Implementation of Sensor Network for Indoor Air Quality Monitoring Using CAN Interface

Abstract

Indoor air quality (IAQ) is a key factor for ensuring the safety, health and comfort of the people. Since physical variables describing IAQ, such as the concentration of volatile organic compounds (VOCs), concentrations of gaseous air contaminants and that of other toxic gases need to be closely monitored, concept of distributed monitoring and control network needs to be implemented.In this paper, a framework of sensor network for monitoring IAQ is explained where sensors are physically distributed and the serial common bus communication network CAN is used to exchange system information. CAN (Controller Area Network) is a high integrity serial bus protocol that is designed to operate at high speeds ranging from 20kbit/s to 1Mbit/s which provide an efficient, reliable and very economical link between sensor nodes and display node. This paper proposes Atmel CANary based sensor nodes and display node for the monitoring of indoor air quality. The communication between the sensor nodes and the display node through the CAN bus is evaluated through hardware tests.

A comprehensive review on indoor air quality monitoring systems for enhanced public health

“…Moreover, these researchers worked on low-cost sensors where calibration is a significant challenge, and it leads to a lack of performance for the overall design. Similar constraints were found with the approach followed by Pillai et al [37], where the system was studied on breadboards in a controlled lab environment only. Cheng et al [39] tried to implement a prediction model with CAN interface, but the study was again limited to PM levels only; the impact of other pollutants was not considered in this study.…”

“…The system used to make useful decisions about ventilation equipment in the premises depending upon the threshold level of air quality parameters. Pillai et al [37] implemented a sensor network for IAQ monitoring using the Controller Area Network (CAN) interface. In order to run the experiment on a real-time basis, the sensors were distributed in a specific area, and a serial standard bus communication network was used for information exchange between them.…”

Indoor air quality analysis and sustainable practices

“…The authors of [1] implemented a sensor network for IAQ monitoring using the Controller Area Network (CAN) interface. In order to run the experiment on the area-time basis, the sensors were distributed in a specific area, and a serial standard bus communication network was used for information exchange between them.…”

Analysis of current attacks on the CAN bus and development of a new solution to detect these types of malicious threats

“…A local Area Network called the CAN bus was initially created to control industrial and automotive equipment. A serial broadcast bus standard, CAN is used to connect peripherals for electronic control units (ECUs), or microcontrollers, known as multiplexing [8]. A failure in any one component has no impact on the rest.…”