KR100892786B1 - Apparatus for collecting traffic information and terminal for providing speed information - Google Patents

Abstract

The present invention relates to a road traffic information providing system, and more particularly to a road traffic information providing apparatus mounted on a vehicle.

Traffic information providing system according to an aspect of the present invention transmits the traffic information data generated by the terminal for generating traffic information data based on the data received through the GPS signal to the traffic information collection device, the traffic information collection device is collected Local traffic information is generated from the collected traffic information data and retained. And it provides at least a part of the traffic information held in response to a request from the speed information providing terminal mounted on the vehicle.

According to the present invention according to this aspect of the present invention, there is an effect that can grasp the traffic traffic information of the road without a separate speed sensor, such as a speed sensor or CCTV installed on the road, significantly reducing installation and maintenance costs can do.

Traffic information, traffic volume, speed information, GPS

Description

Apparatus for collecting traffic information and terminal for providing speed information}

1 is a block diagram schematically showing the configuration of a traffic information providing system according to an embodiment of the present invention;

2 is a block diagram schematically showing the configuration of a traffic information collecting device according to the present invention;

3 is a block diagram schematically showing the configuration of a speed information providing terminal according to an embodiment of the present invention;

4 is a block diagram schematically showing the configuration of a speed information providing terminal according to another embodiment of the present invention;

5 is a diagram illustrating an example of a road to which the traffic information providing system according to the present invention is applied.

<Explanation of symbols for the main parts of the drawings>

100: situation management server 200: traffic information collection device

300: speed information providing terminal 210; Information provision department

220: traffic information integration unit 230: memory unit

240: data receiving unit 250: communication unit

260: data update unit 270: relay unit

310: GPS receiver 320: communication unit

330 control unit 340 data storage unit

The present invention relates to a traffic information providing system on a road, and more particularly to a road traffic information providing apparatus mounted on a vehicle.

Conventional methods of detecting traffic volume include a loop-type vehicle detector installed on a road surface in a freeway traffic management system (FTMS) to detect vehicle traffic conditions, a visual vehicle detector that detects road traffic conditions through video recording, and CCTV. For example, there is a method of collecting a result detected by a driving detection device such as an emergency call. FTMS (Freeway Traffic Management System) is an abbreviation for highway traffic management system. It is a highway intelligent traffic system (ITS) established by Korea Expressway Corporation to provide accurate traffic information and manage traffic conditions to drivers using highways.

However, the method of measuring the speed of the vehicle by installing a loop type detector involves civil works during the installation of the loop fucoil detector, which causes traffic inconvenience during the construction period. In addition, for collecting information, a separate dedicated cable should be installed or KT leased line should be used. The method of collecting traffic information by CCTV camera mainly transmits information through its own network. Therefore, installation costs or line maintenance costs are greatly generated.

In the method of detecting the speed of the vehicle by using the above-described driving detection devices, the speed of the vehicle, that is, the traffic volume information cannot be determined at the place where the speed sensor is not provided. Therefore, in order to detect the traffic volume, a large number of speed sensors should be provided for each road. Accordingly, the number of communication lines increases, thereby increasing the burden on installation costs and communication rents. How to use CCTV cameras also has a limitation that traffic information can be identified only in the area where CCTV cameras are installed.

The information collected by the FTMS is provided to drivers through traffic broadcasts and electronic signs on the road. The traffic information obtained by this method has a problem in obtaining the traffic information of the required point at the required time. On the other hand, there is a method of receiving the information through a mobile phone. In this case, the user bears the burden of paying the service maintenance fee separately in order to use the service. In addition, the information may be provided through FM text broadcasting. Even in this case, there is a problem in obtaining necessary information in real time, and even in a region in which the communication environment is not smooth, it is difficult to receive even the traffic information.

The present invention is to overcome the above limitations, it is possible to provide traffic information without the installation of a large number of speed sensors on the road to reduce the initial installation cost, providing traffic information that can be executed without traffic control for installation It is an object to provide a system.

In addition, the object of the present invention is to provide traffic information to a vehicle equipped with a speed information providing terminal by grasping traffic information of all roads on which the vehicle equipped with the speed information providing terminal according to the present invention operates without a separate speed sensor. Furthermore, it aims to identify relatively accurate traffic information.

In addition, regardless of the communication environment or the installation location of the speed sensor, the purpose is to enable the user to grasp the latest traffic information at a desired time.

The traffic information providing system according to an aspect of the present invention for achieving the above object is to transmit the traffic information data generated by the terminal for generating traffic information based on the GPS data received through the GPS signal to the traffic information collection device and The traffic information collecting device generates and maintains traffic information for each region from the collected traffic information data. And it provides at least a part of the traffic information held in response to a request from the speed information providing terminal mounted on the vehicle. The traffic information is provided by the traffic information collecting device when the speed information data is transmitted from the speed information providing terminal to the traffic information collecting device.

According to the present invention according to this aspect of the present invention, it is possible to grasp the traffic traffic information of the road without a separate speed sensor such as a speed sensor or CCTV installed on the road, it is possible to reduce the installation and maintenance costs have.

According to a further aspect of the present invention, the traffic information collecting device receives and updates traffic information of another area from the traffic information collecting device of another area, and as a result, keeps traffic information of all areas as the latest data.

Accordingly, in addition to the traffic information near the vehicle on which the corresponding terminal is mounted, it is possible to grasp the traffic volume information of the intermediate point to a destination or a destination desired by a remote user.

Furthermore, the traffic information providing system according to the present invention receives the destination information from the vehicle at a certain point, calculates the estimated time required by reflecting the traffic volume information to the corresponding destination, and provides the user with the required time reflecting the traffic volume of the road to the destination in real time. There is an effect that can provide information about.

According to another aspect of the present invention, the speed information providing terminal according to the present invention stores the traffic volume information received from the traffic information collecting device, and stores the traffic information retained by the speed information providing terminal mounted on the vehicle in the short distance Characterized in that provided to the speed information providing terminal mounted on.

According to another aspect of the present invention, the speed information providing terminal according to the present invention may perform short-range communication with another vehicle in a short distance by using an Ad-hoc method even in a region where communication environment is not good so that traffic volume information may be exchanged with each other. Characterized in that. Accordingly, it is possible to receive traffic information anywhere in the desired location without being affected by the communication environment, and to provide necessary traffic information even in an area without an AP. Therefore, the speed information providing terminal always maintains data including traffic information of every unit of road, and updates the information received from the AP or the counterpart terminal.

The foregoing and additional aspects of the invention are described in detail below to enable those skilled in the art to readily understand and reproduce through the embodiments described with reference to the accompanying drawings. 1 is a block diagram schematically illustrating a configuration of a traffic information providing system according to an exemplary embodiment of the present invention. As shown, the traffic information providing system according to the present invention receives a GPS signal from the vehicle-mounted information providing terminal 300 for generating and transmitting the traffic information data of the vehicle, and at least one information providing terminal 300 Traffic information collecting device for receiving the traffic information data from the processing to generate the integrated traffic information for each region to store in the memory.

Additionally, the traffic information providing system according to the present invention may further include a situation management server 100 that collects regional traffic information transmitted from the traffic information collecting device 200 and manages the regional traffic information as a database. The situation management server 100 may be a normal traffic central control server. The situation management server 100 includes all detailed traffic information and road unit information of all regions.

The traffic information collecting device 200 is a device in which a storage and processing function is added to an access point (AP), and the AP may be, for example, a wireless LAN. In the present embodiment, the traffic information collecting device is connected to a plurality of speed information providing terminals in a multiple access method. 2 is a block diagram schematically showing the configuration of a traffic information collecting device 200 according to the present invention. As shown, the traffic information collecting device 200 according to the present invention includes data for receiving traffic information for each region from the communication unit 250, the memory unit 230, and at least one terminal mounted in the vehicle through the communication unit 250. Receiving unit 240, the traffic information integration unit 220 for processing the received traffic information data to generate the integrated traffic information for each region to store in the memory unit 230, and the communication unit 250 in response to a request from the terminal It includes an information providing unit 210 for providing at least a portion of the integrated traffic information stored through the terminal.

The communication unit 250 may be a well-known wireless communication configuration including an RF circuit and an antenna. In the present embodiment, the communication unit 250 is implemented in a configuration corresponding to the communication unit 320 of the information providing terminal 300 to be described later. However, the present invention is not limited thereto, and wired communication may be possible through a cable.

The memory unit 230 may be implemented as an EEPROM or a flash memory. In the present embodiment, the memory unit 230 stores the integrated traffic information for each region.

The data receiver 240 receives the traffic information data from the speed information providing terminal 300 through the communication unit 250. In the present embodiment, the data receiver 240 receives the traffic information data from the speed information providing terminal 300,

Terminals are selected and received in consideration of the speed of the vehicle and the distance to the vehicle. At the same time, two or more terminals can be connected. This information is sent to the speed calculator to calculate the average speed. Average speed is the average speed in road units, and when calculating the average speed, log scale averaging method that weights the latest information can be used to more accurately understand the traffic conditions in the area.

The traffic information integrator 220 processes the traffic information data received from the at least one speed information providing terminal 300 to generate integrated traffic information for each region, and stores it in the memory 230. In the present embodiment, the traffic information integrating unit 220 receives the traffic information data periodically from the speed information providing terminal 300. The traffic information data may be, for example, time information, speed information, and location information included in the received GPS signal. The traffic information integrating unit 220 divides the plurality of received traffic information data by region based on the location information, and stores it in the memory unit 230. The preferred time information is time information when the terminal providing the traffic information data receives data from the GPS satellites. The speed information may be data in the form of a numerical value itself, or may be data in the form of grades classified by grades. The location information may be location information of a road unit processed from a speed information providing terminal, or may be coordinate information included in a GPS signal. The data receiver 240 may divide an area according to the coordinate information, and determine which area is traffic information data from the coordinate itself.

The information providing unit 210 extracts and provides at least a portion of regional traffic information stored in the memory unit 230 through the communication unit 250 to the corresponding terminal in response to a request from the terminal. In the present embodiment, the above-described traffic information integrating unit 220 and the information providing unit 210 may be implemented by a conventional microprocessor chip and programs mounted thereon. In the present embodiment, the information providing unit 210 may provide the average moving speed value as the numerical data itself, and according to the speed value, the traffic volume is divided into grades in terms such as 'communication, delay, and congestion'. You can also provide In addition, it may be implemented to display the color of each road differently according to the road situation on the terminal.

According to a characteristic aspect of the present invention, the traffic information collecting device 200 according to the present invention further receives a traffic information from another traffic information collecting device, and further includes a data updater 260 that integrates and stores its own traffic information. It is characterized by including. When the traffic information of the region requested by the terminal is insufficient, the data updater 260 requests the corresponding traffic information from another traffic information collecting device, and updates the corresponding traffic information of the memory unit 230 with the received traffic information. do.

In the present embodiment, the traffic information collecting device 200 is installed for each region but collects and holds traffic information of all regions in order to provide the terminal with information of all regions. The traffic information is a simplified form of a road unit, and traffic information including a detailed point is limited to the region-specific collection device 200 or the situation management server 100.

Meanwhile, the traffic information collecting device 200 may receive traffic information of an area not owned by another traffic information collecting device installed in another area, so as to quickly and accurately collect remote traffic information as needed. . In addition, the traffic information collecting device 200 provides the traffic information to the speed information providing terminal 300 by processing the collected information in a simplified form. The received information may be transmitted to the other speed information providing terminal 300 as necessary. This case occurs in an area without an AP. Therefore, there is an advantage that can provide traffic information even in a region without a separate AP.

The traffic information collecting device 200 according to the present invention further includes a relay unit 270 which receives the traffic information request data of a specific region from the first traffic information collecting device and transmits the request data to the second traffic information collecting device. do. As described above, the traffic information collecting device 200 according to the present invention receives information from other traffic information collecting device 200 about remote traffic information. In this case, not only one traffic information collecting device 200 but also a plurality of traffic information collecting devices 200 may be sequentially provided with traffic information of a far distance.

로 구할 수 있다. 예를들어 10분마다 지역내에 존재하는 차량의 속도정보 제공 단말기로부터 수신되는 속도i 들을 합하여 이를 단말기 수(N)로 나눔으로써 산출할 수 있다. 그러나 속도산출부(222)는 이에 한정되지 않고, 단순히 평균 속도 수치값에 대한 산출 뿐 아니라, 해당 지역의 교통난이 어느정도인지를 파악할 수 있는 데이터를 생성하는 구성을 모두 포괄하도록 해석된다. 본 실시예에 있어서, 속도산출부(222)는 단말기로부터 수신되는 교통정보 데이터에 포함된 시각 정보에 따라 그 교통정보 데이터에 포함된 교통정보의 적용 비율을 결정한다. According to another aspect of the present invention, in the traffic information collecting device according to the present invention, the traffic information integrating unit 220 applies a weight to a recently obtained traffic information data according to the acquisition time information of the traffic information data received from the terminal, and averages it. Characterized in that it further comprises a speed calculation unit 222 for calculating the moving speed. The speed calculating unit 222 collects a plurality of driving information data received by the data receiving unit 240 to calculate an average moving speed value of vehicles existing in the area. The average vehicle speed in your area

Can be obtained as For example, it may be calculated by adding up the speeds i received from the speed information providing terminal of the vehicle existing in the region every 10 minutes and dividing this by the number N of terminals. However, the speed calculation unit 222 is not limited to this, and is interpreted to encompass not only the calculation of the average speed numerical value but also a configuration for generating data capable of grasping the traffic shortage in the region. In the present embodiment, the speed calculator 222 determines the application rate of the traffic information included in the traffic information data according to the time information included in the traffic information data received from the terminal.

 In the present embodiment, the speed calculating unit 222 periodically calculates the average moving speed of the vehicle in the corresponding area, and recognizes the acquisition time of the traffic information data together, so that the specific gravity of the speed value of the recently obtained driving data even within the period. By applying a larger value, a more accurate average speed can be calculated.

According to an additional aspect of the present invention, the traffic information integrating unit 220 according to the present invention calculates the estimated time required to the destination received from the terminal by applying this according to the integrated regional traffic information, and provides the calculated result to the terminal. It further includes a time calculation unit 224.

In the present embodiment, the traffic information integration unit 220 may collect average speed information of the areas therebetween to the destination. The estimated time required to the destination designated by the user is calculated based on the collected information. For example, the total estimated time to the destination may be calculated by calculating the average value of the speeds of the regions located in between. In another embodiment, the estimated time passing through each region may be calculated and summed, respectively, to calculate the total time required to reach the destination. Estimated travel time from the average speed and distance information to the destination can be obtained as 'total distance information / average speed'.

3 is a block diagram schematically showing the configuration of a speed information providing terminal according to an embodiment of the present invention. As shown, the speed information providing terminal according to the present invention communicates data with a GPS receiver 310 for receiving a GPS signal, a data storage unit 340 for storing data, and an external traffic information collecting device 200. A communication unit 320 including a device communication unit 322 to perform, and traffic information data including a measurement time, a measurement area, and measured speed information of the vehicle according to the received GPS signal are generated in the data storage unit 340. The data generator 332 to store and the data generated by the data generator 332 are transmitted to the traffic information collecting device 200 through the device communication unit 322, and from the traffic information collecting device 200, It includes a control unit 330 including an information collecting unit 334 for receiving traffic information.

The GPS receiver 310 is implemented as a Global Positioning System (GPS) module that receives a GPS signal from a satellite. The GPS module measures the exact time and distance from three or more satellites and can calculate the current position accurately by triangulating three different distances. By calculating your current position, your past position and travel time, you can calculate the exact speed of your vehicle. The calculated speed is stored in the data storage unit 340 including a corresponding point, a road, and a corresponding time.

The data storage unit 340 may be implemented as an EEPROM or a flash memory. In the present embodiment, the data storage unit 340 stores the traffic information of the road obtained from the outside with the obtained visual information. In the present embodiment, the data storage unit 340 may accumulate and store traffic information data of the area that has moved along the route that the vehicle has moved along with the time information. However, in consideration of the data capacity, it is preferable that the latest traffic information is reflected and stored, and the information that has been passed for a while is deleted. For example, it can be implemented to store only information within an hour. You can even store traffic information for your destination. The data storage unit 340 separately maintains information that simplifies the traffic information of the country in units of roads in addition to the data generated by the corresponding terminal. This data can be obtained from the traffic information providing collection device 200 or other speed information providing terminal.

The communication unit 320 may be at least one of a wired communication configuration and a wireless communication configuration capable of performing data communication with an external device and a terminal. In the present embodiment, the communication unit 320 may be implemented in a well-known configuration including an antenna and an RF circuit for wireless communication. All parts corresponding to communication protocols and RF circuits can be implemented with DSP. Conceptually, when a signal of an RF frequency band is received through an antenna, the band is down-converted and outputted, and the band is converted by the band up-converted data and transmitted to the external traffic information collecting device 200 through the antenna. The baseband circuit of the communication unit 320 and most of the circuits of the controller 330 to be described later are commercially provided as a single integrated circuit. This integrated circuit, commonly referred to as an MSM chip, includes internally dedicated hardware for processing communications, a digital signal processor and a general purpose microprocessor. Each part constituting the control unit 330 may be configured by dedicated hardware or software or a mixture thereof. In addition, it may be implemented in a configuration for performing wired communication via a cable.

The device communication unit 322 transmits the traffic information request data to the traffic information collecting device 200 in a configuration capable of communicating with an external traffic information collecting device 200 and receives traffic information from the traffic information collecting device 200. . The device communication unit 322 may be configured to communicate with an external traffic information collecting device 300 through a network communication network. In the present embodiment, the device communication unit 322 is interpreted so as to encompass any configuration that performs communication in a manner already concluded by the traffic information collecting device 200 and the agreement. For example, the configuration may be configured to communicate with the traffic information collecting device 200 through a wireless LAN, or may be configured to communicate with an external traffic information collecting device 200 through a mobile communication network. It may be a configuration for performing wired communication through a cable.

The controller 330 may generate traffic information data including a measurement time, a measurement region, and measured speed information of the vehicle according to the received GPS signal, and store the data in the data storage 340. The information collecting unit 334 transmits the data generated by the data generating unit 332 to the traffic information collecting device 200 through the device communication unit 322 and receives the traffic information of the region from the traffic information collecting device 200. ).

The data generator 332 selects necessary information from the GPS signal received by the GPS receiver 310, and applies predetermined processing thereto to generate traffic information data. As described above, in the present embodiment, the traffic information data may be a predetermined form already concluded by an agreement with an external traffic information collecting device 200, identification information of the corresponding speed information providing terminal 300, It includes time information obtained from the GPS signal, current location information, and speed information of the current vehicle.

The information collecting unit 334 transmits the traffic volume information request message to the traffic information collecting device 200 through the device communication unit 322, and receives the corresponding traffic information request data from the traffic information collecting device 200 in response to the corresponding traffic information request data. The traffic information of the area is received and stored in the data storage unit 340. Furthermore, the information collecting unit 334 may collect traffic information about the whole country and store the information in a DB in the data storage unit 340.

According to a characteristic aspect of the present invention, the speed information providing terminal 300 according to the present invention further includes a terminal communication unit 324 in which the communication unit 320 performs data communication with another terminal, and the control unit 330 provides traffic information. In accordance with the reception state of the traffic information received from the collecting device 200, the information requesting unit 334 for requesting traffic information to the other terminal through the terminal communication unit, and receives the request data from the other terminal through the terminal communication unit 324 And, accordingly, characterized in that it further comprises an information providing unit 338 for providing the latest traffic information stored in the data storage to the terminal.

The terminal communication unit 324 may be implemented by the Ad-hoc method of the wireless LAN. In the present embodiment, data transmission and reception is performed in a wireless communication manner with a speed information providing terminal mounted on a vehicle existing in a nearby road.

The information requesting unit 334 requests the traffic information to another terminal through the terminal communication unit 324 according to the reception state of the traffic information received from the traffic information collecting device 200. In the present embodiment, the information collection unit 334 according to the present invention periodically receives the traffic information of the region from the external traffic information collection device, if there is no response for a certain time, the information requesting unit 336 is another terminal The traffic volume request message is characterized in that for transmitting.

Accordingly, when the communication state with the traffic information collecting device 200 is not smooth, traffic information is automatically obtained from other terminals, thereby obtaining traffic information in the area to which the traffic belongs, or traffic information of the road to be moved forward. Can be. Preferably, when the traffic volume information is obtained by communicating with the information providing terminal mounted on the vehicle existing in the opposite lane, the traffic information about the road near the destination can be obtained.

The information provider 338 receives the traffic information request data from another terminal, and accordingly provides the latest traffic information stored in the data storage unit 340 to the corresponding terminal.

In the present embodiment, the information providing unit 338 of the speed information providing terminal 300 according to the present invention receives the time information obtained from the traffic information collecting apparatus 200 according to the request message received from another terminal. Provides traffic volume information to be included, but the speed information providing terminal 300 compares the information acquisition time included in the at least one traffic information received from the other terminal to receive the most recently obtained information. Accordingly, the traffic information data stored in the data storage unit 340 may be updated with the latest information.

5 is a diagram illustrating an example to which a traffic information providing system according to the present invention is applied. Each of A.B.C shows a movement route of a vehicle equipped with a speed information providing terminal according to the present invention. As shown, the location for each area may be coordinate fee aware. As shown, terminal A transmits the traffic information data at the corresponding point to the traffic information collecting device 200 while passing through n1, n2, n3, n4. The other B terminal moves along the paths n10, n9, n8, n7, n2, and n1, and transmits the traffic information data measured at the corresponding point to the traffic information collecting device 200. The other terminal C similarly transmits the traffic information data measured at n6 and n5 to the traffic information collecting device 200 according to the movement route. Accordingly, the traffic information collecting device 200 may receive traffic information data from terminals A, B, and C to grasp traffic information of each point.

Here, for example, the traffic information collecting device may calculate the average speed of the corresponding area based on the information provided by A in calculating the average speed of the n1, n2 areas. Later, assuming that B passes n2, n1 at a later point in time, the traffic information collecting device 200 calculates an average speed of n1, n2 points by B rather than traffic information data obtained by A. The average speed information of the region is calculated by applying a greater proportion of the obtained traffic information data. Accordingly, the traffic information collecting device 200 has an effect that can hold the latest information. In addition, when the terminal A requests traffic information of the n6 point which is the direction of its destination to the traffic information collecting device 200, the traffic information collecting device 200 provides the terminal A6 with the traffic information received from the terminal C. can do.

4 is a block diagram schematically showing the configuration of a speed information providing terminal according to another embodiment of the present invention. As shown, the speed information providing terminal 300 according to the present invention includes a GPS receiver 310 for receiving a GPS signal, a data storage unit 340 for storing data, and a communication unit for performing data communication with another terminal ( 320, a data generator 332 for generating traffic information data including a measurement time, a measurement area, and measured speed information of the vehicle according to the received GPS signal, and storing the traffic information data in the data storage unit 340; An information requesting unit 334 for requesting traffic information to another terminal through 320, an acquiring unit 434 for acquiring traffic information data of a specific region from another terminal in response to the request, and another communication unit 320. And a control unit 330 including an information providing unit 338 which receives the request data from the terminal and thus provides the terminal with the latest traffic information data stored in the data storage unit 340.

The GPS receiver 310, the data storage 340, the communicator 320, the controller 330, and the data generator 332 of the speed information providing terminal according to another embodiment are included in the above-described embodiment. The description overlapping with the same as is omitted.

The information requesting unit 334 of the control unit 330 requests traffic information data from another terminal 300 mounted in another vehicle that is located in a short range.

The obtaining unit 434 receives the traffic information data received through the communication unit 320 from another terminal. In the present embodiment, the traffic information data includes measurement time information, measurement area information, and measurement speed information as described above. The acquirer 434 may roughly grasp traffic information at a specific time at a specific location according to information received from another terminal. In addition, the acquirer 434 may obtain information from a plurality of terminals, and may collect traffic information for a specific region by analyzing the obtained information.

The information providing unit 338 receives the request data received through the communication unit 320 from another terminal, and provides the terminal with the latest traffic information data stored in the data storage unit 340 corresponding to the request data.

Accordingly, it is possible to identify and collect traffic information data by performing communication between different terminals without an external separate device. In addition, there is no need to install a separate speed sensing device, there is an effect that can obtain the necessary traffic information without restriction to the environment through a peer-to-peer communication method without a device for providing a service.

Additionally, the speed information providing terminal 300 according to the present invention provides traffic information data including visual information of the traffic information data measured according to a request message received from another terminal, and the obtaining unit 434 is a communication unit 320. Compared with the measurement time information included in the at least one traffic information received through the) to receive the recently measured traffic information data.

For example, when a plurality of pieces of traffic information data are obtained from a plurality of vehicles approaching from the other lane, the latest information is provided by comparing the measurement time with respect to the traffic volume information of the same area. At this time, the information acquisition time is time information when the GPS receiver of the information providing terminal 300 mounted in the other vehicle receives the GPS signal including the corresponding data. Accordingly, even if the vehicle information is provided from the plurality of information providing terminals 300, only the latest information is provided, so that the traffic situation can be more accurately identified. However, the present invention is not limited thereto and may be implemented to grasp traffic information by receiving a plurality of data and calculating an average of speed values included in the data.

Referring to FIG. 5, A and B can communicate between terminals at n2 points. As described above, the terminal A passes through n1, n2, n3, n4, and generates data as traffic information from location information, time information, and speed information at each point based on the GPS signal received at the corresponding point. Stored in the unit 340. The other B terminal moves along the paths n10, n9, n8, n7, n2, and n1, and stores the traffic information data measured at the corresponding point in the data storage unit 340.

Assuming that A and B meet at point n2, A sends traffic information request data for area n7 to B. B extracts the traffic information data of n7 points among his own data and provides it to A. Similarly, B can grasp the traffic state at point n1 from A in advance. At this time, A may reach the destination by taking the route of n3 instead of n7 when the traffic condition of n7 is complicated and determined. The speed information providing terminal according to another embodiment of the present invention can communicate traffic information data between terminals, so that traffic information of a road can be grasped to a destination in the future regardless of region.

As described in detail above, according to the present invention, it is possible to grasp the traffic traffic information of the road without a separate device such as a speed sensor or CCTV installed on the road, thereby significantly reducing installation and maintenance costs.

In addition, as well as the traffic volume information in the area to which the vehicle belongs, there is an effect that can determine in detail the destination information of the remote and all the traffic information of the destination intermediate point desired by the user in detail.

Furthermore, the traffic information providing system according to the present invention receives the destination information from the vehicle at a certain point, calculates the estimated time required by reflecting the traffic information to the corresponding destination, and provides the user with the information about the time required by reflecting the traffic volume in real time. It can be effective.

Additionally, the traffic information providing apparatus according to the present invention is capable of exchanging traffic volume information held between the mounted vehicles so that traffic information can be provided through short-range communication with other vehicles in a short distance even in a poor communication environment. There is. In addition, there is an effect that can be provided traffic information anywhere in the desired location. In other words, even in a region without a separate AP, it is possible to receive necessary traffic information, and may include recent traffic information of a wide area within the speed information providing terminal itself.

Accordingly, it is possible to identify and collect traffic information data by performing communication between different terminals without an external separate device. In addition, there is no need to install a separate speed sensing device, and even without a device for providing a service, it is possible to obtain necessary traffic information through the peer-to-peer communication method without restriction on the environment.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, but this is only illustrative, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (12)

delete In the traffic information collecting device for collecting traffic information by region, and transmitting to the situation management server that manages the database of the wide-area traffic information, A communication unit; A memory unit; A data receiver for receiving traffic information for each region from at least one terminal mounted on the vehicle through the communication unit; A traffic information integration unit for processing the received traffic information data to generate integrated traffic information for each region and storing the traffic information in the memory unit; A data updater which further receives traffic information from another traffic information collecting device and integrates it with its own traffic information and stores it in the memory unit; An information providing unit providing at least a part of the stored integrated traffic information to the terminal through the communication unit according to a request from the terminal; Traffic information collection device comprising a. The method of claim 2, wherein the data update unit: When the traffic information of the area requested by the terminal is insufficient, the traffic information collecting device, characterized in that for requesting the traffic information of the local area to another traffic information collecting device, and updating the traffic information of the local area of the memory unit with the received traffic information. According to claim 3, wherein the traffic information collecting device is: A relay unit which receives the traffic information request data of a specific region from the first traffic information collecting device and transmits the request data to the second traffic information collecting device; Traffic information collection device further comprising a. According to claim 4, wherein the traffic information integration unit: A speed calculator configured to calculate an average moving speed by applying a weight to recently obtained traffic information data according to the acquisition time information of the traffic information data received from the terminal; Traffic information collection device further comprising a. The method of claim 5, wherein the traffic information integration unit: A time calculation unit that calculates the estimated time required to receive the destination from the terminal by applying the information according to the integrated regional traffic information and provides the result to the terminal; Traffic information collection device further comprising a. delete A GPS receiver for receiving a GPS signal; A data storage unit for storing data; A communication unit including a terminal communication unit performing data communication with another terminal, and a device communication unit performing data communication with an external traffic information collecting device; A data generator configured to generate traffic information data including a measurement time, a measurement region, and measured speed information of the vehicle according to the received GPS signal and to store the data in the storage; and the data generated by the data generator The information collecting unit for transmitting to the traffic information collecting device through the communication unit, receiving the traffic information of the region from the traffic information collecting device, and through the terminal communication unit according to the reception state of the traffic information received from the traffic information collecting device. A control unit including an information requesting unit requesting traffic information to another terminal, and an information providing unit configured to receive request data from another terminal through the terminal communication unit and to provide the terminal with the latest traffic information stored in the data storage unit accordingly. ; Speed information providing terminal comprising a. The method of claim 8, wherein the information collecting unit: Receiving traffic information periodically from the traffic information collection device, if there is no response for a predetermined time, the information request unit on-vehicle speed information providing terminal, characterized in that for transmitting a traffic request message to the other terminal. The method of claim 8, wherein the information providing unit: According to a request message received from another terminal, traffic information including visual information obtained from the traffic information providing apparatus is provided, The terminal is a vehicle-mounted speed information providing terminal, characterized in that for receiving the recently obtained information by comparing the information acquisition time included in the at least one traffic information received from the other terminal. A GPS receiver for receiving a GPS signal; A data storage unit for storing data; A communication unit which performs data communication with another terminal; A data generator for generating traffic information data including a measurement time, a measurement area, and measured speed information of the vehicle according to the received GPS signal, and storing the traffic information data in the data storage unit; A requesting information requesting unit, an acquiring unit for acquiring traffic information data of a specific region from another terminal corresponding to the request, and receiving request data from another terminal through the communication unit, and thus storing the latest data stored in the data storage unit. A control unit including an information providing unit for providing traffic information data to a corresponding terminal; Speed information providing terminal comprising a. The method of claim 11, wherein the information providing unit: According to a request message received from another terminal, traffic information data including measurement time information of the traffic information data is provided, The obtaining unit: And comparing recently measured times included in at least one traffic information data received through the communication unit to receive recently measured traffic information data.

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