Device and method for processing pressure detection values ​​of concrete box beams

Abstract

A device and method for processing pressure detection values ​​of concrete box girders, belonging to the technical field of pressure detection value processing, comprising: S1, regularly performing accuracy detection and analysis on a pressure sensor used to sample the pressure detection values ​​of a concrete box girder; S2, performing accuracy detection and warning analysis on the pressure sensor used to sample the pressure detection values ​​of a concrete box girder; S3, performing evaluation and analysis on the sampling smoothness of the pressure sensor used to sample the pressure detection values ​​of a concrete box girder: the present invention effectively avoids the defect in the prior art that the method of performing accuracy evaluation on a pressure sensor used to sample the pressure detection values ​​of a concrete box girder based on a dedicated instrument often cannot detect the true accuracy of the pressure sensor.

Description

Technical Field

[0001] The present invention belongs to the technical field of pressure detection value processing, and in particular relates to a device and method for processing pressure detection values ​​of concrete box girders. Background Art

[0002] A concrete box girder is a beam-type component used in bridge structures. Its cross-section is rectangular or square, forming a solid box-like structure, hence the name. Concrete box girders offer advantages such as light weight, high strength, and high rigidity, making them widely used in highway and railway bridge construction.

[0003] In practical applications, the current detection of pressure of concrete box girders often uses the existing technical solution mentioned in the patent publication number "CN219977962U", which includes a pressure sensor provided at the top of the top pressure cylinder. The pressure sensor and the display screen are connected to the controller. The pressure sensor is used to sample the pressure value of the bottom of the concrete box girder or the pressure value of the side of the concrete box girder under the drive of the top pressure cylinder. The pressure value of the bottom of the concrete box girder or the pressure value of the side of the concrete box girder is the pressure detection value of the concrete box girder. The pressure sensor is also used to transmit the sampled pressure detection value of the concrete box girder to the controller. The controller is used to transmit the pressure detection value of the concrete box girder transmitted by the sample after processing to the display screen for display, so that workers can monitor the pressure detection value of the concrete box girder.

[0004] On the other hand, pressure sensors are crucial for pressure detection of concrete box girders, because during the sampling and transmission of pressure detection values, the pressure sensors are often disturbed by the field strength of external electromagnetic waves and the unstable condition of the pressure sensors at the top of the top pressure cylinder, which makes the pressure detection values ​​of the concrete box girders sampled and transmitted to the controller inaccurate, that is, the accuracy of the pressure sensors is insufficient. Therefore, it is very necessary to evaluate the accuracy of the pressure sensors (that is, the accuracy of the pressure detection values ​​of the concrete box girders sampled and transmitted to the controller). However, the current method of performing accuracy evaluation on pressure sensors used to sample pressure detection values ​​of concrete box girders based on special instruments often cannot detect the true accuracy of the pressure sensors. Summary of the Invention

[0005] In order to solve the defects in the prior art, the present invention proposes a device and method for processing the pressure detection value of a concrete box girder. The present invention effectively avoids the defect in the prior art that the method of performing accuracy evaluation on the pressure sensor used to sample the pressure detection value of the concrete box girder based on a special instrument often cannot detect the true accuracy of the pressure sensor.

[0006] The present invention utilizes the following technical solutions.

[0007] A method for processing pressure detection values ​​of a concrete box girder, comprising:

[0008] The pressure sensor samples the pressure detection value of the concrete box girder, and the pressure sensor also transmits the sampled pressure detection value of the concrete box girder to the controller. The controller processes the pressure detection value of the concrete box girder sampled at the detection time point, and then transmits the processed pressure detection value of the concrete box girder to the display screen for display; the electromagnetic interference meter is used to sample the field strength value of the external electromagnetic wave and transmit it to the controller;

[0009] The controller processes the pressure detection value of the concrete box girder sampled at the detection time, including:

[0010] S1, regularly performing accuracy detection and analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder;

[0011] S2, performing accuracy detection and warning analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder;

[0012] S3: Perform evaluation and analysis on the sampling smoothness of the pressure sensor used to sample the pressure detection value of the concrete box girder.

[0013] Furthermore, S1 specifically includes: defining a pressure sensor for sampling a pressure detection value of a concrete box beam as a detection object, and performing multiple detection analyses on the detection object.

[0014] Furthermore, S1 specifically includes: each detection and analysis process contains multiple detection time points, and the pressure detection value of the concrete box girder sampled at the detection time point and the previous timing period is filtered by the Wiener filter to obtain the processed pressure detection value of the concrete box girder. In addition, the pressure detection value sampled at the detection time point is filtered by the Wiener filter to obtain the filtered pressure detection value and defined as the pressure test value.

[0015] Furthermore, S1 specifically includes: the pressure test value at the detection time point minus the pressure test value of the concrete box girder sampled at the detection time point is defined as , and put The detection deviation at the detection point is defined as the detection deviation. At the detection point, the field strength value of the external electromagnetic wave sampled and transmitted during the timing period before the detection point is obtained through the electromagnetic interference measuring instrument. The pre-defined interference field strength upper limit value and detection deviation upper limit value are read through the information table. The field strength value of the external electromagnetic wave sampled and transmitted during the timing period before the detection point and that is lower than the interference field strength upper limit value is defined as the interference value. The ratio of the number of interference values ​​in the field strength value divided by the total number of field strength values ​​of the external electromagnetic wave sampled and transmitted during the timing period before the detection point is defined as the interference factor of the field strength value. The lowest amount of the interference factor at the detection point in the detection analysis process where the detection deviation is not higher than the detection deviation upper limit value is defined as the interference limit amount of the detection analysis process.

[0016] Furthermore, S1 specifically includes: the interference limit quantity of the entire detection and analysis process forms a boundary cluster, and numerical sorting processing is performed on the boundary cluster: the standard deviation of all values ​​in the boundary cluster is obtained and the standard deviation is used as the aggregation factor, and the pre-defined aggregation upper limit value is obtained through the information table, and the aggregation factor and the aggregation upper limit value are compared: if the aggregation factor is lower than the aggregation upper limit value, it is determined that the numerical sorting processing is completed, and the lowest value in the boundary cluster is defined as the interference limit quantity of the detection object; if the aggregation factor is not lower than the aggregation upper limit value, the highest value and the lowest value in the boundary cluster are removed, and then the aggregation factor of the boundary cluster is calculated again. Similarly, until the aggregation factor is lower than the aggregation upper limit value; obtain the pre-defined interference limit upper limit value through the information table, and compare the interference limit amount of the detection object with the interference limit upper limit value: if the interference limit amount is lower than the interference limit upper limit value, it is determined that the accuracy detection and resolution of the detection object meets the standard; if the interference limit amount is not lower than the interference limit upper limit value, it is determined that the accuracy detection and resolution of the detection object does not meet the standard, and a message that the accuracy of the pressure sensor does not meet the standard is constructed and the message that the accuracy of the pressure sensor does not meet the standard is transmitted to the display screen through the controller for display; the interference limit amount of the detection object with all the accuracy detection and resolution meeting the standard is transmitted to the information table through the controller for storage.

[0017] Furthermore, S2 specifically includes: after the accuracy detection and analysis of the detection object meets the standard and the sampling pressure detection value work is performed, the detection object is defined as a detection object, and multiple detection time points are set during the detection object's execution of the sampling pressure detection value work, and the field strength value of the external electromagnetic wave sampled and transmitted at the detection time point and the previous timing period is obtained through the electromagnetic interference measuring instrument, and the field strength value of the external electromagnetic wave sampled and transmitted is defined as the detection field strength value.

[0018] Furthermore, S2 specifically also includes: defining the lowest amount of the interference factor at the detection point when the detection deviation in the detection analysis process is not higher than the detection deviation upper limit value as the interference limit amount of the detection analysis process; reading the interference limit amount of the detection object through the information table, and comparing the interference factor and the interference limit amount: if the interference factor is lower than the interference limit amount, constructing an accuracy warning message and transmitting the accuracy warning message to the display screen via the controller for display; if the interference factor is not lower than the interference limit amount, determining that the interference degree of the field strength value meets the detection accuracy requirement of the detection object.

[0019] Furthermore, S3 specifically includes: obtaining the pressure detection value of the concrete box beam in real time during the sampling pressure detection value of the detection object and defining it as the pressure detection value, forming a detection time interval by the interval between a pair of adjacent detection time points defined in advance, and obtaining the decrement value at the end time point of the detection time interval. , spacing value and fluctuation value , decrement value The method of obtaining the value is as follows: define the highest and lowest pressure detection values ​​in the detection time interval as peak value and valley value respectively, and define the value obtained by subtracting the valley value from the peak value as the decrement value. ; Spacing value It is the interval between the peak and valley values ​​at the corresponding time points in the detection time interval, the fluctuation value The method for obtaining the value is as follows: define the average of the pressure detection values ​​in the detection time interval as the pressure mean, form the duration of the pressure detection value exceeding the pressure mean as an increasing sub-interval, and form the duration of the pressure detection value falling below the pressure mean as a decreasing sub-interval, and define the sum of the number of increasing sub-intervals and the number of decreasing sub-intervals in the detection time interval as the fluctuation value. .

[0020] Furthermore, S3 specifically includes: via equation Obtain the stationary factor of the detection object in the detection time interval , here 、 and are all predefined ratio factors, and , obtain the pre-defined stable upper limit value through the information table , the stationary factor of the detection interval and stable upper limit Execution comparison: If the stationary factor Below the upper limit of stability , it is determined that the sampling stability of the detection object in the detection time interval meets the requirements; if the stability factor Not less than the upper limit of stability , it is determined that the sampling stability of the detection object in the detection time interval does not meet the requirements, a stability failure message is constructed and the stability failure message is transmitted to the display screen through the controller for display.

[0021] A device for processing pressure detection values ​​of a concrete box girder, comprising:

[0022] The pressure sensor, electromagnetic interference measuring instrument, pressure sensor and display screen provided at the top of the top pressure cylinder are all connected to the controller. The pressure sensor is used to sample the pressure detection value of the concrete box girder. The pressure sensor is also used to transmit the sampled pressure detection value of the concrete box girder to the controller. The controller is used to process the pressure detection value of the concrete box girder sampled at the detection time point, and then transmit the processed pressure detection value of the concrete box girder to the display screen for display; the electromagnetic interference measuring instrument is used to sample the field strength value of the external electromagnetic wave and transmit it to the controller;

[0023] Also included on the controller:

[0024] Accuracy detection unit, accuracy warning unit, stability evaluation unit and information table;

[0025] The accuracy detection unit is used to regularly perform accuracy detection analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder;

[0026] The accuracy warning unit is used to perform accuracy detection warning analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder;

[0027] The stability evaluation unit is used to perform evaluation and analysis on the sampling stability of the pressure sensor used to sample the pressure detection value of the concrete box girder.

[0028] The beneficial effects of the present invention are that, compared with the prior art, the technical effects of the present invention include:

[0029] The accuracy detection unit can perform accuracy detection analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder. By virtue of the pressure sensor's certain limit requirements on the field strength value of the external electromagnetic wave, that is, the pressure sensor is not suitable for performing sampling work under the condition of excessively high field strength value of the external electromagnetic wave, the detection deviation and interference are jointly verified to perform a comprehensive analysis to obtain the interference threshold value under the detection accuracy of the detection object, and provide numerical support for the accuracy warning analysis; the accuracy warning unit can perform accuracy detection warning analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder, and determine whether the interference factor is detected at regular intervals. In accordance with the accuracy assurance range of the detection object, the measurement accuracy of the detection object is closely related to the field strength value of the external electromagnetic wave. Under the condition of regular accuracy detection and analysis, the interference detection of the pressure value can ensure the sampling accuracy of the detection object; through the stability evaluation unit, the operation stability of the pressure sensor used for sampling the pressure detection value of the concrete box girder can be evaluated and analyzed, the sampling value of the detection object is processed to obtain multiple sampling stability parameters, and the multiple sampling stability parameters are comprehensively analyzed and calculated to obtain the stability factor. According to the stability factor, the sampling stability amplitude of the detection object is fed back, so that feedback and warnings can be given in real time when the stability does not meet the standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a flow chart of the method for processing the pressure detection value of the concrete box girder described in the present invention;

[0031] Figure 2 It is a partial structural diagram of the device for processing pressure detection values ​​of concrete box beams according to the present invention. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely express the technical solutions of the present invention. The embodiments expressed in this application are only some embodiments of the present invention, not all embodiments. Based on the spirit of the present invention, other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0033] like Figure 1 As shown, the method for processing the pressure detection value of a concrete box girder according to the present invention includes:

[0034] The pressure sensor samples the pressure value at the bottom of the concrete box girder or the pressure value at the side of the concrete box girder under the drive of the top pressure cylinder. The pressure value at the bottom of the concrete box girder or the pressure value at the side of the concrete box girder is the pressure detection value of the concrete box girder. The pressure sensor also transmits the sampled pressure detection value of the concrete box girder to the controller. The controller processes the pressure detection value of the concrete box girder sampled at the detection time point, and then transmits the processed pressure detection value of the concrete box girder to the display screen for display, so that workers can monitor the pressure detection value of the concrete box girder. The electromagnetic interference meter is used to sample the field strength value of the external electromagnetic wave and transmit it to the controller. The sampling time points of the electromagnetic interference meter and the pressure sensor are the same.

[0035] The controller processes the pressure detection value of the concrete box girder sampled at the detection time, including:

[0036] S1, regularly performing accuracy detection and analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder;

[0037] S2, performing accuracy detection and warning analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder;

[0038] S3: Perform evaluation and analysis on the sampling smoothness of the pressure sensor used to sample the pressure detection value of the concrete box girder.

[0039] In a preferred but non-limiting embodiment of the present invention, S1 specifically includes: defining a pressure sensor for sampling a pressure detection value of a concrete box girder as a detection object, and performing multiple detection analyses on the detection object.

[0040] In a preferred but non-restrictive embodiment of the present invention, S1 specifically also includes: each detection and analysis process contains multiple detection time points (the detection time point is a time point after a timing duration of 1 second, 2 seconds or 3 seconds, etc., the sampling speed of the pressure sensor can be once per millisecond, and the detection time point is also a sampling time point of the pressure sensor), the detection object is installed at the top of the top pressure cylinder, and the pressure value of the bottom of the concrete box girder or the pressure value of the side of the concrete box girder is sampled through the detection object and defined as the pressure detection value of the concrete box girder and transmitted to the controller, the pressure detection value of the concrete box girder sampled and transmitted during the detection time point and the previous timing duration is filtered by the Wiener filter to obtain the processed pressure detection value of the concrete box girder, and the pressure detection value sampled at the detection time point is filtered by the Wiener filter to obtain the filtered pressure detection value and defined as the pressure test value.

[0041] In a preferred but non-limiting embodiment of the present invention, S1 specifically further includes: subtracting the pressure test value of the concrete box girder sampled at the detection time from the pressure test value at the detection time to obtain a value defined as , and put The detection deviation at the detection point is defined as the detection deviation. At the detection point, the electromagnetic interference measuring instrument is used to obtain the field strength value of the external electromagnetic wave sampled and transmitted during the detection point and the previous timing period. The interference field strength upper limit value (often exceeding the upper limit value will be detrimental to the sampling work of the pressure sensor) and the detection deviation upper limit value (often exceeding the upper limit value means that the sampling deviation of the pressure sensor is very high) defined in advance according to specific requirements are read through the information table. The field strength value of the external electromagnetic wave sampled and transmitted during the detection point and the previous timing period that is lower than the interference field strength upper limit value is defined as the interference value. The ratio of the number of interference values ​​in the field strength value divided by the total number of field strength values ​​of the external electromagnetic wave sampled and transmitted during the detection point and the previous timing period is defined as the interference factor of the field strength value. The lowest amount of the interference factor at the detection point in the detection analysis process where the detection deviation is not higher than the detection deviation upper limit value is defined as the interference limit amount of the detection analysis process.

[0042] In a preferred but non-restrictive embodiment of the present invention, S1 specifically also includes: the interference limit quantity of the entire detection and analysis process forms a boundary cluster, and numerical sorting is performed on the boundary cluster: the standard deviation of all values ​​in the boundary cluster is obtained and the standard deviation is used as an aggregation factor, and the aggregation upper limit value pre-defined in accordance with specific requirements is obtained through the information table, and the aggregation factor and the aggregation upper limit value are compared: if the aggregation factor is lower than the aggregation upper limit value, it is determined that the numerical sorting is completed, and the lowest value in the boundary cluster is defined as the interference limit quantity of the detection object; the interference limit quantity of the detection object is refreshed regularly; if the aggregation factor is not lower than the aggregation upper limit value, the highest value and the lowest value in the boundary cluster are removed, and then the aggregation factor of the boundary cluster is calculated again, and similarly until the aggregation factor is lower than the aggregation upper limit value; the interference limit upper limit value pre-defined in accordance with specific requirements is obtained through the information table, and the detection object is The interference limit and the interference limit upper limit are compared: if the interference limit is lower than the interference limit upper limit, it is determined that the accuracy detection analysis of the detection object meets the standard; if the interference limit is not lower than the interference limit upper limit, it is determined that the accuracy detection analysis of the detection object does not meet the standard, and a message that the accuracy of the pressure sensor does not meet the standard is constructed and the message that the accuracy of the pressure sensor does not meet the standard is transmitted to the display screen through the controller for display; the interference limit of the detection object with all accuracy detection and analysis meeting the standard is transmitted to the information table through the controller for storage; relying on the fact that the pressure sensor has some limit requirements for the field strength value of the external electromagnetic wave, that is, the pressure sensor is not suitable for performing sampling work under the condition that the field strength value of the external electromagnetic wave is too high, the detection deviation and field strength interference are jointly verified to perform a comprehensive analysis to obtain the interference critical value under the detection accuracy of the detection object to provide numerical support for the accuracy warning analysis.

[0043] In a preferred but non-restrictive embodiment of the present invention, S2 specifically includes: after the accuracy detection and analysis of the detection object meets the standard and the sampling pressure detection value work is performed, the detection object is defined as a detection object, and multiple detection time points are set during the detection object's execution of the sampling pressure detection value work (the detection time point is a timing point, such as the time point after each timing duration of 1 second, 2 seconds or 3 seconds, the sampling speed of the pressure sensor can be once per millisecond, and the detection time point is also a sampling time point of a pressure sensor and an electromagnetic interference measuring instrument), and the electromagnetic interference measuring instrument obtains the field strength value of the external electromagnetic wave sampled and transmitted during the detection time point and the previous timing duration, and defines the field strength value of the external electromagnetic wave sampled and transmitted as the detection field strength value.

[0044] In a preferred but non-restrictive embodiment of the present invention, S2 specifically also includes: defining the lowest amount of the interference factor at the detection time point when the detection deviation in the detection and analysis process is not higher than the detection deviation upper limit value as the interference limit of the detection and analysis process; reading the interference limit of the detection object through the information table, and comparing the interference factor and the interference limit: if the interference factor is lower than the interference limit, it is determined that the field intensity of the external electromagnetic wave during the sampling pressure detection value working period forms an interference effect that does not meet the detection accuracy requirements of the detection object, constructs an accuracy warning message and transmits the accuracy warning message to the display screen via the controller for display; if the interference factor is not lower than the interference limit, it is determined that the interference degree of the field strength value meets the detection accuracy requirements of the detection object; determines whether it meets the accuracy assurance interval of the detection object by regularly detecting the interference factor of the field strength value, the measurement accuracy of the detection object is closely related to the field strength value of the external electromagnetic wave, and under the condition of regularly executing accuracy detection and analysis, executing interference degree detection of the field strength value can ensure the sampling accuracy of the detection object.

[0045] In a preferred but non-limiting embodiment of the present invention, S3 specifically includes: obtaining the pressure detection value of the concrete box beam in real time during the sampling pressure detection value of the detection object and defining it as the pressure detection value, forming a detection time interval (the size of the detection time interval can be determined according to specific requirements) by the interval between a pair of adjacent detection time points defined in advance, and obtaining the decrement value at the end point of the detection time interval. , spacing value and fluctuation value , decrement value The method of obtaining the value is as follows: define the highest and lowest pressure detection values ​​in the detection time interval as peak value and valley value respectively, and define the value obtained by subtracting the valley value from the peak value as the decrement value. ; Spacing value It is the interval between the peak and valley values ​​at the corresponding time points in the detection time interval, the fluctuation value The method for obtaining the value is as follows: define the average of the pressure detection values ​​in the detection time interval as the pressure mean, form the duration of the pressure detection value exceeding the pressure mean as an increasing sub-interval, and form the duration of the pressure detection value falling below the pressure mean as a decreasing sub-interval, and define the sum of the number of increasing sub-intervals and the number of decreasing sub-intervals in the detection time interval as the fluctuation value. .

[0046] In a preferred but non-limiting embodiment of the present invention, S3 specifically further comprises: via equation Obtain the stationary factor of the detection object in the detection time interval , here 、 and are all predefined ratio factors, and , obtain the stable upper limit value defined in advance according to specific requirements through the information table , the stationary factor of the detection interval and stable upper limit Execution comparison: If the stationary factor Below the upper limit of stability , it is determined that the sampling stability of the detection object in the detection time interval (the stability is the stability of the pressure sensor installed at the top of the top pressure cylinder) meets the requirements; if the stability factor Not less than the upper limit of stability , it is determined that the sampling stability of the detection object in the detection time interval does not meet the requirements, a stability non-standard message is constructed and the stability non-standard message is transmitted to the display screen through the controller for display; the sampling value of the detection object is processed to obtain multiple sampling stability parameters, and the multiple sampling stability parameters are comprehensively analyzed and calculated to obtain the stability factor, and the sampling stability amplitude of the detection object is fed back according to the stability factor, so as to immediately perform feedback and warning when the stability does not meet the requirements.

[0047] like Figure 2 As shown, the device for processing pressure detection values ​​of a concrete box girder according to the present invention includes:

[0048] A pressure sensor, an electromagnetic interference measuring instrument, a pressure sensor and a display screen are all connected to the controller. The electromagnetic interference measuring instrument can be arranged next to the controller. The pressure sensor is used to sample the pressure value of the bottom of the concrete box girder or the pressure value of the side of the concrete box girder under the drive of the top pressure cylinder. The pressure value of the bottom of the concrete box girder or the pressure value of the side of the concrete box girder is the pressure detection value of the concrete box girder. The pressure sensor is also used to transmit the sampled pressure detection value of the concrete box girder to the controller. The controller is used to process the sampled pressure detection value of the concrete box girder, and then transmit the processed pressure detection value of the concrete box girder to the display screen for display, so that workers can monitor the pressure detection value of the concrete box girder; the electromagnetic interference measuring instrument is used to sample the field strength value of the external electromagnetic wave and transmit it to the controller. The sampling time points of the electromagnetic interference measuring instrument and the pressure sensor are the same;

[0049] Also included on the controller:

[0050] Accuracy detection unit, accuracy warning unit, stability evaluation unit and information table;

[0051] Pressure sensors have certain limit requirements for the field strength of external electromagnetic waves, that is, pressure sensors are not suitable for performing sampling work under conditions where the field strength of external electromagnetic waves is too high. On the other hand, the probability of sudden failure of pressure sensors is not high, and the overall sampling accuracy is closely related to the field strength of external electromagnetic waves and the stability of the installation at the top of the top pressure cylinder. Therefore, the current accuracy evaluation method is not suitable for pressure sensors.

[0052] The accuracy detection unit is used to regularly perform accuracy detection analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder;

[0053] The accuracy warning unit is used to perform accuracy detection warning analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder;

[0054] The stability evaluation unit is used to evaluate and analyze the sampling stability of the pressure sensor used to sample the concrete box girder pressure test value (this stability refers to the stability of the pressure sensor's installation at the top of the top pressure cylinder). The controller can be a single-chip microcomputer or a PLC.

[0055] The beneficial effects of the present invention are that, compared with the prior art, the technical effects of the present invention include:

[0056] The accuracy detection unit can perform accuracy detection analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder. By virtue of the pressure sensor's certain limit requirements on the field strength value of the external electromagnetic wave, that is, the pressure sensor is not suitable for performing sampling work under the condition of excessively high field strength value of the external electromagnetic wave, the detection deviation and interference are jointly verified to perform a comprehensive analysis to obtain the interference threshold value under the detection accuracy of the detection object, and provide numerical support for the accuracy warning analysis; the accuracy warning unit can perform accuracy detection warning analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder, and determine whether the interference factor is detected at regular intervals. In accordance with the accuracy assurance range of the detection object, the measurement accuracy of the detection object is closely related to the field strength value of the external electromagnetic wave. Under the condition of regular accuracy detection and analysis, the interference detection of the pressure value can ensure the sampling accuracy of the detection object; through the stability evaluation unit, the operation stability of the pressure sensor used for sampling the pressure detection value of the concrete box girder can be evaluated and analyzed, the sampling value of the detection object is processed to obtain multiple sampling stability parameters, and the multiple sampling stability parameters are comprehensively analyzed and calculated to obtain the stability factor. According to the stability factor, the sampling stability amplitude of the detection object is fed back, so that feedback and warnings can be given in real time when the stability does not meet the standard.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the specific implementation methods of the present invention can still be modified or replaced with equivalents, and any modifications or equivalent replacements that do not deviate from the spirit and scope of the present invention should be covered within the protection space of the claims of the present invention.

Claims

1. A method for processing pressure detection values ​​of concrete box beams, characterized in that: include: The pressure sensor samples the pressure detection value of the concrete box girder, and the pressure sensor also transmits the sampled pressure detection value of the concrete box girder to the controller. The controller processes the pressure detection value of the concrete box girder sampled at the detection time point, and then transmits the processed pressure detection value of the concrete box girder to the display screen for display; the electromagnetic interference meter is used to sample the field strength value of the external electromagnetic wave and transmit it to the controller; The controller processes the pressure detection value of the concrete box girder sampled at the detection time, including: S1, regularly performing accuracy detection and analysis on a pressure sensor used to sample pressure detection values ​​of a concrete box girder, which includes defining the pressure sensor used to sample pressure detection values ​​of the concrete box girder as a detection object and performing multiple detection and analysis on the detection object; S2, performing accuracy detection warning analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder, and defining the detection object as the detection object after the accuracy detection analysis meets the standard and the pressure detection value sampling work is performed; S3: Performing evaluation and analysis on the sampling stability of the pressure sensor used to sample the pressure detection value of the concrete box girder; S1 specifically includes: the pressure test value at the detection point minus the pressure test value of the concrete box girder sampled at the detection point is defined as , and put The detection deviation at the detection time point is defined as the detection deviation. At the detection time point, the field strength value of the external electromagnetic wave sampled and transmitted during the detection time point and the previous timing duration is obtained through the electromagnetic interference measuring instrument. The defined interference field strength upper limit value and the detection deviation upper limit value are read through the information table. The field strength value of the external electromagnetic wave sampled and transmitted during the detection time point and the previous timing duration that is lower than the interference field strength upper limit value is defined as the interference value. The ratio of the number of interference values ​​in the field strength value divided by the total number of field strength values ​​of the external electromagnetic wave sampled and transmitted during the detection time point and the previous timing duration is defined as the interference factor of the field strength value. The lowest amount of the interference factor at the detection time point at which the detection deviation in the detection and analysis process is not higher than the detection deviation upper limit value is defined as the interference limit amount of the detection and analysis process. S1 specifically includes: the interference limit quantity of the entire detection and analysis process forms a boundary cluster, and performs numerical sorting on the boundary cluster: obtains the standard deviation of all values ​​in the boundary cluster and uses the standard deviation as the aggregation factor, obtains the defined aggregation upper limit value through the information table, and compares the aggregation factor and the aggregation upper limit value: if the aggregation factor is lower than the aggregation upper limit value, it is determined that the numerical sorting is completed, and the lowest value in the boundary cluster is defined as the interference limit of the detection object; if the aggregation factor is not lower than the aggregation upper limit value, the highest value and the lowest value in the boundary cluster are removed, and then the aggregation factor of the boundary cluster is calculated again, and the same is true. to the aggregation factor being lower than the aggregation upper limit; obtaining the defined interference limit upper limit through the information table, and comparing the interference limit amount of the detection object with the interference limit upper limit: if the interference limit amount is lower than the interference limit upper limit, determining that the accuracy detection and analysis of the detection object meets the standard; if the interference limit amount is not lower than the interference limit upper limit, determining that the accuracy detection and analysis of the detection object does not meet the standard, constructing a message that the accuracy of the pressure sensor does not meet the standard and transmitting the message that the accuracy of the pressure sensor does not meet the standard to the display screen via the controller for display; transmitting the interference limit amount of the detection object for which the overall accuracy detection and analysis meets the standard to the information table via the controller for storage; S2 specifically includes: defining the lowest amount of the interference factor at the detection time point when the detection deviation in the detection and analysis process is not higher than the detection deviation upper limit as the interference limit of the detection and analysis process; reading the interference limit of the detection object through the information table, and comparing the interference factor with the interference limit: if the interference factor is lower than the interference limit, generating an accuracy warning message and transmitting the accuracy warning message to the display screen via the controller for display; if the interference factor is not lower than the interference limit, determining that the interference level of the field strength value meets the detection accuracy requirement of the detection object; S3 specifically also includes: Obtain the stationary factor of the detection object in the detection time interval , here 、 and is a defined ratio factor, and , obtain the defined stable upper limit value through the information table , the stationary factor of the detection interval and stable upper limit Execution comparison: If the stationary factor Below the upper limit of stability , it is determined that the sampling stability of the detection object in the detection time interval meets the requirements; if the stability factor Not less than the upper limit of stability , it is determined that the sampling stability of the detection object in the detection time interval does not meet the requirements, a stability failure message is constructed and the stability failure message is transmitted to the display screen through the controller for display. is the decrement value, is the fluctuation value, is the spacing value.

2. The method for processing pressure detection values ​​of concrete box beams according to claim 1, characterized in that: S1 specifically also includes: each detection and analysis process contains multiple detection time points, and the pressure detection value of the concrete box girder sampled at the detection time point and the previous timing period is filtered by the Wiener filter to obtain the pressure detection value of the processed concrete box girder. In addition, the pressure detection value sampled at the detection time point is filtered by the Wiener filter to obtain the filtered pressure detection value and defined as the pressure test value.

3. The method for processing pressure detection values ​​of a concrete box girder according to claim 2, characterized in that: S2 specifically includes: setting multiple detection time points during the detection object's execution of sampling pressure detection value work, obtaining the field strength value of the external electromagnetic wave sampled and transmitted during the detection time point and the previous timing period through the electromagnetic interference measuring instrument, and defining the field strength value of the external electromagnetic wave sampled and transmitted as the detection field strength value.

4. The method for processing pressure detection values ​​of a concrete box girder according to claim 3 is characterized in that: S3 specifically includes: obtaining the pressure detection value of the concrete box beam in real time during the sampling pressure detection value of the detection object and defining it as the pressure detection value; forming a detection time interval by defining the interval between a pair of adjacent detection time points; obtaining the decrement value at the end time point of the detection time interval; , spacing value and fluctuation value , decrement value The method of obtaining the value is as follows: define the highest and lowest pressure detection values ​​in the detection time interval as peak value and valley value respectively, and define the value obtained by subtracting the valley value from the peak value as the decrement value. ; Spacing value It is the interval between the peak and valley values ​​at the corresponding time points in the detection time interval, the fluctuation value The method for obtaining the value is as follows: define the average of the pressure detection values ​​in the detection time interval as the pressure mean, form the duration of the pressure detection value exceeding the pressure mean as an increasing sub-interval, and form the duration of the pressure detection value falling below the pressure mean as a decreasing sub-interval, and define the sum of the number of increasing sub-intervals and the number of decreasing sub-intervals in the detection time interval as the fluctuation value. .

5. A device for processing pressure detection values ​​of a concrete box girder used in the processing method according to any one of claims 1 to 4, characterized in that: include: The pressure sensor, electromagnetic interference measuring instrument, pressure sensor and display screen provided at the top of the top pressure cylinder are all connected to the controller. The pressure sensor is used to sample the pressure detection value of the concrete box girder. The pressure sensor is also used to transmit the sampled pressure detection value of the concrete box girder to the controller. The controller is used to process the pressure detection value of the concrete box girder sampled at the detection time point, and then transmit the processed pressure detection value of the concrete box girder to the display screen for display. The electromagnetic interference measuring instrument is used to sample the field strength value of external electromagnetic waves and transmit it to the controller; Also included on the controller: Accuracy detection unit, accuracy warning unit, stability evaluation unit and information table; The accuracy detection unit is used to regularly perform accuracy detection analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder; The accuracy warning unit is used to perform accuracy detection warning analysis on the pressure sensor used to sample the pressure detection value of the concrete box girder; The stability evaluation unit is used to perform evaluation and analysis on the sampling stability of the pressure sensor used to sample the pressure detection value of the concrete box girder.

Images