Reliable Image Notifications for Smart Home Security with MQTT

Abstract

Internet of Things (IoT) applications utilize lowpowered battery operated devices and reliable event notifications depend on low-power messages from the sensors node to the server and vice versa over bandwidth constrained unreliable channels. Publish/subscribe communications protocols play an important part in such low-powered device communications with MQTT protocol being most prevalent for such deployments. These protocols have enabled IoT applications such as smart home, fleet management, oil pipelines and space exploration that heavily depend on reliable communications. This paper investigates utilization of MQTT protocol for a smart home security system. A Raspberry Pi implementation detects an intrusion event using a passive infrared sensor triggering an image capture which is then communicated to the subscribed client for countermeasures. Results for power consumption and data transfer are provided that help understand the behaviour with different service qualities.

SlowITe, a Novel Denial of Service Attack Affecting MQTT

“…In particular, after the CONNECT packet is sent to the server, the server has to keep the connection alive for a period of time equal to k = 1.5 times [60] the Keep-Alive parameter T , that is by default equal to T = 60 s [61,62]. This means that by sending a single CONNECT packet it is possible to keep the connection alive for k • T = T DoS = 90 s. Although similar exploitation on HTTP allows the attacker to keep connections alive for 300 s [59], found value should be considered relatively high, since it means that each connection requires (at the application layer) just s 1 +s 2 8•T DoS = 2.84 bps.…”

Person Detection with Deep Learning and IoT for Smart Home Security on Amazon Cloud

“…Message Queuing Telemetry Transport (MQTT) is the protocol commonly used for publishing messages from IoT devices [14], [15]. An image notification system for smart home using MQTT protocol is described in [14].…”

“…Message Queuing Telemetry Transport (MQTT) is the protocol commonly used for publishing messages from IoT devices [14], [15]. An image notification system for smart home using MQTT protocol is described in [14]. A room temperature control and fire alarm system utilising MQTT on AWS platform integrated a fire sensor, fire alarm, and sprinkler actuator on Wi-Fi [15].…”

Elasticity for MQTT Brokers in IoT Applications

“…In recent decades, many IoT applications have used MQTT brokers such as [6][7][8][9][10][11]. The typical structure of an IoT application using MQTT brokers deployed with remote centralized data centers (as in a Cloud environment) is depicted in Figure 1.…”