JP2004355334A - Electronic toll collection system onboard apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ETC (Electronic Toll Collection System) onboard apparatus by which an IC card mounted on the ETC onboard apparatus can use for the other services in addition to the ETC service as multi-use. <P>SOLUTION: The ETC onboard apparatus is provided with an encryption processing part 24 which performs an encryption processing exclusively for ETC while performing reading and writing of information with an IC card 30, an IC card reading and writing part 25 which performs reading and writing of information with the IC card 30 apart from the encryption processing part, and a control part 26a which performs the control of reading and writing of information with the IC card to the IC card reading and writing part 25 and the encryption processing part 24; and the onboard apparatus controls reading and writing of information of the IC card 30. By these means, the onboard apparatus can perform reading and writing of IC card 30 transmitting and receiving both of the data for ETC and the data in addition to ETC-use, so that the uses of the ETC on-vehicle apparatus are expanded and the ETC onboard apparatus can receive various services not restricting to ETC by the IC card. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an on-board device for an automatic toll collection system used on a toll road or the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in an automatic toll collection system for a toll road such as an expressway (hereinafter referred to as an ETC [Electronic Toll Collection System]), an in-vehicle device into which an IC card is inserted and a server that performs charge management are connected via a roadside device. Sending and receiving information.
[0003]
FIG. 8 shows a block diagram of a conventional ETC vehicle-mounted device. As shown in FIG. 8, in the conventional vehicle-mounted ETC device, an antenna 3 for transmitting and receiving the reception signal W1 and the transmission signal W2 to and from the roadside device 1, an electronic circuit 4 including a communication control unit and a vehicle-mounted device controller, 5 for transmitting and receiving various data to and from the roadside device 1 (for example, see Patent Document 1).
[0004]
Therefore, in order to enhance the confidentiality between the in-vehicle device and the server, an encryption processing unit is provided in each of the in-vehicle device and the server, and the encrypted information is transmitted between the in-vehicle device and the server.
[0005]
Separately, in a parking lot or a gas station, charging information is stored in a recording medium such as a prepaid card, and charging processing such as a parking fee and a car washing cost is performed by changing the charging information in the prepaid card. However, in this case, the billing process is performed by inserting the prepaid card body into a device outside the vehicle.
[0006]
[Patent Document 1]
JP 2000-276625 A
[0007]
[Problems to be solved by the invention]
However, in such a conventional ETC, information to be transmitted and received is always input to an encryption processing unit unique to the ETC, and an IC card cannot be accessed without passing through the encryption processing unit. However, there is a problem that the system cannot be applied to a system using an IC card for a purpose other than the ETC, such as performing a billing process with a roadside device using the billing information in the IC card while the device is inserted in the on-board ETC device. Was. For example, the conventional ETC on-board device and IC card cannot be used for credit or prepaid payment at a fast food, gas station, or parking lot.
[0008]
In addition, in order to switch between accessing the IC card by performing the encryption process and accessing the IC card without performing the encryption process, a selection must be made before accessing the IC card. There is a problem.
[0009]
The present invention has been made to solve such a problem, and an IC card that can be used for the above-mentioned services is mounted on an ETC vehicle-mounted device, and an automatic toll collection system that can support multiple services other than the ETC is provided. To provide a vessel.
[0010]
[Means for Solving the Problems]
An on-board automatic toll collection system according to the present invention includes an IC card having a plurality of pieces of information and an IC card reading and writing means for reading and writing information, and an IC card for reading and writing information from and to the IC card, and performing encryption processing for the automatic toll collection system. And a control unit for controlling the reading and writing of information from and to the IC card with respect to the IC card reading and writing unit and the encryption processing unit.
[0011]
With this configuration, the reading and writing of information on the IC card is controlled by an encryption processing unit that reads and writes an IC card and performs an encryption process dedicated to ETC, and an IC card reading and writing unit that reads and writes an IC card separately from the encryption processing unit. Therefore, since both data for ETC and data other than ETC can be transmitted and received to read and write the IC card, the use of the on-board ETC device can be expanded, and not limited to ETC such as credit and prepaid, You will be able to receive various services.
[0012]
The on-board unit of the automatic toll collection system of the present invention includes a switching unit controlled by the control unit to switch reading / writing of information from / to the IC card to one of the IC card reading / writing unit and the encryption processing unit. The configuration is characterized in that:
[0013]
According to this configuration, only one serial line is required to access the IC card side from the control means, and hardware resources can be suppressed to the minimum necessary. , A simple line of binary (H / L) that can be turned off can be easily formed.
[0014]
Further, the on-board device of the automatic toll collection system of the present invention comprises: a transmission / reception unit for transmitting / receiving information to / from the roadside device of the automatic toll collection system; Selection means for selecting which one of the processing means is to read and write information from and to the IC card, wherein the control means controls the read / write of the IC card or the encryption processing means in accordance with the selection of the selection means. Either one of them has a configuration characterized by performing reading / writing control of information with the IC card.
[0015]
With this configuration, by examining the received frequency, it is determined whether the received radio wave is received from a roadside device of ETC or a device other than ETC, and the received radio wave is determined. Since the switching process is performed, appropriate processes can be respectively performed according to the received radio waves, and a plurality of services can be received corresponding to services other than ETC.
[0016]
Further, the on-board device for automatic toll collection system of the present invention is a transmission / reception unit for transmitting / receiving information to / from the roadside device of the automatic toll collection system, and the IC card read / write unit according to identification information included in the data received by the transmission / reception unit. Selection means for selecting which of the encryption processing means is to read and write information from and to the IC card, and wherein the control means is configured to read or write the IC card or the encryption processing in accordance with the selection of the selection means. Either of the means has a configuration characterized by performing read / write control of information with the IC card.
[0017]
With this configuration, based on the identification information included in the received data, it is determined whether the received data is received from a roadside device of the ETC or a device other than the ETC, and the received data is determined. Since the switching process is performed according to the identification information, appropriate processes can be performed according to the received data, and a plurality of services can be received corresponding to services other than ETC.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First Embodiment)
[0019]
As shown in FIG. 1, the vehicle-mounted device 20a of the toll road automatic toll collection system according to the first embodiment of the present invention includes an antenna 21 for transmitting and receiving radio waves, and demodulation of radio waves and modulation of data. A transmission / reception unit 22 for controlling the transmission and reception of information via the card, a card I / F 23 as a slot into which an IC card 30 having a plurality of information is inserted, and a cryptographic process dedicated to an automatic toll collection system (hereinafter referred to as ETC). An encryption processing unit 24 that reads and writes information from and to the IC card 30, an IC card reading and writing unit 25 that reads and writes information from and to the IC card 30 without performing encryption processing, and an encryption processing unit 24 and the IC card reading and writing unit 25. A control unit 26a for controlling reading and writing of information from and to the IC card 30;
[0020]
The antenna 21 performs road-vehicle communication with an ETC roadside device or an external device (not shown) other than the ETC. The transmission / reception unit 22 demodulates the radio wave received by the antenna 21 by the road-vehicle communication, transmits the demodulated data to the control unit 26a, modulates the data transmitted from the control unit 26a, and transmits the data from the antenna 21. is there.
[0021]
The card I / F 23 is for inserting the IC card 30 and electrically connecting the IC card 30 to the encryption processing unit 24 and the IC card read / write unit 25. The encryption processing unit 24 performs encryption processing dedicated to ETC and accesses the IC card 30 to read and write data according to instructions from the control unit 26a. The IC card read / write unit 25 accesses the IC card 30 and reads and writes data according to an instruction from the control unit 26a.
[0022]
The control unit 26a controls the data transmission / reception of the transmission / reception unit 22, and when data is transmitted from the transmission / reception unit 22, determines whether or not the roadside device that has transmitted the data is ETC. If it is determined that the data is the ETC, the data is transmitted from the line A to the encryption processing unit 24, and after the encryption processing, the IC card 30 is accessed to read and write the data. Here, the line A is a serial data transfer line. If it is determined that the roadside device that has transmitted the data is not ETC, the necessary data is read and written from the line B via the IC card read / write unit 25 without passing through the encryption processing unit 24. The line B is a serial data transfer line, like the line A.
[0023]
Next, the operation of the toll road automatic toll collection system according to the present embodiment will be described with reference to a flowchart shown in FIG.
[0024]
First, in the toll road automatic toll collection system, when the radio wave transmitted from the roadside device of the ETC is caught by the antenna 21 of the vehicle-mounted device 20a of the toll road automatic toll collection system (step S11), the transmission / reception unit 22 performs the reception processing. Then, the radio wave received from the antenna 21 is demodulated, and the demodulated data is transmitted to the control unit 26a (step S12).
[0025]
When the data is transmitted from the transmission / reception unit 22, the control unit 26a determines whether the roadside device that has transmitted the data is ETC (step S13). In this case, since the transmitted roadside apparatus is the ETC, a command for acquiring data required for personal authentication for credit settlement such as a credit number is transmitted from the line A to the encryption processing unit 24 (step S21). ). The encryption processing unit 24 reads out data necessary for personal authentication from the IC card 30 under the control of the control unit 26a, encrypts the data, and sends the data to the control unit 26a (step S22). Next, the control unit 26a transmits the data read and encrypted by the encryption processing unit 24 to the transmission / reception unit 22 (step S23), modulates the data with the transmission / reception unit 22, and transmits the data from the antenna 21 to the ETC roadside device. (Step S24).
[0026]
Next, when the antenna 21 of the vehicle-mounted device 20a of the toll road automatic toll collection system catches a radio wave transmitted from a device other than the ETC (step S11), the transmission / reception unit 22 performs a reception process and the radio wave received from the antenna 21. Is demodulated, and the demodulated data is transmitted to the control unit 26a (step S12). Here, when the radio wave is caught, the reception process can be performed by receiving and processing the radio wave at the transmission / reception unit 22 when the radio wave of the frequency whose electric field strength is equal to or higher than the predetermined level is input to the antenna 21.
[0027]
When the data is transmitted from the transmission / reception unit 22, the control unit 26a determines whether the roadside device that has transmitted the data is ETC (step S13). In this case, since the transmitting device is other than ETC, a read / write command of the IC card 30 is transmitted to the IC card read / write unit 25 using the line B without passing through the encryption processing unit 24 (step S31). ). The IC card read / write unit 25 reads / writes necessary data from / to the IC card 30 under the control of the control unit 26a, and sends the read data to the control unit 26a if necessary (step S32). Next, the control unit 26a sends the data read by the IC card read / write unit 25 to the transmission / reception unit 22 (step S33), modulates the data with the transmission / reception unit 22, and transmits the data from the antenna 21 to an external device (step S33). Step S34).
[0028]
Through the above processing, both data for ETC and data other than ETC can be transmitted and received to read / write the IC card, so that not only ETC but also a plurality of services can be received.
(Second embodiment)
[0029]
Next, a toll road automatic toll collection system according to a second embodiment of the present invention will be described.
[0030]
As shown in FIG. 3, the vehicle-mounted device 20b of the toll road automatic toll collection system according to the second embodiment of the present invention includes an antenna 21 for transmitting and receiving radio waves, and demodulation of radio waves and modulation of data. A transmission / reception unit 22 for controlling transmission and reception of information via the card, a card I / F 23 which is a slot into which an IC card 30 having a plurality of functions is inserted, encryption processing dedicated to ETC, and encryption processing for reading and writing information with the IC card 30 The unit 24, an IC card read / write unit 25 that reads and writes information from and to the IC card 30 without going through encryption processing, and controls the encryption processing unit 24 and the IC card read / write unit 25 to read and write information from and to the IC card 30. The control unit 26b and the IC card read / write unit 25 are controlled by the control unit 26b. And a switching unit 27 to allow access to zero.
[0031]
Further, the antenna 21, the transmitting / receiving unit 22, the card I / F 23, the encryption processing unit 24, and the IC card read / write unit 25 of the vehicle-mounted device 20b of the toll road automatic toll collection system are the toll road automatic toll collection system according to the first embodiment. This is the same as the antenna 21, the transmission / reception unit 22, the card I / F 23, the encryption processing unit 24, and the IC card read / write unit 25 of the vehicle-mounted device 20a.
[0032]
The control unit 26b controls the data transmission / reception of the transmission / reception unit 22, and when data is transmitted from the transmission / reception unit 22, determines whether or not the roadside device that transmitted the data is ETC. Then, the switching unit 27 is controlled by the switching control signal, and when it is determined that the ETC is performed, the switching unit 27 is caused to switch the switch to the encryption processing unit 24 side, and only the encryption processing unit 24 is turned on. To perform data processing. When it is determined that the roadside device that has transmitted the data is not ETC, the switch is turned on to the IC card read / write unit 25 side so that only the IC card read / write unit 25 performs data processing. The reading and writing of necessary data with the IC card 30 can be performed directly via the line A without passing through the encryption processing section 24.
[0033]
Next, the operation of the toll road automatic toll collection system according to the present embodiment will be described with reference to a flowchart shown in FIG.
[0034]
First, in the toll road automatic toll collection system, when the antenna 21 of the vehicle-mounted device 20b of the toll road automatic toll collection system catches a radio wave transmitted from the roadside device of the ETC (step S41), the transmission / reception unit 22 performs a reception process. Then, the radio wave received from the antenna 21 is demodulated, and the demodulated data is transmitted to the control unit 26b (step S42).
[0035]
When the data is transmitted from the transmission / reception unit 22, the control unit 26b determines whether or not the roadside device that has transmitted the data is ETC (step S43). In this case, since the transmitted roadside device is the ETC, the switching unit 27 is turned on to the encryption processing unit 24 side so that only the encryption processing unit 24 can perform data processing (step S51). . Then, a command for acquiring data required for personal authentication for credit settlement such as a credit number is transmitted to the encryption processing unit 24 via the line A (step S52). The encryption processing unit 24 reads data necessary for personal authentication from the IC card 30 under the control of the control unit 26b, encrypts the data, and sends the encrypted data to the control unit 26b (step S53). Next, in the control unit 26b, the data read and encrypted by the encryption processing unit 24 is transmitted to the transmission / reception unit 22 (step S54), the transmission / reception unit 22 modulates the data, and transmits the data from the antenna 21 to the ETC roadside device. (Step S55).
[0036]
Next, when the antenna 21 of the vehicle-mounted device 20b of the toll road automatic toll collection system catches a radio wave transmitted from a device other than the ETC (step S41), the transmission / reception unit 22 performs a reception process and the radio wave received from the antenna 21. Is demodulated, and the demodulated data is transmitted to the control unit 26b (step S42).
[0037]
When the data is transmitted from the transmission / reception unit 22, the control unit 26b determines whether or not the roadside device that has transmitted the data is ETC (step S43). In this case, since the transmitting device is other than ETC, the switching unit 27 is turned on to the IC card read / write unit 25 side so that only the IC card read / write unit 25 can process data ( Step S61). Then, a read / write command for the IC card 30 is sent to the IC card read / write unit 25 using the line A without passing through the encryption processing unit 24 (step S62).
[0038]
The IC card read / write unit 25 reads / writes necessary data from / to the IC card 30 under the control of the control unit 26b, and sends the read data to the control unit 26b if necessary (step S63). Next, the control unit 26b sends the data read by the IC card read / write unit 25 to the transmission / reception unit 22 (step S64), modulates the data with the transmission / reception unit 22, and transmits the data from the antenna 21 to an external device (step S64). Step S65).
[0039]
With the above processing, only one serial line, line A, is required to access the IC card 30 from the control unit 26b, and the hardware resources of the control unit can be reduced to the minimum necessary. The switching signal to the switching unit 27 can be a simple binary (H / L) line that can turn on and off a port, and can be easily created.
(Third embodiment)
[0040]
Next, a toll road automatic toll collection system according to a third embodiment of the present invention will be described. The configuration of the toll road automatic toll collection system according to the present embodiment is the same as that of the above-described second embodiment, and a description thereof will be omitted.
[0041]
The present embodiment is characterized in that the control unit 26b acquires the frequency of the radio wave received by the transmission / reception unit 22, and determines whether or not the frequency is ETC data based on the frequency. Normally, in a narrow-area communication system including ETC, seven frequency bands are exclusively assigned as described below, and ETC exclusive frequencies are (1) and (2). Therefore, when receiving the radio waves of the other frequencies (3) to (5), the control unit 26b can determine that it is not for ETC.
▲ 1 ▼ 5795MHz
(2) 5805 MHz
▲ 3 ▼ 5800MHz
▲ 4 ▼ 5775MHz
▲ 5 ▼ 5780MHz
▲ 6 ▼ 5785MHz
▲ 7 ▼ 5790MHz
[0042]
Next, the operation of the toll road automatic toll collection system according to the present embodiment will be described with reference to a flowchart shown in FIG.
[0043]
First, in this toll road automatic toll collection system, the radio wave is caught by the antenna 21 of the on-board unit 20b of the toll road automatic toll collection system 20b (step S71). Is demodulated, and the reception frequency of the received radio wave is transmitted to the control unit 26b together with the demodulated data (step S72).
[0044]
When the data and the reception frequency are transmitted from the transmission / reception unit 22, the control unit 26b determines whether or not the roadside device that has transmitted the data is the ETC based on the reception frequency (step S73). If the reception frequency is 5795 MHz or 5805 MHz, the data is transmitted from the roadside device of ETC, so that the switching unit 27 switches on the switch to the encryption processing unit 24 side, and only the encryption processing unit 24 Data processing is enabled (step S81).
[0045]
Hereinafter, similarly to the above-described embodiment, a command for acquiring data required for personal authentication for credit settlement such as a credit number is transmitted to the encryption processing unit 24 via the line A (step S82). The encryption processing unit 24 reads data necessary for personal authentication from the IC card 30 under the control of the control unit 26b, encrypts the data, and sends the data to the control unit 26b (step S83). Next, in the control unit 26b, the data read and encrypted by the encryption processing unit 24 is transmitted to the transmission / reception unit 22 (step S84), and the transmission / reception unit 22 modulates the data and transmits the data from the antenna 21 to the roadside device of the ETC. (Step S85).
[0046]
Further, if the reception frequency transmitted from the transmission / reception unit 22 to the control unit 26b is other than 5795 MHz and 5805 MHz, that is, 5800 MHz, 5775 MHz, 5780 MHz, 5785 MHz, 5790 MHz, etc., the data is transmitted from a device other than ETC. (Step S73), the switching unit 27 switches on the switch to the IC card read / write unit 25 side, so that only the IC card read / write unit 25 can process data (step S91).
[0047]
Hereinafter, similarly to the above embodiment, the read / write command of the IC card 30 is transmitted to the IC card read / write unit 25 using the line A without passing through the encryption processing unit 24 (step S92). The IC card read / write unit 25 reads / writes necessary data from / to the IC card 30 under the control of the control unit 26b, and sends the read data to the control unit 26b if necessary (step S93). Next, the control unit 26b sends the data read by the IC card read / write unit 25 to the transmission / reception unit 22 (step S94), modulates the data with the transmission / reception unit 22, and transmits the data from the antenna 21 to an external device (step S94). Step S95).
[0048]
By checking the frequency received by the control unit 26b by the above processing, it is determined whether the received radio wave is received from the roadside apparatus of ETC or received from a device other than ETC. Since the switching process is performed according to the received radio waves, appropriate processing can be performed according to the received radio waves, and a plurality of services can be received in response to services other than ETC.
(Fourth embodiment)
[0049]
Next, a toll road automatic toll collection system according to a fourth embodiment of the present invention will be described. The configuration of the toll road automatic toll collection system according to the present embodiment is the same as that of the above-described second embodiment, and a description thereof will be omitted.
[0050]
In the present embodiment, the control unit 26b converts the data received by the transmission / reception unit 22 from the data packet called FCMC (Frame Control Message Channel) to “AID” indicated in the SC (Service Application Information Field). (Application identifier), and determines whether or not the data being received is ETC data. The AID has a type from 0 to 31, and the ETC is defined as “AID = 14”. FIG. 6 shows a data format of FCMC.
[0051]
Next, the operation of the toll road automatic toll collection system according to the present embodiment will be described with reference to a flowchart shown in FIG.
[0052]
First, in this toll road automatic toll collection system, when a radio wave is caught by the antenna 21 of the on-board unit 20b of the toll road automatic toll collection system 20b (step S101), the transmission / reception unit 22 performs reception processing, and the radio wave received from the antenna 21 Is demodulated, and the demodulated data is transmitted to the control unit 26b (step S102).
[0053]
When the data is transmitted from the transmission / reception unit 22, the control unit 26b determines whether or not the roadside device that has transmitted the data is the ETC based on the FCMC data packet (step S103). Here, if the “AID” indicated in the FCMC SC is “14”, it is data transmitted from the roadside device of the ETC, so the switching unit 27 is switched on to the encryption processing unit 24 side. , So that only the encryption processing unit 24 can perform data processing (step S111).
[0054]
Hereinafter, similarly to the above-described embodiment, a command to acquire data necessary for personal authentication for credit settlement such as a credit number is transmitted to the encryption processing unit 24 via the line A (step S112). The encryption processing unit 24 reads out data necessary for personal authentication from the IC card 30 under the control of the control unit 26b, encrypts the data, and sends it to the control unit 26b (step S113). Next, the control unit 26b transmits the data read and encrypted by the encryption processing unit 24 to the transmission / reception unit 22 (step S114), modulates the data with the transmission / reception unit 22, and transmits the modulated data from the antenna 21 to the ETC roadside device. (Step S115).
[0055]
Further, the control unit 26b checks the FCMC data packet of the data transmitted from the transmission / reception unit 22, and finds that the “AID” indicated in the SC is other than “14”, that is, “0” to “13” or “15”. Is “31”, the data is transmitted from a device other than the ETC (determined in step S103), so that the switching unit 27 switches on the switch to the IC card reading / writing unit 25 side, Only the read / write unit 25 can process data (step S121).
[0056]
Hereinafter, similarly to the above embodiment, the read / write command of the IC card 30 is transmitted to the IC card read / write unit 25 using the line A without passing through the encryption processing unit 24 (step S122). The IC card read / write unit 25 reads / writes necessary data from / to the IC card 30 under the control of the control unit 26b, and sends the read data to the control unit 26b if necessary (step S123). Next, the control unit 26b sends the data read by the IC card read / write unit 25 to the transmission / reception unit 22 (step S124), modulates the data with the transmission / reception unit 22, and transmits the data from the antenna 21 to an external device (step S124). Step S125).
[0057]
By checking the content of the data received by the control unit 26b by the above processing, it is determined whether the received data is received from the roadside device of ETC or received from a device other than ETC. Since the switching process is performed according to the content of the received data, appropriate processing can be performed according to the received data, and a plurality of services can be received in response to services other than ETC.
[0058]
【The invention's effect】
As described above, the present invention relates to an IC card including an encryption processing unit that reads and writes an IC card and performs an encryption process dedicated to ETC, and an IC card reading and writing unit that reads and writes an IC card separately from the encryption processing unit. By controlling the reading and writing of information, both ETC data and non-ETC data can be sent and received to read and write IC cards, expanding the use of ETC on-board equipment, credit and prepaid, etc. The present invention is not limited to ETC and ETC, and can provide an onboard automatic toll collection system having an excellent effect that various services can be received.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a vehicle-mounted device for an automatic toll collection system in a toll road according to a first embodiment of the present invention;
FIG. 2 is a flowchart showing the operation of the toll road automatic toll collection system according to the first embodiment of the present invention;
FIG. 3 is a block diagram showing a vehicle-mounted device for automatic toll collection in a toll road according to a second embodiment of the present invention;
FIG. 4 is a flowchart showing the operation of the toll road automatic toll collection system according to the second embodiment of the present invention;
FIG. 5 is a flowchart showing the operation of the toll road automatic toll collection system according to the third embodiment of the present invention.
FIG. 6 is a data structure diagram showing a data format of FCMC (Frame Control Message Channel).
FIG. 7 is a flowchart showing the operation of the toll road automatic toll collection system according to the fourth embodiment of the present invention.
FIG. 8 is a block diagram showing a conventional vehicle-mounted device.
[Explanation of symbols]
1 road machine
2 OBE (DSRC OBE)
3 Antenna
4,5 electronic circuit
6 Display
7 Buzzer section
8 Circuit board
9 IC card storage
9a Opening
10 Contact part
11,12 Temperature sensor
13 IC card
14 Electrode section
20a, 20b ETC OBE
21 Antenna
22 Transceiver
23 Card I / F
24 Cryptographic processing unit
25 IC card read / write unit
26a, 26b control unit
27 Switching unit
30 IC card

Claims (4)

An IC card having a plurality of information and an IC card reading / writing means for reading / writing information;
Cryptographic processing means for reading and writing information from and to the IC card and performing cryptographic processing for an automatic toll collection system;
An on-board automatic toll collection system, comprising: a control unit that controls reading and writing of information from and to the IC card with respect to the IC card reading and writing unit and the encryption processing unit. 2. The automatic apparatus according to claim 1, further comprising a switching unit controlled by the control unit to switch reading / writing of information from / to the IC card to one of the IC card reading / writing unit and the encryption processing unit. In-vehicle toll collection system. Transmitting and receiving means for transmitting and receiving information to and from the roadside device of the automatic toll collection system;
Selecting means for selecting which of the IC card read / write means or the encryption processing means reads / writes information from / to the IC card according to the reception frequency of the radio wave received by the transmission / reception means,
2. The information processing system according to claim 1, wherein the control unit controls one of the IC card read / write unit and the encryption processing unit to read / write information from / to the IC card in accordance with the selection by the selection unit. Item 2. An automatic toll collection system vehicle-mounted device according to item 2. Transmitting and receiving means for transmitting and receiving information to and from the roadside device of the automatic toll collection system;
Selecting means for selecting which of the IC card reading / writing means or the encryption processing means reads / writes information from / to the IC card according to identification information included in the data received by the transmitting / receiving means,
2. The information processing system according to claim 1, wherein the control unit controls one of the IC card read / write unit and the encryption processing unit to read / write information from / to the IC card in accordance with the selection by the selection unit. Item 2. An automatic toll collection system vehicle-mounted device according to item 2.

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