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706 results about "Linear distance" patented technology

In this context, "linear distance" appears to mean "arc length"[*], while "angular distance" is presumably Δθ, the angular difference measured at the center of the circle. These quantities are indeed proportional, with the radius r as constant of proportionality.

Methods for assigning geocodes to street addressable entities

A method for assigning of geocodes to addresses identifying entities on a street includes ordering a set of entity geocodes associated with a street segment based on ordering criteria such as the linear distance of the geocodes along the length of the street segment. Assignable addresses are matched with the ordered geocodes creating a correspondence between a numerical order of the assignable addresses and a linear order of the ordered set of geocodes, consistent with address range direction data and street segment side data. The geocodes may be implicit or explicit, locally unique or globally unique. The set of entity geocodes may be obtained by identifying image features in aerial imagery corresponding to streets and buildings and correlating this information with data from a street map database.
Owner:TAMIRAS PER PTE LTD LLC

Self moving ground-handling robot and cleaning control method thereof

The present invention relates to the technical field of intelligent robots, in particular to a self-moving ground treatment robot and cleaning work control method thereof. The control method specifically comprises the following steps: step S0, a robot walks at random; step S1, the robot continues to walk at random after hitting an obstacle; step S2, if a control unit determines that the linear distance between two consecutive hits is in a range between a first threshold and a second threshold, then starting to execute small area cleaning work; otherwise, returning to step S0. The self-moving ground treatment robot of the present invention comprises a functional component, a walking unit, a drive unit, an obstacle sensor, and a control unit; the control unit controls the functional component and the drive unit to work according to the above control method. The present invention is suitable for cleaning corners or narrow strip areas.
Owner:ECOVACS ROBOTICS (SUZHOU ) CO LTD

Method of calibrating a motorized roller shade

Calibration of a motorized roller shade is accomplished by calculating a radius of a roller tube and thickness of a shade fabric rotatably supported by the roller tube. First, a lower edge of the shade fabric is moved to a first position at a first linear distance from a predetermined position. Second, a first number of revolutions of the roller tube between the first position and the predetermined position is determined. Next, the lower edge of the shade fabric is moved to a second position at a second linear distance from the predetermined position and a second number of revolutions between the second position and the predetermined position is determined. Finally, the tube radius and the fabric thickness are calculated from the first and second linear distances and the first and second numbers of revolutions. The tube radius and the fabric thickness are used to control the linear speed of the lower edge of the shade fabric.
Owner:LUTRON TECH CO LLC

Hands-free measuring instrument

A hands-free measuring instrument is disclosed. The disclosed instrument includes an upright member extending perpendicularly from a base member. At least one magnet is affixed to the instrument to facilitate the mounting thereof on a ferrous workpiece. The disclosed instrument includes at least one level disposed thereupon. Graduations may be provided on the instrument to facilitate measurement of linear distances. Embodiments are disclosed wherein an adjustable ruler arm is provided to facilitate the measurement and inscribing of arbitrary angles relative to the upright member.
Owner:NORELLI LOUIS A

Tubular ovality testing

A system for measuring diameter (inner and / or outer) of a tubular, the system in at least certain aspects including at least one linear distance measuring device with respect to which a tubular to be measured is movable, the at least one linear distance measuring device including a detector for detecting a surface of the tubular, the detector movably mounted to mount apparatus, the detector movable longitudinally along the surface of the tubular and movable axially in response to variation in diameter of the tubular, a rotatable head rotatable with respect to the tubular either outside of it or within it, the mount apparatus secured to the rotatable head, at least one signal production apparatus secured to the mount apparatus or head, and in communication with the linear distance measuring device, the at least one signal production apparatus for producing a signal indicative of distance between said detector and a known point, and transmitting apparatus for transmitting said signals to processing equipment for determining diameter of the tubular; and in certain aspects the linear distance measuring device is a laser device, electronic measurement device, acoustic measurement device, infrared measurement device, or linear variable differential transformer device.
Owner:VARCO I P INC
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