JP2005173855A - On-vehicle machine for automatic charge payment system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle machine, in which abnormality is detected during vehicle driving and it is transmitted to a driver, even if abnormalities in an IC card occurs during driving of a vehicle. <P>SOLUTION: An IC card diagnostic circuit 110, loaded on the on-vehicle machine 10 diagnoses the abnormality of the IC card at a constant time interval, based on the signal of a timer circuit 130 mounted on the on-vehicle machine 10. Thus, the on-vehicle machine 10 diagnoses abnormality of the IC card during vehicle driving. Information on abnormality is transmitted to the driver by a liquid crystal display unit 150, an LED display unit 160 and a speaker 170. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention uses a vehicle-mounted device having a wireless communication function and an IC card inserted into the vehicle-mounted device, and performs wireless communication between the vehicle-mounted device and an antenna (hereinafter referred to as a roadside antenna) installed at a toll gate. In particular, the present invention relates to an automatic fee payment system that automatically pays a fee on a toll road such as an expressway, and more particularly to an on-vehicle device for an automatic fee payment system provided with means for transmitting an abnormality such as a failure of the IC card to a driver.

  Conventional non-stop automatic toll payment system that pays tolls without stopping the vehicle for the purpose of eliminating congestion at toll road tolls such as expressways, reducing air pollution by exhaust gas, and reducing noise (Hereinafter, ETC: Electronic Toll Collection System) has been put into practical use. An ETC user installs an on-board device for ETC in a vehicle, inserts an IC card for settlement of ETC charges into the on-vehicle device, and the on-board device is installed at a toll gate on a toll road. By wireless communication, the fee can be automatically settled without stopping the vehicle.

  When a vehicle equipped with an on-vehicle device travels on an ETC lane provided at a toll gate on a toll road, the roadside antenna installed on the ETC lane communicates with the on-vehicle device wirelessly to perform billing processing. Upon successful completion, the open / close gate provided at the toll gate opens, and the ETC vehicle can pass through the toll gate non-stop. The ETC lane is prepared for a situation in which the opening / closing gate is not opened when a vehicle without an on-vehicle device passes through the lane for the ETC lane or when an error occurs during billing processing. Vehicles that pass through are required to slow down sufficiently to be able to stop safely.

  If the opening / closing gate does not open due to an error during billing processing, the vehicle immediately before the opening / closing gate immediately notices that the opening / closing gate does not open, but the subsequent vehicle traveling on the same ETC lane is delayed to notice and charged Troubles may occur at road entrances or toll gates. Also, if the vehicle is suddenly unable to pass with the opening / closing gate closed, it is difficult for the driver to change lanes to other ETC lanes because the lane of the passing vehicle is often changed around the toll gate.

In order to prevent the trouble in advance, an invention has been devised that avoids trouble at a toll booth when an in-vehicle device or an IC card breaks down. Patent Document 1 is a proposal for avoiding troubles caused by failure of the vehicle-mounted device. When the power supply voltage of the vehicle-mounted device decreases during the reading / writing operation to the IC card during the billing process, the driver may take an appropriate process. An onboard device that can be used is disclosed. Patent Document 2 is a proposal for avoiding troubles caused by abnormalities in the IC card. When the IC card is inserted into the vehicle-mounted device, the access completion information of the previous transaction is recorded in the IC card, and the access is completed to the IC card. When the information is not recorded, the ETC system is disclosed that discharges the IC card and informs the driver that the IC card cannot be used in advance, thereby avoiding trouble at the toll gate.
JP 2000-298744 A Japanese Patent Laid-Open No. 11-184981

  As described above, in Patent Document 1 and Patent Document 2, a failure is detected at the time of billing processing or when an IC card is inserted into the vehicle-mounted device. Otherwise, there is a problem that it cannot be detected. In particular, since the IC card used in the ETC system is a contact type IC card, when the IC card is attached to the vehicle-mounted device, the reader / writer connector built in the vehicle-mounted device and the contact terminal of the IC chip module embedded in the IC card When the vehicle is always in contact with the vehicle and travels on a rugged road such as a mountain road, vibration applied to the vehicle during travel is transmitted to the IC card through the connector, and the IC card may break down while the vehicle is traveling. . Also, when the driver gets off, the IC card is generally ejected from the vehicle-mounted device, and if the IC card ejected from the vehicle-mounted device is subjected to an extremely strong impact, the IC chip module becomes prone to failure. The possibility that the IC card breaks down while the vehicle is running increases.

  As described above, the failure of an IC card during vehicle travel can actually occur sufficiently, and an on-board vehicle that can transmit an abnormality of the IC card generated during vehicle travel to the driver before using the ETC. A vessel is desired.

  The present invention has been made to solve such a problem, and if an IC card breaks down while driving a vehicle, whether it is a toll road or a general road, the driver before reaching the toll road entrance or toll gate. An object of the present invention is to provide an in-vehicle device capable of avoiding trouble at a toll road entrance or a toll gate by transmitting an abnormality of an IC card to a toll.

  In order to solve the above-mentioned problem, in the vehicle-mounted device for an automatic fee payment system according to the invention described in claim 1, data read / write means for reading / writing data from / to an IC card mounted on the vehicle-mounted device, and vehicle running IC card abnormality diagnosing means for accessing the IC card using the data read / write means and diagnosing abnormality of the IC card based on data transmitted from the IC card, and information to the driver based on the abnormality diagnosis result An on-vehicle device for an automatic fee payment system, characterized by comprising information transmission means for transmitting. By providing IC card abnormality diagnosis means for diagnosing IC card abnormality while the vehicle is running, even if an IC card abnormality occurs while the vehicle is running, the IC card abnormality is detected before reaching the toll road entrance or toll gate. By detecting this and transmitting the abnormality of the IC card to the driver, troubles at the toll road entrance and toll gate can be avoided.

  In the in-vehicle device for an automatic fee payment system according to the invention described in claim 2, in the in-vehicle device for the automatic fee payment system according to claim 1, an IC card attachment detection means for detecting that an IC card is attached; IC card ejection means for ejecting the IC card, and the IC card abnormality diagnosis means, in addition to the diagnosis during running of the vehicle, based on signals from the IC card attachment detection means and the IC card ejection means An on-vehicle device for an automatic fee payment system characterized by diagnosing an abnormality. By diagnosing the abnormality of the IC card when the IC card is mounted on the vehicle-mounted device or when the IC card is ejected from the vehicle-mounted device, the abnormality of the IC card can be detected before and after the vehicle travels in addition to during the vehicle travel. Can be diagnosed.

  The on-board device for an automatic fee payment system according to the invention described in claim 3 is the on-vehicle device for an automatic fee payment system according to claim 1 and 2, further comprising a time measuring means for measuring time, and the IC card The abnormality diagnosing means is an in-vehicle device for an automatic fee payment system that diagnoses an abnormality of an IC card at regular time intervals based on information from the time measuring means. By using the time measuring means, an abnormality of the IC card can be diagnosed at regular time intervals while the vehicle is traveling.

  In an on-vehicle device for an automatic fee payment system according to a fourth aspect of the invention, in the on-vehicle device for an automatic fee payment system according to claim 1 and claim 2, vehicle travel distance measuring means for measuring a vehicle travel distance is provided. The IC card abnormality diagnosing means is an in-vehicle device for an automatic fee payment system, which diagnoses an abnormality of an IC card for every certain mileage based on information from the vehicle mileage measuring means. By using the vehicle travel distance measuring means, the IC card abnormality diagnosis means can diagnose an abnormality of the IC card according to the travel distance of the vehicle.

  In an on-vehicle device for an automatic fee payment system according to a fifth aspect of the invention, in the on-vehicle device for an automatic fee payment system according to any one of claims 1 to 4, the information transmission means is a display. This is an in-vehicle device for an automatic fee payment system. By using the information transmission means as a display, for example, even when the noise in the vehicle is large, the abnormality diagnosis result of the IC card can be transmitted to the driver. Here, the display is a device that displays an output from the computer, and means a liquid crystal display that displays characters according to the output of the computer, or an issuing diode (hereinafter referred to as an LED) that is turned on by the output of the computer.

  In the on-board device for an automatic fee payment system according to the invention described in claim 6, in the on-vehicle device for an automatic fee payment system according to any one of claims 1 to 4, the information transmission means transmits information by sound. An on-vehicle device for an automatic fee payment system, characterized in that: By using the information transmission means as means for transmitting information by sound, it is possible to transmit the abnormality information of the IC card to the driver even when the driver is difficult to recognize the display at the time of backlight or the like. Here, the means for transmitting information by sound means a device for transmitting a signal from a computer such as a speaker by sound.

  The on-board device for an automatic fee payment system according to the invention described in claim 7 is the on-vehicle device for an automatic fee payment system according to any one of claims 1 to 6, wherein the information transmission means is a main body of the on-vehicle device. An on-vehicle device for an automatic fee payment system characterized by being separated. Separating the main body of the vehicle-mounted device and the information transmission means expands the degree of freedom of installation conditions of the information transmission means, and installs the information transmission means in a place where the driver can easily recognize, so that the driver can The card abnormality information can be conveyed reliably.

  As described above, by using the on-board device for an automatic fee payment system of the present invention, an abnormality of an IC card generated during traveling can be transmitted to a driver before arriving at a toll road entrance or a toll gate. By taking appropriate measures before the driver reaches the toll road entrance or toll gate, the driver can avoid trouble at the toll road entrance or toll gate.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First Embodiment]
FIG. 1 is a block diagram of an ETC on-vehicle device to which the first embodiment of the present invention is applied, FIG. 2 is an external view of the ETC on-vehicle device, and FIG. 3 is an IC card mounted on the ETC on-vehicle device. FIG. 4, FIG. 4 and FIG. 5 are operation flowcharts of the ETC on-vehicle device, respectively.

  1 and 2, an IC card 30 is mounted on the vehicle-mounted device 10 to which the present invention is applied, and an IC card diagnosis circuit 110 is used as an IC card abnormality diagnosis means for diagnosing an abnormality of the IC card 30, and the IC card diagnosis circuit 110. The CPU 120 serves as means for sending a message to be displayed on the information transmission means based on the diagnosis result sent from the IC card diagnosis circuit 110, and the timer circuit serves as time measurement means for measuring time. 130 is a reader / writer 140 as a means for reading / writing data from / to the inserted IC card 30, and a liquid crystal display 150 and an LED display as information transmission means for notifying the driver of the message by light based on a command from the CPU 120. 160, voice message to the driver based on the command from CPU120 A speaker 170 as information transmission means, a wireless communication circuit 180 as means for processing wireless communication data, an antenna 181 as means for wirelessly communicating with a roadside antenna, and a power source 190 as power supply means for operating the vehicle-mounted device 10 are provided. Yes.

  The IC card diagnosis circuit 110 is a circuit for diagnosing an abnormality of the IC card 30 attached to the reader / writer 140. The IC card diagnosis circuit 110 performs data communication with the IC card 30 via the reader / writer 140 in accordance with an instruction from the CPU 120, diagnoses an abnormality of the IC card 30 based on data returned from the IC card 30, and sends the diagnosis result to the CPU 120. Send back. The IC card diagnosis circuit 110 is connected to an IC card diagnosis selection means 111 and a diagnosis selection state display means 112. The IC card diagnosis selection means 111 is means for the user to select the state of IC card diagnosis circuit operation. The state has two states, an ON state and an OFF state. When the ON state is selected, the IC card is diagnosed while the vehicle is traveling, and when the OFF state is selected, the IC while the vehicle is traveling Do not perform card diagnostics. The diagnosis selection state display means 112 is a display means for transmitting the ON / OFF state of the IC card diagnosis selection means 111 to the driver. When the IC card diagnosis selection means 111 is in the ON state, the diagnosis selection state display means 112 It is a mechanism that lights up.

  The CPU 120 is a central processing unit that controls each device provided in the vehicle-mounted device 10. At the time of billing processing, the CPU 120 accesses the IC card 30 via the reader / writer 140, reads and writes data recorded on the IC card 30, and controls the wireless communication circuit 180 to wirelessly connect to a roadside antenna (not shown). Performs data communication and charges. At the time of IC card diagnosis, the CPU 120 issues an IC card diagnosis command to the IC card diagnosis circuit 110 and obtains a diagnosis result from the IC card diagnosis circuit 110. If the obtained diagnosis result is abnormal, a message related to the abnormality of the IC card 30 and a coping method is transmitted to the driver using the liquid crystal display 150, the LED display 160, and the speaker 170.

  The timer circuit 130 is a circuit that measures time. When a time measurement command is received from the CPU 120, time measurement is started, and when a certain time has elapsed from the start of time measurement, a timer interrupt signal is transmitted to the CPU 120. Each time the CPU 120 receives the timer interrupt signal, it issues an IC card diagnosis command to the IC card diagnosis circuit 110, so that the CPU 120 can diagnose an abnormality of the IC card at regular time intervals. In the present embodiment, the fixed time interval is 1 hour.

  The reader / writer 140 is a device that reads / writes data from / to the IC card 30, and includes an IC card mounting state display unit 141, an IC card mounting state detection unit 142, and an IC card ejection unit 143. The IC card attachment state detection unit 142 is a unit that detects that the IC card 30 inserted from the IC card insertion port 144 is normally attached to the reader / writer 140. The IC card mounting state display means 141 is a display that displays the mounting state of the IC card. When the IC card attachment state detection unit 142 detects that the IC card 30 is normally attached to the reader / writer 140, the IC card attachment state display unit 141 is turned on. The IC card ejecting means 143 includes a switch, and ejects the IC card 30 from the vehicle-mounted device 10 when the switch is pressed.

  The liquid crystal display 150 is a display that transmits a message about an abnormality of the IC card and a coping method to the driver in accordance with a command from the CPU 120, and is usually a display that transmits a message such as a toll. For example, if an IC card abnormality occurs, the message “IC card is abnormal. ETC cannot be used at present” is displayed as a message to convey the abnormality. Please do not use "" repeatedly.

  The LED display 160 is an indicator that indicates an abnormality of the IC card, similar to the liquid crystal display 150, and lights up red when the IC card is abnormal according to an instruction from the CPU 120, and lights up blue when normal.

  Similar to the liquid crystal display 150 and the LED display 160, the speaker 170 is a device that transmits a message about an abnormality of the IC card and a coping method to the driver in response to an instruction from the CPU 120. In normal times, the toll is transmitted by voice. It is a device to do. For example, if an abnormality occurs in the IC card 30, the message “IC card is abnormal. ETC cannot be used at present” is transmitted by voice as a message to convey the abnormality. Do not use toll roads or ETC gates on toll gates. "

  The wireless communication circuit 180 is a circuit that performs wireless communication data processing. When data to be transmitted from the CPU 120 to a roadside antenna (not shown) is received, data obtained by encoding the transmission data is transmitted to the roadside antenna via the antenna 181 by radio waves. The radio wave transmitted from the roadside antenna is received by the antenna 181, decoded by the wireless communication circuit 180, and then transmitted to the CPU 120.

  The power source 190 is a device that supplies power to each device provided in the vehicle-mounted device 10, and is connected with a power state display unit 191. When power is supplied from the power supply 190 to each device, the power supply status display means 191 is turned on.

  The IC card 30 attached to the vehicle-mounted device 10 will be described. FIG. 3 is an explanatory diagram of the IC card 30. The IC card 30 to be mounted on the vehicle-mounted device 10 is a card in which a module 310 containing an IC chip is mounted on a plus chip card having the same size as a credit card. The memory inside the IC chip is provided with an ETC application dedicated file (hereinafter referred to as a DF) 320 and an IC card diagnostic test DF 330. Also, in the memory inside the IC chip, an ETC program 321 which is a program used at the time of billing processing and an ETC data file 322 as data used at the time of billing processing are associated with the ETC application DF 320 and an IC card diagnostic test DF 330. The IC card diagnosis program 331 and the IC card diagnosis data file 332 used in IC card diagnosis are recorded in association with each other. In each data file, a checksum indicating the validity of the data is recorded together with the data. The checksum is a 1-byte value obtained by calculating an exclusive OR of all data recorded in each data file. The validity of the data can be confirmed by a dedicated command included in the ETC program 321.

  Next, the operation flow of the vehicle-mounted device 10 shown in FIGS. 1 and 2 will be described with reference to FIGS. 4 to 5 respectively.

  When power is supplied from the power supply 190, the power supply status display means 191 is turned on, and power is supplied to each device. When power is supplied to the CPU 120, the CPU 120 confirms that each device included in the vehicle-mounted device 10 operates normally (S100). When each device is operating normally, the CPU 120 confirms the mounting status of the IC card 30 using the IC card mounting status detection unit 142. When the IC card 30 is inserted from the IC card insertion slot 144 and is normally inserted, the IC card attachment state display means 142 is lit and the process proceeds to the next step. If the IC card 30 is not normally attached, the process waits until the IC card 30 is normally attached (S101).

  When it is confirmed that the IC card 30 is normally installed, the CPU 120 issues a command to the IC card diagnosis circuit 110 to execute diagnosis when the IC card is inserted. The IC card diagnosis circuit 110 executes a diagnosis when the IC card is inserted in accordance with a command from the CPU 120 (S200).

  Here, referring to FIG. 5, the diagnostic flow when the IC card is inserted will be described, and the diagnostic contents of the IC card will be described in detail. IC card diagnosis includes an ATR test (S201), an ETC application test (S203, S205, S207), and an IC card writing test (S209).

In the diagnosis when the IC card is inserted (S200), the ATR test is first executed. (S201)
The ATR test (S201) is a test for confirming that the IC card can be normally activated. The IC card diagnosis circuit 110 instructs the reader / writer 140 to activate the IC card, the reader / writer 140 activates the IC card 30 according to the procedure defined in the ISO 7816 standard, and the reader / writer 140 receives data returned from the IC card 30. , ATR (ATR: Answer to Reset) is received. The IC card diagnosis circuit 110 determines that the ATR test is normal if the ATR received by the reader / writer 140 conforms to the ETC specified value recorded in the IC card diagnosis circuit 110, and the ATR determines that the ATR is the specified value. If the value does not match or if ATR cannot be received normally, the diagnosis result is ATR abnormality.

  If the diagnosis result of the ATR test is an ATR abnormality, the IC card diagnosis circuit 110 returns data corresponding to the ATR abnormality to the CPU 120 (S220), and the diagnosis process at the time of inserting the IC card is ended (S240). If the ATR test is completed normally, the process proceeds to the next step (S202).

  The ETC application test includes an ETC application DF confirmation test (S203) for confirming that the inserted IC card 30 is an ETC IC card, and a data validity confirmation for confirming that data used in the ETC is not damaged. A test (S205) and a previous transaction status confirmation test (S207) for confirming that the previous transaction has ended normally are executed.

  In the DF confirmation test for ETC application (S203), the above-mentioned SELECT command is transmitted to the IC card 30 via the reader / writer 140, and the ETC is inserted into the IC card 30 inserted from the response data of the IC card 30 in response to the SELECT command. Confirm that the application DF 320 is recorded. When the ETC application DF 320 is not recorded on the IC card 30, the diagnosis result is an ETC application DF absence abnormality, and when the ETC application DF 320 is recorded on the IC card 30, the diagnosis result is normal.

  If the diagnosis result is an ETC application DF absence abnormality, the IC card diagnosis circuit 110 returns data corresponding to the ETC application DF absence abnormality to the CPU (S221), and ends the diagnosis process when the IC card is inserted (S240). ). If the ETC application DF exists in the IC card 30, the process proceeds to the next step (S204).

    In the data validity check test (S205), after selecting the IC card diagnosis DF by the above-described SELECT command, a command for checking the data validity is transmitted to the IC card 30 via the reader / writer 140. The IC card 30 calculates a checksum from the data recorded in the ETC data file 322, confirms that it is the same value as the checksum recorded together with the data in the ETC data file 322, and reads the confirmed result into the reader. It returns to the IC card diagnosis circuit 110 via the writer 140. If the correctness of the ETC data file 322 is abnormal, that is, the calculated checksum and the recorded checksum do not match, the diagnosis result is an ETC data file corruption error. The diagnosis result is normal.

  When the diagnosis result indicates that the ETC data file is damaged abnormally, the IC card 110 circuit returns data corresponding to the ETC data file damage to the CPU 120 (S222), and the diagnosis process at the time of inserting the IC card is ended (S240). If the diagnosis result is normal, the process proceeds to the next step (S206).

  The previous transaction status confirmation test (S207) is a test for checking the end status of the previous transaction. As a means for confirming the previous transaction completion status, the method of Patent Document 1 may be used, or another method may be used. If the previous transaction has not ended normally, the diagnosis result is the previous transaction error, and if the previous transaction has ended normally, the diagnosis result is normal.

  If the previous transaction is abnormally terminated, the IC card diagnosis circuit 110 returns data corresponding to the previous transaction abnormality to the CPU 120 (S223), and ends the diagnostic process when the IC card is inserted (S240). If the diagnosis result of the ETC application test is normal, the process proceeds to the next step (S208).

    In the data write test (S209), the IC card diagnosis circuit 110 selects the IC card diagnosis test DF 330 using the SELECT command described above, and the IC card diagnosis program 331 stores predetermined data in the IC card diagnosis data file 332. Write. After writing, the data in the IC card diagnosis data file 332 is read to confirm that the data has been normally written. When data writing cannot be performed correctly, the diagnosis result is regarded as abnormal data writing, and when data writing is performed correctly, the diagnosis result is regarded as normal.

  If the diagnosis result of the data writing test (S209) indicates that the data writing is abnormal, the IC card diagnostic circuit 110 returns data corresponding to the data writing abnormality to the CPU 120 (S224), and ends the diagnostic processing at the time of inserting the IC card ( S240). If the diagnosis result is normal, the IC card diagnosis circuit 110 returns data corresponding to the normal end of the diagnosis result when the IC card is inserted to the CPU 120 (S230), and ends the diagnosis process when the IC card is inserted (S240).

  From here, referring to FIG. 4, the description of the flow after the diagnosis (S200) when the IC card is inserted is resumed.

  When the CPU 120 receives from the IC card diagnosis circuit 110 data indicating that the IC card abnormality is the result of the diagnosis when the IC card is inserted, the liquid crystal display 150 and the LED display 160 and the speaker 170 (S120), and the IC card is discharged (S112). For example, when the CPU 120 receives a message corresponding to an ATR error, the message “There is an error in the IC card. ETC cannot be used. Do not drive on the ETC lane.” Communicate to the hand. Also, if the ETC application DF is absent, use the information transmission method described above and the message “The inserted IC card is not an ETC card. ETC cannot be used with this card. Please insert the correct ETC card.” To the driver. If the diagnosis result is normal, the process proceeds to the next step (S102).

  When the CPU 120 receives data from the IC card diagnosis circuit 110 whose diagnosis result is normal when the IC card is inserted, the CPU 120 is set to execute the IC card diagnosis while the IC card diagnosis selection means 112 is in an ON state, that is, during traveling. Is confirmed (S103). When the IC card diagnosis selection means 112 is selected to be in the ON state, the CPU 120 issues a time measurement start command to the timer circuit 130 (S104). When the OFF state is selected, the running IC card diagnosis is not executed, but when the IC card diagnosis selecting means 112 is changed from the OFF state to the ON state by the driver's operation, the CPU 120 changes to the ON state. When this is done, the process proceeds to (S104).

  The timer circuit 130 inputs a timer interruption signal to the CPU 120 when measuring one hour from the time measurement is started (S105). When receiving an interrupt signal from the timer circuit 130, the CPU 120 issues a running IC card diagnosis execution command to the IC card diagnosis circuit 110 (S300). The IC card diagnosis circuit 110 executes only the above-described ATR test as a running IC card diagnosis. In the diagnosis when inserting the IC card (S200), it has been confirmed that the inserted IC card is normal as an ETC IC card. Therefore, the IC card diagnosis during running (S300) performs the above ETC application test. Do not execute. If data is frequently written to the IC card while the vehicle is traveling, vibrations while the vehicle is traveling may cause the IC card contact terminal to be separated from the reader / writer connector, which may increase the possibility of damage to the IC card. The IC card diagnosis inside does not execute the data write test.

  The IC card diagnosis circuit 110 executes a running IC card diagnosis, that is, an ATR test, and then returns a diagnosis result to the CPU 120. If the diagnosis result is normal, the CPU 120 starts the timer circuit 130 again (S106). If the diagnosis result is abnormal, the CPU 120 uses the liquid crystal display 150, the LED display 160, and the speaker 170 to send a message corresponding to the IC card abnormality. After the transmission to the driver (130), the IC card is ejected (S112). When the IC card diagnosis result during running is normal, the timer circuit 130 starts again as described above, and the running IC card diagnosis is executed again after one hour has elapsed. Therefore, the running IC card diagnosis (S300) is repeatedly executed until the diagnosis result of the IC card becomes abnormal, when power is not supplied from the power supply 190, or until the IC card is ejected.

  Next, the IC card diagnosis (S400) when the IC card is discharged will be described. When the switch of the IC card ejecting means 143 is pushed, such as when the driver leaves the vehicle, an IC card ejecting interrupt signal is input from the IC card ejecting means 143 to the CPU 120 (S110), and the IC card 30 is ejected from the vehicle-mounted device 10. Before being executed, the CPU 120 instructs the IC card diagnosis circuit 110 to execute diagnosis (S400) when the IC card is ejected.

  The diagnosis at the time of IC card ejection (S400) is the same as the diagnosis at the time of IC card insertion (S200), that is, the ATR test (S201), the ETC application test (S203, S205, S207), and the data write test (S209). Run each one. If there is an abnormality in the IC card 30 in the diagnosis at the time of IC card ejection (S400), the CPU 120 sends a message corresponding to the abnormality of the IC card to the driver using the liquid crystal display 150, the LED display 160, and the speaker 170. After the transmission, the IC card is discharged (S112). If normal, the CPU 120 discharges the IC card without transmitting a message to the driver (S112).

  In this way, by diagnosing IC card abnormalities in each situation before, during, and after traveling, if an abnormality occurs in the IC card, the driver can quickly deal with it. Troubles can be avoided. For example, if the abnormality of the IC card is transmitted to the driver before and during traveling, the driver will not travel on the ETC lane, and if the abnormality of the IC card is transmitted to the driver after traveling, the driver You can also request a card reissue.

FIG. 6 is a diagram in which a vehicle-mounted device in which the information transmission means, that is, the liquid crystal display 150, the LED display 160, and the speaker 170 are separated from the vehicle-mounted device body is installed in the vehicle. As shown in FIG. 8, the vehicle-mounted device main body 810 and the information transmission means 820 are separated and installed in the vehicle. By installing the information transmission means 820 in the upper right part of the steering wheel, there is an effect that the driver can easily recognize a message for transmitting an abnormality of the IC card without narrowing the driver's field of view.
[Second Embodiment]

  A second embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 7 is a block diagram of an on-vehicle device for an automatic fee payment system to which the second embodiment of the present invention is applied. In FIG. 7, the same devices as those in FIG.

  In FIG. 7, the IC card 30 is mounted on the vehicle-mounted device 20 to which the present invention is applied, and the IC card diagnosis circuit 110 is included as an IC card abnormality diagnosis means for diagnosing the abnormality of the IC card 30. The CPU 120 is used as a means for instructing a message to be displayed on the information transmission means based on the diagnosis result transmitted from the IC card diagnosis circuit 110, and the travel distance measurement as a travel distance measurement means for measuring the travel distance. The circuit 230 is used as a means for reading / writing data from / to the inserted IC card 30, and the liquid crystal display 150 and LED display are used as information transmission means for notifying the driver of the message by light based on a command from the CPU 120. The driver 160 is notified of the message by voice based on the command from the CPU 120. A speaker 170 as information transmitting means, a wireless communication circuit 180 as means for processing wireless communication data, an antenna 181 as means for wirelessly communicating with a roadside antenna, and a power source 190 as power supply means for operating the vehicle-mounted device 20. ing.

  As can be seen by comparing FIG. 1 and FIG. 7, the difference between FIG. 1 and FIG. 7 is only that the timer circuit 130 of FIG. 1 is changed to a travel distance measuring circuit 230 in FIG. The travel distance measurement circuit 230 is electrically connected to a travel distance meter (not shown) provided in the vehicle, and measures the distance traveled by the vehicle from a signal obtained from the travel distance meter. When the travel distance measurement circuit 230 receives a command for measuring the travel distance from the CPU 220, the travel distance measurement circuit 230 clears the travel distance held by the travel distance measurement circuit 230 and then starts measuring the travel distance. The travel distance measurement circuit transmits a travel distance interrupt signal to the CPU 220 when the measured travel distance reaches a set value, for example, 25 km. When a travel distance interrupt signal is input from the travel distance calculation circuit, the CPU 220 uses the IC card diagnosis circuit 210 to diagnose an abnormality of the IC card during travel.

  FIG. 8 is an operation flowchart of the vehicle-mounted device 40 to which the second embodiment of the present invention is applied. 8, the same operations as those in FIG. 4 are denoted by the same reference numerals as those in FIG. As can be seen by comparing FIG. 4 and FIG. 8, the operation using the timer circuit 130 in FIG. 4, that is, the operation using S104, S105, and S106 using the travel distance measuring circuit 230 in FIG. That is, S804, S805, and S806 are replaced.

  Differences from FIG. 4 in FIG. 8, that is, S804, S805, and S806 will be described. After the diagnosis when the IC card is inserted (S200), if the diagnosis result is normal, the travel distance measurement is started (S804). When the travel distance reaches a predetermined distance (S805), the IC card diagnosis during travel (S300) is executed. If the IC card diagnosis result during travel (S300) is normal, measurement of the travel distance is started again (S806), and when the vehicle travels again for 25 km, the IC card diagnosis during travel (S300) is executed again. Accordingly, the running IC card diagnosis (S300) is repeatedly executed until the diagnosis result becomes abnormal, when the power is not supplied from the power source 190, or until the IC card is discharged.

Block diagram of the first embodiment Schematic diagram of the vehicle-mounted device to which the first embodiment is applied IC card illustration Operation flow diagram of the first embodiment Diagnosis flow chart when inserting IC card Installation drawing in which on-vehicle equipment and information transmission means are separated Block diagram of the second embodiment Operation flow diagram of the second embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Onboard equipment 110 IC card diagnostic circuit 111 IC card diagnostic selection means 112 Diagnosis selection means display 120 CPU
130 timer circuit 230 travel distance measurement circuit 140 reader / writer 141 IC card mounting state display unit 142 IC card mounting state detection unit 143 IC card ejection unit 144 IC card insertion slot 150 liquid crystal display 160 LED display 170 speaker 180 wireless communication circuit 181 Antenna 190 Power supply 191 Power supply status indicator 30 IC card 310 IC module

Claims (7)

  In an on-vehicle device for an automatic toll payment system that pays a toll on a toll road, etc., using data read / write means for reading / writing data to / from an IC card mounted on the on-vehicle device, and using the data read / write means during vehicle travel IC card abnormality diagnosis means for accessing the IC card and diagnosing the abnormality of the IC card based on data transmitted from the IC card, and information transmission means for transmitting information to the driver based on the abnormality diagnosis result An on-vehicle device for an automatic fee payment system characterized by the above.   2. The on-board device for an automatic fee payment system according to claim 1, comprising: an IC card attachment detecting means for detecting that an IC card is attached; and an IC card ejecting means for ejecting the IC card; The means for diagnosing an abnormality of the IC card based on signals from the IC card attachment detection means and the IC card ejection means in addition to the diagnosis during traveling of the vehicle.   The on-board device for an automatic fee payment system according to claim 1 and 2, further comprising a time measuring means for measuring time, wherein the IC card abnormality diagnosing means is based on information from the time measuring means. An in-vehicle device for an automatic fee payment system, characterized by diagnosing abnormalities at regular time intervals.   3. The on-board device for an automatic fee payment system according to claim 1 and 2, further comprising vehicle mileage measuring means for measuring a mileage of the vehicle, wherein the IC card abnormality measuring means is information from the vehicle mileage detecting means. Based on the above, an on-board device for an automatic fee payment system, characterized in that an abnormality of an IC card is diagnosed at every predetermined travel distance.   5. The on-board device for an automatic fee payment system according to claim 1, wherein the information transmission means is a display.   5. The on-board device for an automatic fee payment system according to claim 1, wherein the information transmission unit is a unit for transmitting information by sound. 6. The on-board device for an automatic fee payment system according to any one of claims 1 to 6, wherein the information transmission means is separated from a main body of the on-vehicle device.

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