based on"Wuxi Children’s Experience Center"personnel positioning system
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1. Introduction to the child positioning management system
This system is mainly used for the realization of children’s positioning and tracking function in venues. The venue is large and open to children. Although parents are accompanied, they often get separated. Through this system, parents can find the area where children are active at any time, and even if they find children, they can get a map of the children’s movements. , which is conducive to the analysis of children’s behavior and provides value-added services for the operation of the venue.
The implementation method adopts the method of wireless positioning. When entering the venue, children and parents are equipped with wristbands that are bound to each other. The receiver in the venue can dynamically obtain the positioning data of the children’s wristbands, and parents can find their children’s positioning through the paired wristbands. data, so as to realize the application of the positioning of children in the venue. The system can generate a child’s walking route map through calculation through the real-time positioning data of the child.
The wireless positioning area is implemented in the public area, and there is no need to deploy in the experience hall because of the management in the experience hall. The wireless positioning bracelet is required to be easy to wear, compact in design, and cannot be detached by children, and the battery power is required to be used for at least 1 year.
2. Scheme design
Dream Ark Children’s Positioning Management System involves computer software, database, electronic circuit, digital communication, wireless identification technology and so on. Therefore, in the design of the scheme, in addition to considering its functions, the stability, reliability, anti-interference ability, fault tolerance and abnormal protection have also been fully considered. The project plan determines to use the existing mature wired network as the main transmission platform, develop corresponding card reading substations, wristband labels and other equipment to connect with the system, and use the card reading substations and special positioning management software to communicate with the main system in a standard way. A dedicated database is used for background data exchange to realize the tracking and positioning management of children. The overall design of the system is mainly reflected in:
Realize the effective identification and monitoring of children’s entry and exit, so that the management system fully reflects “humanization, informationization and high automation”.
System design security, scalability, ease of maintenance and ease of operation.
Easy networking, B/S structure, easy to achieve county, city, province and wider area network monitoring.
3. System principle
The Dream Ark Children’s Positioning Management System is supported by the main computer of the monitoring center, through the data transmission interface and the laid wired network, regularly conducts data inspection and information collection on the installed card reading substations, and the card reading substations The information of the children’s wristbands within the effective identification distance will be automatically collected, and the relevant data will be transmitted to the monitoring room through the transmission network according to the system instructions. After the data information is analyzed and processed, the dynamic distribution of the child’s position is reflected in the main computer interface in real time.
According to the user’s monitoring requirements, card reading substations are installed at the road turning points in the children’s hall, and are connected to each other as a wired network through the data transmission interface, thus forming a complete communication line.
After the children and parents buy tickets, the ticket sales staff of the Children’s Hall distribute the corresponding wristbands to the children and parents, and assist the children to wear the wristbands; the parents and children’s wristbands are matched with each other, and the parents can check the real-time location information of the children on the inquiry machine.
Children entering the experience area must wear a wristband tag with them. When the child passes through the location where the identification system is set, the system will recognize it. The system will read the card number information, and transmit the road section, time and other information of the child through the system transmission network to the place. The monitoring room is used for data management, and at the same time, prompt information can be displayed on the large geographic information screen wall to display the names of the passing children. If the sensed wristband card number is invalid or the wristband is taken out of the children’s hall, the system will automatically alarm, and the monitoring room duty personnel will receive the alarm signal and immediately execute the relevant safety work management procedures.
4. Topological structure
Five, the main hardware of the system
Card reading substation series
Main technical performance
Recognition speed 100 tags/sec (ID number only)
Anti-collision processing 200 tags are read at the same time
Recognition distance up to 80 meters (with SP-TGS series tags, in the air)
Working frequency band 2.4-2.48G
Receive sensitivity -90dBm
Microwave Communication Error Detection CRC16 Cyclic Redundancy Check
Antenna polarization directional/omnidirectional
Standards/Approvals CE; FCC; ISO9001
Power 6～12V DC(MAX 30mA)
Communication interface RS485 TCPIP
Baud rate 2.5k
Working temperature -40℃～+80℃
Storage temperature -60℃～+80℃
Anti-electromagnetic interference 10V/m 0.1～1000MHz AM electromagnetic wave
Reliability MTBF ≥ 70000 hours
Key Features and Benefits
Feature Benefit
The recognition speed of 100 tags/second can identify fast-moving people or objects
Simultaneous reading of 200 tags can identify a large number of target people entering and leaving at the same time
Real-time operating system meets industrial reliability and robustness
The identification distance of up to 80 meters is convenient for long-distance identification
2.45G microwave working frequency band with high data transmission speed, long distance and low power consumption
Kids Wristband Labels
Main technical performance
Standard size to be determined
Recognition distance up to 80 meters
Working frequency band 2.4-2.48G and 13.56M
Expected battery life > 3 years
Power-off storage period of more than 10 years
ID number 64 bit
Working temperature -40℃～+80℃
Storage temperature -60℃～+85℃
Anti-electromagnetic interference 10V/m 0.1～1000MHz AM electromagnetic wave
Protection class IP54
Vibration 10 ~ 2000Hz 15g three axes
The explosion-proof standard conforms to the provisions of GB3836.1-2000 and GB3836.4-2000
Key Features and Benefits
Feature Benefit
Recognition distance of up to 80 meters can automatically identify, track, locate and collect without manual intervention
8K bytes capacity (32K optional) can store thousands of records, no need to clear data or replace frequently
2.45G microwave working frequency band with high data transmission speed, long distance and low power consumption
13.56M high frequency passive chip short-range card reading
The recognition speed of 100/sec can be used to identify high-speed moving objects, below 200Km/h
200 tags are read simultaneously A large number of target items can be read and processed almost simultaneously
More than 3 years of service life can be used for a long time, no need to replace the battery
Six, software graphical interface
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