Application case of long-distance microwave card in intelligent parking lot management system
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RFID technology is a very versatile science and technology, and its application fields are very wide, including animal identification, container identification, tool identification, electronic lock anti-theft, electronic ticket, electronic ID card, electronic lock anti-theft (electronic remote control door lock controller) , Residential property management, building access control system, railway vehicle automatic identification, container identification, highway vehicle identification and automatic toll collection system, mobile vehicle identification, electronic lock and anti-theft (electronic remote control door lock controller), medical research, etc. This article mainly introduces the application of long-distance microwave card in the intelligent parking lot management system.
1 Overview
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 find 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 regular construction of transportation facilities, and at the same time reduce as much as possible the worries of car owners about losing and being stolen. 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.
Parking management is aimed at the management needs of building a safe and civilized community or smart building. It aims at the intelligent management of parking lots in the property community or smart building, and takes fixed or temporary vehicles in and out of the community or smart building as the service object to achieve It is convenient, fast and safe for parking users to enter and exit, and the property company manages scientifically and efficiently, and serves the purpose of high-quality and civilized service. It will play an important role in improving the management level and comprehensive service level of the property management company.
The parking lot adopts ancient manual management methods, which cannot meet the needs of new-type parking lot management. Therefore, a non-contact induction IC card parking lot management system at the world’s advanced level was born. In order to better cooperate with the security and management of the parking lot, it is convenient for the users to enter and exit the parking lot freely without stopping or driving the window. A long-distance microwave card parking lot management system has been specially developed.
This system is specially designed for parking lots with long-term fixed vehicles. It realizes the automatic identification of long-term fixed vehicles and the charging management of temporary vehicles. A new type of parking lot security management system that integrates reading and writing technology, automatic control technology and computer technology.
The long-distance microwave card parking lot management system is an efficient, fast, fair, accurate, scientific and economical parking lot management method, which is a combination of dynamic and static management of vehicles in the parking lot. The system uses microwave cards and non-contact IC cards as information carriers, records vehicle entry and exit information through card recognition, uses computer management and combines industrial automation control technology to control mechatronics peripheral equipment, thereby controlling various vehicles entering and exiting the parking lot. The parking lot is managed safely and effectively, including anti-theft, monitoring, linkage, and charging.
From the user’s point of view, its service is efficient and convenient, its fees are transparent, and accurate; from the manager’s point of view, its easy operation and maintenance, high degree of automation, and greatly reduce the manager’s labor intensity; from the investor’s point of view, Completely eliminate mistakes and any form of cheating, prevent the loss of parking fees, so that investors’ returns have a reliable guarantee.
2. Composition and structure of long-distance microwave card parking lot management system
(1) System composition and basic functions
① Long-distance microwave card reader: read the card number information of the on-board microwave card of a fixed vehicle
② Import machine, export machine
③ Short-distance IC card reader: read the card number, time, amount and other information of the temporary vehicle IC card
④ Controller: Receive IC card information from the card reader, store permissions and various information records, make judgments, control output signals such as opening and display, and complete the information exchange between the controller and the computer (including uploading related Information to the computer and download data from the computer to the controller)
⑤ Information display screen: display time, charge amount, balance in card, card validity period, full parking space and related information of parking lot
⑥ Intercom system: Install an intercom host in the management center, install intercom extensions at each entrance and exit to ensure the communication between each entrance and the management center
⑦ Voice prompt system: Prompt the card reading operation, charging, etc. of vehicles entering and leaving the field, if normal operation can prompt please read card, charging amount, validity period and other related information, and give corresponding prompts for misoperation or illegal operation
⑧ Automatic card issuing machine: For the issuance of temporary cards, IC cards used by temporary vehicles will be automatically ejected
⑨ Electric barrier: used to block unauthorized vehicles and allow authorized vehicles to enter and exit freely
Camera: A high-resolution camera is used to automatically capture the appearance, color, license plate number and other image information of the vehicle when the vehicle enters the venue. When leaving the venue, the vehicle image captured at the exit is compared with the entrance image. When the information is consistent, the vehicle will be released. Ensure vehicle safety.
Management computer: coordinated management of the system and report output.
3. Work process of long-distance microwave card parking lot system
(1) Entry workflow
Monthly card, stored value card (microwave card)
① The remote card reader automatically reads monthly cards or stored-value cards, and the management computer checks card numbers, license plates and other related information
② Manage the computer to automatically record admission information (card number, time, image, etc.)
③ When the card is valid, the barrier will automatically lift the bar, and the LED display will display “Welcome to the venue” and the corresponding voice prompt. After the vehicle enters the venue, the barrier will automatically close
④ When the car is invalid, it will automatically prompt the reason, such as “card expired” or “insufficient balance”, etc., communicate with the management center through intercom, and the parking lot administrator will use the management card or temporary card to control the temporary admission card
⑤ The driver presses the card withdrawal button on the entrance machine, takes the card and reads the card
⑥ The administrator enters the license plate number through the computer keyboard and corresponds to the card number
⑦ Manage the computer to automatically record admission information (card number, time, image, etc.)
⑧ The barrier automatically lifts the bar, the LED displays “Welcome to the site” and the corresponding voice prompt, after the vehicle enters the site, the barrier automatically closes the management card and privilege card
Administrators can use management cards and privilege cards in one of the following situations
① The monthly card is expired and the balance is insufficient
② Special vehicles such as public security and military
(2) Export workflow
Monthly card, stored value card (microwave card)
① The remote card reader automatically reads monthly cards or stored value cards, automatically charges and deducts fees, and displays on the information display screen and corresponding voice prompts
② The management computer automatically provides the license plate, exit and entrance images for the administrator to verify, to ensure the safety of the vehicle
③ When the vehicle is active, the barrier will automatically lift the lever, and the LED display will display “All the way down” and the corresponding voice prompt. After the vehicle leaves the field, the barrier will automatically close
④ When the card is invalid, the reason will be automatically prompted, and the administrator will use the management card or privileged card to control the temporary card
⑤ The driver will hand over the temporary card to the administrator to read the card, and the bill will be automatically charged, and the “toll amount” and corresponding voice prompts will be displayed on the LED display
⑥ The management computer automatically provides exit and entrance images for the administrator to verify
⑦ After the administrator confirms the safety of the vehicle, the charge will be charged, and the gate will be opened through the computer or management card. The LED will display “A good way to go”. After the vehicle leaves the field, the barrier will be automatically closed.
4. Features of long-distance microwave card parking lot management system
(1) Different IC cards are used for internal and external vehicles
Different card reading devices and IC cards are used for different vehicles inside and outside to provide different card reading distances.
① Internal fixed vehicles: Internal fixed vehicles are vehicles driven by fixed personnel in the unit. Fixed cards can be issued, pre-paid or free long-term cards. Using long-distance microwave identification technology, the induction distance of the microwave card can reach 3-10 meters, realize automatic identification of valid card vehicles without stopping, and record the relevant information of in and out at the same time.
② External temporary vehicle: The external temporary vehicle is a vehicle driven by a foreign worker, and the system will issue a temporary card through an automatic card dispenser. Using a short-range readable and writable IC card, the sensing distance is generally less than 10cm, recording the time of entry and exit of foreign vehicles, image information, etc., and automatically billing according to the parking time.
(2) Adopt long-distance recognition technology
The long-distance recognition technology uses microwave technology with a frequency of 2.54Ghz, and the sensing distance can reach 3-10 meters. It can penetrate the metal explosion-proof film of the car without opening the window. It can effectively place the inside of the front windshield of the vehicle, which can realize non-stop Automatic identification, specific features:
① The card reading device has communication interfaces such as RS-232, RS-422, RS-485, IS02, Wiegand, etc., which can be connected to various control devices
② The communication data transfer rate is 30000 bauds (between the card reader and the card)
③ The error rate of induction recognition is less than one in ten million
④ The sensing angle is 90 degrees from the antenna center line
⑤ The proximity card reader can be installed with more than 31 proximity card readers in the same sensing area, and they can be controlled side by side without mutual interference.
⑥ At the same time, in the same sensing area, within less than one second, more than 10 IC proximity cards can be sensed and identified at the same time
⑦ Low transmit power 6-8 meters transmit power ≤200MV; 8-10 meters transmit power=350MV
⑧ When the card is read by induction, whether the card is placed on the front or back, horizontal or vertical, in the front of the pocket or in the handbag, within the effective range of the card reader, it can be sensed
⑨ Memory capacity used by the card: 180bite or more, it can be rewritten unlimited times to read the content data of the IC sensor card
⑩ At any time, the time for the card and the card reader to read the transmitted data normally: 75-130 milliseconds, and the time to quickly read the transmitted data in an instant: 3-8 milliseconds
It has the function of preventing theft and copying security
Normal use life of the card: 6 to more than 8 years
The size of the card is small, the size is 85.6×54×3.5mm; light weight: less than 1.5 grams
It has the functions of moisture-proof and waterproof, waterproof protection grade: above IP54, can withstand exposure, working temperature range: -20℃ to 70℃.
(3) Improve management level and image: The use of automatic control management system will bring great improvements to the management level of parking lots in terms of product styling, convenience and practicality brought by automatic control and scientific management. Improve, and establish a good image.
(4) Safer management: one card for one vehicle, data archiving, to ensure the safety of vehicles parked in the parking lot. Manual recording is inevitable when 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 a lot of trouble and economic loss to the parking lot. After adopting the automatic control management system, consumers of both fixed monthly rent card and temporary card have recorded corresponding information in the computer, and the card can be reissued in time if the card is lost. Equipped with image comparison equipment, all types of parking cards are archived with license plate numbers and model images for comparison and query.
(5) The system is more reliable: it can be used offline in any situation, and it can automatically record in and out traffic information. When the network is connected, the data information is automatically uploaded to the management computer.
(6) More stringent charges: For manual cash charging methods, on the one hand, the labor intensity is high and the efficiency is low, and the other main drawback is that it causes great financial loopholes and cash losses. Using the IC card toll collection system, the vehicle charges are confirmed and counted by the computer, which eliminates mistakes and cheating, and protects the interests of parking lot managers.
(7) Convenient expansion: The open design of software and hardware makes the management mode and use mode easy to meet the special needs of different occasions, and it can be set and changed according to its own requirements. Such as the classification of vehicle types, charging methods, handling of various licensed vehicles, etc.; the system software can be easily changed according to specific requirements, and can be linked to building automation, fire protection, anti-theft alarm and other systems.
(8) Perfect back-end management: The powerful back-end management system can fully track the usage of each card issued and the entry and exit of each vehicle. Can automatically generate statistics and other related reports.
5. Application prospects
The application range of the long-distance microwave card parking lot management system is very wide, suitable for all kinds of occasions with more fixed vehicles.
(1) Provincial and municipal government office buildings
(2) Public Security Bureau, Procuratorate, Court Building
(3) Army, prison, detention center
(4) TV stations, banks, customs, hospitals
(5) Post and telecommunications building
(6) Group companies, factories, schools
(7) High-end residential district
In addition to the wide application of long-distance microwave card technology in parking lots, it can also be used for highway automatic toll collection, bus departure, arrival and station inspection, railway carriage marshalling, logistics, etc.
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