JP2008009515A - Vehicle-mounted device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle-mounted device reliably configuring an external device to be configured in a versatile manner depending on the vehicle. <P>SOLUTION: When an engine of a vehicle is started, a vehicle-mounted ETC system establishes an external interface with a navigation device, which is an external device, and outputs the vehicle inspection certificate information to the navigation device. When the navigation device receives the vehicle inspection certificate information, it sets a sound system according to the type of the vehicle, gives various pieces of information according to the type of the vehicle, and gives the information on the inspection time according to the vehicle inspection certificate information. Thereby, the vehicle inspection certificate information can be automatically set to the navigation device, which used to be configured by a user. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle-mounted device that stores vehicle verification information required for authentication during communication with a road device.

In the ETC system, personal information, on-board equipment information, and tollgate information are exchanged by performing wireless communication between the on-road equipment installed at the ETC toll booth and the ETC on-board equipment attached to the vehicle. (See Patent Document 1). When this ETC system is used, it is necessary to set up predetermined vehicle verification information in advance in the ETC vehicle-mounted device. This setup work must be performed every time the vehicle is changed.
JP 2000-99784 A

  By the way, in recent years, accessories that are attached to vehicles such as car navigation and car audio have a mechanism that can be widely set according to the vehicle in consideration of commonality of components and replacement at the time of vehicle replacement. . For this reason, when accessories are attached to the vehicle, incorrect settings may be made or settings may be forgotten. In such cases, the function of turning corners cannot be provided to the user. Will occur.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an in-vehicle device capable of surely setting an external device capable of setting a setting according to a vehicle for general use. It is in.

  According to the invention of claim 1, since the vehicle-mounted device outputs the vehicle verification information stored in the storage means at a predetermined timing, the vehicle verification information is automatically set for the external device based on the vehicle verification information. Can be done automatically.

  According to the invention of claim 2, when the vehicle verification information is stored in the storage means, the vehicle verification information is output to the outside, so that the vehicle verification information is automatically transmitted to the external device when setting up the vehicle verification information. Can be set automatically.

  According to the invention of claim 3, when the vehicle power switch is turned on, the vehicle verification information stored in the storage means is output to the outside. Vehicle verification information can be set automatically.

  According to the invention of claim 4, since the vehicle verification information can be set in the external device in response to a request from the external device, the vehicle verification information can be set for the external device at an appropriate timing.

  According to the invention of claim 5, since the vehicle verification information can be set up in the storage means by transmitting the vehicle verification information from the specific road device, registration of the vehicle verification information is possible without using a setup card. Thus, the setup work can be simplified.

(First embodiment)
A first embodiment in which the present invention is applied to a vehicle navigation apparatus will be described below with reference to FIGS.
FIG. 1 is a block diagram showing the overall configuration of an ETC (Electronic Toll Collection System) vehicle-mounted device 1. As shown in FIG. 1, an ETC vehicle-mounted device 1 includes an antenna 2, a radio unit 3, an overall control unit 4, an IC card control unit 5, an IC card connector 6, an external device connection unit (corresponding to output means) 7, a storage Unit (corresponding to storage means) 8, display unit 9, speaker 10, input operation unit 11, and power supply unit 12. The antenna 2 is for performing wireless communication with the on-road equipment 13 installed in a dedicated gate (hereinafter, ETC gate) by, for example, DSRC (Dedicated Short Range Communication). The radio unit 3 performs signal processing on the received signal of the antenna 2 and outputs the signal to the overall control unit 4, or performs signal processing on the transmission data from the overall control unit 4 to convert it to a transmission signal, and connects the antenna 2 to the road unit 13. It is for transmitting via.

  The overall control unit 4 performs wireless communication with the roadside device 13 through the wireless unit 3, and transmits and receives information necessary for billing. The overall control unit 4 is a computer means including a well-known CPU, ROM, RAM, I / O and a bus line for connecting these components, and performs communication and information performed in the ETC vehicle-mounted device 1. An accounting process is performed by controlling a process such as acquisition, or by performing a communication process with the on-road unit 13 while the ACC switch of the ignition switch 14 is on. At this time, the billing information is written into the IC card 15 via the IC card control unit 5 and is also written into the storage unit 8 as necessary.

  The IC card control unit 5 reads and writes necessary information with the road unit 13 in a state where the IC card 15 necessary for using the ETC system is inserted into the IC card connector 6. In the storage unit 8, setup information is written at the time of setup, and necessary information such as setting information of the ETC on-vehicle device 1 and user setting information is written during normal operation. The IC card 15 includes a control unit 16 mainly including a CPU and a storage unit 17. Setup information stored at the time of setup in the ETC OBE 1 includes license plate information (vehicle registration number and vehicle number written on the vehicle inspection certificate), vehicle verification (vehicle inspection certificate) information (vehicle size, weight, etc.) ) Etc. are registered.

  The display unit 9 is configured by a known LCD (Liquid Crystal Display), LED (Light Emitting Diode), or the like, and is a display device that displays charging information, setting information, and the like. The speaker 10 notifies information by voice. The power supply unit 12 is supplied with power from a vehicle battery 18 as a power supply when the ACC switch of the ignition switch 14 is on.

  The roadside device 13 includes a toll booth antenna 19 and a control unit 20, and when a predetermined authentication procedure is completed based on information transmitted from the ETC onboard unit 1, the gate is opened to allow the vehicle to pass. . The roadside device 13 is connected to an ETC server in the ETC control center that manages the ETC.

The ETC vehicle-mounted device 1 having the above configuration is connected to a navigation device 22 via an in-vehicle LAN (Local Area Network) 21.
In the present embodiment, the navigation device 22 can automatically set various functions based on the vehicle verification information acquired from the ETC vehicle-mounted device 1 as described later. Functions that can be set include an acoustic system, route guidance, and automatic maintenance guidance.

Next, the operation of the above configuration will be described.
FIG. 4 shows an operation sequence of each device.
<When starting the engine>
When the user turns on the ignition switch 14 to start the engine of the vehicle, the ETC onboard device 1 and the navigation device 22 are turned on, so that they negotiate through the in-vehicle LAN 21 to establish an external interface. When the external interface is established, the ETC on-vehicle device 1 outputs the vehicle verification information stored in the storage unit 8 to the navigation device 22 through the in-vehicle LAN 21.

  FIG. 2 is a flowchart showing vehicle verification information acquisition processing when the ignition of the navigation device 22 is on. As shown in FIG. 2, when the navigation apparatus 22 acquires the vehicle verification information from the ETC vehicle-mounted device 1 (A1), the navigation apparatus 22 determines whether it matches the stored vehicle verification information (A2). If yes (A2: YES), the vehicle verification information is stored (A3).

When the navigation apparatus 22 registers the vehicle verification information from the ETC on-board device 1 as described above, thereafter, the navigation apparatus 22 executes a service based on the registered vehicle verification information as shown in FIG.
The following functions are set as this service.
(1) Setting of an acoustic system according to the shape of the vehicle. The acoustic system (for example, audio surround) of the navigation device 22 can set the vehicle type (large vehicle, medium vehicle, small vehicle, light vehicle, etc.). It has become. Conventionally, acoustic parameters suitable for the vehicle type can be set by setting the vehicle type for the navigation device by the user, but in this embodiment, based on the vehicle verification information input from the ETC vehicle-mounted device 1. The acoustic parameters are set automatically. Therefore, the user can enjoy the sound system automatically set based on the vehicle verification information without setting the vehicle verification information in the navigation device 22.

  (2) Various guides according to the shape of the vehicle: toll guide according to the vehicle (vehicle width, displacement, etc.), parking space restrictions according to the vehicle (vehicle width, vehicle height, etc.), vehicle (vehicle type, vehicle width) , Route guidance such as navigation according to the vehicle height. In the conventional case, such a setting is not possible, so depending on the vehicle type, different fee guidance is performed, parking spaces that can not be entered are guided, roads that can not pass are guided, but in this example, the vehicle type is Various guides are provided accordingly. Therefore, the user can smoothly drive the vehicle by using various guidance automatically set based on the vehicle verification information without setting the vehicle verification information in the navigation device 22.

  (3) Inspection time guidance based on vehicle verification information: Since the legal inspection time and vehicle inspection time are known from the vehicle verification information, the inspection time is displayed on the display unit of the navigation device 22. In the conventional one, the user can input a desired inspection time, but in this embodiment, it can be automatically set. Therefore, the user can recognize the next inspection time automatically set based on the vehicle verification information without inputting the inspection time to the navigation device 22.

<During setup or re-setup>
When the ETC vehicle-mounted device 1 on which the vehicle verification information has already been written is attached to a different vehicle, or when the vehicle verification information is changed by modifying the vehicle, the vehicle verification information registered in the ETC on-vehicle device 1 Need to be rewritten. For example, if the vehicle width, vehicle length, or vehicle height is changed by remodeling a vehicle that has already been registered in the ETC on-board device 1 into a camper, write the vehicle verification information in the new vehicle verification information. It is necessary to change. In this way, when changing the vehicle verification information to the new vehicle verification information, it is necessary to re-set up the ETC vehicle-mounted device 1, and a setup card is used. This setup card is created by writing registration information acquired from an information issuing center to an IC card by a setup store (a store where writing of setup information to the ETC on-board device 1 is permitted). This is used when setting up for the first time or when setting up again. Specifically, the setup information in the registration information received and decrypted from the information issuing center is written in the IC card, the setup card is issued, and the setup card thus issued is set in the ETC in-vehicle device 1. To do.

  When the setup card is set, the ETC in-vehicle device 1 performs card authentication, acquires setup information by executing setup communication with the setup card, and stores the setup information in the storage unit 8. Thereby, the setup of the vehicle verification information is completed.

  FIG. 3 is a flowchart showing the notification process of the vehicle verification information when the setup of the ETC on-vehicle device 1 is updated. As shown in FIG. 3, when the vehicle verification information is acquired by the setup process (B1), the ETC on-vehicle device 1 determines whether the setup process is successful (B2). When the setup is successful (B2: YES), the vehicle verification information is updated and stored (B3), and then the vehicle verification information is output to the navigation device 22 as an external device (B4).

  When the setup is completed as described above, the ETC on-vehicle device 1 outputs the vehicle verification information to the navigation device 22, so the navigation device 22 sets the new vehicle verification information as shown in FIG. Therefore, after that, various functions (acoustic system setting, various guidance, inspection time guidance) based on the vehicle verification information described above will be performed based on the new vehicle verification information. Various functions based on new vehicle verification information can be provided without setting verification information.

  The reason why the vehicle verification information is output to the navigation device 22 even when the ignition is turned on other than during the setup of the ETC on-vehicle device 1 is that the navigation device 22 may not be connected during the setup. This is because it is considered that the vehicle verification information cannot be output to the navigation device 22.

  According to such an embodiment, since the ETC vehicle-mounted device 1 outputs the vehicle verification information to the navigation device 22 at a predetermined timing, when the vehicle verification information of the ETC vehicle-mounted device 1 is updated, The vehicle verification information to be set in the navigation device 22 can also be automatically updated. Therefore, unlike the conventional example in which the user has to set the vehicle verification information in the navigation device 22, when the navigation device 22 is attached to the vehicle, an incorrect setting is made or the setting is forgotten. This can be reliably prevented, and the function of the navigation device 22 can be reliably provided to the user.

  Moreover, since the ETC vehicle-mounted device 1 outputs the vehicle verification information to the navigation device 22 not only at the time of setup but also when the ignition switch 14 is turned on, the navigation device 22 is not attached to the vehicle at the time of setup. Even if it exists, the function of the navigation apparatus 22 can be set reliably based on vehicle verification information.

  As shown in FIG. 5, the navigation device 22 requests vehicle verification information from the ETC vehicle-mounted device 1 when the external interface is established or when the setup completion is notified from the ETC vehicle-mounted device 1. The ETC in-vehicle device 1 may respond the vehicle verification information to the navigation device 22 in response to a request for the vehicle verification information. In this case, the vehicle verification information can be set at an appropriate timing requested by the navigation device 22.

(Second embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. The second embodiment is characterized in that the vehicle verification information to be recorded in the ETC vehicle-mounted device 1 is written by a road device.
That is, as described in the first embodiment, a setup card is generally used to write vehicle verification information in the ETC vehicle-mounted device 1, but such a setup operation is cumbersome and inefficient. Therefore, in the present embodiment, it is proposed to write the vehicle verification information from the road device to the ETC on-vehicle device 1.

  FIG. 6 shows a setup procedure by the roadside machine. In FIG. 6, the road machine is installed at a setup shop, and the vehicle verification information transmitted from the information issuing center is transmitted to the ETC vehicle-mounted device 1 located in the communication area of the road machine by narrow area communication. It is supposed to be.

  First, the road device requests the ETC onboard device 1 for authentication. In this authentication, a setup key is stored and information transmitted from the roadside device is decrypted. The communication between the road machine and the ETC on-board unit is the same as the relationship between the setup card and the ETC on-board unit 1 described in the first embodiment, and the ETC on-board unit 1 receives the vehicle verification information when the setup is completed. Output to the navigation device 22.

According to such an embodiment, the vehicle verification information can be written to the ETC on-vehicle device 1 at the time of setup by the roadside device, so that the setup work on the ETC on-vehicle device 1 can be efficiently performed in a short time. it can.
Similar to the operation shown in FIG. 5, the vehicle verification information may be reported in response to a request for the vehicle verification information from the navigation device 22.

The present invention is not limited to the above embodiment, and can be modified or expanded as follows.
When the electronic license plate storing the vehicle verification information is attached to the tag attached to the license plate, the vehicle verification information may be output from the electronic license plate to the navigation device. In this case, the electronic license plate corresponds to the vehicle-mounted device.
The external device is not limited to the navigation device 22 and may be applied to an audio device, an air conditioner, and the like.

The block diagram which shows the electrical constitution of the ETC onboard equipment in 1st Example of this invention. The flowchart which shows the vehicle verification information acquisition process at the time of ignition ON of a navigation apparatus The flowchart which shows the notification process of the vehicle verification information at the time of the setup update of an ETC onboard equipment Sequence diagram showing the operation of each device FIG. 4 equivalent diagram showing a modification FIG. 4 equivalent view showing a second embodiment of the present invention.

Explanation of symbols

  In the drawings, 1 is an on-board ETC device, 7 is an external device connection unit (output unit), 8 is a storage unit (storage unit), and 13 is a road device.

Claims (5)

A vehicle-mounted device that stores vehicle verification information required for authentication when communicating with a road device in a storage means,
An in-vehicle device comprising output means for outputting the vehicle verification information to an external device of a type that performs function setting according to the vehicle verification information at a predetermined timing.   The on-vehicle device according to claim 1, wherein the predetermined timing is when the vehicle verification information is set up.   2. The vehicle-mounted device according to claim 1, wherein the predetermined timing is when a vehicle power switch is turned on.   The in-vehicle device according to claim 1, wherein the predetermined timing is when there is a request from the external device. The road device transmits the vehicle verification information to the vehicle-mounted device,
5. The vehicle-mounted device according to claim 1, wherein the storage unit sets up the vehicle verification information received from the roadside device.

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