CN111402477A - Parking lot management system and method based on RFID vehicle positioning - Google Patents
Parking lot management system and method based on RFID vehicle positioning Download PDFInfo
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- G—PHYSICS
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- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
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- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
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Abstract
A parking lot management system and method based on RFID vehicle positioning comprises an entrance and exit management system, a barrier gate machine and a UHF passive RFID reader-writer, wherein the barrier gate machine and the UHF passive RFID reader-writer are connected with the entrance and exit management system; the UHF passive RFID reader-writer reads the UHF passive RFID label through the antenna, obtains the identity and the position of the vehicle, and controls the barrier gate machine compared with the stored data of the entrance and exit management system to realize vehicle clearance or forbid entrance and exit. The system can work in various severe environments by communicating through radio frequency signals, a special encryption chip is used for protection in the communication process, and a disassembly-preventing and anti-counterfeiting mechanism of the UHF passive RFID tag ensures the accuracy and the safety of vehicle information; the vehicle positioning is realized through a unique algorithm, the positioning precision is improved, the influence of the type and the brand of the vehicle is avoided, and the vehicle positioning system has higher reliability and low cost and is convenient to popularize.
Description
Technical Field
The invention relates to the technical field of radio frequency identification, in particular to a parking lot management system and method based on RFID vehicle positioning.
Background
Along with economic development in recent years in China, the living standard of people is improved day by day, the social conservation quantity of motor vehicles is increased day by day, the scale of a parking lot is gradually enlarged, and meanwhile, a plurality of problems are generated in the using process of the parking lot; especially in some high-grade communities, enterprise parks and government agencies, the parking management problem is increasingly prominent, and the vehicle owner and the property manager have constant disputes; the intelligent parking lot generally adopts a video identification scheme, a camera is used for capturing and identifying vehicles entering and leaving, the identification success rate of the camera is gradually improved in recent years, but a high error rate still exists in environments such as night, severe weather and the like, in addition, the video identification of special vehicles such as stained license plates, fake license plates and the like is difficult to accurately identify, and a series of problems such as poor vehicle owner experience, careless vehicle park management and the like can be caused; the position of a vehicle is usually identified by using a phased array antenna technology and a RSSI (received signal strength indicator) -based vehicle positioning technology, but the system complexity and the cost of the phased array antenna technology are higher, so that the phased array antenna technology and the RSSI-based vehicle positioning technology are not beneficial to popularization, and the RSSI-based vehicle positioning technology is greatly influenced by the type and the brand of the vehicle in the positioning precision; therefore, it is necessary to develop a system that can accurately identify vehicle information and vehicle location under various severe environments, has high reliability, and is low-cost and convenient for large-scale production.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a parking lot management system and method based on RFID vehicle positioning.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a parking lot management system based on RFID vehicle positioning comprises an entrance and exit management system, and a barrier gate machine and a UHF passive RFID reader-writer which are connected with the entrance and exit management system;
the UHF passive RFID reader-writer reads the UHF passive RFID label through the antenna, obtains the identity and the position of the vehicle, and controls the barrier gate machine in comparison with the data stored in the entrance management system, so that the vehicle is released or is forbidden to enter and exit.
Preferably, the UHF passive RFID tag is attached to a front windshield of a vehicle.
Preferably, the memory of the UHF passive RFID tag stores data such as a license plate number, a vehicle type, vehicle owner information and the like, and the identity of the vehicle can be uniquely determined.
Preferably, the UHF passive RFID reader includes a digital baseband signal processing module inside; the digital baseband signal processing module extracts the phase of the UHF passive RFID tag uplink signal, and obtains the distance and the direction from the UHF passive RFID tag to the UHF passive RFID antenna through phase processing and positioning algorithms, so that the vehicle closest to the gateway can be accurately identified.
Preferably, the memory of the entrance and exit management system stores vehicle information, the passing authority of the vehicle entering and exiting the parking lot is confirmed by comparing the black-and-white list information of the vehicle, the payment type and payment amount of the vehicle are confirmed by acquiring the vehicle registration information, and the vehicle is released through the gateway after the vehicle owner pays.
A parking lot management system method based on RFID vehicle positioning is characterized in that a UHF passive RFID tag is attached to a windshield in front of a vehicle, and a UHF passive RFID reader-writer scans and reads the UHF passive RFID tag through an antenna.
Preferably, the UHF passive RFID reader only reads one UHF passive RFID tag, calculates a vehicle position through a digital baseband signal processing module, and reports the UHF passive RFID tag data to the entrance management system.
Preferably, the UHF passive RFID reader-writer reads two or more UHF passive RFID tags which are all in the same lane; the digital baseband signal processing module of the UHF passive RFID reader-writer can identify each UHF passive RFID tag, calculate the position of each UHF passive RFID tag and report the data of the UHF passive RFID tags to the entrance management system.
Preferably, the UHF passive RFID reader-writer reads two or more UHF passive RFID labels which are distributed on a plurality of lanes; and the UHF passive RFID readers of the lanes can read the UHF passive RFID labels of the vehicles in the overlapped area and report the UHF passive RFID labels to the entrance management system.
Preferably, after receiving the UHF passive RFID tag data reported by the UHF passive RFID reader, the gateway management system finally screens information of the leading vehicle in each lane, obtains information such as passing authority and payment of the vehicle through local database comparison or cloud database query, and controls a gateway to realize vehicle release or prohibition after the vehicle owner successfully pays the fee.
The invention has the advantages and positive effects that:
1. according to the invention, the UHF passive RFID reader-writer is communicated with the UHF passive RFID label through the radio frequency signal, the UHF passive RFID reader-writer can work in various severe environments without being influenced by any weather environment and illumination environment, and the reading success rate can reach more than 99.9%; a special encryption chip is used for protection in the communication process, and an anti-dismounting and anti-counterfeiting mechanism of the UHF passive RFID tag is adopted, so that the accuracy and the safety of vehicle information are ensured; other equipment such as a camera and a ground induction coil is not needed, and cost and construction complexity are effectively reduced.
2. The invention realizes a vehicle positioning technology based on phase, realizes vehicle positioning through a unique algorithm on the basis of a universal UHF passive RFID reader-writer and a UHF passive RFID antenna, can achieve +/-0.5 meter positioning accuracy for vehicles running at low speed or standing, is not influenced by vehicle types and brands, has higher reliability and low cost, and is convenient for large-scale popularization.
Drawings
FIG. 1 is a connection block diagram of the present invention;
fig. 2 is a schematic view of a typical parking lot doorway deployment.
In the figure: 1. a UHF passive RFID reader-writer; 2. a UHF passive RFID tag; 3. a barrier gate; 4. an entrance and exit management system.
Detailed Description
The embodiments of the invention will be described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, a parking lot management system based on RFID vehicle positioning includes an entrance management system 4, and a gateway 3 and a UHF passive RFID reader 1 connected to the entrance management system 4; the UHF passive RFID tag 2 is attached to a front windshield of a vehicle, data such as a license plate number, a vehicle type and vehicle owner information are stored in a memory of the UHF passive RFID tag 2, and the identity of the vehicle can be uniquely determined; the UHF passive RFID reader-writer 1 internally comprises a digital baseband signal processing module; the digital baseband signal processing module extracts the phase of the UHF passive RFID tag 2 uplink signal, and obtains the distance and the direction from the UHF passive RFID tag 2 to the UHF passive RFID antenna through a phase processing and positioning algorithm, so that the vehicle closest to the gateway 3 can be accurately identified;
the UHF passive RFID reader-writer 1 reads the UHF passive RFID tag 2 through an antenna to obtain the identity and the position of a vehicle, a memory of the entrance and exit management system 4 stores vehicle information, the UHF passive RFID reader-writer 1 confirms the passing authority of an entrance vehicle by comparing the black-and-white list information of the vehicle, confirms the payment type and payment amount of the vehicle by obtaining vehicle registration information, and the vehicle is released through the gateway 3 after the vehicle owner pays.
As shown in fig. 2, a typical parking lot gateway deployment is provided with a plurality of lanes, and the lanes are respectively provided with a UHF passive RFID reader 1 and a matching antenna, and a gateway 3, and the lanes share a set of gateway management system 4.
In specific implementation, the UHF passive RFID tag 2 is attached to a front windshield of a vehicle, when the vehicle attached with the UHF passive RFID tag 2 enters/exits the parking lot, the UHF passive RFID reader 1 reads the UHF passive RFID tag 2 of the vehicle through an antenna, and if a plurality of UHF passive RFID tags 2 are read, judgment needs to be performed, which is divided into the following cases:
1) the UHF passive RFID reader-writer 1 only reads one UHF passive RFID label 2, calculates the position of a vehicle through a digital baseband signal processing module, and reports the data of the UHF passive RFID label 2 to the entrance management system 4;
2) the UHF passive RFID reader-writer 1 reads two or more UHF passive RFID labels 2 which are all on the same lane; the digital baseband signal processing module of the UHF passive RFID reader 1 recognizes each UHF passive RFID tag 2, calculates the position of the UHF passive RFID tag, and reports the data of the UHF passive RFID tag 2 to the entrance management system 4;
3) the UHF passive RFID reader-writer 1 reads two or more UHF passive RFID labels 2 which are distributed on a plurality of lanes; the UHF passive RFID readers 1 of the lanes can read the UHF passive RFID tags 2 of the vehicles in the overlapped area and report the UHF passive RFID tags to the entrance management system 4;
the gateway management system 4 finally screens information of head-ranked vehicles of each lane after receiving the data of the UHF passive RFID tag 2 reported by the UHF passive RFID reader-writer 1, acquires information such as passing authority, payment and the like of the vehicles through local database comparison or cloud database query, and controls the gateway 3 to realize vehicle release or prohibition after the vehicle owners pay successfully;
when the UHF passive RFID tag is applied to internal parking lots such as enterprise parks and government offices, internal vehicles are pasted with the UHF passive RFID tag 2 and have priority right of passage, external vehicles cannot enter the UHF passive RFID tag, and the possibility of entering the UHF passive RFID tag through fake registration plates is avoided; meanwhile, the rapid passing of the vehicles inside can improve the passing efficiency in the peak period, and especially can keep high accuracy at night and in severe environment.
According to the invention, the UHF passive RFID reader-writer 1 and the UHF passive RFID tag 2 are communicated through the radio frequency signal, the UHF passive RFID reader-writer can work in various severe environments without being influenced by any weather environment and illumination environment, and the reading success rate can reach more than 99.9%; a special encryption chip is used for protection in the communication process, and an anti-dismounting and anti-counterfeiting mechanism of the UHF passive RFID label 2 is adopted, so that the accuracy and the safety of vehicle information are ensured; the method has the advantages that the participation of other devices such as a camera and a ground induction coil is not needed, the cost and the construction complexity are effectively reduced, the vehicle positioning technology based on the phase is realized, the vehicle positioning is realized through a unique algorithm on the basis of the universal UHF passive RFID reader-writer 1 and the UHF passive RFID antenna, the positioning precision of +/-0.5 meter can be achieved for the vehicle running at low speed or standing, the influence of the type and the brand of the vehicle is avoided, the reliability is high, the cost is low, and the large-scale popularization is facilitated.
It should be emphasized that the examples described herein are illustrative and not restrictive, and thus the invention is not to be limited to the examples described herein, but rather to other embodiments that can be derived from the teachings of the invention by those skilled in the art.
Claims (10)
1. The utility model provides a parking area management system based on RFID vehicle location which characterized in that: the gateway comprises an entrance management system (4), a gateway (3) and a UHF passive RFID reader-writer (1), wherein the gateway is connected with the entrance management system (4);
the UHF passive RFID reader-writer (1) reads the UHF passive RFID label (2) through an antenna, obtains the identity and the position of the vehicle, and controls the gateway (3) compared with the data stored in the entrance management system (4) to realize the passing or no entrance of the vehicle.
2. The RFID vehicle location based parking lot management system of claim 1, wherein: the UHF passive RFID tag (2) is attached to the front windshield of the vehicle.
3. The RFID vehicle location based parking lot management system of claim 1, wherein: data such as license plate numbers, vehicle types, vehicle owner information and the like are stored in a memory of the UHF passive RFID tag (2), and the identity of the vehicle can be uniquely determined.
4. The RFID vehicle location based parking lot management system of claim 1, wherein: the UHF passive RFID reader-writer (1) internally comprises a digital baseband signal processing module; the digital baseband signal processing module extracts the phase of the uplink signal of the UHF passive RFID tag (2), and obtains the distance and the direction from the UHF passive RFID tag (2) to the UHF passive RFID antenna through a phase processing and positioning algorithm, so that the vehicle closest to the gateway (3) can be accurately identified.
5. The RFID vehicle location based parking lot management system of claim 1, wherein: the memory of the entrance and exit management system (4) stores vehicle information, the passing authority of vehicles entering and exiting a parking lot is confirmed by comparing black and white list information of the vehicles, the payment type and payment amount of the vehicles are confirmed by acquiring vehicle registration information, and the vehicles are released through the gateway (3) after the vehicle owners pay.
6. A method of a parking lot management system based on RFID vehicle positioning is characterized in that: the UHF passive RFID tag (2) is attached to the front windshield of the vehicle, and the UHF passive RFID reader-writer (1) scans and reads the UHF passive RFID tag (2) through the antenna.
7. The method of claim 6, wherein the method comprises the steps of: the UHF passive RFID reader-writer (1) only reads one UHF passive RFID label (2), the vehicle position is calculated through a digital baseband signal processing module, and data of the UHF passive RFID label (2) are reported to the entrance management system (4).
8. The method of claim 7, wherein the method comprises the steps of: the UHF passive RFID reader-writer (1) reads two or more UHF passive RFID labels (2) which are all on the same lane; the digital baseband signal processing module of the UHF passive RFID reader-writer (1) can identify each UHF passive RFID tag (2), calculate the position of each UHF passive RFID tag, and report the data of the UHF passive RFID tags (2) to the entrance management system (4).
9. The method of claim 8, wherein the method comprises the steps of: the UHF passive RFID reader-writer (1) reads two or more UHF passive RFID labels (2) which are distributed on a plurality of lanes; the UHF passive RFID readers (1) of the lanes can read the UHF passive RFID tags (2) of the vehicles in the overlapped area and report the UHF passive RFID tags to the entrance management system (4).
10. The method of claim 9, wherein the method comprises the steps of: the gateway management system (4) finally screens information of head-ranked vehicles of each lane after receiving the data of the UHF passive RFID tag (2) reported by the UHF passive RFID reader-writer (1), acquires information such as passing authority and payment of the vehicles through local database comparison or cloud database query, and controls the gateway (3) to realize vehicle clearance or prohibition after the vehicle owners successfully pay.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911422198.1A CN111402477A (en) | 2019-12-31 | 2019-12-31 | Parking lot management system and method based on RFID vehicle positioning |
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| CN201911422198.1A CN111402477A (en) | 2019-12-31 | 2019-12-31 | Parking lot management system and method based on RFID vehicle positioning |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111915924A (en) * | 2020-07-31 | 2020-11-10 | 深圳市迅远科技有限公司 | RFID technology-based barrier-free access parking lot management system and method |
| CN112802345A (en) * | 2021-04-08 | 2021-05-14 | 成都宜泊信息科技有限公司 | Parking management method, system, electronic device and storage medium |
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| CN111915924A (en) * | 2020-07-31 | 2020-11-10 | 深圳市迅远科技有限公司 | RFID technology-based barrier-free access parking lot management system and method |
| CN112802345A (en) * | 2021-04-08 | 2021-05-14 | 成都宜泊信息科技有限公司 | Parking management method, system, electronic device and storage medium |
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