JPH1194570A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device capable of daily use. SOLUTION: A navigation controller 1 is provided with a CPU 12, a gyro sensor 16, a ROM 18 and a RAM 20, etc., so as to judge an operation state parallelly with a normal navigation operation. The CPU 12 calculates a traveling distance and a car speed based on car speed pulses outputted from a car speed sensor 4 at every constant interval of time, calculates the rotation angle of a vehicle based on the output of the gyro sensor 16 and judges the operation state at the time of right and left turns and immediately before stoppage from the calculated results. Also, the CPU 12 displays message images at a display device 6, outputs message voice from a speaker 28 and informs a driver or the like at a prescribed timing based on the judged result.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle mounted on a vehicle,
The present invention relates to a navigation device that detects a position and a direction of a vehicle.

[0002]

2. Description of the Related Art In a conventional navigation apparatus, a map display function for displaying a map image around a position of a vehicle, which is an original function of the navigation apparatus, a search for a travel route to a destination, and the like. A route search / guidance function for guidance, a traffic jam information display function for displaying traffic jam information based on VICS information, and the like have been emphasized.

However, among these functions, a map display function, a route search / guidance function, and the like are effective functions when a route to a destination is not known by long-distance driving, for example, when commuting or shopping. It is not a very effective function when driving a vehicle in daily life. Also,
The congestion information display function is a function that can be used effectively on a daily basis in urban areas where traffic congestion occurs, but since traffic congestion does not often occur outside of urban areas, this function is a very effective function. is not. Therefore, even if a navigation device is purchased, it cannot always be said that there is an opportunity to use it effectively on a daily basis.

[0004] The present invention has been made in view of such a point, and an object of the present invention is to provide a navigation device that can be used on a daily basis.

[0005]

In order to solve the above-mentioned problems, a navigation device according to the present invention detects a vehicle speed and a rotation angle during normal running to determine a driving state, and determines the driving condition. A predetermined message is output based on the status. Such a determination of the driving state is performed irrespective of whether or not the traveling road is a frequently-traversed road and whether or not the traveling place is in an urban area. The navigation device can be used on a daily basis even when the navigation device is not used. The detection of the vehicle speed and the rotation angle described above is an operation routinely performed by many navigation devices, and can be dealt with only by changing the software.

In general, it is necessary to sufficiently decelerate when a vehicle turns at an intersection or the like, and to decelerate so as not to stop suddenly when stopping. Therefore, it is preferable that the above-described determination of the driving state is performed based on the traveling speed and the turning angle when the vehicle turns at an intersection or in consideration of the degree of deceleration when the vehicle stops. In particular, in the above-described driving state determination, it is difficult to set a common reference for all drivers because there are differences between vehicles and individual differences between drivers, but it is difficult to make a determination with a sense of game by providing entertainment. If the user enjoys the results, it is possible to use the navigation device, which is not frequently used, on a daily basis.

In addition, the relationship between the traveling speed or rotation angle of the vehicle and the result of the determination of the driving state is set in advance as a driving state determination table, and when the speed of the vehicle is detected, the driving state determination table is set. , The operation state is determined. Therefore, by referring to the preset driving state determination table, the driving state can be easily determined based on the detected vehicle speed and the like.

Further, the navigation device of the present invention notifies the above-mentioned message to the driver or the like in the form of an image or a sound, and can surely convey the content to the driver or the like. Moreover, the message image or the message voice output based on the determination result can be edited according to the preference of the driver or the like, and the entertainment can be enhanced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A navigation device according to an embodiment of the present invention detects a traveling state of a vehicle, determines a driving state, and displays a message image including a score and a picture according to the result. It has special features. Hereinafter, a navigation device according to an embodiment will be described with reference to the drawings.

(1) Overall Configuration of Navigation Apparatus FIG. 1 is a diagram showing the overall configuration of an on-vehicle navigation apparatus according to an embodiment to which the present invention is applied. The navigation device shown in FIG.
D-ROM device 2, vehicle speed sensor 4, display device 6
And an operation unit 8.

The navigation controller 1 controls the entire navigation device, and its detailed configuration and operation will be described later. CD-ROM device 2
One or a plurality of CD-ROMs can be loaded, and the map data is read from any one of the CD-ROMs under the control of the navigation controller 1.
The vehicle speed sensor 4 outputs a vehicle speed pulse for each constant traveling distance. The running distance is calculated by accumulating the number of vehicle speed pulses, and the running speed of the vehicle is calculated by counting the number of vehicle speed pulses per unit time. The display device 6 displays a map image around the own vehicle position together with a vehicle position mark based on a video signal output from the navigation controller 1, and displays a message image indicating a determination result of a driving state. The operation unit 8 is for performing various operation instructions, and includes various operation keys such as a cursor key and a numeric keypad. By operating the operation unit 8, a map display operation around the own vehicle position, a route search / guidance operation, and the like are instructed. In addition, by operating the operation unit 8, editing of a message image displayed on the display device 6 as a result of the determination of the driving state is performed.

(2) Detailed Configuration of Navigation Controller Next, a detailed configuration of the navigation controller 1 will be described. As shown in FIG. 1, the navigation controller 1 includes a CPU 12, a GPS receiver 14, a gyro sensor 16, a ROM 18, a RAM 20, a display controller 22, a VRAM 24, an audio processing unit 26, and a speaker 28.

The CPU 12 performs the calculation of the position of the vehicle, the route search / guidance processing, the driving state determination processing, and the like. GP
The S receiver 14 receives radio waves transmitted from a plurality of GPS satellites, performs three-dimensional positioning processing or two-dimensional positioning processing, calculates the absolute position and azimuth of the vehicle, and outputs these with the positioning time. . The gyro sensor 16 detects a vehicle rotation angle as a relative direction. ROM 18
Various operation programs of the CPU 12 are stored. RAM2
0 is used as a work area of the CPU 12, and C
The map data read from the D-ROM and the driving state determination table necessary for determining the driving state are stored.
The display controller 22 stores the image data output from the CPU 12 in the VRAM 24 for each display screen, and reads out the image data stored in the VRAM 24 for each scanning line necessary for display and converts it into a video signal. The voice processing unit 26 creates an intersection guidance voice in the route guidance processing and a message voice based on the determination result of the driving state. For example, the voice processing unit 26 converts text data input from the CPU 12 into a voice signal, or converts the text data input from the CPU 12 into a voice signal. Playback audio data. This audio signal is output from the speaker 28.

For example, when displaying a map image around the position of the host vehicle, the CPU 12 first reads a program for calculating the host vehicle position from the ROM 18,
The absolute position and azimuth of the vehicle are calculated based on the vehicle mileage calculated based on the vehicle speed pulse output at every constant mileage from the vehicle and the relative azimuth of the vehicle detected by the gyro sensor 16. Next, based on the vehicle position calculated in this way or the vehicle position calculated by the GPS receiver 14 and stored in the RAM 20, the CPU 12 maps map data around the vehicle position to a CD-ROM.
The map image data is read from the CD-ROM loaded in the ROM device 2 to create map data, and drawn on the VRAM 24. The display controller 22 reads map image data of a predetermined range centered on the own vehicle position from the map image data drawn in the VRAM 24 and displays the read map image data together with a mark image indicating the own vehicle position on the display device 6.

The above-described vehicle speed sensor 4 and CPU 12 serve as traveling speed detecting means, the gyro sensor 16 serves as vehicle angle detecting means, the CPU 12, ROM 18 and RAM 20 serve as driving state determining means, and the display 6, CPU 12, R
OM 18, RAM 20, display controller 22, VRA
The M24, the audio processing unit 26, and the speaker 28 correspond to the message output unit. Also, the RAM 20
The display device 6, the operation unit 8, the CPU 12, the ROM 18, the RAM 20, the display controller 22, and the VRAM 24 correspond to a message image editing unit and a message voice editing unit, respectively.

(3) Operation of Navigation Apparatus The navigation apparatus has the above-described configuration. Next, the navigation controller 1 determines the driving state of the vehicle and outputs the determination result on a screen or outputs sound. The detailed operation will be described. By the way, in order to safely turn right or left at an intersection or the like, it is necessary to sufficiently decelerate. Also, when stopping at a predetermined stop position, such as in front of an intersection or pedestrian crossing, if you stop suddenly, you may be hit by a following vehicle,
Since a sudden stop may occur before the stop line in time, it is necessary to sufficiently reduce the speed at a position a predetermined distance before the stop position. On the other hand, if the vehicle is decelerated too long before reaching an intersection or a stop line, traffic congestion may be caused, which is not a preferable operation. As described above, the traveling state at the time of turning right or left or stopping the vehicle is an important factor for accurately grasping the driving state. Therefore, in the present embodiment, the determination of the driving state is performed in consideration of the driving state when turning right and left and when stopping.

(3-1) Operation of Determining Driving State FIG. 2 is a flowchart showing the operation procedure of the navigation controller 1 when determining the driving state in consideration of the driving state when the vehicle turns right and left and when the vehicle stops. . In parallel with a normal navigation operation such as displaying a map image around the position of the own vehicle, searching for a route, or guiding a route, the CPU 12 calculates the traveling distance and the vehicle speed of the vehicle at regular intervals (step 10).
1, 102). As described above, the vehicle speed sensor 4 outputs a vehicle speed pulse for each constant traveling distance, so that the CPU
12 counts the number of vehicle speed pulses output within a predetermined time, calculates a running distance for each certain time by multiplying the counted value by a certain running distance which is an output interval of the vehicle speed pulse, and further calculates the running distance. By dividing the traveling distance by a certain time, a vehicle speed for each certain time is calculated. The mileage and the vehicle speed for each fixed time calculated in this way are
The data is sequentially stored in the RAM 20 (step 103).

The CPU 12 calculates the vehicle rotation angle at regular intervals (step 104). As described above, since the relative direction of the vehicle is detected by the gyro sensor 16, the CPU 12 integrates the relative direction detected by the gyro sensor 16 and calculates the rotation angle of the vehicle at regular intervals. The rotation angle of the vehicle for each predetermined time calculated in this way is sequentially stored in the RAM 20 (step 105). Note that step 10 described above is used.
A predetermined number of various data stored in the RAM 20 are stored in the RAMs 3 and 105. Every time the latest data is stored, the oldest data is deleted and the data is updated.

Next, the CPU 12 determines whether or not the currently running vehicle has turned right or left (step 106) or stopped (step 107). The determination as to whether or not the vehicle has made a right or left turn is made, for example, by examining whether or not a value obtained by accumulating a predetermined number of rotation angles of the vehicle calculated in step 104 from a recent value has exceeded a predetermined value (for example, 10 °). This is done by: The determination as to whether or not the vehicle has stopped is made by checking whether or not the vehicle speed calculated in step 102 has become 0 Km / h.

When the vehicle turns right or left, the CPU 12 calculates a right / left turn angle and a vehicle speed at the time of entering the right / left turn operation (step 108). The turning angle is
It is calculated by accumulating the rotation angles of the vehicle accumulated in the predetermined period in step 105. The vehicle speed at the time of entering the right / left turning operation is determined by the RAM 2 when the cumulative value of the rotation angle of the vehicle exceeds a predetermined value (for example, 5 °).
It is calculated (obtained) by reading from 0. In addition,
Since the right / left turn angle is not known until the right / left turn operation is completed, the determination in step 106 described above (particularly a positive determination)
Is preferably performed when the turning right / left operation ends and the rotation angle of the vehicle calculated in step 104 returns to substantially 0 °.

Next, the CPU 12 determines the RAM 2 based on the calculated right / left turn angle and the vehicle speed at the time of entering the right / left turn operation.
Referring to the driving state determination table corresponding to the right / left turning operation stored in 0, the driving state of the immediately preceding right / left turning operation is determined (step 109), and the result is stored in the RAM2.
0 is stored (step 110).

FIG. 3 is a diagram showing an example of a driving state determination table corresponding to the turning operation of the vehicle. In the operation state determination table shown in FIG. 3, the point “0” corresponds to the best operation state, and the points increase as the operation state worsens. Generally, when performing a right / left turn operation at a certain angle, it is necessary to decelerate to an appropriate speed, and even if it is slower or faster, it cannot be said that the vehicle is in an appropriate driving state. Also, the greater the angle at which the vehicle turns left or right, the greater the need to decelerate. Therefore, as shown in FIG. 3, a moderate speed (5 to 10 km / h or 10 to 20 km / h)
h), the best score is given when the vehicle shifts to a left / right turn operation after decelerating to h). Conversely, when the vehicle shifts to the right / left turn operation at a speed other than this speed, the right / left turn angle is particularly large and the vehicle does not decelerate sufficiently. If the vehicle shifts to the right or left turn operation, a bad score is given.

The contents of the operation state determination table
In other words, how the vehicle is determined to be in the best driving state when the vehicle runs is not uniquely determined, but the determination of the driving state performed in the present embodiment is based on the play with entertainment. In the case of performing it with a sense, it is not necessary to set it so strictly. Therefore, the driver or the like can enjoy the game like a game by watching the display of the determination result (described later) with a feeling of scoring the singing ability in karaoke, for example.

On the other hand, if the vehicle stops, then the CP
U12 calculates the degree of deceleration immediately before stopping (step 111). Since the traveling distance and the vehicle speed for each fixed time are calculated in step 102, the vehicle speed is set to 20K before the stop, for example, by calculating the distance back from the stop.
The position decelerated to m / h is calculated as the degree of deceleration immediately before stopping. Before stopping, a constant speed (in this case, 2
Instead of obtaining the distance decelerated to 0 km / h), the vehicle speed at a predetermined position immediately before the stop (for example, 10 m before the stop position) may be obtained, and the degree of the deceleration immediately before the stop may be obtained.

Next, the CPU 12 determines the RAM 2 based on the distance calculated before the stop and decelerated to a certain speed.
With reference to the driving state determination table corresponding to the stopping operation stored in 0, the driving state of the stopping operation is determined (step 112), and the result is stored in the RAM 20 (step 113).

FIG. 4 is a diagram showing an example of a driving state determination table corresponding to a stopping operation. Generally, when stopping just before an intersection or pedestrian crossing, it is necessary to decelerate to an appropriate speed, and if the degree of deceleration is not sufficient, a part of the vehicle may come out before the stop position. It cannot be said that it is operating. Further, even if the vehicle decelerates too far before the stop position, smooth traffic flow is disturbed, which is not preferable. Therefore, as shown in FIG. 4, an appropriate position (10-15
m), the best score is given when the vehicle decelerates sufficiently (in this case, 20 km / h). Conversely, when the position decelerated to 20 km / h is other than that, especially when the deceleration position approaches the stop position, Is given a bad score.

As in the operation state determination table shown in FIG. 3, the point "0" corresponds to the best operation state, and the point increases as the operation state becomes worse. The number of meters immediately before the stop position at which the vehicle is decelerated to 20 km / h is determined to be in the best driving state is not uniquely determined, but it is not necessary to set strictly, and it is not necessary to set it strictly. What is necessary is just to set appropriately according to the sense of play. In this manner, the driving state determination corresponding to the right / left turn operation or the driving state determination corresponding to the stop operation is performed, and the determination results are stored in the RAM 20. Then, the process returns to the above-described step 101 and the processing is repeated. .

(3-2) Output Operation of Judgment Result Next, the operation of outputting the judgment result of the driving state stored in the RAM 20 during normal driving and notifying the driver etc. will be described. FIG. 5 is a flowchart showing the operation procedure of the navigation controller 1 when displaying the determination result of the driving state on the screen or outputting the sound. First, the CPU 12 executes R
The driving state judgment result corresponding to the right / left turn operation and the driving state judgment result corresponding to the stop operation stored in the AM 20 are read, and the read operation state judgment results (judgment values) are totaled and averaged. Calculate the value (Step 20
1). Here, the total of these determination values is calculated every time the determination value of the driving state reaches a predetermined number, and the average value is obtained.

Next, the CPU 12 scores the operation level based on the calculated average value (step 202). For example, by subtracting the determination value (average value) of the driving state from 100, the driving level is scored out of 100 points. Next, the CPU 12 creates image data corresponding to the scoring result and sends the created image data to the display controller 22.
And a predetermined message image is displayed on the display device 6 (step 203). FIG. 6 is a diagram illustrating an example of a screen on which the scoring result of the driving state is displayed. As shown in the figure, for example, a message image such as “Your driving level / 70 points” is displayed in a part of the map image displayed at that time.

The CPU 12 sends text data for voice output “Your driving level is 70 points” to the voice processing unit 26 and outputs a message voice corresponding to the text data output from the voice processing unit 26. Is output from the speaker 28 (step 204).

As described above, the navigation device of the present embodiment determines the driving state each time the vehicle turns right or left at an intersection or the like, or every time the vehicle stops at a traffic light or a stop line in a normal driving state. At a predetermined timing (in the example described above, each time a predetermined number of driving state determination values are accumulated), the driver is notified of the driving level based on the determination result by screen display or voice output. Therefore, the driver can know his / her own driving state with a sense of play having game characteristics. Further, by providing such a function for determining the driving state, the navigation device can be used on a daily basis.

Next, modified examples of the scoring method, the display screen, and the output sound will be described. In the above-described embodiment, the driving level is graded by summing up a predetermined number of judgment values and calculating an average value, and the scoring result is notified to the driver by screen display or voice output. display·
Other methods of audio output are also conceivable.

For example, scoring may be performed by summing up judgment values within a certain period of time. FIG. 7 is a flowchart showing the operation procedure of the navigation controller 1 in this case. First,
The CPU 12 sums up the operating state determination values calculated during a certain period of time (for example, one hour) and stored in the RAM 20 to obtain an average value (step 301). Next, CPU1
2 grades the driving level based on the calculated average value (step 302), displays a graded image corresponding to the graded driving level (step 303), and outputs a voice (step 304). Step 302 described above
The operations of Steps 304 to 304 correspond to steps 202 to 204 shown in FIG.
Operation.

[0034] In addition, the determination period of the driving state may be designated according to the instruction of the driver or the like. FIG. 8 is a flowchart showing the operation procedure of the navigation controller 1 in this case. The CPU 12 determines whether or not the driver or the like has instructed the start of the operation for determining the driving state (step 401). When the driver or the like operates the operation unit 8 and is instructed to do so, the driving is performed. The state determination operation and accumulation of the determination value in the RAM 20 are started (step 40).
2). The accumulation of the driving state determination value is performed until the driver or the like gives an end instruction (step 404). Next, the CPU 12 reads the operation state determination values stored in the RAM 20 and calculates the average value (step 40).
4) After scoring the operation level (step 405),
The scoring image corresponding to the graded operation level is displayed (step 406) and sound output (step 4).
07).

In the above-described embodiment, the score itself according to the driving state determination result is notified to the driver or the like by screen display or voice output. However, a message image corresponding to the score (not the score itself) is displayed. The driver may be notified by outputting not only the message text but also a picture) or a message voice.

FIG. 9 is a diagram showing an example of a message table used when outputting a message. As shown in the figure, the message table stores text data, picture data, and message voice data corresponding to the driving level score (a value obtained by subtracting the driving state determination value from 100), which is scored out of 100. ing. The text data is text data of a character message displayed on the screen. The picture data is image data represented by a bitmap or the like displayed on a screen together with a text message. The message voice data is text data for voice output or a file name referring to the voice data. The voice processing unit 26 receives text data or voice data referred to by a file name or the like. Note that the message table described above is
It is stored in M20 and is read by the CPU 12 as needed.

FIGS. 10 and 11 show examples of screens displayed based on the message table. For example, if the score of the driving level is 90 points, the text data 5 in the message table shown in FIG.
And the data of picture 5 are read out, and the display as shown in FIG. 10 is performed. Further, the message voice 5 is read from the message table shown in FIG. 9, sent to the voice processing unit 26, and the corresponding message voice is output from the speaker 28.

When the score of the driving level is 10, each data of the text data 1 and the picture 1 is read out from the message table shown in FIG. 9, and the display as shown in FIG. Done. Further, the message voice 1 is read from the message table shown in FIG. 9 and sent to the voice processing unit 26, and the corresponding message voice is output from the speaker 28.

The above-mentioned message table can be configured to be editable by a driver or the like. For example, a plurality of selection candidate messages are prepared in advance corresponding to each point of the driving level, these candidates are displayed on the screen of the display device 6, and the driver or the like operates the operation unit 8 By doing so, any one of these selection candidates may be selected.

FIG. 12 is a diagram showing an example of the message list. For example, a message list table including such selection candidates for each operation level is stored in the RAM 20 in advance, and the CPU 12 reads this message list table and displays a message selection candidate for each operation level on the screen. The driver or the like can display a desired message on the screen or output a sound by selecting one of the messages while viewing the screen display.

The driver or the like can display a message edited by himself / herself on a screen. For example, CPU1
2 displays a list of Japanese syllabary characters as shown in FIG. can do. Alternatively, the input hiragana may be converted into kanji, and the message image displayed on the screen may be edited.

Also, as for the picture data, a plurality of candidate picture data are prepared in advance, and the driver or the like operates the operation unit 8 to select a desired one from among them. The image may be edited. FIG. 14 is a diagram illustrating a display example of a message list including picture data. The driver or the like can operate the cursor keys of the operation unit 8 to select any one of the images corresponding to a plurality of picture data as selection candidates.

Further, a PC card slot is connected to the navigation controller 1 to exchange data via the PC card, or to receive data by performing infrared communication (IrDA) with an infrared receiving section. The message image data and the message voice data created by the personal computer may be taken into the navigation controller 1 and used.

As described above, the navigation device of the present invention determines the driving state using the data of the vehicle speed and the rotation angle which can be easily obtained in the normal operation, and displays the message image and the message voice based on the determined driving condition. Since the output is performed at an appropriate timing, the navigation device can be used effectively on a daily basis. In addition, the display and the audio output can be enjoyed with a sense of play with game characteristics.

It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. In the above-described embodiment, the travel distance, the speed, and the rotation angle of the vehicle are calculated using the vehicle speed sensor 4 and the gyro sensor 16, but these values may be calculated based on the output of the GPS receiver 14. .

In the above-described embodiment, the driving state is determined in consideration of the deceleration state and the like in each of the right and left turn operations and the stop operation of the vehicle. It can be changed as appropriate. For example, the turning radius may be considered when turning right or left, or the degree of acceleration at the time of starting may be considered. Also, the case where the operating state determination table and the message table are stored in the RAM 20 in advance has been described. However, the operating state determination table and the message table may be stored in the ROM
You may make it read from OM.

[0047]

As described above, according to the present invention, the driving state is determined by detecting the speed and rotation angle of the vehicle during normal driving, and a predetermined message is output based on the determined driving state. Therefore, even when the map display function and the route guidance function are not used, the navigation device can be used on a daily basis. In addition, the relationship between the traveling speed or rotation angle of the vehicle and the result of the determination of the driving state is set in advance as a driving state determination table, and when the speed of the vehicle or the like is detected, the driving state determination table is referred to. Thus, the driving state can be easily determined based on the detected vehicle speed or the like.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an overall configuration of a vehicle-mounted navigation device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation procedure of a navigation controller when determining a driving state in consideration of a driving state when the vehicle turns right and left and when the vehicle stops.

FIG. 3 is a diagram illustrating an example of a driving state determination table corresponding to a turning operation of a vehicle.

FIG. 4 is a diagram illustrating an example of a driving state determination table corresponding to a stopping operation.

FIG. 5 is a flowchart showing an operation procedure of the navigation controller when displaying a driving state determination result on a screen or outputting sound.

FIG. 6 is a diagram illustrating an example of a screen displaying a scoring result of an operation state.

FIG. 7 is a flowchart showing an operation procedure of the navigation controller when totaling determination values within a predetermined time and displaying the screen or outputting sound.

FIG. 8 is a flowchart showing an operation procedure of a navigation controller when a determination value is accumulated according to an instruction of a driver or the like and a screen display or a voice output is performed.

FIG. 9 is a diagram illustrating an example of a message table.

FIG. 10 is a diagram showing an example of a screen displayed based on a message table.

FIG. 11 is a diagram showing another example of a screen displayed based on a message table.

FIG. 12 is a diagram illustrating an example of a message list.

FIG. 13 is a diagram showing an example of a screen displaying a Japanese syllabary list.

FIG. 14 is a diagram illustrating a display example of a message list including picture data.

[Explanation of symbols]

 Reference Signs List 1 navigation controller 4 vehicle speed sensor 6 display device 8 operation unit 12 CPU 16 gyro sensor 18 ROM 20 RAM 22 display controller 24 VRAM 26 audio processing unit 28 speaker

Claims (8)

[Claims] 1. A traveling speed detecting means for detecting a traveling speed of a vehicle; a vehicle angle detecting means for detecting a rotation angle of the vehicle; and a detection result of each of the traveling speed detecting means and the vehicle angle detecting means. A navigation device comprising: driving state determining means for determining a driving state; and message output means for outputting a predetermined message based on the driving state determined by the driving state determining means. 2. The navigation system according to claim 1, wherein the driving state determination unit determines the driving state based on a relative angle change of the vehicle when the vehicle turns an intersection and a vehicle speed at that time. apparatus. 3. The navigation device according to claim 1, wherein the driving state determination unit determines the driving state according to a degree of deceleration when the vehicle stops. 4. A table storage according to claim 1, wherein a driving state determination table indicating a relationship between each detection result of said traveling speed detection means and said vehicle angle detection means and a determination result of a driving state is stored. The driving state determination unit refers to the driving state determination table stored in the table storage unit based on each detection result of the traveling speed detection unit and the vehicle angle detection unit. A navigation device characterized in that the driving state is determined by the following. 5. The navigation device according to claim 1, wherein the message output unit displays a message image corresponding to the driving state determined by the driving state determination unit. 6. The message image editing device according to claim 5, further comprising a message image editing device for editing the message image displayed according to an operation state, wherein the message output device is edited by the message image editing device. A navigation device for displaying a message image. 7. The navigation device according to claim 1, wherein the message output unit outputs a message voice according to the driving state determined by the driving state determination unit. 8. The message voice editing device according to claim 7, further comprising a message voice editing unit that edits the message voice output according to an operation state, wherein the message output unit is edited by the message voice editing unit. A navigation device for outputting a message voice.