• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In order to determine the position of a track fixed point, it is connected to a three-dimensional scanning aid (12) which has a shape that deviates significantly from a track environment and that has a spatial enlargement of the fixed point (9). The track environment is permanently scanned by a rotating laser (5) moving continuously along the track and registered as a point cloud. From this, the characteristic shape of the Abtasthilfe (12) is determined using a software and it is automatically a calculation of the position of the associated fixed point (9) with respect to the track (3) and the registration of any correction values as a difference between the target and Actual position of the track.
    公开号:AT514502A1
    申请号:T570/2013
    申请日:2013-07-10
    公开日:2015-01-15
    发明作者:
    申请人:Plasser Bahnbaumasch Franz；
    IPC主号:
    专利说明:

    METHOD FOR DETERMINING A TRACK PLANT.
    The invention relates to a method for determining a track setpoint defined by a fixed point positioned next to a track by means of a laser transmitter movable on the track, which measures the position of the point of attachment to the track and registers a possible deviation of the target position with respect to an actual position of the track ,
    The trade journal "Rail Infrastructure", 31 (2003), pages 47 to 49, ("track machine guidance") discloses a method for determining a difference between a current track position and a fixed point. During the track measurement stationary and equipped with a laser transmitter front measuring vehicle is moved in the working direction up to ei¬nem next, geodetically measured fixed point, which is normally located on a catenary mast. The laser transmitter is set up with respect to the fixed point adjacent in the transverse direction of the track and thus brought into an exact desired position.
    It is known from AT 370 879 or AT 353487 to scan a tunnel wall by means of a rotary laser which is located on a track vehicle. Thus, it can be determined whether the track is still within a prescribed position in relation to the tunnel wall.
    The object of the present invention is now to provide a method of the type mentioned at the beginning, with which a simplified position detection of a fixed point defining the exact track position is possible.
    This object is achieved by a method of the generic type by the angeführ¬ten in the characterizing part of the main claim features.
    By combining these method steps, it is now possible for the first time to quickly and automatically recognize the position of the fixed point in the context of a continuous machine precedence. With the aid of the shape of the sampling aid, which deviates significantly from the track environment, a misinterpretation of the fixed point position can largely be ruled out. Further advantages of the invention are evident from the description of the drawings.
    In the following the invention will be described in more detail with reference to embodiments shown in the drawing. 1 shows a side view and FIG. 2 shows a front view of a measuring vehicle, FIG. 3 shows an enlarged view of a fixed point, FIG. 4 shows a point cloud formed from the laser scanning and FIGS. 5, 6 each show a further possibility ner training a to be connected to the benchmark sampling.
    A measuring vehicle 1 shown in FIGS. 1 and 2 can be moved by track carriages 2 on a track 3. At one end of a machine frame 4, a rotary laser 5 is arranged, which is rotatable by a drive 6 around an axis 7 extending in the machine longitudinal direction. Of the
    Rotary laser 5 is designed as a transmitter and receiver for laser beams and can thus calculate the exact distance to the reflection point and its spatial position. For this purpose, a corresponding software is provided in a computing unit 8, in Fig. 2, 3 a mounted on a catenary masts 10 and a Festpunkt 9 having Mastbolzen 11 is shown. On this a hemispherical, with a reflection-optimizing coating Verschnittesee 12 is plugged, the ball center is identical to the Festpunkt 9. Of course, here the three-dimensional scanning aid could also be spherical in shape, again for the sake of simplicity the Kugelmittel¬punkt should be identical to the fixed point 9, the point of symmetry clearly divergent from a track environment.
    As can be seen in FIG. 4, from the scanning of the track environment by the rotating laser 5 constantly rotating about the axis 7 and moving forward by the machine precedence, a sum of sampling points 14 called the point cloud 13 arises. On the one hand, in combination with the combination of range finding and spatial position detection the Ab¬tastpunkte 14 clearly visible to the catenary masts 10 and on the other hand also the hemispherical Abtasthil¬fe 12 reproducing sampling points 14 clearly distinguishable by the software. The software can - based on the circular outline of the sampling aid 12 - calculate the position of the center point and thus of the fixing point 9. In conjunction with the track gear 2 scanning an actual position of the track 3, possible correction values are calculated as the difference between a track target position defined by the fixed point 9 and the actual position and stored for later use by a tamping machine. A further advantageous embodiment of a three-dimensional scanning aid 12 would be in the form of a pyramid.
    FIGS. 5 and 6 show, by way of example, further possible sampling aids 12, which stand out clearly from the track environment and can be automatically located without damage by the rotary laser 5 or the software for evaluating the sampling points 14.
    The sample aid shown in FIG. 5 as a further example consists of a sleeve 15 which can be pushed onto the fixed point and which is connected by struts 16 to a concentric ring 17 and thus formed in a two-dimensional manner.
    Another two-dimensional variant of the sampling aid 12 according to FIG. 6 is designed as a star-shaped disk 18, which can be plugged onto the fixed point 9 by means of the centrically positioned sleeve 15.
    The scanning aids 12 are generally more easily locatable when they are clearly spaced from the adjacent traveling masts 10, whereby, in conjunction with the range finding by the rotating laser 5, the sampling points representing the catenary masts 10 can be readily filtered away.
    权利要求:
    Claims (1)
    [1]
    Method for determining a desired track position defined by a fixed point (9) positioned next to a track with the aid of a laser transmitter movable on the track (3), with which the position of the fixed point (9) to the track (3) is measured and any deviation the target position with respect to an actual position of the track (3) is registered, characterized by the following steps: a) each fixed point (3) is connected to a preferably three-dimensionally formed scanning aid (12), which deviates significantly from a track environment b) the track environment is permanently scanned by a rotating laser (5) moving continuously along the track and registered as a point cloud (13), c) from the point cloud (13 ), the characteristic form of the sampling aid (12) is determined with the aid of a software, and an automatic calculation of the position of the sample is carried out eten fixed point (9) with respect to the track (3) and the registration of any correction values as the difference between the desired and actual position of the track.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3019382B1|2020-06-03|
    EP3019382A1|2016-05-18|
    WO2015003772A1|2015-01-15|
    AT514502B1|2015-04-15|
    ES2799418T3|2020-12-17|
    PL3019382T3|2020-11-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20020078853A1|2000-12-22|2002-06-27|Quentin Holmes|Range-finding based image processing rail way servicing apparatus and method|
    DE102006046435A1|2006-09-22|2008-04-03|Dreier Lasermesstechnik Gmbh|Spherical measuring reflector for direction or distance measurement, has spherical body with support for optical element, where optical element serves for reflection of measuring beam|WO2019228742A1|2018-06-01|2019-12-05|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Method for determining an actual position of rails of a track|AT353487B|1977-05-31|1979-11-12|Plasser Bahnbaumasch Franz|MEASURING DEVICE FOR DISPLAY OR REGISTRATION OF THE PROFILE OF TUNNEL PIPES, THROUGHOUTS, ETC. CLOGGING|
    AT370879B|1980-02-13|1983-05-10|Plasser Bahnbaumasch Franz|TRACKABLE MEASURING VEHICLE AND METHOD FOR MEASURING THE LENGTH PROFILE OF TUNNEL TUBES|
    CH683703A5|1991-09-26|1994-04-29|Mueller J Ag|Method for track surveying.|
    DE9305787U1|1993-04-17|1994-05-26|Plasser Bahnbaumasch Franz|Portable measuring device for measuring the arrow heights of a track|
    GB0717403D0|2007-09-07|2007-10-24|Jarvis Plc|Track adjustment|AT517550B1|2015-07-20|2018-04-15|Hp3 Real Gmbh|Device for measuring the position of a track|
    AT518579B1|2016-04-15|2019-03-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Method and measuring system for detecting a fixed point next to a track|
    CN105866791B|2016-05-20|2018-06-08|中铁第一勘察设计院集团有限公司|The method that the vehicle-mounted LiDAR point cloud data precision of net raising is controlled using target|
    AT518692B1|2016-06-13|2019-02-15|Plasser & Theurer Exp Von Bahnbaumaschinen G M B H|Method and system for maintaining a track for rail vehicles|
    CN107792115B|2017-09-07|2019-01-04|中铁二院工程集团有限责任公司|It is a kind of to automatically extract both wired rail crest level methods using three-dimensional laser point cloud|
    CN110962876A|2018-09-30|2020-04-07|华东交通大学|Novel limit measurement method for railway I-shaped steel pole tower|
    CN110983883A|2019-12-23|2020-04-10|中国铁路设计集团有限公司|Construction measurement method for ballastless track of high-speed railway|
    CN112977535B|2021-05-11|2021-07-30|领视科技成都有限公司|Electrified railway clearance detection method and system based on laser scanning|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA570/2013A|AT514502B1|2013-07-10|2013-07-10|Method for determining a track target position|ATA570/2013A| AT514502B1|2013-07-10|2013-07-10|Method for determining a track target position|
    PL14732085T| PL3019382T3|2013-07-10|2014-06-14|Method for determining a target track location|
    ES14732085T| ES2799418T3|2013-07-10|2014-06-14|Procedure for determining a reference position of a track|
    PCT/EP2014/001615| WO2015003772A1|2013-07-10|2014-06-14|Method for determining a target track location|
    EP14732085.7A| EP3019382B1|2013-07-10|2014-06-14|Method for determining a target track location|
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