JP2005050248A - Automatic charge collecting system and on-vehicle unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ETC system to prevent the generation of erroneous charging or abnormal communication due to the reflected radio waves or leakage currents of inter-vehicle communication. <P>SOLUTION: The ETC on-mounted unit of a vehicle 36 traveling to the automatic charge collection lane of the tollgate of a pay road is provided with a light beacon 51 to transmit identification information stored by a lane controller 135 which controls the inter-vehicle communication of the automatic collection lane. When the vehicle 36 enters the automatic charge collecting lane, the ETC on-vehicle unit confirms the matching of the identification information stored after received from the light beacon 51 with the identification information stored in the lane controller 135, and executes inter-vehicle communication. Therefore, it is possible to prevent the inter-vehicle communication due to reflected radio waves or leakage currents, and to prevent the generation of erroneous charging or abnormal communication. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an automatic toll collection system (Electronic Toll Collection: ETC) that automatically charges a toll for a vehicle traveling on a toll road, and an in-vehicle device mounted on the vehicle, in particular, erroneous charging and abnormal communication. Is to prevent the occurrence of

  In recent years, ETC systems have been introduced on toll roads at various locations, and vehicles that can use this system can pass through toll gates on toll roads non-stop. In order to use the ETC system, an ETC vehicle-mounted device must be attached to the vehicle, an ETC card must be inserted into the vehicle-mounted device, and the vehicle must pass through the gate of an ETC lane equipped with a tollgate communication antenna. In the ETC in-vehicle device, information such as a vehicle number, a vehicle type, and a vehicle length described in the vehicle verification of the vehicle to which the ETC is mounted is registered (setup) in advance. Further, the ETC card is an IC card issued by a credit card company, and the ID of the passed gate and a record of fee collection are written.

  The composition of the ETC lane differs depending on the toll calculation method (flat rate system / distance system) and location conditions. In the case of a distance system that collects a fee according to the usage distance of the toll road, it has an entrance gate and an exit gate, and an entrance record (gate ID) is written on the ETC card at the entrance gate, A toll is charged according to the distance from the entrance gate. On the other hand, in the case of a flat fee system, a single fee is charged by a single gate.

  FIG. 12 shows an example of a flat fee ETC lane. This lane is provided with an antenna 31 used for radio communication (road-to-vehicle communication) with an ETC vehicle-mounted device on the lane, and an island 34 has a first vehicle detector S1, a first vehicle detector S1 that senses the passage of a vehicle by blocking light. 2 vehicle detector S2, 3rd vehicle detector S3 and 4th vehicle detector S4, roadside indicator 32 displaying "passable" or "stop" for vehicle 36 passing through the lane, and road-to-vehicle communication When the toll collection process is completed, the start bar 33 is opened, and when the toll collection process is not completed, the start controller 33 that keeps the blocking bar closed and the roadside radio is built in. And a lane control device 35 that controls the operation of the ETC lane based on the detection results of the vehicle detectors S1 to S4.

As shown in FIG. 13, the lane control device 35 manages the position of the vehicle on the ETC lane, controls the operation of the start controller 33 and the roadside indicator 32, and executes a billing process. A communication control unit 351 that controls road-to-vehicle communication by the antenna 31 and an RF circuit 352 that performs signal modulation and demodulation are provided.
As shown in FIG. 14, the ETC in-vehicle device mounted on the vehicle 36 includes an IC card interface unit 41 into which an ETC card is inserted, a human interface (HMI) unit 45 operated by a user, and an in-vehicle antenna 44. A communication control unit 42 that controls road-to-vehicle communication performed through the communication circuit, an RF circuit 43 that modulates and demodulates signals, and an in-vehicle unit control unit 40 that controls the operation of the in-vehicle unit.

The operation of this ETC system is described in, for example, Patent Document 1 below. The lane control device 35 of this system starts road-to-vehicle communication with the in-vehicle device of the vehicle 36 by the roadside wireless device using the detection signal of the first vehicle detector S1 as a trigger. As a result, if the toll is successfully settled, “pass” is displayed on the roadside indicator 32, and the blocking bar of the start controller 33 is set to “open”. When the third vehicle detector S3 detects the vehicle 36, the display content of the roadside indicator 32 is erased, and when the fourth vehicle detector S4 detects the stern of the vehicle, the blocking bar of the start controller 33 is set to “ Return to the closed state.
On the other hand, if the vehicle 36 cannot be charged normally even when it reaches the position of the second vehicle detector S2, the vehicle 36 is determined to be “abnormal” or “non-ETC vehicle” and the roadside indicator 32 displays “ “Stop” is displayed, the blocking bar of the start controller 33 is kept “closed”, the vehicle is stopped, and charges are collected by another means (manual IC card, cash, etc.).

FIG. 15 shows a plan view of the ETC lane. The road-to-vehicle communication area 312 between the first vehicle detector S1 and the second vehicle detector S2 is set to a length of about 4 m into which one vehicle can enter, and the roadside antenna 31 is connected to the road-to-vehicle communication area 312. The directivity is narrowed down so that only the communication area 311 becomes. This is because if the communication area 311 extends beyond the road-to-vehicle communication area 312, not only the preceding vehicle 362 but also the ETC in-vehicle device of the subsequent vehicle 361 may enter the communication area 311. In this case, when the preceding vehicle 361 is a non-ETC vehicle and the following vehicle 362 is an ETC vehicle, the roadside antenna 31 communicates with the vehicle-mounted device of the following vehicle 361. As a result, the lane control device 35 enters the road-to-vehicle communication area 312. There is a risk that the existing preceding vehicle 362 may be misidentified as an ETC vehicle.
Thus, in the conventional ETC lane, the road-to-vehicle communication area 312 in which road-to-vehicle communication can be performed is limited, and this road-to-vehicle communication exists in the road-to-vehicle communication area 312 when a communication link is established between the road and vehicle. Judging by the vehicle.
JP 2000-231645 A

  However, in the conventional ETC lane, as shown in FIG. 16, the radio wave radiated from the roadside antenna 31 is reflected by the vehicle 362, the road surface 341, the island 34, etc., and the reflected wave is further reflected by the roof 410 or the like. A phenomenon of reaching the adjacent lane has been observed. FIG. 17 shows an example of the path of the reflected wave 314 in a plan view. It is known that the reflection of radio waves also occurs on the pillars of the roadside antenna 31, the display board, the side wall of the toll booth, etc., and the radio waves reach far away by further repeating the reflection.

  Such reflected waves may enable road-to-vehicle communication at the position of the reflection destination. For this reason, the premise of the ETC system that “road-to-vehicle communication is performed only by vehicles existing in the road-to-vehicle communication area” collapses, and an erroneous charge for charging the in-vehicle device of the non-target ETC vehicle occurs. An abnormal communication may be caused to upset regular road-to-vehicle communication.

  Further, as shown in FIGS. 18 and 19, in a toll gate where an entrance gate and an exit gate for distance control are provided adjacent to each other, for example, radio waves of the roadside antenna 31 of the entrance gate are transmitted to the vehicle 361 of this gate. In some cases, it may be reflected on the roof 410 and may reach the exit gate. When this reflected wave is received by the in-vehicle device of the ETC vehicle 362 entering the exit gate, and the ID information of the entrance gate is added to the entry record of the ETC vehicle 362, in regular road-to-vehicle communication at the exit gate, From the lane control device that has read the admission record, it is determined that the communication is abnormal, and automatic toll collection is rejected.

  The present invention solves such a conventional problem, and provides an ETC system that can prevent erroneous charging and abnormal communication caused by reflected radio waves and leaked radio waves in road-to-vehicle communication. The purpose is to provide an in-vehicle device to be used in.

Therefore, in the ETC system of the present invention, the identification held by the lane control device that controls the road-to-vehicle communication of the automatic toll collection lane with respect to the ETC in-vehicle device of the vehicle facing the automatic toll collection lane of the toll road tollgate. An information transmission means for transmitting information is provided, and when the vehicle enters the automatic toll collection lane, the ETC vehicle-mounted device receives and stores the identification information received from the information transmission means and the identification information held by the lane control device. After confirming the match, road-to-vehicle communication is executed.
Therefore, road-to-vehicle communication due to reflected radio waves and leaked radio waves can be avoided, and as a result, erroneous charges and abnormal communication can be prevented.

In the present invention, the ETC in-vehicle device is provided with an antenna for road-to-vehicle communication and a beacon receiving means for receiving a signal from an optical beacon or a radio beacon, and the identification received from the optical beacon or the radio beacon through this beacon receiving means. The information and the reception time of the identification information are stored.
The ETC system can be realized using this ETC in-vehicle device.

In the present invention, the ETC vehicle-mounted device is provided with an antenna for road-to-vehicle communication, and from a light beacon or a radio beacon via a car navigation device provided with a beacon receiving means for receiving a signal of an optical beacon or a radio beacon. The identification information is received, and the identification information and the reception time of the identification information are stored.
In this ETC in-vehicle device, the configuration can be simplified by using the car navigation device.

In the ETC system of the present invention, the start of road-to-vehicle communication is confirmed based on the identification information, so road-to-vehicle communication due to reflected radio waves and leaked radio waves can be avoided. Can be prevented.
Moreover, the vehicle-mounted device of the present invention can realize this ETC system.

(First embodiment)
In the ETC system according to the first embodiment of the present invention, the lane identification information is transmitted to the vehicle entering the ETC lane, and the lane identification information is confirmed at the start of road-to-vehicle communication.
In this system, as shown in FIG. 1, an optical beacon 51 that transmits ETC lane identification information to the approaching vehicle 36 from above is provided on the ETC lane introduction path. FIG. 2 shows a plan view of the ETC lane. The configuration other than the optical beacon 51 is the same as the conventional one (FIG. 12).

The optical beacon 51 is an information transmission unit that transmits and receives information by optical communication, and is also used as one of traffic information providing units in a VICS (road traffic information communication system). A commercially available VICS-compatible car navigation device has an optical communication function with the optical beacon.
The optical beacon 51 installed in the introduction path of the ETC lane may be a dedicated beacon that exclusively transmits ETC lane identification information, or it also serves as a VICS optical beacon and transmits traffic information together with the ETC lane identification information. But it ’s okay.

FIG. 3 schematically shows the wireless communication area 313 of the roadside antenna 31 and the optical communication area 52 of the optical beacon 51. Since the light has a straight traveling property, the optical beacon 51 can strictly specify the communication destination, and the identification information of the ETC lane can be sent only to the vehicle passing under the optical beacon 51.
As shown in FIG. 4, the ETC in-vehicle device mounted on the vehicle has an optical beacon light receiving unit 47 that receives an optical signal transmitted from the optical beacon 51, and converts the received optical signal into an electric signal to control the on-vehicle device. And an optical beacon circuit 46 for outputting to the unit 40. Other configurations are the same as the conventional apparatus (FIG. 14).
The lane control device 135 installed in the ETC lane includes a lane ID storage unit 353 that stores a lane ID that is lane identification information, as shown in FIG. Other configurations are the same as the conventional apparatus (FIG. 13).

In this system, a vehicle entering the ETC lane first passes through the optical communication area 52 of the optical beacon 51. The optical beacon 51 repeatedly transmits the lane ID information of this ETC lane, and the ETC in-vehicle device mounted on the vehicle receives this optical signal by the optical beacon receiving unit 47 and converts it into an electrical signal by the optical beacon circuit 46. The lane ID information and its reception time are stored and held in the in-vehicle device control unit 40.
When the vehicle that has passed through the optical communication area 52 enters the ETC lane, and the first vehicle detector S1 detects this vehicle, the lane control device 135 performs polling to call the response of the ETC in-vehicle device through the roadside antenna 31, In polling, the lane ID stored in the lane ID information storage unit 353 is transmitted.

  The in-vehicle device that has received the polling compares the elapsed time from the reception time with a preset threshold value in order to confirm the validity of the lane ID information received from the optical beacon 51. If the elapsed time does not exceed the threshold and the lane ID information received from the optical beacon 51 is recognized as valid, the lane ID information is compared with the lane ID information included in the polling, and they match. Only start road-to-vehicle communication. The operation after the start of road-to-vehicle communication is the same as before.

The flowchart of FIG. 6 shows the processing procedure of the vehicle-mounted device at this time. When polling including lane ID information is received (step 1), whether or not the lane ID is the same as the lane ID received from the optical beacon 51 is identified (step 2). Start (step 3). If they are not the same, all received data is discarded and a new polling is waited for.
On the other hand, the flowchart of FIG. 7 shows a processing procedure of the lane control device 135 in this case. When the first vehicle detector S1 detects the vehicle, lane ID information is transmitted by polling (step 10), and the presence / absence of a response from the in-vehicle device is confirmed (step 11). When there is a response, road-to-vehicle communication is started (step 12). If there is no response, the process returns to step 10 to continue polling.
The operation of the lane control device 135 after the start of road-to-vehicle communication is the same as the conventional one. In addition, the operation when the second vehicle detector S2 detects a vehicle when polling is continued without a response from the in-vehicle device is the same as the conventional one, and this vehicle is processed as a non-ETC vehicle. Do.

  Thus, in this system, the lane ID is transmitted to the vehicle entering the ETC lane, and road-to-vehicle communication is executed only when the lane ID matches can be confirmed. For this reason, even when a reflected radio wave or leaked radio wave originating from another ETC lane reaches this vehicle, the lane IDs do not match and road-to-vehicle communication is not performed. In addition, even when the reflected radio wave of the ETC lane reaches an ETC car traveling on a general road, the in-vehicle device of the ETC car that does not hold the lane ID does not respond to the reflected radio wave, so that an erroneous charge can be prevented.

  Here, the case where the ETC in-vehicle device confirms the coincidence of the lane IDs has been described, but the lane ID information received by the ETC in-vehicle device from the optical beacon 51 in response to the polling and the reception time thereof are the lane control device 135. The lane control device 135 checks the validity of the lane ID information received from the ETC in-vehicle device, and if it is valid, the lane ID information and the lane ID information storage unit 353 stores the lane ID information. The ID information may be compared to determine the match.

The flowchart of FIG. 8 shows the processing procedure of the in-vehicle device in this case. When polling is received (step 20), the lane ID information received from the optical beacon 51 and its reception time are transmitted to the lane control device 135 (step 21), and a start instruction for road-to-vehicle communication is awaited (step 22). When the start of communication is instructed from the lane control device 135, road-to-vehicle communication is started (step 23). When there is no command to start communication, it waits for reception of a new polling.
On the other hand, the flowchart of FIG. 9 shows a processing procedure of the lane control device 135 in this case. When the first vehicle detector S1 detects the vehicle, the lane control device 135 performs polling for calling a response through the roadside antenna 31 (step 30) and waits for a response from the in-vehicle device (step 31). If there is no response, the process returns to step 30 to continue polling. When a response including lane ID information and reception time information is received from the in-vehicle device (step 32), the validity of the lane ID information is confirmed by comparing the elapsed time from the reception time with a preset threshold value. When the lane ID information and the lane ID information stored in the lane ID information storage unit 353 coincide with each other, it is identified (step 33). Start (step 34). If they do not match, the received data is discarded, and the process returns to step 30 to continue polling.

  The ETC in-vehicle device may obtain information from the optical beacon 51 via a VICS-compatible navigation device. FIG. 10 shows the configuration of the in-vehicle device in this case. The VICS-compatible navigation device 48 includes an optical beacon light receiving unit 49, and also includes a VICS circuit that converts the received optical signal into an electrical signal. The lane ID information transmitted from the optical beacon 51 is received by the navigation device 48 and sent to the in-vehicle device control unit 40.

  Further, the means for transmitting the lane ID information to the ETC lane approaching vehicle may be a radio beacon used as one of the means for providing the VICS traffic information. The means for transmitting the lane ID information may be other than an optical beacon or a radio beacon (for example, a magnetic marker embedded in the road surface). Since the function can be used, there is an advantage that the ETC in-vehicle device can be easily configured.

(Second Embodiment)
The ETC system according to the second embodiment of the present invention is configured so that reflected radio waves that reach the exit gate from the entrance gate of the toll gate do not affect road-to-vehicle communication at the exit gate.
Here, as shown in FIG. 11, there are three ETC lanes # 1, # 2, and # 3 at the exit of the expressway, and to the toll gate that has two ETC lanes # 11 and # 12 at the entrance. An application example is shown. In this ETC system, an optical beacon 51 is provided on an introduction path of an exit toll gate on an expressway, and the ID information of the exit toll gate is transmitted to all ETC vehicles heading for the exit toll gate by the optical beacon 51.

The ETC in-vehicle device mounted on the ETC vehicle has the same configuration as that of the first embodiment (FIG. 4 or FIG. 10), and the exit toll gate ID information received from the optical beacon 51 and its reception time Is stored and held in the in-vehicle device control unit 40.
Further, the lane control device installed in each ETC lane of the exit toll gate has the same configuration as that of the first embodiment (FIG. 5), except that the lane ID storage unit 353 includes the exit toll gate. ID information is stored.
In this system, the vehicle must pass through the optical communication area 52 of the optical beacon 51 in order to proceed to the exit toll gate. The optical beacon 51 transmits the ID information of the exit toll gate to the vehicle passing through the optical communication area 52, and this ID information and the reception time thereof are held by the ETC in-vehicle device mounted on the vehicle.

  When this vehicle enters one ETC lane of the exit toll gate, the exit held by the ETC on-board device between the lane control device of the lane and the ETC on-board device in the same procedure as in the first embodiment. Matching between the ID information of the toll gate and the ID information of the exit toll gate stored in the lane control device is confirmed, and road-to-vehicle communication is started only when they match. The processing procedure of the ETC in-vehicle device at this time is the same as that of FIG. 6 or FIG. 8, and the processing procedure of the lane control device is the same as that of FIG. 7 or FIG. 9 (however, “lane ID information in the procedure” "Is the" exit toll gate ID information ").

  In this way, in this system, the ID information of the exit toll booth is transmitted to the vehicle heading to the exit toll booth, and road-to-vehicle communication is executed only when the ID information matches and the ID information matches. If it cannot be confirmed, the received data is discarded. Therefore, even when a reflected radio wave or a leaked radio wave arrives at this vehicle from the entrance lane, the ID information does not match, so road-to-vehicle communication is not performed, and as a result, erroneous charges and abnormal communication can be prevented.

  Note that the information given from the optical beacon 51 of this system is not information for identifying individual ETC lanes at the exit toll booth. Therefore, in this system, road-to-vehicle communication using reflected radio waves from adjacent lanes at the exit toll booth is completely performed. It cannot be excluded. However, in the case of an ETC in-vehicle device, no matter what ETC lane lane control device is used for road-to-vehicle communication, there will be no inconvenience as long as the billing process ends normally and it can pass through the exit toll gate without being blocked (ETC The lane control device of the ETC lane into which the in-vehicle device has entered can perform processing that allows ETC vehicles that have already been charged to pass). For this reason, it is not always necessary to provide information for identifying individual ETC lanes to ETC in-vehicle devices on highways where only ETC vehicles travel.

  In addition, when all of the plurality of lanes facing the exit toll gate cannot be covered by the optical communication area 52 of one optical beacon 51, a plurality of optical beacons are provided, and all of the plurality of lanes are covered by these optical communication areas. At this time, data specifying a plurality of continuous lanes may be transmitted from each optical beacon, and the lane control device of the ETC lane may check the data and start road-to-vehicle communication.

In addition, here, a case where an optical beacon is provided on the entrance to the exit toll gate has been described. However, an optical beacon is provided on the entrance to the entrance toll gate, and the vehicle from the optical beacon to the entrance toll gate ID information may be transmitted. In this case, the entrance toll booth starts road-to-vehicle communication only when the ID information is confirmed, and the ETC in-vehicle device of the vehicle heading to the exit toll booth does not perform polling including the ID information of the entrance toll booth. It shall not react at all.
As in the first embodiment, information transmission means such as a radio beacon can be used instead of the optical beacon.

  The present invention can be applied to an automatic fee collection system and an in-vehicle device used for the automatic fee collection system to prevent occurrence of erroneous charging and abnormal communication.

Configuration example (overview) of toll gate in the first embodiment of the present invention Configuration example (plan view) of toll gate in the first embodiment of the present invention The figure which shows the communication area | region of the optical beacon and roadside antenna in the 1st Embodiment of this invention The block diagram which shows the structure of the vehicle equipment in the 1st Embodiment of this invention. The block diagram which shows the structure of the lane control apparatus in the 1st Embodiment of this invention. The flowchart which shows the communication processing procedure of the vehicle equipment in the 1st Embodiment of this invention. The flowchart which shows the communication processing procedure of the lane control apparatus in the 1st Embodiment of this invention. The flowchart which shows the 2nd communication processing procedure of the vehicle equipment in the 1st Embodiment of this invention. The flowchart which shows the 2nd communication processing procedure of the lane control apparatus in the 1st Embodiment of this invention. The block diagram which shows the 2nd structure of the vehicle equipment in the 1st Embodiment of this invention. The top view which shows the toll booth in the 2nd Embodiment of this invention Conventional toll gate configuration example (overview) Block diagram showing the configuration of a conventional lane control device Block diagram showing the configuration of a conventional in-vehicle device Conventional toll gate configuration example (plan view) The figure which shows the influence of the reflected wave to the adjacent lane of the ETC toll gate Plan view showing the effect of reflected waves on adjacent lanes of the ETC toll gate The figure which shows the influence of the reflected wave to the adjacent lane when the traveling lanes of the ETC toll gate are facing each other A plan view showing the influence of reflected waves on adjacent lanes when the lanes of an ETC toll gate are facing each other

Explanation of symbols

S1 First vehicle detector
S2 Second vehicle detector
S3 Third vehicle detector
S4 4th vehicle detector
31 Roadside antenna
32 Roadside indicator
33 Start controller
34 Island
35 Lane control device
36 vehicles
40 On-board unit controller
41 IC card interface
42 Communication control unit
43 RF circuit
44 Car antenna
45 HMI Department
46 Optical beacon circuit
47 Optical beacon receiver
48 Navigation equipment
49 Optical beacon receiver
51 Light beacon
52 Optical communication area
135 Lane control device
311 Communication area
312 Road-to-vehicle communication area
313 Wireless communication area
314 reflected wave
351 Communication control unit
352 RF circuit
353 Lane ID information storage
361 vehicles
362 vehicles
410 roof

Claims (12)

An information transmission means for transmitting identification information held by a lane control device for controlling road-to-vehicle communication of the automatic toll collection lane to an ETC in-vehicle device of a vehicle facing an automatic toll collection lane of a toll road toll gate When the vehicle enters the automatic toll collection lane, the ETC vehicle-mounted device receives and stores the identification information received from the information transmission means and the identification information held by the lane control device. An automatic toll collection system characterized by confirming and executing the road-to-vehicle communication. When the vehicle enters the automatic toll collection lane, the lane control device transmits the held identification information to the ETC on-vehicle device, and the ETC on-vehicle device receives the identification information received from the lane control device. The automatic fee collection system according to claim 1, wherein the automatic fee collection system responds when it matches the identification information received and stored from the information transmission means and does not respond when they do not match. The ETC in-vehicle device determines the validity of the identification information received and stored from the information transmission means based on the elapsed time from the reception time, and does not respond when the identification information is not valid. 3. The automatic fee collection system according to claim 2, wherein When the vehicle enters the automatic toll collection lane, the ETC in-vehicle device transmits the identification information received and stored from the information transmission means to the lane control device, and the lane control device holds the information. When the identification information received and the identification information received from the ETC on-vehicle device match, the ETC on-vehicle device is instructed to execute road-to-vehicle communication, and when the identification information does not match, the execution of road-to-vehicle communication is not instructed. The automatic fee collection system according to claim 1. The ETC in-vehicle device transmits a reception time when the identification information is received from the information transmission means together with the identification information to the lane control device, and the lane control device is configured to transmit the ETC based on an elapsed time from the reception time. The validity of the said identification information received from the vehicle equipment is judged, and when the said identification information is not valid, execution of road-to-vehicle communication is not instruct | indicated with respect to the said ETC vehicle equipment. Automatic toll collection system. The information transmission means is installed on an introduction path of the automatic toll collection lane, and transmits identification information for uniquely identifying the automatic toll collection lane held by the lane control device to the ETC in-vehicle device. 6. The automatic fee collection system according to claim 1, wherein the automatic fee collection system is characterized. Identification that uniquely identifies the exit toll gate or the entrance toll gate, which is installed in the exit toll gate or the entrance to the entrance toll gate, and is held by the lane control device with respect to the ETC in-vehicle device. 6. The automatic fee collection system according to claim 1, wherein information is transmitted. 2. The automatic toll collection according to claim 1, wherein the information transmission means transmits identification information for identifying a plurality of continuous driving lanes held by the lane control device to the ETC in-vehicle device. system. 9. The automatic fee collection system according to claim 1, wherein the information transmission means is an optical beacon. 9. The automatic fee collection system according to claim 1, wherein the information transmission means is a radio beacon. An antenna for road-to-vehicle communication; and a beacon receiving unit that receives a signal from an optical beacon or a radio beacon; identification information received from the optical beacon or radio beacon through the beacon receiving unit; and a reception time of the identification information; ETC in-vehicle device characterized by memorizing. Receiving identification information from the optical beacon or radio wave beacon via a car navigation device provided with a beacon receiving means for receiving an optical beacon or radio beacon signal, comprising an antenna for road-to-vehicle communication, and the identification information An on-board ETC device that stores the reception time of the identification information.

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