A measuring system comprising:
- a measurement pole equipped with a prism;
- a measuring device including a lens barrel having a scanning optical system for searching the prism and a distance-measuring optical system for measuring a distance to the prism, a driving section which rotates the lens barrel around a vertical axis in a horizontal direction and around a horizontal axis, an angle-measuring section for measuring a direction of the lens barrel, a memory section of the measuring device which stores, as a measurement data, the distance to the prism obtained by the distance-measuring optical system and the direction of the lens barrel obtained by the angle-measuring section, and a controlling section which controls the driving section, the scanning optical system and the distance-measuring optical system, and controls the driving section such that the lens barrel faces to a next pile driving point to be measured, and a transceiver of a measuring device side transmitting the measurement data stored in the memory section;
- and
- a portable radio transceiver which includes a memory section of a portable side storing a design data of a pile driving point, a display section displaying a guiding map, an imaging optical system, and a radio transceiver of a portable side conducting transmission with the transceiver of the measuring device side,
- wherein the measuring device transmits the measurement data stored in the memory section of the portable side to the portable radio transceiver,
- the portable radio transceiver is fixed on an axis of the measurement pole, calculates a difference between a current position information of the prism based on the received measurement data and a position information of a next pile driving point based on the design data of the memory section of the portable side, calculates a moving direction of the prism based on the current position information of the prism and a position information obtained at a previous receiving, calculates a moving direction of the portable radio transceiver by calculating an optical flow from a current image of the current position information and from a previous image of the previous position information based on the imaging optical system, calculates a gradient component from a directly facing direction of the portable radio transceiver with respect to the measuring device when the moving direction of the prism is different from the moving direction of the portable radio transceiver, amends the difference by means of the gradient component, and displays, on the display section, a space from the current position of the prism to the next pile driving point by means of the amended gradient component.