JP3301464B2 - Guide system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide system for tracking a current position and providing sightseeing guidance near a traveling road.

[0002]

2. Description of the Related Art Various navigation devices have been proposed which specify an origin (current location) and a destination to select an optimal route and provide course guidance to the destination. Conventionally, navigation devices that have been mainly proposed provide only course guidance by turning right or left or instructing a traveling direction with a goal of an intersection or a feature according to a route to a destination. Has proposed a system that also provides sightseeing guidance using this function.

[0003] For example, Japanese Patent Application Laid-Open No. 61-290473,
JP-B-63-19005, JP-A-4-1520, etc. provide storage means for storing sightseeing guide information.
There has been proposed a device which detects a current position, displays a map, a current position of a vehicle, and a traveling direction on a display, and outputs sound together with sightseeing guide information. It also shows that guidance is provided by image display instead of audio output.

[0004]

However, in the above-mentioned conventional guide device, a sightseeing guide is expressed when the guide start point of the guide object coincides with the current position. However, a guide corresponding to a certain guide object is provided. The sentence is uniform, and it has not been possible to output guidance in a guide sentence adapted to the situation of the surroundings of the vehicle, which is constantly changing. For this reason, the guidance message may not be suitable for the surrounding situation of the vehicle, and there is a problem that the guidance message is not so fresh when trying to adapt to any surrounding situation.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a guide system capable of guiding and outputting guide data suitable for a situation in which a vehicle is running. .

[0006]

According to a first aspect of the present invention, there is provided a guide system for storing guide data of a plurality of guide articles, and a current position detecting means for detecting and tracking a current position. And, a situation detecting means for detecting a situation around the vehicle, and an exploring means for exploring guide data of a guided property to be guided under predetermined conditions based on a current position obtained by the current position detecting means. Guide output means for selecting guide data in accordance with the surrounding situation detected by the situation detection means, generating output data, and outputting the output data to the guide output means; Guide output means for outputting guide data, wherein the condition detecting means includes a thermo-hygrometer for detecting temperature and humidity, a weather sensor for detecting weather, or a traffic congestion condition. It is characterized in that it comprises at least one of traffic information receiver for receiving. Further, according to the invention according to claim 2, the guide output means determines a specific situation based on detection signals of a plurality of sensors, and creates output data according to a result of the determination. Is what you do. Further, according to the invention according to claim 3, the guide data is composed of a plurality of phrases, and a plurality of guidance sentences adapted to each surrounding situation are prepared for one phrase. Output data is created by selecting and combining the guidance sentences suitable for the surrounding situation detected by the means.

[0007]

Since the guide system of the present invention has the above-described structure, according to the first aspect, it is possible to output the guidance according to the surroundings of the vehicle such as temperature and humidity, weather, or traffic congestion. it can. According to the third aspect of the present invention, the guide text of the guide data is divided into phrases and stored in the guide data storage means, and the guide text suitable for the situation around the vehicle can be selected and combined to provide guidance. The data volume of a sentence can be reduced.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing one embodiment of a guide system according to the present invention, FIG. 2 is a diagram for explaining a guide start condition, FIG. 3 is a diagram for explaining a guide point for one property,
FIG. 4 is a diagram for explaining the setting of a guided property, and FIG. 5 is a diagram for explaining an example of a guided property.

In FIG. 1, the operation means 1 enlarges the map image displayed on the display output means 8 to a detailed view, reduces it to a wide area map, or changes the display direction with north to up and south to up. It has a key for operating when switching the map image so as to change the orientation to the desired direction and switching from the guide image being displayed to the map image, for example, has a manual key as shown in FIG. A remote control is used. The display output means 8 is for outputting and outputting a guidance video or a map image of the property to be guided, and the audio output means 9 is for outputting guidance voice for the property to be guided. The map image data storage means 2 stores map image data of mesh-divided roads and guide properties. Guide data storage means 3
Is for storing video and audio guide data for guiding a property or street along a road or a property in a region. Each property has a type and is stored. For the type of property,
For example, point properties that exist at a certain coordinate or around several tens of meters around them, line properties with a length such as highways, and wide zone properties such as municipalities, plains, basins, regions, and national parks Can be divided into Situation detection means 11
-1, 11-2,... Detect the situation around the vehicle, such as a calendar for detecting the season, a clock for detecting the time zone, a thermo-hygrometer for detecting the temperature and humidity, rainfall, snowfall, and the like. It consists of a rainfall sensor that detects the weather, a traffic jam receiver that receives traffic jam information, and the like. The current position detecting means 5 detects the current position, approach azimuth, vehicle speed, etc. of the north latitude, east longitude, running road, etc., using a GPS (satellite navigation system) receiving device, a vehicle speed sensor, an angle sensor, a gyro sensor, a geomagnetic sensor, and the like. And perform further tracking. The map image output means 4 reads the map image data from the map image data storage means 2 with the current position as the center, and outputs a map image and a display signal of the approach direction. The guide output means 6 is based on information such as the current position, approach direction, vehicle speed, and road taken in from the current position detection means 5, and searches for guide objects stored in the guide data storage means by the guide output means. , And the situation detecting means 11-1, 11-2, ...
The guide text is edited in accordance with the situation detected by... To create output data, which is converted into a video signal and an audio signal for guidance and output. Further, the guide output means includes a first search means 6a, a second search means 6b, and a third search means 6c having different search ranges. For example, the first search means 6a searches for the above-mentioned point property, the second search means 6b searches for the above-mentioned line property, and the third search means 6c.
Explores the zone properties listed above,
The priority is determined and used, or these are switched and used according to the manual key operation of the operation means 1. The switching means 7 outputs the display output of the display output means 8 to the map image output means 4.
The current position and the approach direction are displayed on the map image, and the guide object is extracted during traveling, and guidance by video and audio is started. Then, the display signal of the map image is switched to the video signal of guidance by the guide output means 6, and in this state, when the map display key of the operation means 1 is operated, the switching from the guidance image to the map image is performed. Is what you do. The guidance output means 10 shown in the present invention comprises:
It comprises switching means 7, display output means 8, and audio output means 9.

In the guide system according to the present invention having the above configuration, the power is turned on by ACC-ON, a title image is displayed on the screen of the display output means, and the power is turned off by ACC-OFF. Then, when the power is turned on, the C storing the program
If the D-ROM is set, the program is started. If the CD-ROM is set after the power is turned on, the program is started by operating the operation unit 1.
When the guide program is started, the current position is sequentially detected and tracked as the vehicle travels, and a map image displaying an arrow in the approach direction with the north at the center of the current position is displayed on the display output means 8.
Will be displayed on the screen. Then, based on the current position, the traveling direction, and the vehicle speed, the guide property is searched for and the guide data storage means 3 is searched.
When the guide property is extracted from, guidance for the guide property is provided as appropriate.

As described above, guide properties include point properties such as facilities and buildings, monuments, line properties such as bridges and streets, lakes and other large-scale facilities, national parks and plains, It is divided into other regional zone properties. The point property is
Although the timing of the guidance start is restricted, line properties and zone properties can be selected within a certain range. Therefore, relatively, line properties and zone properties have priority over zone properties, and line properties and zone properties have sufficient room to output important point properties even after priority information is output. Can be made. Therefore, in the search for a guide property, first, a guide property is searched for from among point properties, and if there is no point property to guide, a line property is searched, and if there is no line property, a zone property is searched. In this case, it may be set that the line property and the zone property are searched when the state without the point property continues for a certain period of time. If there are no point properties, line properties,
Then, a zone property is searched and guided, and if a high-priority point property is searched during the guidance, setting is made so that line property and zone property guidance is interrupted and point property guidance is given priority. Alternatively, when an instruction of the manual guide is given by the operation means 1, a search for a line property or a zone property may be performed, and property guide may be selected.

For guidance, the first search means 6a in the guide output means 6 extracts information about the point property stored in the guide data storage means 3 from information such as the current position, approach direction, vehicle speed, etc. When the property approaches the guided property, the property must be an unguided property and no other property is being guided, and even if the property is being guided, there is a property with a higher priority than that and the guidance has been interrupted. Then, the guide output means 6 automatically outputs a guide video signal and an audio signal.
In this search range, as shown in FIG. 2A, the traveling direction of the vehicle is within the guidance start point approach direction ± A °.
As shown in (b), the vehicle position is within Bm in consideration of the vehicle speed from the guidance start point coordinates. When the guide property is not extracted by the first search means 6a, the line property and the zone property stored in the guide data storage means 3 from the current position by the second search means 6b and the third search means 6c. The guide output means 6 automatically outputs a guide video signal and an audio signal on the condition that the property is an unguided property and that no other property is being guided. The search range of the line property is, for example, recognizing the travel road from the current position, searching for the guide property from the travel road, and searching the zone property for the zone property including the coordinates of the current position. Therefore, the range of each zone property is set and registered with a plurality of coordinate values. In addition, the first search means 6a further searches for a guide property of a point property in a wider area, and as shown in FIG. 2C, the search range (the vehicle traveling direction is the guidance start point entry direction ±
A 'is within A' °, and the vehicle position is within B'm in consideration of the vehicle speed from the guidance start point coordinates: A '°> A °, B'
The property located in> B) may be extracted, and guidance may be provided from the extracted property, for example, from the property closest to the current position, or may be guided in order from the property closest to the guidance property. For this purpose, auxiliary search means 6a 'may be added. By setting a priority (priority) for each property, processing may be performed so as to guide the property with the highest priority.

The condition for ending the guidance is based on the fact that the guide data being output is output to the end. However, when the operation cancel switch is operated by the operating means 1 or when another property guidance point is reached. Then, the priority of the guide unit next to the currently guided property is compared with the priority of the first guide unit of the other property, and if the priority of the other property is higher, the operation is stopped up to the guided guide unit. In other words, the guide data is composed of a plurality of guide units including, for example, one image and a few seconds of sound, and execution / stop of the guidance is determined for each guide unit, and further, by setting priorities, When a plurality of guide properties satisfy the guide start condition, the selection of the execution of the guide, the adjustment of the length, and the stop of the guide may be determined based on the priority.

A plurality of guidance points for a point property are provided for one guidance property, for example, three guide points near a T-junction as shown in FIG. The approach direction of the vehicle is defined. Then, among the guided properties, the property that has been guided is stored as the already-guided property so that the same property is not repeatedly provided with guidance. In this case, as shown in FIG. 4, a property for which guidance has been completed by one or more guide units may be set as a guided property, or a condition that a predetermined guide unit with a higher priority has completed guidance, or a guide unit may be used. It may be an existing property every time.

The guide unit of each guide property is composed of a plurality of guidance texts, and a plurality of guidance texts are prepared for phrases related to the season, time zone, weather, and the like. Then, the guidance text of each phrase is selected according to the season, time zone, weather, and the like. For example, regarding the seasons, "This season is full of cherry blossoms ...", "Barbecue and camping around OO Park ..."
"There are 200,000 people every year at the XX festival during the four days of □ △ to XX ....", "The XX shrine that is full of hatsumode is now 5
When a guide message such as "... 60 years ago" is prepared, a guide message suitable for the season can be selected from the calendar. As for the time zone, "The streets are commuters in the business district and lively differently than at night.""The daytime is full of business, OL, and foreign tourists." It is known as a prime place to move around and lead the night in Tokyo "," This city where human power is fully opened until late at night is transformed into a trendy town and there is no interruption of traffic "... When the guide text is prepared, a guide text suitable for a commuting time zone, daytime, night, or midnight can be selected. Regarding the weather,
"Hummy", "Hotly burning", "Hot",
"Warm", "just right temperature", "chilly",
If guidance texts such as "cold", "cold", ... are prepared, the most suitable guidance text can be selected from these based on the detected temperature and humidity. Ha "," when peeping in the sunny days "," when it rains "," but it's raining "," in the strong rain ",
When a guidance sentence like "Rain is rising" ...
The weather can be determined and selected based on a detection signal from a weather sensor, an illuminometer, or the like that detects the most suitable guidance text from these.

Next, a specific example of the guidance will be briefly described. FIG. 5 shows a situation in which a vehicle passes near the Kaminarimon Gate in Asakusa. In the Kaminarimon of the guide property, for example, the guide data of the guide video and the guide voice of the Kaminarimon as shown in the guide data storage means 3. Is stored. Therefore, the guide output unit 6 is configured to output the guide data storage unit 3 based on the current position, approach direction, and vehicle speed of the vehicle obtained from the current position detection unit 5.
, A property that satisfies the guidance start condition described above is extracted. Then, when Kaminarimon is extracted as a guide property, the guide data of the Kaminarimon guide video and guide voice is read, converted into signals, and output. When the guide image signal is output, the switching means 7 outputs the guide image as shown in the figure from the display output means 8 by switching the map image display signal from the map image output means 4 to the guide image signal, and A guidance voice such as "Edo emotion ..." is output to the output means 9. When such guidance is completed, the guide output means 6
Then, the Kaminarimon is stored as the already-guided property, so that even if the person passes through the Kaminarimon again from a different direction, it is possible to prevent the guidance from being repeated.

However, in FIG. 5, if a vehicle is searched for a property based on the current position and provided with guidance, only the guidance video and guidance voice of Kaminarimon are output when the vehicle passes straight ahead from left to right in the figure. Not done. Even Senso-ji Temple main hall, five-storied pagoda, Denpo-in, Bentendo, Hanayashiki, and other properties that are not visible from the driving road are not widely included in Kaminarimon's guides. In order to provide guidance on important (high-priority) properties around the current position, the user operates the manual key of the operating means 1 and the guide data output means 6 extracts and guides properties near the current position. Output. As a process when there are a plurality of extracted properties, the extracted properties may be listed up and output by selecting a desired property from among the listed properties, or may be output in an order close to the current position, or The property near the current position may be guided, and then the property near the guided property may be guided. Alternatively, priorities may be added to the properties in advance, and the properties having the highest priority may be output in order. When automatically extracting a property facing the driving road from the current position and outputting the guidance, the guidance text such as "I see on the right hand is ..." When guiding a property that is not visible,
The guide sentence in the phrase obtained by dividing the guide unit into an indirect guide sentence such as "in the right hand direction in the back, ..., in the right hand direction in the vicinity ..." is changed to an appropriate expression.

Furthermore, when the property guidance is started, the current position of the vehicle, the position of the property, and the surroundings of the property may not be known. In such a case, in the present invention, the operating means 1
When the map key is operated, the switching means 7 converts the guide image signal from the guide output means 6 into the map image output means 4.
, And a map image as shown in FIG. 5 can be displayed. During this time, the guidance voice is output. By doing in this way, it is possible to obtain information such as the position of the property and the surroundings of the property by switching to the map image even after the property guidance is started.

Further, a specific configuration example of the guide output means will be described. FIG. 6 is a diagram showing an example of a system configuration showing the guide output means in detail, FIG. 7 is a diagram showing an example of keys constituting the operation means, FIG. 8 is a diagram for explaining the flow of the property search and guide processing, FIG. 9 is a diagram for explaining a process of searching for a guided property employing a manual guide, FIG. 10 is a diagram for explaining the flow of the property search process, FIG. 11 is a diagram for explaining a process of setting the current position, FIG. 12 is a diagram for explaining the operation of switching the scale of the map image, FIG. 13 is a diagram for explaining the north-south determination operation of the map image, and FIG. 14 is a diagram for explaining the correction process of the current position.

In FIG. 6, a remote control sensor 21 is
For example, it receives start / stop or various operation signals transmitted by a wireless remote controller using an optical signal and converts the signal into an electric signal. The remote controller operation signals include a guidance initialization instruction, a guidance stop instruction, There are a manual guide command, a current position map image control command, and the like. The remote control reception processing unit 24 decodes the operation signal received by the remote control sensor 21 and converts the operation signal into a key code. The guidance initialization instruction is sent to the guidance information processing unit 34, and the guidance stop instruction is sent to the guidance control processing unit 35. The manual guide command is sent to the property search processing unit 33, and the current position map image control command is sent to the map image control processing unit 25. The map image control processing unit 25 converts the map image control command received by the remote control sensor 21 and processed by the remote control reception processing unit 24 into a communication format and sends it to the current position tracking unit 22. The scale of the map image displayed on the TV monitor 38 is changed (reduced or enlarged) or the direction is changed (north-south) by the map image control command.

The current position tracking unit 22 detects and tracks the current position of the vehicle. The current position tracking unit 22 has, for example, a GPS, a vehicle speed sensor, map data, and the like. The traveling direction) and the vehicle speed are detected and tracked, and together with these data, map image data of a predetermined azimuth and a scale around the current position are provided. Therefore, the conventional navigation device may be applied as the current position tracking unit 22 as it is. The current position information reception processing unit 26 includes the current position tracking unit 2
2, the current position information received from the server 2 is extracted, and the current position and the traveling road are sent to the CD information storage unit 30, and the current position, the approach direction, and the traveling speed are retrieved.
To be sent.

The CD drive 23 reads a plurality of guide CDs storing guide information.
The CD drive control processing unit 27 processes control information for controlling the reading of the guide CD by the CD drive 23 based on the CD / read command from the CD information storage unit 30 or the guidance control processing unit 35, and To give instructions. The CD data reception processing unit 28
The CD data read according to the read control information is received, the CD information is transmitted to the CD information storage unit 30, the property data is transmitted to the property data storage unit 32, and the guide video and audio compressed data are transmitted. It performs processing for sending to the video / audio output processing unit.

The CD information storage unit 30 issues a read command of the CD information of each guide CD to store CD information including a disk label, a guide property file, a guide point file, and the like of each guide CD, and stores the CD information. A command for reading the property data near the current position is issued from the CD information and the current position, and a coordinate range for extracting the property point data is transmitted to the property point extraction processing unit 31.

The property data storage section 32 stores the property data of the CD data received and processed by the CD data reception processing section 28, of which the property point data is sent to the property point extraction processing section 31, and the property address is the guidance control. This is sent to the processing unit 35. The property point extraction processing unit 31 extracts the property point data around the current position by masking the already-guided information from the property point data stored in the property data storage unit 32. The property search processing unit 33 determines the property No. guided from the property point data by the current position, the approach direction, or the manual guide command. Is to explore.

The guidance control processing unit 35 receives a guidance stop command from the remote control reception processing unit 24 and the property N of the property search processing unit 33.
o. , The guidance control is performed in consideration of the information such as the time zone, the season, and the weather from the situation detecting unit 40. Is selected from the property addresses stored in the property data storage unit 32, and the CD read command is sent to the CD drive control processing unit 27.
And issues a guidance command (guidance start / stop) to the video / audio output processing unit 36,
And sends it to the output control processing unit 37. Further, the already-informed flag of the already-informed information processing unit 34 is set. The already-guided information processing unit 34 includes a guidance control processing unit 35
Is held until it is initialized by a guided initialization instruction of the remote control reception processing unit 24, and the guided information is sent to the property point extraction processing unit 31.

The video / audio output processing section 36 decodes the code data for guidance received through the CD data reception processing 28, and outputs the guidance video for output to the TV monitor 38 and the output to the speaker 39. Is decoded and output to the output control processing section 37 and the speaker 39, which output to the TV monitor 38, respectively. The output control processing unit 37 includes a TV monitor 38
On the other hand, the map image sent from the current position tracking unit 22 is switched to the guide image sent from the video / audio output processing unit 36 according to the guide status input from the guide control processing unit 35.

As described above, in FIG. 6, the remote control sensor 21, the remote control reception processing unit 24, and the map image control processing unit 25
Constitutes the operation means 1 of FIG.
2, the map image data storage means 2, the current position detection means 5, and the map image output means 4 of FIG. Then, the CD drive 23, the output control processing unit 37, the TV monitor 38, and the speaker 39 respectively correspond to the guide data storage unit 3 of FIG.
The switching means 7, the display output means 8, and the audio output means 9 are provided.
1, 11-2,..., And other processing units (26
To 36) constitute the guide output means 6.

Next, an overall operation outline will be described. First,
When the system is started, the CD information storage unit 30 issues a read command to read and store CD information from each guide CD. Then, prepare for the start of the guide. When the current position information is obtained from the current position tracking unit 22, the CD information storage unit 30 issues a read command of the property data included in a predetermined area including the current position by referring to the CD information, and It is stored in the storage unit 32. Then, the property point extraction processing unit 31 extracts property point data obtained by removing the already-informed information from the property point data stored in the property data storage unit 32. Property Exploration Processing Department 3
3 is a property No. 3 to be guided based on the current position and the approach direction from the property point data extracted by the property point extraction processing unit 31. To explore.

The guidance control processing unit 35 transmits the property No. Then, a read command is issued to the CD drive control processing unit 27 with reference to the address of the property data stored in the property data storage unit 32 based on the detection signal of the situation detection unit 40. The situation detection unit 40 includes a calendar, a clock, a temperature and humidity meter, a rainfall sensor, a traffic jam receiver, and the like. In this embodiment, the situation is determined by comprehensively determining these detection signals. Specifically, a matrix corresponding to ON / OFF of the detection signal is provided, and a situation is detected based on the matrix. Note that a signal corresponding to each output signal of an individual sensor may be issued without making such a comprehensive determination. Then, a read command for selecting a guide text according to the contents of these detection signals is also issued. According to this read command, guide video (compressed) and audio (compressed) data are input to the video / audio output processing unit 36 from the guide CD. The video / audio output processing unit 36 receives the guidance command from the guidance control processing unit 35 and decodes the guidance video (compression) and audio (compression) data into a guidance video signal of the TV monitor 38 and a guidance audio signal of the speaker 39. And send it out. At the same time, a guidance status is sent to the guidance control processing unit 35. This guidance status is sent to the output control processing unit 37 through the guidance control processing unit 35, and the output control processing unit 37 outputs the video signal to the TV monitor 38 and the map image from the current position tracking unit 22 to the video / audio output. The display is switched to the guide video from the processing unit 36. Then, when each guide unit is completed, the video / audio output processing unit 36 notifies the guidance control processing unit 35 of the completion.
The guidance flag of the information which has already been provided is the guidance control processing unit 35
Is set in the already-guided information processing unit 34.

The wireless remote controller is composed of, for example, keys as shown in FIG. In FIG. 7, the start / stop key is operated from the state where the title image is displayed on the CD-ROM.
Is a key to start the program stored in, or to stop the program when the map image is displayed,
The north-south key is a key for reversing the north-south direction of the map when the map image is displayed. This means that if the direction toward the north with respect to the east-west direction is the approach direction, a map image with the north facing up is displayed, but if the direction toward the south with respect to the east-west direction is the approach direction, Since the direction below the screen is the approach direction, the operation is performed when switching to a map image with south facing up, or vice versa. The manual key is used to start manual guidance if there is a manual guidance property while displaying a map image or guidance video, or to start guidance for the next candidate guidance property during manual guidance. is there. The detail key and the wide area key are operated to switch the scale of the map image or to display the scale. The set key is operated when performing initialization or when correcting the current position in a map image. The stop key is a key operated in the case where the guidance is canceled on the automatic guidance screen or the manual guidance screen and the display is returned to the map image, the initialization is stopped, the correction of the current position is stopped, or the like, and the operation is stopped halfway. . Arrow keys
This key is operated to move the current position cursor when correcting the current position of the map image. The map key is a key operated when the map image is switched and displayed during the display of the guide video.

The operation of the manual key is constantly monitored as shown in FIG. 8 (step S1), and when the operation is performed, the manual mode flag MF is set to "1" (step S2). In the property exploration / guide processing, first, the guidance flag F which is set to “1” during guidance is set.
G is checked (step S11). This guidance flag FG
If is not "1", search for a guide property (step S1).
2) If there is a guide property, the guide data of the property is read from the CD, the reproduction of video and audio is started, and the guidance flag FG is set to "1" (steps S13 to S1).
5). Thereafter, it is determined whether or not the guidance stop key has been operated, and if not, it is determined whether or not the guidance has ended (steps S16 to S17).

If the guiding flag FG is "1", it is checked whether or not the manual mode flag MF is "1" (step S21). If the manual mode flag MF is set to "1", the image is displayed. Stop the voice reproduction and reset the guidance flag FG to “0” (step S1)
8). However, when the manual mode flag MF is “0”, the property other than the guidance is searched (step S2).
2) If present, it is further checked whether or not the property has a higher priority than the property being guided (steps S23 to S2).
4) If the cost is high, when the guidance is completed up to the break of the guide unit of the property being guided (step S25), the next step S18 and subsequent steps are executed.

When it is determined in step S16 that the guidance stop key has been operated, when the guidance has been terminated in step S17, when the manual mode flag MF is set to "1" in step S21, or in step S25. If it is determined that the guidance has been completed up to the break of the guide unit of the property being guided, the reproduction of the video and audio is immediately terminated, and the guidance flag FG is reset to "0" (step S18). At this time, if one or more guide units have been guided, the already-guided flag of the property is set (steps S19 to S20).

In the search processing in step S12, FIG.
As shown in (1), a point property is searched (step S31). If there is no point property (step S32), furthermore, the current position P is within a wide-area approach direction C °, and the distance to the property is within Dm C.
Search for point properties satisfying the conditions of °> A ° and D> B (step S33), and check whether there is a point property in a wide area (step S34). If there is a point property in a wide area, return. I do. This is because point objects are soon searched for while driving. However, if there is no point property in the wide area, there will be no guidance output of the point property for a while. Therefore, for example, a line property is searched from the road number information specified from the current position P (step S35), and the line property is also searched. If not (step S36), a zone property is searched from the current position information (step S37). As a result, if there are extracted properties, they are arranged in descending order of priority (step S39). And
The process from step S13 in FIG. 8 is performed.

In the point object search process in step S31, first, as shown in FIG. 10, it is checked whether or not the manual mode flag MF is "1" (step S41).
If the manual mode flag MF is "0", properties satisfying the conditions are extracted from the current position (step S4).
3) In the case of "1", a property that satisfies the condition within a wide range of approach direction A '° and within a distance B'm to the property is extracted (step S42), and the condition is satisfied and the priority is determined. The objects are arranged in descending order (step S44). If the manual mode flag MF is "1", the property with the next highest priority after the previous guidance is set as the guide property, and then reset to "0". If "0", the property with the highest priority is set. Is the guide property. Then, the processing from step S32 in FIG. 9 is performed.

Extraction of guided properties based on priority order,
In the above processing of the guidance output, a priority is assigned to each property data stored in advance in the guide CD, and the property No. is determined based on the priority based on the point data searched by the property search processing unit 33. May be extracted and guidance output may be performed. Alternatively, the property searched and the distance from the current position may be obtained based on the current position, and the guidance output may be performed with priority given to the shortest obtained distance. In this case, for example, if a plurality of guidance properties 1, 2, 3, and 4 are searched and extracted with respect to the current position of the vehicle, first,
The distance to the respective guide properties _{d 1, d 2, d 3} , d 4
Ask for. The result of comparing the distances is d ₄
If <d ₁ <d ₃ <d ₂ , first, guide property 4
Is output as guidance, and then guidance information 1, guidance object 3, and guidance object 2 are output in this order. In addition, the distance from the current position to the property is the current position and the position coordinates of the guide property, for example, east longitude,
It can be calculated by coordinates such as north latitude. Furthermore, among the properties searched based on the current position, first, select the guide property whose distance from the current position is the shortest, and then calculate the distance from this guide property to each property to find the property with the shortest distance between each property. The guidance output may be repeatedly performed in order. In this case, the guiding property 1,2,3,4 for the present position of the vehicle as above is extracted probed, firstly, the distance to the respective guide properties d _1, d _2, d ₃ ,
seek d _4. Then, if the result of comparing the distances is d ₄ <d ₁ <d ₃ <d ₂ , guidance information 4 is output first, and then guidance information 1, 2, 3 The distances d ₄₁ , d ₄₂ , and d ₄₃ are obtained, and as a result, if d ₄₁ <d ₄₃ <d ₄₂ , the guidance article 1 is guided and output. Similarly, the distances d ₁₂ and d ₁₃ from the guided property 1 to the guided properties 2 and 3 are obtained. If the result is d ₁₂ <d ₁₃ , the guidance output of the guided property 2 is performed.
Is output.

If the memory is erased due to the initial state, the removal of the battery, or other reasons, and the current position is not stored, it is necessary to set the current position. In this case, the current position is set by using the arrow keys, the detail key, and the wide area key to move the current position on the map image and use the set key as shown in FIG.

In the automatic guidance mode, as described above, a map image is displayed when there is no guidance object nearby and no guidance is being provided. In this case, the property is still being searched,
By operating the detail key and the wide area key, the scale of the map image can be changed as shown in FIG. 12, and by operating the north-south key, the north-south direction of the map image can be reversed as shown in FIG. The current position of the vehicle can be corrected as shown in FIG. 14 by operating the set key, the correction key, and the arrow keys.

FIG. 15 is a diagram showing an example of the file structure of the guide CD. The file structure of the guide CD is, for example, as shown in FIG.
L, guide property file GLIST, guide point file PLIST, guide data DATA, direction data HOK
O and composed of a plurality of CDs. The disc label header DLABEL is made up of disc label attribute data and an applicable area table (East, North latitude) stored on the disc, whereby it can be determined whether the current position is within the applicable area of the disc. . The guide property file GLIST includes a guide property number, property attributes (point properties, line properties, zone properties, and width properties in the case of point properties, width information is also included), the number of guidance start points, and guide unit attributes (audio / video, audio). Only the unit length information), a property name, a property position secondary mesh number, and a property property data table including property positions (East longitude, north latitude). The guide point file PLIST has a table of guide point data including a point attribute, a point position (East longitude, north latitude), an approach direction, and a direction voice number.

FIG. 16 is an external view of a vehicle equipped with the guide system according to the present invention.
2 is a vehicle speed sensor, 43 is a remote control sensor, 44 is a monitor TV, 45 is a current position tracking device, 46 is a remote control,
47 indicates a GPS antenna. This example is applied to a sightseeing bus, a remote controller 46 is installed, and a guide output device 41, a monitor TV 44, and a remote controller sensor 43 are provided behind the driver's seat.
Is installed so that the passenger can operate the remote controller 46 to instruct switching between the tourist guide screen and the map image.

As described above, according to the present invention, the situation around the vehicle is detected by the situation detection means, and the guide data is extracted from the guide data storage means by searching for the property by the search means of the guide output means. Since the guidance is selected and output according to the surrounding situation detected by the detecting means, a guidance sentence suitable for the surrounding situation at the time of the guidance output can be selected and edited, and various surrounding situations at the current position can be selected. In accordance with the change in the information, it is possible to provide guidance suitable for the atmosphere and without unnaturalness. By dividing the guidance text of the guided property for each phrase and storing it in the guide data storage means, it is possible to select the guidance text for each phrase according to the surrounding situation, and freely combine the phrases. Can be changed.

It should be noted that the present invention is not limited to the above-described embodiment, and various changes can be made. For example, in the above embodiment, the guide text of the phrase is selected according to the season, time zone, weather, and the like. However, in the traffic jam information, a guide unit to be output may be added according to the degree of traffic jam. Also,
In the above-described embodiment, the guide text is divided into a plurality of guide units, each of which has a guide text, and the entire guide text is created by combining them according to the situation. The information may be stored, and the guidance message may be selected according to the detected situation. However, the method of the above embodiment requires a smaller amount of data.
Further, a fixed sentence adapted to all situations may be fixed, and a sentence of a phrase may be partially changed according to a change in the situation.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of a guide system according to the present invention.

FIG. 2 is a diagram for explaining a guidance start condition.

FIG. 3 is a diagram for explaining guidance points for one property.

FIG. 4 is a diagram for explaining the setting of a previously announced property.

FIG. 5 is a diagram for explaining an example of a guide property.

FIG. 6 is a diagram showing an example of a system configuration showing a guide output unit in detail.

FIG. 7 is a diagram showing an example of keys constituting the operation means.

FIG. 8 is a diagram illustrating a flow of a property search / guide process.

FIG. 9 is a diagram illustrating a search process for a guided property employing a manual guide.

FIG. 10 is a diagram illustrating a flow of a property search process.

FIG. 11 is a diagram for explaining a current position setting process.

FIG. 12 is a diagram illustrating an operation for switching the scale of a map image.

FIG. 13 is a diagram illustrating a north-south determination operation of a map image.

FIG. 14 is a diagram for explaining a current position correction process.

FIG. 15 is a diagram showing an example of a file structure of a guide CD.

FIG. 16 is an external view of a vehicle equipped with the guide system according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Operation means, 2 ... Map image data storage means, 3 ... Guide data storage means, 4 ... Map image output means, 5 ... Current position detection means, 6 ... Guide output means, 6a ... First search means,
6b: second search means, 6c: third search means, 7: switching means, 8: display output means, 9: audio output means, 1
0 ... Guidance output means

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-19887 (JP, A) JP-A-4-219782 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01C 21/00 G08G 1/0969 G09B 29/00

Claims (3)

(57) [Claims] 1. A guide data storage means for holding guide data of a plurality of guided articles; a current position detection means for detecting and tracking a current position; a situation detection means for detecting a situation around a vehicle; An exploring means for exploring guide data of a guide object to be guided under predetermined conditions based on the current position obtained by the detecting means, and selecting guide data according to a surrounding situation detected by the situation detecting means Guide output means for generating output data to output to the guide output means, and guide output means for outputting guide data of the property based on the output data output from the guide output means,
The guide system, wherein the status detecting means includes at least one of a thermo-hygrometer for detecting temperature and humidity, a weather sensor for detecting weather, and a traffic information receiver for receiving traffic information. 2. The guide system according to claim 1, wherein the guide output means determines a specific situation based on detection signals of a plurality of sensors, and creates output data according to a result of the determination. Guide system characterized by. 3. The guide system according to claim 1, wherein the guide data includes a plurality of phrases.
A plurality of guidance sentences that match each surrounding situation are prepared for one phrase, and the guide output unit creates output data by selecting and combining the guidance sentences that match the surrounding situation detected by the situation detecting unit. Guide system characterized by that.