公开(公告)号：US20240042161A1

公开(公告)日：2024-02-08

申请号：US18245936

申请日：2021-09-17

Applicant: Carnegie Mellon University ,  University of Pittsburgh - Of the Commonwealth System of Higher Education

Inventor： Lu Li ,  Michael B. Schwerin ,  Howie Choset ,  Keith E. Cook ,  Jason Rose

IPC: A61M16/20 ,  A61M16/10 ,  G06N20/00

CPC classification number: A61M16/204 ,  A61M16/1005 ,  A61M16/205 ,  G06N20/00 ,  A61M2205/3372 ,  A61M2016/0027

Abstract: Provided is a system for operating a ventilator. The system includes a motorized proportional valve actuator including a stepper motor and an actuator. The actuator is connected to the stepper motor and configured to output pressurized air by controlling a pressure on a valve diaphragm. A conduit provides for fluid communication of the pressurized air to a breathing apparatus. A sensor arrangement is in fluid communication with the conduit between the at least one motorized proportional valve actuator and the breathing apparatus. The sensor arrangement includes: (i) an intake manifold configured to output a restricted flow of air from the pressurized air transported in the conduit, and (ii) a sensor device in fluid communication with an outlet of the intake manifold, the sensor device configured to measure an air pressure of the conduit based on the restricted flow of air.

公开(公告)号：US20230400292A1

公开(公告)日：2023-12-14

申请号：US18033677

申请日：2021-10-26

Applicant: Carnegie Mellon University

Inventor： Lu Li ,  Evan Schindewolf ,  Evan Harber ,  Howie Choset

IPC: G01B7/24 ,  B25J19/02

CPC classification number: G01B7/24 ,  B25J19/027

Abstract: Provided is a sensing device including an elastomer, a magnetic device positioned within the elastomer and associated with a magnetic field, and a magnetometer configured to sense a change in the magnetic field of the magnetic device. A method and computer program product are also provided.

公开(公告)号：US11933681B2

公开(公告)日：2024-03-19

申请号：US17277382

申请日：2019-09-23

Applicant: CARNEGIE MELLON UNIVERSITY

Inventor： Lu Li ,  H. Benjamin Brown ,  Michael Schwerin ,  Howie Choset

IPC: G01L1/00 ,  G01L1/22 ,  G01L5/1627

CPC classification number: G01L1/22 ,  G01L5/1627

Abstract: A force sensor comprising a force sensitive resistor having a common electrode and an electrode array separated by a force sensitive resistor material. The sensor includes a preload structure, where the preload structure imparts a force on the force sensitive resistor material. The sensor may also include a signal conditioning board to read a signal from the electrode array and convert it to a digital output.

公开(公告)号：US20220034731A1

公开(公告)日：2022-02-03

申请号：US17277382

申请日：2019-09-23

Applicant: CARNEGIE MELLON UNIVERSITY

Inventor： Lu Li ,  H. Benjamin Brown ,  Michael Schwerin ,  Howie Choset

IPC: G01L1/22 ,  G01L5/1627

Abstract: A force sensor comprising a force sensitive resistor having a common electrode and an electrode array separated by a force sensitive resistor material. The sensor includes a preload structure, where the preload structure imparts a force on the force sensitive resistor material. The sensor may also include a signal conditioning board to read a signal from the electrode array and convert it to a digital output.

公开(公告)号：US20230186496A1

公开(公告)日：2023-06-15

申请号：US17924570

申请日：2021-05-11

Applicant: Carnegie Mellon University

Inventor： Howie Choset ,  Michael B. Schwerin ,  Lu Li

IPC: G06T7/521 ,  G06T15/00 ,  G01C11/02 ,  G01C11/28 ,  H04N25/589

CPC classification number: G06T7/521 ,  G06T15/00 ,  G01C11/025 ,  G01C11/28 ,  H04N25/589 ,  G06T2207/10028 ,  G06T2207/10144

Abstract: Provided is a vision sensing device including a housing, a camera, a laser pattern generator, an inertial measurement unit, and at least one processor configured to project a laser pattern within the field of view of the camera, capture inertial data from the inertial measurement unit as a user moves the housing, capture visual data from the field of view with the camera as the user moves the housing, capture depth data with the laser pattern generator as the user moves the housing, and generate an RGB-D point cloud based on the visual data, the inertial data, and the depth data.