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1. Project background
As the trend of population aging is accelerating, the elderly population is increasing, and there are many issues concerning the safety management of the elderly. The nursing home is a very important place for the elderly to live and live. Therefore, the safety management of the elderly in nursing homes has become an issue of increasing concern to the society. In response to the current needs of large-scale public places such as nursing homes for personnel entry and exit management, intelligent areas, precise positioning, and help alarms, there are currently various types of solutions on the market, from the initial GPS positioning management to mobile phone positioning management In the later passive RFID, the management level of the elderly in nursing homes has been improved to varying degrees, and the safety issues for the elderly have been effectively solved, but there are still some problems. For example, the signal coverage and the precise positioning of the elderly need to be located in each area to facilitate the security inspection personnel to deal with the problem as soon as they receive the alarm, and the elderly unconsciously fall and ask for help. The above systems do not Method to resolve.
In view of the existence of these problems, combined with the technical advantages of Suzhou Xindao Intelligent Technology Co., Ltd. in the field of active RFID technology, our company deliberately developed this system “Regional Positioning Management System for Nursing Home Personnel”. This solution wears an active electronic wristband tag for each elderly person, so that the administrator can know the trajectory of the elderly in real time and accurately without tracking them all the time. Each label records the basic information, health status, medical history and family contact information of the elderly in the management system. Through the visual software system, it is easy to locate and view at any time and facilitate the intelligent management of elderly apartments. At the same time, it can well solve the functional requirements such as automatic identification of the entry and exit of personnel, regional positioning management of the location of community security personnel and the elderly under supervision, and fall/emergency medical assistance alarms. The system can also realize intelligent monitoring and management, personnel information management, cross-border alarm, button for help alarm, historical walking trajectory tracking and other functions. The level of safety management for the elderly has been greatly improved, and the intelligent management of apartments for the elderly has been realized.
2. System introduction
In response to the needs of elderly apartments, we designed the following systems:
A fixed reader is installed at the door of each room and the exit of each floor, at the door of each building and at the door of the apartment, which are used to identify the wristband tag monitored by the floor of each elderly person, so that the monitoring computer on the floor (in the Monitoring room) or the administrator’s portable PDA, you can grasp the physical location and other information of the elderly. In this way, 24-hour real-time status monitoring of the elderly and administrators is realized, and the safety of the elderly is guaranteed. Our goal is to reduce the frequency of accidents and improve the management level of the apartment by improving the care of the elderly.
A battery-powered RFID wristband tag is attached to the elderly, and identification tags are placed at the door of each room, the exit of each floor, and the door of each building and apartment, and transfer positioning data to the location software. The physical location of the can be displayed graphically in the interface of the control software.
The RFID elderly positioning system usesRFIDActive smart electronic tags work at 2.4GHz and will not cause interference to other medical equipment. Its size is about 4*7cm, and its thickness is less than 2mm. It can be made into wristbands, badges and other forms. Wear electronic tags for the elderly who need to be tracked and guarded, and you can grasp their real-time information with one hand. The real-time location, status and other information of the elderly can be monitored through the local network, and then read out in the control software. The apartment management staff can learn the real-time location and status information of the elderly by simply operating the mouse, so as to quickly find them and implement corresponding medical procedures.
Three, system principle
First, install a number of card readers at the entrance of each room in the building, the exit of each floor and the entrance of the building, and connect them to the computer in the care room on each floor through network wiring.
At the same time, each old man wears a wristband tag (electronic tag), and each old man’s wristband tag is matched with the card reader in the room he is in. When an elderly person wearing an electronic wristband enters the building, as long as he passes or approaches any card reader placed in the hospital, the card reader will immediately sense the signal and upload it to the computer in the corresponding care room immediately, and the computer can immediately determine Provide specific information (such as: who, where, specific time, physical condition, etc.), and determine whether the elderly walked to the wrong room, and display it on the computer screen of the intensive care unit and make a backup. The administrator can also click on a certain location in the hospital according to the distribution diagram on the large screen or on the computer, and the computer will then count and display the personnel in this area. If the elderly leave the room within the specified time, the monitoring room will send a signal and display the specific situation of the personnel, whereabouts and the estimated time of return.
Similarly, if the elderly are not in the room or go to the wrong room within the specified time, the monitoring room will issue an alarm to remind the administrator to perform corresponding management operations.
There is a small button on the wristband. If the elderly are in an emergency, they can press the button to notify the management staff that there is an emergency and they need help. When an elderly person presses the button, the nearby card reader can recognize it and send a signal to the control center to inform the control center of the specific location of the elderly.
The computer in the monitoring room will sort out various activity tables of each elderly person in this period based on the movement information of the elderly for a period of time. In addition, once an accident occurs in the apartment, the personnel at the accident site can be found immediately based on the personnel distribution information in the computer, and then special detectors can be used to further determine the location of the personnel at the accident site to help managers solve it in an accurate and rapid manner accident.
If the accident cannot be resolved in the monitoring room, the management personnel of the monitoring room can directly notify the personnel of the general monitoring center to request support. According to the information of the wristband, locate the specific geographic location, the large screen of the main monitoring center can be connected to the video surveillance, locate a specific monitoring screen, monitor the situation, and take the corresponding next step according to the situation in time.
The monitoring interface of the general monitoring room on the first floor:
It is composed of computer and software system. So as to realize the supervision of the elderly, and then cooperate with the relevant front-end information extraction equipment and the alarm to realize the alarm function.
Four, system function
1) Real-time positioning
According to the RFID terminal equipment worn by the elderly, it can be located as long as it is in the community and displayed on the electronic map. When looking for the location of a certain person, input the name or number of the person to quickly locate the location of the person and staff to be searched. Anywhere (anywhere), Anytime (anytime), Anything (anything), ensure real-time movement is accurate and reliable, provide protection for the safety of the elderly, and provide strong support for the management of staff.
2) History tracking
The location of personnel can be dynamically displayed on the electronic map in real time, and managers can dynamically grasp the number and distribution of personnel. Move the mouse to the icon of the personnel to view the detailed information of the personnel. The system can record the time and place passed by all personnel around the clock, track and replay the movement route of the personnel, and master the route and time of their detailed activities.
3) Access control integration
When passing through some important entrances and exits, personnel’s terminals will be connected toRFID readerFor communication, it makes good use of the characteristics of RFID long-distance recognition, mass reading, the elderly do not need to swipe the card, everything is fully automated, and every information read will be transmitted to the back-end management system and recorded in the database. Supports the reading of high-speed moving objects or personnel data.
4) File management
From the first day of the elderly’s stay, the elderly’s information can be entered into the system, including basic information, health information, precautions, etc. The terminal for distributing the elderly has RFID electronic tags. The tags can store some information and have a unique ID number, which can be bound according to the information in the database. Managers can assign different permissions to the staff, can add, delete, modify and check the information of the elderly, edit and process the file information of the elderly at any time, and realize the whole process management of the elderly. The biggest feature is that people can be used as nodes, and can be tracked and addressed. This is also the core essence of the Internet of Things.
5) SOS alarm
The terminal worn by the elderly/security and other related personnel has an SOS alarm function button. Once an emergency occurs, you can press the alarm button (in order to avoid the possibility of touching the button and misoperation, set it to long press for 3 seconds), and then the platform will receive To the alarm information, the location of the person can be displayed in time, and the information of the person can be called up at any time, as well as the personal health status of the elderly, and related information such as previous diseases. It provides guidance for the rapid response and emergency help of the medical staff. The staff can Support quickly.
6) SMS reminder
In the archive management of the elderly, the form view of the elderly contacts is established in the database. The system sets up the SMS reminder function according to the collection and processing of information, which can send SMS messages to the children and relatives of the elderly regularly, so that the elderly can understand the various life situations of the elderly . Reflects the active humanistic care of nursing homes, so that the elderly’s families can know more about the nursing homes and the elderly, so that their families can be more at ease. It is true that people can understand their parents and their daily lives.
* For customizable development services
7) Mobile attendance
In the specific area that needs to be on duty in the community, or the routine inspection route that needs to be patrolled in a certain period of time, the area is covered by deploying a certain reader device. Once the security personnel carrying the RFID wrist or device card enters the area Area, the system automatically recognizes and displays it on the electronic map in the background in real time. At the same time, you can also query and play back someone’s walking trajectory in any period of time. At the same time, through the configuration and setting of the background, the corresponding attendance report can be output according to the needs of the enterprise’s internal security management.
8) Report statistics
After the elderly’s information is collected and processed, different reports can be generated according to different factors for statistics. For example, data mining and analysis can be conducted based on the daily activities of the elderly, and the activities of the elderly can be arranged more appropriately, as well as the adjustment of work and rest time. Using a more scientific and obvious way to manage and arrange, the staff can be more convenient and smooth, and provide better and more proactive services for the elderly.
9)Backstage management
In addition to the above system functions, the system can also
Real-time control area target dynamic display function:
1) Query and display the number, distribution and identity of targets in the controlled area at any time;
2) Query the current actual position of one or more controlled targets;
3) Multi-point sharing of information can be realized for multiple departments and leaders to view at different locations at the same time;
Rich map functions:
It has the functions of zooming in, zooming out, moving, ruler distance measurement, field of view control, center movement, soil layer control, map printing, etc.
Forbidden zone alarm function:
For the designated restricted area, if there is unauthorized entry, a real-time alarm will be issued, and the target and identity of the restricted area will be displayed.
Target track query:
You can find the path that a target has gone through in a certain period of time, and draw the line trajectory in the graph.
Abundant control target attendance ability:
It can perform statistics on the goals in and out of the deployment control area, achieve the goal attendance records, and establish various information reports of the goals (such as: time report, attendance monthly report, overtime report, absence report, etc.).
Emergency control:
Once there is an emergency, the host computer can immediately display the target number, information, location and historical situation of the site and other information, which greatly improves the efficiency and effectiveness of the safety management work.
Five, system advantages
Powerful system processing capabilities:
1) Highly automated;
2) Geographic information display and query system based on GIS technology;
3) Complete data analysis capabilities;
Excellent recognition performance:
1) High recognition reliability, 100% front-end recognition rate;
2) Long recognition distance (recognition distance up to 2-100 meters adjustable);
3) Extremely high anti-collision performance (each identifying base station can simultaneously identify hundreds of moving targets at most);
4) High recognition stability (error rate is less than 1/100,000);
5) Fast recognition speed (the fastest recognition speed can reach 200 km/h).
On-site advantages:
1) Environmental adaptability: high anti-interference, no special requirements for interference sources and perimeter environment;
2) Installation convenience: integrated structure design, no need for external antenna;
3) Operational reliability: The internal circuit is highly integrated, and the device failure rate is minimized.
Electrical characteristics:
1) Ultra-low power consumption: nanowatt-level ultra-low power consumption design, the RFID tag can work normally for more than 3 years without changing the battery;
2) Convenience and safety, the label does not need an external power supply, no need to charge, no need to replace the battery;
3) No radiation, no impact on human body and environment, safer and healthier.
System hardware design:
1. Industrial frequency band
The use of 2.4G industrial control frequency band wireless communication does not require the approval of the Radio Regulatory Commission, and does not need to pay spectrum occupancy fees.
2. Ultra-low power consumption
The RFID tag uses a unique nanowatt ultra-low power design to ensure that it can continue to work for about 3 to 5 years with battery support. At the same time, the low-power design of the overall structure not only ensures the effective operation of the equipment, but also reduces the complexity and cost of application implementation.
3. Large network capacity
A regional positioning network can accommodate more than 60,000 RFID identification targets and a large number of access points. The large capacity guarantees the powerful data collection capability of the network. At the same time, the high redundancy of the network ensures that the entire network can still operate normally even when individual nodes stop working.
4. High reliability
The core technology of the APS real-time positioning system currently uses a unique positioning algorithm to realize network self-awakening, self-fault tolerance, and self-healing.
5. Low operating and maintenance costs
All hardware equipment of APS adopts maintenance-free design, and the labor cost required for construction and maintenance is very low. Any authorized RFID tag can be automatically added to the network as long as it is placed within the wireless signal coverage of the network without any installation. Configuration. The high degree of intelligence reduces the manpower and time required for network maintenance to the greatest extent, and the low price of the network node itself makes the maintenance cost of the system extremely low.
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