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1. System overview
As the population ageing trend intensifies, modern young children are busy at work, and the elderly’s needs for daily care are increasing. The fall monitoring system is composed of a fall alarm terminal, a Zigbee network, a base station and a server, etc. The system can be flexibly configured with multiple Zigbee networks, and the number of fall alarm terminals is not ***. It mainly meets the management needs of concentrated living areas for the elderly in hospitals, nursing homes, and elderly communities, and realizes functions such as accidental fall alarm for the elderly, manual alarm for the elderly’s physical discomfort, positioning of the elderly’s missing whereabouts, and regular reporting of the elderly’s location and body posture information. The monitoring center monitors the current status of the elderly in real time, and can provide rescue in time when an accident occurs.
The “filial piety first” fall alarm terminal is a product based on the combination of MEMS technology and Zigbee technology independently developed by our company. It adopts innovative detection methods and perfect algorithms, and cooperates with the Zigbee self-organizing network to send out help information in real time. Realize functions such as automatic fall alarm, manual button alarm in emergencies, query of the main status of the machine, regular warm reminder, low battery reminder, and boot reminder. The terminal is compact and beautiful in appearance design, easy to carry, and is an intimate companion for the life of the elderly.
Zigbee network positioning is completed by the server through calculation. Using complex Gaussian algorithm, the highest positioning accuracy can reach 3 meters, which can accurately distinguish the floor where the elderly wearing the fall alarm terminal is located.
2. Technical indicators
| conventional | Numerical value |
| positioning accuracy: | 3 meters (best environment) |
| transfer method: | Wireless Zigbee |
| Communication distance: | 400 meters (visual) |
| power supply: | Built-in rechargeable lithium battery |
| Standby time: | 5~7 days |
| Operating temperature: | -15℃~+55℃ |
Three, system composition
Fourth, the system interface
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