Development and Evaluation of Smart Home IoT Systems applied to HVAC Monitoring and Control

EAI Endorsed Transactions on Energy Web

João Afonso¹  Ruben Figueiredo¹  J. Pinto¹  Vitor Monteiro¹  Aníbal Alves²  José Afonso² 

[1] ALGORITMI Research Centre, University of Minho, Guimarães, Portugal;CMEMS-UMinho Center, University of Minho, Guimarães, Portugal;

关键词: internet of things;    smart home;    hvac;    bluetooth low energy;    wi-fi;    mqtt;    wireless sensor networks;   

DOI  :  10.4108/eai.19-11-2020.167205

来源: DOAJ

【 摘 要 】

This work describes the development and evaluation of two smart home-based Internet of Things (IoT) systems applied to HVAC(Heating,VentilationandAirConditioning)monitoringandcontrol,includingparameterssuchastemperature,humidity,airquality,smokedetection, andhumanpresence.Thesesystems arebasedonaflexiblehybridwirelessnetworkarchitecturecombiningBluetoothLowEnergy(BLE)andIEEE802.11/Wi-Fi,inordertoadapttotherequirementsofdifferenttypesofsensorandactuatordevices.Theoriginalimplemented networkisbasedonCypress PSoC 4 BLE boards and HyperText Transfer Protocol (HTTP), whereas the new network uses ESP32 boards and includes Message Queue Telemetry Transport (MQTT), a lightweight messaging protocol suitable for IoT devices which provides additional quality of service (QoS) mechanisms to guarantee the delivery of messages.A smart temperature control system was implemented in the BLE/Wi-Fi gateway (Raspberry Pi) to keep the room temperature inside a user-defined range. An online database was also developed using the Amazon Web Services (AWS) cloud platform, allowing the users to access the HVAC dataandcontrolthesystemparameters, throughtheInternet, usingamobileappdevelopedforAndroiddevices. Experimental tests were performed to validate the functionalities and performance of the developed systems. The obtained results demonstrate that the new network provides lower delay values compared with the original implementation.

【 授权许可】

Unknown