Parking lot vehicle entry and exit management system based on semi-active RFID technology
chrispeng [ad_1]
1. RFID parking lot application background and significance
1.1 Parking demand analysis
With the progress and development of society, people’s lifestyles are undergoing profound changes. Traffic congestion in the city is one of the phenomena caused by this change. The traffic congestion and even chaos caused by the increase of traffic facilities in the city brings great inconvenience to people’s lives. This inconvenience forces people to seek high-tech and effective means to solve this inconvenience. The intelligent parking lot is a high-tech product that meets the needs of this era. This can not only effectively solve the traffic chaos caused by random parking, but also promote the planning and construction of transportation facilities, and at the same time, reduce the worries of vehicle owners from being stolen as much as possible. In addition, in terms of technology, its high technology matches other existing intelligent systems, has good openness, and is easy to combine with other intelligent systems to form a more powerful integrated system, which is compatible with various integrated methods of advanced management.
Intelligent parking lots are suitable for various public places (communities, enterprises, government agencies, airports, railway stations, hotels, supermarkets, etc.). Difficult parking and parking management problems are common in these places, especially in some high-end communities,
The contradictions between enterprises and government agencies have become increasingly prominent, parking management is full of loopholes, and disputes between car owners and property management parties continue.Semi-activeRFIDParking lots can effectively solve these problems. It enables car owners to have a more convenient and comfortable parking environment, and makes the work of the parking lot management department more complete and relaxed.
1.2 Technology selection
According to the current status of the parking lot application, in terms of RFID technology selection, this solution uses 245GHz plus 125KHZ dual-frequency solution to make a fusion 2.45G and 125KHZ dual-frequency card, 2.45G as a pass card for parking lots to record vehicles Access information, billing information, etc.; 125KHZ is mainly used to determine the status of vehicles entering and exiting the parking lot, and to activate the 2.45G dual-frequency card. The 2.4G technical advantages are analyzed as follows:
• Strong penetrating power • Long communication distance, high card reading rate • Large number of cards to be read • Not restricted by direction • Low power consumption of the whole machine
•Small emission power, low radiation to human body
•In line with the development trend, ISO has released the RTLS international standard for RFID 2.4GHz frequency band
• The development prospect is bright, and the integration with sensor network and short-distance data transmission technology is the direction of 2.4G RFID technology
1.3 Application significance of RFID smart parking lot
(1) Establish a new image of property management
The use of modern high-tech products will surely greatly improve the image and popularity of the company’s property management. Adopting intelligent parking lot management system, no matter from the aspect of product styling, or the advancement and science brought by automatic management, it will establish a good image for property management and make the enterprise a model of scientific management.
(2) Strict and meticulous fee management process
There are big loopholes in the general parking lot management, which can easily lead to the loss of cash. After using the radio frequency intelligent parking lot management system, all vehicle charges are confirmed and calculated by the computer, which eliminates errors and cheating and protects the rights and interests of parking lot investors.
(3) Effectively strengthen the safety management of vehicles
One card for one vehicle, data archiving, to ensure the safety of vehicles parked in the parking lot. When card issuance and card collection are performed manually, it is inevitable that there are omissions because there is no record to check at any time. Lost cars or false reports of lost cars happen from time to time, causing many troubles and economic losses to the parking lot. After adopting the intelligent parking lot management system, consumers of monthly rental cards and stored-value cards have recorded corresponding information in the computer, and the card can be reissued in time if the card is lost. Lost hourly card can also be retrieved at any time and processed in time. When equipped with image comparison equipment, all types of parking cards are archived with license plate numbers, one card is dedicated, and the license plate is not prompted to the computer at any time, and a warning is given.
(4) Solid anti-counterfeiting performance
The RFID system uses a complex encryption algorithm, making it difficult to forge RFID identification cards.
(5) Durable and reliable, the operation process is fully automated
The passive radio frequency identification card used in the RFID smart parking lot system is maintenance-free, long-lived, fully sealed, and free of contact, so it is dust-proof and waterproof, and does not need to be opened manually. The system automatically reads, checks and opens the gate.
2. System design principles and characteristics
2.1 Principles of Scheme Design
﹡Convenient, fast and accurate charging and full display service function; ﹡Safety function of vehicle storage;
﹡Economic and reasonable operating costs;
﹡Advanced and mature technology and equipment to ensure the safe, reliable and stable operation of the system;
﹡Perfect management system to prevent the loss of charges to the maximum extent;
﹡Reasonable layout, improve the service quality of the system, shorten the service time, and increase the parking flow and income on the site.
﹡Practicability, real-time, completeness principle;
﹡Scalability and easy maintenance principle.
2.2 Program features
﹡ Thoroughly solve the problem of adjacent road interference of vehicles, avoid the problems of mis-lifting and misjudgment in the one-in-one-out vehicle hand-free system.
﹡ Thoroughly solve the problem of car following in the long-distance vehicle management system, and avoid the problems of the vehicle in front being released without a card and the following vehicle being released with a card.
﹡ Thoroughly solve the problem of vehicle anti-theft film interference, making the long-distance entry and exit of vehicles more smooth and convenient
* Thoroughly solve the problem of label power consumption. The label can not work normally, and it can work after entering the active area, which can increase the working life of the label, up to about 5 years.
2.3 Solution advantages
﹡Semi-active RFID card has the characteristics of waterproof, anti-magnetic, anti-static, no wear, large amount of information storage, high security density, and one card with multiple functions;
﹡Semi-active RFID technology, completely solve the problem of car following
﹡Semi-active RFID card to realize automatic control, billing, and deduction of vehicle access;
﹡Semi-active RFID read and write distance can be controlled, 3-80 meters away;
﹡The activation distance of the low-frequency activator is adjustable, with a radius of 0-3.5 meters
﹡Semi-active RFID card can be recognized remotely, no contact is required to swipe the card, and the operation is more convenient;
﹡Full Chinese menu-style operation interface, simple and convenient operation;
﹡Perfect financial management function, automatically forming various reports;
﹡Temporary vehicles automatically issue cards, reduce personnel operations, and have a high degree of automation;
﹡Rolling LED Chinese electronic display prompts, making users and managers clear at a glance;
﹡Unique license plate number entry and display system, which greatly improves parking lot anti-theft measures;
﹡Insufficient card storage system automatically prompts;
﹡Full intelligent logic self-locking control system for vehicle entry and exit, which strictly controls the entry and exit behavior of cardholders to meet the requirements of “one card, one vehicle”;
﹡High-quality lane gate with anti-lifting rod, full unloading, photoelectric control, and accurate balance system;
﹡Highly reliable and adaptable parking space detection system;
﹡The ground-sensing anti-smashing device can ensure that the vehicle stays under the brake lever and the brake lever will not fall.
Three, system function introduction
3.1 Billing management function
1) The charging standards are loaded by themselves:
Most of the charging standards can be set through the computer and loaded directly to the control machine, and the charging accuracy can still be 100% guaranteed when the system is offline. For complex charging standards, senior engineers write MCU programs and conduct simulation tests in various situations to effectively safeguard the interests of customers;
2) Automatic billing and charging
Automatically calculate the parking time according to the entrance time and exit time, and automatically calculate the toll according to the parking time and charging standard; the charging standard can be easily defined by the parking lot management software and downloaded to the control machine according to the needs, and the charging time can be accurate By the second, the charge amount is as small as “corner”; except for temporary vehicles that have to manually collect parking fees in cash, other vehicles can automatically collect/deduct parking fees when issuing or reading cards;
3) Billing security control
The system records the incidents of illegal opening of the barriers (such as remote opening, manual opening, etc.), and at the same time, it controls the opportunity to alarm the illegal opening of the barriers, so that the entry and exit of vehicles in any time and under any circumstances is documented and can be checked. Supervision, effectively avoiding the loss of funds due to the negligence of the staff on duty or intentional cheating;
3.2 Card Issuing Management
Multiple options for card reading and card output. There are multiple card reading options (reading with a car or without a car). The temporary card dispenser has a variety of card output options (with a car, a card, a computer, etc.). Users can set according to their needs;
3.3 Barrier control management
1) Peak mode setting: Through simple hardware and software settings, it is very convenient to set the system from normal management mode to peak management mode. At this time, the channel is in a normally open state to facilitate the entry and exit of vehicles under peak conditions;
2) Equipment monitoring and management: control the opening and closing of the barrier, control the card issuing machine; detect the working status of the barrier in real time, detect the working status of the card machine and the number of stored cards in real time, and detect the work of the vehicle detector in real time Status and whether there is a vehicle on the induction coil, and display it in a vivid way
3) The barrier function is complete, safe and anti-smashing: the automatic barrier has functions such as anti-lifting rod, photoelectric control, and accurate balance system; it has multiple control methods such as induction automatic control and manual button control; advanced digital vehicle detection system and Mechanical anti-smashing double anti-smashing system (contact sensitivity <250 g), effectively avoiding vehicles, pedestrians, etc. from being smashed
4) One card, one vehicle, logical interlocking: the vehicle can be set to not repeat the card reading function. After the vehicle reads the card, the card cannot be read again. The subsequent vehicle can only read the card when the vehicle leaves the barrier and closes the passage. This effectively avoids the phenomenon of repeated card reading and removal of temporary cards by fixed car owners; vehicles must first enter the venue to complete the exit operation. One card cannot enter the venue with multiple vehicles, nor can multiple vehicles leave the venue. Follow the logic of one car and one card Interlock;
5) Fast card reading and information recording: The card reading response speed is fast, the reading time is less than 01 seconds, and the card type, card number, entry time, license plate number, vehicle owner identity, vehicle style, barrier location, and vehicle are automatically recorded when reading the card. Location and other information, and display relevant information on the computer screen;
6) The scale of the system can be expanded arbitrarily: the number of workstations with the same type or different functions in the system is not limited; the entrance and exit control machines of each zone in the system can be as many as 128;
3.4 Other functions
1) License plate recognition system
Through the automatic license plate recognition system, the theft of vehicles can be effectively prevented. When the vehicle reads the card or takes the card to enter the parking lot, the system will take a picture of the license plate and save the picture as the vehicle entrance inspection data in the owner’s database in the computer. When the vehicle reads the card and leaves the parking lot, The system will also take pictures of the license plate, and save the picture as the vehicle inspection data in the owner’s database in the computer. At the same time, the vehicle’s entrance will be automatically displayed when the license plate image is compared for accurate comparison to confirm whether the vehicle is normal. Use, thereby enhancing the anti-theft function, and making post-event inspections more accurate and easy to prepare;
2) Information display:
High-brightness LED display, even in outdoor sunlight, the displayed information is still clearly visible; the information display adopts bilingual display in Chinese and English, which is suitable for the increasing number of foreign car owners under the WTO environment; the information content is concise and can be clear to car owners Prompt, without delaying the time for vehicles to enter the venue;
3) Voice prompt:
The sound prompt is convenient and thoughtful; the analog human voice is clear and beautiful; the pluggable digital voice module is convenient for system integration and upgrade; it has a large storage capacity to meet the output of a variety of sound prompt information;
[ad_2]
