Anti-Interference Optimal Design of Grain Combine Harvester Multiple Target Working Speed Control Model

2013 ◽  
Vol 753-755 ◽  
pp. 1382-1385
Author(s):  
Xin Wang ◽  
Han Fu ◽  
Du Chen ◽  
Shu Mao Wang
Keyword(s):  
Effective Means ◽  
Optimization Theory ◽  
Multiple Control ◽  
Power Cost ◽  
High Productivity ◽  
Key Factor ◽  
Objective Control ◽  
Combine Harvester ◽  
And Control ◽  
Measurement And Control

Harvesting speed is a key factor that influences working quality, utilization and harvest efficiency of the working process of grain combine harvester. In order to solve multi-objective control and poor anti-interference ability of measurement system in combine harvester, this paper uses optimization theory and error analysis theory to integrate analyze multi-source disturbance of data which is acquired in measurement and control system. The optimum working state control algorithm which proposes by this paper has better robust and anti-interference features, and what is more, it can be targeted by low yield loss, high productivity and low power cost. It provides theoretical basis and data support for the domestic agricultural harvesting machine, which also is an effective means to heighten the automatic level of the agricultural information technology. Keywords: Grain Combine harvester; Multiple control strategy; Anti-interference ability

Development of Multivariate Measurement and Control System of Threshing Cylinder in Combine Harvester

2012 ◽  
Vol 229-231 ◽  
pp. 1288-1291 ◽  
Author(s):  
Xin Wang ◽  
Shu Mao Wang ◽  
B. Miedzinski
Keyword(s):  
Control System ◽  
Field Trials ◽  
Optimal Operation ◽  
Control Algorithms ◽  
Measurement And Control System ◽  
Combine Harvester ◽  
Working Performance ◽  
And Control ◽  
Measurement And Control ◽  
Regression Theory

Threshing cylinder is a core component of combine harvester which determines the working performance of the entire machine and also consumes a majority of the whole combine harvester’s power. In this paper, a multivariate measurement and control system was established. The control algorithms were developed by linear regression theory and abundant experimental data. The Field trials were conducted in several major grain producing areas in China for data acquisition. Practical application indicated that the developed multivariate measurement and control system could meet the demand of optimal operation of threshing cylinder. The working performance and efficiency of combine harvester was improved.

Combine Harvester Noise and Emissions Detecting System Based on Virtual Instrument

2014 ◽  
Vol 644-650 ◽  
pp. 1019-1022
Author(s):  
Ya Wei Zhang ◽  
Dong Wang ◽  
Shu Mao Wang
Keyword(s):  
Virtual Instrument ◽  
Detection System ◽  
National Standards ◽  
Practical Applications ◽  
Software Interface ◽  
Combine Harvester ◽  
Level Meter ◽  
The Stability ◽  
And Control ◽  
Measurement And Control

To evaluate the noise and emissions of combine harvest meet the national standards or not, a noise and emissions testing and analyzing system was developed based on virtual instrument. A high precision digital noise level meter and an opacimeter were connected to a computer via a RS232 cable, and used to detect the noise and emissions of a working combine harvester respectively. A measurement and control software was developed to collect, process and analysis the measured data automatically in real-time, and the experimental data also could be stored and printed when necessary. The analyzed results were shown on the software interface by curves and LED. To verify the stability and reliability of the system, a serial of tests were made with a Xinjiang-2A combine harvester, the results showed that this detection system meet the need of different kinds of practical applications.

A Signal Acquisition and Failure Alarm System of Combine Harvester Based on Touch Screen Technology

2013 ◽  
Vol 347-350 ◽  
pp. 28-31
Author(s):  
Yuan Yuan Ji ◽  
Jin Chen ◽  
Guang Jing Yang
Keyword(s):  
Serial Communication ◽  
Control Unit ◽  
Touch Screen ◽  
Signal Acquisition ◽  
Alarm System ◽  
Combine Harvester ◽  
Stability And Accuracy ◽  
And Control ◽  
Measurement And Control ◽  
To Receive

Most measurement and control systems of combines use digital tubes or LCD as their monitor, which has some problems like low brightness, poor functional expansion and over-occupy port resources. In this paper, a signal acquisition and failure alarm system of combine harvester is designed, based on touch screen technology. The system uses MCU as the main control unit to receive forward speed signal and rotational speed signals of threshing cylinder, transport grain auger and conveyor pan. It handles the signal data, makes judgments, and sends the signal data to the touch screen through serial communication. Some functions like parameters display, parameters setting and faults alarm are set in the touch screen. The system is applied to Taihu Star TH988 combine harvester and had rice harvest tests. The results show that it has good human-computer interaction and improves stability and accuracy, hardware structure and electrical design simplified.

2. Measurement and Control of Airborne Microorganisms Using Electrostatic Methods

2001 ◽  
Author(s):  
G. Mainelis ◽  
R. Gorny ◽  
K. Willeke ◽  
S. Grinshpun ◽  
T. Reponen ◽  
...  
Keyword(s):  
Airborne Microorganisms ◽  
And Control ◽  
Measurement And Control
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