JP3870786B2 - In-vehicle device for narrow area communication - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an in-vehicle device for narrow area communication corresponding to a plurality of applications.
[0002]
[Prior art]
A roadside device installed on the road side using light or radio waves for the purpose of providing road traffic information such as position information and traffic jams to the driver of the vehicle traveling on the road, and an in-vehicle device mounted on the vehicle A dedicated short range communication (DSRC) that performs road-to-vehicle communication between the two has been proposed. As an example, an automatic toll collection system (hereinafter referred to as ETC) has already been put into practical use.
[0003]
ETC makes it possible to automatically pay tolls using wireless communication between a roadside radio device installed at a toll gate and the vehicle when the vehicle passes through a toll gate such as a toll road. System.
[0004]
This system has a device for performing wireless communication with a roadside device on the vehicle side and exchanging information necessary for toll collection. This is referred to as an in-vehicle device. The in-vehicle device is provided with an IC card interface, and by inserting the IC card into the in-vehicle device, the in-vehicle device can read out the recorded content of the IC card in a non-contact manner by external wireless communication or the like, Information can be written.
[0005]
[Problems to be solved by the invention]
By the way, the conventional application for narrow area communication (hereinafter referred to as DSRC) is only an ETC (automatic toll collection) system. Recently, various applications using the DSRC technology of ETC are being studied. That is, multi-applications for in-vehicle devices are being promoted.
[0006]
However, if the in-vehicle device is made into a multi-application, there are a plurality of IC cards depending on various uses, and the IC card to be used is mistaken. There may be a problem that it is inserted in
[0007]
The present invention has been made in order to solve such a conventional problem, and the object of the present invention is to reliably use an IC card to be used even when an in-vehicle device is made multi-application. An object of the present invention is to provide an in-vehicle device for narrow area communication.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present application transmits / receives a signal to / from a roadside device installed in a vehicle, corresponding to a plurality of applications, and installed in the vicinity of the vehicle traveling path. In the in-vehicle device for narrow area communication, an IC card reading unit that reads data of each IC card prepared for each application that communicates with the roadside device, and each IC card serves as the IC card reading unit. Counting means for counting the number of insertions for each IC card, storage means for storing the count value by the counting means, and the IC card reading means when the power is turned on for the in-vehicle device for narrow area communication When no card is inserted, the IC card having the largest count value is not inserted in the IC card reading means. And notification means for notifying, characterized by comprising a.
[0009]
The invention according to claim 2 is an in-vehicle device for narrow area communication that is mounted on a vehicle, supports a plurality of applications, and transmits and receives signals to and from a roadside device installed in the vicinity of the vehicle traveling path. An IC card reading unit that reads data of each IC card prepared for each application that communicates with the roadside device, and the IC card reading unit that inserts the IC card into and between the roadside device Thus, when communication of the application corresponding to the IC card is performed, the counting means for counting the number of communication of the application for each IC card, the storage means for storing the count value by the counting means, and the narrow If the IC card is not inserted in the IC card reading means when the on-vehicle device for wide area communication is turned on, the card The most common IC card cement value is characterized by comprising a notification means for notifying that not inserted into the IC card reader.
[0012]
According to a third aspect of the present invention, the notification means has the highest count value when the IC card is not inserted into the IC card reading means when the vehicle-mounted device for narrow area communication is turned on. Notifying that the IC card is not inserted into the IC card reading means, and subsequently notifying that the IC cards having a large count value are not inserted into the IC card reading means .
[0013]
According to a fourth aspect of the present invention, when the IC card inserted into the IC card reading unit is not the IC card having the largest count value stored in the storage unit, the notifying unit indicates this fact. It is characterized by notifying.
[0014]
According to a fifth aspect of the present invention, the notification means is either when the in-vehicle device for narrow area communication is turned on or when a title of an application corresponding to the IC card inserted into the IC card reading means is called. Then, the title of the application corresponding to the IC card having the largest count value is displayed or outputted as audio.
[0015]
【The invention's effect】
In the invention of claim 1, since the number of times each IC card is inserted into the IC card reading means is counted and this count value is stored, it is possible to recognize an IC card having a high use frequency. Further, when the IC card is not inserted when the power is turned on, the user is notified that the IC card corresponding to the most frequently used application is not inserted, so that the user can recognize it immediately. Therefore, it is possible to warn that the user has forgotten to insert the IC card of the application that is most frequently used, and to prompt the user to insert the desired IC card without fail.
[0016]
In the invention of claim 2, when communication is performed with the roadside device, the number of times for each application that communicated is counted, and this count value is stored, so that frequently used applications are recognized. Can do. Further, when the IC card is not inserted when the power is turned on, the user is notified that the IC card corresponding to the most frequently used application is not inserted, so that the user can recognize it immediately. Therefore, it is possible to warn that the user has forgotten to insert the IC card of the application that is most frequently used, and to prompt the user to insert the desired IC card without fail.
[0019]
In the invention of claim 3 , when the IC card is not inserted when the power is turned on, the order of the usage frequency of the applications used in the past is notified, so that the user can recognize this immediately. In particular, when the order of frequency of use is notified by voice output, the voice is output in order from the application that is used most frequently, thereby prompting the user to insert a desired IC card and enabling the use of the application. be able to. Further, by first listening to the fact that the IC card of the most frequently used application is not inserted, the user can quickly and surely insert the IC card of the frequently used application into the IC card reading means.
[0020]
In the invention of claim 4 , the user can be prompted to insert the IC card of the application with the highest use frequency, and the use of the application with the highest use frequency can be made possible.
[0021]
In the invention of claim 5 , when only one application title can be displayed, the application with the highest use frequency is displayed or voice output, so that the application having the highest importance for the user is immediately recognized. Can do.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an in-vehicle device for narrow area communication according to each embodiment of the present invention described below. As shown in the figure, the in-vehicle device 1 for narrow area communication transmits and receives signals to and from the roadside device 2 installed in the vicinity of the traveling road of the vehicle. A control circuit 3 that generally controls the communication, a communication processing unit 4 that transmits and receives signals to and from the roadside device 2, and a power supply circuit 5.
[0023]
Further, an IC card interface (IC card reading means) 6 that reads data stored in the IC card 12 corresponding to each application, and a card switch 7 that detects that the IC card 12 is inserted into the IC card interface 6. And a cryptographic processing circuit 8.
[0024]
Moreover, it has the operation part 9 which performs various operation by an operator, the display part 10 which displays various data, and the audio | voice output part 11.
[0025]
The control circuit 3 includes a CPU 21, which is a control center, an EEPROM (storage means) 22, a RAM 23, and a ROM 24. Further, the CPU 21 has the IC card 12 inserted into the IC card interface 6. It has a counter unit (counting means) 21a that counts the number of times and the number of communications of each application. Further, an ignition on / off signal and a vehicle speed pulse are input to the CPU 21.
[0026]
The communication processing unit 4 includes a transmission / reception unit 31, an RF circuit 32, a modem circuit 33, and an antenna 34. In the communication processing unit 4, the radio wave transmitted from the roadside device 2 is received by the antenna 34, the radio wave is detected by the RF circuit 32, and then demodulated by the modem circuit 33 and output to the control circuit 3. .
[0027]
The control circuit 3 is connected to a navigation system 41 mounted on the vehicle, and the navigation system 41 includes a GPS antenna 42 and a display 43. The control circuit 3 analyzes the data (demodulated data) sent from the roadside device 2 and determines which application the data corresponds to. The types of applications include ETC (automatic toll collection system), parking fee collection, traffic information, traffic jam information, regional information, music / image distribution information distribution service, Internet connection service, and the like.
[0028]
Further, the control circuit 3 accesses the IC card 12 and determines which application the IC card 12 inserted into the IC card interface 6 corresponds to. Further, processing for accessing the IC card 12 is performed via the cryptographic processing circuit 8. Depending on the application, data may be processed by the control circuit 3 without using the IC card 12.
[0029]
The cryptographic processing circuit 8 performs mutual authentication between the IC card 12 and the roadside device 2, and has a function of decrypting encrypted data and encrypting communication data. Further, it has a function of reading from the IC card 12 and writing to the IC card 12, and transfers data received from the roadside device 2 to the IC card 12 via the IC card interface 6. Is recorded on a recording medium.
[0030]
The IC card 12 corresponds to each of the above-described applications, and there is one corresponding to a plurality of applications (multi-application) and one corresponding to only one application (single application).
[0031]
When the insertion of the IC card 12 is detected, the card switch 7 outputs a signal indicating that the IC card 12 has been detected to the control circuit 3.
[0032]
Next, the operation of the present embodiment configured as described above will be described. FIG. 2 is a flowchart showing the operation of the in-vehicle apparatus 1 for narrow area communication according to the first embodiment of the present invention.
[0033]
First, in step S101, it is determined whether or not the IC card 12 has been inserted into the IC card interface 6. This is performed by a detection signal from the card switch 7. When the insertion of the IC card 12 is detected in step S102, the application information (type) assigned to the IC card 12 is read in step S103.
[0034]
Thereafter, in step S104, it is determined whether or not the application reading is normal. If it is normal, the application type supported by the IC card 12 is confirmed in step S105.
[0035]
In step S106, the counter unit 21a counts the number of times the application supported by the IC card 12 is used, and increments the count value. That is, the count value “AP ICCCNTx” is set to “AP ICCCNTx + 1”. However, “x” is an arbitrary application number. Thereafter, the value of “AP ICCCNTx” is recorded in the EEPROM 22 in the process of step S107.
[0036]
In this way, the number of uses of the IC card 12 is counted, and data of this count value is recorded in the EEPROM 22.
[0037]
Thus, in the in-vehicle apparatus 1 for narrow area communication according to the present embodiment, the number of times when the IC card 12 corresponding to various applications is inserted into the IC card interface 6 and the application type is read out. Therefore, it is possible to recognize an IC card 12 that is frequently used (that is, an application that is frequently used).
[0038]
Next, a second embodiment of the present invention will be described. FIG. 3 is a flowchart showing the operation of the in-vehicle apparatus 1 for narrow area communication according to the second embodiment.
[0039]
First, the control circuit 3 determines whether or not communication with the roadside device 2 is performed in the process of step S201. In step S202, if communication is being performed, the type of the application that communicated is confirmed.
[0040]
Thereafter, in step S203, the counter unit 21a counts the number of communication of this application and increments the count value. That is, the count value “AP ICCCNTx” is set to “AP ICCCNTx + 1”. In step S204, the value of “AP ICCCNTx” is recorded in the EEPROM 22.
[0041]
Thus, when communication is performed with the roadside device 2, the number of communication times of the application relating to this communication is counted, and data of the count value is recorded in the EEPROM 22.
[0042]
Thus, in the in-vehicle apparatus 1 for narrow area communication according to the second embodiment, when the communication of various applications is performed, the number of times is counted, so that an application with a high communication frequency can be recognized. it can.
[0043]
Next, a third embodiment of the present invention will be described. FIG. 4 is a flowchart showing the operation of the in-vehicle device 1 for narrow area communication according to the third embodiment. FIG. 4A corresponds to the first embodiment described above, and FIG. b) corresponds to the second embodiment.
[0044]
In FIG. 6A, the control circuit 3 first reads the number of uses of each application (that is, the number of uses of each IC card 12 obtained by the processing shown in FIG. 2) in step S301, and this data Compare “AP ICCCNTx”. In the process of step S302, the usage frequency of each application is ranked based on this data. Thereby, in the said vehicle-mounted apparatus 1 for narrow area communication, an application with high use frequency and an application with low use frequency can be recognized.
[0045]
On the other hand, in FIG. 4B, in step S311, the number of uses of each application (that is, the number of communications for each application obtained by the processing shown in FIG. 3) is read, and this data “AP ICCCNTx” is compared. To do. In step S312, the usage frequency of each application is ranked based on this data. Thereby, in the said vehicle-mounted apparatus 1 for narrow area communication, an application with high use frequency and an application with low use frequency can be recognized.
[0046]
Next, a fourth embodiment of the present invention will be described. FIG. 5 is a flowchart showing the operation of the in-vehicle apparatus 1 for narrow area communication according to the fourth embodiment.
[0047]
In the control circuit 3, first, in step S401, it is determined whether or not the narrow-area communication in-vehicle apparatus 1 is turned on. If it is time to turn on the power, it is determined in step S402 whether the IC card 12 is inserted. If the IC card 12 is not inserted (not inserted), the most frequently used application obtained in the process shown in FIG. 4 is confirmed in the process of step S403.
[0048]
Thereafter, in step S404, the fact that the IC card 12 (the IC card corresponding to the most frequently used application) is not inserted into the IC card interface 6 is used using the display unit 10 or the audio output unit 11. The person in charge.
[0049]
Thus, in the fourth embodiment, when the power of the in-vehicle device 1 for narrow area communication is turned on, if the IC card 12 is not inserted, the IC card 12 with the highest frequency of use is not used. Since the insertion is notified, the user can recognize this immediately and can perform an operation of inserting the IC card 12.
[0050]
Next, a fifth embodiment of the present invention will be described. FIG. 6 is a flowchart showing the operation of the vehicle-mounted device 1 for narrow area communication according to the fifth embodiment.
[0051]
In the control circuit 3, first, in step S501, it is determined whether or not the power supply of the in-vehicle apparatus 1 for narrow area communication is being turned on. If it is time to turn on the power, it is determined in step S502 whether the IC card 12 is inserted. If the IC card 12 is not inserted (not inserted), the data of the ranking of the usage frequency obtained in the process shown in FIG. 4 is confirmed in the process of step S503.
[0052]
Thereafter, in step S504, the user is notified using the display unit 10 or the audio output unit 11 in the descending order of use frequency of applications used in the past.
[0053]
In this way, in the fifth embodiment, when the IC card 12 is not inserted when the in-vehicle device 1 for narrow area communication is turned on, the usage frequency of the application used in the past is used. Therefore, the user can recognize this immediately, and can perform an operation of inserting the IC card 12 corresponding to the desired application into the IC card interface 6.
[0054]
Next, a sixth embodiment of the present invention will be described. FIG. 7 is a flowchart showing the operation of the vehicle-mounted device 1 for narrow area communication according to the sixth embodiment.
[0055]
The control circuit 3 first determines whether or not the IC card 12 has been inserted into the IC card interface 6 in the process of step S601. If the insertion of the IC card 12 is detected in step S602, the type of application corresponding to the inserted IC card 12 is confirmed in step S603.
[0056]
Thereafter, in step S604, the usage frequency data obtained in the process shown in FIG. 4 is confirmed. In step S605, this application (the application corresponding to the inserted IC card 12) is the application with the highest usage frequency. It is determined whether or not.
[0057]
If it is not the most frequently used application, the display unit 10 or the audio output unit 11 is used to confirm that the application of the inserted IC card 12 is not the most frequently used in the process of step S606. , Notify the user.
[0058]
In this way, in the sixth embodiment, when the IC card 12 inserted into the IC card interface 6 is not the most frequently used, this is notified, so the IC card by the user Twelve mistakes can be prevented.
[0059]
Next, a seventh embodiment of the present invention will be described. FIG. 8 is a flowchart showing the operation of the in-vehicle apparatus 1 for narrow area communication according to the seventh embodiment.
[0060]
First, in step S701, the control circuit 3 determines whether or not the application title is being displayed. If it is determined that the title is being displayed, in the process of step S702, the data on the ranking of the frequency of use obtained by the process shown in FIG. 4 is confirmed.
[0061]
Thereafter, in step S703, the display unit 10 or the audio output unit 11 is used to notify the user in the descending order of use of applications used in the past.
[0062]
In this way, in the seventh embodiment, when the application title is displayed, the usage frequency data of the application used in the past is notified, so that the user can immediately recognize this. The desired application can be selected.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an in-vehicle device for narrow area communication according to each embodiment of the present invention.
FIG. 2 is a flowchart showing an operation of the in-vehicle device for narrow area communication according to the first embodiment of the present invention.
FIG. 3 is a flowchart showing an operation of the in-vehicle device for narrow area communication according to the second embodiment of the present invention.
FIG. 4 is a flowchart showing the operation of the in-vehicle device for narrow area communication according to the third embodiment of the present invention.
FIG. 5 is a flowchart showing an operation of the in-vehicle device for narrow area communication according to the fourth embodiment of the present invention.
FIG. 6 is a flowchart showing an operation of the in-vehicle device for narrow area communication according to the fifth embodiment of the present invention.
FIG. 7 is a flowchart showing an operation of the in-vehicle device for narrow area communication according to the sixth embodiment of the present invention.
FIG. 8 is a flowchart showing the operation of the in-vehicle device for narrow area communication according to the seventh embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 In-vehicle apparatus for narrow area communication 2 Roadside apparatus 3 Control circuit 4 Communication processing part 5 Power supply circuit 6 IC card interface (IC card reading means)
7 Card Switch 8 Cryptographic Processing Circuit 9 Operation Unit 10 Display Unit 11 Audio Output Unit 12 IC Card 21 CPU
21a Counter unit (counting means)
22 EEPROM (memory means)
23 RAM
24 ROM
31 Transmitter / Receiver 32 RF Circuit 33 Modem Circuit 34 Antenna 41 Navigation System 42 GPS Antenna 43 Display

Claims (5)

In an in-vehicle device for narrow area communication that is mounted on a vehicle, corresponds to a plurality of applications, and transmits and receives signals to and from a roadside device installed in the vicinity of the vehicle traveling path.
IC card reading means for reading data of each IC card prepared for each application that communicates with the roadside device;
Counting means for counting the number of times each IC card is inserted into the IC card reading means for each IC card ;
Storage means for storing a count value by the counting means;
If the IC card is not inserted in the IC card reading means at the time of power-on of the in-vehicle apparatus for narrow area communication, the IC card having the largest count value is not inserted in the IC card reading means. A notification means for notifying
An in-vehicle device for narrow area communication, comprising: In an in-vehicle device for narrow area communication that is mounted on a vehicle, corresponds to a plurality of applications, and transmits and receives signals to and from a roadside device installed in the vicinity of the vehicle traveling path.
IC card reading means for reading data of each IC card prepared for each application that communicates with the roadside device;
When the IC card is inserted into the IC card reading means and an application corresponding to the IC card is communicated with the roadside device, the communication frequency of the application is counted for each IC card. Counting means;
Storage means for storing a count value by the counting means;
If the IC card is not inserted in the IC card reading means at the time of power-on of the in-vehicle apparatus for narrow area communication, the IC card having the largest count value is not inserted in the IC card reading means. A notification means for notifying
An in-vehicle device for narrow area communication, comprising: If the IC card is not inserted in the IC card reading unit when the vehicle for narrow area communication is turned on, the notifying unit selects the IC card having the largest count value as the IC card reading unit. 3. A notification according to claim 1, wherein notifying that the IC card is not inserted, and subsequently notifying that an IC card having a large count value has not been inserted into the IC card reading means. In- vehicle device for narrow area communication. The notification means notifies the fact when the IC card inserted into the IC card reading means is not the IC card having the largest count value stored in the storage means. The in- vehicle device for narrow area communication according to any one of claims 1 to 3 . The notification means has the largest count value either when the on-board device for narrow area communication is turned on or when a title of an application corresponding to an IC card inserted in the IC card reading means is called. The in- vehicle device for narrow area communication according to any one of claims 1 to 4, wherein a title of an application corresponding to an IC card is displayed or output by voice .

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