JP2009192244A - Driving assisting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assisting system which can present facilities being easier to utilize for a crew. <P>SOLUTION: The driving assisting system 1 is equipped with a property detecting means 2c which detects the property of the crew of a vehicle, a facility information detecting means 2d which detects facility information regarding the facilities utilized by the vehicle and a communication means 2e which transmits the facility information corresponding to the property to a statistical processing means 3a of a center on the road side, and the statistical processing means 3a of the center on the road side. The statistical processing means 3a accumulates the facility information corresponding to the property which it receives from the communication means 2e, and processes statistically the accumulated facility information corresponding to the property so as to calculate the state of utilization of the facility corresponding to the property. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a driving assistance device for a driver suitable for application to vehicles such as passenger cars, trucks, and buses.

  In recent vehicles, as a driving assistance device for improving the convenience by guiding the route information to the driver based on the destination input by the driver and the current position of the vehicle detected by GPS Car navigation systems are often installed. In such a car navigation system, guidance by a display or voice is performed when guiding route information to a driver.

Among these, in particular, in a car navigation system as described in Patent Document 1, not only guides route information, but also searches for facilities according to attributes such as obstacles of occupants including the driver, and according to the attributes. It has been proposed to present usage information about the facilities.
JP 2006-331363 A

  However, in such a car navigation system, when searching for a facility corresponding to an attribute of an occupant, usage information related to the facility corresponding to the attribute is input in advance from the input device, and the search is performed from the input usage information. However, the usage information itself that is the target of the search does not reflect the actual use of the passenger and the vehicle on which the passenger has boarded, and the input usage information is not updated from time to time. Presenting could not be realized.

  In view of the above problems, an object of the present invention is to provide a driving assistance device that can present a facility that is more easily used by a passenger.

In order to solve the above problem, the driving assistance device according to the present invention is:
Attribute detection means for detecting the attribute of a vehicle occupant, facility information detection means for detecting facility information relating to the facility used by the vehicle, and the facility information corresponding to the attribute is transmitted to the statistical processing means of the roadside center. A communication means, and a statistical processing means for the roadside center, wherein the statistical processing means accumulates the facility information corresponding to the attribute received from the communication means and corresponds to the accumulated attribute. The facility usage status corresponding to the attribute is calculated by statistically processing the facility information.

Here, in the driving assistance device,
The usage state is typically the number of times of use of the facility corresponding to the attribute, and in this case, the statistical processing is to count the number of times of use of the facility corresponding to the attribute. The attribute detection means, the facility information detection means, and the communication means are installed on the vehicle side.

  The facility information is information including the facility name and location of the facility, and the facility name indicates that the facility is a parking lot or a supermarket, for example. That is, the facility information corresponding to the attribute is information including a facility name and a location of the facility actually used by the vehicle on which the occupant having the attribute has boarded.

  According to this, after detecting the facility information regarding the facility used by the actual vehicle, the detection result is transmitted to the roadside center, accumulated, and statistically processed, so that the facility corresponding to the attribute of the occupant is detected. Since the usage status can be calculated, the usage status of the facility corresponding to the attribute can be updated at any time by reflecting the actual usage status of the occupant, and a facility that is more easily used by the occupant is presented. Can be made possible. The facility that is more easily used by the occupant is, for example, a facility that is used most frequently or more than a predetermined number of times in the usage status of the facility according to the attribute.

In the driving assistance device,
The attribute is a traffic weak person, and the traffic weak person typically includes a handicapped person, an elderly person, and an infant. .

  In this way, when the attribute is a traffic weak person, the usage status of the facility according to the traffic weak person can be updated at any time, reflecting the actual usage situation of the traffic weak person. It is possible to present an easy-to-use facility.

Furthermore, in the driving assistance device,
The attribute detection means preferably detects the attribute using an occupant protection device mounted on the vehicle. In this case, the occupant protection device typically includes a child seat or a wheelchair, and the attribute detection means detects contact information of a fixing jig that fixes the child seat or the wheelchair to the vehicle. Thus, the attribute can be detected by simpler means.

  That is, in the driving assistance device, the facility corresponding to the attribute is determined to be easier to use for the occupant when the occupant protection device including a child seat or a wheelchair is mounted on a vehicle, The occupant and the vehicle on which the occupant has boarded are facilities that are actually used, that is, a stop.

  More specifically, in the case where a child seat is mounted on the vehicle, the facility is a supermarket where a nursing product or the like can be purchased and a parking lot associated therewith, and if the wheelchair is mounted on the vehicle, There is a high possibility that the facility will be a parking lot with lifting equipment for wheelchairs, for example.

Furthermore, in the driving assistance device,
It is preferable to provide an acquisition unit that acquires the usage status of the facility corresponding to the attribute from the statistical processing unit via the communication unit.

  According to this, the usage status of the facility corresponding to the attribute calculated and obtained by the statistical processing means of the roadside center can be acquired on the vehicle side.

Furthermore, in the driving assistance device,
It is preferable to provide a presentation unit that presents the usage status of the facility corresponding to the attribute. According to this, the utilization status of the facility corresponding to the attribute acquired by the acquisition unit can be presented to the occupant.

In addition, in the driving assistance device,
It is preferable that a plurality of the vehicles exist with respect to the roadside center.

  According to this, the use status of the facility corresponding to the attribute of the occupant is accumulated and statistically processed at the roadside center after the facility information regarding the facility used by the actual vehicle is detected in the plurality of vehicles. Therefore, it is possible to increase the population of the detection target when updating the facility usage status according to the attribute to the actual usage status of the passenger and updating it as needed. Therefore, it is possible to more accurately present a facility that is easier to use.

  ADVANTAGE OF THE INVENTION According to this invention, the driving assistance device which can show the facility which is easier to use for a passenger | crew can be provided.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a schematic view showing an embodiment of a driving assistance device according to the present invention. The driving assistance device 1 includes a car navigation ECU 2 (Electronic Control Unit) provided in a plurality of vehicles, a server 3 provided in a roadside center, and a base station 4. The server 3 and the base station 4 are connected via a network, and the car navigation ECU 2 is configured to be able to communicate with the base station 4 connected to the network in a wireless or wired manner.

  This network is, for example, a public switched telephone network (PSTN), a digital communication network (ISDN), a wired line such as an optical fiber, a mobile phone network, a PHS (Personal Handy-phone System) network, a wireless LAN network, a WiMAX (Worldwide) Interoperability for Microwave Access), wireless, such as satellite phone and beacon.

  Next, the server 3 at the roadside center will be described in detail with reference to the drawings. FIG. 2 is a schematic diagram showing a roadside center server 3 that forms part of the driving assistance apparatus 1 according to the present invention. The server 3 executes control at the roadside center according to the present invention.

  As shown in FIG. 2, the server 3 includes a CPU 71, a main storage device 72, a storage device 73 such as an HDD, a display device 74, an input device 75, a drive device 76, and a communication device 77 that are mutually connected by a bus. Configured.

  The CPU 71 reads various programs such as the OS and applications from the storage device 73 and executes them to provide various functions and to comprehensively control the processing performed by the server 3. The main storage device 72 is composed of a RAM and serves as a work area for temporarily storing the OS, programs, and data. The storage device 73 is a nonvolatile memory such as an HDD or a flash memory, and is a facility corresponding to attributes included in files such as an OS, a program, a driver, and transmission data transmitted from the car navigation ECU 2 and received via the communication device 77 Information is accumulated, and the usage status of the facility corresponding to the attribute calculated by statistically processing the facility information corresponding to the accumulated attribute is stored.

  The display device 74 draws on a display such as a liquid crystal with a predetermined resolution, number of colors, and the like according to a command of the CPU 71 based on screen information instructed by a program. For example, the display device 74 forms a GUI (Graphical User Interface) screen. Various windows and data necessary for operation are displayed on the display.

  The input device 75 includes a keyboard and a mouse, and is used for inputting various operation instructions. The drive device 76 is configured such that a storage medium 78 can be inserted, and reads out data stored in the storage medium 78 and sends it to the main storage device 72 or the like. In addition, the communication device 77 is an interface for connecting to a network such as the Internet or a LAN, and includes, for example, a modem, a NIC, or the like.

  When the CPU 71 executes the program, the server 3 functions as the statistical processing means 3a, receives facility information corresponding to the attribute transmitted by the communication means 2e of the car navigation ECU 2 via the communication device 14, and this attribute The facility usage corresponding to the attribute is calculated by statistically processing the facility information corresponding to the stored attribute information.

  Next, the car navigation ECU 2 will be described in detail with reference to the drawings. FIG. 3 is a schematic diagram showing an embodiment of a car navigation ECU 2 that forms part of the driving assistance device 1 according to the present invention.

  The car navigation ECU 2 includes a GPS (Global Positioning System) antenna 5, an IMU 6 (Inertial Measurement Unit), a steering sensor 7, a receiver 8, a database 9, a display 10, and a child seat fixed anchor. 11 and a wheelchair fixing anchor 12 are connected.

  Further, an ABS 13 (Anti Lock Brake System) and a communication device 14 are connected to the car navigation ECU 2 according to a communication standard such as CAN (Controller Area Network).

  The car navigation ECU 2 includes, for example, a CPU, a ROM, a RAM, a data bus that connects them to each other, and an input / output interface. 2b, function detection means 2c, facility information detection means 2d, communication means 2e, acquisition means 2f, and presentation means 2g.

  The GPS antenna 5 receives radio waves from three satellites among a plurality of satellites launched above the earth. Based on these radio waves, the search means 2a of the car navigation ECU 2 measures the current position at which the vehicle is located, that is, the longitude and latitude, for example, based on the principle of triangulation. When measuring altitude as well as longitude and latitude, four satellites are used.

  Here, the IMU 6 detects a yaw rate of the vehicle, and the steering sensor 7 is provided in a steering device of the vehicle and detects a steering angle. The database 9 is constituted by a storage medium such as a CD-ROM or a DVD-ROM, and stores and stores display map information and search map information.

  The display 10 is a map for display based on a command from the display means 2b of the car navigation ECU 2 for route information searched by the search means 2a of the car navigation ECU 2 based on the map information for search based on the input destination. While displaying with information, it functions also as a touchscreen, ie, an input device for a driver | operator to input search conditions, such as a destination.

  Furthermore, the child seat fixing anchor 11 is configured by, for example, a belt that is provided on a vehicle seat or the like and fixes the child seat to the vehicle. The child seat fixing anchor 11 is a belt against a fixing bracket such as a buckle provided on the vehicle side. The tongue plate or child seat provided on the side is fixed to the vehicle side, and when the tongue plate or the like is engaged with a buckle or the like, a contact output that is turned on is output to the attribute detection means 2c of the car navigation ECU 2 Output.

  In addition, the wheelchair fixing anchor 12 is also provided, for example, on the floor or pillar of the vehicle, and includes a fixing bracket and a fixing bracket that fix the wheelchair to the vehicle, and is provided on the vehicle side. The wheelchair is fixed to the vehicle side by inserting and engaging the fixing bracket provided on the wheelchair side with respect to the fixing bracket, and the output is turned on when the fixing bracket is engaged with the fixing bracket. The contact output is output to the attribute detection means 2c of the car navigation ECU 2.

  The ABS 13 is a device that prevents the wheel from being locked during braking, and obtains a vehicle speed for use in the control from a wheel speed sensor (not shown). The car navigation ECU 2 determines the vehicle speed from the ABS 13 to a communication standard such as CAN. It is acquired by transmission by.

  Furthermore, the receiver 8 is compliant with light or radio beacon, and receives road information including traffic jam information from VICS (Vehicle Information & Communication System).

  The above-described measurement of the current position of the vehicle by the search means 2a of the car navigation ECU 2 using the GPS antenna 5 is performed when the vehicle is located in a valley of a high-rise building or in the tunnel due to the characteristics of using radio waves from a satellite. When the vehicle is traveling, or when the vehicle is traveling under a viaduct, the GPS antenna 5 cannot receive radio waves from the satellite, so that the current position of the vehicle cannot be measured.

  Therefore, when the GPS antenna 5 cannot receive radio waves from the satellite, the search means 2a of the car navigation ECU 2 uses the vehicle speed acquired from the ABS 13, the yaw rate detected by the IMU 6, and the steering angle detected by the steering sensor 7. Then, the moving distance and direction of the vehicle are calculated and the current position of the vehicle is measured by autonomous navigation. Thereby, in addition to the measurement of the current position of the vehicle using the GPS antenna 5, the accuracy of the measurement of the current position where the total vehicle is located is increased.

  The display means 2b of the car navigation ECU 2 includes map information for display in the database 9, the current position of the vehicle measured by the above-described method, the destination input by the touch panel, that is, the display 10, and search means. The route information searched by 2a is displayed on the display 10 together.

  The communication between the server 3 and the car navigation ECU 2 described above is in accordance with the PPP protocol (Point to Point Protocol). A data link is established between them using the PPP protocol, and the TCP / IP protocol as the upper layer is established. (Transmission Control Protocol / Internet Protocol), HTTP (Hyper Text Transfer Protocol) and FTP (File Transfer Protocol) that are upwardly compatible with TCP / IP. In other words, the network constitutes the Internet or WAN (Wide Area Network), and enables transmission / reception of data such as transmission data including facility information corresponding to the attribute and return data including facility usage corresponding to the attribute. Is.

  In addition, the attribute detection means 2c of the car navigation ECU 2 is based on the contact output of the child seat fixing anchor 11 and the contact output of the wheelchair fixing anchor 12, and the attributes of the occupant, that is, the occupant is a traffic weak person including the disabled, elderly, and infants. Detect if there is.

  Further, the facility information detection means 2d of the car navigation ECU 2 detects the facility information related to the facility used by the vehicle, that is, the facility name and the location, from the parking position of the vehicle searched by the search means 2a and the search map information. As for the parking position, when the current position of the own vehicle searched by the search means 2a is in a facility having a predetermined time, the current position may be set as the parking position, or the current position when an operation signal such as a parking brake is detected. The position may be detected as a parking position. In addition, the communication means 2e of the car navigation ECU 2 transmits facility information corresponding to the attribute to the statistical processing means 3a of the server 3 at the roadside center.

  In addition, the acquisition means 2f of the car navigation ECU 2 is a facility corresponding to the attribute calculated and obtained by the statistical processing means 3a of the server 3 via the communication means 2e from the statistical processing means 3a of the server 3 at the roadside center. The presenting means 2g presents the occupant with the facility utilization status corresponding to the attribute obtained by the obtaining means 2f.

  Hereinafter, a specific mode in which the communication means 2e of the car navigation ECU 2 transmits the facility information corresponding to the attribute and the statistical processing means 3a of the server 3 calculates the usage status of the facility corresponding to the attribute will be described with reference to the drawings. I will explain. FIG. 3 is a schematic diagram showing an information processing mode of one embodiment of the driving assistance device according to the present invention.

  As shown by (1) in FIG. 4, the attribute detection means 2c of the car navigation ECU 2 for a plurality of vehicles is based on the contact output of the child seat fixing anchor 11 and the contact output of the wheelchair fixing anchor 12, and The facility information detecting means 2d of the car navigation ECU 2 detects facility information relating to the facility used by the vehicle, that is, the facility name and location. The position is detected from the parking position of the vehicle searched by the search means 2a and the map information for search.

  Furthermore, the communication means 2e of the car navigation ECU 2 transmits the facility information detected by the facility information detection means 2d corresponding to the attribute detected by the attribute detection means 2c to the statistical processing means 3a of the server 3 at the roadside center.

  Here, among the plurality of vehicles, there are vehicles equipped with child seats as shown in 15 and vehicles equipped with wheelchairs as shown in 16, and which facilities these multiple vehicles use, that is, stop by Therefore, the facility information transmitted to the server 3 at the roadside center is different. Here, for example, there are three types of facilities: A parking lot, B supermarket, and C supermarket.

  That is, the facility corresponding to the attribute is a facility that is judged to be easier for the occupant to use in the vehicle 15 on which the child seat is mounted, and that is actually used by the occupant and the vehicle 15 on which the occupant has boarded, that is, the facility that has stopped. In the vehicle 16 in which the wheelchair is mounted, it is determined that it is easier to use for the occupant, and the occupant and the vehicle 16 on which the occupant has boarded are actually used, that is, the facility where they stopped. Specifically, in the vehicle 15, the facility that stopped by is likely to be a supermarket that can purchase, for example, nursing supplies and a parking lot that accompanies it, and in the vehicle 16, the facility that visited is an elevator for wheelchairs, for example. There is a high possibility that the parking lot will have a parking lot.

  Under such circumstances, in (2) in FIG. 4, the facility information associated with the attribute of the occupant being a traffic weak is transmitted to the statistical processing means 3a of the server 3 at the roadside center and accumulated. Then, statistical processing is performed, and the usage status of the facility corresponding to the attribute is calculated and obtained. Here, the usage state indicates the number of times of use. For example, the number of times of use for each facility per month is counted, that is, totaled, and stored in the server 3.

  Subsequently, in (3) in FIG. 4, based on the request of the acquisition means 2f of the car navigation ECU 2, from the statistical processing means 3a of the server 3, the use frequency of each facility per month, that is, the use of the facility corresponding to the attribute The situation is transmitted, the acquisition means 2f acquires it, and the presentation means 2g of the car navigation ECU 2 displays the use frequency of each facility per month, that is, the usage status of the facility corresponding to the attribute on the display 10 To do.

  This display content may be, for example, a table as shown in (4) of FIG. 4, and the number of vehicles 15 wearing child seats dropped in this month for each of the three types of facilities, A parking lot, B supermarket, and C supermarket. = Display usage count. Here, 82 vehicles 15 equipped with child seats stop at parking lot A, 210 vehicles 15 equipped with child seats stop at Supermarket B, and 0 vehicles 15 equipped with child seats stop at Supermarket C. ing. That is, according to the presented table, the occupant can recognize that the facility that is most easily used is the B supermarket, and the facility that is most easily used is the parking lot A.

  The control content of the driving assistance apparatus 1 described above is demonstrated using a flowchart. FIG. 5 is a flowchart showing the control contents of the driving assistance device 1 according to the present invention.

  As shown in FIG. 5, in S <b> 1, the attribute detection means 2 c of the car navigation ECU 2 of the plurality of vehicles is based on the contact output of the child seat fixing anchor 11 and the contact output of the wheelchair fixing anchor 12. It is detected whether it is a physically handicapped person, a traffic weak person including an elderly person, or a traffic weak person including an infant, and proceeds to S2.

  In S2, the facility information detection means 2d of the car navigation ECU 2 detects the facility information relating to the facility used by the vehicle, that is, the facility name and location, from the parking position of the vehicle searched by the search means 2a and the map information for search. Proceed to S3.

  In S3, the communication unit 2e of the car navigation ECU 2 creates transmission data including the facility information detected by the facility information detection unit 2d corresponding to the attribute detected by the attribute detection unit 2c, and the detection result of the attribute detection unit 2c of S1. If it is determined that the wheelchair is mounted based on the above, proceed to S4, add the wheelchair mounting information to the transmission data, proceed to S5, and if it is not determined in S3 that the wheelchair is mounted Proceed directly to S5.

  If it is determined in S5 that the child seat is mounted based on the detection result of the attribute detection means 2c in S1, the process proceeds to S6, and the child seat mounting information is added to the transmission data, and the process proceeds to S7. If it is not determined that the child seat is mounted, the process proceeds to S7 as it is.

  In S7, the communication means 2e of the car navigation ECU 2 of the plurality of vehicles sends the transmission data including the facility information corresponding to the attribute created in S3 to S6 to the server 3 of the roadside center and the communication device 14 and the communication device 77. Send through.

  In S8, the statistical processing means 3a in the server 3 at the roadside center accumulates transmission data including facility information corresponding to a plurality of attributes transmitted from the car navigation ECUs 2 of the plurality of vehicles, performs statistical processing, and performs S9. In step S9, the statistical processing means 3a calculates the facility usage status corresponding to the attribute.

  Furthermore, in S10, the statistical processing means 3a of the server 3 creates reply data including the usage status of the facility corresponding to the attribute, and sends the reply data to the car navigation ECU 2 of the vehicle having the same attribute as the communication device 77 and the communication device. 14 to transmit.

  In S11, the acquisition unit 2f of the car navigation ECU 2 acquires the usage status of the facility corresponding to the attribute from the reply data. In S12, the presentation unit 2g of the car navigation ECU 2 displays the usage status of the facility corresponding to the attribute. 10 is displayed and presented to the passenger.

  According to the driving assistance device 1 of the present embodiment realized by these control contents, the following operational effects can be obtained. In other words, the usage status of the facility corresponding to the attribute of the occupant can be calculated by accumulating in the roadside center and statistical processing after detecting the facility information about the facility used by the actual vehicle. The use status of the facility according to the situation can be reflected on the actual use status of the occupant and can be updated as needed, and a facility that is more easily used by the occupant can be presented.

  In particular, as in the present embodiment, when the attribute is a traffic weak person, the usage status of the facility corresponding to the traffic weak person can be updated at any time by reflecting the actual usage situation of the weak traffic person. It is possible to present facilities that are more accessible to the vulnerable.

  Further, the attribute detection means 2c of the car navigation ECU 2 detects the attribute using a child seat or a wheelchair that is an occupant protection device mounted on the vehicle, so that the attribute can be detected by simpler means.

  In addition, based on the transmission data transmitted from the car navigation ECUs 2 of the plurality of vehicles, the statistical processing means 3a of the server 3 can calculate the facility usage status corresponding to the occupant attributes by statistical processing. In order to reflect the usage status of facilities according to attributes in the actual passenger usage status and update it as needed, the number of detection target parameters can be increased, and facilities that are easier for passengers to use can be presented more accurately. can do.

  Furthermore, as in the prior art, information providers such as public facilities such as parking lots and stores such as supermarkets enter the usage status of facilities corresponding to the attributes of passengers with an input device and update it as needed. Therefore, the increase in cost due to manpower required for input is prevented, and in particular in a depopulated area where the effect on cost cannot be expected, the situation where information provision becomes insufficient due to the convenience of the information provider is caused. Can also be prevented.

  In addition, the usage status of the facility corresponding to the occupant's attributes, that is, the number of usages can be calculated by detecting the facility information about the facility used by the actual vehicle, and then accumulating and statistically processing it at the roadside center. The occupants can provide more reliable information and can provide facilities that are more accessible to passengers than information provided by information providers such as public facilities such as parking lots and stores such as supermarkets. can do.

  Furthermore, in the driving assistance device 1 described above, the attribute is detected, the attribute and the facility information are linked and transmitted to the roadside center, and the transmitted data is accumulated and statistically processed to obtain the attribute of the occupant It is possible to automatically calculate the usage status of the facility corresponding to the vehicle, return the usage status to the vehicle, and present it to the occupant without the input operation of the occupant. It can be made easier to use for passengers unfamiliar with the operation.

  Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications, substitutions and additions can be made to the above-described embodiments without departing from the scope of the present invention. It can be performed.

  For example, when the attribute detection means 2c of the car navigation ECU 2 detects the attribute, an occupant protection device such as a child seat or a wheelchair is used. In addition to this, a mobile phone or an IC tag that can store personal information is used. It is good also as what you did.

  The roadside center server 3 can provide various services to the driver through the car navigation ECU 2 in addition to executing the control at the roadside center according to the present invention.

  For example, the e-mail address of the driver's mobile terminal is registered in the center server 3, and in addition to monitoring and notifying the driver of a third party's entry into the vehicle, engine start, etc., the driver When the mobile terminal accesses the center server 3 from the mobile terminal, it is also possible to remotely control the in-vehicle devices such as the engine ECU, brake ECU, and steering ECU of the vehicle based on the operation content of the mobile terminal to execute the anti-theft control.

  The present invention relates to a driving assistance device capable of presenting a facility that is more easily used by passengers, using an existing car navigation system and a network system, and adding a relatively light vehicle-like facility; Since a desired effect can be obtained by a relatively minor change in control, the present invention is useful when applied to various vehicles such as passenger cars, trucks, and buses.

It is a block diagram which shows one Embodiment of the driving assistance device which concerns on this invention. It is a block diagram which shows one Embodiment of the driving assistance device which concerns on this invention. It is a block diagram which shows one Embodiment of the driving assistance device which concerns on this invention. It is a block diagram which shows one Embodiment of the driving assistance device which concerns on this invention. It is a flowchart which shows the control content of one Embodiment of the driving assistance device which concerns on this invention.

Explanation of symbols

1 Driving assistance device 2 Car navigation ECU
2a Search means 2b Display means 2c Attribute detection means 2d Facility information detection means 2e Communication means 2f Acquisition means 2g Presentation means 3 Server 3a Statistical processing means 4 Base station 5 GPS antenna 6 IMU
7 Steering sensor 8 Receiver 9 Database 10 Display 11 Child seat fixing anchor 12 Wheelchair fixing anchor 13 ABS
14 Communication equipment

Claims (9)

  Attribute detection means for detecting the attribute of a vehicle occupant, facility information detection means for detecting facility information relating to the facility used by the vehicle, and the facility information corresponding to the attribute is transmitted to the statistical processing means of the roadside center. A communication means, and a statistical processing means for the roadside center, wherein the statistical processing means accumulates the facility information corresponding to the attribute received from the communication means and corresponds to the accumulated attribute. The driving assistance device, wherein the facility usage status corresponding to the attribute is calculated by statistically processing the facility information.   The driving assistance device according to claim 1, wherein the usage status is a usage count.   The driving assistance device according to claim 2, wherein the attribute is a traffic weak person.   The driving assistance device according to claim 3, wherein the traffic weak persons include disabled persons, elderly persons, and infants.   The driving assistance device according to claim 4, wherein the attribute detection unit detects the attribute using an occupant protection device mounted on the vehicle.   The driving assistance device according to claim 5, wherein the occupant protection device includes a child seat or a wheelchair.   The driving assistance device according to any one of claims 1 to 6, further comprising an acquisition unit configured to acquire a usage status of the facility corresponding to the attribute from the statistical processing unit via the communication unit. .   The driving assistance device according to claim 7, further comprising a presentation unit that presents a usage status of the facility corresponding to the attribute.   The driving assistance device according to claim 1, wherein a plurality of the vehicles exist with respect to the roadside center.

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