JP2004094527A - Dedicated short-range communication onboard device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an inter-road vehicle dedicated short-range communication onboard device which automatically starts communication when entering a communication area from transmitting the identification information of the onboard device to the other party of communication unintended by a passenger. <P>SOLUTION: The control part of a DSRC onboard device which automatically starts communication when entering a DSRC communication area informs a passenger that the transmission of its own onboard device ID is requested based on the reception of a signal to request the transmission of its own onboard device ID from the other party of communication and the absence of the infrastructure ID of the other party of communication in the stored list of the infrastructure ID. When the passenger inputs his or her intention to transmit the onboard device ID, the control part detects the input, and transmits its own onboard device ID to the other party of communication. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to short-range communication between roads and vehicles, and is suitable for use in DSRC and ETC.
[0002]
[Prior art]
BACKGROUND ART 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 short-range communication system that performs wireless communication over a short distance of about several meters. This communication system is assumed to be used for purposes such as driving support of a vehicle in an ITS (Intelligent Transport System). The ETC is a communication system for paying a toll road travel fee by wireless communication.
[0003]
[Problems to be solved by the invention]
In these DSRCs and ETCs, there is a demand from roadside machines to provide a service in which the content changes when the on-board device or the user of the short-range communication using the road-vehicle communication system changes. The roadside machine side means a server of a service provider connected to the roadside machine via a dedicated line or the like. In order to perform such a service that changes according to the on-board short-range communication device or the user, the roadside device acquires the identification information of the on-site short-range communication device or user to be serviced, and obtains the respective short-range communication vehicle-mounted devices. Vessel or user must be identified.
[0004]
On the other hand, from the standpoint of the user of the onboard short range communication device, teaching the identification information of the user and his / her own onboard short range communication device to an unspecified person may lead to leakage of personal information. , May be undesirable in terms of privacy.
[0005]
For example, if the DSRC in-vehicle short-range communication device automatically starts communication with the roadside device when entering the communication area, while driving in a car, when entering the communication area of the roadside device, unintended At a certain timing, the on-board short-range communication device may transmit the identification information to the undesired road device. As described above, if the identification information is automatically transmitted each time the vehicle enters the communication area, information indicating at what time and where the vehicle is located is frequently recorded. If such information is comprehensively acquired in some way, personal information such as a record of the behavior of the occupant of the vehicle will be leaked.
[0006]
In view of the above, the present invention provides an on-board narrow-area communication device for road-vehicle short-range communication 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 a road and a vehicle, and automatically starts narrow-area communication when entering a communication area of narrow-area communication. And in the automatically started communication, notifies the occupant that there is a request for transmission of identification information based on receiving a signal requesting transmission of own identification information from the other party of this communication. A short-range communication comprising: a request notifying unit; and an identification information manual transmission unit that transmits its own identification information to a communication partner based on receiving an input by the occupant to transmit identification information. It is a vehicle-mounted device.
[0008]
Thereby, the request notification means in the on-board communication device that automatically starts communication when entering the communication area of the short-range communication receives a signal requesting transmission of its own identification information from the other party of this communication. Is notified to the occupant based on the request. The occupant who has received the notification can determine whether or not to transmit the identification information by confirming the current position of the vehicle and the structures such as stores around the vehicle. This is made possible by the fact that 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 to transmit the identification information, the identification information manual transmission means receives the input and transmits the identification information to the communication partner, so that the identification information is transmitted by the input of the occupant. become. Therefore, the narrow-area communication vehicle-mounted device for road-vehicle short-range communication, which automatically starts communication when entering the communication area, transmits the identification information of the narrow-area communication vehicle-mounted device to the communication partner not intended by the occupant. Can be prevented.
[0009]
According to a second aspect of the present invention, in the short-range communication vehicle-mounted device according to the first aspect, a communication partner list which is a list of identification information of communication partners in the short-range communication automatically started is stored. A request notification means for receiving a signal requesting transmission of its own identification information from the communication partner and identification information of the communication partner in the automatically started communication, and storing the information in the memory Based on the fact that there is no identification information of this communication partner in the communication partner list, the occupant is notified that there is a request for transmission of identification information.
[0010]
As a result, the on-board short-range communication device can automatically transmit its own identification information only to the communication partner not in the communication partner list without inputting by the occupant. Information can be transmitted.
[0011]
Further, the invention according to claim 3 is used in a short-range communication between a road and a vehicle, and when the vehicle enters a communication area of the narrow-range communication, the narrow-range communication vehicle-mounted device automatically starts the narrow-range communication. When a specific signal is received on the basis of receiving a signal requesting transmission of its own identification information from the other party of the communication in the communication that has been started, the position information of the own vehicle and the communication area of the narrow area communication are transmitted. A specific signal transmitting unit that transmits a specific signal to a user interface device that notifies an occupant of information about a communication partner of the current communication area with a request for transmission of identification information based on information about the communication partner of the A short-range communication vehicle comprising: identification information manual transmission means for transmitting own identification information to a communication partner based on receiving an input indicating transmission of identification information by an occupant. It is a vessel.
[0012]
Thereby, the request notification means in the on-board communication device that automatically starts communication when entering the communication area of the short-range communication receives a signal requesting transmission of its own identification information from the other party of this communication. , A certain signal is notified to the user interface device. The user interface device that has received the specific signal notifies the occupant of the request for transmission of the identification information and the information about the communication partner of the current communication area. The occupant who has received the notification determines whether or not to transmit the identification information by confirming the information on the current position of the vehicle and the surrounding structures such as stores and the communication partner by the user interface device. be able to. When the occupant performs an input to transmit the identification information, the identification information manual transmission means receives the input and transmits the identification information to the communication partner, so that the identification information is transmitted by the input of the occupant. become. Therefore, the narrow-area communication vehicle-mounted device for road-vehicle short-range communication, which automatically starts communication when entering the communication area, transmits the identification information of the narrow-area communication vehicle-mounted device to the communication partner not intended by the occupant. Can be prevented.
[0013]
The method by which the identification information manual transmission means receives an input indicating that the identification information is transmitted by the occupant may be direct or indirect.
[0014]
According to a fourth aspect of the present invention, in the short-range communication vehicle-mounted device according to the third aspect, a communication partner list which is a list of identification information of communication partners in the short-range communication automatically started is stored. The communication device includes a memory, and the specific signal transmitting unit receives a signal requesting transmission of the identification information of the communication partner from the communication partner and identification information of the communication partner. A specific signal is transmitted to the user interface device based on the absence of the identification information of the communication partner.
[0015]
As a result, the on-board short-range communication device can automatically transmit its own identification information only to the communication partner not in the communication partner list without inputting by the occupant. Information can be transmitted.
[0016]
According to a fifth aspect of the present invention, in the in-vehicle short-range communication device according to the second or fourth aspect, in the communication automatically started, a signal requesting transmission of its own identification information from a communication partner. And receiving the identification information of the communication partner and transmitting the identification information of the communication partner to the communication partner based on the presence of the communication partner identification information in the communication partner list stored in the memory. An identification information automatic transmission means is provided.
[0017]
In this way, by storing the identification information of the communication partner that may transmit the identification information in the communication partner list, the on-board short-range communication vehicle-mounted device does not need to input the occupant to these communication partners. , It is possible to automatically transmit its own identification information.
[0018]
According to a sixth aspect of the present invention, there is provided the narrow-area communication vehicle-mounted device according to the second, fourth, or fifth aspect, further comprising means for changing the contents of the communication partner list based on an occupant input. And
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
(1st Embodiment)
FIG. 1 shows a configuration of a road-vehicle narrow-area communication system using DSRC according to a first embodiment of the present invention. In the present embodiment, antennas 1 are scattered in the vicinity of roads, toll gates, stores, parking lots and the like (hereinafter referred to as infrastructure), and a communication area with a radius of several meters is formed around this antenna. The DSRC controller 2 subjects the signal received by the antenna 1 to processing such as amplification, demodulation, and A / D conversion in accordance with the DSRC standard, and transmits the received data to the application processing device 3. Further, the DSRC controller 2 performs processing such as D / A conversion, modulation, and amplification on transmission data received from the application processing device 3 according to the DSRC standard, and outputs a wireless 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 tollgate, a roadside, or the like, and performs a process for performing various services to a communication partner of the DSRC. 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 the ID to a DSRC communication partner. I have. Hereinafter, the ID of the application processing apparatus 3 is referred to as an infrastructure ID. As the infrastructure ID, for example, a ten-digit alphanumeric string can be used. Further, the application processing device 3 transmits a command (signal) for requesting a communication partner to transmit an ID as identification information during DSRC communication.
[0021]
The DSRC vehicle-mounted device 4 is a communication device (a short-range communication vehicle-mounted device) mounted on a vehicle (not shown) for performing DSRC communication. The DSRC vehicle-mounted device 4 operates by receiving power supply from a battery power supply when the vehicle is turned on. FIG. 2 is a block diagram showing the configuration of the vehicle-mounted DSRC device 4. The DSRC vehicle-mounted 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, and A / D conversion on the radio signal received from the antenna 41 in accordance with the DSRC standard, and transmits the I and Q data obtained thereby to the baseband processing unit 43. I do. Further, 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 obtains the radio signal Is output from the antenna 1.
[0023]
The baseband processing unit 43 has a DSP, and upon receiving I and Q data from the radio unit 42, converts the data into ASK, π / 4 shift QPSK, BPSK-OFDM, QPSK-OFDM, 16QAM-OFDM, 64QAM- Digital demodulation into a data sequence is performed according to a demodulation method such as OFDM. Then, the baseband processing unit 43 outputs the demodulated data to the control unit 44.
[0024]
When the baseband processing unit 43 receives data for wireless transmission from the control unit 44, the baseband processing unit 43 converts these transmission data into I, Q, and Q in accordance with modulation schemes such as BPSK-OFDM, QPSK-OFDM, 16QAM-OFDM, and 64QAM-OFDM. Perform orthogonal coding (digital modulation) on the data. Then, 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 an EPROM 49, which is a rewritable nonvolatile memory, and reads information from a RAM 45, which is a volatile memory, as required for the operation. Write. The EPROM 49 stores an ID (hereinafter, referred to as an in-vehicle device ID) as identification information of the vehicle-mounted DSRC 4, a list of infrastructure IDs, and the like, in addition to a program for operating the CPU. This list of infrastructure IDs (hereinafter simply referred to as a list) is a list of one or more communication partners who may automatically transmit the vehicle-mounted device ID as described later. As the vehicle-mounted device ID, for example, an alphanumeric string of about ten and several digits can be used. The control unit 44 exchanges control information and communication information with the control unit 44, the button 46, the display 47, and the speaker 48 as necessary for the operation.
[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 for deleting a list, which will be described later, and the selection button is a button for inputting various selections and determinations.
[0027]
When the vehicle-mounted DSRC device 4 configured as described above performs communication between the infrastructure and the DSRC, the signal received by the antenna 41 is amplified, demodulated, and D / A-converted by the radio unit 42 at the time of reception. The signal is digitally demodulated and processed by the control unit 44 according to 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 wireless unit 42, and then output from the antenna 1 as a wireless signal. Is done.
[0028]
Hereinafter, the operation in the communication between the vehicle-mounted DSRC device 4 and the application processing device 3 will be described with reference to the sequence diagrams of FIGS.
[0029]
FIG. 3 is a sequence diagram showing the operation of the control unit 44 when the infrastructure ID of the infrastructure in the communication area in which the vehicle equipped with the DSRC vehicle-mounted device 4 has entered does not exist in the list of the EPROM 49.
[0030]
First, when the vehicle equipped with the vehicle-mounted DSRC device 4 enters the communication area formed by the antenna 1, the control unit 44 of the vehicle-mounted DSRC device 4 performs a process for establishing a wireless link with the application processing device 3 according to the DSRC standard. This is performed automatically (step 105). In the process of establishing the wireless link, the vehicle-mounted DSRC 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 giving an identifier for distinguishing each other from others, but since the identifier given to the vehicle-mounted DSRC device 4 is a temporary random ID, the DSRC Unlike the vehicle-mounted device ID unique to the vehicle-mounted device 4, it cannot be used for specifying the DSRC vehicle-mounted device 4 later.
[0031]
When the link is established, the application processing device 3 transmits a signal requesting the DSRC vehicle-mounted device 4 to transmit the vehicle-mounted device ID together with the stored own infrastructure ID, and the control unit 44 receives the signal. (Step 110). The signal of the vehicle-mounted device ID request is repeatedly transmitted until the vehicle-mounted device ID is transmitted from the DSRC vehicle-mounted device 4.
[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 it is not present (step 115), and based on the determination that it is not present, a signal to reject the vehicle-mounted device ID transmission is transmitted to the application processing device 3 via the baseband processing unit 43 or the like (step 115). 120) Also, the occupant 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 make a voice notification such as "Do you want to transmit the ID?" Alternatively, it is also realized by controlling the display 47 and causing the display 47 to display the same character.
[0033]
Then, even if the control unit 44 subsequently receives the vehicle-mounted device ID transmission request from the same infrastructure ID (step 130), the control unit 44 returns the vehicle-mounted device ID rejection signal unless there is an input from the occupant to be described later (step 130). 135).
[0034]
While the vehicle is in the communication area, when the occupant who has received the above-mentioned notification performs an input to transmit the vehicle-mounted device ID by pressing the selection button, the control unit 44 detects that the button is pressed (step 140). ), A flag indicating that the button press is 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, when detecting that the selection button is pressed for a long time, the infrastructure ID is added to the list in the EPROM 49 (step 145). A long press is a press that lasts for a fixed time (for example, 3 seconds) or more. As a result, even when the vehicle exits the communication area and reenters the communication area, the vehicle-mounted device ID can be automatically transmitted to the infrastructure without input from the occupant.
[0036]
Thereafter, upon receiving the vehicle-mounted device ID transmission request from the application processing device 3 again (step 150), the control unit 44 determines whether the DSRC vehicle-mounted device stored in the EPROM 49 is based on the fact that the selection button pressed flag is set to on. The in-vehicle device ID of No. 4 is transmitted to the application processing device 3 (step 155).
[0037]
The application processing device 3 that has received the vehicle-mounted device ID starts communication for service processing based on the vehicle-mounted device ID. The service processing includes checking the received OBE ID with an OBE ID list registered in advance, and permitting entry into the parking lot. Further, at this time, the control unit 44 performs a process for receiving the service process, that is, a voice notification of the entry permission based on the reception of the notice of the entry permission (step 160).
[0038]
FIG. 4 is a sequence diagram showing the operation of the control unit 44 when the infrastructure ID of the infrastructure in the communication area where the vehicle equipped with the on-board DSRC device 4 has entered exists in the list of the EPROM 49. 4, the same step numbers as in FIG. 3 denote the same processes by the control unit 44, and a detailed description thereof will be omitted.
[0039]
Upon entering the communication area and establishing a link, and receiving a request for transmission of the vehicle-mounted device ID and the infrastructure ID from the application processing device 3, the control unit 44 determines whether the received infrastructure ID is in the list stored in the EPROM 49 or not. Is determined. Here, it is determined that the vehicle-mounted device of the DSRC vehicle-mounted device 4 is transmitted to the application processing apparatus 3 without making the occupant determine whether or not the transmission of the vehicle-mounted device ID is possible based on the determination (step 215). The ID is transmitted (step 220). Then, the speaker 48 is controlled to generate a sound for notifying that the vehicle-mounted device ID has been transmitted. This sound may be a buzzer sound of “beep” or a sound of “ID transmitted”. Then, the application processing device 3 and the control unit 44 enter a service process and a process for receiving the service process (step 160).
[0040]
By pressing the menu button several times, the mode is switched to the list deletion mode. When the selection button is pressed in this mode, all the infrastructure IDs in the list are deleted.
[0041]
By the operation of the vehicle-mounted DSRC device 4 as described above, the control unit 44 of the vehicle-mounted DSRC device 4 which automatically starts communication when entering the communication area of the DSRC transmits its vehicle-mounted device ID from the communication partner. Receiving the requested signal and requesting transmission of the vehicle-mounted device ID based on the absence of the communication partner, that is, the infrastructure ID of 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 checking the current position of the vehicle and the surrounding structures such as stores. This is made possible by the fact that the communication area of the narrow area communication is so small that the occupant can make such a determination. When the occupant inputs an instruction to transmit the in-vehicle device ID by pressing the button, the control unit 44 receives this input and transmits the in-vehicle device ID to the communication partner. Will be transmitted. Therefore, it is possible to prevent the vehicle-mounted device of the short-range communication between the road and the vehicle, which automatically starts communication when entering the communication area, from transmitting the vehicle-mounted device ID of the vehicle-mounted device to a communication partner not intended by the occupant. .
[0042]
In addition, by storing the infrastructure ID of the communication partner to whom the vehicle-mounted device ID may be transmitted in the above list, the DSRC vehicle-mounted device 4 can automatically transmit to the communication partner without input by the occupant. It becomes possible to transmit its own vehicle-mounted device ID.
[0043]
In addition, since the infrastructure ID can be registered in the list by pressing and holding the button, the list in which the occupant can automatically transmit the vehicle-mounted device ID can be changed. Also, since one button can be used for both inputting the transmission of the vehicle-mounted device ID and registering it in the list of infrastructure IDs, the number of buttons in a DSRC vehicle-mounted device that is usually small and difficult to have a large number of buttons can be used. Can be saved.
[0044]
(2nd 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 DSRC is configured to notify the occupant of the vehicle of the reception of the signal of the vehicle-mounted device ID transmission request and to directly receive the input of transmitting the vehicle-mounted device ID by the occupant. This is to be a car navigation device instead of an on-board device.
[0045]
Hereinafter, only the portions of this embodiment different from the first embodiment will be described in detail. FIG. 5 shows a configuration of the vehicle-mounted DSRC device 4 ′ according to the present embodiment. 5, the same components as those of the vehicle-mounted DSRC device 4 shown in FIG. 2 are denoted by the same reference numerals, and the description thereof will be omitted.
[0046]
The car navigation device 52 has a display and a memory for storing map information. The car navigation device 52 also acquires the current position information of the own vehicle and the running history information, and determines the position on the map where the own vehicle is running or running. This is a device that displays on a display whether or not the user has traveled, searches the map information or traffic condition information for an optimal route to the destination, and displays the result on the display. In the present embodiment, the car navigation device 52 has, as map information, information on a DSRC communication area and information on an infrastructure for each communication area. The information on the infrastructure is, for example, a correspondence between an infrastructure ID assigned to the infrastructure and a name of the infrastructure, such as a store name and a parking lot name. The information on this infrastructure can be downloaded using communication means such as DSRC or a mobile phone.
[0047]
Further, when the car navigation device 52 according to 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 issued based on the information regarding the infrastructure for each DSRC communication area. This is a user interface device for notifying the occupant of information about the communication partner of the current communication area together with the information. 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. Further, the car navigation device 52 is configured to directly receive an input by the occupant to transmit the vehicle-mounted device ID, and to transmit a signal to the effect that the input has been received to the control unit 44.
[0048]
The external interface 51 mediates transmission and reception of signals between the control unit 44 and devices external to the on-board DSRC 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 differences between the operation of the vehicle-mounted DSRC device 4 ′ of the present embodiment and the operation of the vehicle-mounted DSRC device 4 ′ of the first embodiment is that, in the automatically started communication, a request is made to transmit the vehicle-mounted device ID from the other party of this communication. The specific signal is transmitted to the car navigation device 52 based on the reception of the signal to perform the communication and the absence of the infrastructure ID of the communication partner in the communication partner list stored in the EPROM 49. The in-vehicle device ID is transmitted to the current communication partner based on indirectly receiving an input to the car navigation device 52 to transmit the in-vehicle device ID via the car navigation device 52.
[0050]
Hereinafter, the operation of the DSRC vehicle-mounted device 4 ', the application processing device 3, and the car navigation device 52 when the vehicle-mounted DSRC device 4' and the application processing device 3 perform communication will be described with reference to the sequence diagrams of FIGS. Will be explained. In the processing of the control unit 44 in FIGS. 6 and 9, the same steps as those in FIGS. 3 and 4 are denoted by the same step numbers, and the detailed description thereof will be omitted.
[0051]
FIG. 6 is a sequence diagram showing the operation of the control unit 44 and the like when the infrastructure ID of the infrastructure in the communication area where the vehicle equipped with the on-board DSRC device 4 'has entered does not exist in the list of the EPROM 49.
[0052]
When the 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 The transmission request is received (step 110), it is determined that the received infrastructure ID is not included in the list of the EPROM 49 (step 115), and the application processor 3 is notified of the rejection of the vehicle-mounted device ID transmission (step 120). .
[0053]
The control unit 44 transmits the specific signal described above, that is, a signal including the received infrastructure ID and information indicating that communication with the infrastructure having the infrastructure ID has started, via the external interface 51 to the car navigation device 52. (Step 625).
[0054]
The car navigation device 52 that has received the specific signal searches for information corresponding to the infrastructure ID received from the control unit 44 from information on the infrastructure in the map information (step 310). Then, a store name or the like corresponding to the infrastructure ID found as a result of the search is displayed on the display to notify the occupant. The display for this notification is, for example, a character display "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 include a speaker, and thereby output the same sound.
[0055]
While the vehicle is in the communication area, when the occupant who has received the above notification inputs an instruction to transmit the vehicle-mounted device ID by using 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 to the effect that the in-vehicle device ID can be transmitted to the control unit 44.
[0056]
The control unit 44 receives this signal (step 640), sets a flag indicating that the vehicle-mounted device ID may be transmitted to the infrastructure based on the reception in the RAM 45, and turns on the flag. This flag is turned off when the vehicle leaves the communication area. As a result, the vehicle-mounted DSRC device 4 'can transmit the vehicle-mounted device ID to the infrastructure.
[0057]
The service processing of the application processing apparatus 3 in this embodiment includes, for example, menu transmission of food and drink, reception of an order, and storage of the time, the received vehicle-mounted device ID and the order content. 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, as a process of receiving the service (step 160). Receiving an order by selection and transmitting the order to the application processing device 3 are examples.
[0058]
Thereafter, the car navigation device 52 displays the position of the infrastructure on the map as shown in the upper part of FIG. 7 on the display, and then (for example, several seconds later) further registers “XXX in automatic transmission as shown in the lower part of FIG. Is displayed to prompt the occupant to select "Yes" or "No." At this time, when the occupant is provided in the car navigation device 52 and performs an input to register the infrastructure ID in the list, that is, an input of “Yes” by a preset user interface, the car navigation device 52 performs the input. And sends a signal to the control unit 44 to register the infrastructure ID in the list. When the display also serves as an input device such as a touch panel, this input can be performed by touching the “Yes” display portion of the display.
[0059]
The control unit 44 receives this signal (step 670), and registers the infrastructure ID in the list based on the reception (step 680). As a result, even when the vehicle exits the communication area and reenters the communication area, the vehicle-mounted device ID can be automatically transmitted to the infrastructure without input from the occupant.
[0060]
In addition, registration in this list is performed by displaying a list on the display of the car navigation device 52 as shown in FIG. 8 and selecting the same by the occupant, whereby the infrastructure ID of the infrastructure selected by the car navigation device 52 is displayed. It may be performed by notifying the control unit 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 equipped with the on-board DSRC device 4 ′ has entered exists in the list of the EPROM 49. In FIG. 9, the same steps as those in FIG. 6 performed by the control unit 44 are denoted by the same step numbers, and detailed description thereof will be omitted.
[0062]
Upon entering the communication area and establishing a link, and receiving a request for transmission of the vehicle-mounted device ID and the infrastructure ID from the application processing device 3, the control unit 44 determines whether the received infrastructure ID is in the list stored in the EPROM 49 or not. Is determined. Here, it is determined that the vehicle-mounted device of the DSRC vehicle-mounted device 4 is transmitted to the application processing apparatus 3 without making the occupant determine whether or not the transmission of the vehicle-mounted device ID is possible based on the determination (step 215). The ID is transmitted (step 220).
[0063]
Then, the control unit 44 transmits to the car navigation device 52 the infrastructure ID received from the application processing device 3 and a signal indicating that the vehicle-mounted device ID has been transmitted to the infrastructure having the infrastructure ID. (Step 730).
[0064]
The car navigation device 52 that has received the infrastructure ID and the signal searches for information corresponding to the infrastructure ID received from the control unit 44 from information on the infrastructure in the map information (step 410). Then, a store name or the like corresponding to the infrastructure ID found as a result of the search is displayed on the display, thereby notifying the occupant that the vehicle-mounted device ID has been transmitted. The display for this notification is, for example, a character display of “ID has been transmitted to XXX.” XXX is an infrastructure name such as a store name. Further, the car navigation device 52 may include a speaker, and thereby output the same sound.
[0065]
Note that when the occupant inputs an instruction to delete the list from the preset interface of the car navigation device 52, the car navigation device 52 transmits a signal requesting transmission of the list to the control unit 44. Upon receiving this signal, the control unit 44 reads the list from the EPROM 49 and transmits the list 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. Then, an input for selecting an infrastructure to be deleted is received from the occupant, and a signal requesting that the information of the infrastructure be deleted from the list is transmitted to the vehicle-mounted DSRC device 4 based on the received selection. Then, the vehicle-mounted DSRC device 4 'deletes the information on the infrastructure from the list in the EPROM 49 based on this signal.
[0066]
Due to the operation of the above-described DSRC vehicle-mounted device 4 ', the control unit 44 of the DSRC vehicle-mounted device 4', which automatically starts communication when entering the DSRC communication area, transmits its own vehicle-mounted device ID from the communication partner. Receiving the signal requesting that the communication partner, ie, the infrastructure ID of the application processing apparatus 3 not exist in the list of infrastructure IDs stored in the EPROM 49, to transmit the specific signal described above to the car navigation apparatus. Notify 52. The car navigation device 52 that has received the specific signal notifies the occupant of the request for transmission of the vehicle-mounted device ID and the infrastructure ID of the communication partner in the current communication area. The occupant receiving this notification confirms whether or not the vehicle-mounted device ID is to be transmitted by confirming the display of information on the communication partner by the car navigation device 52 in addition to the current position of the vehicle and the surrounding structures such as stores. Can be determined. When the occupant performs an input to the car navigation device 52 to transmit the vehicle-mounted device ID, the control unit 44 receives the input via the external interface 51 and transmits the vehicle-mounted device ID to the communication partner. Then, the vehicle-mounted device ID is transmitted by the input of the occupant. Therefore, it is possible to prevent the vehicle-mounted device of the short-range communication between the road and the vehicle, which automatically starts communication when entering the communication area, from transmitting the vehicle-mounted device ID of the vehicle-mounted device to a communication partner not intended by the occupant. .
[0067]
In addition, by storing the infrastructure ID of the communication partner to whom the vehicle-mounted device ID may be transmitted in the above list, the DSRC vehicle-mounted device 4 can automatically transmit to the communication partner without input by the occupant. It becomes possible to transmit its own vehicle-mounted device ID.
[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 on the infrastructure for each communication area of the DSRC, and when there is a request for transmission of the vehicle-mounted device ID, communication of the communication in the current communication area is performed. Information about the other party may be notified to the occupant.
[0069]
In each of the above-described embodiments, the processing of each step illustrated in FIGS. 3, 4, 6, and 9 of the control unit 44 is configured as a unit that implements the function indicated by each processing.
[0070]
As a specific example, in the communication automatically started in FIG. 3, the notification processing of step 125 is performed based on the reception of a signal requesting the transmission of the own identification information from the communication partner. Request notification means for notifying the occupant that there is a transmission request is configured.
[0071]
In addition, the transmission processing in step 155 in FIG. 3 constitutes an identification information manual transmission unit that transmits its own identification information to a communication partner based on receiving an input by the occupant to transmit identification information.
[0072]
In addition, in the transmission process of step 625 in FIG. 6, a specific signal is transmitted to the user interface device based on receiving a signal requesting transmission of its own identification information from a communication partner in the communication automatically started. Of the specific signal transmitting means for transmitting the signal.
[0073]
Also, in the communication automatically started by the transmission process of step 220 in FIGS. 4 and 9, a signal requesting transmission of its own identification information from the communication partner and identification information of the communication partner are received. The identification information automatic transmission means for transmitting the identification information of the communication partner to the communication partner based on the fact that the identification information of the communication partner is included in the communication partner list stored in the memory.
[0074]
Further, the processing of step 145 in FIG. 3 and step 680 in 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 input of the occupant.
[0075]
In the first and second embodiments, the communication partner list is a list of communication partners that may automatically transmit their own identification information without inquiring the occupant. , 4 ′ does not have this list and may always determine whether or not to transmit the identification information by the input of the occupant. Further, the vehicle-mounted DSRC devices 4 and 4 ′ may have a list that does not transmit the vehicle-mounted device ID without inquiring the occupant.
[0076]
Further, in the second embodiment, an input to transmit the identification information of the occupant is made to the car navigation device 52, and the vehicle-mounted DSRC device 4 ′ receives the input to the effect via the car navigation device 52. However, the vehicle-mounted DSRC device 4 ′ may directly receive this input by pressing a button or the like as in the first embodiment.
[0077]
Further, in the second embodiment, the car navigation device 52 notifies the occupant of the vehicle of the reception of the signal of the vehicle-mounted device ID transmission request, and directly receives the input of transmitting the vehicle-mounted device ID by the occupant. There is no necessity, and upon receiving a specific signal, 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 short-range communication, and a communication partner of the current communication area is present. It may be a device having only a function of notifying the occupant of information regarding the occupant.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a configuration of a road-to-vehicle narrow-area communication system using DSRC according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a configuration of a vehicle-mounted DSRC device 4;
FIG. 3 is a sequence diagram illustrating an operation of communication of the control unit 44 with the application processing apparatus 3.
FIG. 4 is a sequence diagram showing an operation of communication of the control unit 44 with the application processing apparatus 3.
FIG. 5 is a diagram illustrating a configuration of a vehicle-mounted DSRC device 4 ′ according to a second embodiment.
FIG. 6 is a sequence diagram showing the operation of communication between the application processing device 3 of the control unit 44 and the car navigation device 52.
FIG. 7 is a diagram showing display contents of a display of the car navigation device 52.
FIG. 8 is a diagram showing display contents of a display of the car navigation device 52.
FIG. 9 is a sequence diagram showing the operation of communication between the application processing device 3 and the car navigation device 52 of the control unit 44.
[Explanation of symbols]
1 ... antenna, 2 ... DSRC controller, 3 ... application processing device,
4, 4 ': on-board DSRC, 41: antenna, 42: radio section,
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 (6)

Used for narrow-area communication between road and vehicle, when entering the communication area of the narrow-area communication, a narrow-area communication vehicle-mounted device that automatically starts the narrow-area communication,
In the automatically started communication, a request notification for notifying an occupant that there is a request for transmission of the identification information based on receiving a signal requesting transmission of own identification information from a partner of the communication. Means,
An identification information manual transmission means for transmitting the identification information of the self to the other party of the communication based on receiving an input indicating that the identification information is transmitted by the occupant; vessel. A memory for storing a communication partner list, which is a list of identification information of the communication partners,
In the automatically started communication, the request notifying means receives a signal requesting transmission of its own identification information from the communication partner and identification information of the communication partner, and stores the signal in the memory. 2. The narrow area according to claim 1, wherein the occupant is notified that there is a request for transmission of the identification information based on the absence of the identification information of the communication partner in the communication partner list. Communication on-board equipment. Used for narrow-area communication between road and vehicle, when entering the communication area of the narrow-area communication, a narrow-area communication vehicle-mounted device that automatically starts the narrow-area communication,
In the automatically started communication, based on receiving a signal requesting transmission of its own identification information from the other party of this communication, when a specific signal is received, the position information of the own vehicle and the narrow area communication A specific signal transmission for transmitting the specific signal to a user interface device for notifying an occupant of a request for transmission of the identification information based on the information on the communication partner and information about a communication partner of the current communication area in the communication area. Means,
An identification information manual transmission means for transmitting the identification information of the self to the other party of the communication based on receiving an input indicating that the identification information is transmitted by the occupant; vessel. A memory for storing a communication partner list, which is a list of identification information of the communication partners in the short-range communication that automatically starts,
The specific signal transmitting means receives a signal requesting transmission of its own identification information from the communication partner and the identification information of the communication partner, and includes the communication partner list stored in the memory in the communication partner list. The on-board short-range communication device according to claim 3, wherein the specific signal is transmitted to the user interface device based on the absence of the identification information of the communication partner. In the automatically started communication, receiving a signal requesting transmission of its own identification information from the communication partner and identification information of the communication partner, and the communication partner list stored in the memory. 5. The communication device according to claim 2, further comprising: identification information automatic transmission means for transmitting the identification information of the communication partner to the communication partner based on the identification information of the communication partner. Narrow-range communication on-board equipment. 6. The on-board short-range communication device according to claim 2, further comprising means for changing the contents of the communication partner list based on the input of the occupant.

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