Programska potpora za prikaz podataka sa senzorskih čvorova

undergraduate thesis

• Title (english): Software for displaying data from sensor nodes
• Author: Ana Librenjak
• Mentor: Gordan Ježić (mentor)
• Committee member: Gordan Ježić (predsjednik povjerenstva)
• Committee member: Katarina Mandarić (član povjerenstva)
• Committee member: Pavle Skočir (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2020-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Razvojem koncepta Interneta stvari pametni umreženi uređaji i senzori postaju dio naše svakodnevice. Senzorski čvorovi odašilju veliku količinu različitih podataka koje je potrebno analizirati pohraniti i pregledno prikazati korisnicima. Tako uz razvoj Interneta stvari raste i potreba za sustavima koji efikasno analiziraju i pohranjuju očitanja sa senzora.

U ovom radu se opisuje razvijeni sustav za pregledavanje i skladištenje senzorskih očitanja primljenih sa senzorskih čvorova. Opisani su korišteni alati i tehnologije te razvoj programskog rješenja. Nabrojana su svojstva PostgreSQL baze podataka koja se koristi za pohranu podataka koji na senzor stižu putem MQTT protokola. Objašnjeni su REST i JPA preko kojih je ostvarena komunikacija između tri glavna dijela sustava: poslužiteljskog dijela, klijentskog dijela i baze podataka. U radu su prikazani i primjeri grafičkog prikaza očitanja senzora koji su ostvareni korištenjem JavaScript knjižnice CanvasJS.

Abstract (english)

As Internet of Things advances, smart devices and sensors are becoming part of our daily lives. Sensor nodes transmit a large amount of different data that needs to be analyzed, stored and displayed to users. With advancement of the Internet of Things comes a growing need for systems that efficiently analyze and store sensor readings.

This paper describes a developed system for displaying and storing sensor readings received from sensor nodes. Used tools, technologies and the development of the software solution are described. The properties of the PostgreSQL database used to store data arriving at the sensor via the MQTT protocol are listed. Communication between the three main parts of the system (the server part, the client part and the database) is achieved through REST and JPA. The paper presents examples of graphical display of sensor readings achieved using the JavaScript library CanvasJS.

• Keywords: Senzorski čvorovi; Spring; Java; MQTT; PostgreSQL; web aplikacija
• Keywords (english): Sensor nodes; Spring; Java; MQTT; PostgreSQL; web application
• Language: croatian
• URN:NBN: urn:nbn:hr:168:894699
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-13 12:53:21