JP2009250692A - Car navigation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a car navigation apparatus which displays traffic restriction information on a travel route for a vehicle driven by a driver. <P>SOLUTION: The car navigation apparatus 1 is installed in a vehicle provided with a direction indicator 208 and a steering angle sensor 209 and shows traffic restriction information by display and/or voice. The apparatus 1 comprises: a travel direction information acquisition means for acquiring direction indication information from the direction indicator 208 and steering angle information from the steering angle sensor 209; a travel route determination means 201 for determining a travel route for the vehicle on the basis of the direction indication information and/or steering angle information acquired by the travel direction information acquisition means; and a display output control means 204 for controlling the display/voice output of traffic restriction information. The display output control means 204 performs both display and voice output only for the traffic restriction information on the travel route determined by the travel route determination means 201. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a car navigation apparatus.

  The Vehicle Information & Communication System (hereinafter referred to as VICS) is the Japan Road Traffic Information Center that processes and edits collected traffic information such as traffic jams, accidents, construction, and parking lot availability. This system transmits edited traffic information to vehicles through radio beacons, optical beacons, and FM multiplex broadcasting. This traffic information includes (traffic) regulation information such as traffic jams, accidents, construction, parking lot fullness, etc., traffic closures due to accidents or construction, and one-way traffic.

  The traffic information transmitted from the VICS is displayed on, for example, a car navigation device mounted on the vehicle. The car navigation device identifies a destination set based on the operation of the passenger's input unit / POI (Point of Interest) information, etc., and receives information from a GPS (Global Positioning System) satellite and detailed information in the map database. Based on the map information, the route to the destination, distance, estimated time, etc. are navigated. In addition, it is an apparatus that provides information by searching for main facilities stored in the map database by genre (station, facility, sightseeing spot, hot spring, restaurant, etc.). On the screen, the traffic information is reflected on characters and marks on the map and displayed to the driver.

  However, in such a conventional car navigation device, all received traffic information is displayed for each point. Various information such as road information, signs, and peripheral facility information (gas station, restaurant, etc.) is also displayed on the screen of the car navigation device. If all traffic information is displayed, the screen becomes complicated. Sometimes, traffic information on roads that are not traveling is displayed, but this is often unnecessary. The screen display is preferably concise and easy to see so that the driver can easily recognize necessary information.

  By the way, in the conventional car navigation apparatus, the traffic information has to be navigated only on the screen display. For example, when there are a plurality of traffic information, it is necessary to read out all of them in order to provide voice guidance. Furthermore, at intersections with continuous traffic regulation information, taking GPS errors into account, it is difficult to convey by voice on narrow and complicated roads such as residential areas, and sometimes there is a high possibility that it will not function at all.

  The invention described in Patent Document 1 displays road map data storage means, current position detection means, and map data in the vicinity of the position detected by the current position detection means from the road map data storage means. In a navigation apparatus comprising a control means for creating data and a road map display means for displaying display data created by the control means, a storage means for traffic regulation information is provided, and the information in the storage means for the traffic regulation information is provided. Based on this, when the control means detects that there is a road in the vicinity of the current position detected by the detection means that is restricted from traveling in a direction substantially coincident with the traveling direction of the vehicle, the restricted road A car navigation device is described in which display data for changing the display mode is created.

According to the invention described in Patent Document 1, when there is a road that is restricted from passing in a direction that substantially matches the traveling direction of the vehicle, display data that changes the display mode of the restricted road is created. Since the traffic regulation information of the road ahead where the host vehicle is traveling is displayed, the screen display of the navigation device contributes to improving the driver's recognition.
Japanese Patent No. 2910515

  Here, if the destination setting is made in the car navigation device, since the traveling path and the traveling route are known, if the screen display is limited to only the traffic information on the traveling route or the traveling route, The complexity of the screen can be avoided. However, in the navigation device, when the destination setting is not set and the current location and the map are displayed, or when the destination setting is set and the route is out of the guide route, the traveling route or the traveling route Since it cannot be specified, the screen display becomes complicated by displaying all the traffic information as described above. This is particularly noticeable in the city center because roads are complex and traffic regulations are frequently imposed.

  The invention described in Patent Document 1 displays traffic regulation information in the traveling direction of the host vehicle, but it is difficult to cope with the travel path change destination on which the host vehicle travels.

  In view of the above problems, an object of the present invention is to provide a car navigation device that displays traffic regulation information related to a traveling path of a vehicle driven by a driver.

In order to achieve the above object, a car navigation device according to a first aspect of the present invention is a car navigation device that is mounted on a vehicle including a direction indicator and a steering angle sensor, and that displays traffic regulation information and / or provides voice guidance. ,
Traveling direction information acquisition means for acquiring direction instruction information from the direction indicator and steering angle information from the steering angle sensor;
A travel path determination unit that determines a travel path of the vehicle based on the direction instruction information and / or the steering angle information acquired by the travel direction information acquisition unit;
Display output control means for controlling the display and audio output of the traffic regulation information,
The display output control means performs both display and audio output only on the traffic regulation information related to the travel path determined by the travel path determination means.

A second invention is the car navigation device according to the first invention,
The direction indicator has a touch sensor,
The traveling direction information acquisition means acquires direction indication information from the touch sensor,
The travel path determination means determines the travel path of the vehicle based on direction indication information acquired from the touch sensor.

3rd invention is the car navigation apparatus which concerns on 1st or 2nd invention,
The direction indicator has a load sensor,
The traveling direction information acquisition means acquires direction indication information from the load sensor,
The travel path determination means determines the travel path of the vehicle based on direction indication information acquired from the load sensor.

4th invention is the car navigation apparatus which concerns on 1st, 2nd or 3rd invention,
The direction indicator has a vibration device,
The display output control means drives the vibration device when displaying the traffic regulation information and outputting sound.

  In addition, what applied the arbitrary combination of the component of this invention, expression, or a component to a method, an apparatus, a system, a computer program, a recording medium, etc. is also effective as an aspect of this invention.

  ADVANTAGE OF THE INVENTION According to this invention, the car navigation apparatus which displays the traffic regulation information regarding the advancing path of the vehicle which a driver | operator drives can be provided.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

[Example 1]
(System configuration)
FIG. 1 is a system configuration diagram showing a main configuration of an embodiment of a car navigation apparatus 1 according to the present invention. The car navigation device 1 includes a CPU (Central Processing Unit) 2, a ROM (Read Only Memory) 3, a RAM (Random Access Memory) 4, an auxiliary storage device 5, a communication device 6, an interface device 7, a GPS 8, The configuration includes a gyro sensor 9, an input device 10, a display device 11, and an audio output device 12. The car navigation device 1 according to the present invention is configured to receive signals from the vehicle speed sensor 15, the turn signal lever switch 16, and the steering angle sensor 17.

  The car navigation apparatus 1 according to the present invention detects a current location of a vehicle (hereinafter referred to as “own vehicle position”) and displays a road map around the own vehicle position, and a recommended route from a departure point to a destination. And a function for performing route guidance based on the calculated recommended route. The car navigation device 1 is a device that performs so-called navigation or road guidance. The car navigation device 1 uses a display screen or the like based on information received from a GPS (Global Positioning System) satellite and detailed map information in a map database, a current route, a travel route to a destination, a distance, an estimated time, etc. To navigate. Moreover, based on the traffic information received by VICS, the traffic information including traffic regulation information is displayed on a display screen or the like. Further, the car navigation device 1 according to the present invention determines the traveling path of the host vehicle based on information from a direction instruction input device (direction indicator) and a steering angle sensor of the steering, and displays traffic regulation information related to the traveling path. To do. Details will be described below.

  The CPU 2 is composed of a microprocessor and its peripheral circuits, and is a circuit that controls the entire apparatus. The ROM 3 is a memory for storing a predetermined control program (software component) executed by the CPU 2, and the RAM 4 is used for various controls by the CPU 2 executing a predetermined control program (software component) stored in the ROM 3. This is a memory used as a work area (work area) when performing. Therefore, the CPU 2 performs a predetermined route search process based on the map data stored in the predetermined storage area, and the processing result is displayed as a recommended route.

  The auxiliary storage device 5 is a device that stores various types of information such as road map data (map database) and POI information (Point of Interest, information on sightseeing spots and various facilities) used for navigation processing, and is a non-volatile storage device. A certain HDD (Hard Disk Drive) is used. The various information may be stored in a storage medium such as a CD-ROM (Compact Disk-ROM) and a DVD (Digital Versatile Disk) in addition to the auxiliary storage device 5 and stored in these storage media. Various types of information can be read via a drive device (not shown). Therefore, various information can be obtained by setting the recording medium in the drive device as necessary.

  The road map data is information relating to a map and includes map display data, route search data, guidance data (intersection name / road name / direction name / direction guide facility information, etc.), and the like. The map display data is data for displaying a road or a background of a road map. The route search data is data including branch information that is not directly related to the road shape, and is mainly used when calculating (route search) a recommended route. The guidance data is data including names of intersections and the like, and is used when guiding a recommended route to a driver or the like based on the calculated recommended route.

  The communication device 6 is a device that receives traffic information such as traffic jam information from the VICS through radio wave beacons, optical beacons, and FM multiplex broadcasting. The traffic information received by the communication device 6 includes traffic restriction information such as traffic jams, accidents, construction, parking space fullness, etc., as well as traffic closures due to accidents or construction.

  The interface device 7 performs bi-directional data communication between an external system composed of other devices (external devices) mounted on the vehicle and the car navigation device 1 via a data transmission path (not shown). Device. Accordingly, by acquiring predetermined information from the external system, new information provision is realized in the car navigation device 1 (function expansion can be performed). The car navigation device 1 according to the present invention receives signals from the vehicle speed sensor 15, the turn signal lever switch 16, and the steering angle sensor 17 via the interface device 7. This will be described in detail later.

  A GPS sensor 8 that detects a GPS signal from a GPS satellite and a gyro sensor 9 that detects the traveling direction of the vehicle are devices (own vehicle position specifying device) that detect the current location of the vehicle. Based on the current location of the vehicle detected by these current location detection devices, a map display range, a route search start point, and the like are determined, and the current location is displayed on the map.

  The input device 10 is a device for an operator to perform various input operations via the operation screen. The input device 10 includes a touch panel switch provided so as to be superimposed on the display screen of the display device 11 and a joystick for instructing movement of the cursor or scrolling of the display screen. Further, the input device 10 may be a remote control switch or a hardware key provided around the display screen.

  The display device 11 is a device that displays various data such as image data temporarily stored in an image memory (not shown) from the CPU 2 on a display screen. For example, on the display screen of the display device 11, a vehicle position mark indicating the vehicle position, route information, guidance information, and the like are displayed together with a road map. The display device 11 also displays an operation screen for an operator to make an operation request or setting for the function of the car navigation device 1. Further, the display device 11 determines the traveling path of the host vehicle based on the traffic information received by the VICS, information from the direction instruction input device (direction indicator), and the steering angle sensor of the steering, and traffic regulation regarding the traveling path. Display information.

  The sound output device 12 is, for example, a speaker and outputs sound and sound. Voice information is output such as route guidance and traffic information.

  Next, the vehicle speed sensor 15 is a sensor that is disposed on each wheel and detects the speed of the vehicle. The own vehicle speed information from the vehicle speed sensor is supplied for each predetermined period, and the car navigation device 1 always calculates and grasps the latest vehicle position and vehicle speed. The turn signal lever switch 16 is a switch provided in a direction indication input device (direction indicator), and a switch signal (right turn signal or left turn signal) is input from the interface device 7 of the car navigation device 1. The steering angle sensor 17 is a sensor provided in the steering unit and detects a steering angle. The steering angle signal is input from the interface device 7 of the car navigation device 1.

(Functional configuration)
FIG. 2 is a functional block diagram showing the main functional configuration of one embodiment of the car navigation apparatus 1 according to the present invention. The car navigation device 1 according to the present invention has a function including a traveling path determination unit 201, a host vehicle position specifying unit 202, a communication unit 203, a display output control unit 204, a drawing unit 205, a display unit 206, and a voice output unit 207. .

  The traveling path determination unit 201 determines a traveling path along which the vehicle travels. The traveling path determination unit 201 acquires direction instruction information and steering angle information from the direction instruction signal output unit 208 corresponding to the turn signal lever switch 16 and the steering steering angle acquisition unit 209 corresponding to the steering angle sensor 17, for example. (Corresponding to the traveling direction information acquisition means). The traveling path determination unit 201 determines a traveling path along which the vehicle travels based on the acquired direction instruction information and steering angle information. The determined traveling path information is passed to the display output control unit 204.

  The own vehicle position specifying unit 202 may be a function of a known car navigation device, and specifies the own vehicle position based on information from the GPS 8, the gyro sensor 9, the vehicle speed sensor 15, and road map data (map database). . The own vehicle position information is passed to the display output control unit 204.

  For example, the communication unit 203 corresponds to the communication device 6 and acquires traffic regulation information. The acquired traffic regulation information is passed to the display output control unit 204.

  The display output control unit 204 acquires the travel route information from the travel route determination unit 201, the own vehicle position information from the own vehicle position specifying unit 202, and the traffic regulation information from the communication unit 203, and displays them on the drawing unit 205 ( Control the traffic regulation information that is output. That is, only the traffic regulation information on the route determined as the traveling route is displayed, and the traffic regulation information on the other route (the route judged as not being the traveling route) is not displayed.

  The drawing unit 205 may be a function of a known car navigation device. Based on the vehicle position information, traffic information, and map information acquired from the vehicle position specifying unit 202, the communication unit 203, and road map data (map database). Image processing related to the display (drawing) image is performed.

  For example, the display unit corresponds to the display device 11 and displays images and characters related to maps, route guidance, traffic information, and the like.

  The audio output unit 207 corresponds to, for example, the audio output device 12 and outputs audio.

  In practice, these functional units are realized by a car navigation program executed by the CPU 2.

  The direction instruction signal output unit 208 corresponds to, for example, the turn signal lever switch 16 and outputs a direction instruction signal (information). For example, the steering angle acquisition unit 209 corresponds to the steering angle sensor 17 and outputs a steering angle signal (information).

(Operation)
FIG. 3 is a flowchart showing an embodiment which is an example of the flow of main processing realized by the car navigation device 1 of the present embodiment. Hereinafter, description will be given with reference to FIG.

  In step S301, the vehicle position specifying unit 202 specifies the vehicle position and the traveling direction. The direction of travel here refers to the direction in which the vehicle is traveling (for example, corresponding to the map). Turn left at the next intersection, turn right, or go straight on the road. It is not a concrete course.

  In step S302, the communication unit 203 acquires traffic regulation information.

  Proceeding to step S303, it is determined whether there is traffic regulation information at the next point. If there is traffic regulation information, proceed to the next step.

  In step S304, the traveling path determination unit 201 confirms whether a direction instruction signal (information) is input from the direction instruction signal output unit 208. If it is input, the process proceeds to step S305, and if it is not input, the process proceeds to step S307.

  In step S305, the traveling path determination unit 201 determines the traveling path of the vehicle based on the direction instruction information. The traveling path here refers to the road on which the vehicle travels (for example, corresponding to the map), such as turning left at the next intersection, turning right, or traveling straight on the road. It is. For example (see FIG. 4), when the direction indication information is a right turn signal at a point before the next crossing in the direction in which the vehicle travels, it is determined that the right turn route (right turn road) is the traveling route. On the other hand, for example (see FIG. 5), if the direction indication information is a right turn signal at a point before the next crossing intersection and there are a plurality of routes that can be turned to the right, the traveling path is determined to be NG. If the determination is OK, the process proceeds to step S306, and if the determination is NG, the process proceeds to step S307.

  Proceeding to step S306, the display output control unit 204 confirms whether or not there is traffic regulation on the traveling path (traveling path destination) determined as the traveling path in step S305 based on the own vehicle position and the traffic regulation information. . If there is traffic regulation, the process proceeds to step S310, and if there is no traffic regulation, the process ends.

In step S310, when there is traffic regulation, the display output control unit 204 displays the traffic regulation information on the traveling path (traveling path destination) on the screen and outputs the voice on the display unit 206 and the voice output unit 207. For example, the display device (display screen) displays information such as that there is a construction on the way ahead and the lane is reduced together with the image. In addition, a voice output device (speaker) outputs a voice to the effect of lane reduction during construction. That is, when there is traffic regulation information on the driver's travel route, only the traffic regulation information on the route is guided by a display / voice, and attention and a route change are promoted.

  Next, the process proceeds to step S307. The steering angle acquisition unit 209 acquires a steering angle signal (information) from the steering angle sensor 17, for example. For example, when the driver's steering operation is a straight-ahead operation, a steering angle such as 0 angle is acquired, and when the driver's steering operation is a right-turn operation, steering angles such as 30, 45, and 90 angles are acquired according to the right-turn road.

  In step S308, the travel path determination unit 201 determines the travel path of the vehicle based on the steering angle information. The traveling path here refers to the road on which the vehicle travels (for example, corresponding to the map), such as turning left at the next intersection, turning right, or traveling straight on the road. It is. For example (see FIG. 5), when the direction indication signal (information) is a right turn signal and there are a plurality of right-turnable routes at the point before the next crossing point where the vehicle travels, it proceeds based on the steering angle information. A road is determined. If the determination is OK, the process proceeds to step S309. If the determination is NG, the process ends. In addition, when the direction instruction information of step S304 is acquired, this information may also be considered and determined.

  Proceeding to step S309, the display output control unit 204 confirms whether there is traffic regulation on the travel path (travel path destination) determined as the travel path in step S308 based on the own vehicle position and traffic regulation information. . If there is traffic regulation, the process proceeds to step S310, and if there is no traffic regulation, the process ends. Since step S310 has been described above, the description thereof will be omitted.

  As described above, according to the car navigation apparatus 1 of the present embodiment, the travel path is determined based on the driver's operation, that is, the direction instruction or the steering operation, and only the traffic regulation information on the travel path is guided by display / sound. It is possible to prompt a route change. Further, while driving, voice guidance is desired rather than guidance on the display screen for safety reasons, but according to the car navigation device 1 of the present embodiment, traffic regulation information to be guided is only necessary information, so that It is also possible to provide traffic regulation information guidance with difficult voices. The driver can easily recognize the traffic regulation information from the screen and voice.

[Example 2]
The present embodiment is characterized in the direction instruction signal output unit 208 as compared with the first embodiment. A description will be given below.

(Direction signal output unit)
6 and 7 are diagrams illustrating the direction instruction signal output unit 208 in the present embodiment. The touch sensor and the load sensor described with reference to FIGS. 6 and 7 output a direction instruction signal and correspond to the direction instruction signal output unit 208 of FIG.

  FIG. 6 shows an example of a direction indicator, and the direction indication lever unit includes a touch sensor 601 (right turn recognition) and a touch sensor 602 (left turn recognition). When the driver touches the touch sensor, the sensor detects this and a detection signal is output to a touch sensor control unit (not shown). The touch sensor control unit inputs a direction instruction signal to the traveling path determination unit 201. For example, a right turn signal is detected from the touch sensor 601, and a left turn signal is detected from the touch sensor 602.

  FIG. 7 shows an example of a direction indicator, and the direction indicator includes a load sensor 701. When the driver touches the direction indicating lever portion, the load sensor 701 detects a direction indication from the load, and a detection signal is output to a load sensor control portion (not shown). The load sensor control unit inputs a direction instruction signal to the traveling path determination unit 201. For example, the load sensor 701 detects a right turn signal or a left turn signal based on the load direction.

  Direction indication information from the touch sensors 601 and 602 and the load sensor 701 is input to the traveling path determination unit 201. Since the subsequent processing flow is the same as that described with reference to FIG. 3, the description thereof is omitted (particularly, refer to step S304 in FIG. 3).

  As described above, according to the car navigation device 1 of this embodiment, the direction indication information is detected before the driver performs the direction indication operation, that is, the direction indication lever operation (stroke), and the traveling path is based on the direction indication information. It is possible to promptly guide only the traffic regulation information on the traveling path by display / voice and prompt attention and change of route.

(An example of traffic regulation information guidance)
Here, with reference to FIGS. 10 and 11, an example of guidance of traffic regulation information by the car navigation device 1 of the present invention (the first embodiment and the second embodiment) will be described. FIG. 10 shows how traffic regulation information is displayed on a conventional car navigation device. A vehicle that travels forward displays traffic regulation information such as “lane reduction” 1001, “under construction” 1002, and “no traffic” 1003 at the next point (intersection). Other peripheral facility information is also displayed. Traffic regulation information for all possible routes as the traveling path of the vehicle is displayed.

  FIG. 11 shows a state in which traffic regulation information is displayed by the car navigation device according to the present invention corresponding to the screen of FIG. A vehicle that travels forward displays traffic restriction information of only “no traffic” 1003 at the next point (intersection). According to the car navigation device of the present invention, only traffic regulation information about the traveling path of the vehicle is displayed and voice guidance is performed, so that the driver can easily recognize the traffic regulation information from the screen and voice. Also, since no extra information is displayed on the screen, annoyance is alleviated.

[Example 3]
FIG. 8 is a functional block diagram showing the main functional configuration of one embodiment of the car navigation apparatus 1 according to the present invention. Differences from the functional block diagram of FIG. 2 will be described. This embodiment is characterized by the vibration control unit 210 / vibration device. Hereinafter, description will be made with reference to FIGS.

(Vibration device)
FIG. 9 is a diagram illustrating a state in which the vibration device 901 according to the present embodiment is installed. The vibration device 901 described in FIG. 9 corresponds to the vibration device 901 in FIG. FIG. 9 shows an example of a direction indicator, and the direction indication lever unit includes a vibration device 901 such as a vibration motor.

  In step S310 of FIG. 3, when there is traffic regulation, the display output control unit 204 displays and outputs the traffic regulation information on the traveling path (traveling path destination) on the display unit 206 and the voice output unit 207. explained. The vibration device 901 operates in accordance with the display and output of traffic regulation information. The display output control unit 204 displays and outputs sound to the traffic regulation information display unit 206 and the audio output unit 207, and instructs the vibration control unit 210 to perform the (vibration) operation. In response, the vibration device 901 performs (vibration) operation. Note that the processing flow up to the operation of the vibration device 901 is as described with reference to FIG. 3 and thus will not be described. However, in this case, in step S310 of FIG. Display, audio output, and vibration output ”.

  As described above, according to the car navigation apparatus 1 of the present embodiment, when there is traffic regulation information on the traveling path, tactile recognition by vibration is possible in addition to recognition by display / voice. The driver can more easily recognize the traffic regulation information.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various modifications and substitutions are made to the above-described embodiments without departing from the scope of the present invention. be able to.

1 is a system configuration diagram showing a main configuration of an embodiment of a car navigation device 1 according to the present invention. It is a functional block diagram which shows the main function structures of one Embodiment of the car navigation apparatus 1 by this invention. It is a flowchart which shows the Example which is an example of the flow of the main processes implement | achieved by the car navigation apparatus 1 of a present Example. It is a figure explaining determination of a traveling path. It is a figure explaining determination of a traveling path. It is a figure which shows an example of the touch sensor of a direction indicator. It is a figure which shows an example of the load sensor of a direction indicator. It is a functional block diagram which shows the main function structures of one Embodiment of the car navigation apparatus 1 by this invention. It is a figure which shows an example of the vibration device of a direction indicator. It is a figure explaining an example of the guidance of the traffic regulation information by the conventional car navigation apparatus. It is a figure explaining an example of guidance of traffic regulation information by car navigation device 1 of the present invention.

Explanation of symbols

1 Navigation device 2 CPU
3 ROM
4 RAM
5 Auxiliary storage device 6 Communication device 7 Interface device 8 GPS
9 Gyro sensor 10 Input device 11 Display device 12 Audio output device
DESCRIPTION OF SYMBOLS 15 Vehicle speed sensor 16 Turn signal lever switch 17 Steering angle sensor 201 Travel path determination part 202 Own vehicle position specific part 203 Communication part 204 Display (output) information control part 205 Drawing part 206 Display part 207 Audio | voice output part 208 Direction instruction | indication signal output part 209 Steering steering angle acquisition unit 210 Vibration control unit 601 Touch sensor 602 Touch sensor 701 Load sensor 901 Vibration device

Claims (4)

A car navigation device that is mounted on a vehicle having a direction indicator and a steering angle sensor and that displays traffic regulation information and / or provides voice guidance,
Traveling direction information acquisition means for acquiring direction instruction information from the direction indicator and steering angle information from the steering angle sensor;
A travel path determination unit that determines a travel path of the vehicle based on the direction instruction information and / or the steering angle information acquired by the travel direction information acquisition unit;
Display output control means for controlling the display and audio output of the traffic regulation information,
The display output control means performs both display and audio output only for the traffic regulation information related to the travel path determined by the travel path determination means.
A car navigation device characterized by the above. The direction indicator has a touch sensor,
The traveling direction information acquisition means acquires direction indication information from the touch sensor,
The traveling path determination means determines a traveling path of the vehicle based on direction instruction information acquired from the touch sensor;
The car navigation device according to claim 1. The direction indicator has a load sensor,
The traveling direction information acquisition means acquires direction indication information from the load sensor,
The traveling path determination means determines a traveling path of the vehicle based on direction indication information acquired from the load sensor;
The car navigation device according to claim 1 or 2, characterized in that. The direction indicator has a vibration device,
The display output control means drives the vibration device when displaying the traffic regulation information and outputting sound.
The car navigation device according to any one of claims 1 to 3, wherein

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