scholarly journals Researches on the Technology of Measuring Grain Moisture based on 555 Integrated Circuit

2021 ◽  
Vol 2065 (1) ◽  
pp. 012021
Author(s):  
Wan Zhiqiang ◽  
Zhang Qingqing ◽  
Xu Liang
Keyword(s):  
Control System ◽  
Integrated Circuit ◽  
Food Production ◽  
Substantial Part ◽  
Drying Time ◽  
Problem Context ◽  
Material Basis ◽  
Grain Moisture ◽  
Moisture Detection ◽  
Hardware Circuit

Abstract Grain is the material basis of human existence and development. Food quality has an important effect on people’s physical health for our country. Moisture content of grain has been an important factor in affecting food quaility. Every year, a substantial part of the food production is lost because of too much water contained in the food without drying. According to the annual statistics of the country’s harvest, loss of food due to drying time caused by water take up 500 - 10000000 tons, according to approximate 1.5% - 3% of the total grain output.With the development of science and technology, grain moisture detection, especially the real-time and accurate detection, has attracted more and more purchase, production, processing, storage, transportation, and attention from various aspects. Under this problem context, hardware-circuit-control system of grain moisture detection based on ATmega128 has been investigated and designed.

Step Motor Control Based on FPGA

2013 ◽  
Vol 397-400 ◽  
pp. 1226-1229
Author(s):  
Juan Zhu ◽  
Yue Chen
Keyword(s):  
Motor Control ◽  
Control System ◽  
Integrated Circuit ◽  
High Speed ◽  
Step Motor ◽  
Single Chip ◽  
Field Programmable ◽  
Hardware Description ◽  
Motor Control System ◽  
Hardware Circuit

Design a step motor control system based on Field Programmable Gate Array (FPGA). Give the hardware circuit of this system and the program based on very high speed integrated circuit hardware description language (VHDL). Compared to step motor control system based on single chip microcomputer, the processing speed of this system is faster.

Study on Grain Moisture Detection System Based on the Theory of Dielectric Properties

2013 ◽  
Vol 333-335 ◽  
pp. 1558-1563
Author(s):  
Ling Bin Tan ◽  
Hai Yan Ji
Keyword(s):  
Dielectric Properties ◽  
Detection System ◽  
Capacitive Sensor ◽  
Extreme Environment ◽  
Single Chip ◽  
Display Module ◽  
Temperature Detection ◽  
Grain Moisture ◽  
Moisture Detection ◽  
The Relationship

After studying the relationship between the moisture content of crops and their relative permittivity, the principle of capacitive sensor and the research results of measuring micro-capacitance, this paper summarizes the theoretical basis of dielectric properties of grain, the dielectric properties of wheat, corn and rice, the relationship between the dielectric properties of these crops and their water content. With these theory analyses, the paper gives a full look on the grain moisture detection system by the means of dielectric properties, which consists of six parts, a cylindrical capacitor, signal conditioning circuits, single-chip control module with an A/D converter, temperature detection module, keyboard module and display module. The system is simple, and can adapt to extreme environment and accomplish the rapid detection in manufacturing. A description is given of the principle, its hardware circuit and software programming flow chart.

A modeling method of algorithm-hardware based on SysML

2021 ◽  
Author(s):  
Liu Yue ◽  
Zhao Chun ◽  
Zhang Lin
Keyword(s):  
Graphical Models ◽  
Integrated Circuit ◽  
High Speed ◽  
System Modeling ◽  
Modeling Method ◽  
Description Language ◽  
Hardware Description ◽  
Circuit And System ◽  
Graphical System ◽  
Hardware Circuit

In the process of complex product design, modeling in different fields and different disciplines is often involved. Designers often face many different development kits, platforms, and theories, among which significant differences exist. Especially in the process of algorithm-hardware implementation, it is necessary to have mastery of the knowledge including algorithm, hardware, circuit, and system engineering. In this paper, a modeling method of algorithm-hardware based on SysML is proposed to reduce the difficulty of algorithm-hardware modeling. By using the method, the designers who do not know the knowledge of hardware can also easily build the algorithm-hardware model. In this method, a method of graphical system modeling based on SysML is used, where the elements of the algorithm-hardware model are described by SysML graphical models. Then, the SysML graphical models are converted to Very-High-Speed Integrated Circuit Hardware Description Language. At last, a detecting algorithm of random number is complemented by the modeling method in this paper and the simulation results are presented at the conclusion.

TECHNICAL REQUIREMENTS FOR THE INFORMATION AND MEASUREMENT SUBSYSTEM OF THE AUTOMATED PROCESS CONTROL SYSTEM OF SYNTHESIZED GRAIN MOISTURE MONITORING DEVICES

2021 ◽  
Author(s):  
P Kalan ◽  
N Avezov ◽  
S Matchanov
Keyword(s):  
Control System ◽  
Process Control ◽  
Process Control System ◽  
Technical Requirements ◽  
Grain Moisture ◽  
Automated Process Control System ◽  
Grain Products ◽  
Automated Process ◽  
Processed Products ◽  
Monitoring Devices

The problems of drying grain products are Analyzed, and the issues of instrument support for monitoring the humidity of the cheese and its processed products as part of an automated process control system are considered.

Effectiveness of Modified 1-Hour Air-Oven Moisture Methods for Determining Popcorn Moisture

2018 ◽  
Vol 34 (3) ◽  
pp. 617-621
Author(s):  
Daniel Brabec ◽  
Mayra Perez-Fajardo ◽  
Hulya Dogan ◽  
Kathleen Yeater ◽  
Elizabeth Maghirang
Keyword(s):  
Reference Method ◽  
Heating Time ◽  
Whole Grain ◽  
Oven Method ◽  
Drying Time ◽  
Ground Sample ◽  
Moisture Measurement ◽  
Mesh Screen ◽  
Grain Moisture ◽  
Short Heating Time

Abstract. Two of the most commonly used approved grain moisture air-oven reference methods for corn are the air oven method ASAE S352.2, which requires long heating time (72 h) at 103 ± 1°C for unground samples, and the AACC 44-15.02 air-oven method, which dries a ground sample for 1 h at 130 ± 1°C, but there is specific moisture measurement method for popcorn. The AACC 44-15.02 recommends a two-stage drying method for grain over 13%. But this involves more handling and drying time. The objective of this study was to develop an air-oven procedure for popcorn that requires short heating time (1h or less) based on existing reference method for ground corn (AACC 44-15.02). In the process of procedure development, two laboratory mills (Wiley Mini-Mill and Perten 3303 Mill) were optimized for mesh screen size and mill gap settings. The approved AACC method recommends using a 20-mesh screen fitted to the Wiley Mill, which failed, with wires breaking during the grinding process, possibly due to the hard nature of popcorn and/or clogging. It was replaced with the 10-mesh screen which produced larger particle size distribution with ~73% greater than 840 µm. The Perten Mill 3303 was set to gap No. 3 which produced ~68% particles that were greater than 840 µm. Additionally, this study evaluated the effectiveness of single-stage moisture measurement with the 14.5% and 16% moisture popcorn samples. Using the proposed procedure, four varieties of popcorn were tested at three different moisture contents (13%, 14.5%, and 16%). The method using the Wiley grinder and 60 min. heating time yielded oven moisture values which were statistically (p<0.05) similar to the approved ASAE S352.2 and AACC 44-15.02 (72-h, whole grain method). The moisture content of ground samples obtained from the Perten 3303 Mill had elevated moisture measurements and bias across the moisture levels when dried for 60 min. A reduction in heating time to 50 min. resulted in Perten mill samples yielding statistically (p<0.05) similar moisture measurements with the reference 72-h, whole grain method. Keywords: Air-oven, Drying, Popcorn.

The Multi-Scenario Semiconductor Lighting Control of Driver Refactoring

2015 ◽  
Vol 743 ◽  
pp. 209-213
Author(s):  
Jun Shi Li ◽  
Feng Xiong ◽  
Guo Qing Qu
Keyword(s):  
Control System ◽  
Remote Control ◽  
Control Method ◽  
Led Driver ◽  
Lighting Control ◽  
Zone Control ◽  
Driver Circuit ◽  
Working Principle ◽  
Hardware Circuit ◽  
The Internet Of Things

In view of the inefficiency and the poor flexibility of the recent intelligent lighting control system, this paper proposes a new control method starting from sensor, controller and LED driver circuit, meanwhile connecting with the Internet of things technologies. The most striking feature of this control is that it is refactored in the aspect of the whole system, which can reach the purposes of scene control, timing control, multi-zone control and remote control, etc. This paper also elaborates the hardware circuit design and the working principle of the control system and the method to realize the remote control. The system can operate simply, control efficiently, transmit reliably, manage easily.

scholarly journals An Integrated Circuit Control System for the Pewee Reactor

1969 ◽  
Vol 16 (1) ◽  
pp. 227-231 ◽  
Author(s):  
Bobby G. Strait ◽  
Robert M. Lang
Keyword(s):  
Control System ◽  
Integrated Circuit
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