CN101029822A - Photoelectric sensing equipment for measuring building structure displacement - Google Patents
Photoelectric sensing equipment for measuring building structure displacement Download PDFInfo
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- CN101029822A CN101029822A CN 200610007997 CN200610007997A CN101029822A CN 101029822 A CN101029822 A CN 101029822A CN 200610007997 CN200610007997 CN 200610007997 CN 200610007997 A CN200610007997 A CN 200610007997A CN 101029822 A CN101029822 A CN 101029822A
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- building structure
- structure displacement
- electrooptical devices
- photoelectric
- measuring instrument
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Abstract
A photoelectric measure used for measuring displacement of buildings is prepared as integrating CMOS video camera head, analog surface array video camera head, PSD and CCD with electronic theodolite; utilizing switchover unit to connect above said components to be an integral unit for enabling to switch on said components totally or partially to carry out operation.
Description
Technical field
The present invention relates to field of measuring technique, particularly a kind of photoelectric measuring instrument that is used to measure building structure displacement.
Background technology
Along with lasting, the stable development of national economy, country all drops into huge fund and be used to build highway, railway and other engineering every year.In order to ensure construction quality, must test to engineering construction.The method of generally using is to fix a light emitting diode sign target on measured object at present, by photoelectric measurement instrument the luminous point of sign target is imaged on the photoelectric measurement instrument, and converting electric signal to, the real-time processing by computer software obtains measured object vertically and parameters such as the displacement of horizontal bidimensional, vibration then.The photoelectric measurement instrument that generally uses has two types at present: a class is that employing line array CCD (charge-coupled device) is made photoelectric commutator and the optical theodolite frame combines, be characterized in the sampling rate height, shortcoming is that sensitivity is very low, measure field need have AC power, and must carry out x, the correction of y bidimensional.And,, adopting the common optical theodolite lens distortion that is used for visual observation serious for big like this visual field because CCD length reaches tens millimeters, measuring error is very big.Another kind of is to adopt area array CCD simulation camera to make photoelectric commutator to constitute in conjunction with the long-focus optical lens, is characterized in highly sensitive, error is little, and its shortcoming is sampling rate low (about the highest 25HZ), and frequency response is poor.And since analog video camera usually based on a video output signals; and this output signal is to represent variation from black to white with very narrow scope range of the fluctuation of voltage; as long as therefore there is some millivolts external noise to disturb the vision signal that just can influence output; so output noise is big; image of poor quality; when doing the dynamic deflection measurement; image blurring; the time one journey curve distortion of measuring is serious; the data error that records is bigger, and this dynamic distortion characteristic is difficult to measure with conventional static weighing method.
Summary of the invention
The object of the present invention is to provide a kind of sampling rate height, antijamming capability is strong, and measuring error is little, the photoelectric measuring instrument of the measurement building structure displacement that picture quality is high.
The objective of the invention is to be achieved through the following technical solutions: a kind of photoelectric measuring instrument that is used to measure building structure displacement, it is to be made of in conjunction with electronic theodolite high-speed area array digital CMOS camera, falseface battle array camera, linear array and five kinds of electrooptical devices such as face battle array optoelectronic position sensitive element (PSD) and charge-coupled device (CCD).Various electrooptical devices are installed in the telescopical upper and lower of electronic theodolite respectively, are combined as a whole by switching device shifter, can while or part connection work.In telescopical eyepiece one side one group of catoptron is installed, an optical filtering is installed respectively in the same side of each electrooptical device.During work, the telescope by electronic theodolite the luminous point that is fixed on the LED marker target on the measured object by catoptron and optical filtering after, be imaged on respectively on five kinds of photoelectric sensors.The sign target is reflected as the variation of pixel with vertical displacement, the vibration that reaches horizontal bidimensional of measured object on photoelectric sensor.This variation is delivered to computing machine by data line with electric signal, and the real-time processing of machine software just can obtain measured object vertically and parameters such as the static state of horizontal bidimensional and dynamic displacement, vibration as calculated.Both can use several electrooptical devices to a measured target synchro measure simultaneously, also can switch to fast with certain electrooptical device and measure according to different detected objects.
The present invention has following good effect:
1, adopted in the electrooptical device of the present invention at a high speed and battle array digital CMOS camera, its sampling rate is up to 100 frame/seconds, for describing well as the dynamic characteristic of bridge, longspan structure thing, dynamic measurement error is little, and can carry out the measurement of amount of deflection.
2, owing to having adopted high-speed area array digital CMOS camera, little with the drift that service time and temperature variation produce.And digital signal is different based on a video output signals usually with analog video camera, and it is by specific threshold control, so antijamming capability is strong, image stabilization.
3, the present invention both can use several electrooptical devices to the measured object synchro measure owing to be provided with a plurality of electrooptical devices simultaneously, also can switch fast and measure with certain electrooptical device according to different detected objects.
Description of drawings
Fig. 1 is the principle of work block scheme of photoelectric measuring instrument.
Embodiment
A kind of photoelectric measuring instrument that is used to measure building structure displacement, it is installed in the telescopical upper and lower of electronic theodolite respectively with high-speed area array digital CMOS camera, falseface battle array camera, linear array and face battle array optoelectronic position sensitive element (PSD) and charge-coupled device (CCD), and is combined into one by switching device shifter.In telescopical eyepiece one side one group of catoptron is installed, in the same side of each electrooptical device an optical filtering is installed respectively and is got final product.During use, correct position is fixed a light emitting diode sign target on measured object, and this photoelectric measuring instrument is erected on the firm motionless reference position, adjusts the telescopic optical system of electronic theodolite, aiming light emitting diode sign target, and place cross curve center in the camera lens.Light from telescope penetrates through the reflector group reflection, behind optical filtering, is imaged on respectively on each electrooptical device again.Light emitting diode sign target is reflected as the variation of pixel with vertical displacement, the vibration that reaches horizontal bidimensional of measured object on electrooptical device.This variation is delivered to computing machine by data line with electric signal, and the real-time processing of machine software just can obtain measured object vertically and parameters such as the displacement of horizontal bidimensional, vibration as calculated again.
Claims (2)
1, a kind of photoelectric measuring instrument that is used to measure building structure displacement, it is characterized in that: it is to be made of in conjunction with electronic theodolite high-speed area array digital CMOS camera, falseface battle array camera, linear array and face battle array optoelectronic position sensitive element and five kinds of electrooptical devices of charge-coupled image sensor, various electrooptical devices are installed in the telescopical upper and lower of electronic theodolite respectively, be combined as a whole by switching device shifter, in telescopical eyepiece one side one group of catoptron is installed, an optical filtering is installed respectively in the same side of each electrooptical device.
2, a kind of photoelectric measuring instrument that is used to measure building structure displacement according to claim 1 is characterized in that: switching device shifter both can make various electrooptical devices connect work simultaneously, also can make various electrooptical devices partly connect work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610007997 CN101029822A (en) | 2006-03-03 | 2006-03-03 | Photoelectric sensing equipment for measuring building structure displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610007997 CN101029822A (en) | 2006-03-03 | 2006-03-03 | Photoelectric sensing equipment for measuring building structure displacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101029822A true CN101029822A (en) | 2007-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200610007997 Pending CN101029822A (en) | 2006-03-03 | 2006-03-03 | Photoelectric sensing equipment for measuring building structure displacement |
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| CN (1) | CN101029822A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013060218A1 (en) * | 2011-10-28 | 2013-05-02 | 中联重科股份有限公司 | Arm frame vibration displacement measurement method, system and concrete pump truck with the same |
| CN103090796A (en) * | 2011-11-01 | 2013-05-08 | 北京航天发射技术研究所 | Measuring system and measuring method for deflection and descending of rocket |
| CN103398694A (en) * | 2013-07-22 | 2013-11-20 | 中国科学院西安光学精密机械研究所 | Intersection measurement orienting device, system and method |
| CN104182758A (en) * | 2014-07-11 | 2014-12-03 | 北京航天发射技术研究所 | Image recognition method for rocket wind swinging measurement |
| CN104374538A (en) * | 2014-12-19 | 2015-02-25 | 广州大学 | Multi-dimensional vibration test system |
| CN104883510A (en) * | 2015-05-04 | 2015-09-02 | 联想(北京)有限公司 | Information processing method and electronic device |
-
2006
- 2006-03-03 CN CN 200610007997 patent/CN101029822A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013060218A1 (en) * | 2011-10-28 | 2013-05-02 | 中联重科股份有限公司 | Arm frame vibration displacement measurement method, system and concrete pump truck with the same |
| CN103090796A (en) * | 2011-11-01 | 2013-05-08 | 北京航天发射技术研究所 | Measuring system and measuring method for deflection and descending of rocket |
| CN103090796B (en) * | 2011-11-01 | 2017-03-15 | 北京航天发射技术研究所 | Rocket beat, the measuring system of sedimentation and method |
| CN103398694A (en) * | 2013-07-22 | 2013-11-20 | 中国科学院西安光学精密机械研究所 | Intersection measurement orienting device, system and method |
| CN104182758A (en) * | 2014-07-11 | 2014-12-03 | 北京航天发射技术研究所 | Image recognition method for rocket wind swinging measurement |
| CN104182758B (en) * | 2014-07-11 | 2018-11-30 | 北京航天发射技术研究所 | Image-recognizing method for the pendulum measurement of rocket wind |
| CN104374538A (en) * | 2014-12-19 | 2015-02-25 | 广州大学 | Multi-dimensional vibration test system |
| CN104883510A (en) * | 2015-05-04 | 2015-09-02 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104883510B (en) * | 2015-05-04 | 2019-02-05 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
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Open date: 20070905 |