CN101055259A - Bridge bottom crack monitoring and alarming method and device - Google Patents

Abstract

Translated fromChinese

本发明公开了一种桥梁底面裂缝监测与报警方法，该方法包括如下过程：在桥梁下面适当距离安装能够沿桥梁长度和宽度方向移动的视频采集设备，通过计算机控制视频采集设备移动和进行视频数据采集，视频采集设备获得的视频数据传输到所述的计算机；利用计算机对采集的数据进行处理和判断，确实桥梁底面是否有裂缝发生和发育情况；计算机监控中心根据裂缝发生发育情况，以及桥梁安全准则对桥梁的健康状况进行判断，在出现安全隐患时进行报警提示。这种方法能够进行实时监测和报警，以便及时采取补救措施。

The invention discloses a method for monitoring and alarming cracks on the bottom surface of a bridge. The method includes the following steps: installing a video acquisition device capable of moving along the length and width directions of the bridge at an appropriate distance under the bridge, and controlling the movement of the video acquisition device by a computer and recording video data. Acquisition, the video data obtained by the video acquisition equipment is transmitted to the computer; use the computer to process and judge the collected data, and confirm whether there are cracks on the bottom surface of the bridge; The guidelines judge the health status of the bridge, and give an alarm when there is a safety hazard. This approach enables real-time monitoring and alarms for timely remedial action.

Description

Bridge bottom crack monitoring and alarm method and device

Technical field

The present invention proposes a kind of bridge bottom crack monitoring and safety alarming method in the bridge health monitoring field, with the crack genesis and development situation of comprehensive monitoring bridge bottom surface, reaches timely safe early warning forecast, reduces the generation of bridge collapse accident.

Background technology

Bridge is being brought into play very important effect as the important component part of main artey of communications in national economic development and social development.Health with the people is the same; bridge also the time regular meeting pathology takes place; wherein the generation of bridge bottom crack is that one of key character of health problem appears in bridge with growing; in time catch this information and warning; can in time take corresponding remedial measures; avoid healthy continuation of bridge to worsen, even collapse, with protection people's the security of the lives and property.

At present to the main monitoring method of bridge bottom crack be utilize binoculars under bridge with manually observing, obvious this method poor reliability is difficult to carry out long-term observation.In recent years, fast development along with camcorder technology, digital camera technology, computer technology, the price of video appliances and computing machine constantly descends, someone has proposed to utilize the video acquisition technology to monitor the imagination of bridge bottom crack situation, their idea is: a video capture device is installed in certain appropriate location at the bottom of bridge, as digital camera or video camera, carry out videoscanning at the bottom of allowing video capture device to bridge, to observe crack situation at the bottom of the bridge.But the position of video capture device is fixed in this method, and the distance of the observed bridge basal surface of its distance position is mostly distant, thereby the non-constant of the video data that is collected, even utterly useless.

Summary of the invention

At the problems referred to above that prior art exists, first purpose of the present invention is to provide a kind of monitoring and alarm method of bridge bottom crack, with the generation and the developmental state of timely monitoring bridge bottom crack.

Second purpose of the present invention also is to provide a kind of monitoring and warning device of bridge bottom crack, the generation of bridge bottom crack and developmental state monitored and reported to the police being used for.

In order to realize first purpose of the present invention, the present invention adopts following technical scheme: a kind of bridge bottom crack monitoring and alarm method, and this method comprises following process:

(1) suitable distance below bridge, the slide rail that extends along the bridge length direction is installed in bridge width direction both sides, installing between two slide rails can be along the horizontal link of slide rail slip, also be equipped with on the slide rail and drive the drive unit that described horizontal link moves along described slide rail, the video capture device that can slide along link is installed on described horizontal link and is driven second mobile device that video capture device slides, described video capture device towards the bridge bottom surface to gather the video data of bridge bottom surface;

(2) by computer control described first mobile device and second mobile device are slided, make video capture device in bridge bottom along moving on bridge length and the Width, and the control of video collecting device carries out video data acquiring, and the video Data Transmission that video capture device obtains is to described computing machine;

(3) utilize computing machine that the data of gathering are handled and judge whether the bridge bottom surface has the crack to take place and developmental state really;

(4) the bridge health condition is reported to the police, and computer monitoring center is according to crack genesis and development situation, and the bridge security criterion judges the health status of bridge, carries out alarm when potential safety hazard occurring.

In order to realize second purpose of the present invention, adopt following technical solution: a kind of bridge bottom crack monitoring and warning device, it is characterized in that: be included in below the bridge suitably distance, in bridge width direction both sides the slide rail that extends along the bridge length direction is installed, being equipped with between two slide rails can be along the horizontal link of slide rail slip; On described at least one slide rail, install and drive first mobile device that described horizontal link slides along slide rail; At described horizontal link second mobile device that video capture device and the described video capture device of driving towards the bridge bottom surface slide along horizontal link is installed; Also comprise a computing machine, be used to control first and second mobile devices and move and control the work of frequency modulation collecting device, and collect the data that described video capture device collects data are handled and analyzed, and control is reported to the police.

Described video capture device can be digital equipments such as Digital Video or digital camera.

Described video capture device and described computing machine can adopt wire communication or wireless communication mode to carry out communication.

The present invention is by installing slide rail and horizontal link at bridge bottom surface certain distance, utilize the computer control video capture device to carry out moving of both direction in length and breadth in the bridge bottom, utilize a video capture device can finish video data acquiring to whole bridge bottom surface, carry out data analysis and processing by computing machine, judge that the crack takes place and developmental state, can monitor in real time and report to the police, so that in time adopt remedial measures.

Description of drawings

The composition synoptic diagram of Fig. 1 video capture device;

The drives structure synoptic diagram of Fig. 2 video capture device;

Fig. 3 video acquisition data transmission, processing, analysis and Stored Procedure figure.

Embodiment

With the arch bridge be below example the invention will be further described, to help understanding content of the present invention.

Embodiment 1

As depicted in figs. 1 and 2, suitable distance below an arch bridge, the groove shape slide rail 2 that extends along the bridge length direction is installed in bridge 1 Width both sides, between two slide rails 2, be equipped with and constitute horizontal link along the slide bar 3 that groove shape slide rail slides, on the slide rail thereinmotor 4 is installed, and devices (omitting among the figure) such as belt that is provided with along slide rail or chain, belt or chain are contained on the defeated or sprocket wheel of the belt of motor by its driving, the horizontal link that described slide bar 3 constitutes a then end is connected on belt or the sprocket wheel so that motor is driven along slide rail 2 when rotating slides, andmotor 4 constitutes first drive unit with belt or chain.Anothermotor 5 and a video capture device 6 also are installed on slide bar, andmotor 5 slides along slide bar by belt or chain drive video capture device 6 equally, constitutes second drive unit.Video capture device 6 can be Digital Video or digital camera, the bottom surface of its camera subtend bridge 1.It is principle that slide rail 2 can obtain distinct image apart from the distance of bridge 1 withvideo capture device 5, determines.Also comprise a computing machine 7, be used to control first and second mobile devices and move and control frequencymodulation collecting device 5 work, and collect the data that describedvideo capture device 5 collects data are handled and analyzed, and control is reported to the police.Computing machine 7 adopts wireless remote control or line traffic control is arranged with described first drive unit and second drive unit, also can adopt wired or wireless communication with video capture device.

A slide rail in the described slide rail 2 and described slide bar can also be provided with the tooth bar of straight-tooth for upper surface, described first and second drive units then all can be a motor-driven carrier, wheel on the motor-driven carrier is and the tooth bar meshed gears, described video capture device can be directly installed on the motor-driven carrier on the slide bar, and slide bar one end is fixed on the motor-driven carrier that is installed on the slide rail, utilizes mobile the make video capture device of motor-driven carrier on slide rail and slide bar to move along bridge length and Width.

Embodiment 2

See figures.1.and.2 equally, monitoring and early warning process to the bridge bottom crack genesis and development be described:

(1) installation of video capture device at the bottom of bridge: as shown in Figure 1, and bridge bottom crack monitoring and warning device are installed below bridge 1 according to the middle scheme of embodiment 1.

(2) driving of video capture device: as shown in Figure 1, mode by the wired or wireless remote control of computing machine 7 usefulness, control and drive first drive unit and second drive unit, litter 3 is vertically moved forward and backward at slide rail 2 upper edge bridges, and video capture device 6 is in horizontal litter 3 upper edge bridge lateral move left and right.Like this, only need a video capture device just can arrive the optional position of a bridge bottom surface, realize closely video data acquiring, improve the precision of video data acquiring greatly optional position, bridge bottom surface.

(3) control of video capture device: as shown in Figure 1, adopt wired or wireless command transfer technology, by computer monitoring center video capture device is sent steering order, the shift position of control of video collecting device and data acquisition.

(4) transmission of video acquisition data, processing, identification and storage: adopt wired or wireless data transmission technology with data transmission that video capture device collected to computer monitoring center, computer monitoring center is handled and is discerned view data, judges whether the bridge bottom surface has crack genesis and development situation.The video acquisition data volume is often bigger, can adopt collection once, transmission primaries, handle once, identification circle collection once, transmission, the handling problem that identifying schemes solves mass data, simultaneously, when having only crack genesis and development situation, storing relevant data just can solve the storage problem of mass data like this.As shown in Figure 3, the position of elder generation's initialization video capture device, utilize video capture device that video data acquiring is carried out in the bridge bottom surface, give computing machine with the video Data Transmission that collects, by computing machine vedio data is analyzed and discerned, judged whether that the crack takes place and grown, taken place and growth information do not have then mobile video acquisition equipment gather again to new position and judge if having then store the crack.

(5) bridge is healthy reports to the police: computer monitoring center is according to crack genesis and development situation, and the bridge security criterion is judged the health status of bridge, if according to the bridge security criterion, reach different safety standards, then correspondingly make different alarms, alarm can adopt the acousto-optic electric alarm.

Claims (9)

1, a kind of bridge bottom crack monitoring and alarm method is characterized in that this method comprises following process:

(1) suitable distance below bridge, the slide rail that extends along the bridge length direction is installed in bridge width direction both sides, installing between two slide rails can be along the horizontal link of slide rail slip, also be equipped with on the slide rail and drive the drive unit that described horizontal link moves along described slide rail, the video capture device that can slide along link is installed on described horizontal link and is driven second mobile device that video capture device slides, described video capture device towards the bridge bottom surface to gather the video data of bridge bottom surface;

(2) by computer control described first mobile device and second mobile device are slided, make video capture device in bridge bottom along moving on bridge length and the Width, and the control of video collecting device carries out video data acquiring, and the video Data Transmission that video capture device obtains is to described computing machine;

(3) utilize computing machine that the data of gathering are handled and judge whether the bridge bottom surface has the crack to take place and developmental state really;

(4) the bridge health condition is reported to the police, and computer monitoring center is according to crack genesis and development situation, and the bridge security criterion judges the health status of bridge, carries out alarm when potential safety hazard occurring.

2, bridge bottom crack monitoring as claimed in claim 1 and alarm method is characterized in that: every collection one secondary data of described video capture device is promptly to described computing machine transmission primaries, described computing machine promptly handle once with identification once.

3, bridge bottom crack monitoring as claimed in claim 1 or 2 and alarm method is characterized in that: described computing machine only just carries out data storing when having the crack to take place and growing.

4, bridge bottom crack monitoring as claimed in claim 1 or 2 and alarm method is characterized in that: described video capture device is data video camera or digital camera.

5, bridge bottom crack monitoring as claimed in claim 1 or 2 and alarm method is characterized in that: described computing machine is controlled by wired or wireless described first mobile device and second mobile device.

6, bridge bottom crack monitoring as claimed in claim 1 or 2 and alarm method is characterized in that: described computing machine and described video capture device adopt wired or wireless data transmission.

7, a kind of bridge bottom crack monitoring and warning device, it is characterized in that: be included in below the bridge suitably distance, in bridge width direction both sides the slide rail that extends along the bridge length direction is installed, being equipped with between two slide rails can be along the horizontal link of slide rail slip; On described at least one slide rail, install and drive first mobile device that described horizontal link slides along slide rail; At described horizontal link second mobile device that video capture device and the described video capture device of driving towards the bridge bottom surface slide along horizontal link is installed; Also comprise a computing machine, be used to control first and second mobile devices and move and control the work of frequency modulation collecting device, and collect the data that described video capture device collects data are handled and analyzed, and control is reported to the police.

8, bridge bottom crack monitoring as claimed in claim 7 and warning device is characterized in that: described video capture device is Digital Video or digital camera.

9, as claim 7 or 8 described bridge bottom crack monitoring and warning devices, it is characterized in that: described video capture device and described computing machine can adopt wire communication or wireless communication mode to carry out communication.

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