CN211696662U - Wind vibration response monitoring system - Google Patents
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Abstract
The embodiment of the application discloses wind vibration response monitoring system includes: the monitoring subsystem comprises a plurality of sensors which are distributed on different positions of the overpass and used for monitoring sensing data generated by wind vibration of the overpass; the acquisition subsystem is connected with the monitoring subsystem and is used for acquiring the sensing data monitored by the monitoring subsystem; and the processing subsystem is connected with the acquisition subsystem and is used for receiving the sensing data sent by the acquisition subsystem and analyzing and processing the sensing data.
Description
Technical Field
The application relates to the technical field of bridge monitoring, in particular to a wind vibration response monitoring system.
Background
With the high demand of national economic construction and the rapid promotion of high-speed rail technology, the high-speed railway is rapidly developed in recent years, and the speed of a high-speed train is also continuously increased. However, when the train runs on the track at a high speed, the air viscosity enables the air nearby to be driven by the surface of the train and move along with the train, the air tightly attached to the surface of the train keeps relatively static with the train, the relative speed of the air leaving the surface of the train is high, and train wind is generated by the speed difference between the air and the surface of the train. The faster the speed of the train, the stronger the train wind and thus the greater the disturbance of the train to the surrounding air.
Because the overline steel truss overline bridge on the high-speed railway has light weight and small rigidity, the overline steel truss overline bridge is obviously influenced by high-speed train wind, and the phenomenon of obvious wind-induced vibration is easy to occur, so that the use function and the comfort of the overline steel truss overline bridge are influenced, and even the safety of the overline bridge structure is influenced. Therefore, the wind vibration response monitoring of the over-line steel truss overpass on the high-speed railway is very important. In the prior art, the safety of the overline steel truss overpass is mostly detected in a manual timing inspection mode, the manual inspection mode is difficult to guarantee that damage caused by wind-induced response is found in time, and the manual inspection is difficult to quantize wind pressure and wind-induced vibration response caused by a high-speed train. Therefore, how to realize the real-time monitoring of the overline steel truss overpass becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, a main object of the present application is to provide a wind vibration response monitoring system.
The embodiment of the application provides a wind vibration response monitoring system, includes:
the monitoring subsystem comprises a plurality of sensors which are distributed on different positions of the overpass and used for monitoring sensing data generated by wind vibration of the overpass;
the acquisition subsystem is connected with the monitoring subsystem and is used for acquiring the sensing data monitored by the monitoring subsystem;
and the processing subsystem is connected with the acquisition subsystem and is used for receiving the sensing data sent by the acquisition subsystem and analyzing and processing the sensing data.
In an alternative embodiment, the monitoring subsystem includes a plurality of excitation input sensors and a plurality of structural response sensors; wherein,
the plurality of excitation input sensors at least comprise a wind pressure sensor and a wind speed sensor;
the plurality of structural response sensors includes at least a vibration acceleration sensor, a stress sensor, and a tilt sensor.
In an alternative embodiment, the acquisition subsystem comprises:
the data acquisition device is connected with the sensors and is used for acquiring sensing data monitored by the sensors;
and the data transmission device is connected with the data acquisition device and the processing subsystem and is used for transmitting the sensing data to the processing subsystem.
In an alternative embodiment, the data transmission device is a wireless transmission device.
In an alternative embodiment, the processing subsystem comprises:
the first processor is connected with the acquisition subsystem and used for analyzing and processing the sensing data sent by the acquisition subsystem to obtain a processing result;
the memory is connected with the first processor and used for storing the processing result obtained by the first processor in a classified manner;
and the display is connected with the first processor and used for displaying the processing result obtained by the first processor.
In an optional embodiment, the processing subsystem further comprises:
the second processor is connected between the acquisition subsystem and the first processor and is used for preprocessing the sensing data sent by the acquisition subsystem, wherein the preprocessing comprises screening and denoising; and sending the preprocessed sensing data to the first processor.
In an alternative embodiment, the wind vibration response monitoring system further comprises: a maintenance subsystem; wherein,
the maintenance subsystem comprises one or more maintenance terminals, and the maintenance terminals are connected with the monitoring subsystem and/or the acquisition subsystem and used for checking the monitoring subsystem and/or the acquisition subsystem and maintaining according to checking results.
In an alternative embodiment, the wind vibration response monitoring system further comprises: an evaluation subsystem; wherein,
the evaluation subsystem comprises one or more evaluation terminals, and the evaluation terminals are connected with the acquisition subsystem and/or the processing subsystem and used for generating a structure monitoring report of the overpass based on the sensing data obtained by the acquisition subsystem and/or the processing result obtained by the processing subsystem.
In an alternative embodiment, the wind vibration response monitoring system further comprises: an early warning subsystem; wherein,
the early warning subsystem comprises at least one early warning terminal, and the early warning terminal is connected with the processing subsystem and used for carrying out structural safety evaluation on the overpass based on a processing result obtained by the processing subsystem.
The embodiment of the application discloses wind vibration response monitoring system includes: the monitoring subsystem comprises a plurality of sensors which are distributed on different positions of the overpass and used for monitoring sensing data generated by wind vibration of the overpass; the acquisition subsystem is connected with the monitoring subsystem and is used for acquiring the sensing data monitored by the monitoring subsystem; and the processing subsystem is connected with the acquisition subsystem and is used for receiving the sensing data sent by the acquisition subsystem and analyzing and processing the sensing data. Compared with the existing manual inspection technology, the wind vibration response monitoring system greatly reduces the labor cost of manual inspection, and integrally reduces the economic cost; moreover, the sensors are distributed and arranged at different positions of the overpass, so that the wind vibration response can be monitored remotely and quantitatively in real time, and compared with manual qualitative description, the accuracy and the reliability are greatly improved.
Drawings
Fig. 1 is a first schematic structural diagram of a wind vibration response monitoring system according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram I of the arrangement position of a wind pressure sensor;
FIG. 3 is a schematic diagram II of the arrangement position of the wind pressure sensors;
FIG. 4 is a schematic view of the layout position of the wind speed sensor;
FIG. 5 is a schematic diagram of the layout position of a vibration acceleration sensor;
FIG. 6 is a schematic view of the layout position of the stress sensor;
FIG. 7 is a schematic view of the arrangement position of the tilt sensor;
fig. 8 is a schematic structural diagram of an acquisition subsystem provided in an embodiment of the present application;
FIG. 9 is a block diagram of a processing subsystem according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a wind vibration response monitoring system according to an embodiment of the present application.
Detailed Description
Exemplary embodiments disclosed in the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the specific embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art, that the present application may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present application; that is, not all features of an actual embodiment are described herein, and well-known functions and structures are not described in detail.
In the drawings, the size of layers, regions, elements, and relative sizes may be exaggerated for clarity. Like reference numerals refer to like elements throughout.
It will be appreciated that spatial relationship terms, such as "under … …," "under … …," "under … …," "over … …," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, then elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "below … …" and "below … …" can encompass both an orientation of up and down. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
Fig. 1 is a schematic structural diagram of a wind vibration response monitoring system according to an embodiment of the present application, and as shown in fig. 1, the wind vibration response monitoring system 100 includes:
the monitoring subsystem 110 comprises a plurality of sensors, and the sensors are distributed on different positions of the overpass and are used for monitoring sensing data generated by wind vibration of the overpass;
the acquisition subsystem 120, the acquisition subsystem 120 is connected to the monitoring subsystem 110, and is configured to acquire the sensing data monitored by the monitoring subsystem 110;
and the processing subsystem 130 is connected with the acquisition subsystem 120, and is used for receiving the sensing data sent by the acquisition subsystem 120, and analyzing and processing the sensing data.
In the present embodiment, the monitoring subsystem 110 includes a plurality of excitation input sensors and a plurality of structural response sensors; wherein,
the plurality of excitation input sensors at least comprise a wind pressure sensor and a wind speed sensor;
the plurality of structural response sensors includes at least a vibration acceleration sensor, a stress sensor, and a tilt sensor.
Fig. 2 is a bottom view of the overpass, fig. 3 is a front view of the overpass, the arrangement positions of the wind pressure sensors are shown in fig. 2 and fig. 3, and the wind pressure sensors 230 are distributed on the lower chord cross beam 220 of the overpass. As can be seen from fig. 2 and 3, the wind pressure sensors 230 are distributed in the middle of the lower chord cross beam 220 of the overpass between the two lower chord main beams 210 of the overpass, and the wind pressure sensors 230 are arranged right above the two trains 240. The wind pressure sensors 230 shown in 8 in the figure are symmetrically distributed along the center of the overpass.
Fig. 4 is a front view of the platform bridge, in which the wind speed sensors are arranged as shown in fig. 4, and 2 wind speed sensors 250 are disposed at the edges of the platforms on both sides of the train 240.
Fig. 5 is a top view of the overpass, the arrangement positions of the vibration acceleration sensors are shown in fig. 5, the vibration acceleration sensors 260 are distributed on the overpass lower chord main beam 210 and the overpass lower chord cross beam 220, wherein 2 vibration acceleration sensors 260 are respectively arranged at two symmetrical positions of 2 overpass lower chord main beams 210 along the overpass lower chord cross beam 220, and the other 3 vibration acceleration sensors 260 are respectively arranged in the middle of the corresponding 3 overpass lower chord cross beams 220 along the overpass center symmetry.
Fig. 6 is a front view of the overpass, the stress sensors are arranged at the positions shown in fig. 6, the stress sensors 270 are distributed on the overpass lower chord main beam 210 and the overpass web member 280, wherein 2 stress sensors 270 are symmetrically arranged on the overpass lower chord main beam 210 along the center of the overpass, and the other 4 stress sensors 270 are distributed on the overpass web member 280.
Fig. 7 is a front view of the overpass, the tilt sensor is arranged at the position shown in fig. 7, and the tilt sensor 290 is arranged on the lower chord girder 210 of the overpass at the left side of the overpass.
It should be noted that fig. 2 to fig. 7 are only an example of the distribution of the sensors in the embodiment of the present application, and are not intended to limit the position of the sensors in the present application. In practical application, technicians can select different numbers and types of sensors according to practical conditions and set the sensors at any position of the overpass according to different monitoring requirements.
The sensors are distributed on different positions of the overpass and used for monitoring sensing data generated by wind vibration of the overpass, and the principle of selecting the positions of the sensors mainly comprises the following two aspects:
in a first aspect: the method comprises the steps of obtaining calculation data of surface wind pressure distribution of an overbridge when a high-speed train passes through the overbridge through numerical simulation, researching the distribution rule of the train wind pressure on the surface of the overbridge, and further obtaining the distribution rule of train induced overbridge wind pressure, wind speed and truss wind induced response. And then selecting a position with larger wind pressure, a position with larger wind speed, a position with larger stress of the overpass, a position with larger inclination angle of the overpass and the like as the arrangement positions of the sensors according to the distribution rule.
In a second aspect: in the sensor layout position, a position which is easy to be laid on site is further selected as a final sensor layout position.
Fig. 8 is a schematic structural diagram of an acquisition subsystem provided in an embodiment of the present application, and as shown in fig. 8, the acquisition subsystem 120 includes: the data acquisition device 121 is connected with the sensors and used for acquiring sensing data monitored by the sensors, and the data acquisition device 121 is connected with the sensors and used for acquiring sensing data monitored by the sensors;
and the data transmission device 122 is connected with the data acquisition device 121 and the processing subsystem 130, and is used for transmitting the sensing data to the processing subsystem 130.
Here, the plurality of sensors are connected to the data acquisition device 121 through data lines. The data transmission device 122 is wirelessly connected with the data acquisition device 121 and the processing subsystem 130, so as to perform wireless data transmission. The data transmission device 122 is a wireless transmission device.
Fig. 9 is a schematic structural diagram of a processing subsystem according to an embodiment of the present application, and as shown in fig. 9, the processing subsystem 130 includes: the first processor 131, where the first processor 131 is connected to the acquisition subsystem 120, and is configured to analyze and process the sensing data sent by the acquisition subsystem 120 to obtain a processing result;
a memory 132, wherein the memory 132 is connected to the first processor 131, and is configured to perform classified storage on processing results obtained by the first processor 131;
and the display 133, where the display 133 is connected to the first processor 131, and is configured to display a processing result obtained by the first processor 131.
Here, the processing subsystem 130 includes the first processor 131, the memory 132 and the display 133, the first processor 131 is connected to the collecting subsystem 120, the collection and transmission of the sensing data can be effectively controlled by the first processor 131, the sensing data sent by the collecting subsystem 120 is analyzed and processed, the analyzed and processed data is classified and stored and backed up by the memory 132, and the analyzed and processed data is displayed in real time by the display 133. In practical applications, the display 133 may be a monitor of a monitoring center.
In the technical solution of the embodiment of the present application, the memory may be a volatile memory or a nonvolatile memory, or may include both a volatile memory and a nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which functions as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DR RAM).
In this embodiment, the processing subsystem 130 further includes: the second processor 134 is connected between the acquisition subsystem 120 and the first processor 131, and is configured to perform preprocessing on the sensing data sent by the acquisition subsystem 120, where the preprocessing includes screening and denoising; and transmits the preprocessed sensing data to the first processor 131.
Here, the acquisition subsystem 120 is disposed on the overpass, the data acquisition device 121 in the acquisition subsystem 120 acquires sensing data monitored by the plurality of sensors, and transmits the sensing data to the second processor 134 in the processing subsystem 130 through the data transmission device 122 in the acquisition subsystem 120, and after receiving the sensing data, the second processor 134 pre-processes the sensing data and transmits the pre-processed sensing data to the first processor 131. The second processor 134 and the first processor 131 may be wirelessly connected to each other, so as to perform wireless data transmission. Wherein the preprocessing comprises screening and denoising. In some embodiments, the second processor 134 may further perform an anomaly determination on the received sensing data, determine whether the sensing data has data anomaly, and reject the abnormal sensing data if the sensing data has data anomaly.
In a Specific implementation, the first Processor and the second Processor may be general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. Further, a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
On the basis of the wind vibration response monitoring system shown in fig. 1, an embodiment of the present application further provides a wind vibration response monitoring system, and as shown in fig. 10, the wind vibration response monitoring system 100 further includes: a maintenance subsystem 140; wherein,
the maintenance subsystem 140 includes one or more maintenance terminals, and the maintenance terminals are connected to the monitoring subsystem 110 and/or the acquisition subsystem 120 and are configured to perform inspection on the monitoring subsystem 110 and/or the acquisition subsystem 120 and perform maintenance according to an inspection result.
Here, the maintenance subsystem 140 is connected to the monitoring subsystem 110 and/or the acquisition subsystem 120, and performs inspection, calibration, maintenance and upgrade on hardware devices in the monitoring subsystem 110 and/or the acquisition subsystem 120, and performs test, optimization, maintenance and upgrade on software systems in the monitoring subsystem 110 and/or the acquisition subsystem 120.
In the embodiment of the present application, the wind vibration response monitoring system 100 further includes: an evaluation subsystem 150; wherein,
the evaluation subsystem 150 includes one or more evaluation terminals, and the evaluation terminals are connected to the acquisition subsystem 120 and/or the processing subsystem 130, and are configured to generate a structure monitoring report of the overpass based on the sensing data obtained by the acquisition subsystem 120 and/or the processing result obtained by the processing subsystem 130.
Here, the evaluation subsystem 150 may invoke data in the memory 132 and/or perform structure monitoring on the overpass based on the sensing data collected by the collection subsystem 120, and display the generated structure monitoring report on the display 133 in real time, and store the structure monitoring report in the memory 132. In practical applications, the display 133 may be a monitor of a monitoring center.
Here, the evaluation subsystem 150 may further analyze the sensing data acquired by the acquisition subsystem 120, introduce the sensing data monitored on site into the calculation model, and know the current stress state of the overpass structure according to the numerical analysis result in the calculation model, so as to output a structure monitoring report of the overpass in real time, and provide a data basis for determining the health state of the overpass.
In the embodiment of the present application, the wind vibration response monitoring system 100 further includes: an early warning subsystem 160; wherein,
the early warning subsystem 160 includes at least one early warning terminal, and the early warning terminal is connected to the processing subsystem 130 and configured to perform structural security assessment on the overpass based on a processing result obtained by the processing subsystem 130.
Here, the early warning subsystem 160 may perform structural safety assessment on the overpass based on the processing result obtained by the processing subsystem 130, and display the result of the structural safety assessment on the display 133 in real time, and store the result of the structural safety assessment in the memory 132. The early warning subsystem 160 can also perform early warning via the display 133 when the result of the structural safety assessment is in an alarm state. In addition, the data in the memory 132 can transmit the related result to the background server by wireless transmission, so that the user can monitor the data in real time or the system developer can maintain the system remotely. It should be noted that the wireless transmission mode may include mobile data transmission, WiFi data transmission, and bluetooth data transmission.
The wind vibration response monitoring system further comprises a maintenance subsystem, and the maintenance subsystem can realize maintenance and upgrading of hardware equipment and a software system, so that the wind vibration response monitoring system has the advantage of long-term stable use. And further, the wind vibration response monitoring system that this application provided still includes: the system comprises an evaluation subsystem and an early warning subsystem, wherein the evaluation subsystem and the early warning subsystem can further analyze monitoring data, can perform real-time structure detection and structure safety evaluation on the overpass, and can output a structure monitoring report and a structure safety evaluation result in real time so as to provide accurate data basis for judging the health state of the overpass.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A wind vibration response monitoring system, comprising:
the monitoring subsystem comprises a plurality of sensors which are distributed on different positions of the overpass and used for monitoring sensing data generated by wind vibration of the overpass;
the acquisition subsystem is connected with the monitoring subsystem and is used for acquiring the sensing data monitored by the monitoring subsystem;
and the processing subsystem is connected with the acquisition subsystem and is used for receiving the sensing data sent by the acquisition subsystem and analyzing and processing the sensing data.
2. The wind vibration response monitoring system of claim 1, wherein the monitoring subsystem comprises a plurality of excitation input sensors and a plurality of structural response sensors; wherein,
the plurality of excitation input sensors at least comprise a wind pressure sensor and a wind speed sensor;
the plurality of structural response sensors includes at least a vibration acceleration sensor, a stress sensor, and a tilt sensor.
3. The wind vibration response monitoring system of claim 1, wherein the acquisition subsystem comprises:
the data acquisition device is connected with the sensors and is used for acquiring sensing data monitored by the sensors;
and the data transmission device is connected with the data acquisition device and the processing subsystem and is used for transmitting the sensing data to the processing subsystem.
4. A wind vibration response monitoring system according to claim 3, wherein said data transmission means is a wireless transmission means.
5. The wind vibration response monitoring system of claim 1, wherein the processing subsystem comprises:
the first processor is connected with the acquisition subsystem and used for analyzing and processing the sensing data sent by the acquisition subsystem to obtain a processing result;
the memory is connected with the first processor and used for storing the processing result obtained by the first processor in a classified manner;
and the display is connected with the first processor and used for displaying the processing result obtained by the first processor.
6. The wind vibration response monitoring system of claim 5, wherein the processing subsystem further comprises:
the second processor is connected between the acquisition subsystem and the first processor and is used for preprocessing the sensing data sent by the acquisition subsystem, wherein the preprocessing comprises screening and denoising; and sending the preprocessed sensing data to the first processor.
7. A wind vibration response monitoring system according to any of claims 1-6, further comprising: a maintenance subsystem; wherein,
the maintenance subsystem comprises one or more maintenance terminals, and the maintenance terminals are connected with the monitoring subsystem and/or the acquisition subsystem and used for checking the monitoring subsystem and/or the acquisition subsystem and maintaining according to checking results.
8. A wind vibration response monitoring system according to any of claims 1-6, further comprising: an evaluation subsystem; wherein,
the evaluation subsystem comprises one or more evaluation terminals, and the evaluation terminals are connected with the acquisition subsystem and/or the processing subsystem and used for generating a structure monitoring report of the overpass based on the sensing data obtained by the acquisition subsystem and/or the processing result obtained by the processing subsystem.
9. A wind vibration response monitoring system according to any of claims 1-6, further comprising: an early warning subsystem; wherein,
the early warning subsystem comprises at least one early warning terminal, and the early warning terminal is connected with the processing subsystem and used for carrying out structural safety evaluation on the overpass based on a processing result obtained by the processing subsystem.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188595A (en) * | 2021-04-25 | 2021-07-30 | 中铁第四勘察设计院集团有限公司 | Remote control bridge monitoring automatic expression system and method |
| CN114383720A (en) * | 2021-12-28 | 2022-04-22 | 中国铁道科学研究院集团有限公司节能环保劳卫研究所 | Structure vibration response automatic monitoring device of underground high-speed railway station |
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- 2020-02-27 CN CN202020217919.7U patent/CN211696662U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188595A (en) * | 2021-04-25 | 2021-07-30 | 中铁第四勘察设计院集团有限公司 | Remote control bridge monitoring automatic expression system and method |
| CN114383720A (en) * | 2021-12-28 | 2022-04-22 | 中国铁道科学研究院集团有限公司节能环保劳卫研究所 | Structure vibration response automatic monitoring device of underground high-speed railway station |
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