dan-de-lion"Elderly care through #AI" sounds heartwarming, doesn't it? Like a digital hug. But let's be real, this "acoustic scene recognition" is less about a helping hand and more about a digital ear pressed against the thin walls of #privacy. Today it's identifying the gentle clinking of a teacup; tomorrow, it's flagging a "suspicious" silence or an "unusual" number of trips to the bathroom. This well-intentioned monitoring of grandma's routine is just a hop, skip, and a software update away from becoming the all-seeing eye of the algorithm, scrutinizing every cough, every sigh, every deviation from the "normal" we've so helpfully defined for her.
It starts with noble intentions like fall detection or medication reminders. But the data trails we're creating, the intimate portraits of daily life painted by sound, are ripe for mission creep. Who decides what constitutes a "normal" routine? And what happens when "care" subtly morphs into control, when the algorithm's gentle nudge becomes an unyielding push? The road to digital #surveillance is often paved with good intentions, and our elders, in their vulnerability, risk becoming the unwitting canaries in this increasingly monitored coal mine.
Real-Time Acoustic Scene Recognition for Elderly Daily Routines Using Edge-Based Deep Learning
The demand for intelligent monitoring systems tailored to elderly living environments is rapidly increasing worldwide with population aging. Traditional acoustic scene monitoring systems that rely on cloud computing are limited by data transmission delays and privacy concerns. Hence, this study proposes an acoustic scene recognition system that integrates edge computing with deep learning to enable real-time monitoring of elderly individuals’ daily activities. The system consists of low-power edge devices equipped with multiple microphones, portable wearable components, and compact power modules, ensuring its seamless integration into the daily lives of the elderly. We developed four deep learning models—convolutional neural network, long short-term memory, bidirectional long short-term memory, and deep neural network—and used model quantization techniques to reduce the computational complexity and memory usage, thereby optimizing them to meet edge device constraints. The CNN model demonstrated superior performance compared to the other models, achieving 98.5% accuracy, an inference time of 2.4 ms, and low memory requirements (25.63 KB allocated for Flash and 5.15 KB for RAM). This architecture provides an efficient, reliable, and user-friendly solution for real-time acoustic scene monitoring in elderly care.