JP2014032467A - Automatic toll collection terminal device and automatic toll collection on-vehicle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a risk of the theft of an ETC card, protect the ETC card from oscillation, water drop, dust, and exhaust heat, reduce a physical size easily, and eliminate a lock mechanism.SOLUTION: An automatic toll collection on-vehicle device 2 includes: a card side wireless communication unit 26 for wirelessly acquiring ETC card information read from an ETC card 11 via an automatic toll collection terminal device 1 and for wirelessly notifying the automatic toll collection terminal device 1 of written information written in the ETC card 11; a road-side machine wireless communication unit 27 for wirelessly notifying a road-side machine 3 of the ETC card information read from the ETC card 11 and wirelessly acquiring written information written in the ETC card 11 from the road-side machine 3; and a security unit 22 for managing transmission and reception of the ETC card information read from the ETC card 11 and written information written in the ETC card 11.

Description

  The present invention relates to a technology for automatically collecting a toll on a toll road.

  The technology for automatically collecting tolls on toll roads has become highly popular in recent years, and is disclosed in, for example, Patent Document 1. Automatic toll collection devices are classified into an integrated type in which the antenna and the main body are integrated and a separate type in which the antenna and the main body are separate.

  In the integrated automatic toll collection device, it is necessary to install the automatic toll collection device at a position that enters the field of view in order to communicate with the roadside device, so that the possibility of the ETC card being stolen increases. Since the ETC card and the antenna are integrated, it is difficult to reduce the size. Further, particularly in the case of a two-wheeled vehicle, an ETC card locking mechanism is required to prevent the ETC card from being stolen.

  In a separate type automatic toll collection device, the ETC card can be stolen because it is only necessary to install the antenna at a position that enters the field of view in order to communicate with the roadside machine, and it is not necessary to install the main body at a position that enters the field of view. Low. Since the ETC card and the antenna are separate bodies, it is easy to reduce the size. Furthermore, even in the case of a two-wheeled vehicle, the ETC card locking mechanism is not necessary to prevent the ETC card from being stolen because the main body is not installed at a position where it can be seen.

JP 2001-076193 A

  In the separate type automatic toll collection device, the main body is not installed at a position where it can be seen, so there is a high possibility of leaving the vehicle with the ETC card attached, and the possibility of theft of the ETC card remains. In particular, in the case of a two-wheeled vehicle, since the ETC card is placed under the seat, it is necessary to protect the unsealed ETC card from vibration, water droplets, dust, and exhaust heat.

  Therefore, in order to solve the above problems, the present invention further reduces the possibility of the ETC card being stolen, protects the ETC card from vibration, water droplets, dust, and exhaust heat, facilitates downsizing, and does not require a lock mechanism. It aims to be.

  In order to achieve the above object, the ETC card reader / writer unit and the main body are separated, and wireless communication is executed by the ETC card reader / writer unit and the main body.

  Specifically, the present invention provides an ETC card reader / writer unit that reads ETC card information from an ETC card and writes write information to the ETC card, and the ETC card information read by the ETC card reader / writer unit. To the automatic fee collection in-vehicle device, and the write information written by the ETC card reader / writer unit is acquired from the automatic fee collection in-vehicle device by wireless communication; the ETC card reader / writer unit; An automatic fee collection terminal device comprising: a power supply unit that supplies power to the wireless communication unit.

  Further, the present invention acquires the ETC card information read from the ETC card from the automatic fee collection terminal device by wireless communication, and writes the write information written in the ETC card by the wireless communication to the automatic fee collection terminal. A card-side wireless communication unit that notifies the device, and the ETC card information read from the ETC card is notified to the roadside device by wireless communication, and the write information written to the ETC card is transmitted by wireless communication to the roadside And a security unit that manages transmission / reception of the ETC card information read from the ETC card and the write information written to the ETC card. It is an in-vehicle device for automatic fee collection.

  According to this configuration, the ETC card can be kept at hand during driving and carried around when it is stopped. Therefore, the possibility of theft of the ETC card is further reduced, and the ETC card is protected from vibration, water droplets, dust and exhaust heat, and is downsized. And a lock mechanism can be dispensed with.

  The present invention also provides a non-volatile memory unit storing an identification number of the automatic toll collection terminal device read from the automatic toll collection terminal device, the card side wireless communication unit, the roadside device side A power acquisition unit that acquires power supplied to the wireless communication unit, the security unit, and the nonvolatile memory unit, wherein the security unit is read from the automatic fee collection terminal device. The power acquired by the power acquisition unit is once turned off and turned on again after the receipt of the identification number of the receiving terminal device is recognized until the transmission / reception of the billing information written in the ETC card is recognized. When recognizing, the identification number of the automatic fee collection terminal device read from the automatic fee collection terminal device used when the power is turned on again, and the non-volatile The identification number of the automatic fee collection terminal device read from the automatic fee collection terminal device stored in the memory unit is compared. When the two identification numbers match, the power supply is temporarily turned off. The automatic toll collecting in-vehicle apparatus is characterized in that the process is continued and the process after the power is turned off is stopped when the two identification numbers do not match.

  According to this configuration, after performing authentication between the automatic toll collection terminal device and the automatic toll collection in-vehicle device by the entrance of the toll road, the automatic toll collection terminal device and automatic toll collection are performed in the middle of the toll road. When re-authenticating between in-vehicle devices, the combination of the terminal device for automatic fee collection and the in-vehicle device for automatic fee collection that has been authenticated by the entrance can be regarded as successful authentication. An authentication failure may be caused for a combination of an automatic fee collection terminal device and an automatic fee collection in-vehicle device that have not been authenticated. Therefore, even if the ETC card reader / writer unit and the main body are separated, the authentication process between the combination of the automatic fee collection terminal device and the automatic fee collection in-vehicle device can be executed accurately.

  The present invention further reduces the possibility of the ETC card being stolen, protects the ETC card from vibration, water droplets, dust, and exhaust heat, facilitates downsizing, and eliminates the need for a lock mechanism.

It is a figure which shows the structure of the automatic fee collection system of this invention. It is a figure which shows the process of the automatic fee collection system of this invention.

  Embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below are examples of the present invention, and the present invention is not limited to the following embodiments.

(Configuration of automatic fee collection system)
The configuration of the automatic fee collection system of the present invention is shown in FIG. The automatic fee collection system includes an automatic fee collection terminal device 1, an automatic fee collection vehicle-mounted device 2, and a roadside device 3. The automatic toll collecting terminal device 1 is kept at hand when driving and is carried when stopped. The automatic toll collection in-vehicle device 2 is mounted on a vehicle body. The roadside machine 3 is installed at the entrance and exit of the toll road. The automatic fee collection terminal device 1 having an ETC card and the automatic fee collection vehicle-mounted device 2 functioning as a main body are separated and perform wireless communication.

  The automatic fee collection terminal device 1 includes an ETC card 11, an ETC card reader / writer unit 12, a wireless communication unit 13, and a power supply unit 14. The ETC card 11 stores ETC card information such as an ETC card number and write information such as billing information. The ETC card reader / writer unit 12 reads ETC card information from the ETC card 11 and writes write information to the ETC card 11. The wireless communication unit 13 notifies the ETC card information read by the ETC card reader / writer unit 12 to the in-vehicle device 2 for automatic fee collection by wireless communication, and automatically writes the write information written by the ETC card reader / writer unit 12 by wireless communication. Obtained from the toll collection in-vehicle device 2. The power supply unit 14 supplies power to the ETC card reader / writer unit 12 and the wireless communication unit 13.

  The automatic toll collecting in-vehicle device 2 includes a CPU 21, a security unit 22, a ROM 23, a RAM 24, an F (Ferroelectric) -RAM 25, a card side wireless communication unit 26, a road side device side wireless communication unit 27, a power acquisition unit 28 and a signal processing unit 29. Consists of The CPU 21 controls the automatic toll collection in-vehicle device 2 as a whole. The ROM 23 stores a program necessary for control by the CPU 21. The RAM 24 stores temporary data necessary for control by the CPU 21. The F-RAM 25 stores the identification number of the automatic fee collection terminal device 1 read from the automatic fee collection terminal device 1.

  The security unit 22 manages transmission / reception of ETC card information read from the ETC card 11 and write information written to the ETC card 11. The card-side wireless communication unit 26 acquires the ETC card information read from the ETC card 11 from the automatic fee collection terminal device 1 by wireless communication, and writes the write information written in the ETC card 11 by automatic communication. Notify the receiving terminal device 1. The roadside device-side wireless communication unit 27 notifies the ETC card information read from the ETC card 11 to the roadside device 3 by wireless communication, and acquires write information to be written to the ETC card 11 from the roadside device 3 by wireless communication. To do. The power source acquisition unit 28 acquires from the vehicle body the power supplied to the entire automatic toll collection in-vehicle device 2 including the card side wireless communication unit 26, the roadside device side wireless communication unit 27, the security unit 22, and the F-RAM 25. . The signal processing unit 29 performs modulation / demodulation of ETC card information read from the ETC card 11 and write information written to the ETC card 11.

  As described above, the automatic fee collection terminal device 1 and the automatic fee collection in-vehicle device 2 are disconnected, and the automatic fee collection terminal device 1 and the automatic fee collection in-vehicle device 2 execute wireless communication. In other words, the automatic toll collection terminal device 1 can be kept at hand during driving and carried around when stopped. Therefore, the possibility of theft of the ETC card 11 can be further reduced, and the ETC card 11 can be protected from vibration, water droplets, dust, and exhaust heat. Then, it is possible to easily reduce the size of the on-board device 2 for automatic fee collection, and to eliminate the need for a locking mechanism for the ETC card 11.

  As shown in FIG. 1, the on-board device 2 for automatic toll collection may adopt an integrated type that is integral with the antenna, and although not shown in FIG. 1, adopts a separate type that is separate from the antenna. May be. Even if the automatic toll collecting in-vehicle device 2 is an integrated type, it does not include the ETC card 11 and the ETC card reader / writer unit 12, and therefore can be reduced in size. If the automatic toll collecting in-vehicle device 2 is a separate type, it does not further include an antenna, and thus can be further reduced in size.

(Processing of automatic fee collection system)
As described above, the automatic fee collection terminal device 1 and the automatic fee collection in-vehicle device 2 are disconnected, and the automatic fee collection terminal device 1 and the automatic fee collection in-vehicle device 2 execute wireless communication. By the way, in the middle of a toll road, after turning off the engine and turning off the power, the engine may be turned on and turned on. At this time, after performing the authentication between the automatic toll collection terminal device 1 and the automatic toll collection in-vehicle device 2 by the entrance of the toll road, the automatic toll collection terminal device 1 and the automatic toll collection are performed in the middle of the toll road. It is necessary to perform authentication between the in-vehicle devices 2 again. At this time, if there are a plurality of automatic fee collection terminal devices 1, it is necessary to identify which automatic fee collection terminal device 1 has been authenticated by the entrance.

  The processing of the automatic fee collection system of the present invention is shown in FIG. The user presses a switch for operating the power supply unit 14 in the automatic fee collection terminal device 1. The security unit 22 reads the identification number of the automatic fee collection terminal device 1 from the automatic fee collection terminal device 1 via the ETC card reader / writer unit 12, the wireless communication unit 13, and the card side wireless communication unit 26, and F- The identification number of the automatic fee collection terminal device 1 is written in the RAM 25 (step S1). The security unit 22 acquires the entrance information from the roadside device 3 via the roadside device side wireless communication unit 27 at the entrance of the toll road, and writes the entrance information in the F-RAM 25 (step S2).

  The security unit 22 recognizes the reception of the identification number of the automatic fee collection terminal device 1 read from the automatic fee collection terminal device 1 until the transmission / reception of the billing information written in the ETC card 11 is recognized. Then, it is confirmed whether or not the power source acquired by the power source acquisition unit 28 is once turned off and turned on again (step S3). If NO in step S3, steps S6 and S7 are executed without passing through steps S4 and S5. If “YES” in the step S3, the steps S6 and S7 are executed through the steps S4 and S5.

  First, the case where it is NO in step S3 will be described. The security unit 22 reads the entrance information from the F-RAM 25 at the exit of the toll road, and notifies the entrance information to the roadside device 3 via the roadside device side wireless communication unit 27 (step S6). The security unit 22 obtains billing information from the roadside device 3 via the roadside device-side wireless communication unit 27 at the exit of the toll road, and the card-side wireless communication unit 26, the wireless communication unit 13, and the ETC card reader / writer unit 12 The billing information is written to the ETC card 11 via (step S7).

  Next, a case where YES is determined in step S3 will be described. The user turns on the engine and turns on the power. Then, the user presses a switch for operating the power supply unit 14 in any of the plurality of automatic fee collection terminal devices 1. Here, one of the plurality of automatic fee collection terminal devices 1 selected by the user is correct or incorrect. The security unit 22 reads the identification number of the automatic fee collection terminal device 1 from the automatic fee collection terminal device 1 via the ETC card reader / writer unit 12, the wireless communication unit 13, and the card side wireless communication unit 26. And the security part 22 is memorize | stored in the identification number of the automatic fee collection terminal device 1 read from the automatic fee collection terminal device 1 currently used when the power supply is turned on again, and the F-RAM 25. It is compared whether or not the identification numbers of the automatic fee collection terminal device 1 read from the automatic fee collection terminal device 1 match (step S4).

  When the two identification numbers match, that is, when any of the plurality of automatic fee collection terminal devices 1 selected by the user is correct (YES in step S5), the security unit 22 turns off the power supply once. The subsequent steps S6 and S7 are continued. When the two identification numbers do not match, that is, when any of the plurality of automatic fee collection terminal devices 1 selected by the user is incorrect (NO in step S5), the security unit 22 temporarily turns off the power. Subsequent steps S6 and S7 are stopped. Then, the security unit 22 selects one of the plurality of automatic fee collection terminal devices 1 until the two identification numbers are matched (steps S4 and S5).

  As described above, when the automatic toll collection terminal device 1 is authenticated before the entrance of the toll road, when the authentication of the automatic toll collection terminal device 1 is performed again in the middle of the toll road, the entrance of the toll road The automatic toll collection terminal device 1 that has been authenticated before can be authenticated successfully, and the automatic toll collection terminal device 1 that has not been authenticated until the entrance of the toll road is authenticated. Can be a failure. Therefore, even if the automatic fee collection terminal device 1 and the automatic fee collection in-vehicle device 2 are separated, any one of the plurality of automatic fee collection terminal devices 1 can be correctly selected, and the authentication process is executed accurately. be able to.

  It should be noted that transmission / reception of ETC card information is preferably encrypted for security reasons even between the automatic fee collection terminal device 1 and the automatic fee collection in-vehicle device 2. Therefore, it is desirable that not only the automatic fee collection in-vehicle device 2 includes the security unit 22, but also the automatic fee collection terminal device 1 includes the security unit.

  Further, in the automatic fee collection terminal device 1, the identification number of the automatic fee collection terminal device 1 may be stored in the ETC card reader / writer unit 12 or other memory or storage circuit. In this case, if the data is not lost even when the power is turned off, the data may be stored in the ROM 23, RAM 24, F-RAM 25 or other memory or storage circuit. Further, the identification number of the automatic fee collection terminal device 1 can be a production number or the like.

  The automatic toll collection terminal device and the automatic toll collection in-vehicle device according to the present invention can be used to steal an ETC card in both a four-wheeled vehicle equipped with an in-vehicle device inside a vehicle body and a two-wheeled vehicle equipped with an in-vehicle device on the body surface. Can be protected from impact.

1: Automatic toll collection terminal device 2: Automatic toll collection in-vehicle device 3: Roadside device 11: ETC card 12: ETC card reader / writer unit 13: Wireless communication unit 14: Power supply unit 21: CPU
22: Security part 23: ROM
24: RAM
25: F-RAM
26: Card side wireless communication unit 27: Roadside device side wireless communication unit 28: Power source acquisition unit 29: Signal processing unit

Claims (3)

An ETC card reader / writer that reads ETC card information from the ETC card and writes write information to the ETC card;
The ETC card information read by the ETC card reader / writer unit is notified to the automatic fee collection in-vehicle device by wireless communication, and the write information written by the ETC card reader / writer unit is transmitted by wireless communication to the automatic fee collection in-vehicle device. A wireless communication unit obtained from the device;
A power supply unit for supplying power to the ETC card reader / writer unit and the wireless communication unit;
An automatic fee collection terminal device comprising: The ETC card information read from the ETC card is acquired from the automatic fee collection terminal device by wireless communication, and the writing information written to the ETC card is notified to the automatic fee collection terminal device by wireless communication A wireless communication unit;
A roadside unit-side wireless communication unit that notifies the roadside unit of the ETC card information read from the ETC card by wireless communication, and acquires the write information to be written to the ETC card from the roadside unit by wireless communication; ,
A security unit that manages transmission and reception of the ETC card information read from the ETC card and the write information written to the ETC card;
An in-vehicle device for automatic fee collection, comprising: A non-volatile memory unit storing an identification number of the automatic fee collection terminal device read from the automatic fee collection terminal device;
A power acquisition unit that acquires power supplied to the card side wireless communication unit, the roadside unit side wireless communication unit, the security unit, and the nonvolatile memory unit;
Further comprising
The security unit recognizes the reception of the identification number of the automatic fee collection terminal device read from the automatic fee collection terminal device until it recognizes transmission / reception of charging information written in the ETC card. When the power acquired by the power acquisition unit is once turned off and then turned on again, the automatic charge collection read from the automatic charge collection terminal device used at the time of turning on the power again. The identification number of the terminal device for use is compared with the identification number of the automatic fee collection terminal device read from the automatic fee collection terminal device stored in the nonvolatile memory unit, and two identification numbers are compared. , The processing following the power-off once is continued, and when the two identification numbers do not match, the processing following the power-off is stopped. Electronic toll collection for vehicle apparatus according to Motomeko 2.

Images