CN109377045A - Large-scale retaining dam structural damage wisdom monitors system - Google Patents
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- CN109377045A CN109377045A CN201811211033.5A CN201811211033A CN109377045A CN 109377045 A CN109377045 A CN 109377045A CN 201811211033 A CN201811211033 A CN 201811211033A CN 109377045 A CN109377045 A CN 109377045A
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- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/12—Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
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Abstract
The invention discloses large-scale retaining dam structural damage wisdom to monitor system, including monitoring subsystem, storage subsystem and server；The monitoring subsystem is used to acquire the vibration data of retaining dam critical positions；The vibration data of the monitoring subsystem acquisition is transferred to the server and storage subsystem, and the storage subsystem is configured as storing the vibration data；The server handles the vibration data, obtains the vibration displacement curve at different location, by the analysis to the vibration displacement curve, realizes the monitoring to the retaining dam structural damage.
Description
Technical field
The present invention relates to water conservancy and hydropower intellectual monitoring fields, and in particular to large-scale retaining dam structural damage wisdom monitoring system
System.
Background technique
In the related technology, for the monitoring of retaining dam be mainly deformation monitoring, seepage flow and seepage pressure monitoring, ess-strain monitoring,
The monitoring of gap opening degree and temperature monitoring etc..Above-mentioned monitoring is essentially static or quasi-static monitoring, for dam shoulder stability and
The global displacement of dam body, what static method was still applicable in, but the strain of the internal stress for reflecting retaining dam arching condition, gap
The case where opening degree, static monitoring techniques are difficult to hold the transient change and evolution process at any time of retaining dam working condition, and block
Arching failure caused by the instantaneous arching failure of dam and crack cumulative effect can threaten the safe operation of retaining dam.
Summary of the invention
To solve the above problems, the present invention is intended to provide large-scale retaining dam structural damage wisdom monitors system.
The purpose of the present invention is realized using following technical scheme:
Large-scale retaining dam structural damage wisdom monitors system, including monitoring subsystem, storage subsystem and server；It is described
Monitoring subsystem be used to acquire the vibration datas of retaining dam critical positions；The vibration data transmission of the monitoring subsystem acquisition
To the server and storage subsystem, the storage subsystem is configured as storing the vibration data；The server pair
The vibration data is handled, and the vibration displacement curve at different location is obtained, by dividing the vibration displacement curve
The monitoring to the retaining dam structural damage is realized in analysis.
The invention has the benefit that water is blocked in discovery in time by setting monitoring subsystem, storage subsystem and server
The issuable damage in dam, rapidly finds out damage position, and to be repaired and reinforced using various engineering measures, and this is
System has the characteristics that form is simple, easy for construction, easy to maintain, project cost is low, operational management is convenient, and when operation can be realized far
Process control.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is that the structure of the retaining dam monitoring system for hydraulic and hydroelectric engineering of an illustrative embodiment of the invention is shown
It is intended to.
Fig. 2 is the unit connection schematic diagram of the server of an illustrative embodiment of the invention.
Appended drawing reference:
Monitoring subsystem 1, storage subsystem 2, server 3, pretreatment unit 31, analytical unit 32, health evaluating unit
33, data display unit 34.
Specific embodiment
The invention will be further described with the following Examples.
Referring to Fig. 1, Fig. 2, the embodiment of the invention provides the retaining dam monitoring systems for hydraulic and hydroelectric engineering, including prison
Survey subsystem 1, storage subsystem 2 and server 3；The monitoring subsystem 1 is used to acquire the vibration of retaining dam critical positions
Data；The vibration data that the monitoring subsystem 1 acquires is transferred to storage subsystem 2 and is stored, and is sent to the clothes
Business device 3.
The server 3 handles the vibration data, the vibration displacement curve at different location is obtained, by right
The monitoring to the retaining dam structural damage is realized in the analysis of the vibration displacement curve.
The above embodiment of the present invention is by setting monitoring subsystem 1, storage subsystem 2 and server 3, and discovery is blocked in time
The issuable damage of dam, rapidly finds out damage position, to be repaired and reinforced using various engineering measures, and should
System has the characteristics that form is simple, easy for construction, easy to maintain, project cost is low, operational management is convenient, and when operation can be realized
Long-range control.
The present invention acquires vibration data by wireless sensor network, and without wiring, and monitoring is convenient in real time.
Preferably, the critical positions include retaining dam monolith, construction transverse joint, table hole, mesoporous, crown, vault subsidence, 1/4
Crown axial location beam and 3/4 crown axial location beam.Further, the critical positions further include the 1/8 of the crown
The downstream dam facing of axial location, 3/8 axial location, 5/8 axial location and the corresponding retaining dam monolith central point of 7/8 axial location.
This preferred embodiment sets the critical positions for needing the retaining dam monitored, makes monitoring with more relativity.
Preferably, the server 3 includes sequentially connected pretreatment unit 31, analytical unit 32, health evaluating unit
33 and data display unit 34, the pretreatment unit 31 is for pre-processing vibration data；The analytical unit 32 is used
In pretreated vibration data is analyzed and handled, to obtain the vibration displacement curve of retaining dam critical positions；It is described
Health evaluating unit 33 is used to carry out health analysis to the vibration displacement curve and judges the vibration position of retaining dam critical positions
It moves and whether is in health status, export retaining dam critical positions health status result；The data display unit 34 is for showing
The retaining dam critical positions health status result.
This preferred embodiment constructs the unit structure of server 3.
Wherein, the monitoring subsystem 1 includes the single aggregation node being deployed in monitoring region, multiple sensor sections
Point, wherein sensor node is specifically located at each critical positions of retaining dam, and sensor node acquires the vibration number of monitored position
According to and be sent to aggregation node, and then vibration data is sent to storage subsystem 2 and server 3 by aggregation node.
In a kind of mode that can be realized, when netinit, sensor node receives the broadcast message of aggregation node,
Network flood is carried out by broadcast message, sensor node adds all neighbor nodes to the neighbor table of itself, and wherein neighbours save
Point is the other sensors node in sensor node communication range；Vibration data transmit the stage, sensor node with
The distance of aggregation node be single-hop apart from when, the vibration data of acquisition is directly sent to aggregation node, sensor node and is converged
The distance of poly- node be not single-hop apart from when, the vibration data of acquisition is sent to convergence by way of multi-hop by sensor node
Node.
In one embodiment, sensor node obtains the related of each neighbor node in neighbor table by information exchange and believes
Breath, the relevant information includes the hop count to aggregation node, current remaining, primary power；
If the hop count of sensor node i to aggregation node is ui, sensor node i is by way of multi-hop by the vibration of acquisition
When dynamic data are sent to aggregation node, sensor node i calculates the weight of each neighbor node in its neighbor table, and weight is greater than
0 neighbor node alternately relay node, constructs alternative relay node list and regularly updates；
When the number of alternative relay node is 0 and sensor node i has and uiWhen the neighbor node of same number of hops, sensing
Device node i with uiSelect the highest neighbor node of current remaining as next-hop in the neighbor node of same number of hops；
When alternative relay node number be 0 and sensor node i without and uiWhen the neighbor node of same number of hops, sensing
Device node abandons the vibration data of acquisition；
When the number of alternative relay node is not 0, sensor node i is randomly choosed under an alternative relay node conduct
One jumps；
Wherein, the calculation formula of weight is set are as follows:
In formula, uijFor hop count of j-th of neighbor node to aggregation node of sensor node i, KijIt is adjacent for described j-th
Occupy the current remaining of node, Kie0For the current remaining of e-th of neighbor node of sensor node i, niFor sensor
The neighbor node quantity of node i, KminFor preset minimum energy value；For value function, meet:
WhenWhen,
WhenWhen,
Wherein, alternative relay node list regularly updates, specifically: periodically calculate the weight of alternative relay node, it will
Alternative relay node information of the calculated weight less than 0 is deleted from alternative relay node list.
The present embodiment proposes a kind of new Routing Protocol, and sensor node is according to the Routing Protocol by the vibration number of acquisition
According to being sent to aggregation node.The Routing Protocol is simple, and expansion is strong, wherein and the present embodiment proposes the calculation formula of weight, and
Neighbor node alternately relay node by weight greater than 0 so that sensor node according to the quantity of alternative relay node come
Suitable next-hop relay node is selected, the energy for advantageously allowing all the sensors node in network can be according to approximate phase
Same ratio reduces, the life cycle of further prolonging wireless sensor network.
In one embodiment, when initial, sensor node is set to the degree of belief of its next-hop as 1, every to pass through one
Period Δ T, sensor node and its next-hop carry out information exchange, obtain the energy information and energy information of the next-hop
Feedback time, and according to the information update of acquisition to the degree of belief of its next-hop, letter of the degree of belief lower than setting after update
When appointing degree lower limit, sensor node reselects next-hop；
Wherein set the more new formula of degree of belief are as follows:
In formula, Yia(f) degree of belief to its next-hop a that sensor node i updates after f-th of period Δ T is indicated,
Yia(f-1) degree of belief to its next-hop a that sensor node i updates after the f-1 period Δ T, Δ K are indicatedminIt is pre-
If unit interval energy consumption lower limit, KmaxFor preset Energy maximum value, KminFor preset energy-minimum, TiaFor next-hop
Time of a to sensor node i feedback energy information, TminFor preset feedback time lower limit, s1For the degree of belief based on energy
Decay factor, s2For the degree of belief decay factor based on feedback velocity, s1∈(0.1,0.2],s2∈(0.05,0.1]。
The present embodiment is based on two aspect factor of energy and feedback velocity, innovatively proposes the more new formula of degree of belief,
The more new formula can preferably reflect the influence of energy attenuation and feedback velocity to degree of belief.Sensor node is based on the time
Passage constantly update its degree of belief to next-hop node, have certain robustness.It is updated according to the more new formula next
The degree of belief of hop node is beneficial to promote sensor node selection energy consumption rate smaller and the higher neighbor node of response speed
It as next-hop, and then avoids undertaking the next-hop node rapid failure of relay task, and effectively improves vibration data forwarding
Rate further increases the reliability that vibration data is transmitted to aggregation node.
In one embodiment, sensor node periodically calculates its communication distance threshold value according to current remaining, works as meter
When the communication distance threshold value of calculation is less than it at a distance from upper hop sensor node, sensor node upper hop sensor node
Information is sent, so that upper hop sensor node reselects next-hop；
Wherein, the calculation formula of communication distance threshold value is set are as follows:
In formula, Di(t) the communication distance threshold value calculated for sensor node i t-th of period,For sensor node
The adjustable maximum communication distance of i,For the adjustable minimal communications distance of sensor node i, KiFor sensor node i's
Current remaining, Ki0For the primary power of sensor node i, h is preset regulatory factor, the value range of h be [0.85,
0.95]。
Sensor node periodically calculates its communication distance threshold value according to current remaining in the present embodiment, when leading to for calculating
When communication distance threshold value is less than it at a distance from upper hop sensor node, sensor node upper hop sensor node sends letter
Breath, so that upper hop sensor node reselects next-hop, wherein the current remaining according to sensor node is set
The setting formula of communication distance threshold value.The present embodiment is by allowing the lower sensor node of energy to avoid undertaking appointing for relay forwarding
Business advantageously reduces the rate of sensor node consumption energy, avoids sensor node rapid failure, effectively extend sensor
The duty cycle of node ensures the stability that vibration data is collected, thus for the analysis of subsequent large-scale retaining dam structural damage
Establish good data basis.
Through the above description of the embodiments, those skilled in the art can be understood that it should be appreciated that can
To realize the embodiments described herein with hardware, software, firmware, middleware, code or its any appropriate combination.For hardware
It realizes, processor can be realized in one or more the following units: specific integrated circuit, digital signal processor, number letter
Number processing equipment, field programmable gate array, processor, controller, microcontroller, microprocessor, is set programmable logic device
Count other electronic units or combinations thereof for realizing functions described herein.For software implementations, the part of embodiment or complete
Portion's process can instruct relevant hardware to complete by computer program.When realization, above procedure can be stored in meter
It instructs in calculation machine readable medium or as the one or more on computer-readable medium or code is transmitted.It is computer-readable
Medium includes computer storage media and communication media, and wherein communication media includes convenient for passing from a place to another place
Send any medium of computer program.Storage medium can be any usable medium that computer can access.It is computer-readable
Medium can include but is not limited to random access memory, read-only memory mirror image, band Electrically Erasable Programmable Read-Only Memory or its
His optical disc storage, magnetic disk storage medium or other magnetic storage apparatus or it can be used in carrying or storing that there is instruction or number
According to structure type desired program code and can be by any other medium of computer access.
Finally it should be noted that use above scene is merely illustrative of the technical solution of the present invention, rather than to the present invention
The limitation of protection scope, although being explained in detail referring to preferred application scene to the present invention, the ordinary skill people of this field
Member is it should be appreciated that can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from technical solution of the present invention
Spirit and scope.
Claims (6)
1. large-scale retaining dam structural damage wisdom monitors system, characterized in that including monitoring subsystem, storage subsystem and service
Device；The monitoring subsystem is used to acquire the vibration data of retaining dam critical positions；The vibration of the monitoring subsystem acquisition
Data are transferred to the server and storage subsystem, and the storage subsystem is configured as storing the vibration data；It is described
Server handles the vibration data, obtains the vibration displacement curve at different location, by the vibration displacement
The monitoring to the retaining dam structural damage is realized in the analysis of curve.
2. large size retaining dam structural damage wisdom according to claim 1 monitors system, characterized in that the critical positions
Including retaining dam monolith, construction transverse joint, table hole, mesoporous, crown, vault subsidence, 1/4 crown axial location beam and 3/4 crown axis
Position beam.
3. large size retaining dam structural damage wisdom according to claim 2 monitors system, characterized in that the critical positions
It further include 1/8 axial location in the crown, 3/8 axial location, 5/8 axial location and the corresponding retaining dam of 7/8 axial location
The downstream dam facing of monolith central point.
4. large size retaining dam structural damage wisdom according to claim 1 monitors system, characterized in that the server packet
Sequentially connected pretreatment unit, analytical unit, health evaluating unit and data display unit are included, the pretreatment unit is used for
Vibration data is pre-processed；The analytical unit is for being analyzed and being handled to pretreated vibration data, to obtain
To the vibration displacement curve of retaining dam critical positions；The health evaluating unit is used to carry out health to the vibration displacement curve
It analyzes and judges whether the vibration displacement of retaining dam critical positions is in health status, export retaining dam critical positions health status
As a result；The data display unit is for showing the retaining dam critical positions health status result.
5. large size retaining dam structural damage wisdom according to claim 1 monitors system, characterized in that the monitoring subsystem
System includes the single aggregation node being deployed in monitoring region, multiple sensor nodes, and wherein sensor node is specifically located at
Each critical positions of retaining dam, sensor node acquire the vibration data of monitored position and are sent to aggregation node, and then by converging
Vibration data is sent to storage subsystem and server by poly- node.
6. large size retaining dam structural damage wisdom according to claim 5 monitors system, characterized in that netinit
When, sensor node receives the broadcast message of aggregation node, carries out network flood by broadcast message, sensor node adds institute
There is neighbor table of the neighbor node to itself, wherein neighbor node is the other sensors section in sensor node communication range
Point；Vibration data transmit the stage, sensor node at a distance from aggregation node for single-hop apart from when, directly by the vibration of acquisition
Data are sent to aggregation node, sensor node be not single-hop at a distance from aggregation node apart from when, sensor node passes through more
The vibration data of acquisition is sent to aggregation node by the form of jump；Sensor node obtains each neighbour in neighbor table by information exchange
The relevant information of node is occupied, the relevant information includes the hop count to aggregation node, current remaining, primary power；
If the hop count of sensor node i to aggregation node is ui, sensor node i is by way of multi-hop by the vibration number of acquisition
When according to being sent to aggregation node, sensor node i calculates the weight of each neighbor node in its neighbor table, and weight is greater than 0
Neighbor node alternately relay node, constructs alternative relay node list and regularly updates；
When the number of alternative relay node is 0 and sensor node i has and uiWhen the neighbor node of same number of hops, sensor section
Point i with uiSelect the highest neighbor node of current remaining as next-hop in the neighbor node of same number of hops；
When alternative relay node number be 0 and sensor node i without and uiWhen the neighbor node of same number of hops, sensor section
Point abandons the vibration data of acquisition；
When the number of alternative relay node is not 0, sensor node i randomly chooses an alternative relay node as next
It jumps；
Wherein, the calculation formula of weight is set are as follows:
In formula, uijFor hop count of j-th of neighbor node to aggregation node of sensor node i, KijFor j-th of neighbor node
Current remaining, Kie0For the current remaining of e-th of neighbor node of sensor node i, niFor sensor node i
Neighbor node quantity, KminFor preset minimum energy value；
For value function, meet:
WhenWhen,
WhenWhen,
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811211033.5A CN109377045A (en) | 2018-10-17 | 2018-10-17 | Large-scale retaining dam structural damage wisdom monitors system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811211033.5A CN109377045A (en) | 2018-10-17 | 2018-10-17 | Large-scale retaining dam structural damage wisdom monitors system |
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Application publication date: 20190222 |