Monitoring and early warning system and method for bridge pier column

Abstract

The invention relates to the technical field of bridge pier column monitoring and early warning, and discloses a monitoring and early warning system and method for a bridge pier column, and the system comprises a sensor assembly which is disposed on a to-be-monitored bridge pier column; the acquisition module is used for acquiring real-time information of the bridge pier column; the pier column evaluation module is used for scoring the bridge pier column according to the crack information to obtain a structure score, and adjusting the structure score according to the crack change information; the pier column evaluation module is further used for scoring the bridge pier column according to the vibration information and the settlement information to obtain a stability score, and adjusting the stability score according to the settlement change information; and the comprehensive early warning module is used for obtaining a comprehensive score according to the structure score and the stability score, and performing graded early warning on the bridge pier column according to the comprehensive score. According to the invention, comprehensive monitoring of the state of the bridge pier column is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge pier monitoring and early warning, and in particular to a monitoring and early warning system and method for bridge piers. Background Art

[0002] With the rapid development of transportation, bridges, as one of the important infrastructures, are directly related to the safety of life and property of the public. As key structural components that support the weight of bridges and bear external loads, bridge piers are often affected by factors such as traffic loads, environmental conditions, and geological changes, and are prone to cracks, settlement, vibration, and other problems. If these problems are not discovered and repaired in time, they may cause serious damage to bridge piers or even structural damage, bringing unpredictable safety risks. Therefore, real-time monitoring and early warning of bridge piers are crucial.

[0003] At present, the monitoring of bridge piers mainly relies on manual inspections and traditional detection methods. However, manual inspections are limited by frequency, accuracy and personnel capabilities, making it difficult to achieve comprehensive, real-time and continuous monitoring of the status of bridge piers. Traditional detection methods can often only rely on certain static parameters, such as crack detection and settlement measurement. This single detection method cannot fully reflect the health status of bridge piers and is prone to overlooking some dynamic problems, such as abnormal vibration, which leads to the failure to expose safety hazards in a timely manner.

[0004] Therefore, it is necessary to provide a monitoring and early warning system and method for bridge piers to solve the problem of incomplete monitoring of bridge piers in the prior art. Summary of the invention

[0005] In view of this, the present invention proposes a monitoring and early warning system and method for bridge piers, aiming to solve the problem of incomplete monitoring of bridge piers in the prior art.

[0006] On the one hand, the present invention provides a monitoring and early warning system for bridge piers, comprising:

[0007] A sensor assembly is arranged on the bridge pier to be monitored, wherein the sensor assembly includes a crack sensor, a vibration sensor and a settlement monitoring device;

[0008] A collection module, used to collect real-time information of the bridge pier, wherein the real-time information includes crack information, vibration information and settlement information;

[0009] A pier evaluation module is used to score the bridge pier according to the crack information to obtain a structural score, and to determine whether to adjust the structural score according to the crack change information. If it is determined that adjustment is required, the structural score is adjusted according to the crack change information;

[0010] The pier evaluation module is also used to score the bridge pier according to the vibration information and the settlement information to obtain a stability score, and to determine whether to adjust the stability score according to the settlement change information; if it is determined to be adjusted, the stability score is adjusted according to the settlement change information;

[0011] The comprehensive early warning module is used to obtain a comprehensive score according to the structural score and the stability score, and to perform graded early warning on the bridge pier according to the comprehensive score.

[0012] Furthermore, the pier column evaluation module is used to score the bridge pier column according to the crack information to obtain a structural score, including:

[0013] The crack information includes crack length, crack width, crack depth and crack quantity;

[0014] Set the structure score full score S1, and calculate the structure score by the following formula:

[0015] Sj1=a*S1+b*S1+c*S1+d*S1;

[0016] In the above formula, Sj1 represents the structural score, S1 represents the full score of the structural score, a represents the influence coefficient of crack length, b represents the influence coefficient of crack width, c represents the influence coefficient of crack depth, and d represents the influence coefficient of crack number; among them, the value ranges of a, b, c and d are all [0,0.25].

[0017] Furthermore, the pier column evaluation module is used to determine whether to adjust the structure score according to the crack change information, including:

[0018] Collecting crack change information within a unit time, wherein the crack change information includes length change, width change, depth change and quantity change;

[0019] Set the maximum length change, width change, depth change and number change of cracks per unit time;

[0020] If the length change, width change, depth change and quantity change are all less than their corresponding maximum values, it is determined that the structure score will not be adjusted;

[0021] Otherwise, the structural score is adjusted according to the crack change information.

[0022] Furthermore, the pier column evaluation module is used to adjust the structural score according to the crack change information if it is determined that adjustment is needed, including:

[0023] Respectively calculating the absolute values ​​of the differences between the crack change information and its corresponding maximum length change, maximum width change, maximum depth change and maximum number change: the absolute value of the length difference, the absolute value of the width difference, the absolute value of the depth difference and the absolute value of the number difference;

[0024] The structural score was adjusted by the following formula:

[0025] Sj2=Sj1*(1-△L / Lmax-△K / Kmax-△S / Smax-△N / Nmax);

[0026] In the above formula, Sj2 represents the adjusted structural score, Sj1 represents the structural score, △L represents the absolute value of the length difference, Lmax represents the maximum length change, △K represents the absolute value of the width difference, Kmax represents the maximum width change, △S represents the depth difference, Smax represents the maximum depth change, △N represents the absolute value of the quantity difference, and Nmax represents the maximum quantity change.

[0027] Furthermore, the pier column evaluation module is also used to score the bridge pier column according to the vibration information and the settlement information, and when obtaining the stability score, it includes:

[0028] Collect vibration information of the bridge pier under load within a unit time, and construct a vibration sequence A=(A1, A2, A3, ..., An) according to the vibration information within the unit time, where Ai represents the vibration value, i=1, 2, 3, ..., n;

[0029] Calculating a vibration average value of the vibration sequence;

[0030] Collecting the settlement value of the bridge pier per unit time;

[0031] Set the stability score to S2, and calculate the stability score according to the vibration average value and the settlement value by the following formula:

[0032] Sw=S2*e+S2*f;

[0033] In the above formula, Sw represents the stability score, S2 represents the full score of the stability score, e represents the influence coefficient of the vibration average value, and f represents the influence coefficient of the settlement value. The value range of e and f is [0,0.5].

[0034] Furthermore, the pier column evaluation module is also used to determine whether to adjust the stability score according to the settlement change information, including:

[0035] Set a maximum settlement value, and if the settlement information within the unit time is greater than the maximum settlement value, determine whether to adjust the stability score;

[0036] If the settlement information within the unit time is less than or equal to the maximum settlement value, it is determined that the stability score is not adjusted.

[0037] Furthermore, the pier column evaluation module is also used to adjust the stability score according to the settlement change information if it is determined to be an adjustment, including:

[0038] Setting a first change value and a second change value, wherein the first change value is smaller than the second change value;

[0039] Collecting a settlement change value within a fixed time, and if the settlement change value is less than the first change value, adjusting the stability score by a first adjustment coefficient;

[0040] If the settlement change value is greater than or equal to the first change value and less than or equal to the second change value, the stability score is adjusted by a second adjustment coefficient;

[0041] If the settlement change value is greater than the second change value, adjusting the stability score by a third adjustment coefficient;

[0042] Among them, 1>first adjustment coefficient>second adjustment coefficient>third adjustment coefficient>0.

[0043] Furthermore, the comprehensive early warning module, when used to obtain a comprehensive score according to the structure score and the stability score, includes:

[0044] The comprehensive score is calculated by the following formula:

[0045] S = Sjγ*α+Sw*β;

[0046] In the above formula, S represents the comprehensive score, Sjγ represents the structural score, γ=1,2, α represents the structural score weight coefficient, Sw represents the stability score, β represents the stability score weight coefficient, where α+β=1;

[0047] Among them, if the comprehensive score is not adjusted, Sjγ is Sj1, if the comprehensive score is adjusted, Sjγ is Sj2; if the stability score is not adjusted, Sw is the stability score, if the stability score is adjusted, Sw is the adjusted stability score.

[0048] Furthermore, the comprehensive early warning module is used to perform graded early warning on the bridge pier according to the comprehensive score, including:

[0049] Set a first score and a second score, and the first score is less than the second score;

[0050] If the comprehensive score is less than the first score, a first-level warning is issued;

[0051] If the comprehensive score is greater than or equal to the first score and less than or equal to the second score, a second-level warning is issued;

[0052] If the comprehensive score is greater than the second score, a third-level warning is issued;

[0053] If the comprehensive score is full, no warning will be issued;

[0054] Among them, the warning levels from high to low are level one warning, level two warning and level three warning.

[0055] Compared with the prior art, the beneficial effect of the present invention is that the present invention realizes comprehensive monitoring of the state of bridge piers by integrating crack sensors, vibration sensors and settlement monitoring equipment. The system can collect and analyze the crack, vibration and settlement information of bridge piers in real time, and provide accurate data support for the health status of the bridge. The pier evaluation module performs structural scoring according to the crack information, and dynamically adjusts the score in combination with the crack changes to reflect the actual damage of the bridge piers. At the same time, the system also scores the stability of the piers through vibration and settlement information, and adjusts the stability score in time according to the settlement changes to evaluate the long-term stability of the bridge. Finally, the comprehensive early warning module comprehensively evaluates the structural score and stability score, generates a comprehensive score, and issues an alarm in time through the hierarchical early warning system to help decision makers take effective measures when potential risks occur in the bridge. The advantage of this system lies in the multi-dimensional and dynamic monitoring and evaluation method, which can not only reflect the current status of the bridge in real time, but also warn of possible safety hazards in advance, significantly improve the accuracy and timeliness of bridge maintenance, ensure the safe operation of the bridge and extend its service life.

[0056] On the other hand, the present application also provides a monitoring and early warning method for bridge piers, comprising:

[0057] A sensor assembly is arranged on the bridge pier to be monitored, wherein the sensor assembly includes a crack sensor, a vibration sensor and a settlement monitoring device;

[0058] Collecting real-time information of the bridge pier, wherein the real-time information includes crack information, vibration information and settlement information;

[0059] Scoring the bridge pier according to the crack information to obtain a structural score, judging whether to adjust the structural score according to the crack change information, and if it is judged that adjustment is required, adjusting the structural score according to the crack change information;

[0060] Scoring the bridge pier according to the vibration information and the settlement information to obtain a stability score, judging whether to adjust the stability score according to the settlement change information, and if it is judged to be adjusted, adjusting the stability score according to the settlement change information;

[0061] A comprehensive score is obtained based on the structure score and the stability score, and a graded warning is given to the bridge pier based on the comprehensive score.

[0062] It is understandable that the monitoring and early warning system and method for bridge piers provided in the present application have the same beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0064] Figure 1 A functional block diagram of a monitoring and early warning system for bridge piers provided in an embodiment of the present invention;

[0065] Figure 2 A flow chart of a monitoring and early warning method for bridge piers provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0066] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0067] In some embodiments of the present application, see Figure 1 As shown, this embodiment provides a monitoring and early warning system for bridge piers, including:

[0068] A sensor assembly is arranged on the bridge pier to be monitored, and the sensor assembly includes a crack sensor, a vibration sensor and a settlement monitoring device;

[0069] A collection module is used to collect real-time information of bridge piers, wherein the real-time information includes crack information, vibration information and settlement information;

[0070] The pier column evaluation module is used to score the bridge pier columns according to the crack information to obtain the structural score, and determine whether to adjust the structural score according to the crack change information. If it is determined that adjustment is required, the structural score is adjusted according to the crack change information;

[0071] The pier evaluation module is also used to score the bridge piers according to the vibration information and the settlement information to obtain the stability score, and to determine whether to adjust the stability score according to the settlement change information. If it is determined to be adjusted, the stability score is adjusted according to the settlement change information;

[0072] The comprehensive early warning module is used to obtain a comprehensive score based on the structure score and the stability score, and to provide graded early warning for bridge piers based on the comprehensive score.

[0073] It is understandable that the present invention realizes comprehensive monitoring of the state of bridge piers by integrating crack sensors, vibration sensors and settlement monitoring equipment. The system can collect and analyze the crack, vibration and settlement information of bridge piers in real time, and provide accurate data support for the health status of the bridge. The pier evaluation module performs structural scoring according to the crack information, and dynamically adjusts the score in combination with the crack changes to reflect the actual damage of the bridge piers. At the same time, the system also scores the stability of the piers through vibration and settlement information, and adjusts the stability score in time according to the settlement changes to evaluate the long-term stability of the bridge. Finally, the comprehensive early warning module comprehensively evaluates the structural score and stability score, generates a comprehensive score, and issues an alarm in time through the hierarchical early warning system to help decision makers take effective measures when potential risks occur in the bridge. The advantage of this system lies in the multi-dimensional and dynamic monitoring and evaluation method, which can not only reflect the current status of the bridge in real time, but also warn of possible safety hazards in advance, significantly improve the accuracy and timeliness of bridge maintenance, ensure the safe operation of the bridge and extend its service life.

[0074] In some embodiments of the present application, the pier evaluation module is used to score the bridge pier according to the crack information, and when obtaining the structural score, it includes:

[0075] The crack information includes crack length, crack width, crack depth and crack number;

[0076] Set the maximum score of the structure score to S1 and calculate the structure score using the following formula:

[0077] Sj1=a*S1+b*S1+c*S1+d*S1;

[0078] In the above formula, Sj1 represents the structural score, S1 represents the full score of the structural score, a represents the influence coefficient of crack length, b represents the influence coefficient of crack width, c represents the influence coefficient of crack depth, and d represents the influence coefficient of crack number; among them, the value ranges of a, b, c and d are all [0,0.25].

[0079] In some embodiments of the present application, when the pier column evaluation module is used to determine whether to adjust the structure score according to the crack change information, it includes:

[0080] Collecting crack change information within a unit time, wherein the crack change information includes length change, width change, depth change and quantity change;

[0081] Set the maximum length change, width change, depth change and number change of cracks per unit time;

[0082] If the length change, width change, depth change and quantity change are all less than their corresponding maximum values, it is determined that no adjustment will be made to the structural score;

[0083] Otherwise, the structural score is adjusted according to the crack change information.

[0084] In some embodiments of the present application, the pier column assessment module is used to adjust the structural score according to the crack change information if it is determined that adjustment is needed, including:

[0085] Calculate the absolute values ​​of the differences between the crack change information and its corresponding maximum length change, maximum width change, maximum depth change and maximum number change: the absolute value of the length difference, the absolute value of the width difference, the absolute value of the depth difference and the absolute value of the number difference;

[0086] The structural score is adjusted by the following formula:

[0087] Sj2=Sj1*(1-△L / Lmax-△K / Kmax-△S / Smax-△N / Nmax);

[0088] In the above formula, Sj2 represents the adjusted structural score, Sj1 represents the structural score, △L represents the absolute value of the length difference, Lmax represents the maximum length change, △K represents the absolute value of the width difference, Kmax represents the maximum width change, △S represents the depth difference, Smax represents the maximum depth change, △N represents the absolute value of the quantity difference, and Nmax represents the maximum quantity change.

[0089] It can be understood that the bridge pier monitoring and early warning system effectively improves the accuracy and real-time performance of structural assessment through comprehensive scoring and dynamic adjustment of crack information. During the scoring process, the system not only considers the basic parameters of crack length, width, depth and number, but also makes dynamic adjustments based on the change information of the cracks, making the scoring more in line with the actual situation. By setting the maximum value of the crack change, the system can determine in real time whether the crack has undergone abnormal changes, so as to adjust the structural score in time to reflect the health status of the bridge pier. The adjusted scoring formula takes into account the amplitude of the crack change, ensuring that the scoring results can accurately reflect the degree of crack progression and provide a more scientific basis for bridge maintenance decisions. In addition, the design of the system makes the scoring process both flexible and able to respond to potential safety hazards in a timely manner, significantly improving the accuracy and timeliness of early warnings, thereby ensuring the long-term safe operation of the bridge and reducing maintenance costs.

[0090] In some embodiments of the present application, the pier evaluation module is further used to score the bridge piers according to the vibration information and the settlement information, and when obtaining the stability score, it includes:

[0091] The vibration information of the bridge pier under load in unit time is collected, and according to the vibration information in unit time, a vibration sequence A = (A1, A2, A3, ..., An) is constructed, where Ai represents the vibration value, i = 1, 2, 3, ..., n;

[0092] Calculate the vibration mean value of the vibration sequence;

[0093] Collect the settlement value of bridge piers per unit time;

[0094] Set the stability score to S2, and calculate the stability score based on the vibration average and the settlement value using the following formula:

[0095] Sw=S2*e+S2*f;

[0096] In the above formula, Sw represents the stability score, S2 represents the full score of the stability score, e represents the influence coefficient of the vibration average value, and f represents the influence coefficient of the settlement value. The value range of e and f is [0,0.5].

[0097] In some embodiments of the present application, the pier column evaluation module is further used to determine whether to adjust the stability score according to the settlement change information, including:

[0098] Set the maximum settlement value. If the settlement information per unit time is greater than the maximum settlement value, the stability score will be adjusted.

[0099] If the settlement information per unit time is less than or equal to the maximum settlement value, it is determined that the stability score will not be adjusted.

[0100] In some embodiments of the present application, the pier column assessment module is further used to adjust the stability score according to the settlement change information if it is determined to be an adjustment, including:

[0101] Setting a first change value and a second change value, wherein the first change value is smaller than the second change value;

[0102] Collecting the settlement change value within a fixed time, if the settlement change value is less than the first change value, adjusting the stability score by the first adjustment coefficient;

[0103] If the settlement change value is greater than or equal to the first change value and less than or equal to the second change value, the stability score is adjusted by the second adjustment coefficient;

[0104] If the settlement change value is greater than the second change value, the stability score is adjusted by the third adjustment coefficient;

[0105] Among them, 1>first adjustment coefficient>second adjustment coefficient>third adjustment coefficient>0.

[0106] It can be understood that the bridge pier monitoring and early warning system effectively improves the assessment accuracy and dynamic response capability of the stability of bridge piers through the comprehensive scoring of vibration information and settlement information. The system first collects vibration sequences and calculates the average vibration value, as well as monitors the settlement changes, and combines these data to calculate the stability score. This dual evaluation method based on vibration and settlement can fully reflect the stability changes of bridge piers during load and long-term use. By setting the influence coefficients of vibration and settlement, the system can dynamically adjust the score according to the actual situation to ensure that early warnings are issued in time when vibration or settlement is abnormal. At the same time, the system can make detailed adjustments based on the amount of settlement changes, and use different adjustment coefficients according to different settlement change ranges, so that the score is more accurate and can more sensitively reflect the stability changes of bridge piers. It can not only monitor the health status of the piers in real time, but also effectively predict possible risks, ensure the long-term safety and stability of the bridge, and provide a scientific basis for maintenance and reinforcement, avoiding structural instability or safety hazards caused by settlement problems.

[0107] In some embodiments of the present application, the comprehensive early warning module, when used to obtain a comprehensive score based on the structure score and the stability score, includes:

[0108] The comprehensive score is calculated by the following formula:

[0109] S = Sjγ*α+Sw*β;

[0110] In the above formula, S represents the comprehensive score, Sjγ represents the structural score, γ=1,2, α represents the structural score weight coefficient, Sw represents the stability score, β represents the stability score weight coefficient, where α+β=1;

[0111] Among them, if the comprehensive score is not adjusted, Sjγ is Sj1, if the comprehensive score is adjusted, Sjγ is Sj2; if the stability score is not adjusted, Sw is the stability score, if the stability score is adjusted, Sw is the adjusted stability score.

[0112] In some embodiments of the present application, the comprehensive warning module is used to provide graded warnings for bridge piers according to the comprehensive scores, including:

[0113] Set a first score and a second score, and the first score is less than the second score;

[0114] If the comprehensive score is lower than the first score, a first-level warning will be issued;

[0115] If the comprehensive score is greater than or equal to the first score, and less than or equal to the second score, a second-level warning will be issued;

[0116] If the comprehensive score is greater than the second score, a third-level warning will be issued;

[0117] If the comprehensive score is full, no warning will be issued;

[0118] Among them, the warning levels from high to low are level one warning, level two warning and level three warning.

[0119] It can be understood that the present invention forms a comprehensive score by integrating the structural score and the stability score, and performs graded early warning on the bridge piers according to the score, which effectively improves the sensitivity and accuracy of the early warning. The system combines the structural score and the stability score, assigns different weight coefficients to the two, and flexibly adjusts the comprehensive score, so that the evaluation result is more representative and practical. When the score is adjusted, the system can re-evaluate the health status of the pier according to the latest data to ensure that the score can truly reflect the current situation. After the comprehensive score, the system can divide the early warning into three levels through the set early warning threshold, so as to take corresponding countermeasures according to different risk levels. The first-level early warning corresponds to a higher risk, and the second-level and third-level early warnings indicate that the bridge piers have a certain degree of safety hazards. This multi-level early warning mechanism can ensure that when potential problems occur in the bridge piers, the alarm is issued in a timely and accurate manner, helping decision makers take timely measures to prevent larger-scale damage. At the same time, the design of not issuing an early warning under a full-score comprehensive score can avoid overreaction, ensure the stability and operability of the system, and comprehensively improve the safety management level of the bridge.

[0120] On the other hand, see Figure 2 As shown, the present application also provides a monitoring and early warning method for bridge piers, which is applied to the above-mentioned monitoring and early warning system for bridge piers, and includes the following steps:

[0121] S100, installing a sensor assembly on a bridge pier to be monitored, wherein the sensor assembly includes a crack sensor, a vibration sensor and a settlement monitoring device;

[0122] S200, collecting real-time information of bridge piers, wherein the real-time information includes crack information, vibration information and settlement information;

[0123] S300, scoring the bridge pier according to the crack information to obtain a structural score, and judging whether to adjust the structural score according to the crack change information; if it is judged that adjustment is required, adjusting the structural score according to the crack change information;

[0124] S400, scoring the bridge piers according to the vibration information and the settlement information to obtain a stability score, and judging whether to adjust the stability score according to the settlement change information; if it is judged to be adjusted, adjusting the stability score according to the settlement change information;

[0125] S500: Obtain a comprehensive score based on the structure score and stability score, and issue graded warnings for bridge piers based on the comprehensive score.

[0126] It can be understood that the present invention provides a comprehensive and real-time bridge health monitoring solution, which effectively improves the accuracy and timeliness of bridge maintenance and safety warning. In this method, firstly, by installing crack sensors, vibration sensors and settlement monitoring equipment, multi-dimensional monitoring of bridge piers is achieved to ensure that key data such as cracks, vibrations and settlements can be fully obtained. Subsequently, based on the collected crack information and dynamic changes, the system can perform structural scoring on the bridge piers, and adjust the scores according to the crack change information to timely reflect the health status of the bridge piers. Through vibration and settlement information, the system can further evaluate the stability of the piers, and if settlement changes are found, the stability score is adjusted in time. Finally, the comprehensive score is calculated through multi-dimensional weighted calculation to form a unified evaluation result, and a graded warning is performed based on the comprehensive score to ensure the accuracy and timeliness of the warning. Through this method, the risk monitoring and management of bridges are more scientific and efficient, and problems can be discovered and measures can be taken in time at the early stage of occurrence, greatly reducing safety hazards and improving the long-term stability and safety of bridges.

[0127] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0128] The present application is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0129] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0130] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0131] 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, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A monitoring and early warning system for bridge piers, characterized in that: include: A sensor assembly is arranged on the bridge pier to be monitored, wherein the sensor assembly includes a crack sensor, a vibration sensor and a settlement monitoring device; A collection module, used to collect real-time information of the bridge pier, wherein the real-time information includes crack information, vibration information and settlement information; A pier evaluation module is used to score the bridge pier according to the crack information to obtain a structural score, and to determine whether to adjust the structural score according to the crack change information. If it is determined that adjustment is required, the structural score is adjusted according to the crack change information; The pier evaluation module is also used to score the bridge pier according to the vibration information and the settlement information to obtain a stability score, and to determine whether to adjust the stability score according to the settlement change information; if it is determined to be adjusted, the stability score is adjusted according to the settlement change information; The comprehensive early warning module is used to obtain a comprehensive score according to the structural score and the stability score, and to perform graded early warning on the bridge pier according to the comprehensive score.

2. The monitoring and early warning system for bridge piers according to claim 1 is characterized in that: The pier column evaluation module is used to score the bridge pier column according to the crack information to obtain a structural score, including: The crack information includes crack length, crack width, crack depth and crack quantity; Set the structure score full score S1, and calculate the structure score by the following formula: Sj1=a*S1+b*S1+c*S1+d*S1; In the above formula, Sj1 represents the structural score, S1 represents the full score of the structural score, a represents the influence coefficient of crack length, b represents the influence coefficient of crack width, c represents the influence coefficient of crack depth, and d represents the influence coefficient of crack number; among them, the value ranges of a, b, c and d are all [0,0.25].

3. The monitoring and early warning system for bridge piers according to claim 2 is characterized in that: The pier column evaluation module is used to determine whether to adjust the structure score according to the crack change information, including: Collecting crack change information within a unit time, wherein the crack change information includes length change, width change, depth change and quantity change; Set the maximum length change, width change, depth change and number change of cracks per unit time; If the length change, width change, depth change and quantity change are all less than their corresponding maximum values, it is determined that the structure score will not be adjusted; Otherwise, the structural score is adjusted according to the crack change information.

4. The monitoring and early warning system for bridge piers according to claim 3 is characterized in that: The pier column evaluation module is used to adjust the structure score according to the crack change information if it is determined that adjustment is needed, including: Respectively calculating the absolute values ​​of the differences between the crack change information and its corresponding maximum length change, maximum width change, maximum depth change and maximum number change: the absolute value of the length difference, the absolute value of the width difference, the absolute value of the depth difference and the absolute value of the number difference; The structural score was adjusted by the following formula: Sj2=Sj1*(1-△L / Lmax-△K / Kmax-△S / Smax-△N / Nmax); In the above formula, Sj2 represents the adjusted structural score, Sj1 represents the structural score, △L represents the absolute value of the length difference, Lmax represents the maximum length change, △K represents the absolute value of the width difference, Kmax represents the maximum width change, △S represents the depth difference, Smax represents the maximum depth change, △N represents the absolute value of the quantity difference, and Nmax represents the maximum quantity change.

5. The monitoring and early warning system for bridge piers according to claim 4 is characterized in that: The pier column evaluation module is also used to score the bridge pier column according to the vibration information and the settlement information, and when obtaining the stability score, it includes: Collect vibration information of the bridge pier under load within a unit time, and construct a vibration sequence A=(A1, A2, A3, ..., An) according to the vibration information within the unit time, where Ai represents the vibration value, i=1, 2, 3, ..., n; Calculating a vibration average value of the vibration sequence; Collecting the settlement value of the bridge pier per unit time; Set the stability score to S2, and calculate the stability score according to the vibration average value and the settlement value by the following formula: Sw=S2*e+S2*f; In the above formula, Sw represents the stability score, S2 represents the full score of the stability score, e represents the influence coefficient of the vibration average value, and f represents the influence coefficient of the settlement value. The value range of e and f is [0,0.5].

6. The monitoring and early warning system for bridge piers according to claim 5 is characterized in that: The pier column evaluation module is also used to determine whether to adjust the stability score according to the settlement change information, including: Set a maximum settlement value, and if the settlement information within the unit time is greater than the maximum settlement value, determine whether to adjust the stability score; If the settlement information within the unit time is less than or equal to the maximum settlement value, it is determined that the stability score is not adjusted.

7. The monitoring and early warning system for bridge piers according to claim 6 is characterized in that: The pier column evaluation module is also used to adjust the stability score according to the settlement change information if it is determined to be an adjustment, including: Setting a first change value and a second change value, wherein the first change value is smaller than the second change value; Collecting a settlement change value within a fixed time, and if the settlement change value is less than the first change value, adjusting the stability score by a first adjustment coefficient; If the settlement change value is greater than or equal to the first change value and less than or equal to the second change value, the stability score is adjusted by a second adjustment coefficient; If the settlement change value is greater than the second change value, adjusting the stability score by a third adjustment coefficient; Among them, 1>first adjustment coefficient>second adjustment coefficient>third adjustment coefficient>0.

8. The monitoring and early warning system for bridge piers according to claim 7 is characterized in that: The comprehensive early warning module, when used to obtain a comprehensive score according to the structure score and the stability score, includes: The comprehensive score is calculated by the following formula: S = Sjγ*α+Sw*β; In the above formula, S represents the comprehensive score, Sjγ represents the structural score, γ=1,2, α represents the structural score weight coefficient, Sw represents the stability score, β represents the stability score weight coefficient, where α+β=1; Among them, if the comprehensive score is not adjusted, Sjγ is Sj1, if the comprehensive score is adjusted, Sjγ is Sj2; if the stability score is not adjusted, Sw is the stability score, if the stability score is adjusted, Sw is the adjusted stability score.

9. The monitoring and early warning system for bridge piers according to claim 8, characterized in that: The comprehensive early warning module, when used to perform graded early warning on the bridge pier according to the comprehensive score, includes: Set a first score and a second score, and the first score is less than the second score; If the comprehensive score is less than the first score, a first-level warning is issued; If the comprehensive score is greater than or equal to the first score and less than or equal to the second score, a second-level warning is issued; If the comprehensive score is greater than the second score, a third-level warning is issued; If the comprehensive score is full, no warning will be issued; Among them, the warning levels from high to low are level one warning, level two warning and level three warning.

10. A monitoring and early warning method for bridge piers, applied to the monitoring and early warning system for bridge piers as claimed in any one of claims 1 to 9, characterized in that: include: A sensor assembly is arranged on the bridge pier to be monitored, wherein the sensor assembly includes a crack sensor, a vibration sensor and a settlement monitoring device; Collecting real-time information of the bridge pier, wherein the real-time information includes crack information, vibration information and settlement information; Scoring the bridge pier according to the crack information to obtain a structural score, judging whether to adjust the structural score according to the crack change information, and if it is judged that adjustment is required, adjusting the structural score according to the crack change information; Scoring the bridge pier according to the vibration information and the settlement information to obtain a stability score, judging whether to adjust the stability score according to the settlement change information, and if it is judged to be adjusted, adjusting the stability score according to the settlement change information; A comprehensive score is obtained based on the structure score and the stability score, and a graded warning is given to the bridge pier based on the comprehensive score.

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