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1. 发明授权

US10395124B2 Thermal image occupant detection 有权
公开(公告)号：US10395124B2
公开(公告)日：2019-08-27
申请号：US15475437
申请日：2017-03-31
申请人： Sajin George , Anant Aggarwal , Yang Li , Christian Breuer
发明人： Sajin George , Anant Aggarwal , Yang Li , Christian Breuer
IPC分类号： G06T7/00 , G06K9/00 , G06K9/46 , G06T7/254
摘要： Techniques are disclosed for detecting changes in occupancy as well as the number of occupants within an area. Detection of one or more occupants entering or leaving the area may be accomplished using a sensor having a quantity of pixels. The pixels may be configured to receive thermal energy emitted from one or more objects present in the area, including from one or more occupants. In response to receiving the emitted thermal energy, the sensor may be configured to create thermal images of the area. These thermal images may include a plurality of thermal intensity values associated with one or more pixels of the sensor. Two or more thermal images can be compared to identify a change in thermal intensity values. A change in the occupancy of the area may be determined by based on the identified change in thermal intensity values.

2. 发明申请

US20180239965A1 Occupant Position Tracking Using Imaging Sensors 审中-公开
公开(公告)号：US20180239965A1
公开(公告)日：2018-08-23
申请号：US15437521
申请日：2017-02-21
申请人： Anant Aggarwal , Yang Li , Sajin George , Christian Breuer
发明人： Anant Aggarwal , Yang Li , Sajin George , Christian Breuer
IPC分类号： G06K9/00 , H04N5/33 , G01J1/42 , G01J1/02
CPC分类号： G06K9/00771 , G01J1/0238 , G01J1/0266 , G01J1/4228 , G01S5/16 , H04N5/33
摘要： Techniques are disclosed for locating an occupant within an area. The system includes a first sensor including a first plurality of pixels for receiving a thermal energy input from the occupant within a first field of view (FOV) and a second sensor including a second plurality of pixels for receiving the input within a second FOV. A first distance from the occupant to the first sensor is determined based on the input received by at least one pixel of the first plurality of pixels and a first sensor location from an origin. A second distance from the occupant to the second sensor is also determined based on the input received by at least one pixel of the second plurality of pixels and a second sensor location relative to the origin. A coordinate position for the occupant relative to the origin is determined based on the determined first and second distances.

3. 发明申请

US20180285650A1 Thermal Image Occupant Detection 审中-公开
公开(公告)号：US20180285650A1
公开(公告)日：2018-10-04
申请号：US15475437
申请日：2017-03-31
申请人： Sajin George , Anant Aggarwal , Yang Li , Christian Breuer
发明人： Sajin George , Anant Aggarwal , Yang Li , Christian Breuer
IPC分类号： G06K9/00 , G06K9/46
CPC分类号： G06K9/00771 , G06K9/4642 , G06T7/254 , G06T2207/10048
摘要： Techniques are disclosed for detecting changes in occupancy as well as the number of occupants within an area. Detection of one or more occupants entering or leaving the area may be accomplished using a sensor having a quantity of pixels. The pixels may be configured to receive thermal energy emitted from one or more objects present in the area, including from one or more occupants. In response to receiving the emitted thermal energy, the sensor may be configured to create thermal images of the area. These thermal images may include a plurality of thermal intensity values associated with one or more pixels of the sensor. Two or more thermal images can be compared to identify a change in thermal intensity values. A change in the occupancy of the area may be determined by based on the identified change in thermal intensity values.

4. 发明授权

US10242269B2 Occupant position tracking using imaging sensors 有权
公开(公告)号：US10242269B2
公开(公告)日：2019-03-26
申请号：US15437521
申请日：2017-02-21
申请人： Anant Aggarwal , Yang Li , Sajin George , Christian Breuer
发明人： Anant Aggarwal , Yang Li , Sajin George , Christian Breuer
IPC分类号： H04N5/33 , G06K9/00 , G01J1/42 , G01J1/02 , G01S5/16
摘要： Techniques are disclosed for locating an occupant within an area. The system includes a first sensor including a first plurality of pixels for receiving a thermal energy input from the occupant within a first field of view (FOV) and a second sensor including a second plurality of pixels for receiving the input within a second FOV. A first distance from the occupant to the first sensor is determined based on the input received by at least one pixel of the first plurality of pixels and a first sensor location from an origin. A second distance from the occupant to the second sensor is also determined based on the input received by at least one pixel of the second plurality of pixels and a second sensor location relative to the origin. A coordinate position for the occupant relative to the origin is determined based on the determined first and second distances.

5. 发明授权

US09756706B2 Controlling a system that includes light-based communication (LCom)-enabled luminaires 有权
公开(公告)号：US09756706B2
公开(公告)日：2017-09-05
申请号：US14668689
申请日：2015-03-25
申请人： Christian Breuer , Anant Aggarwal , Barry Stout
发明人： Christian Breuer , Anant Aggarwal , Barry Stout
IPC分类号： H05B37/02 , G08C17/02 , H04B10/116 , H04M1/725 , H04L29/12 , H04W84/12
CPC分类号： H05B37/0272 , G08C17/02 , G08C2201/93 , H04B10/116 , H04L61/2007 , H04L61/6022 , H04M1/72533 , H04W84/12 , H05B37/0218 , H05B37/0236
摘要： Techniques are disclosed for controlling a system including one or more light-based communication (LCom)-enabled luminaires. In some cases, the system may include: one or more LCom-enabled luminaires; a light sensor configured to detect LCom signals emitted from the luminaires; a computing device operatively coupled to the light sensor and configured to decode data from the LCom signals; and a controller configured to control the light output from at least one of the luminaires. The techniques may include calibrating, detecting, or otherwise setting up the system, such that the computing device knows at least one of the unique identification and position of each luminaire in the system. Once the initial set up is completed, the system can be controlled in a number of ways, such as manually or automatically controlling the light output from the luminaires for various applications, such as providing ambient light that complements video or audio content.

6. 发明授权

US09628177B1 Adaptive baud rate in light-based communication 有权
公开(公告)号：US09628177B1
公开(公告)日：2017-04-18
申请号：US14870461
申请日：2015-09-30
申请人： Christian Breuer , Anant Aggarwal , Barry Stout
发明人： Christian Breuer , Anant Aggarwal , Barry Stout
IPC分类号： H04B10/00 , H04B10/116 , H04B10/079 , H04W4/02 , H04W28/02
CPC分类号： H04B10/116 , H04B10/07953 , H04B10/114 , H04W4/026 , H04W28/0215
摘要： Light-based communication (LCom) techniques are disclosed for adaptively adjusting the baud rate of a luminaire to optimize the LCom signal transmitted for an intended receiver device. The adaptive baud rate can be adjusted by a process that includes, for example: determining decoding parameters of the receiver device, the device including a camera for receiving LCom signals, and a display. The process further includes calculating a baud rate suitable for the receiver device based on the decoding parameters, and causing the baud rate to be set at the luminaire. The process may further include at least one of: verifying the baud rate at the receiver device; adjusting the decoding parameters of the receiver device if baud rate cannot be adjusted to meet a current configuration of decoding parameters; and prompting a user to rotate receiver device to improve orientation of the luminaire with respect to a raster direction of the camera.

7. 发明申请

US20150280829A1 MULTIPLE PANEL LUMINAIRES FOR LIGHT-BASED COMMUNICATION 有权
标题翻译：用于轻型通信的多个面板灯
公开(公告)号：US20150280829A1
公开(公告)日：2015-10-01
申请号：US14575493
申请日：2014-12-18
申请人： Christian Breuer , Anant Aggarwal , Barry Stout , Bernhard Siessegger
发明人： Christian Breuer , Anant Aggarwal , Barry Stout , Bernhard Siessegger
IPC分类号： H04B10/50 , H04B10/116 , H04B10/516
CPC分类号： H04B10/116 , G01C3/08 , G01C21/206 , G01S1/70 , G01S5/163 , G01S11/12 , G06K9/34 , G06K9/4661 , G06K9/6218 , G06T7/90 , G06T2207/10004 , G06T2207/20021 , H04B10/0795 , H04B10/114 , H04B10/1149 , H04B10/501 , H04B10/502 , H04B10/516 , H04B10/5563 , H04J3/10 , H04J14/086 , H04N5/3532
摘要： Multiple panel luminaires for light-based communication (LCom) and related techniques of use are disclosed. Each luminaire panel may comprise at least one solid-state light source, where the light sources are configured to output light. The luminaire may also include at least one modulator configured to modulate the light output of the light sources to allow for emission of LCom signals. The luminaire may also include a controller configured to synchronize timing of the LCom signals. In some cases, one panel may be configured to emit an LCom signal that is the inverse or duplicate of the LCom signal emitted from another panel. Panel signal inversion may be used to maintain a relatively constant level of light output from the luminaire and/or to create a virtual fiducial to provide orientation information. Using a multiple panel luminaire to transmit data may also result in improved data transmission rates and transmission reliability.
摘要翻译：公开了用于光通信的多面板灯具（LCom）和相关的使用技术。每个灯具面板可以包括至少一个固态光源，其中光源被配置为输出光。照明器还可以包括至少一个调制器，其配置成调制光源的光输出以允许发射LCom信号。照明器还可以包括被配置为同步LCom信号的定时的控制器。在一些情况下，一个面板可以被配置为发射LCom信号，其是从另一个面板发射的LCom信号的反向或重复的。面板信号反转可用于维持来自照明器的相对恒定的光输出水平和/或创建虚拟基准以提供取向信息。使用多面板照明器传输数据也可能导致数据传输速率和传输可靠性的提高。

8. 发明申请

US20150280821A1 TECHNIQUES FOR SPATIALLY RESOLVING RECEIVED LIGHT-BASED COMMUNICATION SIGNALS 有权
标题翻译：空间分辨光接收通信信号的技术
公开(公告)号：US20150280821A1
公开(公告)日：2015-10-01
申请号：US14575393
申请日：2014-12-18
申请人： Christian Breuer , Anant Aggarwal , Bernhard Siessegger
发明人： Christian Breuer , Anant Aggarwal , Bernhard Siessegger
IPC分类号： H04B10/116 , G06K9/34 , G06T7/00 , G06K9/62 , H04B10/50 , H04B10/079
CPC分类号： H04B10/116 , G01C3/08 , G01C21/206 , G01S1/70 , G01S5/163 , G01S11/12 , G06K9/34 , G06K9/4661 , G06K9/6218 , G06T7/90 , G06T2207/10004 , G06T2207/20021 , H04B10/0795 , H04B10/114 , H04B10/1149 , H04B10/501 , H04B10/502 , H04B10/516 , H04B10/5563 , H04J3/10 , H04J14/086 , H04N5/3532
摘要： Techniques are disclosed for spatially resolving received light-based communication (LCom) signals. In an example case where one or more LCom signals are in the field of view (FOV) of an LCom receiver, the image representing the FOV may be captured and segmented into non-overlapping cells, such as hexagonal, triangular, rectangular, or circular shaped cells. Each LCom signal may be interpreted as a unique pixel cluster comprising one or more of the cells. In some cases, the LCom signals in the FOV may be received from multiple LCom-enabled luminaires and/or a single LCom-enabled luminaire having multiple light panels. The benefits of being able to spatially resolve received LCom signals may include establishing a link with multiple LCom signals within the FOV of a receiver without conflict and/or determining the location of those LCom signals, improving signal to noise ratio, augmenting position information, enhancing sampling frequency, and improving communication speed.
摘要翻译：公开了用于空间分辨接收到的基于光的通信（LCom）信号的技术。在一个或多个LCom信号处于LCom接收机的视场（FOV）的示例情况下，可以捕获表示FOV的图像并将其分割成非重叠的小区，例如六边形，三角形，矩形或圆形形细胞。每个LCom信号可被解释为包括一个或多个单元的唯一像素簇。在某些情况下，FOV中的LCom信号可以从具有多个照明面板的多个启用LCom的灯具和/或具有单个LCom的灯具接收。能够空间解析接收的LCom信号的好处可以包括在接收机的FOV内建立与多个LCom信号的链接，而不会有冲突和/或确定这些LCom信号的位置，提高信噪比，增强位置信息，增强采样频率，提高通信速度。

9. 发明申请

US20150280820A1 TECHNIQUES FOR ADAPTIVE LIGHT MODULATION IN LIGHT-BASED COMMUNICATION 审中-公开
标题翻译：基于光通信的自适应调光技术
公开(公告)号：US20150280820A1
公开(公告)日：2015-10-01
申请号：US14575351
申请日：2014-12-18
申请人： Christian Breuer , Anant Aggarwal , Bernhard Siessegger
发明人： Christian Breuer , Anant Aggarwal , Bernhard Siessegger
IPC分类号： H04B10/116 , H04B10/40 , H04B10/524
CPC分类号： H04B10/116 , H04B10/40 , H04B10/524
摘要： Techniques are disclosed for adaptively modulating light in light-based communication (LCom). In accordance with some embodiments, the disclosed techniques can be used, for example, to dynamically adjust light modulation depth based, at least in part, on ambient light levels. In some cases, using the disclosed adaptive light modulation scheme, a given LCom-enabled luminaire may be configured to adjust the modulation depth dynamically and/or control the signal-to-noise ratio (SNR) such that the average light signal is kept constant, regardless of what LCom data is being transmitted. In some cases, the disclosed techniques can be used, for example, to dynamically adjust light modulation depth according to a given minimum light modulation depth assessed by measuring the ambient lighting conditions of the environment of the LCom-enabled luminaire. In some instances, an optimized or other target SNR can be provided using the disclosed techniques.
摘要翻译：公开了用于在基于光的通信（LCom）中自适应调制光的技术。根据一些实施例，所公开的技术可以用于例如至少部分地基于环境光水平动态地调整光调制深度。在一些情况下，使用所公开的自适应光调制方案，给定的启用LCom的灯具可被配置为动态调整调制深度和/或控制信噪比（SNR），使得平均光信号保持恒定，无论传输什么LCom数据。在一些情况下，所公开的技术可以用于例如根据给定的最小光调制深度来动态地调整光调制深度，所述最小光调制深度通过测量具有LCom功能的照明器的环境的环境照明条件来评估。在一些情况下，可以使用所公开的技术来提供优化的或其他目标SNR。

10. 发明授权

US10404924B2 Human presence detection techniques 有权
公开(公告)号：US10404924B2
公开(公告)日：2019-09-03
申请号：US14076372
申请日：2013-11-11
申请人： Christian Breuer , Anant Aggarwal
发明人： Christian Breuer , Anant Aggarwal
IPC分类号： H04N7/18 , H04N5/33 , G08B13/194 , G08B13/196
摘要： Techniques are disclosed for detecting stationary presence using IR sensor data. A number of IR images may be captured based on IR sensor data and these IR images may be averaged over various time intervals to calculate a number of average IR frames. The difference between these average IR frames provides a delta frame. A mask frame may be calculated as the summation of delta frames over time, and the value of the mask frame may be used to detect a stationary human presence even when no delta value is calculated. Alternatively, the mask frame may be used to calculate a background frame that represents the IR signature of stationary or cyclical objects within the scanned area that are not intended to trigger the presence detection system. A stationary presence may be determined by subtracting the background frame from a current average IR frame.

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