JPWO2018055753A1 - Navigation device - Google Patents

Abstract

A vibration mode determination unit (105) for determining a vibration condition for presenting the guidance information generated by the guidance information generation unit (103) to the passenger by vibration, and a control for presenting the guidance information to the passenger under the determined vibration condition A vibration control unit (107) that generates information, and the vibration mode determination unit (105) refers to the driving state of the vehicle and determines that the vibration to be presented to the occupant can be reduced. Reduce new vibration conditions and determine new vibration conditions.

Description

  The present invention relates to a technique for controlling a presentation mode of guidance information in a navigation device.

Conventionally, in a navigation device, information indicating the traveling direction of a vehicle (for example, “right turn”, “left turn”, etc.) is presented by voice. However, the voice presenting information indicating the traveling direction of the vehicle is canceled out by the engine sound of the vehicle, the voice of the conversation in the vehicle, the sound of the car stereo, and the like, and there are cases where it is difficult for the occupant to hear the information by voice. Therefore, a technique for presenting information indicating the traveling direction of the vehicle to the occupant by vibrating the vibration device is used.
For example, Patent Document 1 discloses a navigation device that performs control to vibrate a vibration device based on a control signal corresponding to the generation of a voice when a guidance voice necessary for a driver is generated according to map information. Has been.

JP-A-11-183183

  According to the navigation device described in Patent Document 1, since control is performed to vibrate the vibration device for all generated guidance voices, voice guidance is also provided for routes or places familiar to the driver. Guidance is performed by both vibrations of the vibration device. For this reason, there are problems that the driving of the driver is obstructed and the calculation amount of the guidance information presentation processing increases.

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to present guidance information necessary for an occupant and to suppress the amount of calculation of guidance information presentation processing.

  The navigation device according to the present invention includes a vehicle information acquisition unit that acquires vehicle position information, a route search unit that refers to map information and searches for a route based on the position information acquired by the vehicle information acquisition unit, and a route search A guidance information generation unit that generates guidance information for the route searched by the unit, and a vibration mode determination unit that determines a vibration condition for presenting the guidance information generated by the guidance information generation unit to the passenger by vibration based on the driving situation of the vehicle And a vibration control unit that generates control information for presenting the guidance information to the occupant under the vibration condition determined by the vibration mode determination unit, the vibration mode determination unit refers to the driving situation of the vehicle, and When it is determined that the vibration to be presented can be reduced, a preset vibration condition is reduced and a new vibration condition is determined.

  According to the present invention, it is possible to present guidance information necessary for the occupant without obstructing the driving of the driver. Thereby, the calculation amount of the navigation device can also be suppressed.

1 is a block diagram showing a configuration of a navigation device according to Embodiment 1. FIG. 2A and 2B are diagrams illustrating a hardware configuration example of the navigation device according to the first embodiment. 3 is a flowchart showing an operation of the navigation device according to the first embodiment. It is a figure which shows an example of the vibration conditions of the navigation apparatus which concerns on Embodiment 1. FIG. 6 is another flowchart showing the operation of the navigation device according to the first embodiment. 6 is a block diagram illustrating a configuration of a navigation device according to Embodiment 2. FIG. 10 is a flowchart showing an operation of accumulating evaluation information of the navigation device according to the second embodiment. 12 is a flowchart showing a vibration condition determination operation of the navigation device according to the second embodiment. FIG. 10 is a block diagram illustrating a configuration of a navigation device according to a third embodiment. 10 is a flowchart showing an operation for determining a vibration condition of the navigation device according to the third embodiment. 12 is a flowchart showing another operation for determining the vibration condition of the navigation device according to the third embodiment. 12 is a flowchart showing another operation for determining the vibration condition of the navigation device according to the third embodiment. FIG. 10 is a block diagram illustrating a configuration of a navigation device according to a fourth embodiment. 15 is a flowchart showing a vibration condition determining operation of the navigation device according to the fourth embodiment. FIG. 10 is a block diagram illustrating a configuration of a navigation device according to a fifth embodiment. 10 is a flowchart showing a vibration condition determination operation of the navigation device according to the fifth embodiment.

Hereinafter, in order to explain the present invention in more detail, modes for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of navigation device 100 according to the first embodiment.
The navigation device 100 includes a vehicle information acquisition unit 101, a route search unit 102, a guidance information generation unit 103, a map information storage unit 104, a vibration mode determination unit 105, a travel history storage unit 106, a vibration control unit 107, and an output control unit 108. Prepare.
The navigation device 100 is connected to an output device 200 for presenting information to the vehicle occupant. The output device 200 includes, for example, a vibration device 201, a display device 202, and an audio output device 203.

Details of the navigation device 100 will be described.
The vehicle information acquisition unit 101 acquires the current position information and time information of the host vehicle acquired by a GPS receiver (not shown). The vehicle information acquisition unit 101 acquires vehicle information such as the vehicle speed, steering angle, brake operation, gear operation, and back operation from a known network such as a controller area network (CAN). The vehicle information acquisition unit 101 outputs the acquired current position information and time information to the route search unit 102. The vehicle information acquisition unit 101 stores the acquired current position information and vehicle information in the travel history storage unit 106.

  The route search unit 102 searches the route from the current position of the host vehicle to the destination with reference to the map information storage unit 104. Note that the starting point of the route to be searched is not limited to the current position of the host vehicle, and may be a point arbitrarily set by the occupant. The guidance information generation unit 103 refers to the map information storage unit 104 and generates guidance information for the guidance points included in the route searched by the route search unit 102. Here, the guidance information is information for notifying the occupant that the guidance point is a right / left turn point, a highway entrance / exit point, a traffic jam occurrence point, a traffic stop point, a point requiring deceleration, or the like.

  The map information storage unit 104 stores digitized map data including road data that defines roads by links and nodes. Further, the map information storage unit 104 stores various data for realizing the navigation function, for example, information on guide points, facility information, and the like. The map information storage unit 104 may be constituted by, for example, an HDD (Hard Disk Drive) device, a disk drive device that reads data from a mounted DVD (Digital Versatile Disk) or CD (Compact Disc), USB memory, or SD You may comprise by a card | curd etc.

  The vibration mode determination unit 105 determines a vibration condition for causing the vibration device 201 to vibrate. The vibration mode determination unit 105 determines the strength, frequency, timing, and the like of vibration applied to the vibration device 201 as vibration conditions. When it is determined that the vibration mode determining unit 105 can reduce the vibration to be presented to the occupant with reference to the driving state of the vehicle, the vibration mode determining unit 105 reduces the vibration condition set in advance. Here, reducing the vibration condition means reducing the intensity of vibration, reducing the frequency, and bringing the timing closer to the guide point. In the first embodiment, the vibration mode determination unit 105 refers to the travel history storage unit 106 as the driving state of the vehicle, and indicates whether the host vehicle has traveled in the past at the guidance point included in the guidance information. It is determined whether or not the vibration presented to the occupant can be reduced based on the travel history.

  The travel history storage unit 106 stores a travel history of the host vehicle. The travel history storage unit 106 includes, as a travel history, a route searched by the route search unit 102, a travel route obtained based on the current position information and vehicle information acquired by the vehicle information acquisition unit 101, the number of travels of the travel route, Information indicating a traveling state indicating how the traveling route is traveled is accumulated.

The vibration control unit 107 generates control information for presenting the guidance information generated by the guidance information generation unit 103 under the vibration condition determined by the vibration mode determination unit 105. Further, the vibration control unit 107 refers to the current position information acquired by the vehicle information acquisition unit 101, and outputs the generated control information to the vibration device 201 when the host vehicle approaches the guidance point.
The output control unit 108 generates a video signal and an audio signal for outputting the guidance information generated by the guidance information generation unit 103 as video and audio. Further, the output control unit 108 refers to the current position information acquired by the vehicle information acquisition unit 101, and outputs the generated video signal to the display device 202 when the host vehicle approaches the guidance point, and generates the generated audio signal. Is output to the audio output device 203.

Next, details of the output device 200 will be described.
The vibration device 201 is provided in, for example, a seat of a driver's seat, a vehicle handle, a wearable device such as a watch worn by a driver and other occupants, or a smartphone held by the driver and other occupants. The vibration device 201 generates vibrations in the above-described seat of the driver's seat at the strength, frequency, and timing specified by the control information generated by the vibration control unit 107.

  The display device 202 includes, for example, an LCD (Liquid Crystal Display), and displays a map, a route, an enlarged view, various guidance messages, and the like on the screen according to the video signal generated by the output control unit 108. The audio output device 203 is constituted by a speaker, for example, and outputs a guidance message or the like for the guidance point by voice according to the audio signal generated by the output control unit 108.

Next, a hardware configuration example of the navigation device 100 will be described.
2A and 2B are diagrams illustrating a hardware configuration example of the navigation device 100. FIG.
Vehicle information acquisition unit 101, route search unit 102, guidance information generation unit 103, vibration mode determination unit 105, vibration control unit 107, and output control unit 108 in navigation device 100 are dedicated hardware as shown in FIG. 2A. It may be the processing circuit 100A or a processor 100B that executes a program stored in the memory 100C as shown in FIG. 2B.

  As shown in FIG. 2A, when the vehicle information acquisition unit 101, the route search unit 102, the guidance information generation unit 103, the vibration mode determination unit 105, the vibration control unit 107, and the output control unit 108 are dedicated hardware, a processing circuit 100A corresponds to, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a combination thereof. The functions of the vehicle information acquisition unit 101, route search unit 102, guidance information generation unit 103, vibration mode determination unit 105, vibration control unit 107, and output control unit 108 may be realized by a processing circuit. The functions may be combined and realized by a single processing circuit.

  As shown in FIG. 2B, when the vehicle information acquisition unit 101, the route search unit 102, the guidance information generation unit 103, the vibration mode determination unit 105, the vibration control unit 107, and the output control unit 108 are a processor 100B, the function of each unit is as follows. , Software, firmware, or a combination of software and firmware. Software or firmware is described as a program and stored in the memory 100C. The processor 100B reads and executes a program stored in the memory 100C, thereby executing a vehicle information acquisition unit 101, a route search unit 102, a guidance information generation unit 103, a vibration mode determination unit 105, a vibration control unit 107, and an output control unit. Each function of 108 is realized. That is, when the vehicle information acquisition unit 101, the route search unit 102, the guidance information generation unit 103, the vibration mode determination unit 105, the vibration control unit 107, and the output control unit 108 are executed by the processor 100B, FIG. A memory 100C is provided for storing a program in which each step shown in FIG. 5 is executed as a result. In addition, these programs cause the computer to execute the procedures or methods of the vehicle information acquisition unit 101, the route search unit 102, the guidance information generation unit 103, the vibration mode determination unit 105, the vibration control unit 107, and the output control unit 108. It can be said that there is.

Here, the processor 100B is, for example, a CPU (Central Processing Unit), a processing device, an arithmetic device, a processor, a microprocessor, a microcomputer, or a DSP (Digital Signal Processor).
The memory 100C may be a nonvolatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable ROM), or an EEPROM (Electrically EPROM). Further, it may be a magnetic disk such as a hard disk or a flexible disk, or an optical disk such as a mini disk, CD, or DVD.

  The functions of the vehicle information acquisition unit 101, the route search unit 102, the guidance information generation unit 103, the vibration mode determination unit 105, the vibration control unit 107, and the output control unit 108 are partially realized with dedicated hardware. A part may be realized by software or firmware. As described above, the processing circuit 100A in the navigation device 100 can realize the above-described functions by hardware, software, firmware, or a combination thereof.

Next, the operation of the navigation device 100 will be described.
FIG. 3 is a flowchart showing the operation of the navigation device 100 according to the first embodiment.
The vehicle information acquisition unit 101 acquires current position information of the host vehicle (step ST1). The route search unit 102 searches the route from the current position of the host vehicle to the destination with reference to the map information storage unit 104 (step ST2). The guide information generation unit 103 refers to the map information storage unit 104 and generates guide information for the guide points included in the route searched by the route search unit 102 (step ST3).

  The vibration mode determination unit 105 first sets a preset default condition as a vibration condition (step ST4). Here, the preset default conditions are conditions in which the intensity, frequency, and timing of vibration are set to be the strongest. The vibration mode determination unit 105 refers to the travel history storage unit 106 and acquires the number of times that the host vehicle has traveled past the guidance point included in the route searched by the route search unit 102 (step ST5). The vibration mode determination unit 105 determines whether or not the number of travels acquired in step ST5 is greater than or equal to a preset threshold value (step ST6). When the number of travels is equal to or greater than the threshold (step ST6; YES), the vibration mode determination unit 105 reduces the default condition set in step ST4 according to the number of travels equal to or greater than the threshold and determines a new vibration condition ( Step ST7). Here, the reduction of the default condition is to reduce the strength of vibration, to reduce the frequency, and to bring the timing closer to the guide point. On the other hand, when the number of travels is less than the threshold (step ST6; NO), the navigation device 100 executes the processing from step ST8 to step ST11.

  The vibration control unit 107 generates control information for presenting the guidance information generated in step ST3 at the guidance point to the occupant by vibration based on the vibration condition determined in step ST7 (step ST8). In the process of step ST8, the vibration control unit 107 refers to the current position information acquired by the vehicle information acquisition unit 101. When the host vehicle approaches the guidance point, the vibration control unit 107 transmits the control information generated in step ST8 to the vibration device 201. Output (step ST9). The output control unit 108 generates a video signal and an audio signal for outputting the guidance information generated in step ST3 as a video and a voice at the guidance point (step ST10). The output control unit 108 refers to the current position information acquired by the vehicle information acquisition unit 101, and outputs the video signal generated in step ST10 to the display device 202 when the host vehicle approaches the guidance point, and outputs an audio signal. It outputs to the audio | voice output apparatus 203 (step ST11). Thereafter, the process ends.

In step ST8 of the flowchart of FIG. 3 described above, the vibration control unit 107 generates control information for all the guidance points included in the route searched by the route search unit 102, and whenever the host vehicle approaches the guidance point. You may repeat the process of step ST9 which outputs control information to the vibration apparatus 201. FIG.
On the other hand, in step ST8, the vibration control unit 107 may generate control information at the next guidance point as the host vehicle travels, and repeat the process of outputting the control information to the vibration device 201 in step ST9.
The same applies to the output control unit 108.

The default condition reduction processing shown in step ST7 in the flowchart of FIG. 3 will be described with reference to FIG.
FIG. 4 is a diagram illustrating an example of a vibration condition of the navigation device 100 according to the first embodiment.
In the example of FIG. 4, the case where the vibration conditions from the vibration level 5 to the vibration level 1 are defined is shown. Further, the vibration condition includes the intensity, frequency, and timing of vibration applied to the vibration device 201.
The vibration conditions of the vibration level 5 are the vibration intensity “strong”, the frequency “five times until the guidance point”, and the timing “start guidance from 100 m before the guidance point”.
The vibration conditions of vibration level 3 are the intensity of vibration “medium”, the frequency “three times before the guide point”, and the timing “start guidance from 80 m before the guide point”.
The vibration condition of vibration level 1 is the vibration intensity “no vibration”.

  Further, as shown in FIG. 4, for example, a guide for the number of times of travel is defined for each level of vibration condition. In the vibration mode determination unit 105, it is assumed that the vibration condition of the vibration level 5 is set as a default condition in advance. The vibration mode determination unit 105 reduces the default condition when it is determined that the number of travels acquired in step ST4 is five and is equal to or greater than a threshold value (for example, four times). Since the number of times of traveling is five, the vibration mode determining unit 105 refers to the standard of the number of times of traveling shown in FIG. 4 and is one level lower than the vibration level 5 that is the default condition. Is determined as a new vibration condition.

Moreover, the vibration mode determination unit 105 may determine the vibration condition with reference to time information when the host vehicle is traveling in addition to or instead of the above-described number of times of traveling. Hereinafter, a case where the vibration mode determination unit 105 refers to the number of times of travel and time information will be described as an example.
The vehicle information acquisition unit 101 acquires time information in addition to the current position information of the host vehicle. In addition to the travel history of the host vehicle, the travel history storage unit 106 stores information indicating a time zone in which the host vehicle has traveled the guide route a specified number of times (hereinafter, referred to as a high-frequency time zone). The vibration mode determination unit 105 refers to the travel history storage unit 106 and can reduce vibrations presented to the occupant based on the number of times the vehicle has traveled past the guide point and the high frequency time zone of the guide point. Judgment is made. Specifically, the vibration mode determination unit 105 can reduce the vibration presented to the occupant when the number of times the host vehicle has traveled is equal to or greater than a threshold value and the travel time of the host vehicle is included in a high-frequency time zone. Judge that there is.

Next, an operation in which the navigation device 100 determines the vibration condition with reference to time information when the host vehicle is traveling in addition to the number of times of traveling will be described.
FIG. 5 is another flowchart showing the operation of the navigation device 100 according to the first embodiment. In the following, the same steps as those in the flowchart of FIG. 3 described above are denoted by the same reference numerals as those used in FIG. 3, and the description thereof will be omitted or simplified.
The vehicle information acquisition unit 101 acquires time information in addition to the current position information of the host vehicle (step ST21). Thereafter, the processing from step ST2 to step ST6 is performed.

  When the number of times of travel is equal to or greater than the threshold (step ST6; YES), the vibration mode determination unit 105 further refers to the travel history storage unit 106, and the time information acquired by the vehicle information acquisition unit 101 is a high-frequency time of the guidance point. It is determined whether or not the band is included (step ST22). When included in the high-frequency time zone (step ST22; YES), the vibration mode determination unit 105 sets the default condition set in step ST4 in accordance with the number of travels and considering the high-frequency time zone. A new vibration condition is determined (step ST23). Thereafter, the navigation device 100 executes the processing from step ST8 to step ST11.

  On the other hand, when the number of travels is less than the threshold (step ST6; NO), or when the time information is not included in the high-frequency time zone (step ST22; NO), the navigation device 100 performs the processing from step ST8 to step ST11. Execute.

As described above, when the number of times of travel at the guide point is high and the guide point is traveled in a high-frequency time zone, it is estimated that the driver is well aware of the guide point. Therefore, the vibration mode determination unit 105 reduces the default condition and determines a new vibration condition. Thereby, guidance information required for the passenger can be presented under presentation conditions suitable for the driving state of the vehicle.
On the other hand, although the number of times of traveling at the guidance point is large, when the guidance point is traveled at a time different from the high-frequency time zone, it cannot be said that the driver is well aware of the guidance point. Therefore, the vibration mode determination unit 105 determines the default condition as the vibration condition. Thereby, sufficient guidance information required for a passenger | crew can be shown on sufficient presentation conditions.

  In the flowchart of FIG. 5 described above, the vibration mode determination unit 105 has shown an operation of determining the vibration condition with reference to time information when the host vehicle is traveling in addition to the number of times of travel. The vibration condition can be determined by referring only to the time information when the host vehicle is traveling. Thereby, although it is a guidance point with few frequency | counts of driving | running | working, when driving | running | working in a high frequency time zone, the vibration mode determination part 105 reduces a default condition and determines a new vibration condition. Thereby, guidance information required for the passenger can be presented under presentation conditions suitable for the driving state of the vehicle.

  As described above, according to the first embodiment, the vehicle information acquisition unit 101 that acquires vehicle position information, the route search unit 102 that searches for a route based on the position information with reference to map information, A guidance information generation unit 103 that generates guidance information for the route, a vibration mode determination unit 105 that determines a vibration condition for presenting the generated guidance information to the occupant by vibration based on a driving situation of the vehicle, and Vibration control unit 107 that generates control information for presenting guidance information to the occupant under the vibration conditions, and vibration mode determination unit 105 can reduce the vibration to be presented to the occupant with reference to the driving situation of the vehicle When it is determined that the vehicle is in the vehicle, the vibration conditions set in advance are reduced and new vibration conditions are determined. Rukoto can. Thereby, the calculation amount of the navigation apparatus 100 can be suppressed.

  Further, according to the first embodiment, the vibration mode determination unit 105 refers to the travel history of the vehicle as the driving state of the vehicle, and when the number of times the vehicle has traveled the searched route is equal to or greater than the threshold value, Since the vibration condition set in advance is reduced to determine a new vibration condition, the vibration condition can be reduced at a guidance point where the number of times of travel is large. Thereby, presentation of the guidance information that inhibits the driving of the driver can be suppressed.

  Moreover, according to this Embodiment 1, the vibration mode determination part 105 refers to the time information which the vehicle information acquisition part 101 acquired as a driving | running state of a vehicle, and the said time information is contained in the preset time slot | zone. In this case, since the vibration conditions set in advance are reduced and a new vibration condition is determined, the vibration conditions are reduced when the vehicle travels on the searched route in a time zone where the vehicle often travels. can do. Thereby, presentation of the guidance information that inhibits the driving of the driver can be suppressed.

  In addition to the configuration of the first embodiment described above, the vibration mode determination unit 105 may determine a traveling environment such as at night, during rainfall, and during snowfall. When the vibration mode determination unit 105 determines that the time is nighttime, raining, or snowing, even if it is estimated that the route is well recognized, the default condition is set as the vibration condition. Thereby, in an environment where it is difficult for the driver to drive, it is possible to reliably present the guidance information necessary for the occupant.

Embodiment 2. FIG.
In the second embodiment, after the navigation device 100 presents the guidance information to the driver from the output device 200, it is evaluated whether the driver has recognized the guidance information, and the evaluation information is referred to when the next guidance information is presented. The structure to perform is shown.
FIG. 6 is a block diagram showing the configuration of the navigation device 100a according to the second embodiment.
The navigation device 100a according to Embodiment 2 includes an evaluation unit 109 and an evaluation information storage unit 110 instead of the travel history storage unit 106 of the navigation device 100 of Embodiment 1 shown in FIG. . Moreover, it replaces with the vibration mode determination part 105 of the navigation apparatus 100 of Embodiment 1, and is provided with the vibration mode determination part 105a.
In the following, the same or corresponding parts as the components of the navigation device 100 according to the first embodiment are denoted by the same reference numerals as those used in the first embodiment, and description thereof is omitted or simplified.

  The evaluation unit 109 evaluates whether or not the guidance information presented by the vehicle driver has been recognized. The evaluation unit 109 collates the vehicle position information acquired by the vehicle information acquisition unit 101 and the vehicle information acquired from a network such as CAN with the guidance information acquired from the guidance information generation unit 103, and the own vehicle becomes the guidance information. It is determined whether the vehicle has traveled along. When the host vehicle travels along the guidance information, the evaluation unit 109 evaluates that the degree of recognition of the guidance information is high, and gives an evaluation value higher than the reference. On the other hand, when the host vehicle does not travel along the guidance information, the evaluation unit 109 evaluates that the degree of recognition of the guidance information is low, and gives an evaluation value lower than the reference. The evaluation unit 109 generates evaluation information by associating the assigned evaluation value with the guidance point, guidance information, and vibration conditions at that time, and stores the evaluation information in the evaluation information storage unit 110.

  For example, when the driver has not followed the guidance information for instructing deceleration at a guidance point in the past, the evaluation unit 109 evaluates that the degree of recognition of the guidance information is low, and an evaluation value lower than the reference value (three points) (2 points). On the other hand, when following guidance information instructing deceleration at a guidance point where a driver is present in the past, the evaluation unit 109 evaluates that the degree of recognition of guidance information is high, and an evaluation value (3 points) higher than a reference value (three points). 4 points).

In addition, the evaluation unit 109 refers to the voice recognition result obtained from the voice recognition device 300 provided outside the navigation device 100, and the driver's reaction indicating that presentation of guidance information is unnecessary is obtained. In this case, it is evaluated that the degree of recognition of the guidance information is high, and an evaluation value higher than the reference is given.
Specifically, when the evaluation unit 109 determines that the driver has complained about the guidance information or the driver has struck the guidance information, the evaluation unit 109 evaluates that the degree of recognition of the guidance information is high. .

In the same manner as in the first embodiment, the vibration mode determination unit 105a refers to the driving situation of the vehicle and determines that the vibration to be presented to the occupant can be reduced. Reduce and determine new vibration conditions. In the second embodiment, the evaluation information storage unit 110 is referred to as the operation status of the vehicle, and it is determined whether or not the vibration to be presented to the occupant can be reduced based on the evaluation result when traveling the guidance point in the past.
The vibration mode determination unit 105a refers to the evaluation information storage unit 110, and when the evaluation information at the corresponding guidance point indicates an evaluation value higher than the threshold, the preset default condition is reduced and a new one is added. Determine the vibration conditions.
On the other hand, the vibration mode determination unit 105a refers to the evaluation information storage unit 110, and when the evaluation information at the corresponding guide point indicates an evaluation value lower than the threshold, the preset default condition is set as the vibration condition. To do.

Next, a hardware configuration example of the navigation device 100a will be described. Note that the description of the same configuration as that of Embodiment 1 is omitted.
The vibration mode determination unit 105a and the evaluation unit 109 in the navigation device 100a are a processor 100B that executes a program stored in the processing circuit 100A illustrated in FIG. 2A or the memory 100C illustrated in FIG. 2B.

Next, an operation in which the evaluation unit 109 generates evaluation information will be described.
FIG. 7 is a flowchart showing the operation of the evaluation unit 109 of the navigation device 100a according to the second embodiment.
The evaluation unit 109 acquires the current position information and vehicle information of the host vehicle from the vehicle information acquisition unit 101, and acquires a voice recognition result from the voice recognition device 300 (step ST31). The evaluation unit 109 acquires the guide point, the guide information, and the vibration condition when the information acquired in step ST31 is obtained from the route search unit 102, the guide information generation unit 103, and the vibration mode determination unit 105a (step ST32). ).

  The evaluation unit 109 compares the current position information and vehicle information acquired in step ST31 with the guidance information acquired in step ST32, and determines whether or not the vehicle has traveled along the guidance information (step ST33). . When traveling along the vehicle guidance information (step ST33; YES), the evaluation unit 109 evaluates that the degree of recognition of the driver is high, and gives an evaluation value higher than the reference value (step ST34). On the other hand, when the vehicle has not traveled along the guidance information (step ST33; NO), the evaluation unit 109 evaluates that the degree of recognition of the driver is low, and assigns an evaluation value lower than the reference value (step). ST35).

  Further, the evaluation unit 109 refers to the voice recognition result acquired in step ST31, and determines whether or not the driver's reaction indicating that the presentation of guidance information is unnecessary has been obtained (step ST36). When the driver's reaction indicating that the presentation of guidance information is unnecessary is obtained (step ST36; YES), the evaluation unit 109 evaluates that the degree of recognition of the driver is high, and sets an evaluation value higher than the reference value. (Step ST37). On the other hand, when the driver's reaction indicating that the presentation of the guidance information is unnecessary is not obtained (step ST36; NO), the process proceeds to step ST38.

The evaluation unit 109 generates evaluation information by associating the evaluation value given in step ST34, step ST35, or step ST37 with the guidance point, guidance information, and vibration condition acquired in step ST32, and the evaluation information storage unit 110 (Step ST38). Thereafter, the flowchart returns to the process of step ST31 and repeats the above-described process.
In the process of step ST38, when the evaluation information is already stored in the evaluation information storage unit 110 for the same guidance point and the same guidance information, the evaluation unit 109 adds or subtracts the evaluation value. As a result, the process of reflecting the current evaluation value in the evaluation information is performed.

Next, an operation in which the navigation device 100a determines the vibration condition based on the evaluation result will be described.
FIG. 8 is a flowchart showing the vibration condition determination operation of the navigation device 100a according to the second embodiment.
In FIG. 8, the same steps as those in the flowchart of the first embodiment shown in FIG.

  When the processing from step ST1 to step ST4 is performed, the vibration mode determination unit 105a refers to the evaluation information storage unit 110 and has traveled in the past at the guidance point included in the route searched by the route search unit 102 in step ST2. It is determined whether there is a problem (step ST41). If the vehicle has traveled in the past (step ST41; YES), the vibration mode determination unit 105a refers to the evaluation information storage unit 110, and whether or not the driver's evaluation value for the guidance information at the guidance point is equal to or greater than a threshold value. Is determined (step ST42).

When the evaluation value is greater than or equal to the threshold (step ST42; YES), the vibration mode determination unit 105a reduces the default condition set in step ST4 according to the evaluation value, and determines a new vibration condition (step ST43). After that, the navigation device 100a executes the processing from step ST8 to step ST11.
On the other hand, when the vehicle has not traveled in the past (step ST41; NO), or when the evaluation value is less than the threshold value (step ST42; NO), the navigation device 100a executes the processing from step ST8 to step ST11.

  As described above, when the evaluation value of the evaluation unit 109 is equal to or greater than the threshold value, the navigation device 100a determines that the degree of recognition of the guidance information is high, and reduces the set default condition. Thereby, vibration conditions can be reduced at a guidance point where the driver does not need the guidance information and at a guidance point where the driver feels that the guidance information is unnecessary.

  Further, when the evaluation value of the evaluation unit 109 is less than the threshold, the navigation device 100a determines that the degree of recognition with respect to the guidance information is low, and maintains the set default condition. This makes it possible to reliably present the guidance information at a guidance point where the driver easily misses the guidance information, a driver's habit, or a guidance point where a driving error occurs.

  As described above, according to the second embodiment, the evaluation unit 109 that evaluates whether the occupant has recognized the guidance information presented based on the control information is provided, and the vibration mode determination unit 105a includes the driving status of the vehicle. The evaluation result is referred to as follows, and when the evaluation value in the searched route is equal to or greater than the threshold value, the predetermined vibration condition is reduced and a new vibration condition is determined. The vibration condition can be reduced at the guidance point where the degree of recognition for is high. Thereby, presentation of the guidance information that inhibits the driving of the driver can be suppressed.

In addition, the configuration of the above-described second embodiment is changed to the configuration in which the vibration condition is determined in consideration of the number of times the vehicle has traveled as described in the first embodiment, or the vibration condition is determined in consideration of the travel time of the vehicle. Additional applications may be applied. In that case, the above-described evaluation unit 109 and evaluation information storage unit 110 are additionally provided in the navigation device 100 of the first embodiment shown in FIG.
As a result, even at a guidance point where the number of times of travel is greater than or equal to a threshold value or a guide point in a time zone where the vehicle travels at a frequency greater than or equal to the vehicle threshold value, The guidance information necessary for the occupant can be surely presented.

Embodiment 3 FIG.
In the third embodiment, a configuration is shown in which vibration conditions are determined using the occurrence of disturbances inside and outside the vehicle.
FIG. 9 is a block diagram illustrating a configuration of the navigation device 100b according to the third embodiment.
A navigation device 100b according to Embodiment 3 includes an in-vehicle situation acquisition unit 111 and an out-of-vehicle situation acquisition unit 112 instead of the travel history storage unit 106 of the navigation device 100 of Embodiment 1 shown in FIG. Yes. The in-vehicle situation acquisition unit 111 and the out-of-vehicle condition acquisition unit 112 acquire the occurrence of a disturbance inside and outside the vehicle. Moreover, it replaces with the vibration mode determination part 105 of the navigation apparatus 100 of Embodiment 1, and is provided with the vibration mode determination part 105b.
In the following, the same or corresponding parts as the components of the navigation device 100 according to the first embodiment are denoted by the same reference numerals as those used in the first embodiment, and description thereof is omitted or simplified.

  The in-vehicle situation acquisition unit 111 acquires audio information acquired by a microphone (not shown) installed in the vehicle. The in-vehicle situation acquisition unit 111 acquires information indicating presence / absence of noise in the vehicle and noise intensity from the acquired voice information. The vehicle interior status acquisition unit 111 determines whether there is noise in the vehicle based on whether music is being played in the vehicle, a child crying, a pet crying, a passenger talking, or the like. to decide. The in-vehicle situation acquisition unit 111 outputs information indicating the presence / absence of noise in the vehicle and the intensity of the noise to the vibration mode determination unit 105b as in-vehicle situation information.

  The vehicle outside condition acquisition unit 112 acquires the sound information outside the vehicle acquired by a microphone (not shown) installed outside the vehicle. The vehicle exterior condition acquisition unit 112 acquires information indicating the presence / absence of noise outside the vehicle and the intensity of the noise from the acquired voice information. The vehicle exterior status acquisition unit 112 determines the presence or absence of noise outside the vehicle based on whether construction is being performed outside the vehicle, whether a disaster has occurred, heavy rain or lightning strikes, and the like. The vehicle exterior situation acquisition unit 112 outputs information indicating the presence / absence of noise outside the vehicle and the intensity of the noise to the vibration mode determination unit 105b as vehicle exterior situation information.

  In addition to the information shown in Embodiment 1, the vehicle information acquisition unit 101 acquires information indicating the vibration state of the vehicle from a network such as CAN. The information indicating the vibration state of the vehicle acquired by the vehicle information acquisition unit 101 is information indicating the presence / absence of vibration generated in the vehicle, the intensity of vibration, and the like.

  The vibration mode determination unit 105b includes at least one information of in-vehicle state information acquired by the in-vehicle state acquisition unit 111, out-of-vehicle state information acquired by the out-of-vehicle state acquisition unit 112, or information indicating the vibration state acquired by the vehicle information acquisition unit 101. Based on this, it is determined whether or not a disturbance has occurred in the vehicle. The vibration mode determination unit 105b determines the vibration condition based on the determination result.

Specifically, the vibration mode determination unit 105b is based on the in-vehicle situation information acquired by the in-vehicle situation acquisition unit 111, and no noise is generated in the vehicle, or the intensity of the noise generated in the vehicle is less than the threshold value. When it is determined that there is a disturbance, it is determined that no disturbance has occurred in the vehicle.
On the other hand, when the vibration mode determination unit 105b determines that noise having a strength equal to or greater than the threshold value is generated in the vehicle based on the vehicle interior status information acquired by the vehicle interior status acquisition unit 111, a disturbance occurs in the vehicle. It is determined that

The vibration mode determination unit 105b, based on the vehicle outside situation information acquired by the vehicle outside situation acquisition unit 112, determines that no outside vehicle noise is generated or the intensity of noise generated in the vehicle is less than a threshold value. It is determined that no disturbance has occurred in the vehicle.
On the other hand, when the vibration mode determination unit 105b determines that noise having an intensity greater than or equal to the threshold value is generated outside the vehicle based on the vehicle outside situation information acquired by the vehicle outside situation acquisition unit 112, a disturbance occurs in the vehicle. It is determined that

When the vibration mode determination unit 105b determines that no vibration is generated in the vehicle based on the information indicating the vibration state acquired by the vehicle information acquisition unit 101, or the intensity of the vibration generated in the vehicle is less than a threshold value. In addition, it is determined that no disturbance has occurred in the vehicle.
On the other hand, when the vibration mode determination unit 105b determines that the vehicle has a vibration whose intensity is greater than or equal to the threshold based on the information indicating the vibration state acquired by the vehicle information acquisition unit 101, a disturbance occurs in the vehicle. It is determined that

The vibration mode determination unit 105b performs leveling of each intensity using a comparison result when the noise intensity, the noise intensity, and the vibration intensity are compared with a preset threshold value. When it is determined that no disturbance has occurred in the vehicle, the vibration mode determination unit 105b determines how much the preset vibration condition is to be reduced based on the level value assigned to each disturbance.
When it is determined that a disturbance has occurred inside and outside the vehicle, the vibration mode determination unit 105b maintains a preset vibration condition.

Next, a hardware configuration example of the navigation device 100b will be described. Note that the description of the same configuration as that of Embodiment 1 is omitted.
The vibration mode determination unit 105b, the in-vehicle situation acquisition unit 111, and the out-of-vehicle situation acquisition unit 112 in the navigation device 100b are processors 100B that execute programs stored in the processing circuit 100A illustrated in FIG. 2A or the memory 100C illustrated in FIG. 2B. It is.

Next, the operation in which the navigation device 100b determines the vibration condition based on the occurrence state of the disturbance will be described. First, the case of considering the generation of noise inside the vehicle and the generation of noise outside the vehicle as disturbance will be described with reference to the flowchart of FIG.
FIG. 10 is a flowchart illustrating the vibration condition determination operation of the navigation device 100b according to the third embodiment.
In FIG. 10, the same steps as those in the flowchart of the first embodiment shown in FIG.

  In step ST4, when the default condition is set, the vibration mode determination unit 105b refers to the in-vehicle situation information acquired by the in-vehicle situation acquisition unit 111, and determines whether noise having an intensity equal to or greater than a threshold is generated. (Step ST51). When noise having an intensity greater than or equal to the threshold is not generated (step ST51; NO), the vibration mode determination unit 105b refers to the vehicle exterior situation information acquired by the vehicle exterior situation acquisition unit 112, and noise having an intensity greater than or equal to the threshold is generated. It is determined whether or not (step ST52). When noise having an intensity greater than or equal to the threshold is not generated (step ST52; NO), the vibration mode determination unit 105b reduces the default condition set in step ST4 according to the noise intensity and the noise intensity, and generates a new vibration. Conditions are determined (step ST53). Thereafter, the navigation device 100b executes the processing from step ST8 to step ST11.

  On the other hand, when noise with an intensity greater than or equal to the threshold is generated (step ST51; YES), or when noise with an intensity greater than or equal to the threshold is generated (step ST52; YES), the navigation device 100b performs steps ST8 to ST11. Execute the process.

In the situation where it is easy for the driver to miss the guidance information by the processing shown in the flowchart of FIG. 10, such as when the noise in the vehicle is large and it is difficult for the driver to drive or when it is difficult to drive due to weather conditions or the like. Thus, it is possible to determine a vibration condition for reliably presenting guidance information necessary for the occupant.
If the driver is more difficult to drive than usual, such as when there is a lot of noise in the vehicle or the weather is bad, the driver's attention will be distracted and the vibration device 201 may vibrate with a low vibration level. It is also assumed that the driver does not notice. In this case, since the vibration mode determination unit 105b maintains the default condition, it is possible to reliably present guidance information necessary for the passenger.

Next, a case where the navigation device 100b considers vibration applied to the vehicle as a disturbance will be described with reference to the flowchart of FIG.
FIG. 11 is a flowchart showing another determination operation of the vibration condition of the navigation device 100b according to the third embodiment.
11, the same steps as those in the flowchart of the first embodiment shown in FIG. 3 are denoted by the same reference numerals, and the description thereof is omitted.
In step ST4, when the default condition is set, the vibration mode determination unit 105b refers to the information indicating the vibration state acquired by the in-vehicle situation acquisition unit 111, and determines whether or not the vibration having the intensity equal to or greater than the threshold value has occurred. Is performed (step ST54).

When the vibration having the intensity higher than the threshold is not generated (step ST54; NO), the vibration mode determination unit 105b reduces the default condition set in step ST4 according to the vibration intensity, and determines a new vibration condition. (Step ST55). Thereafter, the navigation device 100b executes the processing from step ST8 to step ST11.
On the other hand, when the vibration of the intensity | strength more than a threshold-value has generate | occur | produced (step ST54; YES), the navigation apparatus 100b performs the process of step ST8 to step ST11.

  When the vibration applied to the vehicle as a disturbance is large, the driver cannot distinguish whether the vibration is the vibration of the vibration device 201 or the vibration applied to the vehicle as a disturbance. Also in this case, the vibration mode determination unit 105b maintains the default condition by the process shown in the flowchart of FIG. 11, and thus it is possible to reliably present the guidance information necessary for the passenger.

  In the flowcharts of FIGS. 10 and 11, the vibration mode determination unit 105 b includes a process for determining the vibration condition in consideration of the noise in the vehicle and the noise outside the vehicle, and a process for determining the vibration condition in consideration of the vibration of the vehicle. Although described separately, the vibration mode determination unit 105b may determine the vibration condition in consideration of both in-vehicle noise and in-vehicle noise, and vibration to the vehicle at the same time.

Note that the vibration condition may be determined in consideration of the number of times the vehicle has traveled in addition to the above-described disturbance occurrence state. In this case, the above-described in-vehicle situation acquisition unit 111 and the out-of-vehicle situation acquisition unit 112 are additionally provided in the navigation device 100 of the first embodiment illustrated in FIG.
As a result, even at a guidance point with a large number of past travels, if the influence of disturbance is large, the vibration mode determination unit 105b maintains the default condition, so that it is possible to reliably present guidance information necessary for the occupant. .

Next, the operation in which the navigation device 100b determines the vibration condition in consideration of the number of times the vehicle has traveled and the occurrence of disturbance will be described.
FIG. 12 is a flowchart showing another determination operation of the vibration condition of the navigation device 100b according to the third embodiment. FIG. 12 shows the vibration condition determination operation in consideration of the number of times of travel, noise in the vehicle, and noise outside the vehicle.
In FIG. 12, the same steps as those in the flowchart of the first embodiment shown in FIG.
When the processing from step ST1 to step ST6 is performed and it is determined in step ST6 that the number of times of travel is equal to or greater than the threshold (step ST6; YES), the vibration mode determination unit 105b acquires the in-vehicle state acquired by the in-vehicle state acquisition unit 111. With reference to the information, it is determined whether or not noise having an intensity equal to or greater than a threshold value is generated (step ST51). Similarly, the vibration mode determination unit 105b refers to the vehicle exterior situation information acquired by the vehicle exterior situation acquisition unit 112, and determines whether noise having an intensity equal to or greater than a threshold is generated (step ST52).

  When the number of times of travel is greater than or equal to the threshold (step ST6; YES), no noise greater than the threshold is generated (step ST51; NO), and no noise greater than the threshold is generated (step ST52; NO), the vibration mode determination unit 105b reduces the default condition set in step ST4 and determines a new vibration response (step ST56). Thereafter, the navigation device 100b executes the processing from step ST8 to step ST11. In the process of step ST56, the vibration mode determination unit 105b reduces the default condition according to the number of travels, the intensity of noise in the vehicle, and the intensity of noise outside the vehicle.

  On the other hand, when the number of times of travel is less than the threshold value (step ST6; NO), noise having an intensity equal to or greater than the threshold value is generated (step ST51; YES), or noise having an intensity equal to or greater than the threshold value is generated (step ST52). ;)), The navigation device 100b executes the processing from step ST8 to step ST11.

  Note that the navigation device 100b may further consider vibration as a disturbance occurrence state in the flowchart of FIG.

  As described above, according to the third embodiment, the vibration mode determination unit 105b acquires the disturbance information of the vehicle as the driving state of the vehicle, and when the occurrence state of the disturbance inside and outside the vehicle is less than the threshold value, Since it is configured to reduce the vibration conditions set in advance and determine new vibration conditions, it is difficult for the driver to drive due to the occurrence of disturbance, or the driver is difficult to notice the presentation of guidance information. In addition, it is possible to reliably present necessary guidance information for the passenger.

  Further, according to the third embodiment, as vehicle disturbance information, an in-vehicle situation acquisition unit 111 that acquires in-vehicle situation information indicating the occurrence of noise in the vehicle, audio information outside the vehicle is acquired, and the disturbance of the vehicle Since it is configured to include a vehicle outside situation acquisition unit 112 that obtains vehicle outside situation information indicating occurrence of noise outside the vehicle as information, the vibration condition is determined based on the noise inside the vehicle and the noise outside the vehicle. Can do.

  Further, according to the third embodiment, the vehicle information acquisition unit 101 is configured to acquire information indicating a vibration state indicating vibration applied to the vehicle as the disturbance information of the vehicle. Based on this, the vibration conditions can be determined.

Embodiment 4 FIG.
In the fourth embodiment, a configuration is shown in which the vibration condition is determined in accordance with the driver's state.
FIG. 13 is a block diagram illustrating a configuration of the navigation device 100c according to the fourth embodiment.
The navigation device 100c according to the fourth embodiment includes an occupant state acquisition unit 113 instead of the travel history storage unit 106 of the navigation device 100 of the first embodiment shown in FIG. Moreover, it replaces with the vibration mode determination part 105 of the navigation apparatus 100 of Embodiment 1, and is provided with the vibration mode determination part 105c.
In the following, the same or corresponding parts as the components of the navigation device 100 according to the first embodiment are denoted by the same reference numerals as those used in the first embodiment, and description thereof is omitted or simplified.

The occupant state acquisition unit 113 acquires a captured image captured by a camera (not shown) installed in the vehicle, a driver's biological information acquired by a biological information collection device (not shown), and the like.
The occupant state acquisition unit 113 analyzes the captured image and acquires information indicating that the driver is yawning, the driver is drowsy, the driver is asleep, the driver is making a hands-free call, and the like. In addition, the occupant state acquisition unit 113 analyzes the captured image and acquires information indicating the driver's visual recognition operation, such as the driver's visual recognition direction and changes in the driver's viewpoint.
In addition, the occupant state acquisition unit 113 analyzes the biological information and acquires information indicating the driver's fatigue level, the driver's sleepiness, the driver's fever, whether the driver is cold, and the like.

  In addition to the information shown in the first embodiment, the vehicle information acquisition unit 101 includes information indicating vehicle wobble from a network such as CAN, information indicating the continuous driving time of the driver, and the inter-vehicle distance between the host vehicle and the preceding vehicle. , Information indicating the display contents of the display device 202 of the vehicle, and the like are acquired.

The vibration mode determination unit 105c determines the concentration degree of the driver of the vehicle based on the information acquired by the occupant state acquisition unit 113 and the information acquired by the vehicle information acquisition unit 101. The vibration mode determination unit 105c determines the vibration condition based on whether or not the vehicle driver is concentrated.
Specifically, in the vibration mode determination unit 105c, the information acquired by the occupant state acquisition unit 113 includes information that the driver is sleeping, and information that the driver is performing an operation or operation other than driving. In this case, it is determined that the concentration degree of the driver is low. Further, the vibration mode determination unit 105c includes information that the driver gazes at the display screen in the vehicle and information that the driver's viewpoint frequently moves in the information acquired by the occupant state acquisition unit 113. In addition, it is determined that the driver's concentration is low. Further, the vibration mode determination unit 105c, when the information acquired by the occupant state acquisition unit 113 includes information indicating that the driver is tired or the driver is in poor physical condition, the driver's concentration degree Is determined to be low.

  Similarly, when the information acquired by the vehicle information acquisition unit 101 includes information indicating that the continuous driving time of the driver is equal to or longer than the set time, the vibration mode determination unit 105c Judge that concentration is low. Further, the vibration mode determination unit 105c, when the information acquired by the vehicle information acquisition unit 101 includes information indicating that the display screen in the vehicle displays information other than route guidance, Judge that concentration is low.

The vibration mode determination unit 105c determines the driver's concentration degree when it is determined that the driver is concentrated based on the information acquired by the occupant state acquisition unit 113 and the information acquired by the vehicle information acquisition unit 101. Is compared with a preset threshold value for leveling. The vibration mode determination unit 105c determines how much the preset vibration condition is to be reduced based on the level value.
When the vibration mode determination unit 105c determines that the driver is not concentrated, the vibration condition set in advance is maintained.

Next, a hardware configuration example of the navigation device 100c will be described. Note that the description of the same configuration as that of Embodiment 1 is omitted.
The vibration mode determination unit 105c and the occupant state acquisition unit 113 in the navigation device 100c are a processor 100B that executes a program stored in the processing circuit 100A illustrated in FIG. 2A or the memory 100C illustrated in FIG. 2B.

Next, an operation in which the navigation device 100c determines the vibration condition based on the driver's concentration degree will be described.
FIG. 14 is a flowchart showing the vibration condition determination operation of the navigation device 100c according to the fourth embodiment.
In FIG. 14, the same steps as those in the flowchart of the first embodiment shown in FIG.
When the default condition is set in step ST4, the vibration mode determination unit 105c refers to the information acquired by the occupant state acquisition unit 113 and the information acquired by the vehicle information acquisition unit 101, and the driver's concentration degree is equal to or greater than a threshold value. Is determined (step ST61).

  When the driver's concentration degree is equal to or greater than the threshold (step ST61; YES), the vibration mode determination unit 105c reduces the default condition set in step ST4 according to the driver's concentration degree, and determines a new vibration condition. (Step ST62). On the other hand, when the driver's concentration degree is less than the threshold value (step ST61; NO), the navigation device 100c executes the processing from step ST8 to step ST11.

  As described above, according to the fourth embodiment, the occupant state acquisition unit 113 that acquires information indicating the state of the driver is provided, and the vibration mode determination unit 105c indicates the state of the driver as the driving state of the vehicle. When the driver is concentrating on driving with reference to the information, when the driver is concentrating on driving, the pre-set vibration conditions are reduced to determine new vibration conditions. Therefore, it is possible to suppress unnecessary notification to the passenger. On the other hand, when the driver is not concentrated on driving, even guidance information that is easily overlooked can be surely presented to the occupant.

In the fourth embodiment described above, the condition for determining whether the passengers are concentrated may change depending on whether or not the vehicle is in automatic driving. For example, when the vehicle is in automatic driving control, the driver may release his hand from the steering wheel, but may concentrate on driving.
When the vehicle is in automatic driving control, the vibration mode determination unit 105c operates even when the occupant state acquisition unit 113 acquires information indicating that the driver has released his / her hand from the steering wheel of the vehicle. When other information indicating that the person is concentrating on driving is acquired, the vibration mode determination unit 105c determines that the occupant is concentrating.

Note that the configuration described in the above-described fourth embodiment can be applied to the navigation devices 100, 100a, and 100b described in the first to third embodiments.
Thus, for example, even when the driver is not concentrated at a guidance point where the number of past trips is large, the default condition can be maintained and the guidance information necessary for the occupant can be reliably presented.

Embodiment 5. FIG.
In this Embodiment 5, the structure which updates a vibration condition using the operation condition of a vehicle is shown.
FIG. 15 is a block diagram showing a configuration of a navigation device 100d according to the fifth embodiment.
The navigation device 100d according to the fifth embodiment includes an operation status determination unit 114 instead of the travel history storage unit 106 of the navigation device 100 according to the first embodiment shown in FIG. Moreover, it replaces with the vibration mode determination part 105 of the navigation apparatus 100 of Embodiment 1, and is provided with the vibration mode determination part 105d.
In the following, the same or corresponding parts as the components of the navigation device 100 according to the first embodiment are denoted by the same reference numerals as those used in the first embodiment, and description thereof is omitted or simplified.

  The operation status determination unit 114 refers to the guide information generated by the guide information generation unit 103 and the own vehicle position information acquired by the vehicle information acquisition unit 101, and the host vehicle reaches the guide point indicated by the guide information. If not, the operation status of the host vehicle is determined. The operation status determination unit 114 determines whether the vehicle is operating along the guidance information based on the vehicle position information acquired by the vehicle information acquisition unit 101 and the vehicle information acquired from a network such as CAN. The operation status determination unit 114 is a point that needs to be decelerated in advance before reaching the guide point, for example, a left or right turn point, a traffic jam point, or a closed point, but the distance from the current position of the vehicle to the guide point is short, And when a vehicle speed is more than a threshold value, it determines with the vehicle not being operated along guidance information.

  In addition, the operation status determination unit 114 is a point that needs to be decelerated in advance before reaching the guide point, for example, a right or left turn point, a traffic jam point, or a closed point, but the distance from the current position of the vehicle to the guide point is When the vehicle speed is short and the vehicle speed is not decelerated, it is determined that the vehicle is not operated along the guidance information.

  In addition, the operation status determination unit 114 is a point where the lane needs to be changed in advance before reaching the guide point, such as a right or left turn point or an expressway entrance, but the distance from the current position of the vehicle to the guide point is short. When the lane change is not performed, it is determined that the vehicle is not operated along the guidance information.

  When the vibration mode determination unit 105d receives a notification from the operation status determination unit 114 that the vehicle is not operated along the guidance information, the vibration mode determination unit 105d updates the current vibration condition to the default condition. On the other hand, when the vibration mode determination unit 105d receives a notification from the operation status determination unit 114 that the operating vehicle is operating along the guidance information, the vibration mode determination unit 105d reduces the current vibration condition and updates it to a new vibration condition.

Next, a hardware configuration example of the navigation device 100b will be described. Note that the description of the same configuration as that of Embodiment 1 is omitted.
The vibration mode determination unit 105d and the operation state determination unit 114 in the navigation device 100d are a processor 100B that executes a program stored in the processing circuit 100A illustrated in FIG. 2A or the memory 100C illustrated in FIG. 2B.

Next, an operation in which the navigation device 100d updates the vibration condition based on the operation status will be described.
FIG. 16 is a flowchart showing the vibration condition update operation of the navigation device 100d according to the fifth embodiment.
In FIG. 16, the same steps as those in the flowchart of the first embodiment shown in FIG.

  In step ST9, the vibration control unit 107 outputs control information to the vibration device 201. In step ST11, when the output control unit 108 outputs a video signal to the display device 202, the operation status determination unit 114 automatically receives information from the vehicle information acquisition unit 101. Vehicle current position information and vehicle information are acquired (step ST71). The operation status determination unit 114 acquires the guidance information generated immediately before from the guidance information generation unit 103 (step ST72). The operation status determination unit 114 compares the current position information of the host vehicle acquired in step ST71 with the guidance information acquired in step ST72, and determines whether or not the host vehicle has reached the guide point indicated by the guide information. Is performed (step ST73). If the host vehicle has reached the guidance point indicated by the guidance information (step ST73; YES), the process is terminated.

  On the other hand, when the host vehicle has not reached the guidance point indicated by the guidance information (step ST73; NO), the operation status determination unit 114 obtains the current position information and vehicle information obtained in step ST71 and in step ST72. The guide information is collated, and it is determined whether or not the vehicle is operating along the guide information (step ST74). When the vehicle is operating along the guidance information (step ST74; YES), the operation status determination unit 114 notifies the vibration mode determination unit 105d to that effect, and the vibration mode determination unit 105d sets the previously set vibration condition. The vibration condition is reduced and updated (step ST75). On the other hand, when the vehicle is not operated along the guidance information (step ST74; NO), the operation status determination unit 114 notifies the vibration mode determination unit 105d to that effect, and the vibration mode determination unit 105d sets the vibration condition as a default condition. (Step ST76).

  The vibration mode determination unit 105d generates control information for presenting the guidance information generated in step ST3 at the corresponding guidance point under the vibration conditions updated in step ST75 or step ST76 (step ST77). The vibration control unit 107 outputs the control information generated in step ST77 to the vibration device 201 (step ST78), and returns to the process of step ST71.

  In addition to the above-described configuration, the operation status determination unit 114 refers to the driver's line-of-sight direction acquired by the occupant status acquisition unit 113 described in Embodiment 4, and determines whether the operation status is appropriate. Also good. The operation status determination unit 114 determines that the operation status is not appropriate when the driver does not look at the display screen. On the other hand, when the driver frequently confirms the navigation information displayed on the display screen, the operation status determination unit 114 determines that the operation status is appropriate and refers to the vibration condition shown in FIG. Then, the current vibration condition is reduced and updated to a new vibration condition. Here, the operation to check frequently is, for example, an operation of frequently turning the line of sight toward the display screen or performing an operation that can check the next guide point or intersection.

Further, the operation status determination unit 114 refers to the captured image of the driver acquired by the occupant status acquisition unit 113, determines that the operation status is appropriate when the driving tendency is normal, and in FIG. The current vibration condition is reduced by referring to the indicated vibration condition and updated to a new vibration condition. Here, the case where the driving tendency is normal is, for example, a case where the driver is not bowed, is not angry, or is not taking an extremely different behavior.
The operation status determination unit 114 may determine whether the operation status is appropriate with reference to the screen information of the display device 202. The operation status determination unit 114 acquires screen information, and determines that the operation status is not appropriate when acquiring information indicating that a screen other than route guidance is displayed.

As described above, according to the fifth embodiment, after the guidance information is presented based on the control information, the operation status determination unit 114 determines whether or not the vehicle is appropriately operated along the guidance information. The vibration mode determination unit 105d refers to the determination result of the operation status determination unit 114, and reduces the vibration condition determined last time and reduces the vibration condition when the vehicle is appropriately operated along the guidance information. Since it updated so that it may update, when the vehicle is driving | running appropriately along guidance information, presentation of the guidance information which inhibits a driver | operator's driving | operation can be suppressed. Thereby, the calculation amount of the navigation device 100d can be suppressed.
On the other hand, when the vehicle is not operating along the guidance information, the guidance information can be reliably presented to the occupant.

In the navigation devices 100, 100a, 100b, 100c, and 100d shown in the first to fifth embodiments described above, the vibration mode determining units 105, 105a, 105b, 105c, and 105d reduce preset vibration conditions. Thus, a configuration for determining new vibration conditions is shown.
In addition to this configuration, the vibration mode determination units 105, 105a, 105b, 105c, and 105d may be configured to reduce the vibration condition by limiting the passengers presenting vibration among preset passengers.
For example, it is assumed that the vibration device 201 is set in a driver's seat and a plurality of smartphones held by passengers other than the driver. In the vibration mode determination units 105, 105a, 105b, 105c, and 105d, a driver's seat, a plurality of smartphones held by passengers other than the driver are set as default devices, and it is necessary to vibrate from the default devices. Select the occupant's equipment. Thereby, the number of vibration devices 201 to be vibrated is reduced.

  When the guidance point included in the route searched by the route search unit 102 is a curve that causes the occupant's posture to collapse, or a road on which the vehicle body shakes, the route search unit 102 uses the information as vibration mode determination units 105, 105a, 105b, 105c and 105d. The vibration mode determination unit 105 refers to a captured image or the like of a camera (not shown) that captures the inside of the vehicle, and faces an occupant who has not recognized a curve or a road on which the vehicle body is swaying (for example, a sleeping occupant or the back) Occupants). The vibration mode determination units 105, 105a, 105b, 105c, and 105d select only the smartphone of the identified occupant from the default device. Thereby, the vibration mode determination part 105,105a, 105b, 105c, 105d can determine the vibration condition which reduced the passenger | crew who presents a vibration.

  Similarly, when the guide point included in the route searched by the route search unit 102 is a general guide point that only needs to be notified to the driver, the route search unit 102 sends the information to the vibration mode determination unit 105, 105a, 105b, 105c and 105d. The vibration mode determination units 105, 105a, 105b, 105c, and 105d are only the vibration device 201 that presents vibrations to the driver, such as a seat of a driver seat or a vehicle handle, based on information input from the route search unit 102. Select. Thereby, the new vibration condition which reduced the passenger | crew who presents a vibration can be determined.

  If the vibration mode determination unit 105, 105a, 105b, 105c, 105d determines that it is necessary to present vibration to all passengers based on the information input from the route search unit 102, A vibration condition for oscillating all the vibration devices 201 corresponding to each occupant is determined.

  As described above, the vibration mode determination units 105, 105a, 105b, 105c, and 105d reduce the occupants presenting vibrations based on the information input from the route search unit 102, determine the vibration conditions, and depend on the vibrations. Vibration can be presented to a passenger who needs notification. Thereby, for example, the occupant can be ready for shaking of the vehicle body or sudden stop of the vehicle.

In addition to the configuration of the navigation devices 100, 100a, 100b, 100c, and 100d shown in the first to fifth embodiments described above, a plurality of vibration devices 201 are set for one occupant. Alternatively, the vibration device 201 that presents vibration may be limited to determine the vibration condition.
For example, it is assumed that the vibration device 201 that presents vibration to the driver is set to four of a driver seat, a vehicle handle, a wearable device, and a smartphone. The vibration mode determination units 105, 105a, 105b, 105c, and 105d select the vibration device 201 that needs to be vibrated from the set four vibration devices 201. Thereby, the number of vibration devices 201 to be vibrated is reduced. When reducing the number of vibration devices 201 to be vibrated, the vibration mode determination units 105, 105a, 105b, 105c, and 105d select, for example, devices that do not vibrate in order from the vibration device 201 in which the driver hardly feels vibration. Specifically, the vibration mode determination unit 105 limits the vibration device 201 that vibrates in the order of a smartphone, a vehicle handle, a wearable device, and a seat in the driver's seat.

  Note that the vibration mode determination units 105, 105a, 105b, 105c, and 105d do not limit the number of vibration devices 201 to be vibrated when the guidance information should be surely presented to the occupant. The vibration device 201 is vibrated.

  As described above, when a plurality of vibration devices 201 are set for the same occupant, the vibration mode determination units 105, 105 a, 105 b, 105 c, and 105 d limit the vibration devices 201 to vibrate to the occupant. On the other hand, vibration can be excessively presented to inhibit the vehicle from being hindered. In addition, by selecting the devices that do not vibrate in order from the vibration device 201 in which the occupant hardly feels vibration, vibration can be effectively presented to the occupant.

The navigation devices 100 and 100a described in the first embodiment or the second embodiment may acquire information via a server device (not shown).
For example, the travel history storage unit 106 provided in the navigation device 100 of FIG. 1 is provided in the server device. In this case, the server device collects and accumulates the travel history of the host vehicle. The server device collects traveling histories of a plurality of other vehicles other than the own vehicle and accumulates them for each vehicle. As a result, even when the driver gets on a vehicle different from normal at a travel destination, for example, the navigation device 100 can acquire the driver's past travel history from the server device. The indicated information can be presented. Further, even when the in-vehicle device mounted on the vehicle is replaced, the navigation device 100 can acquire the driver's past travel history from the server device, and continuously presents the information presented in the first embodiment. It can be carried out.

  Moreover, the server apparatus is provided with the evaluation information storage unit 110 provided in the navigation device 100a of FIG. In this case, the server device collects and accumulates evaluation information of the own vehicle. The server device collects and accumulates evaluation information of a plurality of other vehicles other than the host vehicle. Thereby, the vibration mode determination unit 105a of the navigation device 100a can determine the vibration mode with reference to the evaluation information of the other vehicle, and it is possible to prevent the default condition from being reduced at a guidance point where everyone is easily mistaken. it can. At this time, the vibration mode determination unit 105a determines the vibration mode in consideration of conditions such as the driving experience, driving skill, and weather of the driver of the other vehicle linked to the evaluation information of the other vehicle acquired from the server device. You may decide.

  In addition to the above, within the scope of the present invention, the present invention can freely combine each embodiment, modify any component of each embodiment, or omit any component of each embodiment. It is.

  Since the navigation device according to the present invention can present guidance information by vibration only to the occupants who need it, the navigation device is applied to a navigation system or the like that is required to reduce the processing load and presents guidance information. This is suitable for suppressing the amount of calculation for the purpose.

  100, 100a, 100b, 100c, 100d Navigation device, 101 Vehicle information acquisition unit, 102 Route search unit, 103 Guide information generation unit, 104 Map information storage unit, 105, 105a, 105b, 105c, 105d Vibration mode determination unit, 106 Travel history accumulation unit, 107 vibration control unit, 108 output control unit, 109 evaluation unit, 110 evaluation information storage unit, 111 in-vehicle situation acquisition unit, 112 out-of-vehicle situation acquisition unit, 113 occupant status acquisition unit, 114 operation status determination unit, 200 Output device, 201 vibration device, 202 display device, 203 voice output device, 300 voice recognition device.

The navigation device according to the present invention includes a vehicle information acquisition unit that acquires vehicle position information, a route search unit that refers to map information and searches for a route based on the position information acquired by the vehicle information acquisition unit, and a route search A guidance information generation unit that generates guidance information for the route searched by the unit, and a vibration mode determination unit that determines a vibration condition for presenting the guidance information generated by the guidance information generation unit to the passenger by vibration based on the driving situation of the vehicle And a vibration control unit that generates control information for presenting the guidance information to the occupant under the vibration condition determined by the vibration mode determination unit, the vibration mode determination unit refers to the driving situation of the vehicle, and If it is determined that the presented vibration can be reduced, it der shall determine a new vibration conditions by reducing the preset vibration condition, the occupant for obtaining information indicating the state of the driver of the vehicle The vibration mode determination unit further includes a state acquisition unit, and when the vehicle is running under automatic driving control, the occupant state acquisition unit is driving the vehicle and the driver is taking his hand off the vehicle handle. If it is determined that the driver is concentrating on driving with reference to the information indicating the other driver's status acquired by the occupant status acquisition unit, the vibration condition set in advance To determine new vibration conditions .

Claims (12)

A vehicle information acquisition unit for acquiring vehicle position information;
A route search unit that refers to map information and searches for a route based on the position information acquired by the vehicle information acquisition unit;
A guidance information generation unit that generates guidance information for the route searched by the route search unit;
A vibration mode determination unit that determines a vibration condition for presenting the guidance information generated by the guidance information generation unit to a passenger by vibration based on a driving situation of the vehicle;
A vibration control unit that generates control information for presenting the guidance information to an occupant under a vibration condition determined by the vibration mode determination unit;
The vibration mode determination unit refers to the driving situation of the vehicle and determines a new vibration condition by reducing the preset vibration condition when it is determined that the vibration to be presented to the occupant can be reduced. Navigation device.   The vibration mode determination unit refers to a travel history of the vehicle as the driving state of the vehicle, and is set in advance when the number of times the vehicle has traveled the route searched by the route search unit is equal to or greater than a threshold value. The navigation apparatus according to claim 1, wherein the new vibration condition is determined by reducing the set vibration condition. The vehicle information acquisition unit acquires time information,
The vibration mode determination unit refers to the time information acquired by the vehicle information acquisition unit as the driving status of the vehicle, and the predetermined vibration is included when the time information is included in a predetermined time zone. The navigation apparatus according to claim 1, wherein the new vibration condition is determined by reducing a condition. An evaluation unit that evaluates whether the occupant has recognized the guidance information presented based on the control information generated by the vibration control unit;
The vibration mode determination unit refers to the evaluation result of the evaluation unit as the driving state of the vehicle, and the evaluation condition set in advance when the evaluation value in the route searched by the route search unit is equal to or greater than a threshold value. The navigation apparatus according to claim 1, wherein the new vibration condition is determined by reducing the frequency.   The vibration mode determination unit acquires disturbance information of the vehicle as a driving situation of the vehicle, and reduces the preset vibration condition when the occurrence situation of the disturbance inside and outside the vehicle is less than a threshold value. The navigation apparatus according to claim 1, wherein the new vibration condition is determined. An in-vehicle situation acquisition unit that acquires audio information in the vehicle and acquires in-vehicle situation information indicating generation of noise in the vehicle as disturbance information of the vehicle;
An outside vehicle condition acquisition unit that acquires sound information outside the vehicle, and acquires outside vehicle condition information indicating generation of noise outside the vehicle as disturbance information of the vehicle;
The vibration mode determination unit refers to the in-vehicle situation information acquired by the in-vehicle condition acquisition unit and the out-of-vehicle condition information acquired by the out-of-vehicle condition acquisition unit, and noise and noise generation conditions inside and outside the vehicle are less than a threshold value. 6. The navigation apparatus according to claim 5, wherein the new vibration condition is determined by reducing the preset vibration condition. The vehicle information acquisition unit acquires information indicating a vibration state indicating vibration applied to the vehicle as disturbance information of the vehicle,
The vibration mode determining unit refers to the information indicating the vibration state acquired by the vehicle information acquisition unit, and reduces the preset vibration condition when the occurrence state of vibration applied to the vehicle is less than a threshold value. The navigation apparatus according to claim 5, wherein the new vibration condition is determined. An occupant state acquisition unit that acquires information indicating the state of the driver of the vehicle;
The vibration mode determination unit refers to information indicating the state of the driver acquired by the occupant state acquisition unit as the driving state of the vehicle, and is set in advance when the driver concentrates on driving. The navigation apparatus according to claim 1, wherein the new vibration condition is determined by reducing the vibration condition.   When the vehicle is running under automatic driving control, the vibration mode determination unit is configured such that the occupant state acquisition unit sets the driving state of the vehicle and the driver is taking his hand off the steering wheel of the vehicle. Even when it is acquired, if it is determined that the driver is concentrating on driving with reference to other information indicating the state of the driver, the preset vibration condition is reduced and the The navigation apparatus according to claim 8, wherein a new vibration condition is determined. After the guidance information is presented based on the control information generated by the vibration control unit, an operation status determination unit that determines whether or not the vehicle is operating along the guidance information,
The vibration mode determination unit refers to the determination result of the operation status determination unit, and updates the vibration condition by reducing the previously determined vibration condition when the vehicle is operated along the guidance information. The navigation device according to claim 1.   The navigation apparatus according to claim 1, wherein the vibration mode determination unit reduces the vibration condition by reducing a target person who notifies the guidance information generated by the guidance information generation unit by vibration.   The navigation according to claim 1, wherein the vibration mode determination unit reduces the vibration condition by reducing a vibration device for notifying the guide information generated by the guide information generation unit by vibration. apparatus.

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