JP2015121842A - Driving support system, driving support method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for supporting comfortable driving suitable for a fellow passenger.SOLUTION: The driving support system comprises: a fellow passenger information acquisition unit which acquires fellow passenger information showing an attribute of a fellow passenger in a vehicle; a fellow passenger characteristic acquisition unit which acquires fellow passenger characteristic information showing a preference of the fellow passenger relating to driving from a database storing a plurality of pairs of fellow passenger information on the basis of the fellow passenger information; and an output unit which performs driving support on the basis of the fellow passenger characteristic information.

Description

  The present invention relates to a driving support system.

  2. Description of the Related Art Conventionally, a driving support device that can give a comfortable ride feeling to a passenger who has driving experience is known. In a certain prior art, the difference between the driving characteristics of a vehicle by a driver and the driving characteristics of a vehicle by a passenger who has driving experience is calculated and notified (Patent Document 1).

JP 2007-148917 A JP 2006-308507 A JP 2010-231776 A JP 2007-323598 A

  However, the above-described prior art has a problem that the driving characteristics of the passenger must be acquired in advance. Further, when a child, an adult who has no driving experience, or an elderly person who has stopped driving is a passenger, it is difficult to give the passenger a comfortable riding feeling in the above-described conventional technology. In addition, in the conventional driving support apparatus, it has been desired to simplify the operation, improve the usability, improve the processing speed, reduce the cost, and save resources.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

(1) According to one aspect of the present invention, a driving support system is provided. The driving support system includes a passenger information acquisition unit that acquires passenger information representing an attribute of a passenger of the vehicle, and a database that holds a plurality of sets of passenger information based on the passenger information. A riding characteristic acquisition unit that acquires the riding characteristic information indicating the driving preference of the driver, and an output unit that performs driving assistance based on the riding characteristic information. According to this type of driving support system, it is possible to support comfortable driving according to the passenger regardless of whether or not driving experience is present.

(2) In the driving support system of the above aspect, a driving information generating unit that receives an input indicating that there is no passenger and generates driving information indicating a driving preference of the driver during driving of the driver; A square characteristic generation unit that generates the square characteristic information based on the driving information. According to the driving support system of this aspect, it is possible to support comfortable driving in accordance with the passengers while taking into account the driving information of the passengers.

(3) In the driving support system of the above aspect, the fellow passenger information acquisition unit may receive the fellow passenger information by user input. According to this type of driving support system, it is possible to support a more comfortable driving that suits the passenger.

(4) In the driving support system of the above aspect, the passenger information may include at least one of age information and gender information. According to this type of driving support system, it is possible to support a more comfortable driving that suits the passenger.

  The present invention can be realized in various modes other than the driving support system. For example, the present invention can be realized in the form of a driving support device, a driving support method, a computer program for realizing the method, a non-temporary recording medium recording the computer program, or the like.

The figure for demonstrating the structure of the driving assistance system 10 as one Embodiment of this invention. 5 is a flowchart for explaining a driving support process executed by the driving support system. An example of an input screen of passenger information 232. An example of the riding characteristic database 56 stored in the hard disk of the server 50. FIG. 3 is an image diagram illustrating a state where driving assistance is performed in the vehicle 30. An example of the input screen of personal information 231. The figure for demonstrating the structure of the driving assistance system 10b as 2nd Embodiment. The flowchart for demonstrating the driving assistance process performed by the driving assistance system 10b as 2nd Embodiment. An example of the riding characteristic database 56 stored in the hard disk of the server 50. The image figure which shows the state in which the driving assistance is performed in the smart phone 20b.

A. First embodiment:
A1. System configuration:
FIG. 1 is a diagram for explaining a configuration of a driving support system 10 as an embodiment of the present invention. The driving support system 10 includes a smartphone 20 as a mobile terminal, a server 50, and a vehicle 30. The smartphone 20 and the server 50 are connected to each other via the Internet INT. The smartphone 20 can be connected to the Internet INT wirelessly via the communication carrier BS. The communication carrier BS includes a transmission / reception antenna, a radio base station, and an exchange station.

  The smartphone 20 includes a wireless LAN communication unit 201, a mobile communication network communication unit 202, a voice communication unit 203, a touch panel 204, a USB interface 205, and a terminal control unit 200.

  The mobile communication network communication unit 202 is a circuit for performing data communication and voice communication with the communication carrier BS by, for example, a mobile communication system compliant with 3G / HSPA.

  The wireless LAN communication unit 201 is a circuit for performing wireless communication with an external device using an infrastructure or an ad hoc mode based on a wireless LAN standard (IEEE802.11 series).

  The voice communication unit 203 includes a speaker for outputting voice, a microphone for inputting voice, a circuit for driving these, and the like. The smartphone 20 also operates as a telephone by including the mobile communication network communication unit 202 and the voice communication unit 203.

  The touch panel 204 is a pointing device that acquires coordinates based on a contact position by a user's finger or a dedicated pen, and receives data input by a contact operation. Various images are displayed in the area where the image on the touch panel 204 can be displayed.

  The USB interface 205 is an interface for connecting the smartphone 20 and the vehicle 30. The USB interface 205 can be connected to an external device other than the vehicle 30 (for example, a computer). Note that Bluetooth (registered trademark) may be used as an interface for connecting the smartphone 20 and the vehicle 30.

  The terminal control unit 200 controls each unit of the smartphone 20. The terminal control unit 200 includes a CPU 210, a RAM 220, and a flash memory 230. CPU210 controls each part of the smart phone 20 by expand | deploying and executing the control program memorize | stored in ROM (not shown) on RAM220. The flash memory 230 stores personal information 231 regarding the age and sex of the user of the smartphone 20 and passenger information 232 (described later).

  Next, the server 50 will be described. The server 50 includes devices such as a CPU, ROM, RAM, and hard disk (not shown) inside. The server 50 functions as the communication unit 52 and the control unit 54 by expanding and executing the control program stored in the ROM on the RAM. A hard disk characteristic database 56 (hereinafter also referred to as “strip power characteristic DB 56”) is stored in the hard disk as the server-side storage unit of the present application. The ride characteristics database 56 will be described in detail later.

  The control unit 54 controls the overall operation of the server 50. The communication unit 52 communicates with the smartphone 20 via the Internet INT under the control of the control unit 54. The passenger characteristics database 56 is provided for each passenger information 232 for identifying passengers of the vehicle 30. The riding characteristics database 56 is a database that holds a plurality of sets of passenger information, and is a table that represents the riding characteristics information associated with the passenger information 232. The riding characteristic information is information that represents the driving preference of the passenger, and is information for operating the driving support device 302. When the driving support process described later is executed, the control unit 54 receives from the riding characteristics database 56 when the acquisition request for the riding characteristics information corresponding to the vehicle type information 331 and the passenger information 232 is received from the smartphone 20. The passenger characteristics information corresponding to the vehicle type information 331 and the passenger information 232 is read out and transmitted to the smartphone 20 via the communication unit 52.

  Next, the vehicle 30 will be described. The vehicle 30 includes a vehicle-side communication unit 301, a driving support device 302, and a vehicle control unit 300.

  The vehicle control unit 300 includes a CPU 310, a RAM 320, and a ROM 330. The CPU 310 controls each part of the vehicle 30 by developing the control program stored in the ROM 330 in the RAM 320 and executing it. The ROM 330 stores vehicle type information 331 for identifying the vehicle type of the vehicle 30.

  The vehicle-side communication unit 301 includes a USB interface 303, and performs data communication with the smartphone 20 through the USB interface 303.

  The driving support device 302 is a device for supporting a user who drives the vehicle 30. In the present embodiment, driving assistance executed by the driving assistance device 302 includes, for example, collision prevention, sudden braking prevention, sudden acceleration prevention, follow-up running, voice guidance, warning, and the like. Specifically, the driving support device 302 restricts the degree of opening of the accelerator to prevent sudden acceleration, changes the engine speed, and information on radars and in-vehicle cameras provided in the vehicle 30. It is used to support the user's driving by following a vehicle traveling ahead while maintaining a certain inter-vehicle distance or controlling the roll and speed during cornering. Note that the type of driving assistance performed by the driving assistance device 302 differs depending on the vehicle type of the vehicle 30. The driving support device 302 executes the driving support by being controlled by the CPU 310 of the vehicle control unit 300 based on the riding characteristic information acquired by the vehicle side acquisition unit 311.

A2. Driving support processing:
FIG. 2 is a flowchart for explaining a driving support process executed by the driving support system 10. This process is a process for determining the driving assistance applied to the user of the smartphone 20. In the present embodiment, the process is automatically started when the smartphone 20 is connected to the vehicle 30 via the USB interfaces 205 and 303. Note that the driving support process may be started, for example, by the user specifying and executing a program stored in the ROM of the smartphone 20.

  When the driving support process is started, first, the CPU 210 of the smartphone 20 displays a screen for inputting whether or not there is a passenger on the touch panel 204, and prompts the user to input whether or not the passenger is present (step S5).

  If the passenger is input by the user via the touch panel 204 (step S5: Yes), the CPU 210 of the smartphone 20 displays the input screen of the passenger information 232 on the touch panel 204, and displays the passenger information to the user. The user is prompted to input 232 (step S20).

  FIG. 3 is an example of an input screen for passenger information 232. Passenger information 232 is information representing the attributes of the passenger, for example, information on name, age, sex, driving calendar, license information, etc., as shown in FIG. In the present embodiment, the name of the passenger included in the passenger information 232 is “X”, the age is 45 years old, the sex is male, the driving calendar is 20 years, and the license is a gold license. The user of the smartphone 20 inputs passenger information as shown in FIG. 3 via the touch panel 204. The CPU 210 of the smartphone 20 writes the input passenger information into the flash memory 230. The “touch panel 204” in the present embodiment corresponds to a “passenger information acquisition unit” in a means for solving the problem.

  When the passenger information 232 is input (step S <b> 20), the CPU 210 of the smartphone 20 requests the vehicle 30 to transmit the vehicle type information 331 as a process of the terminal side acquisition unit 211, and the vehicle 30 transmits the vehicle side transmission unit 312. The vehicle type information 331 of the vehicle 30 transmitted as the process is acquired (step S40). The vehicle type information 331 is stored in the ROM 330 of the vehicle control unit 300 of the vehicle 30. In the present embodiment, the vehicle type information is “vehicle type C”.

  When the vehicle type information 331 is acquired (step S40), the CPU 210 of the smartphone 20 transmits the acquired vehicle type information 331 and the input passenger information 232 to the server 50 as processing of the terminal side transmission unit 212 (step S40). S50). CPU210 of the smart phone 20 acquires the riding characteristics information linked | related with the vehicle type information 331 and the passenger information 232 from the riding characteristics database 56 of the server 50 as a process of the terminal side acquisition part 211 (step S60). The acquired riding characteristic information is stored in the flash memory 230 of the smartphone 20. Note that the “CPU 210” in the present embodiment corresponds to a “strip characteristics acquisition unit” in a means for solving the problem.

  FIG. 4 is an example of the riding characteristic database 56 stored in the hard disk of the server 50. In the riding characteristics database 56, riding characteristics information associated with the passenger information 232 is shown in advance for each vehicle type. In this embodiment, the vehicle type information 331 is “vehicle type C”, the passenger name included in the passenger information 232 is “X”, the age is 45 years old, the sex is male, the driving calendar is 20 years, and the license is gold. It is a license. For this reason, according to the request | requirement of the smart phone 20, the riding characteristics information (part shown by hatching in FIG. 4) corresponding to the passenger information 232 is acquired from the riding characteristics database 56 of the vehicle type C. Note that the riding characteristic information is generated according to the type of a vehicle type that has never been driven.

  When the riding characteristic information is acquired, the CPU 210 of the smartphone 20 transmits the acquired riding characteristic information to the vehicle 30 as processing of the terminal side transmission unit 212 (step S80). When the CPU 310 of the vehicle 30 acquires the riding characteristic information as the processing of the vehicle side acquisition unit 311, the driving assistance device 302 performs driving assistance based on the acquired riding characteristic information (step S <b> 90). As described above, a series of driving support processing is completed. The “driving support device 302” in the present embodiment corresponds to an “output unit” in a means for solving the problem.

  FIG. 5 is an image diagram illustrating a state in which driving assistance is performed in the vehicle 30. By executing steps S <b> 10 to S <b> 90 described above, the vehicle 30 travels while executing a driving support process corresponding to the vehicle type information 331 and the passenger information 232 of the vehicle 30. In the vehicle 30 shown in FIG. 5, comfortable driving for passengers is supported by voice warning and relaxation of acceleration according to the amount of accelerator depression and speed.

  When the driving support process as described above is performed, the passenger information 232 is stored in the flash memory 230 of the smartphone 20.

  On the other hand, when there is no passenger by the user, when input is made via the touch panel 204 (step S5: No), the CPU 210 of the smartphone 20 checks whether or not the personal information 231 is stored in the flash memory 230 ( Step S10).

  When the personal information 231 is not stored in the flash memory 230 (step S10: No), the CPU 210 of the smartphone 20 displays the input screen of the personal information 231 on the touch panel 204, and inputs the personal information 231 to the user. Prompt (step S15).

  FIG. 6 is an example of an input screen for personal information 231. The personal information 231 is information representing the user of the smartphone 20, and is information on a name, age, sex, driving calendar, license information, etc., as shown in FIG. The user of the smartphone 20 inputs personal information 231 as shown in FIG. In the present embodiment, the name of the driver included in the personal information 231 is “Y”, the age is 42 years old, the gender is female, the driving calendar is 15 years, and the license is a gold license. The CPU 210 of the smartphone 20 writes the input personal information 231 in the flash memory 230.

  When the personal information 231 is input (step S15) or when the personal information 231 is already stored in the flash memory 230 (step S10: Yes), the CPU 210 of the smartphone 20 transmits the personal information 231 to the vehicle 30. The vehicle control unit 300 that has received the personal information 231 transmits the personal information 231 to the driving support device 302. The driving support device 302 associates the personal information 231 with the personal information 231, and then, while driving the driver, Driving information representing driving preference is generated (step S18). Note that the “driving support device 302” in the present embodiment corresponds to a “driving information generation unit” in a means for solving the problem.

  Specifically, the driving support device 302 determines (i) the degree of acceleration / deceleration in driving by the driver, (ii) acceleration / deceleration timing, (iii) roll and speed at cornering, and (iv) difference in overtaking. Acceleration, (v) lane change frequency and time, (vi) turn signal timing, (vii) inter-vehicle distance, (viii) parking direction (park from the front of the vehicle or park from the rear of the vehicle) )) Is digitized and used as driving information for the driver.

  The driving information is accumulated in the riding characteristic database 56 of the server 50 via the smartphone 20. The control unit 54 of the server 50 generates the riding characteristic information based on the stored personal information and driving information. By doing so, the riding characteristic information can be used when the driver becomes a passenger. In addition, when there is no passenger, by acquiring driving information, the characteristics of the driver can be collected more accurately. Note that the “control unit 54” in the present embodiment corresponds to a “striping characteristic generation unit” in a means for solving the problem.

B. Second embodiment:
B1. System configuration:
FIG. 7 is a diagram for explaining the configuration of the driving support system 10b according to the second embodiment. Compared with the first embodiment, the driving support system 10b according to the second embodiment is (i) the point that the smartphone 20b performs the role of the output unit that performs driving support, and (ii) the smartphone 20b includes the GPS receiver 206. The difference is that (iii) the server 50b includes a map database 58 (hereinafter also referred to as “map DB 58”), but the rest is the same.

  The GPS receiver 206 measures the current position (longitude and latitude) of the smartphone 20b (user) based on radio waves received from artificial satellites constituting a GPS (Global Positioning System / Global Positioning System).

  The map database 58 stores map data for displaying a map on the touch panel 204 of the smartphone 20b and network data for route guidance. The network data includes data representing the connection state of the roadway with links and nodes.

  When receiving a route search request from the smartphone 20b via the communication unit 52, the control unit 54 of the server 50b performs a route search using the network data stored in the map database 58. Then, route data that is the route result is transmitted to the smartphone 20b. Moreover, the control part 54 reads map data from the map database 58, and transmits to the smart phone 20b, when the acquisition request of map data is received from the smart phone 20b.

B2. Driving support processing:
FIG. 8 is a flowchart for explaining a driving support process executed by the driving support system 10b according to the second embodiment. The first embodiment and the second embodiment are the same except for “processing after step S20” and “step S10: processing after Yes or step S15”.

In the second embodiment, after receiving passenger information input in step S20, the CPU 210 of the smartphone 20b receives input of search conditions including a departure place and a destination from the user via the touch panel 204 (step S42). .

  When receiving the input of the search condition, the CPU 210 transmits the acquired passenger information 232 and the search condition to the server 50b as processing of the terminal side transmission unit 212 (step S52). The CPU 210 of the smartphone 20b performs, as processing by the terminal-side acquisition unit 211, the riding characteristic information linked from the riding characteristic database 56 of the server 50 to the passenger information 232 and route data representing the route searched from the map database 58. Obtain (step S62). When the route data is acquired, the CPU 210 acquires the current position from the GPS receiver 206. When the current position cannot be acquired from the GPS receiver 206, the wireless LAN communication unit 201 measures the current position by measuring the strength of radio waves emitted from a wireless LAN access point or a telephone base station in the building. Is possible.

  FIG. 9 is an example of the riding characteristics database 56 stored in the hard disk of the server 50. In the riding characteristics database 56, riding characteristics information corresponding to the passenger information 232 is shown in advance. In the present embodiment, the name of the passenger included in the passenger information 232 is “X”, the age is 45 years old, the sex is male, the driving calendar is 20 years, and the license is a gold license. For this reason, according to the request | requirement of the smart phone 20b, the boarding characteristic information (part shown by hatching in FIG. 4) corresponding to the passenger information 232 is acquired (step S82). The riding characteristics information stored in the riding characteristics database 56 is information related to the content of driving assistance executed by the smartphone 20b so that a comfortable driving is possible for the passenger. In the present embodiment, driving assistance executed by the smartphone 20b includes, for example, voice guidance, a warning performed by light or vibration, display on the touch panel 204, and the like.

  When the riding characteristic information is acquired, the CPU 210 of the smartphone 20b performs driving support based on the acquired riding characteristic information, route data, and the current position (step S92). As described above, a series of driving support processing is completed.

  FIG. 10 is an image diagram illustrating a state in which driving assistance is performed in the smartphone 20b. By executing the above-described steps, points to be noted on the route are shown, and recommended driving methods are displayed. In the present embodiment, driving assistance is performed by displaying on the touch panel 204, but notification by voice or vibration or notification may be performed. By doing so, it is possible to support comfortable driving for passengers without being involved in vehicle control. Note that the priority order of the output contents may be changed depending on the attribute of the route. By doing so, for example, when driving on a mountain road or the like, it is possible to give priority to assistance that makes driving less drunk than assistance that reflects the detailed characteristics of passengers.

  On the other hand, when the personal information 231 is input (step S15 (see FIG. 8)) or when the personal information 231 is already stored in the flash memory 230 (step S10: Yes), the CPU 210 of the smartphone 20b goes to the vehicle 30b. Request driving information representing the driving preference of the driver. Thereby, the vehicle control part 300 produces | generates driving information during a driver | operator's driving | operation (step S19). The driving information generated by the vehicle control unit 300 is transmitted to the smartphone 20b, and the CPU 210 of the smartphone 20b associates the personal information 231 with the driving information and transmits it to the server 50b. In addition, the “vehicle control unit 300” in the present embodiment corresponds to a “driving information generation unit” in a means for solving the problem. By doing so, the riding characteristic information can be used when the driver becomes a passenger. In addition, when there is no passenger, by acquiring driving information, the characteristics of the driver can be collected more accurately.

C. Variation:
In addition, this invention is not restricted to said embodiment, In the range which does not deviate from the summary, it can be implemented in a various aspect, For example, the following deformation | transformation is also possible.

C1. Modification 1:
In the first embodiment, driving support is performed by driving control of the vehicle, and in the second embodiment, driving support is performed by output from a smartphone without performing driving control of the vehicle. However, the present invention is not limited to this. The present invention may perform both vehicle control and smartphone output for driving assistance. For example, the driving support method may be selected based on the degree of linkage between the vehicle and the smartphone. In addition, when correcting the direction of sharpening the control in the driving control of the vehicle (for example, the control for increasing the response speed of the accelerator or the brake), the information is output by the smartphone and the control is corrected to the direction of making the control mild (For example, control for slowing down the response speed of an accelerator or a brake) may not output information by a smartphone. That is, the presence or absence of output from the smartphone may be controlled based on the type of control to the vehicle.

C2. Modification 2:
In the second embodiment, the driving support is performed by an output regarding a certain point on the route. However, the present invention is not limited to this. As a driving assistance method, based on the characteristics of the passengers, habits specific to the passengers may be extracted and the information may be output. For example, the passenger usually performs parking from the rear, but when going to a shopping destination such as a supermarket, when parking from the front, when the destination is a shopping destination, park the vehicle from the front. You may make it output.

C3. Modification 3:
In the present embodiment, information on a specific person is used as passenger information. However, the present invention is not limited to this. It is also possible to collect information on the riding characteristics that categorizes other information such as age and gender, rather than a specific person, and use the information as the riding characteristics information. By doing in this way, the tendency of the passenger by the characteristic for every age, the characteristic for every sex, the characteristic for every driving calendar, etc. can be grasped | ascertained, for example. For this reason, even when a person who has not acquired the riding characteristic information is put on the vehicle, it is possible to provide assistance such as driving close to driving that the person feels more comfortable.

  Moreover, you may perform the process which inputs a passenger's comment after completion | finish of a driving | operation. For example, you may perform the process which inputs the impression whether it gets drunk by driving after carrying a child. By doing this, collect information on what kind of driving is preferable for passengers who do not drive, and provide support that makes driving closer to driving that person feels more comfortable Can do.

C4. Modification 4:
In the present embodiment, name, age, sex, driving calendar, and license information are used as the passenger information 232. However, the present invention is not limited to this. The passenger information 232 may be information such as age information and gender information that can identify the group to which the passenger belongs.

C5. Modification 5:
In the driving support system of the present embodiment, a smartphone is used. However, the present invention is not limited to this. Instead of a smartphone, for example, a general mobile phone, a notebook computer, a tablet terminal, a personal digital assistant (PDA), a portable music player, a portable game machine, or the like may be used in the driving support system of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Driving assistance system 10b ... Driving assistance system 20 ... Smartphone 20b ... Smartphone 30 ... Vehicle 30b ... Vehicle 50 ... Server 50b ... Server 52 ... Communication part 54 ... Control part 56 ... Riding characteristic database 58 ... Map database 200 ... Terminal control part 202 ... Mobile communication network communication unit 203 ... Voice communication unit 204 ... Touch panel 210 ... CPU
DESCRIPTION OF SYMBOLS 211 ... Terminal side acquisition part 212 ... Terminal side transmission part 230 ... Flash memory 231 ... Personal information 232 ... Passenger information 300 ... Vehicle control part 301 ... Vehicle side communication part 302 ... Driving assistance device 310 ... CPU
311 ... Vehicle side acquisition unit 312 ... Vehicle side transmission unit 331 ... Vehicle type information C ... Vehicle type BS ... Communication carrier INT ... Internet

Claims (5)

A passenger information acquisition unit which is a driving support system and acquires passenger information representing attributes of a passenger of the vehicle;
From a database holding a plurality of sets of passenger information, based on the passenger information, a passenger characteristics acquisition unit that acquires the passenger characteristics information representing the driving preference of the passengers;
A driving support system comprising: an output unit that performs driving support based on the riding characteristic information. The driving support system according to claim 1, further comprising:
A driving information generation unit that receives an input indicating that there is no passenger and generates driving information indicating a driving preference of the driver during driving of the driver;
A driving assistance system comprising: a riding characteristic generation unit that generates the riding characteristic information based on the driving information. The driving support system according to claim 1 or 2,
The said passenger information acquisition part is a driving assistance system which receives the said passenger information by a user's input. The driving support system according to any one of claims 1 to 3,
The passenger information is a driving support system including at least one of age information and gender information. A driving support method for acquiring passenger information representing attributes of a passenger of a vehicle;
From the database holding a plurality of sets of passenger information, obtaining the passenger characteristics information representing the passenger's driving preference based on the passenger information;
And a driving assistance system based on the riding characteristic information.

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