The early philosophical standpoint of Professor Bogusław Wolniewicz alluded mainly to the so-called first philosophy of Ludwig Wittgenstein, as expressed in his Tractatus Logico-Philosophicus. Professor Wolniewicz’s views have found their expressions, first, in the book (in Polish) Things and Facts. An introduction to the first philosophy of Ludwig Wittgenstein (1968), and finally in his monograph (in Polish) Ontology of Situations. Foundations and Applications (1985). In both cases, Wolniewicz’ standpoint has been expressed by giving a substantive interpretation to semiotical and logical concepts (i.e. by producing hypostases). This practice looks rather dubious to me, in both cases, although I hope that ontology of situations can be usefully treated as a general formal theory of semantical correlates characteristic for sentential statements.
The Internet of Things (IoT) is an emerging technology that was conceived in 1999. The key components of the IoT are intelligent sensors, which represent objects of interest. The adjective ‘intelligent’ is used here in the information gathering sense, not the psychological sense. Some 30 billion sensors that ‘know’ the current status of objects they represent are already connected to the Internet. Various studies indicate that the number of installed sensors will reach 212 billion by 2020. Various scenarios of IoT projects show sensors being able to exchange data with the network as well as between themselves. In this contribution, we discuss the possibility of deploying the IoT in cartography for real-time mapping. A real-time map is prepared using data harvested through querying sensors representing geographical objects, and the concept of a virtual sensor for abstract objects, such as a land parcel, is presented. A virtual sensor may exist as a data record in the cloud. Sensors are identifi ed by an Internet Protocol address (IP address), which implies that geographical objects through their sensors would also have an IP address. This contribution is an updated version of a conference paper presented by the author during the International Federation of Surveyors 2014 Congress in Kuala Lumpur. The author hopes that the use of the IoT for real-time mapping will be considered by the mapmaking community.
In this paper, we describe secure gateway for Internet of Things (IoT) devices with internal AAA mechanism, implemented to connect IoT sensors with Internet users. Secure gateway described in this paper allows to (1) authenticate each connected device, (2) authorise connection or reconguration performed by the device and (3) account each action. The same applies to Internet users who want to connect, download data from or upload data to an IoT device. Secure Gateway with internal AAA mechanism could be used in Smart Cities environments and in other IoT deployments where security is a critical concern. The mechanism presented in this paper is a new concept and has been practically validated in Polish national research network PL-LAB2020.
The idea of using the Cloud of Things is becoming more critical for e-government, as it is considered to be a useful mechanism of facilitating the government’s work. The most important benefit of using the Cloud of Things concept is the increased productivity that the e-governments would achieve; which eventually would lead to significant cost savings; which in turn would have a highly anticipated future impact on egovernments. E-government’s diversity goals face many challenges; trust is one of the major challenges that it is facing when deploying the Cloud of Things. In this study, a new trust framework is proposed which supports trust with the Internet of Things devices interconnected to the cloud; to support the services that are provided by e-government to be delivered in a trusted manner. The proposed framework has been applied to a use case study to ensure its trustworthiness in a real mission. The results show that the proposed trust framework is useful to ensure achieving a trusted environment for the Cloud of Things for it to continue providing and gathering the data needed for the services that are offered by users through E-government.
Nowadays, the Internet connects people, multimedia and physical objects leading to a new-wave of services. This includes learning applications, which require to manage huge and mixed volumes of information coming from Web and social media, smart-cities and Internet of Things nodes. Unfortunately, designing smart e-learning systems able to take advantage of such a complex technological space raises different challenges. In this perspective, this paper introduces a reference architecture for the development of future and big-data-capable e-learning platforms. Also, it showcases how data can be used to enrich the learning process.
In the opinion of Bogusław Wolniewicz (1927–2017), Wittgenstein in his Tractatus presented a new metaphysics – a modern ‘metaphysics of facts’, in opposition to the traditional ‘metaphysics of substance’ (Aristotle) or to the ‘metaphysics of things’ (Tadeusz Kotarbiński’s ‘reism’). The new metaphysics describes, just like the old ones did, the structure of the world. First, it refers to the world as a whole, seeing in it an actualization of one of numerous possible worlds. It also refers to the elementary unit of world-structure, which is an ‘atomic fact’ (an independent unit, though at the same time not the simplest one, since it involves further ‘simple objects’). Those concepts of ‘world’, ‘atom’ and ‘possible beings’ make the system of Tractatus ‘metaphysics’, comparable to the Aristotle’s metaphysics of ‘form’ and ‘matter’. In Tractatus, the Aristotelian ‘matter’ turns into ‘simple objects’, while ‘form’ becomes a form of ‘fact’. In this view, the world is conceived as a set of facts and equals a particular choice made from the universe of possible situations. But one element is missing in Wittgenstein’s system, namely, the ‘efficient cause’ responsible for the choice of facts (actualization of possibilities). Leibniz believed there was a ‘sufficient reason’ why a particular choice was made among possible situations and one possible world has become real. This ‘sufficient reason’ finally turned out to be God’s rational will. In Wolniewicz’s late philosophy however, the ‘efficient cause’ is only ‘fate’ or ‘chance’ (τύχη). Fate is therefore the mysterious deus absconditus of Wittgenstein’s metaphysics.
This article discusses the traffic types typically used in industrial networks. The authors propose a number of methods of generating traffic that can be used in modeling traffic sources in the networks under consideration. The proposed traffic model have been developed on the basis of the ON/OFF model. The proposed solutions can be applied to model typical traffic types that are used in industrial systems, such as Time-Triggered (TT) traffic, Audio-Video Bridging (AVB) traffic or Best Effort traffic. The article discusses four traffic models with modifications and shows how the proposed models can be used in modeling different traffic types used in industrial networks.
The paper presents a circuit structure that can be used for powering an IoT (Internet of Things) sensor node and that can use energy just from its surroundings. The main advantage of the presented solution is its very low cost that allows mass applicability e.g. in the IoT smart grids and ubiquitous sensors. It is intended for energy sources that can provide enough voltage but that can provide only low currents such as piezoelectric transducers or small photovoltaic panels (PV) under indoor light conditions. The circuit is able to accumulate energy in a capacitor until a certain level and then to pass it to the load. The presented circuit exhibits similar functionality to a commercially available EH300 energy harvester (EH). The paper compares electrical properties of the presented circuit and the EH300 device, their form factors and costs. The EH circuit’s performance is tested together with an LTC3531 buck-boost DC/DC converter which can provide constant voltage for the following electronics. The paper provides guidelines for selecting an optimal capacity of the storage capacitor. The functionality of the solution presented is demonstrated in a sensor node that periodically transmits measured data to the base station using just the power from the PV panel or the piezoelectric generator. The presented harvester and powering circuit are compact part of the sensor node’s electronics but they can be also realized as an external powering module to be added to existing solutions.
Internet of Things (IoT) will play an important role in modern communication systems. Thousands of devices will talk to each other at the same time. Clearly, smart and efficient hardware will play a vital role in the development of IoT. In this context, the importance of antennas increases due to them being essential parts of communication networks. For IoT applications, a small size with good matching and over a wide frequency range is preferred to ensure reduced size of communication devices. In this paper, we propose a structure and discuss design optimization of a wideband antenna for IoT applications. The antenna consists of a stepped-impedance feed line, a rectangular radiator and a ground plane. The objective is to minimize the antenna footprint by simultaneously adjusting all geometry parameters and to maintain the electrical characteristic of antenna at an acceptable level. The obtained design exhibits dimensions of only 3.7 mm × 11.8 mm and a footprint of 44 mm2, an omnidirectional radiation pattern, and an excellent pattern stability. The proposed antenna can be easily handled within compact communication devices. The simulation results are validated through measurements of the fabricated antenna prototype.
With the increasing demand of customisation and high-quality products, it is necessary for
the industries to digitize the processes. Introduction of computers and Internet of things
(IoT) devices, the processes are getting evolved and real time monitoring is got easier.
With better monitoring of the processes, accurate results are being produced and accurate
losses are being identified which in turn helps increasing the productivity. This introduction
of computers and interaction as machines and computers is the latest industrial revolution
known as Industry 4.0, where the organisation has the total control over the entire value chain
of the life cycle of products. But it still remains a mere idea but an achievable one where IoT,
big data, smart manufacturing and cloud-based manufacturing plays an important role. The
difference between 3rd industrial revolution and 4th industrial revolution is that, Industry
4.0 also integrates human in the manufacturing process. The paper discusses about the
different ways to implement the concept and the tools to be used to do the same.