Home safety for seniors requires fall detection devices as essential technologies. According to studies, falls are a serious hazard that often lead to significant morbidity and loss of independence among older adults. Therefore, assistive devices which reliably detect falls and trigger alarm systems are necessary. While passive monitoring systems currently available exist that detect falls, not all are equally effective; some rely on single sensors which may trigger false activations due to environmental variables; whereas others employ sensor fusion techniques which limit false alarms. 
 
Context-aware and wearable fall detection systems offer two primary forms of fall detection systems. elderly fall alarm Context-aware systems use sensors placed strategically around an environment for detection purposes while wearable devices feature fall detection technologies integrated into an emergency response device (PERD). 
 
Both systems collect physiological sensing layer data, transfer it to communication layers for analysis by information processing layers, and present results to user application layers in order to distinguish different events such as falls, motion, or activities of daily living (Figure 4). The goal of research in this field is to achieve high sensitivity and specificity while simultaneously minimizing false alarms. 
 
Studies focusing on sensor fusion for this purpose have explored this approach as it's believed that multiple sensors combine together for more accurate and robust fall detection. Multiple sensors reduce risk from environmental factors that might otherwise activate false alarms while improving sensitivity and making results easier to interpret [9]. 
 
 
Reliable and user-friendly systems are crucially important, particularly when used by older adults who may become disenchanted if too many false alarms occur, or if it misses an individual falling, leaving them on the floor for extended periods which can have serious health ramifications, including hip fractures or even death. 
 
Medical alert systems that offer built-in fall detection typically use accelerometers and other sensors to monitor changes in movement, body position, impact or hard landings and typically include a help button that can be pressed in case of emergency response center calls or family/caregiver concerns. medical alert Most medical alerts with fall detection work well; however, it's always wise to read your user manual because some systems may contain specific exceptions that need to be considered when using such features. 
 
angelsense These systems are generally designed to be discreet and unobtrusive so as not to trigger everyday activities such as moving around the house or walking down stairs. Some can be worn on wrists while others are embedded into clothing or bracelets. When necessary, additional sensors such as motion or temperature detectors may also be added, with cancellation options readily available when no longer needed. 

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