JP2016163176A - Incoming telephone call reception system, on-vehicle device, and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an incoming telephone call reception system, an on-vehicle device, and a control program that enable incoming telephone call control corresponding to the loaded condition of a driver.SOLUTION: An incoming telephone call reception system 1 includes: a portable apparatus 28 having a telephone function; an on-vehicle device 10 for conducting radio communication with the portable apparatus to operate in cooperation with it; a first display device 12 provided on the on-vehicle device; a second display device 162 connected with the on-vehicle device and provided on a meter panel 16; and a third display device 18 connected with the on-vehicle device and for displaying a virtual image of a display image in a visually recognizable manner by projecting the display image on a wind shield 32. The on-vehicle device includes: a load determination unit 102 for determining the loaded condition of a driver; and a control unit 101 for performing control to indicate display contents corresponding to the loaded condition determined by the load determination unit on the first display device, the second display device, and the third display device.SELECTED DRAWING: Figure 1

Description

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

  For example, in a mobile device having a telephone function and an in-vehicle device (for example, a car navigation device) that controls incoming calls in conjunction with this, on / off of an automatic response for hands-free incoming calls according to the driving load state of the driver Some switch.

JP 2005-269519 A JP-A-10-243464

  However, in the control that simply switches on / off the automatic response of the hands-free incoming call, it is not possible to achieve fine control according to the load state of the driver. In some cases, the driver's driving operation may be hindered, which may impair safe driving of the vehicle.

  The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a telephone incoming call system, an in-vehicle device, and a control program that enable a telephone incoming call control according to a driver's load state. .

  A telephone incoming call system according to an invention described in claim 1 is a portable device having a telephone function, an in-vehicle device that operates in cooperation with the portable device by performing wireless communication, a first display device provided in the in-vehicle device, A second display device connected to the vehicle-mounted device and provided on the meter panel; and a third display device connected to the vehicle-mounted device and displaying a virtual image of the display image so as to be visible by projecting the display image onto the windshield. The in-vehicle device includes a load determination unit that determines a load state of the driver, and display contents corresponding to the load state determined by the load determination unit, the first display device, the second display device, and the third display. And a control unit that performs control to display on the apparatus.

  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.

The block diagram which shows an example of a structure of the telephone call incoming system which concerns on embodiment The figure which shows an example of the structure inside a vehicle seen from the driver | operator Process flow diagram showing the flow of processing according to the embodiment Process flow diagram showing the processing content of load level judgment The figure which shows a mode that vehicles pass an intersection The figure which shows the display content of each display part of the main unit in a 1st state, a meter panel, and a head-up display The figure which shows the display content of each display part of the main unit in a 2nd state, a meter panel, and a head-up display The figure which shows the display content of each display part of the main unit in a 3rd state, a meter panel, and a head-up display

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention 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 (Head Up Display, HUD) 18. 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. For example, CAN or AVC-LAN can be used as the in-vehicle LAN 30. 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.

  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, 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 be able 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 displays the virtual image of the display image in a visible manner so as to be superimposed on the front view (driving view) of the driver. An image 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 capable of measuring the current position on the earth by the satellite positioning system, and transmits the 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 includes a CPU, RAM, ROM, etc. (not shown). 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 contents of processing performed in the 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 an 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 greater than or equal to 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 corresponding to each load level will be described. 6, 7, and 8 show display contents corresponding to each load level. The display contents of the display 12 of the main unit 10 are shown in (a) of each figure, the display contents of the display 162 of the meter panel 16 are shown in (b) of each figure, and the display contents of the head-up display 18 are (c) of each figure. Shown in

  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. FIG. 6 shows each display content 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 performs display processing according to the first state in cooperation with the mobile device 28. 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”. Display (first 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. FIGS. 7A to 7C show the display contents when the load level is “1”. When the load level is “1”, in the example described above, (a) when the vehicle is moving backward (S10: YES), (b) when traveling at an intersection (S12: YES), it is rainy. Case (S17: YES), (c) Driving at an intersection (S12: YES), not turning right or left (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 of (a) described above 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.

  In the case of (b) or (c) described above, it is assumed that it is necessary to pay attention to the display of other vehicles and signals while driving at the intersection, or it is difficult to see the outside due to rain. it can. 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 corresponding 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 call” (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 there is an incoming call while viewing the front, the driver recognizes that the incoming call is 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 portable 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. FIG. 8 shows each display content when the load level is “2”. When the load level is “2”, for example, as described in FIG. 4, (d) when driving at an intersection (S12: YES), not turning right or left (S13: NO), and raining ( (S17: YES), or (e) When traveling at an intersection (S12: YES) and 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 (d) and (e) 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 the mobile device 28 receives an incoming call, 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).

  As shown in FIG. 8B, the display 162 of the meter panel 16 displays the name of the caller, the telephone number, and the characters “in automatic response” (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", "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 invention, 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 invention is not limited to the above-described embodiments, and can be applied to various embodiments without departing from the scope of the invention. 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.

  In the drawings, 1 is a telephone call system, 10 is a main unit (on-vehicle device) 102 is a load determination unit, 101 is a control unit, 12 is a display (first display device), 16 is a meter panel, and 162 is a display (second display). Display device), 18 is a head-up display (third display device), 32 is a windshield, and 28 is a portable device.

Claims (6)

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 (1). 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, the display displayed on the third display device is the fifth display content, The incoming call system according to any one of claims 1 to 3, wherein the first display content to the fifth display content are different from each other. 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 .

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