FIELD SUPPORTING SYSTEM OF SPATIAL INFORMATION WITH SURVEY CONTROL POINT USING NFC TAG

摘要

The present invention provides a field supporting system for spatial information of a survey control point using a near field communication (NFC) or smart tag, capable of quickly providing the spatial information. According to the present invention, the field supporting system for spatial information of survey control point comprises a national control point measurement device (310′) using known equidistant observation, which includes: a laser distance measurer to calculate a precise distance in a remote place; a focusing lens to focus an object and a collimation line; an automatic leveling device to automatically locate a bubble tube when the bubble tube enters an allowed radius; a liquid crystal display (LCD) to display a proper distance to an observer; a data connection cable to transmit and receive data; an eyepiece for observation; a data storage device to calculate distance data and store the processed data; a data processing device to calculate the distance and process attribute information; a collimation line device to acquire an observation data corresponding to a level rod; and an objective lens to view a distant object. The measurement device (310′) includes a measurement target reflecting a laser beam (320′) irradiated from the measurement device (310′) to realize precise location measurement. The measurement target comprises: a connection member (100′) to control angle; and a reflective member (200′) including an indication part having one end with an acute end and coupled to the connection member (100′) to indicate a measurement target, a frame (220′) coupled to the other end of the indication part, and a reflective plate (230′) disposed on the front surface of the frame (220′) and displaying the survey control point thereon. The reflective plate (230′) is prevented from contamination through a predetermined contamination prevention processing means.