Abstract

In this article we critically discuss the challenge of integrating contextual information, in particular spatiotemporal contextual information, with human and technical sensor information, which we approach from a geospatial perspective. We start by highlighting the significance of context in general and spatiotemporal context in particular and introduce a smart city model of interactions between humans, the environment, and technology, with context at the common interface. We then focus on both the intentional and the unintentional sensing capabilities of today’s technologies and discuss current technological trends that we consider have the ability to enrich human and technical geo-sensor information with contextual detail. The different types of sensors used to collect contextual information are analyzed and sorted into three groups on the basis of names considering frequently used related terms, and characteristic contextual parameters. These three groups, namely technical in situ sensors, technical remote sensors, and human sensors are analyzed and linked to three dimensions involved in sensing (data generation, geographic phenomena, and type of sensing). In contrast to other scientific publications, we found a large number of technologies and applications using in situ and mobile technical sensors within the context of smart cities, and surprisingly limited use of remote sensing approaches. In this article we further provide a critical discussion of possible impacts and influences of both technical and human sensing approaches on society, pointing out that a larger number of sensors, increased fusion of information, and the use of standardized data formats and interfaces will not necessarily result in any improvement in the quality of life of the citizens of a smart city. This article seeks to improve our understanding of technical and human geo-sensing capabilities, and to demonstrate that the use of such sensors can facilitate the integration of different types of contextual information, thus providing an additional, namely the geo-spatial perspective on the future development of smart cities.

Highlights

  • Cities are complex and dynamic systems that comprise a broad range of physical and environmental features, as well as social and human-related components

  • We focus on geo-sensor information fusion, considering multispectral data derived from remote sensors, which can provide additional insights for smart cities, including insights into matters of public health

  • We first highlighted the significance of context and introduced a model of interactions between humans, the environment, and technology within a smart city

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Summary

Introduction

Cities are complex and dynamic systems that comprise a broad range of physical and environmental features, as well as social and human-related components. The broad spectrum of technologies available today allows such features to be comprehensively quantified in unprecedented detail These include intrinsically geographic features such as current environmental conditions (weather, air quality, etc.), the public’s perception of urban spaces, and the public’s individual and collective behavioral responses to a range of urban functional settings including traffic infrastructures, open spaces and open places, neighborhoods and residential areas. Such settings are of considerable importance to environment-human interactions, in particular with respect to quality of life (QoL) [1].

Spatiotemporal Context for Smart Cities
Dimensions of Urban Geo-Sensing
Contextual Information as the Key for Smart Cities: A Geospatial Perspective
Integrating Contextual Information into Geospatial Analysis for Smart Cities
Towards a Geospatial Context-Awareness in Smart Cities
Information Fusion
From Geo-Sensor Information Fusion to Smart Cities
Conclusions and Outlook
Is Technology the Driving Force behind the Development of Smart Cities?
How Can Smart Cities be Identified?
Can Contextual Sensing Lead to a Better Quality of Life?
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