Data Access, Ownership, and Control

Knowledge ◽  
1994 ◽  
Vol 15 (4) ◽  
pp. 355-372 ◽  
Author(s):  
Stephen Hilgartner ◽  
Sherry I. Brandt-Rauf
Keyword(s):  
Data Access ◽  
And Control

Industry 4.0 Digital Technologies for data collection and control

2021 ◽  
pp. 43-58
Author(s):  
S. S. Yudachev ◽  
P. A. Monakhov ◽  
N. A. Gordienko
Keyword(s):  
Data Collection ◽  
Open Source ◽  
Software Defined Radio ◽  
Block Diagram ◽  
Data Access ◽  
Gnu Radio ◽  
Time Data ◽  
Object A ◽  
Data Propagation ◽  
And Control

This article describes an attempt to create open source LabVIEW software, equivalent to data collection and control software. The proposed solution uses GNU Radio, OpenCV, Scilab, Xcos, and Comedi in Linux. GNU Radio provides a user-friendly graphical interface. Also, GNU Radio is a software-defined radio that conducts experiments in practice using software rather than the usual hardware implementation. Blocks for data propagation, code deletion with and without code tracking are created using the zero correlation zone code (ZCZ, a combination of ternary codes equal to 1, 0, and –1, which is specified in the program). Unlike MATLAB Simulink, GNU Radio is open source, i. e. free, and the concepts can be easily accessed by ordinary people without much programming experience using pre-written blocks. Calculations can be performed using OpenCV or Scilab and Xcos. Xcos is an application that is part of the Scilab mathematical modeling system, and it provides developers with the ability to design systems in the field of mechanics, hydraulics and electronics, as well as queuing systems. Xcos is a graphical interactive environment based on block modeling. The application is designed to solve problems of dynamic and situational modeling of systems, processes, devices, as well as testing and analyzing these systems. In this case, the modeled object (a system, device or process) is represented graphically by its functional parametric block diagram, which includes blocks of system elements and connections between them. The device drivers listed in Comedi are used for real-time data access. We also present an improved PyGTK-based graphical user interface for GNU Radio. English version of the article is available at URL: https://panor.ru/articles/industry-40-digital-technology-for-data-collection-and-management/65216.html

A Blockchain-Enabled Approach for Online Stream Sensor Data Protection in Cyber-Physical Manufacturing Systems

2021 ◽  
Author(s):  
Zhangyue Shi ◽  
Chenang Liu ◽  
Chen Kan ◽  
Wenmeng Tian ◽  
Yang Chen
Keyword(s):  
Information Technologies ◽  
Manufacturing Systems ◽  
Rapid Development ◽  
Data Access ◽  
Sensor Data ◽  
False Alarms ◽  
Monitoring And Control ◽  
Stream Data ◽  
Physical Security ◽  
And Control

Abstract With the rapid development of the Internet of Things and information technologies, more and more manufacturing systems become cyber-enabled, which significantly improves the flexibility and productivity of manufacturing. Furthermore, a large variety of online sensors are also commonly incorporated in the manufacturing systems for online quality monitoring and control. However, the cyber-enabled environment may pose the collected online stream sensor data under high risks of cyber-physical attacks as well. Specifically, cyber-physical attacks could occur during the manufacturing process to maliciously tamper the sensor data, which could result in false alarms or failures of anomaly detection. In addition, the cyber-physical attacks may also illegally access the collected data without authorization and cause leakage of key information. Therefore, it becomes critical to develop an effective approach to protect online stream data from these attacks so that the cyber-physical security of the manufacturing systems could be assured. To achieve this goal, an integrative blockchain-enabled method, is proposed by leveraging both asymmetry encryption and camouflage techniques. A real-world case study that protects cyber-physical security of collected stream data in additive manufacturing is provided to demonstrate the effectiveness of the proposed method. The results demonstrate that malicious tampering could be detected in a relatively short time and the risk of unauthorized data access is significantly reduced as well.

scholarly journals Device-Based Security to Improve User Privacy in the Internet of Things †

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2664 ◽  
Author(s):  
Luis Belem Pacheco ◽  
Eduardo Pelinson Alchieri ◽  
Priscila Mendez Barreto
Keyword(s):  
Cloud Computing ◽  
Internet Of Things ◽  
Single Point ◽  
Data Access ◽  
Cloud Services ◽  
Sensitive Information ◽  
User Privacy ◽  
Privacy And Security ◽  
Iot Devices ◽  
And Control

The use of Internet of Things (IoT) is rapidly growing and a huge amount of data is being generated by IoT devices. Cloud computing is a natural candidate to handle this data since it has enough power and capacity to process, store and control data access. Moreover, this approach brings several benefits to the IoT, such as the aggregation of all IoT data in a common place and the use of cloud services to consume this data and provide useful applications. However, enforcing user privacy when sending sensitive information to the cloud is a challenge. This work presents and evaluates an architecture to provide privacy in the integration of IoT and cloud computing. The proposed architecture, called PROTeCt—Privacy aRquitecture for integratiOn of internet of Things and Cloud computing, improves user privacy by implementing privacy enforcement at the IoT devices instead of at the gateway, as is usually done. Consequently, the proposed approach improves both system security and fault tolerance, since it removes the single point of failure (gateway). The proposed architecture is evaluated through an analytical analysis and simulations with severely constrained devices, where delay and energy consumption are evaluated and compared to other architectures. The obtained results show the practical feasibility of the proposed solutions and demonstrate that the overheads introduced in the IoT devices are worthwhile considering the increased level of privacy and security.

Theft Preventive Measures for Interconnected Personal Computer Devices as Proactive Physical Security of Data

2021 ◽  
pp. 337-352
Author(s):  
Ekaterina Pshehotskaya ◽  
Oleg Mikhalsky
Keyword(s):  
User Behavior ◽  
Personal Data ◽  
Data Access ◽  
Security And Privacy ◽  
Portable Devices ◽  
Physical Security ◽  
Security Risks ◽  
Portable Computer ◽  
Relative Risks ◽  
And Control

This article is concerned with the arising problems and implications of physical security and privacy of personal and control data on portable computer devices, especially smartphones. The authors consider various classifications of portable computer devices, isolate smartphones as a most common device, and study types of user behavior regarding the involved security risks of unauthorized access to the data stored both locally and remotely with accent of physical data access via device theft. Based on provided categorization the researchers discuss the factors and criteria suitable to generalize user patterns and evaluate the corresponding vulnerability level against specified statistics. The considered statistical criteria can be formulated as a mathematical model of relative risks and implemented as a service or an application to be used for improving user awareness on current threats to his personal data and respective interconnected personal portable devices.

scholarly journals Building an HMI and Demo Application of WSN-based Industrial Control Systems

2011 ◽  
Vol 7 (2) ◽  
pp. 107-111
Author(s):  
Ali Abed ◽  
AbdulAdhem Ali ◽  
Nauman Aslam
Keyword(s):  
Control Systems ◽  
Low Cost ◽  
Data Access ◽  
Industrial Applications ◽  
Base Station ◽  
Temperature Monitoring ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Monitoring And Control ◽  
And Control

In this paper we present the details of methodology pursued in implementation of an HMI and Demo Temperature Monitoring application for wireless sensor-based distributed control systems. The application of WSN for a temperature monitoring and control is composed of a number of sensor nodes (motes) with a networking capability that can be deployed for monitoring and control purposes. The temperature is measured in the real time by the sensor boards that sample and send the data to the monitoring computer through a base station or gateway. This paper proposes how such monitoring system can be setup emphasizing on the aspects of low cost, energy-efficient, easy ad-hoc installation and easy handling and maintenance. This paper focuses on the overall potential of wireless sensor nodes and networking in industrial applications. A specific case study is given for the measurement of temperature (with thermistor or thermocouple), humidity, light and the health of the WSN. The focus was not on these four types of measurements and analysis but rather on the design of a communication protocol and building of an HMI software for monitoring. So, a set of system design requirements are developed that covered the use of the wireless platforms, the design of sensor network, the capabilities for remote data access and management, the connection between the WSN and an HMI software designed with MATLAB.

AUGMENTED FIFO CACHE REPLACEMENT POLICIES FOR LOW-POWER EMBEDDED PROCESSORS

2009 ◽  
Vol 18 (06) ◽  
pp. 1081-1092 ◽  
Author(s):  
SANGYEUN CHO ◽  
LORY AL MOAKAR
Keyword(s):  
Low Power ◽  
Energy Savings ◽  
Data Access ◽  
Replacement Policy ◽  
Embedded Processors ◽  
Cache Replacement ◽  
Implementation Cost ◽  
Control Logic ◽  
And Control ◽  
Cache Configuration

This paper explores a family of augmented FIFO replacement policies for highly setassociative caches that are common in low-power embedded processors. In such processors, the implementation cost and complexity of the replacement policy is as important as the cache hit rate. By exploiting the cache hit way information between two replacements, the proposed replacement schemes reduce cache misses by 1% to 18% on average depending on the cache configuration, compared with the conventional FIFO policy. The proposed schemes come at a small implementation cost of additional state bits and control logic. The reduction in cache misses directly translates into data access energy savings of 1% to 15% on average, depending on the cache configuration. Our work suggests that there is room for improving the popular FIFO policy at a small cost.

Adapting Reproducible Research Capabilities to Resilient Distributed Calculations

2016 ◽  
Vol 8 (1) ◽  
pp. 58-69
Author(s):  
Manuel Rodríguez-Pascual ◽  
Christos Kanellopoulos ◽  
Antonio Juan Rubio-Montero ◽  
Diego Darriba ◽  
Ognjen Prnjat ◽  
...  
Keyword(s):  
Open Access ◽  
Fault Tolerant ◽  
Data Access ◽  
Distributed Applications ◽  
Reproducible Research ◽  
Data Repositories ◽  
Metadata Standards ◽  
Definition Of ◽  
And Control ◽  
Application Developers

Nowadays, computing calculations are becoming more and more demanding due to the huge pool of resources available. This demand must be satisfied in terms of computational efficiency and resilience, which is compromised in distributed and heterogeneous platforms. Not only this, data obtained are often either reused by other researchers or recalculated. In this work, a set of tools to overcome the problem of creating and executing fault tolerant distributed applications on dynamic environments is presented. Such a set also ensures the reproducibility of the performed experiments providing a portable, unattended and resilient framework that encapsulates the infrastructure-dependent operations away from the application developers and users, allowing performing experiments based on Open Access data repositories. In this way, users can seamlessly search and lately access datasets that can be automatically retrieved as input data into a code already integrated in the proposed workflow. Such a search is based on metadata standards and relies on Persistent Identifiers (PID) to assign specific repositories. The applications profit from Distributed Toolbox, a framework devoted to the creation and execution of distributed applications and includes tools for unattended cluster and grid execution, where a total fault tolerance is provided. By decoupling the definition of the remote tasks from its execution and control, the development, execution and maintenance of distributed applications is significantly simplified with respect to previous solutions, increasing their robustness and allowing running them on different computational platforms with little effort. The integration with Open Access databases and employment of PIDs for long-lasting references ensures that the data related to the experiments will persist, closing a complete research circle of data access/processing/storage/dissemination of results.

scholarly journals EVALUATING COMPUTATIONAL COSTS WHILE HANDLING DATA AND CONTROL PARALLELISM

2008 ◽  
Vol 18 (01) ◽  
pp. 165-174 ◽  
Author(s):  
SONIA CAMPA
Keyword(s):  
Computational Cost ◽  
Data Access ◽  
Parallel Application ◽  
Semantic Framework ◽  
Computational Costs ◽  
Overall Performance ◽  
And Control ◽  
Rewriting Rules

The aim of this work is to introduce a computational costs system associated to a semantic framework for orthogonal data and control parallelism handling. In such a framework a parallel application is described by a semantic expression involving in an orthogonal manner both data access and control parallelism abstractions. The evaluation of such an expression is driven by a set of rewriting rules each of which is combined with a computational cost. We present how to proceed in the evaluation of the final cost of the application as well as how such information together with the semantic framework capabilities can be exploited to increase the overall performance.

scholarly journals SOA on Smart Manufacturing Utilities for Identification, Data Access and Control

Procedia CIRP ◽  
2018 ◽  
Vol 67 ◽  
pp. 162-166 ◽  
Author(s):  
Iman Ayatollahi ◽  
Jens Brier ◽  
Benjamin Mörzinger ◽  
Michael Heger ◽  
Friedrich Bleicher
Keyword(s):  
Data Access ◽  
Smart Manufacturing ◽  
And Control
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