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Utilizing Blockchain Technology to Improve WSN Security for Sensor Data Transmission

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Computers, Materials & Continua 2021年第8期68卷 1899-1918页

作者： Sung-jung Hsiao Wen-tsai Sung Department of Information Technology Takming University of Science and TechnologyTaipei City11451Taiwan Department of Electrical Engineering National Chin-Yi University of TechnologyTaichung41170Taiwan

This paper proposes a method for improving the data security of wireless sensor networks based on blockchain *** technology is applied to data transfer to build a highly secure wireless sensor *** this network,the relay stations use microcontrollers and embedded devices,and the microcontrollers,such as Raspberry Pi and Arduino Yun,represents mobile *** proposed system uses microcontrollers to facilitate the connection of various sensor *** adopting blockchain encryption,the security of sensing data can be effectively improved.A blockchain is a concatenated transaction record that is protected by *** section contains the encrypted hash of the previous section,the corresponding timestamp,and transaction *** transaction data denote the sensing data of the wireless sensing *** proposed system uses a hash value representation calculated by the Merkel-tree algorithm,which makes the transfer data of the system difficult to be tamped ***,the proposed system can serve as a private cloud data *** this study,the system visualizes the data uploaded by sensors and create relevant charts based on big data *** the webpage server of the proposed system is built on an embedded operating system,it is easy to model and visualize the corresponding graphics using Python or JavaScript programming ***,this study creates an embedded system mobile database and web server,which can utilize JavaScript program language and *** runtime environment to apply blockchain technology to mobile *** proposed method is verified by the experiment using about 1600 data *** results show that the possibility of data being changed is very small,and the probability of data being changed is almost zero.

关键词： Blockchain embedded system big data analysis python javascript node.js

Improving Speech Enhancement Framework via Deep Learning

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Computers, Materials & Continua 2023年第5期75卷 3817-3832页

Speech plays an extremely important role in social *** individuals suffer from a“speech barrier,”which limits their communication with *** this study,an improved speech recognitionmethod is proposed that addresses the needs of speech-impaired and deaf individuals.A basic improved connectionist temporal classification convolutional neural network(CTC-CNN)architecture acoustic model was constructed by combining a speech database with a deep neural *** sensors were used to convert the collected voice signals into text or corresponding voice signals to improve *** method can be extended to modern artificial intelligence techniques,with multiple applications such as meeting minutes,medical reports,and verbatim records for cars,sales,*** experiments,a modified CTC-CNN was used to train an acoustic model,which showed better performance than the earlier common *** a CTC-CNN baseline acoustic model was constructed and optimized,which reduced the error rate to about 18%and improved the accuracy rate.

关键词： Artificial intelligence speech recognition speech to text CTC-CNN

RFID Positioning and Physiological Signals for Remote Medical Care

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Computer Systems Science & Engineering 2022年第4期41卷 289-304页

作者： Wen-tsai Sung Sung-jung Hsiao Department of Electrical Engineering National Chin-Yi University of TechnologyTaichung411030Taiwan Department of Information Technology Takming University of Science and TechnologyTaipei City11451Taiwan

The safety of patients and the quality of medical care provided to them are vital for their *** study establishes a set of RFID(Radio Fre-quency Identiﬁcation)-based systems of patient care based on physiological sig-nals in the pursuit of a remote medical care *** RFID-based positioning system allows medical staff to continuously observe the patient's health and *** staff can thus respond to medical emergencies in time and appropriately care for the *** the COVID-19 pandemic broke out,the proposed system was used to provide timely information on the location and body temperature of patients who had been screened for the *** results of experiments and comparative analyses show that the proposed system is superior to competing systems in *** use of remote monitoring technology makes user interface easier to provide high-quality medical services to remote areas with sparse populations,and enables better care of the elderly and patients with mobility *** can be found from the experiments of this research that the accuracy of the position sensor and the ability of package delivery are the best among the other related *** presentation of the graphical interface is also the most cordial among human-computer interaction and the operation is simple and clear.

关键词： Remote medical care active RFID positioning physiological signal

Home Monitoring of Pets Based on AIoT

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Computer Systems Science & Engineering 2022年第10期43卷 59-75页

作者： Wen-tsai Sung Sung-jung Hsiao Department of Electrical Engineering National Chin-Yi University of TechnologyTaichung City411030Taiwan Department of Information Technology Takming University of Science and TechnologyTaipei City11451Taiwan

With technological and social development in recent decades,people have begun pursuing more comfortable lives that frequently feature household pets that are treated like members of the *** average,one out of every three households has a *** has also led to the creation and growth of many businesses in the pet industry.A few companies have developed a system that allows busy office workers to remotely care for pets at home based on the Internet of Things and an intelligent adjustment *** owners of two dogs,the authors of this study observed their pets’living habits and recorded environmental conditions that appear suitable for *** data were then used to develop an automatic control system to care for *** observational data on the pets’habits and environment were written in a program in Arduino by using the ESP8266 Wi-Fi *** module and booster module control is the switch and setting of various household *** to the loop setting of the program,the system does not need to manually switch or adjust the electrical settings of the ***,the pet's living environment is assessed by using various *** use of Arduino programs helps develop a system that can automatically adjust the environment to one that is most suitable for the pet's comfort.

关键词： Remote medical care active RFID positioning physiological signal

Utilizing the Improved QPSO Algorithm to Build a WSN Monitoring System

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Computers, Materials & Continua 2022年第2期70卷 3529-3548页

This research uses the improved Quantum Particle Swarm Optimization(QPSO)algorithm to build an Internet of Things(IoT)life comfort monitoring system based on wireless sensing *** purpose is to improve the quality of intelligent *** functions of the system include automatic basketball court lighting system,monitoring of infants’sleeping posture and accidental falls of the elderly,human thermal comfort measurement and other related life comfort services,*** the hardware system of the IoT,this research is based on the latest version of ZigBee 3.0,which uses optical sensors,3-axis accelerometers,and temperature/humidity sensors in the IoT perception *** the network transmission layer,the central network architecture is used for *** the application layer,we have designed a graphical interface for real-time values and information that can be read at any time and place using mobile *** this study,authors use the improved QPSO algorithm in the calculation part,so that the target can be effectively positioned outside the numerous surveillance *** study uses various sensor data fusion technologies to make the IoT system becomes able to provide more extensive and even better services than ever *** short,this research work has proven to be an effective way to reduce power consumption,improve medical quality and provide higher comfort for intelligent lift level.

关键词： Quantum particle swarm optimization IoT wireless sensor network ZigBee

An apoptosis-independent role of TRAIL in suppressing joint inflammation and inhibiting T-cell activation in inflammatory arthritis

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Cellular & Molecular Immunology 2018年第9期15卷 846-857页

作者： I-Tsu Chyuan Hwei-Fang tsai Hsiu-jung Liao Chien-Sheng wu Ping-Ning Hsu Department of Internal Medicine Cathay General HospitalTaipeiTaiwanChina Graduate Institute of Clinical Medicine College of MedicineNational Taiwan UniversityTaipeiTaiwanChina Graduate Institute of Clinical Medicine College of MedicineTaipei Medical UniversityTaipeiTaiwanChina Department of Internal Medicine Taipei Medical University Shuang Ho HospitalTaipeiTaiwanChina Graduate Institute of Immunology College of MedicineNational Taiwan UniversityTaipeiTaiwanChina Division of Rheumatology Department of Internal MedicineFar Eastern Memorial HospitalTaipeiTaiwanChina Department of Internal Medicine National Taiwan University HospitalTaipeiTaiwanChina

Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) has been implicated in the regulation ofinflammation in rheumatoid arthritis (RA), primarily due to its ability to promote apoptosis in synoviocytes andinfiltrating lymphocytes. The aim of this study was to investigate the immunomodulatory mechanism and role ofTRAIL in inflammatory arthritis. We created an animal model of inflammatory arthritis and demonstrated that TRAILsignificantly inhibited joint inflammation and reduced the severity of arthritis. The suppression of joint inflammationwas not due to the TRAIL-mediated induction of apoptosis in T cells, macrophages or synovial fibroblasts. Incontrast, TRAIL directly inhibited T-cell proliferation and suppressed the production of cytokines, which indicatedthat TRAIL exerted its anti-inflammatory effects by direct inhibition of T-cell activation. Moreover, TRAIL receptor(TRAIL-R)-knockout mice developed more severe disease, and the protective effects of TRAIL were abolished in theexperimental arthritis model in TRAIL-R knockout mice. From these results, we conclude that TRAIL suppressesjoint inflammation via an apoptosis-independent pathway and directly inhibits T-cell activation. Our results providea novel apoptosis-independent, immune regulatory role for TRAIL in suppressing inflammatory arthritis and shedlight on the development of effective new therapies for autoimmune inflammatory diseases.

关键词： collagen-induced arthritis T-cell activation TRAIL

A novel multisignature scheme for a special verifier group against clerk and rogue-key attacks

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第4期11卷 290-295页

作者： Jia-lun tsai Tzong-chen wu Kuo-yu tsai Department of Information Management National Taiwan University of Science and Technology Taiwan Information Security Center National Taiwan University of Science and Technology

The digital signature is a very important subject for network *** multiple signers and multiple verifiers,Xie and Yu(2004) pointed out that the multisignature scheme of Laih and Yen(1996) is vulnerable to a harmful *** attack can occur when a specified group of verifiers cooperate to forge a multisignature by secret key substitution following the leak of a secret key or by group public key adjustment during the process of renewing *** and Yu proposed an improvement of Laih and Yen's multisignature *** this paper,we show that Xie and Yu's scheme is vulnerable to clerk and rogue-key *** propose an improved multisignature scheme to resist such *** the proposed scheme,multiple signers can generate a multisignature for the message with the signers' secret keys,and the specified group of verifiers can cooperate to verify the validity of the multisignature with the signers' public keys and the verifiers' secret *** proposed scheme for a special verifier group not only has the advantages of Xie and Yu's scheme,but also is secure against clerk and rogue-key attacks.

关键词： Multisignature Clerk attack Rogue-key attack Cryptosystem

An evaluation framework for software crowdsourcing

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Frontiers of Computer Science 2013年第5期7卷 694-709页

作者： Wenjun wu Wei-Tek tsai Wei LI State Key Laboratory of Software Development Environment Beihang University Beijing 100191 China School of Computing Informatics and Decision Systems Engineering Arizona State University Tempe AZ85281 USA Department of Computer Science and Technology INLIST Tsinghua University Beijing 100084 China

Recently software crowdsourcing has become an emerging area of software engineering. Few papers have pre- sented a systematic analysis on the practices of software crowdsourcing. This paper first presents an evaluation frame- work to evaluate software crowdsourcing projects with re- spect to software quality, costs, diversity of solutions, and competition nature in crowdsourcing. Specifically, competi- tions are evaluated by the min-max relationship from game theory among participants where one party tries to minimize an objective function while the other party tries to maximize the same objective function. The paper then defines a game theory model to analyze the primary factors in these min- max competition rules that affect the nature of participation as well as the software quality. Finally, using the proposed eval- uation framework, this paper illustrates two crowdsourcing processes, Harvard-TopCoder and AppStori. The framework demonstrates the sharp contrasts between both crowdsourc- ing processes as participants will have drastic behaviors in engaging these two projects.

关键词： crowdsourcing software engineering competi-tion rules game theory

Intelligent Home Using Fuzzy Control Based on AIoT

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Computer Systems Science & Engineering 2023年第5期45卷 1063-1081页

作者： Sung-jung Hsiao Wen-tsai Sung Department of Information Technology Takming University of Science and TechnologyTaipei City11451Taiwan China Department of Electrical Engineering National Chin-Yi University of TechnologyTaichung411030Taiwan China

The Internet of Things has grown rapidly in recent years,and the technologies related to it have been widely used in various *** idea of this paper is to build a set of Internet of Things systems in a smart home wireless network environment,with the purpose of providing people with a more comfortable,convenient,and safe *** the sensing layer of the Internet of Things,we discuss the uses of common sensing technologies on the Internet and combine these with Arduino microprocessors to integrate temperature sensing modules,humidity sensing modules,gas sensing modules,and particulate matter 2.5(PM2.5)sensing *** the network layer,we discuss using the Wi-Fi wireless networking function composed of a home router and a wireless Wi-Fi chip Espressif system 8266(ESP8266)to transmit the collected home-sensing data to the ThingSpeak cloud ***,in the application layer part,the system uses a mobile device with fuzzy calculation optimization *** system is also connected remotely for home environment monitoring,so the home environment can be optimized anytime,anywhere.

关键词： Wireless sensor networks internet of things ESP8266 thingspeak fuzzy control