Monitoring system and monitoring method for seeder

Patent metadata

Field	Value
Publication number	US-11464156-B2
Application number	US-201816474514-A
Country	US
Kind code	B2
Filing date	Jul 13, 2018
Priority date	Oct 26, 2017
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

A monitoring system and a monitoring method for a planter includes a computer having an unit speed fusion module, a seeding flow rate monitoring module, and a decision module for theoretical rotation speed of a drive motor, a rotation speed deviation inference module, a controlling parameter tuning module, an adjusting module for rotation speed of a seeding shaft, a controlling module for rotation speed of seeding shaft and a positioning signal receiver fixed on a top of a cab for receiving a geographic position signal. The system monitors operating state parameters of the planter and accurately controls seed amount.

First claim

The invention claimed is:

1. A monitoring system for a planter, said system comprising a computer, a drive motor, a unit speed fusion module, a seeding flow rate monitoring module, a decision module for theoretical rotation speed of the drive motor, a rotation speed deviation inference module, a control parameter tuning module, an adjusting module for adjusting rotation speed of seeding shaft, and a control module for controlling rotation speed of seeding shaft;
a positioning signal receiver fixed on a top of a cab, and configured to receive a geographic position signal, the positioning signal receiver being connected with the decision module for theoretical rotation speed of the drive motor, the decision module for theoretical rotation speed of drive motor being configured to convert the geographic position signal into a theoretical seeding amount Q in the area by a look-up table method according to Q=f(N u ,E u ), where N u is a north latitude coordinate of the planter and E u is an east longitude coordinate of the planter;
a speed sensor mounted on a drive wheel of the planter to measure the rotation speed of the drive wheel of the planter; the speed sensor being connected with the unit speed fusion module, and the drive wheel rotation speed n u of the planter at the uth sampling being used as an input of the unit speed fusion module;
an acceleration sensor installed on a cross beam of the planter frame, configured to measure acceleration of the planter; the acceleration sensor being connected with a unit speed fusion module, and the acceleration rotation speed a u of the planter at the uth sampling being used as an input of the unit speed fusion module;
the input drive wheel rotation speed n u and acceleration rotation speed a u of the planter at the uth sampling being converted into planter speed v u at the uth sampling by the unit speed fusion module through a speed fusion algorithm, wherein:

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where n u is the drive wheel rotation speed of planter at the uth sampling, round/min;
n u-1 is the drive wheel rotation speed of planter at the (u−1)th sampling, round/min; when u equals to 1, n 0 equals to 0;
D is the drive wheel diameter of the planter, m;
a u is the acceleration rotation speed of the planter at the uth sampling, m/s 2 ;
V u-1 is the speed of planter at (u−1)th sampling, m/s; when u equals to 1, v 0 equals to 0;
u is the current sampling number of times, 1≤u≤m, m is the total sampling number of times, and sampling period T is the time interval from (u−1)th sampling to uth sampling, and T is a constant;
wherein flow rate sensors are installed on each seeding opening of planter for measuring the flow rate of each seeding opening; said flow rate sensors being connected with the seeding flow rate monitoring module and the flow rate on each seeding opening of planter being used as an input of the seeding flow rate monitoring module; wherein the seeding flow rate monitoring module outputs the total seeding amount and is connected with a decision module for theoretical rotation speed of drive motor, so that a total seeding amount of the planter is used as the input of the decision module for theo

Assignees

• Univ Jiangsu

Inventors

• Hu Jianping
• Liu Wei
• Luo Jiaming
• Han Lvhua
• Yang Deyong
• Dong Lili

Classifications

• G01S19/14 Primary

  specially adapted for specific applications · CPC title

• A01C7/105 Primary

  Seed sensors · CPC title

• G06N3/043

  based on fuzzy logic, fuzzy membership or fuzzy inference, e.g. adaptive neuro-fuzzy inference systems [ANFIS] · CPC title

• G06F18/25

  Fusion techniques · CPC title

• G06N3/0499

  Feedforward networks · CPC title