KR200383684Y1 - Multi function terminal for Active DSRC - Google Patents

Abstract

The present invention relates to a multi-function integrated vehicle mounting terminal that can provide a variety of services to the vehicle-mounted terminal for active short-range dedicated wireless communication network (DSRC). This design includes an active chip GPS antenna; A GPS receiver for receiving navigation data from a GPS satellite through an active chip GPS antenna and providing current position information of the vehicle; A key input unit; A vehicle interface unit for receiving vehicle state information; Charging device unit; Serial communication unit; Voice chip; speaker; An M-ISM unit modulating data into a radio signal and transmitting the signal to a side of a roadside base station through an antenna, amplifying the radio signal received through the antenna with low noise, and demodulating the data; And software for performing DSRC protocol, geographic information database (DB) for navigation, real-time traffic information database (DB) for real-time traffic information, vehicle status information delivered through vehicle interface, and GPS receiver It provides location information, traffic information through the speaker using the data transmitted from MMC, and is composed of an integrated microprocessor ASIC that provides a corresponding function according to the input of the key input unit.

Description

Multi function terminal for active short-range dedicated communication network {Multi function terminal for Active DSRC}

The present invention relates to a vehicle-mounted traffic information terminal, and more particularly, to a multi-functional integrated vehicle-mounted terminal capable of providing various services to a vehicle-mounted terminal for active short-range dedicated wireless communication network (DSRC). It is about.

Recently, technology in the field of telematics, which is born from 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 that provides short-range communication between roadside equipment (RSE) installed on roadsides and on-board equipment (OBE) mounted on vehicles. Wireless communication with each other within the radius enables the construction of advanced road traffic environment through automatic toll collection (ETC) and road traffic safety information.

However, the conventional DSRC terminal has a problem that its function is limited, bulky, and expensive using conventional semiconductors.

In order to solve the problems of the prior art, the present invention incorporates a GPS receiver and integrates location information, vehicle speed information, traffic delay information, billing device information, vehicle model information, MP3 music play function, navigation monitoring function, and the like. The purpose of the present invention is to provide a multifunctional integrated vehicle-mounted terminal (hereinafter, simply referred to as a 'multifunctional integrated terminal') for an active short-range dedicated communication network.

In order to achieve the above object, the present invention provides an intelligent vehicle information system in which a terminal mounted on a vehicle and a roadside base station apparatus installed in a roadside, a toll gate, a parking lot, and the like, an active chip GPS antenna; A GPS receiver for receiving navigation data from a GPS satellite through the active chip GPS antenna and providing current position information of the vehicle; A key input unit for inputting various operations by the user; A vehicle interface unit connected to CAN, which is an in-vehicle network, or an ECU for performing various control operations in the vehicle, for receiving vehicle state information such as speed information, model information, and maintenance information of the vehicle; A charging device unit for processing various charging procedures related to the vehicle, such as tolls according to the ETC or parking fees when using a parking lot, using the financial information recorded on the card; A serial communication unit for downloading and upgrading various data such as geographic information data for navigation; A voice chip which stores various voice data necessary for navigation and converts the voice data into an audio signal or converts a text into a voice signal by a TTS method; A speaker for outputting the sound; An MIC unit for modulating data into a radio signal and transmitting the signal to the roadside base station through an antenna, amplifying the radio signal received through the antenna with low noise and demodulating the data; And a software for performing the DSRC protocol, a geographic information database (DB) for navigation, a real-time traffic information database (DB) for real-time traffic information, vehicle status information transmitted through the vehicle interface unit, and the GPS receiver Location information transmitted from the MMC, using the data transmitted from the MIC provides traffic information through the speaker, characterized in that it comprises an integrated microprocessor ASIC providing a corresponding function according to the input of the key input unit. .

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 a multifunctional integrated terminal according to the present invention, Figure 2 is a block diagram of a multifunctional integrated terminal according to the present invention.

Referring to FIG. 1, the multifunctional 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 using a wired / wireless communication network 210, etc. It is connected to a center 220 or a multifunctional service server 230 that provides various services. 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 multifunction 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 roadside base station 200 and the communication in accordance with the DSRC communication standards to provide a variety of services such as automatic toll (ETC), vehicle management, MP3 music services, and traffic from the traffic information center 220 The information is received and stored in the traffic information database 302 in the terminal. Therefore, the multi-function integrated terminal 100 according to the present invention can provide more accurate traffic information because it provides in consideration of real-time traffic information when providing a navigation service.

As shown in FIG. 2, the multifunctional integrated terminal 100 according to the present invention has a power supply unit (not shown) 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 to be provided, the multifunction integrated terminal 100 according to the present invention is composed of a case (not shown) to be easily attached to the vehicle (1).

In addition, the circuit unit receives the satellite signals from the OBE unit 120 and the GPS satellite 5 which transmits and receives data by wirelessly communicating with the roadside base station apparatus 200 in the 5.8 GHz band according to the DSRC standard and processes various services such as ETC. GPS receiver 112 and key input unit 102 for receiving a radio signal through an active chip GPS antenna 111 and a GPS antenna 111 for demodulating, extracting navigation data, calculating position information, and providing various navigation data. ), Vehicle interface (I / F) unit 104, charging device unit 106, MP3 player 108, serial communication unit 110, voice chip 113, speaker 114, LCD assembly 115 And a backlight 116 or the like. The OBE unit 120 includes an MIC (Monolithic Microwave Integrated Circuit) unit 124 for providing high frequency wireless communication according to the DSRC radio standard, and an integrated microprocessor ASIC for providing services of various functions ( 122).

Referring to FIG. 2, the key input unit 102 is an input unit for the user to perform various operations, such as a button for requesting an emergency rescue, a button for requesting various services, a numeric pad for setting various operations, and the like, as necessary. Is done.

The vehicle interface unit 104 is connected to CAN, which is an in-vehicle network, or is connected to an ECU, which performs various control operations in the vehicle, and receives the vehicle's speed information, type information, and other vehicle status information, maintenance information, and the like. Provided to processor ASIC 122.

The charging device unit 106 is implemented as a smart card reader connected to the microprocessor 122, and uses various financial procedures related to the vehicle, such as tolls or parking fees according to the ETC, using financial information recorded on the smart card. Process.

The MP3 player 108 downloads and plays MP3 music files from the multi-functional service server of the DSRC network or through the serial communication unit 110 according to a user's request, and enables music listening while driving, and the serial communication unit 110 navigates. It is a RS-232C communication port or USB port for downloading and upgrading fixed information data such as geographic information data for PC, and is connected to a corresponding port of PC or PDA and downloads upgrade data from a navigation data upgrade site.

The GPS antenna 111 is an active chip antenna for miniaturization and low price, and receives a satellite signal from the satellite, and the GPS receiver 112 demodulates the satellite signal received through the GPS antenna 111 to extract the navigation data. The current position of the vehicle is calculated from the vehicle, and the position information is provided to the integrated microprocessor 122.

The voice chip 113 stores various voice data necessary for navigation and then converts the voice data into an audio signal or converts a text into a voice signal in a TTS (Text To Speech) manner.

The speaker 114 provides navigation information, a warning sound, or a sound reproduced by an MP3 player as sound.

The LCD assembly 115 displays a map, speed, and traffic information of the current driving area in a text or graphic form, and the backlight 116 secures the driver's view at night or in a tunnel section.

MMC (Monolithic Microwave Integrated Circuit) unit 124 communicates with the roadside base station through the DSRC antenna according to the DSRC radio standard. That is, the data transmitted from the integrated microprocessor ASIC 122 is modulated into a radio signal in the 5.8 GHz band and transmitted to the side of the base station through the antenna. The radio signal received through the antenna is amplified with low noise and then demodulated to decode the data. It is then passed to the integrated microprocessor ASIC 122.

Integrated microprocessor ASIC 122 is a software for performing the DSRC protocol in the internal memory, a geographic information database (DB) for navigation, a real-time traffic information database (DB) for real-time traffic information, vehicle interface unit 104 Vehicle state information (speed, vehicle model information, etc.) transmitted through the storage location information transmitted from the GPS receiver 112, and according to the input of the key input unit 102 provides a variety of functions as described below. For example, the LCD 115 may be used by using the position information transmitted from the GPS receiver 112 and the vehicle status information (speed, vehicle type, etc.), geographic information database, and real-time traffic information database transmitted through the vehicle interface unit 104. Navigation information is displayed on the screen.

Next, an example of a service provided through the multifunctional integrated terminal according to the present invention configured as described above will be described with reference to FIGS. 3 to 9.

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

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

When the power of the multi-function integrated terminal 100 according to the present invention is turned on, the initialization is performed (S1, S2). The satellite navigation signal transmitted from the GPS satellites 5 is received by the GPS receiver 112 through the active chip GPS antenna 111 and processes the navigation data to calculate the current position (S3). The integrated microprocessor ASIC 122 displays the surrounding map of the current location of the vehicle on the LCD screen using the previously downloaded geographic information database 304 and the vehicle status information. To display (S5). At this time, the multi-function integrated terminal 100 according to the present invention displays the real-time traffic information of the current driving location 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 It also provides traffic information.

When a specific service is requested by the user's key operation or by a command from the server, the corresponding service is provided according to a predetermined procedure (S6, S7). Services that can be provided include navigation information and real-time traffic information, as well as vehicle management services, emergency rescue request services, automatic toll collection service, automatic parking fee collection service, MP3 music service, Internet service, broadcasting service, direction speed location information There are a wide variety of services, including services, highway models, and services that provide information on toll gate charging devices.

On the other hand, the multi-function integrated terminal 100 according to the present invention can upgrade the navigation data for accurate geographic information and traffic information, as shown in Figure 4 connects the communication unit 110 of the multi-function integrated terminal to a PC or 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 multifunctional 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 a multi-functional 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 multi-function integrated terminal 100 according to the present invention normally enters the communication radius of the roadside base station 200 while operating in a navigation mode, the OBE unit 120 receives the radio signal of the roadside base station and receives communication according to the DSRC protocol. To perform. At this time, the real-time traffic information of the traffic information center 220 is transmitted to the OBE unit 120 of the multifunctional integrated terminal 100 through the communication network 210 and the corresponding roadside base station 200, the MMIC unit 124 is an antenna 126 Demodulates the received radio signal and transmits the data to the integrated microprocessor ASIC 122, and the integrated microprocessor ASIC 122 decodes it and upgrades the traffic information DB 302 referenced in 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 vehicle, and then the billing is requested. Accordingly, the multi-function integrated terminal 100 receives the financial information recorded on various cards through the billing unit 106. Settle and settle (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 multi-function integrated terminal 100 reads the current position information calculated from the GPS receiver 112 and emergency rescue with the current position 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.

8 is a flowchart illustrating a process of processing a vehicle management service in a multi-function integrated terminal according to the present invention, Figure 9 is a flow chart showing a procedure for processing an MP3 music service in a multi-function integrated terminal according to the present invention.

Referring to FIG. 8, when a user requests a vehicle management service by operating a key button or a vehicle management command from a server, the vehicle interface unit 104 collects various vehicle state information such as vehicle speed or vehicle model information. This is transmitted to the multifunction service server 230. The multifunction service server 230 transmits an action command when a necessary action for vehicle management is requested using the vehicle information according to a predetermined procedure, and the multifunction integrated terminal 100 displays the command on the LCD screen when the command is received. (S81 to S84). Therefore, the driver can quickly perform the necessary measures related to vehicle management.

When the user requests the MP3 music service, as illustrated in FIG. 9, the MP3 music file is downloaded from the multi-function service server 230, played back by the MP3 player 108, and output as sound through the speaker 114.

In the above embodiment, some services provided by the multifunctional service server have been described as examples, but the present invention is not limited to these examples, and many other services may be provided in various ways using the multifunctional integrated terminal.

As described above, the multi-functional integrated terminal of the present invention includes a navigation service provided by a GPS terminal and a real-time traffic information, automatic toll (ETC) service, a vehicle management service, and an MP3 music service provided by a DSRC method. Because it can be provided in a convenient installation and use, it can easily provide a variety of additional services.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the present invention described in the claims below I can understand that you can.

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

2 is a block diagram illustrating a multifunctional integrated terminal according to the present invention;

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

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

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

6 is a flow chart illustrating a procedure for processing automatic charge collection in a multi-function integrated terminal according to the present invention,

7 is a flowchart illustrating a procedure for processing an emergency rescue service in a multi-function integrated terminal according to the present invention;

8 is a flowchart illustrating a procedure of processing a vehicle management service in a multi-function integrated terminal according to the present invention;

9 is a flowchart illustrating a procedure for processing an MP3 music service in a multi-function 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

230: Multifunction Service Server

102: key input unit 104: vehicle interface unit

106: charging unit 108: MP3 player

110: serial communication unit 111: active chip antenna

112: GPS receiver 113: voice chip

114: Speaker 115: LCD

116: backlight 120: OBE section

122: integrated microprocessor ASICS

124: MMIC 126: DSRC antenna

Claims (4)

In an intelligent vehicle information system that enables wireless communication between a roadside base station apparatus installed in a roadside, a toll gate, a parking lot, and a terminal mounted on a vehicle, Active chip GPS antenna; A GPS receiver for receiving navigation data from a GPS satellite through the active chip GPS antenna and providing current position information of the vehicle; A key input unit for inputting various operations by the user; A vehicle interface unit connected to CAN, which is an in-vehicle network, or an ECU for performing various control operations in the vehicle, for receiving vehicle state information such as position speed direction information, vehicle model information, and maintenance information of the vehicle; A charging device unit for processing various charging procedures related to the vehicle, such as tolls according to the ETC or parking fees when using a parking lot, using the financial information recorded on the card; A serial communication unit for downloading and upgrading various data such as geographic information data for navigation; A voice chip which stores various voice data necessary for navigation and converts the voice data into an audio signal or converts a text into a voice signal by a TTS method; A speaker for outputting the sound; An ultra-high frequency amplification MIC unit for modulating data into a radio signal and transmitting the antenna to the side of the roadside base station through an antenna; And Equipped with software for performing the DSRC protocol, a geographic information database (DB) for navigation, a real-time traffic information database (DB) for real-time traffic information, vehicle status information transmitted through the vehicle interface unit, from the GPS receiver Active location characterized in that it comprises an integrated microprocessor ASIC, providing the traffic information through the speaker using the transmitted position information, the data transmitted from the MMC, and provides the corresponding function according to the input of the key input unit. Multifunctional integrated vehicle mounting terminal for short distance dedicated communication network. The method of claim 1, wherein the terminal Multifunctional active short-range dedicated communication network characterized in that it further comprises an MP3 player to download and play MP3 music files from the multi-function service server of the DSRC network or through the serial communication unit to enable listening to music during operation according to the user's request Integrated vehicle terminal. According to claim 1 or 2, wherein the terminal And a display means for displaying the navigation information on a screen. The terminal of claim 1, wherein the terminal comprises: Navigation service, vehicle management service, vehicle status service, direction speed location information providing service, traffic information providing service, emergency rescue service, music file service, expressway model, toll gate charging device can be used for any one or more services. Multifunctional integrated vehicle-mounted terminal for active short-range dedicated communication network, characterized in that.