KR20030024259A - Electronic toll collection system - Google Patents

Abstract

PURPOSE: An electronic toll collection system is provided which increases a transmission distance and a transmission rate, and assures accuracy and reliability by reducing EMI(Electromagnetic Interference) phenomenon and noise generation. CONSTITUTION: The electronic toll collection system(100) includes a vehicle sensing unit(110), an antenna unit(120), a traffic violation vehicle photographing unit(130) and a vehicle lane control unit(310) installed in a business center server(300). The vehicle sensing unit communicates with the vehicle lane control unit through a HPCF(Hard Polymer Clad Fiber), and senses entrance of vehicles and transmits vehicle information of a corresponding vehicle. The antenna unit communicates with the vehicle lane control unit through HPCF, and transmits travelling information from an OBU(On Board Unit)(210) to the vehicle lane control unit. The traffic violation vehicle photographing unit communicates with the vehicle lane control unit through HPCF, and photographs a traffic violation vehicle. And the vehicle lane control unit communicates with the above units through HPCF, and transmits vehicle information and traveling information to the business center server, and transmits a photographing signal as to the traffic violation vehicle to the traffic violation vehicle photographing unit, and makes to collect tolls from a SC(Smart Card)(220) in the vehicle.

Description

Road Toll Collection System {Electronic Toll Collection System}

The present invention relates to a road toll collection system, and is related to an ETCS (Electronic Toll Collection System) installed in a toll road toll road to automatically collect paint tolls.

As a technology related to a conventional road toll collection system, Japanese Patent Laid-Open No. 2000-56488 (2000.09.15), Japanese Patent Laid-Open No. 2000-73249 (2000.12.05), and Japanese Patent Laid-Open No. 2000-17579 ( 2000.03.25) and Japanese Patent Laid-Open No. 2001-35921 (2001.05.07).

The system outline of the conventional road toll collection system is shown in FIG.

1 is a schematic diagram of a conventional road toll collection system.

As shown in the figure, the conventional road toll collection system 10 generally includes a vehicle detecting unit 11, an antenna unit 12, a violating vehicle photographing unit 13, and a lane control unit 14. It is configured by.

The vehicle detecting unit 11 is in close communication with the lane control unit 14 via a copper wire in the RS-232C or RS-422C method, is installed in the access road of each vehicle of the toll gate to detect whether the vehicle is entered, the corresponding entry Receives vehicle information of the vehicle and transmits it to the lane controller 14.

The antenna unit 12 is in close communication with the lane control unit 14 via a copper wire in an RS-232C or RS-422C manner, and is installed at an entry path of each vehicle of the toll gate and installed in an inside of the entry vehicle 20. On board unit (21) receives the driving information and transmits it to the lane control unit (14).

The violating vehicle photographing unit 13 communicates with the lane control unit 14 at a short distance through a copper wire in an RS-232C or RS-422C manner, and is installed at an entrance of each vehicle of the toll gate to receive a recording signal for the violating vehicle. Shoot the offending vehicle.

The lane control unit 14 is in close communication with the devices via a copper wire in the RS-232C or RS-422C manner, and the vehicle from the vehicle detecting unit 11 and the antenna unit 12 installed in the access road of each vehicle of the toll gate. Receives information and driving information and transmits it to the sales office server 30, transmits a shooting signal for the violation vehicle received from the sales office server 30 to the violation vehicle shooting unit 13, the sales office server 30 Toll charge signal according to the driving information received from the signal to the OBU 21 of the vehicle 20 through the antenna unit 12 to collect the charge from the SC (Smart Card) 22 in the vehicle. .

Therefore, when the vehicle enters the toll gate, the vehicle detecting unit 11 detects whether the vehicle enters, receives the vehicle information of the corresponding vehicle, and receives the vehicle control unit connected to the copper wire by RS-232C or RS-422C method ( 14), and receives the driving information from the OBU (On Board Unit) 21 installed in the inside of the vehicle 20 through the antenna unit 12 through the copper wire in the RS-232C or RS-422C method Transfer to the lane control unit 14 is connected.

The lane control unit 14 transmits the vehicle information and the driving information received from the vehicle detecting unit 11 and the antenna unit 12 to the office server 30 through the copper wire in the RS-232C or RS-422C method, The office server 30 searches the database from the received vehicle information to determine whether the vehicle is a violation vehicle, generates a photographing signal for the violation vehicle, calculates the road usage fee of the vehicle from the driving information, and collects the toll signal. Create

The photographing signal and the toll collection signal are transmitted from the office server 30 to the lane control unit 14 through a copper wire in an RS-232C or RS-422C manner, and the lane control unit 14 receives the toll signal. To the antenna unit 12 through a copper wire in RS-232C or RS-422C method, and transmits the photographing signal to the violating vehicle photographing unit 13 through a copper wire in RS-232C or RS-422C method. .

The antenna unit 12 collects a charge from the SC (Smart Card) 22 in the vehicle by signaling the charge collection signal to the OBU 21 of the vehicle using wireless communication such as RF, and the violation vehicle photographing unit. (13) photographs the violation vehicle according to the photographing signal received from the lane control unit 14 via the copper wire in the RS-232C or RS-422C manner.

However, the above-mentioned conventional technology transmits and receives data through copper wire in RS-232C or RS-422C method, so the transmission distance (RS-232C has a transmission distance of about 100m and RS-422C has a transmission distance of about 1Km) is short. EMI (Electro Magnetic Interference), which is a phenomenon in which the speed (RS-232C or RS-422C has a transmission speed of 1 to 2 Mbps) is slow and electromagnetic waves directly radiated or conducted from an electric or electronic device interfere with the electromagnetic wave reception function of another device. There was a problem of high probability, high noise, and low accuracy and reliability.

The present invention has been invented to solve the problems described above, by using a hard polymer clad fiber (HPCF) as a data transmission path, by configuring the lane control unit in the sales office server according to the increase in the transmission distance according to the HPCF characteristics Its purpose is to increase the transmission distance and transmission speed, to ensure accuracy and reliability by reducing the occurrence of EMI and noise, and to provide a long service life toll collection system.

1 is a schematic diagram of a conventional road toll collection system

2 is a block diagram of a road toll collection system according to the present invention.

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

10, 100: road toll collection system 11, 110: vehicle detection unit

12, 120: antenna unit 13, 130: violating vehicle photographing unit

14, 310: lane control unit 20, 200: vehicle

21, 210: OBU 22, 220: SC

30, 300: office server 400: central management server

According to an aspect of the road toll collection system according to the present invention for achieving the above object, the road toll collection system according to the present invention is installed in the access road of each vehicle of the toll gate to detect the entry of the vehicle and the A vehicle detecting unit for receiving vehicle information; An antenna unit installed at an access road of each vehicle of the toll gate and receiving driving information from an onboard unit (OBU) installed inside the entrance vehicle; A violation vehicle photographing unit installed at an entrance of each vehicle of the toll gate and photographing the violation vehicle upon receiving a photographing signal for the violation vehicle; Receives vehicle information and driving information from the vehicle detecting unit and the antenna unit installed in each access road of the toll gate and transmits the vehicle information and the driving information to the branch office server, and transmits a photographing signal for the violation vehicle received from the branch server to the violating vehicle photographing unit. Toll road toll road including a lane control unit for collecting the charge from the SC (Smart Card) in the vehicle by signaling the toll collection signal according to the driving information received from the sales office server to the OBU of the vehicle through the antenna unit In the ETCS (Electronic Toll Collection System) installed in the toll to automatically collect the road toll, using the HPCF (Hard Polymer Clad Fiber) as the data transmission path between the devices, according to the increase in the transmission distance according to the HPCF characteristics The said lane control part is comprised in the office server, It is characterized by the above-mentioned.

According to an additional aspect of the road toll collection system according to the present invention, the road toll collection system according to the present invention is characterized in that the HPCF transmits and receives data according to a WavelengthDivision Multiplexing method.

According to an additional aspect of the road toll collection system according to the present invention, the road toll collection system according to the present invention is characterized in that the HPCF transmits and receives data according to a Space Division Multiplexing method.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce the present invention.

2 is a block diagram of a road toll collection system according to the present invention.

As shown, the road toll collection system 100 according to the present invention is the vehicle detection unit 110, the antenna unit 120, the violating vehicle photographing unit 130 and the sales office installed in each vehicle entrance of the toll gate It is configured to include a lane control unit 310 is installed in the server (300).

The vehicle detecting unit 110 communicates with the lane control unit 310 through a hard polymer clad fiber (HPCF), and is installed in an access road of each vehicle of the toll gate to detect whether the vehicle has entered, and vehicle information of the corresponding vehicle. Receives it and transmits it to the lane controller 310.

The antenna unit 120 communicates with the lane control unit 310 through a hard polymer clad fiber (HPCF), and is installed in an entry path of each vehicle of the toll gate and is installed in the entry vehicle 200. Receives the driving information from the 210 and transmits it to the lane controller 310.

The violating vehicle photographing unit 130 communicates with the lane control unit 310 through a hard polymer clad fiber (HPCF), and is installed at the entrance of each vehicle of the toll gate to photograph the violating vehicle upon receiving a recording signal for the violating vehicle. do.

The lane control unit 310 is installed in the office server 300 and communicates with the devices through the HPCF (Hard Polymer Clad Fiber), the vehicle detection unit 110 and the antenna installed in the entrance of each vehicle of the toll gate Receives vehicle information and driving information from the unit 120 and transmits it to the sales office server 300, and transmits the shooting signal for the violation vehicle received from the sales office server 300 to the violation vehicle shooting unit 130 In addition, the toll collection signal according to the driving information received from the sales office server 300 is signaled to the OBU 210 of the vehicle through the antenna unit 120 to collect the charge from the SC (Smart Card) 220 in the vehicle. To be collected.

On the other hand, the road toll collection system according to the present invention is preferably the office server 300 installed in each region, for example, the central management server 400 by connecting to the central management server 400, such as the Korea Highway Corporation, respectively. It is possible to download and upgrade the database on the violating vehicle, upgrade, or transmit the fee information data related to the toll collection.

The HPCF transmits or receives data according to a Wavelength Division Multiplexing method that transmits and receives data using light having different wavelengths when transmitting and receiving data, or through the same path through physically separated channels. It is possible to transmit and receive data according to a Space Division Multiplexing method for transmitting and receiving data.

Therefore, when the vehicle enters the toll gate, the vehicle detecting unit 110 detects whether the vehicle has entered, receives vehicle information of the corresponding vehicle, and sends it to the lane control unit 310 connected through a hard polymer clad fiber (HPCF). The lane control unit 310 transmits and receives driving information from the OBU (On Board Unit) 210 installed inside the vehicle 200 through the antenna unit 120 and is connected through a hard polymer clad fiber (HPCF). To send).

The lane control unit 310 transmits the vehicle information and the driving information received from the vehicle detection unit 110 and the antenna unit 120 to the office server 300 through the HPCF (Hard Polymer Clad Fiber), the office server In operation 300, the database is searched from the received vehicle information to determine whether the vehicle is a violating vehicle, generating a photographing signal for the violating vehicle, and calculating a road usage fee of the vehicle from the driving information to generate a toll collection signal. .

The photographing signal and the toll collection signal are transmitted from the branch server 300 to the lane controller 310 through a hard polymer clad fiber (HPCF), and the lane controller 310 receives the toll signal received from the CFCF. (Hard Polymer Clad Fiber) is transmitted to the antenna unit 120, and the photographing signal is transmitted to the offending vehicle photographing unit 130 through a hard polymer clad fiber (HPCF).

The antenna unit 120 collects the charge from the SC (Smart Card) 220 in the vehicle by signaling the charge collection signal to the OBU 210 of the vehicle using wireless communication such as RF, and the violation vehicle photographing unit. In operation 130, the violating vehicle is photographed according to a photographing signal received through the hard polymer clad fiber (HPCF) from the lane controller 310.

Accordingly, the road toll collection system according to the present invention can increase the transmission distance and transmission speed by using HPCF (Hard Polymer Clad Fiber) as a data transmission path, and according to the HPCF characteristics, there is less possibility of EMI phenomenon and noise, and thus, accuracy and Reliability can be ensured, and as the transmission distance increases, the lane control unit can be installed in a remote office office server, thereby achieving the object of the present invention.

Road toll collection system according to the present invention as described above can increase the transmission distance and transmission speed compared to the conventional, long life, less EMI phenomenon and less noise occurrence can ensure accuracy and reliability, Since the control unit is installed in a remote branch office server, it is not exposed to the outside, so it is less likely to be damaged by rain, snow, and temperature.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that various modifications may be made therein without departing from the scope of the invention, which is covered by the following claims.

Claims (3)

A vehicle detection unit installed at an entrance path of each vehicle of the toll gate to detect whether the vehicle is entered and to receive vehicle information of the corresponding vehicle; An antenna unit installed at an access road of each vehicle of the toll gate and receiving driving information from an onboard unit (OBU) installed inside the entrance vehicle; A violation vehicle photographing unit installed at an entrance of each vehicle of the toll gate and photographing the violation vehicle upon receiving a photographing signal for the violation vehicle; Receives vehicle information and driving information from the vehicle detecting unit and the antenna unit installed in each access road of the toll gate and transmits the vehicle information and the driving information to the branch office server, and transmits a photographing signal for the violation vehicle received from the branch server to the violating vehicle photographing unit. Toll road toll road including a lane control unit for collecting the charge from the SC (Smart Card) in the vehicle by signaling the toll collection signal according to the driving information received from the sales office server to the OBU of the vehicle through the antenna unit In the ETCS (Electronic Toll Collection System), which is installed in the city and automatically collects paint tolls, The road toll collection system, characterized in that using the Hard Polymer Clad Fiber (HPCF) as a data transmission path between the devices, the lane control unit in the office server according to the increase in the transmission distance according to the HPCF characteristics. The method of claim 1, And the HPCF transmits and receives data according to a wavelength division multiplexing method. The method of claim 1, The toll collection system, characterized in that the HPCF transmits and receives data according to the Space Division Multiplexing method.