CN216669193U - Bridge expansion joint health condition monitoring system based on audio and video - Google Patents
Bridge expansion joint health condition monitoring system based on audio and video Download PDFInfo
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- CN216669193U CN216669193U CN202123253453.XU CN202123253453U CN216669193U CN 216669193 U CN216669193 U CN 216669193U CN 202123253453 U CN202123253453 U CN 202123253453U CN 216669193 U CN216669193 U CN 216669193U
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Abstract
The utility model discloses an audio and video based bridge expansion joint health condition monitoring system which comprises an image acquisition module, an audio acquisition module and a processor, wherein the image acquisition module and the audio acquisition module are connected with the processor, the image acquisition module is used for acquiring image information on a bridge expansion joint, the audio acquisition module is used for acquiring actual sound spectrum information on the bridge expansion joint, the processor is used for comparing the actual sound spectrum information with a preset health sound spectrum information range, and when the actual sound spectrum information exceeds the health sound spectrum information range, the bridge expansion joint is judged to have a health problem. The utility model can realize remote shooting and monitoring without contacting the expansion joint, can realize remote control through data line connection, saves labor cost, does not obstruct normal traffic operation, and can monitor the deformation condition of the expansion joint in real time when a vehicle passes a bridge.
Description
Technical Field
The utility model belongs to the technical field of bridge expansion joints, and particularly relates to an audio and video based bridge expansion joint health condition monitoring system.
Background
According to previous research and statistics, the cost of the expansion joint in the bridge construction cost currently only accounts for less than 1%, but 16% of defects occur in the expansion joint in the bridge operation stage, the related maintenance cost of the expansion joint exceeds 20% of the total maintenance cost, and the indirect loss caused by traffic interruption due to the damage of the expansion joint is not included. At present, the real-time bridge monitoring equipment comprises a mechanical detection instrument, a strain electric tester, a vibration measurement sensor and a resistance strain sensor. Although the measuring equipment has timely feedback and high transmission speed, the problems of high labor cost, incapability of ensuring the safety of workers, one-time use of measuring devices, incapability of arranging for a long time, high monitoring and observation difficulty and the like exist. The existing monitoring means can hardly realize dynamic monitoring of the deformation of the bridge expansion joint in limited economic cost and early warning on the safety of the bridge structure.
Chinese utility model patent with publication number CN 214199990U and application publication date 2021, 9 and 14 discloses a monitoring system for bridge expansion joint device, which comprises: the two laser ranging modules are arranged on the supporting seat and are provided with laser emitting windows, and the laser emitting windows of the two laser ranging modules are horizontally aligned to the beam body on the other side; the two fiber bragg grating displacement testing modules are arranged on the supporting seat and are provided with telescopic rods, one of the fiber bragg grating displacement testing modules is vertically fixed on the supporting seat, and the telescopic rods on the module are abutted against the lower end of the seam crossing plate; the other fiber bragg grating displacement testing module is horizontally fixed on the supporting seat, and a telescopic rod on the module is abutted against the supporting seat; and the data acquisition and processing module is respectively connected with the two laser ranging modules and the two fiber bragg grating displacement testing modules. The monitoring system can be used for monitoring the multidirectional displacement of the bridge expansion joint device, and in addition, the accuracy of the method for directly monitoring the corner is higher compared with the horizontal corner amount, the vertical corner and the horizontal corner obtained through calculation. However, the monitoring system cannot monitor the damage state of the bridge deck and the health state of the expansion joint in the daily driving process, is easy to lose efficacy under the long-term fatigue effect, and cannot meet the existing bridge development requirements.
Therefore, in order to find the unfavorable state of the bridge expansion joint in the daily driving process in time and make corresponding counter measures, the change needs to be made on the existing bridge expansion joint monitoring device.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides an audio and video based bridge expansion joint health condition monitoring system, which can realize remote shooting and monitoring without contacting the expansion joint, can realize remote control through data line connection, saves labor cost, does not obstruct normal traffic operation, and can monitor the expansion joint deformation condition in real time when a vehicle passes a bridge.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model provides a bridge expansion joint health condition monitoring system based on audio frequency and video, includes image acquisition module, audio frequency acquisition module and treater, the image acquisition module with the audio frequency acquisition module all with the treater is connected, the image acquisition module is used for gathering the image information on the bridge expansion joint, the audio frequency acquisition module is used for gathering the actual sound spectral information on the bridge expansion joint, the treater is used for with actual sound spectral information contrasts with the healthy sound spectral information scope of predetermineeing, works as actual sound spectral information surpasss when healthy sound spectral information scope, judge that the bridge expansion joint health problem appears.
Further, the system also comprises an image display device, wherein the image display device is connected with the processor and is used for displaying the image information.
Further, the processor and the image display device are connected through a wireless network.
Further, the image display device is a mobile phone mobile terminal.
Further, the image acquisition module is a pan-tilt camera.
Further, the model of the holder camera is a NetCam phenological monitoring network camera.
Further, the audio acquisition module is a sound pickup.
Further, the sound pick-up is a MX-K20 digital waterproof sound pick-up.
Furthermore, a first fixing frame is arranged right above the bridge expansion joint and stretches across the bridge, a second fixing frame is arranged right below the bridge expansion joint and stretches across the bridge, the image acquisition module is arranged on the first fixing frame, and the audio acquisition module is arranged on the second fixing frame.
Compared with the prior art, the utility model has at least the following beneficial effects: the utility model provides an audio and video based bridge expansion joint health condition monitoring system, which collects image information on a bridge expansion joint through an image collection module, the actual sound spectrum information on the bridge expansion joint is acquired through the audio acquisition module, the image acquisition module sends the acquired image information to the processor, the audio acquisition module sends the acquired actual sound spectrum information to the processor, the processor compares the actual sound spectrum information with a preset healthy sound spectrum information range, when the actual sound frequency spectrum information exceeds the healthy sound frequency spectrum information range, the bridge expansion joint is judged to have a health problem without contacting the expansion joint, can realize long-range shooting and monitoring, connect through the data line and also can realize remote control, practice thrift the cost of labor, also do not hinder normal traffic operation to can cross the expansion joint deformation condition real-time monitoring when the vehicle passes a bridge.
Furthermore, the utility model is provided with an image display device, the processor sends the image information for judging the health moment of the bridge expansion joint to the image display device, and bridge maintenance personnel preliminarily judge the unhealthy reason according to the image of the bridge expansion joint displayed by the image display device and take corresponding maintenance measures.
Furthermore, the image display device is a mobile phone terminal, so that the detection result can be conveniently and timely sent to bridge maintenance personnel.
Furthermore, the image acquisition module is a pan-tilt camera, and smooth and stable video shooting can be realized without any additional equipment.
Furthermore, the audio acquisition module is a sound pickup, so that the effect is good and the cost is low.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a bridge expansion joint health status monitoring system based on audio and video;
fig. 2 and fig. 3 are schematic installation diagrams of partial devices in the audio/video-based bridge expansion joint health condition monitoring system.
In the figure: 1-an image acquisition module; 2-an audio acquisition module; 3-bridge expansion joints; 4-a first fixing frame; 5-a second fixing frame.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As a specific embodiment of the present invention, as shown in fig. 1, fig. 2 and fig. 3, an audio/video-based bridge expansion joint health status monitoring system includes an image acquisition module 1, an audio acquisition module 2, a processor and an image display device, where the image acquisition module 1, the audio acquisition module 2 and the image display device are all connected to the processor. Preferably, the image acquisition module 1 is a pan-tilt camera, and the audio acquisition module 2 is a sound pickup. A plurality of audio acquisition modules 2 are uniformly distributed below the bridge expansion joint 3 along the bridge expansion joint 3, a plurality of image acquisition modules 1 are uniformly distributed above the bridge expansion joint 3, and image display equipment is configured for bridge maintenance personnel or at a bridge maintenance office point. In this embodiment, the processor and the image display device are connected by a wireless network, for example, by a 4G or 5G network. The image acquisition module 1 and the audio acquisition module 2 are connected with the processor through electric wires.
The image acquisition module 1 is used for gathering the image information on the bridge expansion joint 3, can shoot all image information of 3 up end at bridge expansion joint through a plurality of image acquisition modules 1. The audio acquisition module 2 is used for acquiring actual sound spectrum information on the bridge expansion joint 3, and the actual sound spectrum information at different positions on the bridge expansion joint 3 can be acquired through the plurality of audio acquisition modules 2. The image display device is used for displaying image information. In this embodiment, the pan-tilt camera is a NetCam phenological monitoring network camera, the sound pickup is a MX-K20 digital waterproof sound pickup, and the image display device is a mobile phone mobile terminal.
The image acquisition module 1 sends acquired image information to the processor, the audio acquisition module 2 sends acquired actual sound spectrum information to the processor, the processor is used for comparing the actual sound spectrum information with a preset healthy sound spectrum information range, when the actual sound spectrum information exceeds the healthy sound spectrum information range, it is judged that the bridge expansion joint 3 has a health problem, at the moment, the processor sends the image information for judging that the bridge expansion joint 3 is healthy to the image display device, bridge maintenance personnel preliminarily judge unhealthy reasons according to the image of the bridge expansion joint 3 displayed by the image display device, and take corresponding maintenance measures.
Specifically, as shown in fig. 2 and 3, a first fixing frame 4 is installed across the bridge right above the bridge expansion joint, the height of the fixing frame is ensured not to affect the passing vehicle, and the image acquisition module 1 is installed on the first fixing frame 4. And a second fixing frame 5 is arranged under the bridge expansion joint in a crossing manner, and the audio acquisition module 2 and the processor are arranged on the second fixing frame 5. Preferably, the first fixing frame 4 and the second fixing frame 5 both use high-strength aluminum magnesium alloy.
The health sound spectrum information range is obtained by analyzing sound spectrum information of a large number of bridge expansion joints collected by a sound pickup on site in an earlier stage by workers in a health state.
As a more preferable embodiment, an unhealthy image classification model is also preset in the processor, the image classification model is a model obtained by learning of workers according to historical data of unhealthy images of different types of bridge expansion joints by combining big data, when it is determined that a health problem occurs in the bridge expansion joint 3, the processor inputs image information for determining that the bridge expansion joint 3 is healthy to the unhealthy image classification model, and the unhealthy image classification model outputs a corresponding unhealthy image type at the moment, so that bridge maintenance personnel can directly take corresponding maintenance measures.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The system for monitoring the health condition of the bridge expansion joint based on the audio and video is characterized by comprising an image acquisition module (1), an audio acquisition module (2) and a processor, wherein the image acquisition module (1) and the audio acquisition module (2) are both connected with the processor, the image acquisition module (1) is used for acquiring image information on the bridge expansion joint (3), the audio acquisition module (2) is used for acquiring actual sound spectrum information on the bridge expansion joint (3), the processor is used for comparing the actual sound spectrum information with a preset health sound spectrum information range, and when the actual sound spectrum information exceeds the health sound spectrum information range, the health problem of the bridge expansion joint (3) is judged to occur;
span the bridge directly over the bridge expansion joint and be provided with first mount (4), span the bridge under the bridge expansion joint and be provided with second mount (5), image acquisition module (1) sets up on first mount (4), audio acquisition module (2) set up on second mount (5).
2. The system for monitoring the health condition of the bridge expansion joint based on the audios and videos as claimed in claim 1, further comprising an image display device, wherein the image display device is connected with the processor and is used for displaying the image information.
3. The system for monitoring the health condition of the bridge expansion joint based on the audios and videos as claimed in claim 2, wherein the processor is connected with the image display device through a wireless network.
4. The system for monitoring the health condition of the bridge expansion joint based on the audios and the videos as claimed in claim 3, wherein the image display device is a mobile phone terminal.
5. The system for monitoring the health condition of the bridge expansion joint based on the audio and video according to claim 1, wherein the image acquisition module (1) is a pan-tilt camera.
6. The system for monitoring the health condition of the bridge expansion joint based on the audios and the videos as claimed in claim 5, wherein the model of the holder camera is a NetCam phenological monitoring network camera.
7. The system for monitoring the health condition of the bridge expansion joint based on the audios and the videos as claimed in claim 1, wherein the audio acquisition module (2) is a sound pickup.
8. The system for monitoring the health condition of the bridge expansion joint based on the audios and the videos as claimed in claim 7, wherein the sound pickup is a MX-K20 digital waterproof sound pickup.
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| CN202123253453.XU CN216669193U (en) | 2021-12-22 | 2021-12-22 | Bridge expansion joint health condition monitoring system based on audio and video |
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| CN202123253453.XU CN216669193U (en) | 2021-12-22 | 2021-12-22 | Bridge expansion joint health condition monitoring system based on audio and video |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935373A (en) * | 2022-07-25 | 2022-08-23 | 南京大学 | Bridge expansion joint disease data simulation collection system |
| CN116105958A (en) * | 2023-04-10 | 2023-05-12 | 四川蜀工公路工程试验检测有限公司 | Road and bridge expansion joint impact resistance data simulation experiment system and method |
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2021
- 2021-12-22 CN CN202123253453.XU patent/CN216669193U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935373A (en) * | 2022-07-25 | 2022-08-23 | 南京大学 | Bridge expansion joint disease data simulation collection system |
| CN114935373B (en) * | 2022-07-25 | 2023-03-17 | 南京大学 | Bridge expansion joint disease data simulation collection system |
| CN116105958A (en) * | 2023-04-10 | 2023-05-12 | 四川蜀工公路工程试验检测有限公司 | Road and bridge expansion joint impact resistance data simulation experiment system and method |
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