公开(公告)号：US20250110151A1

公开(公告)日：2025-04-03

申请号：US18832169

申请日：2023-01-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazufumi NISHIKAWA ,  Yuki MAEGAWA

IPC: G01P21/00 ,  G01P1/00 ,  G01P3/44

Abstract: A control system includes a first inertial sensor and a second inertial sensor. The first inertial sensor includes first to third angular velocity detection elements, first to third acceleration detection elements, and a first control unit. The first control unit calculates a first orientation signal. The second inertial sensor includes fourth to sixth angular velocity detection elements, fourth to sixth acceleration detection elements, and a second control unit. The second control unit calculates a second orientation signal. The first control unit calculates first detection axis information and generates a first reference signal based on at least one signal selected from fourth to sixth angular velocity signals and fourth to sixth acceleration signals. The first control unit generates a first corrected signal by correcting, using the first reference signal, at least one signal selected from first to third angular velocity signals and first to third acceleration signals.

公开(公告)号：US20250003750A1

公开(公告)日：2025-01-02

申请号：US18703565

申请日：2022-10-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazufumi NISHIKAWA ,  Yuki MAEGAWA

IPC: G01C19/5712 ,  G01P15/125 ,  G01P15/18

Abstract: A composite sensor includes angular velocity detection elements, acceleration detection elements, and a control circuit. The control circuit includes: acceleration averaging units; a decision processor for determining whether the composite sensor is in an applied state; an acceleration offset magnitude calculator; an acceleration corrector for applying an acceleration correction signal to an acceleration average signal to output a corrected acceleration signal; a signal processor for outputting a quaternion signal based on an angular velocity signal and a corrected acceleration signal; and an acceleration calculator for calculating acceleration information based on the quaternion signal. The acceleration offset magnitude calculator calculates, in accordance with the acceleration information when the composite sensor is not in the applied state, an acceleration correction signal when the composite sensor is in the applied state.