A method of reconstructing the spatial measurement network by mobile measurement transmitter for shipbuilding

[摘要] The workshop Measurement Position System (wMPS) is a distributed measurement system which is suitable for the large-scale metrology. However, there are some inevitable measurement problems in the shipbuilding industry, such as the restriction by obstacles and limited measurement range. To deal with these factors, this paper presents a method of reconstructing the spatial measurement network by mobile transmitter. A high-precision coordinate control network with more than six target points is established. The mobile measuring transmitter can be added into the measurement network using this coordinate control network with the spatial resection method. This method reconstructs the measurement network and broadens the measurement scope efficiently. To verify this method, two comparison experiments are designed with the laser tracker as the reference. The results demonstrate that the accuracy of point-to-point length is better than 0.4mm and the accuracy of coordinate measurement is better than 0.6mm.

[发布机构] State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin; 300072, China^1

[效力级别] 无线电电子学

[关键词] Coordinate measurements;Distributed measurement systems;Inevitable measurement;Large scale metrology;Measurement networks;Measurement positions;Shipbuilding industry;Spatial measurements