MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)

Description

G01C encompasses instruments and methods for determining spatial relationships and positioning information essential to surveying, navigation, and mapping applications. This subclass covers distance measurement technologies (ranging, leveling), bearing and direction determination (compasses, gyroscopes), navigation systems (inertial, satellite-based), and image-based positioning techniques (photogrammetry, videogrammetry). The classification includes both traditional surveying equipment and modern electronic/digital systems for geolocation, route guidance, and spatial data acquisition across terrestrial, marine, and aerial domains.

14 direct subcodes

Child Classifications

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G01C 1/00 Measuring angles
G01C 11/00 Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
G01C 13/00 Surveying specially adapted to open water, e.g. sea, lake, river or canal (liquid level metering G01F)
G01C 15/00 Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
G01C 17/00 Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (using gyroscopic effect G01C19/00)
G01C 19/00 Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
G01C 21/00 Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 (measuring distance traversed on the ground by a vehicle G01C22/00; control of position, course, altitude or attitude of vehicles G05D1/00; traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968)
G01C 22/00 Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
G01C 23/00 Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
G01C 25/00 Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass (testing, calibrating or compensating compasses G01C17/38)
G01C 3/00 Measuring distances in line of sight; Optical rangefinders (tapes, chains or wheels for measuring length G01B3/00; active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves, G01S17/48)
G01C 5/00 Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels (G01C3/20, G01C3/30 take precedence)
G01C 7/00 Tracing profiles (by photogrammetry or videogrammetry G01C11/00)
G01C 9/00 Measuring inclination, e.g. by clinometers, by levels