JP2017182418A - Driving assisting device and driving support system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving assisting device and a driving support system capable of acquiring information such as a dangerous point notification by much simpler method and capable of providing a highly reliable driving support service.SOLUTION: A driving assisting device includes: voice recognition means for recognizing a voice of a crew member; traffic environment acquisition means for acquiring positional information of a vehicle; hazardous event detection means for detecting a hazardous event relating to words based on the hazardous event associated word database in which hazardous event associated words and a hazardous event are in association with each other when the words included in the voice of the recognized crew member correspond to any of the predetermined hazardous event associated words; and hazardous event storage means for storing the detected hazardous event in a hazardous event database associated with the hazardous event and the positional information in association with the acquired positional information when the hazardous event is detected.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a driving support device and a driving support system, and more particularly to a driving support device and a driving support system that handle information on a dangerous point.

  2. Description of the Related Art Conventionally, a driving support system for notifying a driver of driving support information for alerting a dangerous point or a dangerous object on a road has been developed. As such a driving support system, a point where an accident has actually occurred or a situation in which a near accident occurs (hereinafter referred to as “near incident”) is created as a dangerous point database and registered in the database. When approaching a danger point, what notifies the driver | operator of a vehicle that it is approaching a danger point is known.

  For example, in Patent Document 1, by driving a probe car equipped with a sensor, a camera, and the like that collect information by field inspection, driving support information including the above-mentioned dangerous points is accumulated in a database, and driving support information is stored from the server. A driving support system for delivering a vehicle to a vehicle is disclosed.

JP2013-114365A

  However, in order to obtain such information, it is necessary to collect the fact that accidents and near-misses have actually occurred by running a probe car, etc., which requires a lot of time and money. There was a problem that it took.

  The present invention has been made to solve such a problem, and can provide information such as danger point notification by a simpler method and provide a reliable driving support service. It is an object of the present invention to provide a driving support device and a driving support system that can be used.

  The above problem is solved by the present invention having the following features. That is, the driving support device as one aspect of the present invention includes a voice recognition unit that recognizes a passenger's voice, a traffic environment acquisition unit that acquires vehicle position information, and a word included in the recognized passenger's voice. Danger event detection that detects a dangerous event related to a word based on a dangerous event related word database in which the dangerous event related word and the dangerous event are associated when one of the predetermined dangerous event related words is met Means and risk event storage means for associating the detected dangerous event with the acquired positional information when the dangerous event is detected and storing the dangerous event and the positional information in a dangerous event database associated with the dangerous event. , A driving support device.

  According to the present invention configured as described above, the word (word or phrase) included in the voice acquired from the occupant (for example, the driver) corresponds to the predetermined dangerous event-related word by the dangerous event detection means. By determining whether or not, a dangerous event experienced by the occupant can be detected based on the utterance content of the occupant. Further, the detected dangerous event can be stored in the dangerous event database together with the position information where the dangerous event has occurred by the dangerous event storage means.

  As one aspect of the present invention, the traffic environment acquisition means detects an obstacle present around the vehicle, and the dangerous event detection means has a word included in the recognized occupant's voice predetermined. If any of the dangerous event-related words falls within the predetermined area around the vehicle, a dangerous event is detected based on the dangerous event-related word database.

  According to the present invention configured as described above, when the word included in the voice acquired from the occupant corresponds to the predetermined dangerous event-related word by the dangerous event detection means, the word is detected by another vehicle or walking. It is possible to detect only a dangerous event caused by an occupant due to an obstacle such as a passenger. As a result, the risk event-related word database can be generated by analyzing the factor of the risk event, so that a more appropriate driving support service can be provided.

  As one aspect of the present invention, when the position information acquired by the traffic environment acquisition means satisfies a predetermined condition with the position information stored in the danger event database, the risk associated with the position information satisfying the predetermined condition The vehicle further includes driving support means for providing a driving support service corresponding to the event to the occupant.

  According to the present invention configured as described above, when the position of the host vehicle satisfies a predetermined condition and one of a plurality of positions stored in the dangerous event database by the driving support means (for example, two target objects) When the position is within a predetermined distance), a driving support service corresponding to the dangerous event associated with the one position can be provided to the occupant.

  As one aspect of the present invention, the traffic environment acquisition unit acquires time information of the vehicle, and the dangerous event storage unit acquires the detected dangerous event when the dangerous event is detected. Further stored in the dangerous event database in association with the time information, the driving support means, based on the acquired time information and the time information associated with the position information satisfying the predetermined condition, the predetermined condition The driving assistance service corresponding to the dangerous event associated with the position information satisfying the condition is provided to the occupant.

  According to the present invention configured as described above, when the position of the host vehicle satisfies a predetermined condition and one of the plurality of positions stored in the database by the driving support means, The driving support service can be provided to the occupant based on whether the time information associated with the associated dangerous event and the time information during the current traveling are in the same time zone. As a result, driving support services can be provided by selecting according to time information, so it is possible to provide more appropriate driving support services and eliminate the annoyance that passengers may feel. Is possible.

  The driving support system as one aspect of the present invention is a driving support system including each electronic device mounted on one or a plurality of vehicles and a server device connected to be communicable with each electronic device. Voice recognition means for recognizing the voice of the occupant of each vehicle, traffic environment acquisition means for acquiring the position information of each vehicle, and words included in the recognized voice of the occupant are predetermined risk event related words. In any case, based on a dangerous event-related word database in which a dangerous event-related word and a dangerous event are associated, a dangerous event detection means for detecting a dangerous event related to the word, and the detected dangerous event Is associated with the acquired positional information when the dangerous event of the vehicle in which the dangerous event is detected is associated with the dangerous event and the positional information. A hazardous event storage means for storing the insurance event database, each unit of the a respective electronic device or the driving support system where the server provided.

  As one aspect of the present invention, the traffic environment acquisition means detects obstacles existing around each vehicle, and the dangerous event detection means has predetermined words included in the recognized occupant's voice. If the detected obstacle exists in a predetermined area around the vehicle in the case where it falls under any of the dangerous event related words, the danger is determined based on the dangerous event related word database. Detect events.

  As one aspect of the present invention, each electronic device or the server satisfies the predetermined condition when the acquired position information of one vehicle satisfies the predetermined condition with the position information stored in the dangerous event database. The vehicle further includes driving support means for providing a driving support service corresponding to the dangerous event associated with the position information to the passenger of the one vehicle.

  As one aspect of the present invention, the traffic environment acquisition unit acquires time information of each vehicle, and the dangerous event storage unit acquires the detected dangerous event when the dangerous event is detected. The driving support means stores the risk information in association with the acquired time information, and the driving support means is based on the acquired time information of one vehicle and the time information associated with the position information satisfying the predetermined condition. Thus, the driving support service corresponding to the dangerous event associated with the position information satisfying the predetermined condition is provided to the passenger of the one vehicle.

  According to the present invention configured as described above, the technology realized by the driving support device is configured to include each electronic device mounted on each vehicle and a server device connected to be communicable with each electronic device. It can be realized by a driving support system. Thereby, since the dangerous event database can include data of each vehicle included in the driving support system, it becomes possible to provide a more appropriate driving support service based on more data.

  As one aspect of the present invention, the traffic environment acquisition unit acquires vehicle information of each vehicle, and the risk event storage unit determines the detected risk event as the risk of the vehicle in which the risk event is detected. The risk information is stored in the dangerous event database in association with the acquired vehicle information when an event is detected, and the driving support means is a position satisfying the acquired vehicle information and the predetermined condition. Based on the vehicle information associated with the information, a driving support service corresponding to the dangerous event associated with the position information satisfying the predetermined condition is provided to the passenger of the one vehicle.

  According to the present invention configured as described above, when the position of one vehicle satisfies a predetermined condition with one of the plurality of positions stored in the database by the driving support means, the one position The driving support service can be provided to the occupant based on whether the vehicle information associated with the dangerous event associated with the vehicle information and the vehicle information regarding the one vehicle are the same or similar. As a result, the driving support service can be provided by selecting according to the information of the vehicle, so it becomes possible to provide a more appropriate driving support service and eliminates the troublesomeness that the passenger may feel. It becomes possible.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to acquire information, such as danger point notification, by a simpler method, a highly reliable driving support service can be provided.

1 is a schematic configuration diagram of a driving support apparatus according to an embodiment of the present invention. It is a functional block diagram of the driving assistance device by the embodiment of the present invention. It is a figure which shows the dangerous event related word database by embodiment of this invention. It is a figure which shows the dangerous event related word database by embodiment of this invention. It is a figure which shows the dangerous event database by embodiment of this invention. 5 is a flowchart illustrating an operation of generating a dangerous event database of the driving support device according to the embodiment of the present invention. 3 is a flowchart illustrating an operation of providing a driving support service of a driving support device according to an embodiment of the present invention to a driver. It is a schematic block diagram of the driving assistance system by other embodiment of this invention.

  Hereinafter, a driving support device and a driving support system according to embodiments of the present invention will be described with reference to the accompanying drawings. The operation support apparatus will be described first, and then the driving support system connected to the network will be described. In addition, the “driver” in the embodiment of the present invention can be applied to “occupants” other than the driver, except for the description related to driving state acquisition and biological information acquisition.

  FIG. 1 is a schematic configuration diagram of a driving support device 1 mounted on a vehicle (own vehicle) according to an embodiment of the present invention. As shown in FIG. 1, the driving support device 1 includes a control unit 10, a voice input unit 11, an output unit 12, and a position sensor 13, and these components are electrically connected. The driving support device 1 can share the above-described components with other devices or other systems.

  The control unit 10 includes a processing unit 10a, a storage unit 10b, and an interface unit 10c. For example, the control unit 10 is configured by an ECU (Electronic Control Unit) in the vehicle.

  The processing unit 10a includes, for example, a processor, and performs various processes by executing a program stored in the storage unit 10b. The storage unit 10b includes a non-volatile memory such as a flash memory and a volatile memory such as SRAM and DRAM. The interface unit 10c is interposed between the processing unit 10a and other devices, and relays data exchange between them. The storage unit 10b can store data for various databases. Various databases are realized by the operation of the processing unit 10a.

The voice input unit 11 corresponds to a microphone to which voice is input. Typically, the voice input unit 11
The voice corresponding to the utterance content of the driver is input.

  The output unit 12 is electrically connected to the control unit 10 and includes a speaker that outputs sound or a display that outputs images. The driving support service can be provided via the output unit 12.

  The position sensor 13 includes a GPS receiver that acquires position information of the own vehicle by radio waves transmitted from GPS satellites, and a self-contained navigation sensor for detecting the current position and direction of the own vehicle and applying a self-contained navigation system. . The self-contained navigation sensor includes, for example, a vehicle speed sensor that acquires information corresponding to the rotational speed of the wheels included in the host vehicle and a gyro sensor that acquires information corresponding to angular acceleration acting on the host vehicle.

  The driving assistance device 1 can include a navigation system (not shown). In this case, the system functions as a position sensor by using the above-described GPS or a self-contained navigation sensor. The output unit of the system can be shared with the output unit 12.

  FIG. 2 shows an example of a functional block diagram of the driving support device 1 according to the embodiment of the present invention. Voice recognition means 21, traffic environment acquisition means 22, storage means 23, dangerous event detection means 24, and driving support means 25 are provided. In addition, since these functions are implement | achieved by each component shown in FIG. 1, the division | segmentation of a functional block is not limited above.

  The voice recognition means 21 has a function of acquiring voice data uttered by the driver via the voice input unit 11 and executing voice recognition processing. The speech recognition method can be arbitrarily applied as long as it is an existing speech recognition technology. When the speech recognition process is executed, character string data of a word or a phrase is acquired as the recognition information. In this specification, “word” is used as a term that collectively refers to words and phrases. The voice-recognized word data is stored in the storage unit 10b or the like until it is processed at least by the dangerous event detection means 24.

  The traffic environment acquisition means 22 has a function of acquiring a traffic environment related to the host vehicle. For example, the traffic environment acquisition means 22 uses the GPS receiver included in the position sensor 13 and data acquired from the self-contained navigation sensor in combination to determine the current position of the host vehicle (for example, as position information represented by coordinates of latitude and longitude). get. The traffic environment acquisition means 22 can further acquire the traveling direction, speed, travel distance, time information, and the like.

  The memory | storage means 23 has a function which memorize | stores various data in the memory | storage part 10b, and has a function which updates the content of various databases. FIG. 3 shows an example of a database included in the driving support apparatus 1 according to the embodiment of the present invention. The database includes a risk event related word database 31, a map database 32, and a risk event database 33.

  The dangerous event related word database 31 is a database in which a predetermined dangerous event related word and a specific dangerous event related to the word are associated with each other, and is generated in advance. Here, a dangerous event is an event that causes the driver to experience a near-miss, such as a sudden jump-out that is likely to collide or come into contact with another vehicle or a pedestrian, or because it is a complex road, For example, it is likely to come into contact with another vehicle due to a selection error. The dangerous event may be an event including an accident that has actually occurred.

  The inventor noticed that a driver who experiences a dangerous event murmurs (speaks) in a bag. Furthermore, the content of the driver's heel utterance includes a specific word, and the relationship between the specific word and the dangerous event is based on the conventional relationship between the brake and steering and the dangerous event. Also found close. Therefore, in the embodiment of the present invention, the dangerous event related word database 31 is used.

  An example of the dangerous event related word database 31 is shown in FIG. For example, the word “dangerous” is considered to be content that the driver speaks when it is likely to collide with or contact other vehicles or pedestrians. Associated and stored.

  The map database 32 is a database related to general map data including link data (road information) for identifying roads, node data (intersection information) for identifying intersections, facility data for identifying POIs such as facilities, and the like. It is. When the driving support device 1 includes a navigation system, a map database used in the navigation system may be used as the map database 32.

  The dangerous event database 33 is a database in which dangerous events are associated with position information. An example of the dangerous event database 33 is shown in FIG. Preferably, the location information of the hazardous event database 33 is linked on the map database 32. Further, the dangerous event database 33 may be a database that can further associate time information. The contents of the dangerous event database 33 may be integrated into the map database 32 and used as one database.

  The dangerous event detection unit 24 determines whether or not the word recognized by the voice recognition unit 21 corresponds to any of the dangerous event related words stored in the dangerous event related word database 31. Has a function of detecting a dangerous event associated with the speech-recognized word.

  The storage means 23 includes a dangerous event storage means 23a. When a dangerous event is detected by the dangerous event detection unit 24, the dangerous event storage unit 23a stores the detected dangerous event of the host vehicle acquired by the traffic environment acquisition unit 22 when the dangerous event is detected. It has a function of storing in the dangerous event database 33 in association with the position information. By adopting such a configuration, in the present embodiment, it is possible to generate / update the dangerous event database 33 in which the dangerous event and the position information are associated with each other based on the utterance content of the driver.

  When the position information of the host vehicle acquired by the traffic environment acquisition unit 22 satisfies a predetermined condition with any one of the position information stored in the dangerous event database 33 (for example, two pieces of position information). In the risk event database 33, the driver has a function of providing a driving support service corresponding to the risk event associated with the position information that satisfies the predetermined condition to the driver.

  For example, in the case where the storage unit 10b stores the dangerous event database 33 shown in FIG. 4B, consider a case where the position information of the host vehicle acquired by the traffic environment acquisition unit 22 is (X, Y). In this case, when (X1, Y1) and (X, Y), which are one of the positional information on the dangerous event database 33, satisfy a predetermined condition, the driving support means 25 sets (X1, Y1) to The driver is provided with a driving support service corresponding to the associated dangerous event “collision with other vehicle, pedestrian, contact”.

  Further, for example, when the position information (X, Y) of the host vehicle satisfies the two position information (X2, Y2) and (X3, Y3) stored in the dangerous event database 33, the driving support means 25 , (X2, Y2) and (X3, Y3), a driving support service corresponding to each dangerous event is provided to the driver. However, in the risk event database 33, when the position information and the risk event are associated with each weighted data, for example, in the above example, the data string (X2, Y2) is weighted more than the data string (X3, Y3). In such a case, the driving support means 25 can provide the driver with a driving support service corresponding only to the dangerous event associated with (X2, Y2).

  As one example, the predetermined condition is that the position information (X, Y) of the own vehicle acquired by the traffic environment acquisition unit 22 and the position information (for example, (( X1, Y1)) is within a predetermined distance. The predetermined distance can be set to 30 m, 50 m, 100 m, and the like, for example. In this example, after one piece of position information (arbitrary one piece of position information, for example (X1, Y1)) is updated to the dangerous event database 33 by the dangerous event storage means 23a, the position information (X, Unless Y) is more than a predetermined distance away from the one position information (X1, Y1), the position information (X, Y) of the host vehicle and the one position information (X1, Y1) are not within the predetermined distance. Can be configured.

  Furthermore, in the above example, the predetermined distance may be changed according to the traveling direction and speed of the host vehicle acquired by the traffic environment acquisition unit 22. For example, as the traveling direction of the host vehicle (X, Y) approaches the position information (for example, (X1, Y1)) on the dangerous event database 33, or as the speed of the host vehicle increases, the default value increases. It can also be configured to increase the distance.

  As another example of the predetermined condition, for example, the navigation system calculates the estimated arrival time of the host vehicle to any one piece of position information (for example, (X1, Y1)) of the position information stored in the dangerous event database 33. In this case, the condition is whether the time is within 10 seconds, for example.

  The driving support service provided by the driving support means 25 is a service for notifying the driver of danger information via the voice and video of the output unit 12 or a service for notifying the driver of danger information via vibration of the steering wheel or seat. Including. The danger information to be notified can be changed according to the contents of the dangerous event. Further, the driving support service can include switching to automatic driving.

  With this configuration, in this embodiment, when the position of the host vehicle approaches or is about to approach one of the plurality of positions stored in the dangerous event database 33, the one The driver can be provided with a driving support service corresponding to the dangerous event associated with the location of the driver.

  FIG. 5 is a flowchart illustrating an operation of generating the dangerous event database 33 of the driving support device 1 according to the embodiment of the present invention. The processing of this flowchart is preferably executed at regular intervals by the processing unit 10a executing a program.

  In this embodiment, the traffic environment acquisition unit 22 acquires position information and the like at regular intervals in a control process different from the flowchart. Therefore, the position information and the like can be used in the processing of this flowchart.

  First, the voice recognition means 21 acquires the voice uttered by the driver and executes voice recognition processing (S501). Note that the processing of this flowchart may be started when the voice is acquired with the step 501 as a trigger.

  The dangerous event detection unit 24 determines whether the word recognized by the voice recognition unit 21 corresponds to any of the dangerous event related words stored in the dangerous event related word database 31 (S502). If the speech-recognized word does not correspond to a dangerous event-related word, the process of this flowchart ends.

  If any of the dangerous event-related words is applicable, the dangerous event detection unit 24 detects a dangerous event associated with the speech-recognized word (S503).

  The dangerous event storage unit 23a stores the detected dangerous event in the dangerous event database 33 in association with the position information of the own vehicle acquired by the traffic environment acquiring unit 22 when the dangerous event is detected (S504). ). In this way, it is possible to generate / update the dangerous event database 33 that associates the dangerous event with the position information based on the utterance content of the driver.

  The acquisition of position information and the like by the traffic environment acquisition unit 22 may be incorporated in a part of the control processing of this flowchart, for example, before or after the voice recognition processing (S501) or immediately before the dangerous event storage (S504). .

  FIG. 6 is a flowchart for explaining the operation of providing the driving support service of the driving support device 1 according to the embodiment of the present invention to the driver. The processing of this flowchart is preferably executed at regular intervals by the processing unit 10a executing a program.

  First, the traffic environment acquisition means 22 acquires position information (S601). As described above, the traffic environment acquisition unit 22 can acquire position information and the like at regular intervals in a control process different from the flowchart.

  The driving support means 25 determines whether or not the acquired position information of the own vehicle and any one of the position information stored in the dangerous event database 33 satisfies a predetermined condition (S602). If the predetermined condition is not satisfied, the process of this flowchart is terminated.

  When the predetermined condition is satisfied, the driving support means 25 provides the driver with a driving support service corresponding to the dangerous event associated with the position information that satisfies the predetermined condition in the dangerous event database 33 (S603). In this way, the driving support service can be provided to the driver using the dangerous event database 33.

[Modification]
A modification of the present embodiment will be described below. The modifications described below can be applied to any embodiment of the present invention by appropriately combining them as long as no contradiction arises.

  In one example, the driving support apparatus 1 further includes a traffic information receiver (not shown) for receiving traffic information provided by FM multiplex broadcasting, radio wave beacons, and optical beacons. The traffic information receiver receives information including, for example, the traffic condition of each road, the traffic distance, traffic restrictions, travel time, and the like.

  In this case, the traffic environment acquisition means 22 has a function of acquiring a traffic congestion status, a traffic congestion distance, a traffic regulation, a required travel time, and the like of each road by using a traffic information receiver.

  In another example, the driving support device 1 includes a radar (not shown). The radar is, for example, a millimeter wave radar (frequency 76 GHz to 77 GHz), and includes a front antenna for measuring a front area of the vehicle (own vehicle). The radar transmits a measurement wave from the front antenna, receives a reflected wave reflected by an obstacle such as another vehicle, a fixed structure on the road, or a pedestrian object, and between the obstacle and the vehicle. Configured to measure relative distance and relative speed. The vehicle is not limited to a four-wheeled vehicle but includes a traveling body such as a two-wheeled vehicle or a bicycle. The front antenna may be a transmission / reception antenna, or a transmission antenna and a reception antenna may be provided. The radar can further include a rear antenna.

  In yet another example, the driving support device 1 includes a camera (not shown). The camera is an image sensor or the like, and can acquire image information around the vehicle by imaging the surroundings including the front of the vehicle. For example, the camera is an in-vehicle camera, and is installed on the back side of a rearview mirror or the like, and by photographing the front through the front window, it is possible to photograph other vehicles, the environment of the road on which the vehicle is traveling, and the like.

  In this case, the traffic environment acquisition unit 22 further includes an obstacle detection unit. The obstacle detection means has a function of detecting obstacles (other vehicles, pedestrians, etc.) existing around the host vehicle by using a radar or a camera.

  In another example, the driving support device 1 is an accelerator sensor that detects a driver's accelerator operation amount, a brake sensor that detects a driver's brake depression amount, as sensors for acquiring various driving states of the driver, And at least one of steering angle sensors for detecting the steering operation angle of the driver.

  In this case, the traffic environment acquisition unit 22 further includes a driving state acquisition unit. The driving state acquisition means has a function of acquiring the driving state of the driver such as sudden acceleration, sudden braking, sudden steering, etc. from information such as an accelerator sensor, a brake sensor, a steering angle sensor, and the aforementioned vehicle speed sensor.

  In another example, the driving support device 1 is built in a driver's seat, a sweat meter for measuring the degree of sweating of the driver's hand installed on the steering, as a sensor for acquiring various biological information of the driver. At least one of a heart rate sensor for measuring the heart rate of the driver and a pupil diameter sensor for measuring the pupil diameter of the driver installed together with the camera installed in the vehicle.

  In this case, the traffic environment acquisition unit 22 further includes a biological information acquisition unit. The biological information acquisition unit has a function of acquiring information such as a sweat meter, a heart rate sensor, and a pupil diameter sensor as the biological information of the driver.

  In one example, the dangerous event database 33 may be a database that further associates vehicle speed information, time information, information about obstacles around the vehicle, information about driving conditions, driver's biological information, and the like. In this example, when a dangerous event is detected by the dangerous event detecting unit 24, the dangerous event storage unit 23a displays the detected dangerous event as vehicle speed information, time information, information about surrounding obstacles, driving state, and the like. And a function for storing the information in the dangerous event database 33 in further association with the driver's biological information and the like. Also in the following examples, it is assumed that the dangerous event database 33 associated with the above information can be used as necessary.

  In one example, the dangerous event detection unit 24 is a case where the word recognized by the voice recognition unit 21 corresponds to one of the dangerous event related words stored in the dangerous event related word database 31. In addition, when an obstacle is detected by the obstacle detection means, it has a function of detecting a dangerous event when the obstacle exists in a predetermined area around the host vehicle. The predetermined area is, for example, a front area of the vehicle that is visible to the driver.

  By adopting such a configuration, in this embodiment, when the word included in the voice acquired from the driver corresponds to one of the dangerous event related words stored in the dangerous event related word database 31. It is possible to detect a dangerous event by determining whether or not the word is issued by a driver due to an obstacle such as another vehicle or a pedestrian. In addition, the driver's whimsical speech can be excluded.

  However, the dangerous event detection means 24 determines whether or not an obstacle has been detected if the speech-recognized word is a predetermined word of some of the dangerous event-related words stored in the dangerous event-related word database 31. Regardless of this, a dangerous event may be detected. The above-mentioned part of the predetermined words are words that the driver speaks due to, for example, strong winds or road steps. These are words that are considered not to be spoken by the driver due to obstacles.

  In another example, the dangerous event detection unit 24 is a case where the word recognized by the voice recognition unit 21 corresponds to one of the dangerous event related words stored in the dangerous event related word database 31. In addition, it has a function of detecting a dangerous event when the driving state acquisition means acquires driving states such as sudden acceleration, sudden steering, and sudden braking.

  By adopting such a configuration, in this embodiment, when the word included in the voice acquired from the driver corresponds to one of the dangerous event related words stored in the dangerous event related word database 31. It is possible to detect a dangerous event by judging whether or not the driver is in a driving state that is considered to have experienced the dangerous event.

  In another example, the dangerous event detection unit 24 is a case where the word recognized by the voice recognition unit 21 corresponds to one of the dangerous event related words stored in the dangerous event related word database 31. In addition, it has a function of detecting a dangerous event when biological information such as perspiration over a predetermined amount, a heart rate over a predetermined number, and a pupil diameter over a predetermined size is acquired by the biometric information acquisition means.

  By adopting such a configuration, in this embodiment, when the word included in the voice acquired from the driver corresponds to one of the dangerous event related words stored in the dangerous event related word database 31. Then, it is possible to detect the dangerous event by judging whether or not the driver is in a biological state considered to have experienced the dangerous event.

  Next, a case where the position information of the host vehicle acquired by the traffic environment acquisition unit 22 satisfies a predetermined condition with any one of the position information stored in the dangerous event database 33 will be considered.

  In one example, when the predetermined condition is satisfied in this way, the time information acquired by the traffic environment acquisition unit 22 is further related to the time information associated with the position information satisfying the predetermined condition (the position satisfying the predetermined condition). If the time zone is the same as the time information associated with the dangerous event associated with the information), the driving support means 25 provides the driving support service corresponding to the dangerous event associated with the location information that satisfies the predetermined condition. Has the function of providing the driver with

  For example, the time zone is divided into two time zone groups, a daytime from 6 am to 6 pm and a night time from 6 pm to 6 am, and the driving support means 25 determines the time when determining time information. Judgment is made based on whether the band groups are the same. In this case, the time information stored in the dangerous event database 33 can be the time zone group described above. The time zone is not limited to the above example. For example, the morning time from 6:00 am to 0:00 pm, the afternoon time from pm to 6:00 pm, and the afternoon from 6:00 pm to midnight You may divide it into four time zone groups: hours, midnight to 6pm.

  With this configuration, in this embodiment, when the position of the host vehicle approaches or is about to approach one of the plurality of positions stored in the dangerous event database 33, the one The driving support service can be provided to the driver based on whether the time information associated with the position of the vehicle and the time information during the current traveling are in the same time zone. As a result, the driving support service can be provided by selecting according to the time information, so it is possible to eliminate the troublesomeness that the driver may feel.

[Other Embodiments]
FIG. 7 is a schematic configuration diagram of a driving support system 2 according to another embodiment of the present invention. As shown in FIG. 7, the driving support system 2 mainly includes an electronic device 3 and a server 4. FIG. 7 shows the operation support system 2 including one vehicle (electronic device 3). Preferably, the operation support system 2 includes a plurality of vehicles, and each vehicle has an electronic device 3, respectively. . In one example, the electronic device 3 is a portable terminal device such as a smartphone. In another example, the electronic device 3 is an in-vehicle PC (which may have a navigation function) mounted on a vehicle and having a communication function. is there. In yet another example, when the portable terminal device and the in-vehicle PC perform cooperative control, the portable terminal device and the in-vehicle PC correspond to the electronic device 3. The server device 4 is a computer having a processing unit capable of executing a large amount of data processing and a storage unit capable of storing a large amount of data capacity, and is configured to be communicable with each electronic device 3. Send and receive information.

  The schematic configuration of each electronic device 3 is the same as the schematic configuration of the operation support device 1 shown in FIG. However, the control part with which each electronic device 3 is provided differs in the point provided with the communication part for communicating with the server apparatus 4, the point which the server apparatus 4 has for various databases, etc. As described above, the operation support system 2 includes the risk event related word database 31, the map database 32, and the risk event database 33, similar to the operation support device 1 shown in FIG. 3, and the server device 4 stores these databases. Have. However, you may comprise so that each electronic device 3 may have some databases.

  The functional blocks of the driving support system 2 are the same as the functional blocks of the operation support apparatus 1 shown in FIG. Each of these functions has functions equivalent to the functions described above. When at least one of the electronic devices 3 and the server device 4 has various functions shown in FIG. 2, the driving support system 2 can realize the various functions shown in FIG. However, it should be understood that each of the electronic devices 3 and the server device 4 includes communication means for bidirectional communication.

  Here, the outline | summary of the process of the operation | movement which produces | generates the dangerous event database 33 of the driving assistance system 2 by other embodiment of this invention is demonstrated.

  The electronic device 3 (voice recognition means 21) in one vehicle acquires character string data of words based on the voice data spoken by the driver, and transmits it to the server device 4. The server device 4 (dangerous event detection means 24) determines whether the received word corresponds to any of the dangerous event related words stored in the dangerous event related word database 31 provided in the server device 4, If applicable, the dangerous event associated with the received word is detected.

  The server device 4 (hazardous event storage means 23a) is the one vehicle acquired by the server device 4 (traffic environment acquisition means 22) when the dangerous event is detected, that is, the dangerous event detected as described above. The dangerous event database 33 is stored in association with the position information of the vehicle in which the dangerous event is detected.

  In one example, the electronic device 21 transmits analog voice data spoken by the driver to the server device 4, and the server device 4 (voice recognition means 21) acquires word string data based on the voice data. You can also

  In one example, the traffic environment acquisition unit 22 has a function of acquiring vehicle information such as the type, width, and height of the vehicle. In this example, the dangerous event database 33 can be a database to which vehicle information is further associated. When the server device 4 (dangerous event storage unit 23a) detects a dangerous event, the detected dangerous event is The risk event database 33 can store the risk event in association with the vehicle information of the vehicle in which the risk event is detected.

  By adopting such a configuration, in the above-described embodiment, the dangerous event database 33 can include data of each vehicle included in the driving support system 2.

  Next, an outline of processing of an operation for providing a driving support service of the driving support system 2 to a driver according to another embodiment of the present invention will be described.

  The server device 4 (driving support means 25), when the position information of one vehicle acquired by the traffic environment acquisition means 22 meets a predetermined condition with any one of the position information stored in the dangerous event database 33 The data corresponding to the dangerous event associated with the position information that satisfies the predetermined condition in the dangerous event database 33 is transmitted to the electronic device 3 of the one vehicle. When the electronic device 3 receives the data, the electronic device 3 provides the driver with a driving support service corresponding to the dangerous event.

  By adopting such a configuration, in the above-described embodiment, the dangerous event database 33 can include data of each vehicle included in the driving support system 2, so that a more appropriate driving support service based on more data can be provided. It becomes possible to provide.

  In one example, in the case where the position information of one vehicle acquired by the traffic environment acquisition means 22 satisfies the predetermined condition with any one of the position information stored in the dangerous event database 33, the traffic environment When the vehicle information of the one vehicle acquired by the acquisition means 22 is the same as or similar to the vehicle information associated with the position information satisfying the predetermined condition in the dangerous event database 33 (for example, when the vehicle type is the same). The server device 4 (driving support means 25) transmits data corresponding to the dangerous event associated with the position information satisfying the predetermined condition to the electronic device 3 of the one vehicle. When the electronic device 3 receives the data, the electronic device 3 provides the driver with a driving support service corresponding to the dangerous event.

  By adopting such a configuration, in the above embodiment, when the position of the host vehicle approaches or is about to approach one of a plurality of positions stored in the dangerous event database 33, the one The driving support service can be provided to the driver based on whether the vehicle information associated with the position of the vehicle and the vehicle information about the one vehicle are the same or similar. Accordingly, since it is possible to provide driving support services by selecting according to the vehicle information, it is possible to eliminate the troublesomeness that the driver may feel.

  Next, the effect of the driving assistance device 1 according to the embodiment of the present invention will be described. In the present embodiment, the risk event detection means 24 determines whether a word (word or phrase) included in the voice acquired from the occupant (for example, a driver) corresponds to a predetermined risk event related word. Thus, the dangerous event experienced by the occupant can be detected based on the utterance content of the occupant. Further, the detected dangerous event can be stored in the dangerous event database 33 together with the position information where the dangerous event has occurred by the dangerous event storage means 23a.

  In the present embodiment, when the word included in the voice acquired from the occupant corresponds to a predetermined dangerous event-related word by the dangerous event detection unit 24, the word is used as an obstacle such as another vehicle or a pedestrian. Therefore, it is possible to detect only a dangerous event caused by the occupant. As a result, the risk event database 33 can be generated by analyzing the factors of the risk event, so that a more appropriate driving support service can be provided.

  In this embodiment, when the position of the host vehicle satisfies a predetermined condition with one of a plurality of positions stored in the dangerous event database 33 by the driving support means 25 (for example, two target positions are within a predetermined distance). The driving support service corresponding to the dangerous event associated with the one position can be provided to the occupant.

  In the present embodiment, when the position of the host vehicle satisfies a predetermined condition and one of a plurality of positions stored in the dangerous event database 33 by the driving support means 25, the time associated with the one position. The driving support service can be provided to the occupant based on whether the information and the time information during the current traveling are in the same time zone. As a result, driving support services can be provided by selecting according to time information, so it is possible to provide more appropriate driving support services and eliminate the annoyance that passengers may feel. Is possible.

  In another embodiment, the technology realized by the driving support device 1 is realized by a driving support system 2 including each electronic device 3 mounted on each vehicle and a server device 4 that is communicably connected to each electronic device 3. Can be realized. Thereby, since the dangerous event database 33 can include data of each vehicle included in the driving support system 2, it is possible to provide a more appropriate driving support service based on more data.

  In another embodiment, when the position of one vehicle satisfies a predetermined condition with one of the plurality of positions stored in the dangerous event database 33 by the driving support means 25, the vehicle is associated with the one position. The driving support service can be provided to the occupant based on whether the vehicle information and the vehicle information about the one vehicle are the same or similar. As a result, the driving support service can be provided by selecting according to the information of the vehicle, so it becomes possible to provide a more appropriate driving support service and eliminates the troublesomeness that the passenger may feel. It becomes possible.

  Each Example described above is an illustration for explaining the present invention, and the present invention is not limited to these Examples. As long as no contradiction arises, the examples can be combined as appropriate and applied to any embodiment of the present invention. That is, the present invention can be implemented in various forms without departing from the gist thereof.

DESCRIPTION OF SYMBOLS 1 Driving assistance device 2 Driving assistance system 3 Electronic device 4 Server apparatus 10 Control part 10a Processing part 10b Storage part 10c Interface part 11 Voice input part 12 Output part 13 Position sensor 21 Voice recognition means 22 Traffic environment acquisition means 23 Storage means 24 Danger Event detection means 25 Driving support means 31 Danger event related word database 32 Map database 33 Danger event database

Claims (9)

A voice recognition means for recognizing the voice of the passenger,
A traffic environment acquisition means for acquiring vehicle position information;
When a word included in the recognized occupant's voice corresponds to one of the predetermined dangerous event-related words, based on the dangerous event-related word database in which the dangerous event-related word and the dangerous event are associated, A dangerous event detection means for detecting a dangerous event related to a word;
A dangerous event storage means for storing the detected dangerous event in a dangerous event database in which the dangerous event and the positional information are associated in association with the acquired positional information when the dangerous event is detected;
A driving support apparatus comprising: The traffic environment acquisition means detects obstacles existing around the vehicle,
The dangerous event detection means is a case where a word included in the recognized occupant's voice corresponds to any one of predetermined dangerous event-related words, and the detected obstacle is a predetermined around the vehicle. The driving support device according to claim 1, wherein a dangerous event is detected based on the dangerous event-related word database when existing in a region.   When the location information acquired by the traffic environment acquisition means satisfies the location information stored in the danger event database and a predetermined condition, the driving support service corresponding to the risk event associated with the location information satisfying the predetermined condition The driving support device according to claim 1, further comprising driving support means for providing the driver with the driving assistance. The traffic environment acquisition means acquires time information of the vehicle,
The dangerous event storage means stores the detected dangerous event in the dangerous event database in further association with the acquired time information when the dangerous event is detected,
The driving support means, based on the acquired time information and time information associated with the position information satisfying the predetermined condition, drives corresponding to the dangerous event associated with the position information satisfying the predetermined condition. The driving support device according to claim 3, wherein a support service is provided to the occupant. A driving support system including each electronic device mounted on one or more vehicles and a server device connected to be communicable with each electronic device,
Voice recognition means for recognizing the voice of a passenger of each vehicle;
Traffic environment acquisition means for acquiring position information of each vehicle;
When a word included in the recognized occupant's voice corresponds to one of the predetermined dangerous event-related words, based on the dangerous event-related word database in which the dangerous event-related word and the dangerous event are associated, A dangerous event detection means for detecting a dangerous event related to a word;
The detected dangerous event is stored in a dangerous event database in which the dangerous event and the positional information are associated with each other in association with the acquired positional information when the dangerous event of the vehicle in which the dangerous event is detected is detected. Dangerous event storage means to
A driving support system in which each of the electronic devices or the server includes the means. The traffic environment acquisition means detects obstacles around each vehicle,
The dangerous event detection means is a case where a word included in the recognized occupant's voice corresponds to any one of predetermined dangerous event-related words, and the detected obstacle is detected in the occupant's vehicle. The driving support system according to claim 5, wherein a dangerous event is detected based on the dangerous event-related word database when existing in a predetermined area around the vehicle. Each of the electronic devices or the server is
When the acquired position information of one vehicle satisfies the predetermined condition with the position information stored in the dangerous event database, a driving support service corresponding to the dangerous event associated with the position information satisfying the predetermined condition is provided. The driving support system according to claim 5, further comprising driving support means for providing to a passenger of the one vehicle. The traffic environment acquisition means acquires time information of each vehicle,
The dangerous event storage means stores the detected dangerous event in the dangerous event database in further association with the acquired time information when the dangerous event is detected,
The driving support means, based on the acquired time information of one vehicle and the time information associated with the position information satisfying the predetermined condition, a dangerous event associated with the position information satisfying the predetermined condition The driving support system according to claim 7, wherein a driving support service corresponding to is provided to an occupant of the one vehicle. The traffic environment acquisition means acquires vehicle information of each vehicle,
The dangerous event storage means stores the detected dangerous event in the dangerous event database in further association with the acquired vehicle information when the dangerous event of the vehicle in which the dangerous event is detected is detected. ,
The driving support means, based on the acquired vehicle information of the one vehicle and the vehicle information associated with the position information satisfying the predetermined condition, the risk associated with the position information satisfying the predetermined condition The driving support system according to claim 7 or 8, wherein a driving support service corresponding to an event is provided to an occupant of the one vehicle.

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