公开(公告)号：US20220399834A1

公开(公告)日：2022-12-15

申请号：US17288561

申请日：2020-12-02

申请人： NANTONG UNIVERSITY

发明人： Liang HUA ,  Ling JIANG ,  Juping GU ,  Ping LU ,  Yuxuan GE ,  Yisheng HUANG ,  Chunkai YAN ,  Wenbo SU

IPC分类号： H02N2/14 ,  H02N2/10 ,  H02N2/16

摘要： A composite motor having high-precision positioning, comprising: a housing (1), a rough positioning assembly, a hollow output shaft (2), a fine positioning assembly, a power switching apparatus and a controller (6). A stepper motor (3) in the rough positioning assembly is responsible for rough positioning of the composite motor, an annular travelling wave ultrasonic motor in the fine positioning assembly is responsible for tail end fine positioning of the composite motor, and the controller (6) implements power output switching between the annular travelling wave ultrasonic motor and the stepper motor (3). The composite motor effectively solves the problem that annular travelling wave ultrasonic motors which operate continuously for a long time have a short service life, and ensures high-precision positioning while also extending motor service life.

公开(公告)号：US20220386540A1

公开(公告)日：2022-12-08

申请号：US17052496

申请日：2020-02-24

申请人： NANTONG UNIVERSITY

发明人： Liang HUA ,  Zeguang ZHANG ,  Jiahan YOU ,  Yisheng HUANG ,  Ping LU

IPC分类号： A01G13/02 ,  G01N21/3554 ,  G01N21/359 ,  G01N33/24 ,  B25J11/00 ,  B07C5/342 ,  B07C5/02 ,  B07C5/36

摘要： An automatic detection and recovery device for residual agricultural mulch film, and a method of using said device, comprising a quadcopter, a wheeled robot (9), and a host computer (8); the quadcopter is provided with a controller (1), a near infrared water content analyzer, and a WiFi module that are used to measure water content in soil and communicate with the host computer; the wheeled robot (9) comprises a water sprinkling device (2), a soil grabbing device (3), a sifting device (4), a delivery device (5), a recognition device (6), and a sorting device (7).