28-01-2021 дата публикации
Номер: US20210023719A1
A method for determining the joint positions of a kinematic chain uses only an imaging sensor and a computing unit. Characteristic features on the links and joints of the kinematic chain are identified and the joint positions are calculated from these visual measurements. The robot can be controlled without the use of joint encoders. A sensor system for monitoring the status of a kinematic chain includes a computing unit and an imaging sensor. The imaging sensor may be mounted to the kinematic chain or in the surroundings of the kinematic chain and monitors the kinematic chain and/or the surroundings of the kinematic chain. The computing unit determines a pose and/or movement parameters of at least one element of the kinematic chain by analyzing an output signal of the imaging sensor, in particular by analyzing characteristic features and determines a rotational joint position by analyzing the characteristic features. 110011511. A sensor system () for monitoring a status of a kinematic chain () having elements comprising links () and joints () , the sensor system comprising:{'b': '5', 'a computing unit (),'}{'b': 4', '41', '42', '5, 'at least one imaging sensor (, , ) operably connected to the computing unit (),'}{'b': 4', '41', '42', '1', '1', '1', '1, 'wherein the at least one imaging sensor (, , ) is adapted to be mounted to the kinematic chain () or to be mounted in the surroundings of the kinematic chain (), and is further adapted for monitoring at least a part of the kinematic chain () and/or the surroundings of the kinematic chain (),'}{'b': 5', '1', '3', '31', '32', '33', '38', '39', '4', '41', '42', '15', '11', '5', '11, 'and wherein the computing unit () is adapted to determine a pose and/or movement parameters of at least one element of the kinematic chain () by analyzing characteristic features (, , , , , ) in an output signal of the at least one imaging sensor (, , ), wherein the characteristic features are provided on at least one link (), at at least ...
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