JP2009301388A - Dsrc in-vehicle unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a DSRC in-vehicle unit for confirming the expiration date of an inserted IC card. <P>SOLUTION: The DSRC in-vehicle unit is used in short-range communication system of intelligent transport system, and provided with: an antenna and a radio part for communicating with road side radio equipment; a data processing part for processing reception data from the radio part; a security processing part for recognizing personal information of an IC card and the information of an expiration date; a human machine interface part for notifying a driver of the information; and an external interface part for communicating with external equipment with a predetermined protocol. The data processing part is provided with: a date and time recognition part for recognizing the current date and time; a card expiration date recognition part for recognizing the expiration date; and a remaining period calculation part for calculating a period until the expiration date of the IC card from the data of the date and time recognition part and the card expiration date recognition part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a DSRC in-vehicle device used in a narrow-area communication system, and is a system for notifying a driver of information related to an expiration date of an IC card to be used.

  The short-range communication (DSRC) system is a system that uses a microwave band radio wave and performs communication only within a limited range on the road. By performing wireless communication between the roadside equipment provided on the road and the DSRC on-board equipment provided on the vehicle side, and performing various data exchanges, services such as toll collection and road information provision are provided, and the driver and It is a system that brings benefits to managers of roads, parking lots, etc.

  In the DSRC system, various applications such as an automatic toll collection (ETC) system on toll roads, toll collection at a gas station, drive-through, and provision of traffic information are considered. Among them, as represented by environmental road pricing, etc., plan discounts on tolls for vehicles that have passed a specific route, and plan limited-time discounts and customer discounts for other applications. In the future, it is planned that not only charging but discounts will be used in DSRC settlement.

  Such fee settlement is generally performed based on the card information inserted into the DSRC in-vehicle device by an IC card issued by a credit company. Therefore, the card information is encrypted for security, and the DSRC in-vehicle device cannot decrypt the card information. Normally, an IC card used in a DSRC system has an expiration date, and the IC chip of the IC card also has the information, but since the DSRC OBE cannot decode the information on the IC card, the expired IC Even a card cannot grasp it.

  Moreover, since the DSRC in-vehicle device generally used does not always have date and time data, even if the expiration date of the IC card can be grasped, it cannot be determined whether or not the IC card can be used. The driver visually confirms the expiration date written on the IC card and compares it with the current date and time to determine whether or not the IC card can be used (for example, patent document) 1 or 2).

JP 2006-79330 A JP 2007-232693 A

However, there are many users who usually leave the IC card on the DSRC in-vehicle device, and there are few opportunities to see the expiration date of the IC card, and the ETC gate does not open by using it at the ETC gate without noticing the expiration date. Often experienced problems.
In addition, even if the DSRC OBE can grasp the expiration date of the IC card, the DSRC OBE does not have a function to always keep track of the date and time, and similarly, the user cannot notice the expiration date of the IC card and experience the same problem. There was something to do.

  An object of the present invention is to provide a DSRC in-vehicle device that confirms the expiration date of an inserted IC card.

  The DSRC in-vehicle device according to the present invention is used in a narrow area communication system of an intelligent road traffic system, and performs data processing for processing received data from the radio unit and an antenna and radio unit for communicating with roadside radio equipment. A security processing unit for recognizing personal information and expiration date information of the IC card, a human machine interface unit for notifying the driver of information, and an external interface for communicating with an external device using a predetermined protocol The data processing unit includes a date recognition unit that recognizes the current date, a card expiration date recognition unit that recognizes the expiration date, the date recognition unit, and the card expiration date recognition. Deadline calculation to calculate the period from the data with the card to the expiration date of the IC card It has a part, a.

  The effect of the on-board DSRC device according to the present invention is to determine whether or not the IC card currently inserted and used in the on-board DSRC device can be used from the recognition result of the expiration date of the IC card and the recognition result of the current date and time. Since it is implemented in the term calculation unit and the result is notified to the driver from the HMI unit, it is not necessary for the driver to visually check the expiration date of the IC card and determine whether or not it can be used. It is possible to determine the expiration date with the IC card inserted in the device, and notify the driver of the result, thereby eliminating the inconvenience to the driver using the expired IC card. .

Embodiment 1 FIG.
FIG. 1 is a functional block diagram of a DSRC on-vehicle device according to Embodiment 1 of the present invention.
The DSRC in-vehicle device 13 according to Embodiment 1 of the present invention includes an antenna 1 that communicates with a roadside wireless device 15, a radio unit 2 that converts radio waves received by the antenna 1 into received data, and received data from the radio unit 2 A data processing unit 3 for processing information, a security processing unit 4 for recognizing information of an IC card 5 having information such as personal information and an expiration date, a human machine interface unit for notifying the driver of information (hereinafter referred to as an HMI unit) 6), and an external interface unit (hereinafter referred to as an external IF unit) 10 for communicating with the external device 12 using a predetermined protocol.

The security processing unit 4 recognizes the IC card information stored in the IC card 5 and communicates only the expiration date data of the recognized IC card information to the data processing unit 3 without encryption.
The HMI unit 6 includes a speaker and a display unit (not shown) and notifies the driver by voice or display.

The data processing unit 3 includes a date recognition unit 7 that recognizes the current date and time, a card expiration date recognition unit 8 that recognizes IC card expiration date data stored in the IC card 5, a date recognition unit 7 and a card expiration date recognition unit 8 is provided with a time limit calculation unit 9 for calculating a period until the expiration date of the IC card 5 from the data of 8.
In normal DSRC, the date / time data is included in the communication data with the roadside wireless device 15, so the date / time recognition unit 7 according to Embodiment 1 of the present invention connects the antenna 1 and the wireless unit 2 from the roadside wireless device 15. The current date and time is grasped from the date and time data included in the communication data received via the network.
The card expiration date recognition unit 8 can recognize the expiration date of the IC card 5 by decoding the encrypted expiration date data from the security processing unit 4. Thereby, the personal information safety of the IC card 5 is increased.
The expiration date calculation unit 9 calculates a period until the expiration date of the IC card 5 from the current date / time recognized by the date / time recognition unit 7 and the expiration date of the IC card 5 recognized by the card expiration date recognition unit 8. Next, the time limit calculation unit 9 determines whether or not the IC card 5 currently inserted and used in the DSRC in-vehicle device 13 is usable.

The HMI unit 6 determines whether the time limit calculation unit 9 determines whether or not the IC card 5 that is currently inserted into the DSRC in-vehicle device 13 can be used, as determined by the time limit calculation unit 9, such as voice or display. The driver is notified using the HMI.
The HMI unit 6 may notify the expiration date according to the result of the determination as to whether or not it is usable, whether it is near the expiration date, whether it is near the expiration date, how many days remain until the expiration date, or the expiration date. good.
Further, the HMI unit 6 may notify the driver of the result of the determination as to whether or not the device can be used, by voice or display from a speaker or a display unit of an external device such as a navigation system.
In addition, the HMI unit 6 determines whether it is within the expiration date or near the expiration date according to the result of the determination as to whether it can be used by voice or display from a speaker or display unit of an external device such as a navigation system. The number of days remaining until the expiration date or the expiration date may be notified.

  The DRSC vehicle-mounted device 13 according to Embodiment 1 of the present invention is used by the IC card 5 that is currently inserted and used in the DSRC on-vehicle device 13 based on the recognition result of the expiration date of the IC card 5 and the current date / time recognition result. Whether or not it is possible is determined in the time limit calculation unit 9 and the result is notified from the HMI unit 6 to the driver. There is no need to make a determination, and the expiration date can be determined with the IC card 5 inserted in the DSRC on-vehicle device 13. By using the IC card 5 whose expiration date has expired, the driver is notified of the result. , No inconvenience to the driver.

  Further, since the current date and time is grasped from the date and time data included in the communication data from the roadside wireless device 15, even when the DSRC on-vehicle device 13 is operating stand-alone and the date and time data cannot be obtained from the inside, The date and time can be grasped, and a determination result such as whether or not the IC card 5 can be used can be notified to the driver by the HMI unit 6 every time communication with the DSRC gate is performed.

Embodiment 2. FIG.
FIG. 2 is a functional block diagram of a DSRC on-vehicle device according to Embodiment 2 of the present invention.
The DSRC on-vehicle device 13B according to the second embodiment of the present invention is different from the DSRC on-vehicle device 13 according to the first embodiment of the present invention in that the data processing unit 3B is the same except for the above. The description is omitted.
Since the data processing unit 3B according to the second embodiment of the present invention is different from the data processing unit 3 according to the first embodiment of the present invention in that the date and time recognition unit 7B is otherwise the same, the same reference numerals are used for the same parts. The description is omitted.
The DSRC in-vehicle device 13B is connected to various external devices 12 on the vehicle side by USB communication, 232C communication, CAN communication, or the like, and among them, as the external device 12 having date and time data as communication data, For example, there are navigation systems and drive recorders. The date / time recognition unit 7B according to the second embodiment of the present invention acquires date / time data by communicating with the navigation system and the drive recorder via the external IF unit 10 in accordance with a predetermined protocol, and obtains the current date / time. By grasping, it is possible to notify the driver of a determination result such as whether or not the IC card 5 is usable.

  Since the DSRC on-vehicle device 13B according to Embodiment 2 of the present invention grasps the current date and time from the date and time data included in the communication data from the external device 12, the DSRC on-vehicle device 13B operates stand-alone and the date and time from the inside. Even if data is not obtained and communication with the roadside wireless device 15 is possible, the current date and time can be grasped, and the IC card 5 can be used by the driver by the HMI unit 6 every time communication is performed with the DSRC gate. Whether or not the determination result can be notified.

  When the external device 12 has a clock function, the external IF unit 10 notifies the external device 12 of the expiration date grasped by the card expiration date recognition unit 8, and the IC card 5 is used in the external device 12. It may be determined whether or not it is possible, and the driver may be notified of the result using an HMI (not shown) of the external device 12.

Embodiment 3 FIG.
FIG. 3 is a functional block diagram of a DSRC on-vehicle device according to Embodiment 3 of the present invention.
The DSRC on-vehicle device 13C according to Embodiment 3 of the present invention is different from the DSRC on-vehicle device 13 according to Embodiment 1 of the present invention in that a radio timepiece 11 as a clock function is added, and the data processing unit 3C is different accordingly. Since the other parts are the same, the same parts are denoted by the same reference numerals and the description thereof is omitted.
The data processing unit 3C according to the third embodiment of the present invention is the same as the data processing unit 3 according to the first embodiment of the present invention except that the data processing unit 3 is different from the date and time recognition unit 7C. The description is omitted.
The radio timepiece 11 according to Embodiment 3 of the present invention is supplied with power every time the DSRC on-board unit 13C is turned on, and receives radio waves from the transmitting station of the radio timepiece system to adjust the time.
The date / time recognition unit 7C according to the third embodiment of the present invention captures the current date / time from the radio clock 11.

The DSRC on-vehicle device 13C according to Embodiment 3 of the present invention has a built-in radio timepiece 11, and the radio timepiece 11 adjusts the time each time the DSRC on-vehicle device 13C is turned on. Even if the battery is not backed up, the current date and time can be recognized.
If the built-in clock is backed up by a battery, the clock keeps counting even when the power of the DSRC in-vehicle device 13C is cut off.

Embodiment 4 FIG.
FIG. 4 is a functional block diagram of the DSRC on-vehicle device according to Embodiment 4 of the present invention.
The DSRC on-vehicle device 13D according to Embodiment 4 of the present invention is different from the DSRC on-vehicle device 13 according to Embodiment 1 of the present invention in that the data processing unit 3E and the security processing unit 4D are the same. The same reference numerals are attached to the parts, and the description is omitted.
The data processor 3D according to the fourth embodiment of the present invention is different from the data processor 3 according to the third embodiment of the present invention in that the card expiration date recognizing unit 8D is the same. The same reference numerals are given and description thereof is omitted.
The security processing unit 4D performs a specific encryption process determined in advance with the data processing unit 3D on the expiration date data in the recognized IC card information, and then communicates to the data processing unit 3D.
The data processing unit 3D can only decrypt the expiration date data, and can decrypt the encrypted data from the security processing unit 4D and recognize the expiration date of the IC card 5 by the card expiration date recognition unit 8D.

  The DSRC on-vehicle device 13D according to the fourth embodiment of the present invention has the same effect as the DSRC on-vehicle device 13 according to the first embodiment of the present invention, and is determined between the security processing unit 4D and the data processing unit 3D. Since the data subjected to the specific encryption processing is sent from the security processing unit 4D to the data processing unit 3D, the cipher currently used in the IC card 5 and the security processing unit 4D can be opened without opening the IC card 5. Security can be ensured and the personal information safety of the IC card 5 can be maintained.

Embodiment 5 FIG.
FIG. 5 is a functional block diagram of a DSRC on-vehicle device according to Embodiment 5 of the present invention.
The DSRC on-vehicle device 13E according to Embodiment 5 of the present invention is different from the DSRC on-vehicle device 13 according to Embodiment 1 of the present invention in that the data processing unit 3E and the HMI unit 6E are the same. The same reference numerals are given to the portions, and the description is omitted.
The data processing unit 3E according to the fifth embodiment of the present invention is the same as the data processing unit 3 according to the first embodiment of the present invention except that the guidance execution period storage unit 14 is added and the rest is the same. Are denoted by the same reference numerals and description thereof is omitted.
The guidance execution period storage unit 14 stores a predetermined value.
The HMI unit 6E determines whether or not the period until the expiration date of the IC card 5 calculated by the time limit calculation unit 9 is smaller than the value stored in the guidance execution period storage unit 14, and until the time limit expires. Only when the period is less than the value, the determination result of whether or not the IC card 5 currently inserted and used in the DSRC on-vehicle device 13E is usable is notified.
The value may be, for example, 3 months. Normally, it is preferable to start the guidance from 3 months before, since a new credit card will be sent to the credit card at least 3 months before the expiration date.

  The DSRC in-vehicle device 13E according to Embodiment 5 of the present invention has at least several years until the expiration date expires when the new IC card 5 immediately after the expiration date is updated is inserted. Since it is not necessary to provide guidance on the deadline, it is possible to perform comfortable driving without providing guidance at unnecessary times.

  Note that an arbitrary value may be input from the HMI unit 6E, the input value may be stored in the guidance execution period storage unit 14, and the value may be used to determine whether or not to notify the expiration date. Thus, since the driver can change the timing for starting the notification about the expiration date, the notification is started from the timing according to the driver's request. If the driver does not input an arbitrary period, the minimum period may be stored in a predetermined period in the guidance execution period storage unit 14, for example, one month. If you forget it, you can be surely notified.

The timing at which the DSRC in-vehicle device 13 notifies the expiration date of the IC card 5 is usually when the power is turned on and when the power is turned off.
In addition, there are some that notify at the timing such as when communicating with the road device for confirmation in front of the toll gate, but there are many cases where the road device for confirmation is not installed, and as in the present invention, ETC actual By notifying when the gate is passed, the IC card expiration date can be surely notified.

It is a functional block diagram of the DSRC onboard equipment which concerns on Embodiment 1 of this invention. It is a functional block diagram of the DSRC onboard equipment which concerns on Embodiment 2 of this invention. It is a functional block diagram of the DSRC onboard equipment which concerns on Embodiment 3 of this invention. It is a functional block diagram of the DSRC onboard equipment which concerns on Embodiment 4 of this invention. It is a functional block diagram of the DSRC onboard equipment which concerns on Embodiment 5 of this invention.

Explanation of symbols

  1 antenna, 2 radio unit, 3 3B, 3C, 3D, 3E data processing unit, 4, 4D security processing unit, 5 IC card, 6, 6E human machine interface (HMI) unit, 7, 7B, 7C 8, 8D card expiration date recognition unit, 9 expiration date calculation unit, 10 external interface (IF) unit, 11 radio timepiece, 12 external device, 13, 13B, 13C, 13D, 13E DSRC on-board unit, 14 guidance implementation period Storage unit, 15 roadside wireless device.

Claims (12)

An antenna and a wireless unit used in a narrow area communication system of an intelligent road traffic system, communicating with a roadside wireless device, a data processing unit for processing received data from the wireless unit, and personal information possessed by an IC card In a DSRC on-board unit having a security processing unit for recognizing expiration date information, a human machine interface unit for notifying the driver of information, and an external interface unit for communicating with an external device using a predetermined protocol ,
The data processing unit includes a date recognition unit that recognizes the current date, a card expiration date recognition unit that recognizes the expiration date, and the validity of the IC card from data of the date recognition unit and the card expiration date recognition unit. A DSRC in-vehicle device, comprising: a time limit calculation unit that calculates a period until the time limit expires.   The DSRC on-vehicle device according to claim 1, wherein the date and time recognition unit recognizes date and time data from communication data with the roadside wireless device.   The DSRC on-vehicle device according to claim 1, wherein the date and time recognition unit recognizes date and time data from communication data with the external device.   The DSRC on-vehicle device according to claim 1, wherein the date and time recognition unit recognizes date and time data from a built-in clock.   The DSRC on-vehicle device according to claim 4, wherein the built-in timepiece is a radio timepiece.   6. The card expiration date recognizing unit recognizes an expiration date of the IC card from unencrypted plain text data sent from the security processing unit. The DSRC in-vehicle device described.   The card expiration date recognizing unit has a decryption function and recognizes the expiration date of the IC card by decrypting the encrypted data sent from the security processing unit. The DSRC on-vehicle device according to any one of 5.   The DSRC on-vehicle device according to any one of claims 1 to 7, wherein the human machine interface unit notifies a driver of information related to an expiration date of the IC card.   The DSRC in-vehicle device according to claim 8, wherein the human machine interface unit notifies the driver that the expiration date of the IC card is near.   The DSRC in-vehicle device according to claim 8, wherein the human machine interface unit notifies the driver of the remaining days of the expiration date of the IC card. Furthermore, it has a guidance execution period storage unit for storing a value used when determining the time to start notification of contents related to the expiration date of the IC card,
The said human machine interface part starts notification, when the remaining period until an expiration date becomes smaller than the value memorize | stored in the said guidance implementation period memory | storage part, The notification is any one of Claims 1 thru | or 10 characterized by the above-mentioned. The DSRC in-vehicle device described in 1.   The DSRC on-vehicle device according to claim 11, wherein the value stored in the guidance execution period storage unit can be changed by a driver.

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