KR20110077652A - System and method for providing public traffic information for electric vehicle - Google Patents

Abstract

PURPOSE: A system and method for providing public traffic information for an electric vehicle are provided to supply accurate traffic information in real time through a power transmission system for the electric vehicle to be buried. CONSTITUTION: In a system and method for providing public traffic information for an electric vehicle, a vehicle magnetic field communications module(110) transmits the travel information of vehicles to road magnetic field communications module buried in the road. . A power supply segment(120) collects the traffic information including the volume of traffic flow the speed of the vehicle by measuring the passing time of the power supply segment. A power line communications gateway(130) receives the traffic information from a plurality of power supply segment in real time. A traffic analyzer server(140) receives the traffic information from the power line communication gateway and processes the speed of the vehicle and the volume of the traffic flow.

Description

Road traffic information providing system and method for electric vehicles {SYSTEM AND METHOD FOR PROVIDING PUBLIC TRAFFIC INFORMATION FOR ELECTRIC VEHICLE}

The present invention relates to a system and method for providing road traffic information for an electric vehicle, and more particularly, to a system and method for providing road traffic information for an electric vehicle capable of providing accurate road traffic information in real time.

As the penetration rate of vehicles increased rapidly, the number of vehicles increased exponentially, while the penetration rate of roads did not reflect this. Accordingly, the driver of the vehicle tries to bypass or avoid a congestion section or a congested area by grasping the road condition from the current location to the destination to reach the destination. In order to obtain such road traffic information, data about the current location and destination of each vehicle is input and processed by a central control center, thereby predicting the current road situation and the future traffic situation.

1 is a block diagram of a conventional road information providing system. Referring to FIG. 1, a vehicle 20 passing through an intersection receives a first beacon from the first beacon providing apparatus 11 installed at the intersection, and then receives a second beacon from the second beacon providing apparatus 12 at the next intersection. Traffic time can be estimated by sending the time to the central control center (30). By using such a road information providing system, it is possible to provide traffic information of a wide area unit and a section unit to a vehicle.

However, in the road information providing system shown in FIG. 1, it is possible to collect only the information of the place where the beacon is installed, and it is difficult to provide accurate and detailed road information in the place where the beacon is not installed. As the road information is updated, it is difficult to check the road information in real time.

In addition, it is difficult to confirm accurate vehicle speed information according to the location where the beacon providing apparatus is installed and the driving frequency of the vehicle in which the beacon transmitter is installed.

In order to improve such a problem, there are proposals for reflecting information of road construction and traffic broadcasting stations, or installing video cameras at major road sections to reflect video information. However, road information is not accurately reflected in real time. It is true.

Meanwhile, hybrid cars using both oil and electricity are currently in commercialization, and electric vehicles using electricity as the power source are also being actively researched. Increasingly, cars powered by petroleum will disappear, and cars powered by electricity are expected to become common in the near future. Therefore, electric vehicle technology and power line communication (PLC) technology can be combined, the development of road transport providing technology suitable for such an electric vehicle is required.

An object of the present invention is to provide a road traffic information providing system for an electric vehicle using a power line communication system for an electric vehicle to be buried in the future.

Another object of the present invention is to provide a road traffic information providing method for an electric vehicle using a power communication system for an electric vehicle.

The object of the present invention is not limited to the above-mentioned object, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

Road traffic information providing system for an electric vehicle according to an aspect of the present invention for achieving the above object is a road magnetic field communication module embedded in the road using the magnetic field communication of the driving information of the vehicle traveling on the road capable of power supply Power supply segment for collecting road traffic information including vehicle driving speed and traffic volume by measuring vehicle magnetic field communication module to transmit and vehicle driving information transmitted from road magnetic field communication module, power supply segment passing time and number of vehicles passing through per hour And a road traffic information analysis server for processing road speed and traffic information into TPEG information by receiving road traffic information from a power line communication gateway and a power line communication gateway that receives road traffic information collected from a plurality of power supply segments in real time. It includes.

The electric vehicle is characterized in that the on-line electric vehicle (OLEV).

The road traffic information providing system for an electric vehicle according to the present invention may further include an inverter embedded in a road and supplying power to an on-line electric vehicle traveling on a road.

The driving information may include information such as a vehicle ID and a state of charge of the battery.

The power supply segment receives the road traffic information from the vehicle magnetic field communication module using the magnetic field communication, receives the road traffic information from the road magnetic field communication module and the road magnetic field communication module that transmits the TPEG information to the vehicle magnetic field communication module, and receives the TPEG information. It may include a power line communication module for transmitting to the magnetic field communication module.

The power line communication module may transmit the road traffic information collected through the transmission power line to the power line communication gateway, and receive TPEG information through the reception power line.

The magnetic field communication module may be disposed at the start or end point of the power supply segment having a predetermined length.

The length of the power supply segment may be 25m to 100m.

A plurality of power supply segments may be embedded in a straight line.

The power line communication module and the power line communication gateway included in the power supply segment may perform power line communication through a power line embedded in a road.

The road traffic information analysis server may analyze a vehicle driving speed and a traffic volume in units of 100m and transmit the same to a power line communication gateway.

In accordance with another aspect of the present invention, there is provided a method of providing road traffic information for an electric vehicle, comprising: transmitting driving information of a vehicle traveling on a road capable of supplying power to a road magnetic field communication module embedded in a road using magnetic field communication; Collecting road traffic information by measuring vehicle driving information, power supply segment passing time and number of vehicle passages per hour, and collecting and processing road traffic information measured from a plurality of power supply segments and processing the TPEG information. Transmitting the TPEG information to the vehicle using power line communication and magnetic field communication.

The vehicle may be powered from an inverter embedded in the road.

The driving information may include a vehicle ID and a state of charge of the battery.

The collecting of road traffic information may include receiving driving information from a vehicle using magnetic field communication, including driving speed and traffic volume collected by measuring driving information of the vehicle, power supply segment passing time, and number of vehicle passing. The road traffic information may be transmitted to a power line communication gateway using power line communication.

Specific details of other embodiments are included in the detailed description and the drawings.

According to the present invention, more detailed and accurate road traffic information can be provided to a vehicle in real time by utilizing a power line communication system for an electric vehicle to be buried in the future.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.

Figure 2a is a block diagram of a road traffic information providing system for an electric vehicle according to an embodiment of the present invention. FIG. 2B is a schematic block diagram of a power line communication system through a power line in the paint traffic information providing system for an electric vehicle shown in FIG. 2A.

2A and 2B, a road traffic information providing system for an electric vehicle according to an embodiment of the present invention includes a vehicle magnetic field communication module 110, a power line communication module 121, and a road magnetic field communication module 122. The power supply segment 120, the power line communication gateway 130 and the road traffic information analysis server 140 is included. On the other hand, the road traffic information providing system for an electric vehicle according to the present invention may include a power line (Power Line, 200) is buried in the lower part of the road to use power line communication.

The vehicle magnetic field communication module 110 may perform bidirectional communication with the road magnetic field communication module 122 embedded in the road. The data to be transmitted is converted into a predetermined magnetic field communication protocol packet, and the analog data is converted through a digital signal processing after passing through the MAC layer to generate an induced current through a coil to transmit the magnetic field signal. The vehicle magnetic field communication module 110 transmits the driving information of the vehicle, for example, the vehicle ID, the current state of charge, and the remaining amount of battery information, to the road magnetic field communication module 122 on the magnetic field signal. The magnetic field communication module may be a magnetic field communication modem.

The power supply segment 120 includes a power line communication module 121 and a road magnetic field communication module 122. The power supply segment 120 may be segmented into a certain length and embedded in the road. The constant length may be implemented within 25m to 100m. The power line communication module 121 and the road magnetic field communication module 122 may be installed at the start point or the end point at which the power supply segment 120 starts.

The magnetic field communication module 121 receives driving information, for example, a vehicle ID, which is transmitted by a vehicle traveling on the road in a magnetic field signal. The received vehicle ID is transmitted to the power line communication module 122 for transmission to the road traffic information analysis server 140 through a power line embedded in the lower part of the road. On the other hand, the magnetic field communication module 121 receives the driving information of the wide area unit or 100m unit analyzed by the road traffic information analysis server 140 from the power line communication module 122 through the magnetic field communication through the vehicle magnetic field communication module 110 To send).

When the power line communication module 122 transmits the vehicle ID and the like collected through the road magnetic field communication module 121 to the power line communication module 122, the power line communication module 122 loads the vehicle ID information on the power line 200. Transmission to the power line communication gateway 130.

The power line communication gateway 130 transmits driving information of the vehicle including the vehicle ID information provided through the power line 200 to the road traffic information analysis server 140. The power supply segment 120 may be segmented on the road in a predetermined length, and thus a plurality of segments may be arranged. Various driving information of vehicles traveling on the plurality of power supply segments 120 may be transmitted through the power line communication gateway 130. The road traffic information analysis server 140 may be transmitted.

The road traffic information analysis server 140 includes vehicle IDs of vehicles traveling on the power supply segment 120 from the power line communication gateway 130, time information passing through the power supply segment 120, and power supply segment 120 per hour. You are provided with information such as the number of vehicles passing through the above. By using such information, road traffic information such as driving speed and traffic volume of the vehicle passing through the power supply segment 120 may be analyzed and provided.

When the road traffic information analysis server 140 calculates the traveling speed, the distance between the first power supply segment and the second power supply segment may be known in the process of embedding the power supply segment 120 on the road. Distance information between the road magnetic field communication module installed in the supply segment and the magnetic field communication module installed in the second power supply segment can be known in advance.

Therefore, by collecting only the time information passing through the first power supply segment and the time information passing through the second power supply segment, the driving speed of the vehicle passing through the power supply segment 120 may be calculated in real time. In particular, when the length of the power supply segment 120 is 100m, it is possible to calculate the vehicle traveling speed in units of 100m in real time, and when the length of the power supply segment 120 is 45m, more detailed vehicle driving speed in real time. It can be provided to the vehicle.

Meanwhile, the road traffic information analysis server 140 analyzes the driving speed and the traffic volume information of the vehicle, processes the TPEG information, and provides the vehicle magnetic field communication module 110 through the power line communication gateway 130. can do.

Figure 3 shows an example of a road traffic information providing system for an electric vehicle according to an embodiment of the present invention.

Referring to FIG. 3, a plurality of power supply segments may be embedded in a road according to an embodiment. For example, in the case of a four-lane road, power supply segments may be arranged in a line spaced apart by a predetermined interval in each lane. In addition, at least one power line communication gateway that receives driving information of the vehicle from power supply segments arranged in each lane may be installed in each lane. In FIG. 3, for convenience of description, it is assumed that one power line communication gateway is installed in each lane on an n-lane road, and one and two lanes of the n-lane road will be described.

Power supply segments 410, 420, 430 are embedded in the road in the first lane, and there is a power line communication gateway 600_1 that receives driving information of a traffic vehicle through power line communication from each power supply segment 410, 420, 430. 1-1 power supply segment 410 includes power line communication module 411 and road magnetic field communication module 412, and 1-2 power supply segment 420 includes power line communication module 421 and road magnetic field communication module ( 422, and 1-3 power supply segment 430 includes a power line communication module 431 and a road magnetic field communication module 432. Each power line communication module transmits the driving information of the vehicle passing through the power supply segment to the power line communication gateway 600_1 through the transmission power line 440 and receives the TPEG information transmitted from the road traffic information analysis server 700. It may be received through the power line 450.

When the first vehicle passes through the 1-2 power supply segment 420, the driving information of the first vehicle including the ID of the first vehicle is transmitted to the road magnetic field communication module 422 through the magnetic field signal. The first vehicle driving information such as the first vehicle ID and the time information when the first vehicle passes the 1-2 power supply segment 420 is transmitted to the power line communication module 421, and then the power line through the transmission power line 440. It is transmitted to the communication gateway 600_1, this information is transmitted to the road traffic information analysis server 700.

When the first vehicle travels by a predetermined distance and travels on the 1-3 power supply segment 430, when passing through the road magnetic field communication module 432, the ID of the first vehicle, 1-3 as described above. The driving information of the first vehicle such as the passing time of the power supply segment 430 may be transmitted to the road magnetic field communication module 432 and eventually provided to the road traffic analysis server 700.

The road traffic information analysis server 700 includes distance information between the 1-2 power supply segment 420 and the 1-3 power supply segment 430 measured in advance in embedding the power supply segment on the road and the first vehicle. The traveling speed of the first vehicle may be calculated using the time passed through the 1-2 power supply segment 420 and the time information passed through the 1-3 power supply segment 430. If the distance between the 1-2 power supply segment 420 and the 1-3 power supply segment 430 is 100 m, 100 m units of the first vehicle may be provided using the road traffic information providing system for the electric vehicle according to the present invention. Detailed driving information can be provided.

On the other hand, if the cumulative number of vehicles passing through each power supply segment through the method as described above, it is possible to calculate the number of vehicles passing through the power supply segment per hour can also be used for traffic analysis.

Similarly to the first vehicle 310, the speed information and the traffic volume information of the second vehicle may be calculated for the second vehicle 320 traveling in the two lanes. On the other hand, assuming that the second vehicle 320 has passed through the three power supply segments 510, 520, 530, when the second vehicle 320 passes through the 2-1 power supply segment 510 and passes through the 2-2 power supply segment 520. While the driving speed is 45 km / h, when passing through the 2-3 power supply segment 530, it can be calculated as 40 km / h. When the length of each power supply segment 510, 520, 530 is 50 m, 50 m It is possible to calculate and provide driving speed information of the second vehicle in units.

4 is a flowchart illustrating a method of providing road traffic information for an electric vehicle according to an embodiment of the present invention.

Referring to FIG. 4, the method for providing road traffic information for an electric vehicle according to an embodiment may include driving information of a vehicle traveling on a road on which power can be supplied, for example, a vehicle ID, a battering charging state, a power supply segment passing time, and the like. To the communication device embedded in the road (S110). The communication device may be a magnetic field communication modem included in the power supply segment. The road magnetic field communication module collects road traffic information by measuring the vehicle ID, the power supply segment passing time, and the number of vehicle passages per hour (S120). The measured road traffic information is transmitted to the road traffic information analysis server through power line communication (130).

In the road traffic information analysis server, the transmitted road traffic information is analyzed and processed into TPEG information (S140). The road traffic information is processed into TPEG information by analyzing a traveling speed and a traffic volume of a vehicle transmitted from a vehicle traveling on a power supply segment. The processed TPEG information is transmitted to the vehicle magnetic field communication module inside the vehicle via the power line communication module and the magnetic field communication module embedded in the road (S150).

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is indicated by the scope of the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention. Should be interpreted.

1 is a block diagram of a conventional road information providing system.

Figure 2a is a block diagram of a road traffic information providing system for an electric vehicle according to an embodiment of the present invention.

 FIG. 2B is a schematic block diagram of a power line communication system through a power line in the paint traffic information providing system for an electric vehicle shown in FIG. 2A.

 Figure 3 shows an example of a road traffic information providing system for an electric vehicle according to an embodiment of the present invention.

4 is a flowchart illustrating a method of providing road traffic information for an electric vehicle according to an embodiment of the present invention.

`` Explanation of symbols for main parts of drawings ''

100: road traffic information providing system for electric vehicles

110: vehicle magnetic field communication module 120: power supply segment

121: road magnetic field communication module 122: power line communication module

130: power line communication gateway 140: road traffic information analysis server

200: power line

Claims (15)

A vehicle magnetic field communication module for transmitting driving information of a vehicle traveling on a road capable of supplying power to a road magnetic field communication module embedded in the road using magnetic field communication; Power supply segment for collecting the road traffic information including the vehicle driving speed and the traffic by measuring the driving information, the power supply segment passing time and the number of vehicle passing per hour transmitted from the road magnetic field communication module A power line communication gateway configured to receive the road traffic information collected from the plurality of power supply segments in real time; And The road traffic information analysis server receiving the road traffic information from the power line communication gateway and processing the driving speed and the traffic volume information of the vehicle into TPEG (Transport Protocol Expert Group) information. Road traffic information providing system for an electric vehicle comprising a. The method of claim 1, wherein the electric vehicle Road traffic information system for an electric vehicle, characterized in that the on-line electric vehicle (OLEV). The method of claim 2, The road traffic information providing system for an electric vehicle is embedded in the road, further comprising an inverter for supplying power to the on-line electric vehicle running on the road. The method of claim 1, wherein the driving information Road traffic information providing system for an electric vehicle that includes the vehicle ID, the state of charge of the battery. The method of claim 1, wherein the powered segment is A road magnetic field communication module for receiving the road traffic information from the vehicle magnetic field communication module using magnetic field communication and transmitting the TPEG information to the vehicle magnetic field communication module; And A power line communication module receiving the road traffic information from the road magnetic field communication module and transferring the TPEG information to the magnetic field communication module Road traffic information providing system for an electric vehicle comprising a. The method of claim 5, wherein the power line communication module And transmitting the road traffic information collected through a transmission power line to the power line communication gateway, and receiving the TPEG information through a reception power line. The method of claim 1, wherein the magnetic field communication module Road traffic information providing system for an electric vehicle that is disposed at the start or end of the power supply segment having a predetermined length. The method of claim 7, wherein The predetermined length is 25m to 100m road traffic information providing system for an electric vehicle. The method of claim 1, And a plurality of power supply segments are embedded in the road and arranged in a straight line. The method of claim 1, A power line communication module and a power line communication gateway included in the power supply segment perform power line communication through a power line embedded in the road. According to claim 1, wherein the road traffic information analysis server The road traffic information providing system for an electric vehicle that analyzes the vehicle driving speed and the amount of traffic in 100m unit and transmits it to the power line communication gateway. Transmitting driving information of a vehicle traveling on a road capable of supplying power to a road magnetic field communication module embedded in the road using magnetic field communication; Measuring road traffic information by measuring driving information of the vehicle, passing time of a power supply segment, and passing number of vehicles per hour; Collecting the measured road traffic information from a plurality of power supply segments and processing the measured road traffic information into TPEG information; And Transmitting the processed TPEG information to the vehicle using power line communication and magnetic field communication. Road traffic information providing method for an electric vehicle comprising a. The vehicle of claim 12, wherein the vehicle is Road traffic information providing method for receiving electric power from the inverter embedded in the road. The method of claim 12, wherein the driving information Road traffic information providing method for an electric vehicle that includes a vehicle ID, the state of charge of the battery. The method of claim 12, wherein collecting the road traffic information Receiving driving information from the vehicle using magnetic field communication; And Transmitting road traffic information including vehicle driving speed and traffic volume by measuring driving information of the vehicle, power supply segment passing time, and vehicle passing number to a power line communication gateway using power line communication; Road traffic information providing method comprising the electric vehicle.

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