JP2008089347A - Navigation device, its control method, and its control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device capable of transmitting guidance information etc., sensuously to users by displaying the images correlated with travel speed, travel distance, travel time and guidance information on a screen of audio that has been selected. <P>SOLUTION: A travel speed of self-vehicle is extracted from a vehicle information acquiring part 12 with a vehicle speed extracting part 32a. A data analysis part 33 analyzes the travel speed and quantifies the travel speed extracted by the speed detection part 32a for applying to parameter. A display number determination part 34a readouts the display number parameter recorded in a recording part 13, and determines the display number of mark A displaying on a display based on these quantified driving speed data of the self-vehicle. Then, an image processing means 35 outputs it on a display part 7. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an improvement of a navigation technique guidance method, and relates to a navigation device that displays a mark linked to guidance information, a control method thereof, and a control program thereof.

  2. Description of the Related Art In recent years, with the development of information processing technology, in-vehicle navigation devices that are mounted on a moving body such as a vehicle and perform route guidance are rapidly spreading. This navigation device uses map data prepared in advance and displays not only the current position information of the vehicle, which is measured by GPS, on the surrounding map, but also calculates the route to the designated destination, The route is guided by display or synthesized speech.

  In the current navigation device, the guide route to the destination is not complicated, the driving road is monotonous, and there is no need to display detailed map data. Functions for switching and turning off the screen output are provided. In this audio screen, a still image, an image using an animation effect, or the like is displayed on the background, so that an environment that does not hinder driving is provided to the user.

  For example, an image that relieves the user's driving fatigue and stress, or an image that increases concentration during driving is displayed. In addition, in a navigation device having a function of switching to an audio screen, when guidance by map data is necessary at a guidance point such as an intersection or a crossing or around a destination, the navigation screen automatically switches from the audio screen to the guidance screen by map data. Some have a function.

  However, in order to guide to the guidance point in the audio screen, if the map screen is suddenly switched to the guidance screen, the guidance information cannot be transmitted to the user until just before the guidance point, and the user May not be able to travel along the guidance route as instructed. For example, if the screen changes to map data immediately before the guidance point to turn right while driving on the leftmost lane of a three-lane road on one side, the user cannot make a sudden right turn and travels along the guidance route according to the instructions. Applicable when not possible.

Therefore, a navigation device is provided that displays guidance points such as intersections and reach distances to destinations as character information at the corners of the screen during normal travel. In addition, a method of presenting to the user on the screen that the vehicle has turned correctly when passing a guidance point such as a right turn, and a method of generating guidance data consisting of peripheral information of the destination and displaying it when the destination arrives are proposed. (See Patent Document 1).
JP2002-318135

  By the way, the method of displaying the guidance point and the arrival distance to the destination at the corner of the screen during normal driving as character information requires the user to watch the screen and may not be aware of the guidance information. On the other hand, information could not be transmitted accurately.

  In addition, the method of presenting on the screen that the vehicle has turned correctly when passing a guidance point such as an intersection can eliminate the anxiety of whether the route traveled is correct, but the guidance point information is presented to the user in advance. In some cases, it was impossible to do so, and the vehicle was traveling on the wrong route. And in the method of displaying guidance data composed of the peripheral information of the destination, if the user does not know the peripheral information of the destination in advance, even if the guidance data is displayed, it cannot be understood. Because it was necessary to compare the actual surrounding environment, attention was distracted.

  Therefore, in order to solve the above problems, the present invention displays on the screen a mark linked to the vehicle speed, the travel distance, the travel time, and the guidance information on the screen switched to the audio screen. It is an object of the present invention to provide a navigation device capable of transmitting guidance information and the like sensuously.

The present invention solves the above problems by the following means.
According to the first aspect of the present invention, an input unit that receives an input from a user, a storage unit that stores road map data for route search in advance, a detection unit that detects the position of the host vehicle, and the travel of the host vehicle A vehicle information acquisition unit for acquiring vehicle information, a guidance processing unit for calculating an optimum route and a guidance guidance process from the own vehicle position detected from the detection unit and the destination information set through the input unit, and display information In a navigation device comprising: a display unit for performing: an information extracting unit that extracts vehicle information that varies according to the traveling of the vehicle; and a change amount according to a change amount of the vehicle information extracted by the information extracting unit. Drawing mark determining means for determining a mark to be drawn on the display unit based on any one of a parameter indicating the number, position, size, color, or a combination thereof, and the determined mark And having a image processing means for outputting to the display unit.

  The invention of claim 8 grasps the navigation device of claim 1 from the viewpoint of the method, and includes an input unit that receives input from a user, and a storage unit that stores road map data for route search in advance. A detection unit for detecting the vehicle position, a vehicle information acquisition unit for acquiring vehicle information according to the traveling of the vehicle, a vehicle position detected from the detection unit, and destination information set through the input unit Information extraction for extracting vehicle information that fluctuates according to vehicle travel in a navigation device control method comprising a guidance processing unit for calculating an optimum route and guidance guidance processing, and a display unit for displaying information In accordance with the step and the amount of change in the vehicle information extracted in the information extraction step, any one of the parameters indicating the number, position, size, color, or a combination thereof is changed. And drawing mark determining step of determining a mark drawn on the display unit Zui, an image processing step of outputting the determined the mark on the display unit, characterized in that the run.

  The invention of claim 15 is obtained by grasping the invention of claim 1 or claim 8 from the viewpoint of a computer program, and stores in advance an input unit for receiving input from a user and road map data for route search. The storage unit, the detection unit for detecting the vehicle position, the vehicle information acquisition unit for acquiring vehicle information according to the traveling of the vehicle, the vehicle position detected from the detection unit and the purpose set through the input unit In a control program for a navigation device comprising a guidance processing unit for calculating an optimum route from the location information and a guidance guidance process, and a display unit for displaying the information, this program is stored in the guidance processing unit in the vehicle. An information extraction process for extracting vehicle information that fluctuates according to traveling, and the number, position, size, and color that change according to the amount of change in vehicle information extracted by the information extraction process. A drawing mark determination process for determining a mark to be drawn on the display unit based on any one or a combination thereof, and an image process for outputting the determined mark to the display unit. And

  In the aspect as described above, a mark based on any one of the parameters indicating the number, position, size, and color that change according to the change of the extracted vehicle information, or a combination thereof can be drawn on the display unit. The guidance information can be transmitted to the user by a sensory expression using the mark. That is, the present invention can provide a navigation device that can transmit guidance information safely and accurately without requiring the user to pay attention to the screen, unlike the method of displaying vehicle information as character information.

  According to a second aspect of the present invention, in the navigation device according to the first aspect, the mark to be drawn on the display unit is composed of an image.

The invention of claim 9 grasps the navigation device of claim 2 from the viewpoint of the method, and in the navigation device control method of claim 8, the mark to be drawn on the display unit is composed of an image. It is characterized by being.

  In the above aspect, since an image can be displayed on the screen according to the change in the extracted vehicle information, it is possible to visually increase the degree of recognition with respect to a change in the traveling speed, which is vehicle information. is there. For example, the route information can be transmitted to the user sensuously by displaying an image having a story or an image indicating the degree of danger when the speed is exceeded.

  According to a third aspect of the present invention, in the navigation device according to the first or second aspect, the vehicle information includes any one of a traveling speed, a traveling distance, and a traveling time of the host vehicle, and the drawing mark determining means A display number determining unit is provided that changes the number of marks to be drawn on the display unit according to any increase or decrease in speed, travel distance, or travel time.

  The invention of claim 10 grasps the invention of claim 3 from the viewpoint of the method, and in the control method of the navigation device according to claim 8 or 9, the vehicle information includes the traveling speed of the own vehicle, Display number that includes either travel distance or travel time, and the drawing mark determination step changes the number of marks displayed on the display unit as the travel speed, travel distance, or travel time increases or decreases. The determination step is performed.

  In the above-described aspect, the vehicle travels in an easily understandable manner by increasing / decreasing the number of marks to be displayed on the screen in accordance with any increase / decrease in the vehicle information, such as travel speed, travel distance, and travel time. An increase or decrease in speed or the like can be transmitted to the user. As a result, it is not necessary to pay attention to the screen as compared to a mode in which speed increase / decrease is displayed as character information, and it is possible to quickly grasp changes in vehicle information using a monotonous parameter of change in the number of displayed marks. is there.

  According to a fourth aspect of the present invention, in the navigation apparatus according to any one of the first to third aspects, the vehicle information includes any one of a traveling speed, a traveling distance, and a traveling time of the host vehicle, and the drawing mark determination is performed. The means includes a display size determining unit that changes a display size of a mark to be drawn on the display unit in accordance with any increase or decrease of the travel speed, the travel distance, or the travel time.

  The invention of claim 11 grasps the invention of claim 4 from the viewpoint of the method, and in the control method of the navigation device according to claims 8 to 10, the vehicle information includes a traveling speed of the host vehicle, Display size that includes either travel distance or travel time, and in which the drawing mark determination step changes the display size of the mark to be rendered on the display unit as the travel speed, travel distance, or travel time increases or decreases The determination step is performed.

  In the above aspect, the display size of the mark drawn on the screen is changed in accordance with any increase / decrease of the travel speed, travel distance, and travel time that are vehicle information. An increase or decrease in speed or the like can be transmitted to the user. That is, by using a parameter having a large visual influence such as a change in the display size of the mark, it is possible to easily and quickly grasp an increase / decrease in travel speed or the like as a method of displaying text information.

  According to a fifth aspect of the present invention, in the navigation device according to any one of the first to fourth aspects, the vehicle information includes any one of a traveling speed, a traveling distance, and a traveling time of the host vehicle, and the drawing mark determination is performed. The means includes a color determination unit that determines a change in color attached to a mark drawn on the display unit in accordance with any increase or decrease in the travel speed, travel distance, or travel time.

  The invention of claim 12 grasps the invention of claim 5 from the viewpoint of the method, and in the control method of the navigation device according to claims 8 to 11, the vehicle information includes a traveling speed of the own vehicle, The drawing mark determination step includes a travel distance or a travel time, and the drawing mark determination step determines a change in color attached to the mark to be rendered on the display unit as the travel speed, travel distance, or travel time is increased or decreased. A color determining step is performed.

  In the above aspect, it is easy to recognize a change in color by changing the color attached to the mark drawn on the screen in accordance with any increase or decrease in the travel speed, travel distance, or travel time that is vehicle information. In this way, the increase / decrease of the traveling speed or the like can be transmitted to the user. Thereby, since the user can easily detect a change in the color attached to the mark, it is possible to drive safely without distraction.

  The invention according to claim 6 is the navigation device according to any one of claims 1 to 5, wherein the vehicle information includes direction information of the own vehicle, and the road map data includes position information of a guidance point. The drawing mark determination means determines whether the vehicle turns right or left at the guidance point based on the direction information and the position information of the guidance point and the guidance route information to the destination calculated by the guidance processing unit. When the information to be obtained is acquired, the apparatus has a left / right ratio determining unit that determines a right / left ratio of a mark to be drawn on the display unit based on the right / left turn information.

  The invention of claim 13 grasps the invention of claim 6 from the viewpoint of the method, and in the control method of the navigation device according to any one of claims 8 to 12, the vehicle information is The road map data includes guidance point position information, and the drawing mark determination step is calculated by the direction information and the guidance point position information and the guidance processing unit. Left and right for determining the right / left ratio of the mark to be drawn on the display unit based on the right / left turn information when the vehicle acquires right / left turn information at the guidance point from the guide route information to the destination A ratio determining step is executed.

  In the above aspects, based on the direction information of the vehicle, which is vehicle information, the position information of guidance points such as intersections and crossings in the road map data, and the guidance route information to the destination, When the right / left turn direction of the vehicle is acquired, the ratio of marks to be drawn can be increased on the side of the turning direction on the screen. Therefore, the user can easily recognize the right / left turn information at the next guidance point based on the left / right ratio of the mark displayed on the screen. That is, the user can safely obtain the guidance information without having to pay attention to the screen.

  The invention according to claim 7 is the navigation device according to any one of claims 1 to 6, wherein the change of the mark is realized by continuous animation display.

  The invention of claim 14 grasps the invention of claim 7 from the viewpoint of the method, and in the control method of the navigation device according to any one of claims 8 to 13, the change of the mark is: It is realized by continuous animation display.

  In the above aspect, since the change of the mark drawn on the screen can be displayed as an animation according to the change of the traveling speed or the like that is the vehicle information, the user recognizes the change of the vehicle information continuously. It becomes possible.

  As described above, according to the present invention, on the screen switched to the audio screen, the mark linked to the vehicle speed, the travel distance, the travel time, the direction and the guidance point information is displayed to the user sensuously. Guide information and the like can be transmitted. That is, by displaying a mark linked to the traveling speed and traveling time, it is possible to visually convey the danger of overspeeding, the timing of a break, and the like. By displaying a mark linked to the travel distance, the distance to the destination can be transmitted sensuously, so when arriving at the destination, it can be notified to the user in a simple way. It is also possible to concentrate on driving if there is a time to reach the destination. Furthermore, by displaying a mark linked to the direction and guidance point information, information such as the direction of travel at the guidance point can be transmitted sensibly rather than displaying the guidance route with text information. It is possible to drive safely without any problems.

  Next, the best mode for carrying out the present invention will be described with reference to FIG.

[1. Constitution]
In this embodiment, a navigation device that guides a route to a destination (hereinafter referred to as “this device”) will be described. It can also be grasped as a control method and a control program. The configuration of this device is shown in FIG. Shown in

  Reference numeral 1 denotes an FM multiplex reception and processing unit for acquiring VICS information, and reference numeral 2 denotes a beacon reception and processing unit for acquiring VICS information. Reference numeral 3 denotes a main CPU (central processing unit) that controls the entire system and its peripheral circuits, and a guidance processing unit that performs information processing including control of each part of the apparatus. 4 is a dynamic RAM (DRAM) for loading the main program, 5 is a static RAM (SRAM) with battery backup for holding memory contents such as settings even when the main power is turned off, and 6 is for starting up etc. The ROM is accessed from the guidance processing unit 3. Here, the main memory M includes a DRAM 4, an SRAM 5, and a ROM 6.

  Reference numeral 7 denotes a display unit for drawing and displaying information such as a map, and has a display screen such as a liquid crystal display panel. Reference numeral 8 denotes a video RAM (VRAM) provided for the display unit 7. 9 is an input unit that receives input of information and operation, and is a control device that detects input from a touch key or the like. However, the configuration and type of the input unit are free, in addition to operation switches around the display unit 7, A remote control unit, a touch sensor integrated with a display panel, or the like may be used alone or in combination. A user interface unit 10 connects the display unit 7 or the input unit 9 and the guidance processing unit 3 using an I / O control circuit, a driver, or the like.

  Reference numeral 11 denotes a TV receiving and processing unit for receiving TV (various television broadcasts). Reference numeral 12 denotes a vehicle information acquisition unit that detects the travel speed, travel distance, and travel time of the vehicle. The vehicle information acquisition unit 12 also acquires navigation information related to the behavior of the vehicle such as the current position and direction by using a positioning technique (for example, GPS, gyroscope, geomagnetic sensor, etc.).

  A storage device 13 is a road map data (typically, route search data or map display data), other search data or maps, using a drive such as an HDD, DVD-ROM, or CD-ROM. A storage unit for recording related data and the like.

  This road map data consists of two for route search and map display, and the route search data is composed of data (node, link information) necessary for route search. The link of the route search data has a common ID as a link ID and a road link for map display, and is associated with each other. On the other hand, the map display data includes detailed road shape information (shape point sequence), area shape information, and position information of guidance points such as intersections and railroad crossings for display.

  The storage unit 13 also has a display number parameter for adjusting the number of marks, a display size parameter for adjusting the display size of the mark, and a mark displayed on the mark screen for a mark drawn as a small figure or symbol on the screen. The left / right ratio parameter for adjusting the left / right ratio and the color parameter for adjusting the color of the mark are recorded. Furthermore, image parameters for applying an image corresponding to each parameter as a display target are also recorded. On the other hand, when the mark is displayed as a three-dimensional image, a parameter for adjusting the coordinate change in the three-dimensional direction (z-axis when the display screen is represented by the xy plane) is also stored. The above recorded parameters are applied to quantified data of vehicle information such as travel speed and travel distance extracted by the information extraction means 32 described later.

  In addition, the guidance processing unit 3 includes the following processing means (31, 32,... Shown in FIG. 1) corresponding to the operation described later. It should be noted that navigation processing common to the prior art (for example, calculation of the current position, destination designation reception, route search, guidance guidance output, etc.) is not an element specific to the present invention, and is shown as the navigation unit 30 and details are omitted. To do.

  Reference numeral 31 denotes display screen switching means for switching from the guidance map display data to an audio screen that does not display a map. The display screen switching means 31 includes the following means 31a and 31b. 31a is a guide route analysis unit that detects a monotonous road section with a complicated route from the guide routes calculated by the navigation unit 30. Further, 31b determines whether or not the guide route analysis unit 31a includes a monotonous road section in the guide route, and map data is displayed when an uncomplicated monotonous road section is detected. It is a screen switching unit that switches the display from the screen to the audio screen.

  Reference numeral 32 denotes information extraction means for extracting vehicle information such as the traveling speed, traveling distance, and traveling time of the host vehicle. Specifically, the following means 32a to 32e are provided.

  32 a is a vehicle speed extraction unit that extracts the traveling speed of the host vehicle through the vehicle information acquisition unit 12, and 32 b is a travel distance extraction unit that extracts the travel distance acquired by the vehicle information acquisition unit 12. 32c is a vehicle direction extracting unit that extracts a direction that is position information of the vehicle through a positioning technique such as GPS or gyro of the vehicle information acquisition unit 12. 32 d is a guidance point extraction unit that extracts position information of guidance points such as intersection information and crossing information for turning right and left from the road map data stored in the storage unit 13. 32 e is a travel time extraction unit that extracts the travel time of the host vehicle from the vehicle information acquisition unit 12.

  Reference numeral 33 denotes a data analysis unit that analyzes and quantifies vehicle information extracted by the information extraction unit 32 in order to apply each parameter described later. For example, when the traveling speed is extracted from the vehicle speed extracting section 32a of the information extracting means 32, the data analyzing section 33 calculates how much the actually extracted speed corresponds to the traveling speed of 100 km / h as 100%. Each parameter is applied to a mark drawn on the screen according to the ratio.

  A drawing mark application unit 34 applies predetermined parameters to marks to be drawn on the screen based on the vehicle information quantified by the data analysis unit 33. Specifically, the following means 34a to 34e are provided. The data analysis unit 33 and the drawing mark application unit 34 correspond to a drawing mark determination unit.

  34a is a display number determining unit that changes the number of marks to be drawn on the screen based on the quantified vehicle data. For example, when the traveling speed of the host vehicle extracted by the vehicle speed extraction unit 32a increases, the display number determination unit 34a has a function of increasing the number of marks to be displayed at a constant rate according to the increase rate.

  Reference numeral 34b denotes a display size determination unit that changes the size of a mark to be drawn on the screen based on the quantified vehicle data. For example, when the travel distance extracted by the travel distance extraction unit 32b increases, the display size determination unit 34b has a function of increasing the size of a mark to be displayed at a constant rate according to the increase rate.

  Reference numeral 34c denotes a left / right ratio determination unit that changes the left / right ratio of a mark to be drawn on the screen based on the quantified vehicle data. The left / right ratio determining unit 34c, for example, determines the next intersection or the like from the direction information of the vehicle extracted by the vehicle direction extracting unit 32c, the guidance point information extracted by the guidance point extracting unit 32d, and the guidance route information. When the information to turn left at the guidance point is acquired, the direction to turn left from the direction of the host vehicle is quantified, and the mark on the screen is displayed on the left side of the screen at a constant rate according to the quantified data .

  34d is a color determination unit that changes the color of the mark drawn on the screen based on the quantified vehicle data. For example, the color determination unit 34d changes the luminance of the color attached to the mark. When the travel time extracted by the travel time extraction unit 32e increases, the color is displayed on the mark displayed according to the increase rate. It has a function to apply high color.

  34e is an image application unit that applies an image as a mark, not a figure or a symbol, on the screen based on the quantified vehicle data. For example, when the travel distance extracted by the travel distance extraction unit 32b increases, the image application unit 34e has a function of switching and displaying an image for each increase rate.

  Reference numeral 35 denotes image processing means for outputting, to the display unit 7, a graphic, symbol, or an image mark to which each parameter is applied based on the vehicle data by the drawing mark determination means 34.

[2. Action]
[2.1. Processing procedure (1)]
Next, the processing procedure of this embodiment is demonstrated based on the flowchart of FIG. Here, in this embodiment, three types (A, B, C) of marks to be displayed are used, and the traveling speed of the host vehicle extracted by the vehicle speed extracting unit 32a and the traveling distance extracted by the traveling distance extracting unit 32b are used. The mark B is applied to the direction of the guidance point acquired from the vehicle direction extraction unit 32c, the guidance point extraction unit 32d, and the guidance route information, and the travel time extracted by the travel time extraction unit 32e. For the sake of easy understanding, the processing procedure will be described separately for each mark.

  Further, as a parameter to be applied, the displayed number of marks determined by the display number determining unit 34a is applied to the traveling speed of the host vehicle extracted by the vehicle speed extracting unit 32a, and the traveling distance extracted by the traveling distance extracting unit 32b is applied. The mark display size determined by the display size determination unit 34b is applied. The left / right ratio of the mark displayed on the screen determined by the left / right ratio determination unit 34c is applied to the direction information of the guidance point acquired from the vehicle direction extraction unit 32c, the guidance point extraction unit 32d, and the guidance route information, and the travel time The color of the mark determined by the color determination unit 34d is applied to the travel time extracted by the extraction unit 32e.

[2.1.1. In case of mark A (Fig. 2)]
First, the guide route analysis unit 31a detects a monotonous road section from which routes are not complicated even if map data is not displayed from the routes calculated by the navigation unit 30 (STEP 201). When the guide route analysis unit 31a detects a monotonous road section in the guide route, the screen switching unit 31b switches the display from the screen displaying the map data to the audio screen not displaying the map data (STEP 202). .

  Here, the traveling speed of the own vehicle acquired by the vehicle information acquisition unit 12 is extracted by the vehicle speed extraction unit 32a (STEP 203). Further, the travel distance extraction unit 32b extracts the travel distance acquired by the vehicle information acquisition unit 12 (STEP 204).

  Then, the data analysis unit 33 analyzes the travel speed acquired by the vehicle speed extraction unit 32a and the travel distance extracted by the travel distance extraction unit 32b and quantifies them in order to apply the parameters (STEP 205). Next, the display number determination unit 34a of the drawing mark determination unit 34 reads the display number parameter recorded in the storage unit 13 and displays it on the screen based on the quantified traveling speed data of the vehicle. The number of marks A to be displayed is determined (STEP 206). For example, when a parameter for increasing the number of marks A by 3 each time the traveling speed increases by 10 km / h is recorded in the storage unit 13, if the extracted traveling speed is 40 km / h, the mark A is It is adjusted to display 12 (3 × 4) (FIG. 3).

  Further, the display size determination unit 34b of the drawing mark determination unit 34 reads the display size parameter recorded in the storage unit 13, and displays the mark on the screen based on the quantified travel distance data of the vehicle. The size of A is determined (STEP 207). For example, when a parameter for increasing the initial display area of the mark A by 50% is recorded in the storage unit 13 every time the travel distance approaches 10 km, the display area of the mark A is This is twice the initial display area (200%) (FIG. 4).

  Then, the image processing means 35 displays the display size mark A determined by the display size determining unit 34b on the screen of the display unit 7 with the display number determined by the display number determining unit 34a (STEP 208). Note that the steps from STEP 205 to STEP 208 are repeatedly performed every time the traveling speed of the host vehicle is extracted by the vehicle speed extracting unit 32a and every time the traveling distance of the host vehicle is extracted by the traveling distance extracting unit 32b.

[2.1.2. In the case of mark B (Fig. 5)]
First, similarly to the processing procedure in the case of the mark A, when the guide route analysis unit 31a detects a monotonous road section from the guide route, the screen switching unit 31b extracts the map data from the screen displaying the map data. The display is switched to an audio screen that is not displayed (STEPs 501 and 502).

  Here, the own vehicle direction extraction unit 32c extracts the direction information which is the position information of the own vehicle acquired by the positioning technology such as GPS or gyro of the vehicle information acquisition unit 12 (STEP 503). Further, the guidance point extraction unit 32d extracts guidance point position information such as intersection information and crossing information for turning right and left based on the road map data from the guidance route calculated by the navigation unit 30 (STEP 504).

  The data analysis unit 33 then travels at the guidance point extracted by the guidance point extraction unit 32d based on the direction information of the vehicle extracted by the vehicle direction extraction unit 32c and the guide route information from the navigation unit 30. Are analyzed and quantified to apply the parameters (STEP 505).

  Next, the left / right ratio determination unit 34c of the drawing mark determination unit 34 reads the left / right ratio parameter recorded in the storage unit 13, and based on the azimuth data of the traveling direction at the quantified guidance point, the screen The right / left ratio of the mark B to be displayed is determined (STEP 506).

  For example, when the storage unit 13 has eight directions such as north, northwest, and west, the direction when turning left at the guidance point is shifted to the left or right by one division compared to the direction of the current position of the vehicle. It is assumed that a parameter for moving the one-segment mark B to the left or the right from the center position of the display screen divided vertically into five is recorded. Under this condition, if the azimuth data that is quantified in the direction of travel of the guidance point that is actually extracted is shifted to the left by two compared to the azimuth at the current position of the vehicle, the mark B is divided into five equal parts on the screen. It will move to the left end (two sections from the center position to the left) (FIG. 6).

  Then, the image processing means 35 displays the mark B on the screen of the display unit 7 at the left / right ratio applied by the left / right ratio determination unit 34c (STEP 507). The steps from STEP 505 to STEP 507 are repeated every time the direction information of the own vehicle is detected by the own vehicle direction extraction unit 32c and the position information of the guidance point is extracted by the guidance point extraction unit 32d.

[2.1.3. In the case of mark C (Fig. 7)]
First, similarly to the processing procedure in the case of the marks A and B, when the guide route analyzing unit 31a detects a monotonous road section from the guide route, the screen switching unit 31b displays the map from the screen displaying the map data. The display is switched to an audio screen that does not display data (STEPs 701 and 702).

  Here, the travel time extraction unit 32e extracts the travel time of the host vehicle acquired by the vehicle information acquisition unit 12 (STEP 703), and the data analysis unit 33 analyzes the extracted travel time and applies it to the parameters. Quantify (STEP 704). Then, the color determination unit 34d of the drawing mark determination unit 34 determines a color to be added to the mark C displayed on the screen based on the color parameter recorded in the storage unit 13 based on the quantified travel time data ( (STEP705). For example, when a parameter is recorded in the storage unit 13 that the color of the mark C changes to a high-brightness color at a constant rate every time the travel time increases by 30 minutes, the actually extracted travel time exceeds 2 hours. If this is the case, the mark C has a color that is four steps higher in luminance than the beginning of travel.

  Then, the image processing means 35 displays the mark C having the color determined by the color determination unit 34d on the screen of the display unit 7 (STEP 706). The procedure from STEP 704 to STEP 706 is repeatedly performed every time the travel time of the host vehicle is extracted by the travel time extraction unit 32e.

  As described above, according to the present embodiment, on the screen switched to the audio screen, the mark linked to the vehicle speed, the travel distance, the travel time, the direction, and the guidance point information is displayed to the user sensuously. In contrast, guidance information and the like can be transmitted. That is, by displaying a mark linked to the traveling speed and traveling time, it is possible to visually convey the danger of overspeeding, the timing of a break, and the like. By displaying a mark linked to the travel distance, the distance to the destination can be transmitted sensuously, so when arriving at the destination, it can be notified to the user in a simple way. It is also possible to concentrate on driving if there is a time to reach the destination. Furthermore, by displaying a mark linked to the direction and guidance point information, it is possible to sensibly convey information such as the direction of travel at the guidance point rather than displaying the guidance route with text information. It is possible to drive safely without any problems.

[2.2. Processing procedure (2)]
Next, the processing procedure of this embodiment when displaying an image instead of a mark such as a small figure or symbol on the screen will be described based on the flowchart of FIG. As an applied parameter, the image specified by the image application unit 34e is applied to the travel distance extracted by the travel distance extraction unit 32b.

  First, similarly to the processing procedure in the case of FIGS. 2, 5, and 7, when the guide route analyzing unit 31a detects a monotonous road section from the guide route, the screen switching unit 31b displays the map data. The display is switched to an audio screen that does not display map data (STEP 801, 802).

  Here, the travel distance extraction unit 32b extracts the travel distance information acquired by the vehicle information acquisition unit 12 (STEP 803). Then, the data analysis unit 33 analyzes the travel distance information extracted by the travel distance extraction unit 32b, and quantifies it in order to apply the parameters (STEP 804).

  Next, the image application unit 34e of the drawing mark determination unit 34 reads the image parameter recorded in the storage unit 13, and determines an image to be displayed on the screen based on the quantified travel distance data ( (STEP805). For example, when the distance to the destination is divided into 10 km sections in the storage unit 13 and parameters for applying a specified image are stored for each section, the actually extracted travel distance is 40 km The image corresponding to the fourth section is applied as the display image.

  Then, the image processing means 35 outputs the image applied by the image application unit 34e on the screen of the display unit 7 (STEP 806). The steps from STEP 804 to STEP 806 are repeated each time the travel distance is extracted by the travel distance extraction unit 32b.

[2.3. Image parameter example (FIGS. 9 and 10)]
Here, an example of the image parameters recorded in the storage unit 13 applied by the image application unit 34e will be described. As shown in FIGS. 9 and 10, when the distance to the destination is 70 km, the distance is divided into 8 sections, and 8 types of image data based on the solar system are applied.

  First, when the distance to the destination is longer than 60 km and equal to or shorter than 70 km as the first division, image data of a space without a planet is applied (SCENE 1). If the distance to the target is longer than 50 km and not longer than 60 km as the second section, the image data of Pluto is applied (SCENE 2).

  As a third category, when the distance to the target is longer than 40 km and not longer than 50 km, the image data of Neptune is applied (SCENE 3). As a fourth category, when the distance to the target is longer than 30 km and not longer than 40 km, Uranus image data is applied (SCENE 4).

  As a fifth category, when the distance to the target is longer than 20 km and not longer than 30 km, the image data of Saturn is applied (SCENE5). As a sixth category, when the distance to the target is longer than 10 km and not longer than 20 km, Jupiter image data is applied (SCENE 6). As a seventh category, when the distance to the target is longer than 0 km and not longer than 10 km, the image data of Mars is applied (SCENE 7). As an eighth section, when the distance to the target is 0 km, the Earth image scene data is applied (SCENE 8).

  As described above, this image parameter example has a characteristic that the image data is switched in the order of Pluto, Neptune, Uranus, Saturn, Jupiter, Mars, and Earth from the space without a planet as the travel distance approaches the destination.

[3. Other Embodiments]
The present invention is not limited to the above-described embodiment, and includes an embodiment in which a mark of a two-dimensional image that is a small figure, symbol, or image is switched to a mark of a three-dimensional image in the processing procedures (1) and (2). . Here, the two-dimensional image is taken as a two-dimensional image on the screen of the display unit, and the three-dimensional image is taken as a three-dimensional image by adding a z-axis thereto.

  It is assumed that the mark D of the three-dimensional image is displayed on the traveling speed of the own vehicle extracted by the vehicle speed extraction unit 32a. Note that since the mark D is a three-dimensional image, as a parameter to be applied, for example, the three-dimensional newly provided with the two-dimensional display size of the mark D determined by the display size determining unit 34b with respect to the traveling speed of the own vehicle A three-dimensional coordinate change determined by the direction coordinate determination unit 34f can also be applied (FIG. 11). The processing procedure in this case will be described based on the flowchart of FIG.

  First, similarly to the processing procedure in the case of mark diagrams 2, 5, and 7, when the guide route analysis unit 31a detects a monotonous road section from the guide route, the screen switching unit 31b displays the map data. The display is switched from the screen to an audio screen that does not display map data (STEPs 1201 and 1202).

  Here, the traveling speed of the host vehicle acquired by the vehicle information acquisition unit 12 is extracted by the vehicle speed extraction unit 32a (STEP 1203). Then, the data analysis unit 33 analyzes the travel speed extracted by the vehicle speed extraction unit 32a, and quantifies it in order to apply two types of parameters (STEP 1204).

  Next, the display size determination unit 34b of the drawing mark determination unit 34 reads the display size parameter recorded in the storage unit 13, and displays the mark on the screen based on the quantified traveling speed of the vehicle. The size of D is determined two-dimensionally (STEP 1205). Further, the three-dimensional direction coordinate determination unit 34f reads the three-dimensional direction coordinate change parameter recorded in the storage unit 13, and determines the three-dimensional direction coordinate change based on the quantified travel speed (STEP 1206).

  Then, the image processing unit 35 outputs the mark D in which the coordinates in the three-dimensional direction are changed with the display size determined by the display size determining unit 34b on the screen of the display unit 7 (STEP 1207). The steps from STEP 1204 to STEP 1207 are repeatedly performed every time the traveling speed of the host vehicle is extracted by the vehicle speed extracting unit 32a.

  Further, the present invention is not limited to the embodiment in which the mark changed according to the vehicle information is displayed, and includes an embodiment in which the mark is realized by continuous animation display. As an example, a description will be given based on the processing procedure (2) using an image as a display target instead of a small figure or symbol.

  In the processing procedure (2), the image application unit 34e of the drawing mark determination unit 34 reads the image parameters recorded in the storage unit 13 and displays them on the screen based on the vehicle data such as the quantified travel distance. Although the image is determined, the basic principle of this embodiment is not changed. In other words, animation display is realized by continuously displaying a plurality of images according to vehicle data obtained by quantifying a plurality of images. Specifically, parameters such as how many frames are continuously displayed per second and how many frames are displayed as the mileage advances by 10 m are recorded in the storage unit 13 in advance. It is applied based on the vehicle data actually extracted. It is assumed that an image corresponding to the number of frames is stored in the storage unit 13 in advance.

  Thereby, it becomes possible to continuously display images according to the vehicle data, and an animation display is realized. In addition, when the display target is not only an image but also a mark such as a small figure or symbol, for example, when the display size parameter is applied to quantified travel time data that is vehicle information, the display size is increased per second. An animation can be displayed by continuously displaying the marks of a plurality of frames in which gradually changes.

Functional block diagram showing a configuration of an embodiment of the present invention A flowchart (mark A) showing an operation in the embodiment of the present invention. Display example (1) of the mark A in the embodiment of the present invention Display example of mark A in the embodiment of the present invention (2) Flowchart (Mark B) showing the operation in the embodiment of the present invention Display example of mark B in the embodiment of the present invention Flowchart (Mark C) showing the operation in the embodiment of the present invention Flowchart (image) showing the operation in the embodiment of the present invention Animation parameter example (1) Example of animation parameters (2) Functional block diagram showing the configuration of another embodiment of the present invention The flowchart which shows the effect | action in other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... FM multiplex reception and processing part 2 ... Beacon reception and processing part 3 ... Processing part (Main CPU and its peripheral circuit)
DESCRIPTION OF SYMBOLS 30 ... Navigation part 31 ... Display screen switching means 31a ... Guide route analysis part 31b ... Screen switching part 32 ... Information extraction means 32a ... Vehicle speed extraction part 32b ... Traveling distance extraction part 32c ... Own vehicle direction extraction part 32d ... Guidance point extraction Section 32e ... Travel time extraction section 33 ... Data analysis section 34 ... Drawing mark determination means 34a ... Display number determination section 34b ... Display size determination section 34c ... Left / right ratio determination section 34d ... Color determination section 34e ... Image application section 34f ... Three-dimensional Direction coordinate determination unit 35 ... image processing means 4 ... dynamic RAM (DRAM)
5. Static RAM (SRAM)
6 ... ROM
7 ... Display 8 ... Video RAM (VRAM)
9. Input unit (touch key control device)
DESCRIPTION OF SYMBOLS 10 ... User interface part 11 ... TV reception and processing part 12 ... Vehicle information acquisition part 13 ... Memory | storage part M ... Main memory

Claims (15)

An input unit that receives input from the user, a storage unit that stores road map data for route search in advance, a detection unit that detects the position of the host vehicle, and vehicle information that acquires vehicle information according to the traveling of the host vehicle An acquisition unit, a guidance processing unit for calculating an optimum route and a guidance guidance process from the vehicle position detected from the detection unit and the destination information set through the input unit, a display unit for displaying information, In a navigation device comprising
Information extracting means for extracting vehicle information that fluctuates according to the traveling of the vehicle;
In accordance with the amount of change in the vehicle information extracted by the information extraction means, a mark to be drawn on the display unit is determined based on any of the changing number, position, size, color indicating parameters, or a combination thereof. Drawing mark determination means;
Image processing means for outputting the determined mark to the display unit;
A navigation device comprising:   The navigation apparatus according to claim 1, wherein the mark to be drawn on the display unit includes an image. The vehicle information includes any of the traveling speed, traveling distance, traveling time of the host vehicle,
The drawing mark determination means
3. The display number determination unit according to claim 1, further comprising a display number determination unit configured to change a display number of marks to be drawn on the display unit according to an increase or decrease in any of the travel speed, the travel distance, and the travel time. Navigation device. The vehicle information includes any of the traveling speed, traveling distance, traveling time of the host vehicle,
The drawing mark determination means
4. A display size determination unit that changes a display size of a mark to be drawn on the display unit according to any increase or decrease in the travel speed, the travel distance, or the travel time. The navigation device according to item. The vehicle information includes any of the traveling speed, traveling distance, traveling time of the host vehicle,
The drawing mark determination means
5. The color determination unit according to claim 1, further comprising a color determination unit configured to determine a change in a color attached to a mark drawn on the display unit in accordance with any increase or decrease in the travel speed, the travel distance, or the travel time. The navigation device according to claim 1. The vehicle information includes direction information of the own vehicle,
The road map data includes guidance point position information,
The drawing mark determination means
When information on the vehicle turning right or left at the guidance point is acquired from the direction information and the position information of the guidance point and the guidance route information calculated by the guidance processing unit, the right / left turn information is obtained. The navigation apparatus according to claim 1, further comprising a left / right ratio determining unit that determines a right / left ratio of a mark to be drawn on the display unit based on the display.   The navigation apparatus according to claim 1, wherein the change of the mark is realized by continuous animation display. An input unit that receives input from the user, a storage unit that stores road map data for route search in advance, a detection unit that detects the position of the host vehicle, and vehicle information that acquires vehicle information according to the traveling of the host vehicle An acquisition unit, a guidance processing unit for calculating an optimum route and a guidance guidance process from the vehicle position detected from the detection unit and the destination information set through the input unit, a display unit for displaying information, In a method for controlling a navigation device comprising:
An information extraction step of extracting vehicle information that varies according to the travel of the vehicle;
In accordance with the amount of change in the vehicle information extracted in the information extraction step, a mark to be drawn on the display unit is determined based on any of the number, position, size, color indicating the change, or a combination thereof. A drawing mark determination step;
An image processing step of outputting the determined mark to the display unit;
The control method of the navigation apparatus characterized by performing this.   The navigation apparatus control method according to claim 8, wherein the mark to be drawn on the display unit is composed of an image. The vehicle information includes any of the traveling speed, traveling distance, traveling time of the host vehicle,
The drawing mark determination step includes
The display number determination step of changing the number of marks to be drawn on the display unit according to any increase or decrease in the travel speed, travel distance, or travel time is performed. A control method of the described navigation device. The vehicle information includes any of the traveling speed, traveling distance, traveling time of the host vehicle,
The drawing mark determination step includes
The display size determination step of changing a display size of a mark to be drawn on the display unit according to any increase / decrease in the travel speed, travel distance, or travel time is performed. 2. A method for controlling a navigation device according to item 1. The vehicle information includes any of the traveling speed, traveling distance, traveling time of the host vehicle,
The drawing mark determination step includes
The color determination step of determining a change in color attached to a mark drawn on the display unit according to any increase / decrease in the travel speed, travel distance, or travel time. The control method of the navigation apparatus of any one of Claims. The vehicle information includes direction information of the own vehicle,
The road map data includes guidance point position information,
The drawing mark determining step includes:
When information on the vehicle turning right or left at the guidance point is acquired from the direction information and the position information of the guidance point and the guidance route information calculated by the guidance processing unit, the right / left turn information is obtained. The navigation device control method according to any one of claims 8 to 12, wherein a left / right ratio determining step for determining a left / right ratio of a mark to be drawn on the display unit is executed based on the method.   The method for controlling a navigation device according to any one of claims 8 to 13, wherein the change of the mark is realized by continuous animation display. An input unit that receives input from the user, a storage unit that stores road map data for route search in advance, a detection unit that detects the position of the host vehicle, and vehicle information that acquires vehicle information according to the traveling of the host vehicle An acquisition unit, a guidance processing unit for calculating an optimum route and a guidance guidance process from the vehicle position detected from the detection unit and the destination information set through the input unit, a display unit for displaying information, In a control program for a navigation device comprising
This program is stored in the guidance processing unit.
An information extraction process for extracting vehicle information that fluctuates according to the traveling of the vehicle;
In accordance with the amount of change in the vehicle information extracted by the information extraction process, a mark to be drawn on the display unit is determined based on any one of the number, position, size, color indicating the change, or a combination thereof. Drawing mark determination processing;
Image processing for outputting the determined mark to the display unit;
A control program for a navigation device, characterized in that