SK6206Y1 - System for measuring deformation, especially of water gates and procedure for performing the measurement - Google Patents

Abstract

System for measuring deformation mainly water gate characterized in that the gate (10) are on the wall at intervals of several fixed bracket (21, 22, 23, 24, 25, 26), for the brackets (21, 22, 23,24 , 25,26) are mounted adjustable measuring plate (1, 2, 3, 4, 5, 6), then the top of the gate (10) is mounted pointing arm (9) with a laser rangefinder (8). At the bottom gate (10) is located reference point (7), located on the reference bracket (27). Procedure of measurement of deformations especially water gate is as follows: after the conclusion of the gate (10) without water filled reference measurement is started when the record focus position of the reference point (7) initial tilt arm (9) with a laser rangefinder (8) at no load condition gate (10), when the initial deformation is recorded in a state of no-load door (10). After the initial focus position measurement plates (1, 2, 3, 4, 5, 6). Subsequently, the gradual filling of water into the load lock chambers occurs door (10) due to the crushing force (11), then for each line of the laser beam emitted laser rangefinder (8) on a movable arm (9), the arm (9) is periodically horizontal moves and record the distance (12) when they hit a laser beam to the measuring edge of the measuring plate (1, 2, 3, 4, 5, 6). Distance (12) records the change in distance of the reflected light after being pushed over the edge of each grid plate (1, 2, 3, 4, 5, 6). Evaluation of distance (12) movable arm (9) from the initial position for all the measuring plate (1, 2, 3, 4, 5, 6) is obtained by deformation process incl. The actual measurement of deformation is made on a proposal in a few lines of static gates. Each line is the deformation measured in a number of measuring points and one reference point. In total, the available amount of data required for deformation. These are readily available in visual form. Exceeded the critical values is secured alarm system. The system allows continuous access to data measured at any time of measurement. Logging is also information about water levels and periodic measurements are processed during deformation depending on the level. The system also records and other supporting data - state opening of doors and temperature. This solution is applicable to the measurement, which can not be measured deformations using a laser scanner from dispersed and extensive grounds of the structure measured body inside the body and the effects of weather or other outside body.

Description

SK 6206 Υ1

Technical field

The technical solution relates to a system for measuring deformations, in particular water gates and other similar objects used on water structures and in industry.

BACKGROUND OF THE INVENTION

In the operation of gates on water structures, the difference in the forces applied to the gates' walls during the filling and discharge of the lock chambers results in gates deformation. Reliable and safe operation of the waterworks requires constant monitoring and recording of this deformation. If non-standard deformation values are detected outside the allowed calculated values, immediate intervention of the operator into the chamber operation is necessary. Strain gauge measurements are used to measure deformation. During the operation of the door, this measurement proved to be considerably unreliable. The measurement itself was influenced in addition to the measured quantity by several parasitic influences. It was mainly the effect of temperature on strain gauges, especially when filling the lock chamber. When the door was discharged in the part above the water level during the summer period to the ambient air temperature and then cooled relatively quickly by the rising water level during the filling, such rapid changes of temperature to the individual strain gauge sensors occurred that even temperature compensated tensiometer connection failed and the measurement system evaluated these effects as unauthorized deformations. The situation was similar in winter, when the gate was colder than the water in the lock. The effects of the shining sun alternately obscured and deflected by clouds in the sky on the deformation values were also observable.

The essence of the technical solution

These deficiencies of the prior art are largely eliminated by a system for measuring deformations, in particular water gates according to the invention, consisting in measuring the deformation of gates at specified measuring points using a laser light beam. This beam is transmitted and received by a reflection-evaluating source - a laser rangefinder located on the positioning arm at the top of the door and generates a single-line measurement.

As the laser rangefinder moves along the arm, the reflections of the laser light beam are identified sequentially from the individual measuring plates adjustable on the brackets mounted on the gates at the measuring points, and the distance of the moving arm from the initial position of the moving arm is recorded. light beam. This identifies the moment when the light ceased to reflect from the given measuring plate and started to reflect from the next measuring plate. As a result, the horizontal position of the measuring plate edge is accurately measured. After subsequent software processing, deformation at individual measuring points is detected.

Measurement procedure: After closing the door without water filling, the reference measurement is started. In this case, by measuring the position of the reference point, the initial tilt of the arm with the laser light source in the no-load state of the gates is recorded and the initial positions of the measuring plates are measured. When the water is gradually filled into the lock chamber, the loading of the gates occurs due to the deformation force. For each line, a laser light beam is transmitted, received and evaluated by a laser rangefinder on the movable arm. This arm moves periodically horizontally and the distance of the arm from the initial position of the movable arm is recorded when the laser light beam strikes the measuring edge of each measuring plate. This produces data for measuring the deformation at the measuring points on the measuring plates in one measuring line. These are numerically processed in the measuring system so that they result in the deformation of the gates at all measuring points. The measurement systems according to FIG. 1 is eight in the gate. Together, the water tower control tower is available in visual form forty-eight deformation data. Exceeding of critical values is monitored by alarm system.

The gate is equipped with a set of such line measuring points with plates and the total software processing of measured data is periodically measured the total deformation of the door. The measurement results are stored in a database and are immediately available in visual form. Exceeding of critical values is monitored by alarm system. The system allows permanent access to the data measured at any time of measurement.

SK 6206 VI

BRIEF DESCRIPTION OF THE DRAWINGS

In the picture no. 1 shows the initial state of one measuring line of the door without load at the moment of measuring the deformation of the measuring point of the measuring plate. The illustration shows the use of six measuring plates. The number may be arbitrarily different.

In the picture no. 2 shows the state at the moment of measuring the deformation of the measuring point of the measuring plate 3 after loading of the gates due to the water level pressure of the impregnated lock chamber.

EXAMPLES

The measurement of the deformation at the gate of the waterway lock chamber consists of using the measuring plates 1,2, 3,4, 5, 6, adjustable on the brackets 21, 22, 21, 24.25, 26 of the reference point 7 fixedly fixed on the reference bracket 27, the brackets 21, 22, 23, 24, 25, 26 are permanently attached to the lock chamber gate 10, at the top of the gate 10 a positioning arm 9 with a laser rangefinder 8 is located.

The measurement itself is carried out on the basis of a static design in four lines in each part of the door 10, in total in eight measurement lines. One measuring line consists of measuring plates 1, 2, 3, 4, 5, 6, brackets 21, 22, 23, 24, 25 for fixing the measuring plates 1, 2, 3, 4, 5, 6, reference point 2 located on the reference bracket 27 situated at the bottom of the door 10 with the laser rangefinder 8 movably mounted on the positioning arm 9. An arbitrary number of brackets 21, 22, 23, 24, 25, 26 are permanently attached to the wall 10. 22, 23, 24, 25, 26, adjustable measuring plates 1, 2, 3, 4, 5, 6 are adjustable. In the upper part of the door 10 a positioning arm 9 with a laser rangefinder 8 is fixed.

When the door 10 is closed without water filling, the reference measurement is started. Then, by measuring the position of the reference point 7, the initial inclination of the arm 9 with the laser rangefinder 8 in the no-load state of the gate 10 is recorded and the initial positions of the measuring plates 1, 2, 3, 4, 5, 6 are measured. the load of the gates 10 due to the deformation force 11. For each line, a laser light beam is transmitted by a laser rangefinder 8 on the movable arm 9. This arm 9 moves periodically horizontally and the distance 12 is recorded when the laser light beam strikes the measuring edge of each measuring plate 1. 2, 3, 4, 5, 6 (Figure 2 shows the situation at the moment of measurement of the plate 3). This provides data for measuring the deformation at the measuring points on the measuring plates 1, 2, 3, 4, 5, 6 in one measuring line. These are numerically processed in the measuring system so that they result in the deformation of the gates at all measuring points. The measurement systems of Figure 1 have a total of eight in the door 10. Together, the water tower control tower is available in visual form forty-eight deformation data. Exceeding of critical values is monitored by alarm system. The system allows permanent access to the data measured at any time of measurement. Data on water level heights (upper and lower) are also recorded, and during the periodic measurement, the dependence of the deformation of the gate 10 with the surface level is processed. The system also records additional auxiliary data - door opening states 10 and temperature. Periodic measurement takes place during the whole loading process of the gate 10 (during the entire loading and discharge cycle of the lock)

Industrial usability

The technical solution finds application in the measurement of deformations of water gates in water management, but also in industry when measuring deformations of other objects. This solution is also applicable for measurements where it is not possible to measure deformations using a laser scanner due to the rugged and extensive construction of the measured body inside the body and weather or other influences from outside the body.

PROTECTION REQUIREMENTS

Claims (2)

A system for measuring deformations, in particular of a water gate, characterized in that a plurality of brackets (21, 22, 23, 24, 25, 26) are attached to the wall at intervals on the door (10), 23, 24, 25, 26) are adjustable fixed measuring plates (1, 2, 3, 4, 5, 6), then in the upper part of the door (10) is fixed positioning arm (9) with laser rangefinder (8) and in the lower In the part of the door (10) is situated a reference point (7) located on the reference console (27). Method for carrying out a system measurement according to claim 1, characterized in that after closing the gates (10) without water inlet, a reference measurement is started, which is recorded by positioning the position re3 Initial tilt of the arm (9) with the laser rangefinder (8) - the laser light source and its reflection sensor in the no-load state (10), then the initial positions of the measuring plates (1, 2, 3, 4, 5, 6), consequently, as the water is gradually introduced into the lock chamber, the door (10) is loaded by the deformation force (11), then a 5 laser light beam is transmitted and evaluated for each line by a laser rangefinder (8) on the arm (9), this arm (9) moves periodically horizontally and the distance (12) is recorded when the laser light beam strikes the measuring edge of each measuring plate (1, 2, 3, 4, 5, 6), distance (12) is recorded by changing the distance of the reflected laser light beam after extending beyond the edge of the measuring plate (1, 2, 3, 4, 5, 6), by evaluating the distance (12) of the arm (9) from the starting position for all measurements ie, the plates (1, 2, 3, 4, 5, 6) 10 obtain a deformation waveform including.