In this work, we sorted the human activity recognition into three problems (Figure 2) according to the attributes of the targeted task: body position-related problem, body action-related problem, and body status-related problem corresponding to the questions of “where”, “what”, and “how”...
The magnetic field created in a conductor would be negligible such that for practical uses, it is necessary to increase it; this is achieved by winding several turns of wire (coil) on a core that is usually made of ferromagnetic iron. The iron core is of low reluctance; it avoids ...