JP2015093568A - On-vehicle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve convenience when operation of an on-vehicle device is performed during traveling, without deteriorating safety.SOLUTION: A navigation device makes operation with respect to an own device or an ECU and a portable appliance capable of communicating with the own device valid (OFF of travel enforcement) during stopping of the own vehicle (S145). On the other hand, during traveling of the own vehicle, when a driver looks at a front direction, the device makes the operation valid (S145), and when the driver does not look at the front direction, the device makes the operation valid until duration time of the state reaches constant time (S145). When the duration time reaches the constant time, the device makes the operation invalid (ON of travel enforcement) (S130).

Description

  The present invention relates to an in-vehicle device that enables or disables an operation depending on whether or not the driver is viewing the front.

  2. Description of the Related Art Conventionally, a navigation device, audio, and the like mounted on a vehicle have a function of forced driving that invalidates an operation while the host vehicle is traveling for safety. As a result, the driver cannot operate the navigation device or the like while traveling, and safety can be improved.

  However, when driving compulsion is provided, not only the driver but also the passenger cannot operate the navigation device or the like during driving, which is inconvenient. On the other hand, a navigation device or the like that releases traveling forcing by simultaneously operating two switches provided on a handle is known.

  In addition to this, in a vehicle equipped with an automatic tracking system that causes the vehicle to travel following the preceding vehicle, it is known to cancel the driving compulsion when performing automatic tracking to the preceding vehicle ( Patent Document 1). Thereby, the convenience at the time of using a navigation apparatus etc. can be improved, ensuring safety | security.

JP 2009-113602 A

  However, since automatic tracking is performed only when there is a preceding vehicle or the like, there are very limited cases in which traveling compulsion is canceled during traveling, which is convenient when using a navigation device or the like. The sex could not be improved sufficiently.

  The present invention has been made in view of the above problems, and an object of the present invention is to improve convenience when operating a vehicle-mounted device or the like while traveling without sacrificing safety.

  The in-vehicle device according to claim 1, which has been made in view of the above problems, includes a driver determination unit (S <b> 110) that determines whether or not the driver is viewing the front of the host vehicle, and whether or not the host vehicle is traveling. Own vehicle determining means (S100) for determining whether or not the vehicle is inside. When it is determined that the host vehicle is stopped, the operation of the host device or another device that can communicate with the host device is in an effective state, and when the host vehicle is determined to be running. Comprises setting means (S130, S145) for enabling or disabling the operation based on the determination result by the driver determination means.

  Then, when it is determined that the host vehicle is traveling, the setting unit determines that the operation is valid when the driver determination unit determines that the driver is viewing the front of the host vehicle. It is characterized by this.

  In this way, even when the host vehicle is traveling, if the driver is viewing the front and it is assumed that safe driving is being performed, it is possible to connect to an in-vehicle device mounted on the host vehicle. Operation becomes possible.

  For this reason, even if it is driving | running | working, the passenger can operate a vehicle-mounted apparatus etc. if it is a simple thing which can visually recognize the front, and a driver can also operate a vehicle-mounted apparatus. Therefore, the convenience at the time of operating the vehicle-mounted device or the like can be enhanced without sacrificing safety.

  Furthermore, while the host vehicle is traveling, the operation of another ECU that communicates with the in-vehicle device or a mobile device such as a smartphone can be invalidated depending on whether or not the driver is looking forward. For this reason, it is possible to prevent the driver from operating the portable device while traveling, and safety can be improved.

  In addition, the code | symbol in the parenthesis described in this column and a claim shows the correspondence with the specific means as described in embodiment mentioned later as one aspect, Comprising: The technical scope of this invention is shown. It is not limited.

It is a block diagram which shows the structure of a navigation apparatus. It is a flowchart of a forced running process. It is explanatory drawing of the operation screen of the navigation apparatus in driving compulsion OFF, and the operation screen of the navigation apparatus in driving compulsion ON.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiment of the present invention is not limited to the following embodiment, and can take various forms as long as they belong to the technical scope of the present invention.

[Description of configuration]
The navigation device 10 of the present embodiment includes a position detector 11, a vehicle speed sensor 12, a camera 13, a PKB sensor 14, a control unit 15, a storage unit 16, a display unit 17, a voice output unit 18, an operation unit 19, and an in-vehicle LAN communication unit. 20 and a wireless communication unit 21 (FIG. 1).

The position detector 11 is configured to detect the current location of the host vehicle, and includes a GPS receiver 11a, a gyro sensor 11b, an acceleration sensor 11c, and the like.
The GPS receiver 11a receives a signal from an artificial satellite for GPS via a GPS antenna (not shown) to detect the position, direction, speed, etc. of the own vehicle, and the gyro sensor 11b is a rotational motion applied to the own vehicle. Detect the size of. The acceleration sensor 11c detects the acceleration in the front-rear direction of the host vehicle. Since these have errors of different properties, they are configured to be used while complementing each other.

The vehicle speed sensor 12 is a part that detects the vehicle speed of the host vehicle.
The camera 13 includes a light projecting unit that projects infrared rays toward the driver's face of the host vehicle, and is a part that photographs the driver's face.

The PKB sensor 14 is a sensor that detects the state of the parking brake (PKB) of the host vehicle.
The storage unit 16 is configured from a non-volatile storage medium such as an HDD, a flash memory, or a DVD, and is a part in which various data such as a map DB is stored.

The display unit 17 is configured as a liquid crystal display, for example, and displays various images according to instructions from the control unit 15.
The sound output unit 18 is configured as a speaker or the like, and outputs various sounds according to instructions from the control unit 15.

The operation unit 19 is configured as a key switch, a touch panel, or the like, and accepts various operations from a driver, a passenger, or the like.
The in-vehicle LAN communication unit 20 is a part that communicates with another ECU 40 connected to the in-vehicle LAN 30 via the in-vehicle LAN 30 compliant with a standard such as CAN.

  In addition, the wireless communication unit 21 is a part that performs wireless communication with a mobile device 50 configured as a smartphone or the like through a communication standard such as a wireless LAN or BlueTooth (registered trademark) via an antenna (not shown).

  The control unit 15 includes a CPU, a ROM, a RAM, an I / O, and the like. The control unit 15 reads and executes a program stored in the ROM or the storage unit 16 and controls the navigation device 10 in an integrated manner.

This program includes a vehicle position specifying unit 15a, a line-of-sight detection unit 15b, a driving scene specifying unit 15c, a driving forced determination unit 15d, and the like.
The vehicle position specifying unit 15 a specifies the current location of the host vehicle based on the detection result by the position detector 11.

The line-of-sight detection unit 15b is a part that analyzes the driver's face image taken by the camera 13 and detects the driver's line-of-sight direction.
In addition, the driving scene specifying unit 15c accesses the map DB stored in the storage unit 16, and specifies the road section in which the host vehicle is traveling based on the current location and map data specified by the vehicle position specifying unit 15a. To do.

  Further, the traveling forcing determination unit 15d determines the traveling state of the host vehicle (whether the host vehicle is traveling) based on the detection results of the vehicle speed sensor 12 and the PKB sensor 14. Then, based on the determination result, the driver's line-of-sight direction, the road section in which the host vehicle is traveling, and the like, the operation on the navigation device 10, another ECU 40, and the portable device 50 is validated or invalidated.

[Description of operation]
Next, the operation of the navigation device 10 will be described.
The navigation device 10 is configured to display a map image around the host vehicle, route guidance, search for various facilities, and the like in accordance with an operation from a driver or the like.

  In addition to this, based on the traveling state of the host vehicle, the driver's line-of-sight direction, the traveling location of the host vehicle, etc., an operation to the host device or another ECU 40 or portable device 50 that can communicate with the host device is performed. It has a function of running forcing to be valid or invalid.

Specifically, when the host vehicle is stopped, the forcing of travel is turned off, and the operation on the own device or the like is enabled.
On the other hand, when the host vehicle is traveling, when the driver is viewing the front of the host vehicle, the forcing of driving is turned off, and the operation on the host device is enabled. However, if the driver is not visually recognizing the front of the host vehicle, whether the operation on the own device or the like is to be effective according to the travel location of the host vehicle or the duration of the state in which the driver is not viewing the front It is determined whether to invalidate (running compulsory ON / OFF).

  Below, the forced running process which validates or invalidates operation with respect to an own apparatus etc. according to the running state etc. of the own vehicle is demonstrated using the flowchart as described in FIG. This process is a process periodically executed by the control unit 15 of the navigation device 10.

In S100, the control unit 15 determines whether or not the host vehicle is stopped based on signals from the vehicle speed sensor 12 and the PKB sensor 14.
Specifically, when it is detected from the signal from the vehicle speed sensor 12 that the vehicle speed is less than 5 km / h, or when it is detected from the signal from the PKB sensor 14 that the PKB is in operation. It is determined that the host vehicle is stopped.

  Then, when an affirmative determination is obtained (S100: Yes), the control unit 15 shifts the process to S145, and when a negative determination is obtained (S100: No), the control unit 15 shifts the process to S105. .

In S105, the control unit 15 analyzes the driver's face image captured by the camera 13 to detect the driver's line-of-sight direction, and the process proceeds to S110.
In S110, the control unit 15 determines whether the driver is viewing the front of the host vehicle based on the driver's line-of-sight direction.

  Specifically, for example, the horizontal and vertical angles between the reference direction from the viewpoint of the driver toward the front direction of the host vehicle and the line of sight of the driver are measured, and these angles are equal to or less than a predetermined threshold value. In this case, the driver may be regarded as viewing the front of the host vehicle.

  Then, when an affirmative determination is obtained (S110: Yes), the control unit 15 shifts the process to S145, and when a negative determination is obtained (S110: No), the control unit 15 shifts the process to S115. .

  Note that the control unit 15 is not limited to the driver's line-of-sight direction, and for example, analyzes the driver's face image to detect the driver's face direction, and the driver visually recognizes the front of the host vehicle based on the face direction. It may be determined whether or not.

  In S115, the control unit 15 specifies the current location of the host vehicle by the position detector 11, accesses the map DB stored in the storage unit 16, and based on the current location and the map data, the road section that is running Specify the type of.

  In subsequent S120, the control unit 15 provides a sideward driving prohibition section (for example, an intersection, a curve, a signal, a pedestrian crossing, etc.) in which the driving road section is desired to be driven while the driver visually recognizes the front of the host vehicle. It is determined whether or not it is a point that has been received, a junction point of an expressway, or the like. When an affirmative determination is obtained (S120: Yes), the process proceeds to S125, and when a negative determination is obtained (S120: No), the process proceeds to S135.

In S125, the control unit 15 turns on the driving compulsion and invalidates the operation to the own device or another ECU 40 or the portable device 50 that can communicate with the own device.
Specifically, the operation to the own device may be invalidated, and another ECU 40 or the portable device 50 may be instructed to invalidate the operation via the in-vehicle LAN 30 or wireless communication. In addition, it is good also as a structure which invalidates only one part operation except the simple operation which can be performed in the state which visually recognized the front of the own vehicle among the operations with respect to the own apparatus.

In subsequent S <b> 130, the control unit 15 notifies that the driving compulsion is turned on via the display unit 17 and the audio output unit 18.
Specifically, for example, when a touch panel is used as the operation unit 19, the operation screen 200 when the operation is valid displayed on the screen of the display unit 17 covered by the touch panel is invalidated. It may be changed to the operation screen 210 when the operation is disabled by changing the color of the buttons 201 to 206 (see FIG. 3).

  This can prompt the driver to pay attention to the front of the host vehicle. In addition, it is possible to clarify that the operation of the buttons 211 to 216 on the operation screen 210 has become invalid.

  On the other hand, in S135 which is shifted when the own vehicle is not traveling in the side-by-side driving prohibited section, the control unit 15 measures the duration of the state where the driver is not viewing the front of the own vehicle. If the duration has reached a predetermined determination time (S140: Yes), the process proceeds to S125. If not (S140: No), the process proceeds to S145.

The control unit 15 may detect a traveling environment around the host vehicle and set a determination time according to the traveling environment.
Specifically, for example, the distance between an obstacle such as a vehicle existing in front of the host vehicle and the host vehicle is measured via a radar or a camera (not shown), and the determination time is shortened when the distance is short. In addition, when the distance is long, the determination time may be lengthened.

  In addition, for example, other vehicles and pedestrians existing around the host vehicle are detected via a radar and a camera (not shown), and when other vehicles are present, the determination time is shortened. The determination time may be lengthened.

In subsequent S145, the forcible driving is turned off, the operation of the own device or another ECU 40 or the portable device 50 that can communicate with the own device is validated, and this processing is terminated.
Specifically, the operation to the own device may be validated, and the other ECU 40 or the portable device 50 may be instructed to validate the operation via the in-vehicle LAN 30 or wireless communication.

In addition, you may alert | report that driving | running | working forced became OFF via the display part 17 or the audio | voice output part 18 at this time.
Specifically, for example, when a touch panel is used as the operation unit 19, the operation screen 210 when the operation is invalid displayed on the screen of the display unit 17 is changed to the operation screen 200 when the operation is valid. (See FIG. 3).

[effect]
According to the navigation device 10 of the present embodiment, even when the host vehicle is traveling, when the driver is viewing the front, the navigation device 10 or another ECU 40 connected to the navigation device 10 or a portable device Operation to the device 50 is possible. For this reason, the convenience at the time of operation of the navigation apparatus 10 etc. can be improved, without impairing safety.

  Further, when the driver does not visually recognize the front, the operation to the navigation device 10 or the like is made valid until the duration of the state in which the driver does not visually recognize the front reaches the determination time, and the duration reaches the determination time. Then, the operation becomes invalid.

  For this reason, the driver can operate toward the navigation device 10 or the like for a short time during traveling, and can perform a simple operation on the navigation device 10 or the like even during traveling. Can do. Therefore, the convenience at the time of operating navigation device 10 etc. can be improved, without impairing safety.

  In addition, when the host vehicle is traveling in a sideways driving prohibited section, the operation of the navigation device 10 or the like is invalid regardless of the duration of the state in which the driver is not viewing the front. For this reason, safety can be improved.

[Other Embodiments]
(1) In the present embodiment, the navigation device 10 is illustrated as an example of the travel compulsion ON / OFF based on the travel state of the host vehicle, whether the driver is viewing the front of the host vehicle, the travel location of the host vehicle, and the like. A specific example of the present invention for performing OFF has been described.

However, the present invention can be applied not only to the navigation device 10 but also to various in-vehicle devices, and the same effect can be obtained even in such a case.
In such a case, the in-vehicle device to which the present invention is applied communicates with the navigation device via the in-vehicle LAN or the like, and determines whether or not the host vehicle is traveling in the sideways driving prohibited section. Can be considered.

  In addition, when the present invention is applied to an in-vehicle device that is not operated during traveling, the in-vehicle device is in a traveling state of the own vehicle only for other ECUs or portable devices that can communicate with the in-vehicle device. You may enable / disable the corresponding operation. Even in such a case, the same effect can be obtained.

(2) Moreover, the navigation apparatus 10 of this embodiment and the vehicle-mounted apparatus to which this invention was applied may be comprised as an apparatus for managing driving | running | working of a business vehicle.
In such a case, the driver can perform simple operations such as recording of a travel history necessary for business even while the host vehicle is traveling, thereby improving business efficiency. it can.

  (3) Moreover, the navigation apparatus 10 of this embodiment invalidates operation of the navigation apparatus 10 etc. during driving | running | working of the sideward driving prohibition area of the own vehicle, when the driver has not visually recognized ahead.

  However, the navigation device 10 may unconditionally invalidate the operation of the navigation device 10 or the like while traveling in the armpit driving prohibited section. Thereby, safety can be further improved.

[Correspondence with Claims]
The correspondence between the terms used in the description of the above embodiment and the terms used in the description of the claims is shown.

  S100 of the forced travel process corresponds to the own vehicle determination means, S110 corresponds to the driver determination means, S120 corresponds to the travel determination means, and S130, S140, and S145 correspond to the setting means.

  DESCRIPTION OF SYMBOLS 10 ... Navigation apparatus, 11 ... Position detector, 12 ... Vehicle speed sensor, 13 ... Camera, 14 ... PKB sensor, 15 ... Control part, 16 ... Memory | storage part, 17 ... Display part, 18 ... Audio | voice output part, 19 ... Operation part 20 ... In-vehicle LAN communication unit, 21 ... Wireless communication unit, 30 ... In-vehicle LAN, 40 ... ECU, 50 ... Portable device.

Claims (3)

Driver determination means (S110) for determining whether or not the driver is viewing the front of the host vehicle;
Own vehicle determination means (S100) for determining whether the own vehicle is running or stopped;
When it is determined that the host vehicle is stopped, an operation on the host device or another device that can communicate with the host device is in an effective state, and when the host vehicle is determined to be running. Comprises setting means (S130, S145) for making the operation valid or invalid based on the determination result by the driver determination means,
In the case where it is determined that the host vehicle is traveling, the setting unit determines that the operation is effective when the driver determination unit determines that the driver is viewing the front of the host vehicle. State,
In-vehicle device characterized by The in-vehicle device according to claim 1,
The setting means determines that the driver is in front of the host vehicle when the driver determines that the driver is not traveling and the driver determining means determines that the driver is not viewing the front of the host vehicle. If the duration of the state in which the user is not visually confirming has not reached a predetermined time, the operation is in a valid state; otherwise, the operation is in an invalid state (S140).
In-vehicle device characterized by The in-vehicle device according to claim 2,
The vehicle further comprises travel determination means (S120) for determining whether or not the driver is traveling in an armpit driving prohibition section in which the driver wants to drive in a state in which the driver sees the front of the vehicle.
The setting means prohibits the driver from looking aside when the host vehicle determines that the host vehicle is traveling and the driver determination unit determines that the driver is not viewing the front of the host vehicle. If it is determined that the vehicle is traveling in the section, the operation is disabled regardless of the duration.
In-vehicle device characterized by

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