Microcomputer Technology Research Articles

Control of molecular weight distribution through photoresponsive RAFT polymerization with a temporal program-controlled system

The polymer dispersity index (PDI) is a vital metric for characterizing molecular weight distribution, significantly influencing polymer material performance. However, achieving precise control over PDI in polymer synthesis remains a substantial challenge. In this study, we introduce an approach for modifying the PDI of poly(methyl acrylate) (PMA) in switchable reversible addition-fragmentation chain transfer radical polymerizations (RAFT). The devised strategy involves the utilization of photoresponsive hexaarylbiimidazole (HABI) as a mediator, coupled with temporal programming, to cyclically deactivate and reactivate propagating radicals at distinct stages throughout the polymerization process. The precise timing of the light stimulus is facilitated through computer-controlled single-chip microcomputer technology, ensuring automatic modulation of the optical state and mitigating operational inaccuracies. By manipulating external light conditions, the PDI of PMAs can be systematically adjusted within the range of 1.80–2.59. Validation through successful chain-extension experiments and analysis via MALDI-TOF MS confirm the preservation of good chain-end fidelity across PMAs with varying PDIs fabricated through this methodology.

A Precise Simultaneous Sowed Control System for Maize Seed and Fertilizer

To improve the utilization rate of maize seed fertilizer, this study aimed to propose a precise co-sowing control system for the real-time control of the relative position of seed fertilizer during the co-sowing operation. According to the operating speed of the machine, the longitudinal distance between the seed feeder and the outer groove wheel, the height of the seed and fertilizer falling, and the relative position of the seed and fertilizer falling into the soil, the calculation method for the seed and fertilizer falling into the soil was obtained, the precise co-seeding model of the seed fertilizer was constructed, the control algorithm of the precise co-seeding of the seed fertilizer was designed, and the hardware system and software system were designed. Based on the hardware structure and working principle of the motor drive seeding and fertilization control system, a functional circuit based on the STM32F103ZET6 single-chip microcomputer (Zhengdianyuanzi (Guangzhou) Technology Co., Ltd., Guangzhou, China) was built. When the system is working, the satellite speed measurement module collects the operating speed of the machine, the encoder feeds back the motor speed in real time, a Hall sensor detects the time interval between fertilizer and seed discharge at the point of discharge, and the PID algorithm is applied to make the speed regulation system regulate the motor speed and position and adjust the speed and position of the seed discharge tray and fertilizer on the outer slot wheel in real time. The relative position of seed and fertilizer in the soil can be controlled accurately in the process of sowing fertilizer. The test results showed that when the feed speed was 2, 3, and 4 km·h−1, and the grain spacing was 20, 25, and 30 cm, respectively, the seed fertilizer alignment was better and met the requirements of precise sowing, improving fertilizer utilization rate.

Computer Forensics and Advanced Methodology

The field of computer forensics emerged in response to the substantial increase in computer-related crimes occurring annually. This rise in criminal activity can be attributed to the rapid expansion of the internet, which has provided perpetrators with increased opportunities for illicit actions. When a computer system is compromised and an intrusion is detected, it becomes crucial for a specialized forensics team to investigate the incident with the objective of identifying and tracing the responsible party. The outcome of such forensic efforts often leads to legal action being taken against those accountable for the wrongdoing. The methodology employed in computer forensics continually evolves alongside advancements in crime approaches, particularly as attackers leverage emerging technologies. To ensure the accuracy of forensic investigations, it is imperative that the scientific knowledge underlying the forensic process be complemented by the integration of technological tools. A plethora of hardware and software options are available to facilitate the analysis and interpretation of forensic data, thereby enhancing the efficiency and effectiveness of investigations. While the fundamental objectives of computer forensics primarily involve the seamless preservation, identification, extraction, documentation, and analysis of data, the widespread adoption of this discipline is contingent upon the law enforcement community's ability to keep pace with advancements in computing technology. Furthermore, the prevalence of diverse computer devices resulting from the emergence of microcomputer technology also plays a crucial role in shaping the field of computer forensics. This research paper aims to provide a comprehensive overview of computer forensics, encompassing advanced methodologies and detailing various technology tools that facilitate the forensic process. Specific areas of focus include the analysis of encrypted drives, disk analysis techniques, analysis toolkits, investigations involving volatile memory, and the examination of captured network packets. By exploring these aspects, this paper aims to contribute to the existing body of knowledge in the field of computer forensics and support practitioners in their pursuit of effective investigative techniques.

Vacuum booster control system design and fault self-check strategies

In this paper, the software and hardware design of the vehicle vacuum pump control system was carried out based on single-chip microcomputer technology. Combined with the vacuum pump structure and control principle, the hardware design of the power supply, barometric pressure sensor, vacuum pressure sensor, current detection, and motor drive is carried out with the HS08 series single-chip microcomputer as the core. The software strategy design for barometric pressure signal acquisition, vacuum pressure signal acquisition, and vacuum pump driving has been completed, and the dual pressure vacuum pump control system for electric vehicles has been developed. The system can diagnose the common faults of the vacuum power system. Finally, the functional test of the control system is carried out. The results show that the system can work normally and that the design meets the expected requirements.

Preface

In order to meet the health and safety needs of our attendees and staff, 2022 2nd International Conference on Electronics, Circuits and Information Engineering (ECIE 2022) which was scheduled to be held in Xiamen, China was held virtually online during 7th to 9th, January, 2022. Being different from the traditional gatherings we all know, this virtual conference allows us to connect in new ways while keeping expenditure saving and maintaining social distancing. Presentations of presenter from different countries are accessible to hundreds of researchers effectively. There were 110 individuals who attended this online conference, represented many countries including Malaysia, Pakistan, India and China.ECIE 2022 is an international forum for scientists, engineers, and practitioners to present their latest research and development results in all areas of Electronics, Circuits, and Information Engineering. Conference topics mainly include but are not limited to Software engineering, Power and energy circuits, Optoelectronics, Single-chip microcomputer technology, etc. ECIE 2022 welcomes all high-quality research papers and presentations from related research fields.During the conference, the conference model was divided into three sessions, including oral presentations, keynote speeches, and online Q&A discussion. In the first part, some scholars, whose submissions were selected as the excellent papers, were given about 5-10 minutes to perform their oral presentations one by one. Then in the second part, keynote speakers were each allocated 30-45 minutes to hold their speeches. In the second part, we invited five professors as our keynote speakers. Prof. Jie Sun, Fuzhou University, China, performed a speech on Research on micro-LED based displays in China’s Mindu Innovation Laboratory. And then we had Prof. Kai Yang, Huazhong University of Science and Technology (HUST), China. He talked about New type of direct-drive permanent magnet motor and its robust control technology. Prof. Weigang Hou, Chongqing University of Posts and Telecommunications, China. He delivered a wonderful speech: Photonic CNN Accelerator. Prof. Ghani Albaali, Princess Sumaya University for Tech in Amman, Jordan, performed a speech: Using Computational Fluid Dynamics in the Processing Engineering. Lastly, we were glad to invite Prof. Debashis De, Maulana Abul Kalam Azad University of Technology, West Bengal, India as our finale keynote speakers. He shared a speech on Internet of Drone Things. Their insightful speeches had triggered heated discussion in the third session of the conference. Every participant praised this conference for disseminating useful and insightful knowledge.List of Committee member, Committee Chairs, Organizing Committee, Technique Programme Committee are available in this pdf.

Research on the Teaching Reform of ��Assembly Language and Microcomputer Technology�� Course under the Background of Ideological and Political Theory Guidance

Research on the Teaching Reform of ��Assembly Language and Microcomputer Technology�� Course under the Background of Ideological and Political Theory Guidance

Design and testing of a production line mechanism for continuous cutting and coring of broccoli

To achieve the continuous cutting and coring of broccoli and improve the automation level and efficiency of broccoli processing, an overall plan of a cylinder-driven, six-bar cutting-coring production line mechanism of broccoli was proposed. On this basis, a prototype of the production line was developed and tested. In this study, the kinematic model and parameter optimization model of the cutting-coring mechanism were established, and the optimal mechanism parameters was obtained by Genetic Algorithm (GA). Then, the contrast tests result of cutting trajectories showed that the error between the optimized actual cutting trajectory and the ideal cutting trajectory was 3.3%. Additionally, in order to realize the nonstop conveying of broccoli, the time required for cutting was acquired through the statistical test of cutting time, and the parameters of the noncircular gear mechanism were established. Meanwhile, the corresponding control system was designed based on single chip microcomputer technology to realize the linkage control of gear motor and cylinder. Finally, to verified the work efficiency of the developed prototype, cutting and coring tests were conducted, the average eligibility rate of the piece size was 91.7% and the average success rate of coring was 100%, satisfying the design index of the production line. All the results demonstrate that the proposed production line mechanism could be used for automated broccoli processing.

354 Awardee Talk: Midwest Cattle Feeding Over the Past 40 Years

Abstract The success of a cattle feeding region is dependent on many factors including resources and technology. Forty years ago, the once-dominant Midwest region had lost its competitive advantage in both areas. Today this industry has reinvented itself. This presentation reviews this journey and looks forward to new opportunities. There have been at least two disruptive technologies that affected cattle feeding, especially in this region over this time. The first is the convergence of microcomputer technology with the development of growth models based on the California Net Energy System. Decisions based on this new knowledge had a profound impact on feed conversion, growth and management. The second disruptive technology was the development of the ethanol industry and widespread availability of corn coproducts, especially high moisture corn coproducts. This development brought large quantities of a very high-quality feedstuff and inclusions in beef finishing diets became standard. Considerable research and education were needed to develop cost effective feeding programs with this new opportunity. Other changes have occurred across the cattle feeding industry over this time. Cattle size and carcass weights have continued a linear increase. Carcass quality and marbling has increased due to genetic selection, feeding endpoints and other factors. Improved growth technologies have continued to be developed and evaluated. Nutritional requirements of cattle for some nutrients have been fine-tuned but more work is needed. Disruptive technologies in the future may involve the convergence of precision livestock technology, smart sensors, artificial intelligence. Engineering developments and energy costs will affect the future of feed processing and delivery. Regardless of future technologies successful cattle feeding in the future will require access to feed resources, excellent nutrition and health management and strategies to manage risk.

Using Microcomputer Technology to Realize the Exploration of Electromechanical Equipment Automation of Extra-long Tunnel in Plateau Area

Tunnel engineering construction in high altitude and cold region is greatly affected by the environment, the construction difficulty is high, and the resource allocation is also different from ordinary mountains. In this paper, the mechanical and electrical equipment automation technology of extra-long tunnel in plateau region is explored for the reference of readers.

Application of PLC in Variable Frequency Constant Pressure Control System for Mine Emulsion Pump Station

Programmable logic controller (PLC) is an automatic control device made of microcomputer technology. It is based on sequential control, supplemented by loop adaptive, can complete logical judgment, timing, memory and numerical functions. The application of PLC in the variable frequency and constant pressure control system of mine emulsion pump station is studied. The emulsion pump station for mine is introduced. Based on the practice of energy saving, safety and protection equipment, the application of variable frequency speed regulation and constant pressure technology in emulsion pump is described. The working principle and PLC control system of emulsion pump control system are introduced by means of PLC circuit control. The experimental results show that the design of variable frequency and constant pressure control system based on PLC can greatly save energy consumption. In the variable frequency state, the average temperature of the pump body does not exceed 45°, indicating that the variable frequency constant voltage control system can improve the service life of the equipment.

Devising a procedure for assessing the subgrade compaction degree based on the propagation rate of elastic waves

This paper reports the analysis of the methods for estimating the technical condition of the subgrade underneath a constructed railroad track or road during its operation. The study results have proven that the issue related to monitoring and controlling high-quality compaction of a heterogeneous subgrade remains relevant and requires the construction of reliable experimental methods for assessing the subgrade degree of compaction. A procedure for determining the compaction of subgrade in the laboratory has been devised, based on inertial microcomputer technologies, which makes it possible to assess the degree of compaction of subgrade soils depending on the propagation rate of an impact's elastic waves. An experimental study has been performed into the propagation rate of elastic waves across a homogeneous subgrade made of coarse-grained sand and a heterogeneous subgrade made of coarse sand with a layer of clay in the middle of the prism. The study results established that the propagation rate of an elastic wave in a heterogeneous subgrade accepts a lower value than the rate of wave propagation in a homogeneous subgrade. Through the dynamic interpretation, by using a discriminant statistical analysis, the characteristic features have been defined in the distribution of accelerations in the body of the homogeneous and heterogeneous subgrade, depending on the degree of compaction, which would make it possible to monitor the state of the subgrade during operation. As the degree of the subgrade soil compaction affects the technical condition of roads

Atari Design: Impressions on Coin-Operated Video Game Machines by Raiford Guins

Reviewed by: Atari Design: Impressions on Coin-Operated Video Game Machines by Raiford Guins Jaroslav Švelch (bio) Atari Design: Impressions on Coin-Operated Video Game Machines By Raiford Guins. London: Bloomsbury Visual Arts, 2020. Pp. 244. Atari Design: Impressions on Coin-Operated Video Game Machines By Raiford Guins. London: Bloomsbury Visual Arts, 2020. Pp. 244. Video game scholarship has been criticized for its formalist tendencies, which result in the overemphasis on game rules and mechanics as opposed to the sociocultural contexts and the materiality of video game artifacts. Video game histories, too, tend to highlight the contributions of programmers responsible for the code and "game designers" responsible for mechanics and narratives, while overlooking other kinds of labor critical for the development of games. Raiford Guins has long been on a mission to rectify this. In his previous monograph, Game After, he provided (among other things) a detailed analysis of the cover art of Atari 2600 cartridges. Atari Design goes a step further and offers a gripping excursion into the workings of industrial and graphic design teams behind the Atari arcade cabinets of the 1970s and early 1980s. Instead of writing a history of game design, Guins proposes "a design history of video games" rooted in the history of design rather than game studies (p. 11). His unconventional approach is inspired by the work of Don Ihde (Technology and the Lifeword, 1990) and Siegfried Giedion (Mechanization Takes Command, 1948) and stresses the interaction of arcade machines with the bodies of the players and the surrounding environments. Guins is more interested in the surfaces, textures, and materials of the cabinets than what is happening on the screen or in the circuitry; he writes enthusiastically of Plexiglas and carpentry. To him, a cabinet "did not simply contain. It was a medium of communication designed to facilitate user experience, game play context, company identity, product harmony, and location acceptance" (p. 15). The book chronicles the Atari design process based on documents from Atari archives, as well as numerous interviews with the company's industrial and graphic designers. It argues that Atari's thoughtful cabinet design was an essential factor in arcade gaming's spread to a diverse range of locations and its public acceptance. Design, after all, shapes the meanings and perceptions of technological artifacts, as Guins shows by bringing up Eliot Noyes's design work for IBM. The book is divided into five main chapters, with the first tracing Atari cofounder Nolan Bushnell's own early efforts to design stylish cabinets that would fit into "sophisticated locations," such as the famous Pong cabinet; its woodgrain veneer signaled respectability and a break from the bad reputation of the Mafia-linked coin-operated amusement industry (p. 46). The core of the book focuses on the heyday of Atari's arcade operations and covers industrial design, graphic design, and location design (chs. 2–4). Recognizing the value of good design, Bushnell hired a group of design [End Page 930] graduates, from nearby San José State University, who gave Atari a significant edge over the competition. Guins paints a picture of a well-organized and professional design process that defies Atari's common media portrayal as a group of rule-breaking hippies; a part of Atari's success can also be attributed to the company's meticulous documentation procedures. A detailed production history of the game Video Pinball (Atari, 1979) reveals not only the complex interplay of various teams but also the interactions between the emerging microcomputer technology and "analog" processes of mechanical engineering and plastic molding. Guins also highlights the design contributions of George Opperman, who designed the Atari logo and led the team that solidified the stylish, forward-looking image of Atari. While Atari's unique cabinet designs later succumbed to growing industry standardization, this standardization is owed in part to Atari's success in making video games ubiquitous. In line with its focus on texture and design, this is a gorgeous publication—printed on glossy paper, with sixteen pages of color images. In one aspect, however, the visual appeal comes at the expense of usability. The book's thin sans serif font, while elegant, makes reading longer stretches of the book tiring for the...

WITHDRAWN: Application analysis of single chip microcomputer technology in IOT electronic intelligent products

This article has been withdrawn: please see Elsevier Policy on Article Withdrawal ( https://www.elsevier.com/about/our-business/policies/article-withdrawal ). This article has been withdrawn at the request of the Editor in Chief. Subsequent to acceptance of this special issue paper by the responsible Guest Editor Sundhararajan Mahalingam, the integrity and rigor of the peer-review process was investigated and confirmed to fall beneath the high standards expected by Microprocessors & Microsystems. There are also indications that much of the Special Issue includes unoriginal and heavily paraphrased content. Due to a configuration error in the editorial system, unfortunately the Editor in Chief did not receive these papers for approval as per the journal's standard workflow.

Mode Control System of Intelligent Lighting Scene

In this paper, through the wireless data communication technology to digital control of lighting, reach the purpose of reference light intelligent control, through the single chip microcomputer technology for home lighting more in terms of intensity, color, steering gear (each shift 6 or above) setting, a variety of tie-in, in order to meet the people under the condition of different patterns of lighting requirements of light.

Research on Application of Computer Monitoring System Technology in Eddy Current Meter

With the rapid development of measurement technology, measurement plays an important role in economic construction, scientific research and social life. With the development of intelligent and digital technology, there are more and more intelligent flow meters based on different measurement principles. With the improvement of industrial intelligence and industrial production, the demand for centralized monitoring of flowmeter and the formation of flow monitoring system is also growing. Based on the computer monitoring system technology of single chip microcomputer, can bus and configuration software, this paper designs a vortex flow system with open, reliable and communication functions, which improves the detection level of common vortex flow meter through the computer monitoring system technology.

Research on single chip microcomputer teaching platform based on wireless communication

SummaryIn view of the contradiction between the increasingly extensive application of single‐chip microcomputer technology in home appliances, digital products, medical equipment, automobile industry, aerospace and other fields, and the long learning cycle of the technology, which is not easy to master, a new single‐chip microcomputer teaching platform for high school students is designed. The teaching platform adopts the processing of completely transparent and moderately encapsulated in technical details, and learners can easily use the software and hardware resources to develop projects. This teaching platform can meet the learning needs of different levels of students in general technology courses of ordinary high school, play a positive role in improving the technical literacy of middle school students and enhancing the ability of technology application, and lay a good foundation for high school students to participate in student scientific research activities in colleges and universities in the future.

Microcomputer based embedded SCADA and RFID systems implemented on LINUX platform

Possibilities and ways of design, implementation and application of microcomputer based embedded SCADA and RFID systems implemented on LINUX platform are considered, proposed and described in the paper. It is proposed to use open source hardware and software microcomputer technologies for design and implementation of the systems. Major possibilities and advantages of implementation and application of such systems are described. One such practically designed and implemented system that performs data acquisition and appropriate control is presented and described. Technologies used to realize the system, as well as embedded application of such solution are described. The system hardware was implemented using open source microcomputer boards, RFID and other sensors, WiFi router and additional electronics. The system software was implemented using open source tools and programs and LINUX operating system. The system was realized using modular approach. It enables easy system expandability, simplifying maintenance and adapting of the system to user requirements and needs. Access to system monitoring and control is possible using web based user interface and command line interface. It is achieved balance between functionality and cost of the system. Main advantages of the system compared with standard SCADA and RFID systems are low cost of the system, optimization according to user requirements and needs and low consumption of electrical energy. It is specialized and optimized system for specific requirements and needs.

Exploration and Practice of Project-oriented Teaching of Application Technology of Single Chip Microcomputer

The application of microcomputer has a strong engineering practice, high technology, the traditional single-chip application technology courses prevalent students practice practical ability and so on. This paper summarizes and analyzes the existing problems in curriculum practice from the center of material theory in the traditional teaching mode to student, project and task as the center, the teacher teaching to the practice of student practice, Students as the main body, the project task-oriented teaching model, teachers design projects, provide practical places, the whole process of teaching to teaching, learning, innovation + integration, highlighting the ability of students to apply, and effectively improve the students’ engineering design awareness, enhance students' practice and innovation ability, lay a good foundation for future work.

Design of warm-acupuncture technique training evaluation device

To design a warm-acupuncture teaching instrument to train and evaluate its manipulation. We refer to the principle and technical operation characteristics of traditional warm-acupuncture, as well as the mechanical design and single-chip microcomputer technology. The device is consisted of device noumenon, universal acupoints simulator, vibration reset system and circuit control system, including frame, platform framework, the swing framework, universal acupoints simulator, vibration reset outfit, operation time circuit, acupuncture sensation display, and vibration control circuit, etc. It can be used to train needle inserting with different angles and moxa rubbing and loading. It displays whether a needle point meets the location required. We determine whether the moxa group on a needle handle is easy to fall off through vibration test, and operation time is showed. The device can objectively help warm-acupuncture training and evaluation so as to promote its clinical standardization manipulation.

Application of Single Chip Microcomputer Technology in the Measurement of the Motion of the Rod Body

Introduce a kind of STC89C52 to control the core motion rod body measurement system, the system can be measured the movement of the length of the bar body, a number were detected, calculate the cumulative length of the rod body of the. The system comprises a data acquisition unit, a calculation processing unit, voice broadcast unit, LCD display and keyboard operation unit etc. The system has achieved good results in actual measurement, after the actual test device, this system can realize forward, fast, accurate measurement, it has very good practicality.