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International Conference on Guidance, Navigation and control, ICGNC 2022

作者： Li, Zeshun Qi, Jia Zhou, Zhen Sun, Yongquan College of Measurement Control Technology and Communications Engineering Harbin University of Science and Technology Harbin150040 China

ISBN: (纸本)9789811966125

Frequency-using systems have become a hot research topic in various countries, and marine frequency-using systems are one of the typical systems. To accurately assess the reliability of the frequency-using system, this paper will take the marine frequency-using system as the research object, the regular area patrol as the mission, and the electromagnetic environment as the research background to carry out the reliability research. Firstly, the multistate system theory was introduced into the frequency-using system in the electromagnetic environment, and the multiple states of frequency-using equipment were effectively classified. Secondly, the state transfer matrix accurately described the influence of the electromagnetic environment on the state transfer process of frequency-using equipment. Then, the frequency-using equipment and system reliability modeling was established based on the state transfer matrix in the electromagnetic environment. Finally, the reliability model is validated using engineering arithmetic examples, and multidimensional analysis and suggestions are made for the results of the system. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Markov processes

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Design of improved road sign recognition system based on deep learning

Design of improved road sign recognition system based on dee...

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2022 International Conference on Geographic Information and Remote Sensing technology, GIRST 2022

作者： Ding, Wenfei Li, Wen Ma, Dezhong Electronic Information Engineering Institute Harbin Huade University Harbin China College of Measurement-Control Technology & Communications Engineering Harbin University of Science & Technology Harbin China

ISBN: (纸本)9781510662186

As the basis of intelligent vehicle environment identification, street sign recognition is a necessary condition to assist safe driving. It is of great significance for realizing automatic driving, improving intelligent transportation system and promoting smart city construction. Traditional traffic sign recognition technology is limited for complex scenes, and the recognition effect is also affected by weather and light. The road sign recognition system based on deep learning includes street sign detection and street sign recognition. YOLOv3 deep learning object detection method is adopted for road sign detection, and CCTSDB standard data set is used as experimental data to perform operations such as region trimming, batch conversion of data format, BM3D noise reduction and image preprocessing and enhancement technology. 1800 images were selected to form the training set and test set, which ensured the high efficiency and timeliness of the road sign detection algorithm. The road sign recognition system adopts the image recognition method of Darknet-53, and the algorithm is optimized. The trained system is detected under the test of CCTSDB dataset, and the detection accuracy is over 97%, and the detection time reaches 0.021s. Therefore, the system meets the requirement of accurate real-time processing of traffic sign detection and recognition system. © 2023 SPIE.

关键词： Noise abatement

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Cognitive Load State Analysis of Drivers Using Multimodal Physiological Data and Machine Learning in a VR Simulator

Cognitive Load State Analysis of Drivers Using Multimodal Ph...

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2024 International Conference on measurement, Communication, and Virtual Reality, MCVR 2024

作者： Tao, Xinyu Ma, Dezhong Xiong, Xiaotong College of Measurement-control Technology & Communications Engineering Harbin University of Science & Technology Harbin China Heilongjiang Province Key Laboratory of Laser Spectroscopy Technology and Application Harbin University of Science and Technology Harbin China

ISBN: (纸本)9781510691773

Driver inattention is the primary cause of highway accidents. Various distractions can impair driving performance, posing a significant threat to road safety. This study uses a VR driving simulator to examine distracted driving, creating a simulated driving environment. It involves designing main and sub-driving tasks to replicate the cognitive load and distractions experienced by drivers. Data are collected using NASA-TLX scales, eye-tracking technology, and physiological signal acquisition. The impact of different distraction workloads on driver performance was assessed using statistical analysis and support vector machines (SVM). A multi-source data fusion model was developed to discriminate distracted driving behaviors. This research aims to provide theoretical insights and practical guidance for improving safe driving practices. © 2025 SPIE.

关键词： Automobile driver simulators

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Construction of Pressure Vessel Accident Emergency Drill System and Design of Scoring Mechanism based on Virtual Reality technology

Construction of Pressure Vessel Accident Emergency Drill Sys...

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2024 International Conference on measurement, Communication, and Virtual Reality, MCVR 2024

作者： Wang, Xinmiao Ma, Dezhong Niu, Chenchen Han, Yichi Li, Zhichao College of Measurement-control Technology & Communications Engineering Harbin University of Science & Technology Harbin China Heilongjiang Province Key Laboratory of Laser Spectroscopy Technology and Application Harbin University of Science and Technology Harbin China

ISBN: (纸本)9781510691773

To address the issues of high risk, high cost, limited coverage, and low effectiveness in pressure vessel emergency drills, this study aims to construct a pressure vessel accident emergency drill system based on virtual reality technology. The system utilizes Unity3D to develop a human-computer interaction interface and implements various functional modules using C# scripting. The system incorporates features such as scenario simulation, safety education and training, interactive operations, multi-player collaboration, and feedback and evaluation, enabling drill participants to train and examine their emergency response skills within a virtual environment. To ensure the objectivity and comprehensiveness of the scoring system, this study employs a combined weighting method of the Entropy Weight Method and Analytic Hierarchy Process to analyze the weights of the operational steps in the exercise process. A comprehensive and objective scoring mechanism for the pressure vessel accident emergency exercise system has been designed, which evaluates the performance of the exercise personnel from multiple dimensions and levels. Furthermore, a comprehensive and objective rating mechanism for the emergency drill system of pressure vessels was designed to evaluate the performance of the drill personnel from multiple dimensions and hierarchical levels. This system effectively enhances participants' abilities in rapid response, emergency handling, and teamwork during accidents. © 2025 SPIE.

关键词： Virtual environments

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Ultrahigh electrochemical performance in mixed-valence Cu_(1.85)Sebased anode for supercapacitors

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Journal of Materiomics 2023年第1期9卷 62-71页

作者： Zhipeng Li Yi Niu Xinrui He Yalin Hu Fu Li Xing Chen Zhirong Wang Jing Jiang Chao Wang School of Electronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu611731China State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua UniversityBeijing100084China Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control College of Safety Science and EngineeringNanjing Tech UniversityNanjing210009China

Mixed-valence is an effective way to achieve high electrochemical performance of anodes for ***,inordinate mixed valence with more structural defects leads to structural *** development of mixed valence electrodes that can maintain a stable structure during the defect formation process is the key to resolving this ***_(2-x)Se with mixed-valence is a potential candidate,the stable monoclinic structure of Cu2Se can be transformed into another stable cubic structure(x>0.15).Herein,Cu_(1.85)Se anode with mixed valence reveals the ultrahigh specific capacity of 247.8 mA·h/g at 2 A/***,the introduction of multi-walled carbon nanotubes(MWCNTs)into Cu1.85Se further improves the specific capacity(435 mA·h/g at 2 A/g).XRD shows that the introduction of MWCNTs can improve the reversibility via chemical interactions and accelerate the electron transfer in the Cu1.85Se/***,the assembled symmetric supercapacitor(SC)device expresses a high energy density of 41.4 W·h/kg,and the capacity remains 83%even after 8000 charge/discharge *** research demonstrates the great potential of developing high specific capacity anode materials for superior performance supercapacitor.

关键词： Supercapacitor Mixed-valence Cu1.85Se/MWCNTs Anode Ultrahigh specific capacity

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Current Status and Future Perspectives of the Active Knee Joint Rehabilitation Device

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Recent Patents on engineering 2022年第4期16卷 11-29页

作者： Jiang, Jingang Gao, Ziwen Song, Shichang Yu, Xiaoyang Zeng, Yang Key Laboratory of Advanced Manufacturing and Intelligent Technology Ministry of Education Harbin University of Science and Technology Harbin150080 China School of International Studies Harbin Institute of Technology Harbin150001 China School of Measurement-Control Tech and Communications Engineering Harbin University of Science and Technology Harbin150080 China

Background: Today, living standards and medical technology are improving, and the aging global population is increasing. However, more and more older adults are suffering from knee diseases. This will seriously affect patients’ daily life and their mental state. In many studies, repeti-tive physical exercises and motor activities in real-world environments have been shown to help im-prove knee muscle strength and restore damaged nerves. Therefore, physical knee therapy is very nec-essary. The use of rehabilitation training devices for movement therapy has shown great potential. Objective: This study aimed at exploring the structural features, functions, and development status of the knee rehabilitation training device. Methods: This review explores the structure and function of various current knee rehabilitation devices based on structural and kinematic properties of the knee joint in relation to requirements of physical knee rehabilitation. This paper aims to present a systematic guideline and outline a refer-ence for future designers of rehabilitation devices. Results: By analyzing the structure and movement of the knee joint and combining the strategies of physical knee rehabilitation, movement requirements during knee rehabilitation training are con-cluded. According to the structure, drive form, transmission mode, and rehabilitation environment of knee rehabilitation devices, the devices are classified and compared;some typical features are summarized;some current problems are analyzed, and the future trends and development directions of rehabilitation devices are discussed. Conclusion: Current rehabilitation equipment has a variety of structures and functions, but a good balance between weight and volume is hardly maintained. The protection of the body needs to be further improved. Many knee rehabilitation devices are only concepts, not physical objects, and lack clinical trial data. Power sources and drives are large and heavy, which can compress the knee jo

关键词： Digital storage

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Research Advances on Passive Knee Joints Rehabilitation Device

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Recent Patents on Mechanical engineering 2022年第2期15卷 106-121页

作者： Jiang, Jingang Gao, Ziwen Wu, Dianhao Yu, Xiaoyang Guo, Yafeng Key Laboratory of Advanced Manufacturing and Intelligent Technology Ministry of Education Harbin University of Science and Technology Harbin150080 China Intelligent Machine Institute Harbin University of Science and Technology Harbin150080 China School of Measurement-Control Tech and Communications Engineering Harbin University of Science and Technology Harbin150080 China

Background: After a smooth development of life expectancy per capita and fertility in the nineteenth century, the global population increased in size. Along with the demographic shift in the late nineteenth century, the phenomenon of population aging began to appear in developed countries. A survey from UN reports that by 2050, one in six people worldwide will be over 65 years old (16%), compared to 11 (9%) in 2019. According to another survey, 55% of people over the age of 60 suffer from joint diseases, and the number of people suffering from stroke, arthritis and other knee diseases will also increase accordingly. Objective: An overview of the classification and characteristics of today's knee rehabilitation devices and future developments. Methods: This review discusses the existing knee rehabilitation devices, including various prod-ucts on the market, patents and some conceptual devices, in the context of the structural characteristics of the knee joint and the rehabilitation requirements of different knee conditions or after knee arthroplasty, and systematically introduces their structural features, differences and the rehabilitation effects achieved. Results: A comparative analysis of three types of passive knee rehabilitation devices according to their use was conducted to summarize the typical characteristics. The problems that exist in today's rehabilitation devices are also analyzed, and their development trends are looked forward to. Conclusion: Knee rehabilitation equipment has a high degree of structural richness, but it does not achieve a good balance of convenience, comfort and functionality, and there should be some room for improvement in the materials, volume of the power source and transmission form of the power system. There will be a good development in the future of knee joint recovery. © 2022 Bentham Science Publishers.

关键词： Surveys

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Research Progress of Bionic Water Strider Robot

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Recent Patents on Mechanical engineering 2022年第2期15卷 122-148页

作者： Jiang, Jingang Tan, Qiyun Yu, Xiaoyang Wu, Dianhao Yao, Liang Key Laboratory of Advanced Manufacturing and Intelligent Technology Ministry of Education Harbin University of Science and Technology Harbin150080 China Intelligent Machine Institute Harbin University of Science and Technology Harbin150080 China School of Measurement-Control Tech and Communications Engineering Harbin University of Science and Technology Harbin150080 China

Background: The bionic water strider robot can achieve sliding, jumping, and other movements on the water surface, having advantages of small size, light weight, flexible movements, and other characteristics. It can detect the quality of water, investigate and search the water surface, and perform some other operations. It has a very broad range of applications and development prospects. Therefore, the trend of biomimetic water strider robots is attracting more and more attention. Objective: This study aimed to review the bionic water strider robot and introduce its classification, characteristics, and development. Methods: This paper reviews various productions and patents related to the bionic water strider robot from 2003 to the present. The sources of the papers include CNKI, Wanfang, Patent publication an-nouncement in China, Web of Science, IEEE, Elsevier, Springer-Verlag, Espacenet, and FPO IP Research & Communities. To obtain the results, an endnote was used for documentation, and citeSapce was used for visual analysis. Results: The mechanical structure of existing bionic water strider robots has been analyzed and com-pared. Furthermore, the typical characteristics are concluded. The main problems in its development are analyzed, and the development trend is foreseen. Furthermore, the current and future research prospects of the productions and patents on the bionic water strider robot are discussed. Conclusion: The optimization and development of the structure of the bionic water strider robot and the development of associated components help to improve the simulation of the water strider's motion and perform a better task in a complex water surface environment. In the future, with the improvement in the research, the bionic water strider robot will develop into miniaturization, intelligence, and integration. © 2022 Bentham Science Publishers.

关键词： Bionics

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Active Capsule Endoscope Robot: Current Status and Future Perspectives

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Recent Patents on engineering 2022年第4期16卷 30-49页

作者： Jiang, Jingang Sun, Yang Song, Shichang Yu, Xiaoyang Wu, Dianhao Key Laboratory of Advanced Manufacturing and Intelligent Technology Ministry of Education Harbin University of Science and Technology No. 52 Xuefu Road Nangang District Heilongjiang Province Harbin150080 China School of International Studies Harbin Institute of Technology Harbin150001 China School of Measurement-Control Tech and Communications Engineering Harbin University of Science and Technology Harbin150080 China

Background: China is a big country with a vast territory, in which gastropathy has become a common high-incidence disease in daily life. Gastroscopy is an important means of diagnosis of gastropathy, but the use of a gastroscope causes a lot of pain to patients. A cable-free, non-invasive and painless diagnosis and treatment tool, an active capsule endoscope robot, can solve this problem very well. Capsule robot has become a new development hotspot. Objective: The study aims to provide an overview of the active endoscope capsule robot and introduce its classification, characteristics and development. Methods: This paper summarizes various scientific research achievements of the active endoscope capsule robot. The structural characteristics, advantages and disadvantages of various active endoscope capsule robots are introduced. Results: The active endoscope capsule robot has been analyzed and compared to other models. Its typical characteristics have been summarized. The main problems in its development are analyzed, its development trend is prospected, and the research status and future of active endoscope capsule robot are discussed. Conclusion: The active capsule robot is classified into two categories: bionic and non-bionic. The analysis shows that the capsule robot is an effective and safe initiative and has a very broad application prospect for various gastrointestinal tests compared to gastroscope, and helps alleviate the pain of patients. © 2022 Bentham Science Publishers.

关键词： Robots

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Study on Fiber Optic Sensor for Ethanol Gas Detection 13

Study on Fiber Optic Sensor for Ethanol Gas Detection

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13th International Conference on Advanced Infocomm technology, ICAIT 2021

作者： Chen, Qiru Diao, Tongruo Shi, Bufan Northeastern University College of Information Science and Engineering Shenyang China Intelligent Measurement and Control Division Shandong Giant E-Tech Co. Ltd. Shandong Jinan China

ISBN: (纸本)9781665431880

The combination of gas sensitive material and fiber optic sensor to realize human breath test is one of the important ways in breath testing. Therefore, this paper takes use of perovskite doping assisted by ultraviolet irradiation to improve the optical fiber sensitivity as to fabricate a kind of ethanol gas sensor involved by single-mode multimode single-mode fiber optic and to conduct verification, which explores the gas sensitive performance of the combination of fiber optic and new type composite materials. In the condition of ordinary temperature with ultraviolet irradiation, the ethanol gas could be measured accurately and stabled by selecting flower shaped ZnSnO3 doped with TiO2. © 2021 IEEE.

关键词： Gases

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