3 results about "Ground movement" patented technology

The application discloses a kind of laser cleaning system adaptive positioning device suitable for uneven ground movement, to solve the problem of the existing laser cleaning system in uneven ground operation due to the dynamic change of vehicle pose causes cleaning head positioning precision to decline.This application includes unmanned vehicle platform, high-precision lifting rotating platform and relative position sensing device.Relative position sensing device real-time acquisition laser cleaning head and the relative pose change between the surface of the workpiece to be cleaned, and the change is transmitted to the control system;Control system drives high-precision lifting rotating module or industrial robot controller to carry out multi-degree-of-freedom dynamic compensation, so that the relative position between cleaning head and workpiece surface remains constant.This application does not need to lay steel rail or slide, can effectively overcome the up-and-down jitter, pitch, roll and yaw disturbance caused by ground undulation, significantly improve the operation precision and stability of laser cleaning system under complex terrain, suitable for automatic laser cleaning of large structural parts.

The application provides a method and device for determining the mining range of the coal under buildings in a coal mining subsidence area. The method comprises the following steps: obtaining buildings in the mining subsidence influence range of a working face, dividing the working face into multiple blocks, and determining the ground movement and deformation data of the buildings after mining of each block; in the case where the sum of the ground movement and deformation data corresponding to all the blocks is greater than a preset threshold, sequentially deleting the blocks until the sum of the ground movement and deformation data corresponding to the remaining blocks is less than or equal to the preset threshold. The method determines the ground movement and deformation data of each block on the buildings, deletes the blocks in the manner of maximizing the remaining coal mining range, and accurately and quickly provides a coal mining scheme, so that the mining benefit is maximized under the premise of protecting the buildings.

The present disclosure relates to an earthquake prediction network design that is formed by the coordinated operation of an IoT (I)-based radon measurement / prediction network, in which the radon concentrations in outdoor environments and / or in soil gas near active fault lines are continuously monitored from a central location and in which the next radon level can be automatically predicted before measurement by means of the prediction algorithms used, together with seismographs that measure ground movements, and that comprises an early warning system in which the authorities (Y) are automatically informed in cases where earthquake risk is detected.