CN215003738U - Bridge structures warp multi-parameter basis monitoring devices - Google Patents
Bridge structures warp multi-parameter basis monitoring devices Download PDFInfo
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- CN215003738U CN215003738U CN202121504181.3U CN202121504181U CN215003738U CN 215003738 U CN215003738 U CN 215003738U CN 202121504181 U CN202121504181 U CN 202121504181U CN 215003738 U CN215003738 U CN 215003738U
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Abstract
The utility model provides a bridge structure deformation multi-parameter foundation monitoring device, which comprises a bracket, a camera, an inclination sensor, a wireless communication module and a processor; the camera is used for continuously acquiring image information of the monitored bridge in real time or at regular period and transmitting the image information to the processor; and the processor judges the deformation condition of the bridge structure according to the change of the bridge image information and the inclination angle information. The utility model discloses form standardized bridge automatic monitoring scheme, can effectively reduce system complexity, shorten implementation cycle by a wide margin, obviously practice thrift implementation cost, and then promote the popularization and application of bridge structure deformation on-line monitoring technique.
Description
Technical Field
The utility model belongs to the technical field of building, bridge structures or engineering monitoring technology and specifically relates to a bridge structures warp multi-parameter basis monitoring devices.
Background
The existing bridge structure deformation monitoring system generally comprises main deformation monitoring items such as bridge pier/bridge tower settlement, bridge deflection, strain, inclination and cracks, the existing monitoring means adopts a mode of artificial optical observation and automatic monitoring, and the automatic monitoring is mainly in a wired sensor acquisition mode.
The existing monitoring method mainly has two defects: one aspect is that automatic monitoring cannot be completely realized, and the monitoring of pier/bridge tower settlement and bridge deflection deformation is generally carried out by adopting an optical observation instrument (a total station or a level gauge); another aspect is that the wired sensor acquisition mode requires the sensor to be connected to the acquisition instrument by a cable (wire or optical fiber), which results in long construction period and high construction cost. The problems directly cause the comprehensive cost of bridge monitoring to be high, and the popularization and application of bridge structure deformation monitoring are seriously hindered.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bridge structures warp multi-parameter basis monitoring devices to solve at least one above-mentioned technical problem who exists among the prior art.
In order to solve the technical problem, the utility model provides a pair of bridge structures warp multi-parameter basis monitoring devices, include: the device comprises a support, a camera, a tilt sensor, a wireless communication module and a processor;
the camera is arranged on the bracket and is connected with the processor; the camera is used for continuously acquiring image information of the monitored bridge in real time or at regular period and transmitting the image information to the processor;
the inclination sensor is arranged on the side surface of the monitored bridge and used for monitoring the change of the inclination angle of the bridge; the inclination sensor is connected with the processor through the wireless communication module and transmits the monitored bridge inclination angle information to the processor;
and the processor judges the deformation condition of the bridge structure according to the change of the bridge image information and the inclination angle information.
The utility model discloses simple structure, it is easy and simple to handle, the treater passes through monitoring image information and changes, but the deformation conditions such as meeting an emergency, slope, crack of rapid judgement bridge structures, degree of automation is high, has reduced monitoring workman's intensity of labour. In addition, the inclination sensor is directly arranged on the bridge, so that the tiny change of the inclination angle of the bridge structure can be monitored in real time, and the monitoring precision is higher; and has the characteristics of quick installation and wireless acquisition.
Determining a deformation monitoring point location on the surface of the bridge shot by the camera, and determining image characteristics in a certain range around the point location as a measuring point tracking object; determining the relationship between the size of the image at the position of the measuring point and the actual horizontal and vertical sizes by a calibration method; determining an initial image, and taking the coordinate position of each measuring point on the image as an original 0 coordinate; acquiring pictures of a camera at set monitoring intervals, and tracking the displacement of coordinates of a measured point image; and calculating the actual deformation result of the measuring point according to the calibration relation. The image processing module is arranged in the processor, so that the comparison and analysis of image information can be realized, and the image information processing technology belongs to the prior art and is widely applied to technologies such as traffic monitoring and person identification, and is not repeated herein.
Furthermore, the support and the camera are arranged on a stable reference point outside the tunnel crossing influence area, and the bridge is in the field of view of the camera.
Further, the wireless communication module is an NB-IoT wireless communication module. The NB-IoT wireless communication module is constructed in a cellular network, is a low-power consumption data transmission unit, only consumes about 180kHz bandwidth, can be directly deployed in a GSM network, a UMTS network or an LTE network, greatly reduces the deployment cost and can realize smooth upgrade.
Further, the wireless communication module comprises a first communication module connected with the inclination sensor and a second communication module connected with the processor.
Further, the processor is connected with the monitoring platform through the second communication module. Therefore, platform transmission of field data and system operation diagnosis information is realized, and issuing of a monitoring platform control instruction is completed. Wherein the monitoring platform may be a remote computer.
And the processor is used for monitoring the change condition of the bridge structure by combining the distance change information of a plurality of monitored points on the bridge.
Further, the laser range finder can be periodically arranged on the bracket in a swinging mode and used for periodically monitoring the distance between a plurality of measuring points on the bridge structure.
The laser range finder comprises a laser range finder, a first stepping motor and a second stepping motor, wherein the laser range finder is used for driving the laser range finder to swing left and right in a horizontal plane; the power output shaft of the first stepping motor is vertically arranged, and the laser range finder is fixed on the power output shaft of the first stepping motor.
Further, the device also comprises a second stepping motor and a mounting table; the power output shaft level of second step motor just roughly with by monitoring bridge parallel arrangement, mount table and second step motor's power output shaft fixed connection, first step motor with laser range finder sets up on the mount table, be used for driving first step motor with the laser range finder sways from top to bottom and changes.
Preferably, the processor is connected with the first stepping motor and the second stepping motor and is used for controlling the swinging speed and the period of the electric translation table.
The distance values of a plurality of measuring points on the bridge structure measured by the laser range finder in a moving period can be stored in a storage unit of the processor as a vector value or matrix data, and the relative deformation conditions of the plurality of measuring points of the bridge structure can be rapidly found by regularly monitoring and comparing the data sets of the distance values of the plurality of measuring points, so that the disturbance conditions of underground construction and the like on the bridge structure can be rapidly fed back.
Further, the solar cell panel is used as a power supply.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
the utility model provides a pair of full-automatic bridge structures warp multi-parameter basis monitoring system forms standardized bridge automatic monitoring scheme, can effectively reduce system complexity, shorten implementation cycle by a wide margin, obviously practices thrift implementation cost, and then promotes the popularization and application of bridge structures warp on-line monitoring technique.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a bridge structure deformation multi-parameter foundation monitoring device provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of the operation of the camera in the embodiment;
fig. 3 is a schematic view of a swing driving structure of the laser range finder of the present invention;
fig. 4 is a view taken along direction a in fig. 3.
Reference numerals:
10-a scaffold; 20-a camera; 30-laser rangefinder; 40-a tilt sensor; 50-a processor; 60-a wireless communication module; 61-a first communication module; 62-a second communication module; 70-solar panel; 81-a first stepper motor; 82-a second stepper motor; 83-mounting table.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be further explained with reference to specific embodiments.
As shown in fig. 1, the bridge structure deformation multi-parameter basic monitoring device provided in this embodiment includes: a stand 10, a camera 20, a tilt sensor 40, a wireless communication module 60, and a processor 50. The wireless communication module 60 includes a first communication module 61 and a second communication module 62.
The camera 20 is arranged on the bracket 10 and is connected with the processor 50; referring to fig. 2, the camera 20 is used to continuously acquire image information of the monitored bridge 1 in real time or periodically and transmit the image information to the processor 50.
The inclination sensor 40 is arranged on the side surface of the monitored bridge 1 and used for monitoring the change of the inclination angle of the bridge 1; the inclination sensor 40 is connected with the processor 50 through the first communication module 61, and transmits the monitored information of the inclination angle of the bridge 1 to the processor 50; the processor 50 determines the deformation of the bridge 1 structure according to the change of the image information and the inclination angle information of the bridge 1.
The utility model discloses simple structure, it is easy and simple to handle, processor 50 changes through monitoring image information, but the deformation conditions such as meeting an emergency, slope, crack of snap judgments bridge construction, and degree of automation is high, has reduced monitoring workman's intensity of labour. In addition, the inclination sensor 40 is directly arranged on the bridge 1, so that the tiny change of the inclination angle of the bridge structure can be monitored in real time, and the monitoring precision is higher; and has the characteristics of quick installation and wireless acquisition.
Wherein, a deformation monitoring point location is determined on the surface of the bridge 1 shot by the camera 20, and image characteristics in a certain range around the point location are determined as a measuring point tracking object; determining the relationship between the size of the image at the position of the measuring point and the actual horizontal and vertical sizes by a calibration method; determining an initial image, and taking the coordinate position of each measuring point on the image as an original 0 coordinate; acquiring pictures of the camera 20 at set monitoring intervals, and tracking the displacement of the coordinates of the image of the measuring point; and calculating the actual deformation result of the measuring point according to the calibration relation. The image processing module is disposed in the processor 50, and can implement comparison and analysis of image information, and the image information processing technology belongs to the prior art, and is widely applied to technologies such as traffic monitoring and person identification, and thus is not described herein again.
Preferably, the support 10 and the camera 20 are arranged on a stable reference point outside the tunnel-crossing affected zone, the bridge 1 being within the field of view of the camera 20. The wireless communication module 60 is an NB-IoT wireless communication module. The NB-IoT wireless communication module is constructed in a cellular network, is a low-power consumption data transmission unit, only consumes about 180kHz bandwidth, can be directly deployed in a GSM network, a UMTS network or an LTE network, greatly reduces the deployment cost and can realize smooth upgrade.
The processor 50 is connected to the monitoring platform via a second communication module 62. Therefore, platform transmission of field data and system operation diagnosis information is realized, and issuing of a monitoring platform control instruction is completed. Wherein the monitoring platform can be a remote computer or an alarm device and the like.
On the basis of the above technical solution, more preferably, the present embodiment further includes a laser range finder 30, the laser range finder 30 is disposed on the support 10, and is connected to the processor 50, and is configured to continuously measure the distance to the bridge 1 structure in real time or periodically, and transmit the distance information to the processor 50, and the processor 50 monitors the structural change condition of the bridge 1 by combining the distance change information of the multiple monitored points on the bridge 1.
It is further preferred that the laser distance measuring device 30 is periodically swingably provided on the support 10 for periodically monitoring the distance of a plurality of measuring points on the structure of the bridge 1.
Referring to fig. 3 and 4, the present embodiment further includes a first stepping motor 81 for driving the laser range finder 30 to swing left and right in the horizontal plane; the power output shaft of the first stepping motor 81 is vertically arranged, and the laser range finder 30 is fixed on the power output shaft of the first stepping motor 81. And further includes a second stepping motor 82 and a mount table 83; the power output shaft of the second stepping motor 82 is horizontal and is roughly parallel to the monitored bridge 1, the mounting table 83 is fixedly connected with the power output shaft of the second stepping motor 82, and the first stepping motor 81 and the laser range finder 30 are arranged on the mounting table 83 and used for driving the first stepping motor 81 and the laser range finder 30 to swing up and down. The processor 50 is connected to a first stepping motor 81 and a second stepping motor 82 for controlling the swing speed and period of the motorized translation stage.
The distance values of a plurality of measuring points on the bridge 1 structure measured by the laser range finder 30 in a moving period can be stored in a storage unit of the processor 50 as a vector value or matrix data, and the relative deformation conditions of the plurality of measuring points of the bridge 1 structure can be rapidly found by regularly monitoring and comparing the data sets of the distance values of the plurality of measuring points, so that the disturbance conditions caused to the bridge 1 structure by underground construction and the like can be rapidly fed back.
In addition, a solar panel 70 is provided on the stand for supplying power to the electronic components of the device.
The utility model provides a pair of full-automatic bridge structures warp multi-parameter basis monitoring system forms standardized bridge automatic monitoring scheme, can effectively reduce system complexity, shorten implementation cycle by a wide margin, obviously practices thrift implementation cost, and then promotes the popularization and application of bridge structures warp on-line monitoring technique.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a bridge structures warp multi-parameter basis monitoring devices which characterized in that includes: the device comprises a support, a camera, a tilt sensor, a wireless communication module and a processor;
the camera is arranged on the bracket and is connected with the processor; the camera is used for continuously acquiring image information of the monitored bridge in real time or at regular period and transmitting the image information to the processor;
the inclination sensor is arranged on the side surface of the monitored bridge and used for monitoring the change of the inclination angle of the bridge; the inclination sensor is connected with the processor through the wireless communication module and transmits the monitored bridge inclination angle information to the processor;
and the processor judges the deformation condition of the bridge structure according to the change of the bridge image information and the inclination angle information.
2. The bridge structure deformation multiparameter basis monitoring device of claim 1, wherein the supports and cameras are arranged on stable reference points outside the tunnel crossing affected zone, and the bridge is within the field of view of the cameras.
3. The bridge structure deformation multi-parameter basis monitoring device of claim 1, wherein the wireless communication module is an NB-IoT wireless communication module.
4. The bridge structure deformation multiparameter basis monitoring device of claim 1, wherein the wireless communication module comprises a first communication module connected to the inclination sensor, and a second communication module connected to the processor.
5. The bridge structure deformation multiparameter basis monitoring device of claim 4, wherein the processor is connected with a monitoring platform through the second communication module.
6. The bridge structure deformation multiparameter basis monitoring device of claim 1, further comprising a laser range finder, wherein the laser range finder is arranged on the support, connected with the processor, and used for continuously measuring the distance to the bridge structure in real time or periodically and transmitting the distance information to the processor, and the processor monitors the change condition of the bridge structure by combining the distance change information of a plurality of monitored points on the bridge.
7. The bridge structure deformation multiparameter basis monitoring device of claim 6, wherein the laser rangefinder is periodically swingably provided on the bracket for periodically monitoring the distance between a plurality of measurement points on the bridge structure.
8. The bridge structure deformation multi-parameter foundation monitoring device of claim 7, further comprising a first stepping motor for driving the laser range finder to swing left and right in a horizontal plane; the power output shaft of the first stepping motor is vertically arranged, and the laser range finder is fixed on the power output shaft of the first stepping motor.
9. The bridge structure deformation multiparameter basis monitoring device of claim 8, further comprising a second stepping motor and a mounting table; the power output shaft level of second step motor just roughly with by monitoring bridge parallel arrangement, mount table and second step motor's power output shaft fixed connection, first step motor with laser range finder sets up on the mount table, be used for driving first step motor with the laser range finder sways from top to bottom and changes.
10. The bridge structure deformation multiparameter basis monitoring device of claim 1, further comprising a solar panel as a power source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121504181.3U CN215003738U (en) | 2021-07-02 | 2021-07-02 | Bridge structures warp multi-parameter basis monitoring devices |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121504181.3U CN215003738U (en) | 2021-07-02 | 2021-07-02 | Bridge structures warp multi-parameter basis monitoring devices |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705163A (en) * | 2022-02-28 | 2022-07-05 | 河海大学 | Viaduct bridge safety detection method based on machine vision |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705163A (en) * | 2022-02-28 | 2022-07-05 | 河海大学 | Viaduct bridge safety detection method based on machine vision |
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