ZigBee realizes the nursing home care system solution

An Introduction

● Aging problem: A problem facing the whole world, but China is one of the countries with the most elderly population and the fastest aging rate in the world. According to the statistics of the National Aging Office, the current population of China over 60 years old has exceeded 170 million people, and by 2050 it will increase to more than 400 million people. As a relatively concentrated place for the elderly, welfare homes and elderly apartments are indispensable to establish a complete and intelligent care system.

● Welfare home plan: It is a practical system combining software and hardware designed and developed with the most advanced Zigbee wireless technology, combined with smart card, sensor and embedded system technology. The frequency band used by the system: the 2.4G ISM free frequency band that does not need to be applied is used, which meets the relevant national regulations on 2.4G channel wireless products. The background monitoring software integrates a variety of technical applications such as GIS (geographic information system), database, and graphical interface, adopts a modular design, and functional modules can be increased or decreased according to customer requirements.

Solution system composition

A: The system includes four parts:

â–  Smart RF terminal (including wireless identification card, wireless bed position sensor, etc.)

â–  Locator card reader unit (including wireless area locator, access control linkage controller, access control controller, etc.)

â–  Backbone network unit (including positioning controller, wireless network node, wireless network controller, etc.)

â–  Background monitoring software

B: Solution hardware equipment

Locator:

â–  It is used to receive the information reported by all the tags within its control coverage, and is transmitted to the backbone network through wired or wireless direction after internal processing. A highly integrated Zigbee micro-power wireless module is used internally

â–  Positioning coverage can reach 100M, wireless communication with the center can reach 1000M, plus directional antenna can adjust the signal coverage according to the actual application area

â–  Automatically report equipment status information regularly. Used for equipment failure detection

â–  Wireless networking can be used between the positioning card reader and the central base station, and RS485 or RS232 wired interface can be provided

â–  Adopt embedded system design, can work independently without network

â–  Relay output module can be embedded for access control

Central base station:

â–  Generally used in positioning controller, wireless network node, wireless network controller

â–  Built-in high-performance single-chip microcomputer or ARM9 processor integrated Zigbee micropower wireless module to meet the processing and forwarding of large amounts of data

â–  Use wired or wireless connection to the positioning card reader unit

â–  Single station coverage can reach 1000M, signal coverage can be adjusted according to actual application area

â–  Wireless center base station can adopt wireless ad hoc network, data relay transmission

â–  The wireless central base station uses RS232, RS485, network cable or optical fiber to connect to the background computer

Wrist terminal:

â–  2.4G free frequency band, automatic timing report status information, maximum communication distance 100M

â–  Adopt high-strength waterproof and wear-resistant ABS plastic, easy to reuse

â–  Actively report low voltage information when battery capacity is low

â–  Adopt a smart wireless chip with a smart design, low power consumption design, healthy and environmentally friendly

â–  Integrated vibration sensor, collect and transmit the daily activities of the elderly through the Zigbee network

â–  Alarm button design, if the elderly feel uncomfortable, press the alarm button to prompt the staff to go to the ambulance

Wrist terminal (deluxe version):

â–  Compared with the normal version, it integrates vital sign sensors, which can collect the vital signs of the elderly such as body temperature / pulse / blood pressure

Program features

â—† Real-time positioning function: through the binding of the elderly information and the wireless identity card, the monitoring computer of the duty room on each floor can understand the location information of the elderly on the floor in real time, which is convenient for nursing. When you need to find a specific old man, you can always determine the real-time position of the old man through the background database.

â—† Bed monitoring function: real-time monitoring of the bed monitor under the bed of the elderly, through sensing the pressure of the bed, you can know whether the elderly are resting in the bed, if the elderly leave the bed at night for too long ) When the set alarm time is exceeded, the bed monitor immediately sends an alarm to the duty room via Zigbee's wireless network, prompting and caring staff to check whether there is an unexpected situation.