JPH07301538A - Guide system - Google Patents

Abstract

PURPOSE:To appropriately control the guidance starting timing of a guide system in accordance with objects to be guided and the running speed of a vehicle. CONSTITUTION:The guide system is provided with a guiding data storing means 3 which stores guiding data for guiding objects existing along the road, roads and areas, guide outputting means 7-9 which outputs guides on objects to be guided, present location detecting means 5 which detects or traces the present location of its own vehicle, car speed detecting means 5 which detects the running speed of the vehicle, and guiding data outputting means 6 which reads out guiding data from the storing means 3 based on the present location and outputs the guiding data to the outputting means 7-9. The storing means 3 stores guiding data together with the information about the objects to be guided. The guide data outputting means 6 sets a guide starting point based at least on the speed of its own vehicle detected by the detecting means 5 and the information about the objects to be guided.

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 tourist information 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 optimum route and guide a course to the destination. Conventionally, navigation devices that have been mainly proposed have been exclusively for guiding the course by instructing the right and left turns and the direction of travel by targeting intersections and features according to the route to the destination. Has also proposed a system that uses this function to provide tourist information.

For example, JP-A-61-290473,
Japanese Patent Publication No. 63-19005, Japanese Patent Laid-Open No. 4-1520, etc., is provided with a storage unit for tourist guide information, detects the current position, and displays a map, the current position of the vehicle, and the traveling direction on the display. At the same time, there has been proposed a device that outputs tourist guide information and the like by voice. Also, it is shown that guidance is provided by image display instead of voice output.
Further, Japanese Examined Patent Publication No. 4-14400 proposes a vehicle route guidance device capable of controlling a point at which guidance is started to be notified according to a vehicle speed.

[0004]

However, in the vehicle route guiding apparatus disclosed in the above Japanese Patent Publication No. 4-14400, the guidance start point is controlled according to the vehicle speed, and the guidance target is an intersection or a branch point. Although the guide start point is set based on the guide target as a point, when applied to a tourist guide, the guide property has various conditions such as its location condition and size, and the start point of the guide property is uniform. It is difficult to set the target. In addition, when setting the guidance start point only for the vehicle speed, such as the degree of traffic congestion on the road you are running, construction work, etc.
The guidance cannot be changed depending on the surrounding situation at that time, which may cause a problem that the user cannot receive the guidance of the property at an appropriate place.

An object of the present invention is to solve the above problems and an object thereof is to provide a guide system capable of appropriately controlling the timing of starting guidance in accordance with the property to be guided and the vehicle speed. .

[0006]

[Means for Solving the Problems] Therefore, the guide system of the present invention outputs a guide data storage means for storing guide data for guiding articles along the road, streets, and areas, and guidance for the article to be guided. Guide output means, current position detection means for detecting and tracking the current position, vehicle speed detection means for detecting the vehicle speed, and guide output means for outputting guide data from the guide data storage means to the guide output means. At the same time, the guide data storage means
Store the guide data with the property information of the guide property,
The guide output means sets a point to start guidance based on at least the vehicle speed detected by the vehicle speed detection means and the property information of the guide property, and outputs guide data based on the set guide start point and the current position. The information is output to the guidance output means.

[0007]

In the guide system of the present invention, the guide data storage means for storing the guide data for guiding the article along the road, the street, and the area, the guide output means for outputting the guide for the article to be guided, and the current position Current position detection means for detecting and tracking, vehicle speed detection means for detecting vehicle speed, and guide output means for outputting guide data from the guide data storage means to the guide output means, and the guide data storage means, The guide data is stored with the property information of the guided property stored therein, and the guide output means sets a point to start the guidance based on at least the vehicle speed detected by the vehicle speed detection means and the property information of the guided property, The guide data is output to the guide output means based on the set guide start point and the current position. It is possible to set the timing, it is possible to perform the appropriate property guide with no discomfort to the user. In addition, since the information about the width of the guided property, the information about the visible range, and the information about the type of the guided property are stored as the property information of the guided property, the length of the part of the guided property facing the traveling road, Data from which position the guide property can be checked while the vehicle is running, whether the guide property is a building or a natural landscape, etc. is stored as data, and depending on various situations and the speed of the vehicle currently running. The start timing of guidance can be set, and the user can be provided with guidance that matches the characteristics of each guided property.

Information on the length of the narration of the guided property is stored in the guide data storage means, and the starting point of the guidance is set so that the center of the narration of the guided property matches the center of the property. The end position of can be set, and the guide does not end too early while the vehicle is passing by the property, and the guide can be output at an appropriate timing. Furthermore, since the guide data for the next property to be read is calculated based on the time until the guide data is read and the detected vehicle speed, the guide data is read for each guide property. By storing the time and the distance is calculated from the time and the current speed of the vehicle, it is possible to issue a guide sentence read command at a position before the distance calculated from the guidance start point. Therefore, it is possible to surely start the guidance at an appropriate timing to start the guidance corresponding to the vehicle speed. In addition, by controlling the guidance start timing according to the road conditions, for example, even when there is a traffic jam in front of the guidance start property, guidance can be provided at an appropriate timing.

[0009]

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

In FIG. 1, the operating means 1 switches the map image displayed on the display output means 8 to an enlarged detailed view or a wide area view, and changes the display orientation with north to the opposite south to up. It has keys to be operated when switching or switching to a map image while the guidance image is being displayed. For example, a remote controller having various operation keys as shown in FIG. 7 is used. The display output means 8 displays and outputs the guide video and map image of the property to be guided, and the voice output means 9 outputs the guide voice of the property to be guided. The map image data storage means 2 stores map image data of roads and guide properties which are mesh-divided,
The guide data storage means 3 stores video and audio guide data for guiding properties along the road, streets, and regions, and also divides the guide data for each property into a plurality of short guide units (phrases). The priority is set and stored in each guide unit.
The current position detecting means 5 detects the current position of north latitude, east longitude, running road, etc., approach direction, vehicle speed, etc. using a GPS (satellite navigation system) receiving device, vehicle speed sensor, snake angle sensor, gyro sensor, geomagnetic sensor, etc. However, it will be tracked further. The map image output means 4 reads the map image data from the map image data storage means centering on the current position and outputs the map image and the display signal of the approach direction.
The guide output unit 6 extracts the guide data of the guide property from the guide data storage unit 3 based on the information such as the current position, approach direction, vehicle speed, and road, converts the guide data into a guide video signal and audio signal, and outputs the signal. When the next guided property is extracted during the property guidance, the guidance of the property being guided is canceled in units of guide units and the guidance of the next property is started. At this time, when the next guided property is extracted, the priorities are compared and the guidance of the next guided property is started on condition that the priority of the next guided property is high, and duplicate guidance is given to the already guided property. Register existing guidebooks to prevent. The switching unit 7 outputs the display output of the display output unit 8 to the map image output unit 4
The map image or the guide image by the guide output means 6 is switched. The current position and the approach direction are displayed on the map image and the guide property is extracted and the guide by the image and the voice is started. Then, the display signal of the map image is switched to the image signal of the guide by the guide output means 6, and when the map display key of the operation means 1 is operated in this state, the guide image is switched to the map image. It gives instructions. In the present invention, the guidance output means comprises a switching means 7, a display output means 8 and a voice output means 9.

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

[0012] The guide properties include facilities, buildings, point properties such as monuments, line properties such as bridges, lakes and lakes and other large-scale facilities with width, national parks and plains, rural areas and other regional zones. It can be divided into properties. For point properties, the timing of starting guidance is limited, but line properties and zone properties can be selected within a certain range. Therefore, relatively, line properties are given priority over zone properties, and point properties are given priority over line properties, and line properties and zone properties have a margin to output even after priority information of important point properties is output. Can be made. For example, the priority may be set so that line properties and zone properties are extracted when there is no point property to guide.First, if the point property is not searched, the line property is searched, and if there is no line property, the zone property is searched. You may make it explore the property.

For guidance, the guide property stored in the guide data storage means 3 is extracted from the information such as the current position, approach direction and vehicle speed, and when the vehicle approaches the guide property, the guide output means 6 automatically guides the guide property. The guide is started by extracting the data and converting the guide video and guide voice. When the guide output means 6 determines that the guide start point set for each guide property satisfies all of the following conditions: Is. The guide start condition is that the vehicle traveling direction is within ± A ° of the guide start point approaching direction as shown in FIG. 2A and the vehicle position is the vehicle speed from the guide point coordinates as shown in FIG. 2B. In addition, when the property is within Bm, the property is an unvisited property, and no other property is being guided. Further, by instructing the manual guide by the operating means 1, the vicinity of the current position (vehicle) (guide start point approach direction ± A ′ °, distance B′m between the guide point and the current position: A ′ ° ≧ A ° , B ′ ≧ B) can be guided.

In order to always be able to start guidance at the same guidance start point on the map, the faster the vehicle speed, the more CD-ROM is activated to read the guide data at a position on the map before the guidance start point. Have to start. Further, the faster the vehicle speed is for the same guidance output time, the longer the guidance output distance. Therefore, if the center of the guidance output is matched with the center of the guided property, the higher the vehicle speed, the more the guidance start point moves to the position on the map. In order to read the guide data so that the guidance can be surely started at the desired guidance start point even if the vehicle speed becomes fast, the time from the start of CD-ROM activation for each guide property until the guide data is read If t (calculate t from the current pickup position and the position on the CD of the property data you want to output) is known, the distance s = K · v corresponding to the vehicle speed v
-Since it can be converted to t (K is a constant), the CD lead start position can be reliably read out by the guide start point by obtaining the position on the map from this distance and the guide start point. .

The guide termination condition is basically that the guide data being output is output to the end. However, when the guide stop switch is operated by the operation means 1 or when another property guide point is reached. , The priority of the guide unit of the property currently being guided is compared with that of the first guide unit of the other property, and if the priority of the other property is high, the guide unit being guided is stopped. In other words, the guide data is composed of a plurality of guide units each consisting of, for example, one image and a few seconds of voice, determines whether to execute or cancel the guide in units of guide units, and further sets the priority (priority).
When a plurality of guide properties satisfy the guide start condition by setting, the selection of execution of guide, adjustment of the length or shortness, and cancellation are determined based on this priority.

There are a plurality of guide points for one guide article, for example, 3 as shown in FIG. 3 if they are near a T-junction.
It will have two guide points, and the position according to east longitude and north latitude and the approach direction of the vehicle will be specified. Then, among such guided properties, the properties that have been guided are stored as already-guided properties so that the same property will not be duplicated. In this case, as shown in FIG. 4, the property for which one or more guide units have finished guiding may be an already-guided property, or on condition that a predetermined guide unit has finished guiding, or for each guide unit. It may be used as a guide property.

Next, a specific example of guidance will be briefly described. FIG. 5 shows a situation in which a vehicle passes near the Kaminarimon gate in Asakusa. For the Kaminarimon of the guide property, for example, the guide image as shown and the guide voice of the Kaminarimon are the guide data storage means 3
It is stored in. Therefore, the guide output unit 6 extracts, from the guide data storage unit 3 based on the current position of the vehicle, the approach direction, and the vehicle speed obtained from the current position detection unit 5, a property satisfying the guidance start condition described above. And
When Kaminarimon is selected as a guide property, guide data of Kaminarimon's guide video and guide voice is read out, converted into each signal, and output. Switching means 7 by outputting the guide video signal
Switches the map image display signal from the map image output means 4 to the guide image signal, thereby outputting the guide image as shown in the figure from the display output means 8, and the audio output means 9 indicating "Edo atmosphere". The following guidance voice is output. When such guidance is completed, the guide output means 6 stores the Kaminarimon as an already-introduced property, so that even if the Kaminarimon passes through the Kaminarimon again from a different direction, it is possible to prevent redundant guidance.

However, in FIG. 5, only by searching for a property based on the current position and providing guidance, when the vehicle goes straight from the left to the right in the figure, the guidance video and guidance voice of Kaminarimon are output. Not done. Sensoji main hall, five-storied pagoda, houden, Bentendo, Hanayashiki, and other properties that are invisible to the road are not included in the Kaminarimon guidance. Therefore, if you want to guide important (high-priority) properties around the current position, you can operate the manual key of the operation unit 1 and the guide data output unit 6 will extract properties near the current position and guide you. Output. As processing when there are multiple extracted properties, you may output by listing the extracted properties and selecting the desired property from them, or outputting them in the order closer to the current position. It is also possible to guide the property close to the current position and then guide the property close to the guided property, or to add a priority to each property in advance and output the property in order from the highest priority. In addition, when the property facing the road is automatically extracted from the current position and the guidance is output, the guidance text such as “What you see on the right hand is…” is displayed from the road with the manual key. If you want to show the invisible property,
Divide the guide text into guide units so that it becomes a guide text such as "in the right-hand direction, ..." and "in the right-hand direction in the vicinity ...", and change it into an appropriate expression.

Furthermore, when the property information is started, the current position of the vehicle, the position of the property, and the surrounding conditions 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 changes the guide image signal from the guide output means 6 to the map image output means 4
It is possible to display the map image as shown in FIG. 5 by switching to the display signal of the map image by. During this time, the guidance voice is also output. By doing so, it is possible to switch to the map image and obtain information such as the position of the property and the surrounding condition of the property even after the property guidance is started.

Further, a concrete configuration example of the guide output means will be described. 6 is a diagram showing a system configuration example showing the guide output means in detail, FIG. 7 is a diagram showing an example of keys constituting the operation means, and FIG. 8 is a diagram for explaining the flow of the guide flag setting process. 9 is a diagram for explaining the exploration process of the guided property, FIG. 10 is a diagram for explaining the calculation process of the property guidance start timing, and FIG. 11 is a diagram for explaining the relationship between the property and the property guidance start position. , FIG. 12 is a diagram for explaining the current position setting process, FIG. 13 is a diagram for explaining a map image scale switching operation, and FIG. 14 is a diagram for explaining a north-south determination operation of the map image. FIG. 15 is a diagram for explaining the correction processing of the current position.

In FIG. 6, the 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 it into an electric signal. The operation signals of the remote controller include a guide initialization command and a guide stop command. There are manual guide commands, current position map drawing control commands, etc. The remote control reception processing unit 24 decodes the operation signal received by the remote control sensor 21 and converts it into a key code, and sends an already-instructed initialization command to the already-informed information processing unit 34, and an uninstructed instruction to the guidance control processing unit 35. The manual guide command is sent to the property exploration 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 to convert the current position tracking unit 2 into a current position tracking unit 2.
The process for sending the image to the second screen is performed, and the scale of the map image displayed on the TV monitor 38 is changed (reduced or enlarged) or the direction is changed (south or north) by a map image control command.

The current position tracking unit 22 detects and tracks the current position of the vehicle, and has, for example, a GPS, a vehicle speed sensor, map data, etc., and has a current position according to east longitude, north latitude, a current traveling road, a traveling direction ( 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 reduced scale centered on the current position are provided. Therefore, the conventional navigation device can be directly applied as the current position tracking unit 22. The current position information reception processing unit 26 extracts the current position information received from the current position tracking unit 22, sends the current position, and further the traveling road to the CD information storage unit 30,
The current position, approach direction, and traveling speed are sent to the property exploration processing unit 33.

The CD drive 23 reads a plurality of guide CDs storing guide information.
To read data from a CD, the CD is rotated at a constant speed, the pickup is moved to the address for reading data, and the data read operation is performed. However, the operation commands of are independent, and the CD drive 2 is used as necessary.
Issue a command to 3. In order to reduce the durability and power consumption of the CD drive, the operations 1 to 3 are performed as necessary. The CD drive control processing unit 27 processes the control information for controlling the reading of the guide CD by the CD drive 23 based on the CD / read command by the CD information storage unit or the guide control processing unit 35, and sends it to the CD drive 23. It gives an instruction, and the CD data reception processing unit 28
Receives the CD data read according to the read control information, and stores the CD information among them in the CD information storage unit 30.
To transmit the property data to the property data storage unit 32, and to transmit the compressed data of the guide video and audio to the video / audio output processing unit.

The CD information storage unit 30 issues a read command for the CD information of each guide CD to store the CD information including the disc label of each guide CD, the guide property file, the guide point file, and the like. The CD information and the read command of the property data in the vicinity of the current position from the current position are issued, and the coordinate range for extracting the property point data is sent to the property point extraction processing unit 31.

The property data storage unit 32 stores property data of the CD data received by the CD data reception processing unit 28, sends property point data to the property point extraction processing unit 31, and guides the property address. It is sent to the processing unit 35. The property point extraction processing unit 31 masks the existing guidance information from the property point data stored in the property data storage unit 32 and extracts property point data around the current position. The property exploration processing unit 33 is a property number that guides from the property point data according to the current position, approach direction, or manual guide command. To explore.

The guidance control processing unit 35 instructs the remote control reception processing unit 24 to cancel the guidance and the property search processing unit 33 to search for the property N.
o. Guide control is performed based on the property number, which is searched by the property search processing unit 33. The property address of the property is selected from the property addresses stored in the property data storage unit 32, and the CD read command is selected, and the CD drive control processing unit 27
To the video / audio output processing unit 36 and a guidance command (guidance start / stop) to the video / audio output processing unit 36.
And outputs it to the output control processing unit 37. Furthermore, the previous guidance flag of the previous guidance information processing unit 34 is set. The existing guidance information processing unit 34 includes a guidance control processing unit 35.
The existing guidance flag set by is held until it is initialized by the existing guidance initialization command of the remote control reception processing unit 24, and the existing guidance information is sent to the property point extraction processing unit 31.

The video / audio output processing unit 36 decodes the guide code data received through the CD data receiving process 28, and outputs the guide video for output to the TV monitor 38 and the speaker 39. Of the guide voice, and outputs it to the output control processing unit 37 and the speaker 39, which are respectively output to the TV monitor 38. 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 controller sensor 21, the remote controller reception processing section 24, and the map image control processing section 25.
Comprises the operation means 1 of FIG. 1, and the present position tracking unit 2
The map image data storage means 2, the current position detection means 5 and the map image output means 4 shown in FIG. Then, the CD drive 23, the output control processing unit 37, the TV monitor 38, and the speaker 39 are respectively the guide data storage unit 3 and the guide data storage unit 3 of FIG.
The switching means 7, the display output means 8, and the voice output means 9 and the other processing units (26 to 36) constitute the guide output means 6.

Next, an outline of the whole operation will be described. First,
When the system is activated, the CD information storage unit 30 issues a read command to read and store the 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 the property data is read. It is stored in the storage unit 32. Then, the property point extraction processing unit 31 extracts the property point data from the property point data stored in the property data storage unit 32 excluding the existing guidance information. Property exploration processor 3
3 is the property number to be guided based on the current position and approach direction from the property point data extracted by the property point extraction processing unit 31. To explore.

The guidance control processing section 35 displays the property number. Based on this, a read command is issued to the CD drive control processing unit 27 by referring to the property address stored in the property data storage unit 32. By this read command, the guide video (compressed) and audio (compressed) data is 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 outputs the guidance video (compressed) and audio (compressed) data to the TV.
The guide video signal of the monitor 38 and the guide audio signal of the speaker 39 are decoded and transmitted. At the same time, the guidance control processing unit 3
The guidance status is sent to 5. By sending this guidance status to the output control processing section 37 through the guidance control processing section 35, in the output control processing section 37, the video signal to the TV monitor 38 outputs the map image from the current position tracking unit 22 as the video / audio. The guide image from the processing unit 36 is switched to. Then, the video / audio output processing unit 36 notifies the guidance control processing unit 35 of the completion of each guide unit. The guidance flag of the information that has already been guided is set in the already-guided information processing section 34 by the guidance control processing section 35.

The wireless remote controller is composed of keys as shown in FIG. 7, for example. In FIG. 7, the start / stop key is changed from the state where the title image is displayed to the CD-ROM.
It 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 of the map when the map image is displayed. If the northward direction is the approach direction with respect to the east-west direction, a map image with north as the top is displayed, but if the southward direction is the approach direction with respect to the east-west direction, Since the direction at the bottom of the screen is the approach direction, it is operated when switching to the map image with the south facing up, or vice versa. The manual key is used to start the guidance of a manual guidance property if there is a map guidance or guide image, or to start the guidance of the next candidate guidance property during the manual guidance. is there. The detail key and the wide area key are operated when switching the scale of the map image or displaying the scale. The set key is operated when performing initialization or when correcting the current position on the map image. The cancel key is a key operated when canceling the guide on the automatic guidance screen or the manual guidance screen and returning to the map image, canceling initialization, canceling correction of the current position, etc. . Arrow keys
This key is operated when the current position cursor is moved to correct the current position of the map image. The map key is a key operated when switching and displaying the guide video map image.

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

When 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 guiding flag FG to "0" (step S1)
8). However, when the manual mode flag MF is "0", the property other than the one being guided is searched (step S2).
2) If so, 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 guide is completed up to the division of the guide unit of the property being guided (step S25) when the cost is high, the subsequent step S18 and subsequent steps are executed.

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

In the exploration processing of the guide property, as shown in FIG. 9, first, it is checked whether or not the manual mode flag MF is "1" (step S31). Manual mode flag M
When F is "0", the property that satisfies the conditions such as the approach angle described in Fig. 2 within A ° and the distance within Bm described in Fig. 2 is extracted from the current position and direction (step S33), and "1" is selected. In the case of, the properties satisfying the conditions within a wider range than A '° and B'm are extracted (step S32), and the properties satisfying the conditions and having a higher priority are arranged (step S32).
34). If the manual mode flag MF is "1", the next property that was previously guided is treated as the property to be guided and then reset to "0". If "0", the property with the highest priority is guided to the property. And

In the process of calculating the property guidance start timing, as shown in FIG. 10, it is checked whether the property is a point property or a wide (point) property (steps S41 to S42). Here, for example, if the width of a property is a certain length or more, it is treated as a wide (point) property, and if it is less than a certain length, a point is determined. Property (Property with a small width)
To judge. Figure 11
As shown in (a), since the guidance start position is changed so as to match the center of the narration of the guidance output with the center of the article (for example, the midpoint of the portion where the guidance article faces the road),
First, based on the vehicle speed (v) and the length of narration (t), the distance s traveled from the start to the end of narration is calculated from s = v · t, and guidance starts s / 2 before the center of the property. The position is set (step S43).

Further, since it takes time to start up the CD-ROM and read it out, especially when the vehicle speed is high,
The guidance start point may be misaligned. Therefore, after setting the guidance start point as described above, the position on the map where the CD-ROM is started is calculated from the property data position on the CD-ROM and the vehicle speed as shown in FIG. 11 (b). (Step S44).

FIG. 11 shows a point property whose width is less than a predetermined value.
As shown in (c), the guide start position is fixed and CD-
The position on the map where the CD-ROM is started is calculated from the property data position on the ROM and the vehicle speed (step S44).

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

In the automatic guidance mode, as described above, the map image is displayed when the guidance property does not exist nearby and guidance is not being provided. Even in this case, the property is being searched,
By operating the detail key and wide area key, the scale of the map image can be changed as shown in FIG. 13, and by operating the north-south key, the north-south direction of the map image can be reversed as shown in FIG. By operating the set key, the correction key, and the arrow keys, the current position of the vehicle can be corrected as shown in FIG.

FIG. 16 is a diagram showing an example of the file structure of the guide CD, and the file structure of the guide CD is, for example, as shown in FIG. 16, a disc label header DLABE.
L, guidance property file GLIST, guidance point file PLIST, guidance data DATA, direction data HOK
It consists of O and consists of multiple CDs. The disc label header DLABEL is composed of disc label attribute data and an applicable area table (east longitude, north latitude) stored in the disk, and by this, it is possible to determine whether or not the current position is within the applicable area of the disk. . The guided property file GLIST includes a guided property number, property attributes (in the case of point property, line property, zone property, and point property, width information is also included), guidance start point number, guide unit attribute (audio / video, audio). Only, information on the length of the unit), property name, property position secondary mesh number, property position (east longitude, north latitude). The guide point file PLIST has a table of guide point data including point attributes, point positions (east longitude, north latitude), approach direction, and direction voice number.

FIG. 17 is an external view of a vehicle equipped with the guide system according to the present invention, in which 41 is a guide output device and 4 is a guide output device.
2 is a vehicle speed sensor, 43 is a remote controller sensor, 44 is a monitor TV, 45 is a current position tracking device, 46 is a remote controller,
Reference numeral 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 passengers can operate the remote controller 46 to instruct switching between the tourist information screen and the map image.

The present invention is not limited to the above embodiment, but various modifications can be made. For example, in the above embodiment, as the property information of the guided property, the property is given width information, and the position to start the property guidance is changed depending on the vehicle speed.
The height of the property and the density of surrounding buildings affect the visibility of the guided property from the road on which it is running. Therefore, as the property information of the guided property, the visible range of the guided property may be included as information, and the condition of the guidance start point may be set. Further, the type of property may be stored as the property information of the guided property, and for example, the condition may be set such that the building and the natural landscape such as mountains, rivers, and lakes are categorized to set the guidance start point. . Furthermore, the guidance start point may be changed according to road information such as traffic jam information.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a guide system according to the present invention.

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

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

FIG. 4 is a diagram for explaining setting of already-guided properties.

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

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

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

FIG. 8 is a diagram for explaining a flow of a guide flag setting process.

FIG. 9 is a diagram for explaining a search process for a stable property.

FIG. 10 is a diagram for explaining a calculation process of a property guidance start timing.

FIG. 11 is a diagram for explaining a relationship between a property and a property guidance start position.

FIG. 12 is a diagram for explaining current position setting processing.

FIG. 13 is a diagram for explaining an operation for changing the scale of a map image.

FIG. 14 is a diagram illustrating a north-south determination operation of a map image.

FIG. 15 is a diagram for explaining a current position correction process.

FIG. 16 is a diagram showing an example of a file structure of a guide CD.

FIG. 17 is an external view of a vehicle equipped with the guide system according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Operating 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, 7 ... Switching means, 8 ...
Display output means, 9 ... Voice output means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoji Yokoyama 2-19-12 Sotokanda, Chiyoda-ku, Tokyo Equus Research Co., Ltd.

Claims (8)

[Claims] [Claim 1] Guide data storage means for storing guide data for guiding properties along the road, streets, and regions, guidance output means for outputting guidance for properties to be guided, and detection and tracking of the current position The current position detection means, the vehicle speed detection means for detecting the vehicle speed, and the guide output means for reading out the guide data from the guide data storage means to the guide output means are provided, and the guide data storage means is the property information of the guide property. The guide output means sets a guide start point based on at least the vehicle speed detected by the vehicle speed detection means and the property information of the guide property, and sets the guide start point and the current position. A guide system which outputs guide data to a guide output means based on a position. 2. The guide system according to claim 1, wherein the guide data storage means stores information on the width of the guide property as property information of the guide property. 3. The guide system according to claim 2, wherein the guidance output means outputs guidance by voice. 4. The guide system according to claim 3, wherein the guide data storage means stores information on the length of the narration of the guide property, and the guide output means matches the center of the narration of the property guide with the center of the property. A guide system characterized by setting a point to start guidance so as to perform. 5. The guide system according to claim 1, wherein the guide data storage means stores information of a visible range of the guided property as property information of the guided property. 6. The guide system according to claim 1, wherein the guide data storage means stores the type of guided property as property information of the guided property. 7. The guide system according to claim 1, wherein the guide output storage means reads the guide data of the article to be guided next from the guide data storage means, and the vehicle speed detected by the vehicle speed detection means. A guide system for calculating a start point of reading guide data from the guide data storage means based on the above. 8. A guide data storage unit that stores guide data for guiding properties along a road or a local property, a guide output unit that outputs a guide for a property to be guided, and a current position is detected and tracked. The current position detection means and the guide output means for reading out the guide data from the guide data storage means to the guide output means based on the current position are provided, and the guide output means determines the point to start the guidance based on the road information. Guide system characterized by setting.