Abstract: Provided is a measuring apparatus using a beacon tag. More particularly, the measuring apparatus uses a beacon tag which is simple in configuration, easy to carry and use, and has low manufacturing cost, including: three reference beacon tags arranged in a specific space; a distance measuring unit including a distance measuring sensor measuring a distance to a target, a measurement direction detection unit detecting a measurement direction of the distance measuring sensor, and a measuring beacon tag provided in a low part of the distance measuring sensor; a position detection unit: calculating relative coordinates of the measuring beacon tag; and detecting relative coordinates of the target on the basis of the relative coordinates of the measuring beacon tag, the distance between the target and the distance measuring sensor, and the measurement direction of the distance measuring sensor.

Abstract: A device for determining the distance between two points on a surface or surfaces in 3-dimensional space, regardless of the orientation of the points relative to the device, provided an unobstructed line-of-sight between the device and both points. The device includes two distance measuring range finders that are joined by a hinge. The hinge includes a rotary encoder for measuring the angular displacement of the two sensors. By utilizing the distance measurements that each range finder relays, as well as the angular displacement measured by the rotary encoder, the microcontroller determines the final length between the two points and displays it through a display screen.