CN109443433B - Wireless monitoring system for damage of high tower building structure - Google Patents
Wireless monitoring system for damage of high tower building structure Download PDFInfo
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- CN109443433B CN109443433B CN201811327049.2A CN201811327049A CN109443433B CN 109443433 B CN109443433 B CN 109443433B CN 201811327049 A CN201811327049 A CN 201811327049A CN 109443433 B CN109443433 B CN 109443433B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
Abstract
The invention provides a wireless monitoring system for damage of a high tower building structure, which comprises: the structure monitoring module is used for acquiring sensing data of the high-tower building structure and sending the sensing data of the high-tower building structure to the data preprocessing module; the data preprocessing module is used for marking the sensing data of the high-tower building structure by using the corresponding basic building information, then sending the marking data to the database for storage, and sending the marked sensing data of the high-tower building structure to the data analysis module; the data analysis module is used for storing internal stress data, acceleration data, settlement parameters, displacement parameters, inclination parameters and crack parameters under various building potential safety hazards; the data display module is used for comparing the similarity between the sensing data of the high-tower building structure and the stored data, and sending the comparison results to the data display module in a form of a table after the comparison results are sorted in an ascending order or a descending order according to the similarity; and the data display module is used for displaying the comparison result.
Description
Technical Field
The invention relates to the technical field of building monitoring, in particular to a wireless monitoring system for damage of a high-tower building structure.
Background
High tower buildings comprise wind energy super high towers, cooling towers, ancient towers and the like, and the health conditions of the high tower buildings are influenced by natural disasters, the design of the self building structures and maintenance, so that the high tower buildings need to be monitored structurally. At present, monitoring of high tower building structures is often performed periodically by monitoring personnel through methods such as visual inspection, emission spectroscopy, acoustic emission, rebound resilience, leakage testing, pulse echo, and ray methods. The following disadvantages prevail:
1. the data integrity is poor, only the local characteristics of the structure are monitored, and the relevance among the data cannot be realized;
2. the detected data are static data, what the development condition of the later building stage is, and the potential safety hazard caused by the deformation data can not be subjected to predictive analysis;
3. the real-time performance is poor, the current state of the building structure can be known only through post-processing, the real-time monitoring cannot be realized, and the efficiency is low.
Disclosure of Invention
Aiming at the problems, the invention provides a wireless monitoring system for the structural damage of a high tower building.
The purpose of the invention is realized by adopting the following technical scheme:
the utility model provides a high tower class building structure damage wireless monitoring system, this system includes:
the structure monitoring module is used for acquiring sensing data of the high-tower building structure and sending the sensing data of the high-tower building structure to the data preprocessing module, wherein the sensing data of the high-tower building structure comprises building internal stress data, acceleration data, building settlement parameters, displacement parameters, inclination parameters and crack parameter data; the structure monitoring module comprises a sink node and a plurality of sensor nodes for collecting sensing data of the high-tower building structure, the sensor nodes are deployed in a set monitoring area, and the sink node is mainly used for collecting the sensing data of the high-tower building structure sent by each sensor node and sending the data to the data preprocessing module;
the data preprocessing module is used for marking the sensing data of the high-tower building structure by using the corresponding basic building information, then sending the marking data to the database for storage, and sending the marked sensing data of the high-tower building structure to the data analysis module;
the data analysis module is used for storing internal stress data, acceleration data, settlement parameters, displacement parameters, inclination parameters and crack parameters under various building potential safety hazards; the data display module is used for comparing the similarity between the sensing data of the high-tower building structure and the stored data, and sending the comparison results to the data display module in a form of a table after the comparison results are sorted in an ascending order or a descending order according to the similarity;
and the data display module is used for displaying the comparison result.
Preferably, the sensor node comprises a sensor and a signal adapter for converting a sensor signal into sensing data of a corresponding high-tower building structure, and the signal adapter is connected with the sensor; the device also comprises a controller used for controlling the acquisition frequency, wherein the controller is connected with the sensor.
The data display module comprises any one or more of a display screen, a smart phone, a notebook computer and a desktop computer.
The invention has the beneficial effects that: according to the invention, the comprehensive monitoring of the building condition is realized by collecting the internal stress data and the acceleration data of the high-tower building and combining the collection of the settlement parameter, the displacement parameter, the inclination parameter and the crack parameter of the building, the system has a data analysis function, and the analysis of the potential safety hazard of the building can be carried out in real time according to the detected data.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a block diagram illustrating the structure of a wireless monitoring system for damage to a structure of a high-tower building according to an exemplary embodiment of the present invention;
fig. 2 is a block diagram schematically illustrating a structure of a sensor node according to an exemplary embodiment of the present invention.
Reference numerals:
the structure monitoring system comprises a structure monitoring module 1, a data preprocessing module 2, a data analyzing module 3, a data display module 4, a sensor 10, a signal adapter 20 and a controller 30.
Detailed Description
The invention is further described with reference to the following examples.
Referring to fig. 1, an embodiment of the present invention provides a wireless monitoring system for damage to a high tower building structure, where the system includes:
the structure monitoring module 1 is used for acquiring sensing data of the high-tower building structure and sending the sensing data of the high-tower building structure to the data preprocessing module 2, wherein the sensing data of the high-tower building structure comprises building internal stress data, acceleration data, building settlement parameters, displacement parameters, inclination parameters and crack parameter data; the structure monitoring module 1 comprises a sink node and a plurality of sensor nodes for collecting sensing data of the high-tower building structure, the sensor nodes are deployed in a set monitoring area, and the sink node is mainly used for collecting the sensing data of the high-tower building structure sent by each sensor node and sending the data to the data preprocessing module 2;
the data preprocessing module 2 is used for marking the sensing data of the high-tower building structure by using the corresponding basic building information, then sending the marking data to the database for storage, and sending the marked sensing data of the high-tower building structure to the data analysis module 3;
the data analysis module 3 is used for storing internal stress data, acceleration data, settlement parameters, displacement parameters, inclination parameters and crack parameters under various building potential safety hazards; the data display module 4 is used for comparing the similarity between the sensing data of the high-tower building structure and the stored data, sorting the comparison results in an ascending order or a descending order according to the similarity, and sending the sorted comparison results to the data display module 4 in a table form;
and the data display module 4 is used for displaying the comparison result.
As shown in fig. 2, the sensor node includes a sensor 10 and a signal adapter 20 for converting a signal of the sensor 10 into sensing data of a corresponding high-tower building structure, wherein the signal adapter 20 is connected to the sensor 10; a controller 30 for controlling the acquisition frequency is also included, said controller 30 being connected to the sensor 10.
The data display module 4 comprises any one or more of a display screen, a smart phone, a notebook computer and a desktop computer.
According to the embodiment of the invention, the comprehensive monitoring of the building condition is realized by collecting the internal stress data and the acceleration data of the high-tower building and collecting the settlement parameter, the displacement parameter, the inclination parameter and the crack parameter of the building, the system has a data analysis function, and the analysis of the potential safety hazard of the building can be carried out in real time according to the detected data.
In one embodiment, after deployment of the sensor nodes is completed, the monitoring area is divided into a plurality of virtual square grids, and one sensor node closest to the center of each virtual square grid is selected from each virtual square grid to serve as a cluster head node; when the network is initialized, each sensor node selects a cluster head node closest to the sensor node to join a cluster, and clustering is completed; in the sensing data transmission stage of the high-tower building structure, each cluster head node collects the sensing data of the high-tower building structure collected by each sensor node in the cluster, and sends the sensing data of the high-tower building structure to the sink node.
In one embodiment, sensor nodes acquire neighbor node information in the same cluster through information interaction, and a neighbor node set in the same cluster is constructed, wherein the neighbor nodes are located in the communication range of the sensor nodes; in the transmission stage of the sensing data of the high-tower building structure, when the sensor node meets the direct sending condition, the sensor node directly sends the acquired sensing data of the high-tower building structure to the corresponding cluster head node, otherwise, the sensor node selects the nearest neighbor node in the same cluster neighbor node set as the next hop node, and sends the acquired sensing data of the high-tower building structure to the next hop node, wherein the direct sending condition is as follows:
in the formula, QiIs the current remaining energy, Q, of the sensor node iminAt a predetermined lower energy limit, Qi0Is the initial energy of sensor node i, DimaxMaximum communication distance, L (i, CH), that can be set for sensor node ii) For a sensor node i to its corresponding cluster head node CHiS is a preset energy-based attenuation factor, S has a value range of [0.8,0.9 ]]。
In the embodiment, a direct sending condition is set based on the energy of the sensor node, and a better measurement standard is innovatively provided for the routing mode selection from the sensor node to the corresponding cluster head node, namely when the sensor node meets the direct sending condition, the sensor node directly sends the acquired sensing data of the high tower building structure to the corresponding cluster head node, otherwise, the sensor node selects a neighbor node closest to the sensor node in the same cluster neighbor node set as a next hop node. The sensor nodes select a proper routing mode based on the direct sending condition, so that the flexibility of routing among the nodes is improved, the energy consumption of the sensor nodes for sending the sensing data of the high-tower building structure is reduced, and the working time of the sensor nodes is prolonged.
In one embodiment, a sensor node acquires energy of a next hop node and cache information of sensing data of a high tower building structure every a time interval Δ t, and determines whether the next hop node meets a relay condition according to the acquired energy and cache information of the sensing data of the high tower building structure, if not, the sensor node reselects a neighbor node closest to the next hop node as a new next hop node in a cluster of neighbor nodes, where the relay condition is:
in the formula, QixCurrent remaining energy, Q, of the next hop node x for sensor node iminIs a predetermined lower limit of energy, Qix0Is the initial energy, P, of the next hop node xiSensing the number of data packets, P, for the high tower building structure currently acquired by the sensor node iixSensing the number of data packets, Q, for the high tower type building structure in the cache list of the next hop node xTFor the preset energy consumption of forwarding a sensing data packet of a high tower building structure, L (i, x) is the distance from the sensor node i to the next hop node x, PT-xThe number of sensing data packets of the maximum high tower building structure which can be cached by the cache list of the next hop node x, bTFor a predetermined time of transmitting a sensing packet of a high tower type building structure in a unit distance, BTProcessing the time of a sensing data packet of a high tower building structure for preset forwarding, wherein k is a preset time-based influence factor, and the value range of k is [0.9,0.95 ]]；
To determine the value function, when
When the temperature of the water is higher than the set temperature,
when in use
When the temperature of the water is higher than the set temperature,
the energy and the cache queue of the sensor node are both limited, and in the embodiment, based on two factors of the energy of the next hop node and the cache of the sensing data of the high-tower building structure, the relay condition is set innovatively, wherein the sensor node judges whether the next hop node meets the relay condition every other time period delta t, if not, the sensor node is concentrated in the neighbor nodes in the same cluster, and a neighbor node which is closest to the next hop node is reselected as a new next hop node. According to the embodiment, when the next hop node does not meet the requirements of energy and the cache bandwidth of the sensing data of the high-tower building structure, the sensor node of the previous hop can select other neighbor nodes as the next hop, the next hop node is updated, the next hop of the sensor node can always have enough energy to perform the task of forwarding the sensing data of the high-tower building structure, the probability of congestion of the sensor node is effectively reduced, and better service quality is provided for the sensing data of the high-tower building structure to be transmitted from the sensor node to the corresponding cluster head node.
In one embodiment, when the distance between the cluster head node and the sink node does not exceed the set lower distance limit, the cluster head node directly sends the collected sensing data of the high-tower building structure to the sink node; when the distance between the cluster head node and the sink node exceeds a set distance lower limit, the cluster head node indirectly sends the collected sensing data of the high-tower building structure to the sink node;
wherein, the indirectly sending to the sink node includes:
(1) the cluster head node acquires information of other cluster head nodes in a communication range, and the other cluster head nodes are used as alternative nodes to construct an alternative node set;
(2) the cluster head node periodically performs information interaction with the alternative nodes according to a set period, obtains the energy of the alternative nodes and the cache information of the sensing data of the high-tower building structure, calculates the priority value of each alternative node in the alternative node set according to the energy of the alternative nodes and the cache information of the sensing data of the high-tower building structure, further selects the alternative node with the largest priority value as a next-hop node, and sends the collected sensing data of the high-tower building structure to the next-hop node, wherein the calculation formula of the priority value is as follows:
in the formula, VIJPriority value, Q, of the J-th candidate node representing cluster head node IIJIs the current remaining energy, P, of the J-th candidate nodeIJSensing the number of data packets, Q, of the high tower type building structure in the cache list of the J-th candidate nodeTEnergy consumption, Q, for predetermined forwarding of sensing data packets of a high tower building structureminAt a predetermined lower energy limit, Z (Q)IJ-PIJ×QT-Qmin) To judge the function, when QIJ-PIJ×QT-QminWhen not less than 0, Z (Q)IJ-PIJ×QT-Qmin) When Q is equal to 1IJ-PIJ×QT-QminWhen < 0, Z (Q)IJ-PIJ×QT-Qmin) 0; l (I, o) is the distance from a cluster head node I to a sink node, L (J, o) is the distance from the J-th candidate node to the sink node, AIJThe number of times of serving the J-th candidate node as the next hop node of the cluster head node I, w is a preset attenuation coefficient, and the value range of w is [0.95,0.98 ]]，y1、y2Is a set weight coefficient and satisfies y1＞y2，y1+y2＝1。
In this embodiment, an index of the priority value is set, and according to a calculation formula of the priority value, it can be known that a candidate node which has larger current remaining energy, better position advantage, and fewer times of serving as a next hop node has a larger priority value.
In this embodiment, the cluster head node selects the candidate node with the largest priority value in the candidate node set as the next hop node, which is favorable for guaranteeing the forwarding of the sensing data of the high-tower building structure, saving the energy consumption of the forwarding of the sensing data of the high-tower building structure, balancing the energy consumption of each cluster head node, and further favorable for prolonging the service life of the wireless sensor network.
From the above description of embodiments, it is clear for a person skilled in the art that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code or any appropriate combination thereof. For a hardware implementation, a processor may be implemented in one or more of the following units: an application specific integrated circuit, a digital signal processor, a digital signal processing device, a programmable logic device, a field programmable gate array, a processor, a controller, a microcontroller, a microprocessor, other electronic units designed to perform the functions described herein, or a combination thereof. For a software implementation, some or all of the procedures of an embodiment may be performed by a computer program instructing associated hardware. In practice, the program may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. The computer-readable medium can include, but is not limited to, random access memory, read only memory images, electrically erasable programmable read only memory or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. High tower class building structure damage wireless monitoring system, characterized by includes:
the structure monitoring module is used for acquiring sensing data of the high-tower building structure and sending the sensing data of the high-tower building structure to the data preprocessing module, wherein the sensing data of the high-tower building structure comprises building internal stress data, acceleration data, building settlement parameters, displacement parameters, inclination parameters and crack parameter data; the structure monitoring module comprises a sink node and a plurality of sensor nodes for collecting sensing data of the high-tower building structure, the sensor nodes are deployed in a set monitoring area, and the sink node is mainly used for collecting the sensing data of the high-tower building structure sent by each sensor node and sending the data to the data preprocessing module;
the data preprocessing module is used for marking the sensing data of the high-tower building structure by using the corresponding basic building information, then sending the marking data to the database for storage, and sending the marked sensing data of the high-tower building structure to the data analysis module;
the data analysis module is used for storing internal stress data, acceleration data, settlement parameters, displacement parameters, inclination parameters and crack parameters under various building potential safety hazards; the data display module is used for comparing the similarity between the sensing data of the high-tower building structure and the stored data, and sending the comparison results to the data display module in a form of a table after the comparison results are sorted in an ascending order or a descending order according to the similarity;
the data display module is used for displaying the comparison result;
after deploying the sensor nodes, dividing the monitoring area into a plurality of virtual square grids, and selecting a sensor node closest to the center of each virtual square grid as a cluster head node; when the network is initialized, each sensor node selects a cluster head node closest to the sensor node to join a cluster, and clustering is completed; when the distance between the cluster head node and the sink node does not exceed the set distance lower limit, the cluster head node directly sends the collected sensing data of the high-tower building structure to the sink node; when the distance between the cluster head node and the sink node exceeds a set distance lower limit, the cluster head node indirectly sends the collected sensing data of the high-tower building structure to the sink node;
wherein, the indirectly sending to the sink node includes:
(1) the cluster head node acquires information of other cluster head nodes in a communication range, and the other cluster head nodes are used as alternative nodes to construct an alternative node set;
(2) the cluster head node periodically performs information interaction with the alternative nodes according to a set period, obtains the energy of the alternative nodes and the cache information of the sensing data of the high-tower building structure, calculates the priority value of each alternative node in the alternative node set according to the energy of the alternative nodes and the cache information of the sensing data of the high-tower building structure, further selects the alternative node with the largest priority value as a next-hop node, and sends the collected sensing data of the high-tower building structure to the next-hop node, wherein the calculation formula of the priority value is as follows:
in the formula, VIJPriority value, Q, of the J-th candidate node representing cluster head node IIJIs the current remaining energy, P, of the J-th candidate nodeIJSensing the number of data packets, Q, of the high tower type building structure in the cache list of the J-th candidate nodeTEnergy consumption, Q, for predetermined forwarding of sensing data packets of a high tower building structureminAt a predetermined lower energy limit, Z (Q)IJ-PIJ×QT-Qmin) To judge the function, when QIJ-PIJ×QT-QminWhen not less than 0, Z (Q)IJ-PIJ×QT-Qmin) When Q is equal to 1IJ-PIJ×QT-Qmin<At 0, Z (Q)IJ-PIJ×QT-Qmin)＝0；L (I, o) is the distance from a cluster head node I to a sink node, L (J, o) is the distance from the J-th candidate node to the sink node, AIJThe number of times of serving the J-th candidate node as the next hop node of the cluster head node I, w is a preset attenuation coefficient, and the value range of w is [0.95,0.98 ]]，y1、y2Is a set weight coefficient and satisfies y1>y2，y1+y2＝1。
2. The system according to claim 1, wherein in the stage of transmitting the sensing data of the high-tower building structure, each cluster head node collects the sensing data of the high-tower building structure collected by each sensor node in the cluster and transmits the sensing data of the high-tower building structure to the sink node; the sensor nodes acquire neighbor node information in the same cluster through information interaction, and a neighbor node set in the same cluster is constructed, wherein the neighbor nodes are positioned in the communication range of the sensor nodes; in the transmission stage of the sensing data of the high-tower building structure, when the sensor node meets the direct sending condition, the sensor node directly sends the acquired sensing data of the high-tower building structure to the corresponding cluster head node, otherwise, the sensor node selects the nearest neighbor node in the same cluster neighbor node set as the next hop node, and sends the acquired sensing data of the high-tower building structure to the next hop node, wherein the direct sending condition is as follows:
in the formula, QiIs the current remaining energy, Q, of the sensor node iminAt a predetermined lower energy limit, Qi0Is the initial energy of sensor node i, DimaxMaximum communication distance, L (i, CH), that can be set for sensor node ii) For a sensor node i to its corresponding cluster head node CHiS is a preset energy-based attenuation factor, S has a value range of [0.8,0.9 ]]。
3. The system as claimed in claim 2, wherein the sensor node comprises a sensor and a signal adapter for converting sensor signals into corresponding sensed data of the high tower building structure, and the signal adapter is connected to the sensor.
4. The system of claim 3, wherein the sensor node further comprises a controller for controlling the acquisition frequency, and the controller is connected to the sensor.
5. The system for wirelessly monitoring damage to a high tower building structure according to any one of claims 2 to 4, wherein the data display module comprises any one or more of a display screen, a smart phone, a notebook computer, and a desktop computer.
6. The system according to claim 2, wherein the sensor node acquires energy of a next hop node and cache information of the sensed data of the high tower building structure at intervals of a time period Δ t, and determines whether the next hop node meets a relay condition according to the acquired energy and cache information of the sensed data of the high tower building structure, and if not, the sensor node is concentrated in neighbor nodes in the same cluster, and reselects a neighbor node closest to the next hop node as a new next hop node, and the relay condition is:
in the formula, QixCurrent remaining energy, Q, of the next hop node x for sensor node iminAt a predetermined lower energy limit, Qix0Is the initial energy, P, of the next hop node xiSensing data packet of high tower building structure currently acquired by sensor node iNumber, PixSensing the number of data packets, Q, for the high tower type building structure in the cache list of the next hop node xTFor the preset energy consumption of forwarding a sensing data packet of a high tower building structure, L (i, x) is the distance from the sensor node i to the next hop node x, PT-xThe number of sensing data packets of the maximum high tower building structure which can be cached by the cache list of the next hop node x, bTFor a predetermined time of transmitting a sensing packet of a high tower type building structure in a unit distance, BTProcessing the time of a sensing data packet of a high tower building structure for preset forwarding, wherein k is a preset time-based influence factor, and the value range of k is [0.9,0.95 ]]；
To determine the value function, when
When the temperature of the water is higher than the set temperature,
when in use
When the temperature of the water is higher than the set temperature,
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