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Crane jib attitude and heading reference system calibration and initialization

A reference system, crane technology, applied in the field of attitude and heading reference systems, which can solve problems such as boom collision

Inactive Publication Date: 2012-10-24
HONEYWELL INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, although unlikely, it has been assumed that the crane booms of two or more tower cranes could collide

Method used

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  • Crane jib attitude and heading reference system calibration and initialization
  • Crane jib attitude and heading reference system calibration and initialization
  • Crane jib attitude and heading reference system calibration and initialization

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Embodiment Construction

[0016] The following detailed description is merely exemplary in nature and is not intended to limit the invention or the application and uses of the invention. The word "exemplary" is used herein to mean "serving as an example, instance or illustration". Thus, any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. All embodiments described herein are exemplary embodiments provided to enable those skilled in the art to design or use the invention, and not to limit the scope of the invention as defined by the claims. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. In this regard, although the attitude and heading reference system is described herein as being implemented for tower cranes, it will be appreciated that the system may be implemented for other typ...

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Abstract

The invention relates to crane jib attitude and heading reference system calibration and initialization. Methods and apparatus are provided for calibrating and initializing / aligning an attitude and heading reference system of a crane jib. Magnetometer measurements are generated using a magnetometer that is attached to the crane jib, while crane jib maneuvers are performed including crane jib slewing. The magnetometer measurements are supplied to a processor that is configured to generate magnetometer calibration parameters using the magnetometer measurements and to initialize and align a plurality of filters.

Description

technical field [0001] The present invention relates generally to attitude and heading reference systems, and more particularly to a method of calibrating and initializing an attitude and heading reference system for a boom of a crane. Background technique [0002] Tower cranes are used in a variety of environments. Two of the more common environments are construction sites and shipyards due to the combination of height and lift capacity offered by this type of crane. Typically, a tower crane includes a foundation, a mast and a crane boom. The base is fixed to the ground and is also connected to the mast. The slewing unit is attached to the mast and is used to rotate the crane. The crane jib includes, inter alia, a load bearing section, a counter jib section, an operator's cab, and the like. [0003] Typically, the load bearing portion of the crane boom carries the load. The balance boom part is connected to the load bearing part, and bears a counter weight to balance t...

Claims

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Application Information

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IPC IPC(8): B66C13/16B66C13/18B66C13/46
CPCG01R33/028G01R33/0035B66C23/26B66C13/46
Inventor V.L.巴格什瓦M.R.埃尔格斯马B.马哈德夫B.E.弗利S.P.切恩奇瓦
Owner HONEYWELL INT INC
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