JP3901063B2 - Narrow-range communication vehicle-mounted device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to narrow-area communication between road vehicles and is suitable for use in DSRC and ETC.
[0002]
[Prior art]
Conventionally, road-to-vehicle communication systems such as ETC (Electronic Toll Collection system) and DSRC (Dedicated Short Range Communication) have been researched, developed, or put into practical use. DSRC is a narrow area communication system that performs wireless communication over a short distance of about several meters. This communication system is assumed to be used for applications such as driving support for vehicles in ITS (Intelligent Transport System). The ETC is a communication system for performing payment of a toll road travel fee by wireless communication.
[0003]
[Problems to be solved by the invention]
In these DSRC and ETC, there is a demand on the roadside machine side that wants to provide a service in which the contents change when the on-board equipment or user of the narrow area communication using this road-vehicle communication system changes. The roadside device side is a service provider's server or the like connected to the roadside device through a dedicated line or the like. In order to perform such a service that varies depending on the narrow-area communication vehicle-mounted device or the user, the roadside device side acquires the narrow-area communication vehicle-mounted device or user identification information to be serviced, and each narrow-area communication vehicle-mounted device Must identify the vessel or user.
[0004]
On the other hand, from the standpoint of the user of the narrow-band communication vehicle-mounted device, teaching the identification information of yourself or your own narrow-band communication vehicle-mounted device to an unspecified partner may lead to leakage of personal information. , Privacy may not be preferable.
[0005]
For example, when a DSRC narrow-area communication vehicle-mounted device starts communication with the roadside device automatically when entering the communication area, it is not intended when entering the roadside device communication area while driving in a car. There are cases where the narrow-area communication vehicle-mounted device transmits identification information to an undesired roadside device at the timing. As described above, if the identification information is automatically transmitted every time the communication area is entered, information indicating at which time the vehicle was located at which time is frequently recorded. If such information is comprehensively acquired by any method, personal information such as a behavior record of a vehicle occupant will be leaked.
[0006]
In view of the above points, the present invention provides a narrow-area communication vehicle-mounted device for narrow-band communication between roads and vehicles that automatically starts communication when entering a communication area. The purpose is to prevent transmission.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 for achieving the above object is used for narrow-area communication between road vehicles, and when entering a communication area for narrow-area communication, the narrow-area communication vehicle-mounted device automatically starts narrow-area communication. Because A memory for storing a communication partner list which is a list of unique identification information for distinguishing a communication partner device from other devices; Requests that the other party of this communication send its own identification information in automatically started communication Unique identification information that distinguishes the signal and the device with which it is communicating from other devices Can receive And there is no unique identification information received in the communication partner list stored in the memory. And a request notification means for notifying the occupant that there is a request for transmission of identification information, and Self A narrow-area communication vehicle-mounted device comprising: identification information manual transmission means for transmitting its own identification information to a communication partner based on receiving an input to transmit identification information.
[0008]
As a result, the request notifying means requests the communication partner to transmit its own identification information in the narrow-area communication vehicle-mounted device that automatically starts communication when entering the narrow-area communication area. Unique identification information that distinguishes the signal and the device with which it is communicating from other devices Based on receiving this Self-identification Notify occupants that there is a request to send information. The occupant who has received this notification can determine whether or not to transmit the identification information by confirming the current position of the vehicle and structures such as surrounding stores. This is possible because the communication area of the narrow area communication is so small that the occupant can make such a determination. When the occupant inputs that the identification information is transmitted, the identification information manual transmission means accepts the input and transmits the identification information to the other party of communication, so that the identification information is transmitted by the occupant's input. become. Therefore, the narrow-area communication vehicle-mounted device for narrow-band communication between road vehicles that automatically starts communication when entering the communication area transmits the identification information of the narrow-band communication vehicle-mounted device to the communication partner not intended by the occupant. Can be prevented.
[0010]
Also this As a result, a communication phase not in the communication partner list Hand equipment Only on the other hand, the narrow-area communication vehicle-mounted device can automatically transmit its own identification information without the input of the occupant, so that it becomes possible to transmit the identification information by further detailed classification. .
[0011]
Claims 2 The invention described in 1 is a narrow-area communication vehicle-mounted device that is used for narrow-area communication between road vehicles and that automatically starts narrow-area communication when entering a narrow-area communication area. A memory for storing a communication partner list that is a list of unique identification information for distinguishing the communication partner device in the narrow-band communication that starts automatically from other devices; Requests that the other party of this communication send its own identification information in automatically started communication Unique identification information that distinguishes the signal and the device with which it is communicating from other devices Can receive And there is no received unique identification information in the communication partner list stored in the memory. Based on the location information of the vehicle and information on the communication partner for each communication area of narrow area communication The Information on the communication partner in the current communication area Together with a request for transmission of the identification information Identification information manually for transmitting the identification information to the other party of communication based on receiving a specific signal transmission means for transmitting a specific signal to the user interface device for notifying the occupant and an input for transmitting the identification information by the occupant A narrow-range communication vehicle-mounted device comprising a transmission means.
[0012]
As a result, the request notifying means requests the communication partner to transmit its own identification information in the narrow-area communication vehicle-mounted device that automatically starts communication when entering the narrow-area communication area. Unique identification information that distinguishes the signal and the device with which it is communicating from other devices The user interface device is notified of a specific signal. The user interface device that has received this specific signal notifies the occupant of information related to the communication partner in the current communication area, together with a request for transmission of identification information. The occupant who has received this notification determines whether or not to transmit identification information by checking information related to the other party of communication through the user interface device in addition to the current position of the vehicle and the surrounding stores. be able to. When the occupant inputs that the identification information is transmitted, the identification information manual transmission means accepts the input and transmits the identification information to the other party of communication, so that the identification information is transmitted by the occupant's input. become. Therefore, the narrow-area communication vehicle-mounted device for narrow-band communication between road vehicles that automatically starts communication when entering the communication area transmits the identification information of the narrow-band communication vehicle-mounted device to the communication partner not intended by the occupant. Can be prevented.
[0013]
It should be noted that the identification information manual transmission means may accept the input of transmitting the identification information by the occupant either directly or indirectly.
[0015]
Also this As a result, a communication phase not in the communication partner list Hand equipment Only on the other hand, the narrow-area communication vehicle-mounted device can automatically transmit its own identification information without the input of the occupant, so that it becomes possible to transmit the identification information by further detailed classification. .
[0016]
Claims 3 The invention described in claim 1 Or 2 In the communication device that is automatically started, the signal that requests to transmit the identification information of the communication partner and the identification information of the communication partner are received from the communication partner, An identification information automatic transmission means is provided for transmitting the identification information of the communication partner to the communication partner based on the fact that there is identification information of the communication partner in the stored communication partner list.
[0017]
Thus, by storing identification information of communication partners that may transmit identification information in the communication partner list, the narrow area communication vehicle-mounted device does not depend on the input of the occupant for these communication partners. , You will be able to automatically send your identification information.
[0018]
Claims 4 The invention described in claim Any one of 1 to 3 The narrow-area communication vehicle-mounted device described in (1) is characterized by comprising means for changing the contents of the communication partner list based on the passenger's input.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
FIG. 1 shows the configuration of a narrow-area communication system between road vehicles by DSRC according to the first embodiment of the present invention. In the present embodiment, antennas 1 are scattered in the vicinity of roads, toll gates, stores, parking lots, etc. (hereinafter referred to as infrastructure), and a communication area having a radius of several meters is formed around this antenna. The DSRC controller 2 performs processing such as amplification, demodulation, A / D conversion and the like on the signal received by the antenna 1 according to the DSRC standard, and transmits the received data obtained thereby to the application processing device 3. Further, the DSRC controller 2 performs processing such as D / A conversion, modulation, and amplification on the transmission data received from the application processing device 3 in accordance with the DSRC standard, and outputs a radio signal obtained thereby from the antenna 41. .
[0020]
The application processing device 3 is a server that is installed in a store, a parking lot, a toll booth, a roadside, etc., and performs processing for providing various services to a DSRC communication partner. The application processing device 3 stores a unique ID in a memory (not shown) as identification information for distinguishing itself from other application processing devices, and transmits this ID to the DSRC communication partner. Yes. Hereinafter, the ID of the application processing apparatus 3 is referred to as an infrastructure ID. As the infrastructure ID, for example, an alphanumeric string of ten or more digits can be used. In addition, the application processing apparatus 3 transmits a command (signal) requesting to transmit an ID as identification information to a communication partner during DSRC communication.
[0021]
The DSRC vehicle-mounted device 4 is a communication device (narrow-range communication vehicle-mounted device) mounted on a vehicle (not shown) for performing DSRC communication. The DSRC in-vehicle device 4 is operated by receiving power from a battery power source when the vehicle ignition is turned on. FIG. 2 is a block diagram showing the configuration of the DSRC on-vehicle device 4. The DSRC in-vehicle device 4 includes an antenna 41, a radio unit 42, a baseband processing unit 43, a control unit 44, a RAM 45, a button 46, a display 47, a speaker 48, and an EPROM 49.
[0022]
The radio unit 42 performs processing such as amplification, modulation, A / D conversion, and the like on the radio signal received from the antenna 41 according to the DSRC standard, and transmits the obtained I and Q data to the baseband processing unit 43. To do. The radio unit 42 performs processing such as D / A conversion, modulation, and amplification on the I and Q data for transmission received from the baseband processing unit 43 in accordance with the DSRC standard, and the radio signal obtained thereby Is output from the antenna 1.
[0023]
When the baseband processing unit 43 has a DSP and receives I and Q data from the radio unit 42, the baseband processing unit 43 converts these data into ASK, π / 4 shift QPSK, BPSK-OFDM, QPSK-OFDM, 16QAM-OFDM, 64QAM- Digitally demodulates the data string according to a demodulation method such as OFDM. Then, the baseband processing unit 43 outputs the demodulated data to the control unit 44.
[0024]
In addition, when the baseband processing unit 43 receives data for wireless transmission from the control unit 44, the baseband processing unit 43 converts the transmission data into I, Q, according to a modulation scheme such as BPSK-OFDM, QPSK-OFDM, 16QAM-OFDM, and 64QAM-OFDM. Data is orthogonally encoded (digital modulation). The I and Q data are output to the radio unit 42.
[0025]
The control unit 44 operates by reading and executing a program recorded in the EPROM 49 which is a rewritable nonvolatile memory, and reads information from the RAM 45 which is a volatile memory according to the necessity of the operation. Write. In the EPROM 49, in addition to a program for operating the CPU, an ID (hereinafter referred to as an onboard unit ID) as identification information of the DSRC onboard unit 4, a list of infrastructure IDs, and the like are stored. This list of infrastructure IDs (hereinafter simply referred to as a list) is a list of one or a plurality of communication partners that may automatically transmit the vehicle-mounted device ID as will be described later. As the vehicle-mounted device ID, for example, an alphanumeric string of about ten or more digits can be used. Further, the control unit 44 exchanges control information and information for communication with the control unit 44, the button 46, the display 47, and the speaker 48 as necessary for the operation thereof.
[0026]
The button 46 has two buttons (both not shown), a menu button and a selection button. The menu button is a button for switching a mode such as a list erasure described later, and the selection button is a button for inputting various selections and determinations.
[0027]
When the on-board DSRC device 4 configured as described above performs DSRC communication with the infrastructure, the signal received by the antenna 41 is amplified, demodulated, and D / A converted by the radio unit 42 at the time of reception, and the baseband processing unit 43 Digitally demodulated and processed by the control unit 44 in accordance with a program. At the time of transmission, transmission data generated by the program in the control unit 44 is digitally modulated in the baseband processing unit 43, A / D converted, modulated, and amplified in the radio unit 42, and then output from the antenna 1 as a radio signal. Is done.
[0028]
Hereinafter, the operation | movement in communication with the DSRC onboard equipment 4 and the application processing apparatus 3 is demonstrated using the sequence diagram of FIG. 3 and FIG.
[0029]
FIG. 3 is a sequence diagram showing the operation of the control unit 44 when the infrastructure ID of the infrastructure of the communication area into which the vehicle carrying the DSRC onboard device 4 enters does not exist in the list of the EPROM 49.
[0030]
First, when a vehicle equipped with the DSRC on-vehicle device 4 enters a communication area formed by the antenna 1, the control unit 44 of the DSRC on-vehicle device 4 performs processing for establishing a radio link with the application processing device 3 according to the DSRC standard. This is automatically performed (step 105). In the process of establishing the wireless link, the DSRC on-vehicle device 4 and the application processing device 3 exchange communications belonging to the data link layer of the OSI reference model. The establishment of this link is realized by assigning an identifier for both to distinguish each other from the other, but since the identifier assigned to the DSRC onboard unit 4 is a temporary random ID, the DSRC Like the vehicle-mounted device ID that is unique to the vehicle-mounted device 4, it cannot be used to specify the DSRC vehicle-mounted device 4 later.
[0031]
When the link is established, the application processing device 3 transmits a signal requesting to transmit the vehicle-mounted device ID to the DSRC vehicle-mounted device 4 together with the stored infrastructure ID, and the control unit 44 receives the signal. (Step 110). Note that this onboard equipment ID request signal is repeatedly transmitted from the DSRC onboard equipment 4 until the onboard equipment ID is transmitted.
[0032]
Then, the control unit 44 determines whether the received infrastructure ID is in the list stored in the EPROM 49 or not. Here, it is determined that there is no (step 115), and based on the determination that there is not, a signal indicating that OBE ID transmission is rejected is transmitted to the application processing device 3 via the baseband processing unit 43 or the like (step). 120) In addition, the passenger is notified that there is a request for transmission of the vehicle-mounted device ID (step 125). This notification is realized by the control unit 44 controlling the speaker 48 to give a voice notification such as “Can I send the ID?”. Alternatively, it can be realized by controlling the display 47 to cause the display 47 to display characters having the same contents.
[0033]
Then, even if the control unit 44 receives a vehicle-mounted device ID transmission request from the same infrastructure ID thereafter (step 130), it returns a vehicle-mounted device ID rejection signal unless there is an input to transmit from the passenger described later (step 130). 135).
[0034]
If the occupant who has received the above notification inputs the onboard unit ID by pressing the selection button while the vehicle is in the communication area, the control unit 44 detects the button pressing (step 140). ), A flag indicating that the button press has been detected is set in the RAM 45 and turned on. This flag is turned off when the vehicle leaves the communication area.
[0035]
At this time, if it is detected that the selection button is pressed for a long time, the infrastructure ID is added to the list in the EPROM 49 (step 145). The long press is a press that lasts for a certain time (for example, 3 seconds) or longer. As a result, even when the user subsequently leaves the communication area and then enters the communication area again, the vehicle-mounted device ID can be automatically transmitted to the infrastructure without being input by a passenger.
[0036]
After that, when the onboard unit ID transmission request is received again from the application processing device 3 (step 150), the control unit 44 sets the DSRC onboard unit stored in the EPROM 49 based on the fact that the selection button pressing flag is set to ON. 4 is transmitted to the application processing apparatus 3 (step 155).
[0037]
The application processing apparatus 3 that has received this onboard equipment ID starts communication for service processing based on this onboard equipment ID. As the service processing, there are collation between the received on-board device ID and a pre-registered on-board device ID list, and permission to enter the parking lot. At this time, the control unit 44 performs a process for receiving the service process, that is, a voice notification for admission based on the reception of the admission permission notification (step 160).
[0038]
FIG. 4 is a sequence diagram showing the operation of the control unit 44 when the infrastructure ID of the infrastructure of the communication area in which the vehicle on which the DSRC on-board device 4 is installed is present in the list of the EPROM 49. In FIG. 4, the same step numbers are assigned to the processes of the control unit 44 similar to those in FIG. 3, and detailed description thereof is omitted.
[0039]
Upon entering the communication area, establishing a link, and receiving a request for transmitting the vehicle-mounted device ID and the infrastructure ID from the application processing device 3, the control unit 44 does not have the received infrastructure ID in the list stored in the EPROM 49. Determine whether. Here, it is determined that it is present (step 215), and based on the determination that it is present, the on-board unit of the DSRC on-board unit 4 is made to the application processing device 3 without causing the occupant to determine whether or not the on-board unit ID can be transmitted. The ID is transmitted (step 220). And the speaker 48 is controlled and the sound for notifying that the onboard equipment ID was transmitted is generated. This sound may be a buzzer sound “beep” or a voice “ID transmitted”. Then, the application processing apparatus 3 and the control unit 44 enter service processing and processing for receiving it (step 160).
[0040]
Note that by pressing the menu button several times, the mode is switched to the list erasing mode, and when the selection button is pressed in this mode, all infrastructure IDs in the list are erased.
[0041]
The control unit 44 of the DSRC on-vehicle device 4 that automatically starts communication when entering the DSRC communication area by the operation of the DSRC on-vehicle device 4 as described above transmits its own on-vehicle device ID from the communication partner. There is a request for transmission of the vehicle-mounted device ID based on the reception of the requested signal and the absence of the infrastructure ID of this communication partner, that is, the application processing device 3 in the list of infrastructure IDs stored in the EPROM 49 To the crew. The occupant who has received this notification can determine whether or not to transmit the vehicle-mounted device ID by confirming the current position of the vehicle and structures such as surrounding stores. This is possible because the communication area of the narrow area communication is so small that the occupant can make such a determination. When the occupant performs an input indicating that the OBE ID is transmitted by pressing the button, the control unit 44 receives this input and transmits its OBE ID to the communication partner. Will be sent. Therefore, it is possible to prevent the vehicle-mounted device for narrow-area communication between road vehicles that automatically starts communication upon entering the communication area from transmitting the vehicle-mounted device ID of the vehicle-mounted device to a communication partner not intended by the passenger. .
[0042]
In addition, by storing the infrastructure IDs of communication partners to whom the vehicle-mounted device IDs may be transmitted in the above list, the DSRC vehicle-mounted device 4 is automatically connected to these communication partners without being input by the occupant. Thus, the user's own vehicle-mounted device ID can be transmitted.
[0043]
Moreover, since infrastructure ID can be registered into a list | wrist by long-pressing a button, it becomes possible to change the list | wrist which may transmit onboard equipment ID by a passenger | crew automatically. In addition, since one button can be used for both the input of transmitting the OBE ID and the registration to the list of the infrastructure ID, the number of buttons in the DSRC OBE that is usually small and difficult to provide with many buttons. Can be saved.
[0044]
(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described. The difference between the present embodiment and the first embodiment is that the reception of the signal of the vehicle-mounted device ID transmission request to the vehicle occupant and the direct input of the occupant transmitting the vehicle-mounted device ID are directly received by the DSRC. It is to be a car navigation device, not an on-vehicle device.
[0045]
Hereinafter, only the parts of the present embodiment different from the first embodiment will be described in detail. FIG. 5 shows a configuration of the DSRC vehicle-mounted device 4 ′ according to the present embodiment. In FIG. 5, the same components as those in the DSRC on-vehicle device 4 shown in FIG. 2 are denoted by the same reference numerals, and descriptions thereof are omitted.
[0046]
The car navigation device 52 has a display and a memory for storing map information, obtains current position information and travel history information of the host vehicle, and indicates which position the host vehicle is traveling on or travels. It is a device that displays what was on the display, searches for the optimum route from this map information or traffic condition information to the destination, and displays the result on the display. In the present embodiment, the car navigation device 52 has DSRC communication area information and information on infrastructure for each communication area as map information. The information related to infrastructure is, for example, correspondence between an infrastructure ID assigned to the infrastructure and names such as store names and parking lot names of these infrastructures. Information about this infrastructure can be downloaded using a communication means such as DSRC or a mobile phone.
[0047]
In addition, when the car navigation device 52 in the present embodiment receives a specific signal from the control unit 44 via the external interface 51, a request for transmission of the vehicle-mounted device ID is made based on the information regarding the infrastructure for each communication area of the DSRC. It is a user interface device that notifies a passenger of information related to a communication partner in the current communication area. In this embodiment, the specific signal is a signal including an infrastructure ID of a communication partner and information indicating that communication with the infrastructure having the infrastructure ID has started. In addition, the car navigation device 52 directly receives an input indicating that the vehicle-mounted device ID is transmitted by the occupant and transmits a signal indicating that the input has been received to the control unit 44.
[0048]
The external interface 51 mediates transmission / reception of signals between the control unit 44 and devices external to the DSRC in-vehicle device 4 ′. The control unit 44 exchanges control information and information with the car navigation device 52 via the external interface 51.
[0049]
One of the parts where the operation of the DSRC OBE 4 'in the present embodiment is different from the DSRC OBE 4 in the first embodiment is that a request is made to transmit the OBE ID from the other party of the communication in the automatically started communication. On the basis of the fact that the communication partner list stored in the EPROM 49 does not have the communication partner's infrastructure ID, the above-mentioned specific signal is transmitted to the car navigation device 52, and also by the passenger Based on indirectly receiving an input to the car navigation device 52 to transmit the vehicle-mounted device ID via the car navigation device 52, the vehicle-mounted device ID is transmitted to the other party of the current communication.
[0050]
Hereinafter, the operation of the DSRC on-board unit 4 ′, the application processing unit 3, and the car navigation device 52 when the DSRC on-board unit 4 ′ and the application processing unit 3 communicate with each other will be described with reference to the sequence diagrams of FIGS. I will explain. 6 and FIG. 9 that are the same as the processes in FIG. 3 and FIG. 4 are assigned the same step numbers, and detailed descriptions thereof are omitted.
[0051]
FIG. 6 is a sequence diagram illustrating the operation of the control unit 44 and the like when the infrastructure ID of the infrastructure in the communication area in which the vehicle on which the DSRC on-vehicle device 4 ′ is mounted does not exist in the list of the EPROM 49.
[0052]
When this vehicle enters the communication area of the application processing device 3, the control unit 44 automatically establishes a link with the application processing device 3 (step 105), and the vehicle-mounted device ID including the infrastructure ID from the application processing device 3. A transmission request is received (step 110), it is determined that the received infrastructure ID is not present in the EPROM 49 list (step 115), and a notification of OBE ID transmission rejection is sent to the application processing device 3 (step 120). .
[0053]
Then, the control unit 44 transmits a signal including the above-described specific signal, that is, the received infrastructure ID and information indicating that communication with the infrastructure having the infrastructure ID has started via the external interface 51. (Step 625).
[0054]
Receiving this specific signal, the car navigation device 52 searches for information corresponding to the infrastructure ID received from the control unit 44 from the information regarding the infrastructure in the map information (step 310). And the store name etc. corresponding to the said infrastructure ID found as a result of the search are displayed on the display, so that the passenger is notified. The display for this notification is, for example, a character display “Please press the ID transmission button if you want to transmit the ID to XXX.” XXX is an infrastructure name such as a store name. Further, the car navigation device 52 may have a speaker, and thereby output the same sound.
[0055]
While the vehicle is in the communication area, when the passenger who has received the notification performs an input to transmit the vehicle-mounted device ID through a preset user interface such as a button provided in the car navigation device 52 The car navigation device 52 detects the input and transmits a signal indicating that the vehicle-mounted device ID can be transmitted to the control unit 44.
[0056]
The control unit 44 receives this signal (step 640), and based on this reception, sets a flag indicating that the vehicle-mounted device ID may be transmitted to the infrastructure in the RAM 45 and turns it on. This flag is turned off when the vehicle leaves the communication area. As a result, the DSRC vehicle-mounted device 4 ′ can transmit the vehicle-mounted device ID to the infrastructure.
[0057]
In addition, the service processing of the application processing device 3 in this embodiment includes, for example, menu transmission of food and drink, reception of orders, and time, received in-vehicle device ID, and storage of order contents. As a process of receiving this service (step 160), the control unit 44 transmits a signal to the car navigation device 52 for displaying a menu on the display of the car navigation device 52, for example, There are reception of an order by selection, transmission of the order to the application processing apparatus 3, and the like.
[0058]
After that, the car navigation device 52 displays the position of the infrastructure on the map as shown in the upper part of FIG. 7 and then (for example, several seconds later) and further registers “XXX for automatic transmission as shown in the lower part of FIG. The message “Do you want to?” Prompts the passenger to select “Yes” or “No”. At this time, if an occupant is provided in the car navigation device 52 and inputs an instruction to register the infrastructure ID in the list, that is, “yes”, by a preset user interface, the car navigation device 52 inputs the input. And a signal to register the infrastructure ID in the list is transmitted to the control unit 44. When the display also serves as an input device such as a touch panel, this input can be performed by touching the display portion of “Yes” on the display.
[0059]
The control unit 44 receives this signal (step 670), and registers the infrastructure ID in the list based on this reception (step 680). As a result, even when the user subsequently leaves the communication area and then enters the communication area again, the vehicle-mounted device ID can be automatically transmitted to the infrastructure without being input by a passenger.
[0060]
In addition, as shown in FIG. 8, the list is displayed on the display of the car navigation device 52, and the passenger selects the infrastructure ID of the infrastructure selected by the car navigation device 52, as shown in FIG. You may perform by notifying the control part 44.
[0061]
FIG. 9 is a sequence diagram showing the operation of the control unit 44 when the infrastructure ID of the infrastructure of the communication area in which the vehicle on which the DSRC on-board device 4 ′ is installed is present in the list of the EPROM 49. 9, the same step numbers are assigned to the processes of the control unit 44 similar to those in FIG. 6, and the detailed description thereof is omitted.
[0062]
Upon entering the communication area, establishing a link, and receiving a request for transmitting the vehicle-mounted device ID and the infrastructure ID from the application processing device 3, the control unit 44 does not have the received infrastructure ID in the list stored in the EPROM 49. Determine whether. Here, it is determined that it is present (step 215), and based on the determination that it is present, the on-board unit of the DSRC on-board unit 4 is made to the application processing device 3 without causing the occupant to determine whether or not the on-board unit ID can be transmitted. The ID is transmitted (step 220).
[0063]
And the control part 44 transmits the signal which shows that the vehicle equipment ID was transmitted to the infrastructure which received the infrastructure ID received from the application processing apparatus 3, and this infrastructure ID with respect to the car navigation apparatus 52 to the car navigation apparatus 52. (Step 730).
[0064]
The car navigation device 52 that has received the infrastructure ID and signal searches the information related to the infrastructure in the map information for the one corresponding to the infrastructure ID received from the control unit 44 (step 410). And the store name etc. corresponding to the said infrastructure ID found as a result of the search are displayed on the display to notify the passenger that the vehicle-mounted device ID has been transmitted. The display for this notification is, for example, a character display “ID has been sent to XXX.” XXX is an infrastructure name such as a store name. Further, the car navigation device 52 may have a speaker, and thereby output the same sound.
[0065]
Note that when the occupant inputs to delete the list from the preset interface of the car navigation device 52, the car navigation device 52 transmits a signal requesting to transmit the list to the control unit 44. The control unit 44 that has received this signal reads the list from the EPROM 49 and transmits it to the car navigation device 52. The car navigation device 52 that has received the list displays a list of the contents of the list on the display. And the input which selects the infrastructure of the object erase | eliminated from a passenger | crew is received, and the signal which requests | requires deleting the information of the said infrastructure from a list | wrist is transmitted to the DSRC onboard equipment 4 based on the received selection. Based on this signal, the DSRC on-board unit 4 ′ deletes the information on the infrastructure from the list in the EPROM 49.
[0066]
The control unit 44 of the DSRC on-board unit 4 ′ that automatically starts communication upon entering the DSRC communication area by the operation of the DSRC on-board unit 4 ′ as described above transmits its own on-board unit ID from this communication partner. And receiving the specific signal described above based on the fact that the infrastructure ID of the communication partner, that is, the application processing apparatus 3 is not included in the list of infrastructure IDs stored in the EPROM 49. 52 is notified. The car navigation device 52 that has received this specific signal notifies the occupant of the infrastructure ID of the communication partner in the current communication area, together with the request for transmission of the vehicle-mounted device ID. Whether the occupant who has received this notification transmits the vehicle-mounted device ID by confirming the display of the information related to the communication partner by the car navigation device 52 in addition to the current position of the vehicle and the surrounding stores and the like. Can be determined. When the occupant inputs to the car navigation device 52 to transmit the vehicle-mounted device ID, the control unit 44 receives this input via the external interface 51 and transmits its vehicle-mounted device ID to the communication partner. The vehicle-mounted device ID is transmitted by the input of the occupant. Therefore, it is possible to prevent the vehicle-mounted device for narrow-area communication between road vehicles that automatically starts communication upon entering the communication area from transmitting the vehicle-mounted device ID of the vehicle-mounted device to a communication partner not intended by the passenger. .
[0067]
In addition, by storing the infrastructure IDs of communication partners to whom the vehicle-mounted device IDs may be transmitted in the above list, the DSRC vehicle-mounted device 4 is automatically connected to these communication partners without being input by the occupant. Thus, the user's own vehicle-mounted device ID can be transmitted.
[0068]
Further, the car navigation device 52 specifies the infrastructure at the current position from the position information of the own vehicle and the information about the infrastructure for each communication area of the DSRC, and when there is a request for transmission of the vehicle-mounted device ID, the communication in the current communication area is performed. Information about the opponent may be notified to the occupant.
[0069]
In each of the above-described embodiments, the processing of each step shown in FIGS. 3, 4, 6, and 9 of the control unit 44 is configured as means for realizing the function indicated by each processing.
[0070]
As a specific example, in the automatically started communication of FIG. 3, the notification process in step 125 receives the signal requesting to transmit the identification information of the user from the other party of the communication. Request request means for notifying an occupant that there is a request for transmission is configured.
[0071]
Further, based on the fact that the transmission processing of step 155 in FIG. 3 receives the input to transmit the identification information by the occupant, the identification information manual transmission means for transmitting the identification information to the communication partner is configured.
[0072]
Further, in the communication automatically started in step 625 of FIG. 6, a specific signal is transmitted to the user interface device based on receiving a signal requesting transmission of the identification information from the communication partner. The specific signal transmission means for transmitting.
[0073]
Also, in the communication automatically started in step 220 in FIGS. 4 and 9, a signal requesting transmission of identification information from the communication partner and the identification information of the communication partner are received. In addition, based on the fact that there is identification information of the communication partner in the communication partner list stored in the memory, an identification information automatic transmission means for transmitting the identification information to the communication partner is configured.
[0074]
Further, the processing of step 145 of FIG. 3 and step 680 of FIG. 6 and the processing of deleting the contents of the list constitute means for changing the contents of the communication partner list based on the occupant's input.
[0075]
In the first and second embodiments, the communication partner list is a list of communication partners whose own identification information may be automatically transmitted without inquiring the occupant. 4 'does not have this list, and it may always be determined whether or not the identification information can be transmitted by the input of the occupant. Moreover, DSRC onboard equipment 4, 4 'may have the list | wrist which does not transmit onboard equipment ID, without inquiring a passenger | crew.
[0076]
Further, in the second embodiment, an input to transmit occupant identification information is made to the car navigation device 52, and the DSRC onboard unit 4 'accepts an input to this effect via the car navigation device 52. However, the DSRC in-vehicle device 4 ′ may directly accept this input by pressing a button or the like as in the first embodiment.
[0077]
In the second embodiment, it is the car navigation device 52 that notifies the vehicle occupant that the vehicle-mounted device ID transmission request signal has been received and directly receives an input indicating that the vehicle-mounted device ID is transmitted by the vehicle occupant. There is no need, and when a specific signal is received, there is a request for transmission of the identification information based on the position information of the own vehicle and information on the communication partner of the narrow area communication, and the communication partner of the current communication area It may be a device having only a function of notifying the passenger of information regarding
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a narrow-area communication system between road vehicles by DSRC according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a configuration of a DSRC on-vehicle device 4;
FIG. 3 is a sequence diagram showing an operation of communication with the application processing apparatus 3 of the control unit 44.
FIG. 4 is a sequence diagram showing an operation of communication with the application processing apparatus 3 of the control unit 44.
FIG. 5 is a diagram showing a configuration of a DSRC vehicle-mounted device 4 ′ according to the second embodiment.
6 is a sequence diagram showing an operation of communication between the application processing device 3 and the car navigation device 52 of the control unit 44. FIG.
7 is a diagram showing display contents on a display of the car navigation device 52. FIG.
FIG. 8 is a diagram showing display contents on a display of the car navigation device 52;
9 is a sequence diagram illustrating an operation of communication between the application processing device 3 and the car navigation device 52 of the control unit 44. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Antenna, 2 ... DSRC controller, 3 ... Application processing apparatus,
4, 4 '... DSRC on-board unit, 41 ... antenna, 42 ... radio part,
43 ... baseband processing unit, 44 ... control unit, 45 ... RAM, 46 ... button,
47 ... Display, 48 ... Speaker, 49 ... EPROM,
51 ... External interface, 52 ... Car navigation device.

Claims (4)

It is used for narrow area communication between road vehicles, and when entering the communication area of the narrow area communication, it is a narrow area communication vehicle-mounted device that automatically starts the narrow area communication ,
A memory for storing a communication partner list which is a list of unique identification information for distinguishing a communication partner device from other devices;
In the communication that started the automatic, the receiving child unique identification information for distinguishing a device request signal and the communication partner to transmit its own identification information from the partner of the communication with other devices And a request notification means for notifying a passenger that there is a request for transmission of the identification information based on the absence of the unique identification information received in the communication partner list stored in the memory ;
A narrow area, comprising: identification information manual transmission means for transmitting the identification information to the communication partner based on receiving an input to transmit the identification information by the occupant. Communication vehicle equipment. It is used for narrow area communication between road vehicles, and when entering the communication area of the narrow area communication, it is a narrow area communication vehicle-mounted device that automatically starts the narrow area communication ,
A memory for storing a communication partner list, which is a list of unique identification information for distinguishing the communication partner device from the other devices in the narrow-band communication automatically started;
In the communication that started the automatic, the receiving child unique identification information for distinguishing a device request signal and the communication partner to transmit its own identification information from the partner of the communication with other devices And when receiving a specific signal based on the absence of the specific identification information received in the communication partner list stored in the memory, the position information of the vehicle and the communication partner of the narrow area communication A specific signal transmitting means for transmitting the specific signal to a user interface device for notifying an occupant that there is a request for transmission of the identification information and information on a communication partner in the current communication area based on information on
Narrow-area communication vehicle-mounted, comprising: identification information manual transmission means for transmitting the identification information to the communication partner based on receiving an input to transmit the identification information by the occupant vessel. In the automatically started communication, receiving a signal requesting transmission of identification information from the communication partner and identification information of the communication partner, and the communication partner list stored in the memory based on that there is a partner identification information of the communication in of claim 1 or 2, characterized in that an identification information automatic transmission means for transmitting the identification information of the self to the other of the communication Narrow-range communication vehicle-mounted device. The narrow-area communication vehicle-mounted device according to any one of claims 1 to 3, further comprising means for changing contents of the communication partner list based on an input of the occupant.

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