CN103434956B - Prior-warning device toppled over by tower crane - Google Patents
Prior-warning device toppled over by tower crane Download PDFInfo
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- CN103434956B CN103434956B CN201310409452.0A CN201310409452A CN103434956B CN 103434956 B CN103434956 B CN 103434956B CN 201310409452 A CN201310409452 A CN 201310409452A CN 103434956 B CN103434956 B CN 103434956B
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Abstract
The present invention relates to a kind of prior-warning device.Technical matters to be solved by this invention is to provide tower crane and topples over prior-warning device so that timely early warning is to reduce personnel and property damage in tower crane accident.The technical scheme adopted can be summarized as: prior-warning device toppled over by tower crane, comprise laser emission element, laser pick-off unit, data processing unit and alarm unit, the position of described laser emission element and laser pick-off unit is corresponding, the midperpendicalar line of laser emission element and laser pick-off unit is parallel to the tower body midperpendicalar of tower crane, laser emission element and laser pick-off unit are connected with data processing unit, and data processing unit is connected with alarm unit again; The offset deviation amount of laser beam on laser pick-off unit that data processing unit is launched for recording laser transmitter unit; Compared by the offset deviation safety value that offset deviation amount and data processing unit set, if offset deviation amount is greater than offset deviation safety value, trigger alarm unit is reported to the police; Be applicable to tower crane.
Description
Technical field
The present invention relates to a kind of prior-warning device, especially relate to a kind of tower crane and topple over prior-warning device.
Background technology
Along with the development of skyscraper, tower crane (abbreviation tower crane) application in building operation is increasingly extensive.Tower crane is as a kind of upper air installing equipment, and tower crane accident proportion in construction accident grows with each passing day, and in tower crane accident, personal casualty is huge.Its accident causation mainly tower crane Slip Hook, tower crane rotary collision, the tower crane arm tower crane that artificial or non-artificial reason causes such as to fracture is toppled over.Topple in accident at tower crane, personnel's major part of injures and deaths comes from the ground construction personnel in tower crane operating range, and they do not receive in advance and topple over early warning before tower crane is toppled over, and cannot take corresponding expeditious measures in time and cause personal injury and property damage.
Before tower crane is toppled over, there will be tower crane unstability, centre-of gravity shift, and whole toppling process is a continuation process.And the safety device of current tower crane all can only record tower crane operating record, prevent violation operation method, minimizing accident, can not be given warning in advance non-artificial misoperation and accident toppled over by the tower crane caused, safe early warning prompting can not be carried out in advance to the personnel in whole tower crane boundary of works area, and there is not tower crane and topple over prior-warning device.
Summary of the invention
Technical matters to be solved by this invention overcomes tower crane in prior art to topple over the shortcoming that there is not prior-warning device, provides a kind of tower crane to topple over prior-warning device, so that timely early warning is to reduce personal casualty and property damage in tower crane accident.
The technical solution adopted for the present invention to solve the technical problems is: prior-warning device toppled over by tower crane, comprise laser emission element, laser pick-off unit, data processing unit and alarm unit, the position of described laser emission element and laser pick-off unit is corresponding, the midperpendicalar line of laser emission element and laser pick-off unit is parallel to the tower body midperpendicalar of tower crane, laser emission element and laser pick-off unit are connected with data processing unit, and data processing unit is connected with alarm unit again;
The offset deviation amount of laser beam on laser pick-off unit that data processing unit is launched for recording laser transmitter unit; Compared by the offset deviation safety value that offset deviation amount and data processing unit set, if offset deviation amount is greater than offset deviation safety value, trigger alarm unit is reported to the police.
Preferably, the midperpendicalar line of laser emission element and laser pick-off unit overlaps with the tower body midperpendicalar of tower crane.
Concrete, laser emission element is Infrared laser emission unit.
Concrete, laser pick-off unit is infrared receiving diode array.
Further, data processing unit comprises the first control module, and the first control module is for controlling the start and stop of laser emission element.
Further, data processing unit comprises the second control module, and the second control module is for controlling the start and stop of laser pick-off unit.
As the preferred version of technique scheme, offset deviation safety value is inputted by user.
Preferably, alarm unit is audible alarm unit and/or light warning unit.
The invention has the beneficial effects as follows: structure is simple, be easy to realize, the high collimation of laser is applied to tower crane topples in early warning, can judge that tower crane topples over front center of gravity unstability, drift condition accurately, in advance early warning be made to toppling over of tower crane, the workmen in tower crane scope of work and tower crane operating personal can be allowed to flee from the scene of the accident in time, take Erosive Accident in advance, strengthen safety, reduce property damage, improve operating efficiency and shorten the construction period.The present invention is applicable to tower crane.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein, 1 is laser emission element, and 2 for laser pick-off unit, and 3 is data processing unit, and 4 is alarm unit, and 5 is the tower body midperpendicalar of tower crane, and 6 is tower crane.
Detailed description of the invention
Below in conjunction with drawings and Examples, describe technical scheme of the present invention in detail.
As shown in Figure 1, prior-warning device toppled over by tower crane of the present invention, comprise laser emission element 1, laser pick-off unit 2, data processing unit 3 and alarm unit 4, the position of described laser emission element 1 and laser pick-off unit 2 is corresponding, the midperpendicalar line of laser emission element 1 and laser pick-off unit 2 is parallel to the tower body midperpendicalar of tower crane, laser emission element 1 and laser pick-off unit 2 are connected with data processing unit 3, and data processing unit 3 is connected with alarm unit 4 again; Laser emission element 1 is for Emission Lasers bundle; The laser beam that laser pick-off unit 2 is launched for receiving laser emission element 1; The offset deviation amount of laser beam on laser pick-off unit 2 that data processing unit 3 is launched for recording laser transmitter unit 1; Compared by the offset deviation safety value that offset deviation amount and data processing unit 3 set, if offset deviation amount is greater than offset deviation safety value, trigger alarm unit 4 is reported to the police.
Laser technology is widely used because its high brightness, high collimation, high coherence and monochromaticity are good.Because laser beam frequency is consistent and energy is comparatively strong, can not bend when it moves in atmosphere, concentration degree is high, and scattering angle is minimum.When weather conditions are good, laser is through (after the distance transmission of thousands of meters, its energy is decayed hardly.In view of above characteristic, the drift condition utilizing laser measurement 2 positions can be considered.
Embodiment
Laser emission element 1 in this example is arranged at tower crane top, laser pick-off unit 2 is arranged at bottom tower crane, the position of laser emission element 1 and laser pick-off unit 2 is mated mutually, and preferably, the midperpendicalar line of laser emission element 1 and laser pick-off unit 2 overlaps with the tower body midperpendicalar of tower crane.Laser emission element 1 is comparatively large with the spacing of laser pick-off unit 2, can improve measurement accuracy rate.When laser beam has minimum deviation angle and when tower crane has a tiny inclination angle, the laser beam that laser pick-off unit 2 receives just has larger offset deviation amount, to catch tower crane in time toppling over information, sends early warning signal in time.
Laser emission element 1 is Infrared laser emission unit, and accordingly, laser pick-off unit 2 is infrared receiving diode array, and namely hundreds of laser Secondary Receive pipes are positive and negative connected respectively, composition induction arrays.When the laser beam directive infrared receiving diode array that infrared laser emission element sends, the positive and negative electric potential difference of corresponding infrared receiving diode changes, and data processing unit 3 can process by electric potential difference change the offset deviation amount obtaining laser beam.
Described alarm unit 4 is audible alarm unit and light warning unit, to send alarm signal by sound and light simultaneously, strengthens alert capability.
The principle of work of this device is:
When tower crane normally works without tilt state, the Infrared laser emission unit Emission Lasers bundle being installed on tower crane tower body top by level is installed on the infrared receiving diode array of tower crane tower body bottom to level, now data processing unit 3 records the electric potential difference of infrared receiving diode array, and the value of electric potential difference carries out data processing forming position data, the record position of laser beam on infrared receiving diode array now, and be labeled as initial point.If tower crane is without toppling over, then laser beam perseverance is incident on origin position, can not trigger alarm unit 4.
When tower crane center of gravity unstability, when toppling over, the original path of laser displacement that Infrared laser emission unit is launched, the therefore laser beam deviation from origin of infrared receiving diode array received.Infrared receiving diode array can produce powerful electric potential difference, and the electric potential difference of change is transferred to data processing unit 3 and carries out computing, calculates corresponding laser two pole adoptor and initial point relative position, obtains offset deviation amount.The offset deviation safety value that this offset deviation amount and data processing unit set compares, if offset deviation amount is greater than offset deviation safety value, trigger alarm unit 4 is reported to the police.Workmen in tower crane operating range can withdraw this region in time, takes emergency measures, and increases the settlement of accident crash time, reduces personal casualty and property damage.
If expeditious measures is proper, tower crane returns original position, the laser beam that Infrared laser emission unit sends incides again the origin position that infrared receiving diode array sets, laser two pole adoptor electric potential difference is restored, the offset deviation amount of data processing unit revert to below offset deviation safety value simultaneously, and trigger alarm unit 4 is removed and reported to the police.
Because the position of tower crane self or Infrared laser emission unit and infrared receiving diode array due to reasons such as ground shakes, small micro-ly to move can occur, or laser beam offsets because trace occurs the reasons such as external vibrations, now there is not tower crane to tilt, but cause the offset deviation amount that data processing unit can obtain laser beam, and cause alarm unit early warning mistakenly.In order to avoid wrong early warning, setting offset deviation safety value, when offset deviation amount is less than offset deviation safety value, can not trigger alarm unit, to increase the accuracy of early warning.
Data processing unit can there is the first control module controlling the start and stop of Infrared laser emission unit, and control the second control module of infrared receiving diode array start and stop, to improve the controlling of operating personal to Infrared laser emission unit and infrared receiving diode array.
In addition, laser pick-off unit 2 can be CCD(ChargeCoupleDevice, charge coupled device (CCD)), CCD directly can catch the location information of laser beam according to brightness, then through data processing unit displacement calculating departure.
Claims (8)
1. prior-warning device toppled over by tower crane, it is characterized in that, comprise laser emission element (1), laser pick-off unit (2), data processing unit (3) and alarm unit (4), the position of described laser emission element (1) and laser pick-off unit (2) is corresponding, the midperpendicalar line of laser emission element (1) and laser pick-off unit (2) is parallel to the tower body midperpendicalar of tower crane, laser emission element (1) and laser pick-off unit (2) are connected with data processing unit (3), and data processing unit (3) is connected with alarm unit (4) again;
The offset deviation amount of laser beam on laser pick-off unit (2) that data processing unit (3) is launched for recording laser transmitter unit (1); Compared by the offset deviation safety value that offset deviation amount and data processing unit (3) set, if offset deviation amount is greater than offset deviation safety value, trigger alarm unit (4) is reported to the police.
2. prior-warning device toppled over by tower crane as claimed in claim 1, and it is characterized in that, the midperpendicalar line of laser emission element (1) and laser pick-off unit (2) overlaps with the tower body midperpendicalar of tower crane.
3. prior-warning device toppled over by tower crane as claimed in claim 2, and it is characterized in that, laser emission element (1) is Infrared laser emission unit.
4. prior-warning device toppled over by tower crane as claimed in claim 3, and it is characterized in that, laser pick-off unit (2) is infrared receiving diode array.
5. prior-warning device toppled over by tower crane as claimed in claim 2, and it is characterized in that, data processing unit comprises the first control module, and the first control module is for controlling the start and stop of laser emission element (1).
6. prior-warning device toppled over by tower crane as claimed in claim 2, and it is characterized in that, data processing unit comprises the second control module, and the second control module is for controlling the start and stop of laser pick-off unit (2).
7. prior-warning device toppled over by tower crane as claimed in claim 2, and it is characterized in that, offset deviation safety value is inputted by user.
8. prior-warning device toppled over by tower crane as claimed in any of claims 1 to 7, it is characterized in that, alarm unit (4) is audible alarm unit and/or light warning unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310409452.0A CN103434956B (en) | 2013-09-10 | 2013-09-10 | Prior-warning device toppled over by tower crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310409452.0A CN103434956B (en) | 2013-09-10 | 2013-09-10 | Prior-warning device toppled over by tower crane |
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| Publication Number | Publication Date |
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| CN103434956A CN103434956A (en) | 2013-12-11 |
| CN103434956B true CN103434956B (en) | 2015-12-02 |
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| CN201310409452.0A Expired - Fee Related CN103434956B (en) | 2013-09-10 | 2013-09-10 | Prior-warning device toppled over by tower crane |
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Families Citing this family (10)
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| CN103708359B (en) * | 2013-12-17 | 2015-10-14 | 中联重科股份有限公司 | The jacking control method of tower crane, system and device, tower crane |
| CN103942914B (en) * | 2014-04-22 | 2016-01-06 | 广西大学 | A kind of articles from the storeroom based on technology of Internet of things topples over warning system |
| CN103935917B (en) * | 2014-05-06 | 2015-12-23 | 宁夏煤炭基本建设有限公司 | The anti-tipping annunciator of the vertical jacking of tower crane |
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| CN108046129A (en) * | 2017-12-14 | 2018-05-18 | 曾正扬 | A kind of tower crane inclination measuring device |
| CN108692705A (en) * | 2018-05-08 | 2018-10-23 | 合肥海银杆塔有限公司 | A kind of electric force pole tower of included measuring for verticality and inclination prompting function |
| CN108871270A (en) * | 2018-07-18 | 2018-11-23 | 天津大学 | A kind of Iron tower incline condition detection method |
| CN110849336A (en) * | 2019-11-27 | 2020-02-28 | 中国电建集团山东电力建设第一工程有限公司 | Tower body verticality measuring device and method for tower crane |
| CN112201013A (en) * | 2020-09-18 | 2021-01-08 | 国网福建省电力有限公司检修分公司 | Enclose pole device with prevent crossing line function |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SU578413A1 (en) * | 1976-06-30 | 1977-10-30 | Ордена Трудового Красного Знамени Центральный Научно-Исследовательский И Проектный Институт Строительных Металлоконструкций "Цниипроектстальконструкция" | Lattice tower |
| CN1632452A (en) * | 2004-12-23 | 2005-06-29 | 西安华腾光电有限责任公司 | High precision photoelectric measuring method and measuring apparatus for three-dimensional dip |
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| CN201729612U (en) * | 2010-07-12 | 2011-02-02 | 裴守龙 | Early warning device for the slope of outer sleeve frame of construction-purpose tower crane |
| CN102249151A (en) * | 2011-05-20 | 2011-11-23 | 林汉丁 | Laser display and supervision arrangement for declination angle of crane lift hook |
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| CN103434956A (en) | 2013-12-11 |
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Granted publication date: 20151202 Termination date: 20210910 |