Wearable Safety Device Automatic Fall Detection and Alarm
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wearable safety devices are ineffective in automatically detecting and responding to dangerous situations, particularly for vulnerable individuals like the elderly and children, as they often require manual activation and lack automatic detection capabilities, leading to delayed or missed rescues.
Innovation Solution
A wearable safety device system comprising a processing unit, positioning unit, sensing unit, communication unit, camera, microphone, and emergency press key, which automatically detects abnormal states and sends alerts to preset rescue mobile phones, enabling real-time video and audio communication and continuous location tracking, even when the user is incapacitated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a manual alarm press key is designed in wearable positioning products, then users can send alarms when within safety range, but users cannot manually send alarms when in dangerous circumstances such as being incapacitated, comatose, or having hands and feet unable to move
Solution Approach 1:
The wearable device automatically detects dangerous circumstances through sensors (accelerometer, gyroscope, heartbeat sensor) and triggers alarms without requiring manual operation. The system serves itself by autonomously identifying fall states, abnormal movements, or safety range violations and initiating rescue communications automatically.
Solution Approach 2:
The patent replaces the mechanical manual press key system with an automatic sensor-based detection system. Instead of requiring physical button pressing, the system uses accelerometers, gyroscopes, and heartbeat sensors to detect dangerous states and trigger alarms automatically, substituting mechanical operation with electronic sensing and automated processing.
2Ease of manufacture
If products only generate alarm when preset safety range is exceeded, then alarm function is simple to implement, but users lose complete protection once products are taken off by someone or thrown in the range
Solution Approach 1:
The wearable device integrates multiple detection functions beyond simple geofencing: it includes fall detection through accelerometer and gyroscope, heartbeat monitoring, abnormal movement detection, and safety range monitoring. This multi-functional approach ensures comprehensive protection whether the user is within or outside the preset safety range, making the system universally applicable to various dangerous circumstances.
3Device complexity
If products lack automatic detection and judgment function, then device complexity is reduced, but products cannot discover occurrence of dangerous circumstances such as attacks, car accidents, kidnapping, or sudden death
Solution Approach 1:
The detection system is segmented into multiple specialized sensors and processing modules: accelerometer for fall detection, gyroscope for orientation monitoring, heartbeat sensor for physiological monitoring, and GPS for location tracking. Each component handles a specific aspect of dangerous circumstance detection, making the complex detection task manageable through functional segmentation.
Solution Approach 2:
The processing unit acts as an intermediary that receives data from multiple sensors (accelerometer, gyroscope, heartbeat sensor), analyzes the combined information, and determines whether a dangerous circumstance has occurred. This intermediary processing layer integrates inputs from various sources and makes the final judgment, bridging the gap between raw sensor data and alarm activation.
4Loss of time
If rapid automatic alarm generation is implemented, then rescue time is reduced, but device complexity and power consumption increase
Solution Approach 1:
The device performs preliminary actions by continuously monitoring sensors and pre-processing data in the background before dangerous circumstances occur. Fall detection algorithms, heartbeat analysis, and location tracking are continuously active, so when a dangerous event happens, the system is already prepared to immediately trigger the alarm without delay, achieving rapid response through advance preparation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid automatic alarm generation and rescue activation in dangerous situations, ensuring timely assistance for users in distress, including those who cannot manually trigger alarms due to incapacitation or being outside predetermined safety ranges.
Implementation Method 1
wherein the sensing unit comprises an accelerometer and a gyroscope
Implementation Method 2
wherein the sensing unit comprises an accelerometer and a gyroscope
Implementation Method 3
a positioning unit, used for positioning and giving date and time information
Implementation Method 4
a communication unit, used for communication with the mobile phone
Data Source
AI summary
A wearable device and method therefor. The wearable device comprises a processing unit, a storage unit, a positioning unit, a sensing unit, a communication unit, a power supply unit, a vibrator, a camera, a microphone, a loudspeaker and an emergency press key. The device detects the geographic location, body posture, and movepeoplet state, measures the forces applied on the device, and determines, on the basis of the comparison of the inclination angle value, acceleration value, and duration with corresponding thresholds in combination with the positive/negative signs of the duration and acceleration value, whether the device user is in the normal, abnormal or dangerous state. In case of the abnormal or dangerous state, different alert signals transmitted rescue cell phone and audiovisual communication can be enabled with the rescue cell phone, such that the device user can obtain help as soon as possible in different accidents.