KR20210106854A - System And Method For Real-Time Traffic InformationService Using Vehicle - Google Patents

Abstract

The present invention relates to a system and a method for a vehicular real-time traffic information service. According to the present invention, vehicle location and travel information is received from individual vehicle terminals to configure traffic information. Then, traffic information required by a driver can be provided based on the information. In the related art, means for configuring or preserving current traffic information in real time is not provided regarding a vehicle driver heading for a destination. In addition, an effective and systematic traffic information service cannot be provided as it is impossible to provide an optimal path for congestion avoidance regarding travel to the destination. According to the present invention, vehicle location and travel information is estimated at the intra-vehicular terminal and transmitted to a central information center, which configures and manages real-time traffic information based on the vehicle location and travel information. As a result, a real-time traffic information service including an optimal travel path can be provided to a vehicle driver using the vehicle terminal.

Description

System And Method For Real-Time Traffic Information Service Using Vehicle

The present invention relates to a real-time traffic information service for a vehicle. In particular, after receiving vehicle location and driving information from individual vehicle terminals to configure the traffic information, based on this, real-time traffic information for a vehicle can be serviced by a vehicle driver. It relates to a traffic information service system and method.

In general, various moving objects such as ships, aircraft, and automobiles are equipped with a GPS (Global Positioning System) receiver for checking the current position and moving speed or determining a moving route, and such a GPS receiver is used from a plurality of satellites. After receiving radio waves indicating latitude, longitude, and altitude, the current position of the moving object is calculated, and map information including the current position is displayed to the driver.

That is, a typical navigation device displays the approximate current position of a moving object calculated using information received through a GPS receiver on a map displayed on a screen.

On the other hand, the recent traffic situation is reaching a limit due to the rapid increase in the number of vehicles, and the traffic congestion costs such as fuel consumption and time wastage caused by vehicles operating at less than a normal speed due to traffic delay are increasing rapidly.

In addition, such traffic congestion not only worsens external competitiveness by increasing logistics costs, but also causes environmental problems such as air pollution and social problems such as traffic accidents, which is a huge burden on the national economy.

Therefore, in the past, roads were newly built in line with the increase in traffic demand, but since new roads require enormous financial and time, in reality, there are many difficulties in constructing roads in line with the increase in traffic demand. there was a need to

Accordingly, what is being proposed as a new alternative is to mount the above-described navigation device on a vehicle, and it provides traffic information that allows vehicle drivers to check the traffic situation in their desired area, thereby distributing the traffic volume, thereby resolving road congestion, Through this, traffic congestion costs such as logistics costs and pollution can be reduced.

However, in the case of the above-described conventional vehicle navigation device, traffic information that can be checked in real time, such as displaying an optimal route to a destination obtained by arithmetic calculation, cannot be provided. In order to prevent traffic jams in the middle of the road, traffic information such as driving ahead or surrounding roads is required, but there is a problem in that such traffic information cannot be provided in the prior art.

That is, conventionally, there is no means for configuring or preserving the current traffic information in real time even when the flow of the vehicle is delayed or stagnated due to traffic delay in the section on the route while the vehicle driver drives to the destination. As a result, there was a problem in that an effective and systematic traffic information service could not be provided, such as failing to provide an optimal route for avoiding a congestion section for the driving section to the destination where the vehicle driver actually drives.

The present invention is to solve the above problems, and its purpose is to estimate the location and driving information of the vehicle from a vehicle terminal mounted in the vehicle and transmit it to the central information center, so that the vehicle location and driving information in the central information center Based on this, real-time traffic information can be configured and managed.

Another object of the present invention is to configure and manage real-time traffic information in a central information center to provide a traffic information service including an optimal driving route to a vehicle driver using a vehicle terminal.

A vehicle terminal mounted on a vehicle to estimate the location and driving information of the vehicle and transmit it through a mobile communication network, or receive a real-time traffic information service including an optimal driving route and display it to the vehicle driver; The vehicle location transmitted from the vehicle terminal and a central information center that configures and manages real-time traffic information by analyzing driving information, and provides real-time traffic information through a mobile communication network or a call center in response to a request from the vehicle terminal.

The real-time traffic information configured and managed by the central information center includes the vehicle traveling speed of each road, the speed at a certain point, the vehicle traveling speed and congestion index according to the direction of travel of a specific section, the average speed for each section, and the required time and expected congestion time. , and includes at least one information from among information indicating the arrival time of the destination and the expected congestion index.

The vehicle terminal includes a mobile phone interface unit that matches a mobile phone used as a wireless modem to perform data communication with the central information center; A sensor unit that collects vehicle information including RPM and direction information including the turning angle and direction of rotation of the vehicle; Measuring the position of the vehicle through the GPS receiver, but analyzing vehicle information or direction information collected through the sensor unit an operation unit for estimating the vehicle location and driving information necessary for constructing traffic information; and an information storage unit for storing vehicle location and driving information to be transmitted to a central information center or traffic information received from the central information center; ; An input/output unit that performs an input function necessary for a terminal operation for requesting or confirming traffic information of a driver using a vehicle terminal and an output function for visually or audibly displaying the traffic information stored in the information storage unit and; Perform overall control of the vehicle terminal, but transmit the vehicle location and driving information obtained from the calculation unit to the central information center, or communicate with the central information center through a call center to receive a corresponding real-time traffic information service and a system control unit for outputting the output through the input/output unit.

The process of estimating the location and driving information of the vehicle required for traffic information configuration based on GPS or sensors in an individual vehicle terminal and transmitting the current time information to the central information center; The process of analyzing and constructing real-time traffic information and then storing and managing it in a DB together with the corresponding time information; If there is a request for traffic information from a vehicle terminal, after determining the optimal route by referring to the traffic information stored in the DB The process of reconstructing information and transmitting it to the corresponding vehicle terminal; After storing the traffic information reconstructed by the central information center in the vehicle terminal in the information storage unit, the connection with the central information center is terminated, and the corresponding traffic information is stored in the information storage unit. It includes the process of displaying information visually or audibly.

The process of transmitting the location and driving information of the vehicle together with the current time information to the central information center includes the GPS-based location information in the individual vehicle terminal, vehicle information including the driving speed and RPM of the vehicle, and the turning angle and rotation of the vehicle. Collecting direction information including the direction; Analyzing the collected GPS-based location information to estimate the vehicle location information, and at the same time analyzing the vehicle information and direction information to include the vehicle's driving direction and instantaneous / section driving speed Performing a calculation for estimating driving information to be used; After accessing the central information center through a mobile phone connected to the vehicle terminal, the vehicle location and driving information obtained as a result of the calculation is transmitted to the central information center together with the current time information includes steps.

The process of transmitting the traffic information to the vehicle terminal includes the steps of selecting a shortest travel route and a plurality of proximate travel routes by referring to the departure point and destination information received when the information request is made when there is a traffic information request from the vehicle terminal; calculating the expected driving speed and destination arrival time by searching the DB for traffic information for each driving route; determining the optimal driving route by comparing the estimated driving speed to the destination calculated for each driving route and the destination arrival time step of; and reconstructing traffic information including the determined optimal driving route and transmitting it to a corresponding vehicle terminal.

As described above, the present invention estimates the location and driving information of the vehicle from the vehicle terminal mounted in the vehicle and transmits it to the central information center, thereby configuring and managing real-time traffic information based on the vehicle location and driving information in the central information center. This makes it possible to provide a real-time traffic information service including an optimal driving route to a vehicle driver using a vehicle terminal.

1 is a schematic block diagram of a real-time traffic information service system for a vehicle according to the present invention;
Fig. 2 is a detailed configuration block diagram of a vehicle terminal in Fig. 1;
3 is a flowchart illustrating a traffic information configuration procedure of a real-time traffic information service system for a vehicle according to the present invention.
4 is a flowchart illustrating a traffic information service procedure of a real-time traffic information service system for a vehicle according to the present invention.

A feature of the present invention for solving the above object is that it is mounted on a vehicle to estimate the location and driving information of the vehicle and transmit it through a mobile communication network, or receive a real-time traffic information service including an optimal driving route to the vehicle driver a vehicle terminal for displaying; A vehicle including a central information center that configures and manages real-time traffic information by analyzing the vehicle location and driving information transmitted from the vehicle terminal, and provides real-time traffic information through a mobile communication network or call center in response to the request of the vehicle terminal It is to provide a real-time traffic information service system.

Here, the real-time traffic information configured and managed by the central information center includes the vehicle traveling speed of each road, the speed at a certain point, the vehicle traveling speed and congestion index according to the direction of travel of a specific section, the average speed for each section, and the required time and congestion. It is characterized in that it includes one or more pieces of information among the expected time, the arrival time of the destination, and the information indicating the expected congestion index.

In addition, the vehicle terminal includes a mobile phone interface unit for matching a mobile phone used as a wireless modem to perform data communication with the central information center; A sensor unit that collects vehicle information including the driving speed and RPM of the corresponding vehicle through the vehicle's ECU, tachometer, gyro sensor, or geomagnetic sensor, and direction information including the turning angle and rotation direction of the vehicle; a calculation unit for measuring the location of the vehicle or for estimating vehicle location and driving information required for traffic information configuration by analyzing vehicle information or direction information collected through the sensor unit; an information storage unit for storing vehicle location and driving information to be transmitted to the central information center or traffic information received from the central information center; An input/output unit that performs an input function necessary for terminal operation for requesting or confirming traffic information of a driver using a vehicle terminal, and an output function for visually or aurally displaying the traffic information stored in the information storage unit; ; The overall control of the vehicle terminal is performed, but the vehicle location and driving information obtained from the calculation unit are transmitted to the central information center, or the corresponding real-time traffic information service is provided by communicating with the central information center through the call center. / It is characterized in that it includes a system control unit that outputs through the output unit.

On the other hand, another feature of the present invention, the process of estimating the location and driving information of the vehicle required for the configuration of traffic information based on GPS or standing in an individual vehicle terminal and transmitting the current time information to the central information center; a process of configuring real-time traffic information by analyzing the location and driving information of the vehicle in the central information center, then storing and managing it in a DB together with the corresponding time information; a process of determining an optimal driving route by referring to the traffic information stored in the DB when there is a request for traffic information from the vehicle terminal, reconstructing the traffic information and transmitting it to the corresponding vehicle terminal; After storing the traffic information reconstructed by the central information center in the vehicle terminal in the information storage unit, the connection with the central information center is terminated, and the corresponding traffic information is displayed visually or audibly. To provide a traffic information service method.

At this time, the process of transmitting the location and driving information of the vehicle together with the current time information to the central information center includes GPS-based location information from an individual vehicle terminal, vehicle information including the driving speed and RPM of the vehicle, and vehicle turning. collecting direction information including angle and rotation direction; Performing an operation to estimate vehicle location information by analyzing the collected GPS-based location information and at the same time to analyze the vehicle information and direction information to estimate the driving information including the driving direction and instantaneous/section driving speed of the vehicle; ; and transmitting the vehicle location and driving information obtained as a result of calculation to the central information center together with current time information after accessing the central information center through a mobile phone connected to the vehicle terminal.

In addition, the process of transmitting the traffic information to the vehicle terminal, if there is a request for traffic information from the vehicle terminal, referring to the departure point and destination information received when the information request is made, the step of selecting the shortest driving route and a plurality of proximate driving routes, ; retrieving traffic information for each selected driving route in a DB and calculating an expected driving speed and destination arrival time; determining an optimal driving route by comparing the estimated driving speed to the destination calculated for each driving route with the destination arrival time; and reconstructing traffic information including the determined optimal driving route and transmitting it to a corresponding vehicle terminal.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in the accompanying drawings, the real-time traffic information service system for a vehicle according to the present invention includes a vehicle terminal 20 mounted on a vehicle to transmit vehicle location and driving information or to receive a real-time traffic information service; A central information center 10 that provides a traffic information service configured by referring to a driving system and a communication system for a corresponding vehicle driver through a mobile communication network or a call center 15 while managing registration information for the vehicle terminal 20 and , by interworking with the central information center 10 to provide a call center (Call Center, 15) for providing a traffic information service in the form of voice to the vehicle terminal.

Here, the reference operating system in constructing traffic information refers to a series of processes in which the vehicle travels from the origin to the destination based on the road on which the vehicle travels, that is, the convenience or adaptability (of the road) of driving rather than the shortest distance. It is to determine the optimal driving route based on the situation, curvature, altitude, etc.) to determine the optimal driving route based on

In addition, the traffic information provided by the present invention is based on the vehicle location and driving information (driving direction, instantaneous/section driving speed) transmitted from the vehicle terminal 20 with reference to the above-described driving system and communication system, the central information center (10) is configured.

That is, the central information center 10 configures and processes real-time traffic information suitable for a driving system and a communication system based on the vehicle location and driving information transmitted from the corresponding vehicle terminal 20 while managing the vehicle terminal information to form a mobile communication network or It is provided to the corresponding vehicle terminal 20 through the call center 15, and at this time, the vehicle traveling speed of the individual road, the speed at a certain point, the vehicle traveling speed and congestion index according to the direction of progress of a specific section, the average speed and required for each section Traffic information for time and expected congestion time, destination arrival time and congestion index are configured, and the vehicle terminal 20 and TCP/IP (Transmission Control Protocol/Internet Protocol), WAP (Wireless Application Protocol) or SMS (Short) Message Service) is connected to the transmission method and provides relevant traffic information.

In addition, the call center 15 implements a function to call back the number sent to the mobile phone connected to the vehicle terminal 20 to provide an information service in the form of voice (ARS), Additional information service is provided through voice recognition (ASR) after the end of the charging system and service usage.

On the other hand, the vehicle terminal 20 mounted on the vehicle is combined with a mobile phone (ie, a mobile terminal such as a cellular phone, PCS, PDA, IMT-2000 terminal, etc.) with a dedicated connector to utilize the wireless data communication service provided by the mobile communication service provider. to perform data communication with the central information center 10, but collect and analyze vehicle location and driving information (driving direction, instantaneous/section driving speed) and transmit it to the central information center 10 to provide the corresponding traffic information service Looking at the detailed configuration of the vehicle terminal 20 for performing these functions, as shown in FIG. 2 of the accompanying drawings, a mobile phone interface unit 21, a GPS receiver 22, and a sensor unit 23 It has a configuration including a calculation unit 24 , an information storage unit 25 , an input/output unit 26 , and a system control unit 27 .

The mobile phone interface unit 21 matches the mobile phone for data communication with the central information center 10, and the GPS (Global Positioning System) receiving unit 22 allows the current terminal position to be acquired through a satellite.

The sensor unit 23 collects relevant vehicle information (driving speed, RPM) or direction information (vehicle's turning angle, rotation direction) through the vehicle's ECU (Engine Control Unit), tachometer, gyro sensor, or geomagnetic sensor. It is transmitted to the calculating unit 24, and the calculating unit 24 measures the position of the vehicle in which the vehicle terminal 20 is mounted through the GPS receiving unit 22, or collects vehicle information or direction information through the sensor unit 23. It analyzes and performs an operation for estimating the corresponding vehicle location and driving information.

The information storage unit 25 holds and stores vehicle location and driving information to be transmitted to the central information center 10 or traffic information received from the central information center 10, and the input/output unit 26 is a jog shuttle or An input function necessary for terminal operation for requesting or confirming traffic information of a driver using the vehicle terminal 20 equipped with hot keys and various buttons or switches, LED, LCD, beeper, speaker, etc. to provide an output function to visually or aurally display traffic information to the driver.

The system control unit 27 transmits the vehicle location and driving information obtained from the operation unit to the central information center 10 through the mobile phone interface unit 21 and the mobile communication network while performing overall control of the vehicle terminal 20, or central information The function of receiving the traffic information service requested by the driver is controlled by performing communication with the center 10 and the call center 15 .

In the vehicle real-time traffic information service system configured as described above, if the vehicle terminal 20 mounted on each vehicle transmits the current vehicle location and driving information to the central information center 10 , the central information center 10 transmits each vehicle terminal The vehicle location and driving information transmitted from (20) is provided to the vehicle terminal 20 after configuring real-time traffic information. The procedure is divided and explained as follows.

First, a traffic information configuration procedure of a real-time traffic information service system for a vehicle will be described with reference to FIG. 3 attached thereto.

When an individual vehicle driver supplies power to the vehicle terminal 20 mounted on the vehicle, the system control unit 27 of the vehicle terminal 20 controls the calculation unit 24 to provide real-time traffic information from the central information center 10 . The vehicle location and driving information required for configuration are estimated.

To this end, the operation unit 24 of the vehicle terminal 20 collects GPS-based location information through the GPS receiver 22 under the control of the system control unit 27 , and at the same time, the corresponding vehicle through the sensor unit 23 . After collecting the information and direction information (step S31), the vehicle location information is estimated by analyzing the collected GPS-based location information, and at the same time, the driving speed and RPM, which are vehicle information, and the turning angle and rotation direction of the vehicle, which are the direction information, are analyzed. Thus, an operation for estimating vehicle driving information is performed. In this case, time information through a real time clock of the terminal itself is used in addition to the above-described vehicle information and direction information.

Here, in the case of vehicle location information, in addition to the method of estimating using GPS-based location information, the vehicle location information can be estimated using cell-based location information of a mobile phone connected to the vehicle terminal 20 or using a three-dimensional algorithm, , the current location may be input from the vehicle driver through a button provided on the input/output unit 26 .

In addition, the vehicle driving information includes the driving direction and instantaneous/section driving speed. In the case of the driving direction, the vehicle's turning angle collected through the gyro sensor and the vehicle's rotational direction collected through the geomagnetic sensor are combined to determine the correct value of the vehicle. In addition to estimating the driving direction, the driving direction of the vehicle can be estimated by using the GPS movement and elapsed direction or by using the vehicle speed, mileage, and time. The instantaneous driving speed is estimated depending on the presence or absence, and the section driving speed of the vehicle is estimated using the driving distance and time.

Thereafter, the system control unit 27 of the vehicle terminal 20 stores the vehicle location and driving information estimated by the operation unit 24 in the information storage unit 25 (step S32), and on the other hand, the vehicle terminal 20 ) connected to the mobile phone as a wireless modem to access the central information center 10 through a mobile communication network (step S33), and then centralize the vehicle location and driving information stored in the information storage unit 25 along with the current time. It is transmitted to the information center 10 (step S34).

Accordingly, the central information center 10 performs error data detection and filtering on the vehicle location and driving information transmitted from the individual vehicle terminal 20 , and analyzes it to configure the traffic information and then the corresponding current time information. together with the DB (DataBase) and managed (steps S35 and S36), at this time, the vehicle traveling speed on individual roads or the speed at a certain point, the vehicle traveling speed and congestion index according to the direction of travel of a specific section, and the average speed for each section and traffic information such as required time or expected congestion time.

In addition, the traffic information described above in the central information center 10 utilizes GPS data and a Geographic Information System (GIS) engine, or provides traffic information based on the density of each section, the running time of each section, and the vehicle entry system centered on the main bases. Hereinafter, the traffic information configuration method will be described in detail.

First, the traffic information configuration method using GPS data and GIS engine is to configure the traffic information based on the driving speed received from the vehicle terminal 20 for all individual road conditions, which uses the GIS By matching the map with the map, the presence of the road and the corresponding road number are checked, and the driving speed of the vehicle on the road is checked. Traffic information including presence and congestion index will be constituted.

Second, the traffic information configuration method through the density by section is to aggregate the number of vehicles in a certain section to construct a congestion index through the vehicle density, which is the appropriate number of vehicles that can be driven at the prescribed driving speed in a certain section. After checking and calculating the number of vehicles by direction of travel in the section to calculate the vehicle density (section area/number of vehicles), the congestion index (congested, delayed, slow, smooth - expected driving speed) according to the calculated vehicle density traffic information including

Third, the traffic information configuration method through the travel time for each section is to receive the travel route of each vehicle with a time difference and calculate the section travel time, which is reserved in the vehicle terminal 20 of a specific vehicle or location transmission vehicle. By requesting the transmission, the vehicle location and the required time between the transmission times are checked to configure the traffic information including the duration of the corresponding section.

Fourth, the method of constructing traffic information centered on the vehicle entry system centered on the main base is to calculate the traffic flow by dividing the traffic situation grasping area and grasping the vehicle entry system centered on the main base, which is the current traffic situation. If the requested item is concentrated in a major congestion prediction area, the current traffic situation by calculating the vehicle location, driving direction, and driving speed in a complex way based on the detection method of the relevant section and traffic information including future traffic flows.

Meanwhile, as described above, in the state in which traffic information is configured and managed in the central information center 10, when there is a request for traffic information from the vehicle terminal 20, see FIG. 4 attached to the real-time traffic information service procedure. to be explained.

First, when a vehicle driver using the vehicle terminal 20 operates a traffic information service button provided in the terminal to select or input the final destination to which he or she wants to drive, and then requests the corresponding traffic information (step S41), The system control unit 27 of the vehicle terminal 20 uses a mobile phone connected to the mobile phone interface unit 21 as a wireless modem to access the central information center 10 through a mobile communication network (step S42).

Thereafter, when the central information center 10 is normally accessed, the current location estimated by analyzing the GPS-based location information, that is, departure information and destination information selected or input by the vehicle driver, is transmitted to the central information center 10 . to request traffic information (step S43), at this time, the departure point and destination information for requesting traffic information is transmitted to the central information center 10 together with the unique number and driver information (customer information) of the vehicle terminal 20 do.

Accordingly, in the central information center 10, after performing authentication using the driver information, which is the unique number and customer information transmitted from the vehicle terminal 20, the vehicle departure point and destination information transmitted together with the corresponding authentication information are used for transportation. The optimal driving route required for information composition is determined. At this time, the optimal driving route is determined by referring to the vehicle operating system and communication system, rather than determining the shortest route from the starting point to the destination as the optimal driving route.

That is, the central information center 10 selects the shortest travel route from the departure point to the destination that requests traffic information from the vehicle terminal 20 and a predetermined number of travel routes close thereto (step S44), By searching the DB for traffic information, the estimated driving speed and arrival time of the destination are calculated.

Then, an optimal travel route is determined by comparing the estimated main speed to the destination calculated for each travel route and the destination arrival time (step S45). Thereafter, the central information center 10 determines the optimal travel route. Reconstructed traffic information (i.e., the optimal driving route, the expected congestion time for each section on the optimal driving route, the destination arrival time, the turning point, the road number, etc.) to the corresponding vehicle terminal 20 It is transmitted (step S46).

Then, the system control unit 27 of the vehicle terminal 20 stores the traffic information including the optimal driving route received from the central information center 10 in the information storage unit 25 and then connects to the central information center 10 . (Step S47), and visually or aurally display the relevant traffic information to the vehicle driver through the input/output unit 26 (Step S48), so that the vehicle driver can refer to the vehicle operation.

At this time, the vehicle terminal 20 compares in real time the location coordinates of the vehicle estimated by analyzing the GPS-based location information and the coordinates of the driving turning point included in the traffic information transmitted from the central information center 10, When driving, if the turning point is close to the turning point so that it can turn according to the optimal driving route, it is displayed to the driver of the vehicle, or the vehicle driving speed on the road currently being driven or the speed at a certain point (for example, at 12:00, Seoul Road 42 No. 3 Local driving speed 65Km/h), vehicle driving speed and congestion index according to the direction of the section (e.g., about 75Km/h toward Gimpo Airport on Gangbyeonbuk-ro, smooth), average speed and required time for each section, and expected congestion Time (for example, from Yangjae Intersection to Gangnam Intersection, it takes about 27 minutes at an average of 34Km/h, and the driving speed is expected to increase to 60Km/h after 30 minutes due to a decrease in the number of vehicles on the road), destination arrival time, and expected congestion index (For example, it will take 35 minutes to reach the destination, and congestion is expected to increase due to the continuous increase of vehicles on the road.) In addition, various contents (e.g., '100M There is an unmanned surveillance camera in front', 'There is a 30% sale event at the Lotte Department Store in front').

In addition, when the driver of the vehicle requests detailed information in relation to the traffic information service to the destination, it automatically connects to the designated call center 15 and notifies the detailed traffic information to the destination in voice form, and the final destination After arrival, the traffic information stored in the information storage unit 25 of the vehicle terminal 20 is deleted.

On the other hand, in the above-described embodiment, the vehicle driver is limited to providing a traffic information service centered on the optimal driving route to the final destination, but the present invention is not limited to the above-described embodiment. When a waypoint is selected between destinations, traffic information can be provided by calculating the optimal route through the corresponding waypoint. Similarly, the vehicle traveling speed and the speed at a certain point on the individual road where the vehicle is currently located, the vehicle traveling speed and congestion index according to the progress direction of a specific section, the average speed and required time for each section and the expected congestion time, the destination arrival time and the expected congestion index, etc. We can provide traffic information service for

In addition, in the real-time traffic information service system for a vehicle according to the present invention, the above-described traffic information service can be provided even when the GPS receiver 22 is not built in the vehicle terminal 20 mounted on the vehicle. The terminal 20 may estimate and confirm a plurality of driving routes by selecting or receiving a current location, that is, starting point information and destination information from the driver, or selecting a waypoint between the starting point and the destination, and in the case of vehicle location information, the vehicle terminal By using cell-based location information of a mobile phone connected to (20) or estimating using a three-dimensional algorithm, it is possible to provide a corresponding real-time traffic information service.

Further, the embodiment according to the present invention is not limited to the above, and various alternatives, modifications, and changes can be made within the range obvious to those of ordinary skill in the art in relation to the present invention, for example, If a wireless modem is installed on the end of the vehicle, the above-described real-time traffic information service system and method for vehicles can be implemented by connecting to the central information center through the wireless modem without connecting a mobile phone. It is possible to provide the real-time traffic information service described above for information devices that can be accessed.

10: central information center 15: call center
20: vehicle terminal 21: mobile phone interface unit
22: GPS receiver 23: arithmetic unit
24: sensor unit 25: information storage unit
26: input/output unit 27: system control unit

Claims (6)

a vehicle terminal mounted on the vehicle to estimate the location and driving information of the vehicle and transmit it through a mobile communication network, or receive a real-time traffic information service including an optimal driving route and display it to the vehicle driver;
A central information center that configures and manages real-time traffic information by analyzing the vehicle location and driving information transmitted from the vehicle terminal, and provides real-time traffic information through a mobile communication network or a call center in response to the request of the vehicle terminal A real-time traffic information service system for vehicles featuring. The method of claim 1,
The real-time traffic information configured and managed by the central information center includes the vehicle traveling speed of each road, the speed at a certain point, the vehicle traveling speed and congestion index according to the direction of travel of a specific section, the average speed for each section, and the required time and expected congestion time. , A real-time traffic information service system for a vehicle, characterized in that it includes at least one information from among information indicating the arrival time of the destination and the expected congestion index. The method of claim 1,
The vehicle terminal includes: a mobile phone interface unit for matching a mobile phone used as a wireless modem to perform data communication with a central information center;
a sensor unit configured to collect vehicle information including the driving speed and RPM of the corresponding vehicle and direction information including the turning angle and rotation direction of the vehicle through the ECU, tachometer, gyro sensor, or geomagnetic sensor of the vehicle;
a calculation unit for measuring the location of the vehicle through the GPS receiver or for estimating the vehicle location and driving information required to construct traffic information by analyzing vehicle information or direction information collected through the sensor unit;
an information storage unit for storing vehicle location and driving information to be transmitted to the central information center or traffic information received from the central information center;
An input/output unit that performs an input function necessary for operating a terminal for requesting or confirming traffic information of a driver using a vehicle terminal, and an output function for visually or aurally displaying the traffic information stored in the information storage unit; ;
The overall control of the vehicle terminal is performed, but the vehicle location and driving information obtained from the calculation unit are transmitted to the central information center, or the corresponding real-time traffic information service is provided by communicating with the central information center through the call center. A real-time traffic information service system for a vehicle, characterized in that it includes a system control unit for outputting the /output unit. A process of estimating the location and driving information of the vehicle required for traffic information configuration based on GPS or sensors in an individual vehicle terminal and transmitting the current time information to the central information center;
a process of constructing real-time traffic information by analyzing the location and driving information of the vehicle in the central information center, then storing and managing it in a DB together with the corresponding time information;
a process of determining an optimal driving route by referring to the traffic information stored in the DB when there is a request for traffic information from the vehicle terminal, reconstructing the traffic information and transmitting it to the corresponding vehicle terminal;
and storing the traffic information reconstructed by the central information center in the vehicle terminal in the information storage unit, and then terminating the connection with the central information center and displaying the corresponding traffic information visually or audibly. A real-time traffic information service method for vehicles. 5. The method of claim 4,
The process of transmitting the location and driving information of the vehicle together with the current time information to the central information center includes GPS-based location information in an individual vehicle terminal, vehicle information including the driving speed and RPM of the vehicle, and the turning angle and rotation of the vehicle. collecting direction information including directions;
The step of estimating vehicle location information by analyzing the collected GPS-based location information and at the same time analyzing the vehicle information and direction information to perform an operation to estimate the driving information including the driving direction and instantaneous/section driving speed of the vehicle; ;
After accessing the central information center through a mobile phone connected to the vehicle terminal, the vehicle location and driving information obtained as a result of calculations are transmitted together with the current time information to the central information center. Way. 5. The method of claim 4,
The process of transmitting the traffic information to the vehicle terminal may include, when there is a request for traffic information from the vehicle terminal, selecting the shortest travel route and a plurality of proximate travel routes by referring to the source and destination information received when the information request is made;
retrieving traffic information for each selected driving route in a DB and calculating an expected driving speed and destination arrival time;
determining an optimal driving route by comparing the estimated driving speed to the destination calculated for each driving route with the destination arrival time;
A real-time traffic information service method for a vehicle, comprising the step of reconstructing traffic information including the determined optimal driving route and transmitting it to a corresponding vehicle terminal.

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