Path planning method and system for self-driving of autonomous system

    公开(公告)号:US11067992B2

    公开(公告)日:2021-07-20

    申请号:US16822820

    申请日:2020-03-18

    Abstract: The present invention provides a path planning method and system for self-driving of autonomous system, and relates to the technical field of autonomous systems. The method comprises following steps of: acquiring a path optimization function of an agent; converting, based on fixed-point theorems, the path optimization function of the agent into an equivalent fixed-point equation; acquiring a complete simplex sequence based on the fixed-point equation; and, determining, based on the complete simplex sequence, an initial population size and an initial position of particles for particle swarm optimization to obtain the best path planning of the agent. In the present invention, the extremal optimization of the path optimization function of the agent is converted into solving of the fixed-point equations, and initial parameters for particle swarm optimization are determined by the complete simplex sequence.

    Smart medical rehabilitation device

    公开(公告)号:US11065170B2

    公开(公告)日:2021-07-20

    申请号:US15815554

    申请日:2017-11-16

    Abstract: A smart medical rehabilitation device comprises a driving unit, a linkage unit, a sensing unit and a rehabilitation evaluating unit that are mounted on a frame, wherein the linkage unit comprises a link mechanism and a slide mechanism linked thereto so that the slide mechanism can be moved together with the link mechanism, wherein the slide mechanism is driven by the driving unit to slide along the groove plate, the link mechanism is linked to move with the slide mechanism thus the link mechanism moves to the corresponding position so that the slide mechanism can assist a training object in performing lower limb rehabilitation training, and the rehabilitation evaluating unit evaluates the physical status and rehabilitation status of the training object according to the physiological information and exercise information of the same collected by the sensing unit, and adjusts the exercise frequency and the exercise duration of the training object according to the physical status in real time.

    Multimode mobile electronic medical record system and working method thereof

    公开(公告)号:US11062796B2

    公开(公告)日:2021-07-13

    申请号:US15803166

    申请日:2017-11-03

    Abstract: The present invention discloses a multimode mobile electronic medical record system and a working method thereof. The multimode mobile electronic medical record system comprises a plurality of mobile terminals, service server, push server, authentication server and cloud server. The mobile terminal comprises a medical record information collection module, a medical record generation module, a medical record synchronization module, a medical record parsing module and a medical record showing module. The service server comprises a medical record storage module and a medical record exchange module. The push server comprises a medical record push module. The authentication server comprises a medical record safety control module. The multimode mobile electronic medical record system can meet collection, integration and transfer of multimode electronic medical record information in a mobile medical environment, and can efficiently improve efficiency and convenience of mobile medical services.

    INTELLIGENT DECISION-MAKING METHOD AND DEVICE FOR UAV FORMATION INFORMATION INTERACTION TOPOLOGIES IN COMMUNICATION INTERFERENCE

    公开(公告)号:US20210119900A1

    公开(公告)日:2021-04-22

    申请号:US16837000

    申请日:2020-04-01

    Abstract: An intelligent decision-making device and method for UAV formation information interaction topologies in communication interference, comprising: acquiring a three-dimensional UAV formation without communication interference, an initial communication network D1 and an initial information interaction topology T1; acquiring communication links A0 interrupted by UAV formation with communication interference; acquiring interrupted communication links A1 in T1 based on A0 and T1; determining whether A0 affects T1; if not, T1 being the final information interaction topology; if yes, acquiring substitute reverse arcs of A1 and substituting A1 with them to obtain an information interaction topology T2; determining whether T2 is a three-dimensional persistent graph; if yes, T2 being the final information interaction topology; if not, acquiring an undirected graph R1 corresponding to T2; acquiring spare edges based on R1; and adding an arc corresponding to a spare edge in T2 based on the spare edges to obtain a final information interaction topology.

    Analog circuit fault mode classification method

    公开(公告)号:US10706332B2

    公开(公告)日:2020-07-07

    申请号:US15555077

    申请日:2015-11-24

    Abstract: An analog circuit fault mode classification method comprises the following implementation steps: (1) collecting M groups of voltage signal sample vectors Vij to each of fault modes Fi of the analog circuit by using a data collection board; (2) sequentially extracting fault characteristic vectors VijF of the voltage signal sample vectors Vij by using subspace projection; (3) standardizing the extracted fault characteristic vectors VijF to obtain standardized fault characteristic vectors; (4) constructing a fault mode classifier based on a support vector machine, inputting the standardized fault characteristic vectors, performing learning and training on the classifier, and determining structure parameters of the classifier; and (5) completing determination of fault modes according to fault mode determination rules. The fault mode classifier of the present invention is simple in learning and training and reliable in mode classification accuracy.

    METHOD AND SYSTEM FOR PATROLLING AN EXPRESSWAY BY UNMANNED AERIAL VEHICLES

    公开(公告)号:US20200209892A1

    公开(公告)日:2020-07-02

    申请号:US16688433

    申请日:2019-11-19

    Abstract: The embodiments of the present disclosure provide a method and system for patrolling an expressway by unmanned aerial vehicles (UAVs). The method is applied to the system including a control center, a plurality of UAVs and a plurality of advertising board charging base stations. The method firstly receives unmanned aerial vehicle (UAV) status information sent by the plurality of unmanned aerial vehicles and road section patrolling data through the control center, and receives advertising board charging base station information sent by the plurality of advertising board charging base stations, then classifies, stores and analyzes the received data and information, and finally generates and sends control commands for the UAVs and charging advertising boards. On one hand, the technical solutions of the present disclosure may comprehensively schedule an UAV formation, may also comprehensively control the advertising board charging base stations, and may further dispose and schedule task responses; and on the other hand, the technical solutions of the present disclosure may analyze situations of accidents, violations and the like and scheduling and usage of the UAVs and the advertising board charging base stations, thereby providing decision support data for the control center.

    ONLINE FAULT DETECTION DEVICE INSTALLED IN TRAIN CAR AND USED FOR HIGH-SPEED TRAIN RUNNING COMPONENT

    公开(公告)号:US20190154547A1

    公开(公告)日:2019-05-23

    申请号:US16313259

    申请日:2017-03-01

    Abstract: Provided in the present disclosure is an online fault detection device installed in a train car and used for a high-speed train running component comprising a GPS module (1), a noise sensor (2), a 3G module (5), a solid-state drive (6), a microprocessor (4), a status indicator (3), and a buzzer (7). Input ends of the microprocessor (4) are connected to an output end of the GPS module (1) and an output end of the noise sensor (2) respectively. Output ends of the microprocessor (4) are connected to an input end of the status indicator (3) and an input end of the buzzer (7) respectively. The microprocessor (4) is interactively connected to the 3G module (5) and the solid-state drive (6) respectively. The device above is reliable and easy to be installed and maintained; and the components and sensor thereof are not prone to be damaged. In addition, when a high-speed train is operating, the device can detect an early unstable fault signal subjected to multiple kinds of interference, and provide an alarm prompt rapidly.

    Program counter compression method and hardware circuit thereof

    公开(公告)号:US10277246B2

    公开(公告)日:2019-04-30

    申请号:US15579827

    申请日:2017-02-17

    Abstract: The present invention provides a program counter compression method and a hardware circuit thereof. The compression method of the present invention includes the following steps: step (1), acquiring execution condition of instructions sent by a processor and classifying and screening said instructions based on said execution condition of the instructions; step (2), executing differential operation on instruction count values of the objective classification and the stall periods based on the classifying and screening result and splicing the obtained differential values; step (3), dictionary encoding the valid differential slicing data segments recorded in step (2). The present invention effectively combines the architecture compression and non-architecture compression and proposes a three-stage compression scheme by organizing and applying classifying and screening, differential encoding and dictionary compression, which drastically increases the compression ratio of the program counter.

    Micro inchworm-type piezoelectric-driven rotating joint mechanism

    公开(公告)号:US09941818B2

    公开(公告)日:2018-04-10

    申请号:US14917012

    申请日:2015-04-08

    CPC classification number: H02N2/101 H02N2/103 H02N2/12 H02N2/14

    Abstract: A micro inchworm-type piezoelectric-driven rotating joint mechanism includes a U-shaped base, bearing pedestals, bearing brackets, bearing rings, piezoelectric ceramic plates, a rotating shaft, a rotating sleeve and end caps. Every bearing ring is divided into two half-rings which are coupled to the bearing pedestals via two bearing brackets. One end of every piezoelectric ceramic plate is fixed to one bearing pedestal, and the other end thereof is coupled to one bearing ring, so that every piezoelectric ceramic plate stretches and deforms under the driving of voltage for driving the bearing ring to achieve micro motions. Two bearing driving modules are respectively symmetrically mounted at two sides of the U-shaped base, and the rotating shaft is supported on the two bearing rings, so that the stepping motion of the rotating shaft is implemented by controlling the timing sequence of clamping, release and rotation of the two bearing driving modules.

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