Tangyuan Electronic RFID School Communication, Home-School Communication, Safe Campus Security Service Management System
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1. System significance
1.1 For children
Fully closed management is implemented during school hours, and strangers and all unrelated persons are strictly prohibited from entering the campus with the help of the campus security system to ensure the safety of children at school.
1.2 For parents
Obtain timely information about the children’s school arrival (school) and leave school (school) time, and understand the safety of their children on their way to school; timely receive school related notices (parent meetings, education assistance information requested by parents, holiday notices, etc.); timely understand students The current day or stage of the school learning situation (requires the school to provide corresponding services).
1.3 For schools and kindergartens
Improve the level of safety precautions and adopt centralized attendance management to facilitate the understanding of students’ arrival at school from school to class, detect students’ absences in time, avoid liability disputes caused by the school and their parents, and provide schools with solutions to student accidents outside school Legal basis; improve the management level, effectively distinguish the situation of entering and leaving the school for the residents and day students; can provide parents with auxiliary education information services, which can be divided from the opened services; education can be better cooperated by parents, and there is Conducive to improving the quality of education; schools can use this system as an attendance system for school teachers and students to automatically generate attendance reports every month without the need to install an attendance machine.
4) For the education authority
Real-time supervision of student access conditions in schools within its jurisdiction, to facilitate timely detection of problems, and to evaluate the school’s student attendance management level; a real-time communication system connected to all parents has been obtained. In case of emergencies such as SARS or typhoon, the emergency situation can be notified to parents in the city as soon as possible, which is fast, accurate, and has a high notification rate to ensure the safety of students.
2. System architecture and program description
School News Communication Home-School Communication-Safe Campus Security Service Management System is based on the recent campus security incidents by Shanghai Tangyuan Electronic Technology Co., Ltd., and uses the most advanced radio frequency identification technology, sensor technology, monitoring technology, and communication technology in the world today. , A security system developed based on RTLS real-time positioning technology. The system has:
1) Really guarantee the safety of students at school;
2) Convenient, fast and accurate school management;
3) Build a bridge for communication between schools and parents;
4) Economic and reasonable operating costs;
2.1 System architecture
Figure 1 System network architecture
Figure 2 System diagram
2.2 Program description
Figure 3 Installation position
Each student wears a semi-active RFID card, an activator is placed inside and outside the school gate, and an active RFID card is installed at the gateReader. When students enter the school from the door to the door, they are first activated by the activator outside the door, and then activated by the activator inside the door. Leaving school is the opposite of entering school. When the reader receives the card information, it will be sent to the backend of the server. The student information is judged according to the card number, and the admission to the school is judged according to the order of the activator.
Three, hardware equipment introduction
3.1 Semi-active RFID long-distance reader
TY-R501A type directional reader
Product Specifications
Performance parameter
Parameter name parameter index remarks
Recognition distance 0～150m radius
Recognition speed 200 km/h
Recognition ability to recognize more than 500 labels at the same time
Recognition angle orientation (vertical 30° horizontal 30°0)
Polarization method circular polarization (more suitable for applications with variable label orientation)
Gain 12dBi, 14dBi, 16dBi, 32 levels adjustable for receiving, 4 levels adjustable for transmitting
Working frequency band 2.4 GHz ~ 2.4835 GHz
Standard working power is milliwatt
The communication mechanism is based on HDLC time division multiple access and synchronous communication mechanism
Anti-interference channel isolation technology, multiple devices do not interfere with each other
Security encryption calculation and security authentication to prevent link detection
Interface standard RS232, RS485, Wiegand26, RJ45, TTL, WiFi, etc. optional
Expansion I/O switch signal input and output 2 channels each (optional)
Power standard DC 12V
Physical parameter
Parameter name parameter index remarks
Packaging features ABS engineering plastic on the front, aluminum alloy cavity on the back
Reliable, waterproof and shockproof, meet the requirements of industrial environment
Size 268×268×80mm
Weight 2.1Kg
Installation method U-shaped, L-shaped special metal installation kit
Environmental parameters
Parameter name parameter index remarks
Working temperature -15℃ to 50℃
Storage temperature -20℃ to 60℃
Storage humidity 5% to 95% non-condensing
TY-R301A type fixed omnidirectional reader
Product Specifications
Performance parameter
Parameter name parameter index remarks
Recognition distance 0～100m radius
Recognition speed 200 km/h
Recognition ability to recognize more than 500 labels at the same time
Recognition angle omnidirectional
Polarization method: vertical polarization or dual polarization
Gain 5dBi, 9dBi, 32 levels adjustable for receiving, 4 levels adjustable for transmitting
Working frequency band 2.4 GHz ~ 2.4835 GHz
Standard working power is milliwatt
The communication mechanism is based on HDLC time division multiple access and synchronous communication mechanism
Anti-interference channel isolation technology, multiple devices do not interfere with each other
Security encryption calculation and security authentication to prevent link detection
Interface standard RS232, RS485, Wiegand26, RJ45, TTL, WiFi, etc. optional
Expansion I/O switch signal input and output 2 channels each (optional)
Power standard DC 12V
Physical parameter
Parameter name parameter index remarks
Packaging characteristics Aluminum alloy shell package
Reliable, waterproof and shockproof, meet the requirements of industrial environment
Size 195*165*77mm (without antenna)
Weight 1050g
Installation method U-shaped, L-shaped special metal installation kit
Environmental parameters
Parameter name parameter index remarks
Working temperature -15℃ to 50℃
Storage temperature -20℃ to 60℃
Storage humidity 5% to 95% non-condensing
TY-R401A Desktop Card Issuer
Product Specifications
Performance parameter
Parameter name parameter index remarks
Recognition distance 0～50cm
Recognition ability to recognize single or multiple labels at the same time
The recognition angle is concentrated in the area directly above
Working frequency band 2.4 GHz ~ 2.4835 GHz
Standard working power is milliwatt
The communication mechanism is based on HDLC time division multiple access and synchronous communication mechanism
Anti-interference channel isolation technology, multiple devices do not interfere with each other
Security encryption calculation and security certification, anti-link detection
Interface standard RS232, RS485, RJ45 optional
Power standard DC 12V
Physical parameter
Parameter name parameter index remarks
Packaging characteristics Aluminum alloy shell packaging, front ABS engineering plastics
Reliable lightning protection and impact protection, meeting the requirements of industrial environment
Size 158×99×65 mm
Weight 280g
Environmental parameters
Parameter name parameter index remarks
Working temperature -15℃ to 50℃
Storage temperature -20℃ to 60℃
Storage humidity 5% to 95% non-condensing
3.2 Semi-active RFID electronic tags
TY-T703A type tri-band wrist electronic tag
Product Specifications
Performance parameter
Parameter name parameter index remarks
Recognition distance is adjustable from 0 to 80 meters
Recognition speed 200 km/h
Recognition ability with 200 frames/sec anti-collision performance
Recognition method omnidirectional recognition
Working frequency 2.45GHz, active 125KHz, 13.56MHZ
Communication rate 250K, 1M, 2M b/s
The communication mechanism is based on HDLC time division multiple access and synchronous communication mechanism
Anti-interference channel isolation technology, multiple devices do not interfere with each other
Security encryption calculation and security authentication to prevent link detection
Anti-dismantling functionAnti-dismantling alarm function (optional)
The average working power is microwatt-level
Battery configuration button battery, capacity 246mAh
Service life is about 1 year, low voltage alarm
When the voltage detection voltage is lower than the preset value, it will be wirelessly prompted (optional)
Physical parameter
Parameter name parameter index remarks
Packaging characteristics: ABS+PC material, resistant to high-strength drop and vibration
Reliability rainproof (not soak-proof)
Exquisite appearance, watch type, OEM customized service can be provided
Size 36×36×9mm (strap 240*28mm, wearable length 160-220mm)
Weight 48g
Installation method wrist strap
Environmental parameters
Parameter name parameter index remarks
Working temperature -15℃ to 50℃
Storage temperature -20℃ to 60℃
Storage humidity 5% to 95% non-condensing
TY-T602A dual-frequency card type electronic label
Product Specifications
Performance parameter
Parameter name parameter index remarks
Recognition distance is adjustable from 0 to 80 meters (usually dormant, signal will be sent after being triggered by low-frequency trigger)
Recognition speed 200 km/h
Recognition ability with 200 frames/sec anti-collision performance
Recognition method omnidirectional recognition
Fixed gain 0～3 level can be selected on demand
Working frequency 2.45GHz, 125KHz
Communication rate 250K, 1M, 2M b/s
The communication mechanism is based on HDLC time division multiple access and synchronous communication mechanism
Anti-interference channel isolation technology, multiple devices do not interfere with each other
Security encryption calculation and security authentication to prevent link detection
Read and write function 176B or 1KB storage space (optional)
Anti-dismantling functionAnti-dismantling alarm function (optional)
The average working power is microwatt-level
Battery configuration soft pack lithium manganese battery, capacity 750mAh
Service life is about 5 years, low voltage alarm
When the voltage detection voltage is lower than the preset value, it will wirelessly prompt (optional)
Physical parameter
Parameter name parameter index remarks
Packaging characteristics: ABS+PC material, resistant to high-strength drop and vibration
Reliable, waterproof and shockproof, meet the requirements of industrial environment
Square card shape, OEM customized service can be provided
Size 91×59×6.5 mm
Weight 26g
Installation method double-sided adhesive paste or hanging buckle
Environmental parameters
Parameter name parameter index remarks
Working temperature -15℃ to 50℃
Storage temperature -20℃ to 60℃
Storage humidity 5% to 95% non-condensing
3.3 Semi-active RFID low-frequency activator
TY-A201A type low frequency exciter
Product Specifications
Performance parameter
Parameter name parameter index remarks
The activation range is equipped with 2 groups of rod antennas, each with a radius of 0 to 5 meters; the maximum identification range can be expanded to 1000m2
The activation speed is up to 400 km/h and can be activated when passing
Activate ability to activate more than 500 labels at the same time
Activation angle omnidirectional
Center frequency 125KHz
Anti-interference ability adopts time division multiple access technology, multiple devices do not interfere with each other
Penetration ability, low frequency wavelength of 2500m, can completely pass through the human body and walls
Standard interface TTL, RS485 interface
Power standard DC 12V
Physical parameter
Parameter name parameter index remarks
Packaging characteristics Aluminum alloy shell package
Reliable, waterproof and shockproof, meet the requirements of industrial environment
Size 195*165*77mm (without antenna)
Weight 990g
Installation methods such as ceiling, wall or underground installation
Environmental parameters
Parameter name parameter index remarks
Working temperature -15℃ to 50℃
Storage temperature -20℃ to 60℃
Storage humidity 5% to 95% non-condensing
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