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51. 发明授权

US11628112B1 Autonomous hospital bed 有权
公开(公告)号：US11628112B1
公开(公告)日：2023-04-18
申请号：US17237905
申请日：2021-04-22
申请人： Ali Ebrahimi Afrouzi , Lukas Fath , Chen Zhang
发明人： Ali Ebrahimi Afrouzi , Lukas Fath , Chen Zhang
IPC分类号： A61G7/10 , A61G7/018
摘要： Provided is an autonomous hospital bed including: a frame; wheels; motors to drive the wheels; a controller in communication with the motors; sensors; a processor; a tangible, non-transitory, machine readable medium storing instructions that when executed by the processor effectuate operations including: capturing, with the sensors, depth data indicating distances to objects within an environment of the hospital bed and directions of the distances; capturing, with the sensors, movement data indicating movement distance and direction of the hospital bed; generating, with the processor, a map of the environment using the depth and movement data; generating, with the processor, a movement path to a first location; instructing, with the processor, motor drivers of the wheels to move the hospital bed along the movement path; and, inferring, with the processor, a location of the hospital bed within the environment as the hospital bed navigates along the movement path.

52. 发明授权

US11576543B2 Robotic vacuum with rotating cleaning apparatus 有权
公开(公告)号：US11576543B2
公开(公告)日：2023-02-14
申请号：US16533706
申请日：2019-08-06
申请人： Ali Ebrahimi Afrouzi , Soroush Mehrnia , Azadeh Afshar Bakooshli , Lukas Fath , Chen Zhang , Brian Highfill
发明人： Ali Ebrahimi Afrouzi , Soroush Mehrnia , Azadeh Afshar Bakooshli , Lukas Fath , Chen Zhang , Brian Highfill
IPC分类号： A47L9/28 , A47L11/40
摘要： A robotic surface cleaning device is provided, including a casing, a chassis, a set of wheels coupled to the chassis to drive the robotic surface cleaning device, a control system to instruct movement of the set of wheels, a battery to provide power to the robotic surface cleaning device, one or more sensors, a processor, rotating assembly, including a plate supported by a base of the casing, rotating mechanism to rotate the plate; and one or more cleaning apparatuses mounted to a first side of the plate.

53. 发明授权

US11458628B1 Method for efficient operation of mobile robotic devices 有权
公开(公告)号：US11458628B1
公开(公告)日：2022-10-04
申请号：US17109868
申请日：2020-12-02
申请人： Ali Ebrahimi Afrouzi , Chen Zhang
发明人： Ali Ebrahimi Afrouzi , Chen Zhang
IPC分类号： B25J9/16 , B25J11/00
摘要： A method for a robot to autonomously plan a navigational route and work duties in an environment of the robot including accessing historical sensor data stored from prior work cycles, determining the navigational route and work duties of the robot by processing probabilities based on the historical sensor data, enacting the navigational route and work duties by the robot, capturing new sensor data while the robot enacts the navigational route and work duties, processing the new sensor data, and altering the navigational route and work duties based on the new sensor data processed.

54. 发明授权

US11449064B1 Robotic fire extinguisher 有权
公开(公告)号：US11449064B1
公开(公告)日：2022-09-20
申请号：US16534898
申请日：2019-08-07
申请人： Ali Ebrahimi Afrouzi , Lukas Fath , Chen Zhang , Brian Highfill
发明人： Ali Ebrahimi Afrouzi , Lukas Fath , Chen Zhang , Brian Highfill
IPC分类号： G05D1/02 , A62C27/00
摘要： Provided is provide a robotic device, including: a chassis; a set of wheels; a control system; a battery; one or more sensors; a processor; a tangible, non-transitory, machine readable medium storing instructions that when executed by the processor effectuates operations including: capturing, with the one or more sensors, data of an environment of the robotic device and data indicative of movement of the robotic device; generating or updating, with the processor, a map of the environment based on at least a portion of the captured data; inferring, with the one or more processors of the robotic device, a current location of the robotic device, and generating or updating, with the processor, a movement path of the robotic device based on at least the map of the environment, at least a portion of the captured data, and the inferred current location of the robotic device.

55. 发明授权

US11320828B1 Robotic cleaner 有权
公开(公告)号：US11320828B1
公开(公告)日：2022-05-03
申请号：US16297508
申请日：2019-03-08
申请人： Ali Ebrahimi Afrouzi , Lukas Fath , Chen Zhang
发明人： Ali Ebrahimi Afrouzi , Lukas Fath , Chen Zhang
IPC分类号： G05D1/02 , B25J9/16 , B25J11/00 , G05D1/00
摘要： Provided is a robotic device, including: a chassis; a set of wheels; one or more motors to drive the set of wheels; a controller in communication with the one or more motors; one or more surface cleaning tools; at least one sensor; a camera; one or more processors; a medium storing instructions that when executed by the one or more processors effectuate operations including: capturing, with the camera of the robotic device, spatial data of surroundings of the robotic device; generating, with the one or more processors of the robotic device, a movement path based on the spatial data of the surroundings; inferring, with the one or more processors of the robotic device, a location of the robotic device; and updating, with the one or more processors of the robotic device, the movement path to exclude locations of the movement path that the robotic device has previously been located.

56. 发明授权

US11199853B1 Versatile mobile platform 有权
公开(公告)号：US11199853B1
公开(公告)日：2021-12-14
申请号：US16509099
申请日：2019-07-11
申请人： Ali Ebrahimi Afrouzi , Lukas Fath , Chen Zhang , Brian Highfill , Amin Ebrahimi Afrouzi , Shahin Fathi Djalali , Masih Ebrahimi Afrouzi , Azadeh Afshar Bakooshli
发明人： Ali Ebrahimi Afrouzi , Lukas Fath , Chen Zhang , Brian Highfill , Amin Ebrahimi Afrouzi , Shahin Fathi Djalali , Masih Ebrahimi Afrouzi , Azadeh Afshar Bakooshli
IPC分类号： G05D1/02 , B25J11/00 , B25J13/00 , B25J5/00
摘要： Provided is a tangible, non-transitory, machine readable medium storing instructions that when executed by a processor effectuates operations including: capturing, with at least one exteroceptive sensor, readings of an environment and capturing, with at least one proprioceptive sensor, readings indicative of displacement of a wheeled device; estimating, with the processor using an ensemble of simulated positions of possible new locations of the wheeled device, the readings of the environment, and the readings indicative of displacement, a corrected position of the wheeled device to replace a last known position of the wheeled device; determining, by the processor using the readings of the exteroceptive sensor, a most feasible position of the wheeled device as the corrected position; and, transmitting, by the processor, status information of tasks performed by the wheeled device to an external processor, wherein the status information initiates a second wheeled device to perform a second task.

57. 发明授权

US10882186B1 Method for efficient operation of mobile robotic devices 有权
公开(公告)号：US10882186B1
公开(公告)日：2021-01-05
申请号：US15976853
申请日：2018-05-10
申请人： Ali Ebrahimi Afrouzi , Chen Zhang
发明人： Ali Ebrahimi Afrouzi , Chen Zhang
IPC分类号： B25J9/16 , B25J11/00
摘要： A method for efficient navigational and work duty planning for mobile robotic devices. A mobile robotic device will autonomously create a plan for navigation and work duty functions based on data compiled regarding various considerations in the work environment. These factors include what type of work surface is being operated on, whether dynamic obstacles are present in the work environment or not and the like factors.

58. 发明授权

US09128132B2 Resampling a signal to perform power quality and synchrophasor measurement 有权
标题翻译：重新采样信号以执行电源质量和同步相机测量
公开(公告)号：US09128132B2
公开(公告)日：2015-09-08
申请号：US13326676
申请日：2011-12-15
申请人： Qiao Guo , Chen Zhang , Yijun Shi
发明人： Qiao Guo , Chen Zhang , Yijun Shi
IPC分类号： G01R21/00 , G01R21/133 , G01R19/25
CPC分类号： G01R21/133 , G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： Performing power quality and synchrophasor analysis on a resampled signal. A first signal may be initially received which corresponds to a power system. The first signal may have a plurality of cycles and may have a frequency that varies over time. One or more parameters may be determined from the first signal. Based on the one or more parameters, the first signal may be resampled to produce an even angle signal. Various power quality measurements may be performed on the even angle signal. Similarly, further processing may be performed to perform synchrophasor measurements, e.g., to determine phasor, frequency, and/or rate of frequency change for the first signal. In some embodiments, the resampling processing elements (e.g., circuitry, programmable hardware elements, processors and memories, etc.) may be shared between the two analyses.
摘要翻译：对重采样信号执行电源质量和同步信号分析。可以首先接收对应于电力系统的第一信号。第一信号可以具有多个周期，并且可以具有随时间变化的频率。可以从第一信号确定一个或多个参数。基于一个或多个参数，第一信号可被重采样以产生均匀角度信号。可以对均匀角度信号执行各种功率质量测量。类似地，可以执行进一步的处理以执行同步器测量，例如，以确定第一信号的频率变化的相量，频率和/或速率。在一些实施例中，可以在两个分析之间共享重采样处理元件（例如，电路，可编程硬件元件，处理器和存储器等）。

59. 发明授权

US08180784B2 Method and system for improving performance of counting hits in a search 有权
标题翻译：用于提高搜索中点击次数的性能的方法和系统
公开(公告)号：US08180784B2
公开(公告)日：2012-05-15
申请号：US10402727
申请日：2003-03-28
申请人： David Chen Zhang , Jack Vinh Chung
发明人： David Chen Zhang , Jack Vinh Chung
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F17/30678 , G06F17/30672
摘要： One embodiment of the present invention includes a method for automatically enabling a search system or application to quickly and accurately count hits corresponding to a search expression. For example, a search expression is received or retrieved that may include redundant and/or overlapping search expression components. Each narrow search expression component is removed from the search expression if joined by an “OR” operator to a broader or equivalent search expression component. Additionally, each broad search expression component is removed from the search expression if joined by an “AND” operator to a narrower or equivalent search expression component. By modifying the received search expression in this fashion, a performance gain is typically achieved for calculating the hit count while maintaining its accuracy.
摘要翻译：本发明的一个实施例包括一种用于自动使搜索系统或应用程序快速准确地计数与搜索表达相对应的命中的方法。例如，接收或检索可包括冗余和/或重叠的搜索表达组件的搜索表达式。如果通过“OR”运算符连接到更广泛或等效的搜索表达式组件，则每个窄搜索表达组件都将从搜索表达式中删除。此外，如果通过“AND”运算符连接到较窄或等效的搜索表达组件，则每个广泛搜索表达式组件都将从搜索表达式中删除。通过以这种方式修改接收到的搜索表达式，通常在保持其精度的同时计算命中计数来实现性能增益。

60. 发明申请

US20100295816A1 Device and method for detecting touch screen 审中-公开
标题翻译：触摸屏检测装置及方法
公开(公告)号：US20100295816A1
公开(公告)日：2010-11-25
申请号：US12475593
申请日：2009-07-13
申请人： Chen Zhang
发明人： Chen Zhang
IPC分类号： G06F3/045
CPC分类号： G06F3/045
摘要： Techniques for detecting multiple touch points for touch screen are disclosed. A touch screen includes a first conductive layer and a second conductive layer, each conductive layer having a positive terminal and a negative terminal, an operation of detecting multiple points on a touch screen includes: coupling the positive terminal of the second conductive layer to a positive reference voltage, coupling the negative terminal of the second conductive layer to a negative reference voltage, sampling the positive terminal of the first conductive layer to obtain a series of first voltage samples V1(i), sampling the negative terminal of the first conductive layer to obtain a series of second voltage samples V2(i), wherein i is a sampling number; concluding that a motion tendency of two touch points on the touch screen is contraction when absolute values of the differences V1(i)−V2(i) between the first voltage samples and the second voltage samples tend to increase; and concluding that the motion tendency of two touch points on the touch screen is expansion when the absolute values of the differences V1(i)−V2(i) tend to decrease.
摘要翻译：公开了用于检测触摸屏的多个触摸点的技术。触摸屏包括第一导电层和第二导电层，每个导电层具有正极端子和负极端子，检测触摸屏上的多个点的操作包括：将第二导电层的正极端子连接到正极端子参考电压，将第二导电层的负极端子耦合到负的参考电压，对第一导电层的正极端子进行采样，以获得一系列第一电压样本V1（i），将第一导电层的负极端子取样为获得一系列第二电压样本V2（i），其中i是采样数; 认为当第一电压样本和第二电压样本之间的差值V1（i）-V2（i）的绝对值趋于增加时，触摸屏上的两个触摸点的运动趋势是收缩的; 并且得出当差值V1（i）-V2（i）的绝对值趋于降低时，触摸屏上的两个触摸点的运动趋势是扩张。

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