公开(公告)号：US11680793B2

公开(公告)日：2023-06-20

申请号：US17627693

申请日：2021-08-05

Applicant: Jiangsu University

Inventor： Mingxiong Ou ,  Ming Wang ,  Weidong Jia ,  Huitao Zhou ,  Shiqun Dai ,  Shuai Yang

IPC: G01B17/02

CPC classification number: G01B17/02

Abstract: The present invention relates to a method for detecting a thickness of a tree canopy based on an ultrasonic echo signal, and belongs to the technical field of agricultural machinery information sensing and detection. The present invention analyzes and discriminates a first effective peak and a last effective peak of the ultrasonic echo signal, obtains a first effective peak time and a last effective peak time, and calculates the thickness of the tree canopy according to a provided calculation formula, thus realizing the direct detection of the thickness of the tree canopy. This method has characteristics such as a high accuracy and a wide application range, and is applicable to the field of detection of the thickness of a tree canopy in industries such as agricultural machinery and forestry machinery.

公开(公告)号：US10996157B2

公开(公告)日：2021-05-04

申请号：US16957196

申请日：2018-08-31

Applicant: JIANGSU UNIVERSITY

Inventor： Mingxiong Ou ,  Weidong Jia ,  Wei Yu ,  Pei Wang ,  Guangyang Mao

IPC: G01N15/04

Abstract: A system and method for online detection of a droplet deposition amount of a spraying operation of a plant protection machine, wherein the system is composed of parts such as a data processing module, a data collector, a temperature sensor, a spatial interdigital capacitive sensor, a communication module, a positioning module, a power supply module, and a control terminal, and wherein the spatial interdigital capacitive sensor is capable of outputting voltage data directly proportional to the droplet deposition amount; and provides a specific method and steps for detecting parameters of the droplet deposition amount, comprising: by the data processing module of the system for the online detection of the droplet deposition amount, acquiring the voltage data output from the spatial interdigital capacitive sensor via the data collector and processing the voltage data, and transmitting the processed voltage data to the control terminal via the communication module.

公开(公告)号：US11278917B2

公开(公告)日：2022-03-22

申请号：US17289715

申请日：2020-05-27

Applicant: Jiangsu University

Inventor： Mingxiong Ou ,  Weidong Jia ,  Xuejun Yang ,  Xiang Dong

IPC: B05B7/08 ,  B05B5/053 ,  B05B1/06

Abstract: An inductive electrostatic atomization nozzle includes a nozzle body. The nozzle body has an internal gas flow channel and a liquid flow channel surrounding the internal gas flow channel. An electrode ring is arranged around the liquid flow channel at an inlet of the liquid flow channel. In the inductive electrostatic atomization nozzle, the electrode ring is arranged at the inlet of the liquid flow channel, which ensures that the electrode ring is located far away from the outlet of the inductive electrostatic atomization nozzle.

公开(公告)号：US11150288B2

公开(公告)日：2021-10-19

申请号：US17047073

申请日：2019-07-30

Applicant: Jiangsu University

Inventor： Mingxiong Ou ,  Minmin Wu ,  Weidong Jia ,  Chen Gong ,  Huitao Zhou

IPC: G01R29/24 ,  B05B5/025

Abstract: The present disclosure discloses a system for measuring a charge-to-mass ratio of an electrostatic atomization nozzle and a measurement method using the same. The system includes an electrostatic atomization nozzle, an upper cylinder, a lower cylinder, an ammeter, a liquid level tube, an ultrasonic level meter, a water storage tank, and a liquid pump. The electrostatic atomization nozzle, the upper cylinder, and the lower cylinder are sequentially connected from top to bottom. The ammeter is connected to the lower-cylinder flange. The liquid level tube is communicated with the lower cylinder. The ultrasonic level meter is mounted on an upper end of the liquid level tube. The water storage tank is located below a lower-cylinder water outlet pipe. The liquid pump can deliver a liquid in the water storage tank to the electrostatic atomization nozzle. Measurement data of the ammeter is acquired and processed by a computer in real time.