4 results about "Levelling" patented technology

The invention belongs to the technical field of geophysics and surveying and mapping science, and discloses an earthquake and level settlement association method and system based on spatial overlay analysis, and the method comprises the following steps: S1, obtaining level measurement data and earthquake directory data; s2, constructing a level line buffer area according to the leveling data; s3, processing the leveling data to obtain level settlement data, and generating a level settlement change point layer according to the level settlement data; s4, performing spatial interpolation according to the level settlement change point diagram layer and the level line buffer area to obtain a settlement change thermodynamic diagram; s5, generating a hierarchical symbolization seismic map layer according to the seismic directory data; s6, the settlement change thermodynamic diagram and the hierarchical symbolization seismic map layer are displayed in an overlapped mode, and an earthquake and level settlement correlation analysis result is obtained. The method disclosed by the invention intuitively reveals and evaluates the spatial correlation between the vertical deformation field and the seismic activity, and provides a brand new technical tool for the conjoint analysis of the earthquake and the level settlement.

The application provides an intelligent leveling system based on three GNSS coordinate cooperation and a measuring method thereof. The system comprises an intelligent level gauge, a first intelligent leveling rod and a second intelligent leveling rod. All of them are provided with independent GNSS modules and can obtain three-dimensional coordinates in real time. The level gauge can obtain the front and rear sight distances through coordinate inversion and calculate the sight distance difference, and then send the sight distance difference to the display screens of the two rods to guide the first rod to be in place. The leveling rod is provided with an inclination sensor, which can automatically switch among the three states of movement guidance, rod monitoring and righting recording according to the inclination angle, and automatically record the three-dimensional coordinates to form an electronic notebook at the righting moment. The leveling rod can be switched to an RTK mobile station through one key, which is used for layout and recovery of buried leveling points and accurate recovery of temporary leveling points the next day. When the leveling rod is righted for the first time after station migration, the coordinates are automatically compared to realize the detection and tracing of the centimeter-level error. The system can synchronously collect the geodetic height and normal height of each rod point, automatically calculate the height anomaly value and cumulatively form a local height anomaly model.

The invention relates to a sea-crossing bridge settlement deformation observation system based on multi-modal fusion, and the system comprises a Beidou / GNSS monitoring subsystem which is used for constructing a whole-line settlement deformation monitoring control network, takes the geodetic height variable quantity as a settlement value, and comprises a reference network formed by monitoring reference points, a monitoring network formed by working base points and monitoring points, and a monitoring network formed by the working base points and the monitoring points; the reference network and the monitoring network form a monitoring control network; the inclination measurement subsystem comprises an inclination angle sensor which is arranged on an approach bridge pier of the sea-crossing bridge and is used for measuring a non-uniform settlement value of the approach bridge pier; the static leveling subsystem comprises static leveling gauges mounted on a main tower pier and a side pier of the sea-crossing bridge and is used for measuring a relative settlement value of the main tower pier and the side pier and a non-uniform settlement value of the main tower pier; and the data processing subsystem is respectively connected with each subsystem and is used for receiving, storing and calculating data. According to the method, multiple technologies are fused, multi-modal data are formed, and full-period multi-dimensional settlement deformation observation of ultra-wide water area bridge construction is achieved.

The utility model relates to the technical field of engineering surveying, in particular to a leveling auxiliary device which comprises a bottom plate, a connecting column, a supporting body, a fixing assembly, a distance measuring plate and a holder base, the bottom plate is used for being fixedly connected with the top of a measuring tripod, the bottom of the connecting column is fixedly connected with the top of the bottom plate, and the supporting body is arranged at the top of the connecting column. The fixing assemblies are symmetrically arranged on the two sides of the supporting body with the axis of the supporting body as the axis, the two distance measuring plates are connected with the two fixing assemblies in a clamped mode respectively, and the holder base is arranged at the top of the supporting body. According to the leveling auxiliary device, through the characteristics of automatic level adjustment, real-time sight distance display and reminding, multifunctional integration, portability and the like, a more accurate, efficient and convenient solution is provided for leveling in the fields of engineering construction, topographic surveying and mapping and the like.