KR20060071142A - Haiti integrated terminal - Google Patents

Abstract

The present invention relates to an integrated terminal of an intelligent traffic information system (ITS) for providing various services by integrating a terminal using an active short-range dedicated wireless communication network (DSRC) and a GPS traffic safety terminal.

The present invention is a navigation unit for processing navigation data from GPS satellites based on an intelligent vehicle information system that enables a wireless base station device and a roadside base station device installed on the roadside or tollgate wireless communication; And a DSRC processing unit configured to communicate with a traffic information server through the roadside base station device to receive real-time traffic information and to process an automatic toll collection service.

Accordingly, the ITS integrated terminal of the present invention can provide a navigation service provided by the GPS terminal, real-time traffic information and automatic toll collection (ETC) service provided by the DSRC method in one terminal, and are convenient to install and use. Various additional services can be easily provided.

ITS, Navigation, GPS, Terminal, DSRC, Integrated Terminal

Description

ITS terminal {ITS terminal}             

1 is a schematic diagram showing an overall system for providing a service to an integrated terminal according to the present invention;

2 is a block diagram of an integrated terminal according to the present invention;

3 is an operation flowchart of an integrated terminal according to the present invention;

4 is a flowchart illustrating a process of upgrading navigation data in an integrated terminal according to the present invention;

5 is a flowchart illustrating a procedure for receiving real-time traffic information in an integrated terminal according to the present invention;

6 is a flowchart illustrating a procedure of processing automatic charge collection in an integrated terminal according to the present invention;

7 is a flowchart illustrating a procedure of processing an emergency rescue service in an integrated terminal according to the present invention.

* Explanation of symbols for main parts of the drawings

1: vehicle 5: GPS satellites

100: integrated terminal 200: roadside base station

210: communication network 220: traffic information center

102: power supply section 104: circuit section

110: DSRC unit 111: DSRC RF unit

112: DSRC chip section 113: serial ROM

114: RAM 115: smart card reader

120: GPS module 121: GPS antenna

122: GPS receiver 131: key input unit

132: voice chip 134: backlight

135: LCD 136: communication unit

137: speaker

The present invention relates to a vehicle-mounted traffic information terminal, and more particularly, an intelligent traffic that can provide various services by integrating a terminal and a GPS terminal using an active short-range dedicated wireless communication network (DSRC). The present invention relates to an integrated terminal of an information system (ITS).

Recently, technology in the field of telematics generated by the combination of Telecommunication and Informatics has been in the spotlight. Telematics is a traffic information guidance, emergency rescue, remote vehicle diagnosis, It refers to a service that implements a mobile office by providing Internet services.

As a basic step of the telematics, a navigation terminal using GPS is widely used and used in a vehicle, and such a GPS terminal has a disadvantage in that it cannot provide real-time traffic information.

Meanwhile, communication methods applied to ITS can be classified into wired communication network, wide area wireless communication network, roadside communication network, and vehicle-to-vehicle communication network.In general, wired communication network and wide area wireless communication network are provided in the form of public communication network. The vehicle-to-vehicle communication network is an ITS-only communication network used in real time in a vehicle traveling at high speed. Dedicated Short Range Communication (DSRC) is a type of roadside communication network, which includes a roadside equipment (RSE) installed on a roadside and an on-vehicle terminal (OBE) mounted on a vehicle. Through wireless communication, it is possible to establish an advanced road traffic environment through the electronic toll collection (ETC) and road traffic safety information. By the way, the terminal for DSRC can provide real-time traffic information, but there is a disadvantage that can not provide a navigation function.

Therefore, in order to use the services such as the ETC and navigation services according to the DSRC method at the same time, the GPS terminal and the DSRC terminal must be mounted and used in the same vehicle, respectively, so that the installation is complicated, expensive, and inconvenient to use.

Accordingly, an object of the present invention is to provide an ITS integrated terminal which can provide a navigation service and a service according to the DSRC method to one terminal by solving the above problems of the prior art.

In order to achieve the above object, the present invention provides an intelligent vehicle information system in which a roadside base station apparatus installed on a roadside or tollgate and a terminal mounted on a vehicle can wirelessly communicate with each other. A navigation unit for providing navigation information related to a location; And a DSRC processing unit configured to receive real-time traffic information by communicating with a traffic information server through the roadside base station apparatus, and to process the automatic toll collection service into one terminal.

The navigation unit may include a voice chip converting voice data related to navigation into a voice signal; A geographic information DB that stores data related to geographic information; A real time traffic information DB for storing real time traffic information; Display means for displaying the navigation information on a screen; GPS that receives navigation data from the GPS satellites, calculates a current location, and outputs navigation information related to the current location using the voice chip as a voice through a speaker using the geographic information DB and the real-time traffic information DB. It is composed of modules.

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

1 is a schematic diagram showing an overall system for providing a service to an ITS integrated terminal according to the present invention, Figure 2 is a block diagram of a configuration of the ITS integrated terminal according to the present invention.

Referring to FIG. 1, the ITS integrated terminal 100 according to the present invention is mounted on a vehicle 1 to provide a normal ITS service according to a DSRC network and to receive navigation data from a GPS satellite 5 to provide a navigation service. Can provide. That is, the roadside base station 200 that can communicate with the terminal 100 mounted on the vehicle at appropriate intervals is installed, each roadside base station 200 is a traffic information center (e.g., a wired communication network 210). 220). In this case, although not shown in the drawing, a financial settlement system, a card settlement system, an emergency rescue service such as a police station / fire station, etc. may also be connected through the communication network 210.

The ITS integrated terminal 100 mounted on the vehicle 1 receives navigation data from the GPS satellite 5 at all times while the vehicle is driving, and provides a navigation service at all times, and the vehicle 1 is a roadside base station 200. When entering the communication radius of the communication with the roadside base station 200 to provide services such as automatic toll collection (ETC), and receives real-time traffic information from the traffic information center 220 and stores it in the traffic information database in the terminal. Therefore, the ITS integrated terminal 100 according to the present invention may provide more accurate traffic information since the navigation service is provided in consideration of real-time traffic information.

As shown in FIG. 2, the ITS integrated terminal 100 of the present invention has a power supply unit 102 for supplying power required by the system using a vehicle or battery power, and a predetermined function when the power is turned on. The circuit unit 104 to provide, the case (not shown) and the like to be easily attached to the vehicle 1, the ITS integrated terminal 100 according to the present invention.

And the circuit unit 104 is a 5.8GHz band in accordance with the DSRC standard by wireless communication with the base station apparatus 200 to transmit and receive data, DSRC unit 110 for processing various services such as ETC and navigation data from the GPS satellite (5) GPS module 120, a key input unit 131, a voice chip 132, a backlight 134, an LCD assembly 135, a communication unit 136, a speaker for calculating a location and providing various navigation services 137 and the like. The DSRC unit 110 is composed of a DSRC RF unit 111 for providing high frequency wireless communication according to the DSRC radio standard, a serial ROM 113, a RAM 114, a smart card reader 115, a DSRC chip 112. The GPS module 120 is configured of a GPS antenna unit 121 and a GPS receiver 122.

Referring to FIG. 2, the key input unit 131 is an input unit for a user to perform various operations, and the voice chip 132 stores voice data and then converts the voice data into an audio signal or text to speech (TTS). The text is converted into a voice signal.

The backlight 134 secures a driver's view at night or in a tunnel section of the LCD data information, and the LCD assay 135 displays a map, speed, and traffic information of a current driving area in a text or graphic form. The speaker 137 informs navigation information, a warning, or the like as a sound.

The communication unit 136 is an RS-232C communication port or USB port for downloading and upgrading fixed information data such as geographic information data for navigation and is connected to a corresponding port such as a PC or PDA to download upgrade data from a navigation data upgrade site. Receive.

The GPS receiver 122 stores a geographic information database (DB) for navigation and a real-time traffic information database (DB) for real-time traffic information in a flash memory, and the like from the navigation data received through the GPS antenna 121. The current position is calculated and the corresponding function is provided according to the input of the key input unit 131, and the navigation information is displayed on the LCD 135 using the geographic information database and the real-time traffic information database.

The serial ROM 113 of the DSRC unit stores software for executing the DSRC protocol, and stores various data in the RAM 114, and the smart card reader 115 fills the smart card to pay the toll according to the ETC. The processed amount is read and processed.

Next, a procedure of a service provided through the ITS integrated terminal according to the present invention configured as described above will be described with reference to FIGS. 3 to 7.

3 is a flowchart illustrating an operation of an ITS integrated terminal according to the present invention, and FIG. 4 is a flowchart illustrating a process of upgrading navigation data in the ITS integrated terminal according to the present invention.

The vehicle 1 equipped with the ITS integrated terminal 100 according to the present invention is driving on a road on which a roadside base station 200 according to a DSRC system is installed.

When the power of the ITS integrated terminal 100 according to the present invention is turned on, initialization is performed (S1, S2). The satellite navigation signal transmitted from the GPS satellites 5 is received by the GPS receiver 122 through the GPS antenna 121 and the navigation data is processed to calculate the current position (S3). In addition, the GPS receiver 122 displays a current map of the vehicle and displays a current map of the current location of the vehicle using the previously downloaded geographic information database 304 on the LCD screen (S5). At this time, the ITS integrated terminal 100 according to the present invention displays the real-time traffic information of the current driving position and the real-time traffic information of the destination from the DB 302 storing the real-time traffic information received through the DSRC network, as well as real-time navigation as well as navigation It also provides traffic information.

Meanwhile, the ITS integrated terminal 100 according to the present invention may upgrade the navigation data for accurate geographic information and traffic information. As shown in FIG. 4, the communication unit 136 of the ITS integrated terminal is connected to a PC or a PDA. Then, access the road traffic information data update site through the Internet, and download the navigation data to upgrade the GIS DB (304) (S41 ~ S43). As described above, the ITS integrated terminal 100 according to the present invention is capable of upgrading navigation data as necessary.

5 is a flowchart illustrating a procedure for receiving real-time traffic information in the ITS integrated terminal according to the present invention, Figure 6 is a flowchart illustrating a procedure for processing automatic charges (ETC) in the integrated terminal according to the present invention, 7 is a flowchart illustrating a procedure of processing an emergency rescue service in an integrated terminal according to the present invention.

When the ITS integrated terminal 100 according to the present invention normally enters the communication radius of the roadside base station 200 while operating in the navigation mode, the DSRC RF unit 111 receives the radio signal of the roadside base station and communicates according to the DSRC protocol. Do this. At this time, the real-time traffic information of the traffic information center 220 is transmitted to the DSRC unit 110 of the ITS integrated terminal 100 through the communication network 210 and the roadside base station 200, the ARSRC chip 122 decoded After the transfer to the GPS receiver 122 to upgrade the traffic information DB (302) referenced during navigation (S51 ~ S53).

On the other hand, when the roadside base station is installed in the toll gate, it processes the automatic toll collection (ETC) service as shown in FIG. That is, in the case of ETC, the toll is calculated using the toll road entry information of the corresponding vehicle, and then the charge is requested. Accordingly, the ITS integrated terminal 100 pays the amount accumulated in the smart card through the smart card reader 115. And settlement (S61, S62). At this time, the payment may be made through a user's account or credit card company through a financial settlement server.

On the other hand, pressing the "Emergency rescue" button of the ITS integrated terminal 100 reads the current location information calculated from the GPS receiver 122 and emergency rescue with the current location information to the traffic information center 220 through the DSRC network Deliver the request signal (S71 ~ S73). Accordingly, the traffic information center 220 may transmit emergency distress information to the police station or 119, etc. close to the user's location, to induce appropriate action.

As described above, the ITS integrated terminal of the present invention can provide the navigation service provided by the GPS terminal, the real-time traffic information provided by the DSRC method, and the automatic toll collection (ETC) service as a single terminal. This convenient, various additional service can be easily provided.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the present invention without departing from the spirit and scope of the invention described in the claims below. I can understand that you can.

Claims (3)

In an intelligent vehicle information system, the roadside base station apparatus installed on the roadside or tollgate and the terminal mounted on the vehicle can wirelessly communicate. A navigation unit for receiving navigation data from a GPS satellite and providing navigation information related to a current location of a vehicle; And Haitis integrated terminal, characterized in that the DSRC processing unit for receiving the real-time traffic information through the roadside base station device to receive the real-time traffic information, processing the automatic toll collection service integrated into one terminal. The method of claim 1, wherein the navigation unit A voice chip converting voice data related to navigation into a voice signal; A geographic information DB that stores data related to geographic information; A real time traffic information DB for storing real time traffic information; And Receives navigation data from the GPS satellites, calculates the current location, and uses the voice chip to charge and balance the ETCS among navigation information and DSRC function related to the current location using the geographic information DB and the real-time traffic information DB. Haitis integrated terminal comprising a GPS module and a DSRC communication unit for outputting voice through the speaker. The method of claim 2, wherein the navigation unit And a display means for displaying the navigation information on a screen.

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