• 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:
    Procedure for the monitoring of movements and turns through the combined use of laser and video and system for its execution, the system consists of a system capable of measuring, continuously, movements and turns. The solution combines the use of two laser beams, which act as a fixed reference, a translucent panel in which lasers impact and in which three LEDs are located, and a video camera that records the three points of led light and the two points generated by the laser emitters. The procedure calculates the movements and turns taking as reference the two laser points. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2684134A2
    申请号:ES201730410
    申请日:2017-03-24
    公开日:2018-10-01
    发明作者:Miguel Ángel VICENTE CABRERA；Dorys Carmen GONZÁLEZ CABRERA；Jesús MÍNGUEZ ALGARRA
    申请人:Universidad de Burgos；
    IPC主号:
    专利说明:

    The measuring panel (2) and the video recording equipment (3) are located close to each other and can be covered by a housing (5), the measuring panel (2) being one of the sides of the housing (5), specifically the side to which the laser beams are projected (17).
    The laser emitting equipment (1) is composed of at least two laser emitters (6), each of which emits at least one laser beam (17) and a support (7). Said equipment (1) is located at a point that is located outside the structure under control and that can be considered fixed for the purposes of the monitoring operation to be carried out. The measuring panel (2) is composed of a translucent panel (8) and a support (9). The measuring panel (2) is located at the control point (14), that is, at the determined point whose movement is to be monitored in a structure. The measuring panel (2) is integral with the control point (14). Prior to the start of monitoring, the measuring panel (2) is placed at the control point (14) with the help, for vertical positioning, of an analog or digital level (13).
    With reference to Figure 2, the light emitted by the three LEDs (4) generates two LED points of light (4.1, 4.2, 4.3) on the translucent panel (8). The laser beams produced by the 15 laser emitters (6) are projected on the translucent panel (8), passing through it and leaving two laser points visible (10, 11). The light emitted by the LEDs (4) is of a different color than that emitted by the laser emitters (6). Therefore, five light points are projected on the translucent panel (8): the three LED light points (4.1, 4.2, 4.3) and the two laser points (10, 11). twenty
    With reference to figure 3, in the image of the measurement panel (2) as it has been processed by the computer, the values (P1, P2 and P3) assigned to the geometric centers of the point clouds are indicated corresponding to the three points of LED light (4.1, 4.2, 4.3). Points P1 and P2 are joined by an imaginary horizontal line. Points P2 and P3 are joined by an imaginary vertical line. The values (L1, 25 L2) assigned to the geometric centers of the point clouds corresponding to the two laser light points (10, 11) are also indicated.
    The image recording means (3) preferably comprise a video recording equipment, preferably a digital camcorder, which records the translucent panel and therefore the three LED light points (4.1, 4.2, 4.3) and the two laser points (10, 11). The video recording equipment 30 (3) is positioned so that the axis of its lens is substantially orthogonal to the measurement panel (2).
    2. For each image in the sequence, the pixels belonging to each of the five points of the image are identified and separated, that is, the points corresponding to the three points of LED light (4.1, 4.2, 4.3) and two laser points (10, 11). From this operation, five data tables are obtained, in each of which, for each of said five points, their X and Y 5 coordinates and their corresponding color identification are indicated. Thus, each table is defining a cloud of points, meaning a set of data related to the coordinates and color of each of the points (4.1, 4.2, 4.3, 10, 11).

    3. For each image of the sequence, the geometric center of each of the five point clouds is obtained. The result of this operation is five points, defined by their X and Y coordinates. Depending on the color of the pixels that make up each of the point clouds, it is possible to determine if the geometric center obtained belongs to an LED light point (4.1, 4.2, 4.3) or to a laser point (10, 11).
     fifteen
    4. For the first image of the image sequence, the values P1, P2 and P3 are assigned to the geometric centers of the point clouds corresponding to the three LED light points (4.1, 4.2, 4.3), with the following double allocation criteria:
    - P1 represents the minimum values of X and Y.
    - The Y coordinate of P2 is smaller than the Y coordinate of P3. twenty
    5. For the first image of the sequence of images, the values L1 and L2 are assigned to the geometric centers of the point clouds corresponding to the two laser points (10, 11), with the following assignment criteria:
    - The X coordinate of L1 is smaller than the X coordinate of L2.
    6. For each of the other images in the sequence, the values P1, P2 25 and P3 are assigned by proximity to the image immediately before in time. In the same way, the values L1 and L2 are assigned to these images.
    7. For each image of the sequence, the following three measurements are obtained: vertical position "v", horizontal position "u" and inclination "
    权利要求:
    Claims (10)
    [1]

    1. System for monitoring structures by measuring the movement of a control point (14) with respect to a fixed point (12), comprising a measuring panel (2) characterized in that it comprises first light emission means (1 ), about 5 seconds light emission means (4) integral with the measuring panel (2) and image recording means (3).
    [2]
    2. System according to claim 1, characterized in that the first light emitting means (1) comprise a laser emitter (1) comprising at least two laser emitters (6). 10
    [3]
    3. System according to claim 1, characterized in that the second light emitting means (4) comprise at least three LEDs (4).
    [4]
    4. System according to claims 2 and 3, characterized in that the laser emitting equipment (1) projects two laser light points (10, 11) on the measuring panel (2) and that each of the at least three diodes LED (4) projects a point of LED light (4.1, 4.2, 4.3) 15 on the measuring panel (2)
    [5]
    5. System according to claim 4, characterized in that the two laser light points (10, 11) are of a different color than the LED light points (4.1, 4.2, 4.3).
    [6]
    6. System according to claim 5 characterized in that the image recording means (3) are integral with the control point (14). twenty
    [7]
    System according to claim 6, characterized in that the image recording means (3) are placed with the axis of their lenses substantially orthogonal to the measuring panel (2) and with their field of vision substantially covering the dimensions of the measuring panel ( 2).
    [8]
    System according to claim 7, characterized in that it comprises a housing in whose interior the image recording means (3) and one of whose faces is the measuring panel (2) are arranged.
    [9]
    9. Procedure for monitoring structures by measuring the movement of a control point with respect to a fixed point, executed by the system of claim 8, comprising a first phase of placement and connection of the 30 system components and a second processing phase of the data obtained by the system, characterized in that the first phase comprises placing in the field of vision the image recording means (3) the points of light projected by the first and second light emission means (1 , 4) and because the second phase comprises generating a sequence of images of the measuring panel (2) from the images captured by the recording equipment (3), recording the time interval between two consecutive images, identifying the pixels corresponding to the points of light produced by the first light emitting means (1) and by the second light emitting means (4), and associating dic hos pixels coordinates X and Y.
    [10]
    10. Method according to claim 9, further comprising:
    - Obtain, for each image of the sequence, a data table for each light point in said image, each of said data tables indicating the X and Y coordinates and identifying the color of the light points (4.1, 4.2, 4.3, 10, 11) of the images.
    - For each image of said sequence and starting from the at least one data table, obtain the geometric center of the light points of the images and determine if the geometric center 10 obtained comes from the first light emission means (1) or of the second light emission means (4).
    - For the first image of the image sequence, assign values (P1, P2, P3) to the geometric centers corresponding to the points of light (4.1, 4.2, 4.3) from the second light-emitting means (4) and other values (L1, L2) to the geometric centers 15 corresponding to the points of light (10, 11) from the first light emitting means (1); and for each of the other images in the sequence, assign, by proximity to the immediately preceding image in time, the same values corresponding to the geometric centers of their respective points of light.
    - For each image of the sequence, obtain the measurements of vertical position, horizontal position 20 and inclination, referring to the points of light (4.1, 4.2 and 4.3) coming from the second means of light emission (4),
    - For each image of the sequence except the first one, obtain the measurements of vertical displacement, horizontal displacement and rotated angle, referring to the points of light (4.1, 4.2 and 4.3) coming from the second light emission means (4). 25
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    同族专利:
    公开号 | 公开日
    ES2684134B2|2019-10-10|
    ES2684134R1|2018-11-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1278758B|1964-12-22|1968-09-26|Precitronic|Device for measuring the bending and torsional loads on a ship|
    NO301999B1|1995-10-12|1998-01-05|Metronor As|Combination of laser tracker and camera based coordinate measurement|
    JP3737455B2|2002-06-13|2006-01-18|飛島建設株式会社|Displacement measuring device|
    KR20070066541A|2005-12-22|2007-06-27|재단법인 포항산업과학연구원|3 dimensional displacement measurement apparatus of structure using digital image processing and the method thereof|
    CN201364143Y|2008-12-30|2009-12-16|中铁大桥局集团武汉桥梁科学研究院有限公司|Bridge moving displacement measuring device based on machine vision|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201730410A|ES2684134B2|2017-03-24|2017-03-24|SYSTEM AND PROCEDURE FOR THE MONITORING OF STRUCTURES|ES201730410A| ES2684134B2|2017-03-24|2017-03-24|SYSTEM AND PROCEDURE FOR THE MONITORING OF STRUCTURES|
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