Integrated lightweight infrastructure structure safety monitoring method

Abstract

The present invention provides an integrated lightweight infrastructure structure safety monitoring method, which relates to the technical field of infrastructure monitoring. The integrated lightweight infrastructure structure safety monitoring method comprises the following steps: obtaining state perception data of the infrastructure structure through a perception sensor; judging the safety state of the infrastructure structure according to the state perception data of the infrastructure structure; and transmitting the judgment result of the safety state of the infrastructure structure to a network switch through a communication protocol. The present invention combines four dimensions of speed, displacement, acceleration, and inclination to evaluate the structural safety state, thereby avoiding the storage of a large amount of redundant data in a server or cloud platform, thereby solving the problem of many types of current infrastructure structure monitoring sensors and avoiding the lack of a unified interface communication standard for sensors from different manufacturers and collectors from different manufacturers.

Description

Technical Field

[0001] The present invention relates to the technical field of infrastructure monitoring, and in particular to an integrated lightweight infrastructure structure safety monitoring method. Background Art

[0002] At present, the traditional technical means is to obtain the health information of the structure through the structural safety monitoring system so that the structural safety status can be judged, and early warning information can be provided to avoid accidents. However, there is an important problem: due to the large-scale deployment of sensors (acceleration, velocity, inclination, displacement) and collectors from different manufacturers, there is no unified interface communication standard, the amount of raw data is large and the aliasing phenomenon is serious. This phenomenon leads to the high cost of the structural safety monitoring system, and also leads to the lack of obvious monitoring effect, which cannot be promoted on a large scale under limited budget.

[0003] Specifically, if Figure 5 As shown in the figure, for an infrastructure monitoring project, with limited budget, it is necessary to complete the monitoring of three points at the same time, and each point needs to obtain four indicator data of acceleration, speed, inclination, and displacement. According to the traditional solution, at least 12 sensors (3 each for acceleration, speed, inclination, and displacement) need to be deployed, 4 data collectors (each with at least 3 channels), 1 network switch, 1 local server, and 1 remote server. Therefore, not only will the data volume be large, but the budget cost will also be high.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of this, the present invention provides an integrated lightweight infrastructure structure safety monitoring method to solve the problem that the structural safety monitoring system mentioned above is too expensive, and the monitoring effect is not obvious, and it cannot be promoted on a large scale under limited budget.

[0006] In order to solve the above problems, the specific technical solutions adopted by the present invention are as follows:

[0007] According to one aspect of the present invention, there is provided an integrated lightweight infrastructure structure safety monitoring method, the integrated lightweight infrastructure structure safety monitoring method comprising the following steps:

[0008] S1, obtain the state perception data of the infrastructure structure through perception sensors;

[0009] S2, judging the safety status of the infrastructure structure based on the status perception data of the infrastructure structure;

[0010] S3, transmitting the security status judgment result of the infrastructure structure to the network switch through the communication protocol;

[0011] Preferably, judging the safety status of the infrastructure structure according to the status perception data of the infrastructure structure comprises the following steps:

[0012] S21. Calculating infrastructure structure safety indicators based on the state perception data of the infrastructure structure;

[0013] S22. Construct a structural safety assessment model based on infrastructure structural safety indicators and infrastructure structure status perception data;

[0014] S23. Evaluate the safety status of the infrastructure structure based on the structural safety assessment model and infrastructure structural safety indicators.

[0015] Preferably, the perception sensor is a speed sensor, and the data sampling rate of the speed sensor is set to 0.1 milliseconds / time, and the state perception data of the infrastructure structure obtained by the speed sensor is speed data.

[0016] Preferably, the calculating of the infrastructure structure safety index according to the state perception data of the infrastructure structure comprises:

[0017] Calculate acceleration data and displacement change data of the infrastructure structure respectively according to the state perception data of the infrastructure structure;

[0018] The inclination data of the infrastructure structure are calculated based on the acceleration data of the infrastructure structure.

[0019] Preferably, the acceleration data calculation formula of the infrastructure structure is:

[0020] A ( t 0)= dV ( t 0) / dt 0;

[0021] In the formula, A ( t 0) indicates that the infrastructure structure is t Acceleration data at time 0;

[0022] dV ( t 0) indicates the change in speed;

[0023] dt 0 represents the change in time;

[0024] V ( t 0) indicates that the infrastructure structure is tSpeed ​​at time 0.

[0025] Preferably, the displacement change data calculation formula of the infrastructure structure is:

[0026] ;

[0027] In the formula, Δ S Represents displacement change data of infrastructure structures;

[0028] ∫ represents the integral operation;

[0029] t 0 and t 1 represents the start time and end time of the integration respectively;

[0030] dt Indicates the amount of change over time;

[0031] v Indicates the speed of the infrastructure structure.

[0032] Preferably, the calculation formula for calculating the inclination data of the infrastructure structure based on the acceleration data of the infrastructure structure is:

[0033] ;

[0034] ;

[0035] ;

[0036] In the formula, α , β and γ Respectively represent the infrastructure structure in X , Y and Z Directional inclination data;

[0037] A X , A Y and A Z Respectively represent the infrastructure structure in X , Y and Z Acceleration data in direction.

[0038] Preferably, the expression of the structural safety assessment model is:

[0039] ;

[0040] ;

[0041] ;

[0042] ;

[0043] ;

[0044] ;

[0045] ;

[0046] ;

[0047] ;

[0048] In the formula, FFT ( V X * A X * S X * α ), FFT ( V Y * A Y * S Y * β )and FFT ( V Z * A Z * S Z * γ ) represent the infrastructure structure in X , Y and Z Fast Fourier transform value of the product of directional velocity data, acceleration data, displacement data and inclination data;

[0049] Δ F Indicates the dynamic value of the natural frequency allowed by the infrastructure structure;

[0050] V X , V Y and V Z Respectively represent the infrastructure structure in X , Y and Z Speed ​​data in direction;

[0051] A X , AY and A Z Respectively represent the infrastructure structure in X , Y and Z Acceleration data in direction;

[0052] S X , S Y and S Z Respectively represent the infrastructure structure in X , Y and Z Displacement data in direction;

[0053] α , β and γ Respectively represent the infrastructure structure in X , Y and Z Directional inclination data;

[0054] H X , H Y and H Z Respectively represent the infrastructure structure in X , Y and Z The maximum displacement allowed in the direction;

[0055] C X , C Y and C Z Respectively represent the infrastructure structure in X , Y and Z The maximum inclination value allowed in a direction.

[0056] Preferably, the step of evaluating the safety status of the infrastructure structure according to the structural safety evaluation model and the infrastructure structure safety index comprises:

[0057] The infrastructure structural safety indicators are used as inputs and fed into the structural safety assessment model;

[0058] The input infrastructure structure safety index is calculated using the expression of the structural safety assessment model;

[0059] If the calculation result of any item does not satisfy the expression of the structural safety assessment model, it means that the infrastructure structure is not in a safe state; otherwise, it means that the infrastructure structure is in a safe state.

[0060] According to another embodiment of the present invention, an integrated lightweight infrastructure structure safety monitoring system is provided, the integrated lightweight infrastructure structure safety monitoring system comprising: a data sensing unit, a data processing unit and a data transmission unit;

[0061] The data sensing unit is used to obtain state sensing data of the infrastructure structure through a sensing sensor;

[0062] The data processing unit is used to determine the safety status of the infrastructure structure based on the status perception data of the infrastructure structure;

[0063] The data transmission unit is used to transmit the security status judgment result of the infrastructure structure to the network switch through the communication protocol.

[0064] The beneficial effects of the present invention are:

[0065] 1. The present invention combines the four dimensions of speed, displacement, acceleration and inclination to evaluate the structural safety status, thereby avoiding the storage of a large amount of redundant data in the server or cloud platform, thereby solving the problem of the large variety of current infrastructure structure monitoring sensors and avoiding the lack of unified interface communication standards for sensors and collectors from different manufacturers.

[0066] 2. The present invention uses velocity sensors as raw data, and calculates the displacement, acceleration, inclination and other safety indicators of the infrastructure structure through algorithms, thereby embodying the characteristics of integrated hardware and software and lightweight. It not only avoids a large amount of hardware deployment, but also greatly reduces the equipment cost and project installation and deployment cost, which is conducive to the large-scale promotion and standardization of integrated lightweight infrastructure structure safety monitoring systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0068] Figure 1 is a flow chart of an integrated lightweight infrastructure structure safety monitoring method according to an embodiment of the present invention;

[0069] Figure 2is a principle block diagram of an integrated lightweight infrastructure structure safety monitoring system according to an embodiment of the present invention;

[0070] Figure 3 is a schematic diagram of the software structure of an integrated lightweight infrastructure structure safety monitoring system according to an embodiment of the present invention;

[0071] Figure 4 is a structural schematic diagram of an integrated lightweight infrastructure structure safety monitoring system according to an embodiment of the present invention when monitoring a beam bridge;

[0072] Figure 5 It is a structural schematic diagram of a beam bridge monitored by a traditional scheme in an integrated lightweight infrastructure structure safety monitoring method according to an embodiment of the present invention.

[0073] In the figure:

[0074] 1. Data sensing unit; 2. Data processing unit; 3. Data transmission unit. DETAILED DESCRIPTION

[0075] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0076] According to an embodiment of the present invention, an integrated lightweight infrastructure structure safety monitoring method is provided.

[0077] The present invention is further described with reference to the accompanying drawings and specific embodiments. Figure 1 As shown, according to one embodiment of the present invention, an integrated lightweight infrastructure structure safety monitoring method is provided, and the integrated lightweight infrastructure structure safety monitoring method includes the following steps:

[0078] S1, obtain the state perception data of the infrastructure structure through perception sensors;

[0079] It should be noted that the perception sensor is a speed sensor, and the data sampling rate of the speed sensor is set to 0.1 milliseconds / time, and the state perception data of the infrastructure structure obtained by the speed sensor is speed data.

[0080] S2, judging the safety status of the infrastructure structure based on the status perception data of the infrastructure structure;

[0081] As a preferred implementation, the following steps are performed to determine the safety status of the infrastructure structure based on the status perception data of the infrastructure structure:

[0082] S21. Calculating infrastructure structure safety indicators based on the state perception data of the infrastructure structure;

[0083] It should be noted that the calculation of the infrastructure structure safety index based on the state perception data of the infrastructure structure includes:

[0084] Calculate acceleration data and displacement change data of the infrastructure structure respectively according to the state perception data of the infrastructure structure;

[0085] Specifically, the acceleration data calculation formula of the infrastructure structure is:

[0086] A ( t 0)= dV ( t 0) / dt 0;

[0087] In the formula, A ( t 0) indicates that the infrastructure structure is t Acceleration data at time 0;

[0088] dV ( t 0) indicates the change in speed;

[0089] dt 0 represents the change in time;

[0090] V ( t 0) indicates that the infrastructure structure is t Speed ​​at time 0.

[0091] Specifically, the displacement change data calculation formula of the infrastructure structure is:

[0092] ;

[0093] In the formula, Δ S Represents displacement change data of infrastructure structures;

[0094] ∫ represents the integral operation;

[0095] t 0 and t 1 represents the start time and end time of the integration respectively;

[0096] dt Indicates the amount of change over time;

[0097] v Indicates the speed of the infrastructure structure.

[0098] The inclination data of the infrastructure structure are calculated based on the acceleration data of the infrastructure structure.

[0099] Specifically, the calculation formula for calculating the inclination data of the infrastructure structure based on the acceleration data of the infrastructure structure is:

[0100] ;

[0101] ;

[0102] ;

[0103] In the formula, α , β and γ Respectively represent the infrastructure structure in X , Y and Z Directional inclination data;

[0104] A X , A Y and A Z Respectively represent the infrastructure structure in X , Y and Z Acceleration data in direction.

[0105] S22. Construct a structural safety assessment model based on infrastructure structural safety indicators and infrastructure structure status perception data;

[0106] Specifically, the expression of the structural safety assessment model is:

[0107] ;

[0108] ;

[0109] ;

[0110] ;

[0111] ;

[0112] ;

[0113] ;

[0114] ;

[0115] ;

[0116] In the formula, FFT ( V X * A X * S X * α ), FFT ( V Y * A Y * S Y * β )and FFT ( V Z * A Z * S Z * γ ) represent the infrastructure structure in X , Y and Z Fast Fourier transform value of the product of directional velocity data, acceleration data, displacement data and inclination data;

[0117] Δ F Indicates the dynamic value of the natural frequency allowed by the infrastructure structure;

[0118] V X , V Y and V Z Respectively represent the infrastructure structure in X , Y and Z Speed ​​data in direction;

[0119] A X , A Y and A Z Respectively represent the infrastructure structure in X , Y and Z Acceleration data in direction;

[0120] S X , S Y and S Z Respectively represent the infrastructure structure inX , Y and Z Displacement data in direction;

[0121] α , β and γ Respectively represent the infrastructure structure in X , Y and Z Directional inclination data;

[0122] H X , H Y and H Z Respectively represent the infrastructure structure in X , Y and Z The maximum displacement allowed in the direction;

[0123] C X , C Y and C Z Respectively represent the infrastructure structure in X , Y and Z The maximum inclination value allowed in a direction.

[0124] S23. Evaluate the safety status of the infrastructure structure based on the structural safety assessment model and infrastructure structural safety indicators.

[0125] It should be noted that the evaluation of the safety status of the infrastructure structure according to the structural safety evaluation model and the infrastructure structure safety index includes:

[0126] The infrastructure structural safety indicators are used as inputs and fed into the structural safety assessment model;

[0127] The input infrastructure structure safety index is calculated using the expression of the structural safety assessment model;

[0128] If the calculation result of any item does not satisfy the expression of the structural safety assessment model, it means that the infrastructure structure is not in a safe state; otherwise, it means that the infrastructure structure is in a safe state.

[0129] S3. Transmit the security status judgment result of the infrastructure structure to the network switch through the communication protocol.

[0130] like Figure 2-3As shown, according to another embodiment of the present invention, an integrated lightweight infrastructure structure safety monitoring system is provided, the integrated lightweight infrastructure structure safety monitoring system includes: a data sensing unit 1, a data processing unit 2 and a data transmission unit 3;

[0131] The data sensing unit 1 is used to obtain state sensing data of the infrastructure structure through a sensing sensor;

[0132] The data processing unit 2 is used to determine the safety status of the infrastructure structure based on the status perception data of the infrastructure structure;

[0133] The data transmission unit 3 is used to transmit the security status judgment result of the infrastructure structure to the network switch through the communication protocol.

[0134] It should be noted that the communication protocol uses the MQTT (Message Queuing Telemetry Transport, a lightweight, publish / subscribe-based message transmission protocol designed for low-bandwidth, high-latency or unreliable networks) data protocol, which can be output in the form of a standard network port, enabling edge computing and interface unification, greatly reducing system costs, and thus facilitating large-scale promotion. Figure 4 As shown, it is a schematic diagram of the integrated lightweight infrastructure structure safety monitoring system provided by the present invention when performing monitoring. When the present invention performs monitoring, the sensors and equipment required are as follows: 3 perception sensors (speed sensors), 1 network switch, and 1 remote server, which greatly reduces the equipment cost.

[0135] In summary, with the aid of the above technical solution of the present invention, the present invention combines the four dimensions of speed, displacement, acceleration, and inclination to evaluate the structural safety status, thereby being able to avoid storing a large amount of redundant data in a server or cloud platform, thereby being able to solve the problem of many types of current infrastructure structure monitoring sensors, and avoiding the lack of a unified interface communication standard for sensors from different manufacturers and collectors from different manufacturers. The present invention uses the velocity sensor as the original data, and calculates the displacement, acceleration, inclination and other safety indicators of the infrastructure structure through an algorithm, thereby embodying the characteristics of software and hardware integration and lightweight, not only avoiding a large amount of hardware deployment, but also greatly reducing the equipment cost and project installation and deployment cost, which is conducive to the large-scale promotion and standardization of the integrated lightweight infrastructure structure safety monitoring system.

[0136] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program code.

[0137] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated lightweight infrastructure structure safety monitoring method, characterized in that: The integrated lightweight infrastructure structure safety monitoring method comprises the following steps: S1, obtain the state perception data of the infrastructure structure through perception sensors; S2, judging the safety status of the infrastructure structure based on the status perception data of the infrastructure structure; S3, transmitting the security status judgment result of the infrastructure structure to the network switch through the communication protocol; The perception sensor is a speed sensor, and the data sampling rate of the speed sensor is set to 0.1 milliseconds / time, and the state perception data of the infrastructure structure obtained by the speed sensor is speed data; Determining the safety status of the infrastructure structure according to the status perception data of the infrastructure structure comprises the following steps: S21. Calculating infrastructure structure safety indicators based on the state perception data of the infrastructure structure; S22. Construct a structural safety assessment model based on infrastructure structural safety indicators and infrastructure structure status perception data; S23. Evaluate the safety status of infrastructure structures based on the structural safety assessment model and infrastructure structural safety indicators; The expression of the structural safety assessment model is: ; ; ; ; ; ; ; ; ; In the formula, FFT ( V X * A X * S X * α ), FFT ( V Y * A Y * S Y * β )and FFT ( V Z * A Z * S Z * γ ) represent the infrastructure structure in X , Y and Z Fast Fourier transform value of the product of velocity data, acceleration data, displacement data and inclination data in the direction; Δ F Indicates the dynamic value of the natural frequency allowed by the infrastructure structure; V X , V Y and V Z Respectively represent the infrastructure structure in X , Y and Z Speed ​​data in direction; A X , A Y and A Z Respectively represent the infrastructure structure in X , Y and Z Acceleration data in direction; S X , S Y and S Z Respectively represent the infrastructure structure in X , Y and Z Displacement data in direction; α , β and γ Respectively represent the infrastructure structure in X , Y and Z Directional inclination data; H X , H Y and H Z Respectively represent the infrastructure structure in X , Y and Z The maximum displacement allowed in the direction; C X , C Y and C Z Respectively represent the infrastructure structure in X , Y and Z The maximum inclination angle allowed in the direction; The evaluation of the safety status of the infrastructure structure according to the structural safety evaluation model and the infrastructure structure safety index includes: The infrastructure structural safety indicators are used as inputs and fed into the structural safety assessment model; The input infrastructure structure safety index is calculated using the expression of the structural safety assessment model; If the calculation result of any item does not satisfy the expression of the structural safety assessment model, it means that the infrastructure structure is not in a safe state; otherwise, it means that the infrastructure structure is in a safe state.

2. The integrated lightweight infrastructure structure safety monitoring method according to claim 1 is characterized in that: Calculating the infrastructure structure safety index according to the state perception data of the infrastructure structure includes: Calculate acceleration data and displacement change data of the infrastructure structure respectively according to the state perception data of the infrastructure structure; The inclination data of the infrastructure structure are calculated based on the acceleration data of the infrastructure structure.

3. The integrated lightweight infrastructure structure safety monitoring method according to claim 2 is characterized in that: The acceleration data calculation formula of the infrastructure structure is: ; In the formula, A ( t 0) indicates that the infrastructure structure is t Acceleration data at time 0; dV ( t 0) indicates the change in speed; dt 0 represents the change in time; V ( t 0) indicates that the infrastructure structure is t Speed ​​at time 0.

4. The integrated lightweight infrastructure structure safety monitoring method according to claim 3 is characterized in that: The displacement change data calculation formula of the infrastructure structure is: ; In the formula, Δ S Represents displacement change data of infrastructure structures; ∫ represents integral operation; t 0 and t 1 represents the start time and end time of the integration respectively; dt Indicates the amount of change over time; v Indicates the speed of the infrastructure structure.

5. The integrated lightweight infrastructure structure safety monitoring method according to claim 4 is characterized in that: The calculation formula for calculating the inclination data of the infrastructure structure based on the acceleration data of the infrastructure structure is: ; ; ; In the formula, α , β and γ Respectively represent the infrastructure structure in X , Y and Z Directional inclination data; A X , A Y and A Z Respectively represent the infrastructure structure in X , Y and Z Acceleration data in direction.

6. An integrated lightweight infrastructure structure safety monitoring system, used to implement the integrated lightweight infrastructure structure safety monitoring method according to any one of claims 1 to 5, characterized in that: The integrated lightweight infrastructure structure safety monitoring system includes: a data sensing unit, a data processing unit and a data transmission unit; The data sensing unit is used to obtain state sensing data of the infrastructure structure through a sensing sensor; The data processing unit is used to determine the safety status of the infrastructure structure based on the status perception data of the infrastructure structure; The data transmission unit is used to transmit the security status judgment result of the infrastructure structure to the network switch through the communication protocol.

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