtain the external interference value of the test equipment in each sub-time period. The external interference value represents the product of the number of change values ​​corresponding to the interference impact parameter exceeding the preset threshold and the duration after data normalization. The interference impact parameter includes the electromagnetic interference value and the conduction resistance value. T3: Compare and analyze the information bias risk value and external interference value with the preset information bias risk value threshold and preset external interference value threshold that are stored internally: If the information bias risk value is less than the preset information bias risk value threshold, and the external interference value is less than the preset external interference value threshold, a timeliness signal is generated; If the information deviation risk value is greater than or equal to the preset information deviation risk value threshold, or the external interference value is greater than or equal to the preset external interference value threshold, a risk signal is generated, and then the number of sub-time periods corresponding to the timeliness signal is obtained, and the number of sub-time periods corresponding to the risk signal is obtained at the same time, and the ratio between the number of sub-time periods corresponding to the risk signal and the number of sub-time periods corresponding to the timeliness signal is set as the information credibility coefficient, and the information credibility coefficient is compared and analyzed with the preset information credibility coefficient threshold stored in the internal input: If the ratio between the information credibility coefficient and the preset information credibility coefficient threshold is less than 1, an information credibility signal is generated; If the ratio between the information credibility coefficient and the preset information credibility coefficient threshold is greater than or equal to 1, an information failure signal is generated.

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