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公开(公告)号：US20240177284A1
公开(公告)日：2024-05-30
申请号：US18072659
申请日：2022-11-30
CPC分类号： G06T7/0002 , B60S1/56 , G02B27/0006 , G06T7/11 , G06T7/143 , G06T2207/30168 , G06T2207/30252
摘要： The disclosed technology provides solutions for confirming a sensor cleaning event of a sensor mounted on an autonomous vehicle. A method of the disclosed technology can include steps for receiving a first plurality of image frames from an optical sensor; segmenting each of the first plurality of image frames into one or more interest regions; computing image statistics for each of the one or more interest regions; generating an image mask based on the image statistics for each of the one or more interest regions; receiving a second plurality of image frames from the optical sensor; applying the image mask to the second plurality of image frames; computing image statistics for each of the second plurality of image frames; and determining a status of a sensor cleaning event based on the image statistics for each of the second plurality of image frames. Systems and machine-readable media are also provided.
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公开(公告)号：US11708053B2
公开(公告)日：2023-07-25
申请号：US16992268
申请日：2020-08-13
发明人： Wesley Newhouse , Michael Shagam , Isaac Brown
CPC分类号： B60S1/546 , B60S1/3415 , B60S1/542
摘要： The subject disclosure relates to features that facilitate the automatic cleaning of optical sensors and in particular Light Detection and Ranging (LiDAR) sensors used in autonomous vehicle deployments. In some aspects, the disclosed technology includes a sensor cleaning apparatus having a housing, wherein the housing is configured to be rotatably coupled to an optical sensor, a wiper blade coupled to the housing, wherein the wiper blade is disposed at a downward angle relative to a top-surface of the optical sensor, and one or more nozzles disposed within the wiper blade, wherein the nozzles are configured to apply compressed gas to a surface of the optical sensor.
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公开(公告)号：US12130225B2
公开(公告)日：2024-10-29
申请号：US17742558
申请日：2022-05-12
IPC分类号： G01N19/02
CPC分类号： G01N19/02
摘要： The disclosed technology provides solutions for measuring seal characteristics and in particular, for precisely measuring frictional characteristics of a rotary seal. In some aspects, a seal testing apparatus of the disclosed technology can include a motor coupled to a proximal end of a shaft, a rotator coupled to a distal end of the shaft, and a housing disposed around an exterior surface of the rotator, wherein the housing is configured to removably receive at least one seal. In some aspects the seal-testing apparatus can further include a torque transducer coupled to the shaft, wherein the torque transducer is configured to measure a torque output of the motor.
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公开(公告)号：US20240034280A1
公开(公告)日：2024-02-01
申请号：US18354535
申请日：2023-07-18
发明人： Nathaniel Barrett Herse , Devin Cass , Michael Yagoda Shagam , Isaac Brown , Wesley Newhouse , Kevin Morris Sheppard
摘要： Fluid cleaning systems for cleaning AV sensors are disclosed herein. An example fluid cleaning system includes a reservoir storing a fluid. The fluid can flow from the reservoir to a heat exchanger. The heat exchanger can transfer heat generated by a part of the AV to the fluid, thereby improving cleaning efficacy. The part may be battery, motor, engine, sensor (e.g., the sensor to be cleaned with the fluid or another sensor), etc. The heat may be an unintended product of an operation of the part. The heat exchanger can use the heat to warm up the fluid and cool down the part. Additionally or alternatively, the fluid can be heated by another heat exchanger or a heater. The heater can generate heat intended for heating the fluid. The heater may be local to the sensor to be cleaned, e.g., the heater is closer to the sensor than the reservoir.
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公开(公告)号：US20240034278A1
公开(公告)日：2024-02-01
申请号：US17815674
申请日：2022-07-28
发明人： Nathaniel Barrett Herse , Devin Cass , Michael Shagam , Isaac Brown , Wesley Newhouse , Kevin Sheppard
CPC分类号： B60S1/487 , B60S1/56 , B60S1/50 , B60S1/52 , G01S7/4043
摘要： Liquid cleaning systems for cleaning AV sensors are disclosed herein. An example liquid cleaning system includes a reservoir storing a liquid. The liquid can flow from the reservoir to a heat exchanger. The heat exchanger can transfer heat generated by a part of the AV to the liquid, thereby improving cleaning efficacy. The part may be battery, motor, engine, sensor (e.g., the sensor to be cleaned with the liquid or another sensor), etc. The heat may be an unintended product of an operation of the part. The heat exchanger can use the heat to warm up the liquid and cool down the part. Additionally or alternatively, the liquid can be heated by another heat exchanger or a heater. The heater can generate heat intended for heating the liquid. The heater may be local to the sensor to be cleaned, e.g., the heater is closer to the sensor than the reservoir.
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公开(公告)号：US20240034279A1
公开(公告)日：2024-02-01
申请号：US17815981
申请日：2022-07-29
发明人： Hongen Tu , Wesley Newhouse , Brian Gilbert , Devin Cass , Jason Seitz
IPC分类号： B60S1/56
CPC分类号： B60S1/56
摘要： An AV sensor can be cleaned by charging a conductive layer over a sensor surface. The conductive layer may be positively or negatively charged and can repel contaminants having the same polarity away from the sensor. The charging of the conductive layer can be triggered by a determination that the sensor needs cleaning, which can be based on sensor data captured by the sensor or a different sensor. The charging of the conductive layer may include one or more charging cycles, each of which includes charging the conductive layer with two opposing polarities. Another conductive layer may be over the conductive layer. The other conductive layer can be charged with an opposite polarity from the conductive layer so that an electric field is present between the two conductive layers. A piezoelectric layer between the two conductive layers can vibrate under the electric field. The vibration can enhance the cleaning.
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公开(公告)号：US20230366807A1
公开(公告)日：2023-11-16
申请号：US17742558
申请日：2022-05-12
IPC分类号： G01N19/02
CPC分类号： G01N19/02
摘要： The disclosed technology provides solutions for measuring seal characteristics and in particular, for precisely measuring frictional characteristics of a rotary seal. In some aspects, a seal testing apparatus of the disclosed technology can include a motor coupled to a proximal end of a shaft, a rotator coupled to a distal end of the shaft, and a housing disposed around an exterior surface of the rotator, wherein the housing is configured to removably receive at least one seal. In some aspects the seal-testing apparatus can further include a torque transducer coupled to the shaft, wherein the torque transducer is configured to measure a torque output of the motor.
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公开(公告)号：US20230242081A1
公开(公告)日：2023-08-03
申请号：US18192490
申请日：2023-03-29
发明人： Wesley Newhouse , Michael Shagam , Isaac Brown
CPC分类号： B60S1/546 , B60S1/3415 , B60S1/542
摘要： The subject disclosure relates to features that facilitate the automatic cleaning of optical sensors and in particular Light Detection and Ranging (LiDAR) sensors used in autonomous vehicle deployments. In some aspects, the disclosed technology includes a sensor cleaning apparatus having a housing, wherein the housing is configured to be rotatably coupled to an optical sensor, a wiper blade coupled to the housing, wherein the wiper blade is disposed at a downward angle relative to a top-surface of the optical sensor, and one or more nozzles disposed within the wiper blade, wherein the nozzles are configured to apply compressed gas to a surface of the optical sensor.
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公开(公告)号：US20220234545A1
公开(公告)日：2022-07-28
申请号：US17722180
申请日：2022-04-15
发明人： Nathaniel Herse , Michael Shagam , Isaac Brown , Wesley Newhouse
摘要： Systems, methods, and computer-readable media are provided for implementing a self-cleaning sensor apparatus. In some examples, the self-cleaning sensor apparatus can include an optical sensor; an actuator system to rotate a rotary joint of the self-cleaning sensor apparatus; a manifold directly or indirectly coupled to the rotary joint, the manifold being configured to rotate in response to a rotation of the rotary joint, and wherein the manifold is disposed at an angle relative to a top or bottom surface of the optical sensor; and one or more nozzles disposed within the manifold, the one or more nozzles being configured to spray compressed air on an exterior surface of the optical sensor, the exterior surface including a surface of a lens of the optical sensor and/or a surface configured to send and receive optical signals associated with the optical sensor.
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