CN112037562A - High-accuracy in-field reverse vehicle searching system, method and medium based on RFID technology - Google Patents

High-accuracy in-field reverse vehicle searching system, method and medium based on RFID technology Download PDF

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Publication number
CN112037562A
CN112037562A CN202010765514.1A CN202010765514A CN112037562A CN 112037562 A CN112037562 A CN 112037562A CN 202010765514 A CN202010765514 A CN 202010765514A CN 112037562 A CN112037562 A CN 112037562A
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rfid
module
server
accuracy
vehicle
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CN202010765514.1A
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Chinese (zh)
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蒋洪雷
罗高翔
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Shenzhen Xunyuan Intelligent Technology Co.,Ltd.
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Shenzhen Sanray Technology Co ltd
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
    • G08G1/141—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces
    • G08G1/144—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces on portable or mobile units, e.g. personal digital assistant [PDA]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Medical Informatics (AREA)
  • Traffic Control Systems (AREA)

Abstract

The application discloses high-accuracy in-field reverse vehicle searching system, method and readable storage medium based on RFID technology, the system comprises: the RFID label, the RFID detector, server and handheld terminal, the RFID label passes through communication module and RFID detector communication connection, the RFID detector passes through communication module and server communication connection, handheld terminal passes through communication module and server communication connection, wherein, the server includes vehicle orientation module, vehicle owner management module and geographic information system module, vehicle orientation module and geographic information system module pass through communication module and RFID detector communication connection, vehicle owner management module passes through communication module and handheld terminal communication connection, based on this system, can accurately discern the identity and the position area of vehicle through RFID label and RFID detector, and send corresponding information for the server, the information that will receive is passed to handheld terminal again by the server, thereby can accurately give and optimize through seeking the car information.

Description

High-accuracy in-field reverse vehicle searching system, method and medium based on RFID technology
Technical Field
The invention relates to the technical field of vehicle searching, in particular to a high-accuracy in-field reverse vehicle searching system and method based on an RFID technology and a readable storage medium.
Background
Currently, a part of large parking lots provides a reverse vehicle searching system. For the positioning of the parked vehicles, a video recognition technology is usually adopted, that is, a set of video recognition equipment is configured on each parking space, and the video recognition equipment determines the parking position of the vehicle by recognizing the number of the license plate.
The video equipment technology has high equipment cost and installation cost, and simultaneously, the condition of inaccurate license plate information identification of the vehicle easily exists due to the defects of video identification, so that the position information of the vehicle cannot be accurately acquired, and the accuracy of vehicle searching is reduced.
Disclosure of Invention
The application mainly aims to provide a high-accuracy in-field reverse vehicle searching system and method based on an RFID technology and a readable storage medium, and aims to solve the problem that the vehicle positioning accuracy of the conventional reverse vehicle searching system is low.
In order to achieve the above object, the present application provides a high-accuracy in-field reverse car locating system based on RFID technology, the in-field reverse car locating system includes: RFID label, RFID detector, communication module, server and handheld terminal, the RFID label passes through communication module with RFID detector communication connection, the RFID detector passes through communication module with server communication connection, handheld terminal passes through communication module with server communication connection, wherein, the server includes vehicle orientation module, vehicle owner management module and geographic information system module, vehicle orientation module and geographic information system module pass through communication module with RFID detector communication connection, vehicle owner management module passes through communication module with handheld terminal communication connection.
Preferably, the RFID tag is a passive ultrahigh frequency RFID tag and is mounted on a target vehicle and uniquely bound.
Preferably, the RFID detectors are disposed on parking spaces, and the RFID detector signals cover one or more parking spaces.
Preferably, the RFID detector is bound to the geographic information system module.
Preferably, the RFID detector comprises a periodic scanning module, and the periodic scanning module is in communication connection with the server through the communication module and sends a scanning result within a detection range to the server.
Preferably, the communication module is a wireless communication module.
Preferably, the handheld terminal comprises an information output module, and the information handheld module is used for outputting the vehicle positioning information received from the server.
The application also provides a high-accuracy in-field reverse vehicle searching method based on the RFID technology, which is applied to the high-accuracy in-field reverse vehicle searching system based on the RFID technology, and the method comprises the following steps:
receiving detection information transmitted by the RFID detector;
determining the position information of the RFID to be positioned according to the detection information;
and sending the position information to a handheld terminal.
Preferably, before the step of receiving the detection information transmitted by the RFID detector, the method further includes:
detecting the validity of the RFID detector;
and if the detection result is legal, executing the step of receiving the detection information transmitted by the RFID detector.
The present application also provides a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the RFID technology-based high-accuracy in-field reverse cart locating method as described above.
The high accuracy field reverse vehicle-searching system based on the RFID technology in the application comprises: the RFID tag is in communication connection with the RFID detector through the communication module, the RFID detector is in communication connection with the server through the communication module, the handheld terminal is in communication connection with the server through the communication module, the server comprises a vehicle positioning module, a vehicle owner management module and a geographic information system module, the vehicle positioning module and the geographic information system module are in communication connection with the RFID detector through the communication module, and the vehicle owner management module is in communication connection with the handheld terminal through the communication module. Therefore, the vehicle searching information can be accurately optimized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present application;
fig. 2 is a functional block diagram of a high-accuracy in-field reverse car-finding system based on RFID technology according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a first embodiment of the high-accuracy in-field reverse car-searching method based on the RFID technology.
Reference numerals and names
Figure BDA0002612884840000031
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present application.
The terminal is the reverse car equipment of seeking in the field of this application embodiment.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that turns off the display screen and/or the backlight when the terminal device is moved to the ear. Of course, the terminal device may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a type of computer storage medium, may include an operating system, a network communication module, a user interface module, and an on-board reverse cart search program.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to invoke the intra-field reverse seek routine stored in the memory 1005 and perform the following operations:
receiving detection information transmitted by the RFID detector;
determining the position information of the RFID to be positioned according to the detection information;
and sending the position information to a handheld terminal.
Referring to fig. 2, the present application provides a high-accuracy in-field reverse car locating system based on RFID technology, which includes: RFID label 1, RFID detector 2, server 3, handheld terminal 4 and communication module 5.
It should be noted that, referring to fig. 2, fig. 2 is a functional block diagram of a high-accuracy in-field reverse car-finding system based on RFID technology according to an embodiment of the present application, in which the RFID tag 1 is communicatively connected to the RFID detector 2 through the communication module 5, the RFID detector 2 is communicatively connected to the server 3 through the communication module 5, and the handheld terminal 4 is communicatively connected to the server 3 through the communication module 5, wherein the server 3 includes a vehicle locating module 3a, a vehicle owner management module 3b and a geographic information system module 3c, the vehicle locating module 3a and the geographic information system module 3c are communicatively connected to the RFID detector 2 through the communication module 5, and the vehicle owner management module 3b is communicatively connected to the handheld terminal 4 through the communication module 5, optionally, the communication module 5 is a wireless communication module, and the wireless communication module is a 4G module or a 5G module. The server 3 may be a Huacheng server or an Ali server, etc. The vehicle Positioning module 3a and the geographic information System module 3c may be a GPS (Global Positioning System) chip or a beidou chip. The vehicle owner management module 3b is a chip having a vehicle owner information storage capability. The communication module 5 may be an nRF24L01 wireless module. Information of vehicles parked in the parking lot can be accurately identified by the RFID technology.
The RFID tag 1 is a passive ultrahigh frequency RFID tag, is installed on a target vehicle and is uniquely bound. The RFID tags 1 are mounted on a vehicle body, bound with the vehicle one by one and have non-tamper property. The tag is encrypted and the content of the tag can only be identified by the RFID detector of the system. Due to the fact that the ultrahigh frequency RFID tag does not need to be powered through equipment to achieve wireless communication, ultra-low power consumption wireless communication with the outside is achieved.
The RFID detectors are arranged on parking spaces, signals of the RFID detectors cover one or more parking spaces, and the RFID detectors are bound with the geographic information system module. It should be noted that the coverage range can reach 1-20 meters, and can be adjusted according to the actual parking lot situation, for example, if two parking spaces share one RFID detector, the detection range can be adjusted to the size of two parking spaces. The mode that the RFID detector covers the area is adopted, the coverage area can be adjusted as required, equipment does not need to be installed on each parking space, and the system construction cost is greatly reduced. And the installation does not need to destroy the road surface, does not generate obstacles, is quick and convenient to install, and has extremely low installation and maintenance cost.
Further, the RFID detector comprises a periodic scanning module, which is in communication connection with the server 3 through the communication module 5, and sends a scanning result within a detection range to the server 3. In one embodiment, the RFID detector periodically scans for vehicle tags within detection range and sends the detection of changes to the server 3 in time. The RFID detector 2 is bound to the geographic information system module 3c in the server 3, so that the vehicle location can be determined from the RFID detector 2 and its geographic location information when the RFID tag 1 of the vehicle is scanned. The periodic scanning module may include a clock for controlling the periodic triggered scanning operation, and an RFID transmitter and receiver for scanning RFID tags and acquiring corresponding scanning results. The periodic scanning is more energy-saving and the accuracy of the scanning result can be ensured.
Further, the RFID detector comprises a position change reminding module, the position change reminding module is in communication connection with the server through the image module, and when the information that the RFID tag leaves in the detection area is detected, the position change reminding module sends the change information to the server and informs the server to send the change information to the corresponding handheld terminal. The position-independent image module comprises a storage chip and a prompting device such as a buzzer and the like. Can send the message when the vehicle leaves the parking stall and remind the car owner to when the vehicle takes place the position change unusually, the car owner can know fast and react.
Further, it should be noted that the handheld terminal 4 includes an information output module, and the information handheld module is configured to output the vehicle positioning information received from the server. The handheld terminal can be a mobile phone, a tablet personal computer and the like, and corresponding information reminding is carried out according to the received vehicle position information transmitted by the server 3. The information output module is a display screen.
The high-accuracy in-field reverse vehicle seeking system based on the RFID technology comprises an RFID tag, an RFID detector, a communication module, a server and a handheld terminal, wherein the RFID tag is in communication connection with the RFID detector through the communication module, the RFID detector is in communication connection with the server through a second communication module, the handheld terminal is in communication connection with the server through the communication module, the server comprises a vehicle positioning module, a vehicle owner management module and a geographic information system module, the vehicle positioning module and the geographic information system module are in communication connection with the RFID detector through the communication module, the vehicle owner management module is in communication connection with the handheld terminal through the communication module, and the high-accuracy in-field reverse vehicle seeking system based on the RFID technology is provided by the invention, the identity and the position area of the vehicle can be accurately identified through the RFID tag and the RFID detector, corresponding information is sent to the server, and the server transmits the received information to the handheld terminal, so that the vehicle searching information can be accurately optimized. Meanwhile, the RFID technology can effectively reduce the equipment cost and the installation cost during the construction of the parking management system.
Based on the above terminal hardware structure, various embodiments of the present application are provided.
The application provides a high-accuracy in-field reverse vehicle searching method based on an RFID technology.
Referring to fig. 3, in a first embodiment of a high accuracy in-field reverse cart seeking method based on RFID technology, the method comprises:
step S10, receiving the detection information transmitted by the RFID detector;
the RFID detector is installed on the assigned position in parking area, and the detection range of RFID detector can be adjusted according to the actual conditions in different parking areas simultaneously, and the RFID detector can only cover a parking stall, also can cover two parking stalls. The RFID detector can regularly scan the vehicle label in its detection area to upload the testing result to the server, the RFID detector can simultaneously transmit the setting position that corresponds for the server. The server receives the detection information transmitted by the RFID detector.
Step S20, determining the position information of the RFID label to be positioned according to the detection information;
and determining the detection range of the RFID detector to which the RFID label to be positioned belongs according to the information of the RFID label in the transmitted detection information and the information of the RFID label to be positioned, and determining the position of the RFID label to be positioned according to the position information of the first RFID detector.
Step S30, sending the position information to a handheld terminal;
and sending the acquired position information of the RFID tag to be positioned to a handheld terminal, wherein the handheld terminal can be a mobile phone, a tablet personal computer and other equipment, and tells the specific position of the vehicle of the user through the handheld terminal.
In the embodiment, the detection information transmitted by the RFID detector is received; determining the position information of the RFID label to be positioned according to the detection information; and sending the position information to a handheld terminal. The position of the vehicle is positioned through the RFID technology, the positioning result is more accurate, and meanwhile, the equipment and installation cost of the parking lot can be reduced.
Further, on the basis of the first embodiment of the high-accuracy in-field reverse car-searching method based on the RFID technology, the second embodiment of the high-accuracy in-field reverse car-searching method based on the RFID technology is provided, and in the second embodiment,
before step S10, the method includes:
step A1, detecting the validity of the RFID detector;
step A2, if the detection result is legal, executing the step of receiving the detection information transmitted by the RFID detector;
the RFID tags are mounted on the vehicle body, are bound with the vehicle one by one and have non-tamper property. The tag is encrypted and the content of the tag can only be identified by the RFID detector of the system. The promotion RFID detector corresponds to the server, and only after the legality test is passed, namely the matching is successful, the RFID detector can successfully declare the RFID label in the range to be detected and transmits the RFID label to the server. Meanwhile, a complete flow example of the present application is: the RFID detector will scan that there is a vehicle parked in either slot 1 or slot 2 and, if necessary, the detector will upload the scanned RFID tag content to the server. And the server finds the corresponding vehicle according to the content of the RFID label and finds the corresponding geographic position according to the detector number, so as to obtain the current geographic position of the vehicle. Thereafter, the driver requests to obtain the own vehicle position through the handheld terminal program, and the server sends the latest vehicle position information (on the parking spaces 1 and 2) to the terminal program.
In this embodiment, the security of the method is determined by a validity check.
The specific implementation of the readable storage medium (i.e., the computer readable storage medium) in this application is basically the same as the embodiments of the high-accuracy in-field reverse car-searching method based on the RFID technology, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A high-accuracy in-field reverse vehicle searching system based on RFID technology is characterized by comprising: RFID label, RFID detector, communication module, server and handheld terminal, the RFID label passes through communication module with RFID detector communication connection, the RFID detector passes through communication module with server communication connection, handheld terminal passes through communication module with server communication connection, wherein, the server includes vehicle orientation module, vehicle owner management module and geographic information system module, vehicle orientation module and geographic information system module pass through communication module with RFID detector communication connection, vehicle owner management module passes through communication module with handheld terminal communication connection.
2. The RFID-technology-based high-accuracy in-field reverse car-seeking system according to claim 1, wherein the RFID tag is a passive uhf RFID tag and is mounted on a target vehicle and uniquely bound thereto.
3. The RFID-technology-based high-accuracy in-field reverse car-seeking system according to claim 1, wherein the RFID detectors are disposed on parking spaces and the RFID detector signals cover one or more parking spaces.
4. The RFID technology-based high accuracy in-field reverse hunting system according to claim 1, wherein said RFID detector is bound to said geographic information system module.
5. The RFID-technology-based high-accuracy in-field reverse car-seeking system according to claim 1, wherein the RFID detector comprises a periodic scanning module, and the periodic scanning module is in communication connection with the server through the communication module and transmits a scanning result in a detection range to the server.
6. The RFID technology-based high-accuracy in-field reverse car-finding system according to any one of claims 1 to 5, wherein the communication module is a wireless communication module.
7. The RFID-technology-based high-accuracy in-field reverse car locating system according to claim 1, wherein the hand-held terminal includes an information output module for outputting the vehicle locating information received from the server.
8. An RFID technology-based high-accuracy in-field reverse car-searching method, which is applied to the RFID technology-based high-accuracy in-field reverse car-searching system according to any one of claims 1 to 7, and comprises the following steps:
receiving detection information transmitted by the RFID detector;
determining the position information of the RFID label to be positioned according to the detection information;
and sending the position information to a handheld terminal.
9. The RFID-technology-based high-accuracy in-field reverse car-seeking method according to claim 8, wherein the step of receiving the detection information transmitted from the RFID detector is preceded by:
detecting the validity of the RFID detector;
and if the detection result is legal, executing the step of receiving the detection information transmitted by the RFID detector.
10. A readable storage medium, characterized in that the readable storage medium has stored thereon a computer program which, when being executed by a processor, realizes the steps of the RFID technology based high accuracy in-field reverse car-finding method according to any one of claims 7 to 8.
CN202010765514.1A 2020-07-31 2020-07-31 High-accuracy in-field reverse vehicle searching system, method and medium based on RFID technology Pending CN112037562A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN113593245A (en) * 2021-06-25 2021-11-02 北京云星宇交通科技股份有限公司 Electronic patrol device for parking vehicle

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Publication number Priority date Publication date Assignee Title
CN102646342A (en) * 2012-05-17 2012-08-22 上海海事大学 Intelligent guiding and car locating system for parking lot
CN105913682A (en) * 2016-06-27 2016-08-31 重庆交通大学 RFID technology-based intelligent reverse car locating method and RFID technology-based intelligent reverse car locating system
US20190066504A1 (en) * 2017-06-18 2019-02-28 George Zaloom System for automatically determining the position and velocity of objects

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102646342A (en) * 2012-05-17 2012-08-22 上海海事大学 Intelligent guiding and car locating system for parking lot
CN105913682A (en) * 2016-06-27 2016-08-31 重庆交通大学 RFID technology-based intelligent reverse car locating method and RFID technology-based intelligent reverse car locating system
US20190066504A1 (en) * 2017-06-18 2019-02-28 George Zaloom System for automatically determining the position and velocity of objects

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113593245A (en) * 2021-06-25 2021-11-02 北京云星宇交通科技股份有限公司 Electronic patrol device for parking vehicle

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