CN2767955Y - Bridge detecting instrument system based on digital photographing technique - Google Patents

Bridge detecting instrument system based on digital photographing technique Download PDF

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Publication number
CN2767955Y
CN2767955Y CN 200520068675 CN200520068675U CN2767955Y CN 2767955 Y CN2767955 Y CN 2767955Y CN 200520068675 CN200520068675 CN 200520068675 CN 200520068675 U CN200520068675 U CN 200520068675U CN 2767955 Y CN2767955 Y CN 2767955Y
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China
Prior art keywords
bridge
digital camera
utility
model
end device
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200520068675
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Chinese (zh)
Inventor
赵启林
冯兆祥
吉林
陈斌
翟可为
Original Assignee
赵启林
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Priority to CN 200520068675 priority Critical patent/CN2767955Y/en
Application granted granted Critical
Publication of CN2767955Y publication Critical patent/CN2767955Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a bridge detecting instrument system based on digital photographing technique. A digital camera is arranged in a front end device, and an output terminal of the digital camera is connected with a computer which is a rear end device and is provided with special-purpose software. A display screen of the computer is directly connected with a signal of the digital camera, and a rotary device is arranged on a supporting rack of the digital camera and is used for receiving a control signal of the computer. The front end device also comprises a network sign which is arranged on the surface of a detected bridge. Thus, the whole bridge detecting system is formed. The utility model can early warn the stress variation state of the bridge, and can automatically find cracks and make the spacing positioning, the width measurement and the length measurement for the cracks. Thereby, the estimation result that the safety and the durability of the bridge are influenced by the cracks can be known. Thus, the utility model can frequently measure and monitor the bridge in a long distance in a non-contact mode, and the hidden troubles can be eliminated in time. The utility model solves the defects that the method in the prior art can not early warn and has the complex detecting effect. The utility model has the advantages of simple result, easy operation and low cost.

Description

Bridge detector system based on the digital vedio recording technology
Technical field
The utility model relates to a kind of detecting instrument, and is particularly a kind of based on the remote detection Bridge Crack of digital vedio recording technology and the system of measurement deflection of bridge span and strain.
Background technology
Before the present utility model, main for the detection of Bridge Crack earlier by naked eyes distant surveillance, finding that the place, crack sets up framing scaffold, on framing scaffold, utilize special instrument to carry out fracture width and measurement of length then, so be the crack to have occurred, lost the meaning of early warning, maintenance cost is increased greatly; When carrying out deflection of bridge span and strain measurement, mainly be to use sensor, but these sensor element collections is point information, the information of obtaining is few, imperfect, and cost is also high; So-called special instrument mainly is resistance strain gage and Fibre Optical Sensor etc., need be on tested pontic sticking construction, also need the wiring connection, difficulty of construction is big, and it is attractive in appearance to influence pontic, and all belongs to provisional, contact, short-range, can't be provided with for a long time, monitor in real time.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned defective, designs a kind of long-term, remote and bridge detection system that can early warning.
The technical solution of the utility model: remote bridge detector system, digital camera is arranged in the fore device, its major technique is characterised in that digital camera output is connected to the back-end device that special software is housed---computing machine, and computer screen directly is connected with the digital camera signal.
Advantage of the present utility model and effect are the STRESS VARIATION state of early warning bridge at a distance, automatically find the crack and it is carried out space orientation, width and measurement of length, thereby provide the assessment result of crack to the influence degree of bridge security and permanance, realize remote, contactless and regular measurement and monitoring, in time remove a hidden danger.The utility model result is simple, easy operating, and cost is also low.
Description of drawings
Fig. 1---the utility model is measured the principle schematic of Bridge Crack.
The principle schematic of Fig. 2---the utility model monitoring and measurement bridge strain.
Embodiment
As shown in Figure 1, 2, when carrying out deflection of bridge span and strain measurement, paste grid sign 5 on bridge 4 surfaces earlier, fore device comprises grid sign 5 and digital camera 1, digital camera 1 is communicated with the computing machine 2 of back-end device by connecting line, on the computing machine 2 special software has been installed, has been made the display screen of computing machine 2 replace the liquid crystal observation screen of digital camera 1 self; Simultaneously, special software can be controlled the lens zoom and the rotation of digital camera 1, and its rotation is to realize that by the whirligig 3 on control digital camera 1 support anglec of rotation can reach 180 degree.
When digital camera 1 is taken the picture that bridge is subjected to the load action front and back in same position, and by the change in location of net point in the grid sign 5, computing machine 2 just can calculate the amount of deflection numerical value of bridge surface 5 of these grid signs, can obtain surperficial strain information by corresponding conversion formula, so that in time take corresponding measure.
When the crack appears in bridge, can utilize computing machine 2 control whirligigs 3 earlier, 1 pair of bridge 4 surface of digital camera are scanned, crack location is accurately located; Pass through the lens zoom of the software control digital camera 1 of loading on the computing machine 2 then, can take the picture of location of cracks and measure the width in crack and length (by the rotation of control digital camera 1, up 180 degree, enough satisfied and measured needs), and resulting information analyzed, handles, automatically carry out crack harmfulness assessment according to the expert knowledge library that stores in the computing machine 2, draw preliminary suggestion, so that take next step countermeasure.
This shows that the utility model has expanded to the face formula with information acquisition by point type, obtain image comprised contains much information; Ageing good, can in time pinpoint the problems and be handled the generation that averts a calamity; Expert knowledge library has provided the entry evaluation report to crack harmfulness rapidly, provides reliable assurance for further solving the crack targetedly.

Claims (3)

1. based on the bridge detector system of digital vedio recording technology, digital camera is arranged in the fore device, it is characterized in that digital camera output is connected to the back-end device that special software is housed---computing machine, computer screen directly is connected with the digital camera signal.
2. the bridge detector system based on the digital vedio recording technology according to claim 1 is characterized in that whirligig being set, this whirligig receiving computer control signal on the digital camera support of fore device.
3. the bridge detector system based on the digital vedio recording technology according to claim 1 is characterized in that fore device comprises the grid sign, is arranged on the detected bridge surface.
CN 200520068675 2005-01-28 2005-01-28 Bridge detecting instrument system based on digital photographing technique Expired - Fee Related CN2767955Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520068675 CN2767955Y (en) 2005-01-28 2005-01-28 Bridge detecting instrument system based on digital photographing technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520068675 CN2767955Y (en) 2005-01-28 2005-01-28 Bridge detecting instrument system based on digital photographing technique

Publications (1)

Publication Number Publication Date
CN2767955Y true CN2767955Y (en) 2006-03-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520068675 Expired - Fee Related CN2767955Y (en) 2005-01-28 2005-01-28 Bridge detecting instrument system based on digital photographing technique

Country Status (1)

Country Link
CN (1) CN2767955Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080955A (en) * 2010-12-02 2011-06-01 中山大学 Moving load locating method used for bridge safety inspection
CN103322928A (en) * 2013-06-20 2013-09-25 中国矿业大学(北京) Similar model displacement field measuring system and method based on grid dot matrix
CN103615981A (en) * 2013-12-09 2014-03-05 重庆大学 Bridge displacement and expansion joint width remote-measuring system based on internet of things and lasers
CN103712586A (en) * 2014-01-09 2014-04-09 重庆桥都桥梁技术有限公司 Real-time automatic monitoring system of bent slope pier beam displacement
CN108106801A (en) * 2017-11-15 2018-06-01 温州市交通工程试验检测有限公司 Bridge tunnel disease non-contact detection system and detection method
CN109631782A (en) * 2017-10-05 2019-04-16 美国亚德诺半导体公司 System and method for measuring bridge gap

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080955A (en) * 2010-12-02 2011-06-01 中山大学 Moving load locating method used for bridge safety inspection
CN102080955B (en) * 2010-12-02 2012-12-05 中山大学 Moving load locating method used for bridge safety inspection
CN103322928A (en) * 2013-06-20 2013-09-25 中国矿业大学(北京) Similar model displacement field measuring system and method based on grid dot matrix
CN103322928B (en) * 2013-06-20 2016-01-20 中国矿业大学(北京) Based on similar model displacement field measuring system and the method for the Mesh Point Battle
CN103615981A (en) * 2013-12-09 2014-03-05 重庆大学 Bridge displacement and expansion joint width remote-measuring system based on internet of things and lasers
CN103712586A (en) * 2014-01-09 2014-04-09 重庆桥都桥梁技术有限公司 Real-time automatic monitoring system of bent slope pier beam displacement
CN103712586B (en) * 2014-01-09 2016-02-03 重庆桥都桥梁技术有限公司 Curved Ramp bridge pier Liang Sicheng real-time automatic monitoring system
CN109631782A (en) * 2017-10-05 2019-04-16 美国亚德诺半导体公司 System and method for measuring bridge gap
CN108106801A (en) * 2017-11-15 2018-06-01 温州市交通工程试验检测有限公司 Bridge tunnel disease non-contact detection system and detection method

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20060329

Termination date: 20120128