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1. System significance
1) The elderly seek help in emergencies, enter the dangerous area, take the initiative to warn, solve the problem of lagging accidents, expose the hidden dangers of accidents in advance, and avoid accidents;
2) The scene of the incident is reproduced, and the Internet of Things technology and the existing video can be linked to view the scene in real time, providing a basis for the deployment of relevant personnel to solve the emergency in time;
3) Reduce the workload of nursing home staff management, improve work efficiency, improve the informatization level of nursing home management, promote the institutionalization, standardization and real-time development of the management of the elderly in nursing homes, ensure the safety and stability of the elderly, and gradually realize the nursing home “Intelligent all-round supervision” has laid a solid foundation.
2. System architecture and program description
The personnel positioning system for nursing homes is based on the shortcomings of the current nursing home management system on the market by Shanghai Renwei Electronic Technology Co., Ltd., such as the precise positioning of the elderly, the need to locate each room, and the unconscious fall of the elderly asking for help and alarming problems. A security system developed based on the most advanced radio frequency identification technology, sensing technology, monitoring technology, communication technology, and RTLS real-time positioning technology. It satisfies the functional requirements such as automatic personnel entry and exit judgment management, precise positioning of personnel, regional positioning management, and alarm for help when falling. The system can also realize intelligent monitoring and management, personnel information management, cross-border alarm, button for help alarm, tracking and other functions. The level of safety management for the elderly has been greatly improved.
2.1 System architecture
2.2 Program description
Schematic diagram of regional positioning
useRFIDSemi-active technology is used for personnel regional positioning management. In each monitored area, such as each room, install low-frequency activators. Each low-frequency activator has 4 or 6 activation antennas, and adjacent 4 or 6 antennas. The room can share a low-frequency activator. In our positioning system, the low-frequency activator antenna is the smallest base point. The tag is activated within the range of 3-3.5 meters from the activator, and its positioning accuracy can be described as 3-3.5 meters. Activators in different areas have their own unique address codes. When a person enters the positioning base station with a semi-active low-frequency activation tag and is activated, the tag works normally. It sends the ID number of the tag to the outside world and also sends out the activation tag’s ID number. The address code of the activator, in this way, through the address code of the activator, we can locate the location of the label. When the tag is taken from one activator to another location, the uploaded activator address code will also change accordingly, thus forming a complete positioning system. The data uploaded by the tag is received by a large-scale positioning base station gateway, and the information is uploaded to the management center for processing, completing the entire positioning system.
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