KR100593400B1 - Structure of radio frequency identification code, telematics service system and service method using same - Google Patents

Abstract

The present invention relates to a code structure of a radio frequency identification (RFID) tag, a telematics service system using the same, and a service method thereof. Road facilities, such as road surfaces or traffic signals, are affixed with RFID tags to provide location and road related information. In addition, the telematics service system of the present invention, which is mounted in a vehicle, acquires location and road related information from an RFID tag installed in a road facility while driving or stopping, and provides a telematics service to a user, thereby generating a conventional GPS and wireless network. Not only can it reduce the error of the location information and road information, there is an advantage that can create a telematics service using the location and road-related information provided in real time.

RFID, location code, road code, automation code, authentication code, telematics

Description

Structure of radio frequency identification code, telematics service system and service method using same {RFID CODE STRUCTURE, TELEMATICS SERVICE SYSTEM AND METHOD USING THE CODE STRUCTURE}             

1 illustrates a schematic principle of a telematics service system according to an embodiment of the invention.

2 is a schematic system configuration diagram in a vehicle to which the present invention is applied;

3 is a view showing a road facility with a radio frequency identification tag according to an embodiment of the present invention.

4A illustrates a passive radio frequency identification tag and an active radio frequency identification tag.

4B to 4E are diagrams for explaining the operation principle of the radio frequency identification tag and the protocol of the radio frequency identification tag.

5A to 5H are diagrams for explaining the structure of a radio frequency identification code according to an embodiment of the present invention.

6 is a view for explaining a telematics service system according to an embodiment of the present invention.

7A and 7B are diagrams for explaining a telematics service method according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

601: RFID Tag 611: RFID Reader

621: RFID information classification processor 622: location information processor

623: Road Information Processor 624: Automation Information Processor

631: I / O controller 632: CPU

633: vehicle control interface 634: memory

641: automation information connection

The present invention relates to a code structure of a radio frequency identification (RFID) tag, a telematics service system using the same, and a service method thereof.

Location information refers to the actual location on the earth's surface and can be displayed by using a series of methods, such as a Global Positioning System (GPS). The GPS is a radionavigation system that uses satellites to measure the exact three-dimensional position, velocity, and time of time on the earth's surface, and it takes a signal from satellites whose location is precisely known by geometric trigonometry to reach the satellite after reaching the destination. It uses the principle of calculating the location of the destination by measuring the time. Recently, a communication method such as CDMA or GSM uses a network method that provides location information by using an accurate location of a wireless repeater. This provides the advantage of delivering location information to users inside the building.

Road information includes everything related to the road the vehicle travels on. This includes not only information about the road itself, such as the name of the road and ground information, but also the speed limit of the road, the function information of the road facilities, and the dynamic information according to the movement of the vehicle. It is possible to provide services such as route information search and road condition information such as traffic jam. Such a service provides an advantage that enables a user to efficiently use road-related information.

Telematics service is a data service that transmits and receives information by computer, wireless communication technology, satellite navigation device, and technology that changes text signal and voice signal in internet, especially in vehicle, aviation, ship, etc. Telematics service combines mobile communication technology with location tracking technology to provide real-time vehicle accidents, theft detection, driving route guidance, traffic and living information, and automatic driving functions to drivers, To manage, the method of obtaining location and road information forms one of the important elements of the telematics service based technology.

However, location information using GPS is not only provided with an error added intentionally for civil use for security reasons, but also incorrect location due to geographical change of the sending satellite, or due to the problem of radio interface in a crowded area. In some cases, information is provided, and there is a disadvantage in that it cannot be serviced inside a tunnel and a building due to a problem of radio wave strength. In case of the location information provided by the network method, the accuracy is low due to the difference in time and radio signal from the repeater, and the accuracy change occurs severely according to the user's location, and the location information gateway provided by the mobile carrier By paying for this, the economic burden can be increased. In addition, these technologies also lack the computing power of the portable terminal, and if there is a risk that the personal location information is leaked through the server to support the location information processing to perform the location calculation through the server. In the case of road information, information is gathered by irregularly receiving information from people or vehicles located in the field or by installing facilities such as cameras and sensors at specific points on the road. However, since the service provider holds only the information limited to a specific point, it is difficult to transmit and manage the information on the entire road facility, and the service that needs to integrate with other forms of spatial information is not smooth. There is a disadvantage that can not be provided.

Therefore, there is no risk of leakage of personal information, and there is a demand for a technology capable of providing real-time services by extracting accurate location and road information even in the city center and indoors. Accordingly, the present invention describes a method for providing a telematics service based on location information and road information using RFID.

Recently, RFID technology is composed of a very small IC chip and antenna to act as a wireless tag that can obtain information about the product without direct contact, replacing the conventional optical bar code to obtain information through contact, electronic, clothing, It is applied to various industrial fields such as food. The RFID is a wireless communication system consisting of an RFID reader for reading and decrypting functions and an RFID transponder for providing information. The RFID transponder is also called an RFID tag, and generally uses a passive mutual induction RFID tag. All the energy needed to operate the IC chip in the passive RFID tag is supplied by the reader and requires no power supply. The antenna coil of the reader generates a strong, high frequency electromagnetic field in the surrounding area, and a part of the emitted magnetic field generates the lead wire voltage to the coil antenna of the tag slightly away from the reader and is supplied as the tag's energy. Passive RFID tags typically consist of an IC and a coil antenna, and capacitors are optionally used to tune the tag's operating frequency to a specific value. Since active RFID tags use additional energy sources such as external power sources, RFID can be detected in a wider range by generating and transmitting a strong response signal even in a region where a reader's transmission frequency is weak. The IC permanently stores tag identifiers and other useful information, decodes and processes commands received from the reader, responds to the reader, and assists the hardware to resolve conflicts caused by multiple tags responding to an inquiry at the same time. Software and circuitry. The RFID tag contains information that can be used as an identifier in the memory of the IC chip.The location code proposed in 2000 to deliver the location information from the US AutoID Center has an 8-bit header part and 32 bits each to indicate the version. It consists of body parts that show latitude, longitude, and altitude. MIT only proposed the location code type, and there is no suggestion about the service method using it.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described technical problem, and includes a structure of a radio frequency identification code for transmitting location and road related information in an RFID tag installed in a road facility, a telematics service system using the code structure, and a service method thereof. The purpose is to provide.

The structure of the radio frequency identification code according to the present invention for achieving the above object corresponds to a signal transmission protocol with a telematics service system of a radio frequency identification (RFID) tag installed in a road facility. In the structure of the RFID code,

The RFID code is a class indicating a version indicating a state of a corresponding RFID tag, a type indicating type information on a place to be installed, a global identifier indicating identification information on a place to be installed, a data length of the corresponding RFID code, and a type of a class. At least one code including a header storing information about the identifier, a location code indicating the location information of the RFID tag, a road code indicating the information related to the road, and an automation code indicating the connection information of the adjacent RFID tag. It is characterized in that it comprises a variable length information code.                         

In addition, the telematics service system according to the present invention for achieving the above object is a radio frequency identification (RFID) tag fixedly attached to the road surface, pedestrian crossing, traffic lights, and road signs (RFID) tag CLAIMS 1. A system for providing telematics services by receiving road information, location information, and automation information from an RFID reader, the system comprising: an RFID reader for obtaining a road RFID code from the RFID tag; An RFID information classification processor classifying location information, road information, and automation information included in the information code based on the information included in the header of the road RFID code; Information processing means for processing contents of the classified location information, road information, and automation information; Control means for performing a telematics service processing function in a vehicle using location information, road information, and automation information processed by the information processing means; A vehicle control interface for automatically controlling a predetermined function in the vehicle using the location information, road information, and automation information; And an automation information connection unit for receiving data from the automation information and connecting the adjacent RFID tag.

In addition, the telematics service method according to the present invention for achieving the above object is a radio frequency identification (RFID) tag fixedly attached to the road surface, pedestrian crossing, traffic lights, and road signs (RFID) tag A method for providing a telematics service by receiving road information, location information and automation information from a device, the method comprising: (a) receiving location information from an RFID tag accessible at a current location to provide a telematics service such as vehicle driving control; (b) receiving road information and automation information from an adjacent RFID tag to provide a telematics service, and requesting information from the adjacent RFID tag using the automation information; And (c) if the RFID tag receiving the request of step (b) performs the validity check of the message and then delivers the requested information, performing vehicle control using the transferred information. It features.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 is a view for explaining a schematic principle of a telematics service system according to an embodiment of the present invention, by using an RFID reader coupled to a vehicle, location information, roads, and the like from RFID tags attached to road facilities such as road surfaces and traffic lights. An example of performing a telematics service by obtaining information and automation information is shown.

In FIG. 1, the block denoted by R is a road RFID tag including a location code such as coordinate identifier information such as WGS84, a road code such as speed limit information of a road, or an automation code such as other RFID tag information around. The location information, road information, and automation information provided by the road RFID tag can be obtained by using a probe vehicle such as 4S-VAN as the actual coordinate information of the location where the road RFID tag is attached, road-related information, and road RFID tag information of a neighboring neighborhood. It can be recorded automatically or manually by surveying or the like. The road RFID tag can be installed on any road facility to which the tag can be fixedly attached, such as road surface 101, pedestrian crossing 102, traffic light 103, road sign 104, and the user can The system 121 in the combined vehicle transmits an information request signal, and the road RFID tag in the vicinity transmits the location code, the road code, and the automation code in the tag in response thereto (111, 112).

2 is a schematic system configuration diagram in a vehicle to which the present invention is applied. The target vehicle includes basic elements that a computing system such as a CPU 201, a keypad / button input device 211, an output display 212 and a voice information speaker 213 and a memory 202 should have basically. . In addition, it includes vehicle control interface means connected to the computing system, such as vehicle speed controller 221, vehicle direction controller 222, and intelligent vehicle control module 223 for automatic vehicle control, RFID reader 231 for acquiring information, a mobile communication module 232 supporting a mobile communication function such as CDMA, GSM, and the like, and an external extension interface 233 capable of interworking with GPS, WLAN / Bluetooth, etc. . For example, when a PDA is adopted as a basic system, the mobile communication module 232, Bluetooth, WLAN, etc. may be connected internally, and the RFID reader 231, GPS, etc. may be extended through the CF and SD IO external expansion interfaces. Can be. When RFID becomes common, a vehicle or a system incorporating an RFID reader 231 is expected to appear, and is currently available using an external expansion interface.

3 is a view showing a road facility with a radio frequency identification tag according to an embodiment of the present invention.

In FIG. 3, the rectangular block denoted by R denotes an RFID tag installed in a road facility, and targets all objects using data and communication schemes in the form of RFID. The purpose of installing the RFID tag is to enable the telematics service system mounted on a vehicle to receive the telematics service by obtaining accurate location and road related information in real time regardless of the surrounding environment conditions.

For example, the RFID tag 301 installed on the road surface may be used as basic information for a driving route service by providing a road name or speed limit information of the road, and an RFID tag 307 attached to a traffic signal. May be used to control the automatic driving of the vehicle by providing change information of the traffic signal.

The installation place of the RFID tag is intended for all road facilities to which the tag can be fixedly attached, such as a road surface or a road sign. For example, the RFID tag is installed in a road surface 301, a pedestrian crossing 302, a pedestrian traffic light 303, a road sign 304, a boundary block 305 that separates a road from a sidewalk, and a traffic signal 307. Can be. In addition, the RFID tag can be automatically installed by a information manager using a vehicle such as 4S-Van or manually installed. For example, when the vehicle is automatically installed by using a vehicle, the vehicle may not only mount a device capable of physically installing the RFID tag but also include software for inputting or modifying information stored in the RFID tag. In the RFID tag installed on the road facility, the information stored by the administrator can be modified, and the administrator can manage the vehicle automatically by using a vehicle or directly by accessing it directly.

The RFID may be classified into an induction method and an electromagnetic wave method according to an interconnection communication method, and the RFID tag may be classified into an active RFID and a passive RFID depending on whether an additional energy source such as a battery or an external power source is used for operation. Classify.

4A illustrates a passive RFID tag 401 according to whether an external power source is used and an active RFID tag 402 to which a power source 403 is connected. In the case of RFID tags installed in road facilities, both types can be used.

For example, in the case of an RFID tag installed on a road surface, a passive RFID tag that does not use an external power source may be used.In the case of an RFID tag installed in a traffic signal, an active RFID tag that uses a signal source as an external power source may be used. Can be. In a communication method with an RFID reader, a passive RFID tag generally uses a mutual induction method, and a passive RFID tag 401 installed on a road surface and providing location information receives information according to a request 411 of an RFID reader. Pass 412. However, it is not necessary to unconditionally expose all kinds of RFID tags to the user, and the information may be provided by filtering the user's request message according to the nature and installation location of the stored information. In this case, if the user knows the access information of the corresponding RFID tag in advance, and transmits an information request message including the access information (413), the RFID tag performs a filtering process for checking the validity of the request message (414). In operation 415, the user may transmit information to the user.

4B to 4E are diagrams for describing an operation principle of a radio frequency identification tag and a protocol of the radio frequency identification tag.

In FIG. 4B, the distance 423 that a radio wave including the information of the RFID tag 421 reaches is generally dependent on the mechanical characteristics of the RFID tag and should be designed to be changeable according to the initial setting of the manager. For example, an RFID tag that provides location information on the road surface can have a small radio wave reach distance, and an RFID tag that provides a traffic signal that needs to acquire information from a long distance and allow the system to react. Long reach can be set.

The radio wave reach of the RFID tag is influenced by the antenna characteristics of the RFID reader 422. Like the general antenna, the antenna of the RFID reader 422 may use a directional scheme and an omnidirectional scheme, and the radio wave reach of the RFID tag should be designed according to its shape. Each RFID tag must take into account the installation distance from adjacent RFID tags, depending on radio wave reach. That is, adjacent RFIDs may not exist within a radio wave reaching distance of one RFID tag, and vice versa.

For example, in FIG. 4C, when the RFID tags 431 and 432 installed at regular intervals on the road surface have different propagation ranges 441 as they adjust radio wave reaching distances, the radio ranges overlap each other, but direct communication between the If it is impossible (442), a case where direct communication between each other (443) is possible, and a case where communication is directly possible (444) between a plurality of adjacent RFID tags may occur. The installation problem of RFID according to the radio wave arrival distance may be classified according to the type or location of information of the RFID tag.

For example, in the case of an RFID tag installed on a road surface and delivering location information, it is possible to provide continuous location information to a user by overlapping only a radio wave range and exchange RFID tag information between each other by installing to enable mutual communication. can do. When the propagation ranges overlap, when the RFID reader is in the overlapping range, it is necessary to design an algorithm for selectively acquiring one RFID tag or an algorithm for simultaneously acquiring information from multiple RFID tags. When one RFID tag can directly communicate with an adjacent RFID tag, information can be shared through direct communication. For example, the manager 451 that needs to input or modify the RFID tag information in FIG. 4D may access all the RFID tags and manage each RFID tag information (453). The information of the other RFID tag 455 may be managed through the 454 (452). In this case, as shown in Fig. 4E, a protocol design for communication between RFID tags is required.

Hereinafter, with reference to the accompanying drawings, the location and road-related data type in the RFID tag and the telematics service using the same according to an embodiment of the present invention will be described in detail.

5A to 5H are diagrams for describing a radio frequency identification code structure according to an embodiment of the present invention.

5A shows an example in which a road RFID tag includes a location code, a road code, and an automation code as a configuration example of a radio frequency identification code according to an embodiment of the present invention. The road RFID code is a collection of identification code structures including various types of class types. Each class includes a header of the leftmost 56 bits as a common part and has a length depending on the type of data code supported. Are distinguished by a variable Information Code.

FIG. 5B is a diagram for explaining the structure of each class and the type of service provided through the class. In the present invention, the road RFID code may include three types of different information codes, namely, a location code, a road code, and an automation code, to provide various telematics services. According to the setting of the administrator, only one type of information code may be included (501), two types of information codes may be included (502), or all three types of information codes may be included (503). When only one information code is included (501), three types of information codes are connected to the header, respectively, and are defined as classes 1 to 3. The above method defines two types of information codes including classes 4 to 6, and class 7 defines three cases in which three types of information codes are connected to a header. When two or more information codes are connected to the header, the order in which each information code is connected is determined during the initial setting of the manager and cannot be changed in the middle of the service. The road RFID code may be generated in various types according to the class type, and the type of telematics service provided is determined. For example, an RFID tag installed on a road surface and providing only road information transmits data using a road RFID code having a class 2 form.

5C illustrates an embodiment of a fixed length header starting a road RFID code. The header includes information on the corresponding road RFID tag and the road RFID code. The version, type, and global ID included in the header indicate the type information and identification information according to the state of the corresponding road RFID tag, the place where it is installed, and the length and class identifier ( Class ID) indicates the data size and class type of the corresponding road RFID code. The table below the header of FIG. 5C shows an example of applying each class proposed in FIG. 5B as a binary code of 4 bits in the header of FIG. 5C. For example, when installed on the road surface and provides only one type of location information, the content of the road RFID code is 140 bits (10001100, 8D) in length, the class identifier is set to 1, and the version of the road RFID tag is set to B. If the road surface type is assigned to 1A and the global identifier is assigned to 3FFFFFFD, the header of the entire road RFID code is expressed as follows.

5D illustrates an example of a location code (LC) among information codes proposed by the present invention. The location code is divided into parts for displaying the location code itself and coordinate information. The position code version (LC version) indicates generation time information of the corresponding position code, and the position code length (LC Length) indicates length information of the entire position code. One point on the map can be displayed in various types of coordinate systems. The location code can display various types of coordinate information at the same time, and different location managers (LMs) LM1, LM2, and. Expressed as ..) Each location manager is composed of a location manager type (LM Type) indicating a type of coordinate system and a latitude, longitude, altitude, and offset capable of displaying coordinate values. For example, if you display a latitude and longitude coordinate system and a TM (Transverse Mercator) coordinate system for a particular coordinate, the number of position managers (LM Count) is displayed as 2, and the type of position manager in position manager 1 (LM1) identifies the longitude and latitude coordinate system. The value (01) is displayed, and the latitude, longitude, and altitude indicate the corresponding coordinate value. The offset will indicate the correction range for the corrected coordinate value. In the case of the position manager 2 (LM2), it is configured in the same manner as above for the TM coordinate system FE to display the corresponding coordinate information.

5E illustrates an example of a road code (RC) among information codes proposed by the present invention. The road code provides all the information related to the road and is divided into parts for displaying the road information and parts for the road code itself similarly to the location code. The RC version indicates the generation time and the last modification time of the corresponding road code, and the RC length indicates the length information of the entire road code. Road codes can also store various kinds of road information at the same time, and each road information is assigned to Road Manager (RM) (RM1, RM2, ...). Each road manager is composed of a road manager type (RM Type) and a road manager information value (RM Value). The road manager has a variable length, since the data type and unit for each type are determined when setting the road manager type. For example, when the speed limit of the road is set to the road manager type, the length of the road manager information value may be determined as 16 bits and the unit may be determined as an identifier indicating Km. For example of a road code having two kinds of road information, the number of road managers (RM Count) is set to 2, and the case where the "Hanbat Bridge" having a speed limit of 60 km is set as the road manager type set in the table in FIG. 5E. The road manager 1 (RM1) is displayed in 00000001 and the hexadecimal number of Hanbat Bridge, and the road manager 2 (RM2) is displayed in FFFFFFFE and 003D (based on 16 bits).

5F shows an example of an automation code (AC) among information codes proposed by the present invention. The automation code enables the automated service by informing the telematics service system of the access information of the RFID tag adjacent to the road in advance. The automation code version (AC Version), one or more Automation Managers (AM) ( AM1, AM2, ...), and the AC Manager count. The automation code version indicates the generation time and the last modification time of the corresponding automation code, and the number of automation managers indicates the number of automation managers stored in the automation code. The automation code may also include a plurality of automation managers, each of which consists of an automation manager type (AM Type) and an automation manager identifier (AM ID). The automation manager type indicates type information of each road RFID tag, and the automation manager identifier indicates a global identifier, which is the same as 8bits type information and 32bits global identifier information indicated in a code header in the corresponding road RFID tag. For example, if you have two road RFID tags adjacent to you and each is installed on a crosswalk and a road sign, the version is 01FF, the crosswalk type is 84, and the road sign type is A7. If the global identifier of the road RFID tag is set to 1BBFFA9D and C3855EA4, respectively, the entirety of the automation code is expressed as follows.

5G and 5H illustrate an example of extending and modifying the road RFID codes of FIGS. 5A and 5B. 5G shows an extension for performing authentication for an institution / person who recorded a value of a road RFID code by adding a 32-bit Authorization Code 511. FIG. By using a public key based authentication code, it is possible to secure the reliability of the information recorded on the RFID tag. FIG. 5G illustrates an authentication class with an extended form that includes an authentication code in the base class of FIG. 5B (512, 513, 514).

6 is a diagram illustrating a telematics service system according to an embodiment of the present invention. The telematics service system illustrated in FIG. 6 includes a road RFID tag 601 including a road RFID code of FIG. 5, an RFID reader 611 for obtaining a road RFID code from a road RFID tag 601 installed on a road, and the RFID. RFID information classification processor 621 that extracts the corresponding RFID tag information based on the information included in the header of the road RFID code transmitted from the reader 611 and classifies the type of the information into location information, road information, and automation information. ), The location information processor 622 for processing the content of the information code classified as location information in the RFID information classification processor 621, the content of the information code classified as road information in the RFID information classification processor 621 Road information processor 623, the automated information processor 624 for processing the contents of the information code classified as automation information in the RFID information classification processor 621, the telematics stand in the vehicle CPU 632 and memory 634 to perform the bus processing function, an input / output controller 631 for providing an application interface of a user, a vehicle control interface 633 for automatically controlling a vehicle from RFID tag information, and an RFID tag It is composed of an automation information connection unit 641 for receiving data from the automation information therein and connecting the adjacent road RFID tag.

In the telematics service system of FIG. 6 configured as described above, the location information processor 622, the road information processor 623, and the automation information processor 624 operate as information processing means, and the I / O controller 631. The CPU 632 and the memory 634 operate as control means.

7A and 7B are diagrams for explaining a telematics service method according to an embodiment of the present invention.

In this example, three kinds of different road RFID tags 704 to 706, an RFID reader 703, a user output interface 702, and an intelligent vehicle control interface 701 are provided. The three kinds of road RFID tags 704 to 706 each include class 1 704 including the location code of FIG. 5, class 2 706 including the road code, and class 6 705 including the road code and automation code. ) Has the form

The user's telematics service system receives the location information from the road RFID tag 704 accessible at the current location (711), which is processed by the telematics system and passed to the user output interface for output to the user's application, the intelligent vehicle It is transmitted to the control system to provide a telematics service, such as controlling the driving route system of the vehicle (712).

For example, when a telematics service for autonomous driving is provided, the received location information provides coordinate information and geographic information on a user's PDA screen or voice in conjunction with map information, and a vehicle for autonomous driving. The location information is transmitted to the control system to check the validity and directionality of the vehicle's current position and driving path, and to automatically detect and correct any errors.

The vehicle travels and receives road information and automation information from the next road RFID tag 705 (713), which is transmitted to the user output interface and the intelligent vehicle control system similarly to step 712 to provide telematics services. to provide. The automation information obtained from the step 713 extracts the information on the adjacent road RFID tag 706 through a system internal processing process and requests information from the corresponding RFID tag. At this time, the request message includes the type of the RFID tag and global identifier information as shown in FIG. 5F. After receiving the request message, the road RFID tag 706 checks the validity of the corresponding message using a type and global identifier information matching method (715), and then transfers the road RFID code stored therein (716). When the example shown in the road RFID tag 704 that provides the location information is connected, the user's telematics service system is a road RFID tag installed in a road code and a traffic signal including road speed limit information from the road RFID tag 705. Receive an automation code that includes automation information for 706. The received road code is transmitted to the user output interface to recognize the speed limit information of the road to the user, and is transmitted to the vehicle speed control system so as to adjust the speed of the vehicle (712). In the case of the received automation code, after checking the type and global identifier information of the road RFID tag 706 installed in the surrounding traffic signal through internal processing of the telematics service system (714), an information request message is transmitted to the tag. When the road RFID tag 706 receives the information request message from the user's telematics service system, the message is delivered to the user through the comparison / matching process by extracting the type and global identifier information included in the message. Check whether or not (715). If the validity of the message is confirmed from the process 715, the tag transmits the road code including the traffic signal information of the installed point (716). When the user's telematics service system receives the road code, the user's telematics service system transmits the road code to the user output interface to inform the user of the current traffic signal situation, and transmits the signal to the autonomous driving system so as to control the traffic signal. For example, when the vehicle being driven receives a road code indicating that the current traffic signal is stopped, the vehicle is stopped by controlling the speed of the vehicle and, conversely, the road displaying that the current traffic signal is running. When receiving a code, the speed of the vehicle is increased to allow the vehicle to drive.

The telematics service method according to the embodiment of the present invention may be manufactured as a computer program and stored in a recording medium such as a hard disk, a floppy disk, a magneto-optical disk, a CD-ROM, a ROM, a RAM, or the like.

As described above, the present invention aims to obtain location and road related information provided from an RFID tag, and to provide telematics services and methods using the method, and a method model for installing an RFID tag on a road facility. Design the data and transmission type for the location and road related information that the user obtains from the RFID tag installed in the road facility, and design the embodiment of the telematics service and method provided using the information. have.

Accordingly, the present invention can reduce the error of the location information and the road information that can occur when using the existing GPS and wireless network by installing the RFID in the road facility and use the location information and road information provided in real time There is an advantage to create a telematics service using.

What has been described above is only one embodiment for implementing a radio frequency identification code structure, a telematics service system and a service method using the same according to the present invention, and the present invention is not limited to the above-described embodiment, the following patents Without departing from the gist of the invention claimed in the claims, any person of ordinary skill in the art to which the present invention extends to the technical spirit of the present invention to the extent that various modifications can be made.

Claims (8)

In the structure of an RFID code corresponding to a signal transmission protocol with a telematics service system of a radio frequency identification (RFID) tag installed in a road facility, The RFID code is, Information about the version indicating the status of the RFID tag, the type indicating the type information on the place to be installed, the global identifier indicating the identification information on the place to be installed, the data length of the corresponding RFID code, and the class identifier indicating the type of the class. The header you're storing, And a variable length information code including at least one of a location code indicating location information of the corresponding RFID tag, a road code indicating information related to a road, and an automation code indicating connection information of an adjacent RFID tag. By Structure of the radio frequency identification code. The method of claim 1, The RFID tag is fixedly attached to the road surface, crosswalk, traffic lights, and road signs Structure of the radio frequency identification code. The method of claim 1, The class type is determined according to the number of codes among the location code, the road code, and the automation code. Structure of the radio frequency identification code. The method according to claim 1 or 3, The location code is A location code version indicating generation time information of the location code; A location code length representing length information of the entire location code, And a plurality of location managers that represent coordinate information including latitude, longitude, altitude, and offset information of a particular location. Structure of the radio frequency identification code. The method according to claim 1 or 3, The road code is A road code version indicating generation time and modification time information of the corresponding road code; A road code length indicating length information of the entire road code; Characterized by consisting of a plurality of road managers storing information related to the road, such as the name of the road, speed limit Structure of the radio frequency identification code. The method according to claim 1 or 3, The automation code is An automation code version indicating the generation time and the last modification time of the automation code; A plurality of automation managers storing type information and global identifier information of adjacent RFID tags; Characterized in that the number of automation managers indicating the number of automation managers Structure of the radio frequency identification code. Vehicle accidents or theft by receiving road information, location information, and automation information from radio frequency identification (RFID) tags fixedly attached to road surfaces, crosswalks, traffic lights, and road signs. In the system for providing a telematics service of the detection, driving route guidance, traffic and living information guidance, automatic driving function, An RFID reader for obtaining a road RFID code from the RFID tag; An RFID information classification processor classifying location information, road information, and automation information included in the information code based on the information included in the header of the road RFID code; Information processing means for processing contents of the classified location information, road information, and automation information; Control means for performing a telematics service processing function in a vehicle using location information, road information, and automation information processed by the information processing means; A vehicle control interface for automatically controlling a predetermined function in the vehicle using the location information, road information, and automation information; And Receiving data from the automation information, characterized in that it comprises an automation information connection for connecting to the adjacent RFID tag Telematics Service System. Vehicle accidents or theft by receiving road information, location information, and automation information from radio frequency identification (RFID) tags fixedly attached to road surfaces, crosswalks, traffic lights, and road signs. In the method for providing a telematics service of the detection, driving route guidance, traffic and living information guidance, automatic driving function, (a) receiving a location information from an RFID tag accessible at a current location and providing a telematics service such as driving route guidance when the vehicle is auto-driving; (b) receiving road information and automation information from an adjacent RFID tag, providing telematics services such as speed control of the vehicle using the received road information, and using the received automation information to provide a road to the adjacent RFID tag. Transmitting a message requesting RFID code information; And (c) if the adjacent RFID tag receiving the request of step (b) performs the validity check of the message and then delivers the road RFID code information stored therein, the received road RFID code information is used. Performing driving control of the vehicle suitable for the traffic signal; How to service telematics.

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