scholarly journals Laser powder cladding automated control method based on advanced monitoring system of processing area by CCD-camera

Author(s):  
R V Chkalov ◽  
D A Kochuev ◽  
D V Rodionov ◽  
V G Prokoshev ◽  
A B Lyukhter
2001 ◽  
Vol 1 (2) ◽  
pp. 9-17
Author(s):  
Y.-H. Lee ◽  
H.-K. Lee ◽  
C.-H. Chang ◽  
W.-H. Kim

A bio-monitoring system for toxicants in water has been developed and verified for actual applications. This system is based on the motionality of five Acheilognathus lanceolata, a fish known to be very sensitive to toxic substances, moving around in an aquarium. Their movements are continuously monitored with a charge coupled device (CCD) camera and analyzed to find and quantify any abnormal behavior in their motional characteristics in comparison with the pre-acquired data. That is, the images of fish captured by a CCD camera are digitalized to identify the location of fish in a constant time interval and the locations of each fish were then analyzed mathematically with a personal computer using the equations proposed to determine the motional characteristics such as floatness, fledness and mobility(agility). These data are then converted by means of fuzzy estimation to an index value, defined as the contamination index (CI), by which the system provides the information about the overall toxic strength of the toxicant in the water flowing into the aquarium. If the fish are exposed to toxicant(s), the CI value will be proportional to the strength of its toxicity. The pilot test was performed in a water treatment plant for six months in order to verify the reproducibility of the system over the unstable conditions such as highly turbid water after rainfall as well as in normal conditions. The test results revealed that this monitoring system has good reproducibility and sensitivity, proving our approach, described in this paper, is reliable. As a result, this approach seems to enable us to make a quick and easy detection of toxic substances contained in water, therefore, this system can be applied to a source of water supply as a toxicant watching system.


2021 ◽  
Vol 1025 ◽  
pp. 104-109
Author(s):  
Nur Husnina Iffah Bakar ◽  
Noor Suhana Adzahar ◽  
Thong Chuan Lee ◽  
Rama Yusvana ◽  
Raha Ahmad Raus

Azolla Filliculoides has been utilized as biofertilizer to increase productivity and yield of paddy. Azolla was used as a good source of nutrient to the paddy plant. In this study, we investigated the growth and productivity of paddy plant supplemented with liquid Azolla biofertilizer. The preparation of Azolla was monitored under several parameters such as pH, dissolved oxygen, temperature, and salinity in an aquaponics system. Water quality analysis of the aquaponic system was monitored by using the Arduino system which the customized design that consists of a microcontroller to record the parameters directly to the computing device in a single optimum and efficient system. The nutrient composition of liquid Azolla biofertilizer was analyzed by using Inductively Coupled Plasma Mass Spectrometry (ICP/MS) and CHNS elemental analysers. hows that liquid Azolla contents 0.958% nitrogen, 15.5 ppm phosphorus and 159.8 ppm potassium. After four months, the yield of paddy on Azolla was 149.12 kg/he with the productivity of 63.157 kg/he/year. This application helped to an efficient monitoring system for measure high yield and productivity of biofertilizer by Arduino software monitoring. This study can act as an initial step for the web-based automated control and monitoring of the food production system.


2018 ◽  
Vol 284 ◽  
pp. 1380-1384 ◽  
Author(s):  
L.V. Radionova ◽  
T.A. Lisovskaya ◽  
Roman A. Lisovskiy

The article presents an automated control system for a screwdown mechanism of a laboratory rolling mill DUO-130 developed by NPI 'Practice Equipment and Technologies', SUSU (NRU). A specific feature of the system under consideration is its integrity into control system of the whole rolling mill. The article describes the operating principle of a screwdown mechanism regulated by a step motor and advantages of the chosen control method. It also gives the structure and operating principle of the control system of a servo drive that ensures regulating of a screwdown mechanism. It also presents the process of calculating the determination precision and positioning the upper roller of a roller plate.


2011 ◽  
Vol 467-469 ◽  
pp. 1793-1797
Author(s):  
Xin Sheng Che ◽  
Jiong Wei Jiang

In order to make concrete production more stable and efficient, a weighing and monitoring system is constituted which provides visualization of process and a powerful Human-Machine Interface by SIMATIC WinCC. After WinCC configuration software has connected with PLC effectively, data can be transmitted to and received from PLC through communication by HMI screen. Then, PLC can control the field devices independently rely on its high reliability and high anti-jamming capability. This kind of monitoring system is more efficient than other non-automatic control systems, and it improves accuracy and reduces the production time. Monitoring concrete production through WinCC can save manpower, reduce raw material waste, improve the level of automation and production efficiency. It provides a new control method for concrete production.


2000 ◽  
Vol 6 (S2) ◽  
pp. 288-289
Author(s):  
J. Pulokas ◽  
N. Kisseberth ◽  
C.S. Potter ◽  
B. Carragher

For several years we have been developing a software application, called Leginon, for the automated control and acquisition of images from a transmission electron microscope. The system has been developed around a Philips CM200 and a Gatan MSC CCD camera. One of the primary motivations in developing this software is to provide for a system that can acquire many hundreds of images under low dose conditions from a specimen embedded in vitreous ice. In order to set up and manage this system we have developed a number of simple interactive graphical tools that enable the user to design, oversee and manage protocols for controlling the microscope and collecting the images. Many of these simple tools have also proved generally useful as stand alone applications.


2019 ◽  
Vol 210 ◽  
pp. 05016
Author(s):  
Ryo Nakamura ◽  
Takayuki Tomida ◽  
Yasunori Saito ◽  
Katsuya Yamazaki

The Telescope Array (TA) is an international experiment studying ultra-high energy cosmic rays. TA uses the fluorescence detection technique to observe cosmic rays. In order to estimate the energy of cosmic rays with a fluorescence detector (FD), it is necessary to measure the condition of the observation area. Clouds affect the accuracy of the energy estimation. It is necessary to measure the existence of clouds and their direction in the Field Of View (FOV) of the FD. We developed a cloud monitoring system to measure the night sky weather using a CCD camera. In this report, we present our progress on our CCD cloud monitoring system.


Author(s):  
Oleg Savenko ◽  
Valeriy Martynyuk ◽  
Mykola Fedula ◽  
Liudmyla Koretska ◽  
Denys Makaryshkin

Author(s):  
Elena Romanyuk ◽  
Andrey Fedorov

Обоснованы преимущества использования зернистых фильтров в системах аспирации производственных помещений, в которых образуется и обращается горючая пыль. Рассмотрены некоторые известные конструкции, имеющие достаточно узкое применение, однако перспективные для обработки взрывоопасных пылегазовых потоков. Дано описание лабораторного стенда и приведены результаты экспериментальных исследований процесса фильтрования зернистыми фильтрами, подтверждающие необходимость контроля взрывоопасных ситуаций в работе пылеуловителя. Предложен автоматизированный способ контроля аспирации для предупреждения взрывоопасных состояний фильтра.There is a large number of technological operations associated with the treatment of combustible dusts at production facilities. Such industries include food, pharmaceutical, woodworking, metalworking, textile and other industries, the main technological equipment of which is supplemented with aspiration systems. According to the requirements of ecology, labour protection and fire safety, this system must include a dust collector. When choosing a dust collector for such systems granular filters are found particularly effective. They allow to precipitate combustible dust. The article presents the known constructions of granular filters, the narrow application of which is associated with insufficient study of their operation with explosive flows. Therefore, the authors developed an experimental stand and analyzed the operation of different filters: with metal balls, screws, peas and pea mash, grain, which can be used as filter material. During the experiment it was found a state in which the filter operation is explosive. According to the results of the analysis, the criteria for the descriptions of normal and explosive operation are introduced - the criteria of geometric form, characterizes the filter and dust - K, and the rate of filtration - T. Numerical values of criteria are given for automated control of the filter operation. The automated control method of the filter allows to make the operation of the aspiration system more efficient and prevents explosive situations by timely regeneration and replacement of the layer, taking into account the calculated value of criteria K and T. In the scheme there are shown fire extinguishing modules, which are triggered by sensors when the temperature rises above normal.


2011 ◽  
Vol 130-134 ◽  
pp. 2358-2363 ◽  
Author(s):  
Hai Lin Hu ◽  
Jing Li ◽  
Fang Li ◽  
Wei Zhu ◽  
He Qiang Pang

He sensing of the weld pool and controlling of torch at the center of the groove are important problems in back welding of GMAW (Gas Metal Arc Welding) for pipeline, furthermore, the gap of the groove perhaps is varied, which needs an intelligent control strategy to obtain the high welding quality. Fuzzy neural network control method based on BP algorithm is proposed in this paper, from the module of image processing, the corresponding gap location and width can be obtained. Then determine corresponding swing width and speed when weld gap is varied by the network fuzzy inference and calculating Euclidean distance for GMAW variable gap backing welding process. Experiment results show that the designed control method can improve the welding quality compared with traditional fixed swing and the traditional auto swing.


Sign in / Sign up

Export Citation Format

Share Document