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[{"key": "dc.contributor.advisor", "value": "Hakala, Ismo", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Palosaari, Tuomas", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2019-12-18T06:56:35Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2019-12-18T06:56:35Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2019", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/66895", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Tutkielman tarkoituksena oli perehty\u00e4 esineiden internetin ja erityisesti langattomien sensoriverkkojen perusteknologioihin ja eri laitteiden yhteentoimivuuteen liittyviin ongelmiin. Esineiden internetin laitekirjo on valtava eik\u00e4 viel\u00e4 ole mit\u00e4\u00e4n varsinaista standardia eri j\u00e4rjestelmien keskin\u00e4iseen kommunikaatioon. Olisi kuitenkin suotavaa, ett\u00e4 j\u00e4rjestelm\u00e4t k\u00e4ytt\u00e4isiv\u00e4t internetiss\u00e4 jo k\u00e4ytett\u00e4vi\u00e4 teknologioita, kuten HTTP, HTTPS tai CoAP. Yhteentoimivuuden suhteen ongelmaksi muodostuu k\u00e4ytett\u00e4vien viestien muoto ja tiedon esitys. Jokaisella laitevalmistajalla on oma tapansa enkoodata ja esitt\u00e4\u00e4 mittaustieto. T\u00e4h\u00e4n tarjotaan ratkaisuksi niin sanottuja teknologian sovituskerroksia. Helpoiten t\u00e4m\u00e4n roolin hoitaa eri j\u00e4rjestelmien v\u00e4lille rakennettu yhdysk\u00e4yt\u00e4v\u00e4palvelu.\n\nTutkielman teoriaosuudessa vertailtiin WWW-sovelluspalveluteknologioita langattomien sensoriverkkojen n\u00e4k\u00f6kulmasta ja esiteltiin lyhyesti langattomien sensoriverkkojen k\u00e4ytt\u00e4mi\u00e4 tiedonsiirtoprotokollia, tiedon esitys- ja varastointitapoja sek\u00e4 eri standardointiorganisaatioiden ja projektien tuottamia rajapintam\u00e4\u00e4ritelmi\u00e4 ja tiedon esitystapoja. T\u00e4m\u00e4n lis\u00e4ksi perehdyttiin tarkemmin TTY:n kehitt\u00e4m\u00e4\u00e4n WSN OpenAPI -rajapintam\u00e4\u00e4ritelm\u00e4\u00e4n. \n\nTutkielman tuloksena syntyi Kokkolan yliopistokeskuksen informaatioteknologian yksik\u00f6n k\u00e4ytt\u00f6\u00f6n WSN OpenAPI -m\u00e4\u00e4ritelm\u00e4\u00e4 mukaileva REST-rajapinnan tarjoava palvelu sek\u00e4 kevyt web-asiakasohjelma, joka hy\u00f6dynt\u00e4\u00e4 t\u00e4t\u00e4 rajapintaa.\n\nT\u00e4llaisilla yhdysk\u00e4yt\u00e4vill\u00e4 on mahdollista yhdist\u00e4\u00e4 useita eri standardeja k\u00e4ytt\u00e4vi\u00e4 sensoriverkkoja toisiinsa, mutta t\u00e4m\u00e4 edellytt\u00e4\u00e4 jokaiselle erilaiselle verkolle omaa yhdysk\u00e4yt\u00e4v\u00e4\u00e4. T\u00e4m\u00e4 voi olla haaste usean eri laitevalmistajan laitteita k\u00e4ytett\u00e4ess\u00e4.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "The purpose of this thesis was to get acquainted with the basic technologies of the Internet of Things and more specifically the wireless sensor networks and problems related to interoperability of different devices. The IoT device spectrum is enormous and at the time of writing there is no one standard for communication between different systems. It would be desirable for systems to use technologies that are already in use on the Internet such as HTTP/HTTPS and CoAP. The form and representation of the messages and information are the problems with interoperability. Each device manufacturer has their own way of encoding and representing the measurement data. So-called technology adaptation layers are offered as a solution. These layers are most easily handled by building gateway services between different systems.\n\nThe theory part of the thesis consists of comparing web service technologies from the point of view of wireless sensor networks, the different ways of presenting and storing the data and the interface specifications produced by different standardization organizations and projects. In addition, the WSN OpenAPI interface developed by TUT was further explored.\n\nA service providing a REST API conforming to the WSN OpenAPI specification and a lightweight web client utilizing the API was produced as a result of this work for the Information Technology unit of the Kokkola University Consortium Chydenius.\n\nWith gateways such as the one created it is possible to connect sensor networks using different standards for communication, but this requires the implementation of a new gateway service for each different network. This can prove to be a challenge when using devices from several different manufacturers.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2019-12-18T06:56:35Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2019-12-18T06:56:35Z (GMT). No. of bitstreams: 0\n Previous issue date: 2019", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "77", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.title", "value": "Langattomien sensoriverkkojen yhteentoimivuus yhdysk\u00e4yt\u00e4v\u00e4tasolla", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201912185370", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Informaatioteknologian tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Information Technology", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Informaatioteknologia", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Information Technology", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Tietotekniikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Mathematical Information Technology", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "602", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "sensoriverkot", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "esineiden internet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "yhteentoimivuus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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