JP6589599B2 - Break guidance device - Google Patents

Description

  The present invention relates to a break guidance device.

  For the purpose of preventing drowsy driving, there has been proposed a technique for giving a stimulus to a vehicle driver or giving a massage stimulus for the purpose of reducing muscle strain. However, due to increased sleep inertia and fatigue accumulation, it is difficult to continue to prevent dozing and to continue to reduce muscle strain (fatigue). For this reason, the driver needs to take a break at an appropriate timing.

  However, the current situation is that the driver does not take a break due to various psychology such as wanting to arrive at the destination early. For this reason, in recent years, various techniques for inducing a break to the driver have been proposed. For example, Patent Document 1 proposes a technique that gives a driver a score that gives a predetermined privilege according to an appropriate stop period during a driving period, and selects a break with a high probability. Patent Document 2 proposes a technique for providing awakening support and guiding the user to a place where the operator can take a break by voice guidance when he / she determines that there is a risk of drowsy driving.

Japanese Patent No. 5185209 JP 2003-123198 A

  However, in the technique of Patent Document 1, when the privilege that can be acquired by the score obtained by the break does not match the user's interest, the motivation for selecting the break cannot be increased, and the break may not be promoted. There is. Moreover, in the technique of patent document 2, since it is only voice guidance by an operator, when sleepiness is eliminated by the provided awakening means, there is a possibility that the rest guidance is not followed.

  As described above, in the conventional technique, it is not always possible to promote the driver's break.

  Therefore, one of the problems of the present invention is to provide a break guidance device that can further promote a driver's break.

  The break guidance device of the present invention determines whether or not the driver has taken a break at a break point based on a detection unit that detects the position of the vehicle and information on the current position of the vehicle detected by the detection unit. A determination unit, an acquisition unit that acquires stimulation data for generating a stimulus when the determination unit determines that the driver has taken a break at a break point, and the stimulation data acquired by the acquisition unit And a stimulus output unit that outputs a stimulus to the driver.

  By the said structure, the probability that a driver | operator takes a break can be raised as an example, and a break can be promoted more.

  In the break guidance device of the present invention, the acquisition unit is based on a travel distance or a travel time from the departure point, the first break point, or the break point where the driver is stimulated to the current break point. The stimulation data or the stimulation data based on the area of the resting point is acquired.

  By this configuration, as an example, the motivation to obtain a stimulus to the driver can be further increased, and thereby a break can be further promoted.

  Further, in the break guidance device of the present invention, the stimulus output unit temporarily outputs the stimulus based on the obtained stimulus data at the break point, thereby allowing the driver to experience the stimulus temporarily, The acquisition unit registers the acquired stimulation data when an instruction to obtain the acquired stimulation data is input from the driver who has temporarily experienced the stimulation, and the stimulation output unit stores the registered stimulation data. Based on the data, a stimulus is output to the driver.

  According to the said structure, the driver | operator can receive the irritation | stimulation of acquisition hope by the temporary experience of irritation | stimulation, and can promote a break more. Moreover, according to the said structure, a resting time can be ensured long by performing the provisional experience of a stimulus, and a driver | operator's fatigue recovery can be aimed at more.

  Moreover, the break guidance device of the present invention further includes an output control unit that guides and outputs information related to stimuli that can be acquired at the break point to the driver.

  According to the said structure, the driver | operator can grasp | ascertain the information regarding the irritation | stimulation which can be acquired in advance at a break point, and can thereby promote a break more. Moreover, according to the said structure, the driving | running plan which considered the break can be made and the negative psychology of the driver | operator with respect to taking a break can be reduced.

  The break induction device according to the present invention may further include a stimulation control unit that outputs the stimulation data to the stimulation output unit, and the determination unit is further based on a traveling state of the vehicle or a situation of the driver. The driver determines whether the driver needs a break, and the stimulus controller outputs the stimulus data to the stimulus output unit when the driver determines that the driver needs a break. .

  According to this configuration, it is possible to prevent a snooze driving and reduce muscle strain at a more appropriate timing.

FIG. 1 is a perspective view showing a state in which a part of a compartment of a vehicle according to the present embodiment is seen through. FIG. 2 is a diagram illustrating an example of the arrangement of the arousal stimulus output device and the massage device according to the present embodiment. FIG. 3 is a block diagram illustrating an example of a break guidance system according to the present embodiment. FIG. 4 is a block diagram showing a functional configuration of the ECU of the present embodiment. FIG. 5 is a diagram illustrating an example of a data structure of the stimulus DB according to the present embodiment. FIG. 6 is a flowchart illustrating an example of a procedure of stimulation data registration processing according to the present embodiment. FIG. 7 is a flowchart illustrating an example of a procedure of stimulus output processing according to the present embodiment. FIG. 8 is a diagram illustrating an example of guidance output according to the present embodiment.

  Hereinafter, an example in which the determination apparatus of the present embodiment is mounted on the vehicle 1 will be described.

  In the present embodiment, the vehicle 1 may be, for example, an automobile (an internal combustion engine automobile) using an internal combustion engine (engine, not shown) as a drive source, or an electric motor (motor, not shown) as a drive source. The vehicle may be a vehicle (electric vehicle, fuel cell vehicle, etc.) or a vehicle (hybrid vehicle) using both of them as drive sources. The vehicle 1 can be mounted with various transmissions, and various devices (systems, components, etc.) necessary for driving the internal combustion engine and the electric motor. In addition, the method, number, layout, and the like of the device related to driving of the wheels 3 in the vehicle 1 can be variously set.

  As shown in FIG. 1, the vehicle body 2 of the vehicle 1 constitutes a passenger compartment 2a in which a driver (not shown) gets. A steering section 4 and the like are provided in the passenger compartment 2a so as to face the driver's seat 2b as a passenger. In the present embodiment, as an example, the steering unit 4 is a steering wheel that protrudes from a dashboard (instrument panel) 12.

  As shown in FIG. 1, in the present embodiment, as an example, the vehicle 1 is a four-wheeled vehicle (four-wheeled vehicle), and includes two left and right front wheels 3F and two right and left rear wheels 3R. Furthermore, in the present embodiment, these four wheels 3 are configured so that any of them can be steered (turnable).

  In addition, a monitor device 11 is provided in the vehicle width direction of the dashboard 12 in the passenger compartment 2a, that is, in the center in the left-right direction. The monitor device 11 is provided with a display device 8 and an audio output device 9. The display device 8 is, for example, an LCD (Liquid Crystal Display), an OELD (Organic Electroluminescent Display), or the like. The audio output device 9 is, for example, a speaker. The display device 8 is covered with a transparent operation input unit 10 such as a touch panel. The occupant can visually recognize an image displayed on the display screen of the display device 8 via the operation input unit 10. The occupant can execute an operation input by touching, pushing, or moving the operation input unit 10 with a finger or the like at a position corresponding to the image displayed on the display screen of the display device.

  As shown in FIG. 2, an imaging device 201 is installed in the handle column 202. The imaging device 201 is, for example, a CCD (Charge Coupled Device) camera or the like. The imaging device 201 is adjusted in view angle and posture so that the face of the driver 302 sitting on the seat 2b of the seat is positioned at the center of the field of view. The imaging device 201 sequentially captures the face of the driver 302 and sequentially outputs image data regarding images obtained by the capturing.

  In addition, as shown in FIG. 2, a wakeful stimulus output device 310a is provided in the pillow portion 2d of the seat. The arousal stimulus output device 310a outputs to the driver 302 a wake-up stimulus for awakening the driver 302 based on stimulus data described later. Here, examples of the arousal stimulus include an olfactory stimulus, an auditory stimulus, a tactile stimulus, and a visual stimulus, but are not limited thereto.

  A massage device 310b is provided in the seat back portion 2c. The massage device 310b massages the driver 302 by vibrating the lower part of the backrest 2c that is in contact with the waist of the driver 302 based on the stimulation data. The arousal stimulus output device 310a and the massage device 310b are examples of a stimulus output unit.

  In addition, arrangement | positioning of the arousal stimulus output apparatus 310a and the massage apparatus 310b is not limited to these, What is necessary is just to be arrange | positioned in the position which can give each irritation | stimulation to the driver | operator 302.

  Next, the rest guidance system which has the rest guidance device in vehicles 1 concerning this embodiment is explained. FIG. 3 is a block diagram showing an example of the configuration of the break guidance system 100 according to the present embodiment. As illustrated in FIG. 3, in the break guidance system 100, in addition to the ECU 14, the monitor device 11, the steering system 13, the distance measuring units 16 and 17, the brake system 18, the steering angle sensor 19, the accelerator sensor 20, the shift A sensor 21, a wheel speed sensor 22, and the like are electrically connected via an in-vehicle network 23 as an electric communication line. The in-vehicle network 23 is configured, for example, as a CAN (Controller Area Network). The ECU 14 can control the steering system 13, the brake system 18, and the like by sending a control signal through the in-vehicle network 23. Further, the ECU 14 detects the torque sensor 13b, the brake sensor 18b, the rudder angle sensor 19, the distance measuring unit 16, the distance measuring unit 17, the accelerator sensor 20, the shift sensor 21, the wheel speed sensor 22, and the like via the in-vehicle network 23. Results, operation signals from the operation input unit, and the like can be received. Here, the ECU 14 is an example of a break guidance device.

  The ECU 14 includes, for example, a CPU 14a (Central Processing Unit), a ROM 14b (Read Only Memory), a RAM 14c (Random Access Memory), a display control unit 14d, an audio control unit 14e, an SSD 14f (Solid State Drive), a flash memory, and the like. ing. The CPU 14a controls the entire vehicle 1. The CPU 14a can read a program installed and stored in a non-volatile storage device such as the ROM 14b and execute arithmetic processing according to the program. The RAM 14c temporarily stores various types of data used in computations by the CPU 14a. In addition, the display control unit 14 d mainly executes image processing using image data obtained by the imaging unit 15, synthesis of image data displayed on the display device 8, and the like among arithmetic processing in the ECU 14. In addition, the voice control unit 14 e mainly executes processing of voice data output from the voice output device 9 among the calculation processes in the ECU 14. The SSD 14f is a rewritable nonvolatile storage unit that can store data even when the ECU 14 is powered off. The CPU 14a, the ROM 14b, the RAM 14c, and the like can be integrated in the same package. Further, the ECU 14 may have a configuration in which another logical operation processor such as a DSP (Digital Signal Processor), a logical circuit, or the like is used instead of the CPU 14a. Further, an HDD (Hard Disk Drive) may be provided instead of the SSD 14f, and the SSD 14f and the HDD may be provided separately from the ECU 14.

  The configuration, arrangement, electrical connection form, and the like of the various sensors and actuators described above are examples, and can be set (changed) in various ways.

  FIG. 4 is a block diagram showing a functional configuration of the ECU 14 of the present embodiment. As shown in FIG. 4, the ECU 14 mainly includes an acquisition unit 401, a determination unit 402, a stimulus control unit 403, an output control unit 404, and a stimulus database 410 (hereinafter referred to as “stimulus DB 410”). I have. Each configuration excluding the stimulus DB 410 shown in FIG. 4 is realized by the CPU 14a configured as the ECU 14 executing a program stored in the ROM 14b. Note that these configurations may be realized by hardware such as an electronic circuit.

  The stimulus DB 410 is a database in which stimulus data of a stimulus to be used is registered. The stimulus DB 410 is stored in the SSD 14f. FIG. 5 is a diagram illustrating an example of a data structure of the stimulus DB 410 of the present embodiment. As shown in FIG. 5, the stimulus ID, the break point, and the stimulus data are registered in association with each other. The stimulus ID is information for identifying the stimulus data. The break point is position information of the break point, and corresponds to, for example, latitude and longitude. The stimulus data is data for outputting a stimulus. In the case of an arousal stimulus, the stimulus data is data such as an olfactory stimulus for awakening, an auditory stimulus, a tactile stimulus, and an output pattern of a visual stimulus. In the case of massage stimulation, the stimulation data is data such as a value indicating the frequency and pressure of vibration. However, these are examples, and the stimulation data is not limited to these.

  The determination unit 402 determines whether or not the driver has taken a break at the break point based on the information on the current position of the vehicle and the stop state of the vehicle. Here, the information on the current position of the vehicle includes the travel distance from the departure point to the current break point, the travel time, the travel distance from the break point where the driver has just rested to the current break point, and the travel time. . The stop state of the vehicle 1 is a state such as where and how long the vehicle 1 is stopped or running by various sensors such as a wheel speed sensor 22, a timer, GPS, and the like. Specifically, the determination unit 402 inputs various detection signals from the various sensors, timers, and GPS, and based on the detection signals, whether or not the vehicle has stopped at a break point for a certain period of time, that is, the driver has a break point. Determine if you are taking a break. Various sensors such as the wheel speed sensor 22, a timer, GPS, and the like are examples of the detection unit.

  Further, the determination unit 402 determines whether or not the vehicle 1 has approached a predetermined fixed distance to the selected and registered break point. Specifically, the determination unit 402 receives various detection signals from the various sensors, timers, and GPS, obtains the current position of the vehicle 1 from the detection signals, and takes a rest point registered in the current position and the stimulus DB 410. By determining whether or not the distance to the position information is equal to or less than a certain distance, it is determined whether or not the distance to the break point is approached by a certain distance.

  The determination unit 402 determines whether the driver needs a break. For example, the determination unit 402 detects the state of the driver and determines whether a break is necessary. Specifically, the determination unit 402 inputs a driver image captured by the imaging device 201. Then, the determination unit 402 analyzes the image of the driver's face in the image and determines the degree of fatigue based on how the driver's eyes are closed, thereby determining whether the driver needs a break. Judgment can be made. The determination unit 402 determines whether or not a break is necessary by inputting various sensors such as the wheel speed sensor 22 and various detection signals from a timer, GPS, and the like to determine the running state of the vehicle 1. Specifically, the determination unit 402 determines the travel distance and travel time from the departure point to the current break point, the travel distance from the first break point to the current break point, the travel time, and the driving based on the detection signal. The travel distance and travel time from the resting point where the driver is stimulated to the current resting point are obtained, and when the travel distance and travel time are equal to or greater than a predetermined threshold, it is determined that the driver needs a break. Can do. Information on the current position of the vehicle detected by various sensors includes the distance traveled from the departure point to the current break point, travel time, distance traveled from the rest point where the driver has just rested to the current break point, and travel. Including time.

  Here, the reason for determining whether or not a break is necessary by determining the travel distance and travel time from the first break point to the current break point is as follows. For example, if the current break is the third break and the driver did not acquire the stimulus during the second break, or if the driver did not receive a temporary stimulus experience during the break, a sufficient break effect could be obtained. It may not be. For this reason, it is determined whether or not a break is necessary based on the travel distance and travel time from the first break point.

  The acquisition unit 401 acquires stimulation data when the determination unit 402 determines that the driving car has taken a break at a break point. Specifically, the acquisition unit 401 downloads (receives) the stimulus data from a server device (not shown) connected to the network.

  In the present embodiment, stimulation data relating to various arousal stimuli and massage stimuli including new types and control patterns are registered in the server device. On the server device, the stimulus data and the location information of the break point are associated in advance. For this reason, the acquisition part 401 downloads stimulation data with the positional information on a corresponding rest point from a server apparatus. When there is an instruction to obtain the acquired stimulus data from the driver, the acquisition unit 401 adds the stimulus ID together with the location information of the break point corresponding to the stimulus data, and registers it in the stimulus DB 410.

  The server device stores stimulus data of different types of stimuli corresponding to the driver's fatigue state and travel state (travel distance and travel time). For this reason, the acquisition unit 401 is based on the driver's fatigue state and traveling state (departure point or first break point or travel distance or travel time from the rest point stimulated by the driver to the current break point). The requested stimulus data is requested from the server device and acquired. As described above, the determination unit 402 determines the travel distance and travel time from the departure point, the first break point, or the break point where the driver is stimulated to the current break point from the various sensors, timers, and GPS. Based on the received data, and sends it to the acquisition unit 401. Further, as described above, the determination unit 402 performs image analysis of the driver's face portion in the captured image acquired from the imaging device 201, determines the degree of fatigue from the degree of the driver's eyes closed, and the like. The determination result is sent to the acquisition unit 401.

  For example, massage stimulation (for example, effective for reducing pain in the buttocks, swelling of the legs) for areas that may feel tension or pain, depending on travel time, travel distance, driver fatigue, etc. Presenting a massage, etc.) can increase the driver's desire to “try”, further increase the probability of selecting a break, and further promote the break.

  The server device also stores stimulus data of different types of stimuli according to the location information of the break point. For example, stimulation data according to the regional characteristics at the break point. For example, when the resting point is Nagano Prefecture, the awakening stimulus of wasabi scent, when the resting point is Hiroshima Prefecture, the awakening stimulus of lemon scent, when the resting point is Aomori Prefecture, each awakening stimulus that imaged nebuta, etc. Providing stimulation data in a limited area. However, it is not limited to these. For this reason, the acquisition part 401 requests | requires and acquires the irritation | stimulation data based on the area where the positional information on a rest point is contained in a server apparatus. In this way, by using the stimulation according to the region or the stimulation limited to the region, the driver can provide fun at the same time, and can further increase the probability of selecting a break.

  In this embodiment, the stimulus data is acquired by downloading from the server device, but the acquisition method is not limited to this. For example, the SSD 14f is locked and stored in advance by a method such as encrypting all stimulation data. Then, the acquisition unit 401 may be configured to acquire stimulation data by unlocking the stimulation data in the locked state by decoding or the like.

  The stimulus control unit 403 receives an input of a destination and one or a plurality of rest points from the operation input unit 10 of the monitor device 11 by the driver, and inputs the input destination and one or a plurality of rest points to the SSD 14f. sign up. The rest point is set according to a driver's instruction at a timing such as before traveling at the departure point, during traveling, and when stopping at the rest point.

  It should be noted that the travel state such as travel time and travel distance and the driver's state are determined by the determination unit 402 as described above, and a break point is automatically set based on the determination result, or the driver already The stimulus control unit 403 may be configured to perform resetting such as adding a resting point to the route where the resting point is set.

  When the determination unit 402 determines that the driver needs a break, the stimulation control unit 403 outputs the stimulation data registered in the stimulation DB 410 to the awake stimulation output device 310a and the massage device 310b. The stimulus control unit 403 selects and outputs the stimulus data sequentially or arbitrarily from the stimulus data registered in the stimulus DB 410, or selects the stimulus data corresponding to the position close to the current position of the vehicle 1. However, the present invention is not limited to this.

  The stimulus control unit 403 temporarily outputs the stimulus data just acquired by the acquisition unit 401 to the awake stimulus output device 310a and the massage device 310b during the break at the break point. Thereby, the driver | operator can provisionally experience the stimulus of the stimulus data acquired by taking a break. For example, while the driver arrives at the service area at the break point and the driver goes to the toilet or the like, the stimulation data is downloaded, and when returning from the toilet, the arousal stimulation output device 310a or the massage device 310b temporarily stimulates. By outputting, the driver can temporarily experience the acquired stimulus.

  The output control unit 404 displays information on the stimulus that can be acquired at the rest point in the travel route to the destination on the display device 8 of the monitor device 11 or outputs the information to the voice output device 9 as a voice signal. Information on stimuli that can be acquired with the guide is output to the driver. Here, the information regarding the stimulus that can be acquired at the break point may be acquired in advance from a server device or the like and stored in the SSD 14f. The information on the stimulus is, for example, the type of stimulus such as massage stimulus or arousal stimulus, the content of the specific stimulus, the location information of the break point corresponding to the stimulus data, etc., but is not limited thereto. is not.

  For example, the output control unit 404 displays information on stimuli that can be acquired when the vehicle is at a resting point in the route to the destination at the departure point of the vehicle on the display device 8, and outputs the information to the audio output device 9. . Further, when the output control unit 404 determines that the vicinity of the rest point is approached by the determination unit 402, that is, when it is determined that a certain distance has been approached to the rest point, the output control unit 404 takes a break at the rest point. Information about the stimuli that can be acquired is displayed on the display device 8 and output to the audio output device 9 as audio. The output control unit 404 also displays on the display device 8 information related to stimuli that can be acquired when taking a break at a break point in the route from the current break point to the destination when taking a break at the break point. The sound is output to the sound output device 9.

  In addition, when the determination unit 402 determines that the driver needs a break as described above, the stimulation control unit 403 outputs stimulation data to give the driver a stimulus, and the output control unit 404 The resting point in the vicinity of the traveling vehicle 1 is displayed on the display device 8 together with information on the acquirable stimulus, and is output to the audio output device 9 by voice.

  Next, stimulation data registration processing by the break guidance system of the present embodiment configured as described above will be described. FIG. 6 is a flowchart illustrating an example of a procedure of stimulation data registration processing according to the present embodiment. In the example shown below, it is assumed that the vehicle 1 travels on an expressway, and as a resting point, a service area (SA) or a parking area (PA) provided on the expressway will be described as an example. .

  Stimulus data registration processing is performed in some break guidance programs of the navigation system executed by the break guidance device of the present embodiment. First, the driver inputs a destination from the operation input unit 10 or the like of the monitor device 11 at the departure point. The stimulus control unit 403 sets and registers the destination input from the driver in the SSD 14f (S11).

  The output control unit 404 displays on the display device 8 of the monitor device 11 information regarding one or more rest points in the travel route from the departure point to the set destination and the stimuli that can be acquired at each rest point. Then, by outputting a voice to the voice output device 9, information on the stimulus that can be acquired at the break point is guided to the driver (S12).

  FIG. 8 is a diagram illustrating an example of stimulus guidance display at a break point in the present embodiment. As shown in FIG. 8, a rest point in the travel route and the types and contents of stimuli that can be acquired at the rest point are displayed for guidance.

  The driver refers to the screen shown in FIG. 8 and uses the operation input unit 10 to select one or a plurality of rest points by a stimulus or the like desired to be acquired. The stimulus control unit 403 sets and registers the selected one or more rest points in the SSD 14f. Then, the vehicle 1 starts traveling to the destination.

  While the vehicle 1 is traveling, the determination unit 402 determines whether or not the vehicle 1 has approached a predetermined distance to the selected break point (S13). When the vehicle 1 approaches the rest point by a certain distance (S13: Yes), the output control unit 404 displays information on the stimulus that can be acquired when resting at the rest point on the display device 8, Guidance is provided by outputting a voice to the voice output device 9 (S14). On the other hand, if the vehicle 1 has not yet approached the resting point by a certain distance in S13 (S13: No), the output control unit 404 does not display information on the stimulus.

  Then, the determination unit 402 determines whether or not the vehicle 1 has stopped and the driver has rested (S15). The determination unit 402 determines that the driver is resting when the vehicle 1 is in a stopped state for a certain period of time based on detection signals from various sensors. When it is determined that the driver is not taking a break (S15: No), the process returns to S13.

  When it is determined that the driver is taking a break (S15: Yes), the acquisition unit 401 downloads and acquires stimulation data corresponding to the break point from the server device (S16).

  Next, the stimulus control unit 403 temporarily outputs the acquired stimulus data to the wakeful stimulus output device 310a or the massage device 310b, so that the wakeful stimulus output device 310a or the massage device 310b temporarily sends each stimulus to the driver. (S17). Thereby, the driver | operator can experience temporarily the stimulus of the stimulus data acquired by resting at a rest point.

  The driver determines whether or not to use the stimulus of the stimulus data acquired from the result of the provisional experience of the stimulus, and if so, instructs the operation input unit 10 to obtain the stimulus. On the other hand, when the driver does not wish to use the stimulus, the driver gives an instruction not to obtain the stimulus.

  The acquisition unit 401 determines whether or not there is an instruction to obtain a stimulus from such a driver (S18). And when there is no acquisition instruction | indication (S18: No), a process returns to S13. On the other hand, when there is an acquisition instruction (S18: Yes), the acquisition unit 401 registers the acquired stimulation data together with a break point corresponding to the stimulation DB 410 (S19).

  In this embodiment, after the stimulus data is acquired, the driver has a provisional experience of stimulation, and is registered in the stimulus DB 410 according to the driver's request for acquisition. The acquisition unit 401 may be configured to register immediately without performing it.

  And the process from said S13 to S19 is repeatedly performed until the vehicle 1 arrives at the destination (S20: No). When the vehicle 1 arrives at the destination (S20: Yes), the process ends.

  Next, the stimulus output process of this embodiment will be described. FIG. 7 is a flowchart illustrating an example of a procedure of stimulus output processing according to the present embodiment. This stimulus output process is executed in parallel with the stimulus data registration process shown in FIG.

  The determination unit 402 detects the traveling state of the vehicle 1 and the state of the driver at regular time intervals while the vehicle 1 is traveling (S41). The determination unit 402 detects the traveling state of the vehicle 1 based on detection signals from various sensors. Further, the determination unit 402 detects the state of the driver based on the image analysis of the captured image of the driver by the imaging device 201 as described above.

  The determination unit 402 determines whether the driver needs a break from the traveling state of the vehicle 1 and the driver's state (S42). If it is determined that no break is necessary (S42: No), the process returns to S41.

  On the other hand, when it is determined that a break is necessary (S42: Yes), the stimulus control unit 403 outputs the stimulus data registered in the stimulus DB 410 to the arousal stimulus output device 310a or the massage device 310b. Then, the arousal stimulus output device 310a or the massage device 310b gives the driver a stimulus based on the stimulus data (S43). At this time, the output control unit 404 may further display a resting point in the vicinity of the running vehicle 1 together with information on the acquirable stimulus on the display device 8 and output the sound to the audio output device 9. .

  Next, the output control unit 404 acquires information on a stimulus that can be acquired at a resting point within a certain range from the current point by transmitting the position information of the current point to the server device. Alternatively, information on stimuli that can be obtained at a resting point within a certain range from the current point is acquired from among the stimuli data in the locked state already stored in the SSD 14f. Then, the output control unit 404 displays information on stimuli that can be acquired at a resting point within a certain range (near) from the current point on the display device 8 and outputs the information to the voice output device 9 as a guide. (S44). The output control unit 404 displays information related to stimuli that can be acquired at a resting point within a certain range from the current point, for example, in a form as shown in FIG.

  And the process from said S41 to S44 is repeatedly performed until the vehicle 1 arrives at the destination (S45: No). When the vehicle 1 arrives at the destination (S45: Yes), the process ends.

  As described above, in this embodiment, each time the driver takes a break at the break point, the data of the awakening stimulus and the massage stimulus can be acquired. Therefore, the probability that the driver takes a break is increased and the break is further promoted. Can do. That is, for the purpose of preventing a drowsy driving, a technique for giving a stimulus to a vehicle driver or giving a massage stimulus for the purpose of reducing muscle strain has been proposed. However, due to increased sleep inertia and fatigue accumulation, it is difficult to continue to prevent dozing and to continue to reduce muscle strain (fatigue). For this reason, it is necessary for the driver to take a break at an appropriate timing, but the probability of selecting a break is low from various psychology such as wanting to arrive at the destination early. In this embodiment, every time the driver takes a break at the rest point, the data of various awakening stimuli and massage stimuli is acquired. Therefore, if the driver takes a rest at the rest point, the driver can receive various stimuli. Motivation for a break that can be done. For this reason, according to this embodiment, it is possible to cause the driver to select a break with a high probability, thereby further promoting the break.

  Further, in the present embodiment, the acquisition unit 401 is stimulation data based on the travel distance or travel time from the departure point, the first break point, or the break point where the driver is stimulated to the current break point, or the break point. Since the stimulation data based on the area is acquired, it is possible to further increase the motivation for the driver to obtain the stimulation, thereby further promoting the break.

  In particular, in this embodiment, the stimuli that can be acquired by taking a break leads to driving assistance that many drivers desire during driving, such as awakening stimulation and massage stimulation. And the probability of selecting a break can be increased, thereby further promoting the break.

  In the present embodiment, the stimulus control unit 403 temporarily outputs a stimulus based on the acquired stimulus data at the break point, thereby causing the driver to experience the stimulus temporarily, and the acquisition unit 401 temporarily outputs the stimulus. The acquired stimulus data is registered when an instruction to obtain the acquired stimulus data is input from the experienced driver. For this reason, according to the present embodiment, the driver can receive the stimulus desired to be obtained by the provisional experience of the stimulus, and can further promote the break. In addition, according to the present embodiment, by executing the provisional experience of stimulation, it is possible to ensure a longer rest time, and to further improve the driver's fatigue.

  Further, in the present embodiment, the output control unit 404 displays information on the stimulus that can be acquired at the break point in the route to be traveled on the display device 8 during the break at the departure point, running, and rest point, A voice is output to the voice output device 9 to guide the driver. For this reason, according to the present embodiment, the driver can grasp in advance information related to the stimulus that can be acquired at the break point, thereby further promoting the break. In addition, according to the present embodiment, it is possible to promote the selection of a break point in advance in the route planned to be traveled in advance, thereby making it possible to make a travel plan that takes a break into consideration. Negative psychology can be reduced.

  In the present embodiment, the determination unit 402 determines whether the driver needs a break based on the traveling state of the vehicle 1 or the driver's situation, and the stimulation control unit 403 determines whether the driver has a break. When it is determined to be necessary, the stimulation data is output, and the arousal stimulation output device 310a or the massage device 310b outputs each stimulation. Therefore, at a more appropriate timing, it is possible to prevent sleep driving and reduce muscle strain. It becomes possible.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the present embodiment, it is assumed that the vehicle 1 travels on an expressway, and as a resting point, a service area (SA) or a parking area (PA) provided on the expressway is taken as an example. It is not limited to this, but can be applied to general roads. It is also possible to apply the present invention by getting down from a highway to a general road and using any point on the general road as a resting point.

1 Vehicle 14 ECU
310a Arousal stimulus output device 310b Massage device 401 Acquisition unit 402 Determination unit 403 Stimulus control unit 404 Output control unit 410 Stimulus DB

Claims (5)

A detection unit for detecting the position of the vehicle;
A determination unit that determines whether the driver has taken a break at a break point based on information on the current position of the vehicle detected by the detection unit;
An acquisition unit for acquiring stimulation data for generating a stimulus when the determination unit determines that the driver has taken a break at a break point;
A stimulus output unit that outputs a stimulus to the driver based on the stimulus data acquired by the acquisition unit;
Break induction device with The acquisition unit may be the departure point, the first break point, or the stimulation data based on the travel distance or travel time from the break point where the driver is stimulated to the current break point, or the area of the break point. Obtaining said stimulation data based on
The break guidance device according to claim 1. The stimulus output unit temporarily outputs the stimulus based on the acquired stimulus data at the break point, thereby causing the driver to experience the stimulus temporarily,
The acquisition unit registers the acquired stimulus data when an instruction to obtain the acquired stimulus data is input from the driver who has temporarily experienced the stimulus,
The stimulus output unit outputs a stimulus to the driver based on registered stimulus data.
The break guidance device according to claim 1 or 2. An output control unit that outputs information on the stimulus that can be acquired at the break point to the driver,
The break induction device according to any one of claims 1 to 3, further comprising: A stimulus controller that outputs the stimulus data to the stimulus output unit;
The determination unit further determines whether or not the driver needs a break based on the driving state of the vehicle or the driver's situation,
When the determination unit determines that the driver needs a break, the stimulation control unit outputs the stimulation data to the stimulation output unit.
The rest guidance apparatus according to any one of claims 1 to 4.

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