KR20070106338A - The packing management system and method used rfid/usn - Google Patents

Abstract

A parking management system and a method using an RFID/USN(Radio Frequency Identification/Ubiquitous Sensor Network) are provided to guide a vehicle to an exact parking position and to search the vehicle through a sensor network. A method parking management system using RFID/USN includes the steps of: verifying if the information of a recognized vehicle is registered on a database server; registering the vehicle to the database server if not registered; guiding the vehicle to a parking space based on the recognized vehicle information; automatically collecting parking fee when the vehicle is checking out based on the vehicle information stored on the database; and obtaining real time parking space information from sensor nodes installed in the parking lot.

Description

Parking management system and method using wireless authentication and ubiquitous sensor network {The Packing Management System and Method Used RFID / USN}

1 is a configuration diagram briefly showing a parking management system according to the present invention.

      2 is a block diagram schematically showing a parking management system according to the present invention.

      3 is a diagram illustrating an RFID according to the present invention.

      4 is an installation diagram of an RFID device according to the present invention.

      5 is a view showing a sensor node according to the present invention.

      6 is a block diagram illustrating a sensor module of the sensor node of FIG. 4.

      7 is a sensor network configuration diagram.

      8 is a diagram illustrating a vehicle induction.

      9 is a flowchart of a parking management system according to the present invention.

      10 is a flow diagram of the overall system algorithm.

Fig. 11 is a flow chart of a fetch algorithm.

  The present invention relates to an integrated parking management system using RFID and USN. More particularly, the present invention relates to an RFID wireless recognition system for automatic parking of a vehicle in a parking lot management system and to identifying a parking space in a parking lot and inducing the vehicle to an empty space. By integrating and configuring the USN system, drivers and managers can use and manage parking lots efficiently and conveniently. And in order to automatically manage the parking, a parking vehicle detector for detecting a parking vehicle must be embedded at each floor of the parking area of the parking lot with a loop type or pressure sensor. However, the construction cost for installing the parking vehicle detector will be excessive. In addition, in the case of a large parking lot having a large number of parking spaces as the central controller controls the main controller, there is a problem in that a lot of wiring for connecting the parking vehicle sensor installed in the parking area and the main controller must be newly installed in the parking lot. In order to solve this problem, it is possible to operate the parking management system conveniently by using wireless communication capable and small sensor node and managing the data transmitted from each sensor node and the data transmitted from RFID system. This is to provide services such as searching for a parking space by searching for a parking lot in a specific location when the driver wants to go.

An object of the present invention is to inform the parking position in advance for the vehicle entering the parking lot to help the user to park the parking lot conveniently and to allow the administrator to manage the parking lot more efficiently and easily. .

The parking management system according to the object of the present invention is a vehicle recognition means for identifying a vehicle entering the parking lot and a vehicle information storage means for storing the information of the recognized vehicle and a vehicle to guide the vehicle into the empty space inside the parking lot. Parking vehicle recognition means to check the presence of the vehicle in each parking space in the guidance means and the parking lot, and network configuration means for constructing a network for transmitting the information of the vehicle recognized in the parking space to the central control unit and the designated location. And a parking information storage means for storing information and parking information of the vehicle and a parking fee payment means for automatically recognizing a vehicle leaving the vehicle and checking the parking fee.

In this case, the upper limb parking lot entrance vehicle checking means is a vehicle entry check means for checking whether the vehicle enters the parking lot, and after confirming the entry of the vehicle by the vehicle entry check means to check the information of the vehicle number and driver, etc. Parking means for entering the vehicle can be made, including.

In addition, the parking lot leaving vehicle identification means for checking whether or not the vehicle is leaving the parking lot, and if the vehicle is confirmed by the vehicle leaving or not checking means for checking the number of the vehicle and information such as the driver It may be made including a parking lot leaving vehicle checking means.

According to an embodiment of the present invention, the vehicle entry check means and the vehicle exit check means may each be a sensor node installed in each parking space at the entrance and exit of the parking lot.

The parking lot entering vehicle checking means may include an RFID tag recording a vehicle number and driver information, a reader for reading the tag, and an antenna.

The vehicle guiding means searches for and displays the parking space information displayed by the parking space display means for displaying parking location information and the parking vehicle recognition means and the parking vehicle recognition means for identifying the presence or absence of a parking vehicle for each parking space in the parking lot. It may comprise a search means for.

In addition, a wireless network configuration and a wired and wireless gateway are installed as a network configuration means for configuring a network.

According to an embodiment of the present invention, the means for determining the network configuration means and the presence of a parking vehicle may be a sensor node and a sink node equipped with communication equipment. And define the protocol for network configuration.

The parking information storage means includes a matching means for connecting the vehicle entering the parking lot and the empty space of the parking lot.

In addition, the parking fee payment means includes a automatic parking fee payment means that is automatically settled when leaving, and a charge settlement means for collecting charges directly to the parking lot manager.

According to one embodiment of the invention, the parking fee payment means may be an RFID tag.

The parking management method according to the present invention includes a parking vehicle checking step of checking a parking vehicle entry vehicle, a search and designation step of searching for and designating a parking space available in the parking lot when entering the vehicle, and a parking induction step of inducing a designated parking space. A recording step of recording that the vehicle is parked at a designated location, confirming that the vehicle has been parked, changing the space in which the vehicle has been parked to a parking area, and finally calculating the parking fee of the vehicle Characterized in that made.

In the parking lot entering vehicle checking step and the exit check step, the step of checking whether the vehicle enters and exits, and the step of checking the number or driver information of the vehicle before entering or leaving the vehicle.

The vehicle entry and exit confirmation step is characterized in that the tag reader reads the vehicle number and driver information from the RFID tag recorded the vehicle number and driver information.

The step of searching and designating the parking space includes searching for a space available for parking in the parking lot and delivering space information of the parking lot to the central control unit, and designating a parking location most conveniently and efficiently from the vehicle entering the parking lot.

The step of changing to the parking available area may include a step of confirming in real time the vehicle parked at a designated location, and displaying the empty space when the vehicle is out of the parking space and delivering it to the central control unit.

The step of searching and designating the parking space and the step of converting the parking space into a parking space is characterized by determining whether the vehicle is present in real time using the parking entrance and the sensor node installed in each parking space. In addition, the location notification display device may be a display device such as an electronic display board displaying a parking location or an audio device that informs by voice at a search and designation step.

The step of recording that the vehicle is parked in the designated parking space includes a checking step of confirming whether the vehicle is the designated vehicle, informing that the vehicle is parked in the designated space, and notifying the central controller to record the same.

The parking fee settlement step of the vehicle includes a step of checking a parking time when entering the exit, and a corresponding parking fee calculation and settlement step.

In a method of determining a parking time of a vehicle in the vehicle's parking fee settlement step, a tag reader reads the vehicle number and driver information from an RFID tag.

The present invention for realizing the above object is to automatically recognize the vehicle entering the parking lot by using the RFID-type wireless vehicle recognition technique, detects the presence of the sensor node is parked in the parking lot and informs it wirelessly With reference to the accompanying drawings, a method and system for installing a RFID system and a USN related device as a system for guiding a vehicle to an empty space will be described.

      1 is an overall system configuration diagram for parking guidance and vehicle induction and management as an integrated system using RFID and USN according to the present invention. When the vehicle enters the parking lot, the RFID wireless authentication system (01) operates to detect the approach of the vehicle through the sensor node 10 installed at the front and bottom of the entrance and exit, and to automatically recognize the vehicle. When the wireless authentication procedure is finished, the data obtained from the tag 11 is transmitted to the middleware 04 through the controller 03. At this time, the sensor nodes 05 installed in the parking lot sense the vehicle inside the parking lot and transmit the data to the sink node 06 wirelessly, which is transmitted to the middleware 04 through the wired / wireless gateway 07. . The empty space is found inside the parking lot based on the data transmitted to the sensor nodes, and the vehicle enters the parking lot is guided to the parking position at the shortest distance through the monitor (02). This series of tasks is performed in real time, and the vehicle parking state inside the parking lot through the data obtained from the sensor nodes 05 allows the parking lot manager and the drivers to come here to view the parking lot anywhere. Through the various application services 09 can be provided. The antenna (00) is attached to the ground or installed in a pole between the ground 1.5m ~ 2m above the recognition range is at least 50cm to 1.5m maximum.

  The meaning of RFID is radio frequency identification. In FIG. 3, RFID uses an 860-960 MHz band as an international frequency band for communication between a reader and a tag, and an operating frequency is 860-960 MHz, and follows radio regulations of each country within the reader's frequency. The reader 36 determines the channel frequency 34 that the reader can occupy at a specific time according to the regulations of each country to send the information, and when sending a low state signal, the ASK (Amplitude Shift) which turns on the transmit RF signal of the selected frequency. Keying) is transmitted to the tag by the modulation 32. The tag 33 receives the signal of the reader 36 to rectify / multiply the RF power to use as a source, and transmits the frequency signal received from the reader by modulating reflection 35 to send information. Korea uses 908.5 ~ 914MHz band including CT-2 return band and public communication transfer band.

  Tag is largely divided into EPC Tag and ISO Standard Tag, but we use Class0 Tag which is read-only tag among EPC Global Class0 and Class1. The detailed description of the tag is not a part of direct development, so I will not describe it in detail.

  In FIG. 2, the controller 24 serves to send information of the tag 21 coming through the antenna 22 and the reader 23 to the middleware 28 and to manage the reader and the antenna. The OSN (Object Name Service) server 29 is connected to the PML (Physical Markup Language) server 31 having the tag information to find information about each tag. The OSN server 29 is a role of connecting to the server having the EPC information from the EPC code and serves as a DNS of the Internet technology.

  In FIG. 1, the USN (Ubiquitous Sensor Network) emptyes a vehicle by using data on whether each vehicle is present or not for each interior space of the parking lot delivered from the sensor node 05 disposed in the parking lot to the sink node 06. It is a system that leads to space.

 The sensor communicates wirelessly. MSU for processing RF module (cc240) sensing data, memory for operating system and data suit, and sensors such as infrared, ultrasonic, temperature, humidity, and illumination according to the information to be sensed. It consists of mounted sensor module. Here, the sensor is used by selecting a sensor that can read the presence or absence of the vehicle, such as ultrasonic or infrared. The positions of the sensor node 05 and the sink node 06 are to be installed on the floor or ceiling of the parking lot. The reason is that the ultrasonic wave and the infrared ray have straightness, so as to avoid wrong data transmission by crossing the other area.

 In FIG. 5, MSU 59 uses ATmega128L, a low power 8-bit microcontroller core. It is designed to operate by using 2 AA batteries of 3V as a power source, and the RF module supports RF communication of 2.4GHz frequency band, Zibee protocol, and communication speed of 250Kbps by using Chipcon CC240 (51). In addition, the PCB antenna 56 was used to reduce the volume.

 External memory 54 uses 512 KByte of flash memory (AT45DB041B) 52 and 32 KByte of SDRAM (IDT71V256SA) 53 and provides interface with various sensors 57.

 The sensor module 66 of FIG. 6 includes sensors such as temperature 61, illuminance 62, humidity 63, gas 64, ultrasonic 65, and the ultrasonic 65 sensor is implemented as a separate module. .

 In FIG. 7, the sensor nodes 71 in the parking lot sense the vehicle in units of 1 second to 1 minute in order to detect the vehicle, and determine whether the vehicle is present in each parking space, which is transmitted to the middleware 74 in real time. At this time, each of the sensor nodes 71 transmits data wirelessly through static routing in order for sensor nodes to transmit data, and their data is relayed between the middleware 74 and the sensor nodes 71. Each sink node 72 serves as a role, and the sink node 72 transfers data through the wired and wireless gateways 73. In this case, routing means selecting a safe and fast way to send data packets to a destination. In the case of static routing, a person enters a route one by one, and the sensor node itself is not burdened, so the routing speed is fast and the performance is good. The sensor nodes 71 transmit data only to the sensor nodes 71 adjacent to the sensor node, instead of directly transmitting the data to the middleware 74 in order to send the data sensed by the middleware 74 to the sensor node 71. It is not necessary for 71 to have a large memory, thereby realizing miniaturization and low price in terms of size and price. The sink node 74 receives data from the sensor node 71 via the sensor node 71 and transfers the data to the middleware 74 through the gateway 73. The data transmitted to the middleware 74 is filtered to allow the manager 75 to see only the desired data, and the manager efficiently manages parking using the collected data.

 In the parking management system, the inside of the parking lot can be checked in real time based on the data received from each sensor node, and when the vehicle enters the parking lot, the seat is assigned to each vehicle and guided to the parking space until the vehicle is finished parking. In addition to detecting the vehicle, the internal environment of the parking lot can be detected by using a sensor such as temperature, illuminance, and humidity, so that it can cope with a disaster such as a fire more quickly.

 In FIG. 8, the monitor is provided at the entrance of the parking lot in order to guide the vehicle to the parking space, and the place where the vehicle should be parked is displayed. The monitor 83 is installed in the parking lot to guide the vehicle. When you are parked, read whether or not the vehicle is parked in the designated parking area. At this time, if a vehicle of someone other than the designated vehicle is going to park, only the designated vehicle can be parked by a guide message or a warning sound, which is directly controlled by the parking management unit. In addition, when a vehicle entering the parking lot leaves the designated space and leaves again, the vehicle is no longer guided to the designated space. In order to guide the vehicle to the parking space, the monitor 83, the antenna 81, and the reader 82 are installed at each major point, and the direction is indicated by the monitor 83 whenever passing through the antenna 81 range. This is the same as telling the parking space in the first part before entering the parking lot entrance, the antenna 81 is installed on the floor and ceiling two, the reader 82 to be installed on the wall or ceiling with the monitor 83.

 9 is a flowchart of the overall system, when a vehicle is first approached (91), the RFID system recognizes a tag (92), identifies whether it is a vehicle registered in the system (93), and issues a new RFID tag when the vehicle is not registered. (94) register the vehicle with the system. After going through the authentication process, the USN checks the parking space (95), if there is remaining space (96), displays the space with a monitor (97) and guides the vehicle (98). If there is no space left in the parking lot, that is, when it is full, it indicates that the car is full (102) and asks whether to wait until the space is reserved for parking or to return (103), and notifies you to wait. Starting from (95), if the decision is made to return, parking will fail (104). When the vehicle induction 98 to the parking space is finished, whether the vehicle is successfully parked (99) is read and if the parking is not properly inquired by the parking management unit (100) to park (101).

  In FIG. 10, the authentication process first detects the approach of the vehicle 110, reads whether the tag is attached 120, and then newly issues the tag 130 only for the vehicle without the tag. In recognizing the tag (140), if there is no problem when recognizing the 100% tag, but if it was not recognized even once, try to recognize (150) and if it does not recognize it even using the portable reader or administrator The tag is directly recognized by directly inquiring the driver's vehicle number or information, and the tag is recognized (160). When one or more antennas recognize one tag, the substantially read data reads only one tag through filtering (180). Since one tag information transmits the same information through more than one antenna, the same data may be more than one (170). Unnecessary data can place a load on the system. When duplicate data (multi-data) 170 does not occur, the authentication 190 ends. After the authentication process 190 is completed, the parking area is searched for parking the vehicle 200, and if there is no parking area, the vehicle waits for parking of the vehicle as described above or returns without parking (270). For reference, in the case of general free parking lot (apartment or hotel), the side gear of the vehicle may be released in the space other than the parking space, and the vehicle may be parked in the aisle, but such part is not described. When the vehicle that has passed the authentication process 190 after entering the parking available area search enters the parking available area 220 and leads the vehicle to the parking area 230. When the vehicle is guided to the designated space (240), the vehicle is parked (260) and at this time it is checked whether the designated vehicle is parked at the designated place. This can be confirmed through a monitor such as audio through an audio or an electronic signboard as described above. If the vehicle fails to guide, the vehicle is retried to guide the vehicle through audio or monitor (250). If the designated vehicle leaves the parking lot without parking in the parking area, the designated parking area is changed to the parking area again and the manager is notified. 280 and the parking fails (290).

 In FIG. 11, when the sensor node detects the presence or absence of the vehicle in the parking space, it is recognized as the departure when the sensor node is out of the sensor range while the vehicle is parked. At the exit, the vehicle senses the approach of the exiting vehicle as in the entrance (300). The difference from the entrance is that the tag has been newly issued at the entrance, so it is not necessary to know the existence of the tag. In tag recognition (310), if there is no problem in recognizing 100% tag, but if it was not recognized even once, try re-recognition (320), and if it still does not recognize using a portable reader or administrator The tag directly recognizes the vehicle number or information of the driver and directly inputs the tag to recognize the tag (330). When one or more antennas recognize one tag, the substantially read data reads only one tag through filtering (350). Since one tag information transmits the same information through one or more antennas, the same data may be more than one (340). When duplicate data (multi-data) 340 does not occur, the authentication (360) process is completed. After the authentication part is completed, the parking fee is automatically settled through the information such as a credit card from the customer registered in the tag 370 or the parking time is calculated as in the conventional parking system to be settled directly at the exit (380). After the settlement is completed, the space where the vehicle was parked is returned to the parking available area and notified to the manager (390).

The present invention relates to a parking management system using RFID and USN, which incorporates these methods, and includes a real-time parking guidance, guidance and management method, and an installation method of an RFID method and parking related equipment (sensor node). By inducing accurate parking location and vehicle tracking through the sensor network that could not be realized in the system, and by integrating and operating the data through the sensor network and the data of the RFID system in connection with the RFID system to develop a more convenient and efficient parking management system. Parking capacity identification and parking location guidance function, parking location information guidance function is included, so it is possible to solve the inconvenience of the parking lot user caused by the inability to recognize the location in the parking lot and the parking location guidance, without any wiring for each parking space Real time through wireless sensor network You can receive the information. In addition, it is possible to solve the illegal use of the parking lot by using RFID, and can check the parking capacity inside the parking lot of the place where the driver wants to go from the outside at any time through the internet, which can reduce the worry about the parking space. This can alleviate the inconvenience of having a parking ticket at all times. When installed in a parking lot that emphasizes customer service, such as a department store or a large discount store, it may be applied to increase sales through the effect of appropriately managing the parking vehicle according to the purpose of customer management to increase customer awareness. In addition, in order to provide a better environment and safety in public places used by many people, sensors such as temperature, illuminance and humidity can be used together to create a pleasant environment based on the data obtained through this. You can cope. By developing the above methods, it is possible to further improve the completeness by strengthening the weak characteristics such as unmanned in the existing parking guidance, guidance and management.

Claims (4)

The parking management system and method using RFID and USN to inform the parking lot in advance about the car entering the parking lot to induce the user to park conveniently, and the parking manager to manage the parking lot efficiently and conveniently. ; Automatic recognition means for automatically checking a vehicle entering the parking lot; Checking whether or not the vehicle information is registered in the database server; If not registered, any process of registering with the database server; A method of inducing a vehicle to an empty parking space based on the recognized vehicle information; A method of checking whether a vehicle is withdrawn based on vehicle information stored in a database and automatically collecting a fee when the vehicle leaves the vehicle; Any method for obtaining real-time parking lot space information from a sensor node installed in the parking lot and providing parking space information to a vehicle entering based on the obtained information; How to guide a vehicle to an empty parking space The method of claim 1, further comprising: installing a RFID reader at the vehicle entrance and exit of the parking management system and installing a sensor node to determine whether or not to enter; A method of providing sensor information in a parking space by providing a sensor node in a parking space to provide space information in real time, and providing information to a vehicle entering by transmitting data to the middleware in real time. The method of claim 2, further comprising: attaching an RFID tag to a front surface of the vehicle as a method for confirming information of an entering vehicle; A method of identifying a parking space in real time by installing an ultrasonic sensor at a sensor node; A method of interfacing with an air conditioning system by sensing various environmental information inside a parking lot by installing various sensors in a sensor node. The algorithm as shown in FIGS. 9, 10, and 11, which shows a series of processes performed by a vehicle entering a parking lot, allocating an empty parking space, and parking after leaving the parking lot.

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