JP5279552B2 - Navigation device for mobile phones - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cellular-phone-compatible navigation apparatus which, when a cellular phone is used on the hands-free system in which it is connected to a vehicular navigation apparatus and when route guidance is provided on a split screen in the navigation apparatus, displays the route guidance displayed on the split screen in an easy-to-see manner. <P>SOLUTION: When a screen for route guidance apart from a map screen which is regularly displayed is usually displayed on a two-split screen, when an incoming call or the operation of telephonic communication on the cellular phone is detected, the screen for route guidance is displayed on an enlarged screen such as full-screen display. When there is an incoming call to the cellular phone, incoming call guidance display is performed together with the route guidance screen enlarged display. When the cellular phone is operated, inter-vehicle distance warning and surroundings obstacle detection warning are forcefully operated regardless of their setting to be suspended. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a navigation device mounted on a vehicle, and in particular, when using a hands-free device that allows a mobile phone to be brought into a vehicle without bothering a driver, The present invention relates to a mobile phone-compatible navigation device for displaying route guidance in an easy-to-read manner for a driver when performing route guidance at a left turn intersection or the like.

  In a general navigation device mounted on a vehicle or the like, a map / information data storage medium such as a DVD-ROM, a hard disk, etc., which stores map data for drawing a map and facility information data for searching for a facility, etc. A data capture device that captures data from a map / information data storage medium, a monitor that displays a map, etc., and a self-contained navigation device that uses a GPS receiver, mileage sensor, gyroscope, etc. The vehicle position detection device that detects the direction of the vehicle, fetches map data including the current position of the vehicle from the map / information data recording medium, and draws a map image around the vehicle position on the monitor screen based on the map data In addition, the vehicle position mark is displayed superimposed on the monitor screen, and the map image is scrolled and displayed as the vehicle moves, or Is as moving the vehicle position mark is fixed a map image on a screen, seen whether the vehicle is traveling where the current at a glance.

  In addition, this navigation device is provided with a route guidance function for allowing the user to easily travel on the road toward a desired destination or waypoint without making a mistake. According to this route guidance function, a destination is set by various means, and a plurality of guidance routes are calculated and presented in consideration of various conditions among routes connecting these points from the departure point to the destination. It is like that. Further, the route selected by the user is stored as a guide route, and the guide route is drawn thickly on the map image while changing the color from the other routes while the vehicle is running.

  Furthermore, when the vehicle approaches the intersection where the direction of travel of the road on the guidance route should be changed within a certain distance, the screen is divided into two parts, general route guidance is continued on one screen, and the screen on the other side is displayed. The user can be guided to the destination by enlarging the intersection, drawing an arrow indicating the direction of the intersection and the direction in which the course should be changed, etc. I can do it.

  On the other hand, with the spread of mobile phones in recent years, it is normal for drivers to bring mobile phones into the car, and hands-free systems are widely used as a system that allows drivers to use the mobile phones safely without hindering driving. It has become so. According to this hands-free system, a mobile phone is connected to a system control device by radio such as wired or Bluetooth, and a microphone connected to this system is fixed at an appropriate position near the driver, a speaker provided separately, Alternatively, a call is made by listening to the other party's voice using a speaker in the car.

  When using such a mobile phone, the hands-free system is activated when a call is received, and a call start instruction for the mobile phone is issued by the driver's call reception instruction operation, and the other party's voice is heard from the speaker. Thus, the driver's response is transmitted. At this time, in order to avoid affecting the mobile phone call, the navigation device, for example, does not output the voice when the route guidance is performed on the screen as described above, even when voice guidance is given. In order not to disturb telephone calls.

  In addition, when the vehicle approaches within a certain distance to the intersection where the traveling direction of the road on the guidance route should be changed, an intersection guidance screen is displayed, and when the further intersection is approaching, the first intersection is displayed. Patent Document 1 discloses a technique for displaying a guidance screen of an intersection ahead of a vehicle in a turning direction and making the driver easy to understand at a glance.

Japanese Patent No. 3491786

  As mentioned above, since the driver brings a mobile phone into the car and uses it in a hands-free system connected to the navigation device, when the mobile phone receives an incoming call, the route change such as a right / left turn intersection is guided. The enlarged screen is displayed in a split screen, and the voice guidance is not output.

  According to such a system, when a mobile phone is used, such as when a mobile phone is received, voice navigation is not performed by the navigation device, so that the mobile phone call is not disturbed. Since the route guidance output to change the route is only on the screen, the route guidance such as the intersection guidance displayed on the two screens is often overlooked. For this reason, a right / left turn is not performed at a right / left turn intersection, and an operation such as performing a U-turn and re-searching a guidance route for route change, or an operation of the navigation device is necessary.

  Accordingly, when the present invention is used in a hands-free system in which a mobile phone is connected to a vehicle navigation device, the navigation device displays a route guidance such as a right / left turn intersection on the divided screen portion when the navigation device guides the route guidance on the divided screen portion. The main object is to provide a mobile phone compatible navigation device that can display route guidance in an easy-to-view manner.

  In order to solve the above problems, a mobile phone compatible navigation device according to the present invention includes a mobile phone operation detection unit that detects the operation of the mobile phone and a screen that guides the route separately from the map screen that is regularly displayed. A route guidance screen display unit for displaying, wherein the route guidance screen display unit divides the same monitor screen as the map screen and displays the route guidance screen, respectively, and a normal divided screen display unit, and the route A route guidance screen enlarged display unit that displays an enlarged screen of the route guidance screen on the normal split screen display unit, and the route guidance screen display unit is portable by the mobile phone operation detection unit. When the operation of the telephone is detected, the route guidance screen enlarged display portion is selected and the enlarged route guidance screen is displayed.

  In addition, another mobile phone compatible navigation device according to the present invention is characterized in that, in the mobile phone compatible navigation device, the route guidance screen enlarged display unit displays a screen for guiding a route on a full screen.

  In another mobile phone compatible navigation device according to the present invention, in the mobile phone compatible navigation device, the mobile phone operation detecting unit detects an operation of the mobile phone when a mobile phone is received, and the route guidance screen display unit is The route guidance screen enlarged display portion is selected when the incoming call is received.

  In another mobile phone compatible navigation device according to the present invention, the mobile phone compatible navigation device displays an incoming call guidance display together with the route guidance screen enlarged display when the mobile phone receives an incoming call.

  In another mobile phone compatible navigation device according to the present invention, in the mobile phone compatible navigation device, when the mobile phone is activated, the driving assist function is activated so that the warning output is activated even when the warning output is stopped by the driving assist function. An instruction unit is provided.

  Since the present invention is configured as described above, when the mobile phone is used in a hands-free system connected to a vehicle navigation device, the navigation device guides route guidance such as a right-left turn intersection on the divided screen portion. Can be made easier to see by enlarging and displaying the route guidance displayed on the divided screen.

It is a functional block diagram of the Example of this invention. It is an operation | movement flowchart of the Example. It is a screen display example of the same embodiment. It is the other example of a screen display of the Example. It is the example of a screen display which displays only a map screen.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram of a mobile phone compatible navigation apparatus according to the present invention. The mobile phone compatible navigation device shown in FIG. 1 includes a system control unit 10 that operates the entire navigation device with predetermined program software, and various functional units are connected to the system control unit 10. The navigation apparatus performs a predetermined operation as a whole.

  The mobile phone compatible navigation device shown in FIG. 1 includes various functional units similar to those of a conventional navigation device. A hands-free system 12 is connected to the mobile phone connection unit 11. Is connected to a mobile phone 13, a mobile phone speaker 14, and a microphone 15. Note that the mobile phone 13 can be connected to the hands-free system 12 or to the mobile phone connection unit 11 of the navigation apparatus by radio such as Bluetooth. Furthermore, the speaker 14 can also output sound from the speaker 27 of the speaker system in the vehicle when the navigation device is connected to the vehicle audio device.

  A monitor 17 is connected to the image output unit 16 and can perform a map screen of the navigation device, a guidance route, various facility guidance, and the like, especially at the right and left turn intersections and road junctions during guidance route guidance. To make it possible to change the route appropriately, the screen is divided into two parts and a normal map is displayed on one side. On the other screens, there is an enlarged screen near the intersection where the route guidance is performed, or a screen simulating the intersection. The route guidance screen such as displaying and guiding can be divided and displayed.

  The vehicle position detection unit 18 inputs the position data of the GPS receiver 19 and further inputs the movement data of the vehicle from the travel distance / orientation detection unit 20 by a vehicle speed sensor or an angle sensor as necessary. The current position is accurately detected. In the instruction signal input unit 21, an instruction signal for the remote controller 22 or the like by the user in the navigation device is input. Further, a signal of the voice recognition unit 23 that inputs a user instruction signal by processing for recognizing the user's voice as necessary is also input to the instruction signal input unit 21.

  The data fetching unit 24 fetches necessary map data, facility information, etc. from a map / information data recording medium 25 such as a DVD-ROM or a hard disk, and the data recording medium can easily store data like a hard disk. When writing is possible, data input is also possible so that data taken from outside or data processed by other functional units can be read and used later.

  A speaker 27 is connected to the audio output unit 26 so that the route guidance is performed by voice centering on the voice guidance at a point where the route is changed such as a right / left turn intersection. In the voice output unit 26, when performing route guidance using a divided screen in the vicinity of the point where the route guidance is performed from the image output unit 16 to the monitor 17, route guidance is also performed from the voice output unit 26 by voice. Yes. However, in such a system, as will be described later in the present invention, when the mobile phone connected to the hands-free system at the mobile phone connection unit 11 performs a call operation such as an incoming call, the voice output unit 26 The voice guidance of the route is stopped, and the route guidance is displayed on an enlarged screen such as a full screen display from the state where the route guidance is performed on the divided screen from the image output unit.

  In the example shown in FIG. 1, in order to carry out the present invention in particular, the mobile phone operation corresponding processing unit 30 is provided, and the mobile phone operation detecting unit 31 therein receives an incoming call from the mobile phone 13 as a signal from the mobile phone connection unit 11. The incoming call detection unit 32 is detected, and various functions are started by the detection signal of the incoming call detection unit 32 in particular. However, the mobile phone operation detection unit 31 can further detect that the user has performed an operation to make a call with the mobile phone in order to make a call with the outside, and can also perform various operations at that time. .

  In the route guidance screen enlargement instructing unit 33, when the operation of the cellular phone is detected by the cellular phone operation detecting unit as described above, the route guidance screen is displayed on the route guidance screen display unit 45 of the guidance route guidance output processing unit 40 described later. An instruction signal for enlarging and displaying is output. As a result, the route guidance screen enlargement display unit 46 of the route guidance screen display unit 45 is activated, and the route guidance screen output from the image output unit 16 to the monitor 17 is displayed in an enlarged manner such as full screen display.

  In the incoming call guidance display instruction unit 34 in the mobile phone operation corresponding processing unit 30, when the incoming call detection unit 32 of the mobile phone operation detection unit 31 detects the incoming call by the mobile phone as described above, the image output unit 16 sends the information to the monitor 17. To display a predetermined incoming call guidance. In addition, the driving assistance function operation instructing unit 35, when detecting the mobile phone operation such as the detection of the incoming call of the mobile phone, when the vehicle is provided with the inter-vehicle distance measuring function with the preceding vehicle and the approach warning system, Even when use is stopped, warning output as a driver assistance function is forcibly performed. In addition, for example, when a system that detects an obstacle around the vehicle that detects whether an obstacle does not exist when the vehicle is moving backwards and outputs a warning at the time of detection, the system is forcibly activated, Enable to output obstacle warning as driving assistance function.

  The guidance route guidance output processing unit 40 performs output processing for performing guidance at right and left turn intersections, road branching points, and the like, and the guidance route guidance creating unit 41 therein guides the guidance route with images and voice. Create various data to do. In particular, the route guidance output location detection unit 44 detects a point where route guidance such as a right / left turn intersection is to be performed for the guidance route stored in the guidance route storage unit 43 described later, and guides the user at that point. Create data.

  In the illustrated example, the guidance route guidance output processing unit 40 includes a guidance route calculation unit 42 that calculates a guidance route serving as basic data for guiding the guidance route. Here, as in the case of a conventional navigation device, vehicle position detection is performed. The current position taken in from the unit 18, the destination input by various input methods, and data of waypoints as necessary are input to calculate the guidance route. Further, when the current location deviates from the guidance route, the guidance route to the destination is immediately recalculated. The latest data of the guide routes obtained by the calculation is stored in the guide route storage unit 43. The data in the guidance route storage unit 43 is used by the route guidance output location detection unit 44 as described above.

  The route guidance screen display unit 45 displays a route guidance screen at the point detected by the route guidance output location detection unit 44 that needs to guide the route to the driver, in addition to displaying the guidance route on the map screen. Yes, the normal split screen display unit 46 splits the screen into two parts to display the route guidance part in an enlarged manner from the state where the map screen is displayed on the entire screen and the guidance route is displayed as in the conventional case, A map screen is displayed on one screen, and a route guidance screen is displayed on the other screen.

  Particularly in the present invention, the route guidance screen display unit 45 is provided with a route guidance screen enlargement display unit 47, and when performing the route guidance as described above, when there is an instruction from the route guidance screen enlargement instruction unit 33, route guidance is displayed. Perform enlarged display such as full screen display. As a result, when the mobile phone is activated, such as when receiving a mobile phone, the route guidance is displayed on an enlarged screen, and the driver is distracted by the phone and attention to the front. This solves the problem of overlooking route guidance by the above-described two-divided screen displayed on the navigation device.

  In the example shown in FIG. 1, a driving assistance function operating unit 50 is provided. Here, for example, a driving assistance function that measures an inter-vehicle distance and issues a warning when the inter-vehicle distance is too close corresponding to the vehicle speed, or an obstacle is detected when the vehicle moves backward. Thus, a driving assistance function for detecting surrounding obstacles and the like is provided so as to alert the driver or monitor so as not to come in contact with side obstacles while traveling on a narrow road.

  At this time, the driving assist function operating unit 50 outputs data based on these driving assist functions to the warning output necessity determining unit 51, and the warning output necessity determining unit 51 performs the above-described portable output in addition to determining whether the warning output is necessary. When the operation of the driving assistance function is instructed due to the operation of the mobile phone, particularly from the driving assistance function activation instruction unit 35 of the telephone operation correspondence processing unit 30, the operation of this warning system is stopped. However, it is determined that the warning needs to be performed, and in addition to the warning display, the warning can be output from the driving warning output unit 52 via the audio output unit 26 by the speaker 27 or by the buzzer.

  In the embodiment comprising the functional blocks shown in FIG. 1, for example, it can be carried out by sequentially operating according to the operation flow shown in FIG. That is, in the telephone operation process during the divided screen guidance shown in FIG. This operation is performed in the mobile phone operation detection unit 31 in the mobile phone operation processing unit 30 of FIG. As the operation of the mobile phone at this time, in addition to the detection of the incoming call by the incoming call detection unit 32, the state where the telephone call is actually performed after that, and the driver performs an operation to make a call to contact the outside , And a state in which a telephone call is subsequently made is also detected as a mobile phone operation.

  Next, it is determined whether or not the guidance route guidance is in a divided screen (step S2). This operation can be determined based on whether or not the route guidance is being performed at the point detected by the route guidance output location detection unit 44 on the route guidance screen display unit 45 in the guidance route guidance output processing unit 40 of FIG. If it is determined on the divided screen that the guidance route guidance is not being performed, the process returns to step S1 and the above operation is repeated.

  When it is determined in step S2 that guidance route guidance is being performed on the divided screen, the guidance route guidance on the divided screen is displayed in an enlarged manner (step S3). This operation is performed by the guidance route guidance output processing unit 40 in FIG. 1 activating the route guidance screen enlargement display unit 47 in the route guidance screen display unit 45 in response to a signal from the mobile phone operation detection unit 31. With this operation, for example, in order to perform route guidance from the normal map screen display state shown in FIG. 5, for example, when a right / left turn intersection is conventionally displayed on a divided screen as shown in FIG. When the operation is detected, for example, as shown in FIG. Of course, full screen display may be actually performed.

  When performing such route guidance, when a mobile phone is activated such as an incoming call of a mobile phone, the route guidance is displayed on an enlarged screen, and the driver is distracted by the attention to the phone and the front and displayed on the navigation device The problem of overlooking the route guidance by the two-divided screen as shown in FIG. 3A can be solved. Especially when the voice guidance of the route is not performed at the time of telephone operation, the route guidance as shown in FIG. 3A is often overlooked, but when the screen display as shown in FIG. Therefore, the line of sight moves to the navigation screen, and it is possible to reliably change the route at a right / left turn intersection or a road junction. Note that on the screen as shown in FIG. 3B, the route guidance screen frame or the like may be flash-displayed to attract more attention.

  In the example shown in FIG. 2, after that, it is determined whether or not the operation of the mobile phone is an incoming call (step S4). Displayed (step S5). In this operation, when the incoming call detecting unit 32 of the mobile phone operation detecting unit 31 in FIG. 1 detects the incoming call of the mobile phone, the incoming call guidance display unit 34 indicates that the mobile phone has received from the image output unit 16 to the monitor 17. It can be activated by producing an output to be displayed. However, the incoming call indication may be displayed even when it is determined in step S2 that guidance route guidance is not performed on the divided screen.

  The incoming call guidance display at this time can be implemented in various modes. For example, as shown in FIG. 4, a display of “with incoming call” can be displayed adjacent to the enlarged route guidance screen. At this time, the voice output unit 26 may guide the user that the mobile phone is receiving a voice. In addition to the incoming call, the mobile phone may be operated by the driver to make a call. For example, when a phone number is input by voice or when the other party is selected from a list, a call is made. The route guidance can be enlarged and displayed in an easy-to-read manner, assuming that the telephone is still in operation.

  Thereafter, in the example shown in FIG. 2, when it is determined in step S4 that the operation of the mobile phone is not an incoming call operation, the process proceeds to step S6, and it is determined whether or not a call is actually made with the mobile phone (step S6). When a call is not made, that is, when an instruction to not make a call with respect to an incoming call of a mobile phone is given, or when an operation for making a call is performed but the operation is stopped in the middle, the process goes to step S1. Return and repeat from the detection of mobile phone operation.

  When it is determined in step S6 that a call has been made on the mobile phone, various driving assistance functions are operated while the enlarged display of the guidance route guidance on the split screen is continued as it is (step S7). In this operation, even if the driver outputs a warning output by the driving assist function operating unit 50 in FIG. 1 and the warning output necessity determining unit 51 instructs the driver not to perform this warning output during the current driving in advance, the mobile phone It is determined that the warning output is performed at the time of operation, and the operation warning output unit 52 outputs the warning. The warning output at this time can be various outputs, but when it is determined that the inter-vehicle distance is too close corresponding to the vehicle speed, for example, as shown in FIG. 4, adjacent to the enlarged route guidance screen, A message such as “Caution!” Or “Caution for distance between vehicles” is displayed. At this time, the driver may be warned by a buzzer.

  Thereafter, it is determined whether or not the state of performing guidance route guidance on the divided screen has ended (step S8). Here, for example, it is determined whether the right / left turn is finished according to the guidance at the right / left turn intersection and the state where the route guidance is displayed on the divided screen is finished. As a result of the determination, when it is determined that the operation has not been completed, the process proceeds to step S9 to determine whether or not the operation of the mobile phone has been completed. When it is determined that the operation has not been completed yet, the process returns to step S8 and the divided screen is displayed. It repeats the determination of whether or not the state for guiding route guidance has ended and the determination of whether or not the call has ended, and when either state ends, the process proceeds to step S10, and the route guidance is enlarged and displayed. The normal screen display is performed from the state of being present, and thereafter, the process returns to step S1 to repeat the above operation.

DESCRIPTION OF SYMBOLS 10 System control part 11 Cell-phone connection part 12 Hands-free system 13 Cell-phone 14 Speaker 15 Microphone 16 Image output part 17 Monitor 18 Vehicle position detection part 21 Instruction signal input part 24 Data acquisition part 26 Audio | voice output part 27 Speaker 30 Mobile phone Operation corresponding processing unit 31 Mobile phone operation detection unit 32 Incoming call detection unit 33 Route guidance screen enlargement instruction unit 34 Incoming guidance display instruction unit 35 Driving assistance function operation instruction unit 40 Guidance route guidance output processing unit 41 Guidance route guidance creation unit 42 Guidance route Calculation unit 43 Guidance route storage unit 44 Route guidance output location detection unit 45 Route guidance screen display unit 46 Normal divided screen display unit 47 Route guidance screen enlarged display unit 50 Driving assistance function operation unit 51 Warning output necessity determination unit 52 Driving warning output Part

Claims (5)

A mobile phone operation detector for detecting the operation of the mobile phone;
A route guidance screen display unit that displays a screen that guides the route separately from the map screen that is regularly displayed,
The route guidance screen display unit divides a monitor screen that is the same as the map screen into a screen that guides the route, and displays a screen that guides the route, and a normal divided screen display unit that displays the route. And a route guidance screen enlargement display section that displays an enlarged view of the route guidance screen,
The route guidance screen display unit performs enlarged route guidance screen display by selecting the route guidance screen enlarged display unit when the cellular phone operation detection unit detects the operation of the cellular phone. Compatible navigation device.   2. The mobile phone compatible navigation device according to claim 1, wherein the route guidance screen enlargement display unit displays a screen for guiding the route in full screen. The mobile phone operation detection unit detects the operation of the mobile phone when a mobile phone is received,
2. The mobile phone compatible navigation device according to claim 1, wherein the route guidance screen display unit selects a route guidance screen enlargement display unit at the time of the incoming call.   4. The mobile phone compatible navigation device according to claim 3, wherein when the mobile phone is received, an incoming call guidance display is performed together with the enlarged route guidance screen display.   The mobile phone-compatible navigation device according to claim 1, further comprising a driving assistance function operation instructing unit that performs the warning output operation even when the operation of the warning output by the driving assistance function is stopped when the cellular phone is activated.

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