A monitoring and early warning system and method for bridge piers

Abstract

The present invention relates to the technical field of bridge pier monitoring and early warning, and discloses a monitoring and early warning system and method for bridge piers. The system includes: a sensor assembly disposed on the bridge pier to be monitored; a collection module for collecting real-time information of the bridge pier; a pier evaluation module for scoring the bridge pier according to the crack information to obtain a structural score, and adjusting the structural score according to the crack change information; the pier evaluation module is further configured to score the bridge pier according to the vibration information and settlement information to obtain a stability score, and adjust the stability score according to the settlement change information; a comprehensive early warning module for obtaining a comprehensive score according to the structural score and the stability score, and performing hierarchical early warning on the bridge pier according to the comprehensive score. The present invention realizes the comprehensive monitoring of the state of the bridge pier.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge pier monitoring and early warning, and more specifically, 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 infrastructure facilities, their safety and stability are directly related to the life and property safety of the public. Bridge piers, as the key structural components that support the weight of the bridge and bear external loads, are affected by factors such as traffic loads, environmental conditions, and geological changes for a long time, and are prone to problems such as cracks, settlements, and vibrations. If these problems cannot be discovered and repaired in time, they may lead to serious damage to the bridge piers, and even structural failures, bringing incalculable safety risks. Therefore, the real-time monitoring and early warning of bridge piers are crucial.

[0003] Currently, 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, and it is difficult to achieve comprehensive, real-time, and continuous monitoring of the state of bridge piers. Traditional detection methods often only rely on certain static parameters, such as crack detection and settlement measurement. This single detection method cannot comprehensively reflect the health status of bridge piers and is prone to overlooking some dynamic problems, such as abnormal vibrations, resulting in the failure to expose potential 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 proposes a monitoring and early warning system for bridge piers, including:

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

[0008] An acquisition module, used for acquiring 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, used for 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;

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

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

[0012] Further, when the pier evaluation module is used to score the bridge pier according to the crack information to obtain a structure score, it includes:

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

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

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

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

[0017] Further, when the pier evaluation module is used to judge whether to adjust the structure score according to the crack change information, it includes:

[0018] Collect the crack change information within a unit time, where the crack change information includes length change amount, width change amount, depth change amount and number change amount;

[0019] Set the maximum length change, maximum width change, maximum depth change and maximum number change of the crack within a unit time;

[0020] If the length change amount, width change amount, depth change amount and number change amount are all less than their corresponding maximum values, it is judged that the structure score is not adjusted;

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

[0022] Further, when the pier evaluation module is used to adjust the structure score according to the crack change information if it is judged to be necessary, it includes:

[0023] Calculate the absolute value of the difference between the crack change information and its corresponding maximum length change, maximum width change, maximum depth change, and maximum quantity change respectively: absolute length difference, absolute width difference, absolute depth difference, and absolute quantity difference;

[0024] Adjust the structure score through the following formula:

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

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

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

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

[0029] Calculate the vibration average value of the vibration sequence;

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

[0031] Set the full score S2 of the stability score, and calculate the stability score according to the vibration average value and settlement value through 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 vibration average value influence coefficient, f represents the settlement value influence coefficient, where the value ranges of e and f are both [0, 0.5].

[0034] Further, when the pier column evaluation module is further used to judge whether to adjust the stability score according to the settlement change information, it includes:

[0035] Set the maximum settlement value. If the settlement information per unit time is greater than the maximum settlement value, it is judged that the stability score is adjusted;

[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 will not be adjusted.

[0037] Further, when 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 adjusted, it includes:

[0038] Set a first change value and a second change value, where the first change value is less than the second change value;

[0039] Collect the settlement change value within a fixed time. If the settlement change value is less than the first change value, adjust the stability score by the 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, adjust the stability score by the second adjustment coefficient;

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

[0042] Where 1 > the first adjustment coefficient > the second adjustment coefficient > the third adjustment coefficient > 0.

[0043] Further, when the comprehensive warning module is used to obtain the comprehensive score according to the structure score and the stability score, it includes:

[0044] Calculate the comprehensive score through the following formula:

[0045] S = Sjγ * α + Sw * β;

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

[0047] Where, if the structure score is not adjusted, Sjγ is Sj1, if the structure 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] Further, when the comprehensive warning module is used to conduct hierarchical warning on the bridge pier column according to the comprehensive score, it includes:

[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, conduct a first-level warning;

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

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

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

[0054] Among them, the warning levels are, from high to low, primary warning, secondary warning, and tertiary warning in sequence.

[0055] Compared with the prior art, the beneficial effects of the present invention are as follows: By integrating crack sensors, vibration sensors, and settlement monitoring devices, the present invention realizes comprehensive monitoring of the state of bridge piers. The system can collect and analyze the crack, vibration, and settlement information of bridge piers in real time, providing accurate data support for the health status of bridges. The pier evaluation module conducts a structural score based on the crack information, dynamically adjusts the score in combination with crack changes, and reflects the actual damage condition of the bridge pier. At the same time, the system also scores the stability of the pier based on the vibration and settlement information, and adjusts the stability score in a timely manner according to the settlement changes to evaluate the long-term stability of the bridge. Finally, the comprehensive warning module comprehensively evaluates the structural score and the stability score, generates a comprehensive score, and issues an alarm in a timely manner through a hierarchical warning system, helping decision-makers take effective measures when potential risks occur in the bridge. The advantage of this system lies in its multi-dimensional and dynamic monitoring and evaluation methods, which can not only reflect the current condition of the bridge in real time but also early warn of possible safety hazards, significantly improving the accuracy and timeliness of bridge maintenance, ensuring the safe operation of the bridge and extending its service life.

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

[0057] Installing a sensor assembly on the bridge pier to be monitored, where the sensor assembly includes a crack sensor, a vibration sensor, and a settlement monitoring device;

[0058] Collecting the real-time information of the bridge pier, where 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 needed, adjusting the structural score according to the crack change information;

[0060] Score the bridge pier according to the vibration information and settlement information to obtain a stability score, and judge whether to adjust the stability score according to the settlement change information. If it is judged to be adjusted, adjust the stability score according to the settlement change information;

[0061] Obtain a comprehensive score according to the structural score and the stability score, and perform a hierarchical warning on the bridge pier according to the comprehensive score.

[0062] It can be understood that the monitoring and warning system and method for bridge piers provided in this application have the same beneficial effects, which will not be elaborated here. Description of the Drawings

[0063] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

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

[0065] Figure 2 It is a flowchart of the monitoring and warning method for bridge piers provided by an embodiment of the present invention. Detailed Embodiments

[0066] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

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

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

[0069] An acquisition module is used to acquire the real-time information of the bridge pier, where 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 column according to the crack information to obtain a structural score, and judge whether to adjust the structural score according to the crack change information. If it is judged that adjustment is needed, the structural score is adjusted according to the crack change information;

[0071] The pier column evaluation module is also used to score the bridge pier column according to the vibration information and settlement information to obtain a stability score, and judge whether to adjust the stability score according to the settlement change information. If it is judged 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 according to the structural score and the stability score, and conduct hierarchical early warning on the bridge pier column according to the comprehensive score.

[0073] It can be understood that the present invention realizes the comprehensive monitoring of the state of the bridge pier column by integrating crack sensors, vibration sensors and settlement monitoring devices. The system can collect and analyze the crack, vibration and settlement information of the bridge pier column in real time, providing accurate data support for the health status of the bridge. The pier column evaluation module scores the structure according to the crack information, and dynamically adjusts the score in combination with the crack changes, reflecting the actual damage condition of the bridge pier column. At the same time, the system also scores the stability of the pier column 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 the stability score, generates a comprehensive score, and issues an alarm in time through the hierarchical early warning system, helping 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 condition of the bridge in real time, but also early warn of possible safety hazards, significantly improving the accuracy and timeliness of bridge maintenance, ensuring the safe operation of the bridge and extending its service life.

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

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

[0076] Set the full score S1 of the structural score, and calculate the structural score through 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 crack length influence coefficient, b represents the crack width influence coefficient, c represents the crack depth influence coefficient, and d represents the crack number influence coefficient; 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 evaluation module is used to determine whether to adjust the structural score according to the crack change information, it includes:

[0080] Collect the crack change information within a unit time, where the crack change information includes the length change amount, width change amount, depth change amount, and quantity change amount;

[0081] Set the maximum length change, maximum width change, maximum depth change, and maximum quantity change of the cracks within a unit time;

[0082] If the length change amount, width change amount, depth change amount, and quantity change amount are all less than their corresponding maximum values, it is determined that the structural score is not adjusted;

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

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

[0085] Calculate the absolute values of the differences between the crack change information and their corresponding maximum length change, maximum width change, maximum depth change, and maximum quantity change respectively: 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 quantity difference;

[0086] Adjust the structural score through 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 evaluation through comprehensive scoring and dynamic adjustment of crack information. During the scoring process, the system not only considers basic parameters such as the length, width, depth, and quantity of cracks, but also can dynamically adjust according to the change information of cracks, making the scoring more in line with the actual situation. By setting the maximum value of crack change, the system can judge in real time whether abnormal changes have occurred in the cracks, thereby timely adjusting the structural score to reflect the health status of the bridge pier. The adjusted scoring formula takes into account the amplitude of crack change, ensuring that the scoring result can accurately reflect the degree of crack progression, providing 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 promptly to potential safety hazards, significantly improving the accuracy and timeliness of early warning, thus 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 configured to score the bridge pier according to vibration information and settlement information. When obtaining the stability score, it includes:

[0091] Collect the vibration information of the bridge pier during loading 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;

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

[0093] Collect the settlement value of the bridge pier within a unit time;

[0094] Set the full score S2 of the stability score, and calculate the stability score according to the average vibration value and the settlement value through 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 average vibration value, and f represents the influence coefficient of the settlement value. Among them, the value ranges of e and f are both [0, 0.5].

[0097] In some embodiments of the present application, when the pier evaluation module is further configured to judge whether to adjust the stability score according to the settlement change information, it includes:

[0098] Set the maximum settlement value. If the settlement information within a unit time is greater than the maximum settlement value, it is judged that the stability score is adjusted;

[0099] If the settlement information within a unit time is less than or equal to the maximum settlement value, it is judged that the stability score is not adjusted.

[0100] In some embodiments of the present application, when the pier column evaluation module is further configured to adjust the stability score according to the settlement change information if it is determined to be adjusted, it includes:

[0101] Set a first change value and a second change value, where the first change value is less than the second change value;

[0102] Collect the settlement change value within a fixed time. If the settlement change value is less than the first change value, adjust the stability score through 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, adjust the stability score through the second adjustment coefficient;

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

[0105] Where 1 > the first adjustment coefficient > the second adjustment coefficient > the third adjustment coefficient > 0.

[0106] It can be understood that the bridge pier column monitoring and early warning system effectively improves the evaluation accuracy and dynamic response ability of the bridge pier column stability through the comprehensive scoring of vibration information and settlement information. The system first calculates the vibration average value by collecting the vibration sequence and monitors the settlement change, and combines these data to calculate the stability score. This dual evaluation method based on vibration and settlement can comprehensively reflect the stability change of the bridge pier column during loading 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 timely early warning when vibration or settlement is abnormal. At the same time, the system can make detailed adjustments according to the settlement change amount, using different adjustment coefficients according to different settlement change ranges, making the score more accurate and more sensitive to reflect the stability change of the bridge pier column. It can not only monitor the health status of the pier column 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, when the comprehensive early warning module is used to obtain the comprehensive score according to the structure score and the stability score, it includes:

[0108] Calculate the comprehensive score through the following formula:

[0109] S = Sjγ * α + Sw * β;

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

[0111] Among them, if the structural score is not adjusted, Sjγ is Sj1; if the structural 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, when the comprehensive early warning module is used to classify and early warn the bridge pier according to the comprehensive score, it includes:

[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 less than the first score, a first-level early warning is 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 early warning is issued;

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

[0117] If the comprehensive score is full marks, no early warning is issued;

[0118] Among them, the early warning levels are, from high to low, the first-level early warning, the second-level early warning, and the third-level early warning.

[0119] It can be understood that the present invention forms a comprehensive score by comprehensively considering the structural score and the stability score, and classifies and early warns the bridge pier according to this score, effectively improving 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, making the evaluation result 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, through the set early warning threshold, the system can divide the early warning into three levels, and thus take corresponding countermeasures according to different risk levels. The first-level early warning corresponds to a higher risk, while the second-level and third-level early warnings indicate that there are certain safety hazards in the bridge pier. This multi-level early warning mechanism can ensure that when potential problems occur in the bridge pier, an 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 the full-mark 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, referring to 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. Set up a sensor assembly on the bridge pier to be monitored. Among them, the sensor assembly includes a crack sensor, a vibration sensor, and a settlement monitoring device.

[0122] S200. Collect real-time information of the bridge pier. Among them, the real-time information includes crack information, vibration information, and settlement information.

[0123] S300. Score the bridge pier according to the crack information to obtain a structural score. Judge whether to adjust the structural score according to the crack change information. If it is judged that adjustment is needed, adjust the structural score according to the crack change information.

[0124] S400. Score the bridge pier according to the vibration information and settlement information to obtain a stability score. Judge whether to adjust the stability score according to the settlement change information. If it is judged that adjustment is needed, adjust the stability score according to the settlement change information.

[0125] S500. Obtain a comprehensive score according to the structural score and the stability score, and conduct a graded warning for the bridge pier according to 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, first, by installing a crack sensor, a vibration sensor, and a settlement monitoring device, multi-dimensional monitoring of the bridge pier is realized to ensure that key data such as cracks, vibrations, and settlements can be comprehensively obtained. Subsequently, according to the collected crack information and dynamic changes, the system can score the bridge pier structurally and adjust the score according to the crack change information to timely reflect the health status of the bridge pier. Through vibration and settlement information, the system can further evaluate the stability of the pier. If settlement changes are found, the stability score is adjusted in a timely manner. Finally, the comprehensive score is calculated through multi-dimensional weighting to form a unified evaluation result, and a graded warning is carried out according to the comprehensive score to ensure the accuracy and timeliness of the warning. Through this method, the risk monitoring and management of the bridge are more scientific and efficient, and problems can be detected and measures can be taken in a timely manner at the initial stage of the problem, greatly reducing potential safety hazards and enhancing the long-term stability and safety of the bridge.

[0127] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can 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 code.

[0128] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams can be implemented by computer program instructions, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can also be implemented. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing devices to generate a machine, so that the instructions executed by the processors of the computer or other programmable data processing devices generate means for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or means for implementing the functions specified in multiple blocks.

[0129] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implement the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or means for implementing the functions specified in multiple blocks.

[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 generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or means for implementing the functions specified in multiple blocks.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the specific implementation manners of the present invention can still be modified or equivalently replaced, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered by the protection scope of the claims of the present invention.

Claims

1. A monitoring and early warning system for bridge piers, characterized in that, Including: A sensor assembly, arranged on the bridge pier to be monitored, the sensor assembly including a crack sensor, a vibration sensor and a settlement monitoring device; An acquisition module, used to acquire the real-time information of the bridge pier, wherein the real-time information includes crack information, vibration information and settlement information; A pier evaluation module, used to score the bridge pier according to the crack information to obtain a structure score, judge whether to adjust the structure score according to the crack change information, and if it is judged that adjustment is needed, adjust the structure score according to the crack change information; The pier evaluation module is also used to score the bridge pier according to the vibration information and settlement information to obtain a stability score, judge whether to adjust the stability score according to the settlement change information, and if it is judged to be adjusted, adjust the stability score according to the settlement change information; A comprehensive early warning module, used to obtain a comprehensive score according to the structure score and the stability score, and perform hierarchical early warning on the bridge pier according to the comprehensive score; When the pier evaluation module is used to score the bridge pier according to the crack information to obtain a structure score, it includes: The crack information includes crack length, crack width, crack depth and crack number; Set the full score S1 of the structure score, and calculate the structure score through the following formula: Sj1 = a * S1 + b * S1 + c * S1 + d * S1; In the above formula, Sj1 represents the structure score, S1 represents the full score of the structure score, a represents the crack length influence coefficient, b represents the crack width influence coefficient, c represents the crack depth influence coefficient, d represents the crack number influence coefficient; wherein, the value ranges of a, b, c and d are all [0, 0.25]; When the pier evaluation module is used to judge whether to adjust the structure score according to the crack change information, it includes: Acquire the crack change information within a unit time, wherein the crack change information includes length change amount, width change amount, depth change amount and number change amount; Set the maximum length change, maximum width change, maximum depth change and maximum number change of the crack within a unit time; If the length change amount, width change amount, depth change amount and number change amount are all less than their corresponding maximum values, it is judged that the structure score is not adjusted; Otherwise, adjust the structure score according to the crack change information; When the pier evaluation module is used to adjust the structure score according to the crack change information if it is judged that adjustment is needed, it includes: Respectively calculate the absolute values of the differences between the crack change information and their corresponding maximum length change, maximum width change, maximum depth change and maximum number change: absolute value of length difference, absolute value of width difference, absolute value of depth difference and absolute value of number difference; Adjust the structure score through the following formula: Sj2 = Sj1 * (1 - △L / Lmax - △K / Kmax - △S / Smax - △N / Nmax); In the above formula, Sj2 represents the adjusted structure score, Sj1 represents the structure score, △L represents the absolute value of the length difference, Lmax represents the maximum value of the length change, △K represents the absolute value of the width difference, Kmax represents the maximum value of the width change, △S represents the depth difference, Smax represents the maximum value of the depth change, △N represents the absolute value of the quantity difference, and Nmax represents the maximum value of the quantity change.

2. The monitoring and early warning system for bridge piers according to claim 1, wherein, The pier evaluation module is further configured to score the bridge pier according to the vibration information and the settlement information. When obtaining the stability score, it includes: Collect the vibration information of the bridge pier during loading per unit time, and construct a vibration sequence A=(A1, A2, A3, …, An) according to the vibration information per unit time, where Ai represents the vibration value, and i = 1, 2, 3, …, n; Calculate the average vibration value of the vibration sequence; Collect the settlement value of the bridge pier per unit time; Set the full score S2 of the stability score, and calculate the stability score according to the average vibration value and the settlement value through 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 average vibration value, and f represents the influence coefficient of the settlement value. Among them, the value ranges of e and f are both [0, 0.5].

3. The monitoring and early warning system for bridge piers according to claim 2, wherein, When the pier evaluation module is further configured to judge whether to adjust the stability score according to the settlement change information, it includes: Set the maximum settlement value. If the settlement information per unit time is greater than the maximum settlement value, it is judged that the stability score is adjusted; If the settlement information per unit time is less than or equal to the maximum settlement value, it is judged that the stability score is not adjusted.

4. The monitoring and early warning system for bridge piers according to claim 3, wherein, When the pier evaluation module is further configured to adjust the stability score according to the settlement change information if it is judged to be adjusted, it includes: Set the first change value and the second change value, where the first change value is less than the second change value; Collect the settlement change value within a fixed time. If the settlement change value is less than the first change value, adjust the stability score through the 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, adjust the stability score through the second adjustment coefficient; If the settlement change value is greater than the second change value, adjust the stability score through the third adjustment coefficient; Among them, 1 > the first adjustment coefficient > the second adjustment coefficient > the third adjustment coefficient > 0.

5. The monitoring and early warning system for bridge piers according to claim 4, characterized in that, The comprehensive warning module, when used to obtain the comprehensive score according to the structure score and the stability score, includes: Calculate the comprehensive score through the following formula: S = Sjγ*α + Sw*β; In the above formula, S represents the comprehensive score, Sjγ represents the structure score, γ = 1, 2, α represents the structure score weight coefficient, Sw represents the stability score, β represents the stability score weight coefficient, and among them, 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.

6. The monitoring and early warning system for bridge piers according to claim 5, characterized in that, When the comprehensive early warning module is used to perform hierarchical early warning on the bridge pier according to the comprehensive score, it 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 early 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 early warning is issued; If the comprehensive score is greater than the second score, a third-level early warning is issued; If the comprehensive score is full marks, no early warning is issued; Among them, the early warning levels are, from high to low, the first-level early warning, the second-level early warning, and the third-level early warning.

7. A monitoring and early warning method for bridge piers, applied to the monitoring and early warning system for bridge piers according to any one of claims 1-6, characterized in that, It includes: A sensor component is set on the bridge pier to be monitored. Among them, the sensor component includes a crack sensor, a vibration sensor, and a settlement monitoring device; Collect the real-time information of the bridge pier. Among them, the real-time information includes crack information, vibration information, and settlement information; Score the bridge pier according to the crack information to obtain a structural score, and judge whether to adjust the structural score according to the crack change information. If it is judged that adjustment is needed, adjust the structural score according to the crack change information; Score the bridge pier according to the vibration information and settlement information to obtain a stability score, and judge whether to adjust the stability score according to the settlement change information. If it is judged that adjustment is needed, adjust the stability score according to the settlement change information; Obtain a comprehensive score according to the structural score and the stability score, and perform hierarchical early warning on the bridge pier according to the comprehensive score.

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