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With the continuous progress of society and the continuous improvement of people’s living standards, transportation has gradually become an indispensable necessity in daily life. In recent years, the rapid growth of various types of vehicles, especially private cars, has become an important indicator of economic improvement. At the same time, the construction of transportation infrastructure and vehicle safety management are an important topic that every urban construction planner is increasingly facing. The design of this scheme is based on the customization of active RFID products with independent intellectual property rights. Its high reliability, anti-interference, impact resistance, rapid identification, and intelligent discrimination will undoubtedly provide a brand-new solution for all kinds of parking management.
1. Project features
This project combines the active RFID identification technology, wireless communication technology, and data management technology of Simengte’s independent intellectual property rights, and integrates various advanced computer technologies into the actual project.
Install Chaowei SMR1101 distance intelligent adjustment reader in the parking lot. When the vehicle enters, it accepts the information sent by the vehicle and automatically opens or closes the parking lot access system, which not only realizes unattended operation, but also eliminates the need for the owner to stop and open the window to reach out and swipe his card, avoiding the inconvenience caused to users in harsh environments.
SMT1101 is issued to every vehicle related to the parking lot. When the vehicle enters the parking lot, it can automatically communicate with the parking lot reader and enter and exit the parking lot.
2. System function description
The device is divided into two parts:
A part of Simengte’s 2.45G RFID identification device, namely the gate communicator, can be installed above the control vehicle entrance. The other part is the electronic tag. The system equips each parking user with a registered electronic tag, which can be placed anywhere in the front windshield of the vehicle. There is an identification code inside the module, including the license plate number of the vehicle and the owner of the vehicle. Information etc.
When the vehicle reaches 20 meters from the entrance of the community, the vehicle detector detects the presence of the vehicle and activates the gate communicator to detect the identity code (ID) in the electronic tag of the approaching vehicle. The ID is loaded in the form of microwave and transmitted to the communicator , The ID code in the owner’s electronic tag is preset in the information database of the communicator, indicating that the tag belongs to the parking lot, and the brakes are opened quickly and automatically, and the vehicle can pass smoothly without stopping. The response time of the entire system is extremely short. , No more than 1 second.
2.1 System composition
It is composed of an electronic tag attached to the car body, a reader at the entrance and exit of the garage, a camera controlled and activated by the reader, a background management platform and an internal communication network.
Central control room equipment (computer, management software, etc.)
Gate equipment (entrance communicator, railing machine, vehicle detector, etc.)
Export equipment (basically the same as entrance equipment)
Electronic tags (same as the number of registered vehicles)
2.2 Function description
RFID technology provides independent and uninterrupted system services for parking lot management and security, ensuring that only licensed vehicles can pass. A digital management system for parking services and fee collection is realized.
a. It can realize the control of all vehicles in the venue;
b. Realize computer vehicle information management
c. In the case of unattended, the system automatically records the time of entering and exiting the vehicle and the license plate number
System parameter setting
Vehicle management for non-registered users
Always call the police for problem vehicles;
Collect and fully grasp the status of the garage and vehicle seat information through a portable reader;
Speed up the timely search and delivery of vehicles;
Strengthen the control and management of vehicles with delayed rental expenses;
Provide a complete record of every moment of appearance.
3. Performance indicators
3.1 RFID long-distance reader
The reader starts to read the card only when it is pressed to the ground, which avoids the phenomenon of misreading by vehicles or reading the direction and lane label. This is a technological innovation of Simengte Internet of Things that differentiates it from other similar products, and is specifically developed for parking lot RFID applications.
Recognition distance: 0～120 meters adjustable
Working frequency band: 2.4 GHz ~ 2.4835 GHz
Service life: continuous working time more than 6 years
Communication mechanism: time division multiple access and synchronous communication mechanism based on HDLC
Anti-interference: Using channel isolation technology, multiple devices do not interfere with each other
Security: Encrypted calculation and authentication to ensure data security and prevent link eavesdropping and data cracking
Reliability: lightning proof, waterproof and shock proof, meeting the requirements of industrial environment
Interface standard: Four-in-one, RS232 / RS485 / Wiegand 26, 34 and various development software interfaces
3.2 Active electronic tags
Recognition distance: 0 ~ 150 meters
Recognition speed: 200 km/h
Recognition method: omnidirectional recognition
Working frequency band: 2.4 GHz ~ 2.4835 GHz
Service life: low power consumption, high capacity soft battery, continuous working time more than 8 years
Security: Encrypted calculation and authentication to ensure data security and prevent link eavesdropping and data cracking
Reliability: lightning proof, waterproof and shock proof, meeting the requirements of industrial environment
4. Engineering features
The system has very high automatic control functions, strong anti-interference ability, high accuracy rate, small amount of engineering, strong resistance to damage, wide range of resistance to high and low temperatures, and strong ability to resist oil pollution during the implementation and installation process. The whole system is flexible and maneuverable.
For small single-entry management places, a single reading system can be used; for medium-sized management places, it can be realized by connecting multiple exits through data transmission lines; for large-scale management areas, add readings at the entrance and exit of each area by means of zone division. The device can realize the unmanned automatic management of the whole area, and the patrol statistics can be carried out through the handheld reader of the security personnel; for more safety considerations, the two cards of the person and the car are separated (especially suitable for long-term residents), and the identification system is only in the car card , The host card can only take effect after the comparison and identification match, which is a higher level of safety management.
With the continuous progress of society and the continuous improvement of people’s living standards, transportation has gradually become an indispensable necessity in daily life. In recent years, the rapid growth of various types of vehicles, especially private cars, has become an important indicator of economic improvement. At the same time, the construction of transportation infrastructure and vehicle safety management are an important topic that every urban construction planner is increasingly facing. The design of this scheme is based on the customization of active RFID products with independent intellectual property rights. Its high reliability, anti-interference, impact resistance, rapid identification, and intelligent discrimination will undoubtedly provide a brand-new solution for all kinds of parking management.
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