A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deflection simulation unit, calibration method and system for laser high-speed deflectometer
The invention belongs to the technical field of calibration, and discloses a deflection simulation unit, a calibration method and a system for a laser high-speed deflectometer. The deflection simulation unit comprises a rotating part; the driving mechanism is used for driving the rotating part to rotate, and the rotating surface of the rotating part is a horizontal plane when the rotating part is disc-shaped; when the rotating piece is cylindrical, the rotating shaft of the rotating piece is in a horizontal state. The method comprises the following steps: determining a simulated deflection value according to parameters of a deflection basin to be simulated, and obtaining an LDV speed theoretical value according to the parameters of the deflection basin to be simulated, a difference value between an LDV measuring point position and an installation angle and a driving speed of a laser high-speed deflectometer; determining a target rotating speed of the rotating part according to the relational expression and the LDV speed theoretical value; driving the rotating part to rotate according to the target rotating speed of the rotating part so as to simulate the simulated deflection value; receiving a measured deflection value measured by the laser high-speed deflectometer during rotation of the rotating part; and calibrating the laser high-speed deflectometer according to the measured deflection value and the simulated deflection value. The scheme has the advantages that the operation is simplified, the efficiency is improved, the dynamic balance stability is improved, the assembly mode is innovated, the sensitivity of state requirements is reduced, high-precision control and stability are realized, and the noise pollution of the system is reduced.
本发明属于校准技术领域，公开了一种用于激光高速弯沉仪的弯沉模拟单元、校准方法和系统。弯沉模拟单元包括转动件；驱动机构，用于驱动转动件自转，转动件为盘状时转动件旋转面为水平面；转动件为筒状时转动件回转轴处于水平状态。方法包括根据待模拟弯沉盆参数确定模拟弯沉值，根据待模拟弯沉盆参数、LDV测点位置与安装角度差值和激光高速弯沉仪的行驶速度得到LDV速度理论值；根据关系表达式和LDV速度理论值确定转动件的目标转速；按转动件的目标转速驱动转动件旋转以模拟该模拟弯沉值；接收激光高速弯沉仪在转动件旋转期间测量得到的测量弯沉值；根据测量弯沉值和模拟弯沉值对激光高速弯沉仪进行校准。本方案具有优点：简化操作与提高效率、提高动平衡稳定性、创新装配模式、降低对状态要求的敏感度、高精度控制与稳定性、减少系统噪声污染。
Deflection simulation unit, calibration method and system for laser high-speed deflectometer
The invention belongs to the technical field of calibration, and discloses a deflection simulation unit, a calibration method and a system for a laser high-speed deflectometer. The deflection simulation unit comprises a rotating part; the driving mechanism is used for driving the rotating part to rotate, and the rotating surface of the rotating part is a horizontal plane when the rotating part is disc-shaped; when the rotating piece is cylindrical, the rotating shaft of the rotating piece is in a horizontal state. The method comprises the following steps: determining a simulated deflection value according to parameters of a deflection basin to be simulated, and obtaining an LDV speed theoretical value according to the parameters of the deflection basin to be simulated, a difference value between an LDV measuring point position and an installation angle and a driving speed of a laser high-speed deflectometer; determining a target rotating speed of the rotating part according to the relational expression and the LDV speed theoretical value; driving the rotating part to rotate according to the target rotating speed of the rotating part so as to simulate the simulated deflection value; receiving a measured deflection value measured by the laser high-speed deflectometer during rotation of the rotating part; and calibrating the laser high-speed deflectometer according to the measured deflection value and the simulated deflection value. The scheme has the advantages that the operation is simplified, the efficiency is improved, the dynamic balance stability is improved, the assembly mode is innovated, the sensitivity of state requirements is reduced, high-precision control and stability are realized, and the noise pollution of the system is reduced.
本发明属于校准技术领域，公开了一种用于激光高速弯沉仪的弯沉模拟单元、校准方法和系统。弯沉模拟单元包括转动件；驱动机构，用于驱动转动件自转，转动件为盘状时转动件旋转面为水平面；转动件为筒状时转动件回转轴处于水平状态。方法包括根据待模拟弯沉盆参数确定模拟弯沉值，根据待模拟弯沉盆参数、LDV测点位置与安装角度差值和激光高速弯沉仪的行驶速度得到LDV速度理论值；根据关系表达式和LDV速度理论值确定转动件的目标转速；按转动件的目标转速驱动转动件旋转以模拟该模拟弯沉值；接收激光高速弯沉仪在转动件旋转期间测量得到的测量弯沉值；根据测量弯沉值和模拟弯沉值对激光高速弯沉仪进行校准。本方案具有优点：简化操作与提高效率、提高动平衡稳定性、创新装配模式、降低对状态要求的敏感度、高精度控制与稳定性、减少系统噪声污染。
Deflection simulation unit, calibration method and system for laser high-speed deflectometer
用于激光高速弯沉仪的弯沉模拟单元、校准方法和系统
LUO YINGCHAO (author) / AN HUAZHEN (author) / LI XIAOBING (author) / JING GENQIANG (author) / GUO HONGBO (author)
2024-10-22
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
| European Patent Office | 2023
Estimating "True" Variability of Traffic Speed Deflectometer Deflection Slope Measurements
| Online Contents | 2015
Estimating “True” Variability of Traffic Speed Deflectometer Deflection Slope Measurements
| Online Contents | 2015
Capturing the Moving Deflection Basin Under a Traffic Speed Deflectometer
| Springer Verlag | 2021