WO2016139907A1

WO2016139907A1 - Phone call reception system, in-vehicle device and control program

Info

Publication number: WO2016139907A1
Application number: PCT/JP2016/000848
Authority: WO
Inventors: 千尋平野
Original assignee: 株式会社デンソー
Priority date: 2015-03-02
Filing date: 2016-02-18
Publication date: 2016-09-09
Also published as: JP2016163176A; JP6520212B2

Abstract

This phone call reception system comprises: a mobile device (28) having a phone function; an in-vehicle device (10) which wirelessly communicates with the mobile device and operates in a coordinated manner therewith; a first display device (12) provided to the in-vehicle device; a second display device (162) which is connected to the in-vehicle device and provided to a meter panel (16); and a third display device (18) which is connected to the in-vehicle device and displays, in a visually recognizable manner, a virtual image of a display image by projecting the display image on the windshield. The in-vehicle device comprises: a load determination unit (102) which determines the load state of a driver; and a control unit (101) which controls so that display content corresponding to the load state determined by the load determination unit is displayed on the first display device, the second display device and the third display device.

Description

Call receiving system, in-vehicle device, control program

Cross-reference of related applications

This application is based on Japanese Patent Application No. 2015-40126 filed on Mar. 2, 2015, the disclosure of which is incorporated herein by reference.

The present disclosure relates to a telephone incoming call system, an in-vehicle device, and a control program that perform control according to the driving load state of the driver.

For example, in a mobile device having a telephone function and an in-vehicle device (for example, a car navigation device) that performs incoming call control in conjunction with this, an automatic response of hands-free incoming call is switched on and off according to the driving load state of the driver. There is something to do.

JP 2005-269519 A JP H10-243464 A

単に Control that simply switches on / off the automatic response for hands-free incoming calls cannot be made into fine-tuned control according to the driver's load status. In some cases, the driver's driving operation may be hindered, which may impair safe driving of the vehicle.

This disclosure is intended to provide a telephone incoming call system, an in-vehicle device, and a control program that enable incoming telephone call control according to a driver's load state.

An incoming call system according to an example of the present disclosure includes a mobile device having a telephone function, an in-vehicle device that performs wireless communication with the mobile device and operates in cooperation, a first display device provided in the in-vehicle device, and an in-vehicle device. A second display device connected to the meter panel; and a third display device connected to the in-vehicle device and projecting the display image onto the windshield to display a virtual image of the display image so as to be visible. . The in-vehicle device displays on the first display device, the second display device, and the third display device the load determination unit that determines the load state of the driver, and the display content according to the load state determined by the load determination unit. A control unit for performing control.

An in-vehicle device according to another example of the present disclosure displays a virtual image of a display image so as to be visible by projecting the display image on a portable device having a telephone function, a second display device provided in a meter panel, and a windshield. It is configured to be connectable to the third display device. The in-vehicle device includes a first display device, a load determination unit that determines a load state of the driver, display contents corresponding to the load state determined by the load determination unit, a first display device, a second display device, and And a control unit that performs control to display on the third display device.

A control program according to another example of the present disclosure determines a load state of a driver in an in-vehicle device, and displays display contents according to the load state on the first display device, the second display device, and the third display device. Control the display.

According to this structure, a load determination part determines a driver | operator's load state, and a control part according to the determination result, the display (1st display apparatus) of a main unit (vehicle-mounted apparatus), a meter panel (1st 2 display device) and the display content of the head-up display (third display device) can be controlled, and automatic response processing to the portable device can be performed. This makes it possible to perform incoming call control according to the load state of the driver. Therefore, a user-friendly incoming call response process can be realized, and a highly safe and convenient incoming call system can be constructed.

According to the telephone incoming call system, the in-vehicle device, and the control program of the present disclosure, the telephone incoming call control according to the load state of the driver is possible.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. In the accompanying drawings,
FIG. 1 is a block diagram illustrating an example of a configuration of a telephone call receiving system according to an embodiment. FIG. 2 is a diagram illustrating an example of a configuration inside the vehicle viewed from the driver, FIG. 3 is a process flow diagram showing a process flow according to the embodiment. FIG. 4 is a processing flowchart showing the processing contents of load level determination. FIG. 5 is a diagram showing a vehicle passing through an intersection. FIG. 6A is a diagram showing display contents of the display unit of the main unit in the first state, FIG. 6B is a diagram showing the display content of the display unit of the meter panel in the first state, FIG. 6C is a diagram illustrating display contents of the display unit of the head-up display in the first state, FIG. 7A is a diagram showing the display content of the display unit of the main unit in the second state, FIG. 7B is a diagram showing the display content of the display unit of the meter panel in the second state, FIG. 7C is a diagram showing display contents of the display unit of the head-up display in the second state, FIG. 8A is a diagram showing the display content of the display unit of the main unit in the third state, FIG. 8B is a diagram showing the display content of the display unit of the meter panel in the third state, FIG. 8C is a diagram illustrating display contents of the display unit of the head-up display in the third state.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the substantially same element in each embodiment, and description is abbreviate | omitted.

As shown in FIGS. 1 and 2, the telephone incoming call system 1 according to the present embodiment includes a main unit 10, a display 12, a meter panel 16, a display 162 provided on the meter panel 16, a head-up display (HUD) 18, have. The incoming call system 1 is connected to an in-vehicle LAN 30, and a GPS (Global Positioning System) 20, a speedometer 22, a wiper 24, and a steering angle sensor 26 are connected to the in-vehicle LAN 30. Signals from the GPS 20, the speedometer 22, the wiper 24, and the steering angle sensor 26 are transmitted to the main unit 10 via the in-vehicle LAN 30. Although FIG. 1 illustrates a configuration in which the meter panel 16 and the head-up display 18 are connected by a dedicated line, a configuration in which the meter panel 16 and the head-up display 18 are connected via the in-vehicle LAN 30 may be used in the same manner as the GPS 20 or the like. As the in-vehicle LAN 30, for example, CAN (Controller Area Network), AVC-LAN (Audio-visual communication local area network), or the like can be used. In addition, in FIG. 1, the configuration in which the GPS 20 and the like are connected by the in-vehicle LAN 30 is illustrated, but instead of this, a configuration in which the GPS 20 and the like are connected by a dedicated line may be employed.

The main unit 10 includes a control unit 101, a load determination unit 102, and an automatic response processing unit 103. A back camera 14 is connected to the display 12. The main unit 10 is wirelessly connected to the portable device 28. As the wireless connection means (also referred to as a wireless connection unit), for example, a wireless LAN, Bluetooth communication (Bluetooth: registered trademark) which is an example of a short-range wireless communication standard, or the like can be used. Instead of the wireless connection means, for example, a wired LAN such as a LAN cable may be used.

The main unit 10 is an in-vehicle device that also functions as a so-called car navigation device, and includes an acceleration sensor and a gyro, and can provide route guidance using vehicle speed information, a reverse signal, and map information of the vehicle. . The main unit 10 operates in cooperation by connecting with the mobile device 28, and for example, incoming calls received by the mobile device 28 can be processed by the main unit 10.

The main unit 10 has a display 12, and is configured to display various images. A back camera 14 for back monitoring is connected to the display 12, and an image photographed by the back camera 14 is displayed on the display 12 in conjunction with the back gear. The meter panel 16 is usually located in front of the driver and has various information displays such as a speedometer and a tachometer. The meter panel 16 has a display 162 configured by, for example, a liquid crystal screen. The display 162 is configured to display various images.

The head-up display 18 is an apparatus that displays an image using a windshield (front glass) 32, and is an image that displays a virtual image of the display image in a visible manner so as to be superimposed on the front field of view (driving field) of the driver. It is a display device. Since the display position of the image by the head-up display 18 is located in the vicinity of the driver's line-of-sight direction, the displayed image can be recognized without changing the direction of the line of sight so much. Therefore, the burden on the driver is small when viewing the information displayed on the head-up display 18.

The GPS 20 is a device that can measure its current position on the earth (for example, the GPS 20) using a satellite positioning system, and transmits current position information to the main unit 10. The speedometer 22 transmits vehicle speed information to the main unit 10. The wiper 24 transmits information such as operation information of the wiper 24 and intermittent setting of the wiper operation to the main unit 10. The rudder angle sensor 26 is a measuring device that measures the rudder angle of the steered wheels, and transmits rudder angle information to the GPS 20.

The control unit 101 controls the main unit 10 and various devices connected thereto, and has a CPU, RAM, ROM (corresponding to an example of a computer-readable non-transitory storage medium) and the like (not shown). is doing. The load determination unit 102 determines a driver's load state according to a predetermined determination flow described later. The processes in the control unit 101, the load determination unit 102, and the automatic response processing unit 103 are implemented by loading a control program stored in a ROM into the control unit 101 and executing it, for example. As a result, various processes in the control unit 101, the load determination unit 102, and the automatic response processing unit 103, and control of the display 12, the display 162, the head-up display 18, the portable device 28, and the like are performed.

Next, the processing contents performed in the telephone incoming call system 1 will be described with reference to FIGS. 1 and 3 to 5. As shown in FIG. 3, when the mobile device 28 receives an incoming call (S1), the control unit 101 of the main unit 10 that operates in cooperation with the mobile device 28 executes the processing program, and the load on the driver in the load determination unit 102 Level determination processing is performed (S2). Next, the control unit 101 receives the load level determination result from the load determination unit 102, and performs processing according to the load (S3).

As shown in FIG. 4, the load level determination process (S2) is performed as follows, for example. The load level determination process described below is an example of the processing content, and the determination content can be changed by appropriately applying the matter that becomes the load on the driver. The “load level” is assumed to increase as the value increases.

First, the control unit 101 determines whether or not the vehicle is moving backward based on whether or not the back camera 14 is displaying (S10). The back camera 14 captures a rear landscape in conjunction with the back gear of the vehicle, and displays an image on the display 12. If the back camera 14 is being displayed, it is determined that the vehicle is moving backward (S10: YES), the load level is determined to be “1” (S11), and the load level determination process is terminated.

Next, when the back camera 14 is not being displayed (S10: NO), the load determination unit 102 determines whether or not the vehicle is traveling at the intersection (S12). FIG. 5 shows a state where a vehicle enters an intersection and goes straight, turns right, or turns left. Whether or not the vehicle is traveling at the intersection is determined using GPS 20, map information, vehicle speed information from the speedometer 22, and the like. When the vehicle is traveling at the intersection (S12: YES), it is determined whether the vehicle is turning right or left (S13). Whether the vehicle is turning right or left is determined using GPS 20, map information, vehicle speed information from the speedometer 22, rudder angle information from the rudder angle sensor 26, and the like. When the vehicle is turning right or left (S13: YES), the load determination unit 102 determines the load level to “2” (S14), and ends the load level determination process.

Next, when the vehicle is not turning right or left at the intersection (S13: NO), the load determination unit 102 determines the load level to “1” (S15), and proceeds to the next processing of S17. If the vehicle is not traveling at the intersection (S12: NO), the load determination unit 102 determines the load level to be “0 (zero)” (S16), and proceeds to the next process of S17.

In S17, it is determined whether or not the operation interval of the wiper 24 is not less than a predetermined value. This is determined by whether or not the operation speed of the wiper 24, the intermittent time of the intermittent operation, and the like are equal to or greater than a predetermined interval. If the operation interval of the wiper 24 is greater than or equal to a predetermined value, it is assumed that a considerable amount of rain is falling, and it is assumed that the driver is subjected to a load exceeding normal attention when driving. When the operation interval of the wiper 24 is greater than or equal to the predetermined value (S17: YES), the load determination unit 102 increments the load level by “1” and ends the load level determination process. For example, when the load level is “1” in the step immediately before S17, the load level is incremented by “1” to become “2”.

On the other hand, when the operation interval of the wiper 24 is not equal to or greater than the predetermined value (S17: NO), the load level determination process is terminated without incrementing the load level. For example, if the load level is “1” in the step immediately before S17, the final load level is “1”. In the above example, the load level is incremented by “1” when the operation interval of the wiper 24 is not less than a predetermined value. Instead, the load level is incremented by “1” when the switch of the wiper 24 is turned on. It is good to do.

Next, processing contents according to each load level will be described. FIG. 6A to FIG. 8C show display contents corresponding to each load level. The display content of the display 12 of the main unit 10 is shown in FIGS. 6A, 7A and 8A, the display content of the display 162 of the meter panel 16 is shown in FIGS. 6B, 7B and 8B, and the display content of the head-up display 18 is FIG. 7C and FIG. 8C.

First, display processing of the display 12, the display 162, and the head-up display 18 when the load level is “0” (first state) will be described. 6A to 6C show display contents when the load level is “0”. When the load level is “0”, for example, as described in FIG. 4, the vehicle is not moving backward (S10: NO), is not traveling at an intersection (S12: NO), and is not rainy (S17: NO), that is, when the load level of the driver is low (hereinafter referred to as the first state). In such a case, the driver is not performing a driving operation that requires special attention, and the driving operation has a margin.

Here, when there is an incoming call to the mobile device 28, the main unit 10 cooperates with the mobile device 28 to perform display processing according to the first state. For example, as shown in FIGS. 6A and 6B, the display 12 of the main unit 10 and the display 162 of the meter panel 16 display the name of the caller, the telephone number, and the characters “incoming call” (first). 1 display content). The display of the head-up display 18 displays the characters “incoming call” (second display content). The display on the head-up display 18 is, for example, several seconds. In the first state, it is assumed that the driver has a small load and can visually recognize all of the display 12, the display 162, and the head-up display 18. The incoming call information is displayed on any of these, but since the head-up display 18 is displayed superimposed on the front landscape, the display content is reduced, and the display 12 and display 162 have more detailed display content. Yes.

For example, when an incoming call is received while looking forward, the driver recognizes that the incoming call is displayed on the head-up display 18 arranged in the line-of-sight direction, and confirms that the incoming call is being received by the mobile device 28. know. If the driver wants to know more information, the driver can check the display 12 or the display 162 to check detailed caller information (name, telephone number, etc.). When receiving an incoming call, the driver can operate a switch or the like disposed on the steering wheel, receive the incoming call in a hands-free manner, and start a conversation. Further, when it is determined that the driver does not receive an incoming call for other reasons, for example, an automatic response is made by setting the main unit 10 to perform an automatic response when there is no response for a predetermined time. Alternatively, an automatic response can be made by operating a switch or the like disposed on the steering wheel. The automatic response process is performed by executing a processing program in the automatic response processing unit 103.

Next, display processing of the display 12, the display 162, and the head-up display 18 when the load level is “1” (second state) will be described. 7A to 7C show the display contents when the load level is “1”. When the load level is “1”, in the above-described example, (case 1) the vehicle is moving backward (S10: YES), (case 2) the vehicle is traveling at the intersection (S12: YES), rainy (S17: YES), (Case 3) when traveling at an intersection (S12: YES), not turning left or right (S13: NO), and not raining (S17: NO). That is, this is a case where the driver's load level is in a medium state (hereinafter referred to as a second state). In such a case, the driver is performing a driving operation that requires a certain amount of attention, and there is not much room for driving operation. For example, when the vehicle described above (Case 1) is moving backward, the driver is viewing the rear or viewing the back monitor display displayed on the display 12 of the main unit 10 which is also a car navigation device. . Therefore, if a display that hinders the back monitor display on the display 12 is displayed, the driving operation of the driver is hindered.

Also, in the case of (Case 2) or (Case 3) described above, it is necessary to pay attention to the display of other vehicles and signals while driving at the intersection, or it may be difficult to see the outside due to rain. Can be assumed. In such a case, it is assumed that the driver needs a certain level of attention for the driving operation and does not have enough room to change the line of sight greatly from the front direction.

Here, when there is an incoming call to the mobile device 28, the main unit 10 performs display processing according to the second state in cooperation with the mobile device 28. The display on the display 12 of the main unit 10 is not changed. That is, as shown in FIG. 7A, when the map is displayed on the display 12, such as during route guidance, the map display is continued as it is. In order for the driver to visually recognize the display 12, it is necessary to change the line of sight largely from the front direction. In this case, it is assumed that there is not enough room to change the line of sight largely from the front direction. is there. Further, when the vehicle is moving backward, the driving operation may be hindered if the back monitor display is changed. Therefore, the back monitor display is continued as it is in this case. That is, in the second state, the display 12 continues the operation as the display content without changing the display immediately before the incoming call (third display content).

As shown in FIG. 7B, the display 162 of the meter panel 16 displays the name of the caller, the telephone number, and the characters “Incoming” (first display content). The display of the head-up display 18 displays the characters “incoming call” (second display content). In the second state, the driver displays the information about the incoming call on the display 162 and the head-up display 18 because the display 162 and the head-up display 18 may be visible. Since the display 12 is difficult to visually recognize, it is not necessary to display information related to incoming calls, or when the user is moving backward, changing the display causes trouble.

For example, when an incoming call is received while visually checking the front, the driver recognizes “incoming call” displayed on the head-up display 18 in the direction of the line of sight and knows that the incoming call is being received by the mobile device 28. If the driver wants to know more information, the driver can check the display 162 that can be viewed without moving the line of sight much, and can check the caller information (name, phone number). When accepting an incoming call, the driver can operate a switch or the like disposed on the steering wheel, for example, to receive the incoming call and have a conversation. Further, when it is determined that the driver does not receive an incoming call for other reasons, for example, an automatic response is made by setting the main unit 10 to perform an automatic response when there is no response for a predetermined time. Alternatively, an automatic response can be made by operating a switch or the like disposed on the steering wheel.

Next, display processing of the display 12, the display 162, and the head-up display 18 when the load level is “2” (third state) will be described. 8A to 8C show display contents when the load level is “2”. When the load level is “2”, for example, as described in FIG. 4, (Case 4) When traveling at an intersection (S12: YES), not turning right or left (S13: NO), and raining (S17: YES) or (Case 5) This is a case where the vehicle is traveling at an intersection (S12: YES) and is turning right or left (S13: YES). That is, this is a case where the driver's load level is high (hereinafter referred to as the third state). In such a case, the driver is performing a driving operation requiring a high degree of caution, and there is almost no margin for the driving operation. For example, in the case of (Case 4) or (Case 5) described above, the driver can hardly move his / her line of sight from the front, and it is assumed that there is no room for answering an incoming call. Therefore, in the case of the third state, the control unit 101 executes processing according to this state. The detailed processing contents are as follows.

When there is an incoming call to the mobile device 28, the control unit 101 of the main unit 10 performs display processing according to the third state in cooperation with the mobile device 28. The display on the display 12 of the main unit 10 is not changed, similar to the display process corresponding to the second state. That is, as shown in FIG. 8A, when the map is displayed on the display 12, such as during route guidance, the map display is continued as it is. In order for the driver to visually recognize the display 12, it is necessary to change the line of sight largely from the front direction. Therefore, in the third state, it is difficult for the driver to check the display 12. Therefore, such display contents are used. That is, in the case of the third state, the display 12 continues the operation as it is without changing the display immediately before the incoming call (third display content).

The display 162 of the meter panel 16 displays the name of the caller, the telephone number, and the text “automatic response” as shown in FIG. 8B (fourth display content). The automatic response processing unit 103 executes control for performing an automatic response to the mobile device 28. The automatic response process is performed by executing a processing program in the automatic response processing unit 103. In the automatic answering process, for example, "I can't answer the phone right now. Record a message after the dial tone" or "I can't answer the phone right now. Please try again later." To respond as follows.

The display of the head-up display 18 displays the characters “during automatic response” (the fifth display content). In the third state, the driver is in a state where there is a high load, so that the head-up display 18 can be visually recognized, but other display devices are assumed to be difficult to visually recognize. For this reason, the minimum display content is displayed on the head-up display 18 as described above. As a result, the driver can recognize that the main unit 10 cooperates with the portable device 28 and performs control for performing an automatic response process on the portable device 28. Further, even when the driver is highly loaded, the load may be reduced for a short time. In such a case, since it is possible to move the line of sight slightly, the convenience of the driver can be enhanced by displaying the detailed fourth display content on the display 162.

As described above, according to the embodiment of the present disclosure, the load determination unit 102 determines the load state of the driver, and the control unit 101 determines the display 12 and the meter of the main unit 10 according to the determination result. The display content of the display 162 of the panel 16 and the head-up display 18 can be controlled, and automatic response processing to the portable device 28 can be performed. Thereby, it is possible to configure a telephone incoming call system, an in-vehicle device, and a control program that enable telephone incoming call control according to the load state of the driver. Therefore, a user-friendly incoming call response process can be realized, and a highly safe and convenient incoming call system can be constructed.

The present disclosure is not limited to the above-described embodiments, and can be applied to various embodiments without departing from the gist thereof. For example, in the above-described example, a series of processing and control is performed by the control unit 101 of the main unit 10, but a dedicated ECU is provided separately from the control unit 101, and this performs the above-described processing and control. It is good.

The load level determination process described above is not started when the mobile device 28 receives an incoming call, but is periodically performed in advance when the processing load on the control unit 101 is low. This determination result may be used when there are 28 incoming calls. Further, the load level determination process may not be performed periodically, but may be performed when a parameter used for load determination level determination is changed.

In the above-described embodiment, the back camera 14, the situation at the intersection of the vehicle, and the parameters by the wiper 24 are used for the load level determination process, but these are examples and are not intended to be limited to these. In addition to those exemplified above, traffic information such as VICS (registered trademark), continuous operation time, and the like can be used. Moreover, the display content according to each load level is good also as being able to be changed by the setting by a driver | operator.

The main unit 10 corresponds to an example of an in-vehicle device. The display 12 corresponds to an example of a first display device. The display 162 corresponds to an example of a second display device. The head-up display 18 corresponds to an example of a third display device.

The present embodiment may take various forms such as a computer-readable non-transitory storage medium storing a control program, and a control program product stored in a computer-readable persistent and tangible storage medium.

It should be noted that the flowchart described in the present application, or the process of the flowchart, includes a plurality of steps (also referred to as sections), and each step is expressed as, for example, S1. Further, each step can be divided into a plurality of sub-steps, while a plurality of steps can be combined into one step.

As mentioned above, although the embodiment and the configuration of the telephone incoming call system, the in-vehicle device, and the control program according to the present disclosure have been illustrated, the embodiment and the configuration according to the present disclosure are not limited to the above-described embodiments and each configuration. Absent. Embodiments and configurations obtained by appropriately combining technical elements disclosed in different embodiments and configurations are also included in the scope of the embodiments and configurations according to the present disclosure.

Claims

A portable device (28) having a telephone function;
An in-vehicle device (10) that performs wireless communication with the portable device and operates in cooperation with the portable device;
A first display device (12) provided in the in-vehicle device;
A second display device (162) connected to the in-vehicle device and provided on the meter panel (16);
A third display device (18) connected to the in-vehicle device and projecting a display image on the windshield (32) to display a virtual image of the display image so as to be visible;
The in-vehicle device includes a load determination unit (102) that determines a load state of a driver;
A control unit (101) that performs control to display the display content according to the load state determined by the load determination unit on the first display device, the second display device, and the third display device. Phone call system.
When the load state determined by the load determination unit is the first state,
The display of the first display device and the second display device has a first display content, and the display displayed on the third display device has a second display content different from the first display content. Phone call system.
When the load state determined by the load determination unit is a second state different from the first state,
The display of the first display device is the third display content, the display of the second display device is the first display content, the display displayed on the third display device is the second display content, The telephone incoming call system according to claim 1 or 2, wherein the first display content, the second display content, and the third display content are different from each other.
When the load state determined by the load determination unit is a third state different from the first state and the second state,
The display of the first display device is the third display content, the display of the second display device is the fourth display content, and the display displayed on the third display device is the fifth display content. The telephone incoming call system according to any one of claims 1 to 3, wherein the fifth display content is different from display content.
It is configured to be connectable to a portable device having a telephone function, a second display device provided on a meter panel, and a third display device that displays a virtual image of the display image so as to be visible by projecting the display image onto a windshield. ,
A first display device;
A load determination unit for determining the load state of the driver;
An in-vehicle device comprising: a control unit that performs control to display on the first display device, the second display device, and the third display device the display content corresponding to the load state determined by the load determination unit.
A portable device having a telephone function;
An in-vehicle device that performs wireless communication with the portable device and operates in cooperation;
A first display device provided in the in-vehicle device;
A second display device connected to the in-vehicle device and provided on the meter panel;
In a telephone incoming call system having a third display device connected to the in-vehicle device and displaying a virtual image of the display image so as to be visible by projecting a display image on a windshield,
In the in-vehicle device, a control program for determining a load state of the driver and performing control to display display contents corresponding to the load state on the first display device, the second display device, and the third display device .
A computer-readable non-transitory storage medium storing the control program according to claim 6.