CN1107297C

CN1107297C - Navigation apparatus

Info

Publication number: CN1107297C
Application number: CN96101909A
Authority: CN
Inventors: 井手野宏昭; 则本政嗣; 太田正子; 伊藤久嗣
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1995-01-20
Filing date: 1996-01-19
Publication date: 2003-04-30
Anticipated expiration: 2016-01-19
Also published as: CN1135064A; DE19600700A1; JPH08254436A; KR0175135B1; DE19600700B4; KR960030057A

Abstract

A navigation apparatus capable of outputting the guide information concerning a necessary point input by a driver in response to a request of the driver previously stores map information, specifies an automobile position on the map information by detecting signals such as GPS signals, gyroscopic signals and speed pulse signals, etc., retrieves a point to be guided from the map information on the basis of the present position of the automobile, produces the guide information concerning the point to be guided by processing the map information, and displays the guide information concerning the point to be guided. Further, a guide switch (a touch panel key) as a display mark, a distance to a target destination point and an azimuth toward the target destination point, and a running direction to go at or near the target destination point are also displayed.

Description

Guide device

The present invention relates to when the vehicle that guide device is housed is just moving by the arbitrary of loudspeaker voice and screen display or both, produce and provide guide device, and relate more specifically to can be according to driver's request by showing the guide device that produces and navigation information is provided to the driver about the navigation information of destination to automobile or truck driver.

The traditional direction Equipment Inspection is equipped with in the automobile of this guide device or the particular range that truck enters the intersection, pass through voice then, or voice and visual display inform in the intersection or the working direction of this vehicle in similar place to vehicle drivers, as described in Japanese unexamined publication application (or Japanese pending application not examination of appeal) NO.202307/85 (Tokkai-ShO 60-202307).

Because traditional direction equipment is ignored driver's request or driver's wish when vehicle just moves, system provides navigation information to the driver by traditional direction, when the driver will obtain navigation information, always can not obtain navigation information.For example, owing to when the vehicle that this guide device is housed does not shift near the intersection, just do not provide the navigation information of relevant intersection, so the driver is difficult to have the sufficient time that this car is sailed to the scene by timely reception one destination information to the driver.For addressing the above problem under the situation that navigation information is provided at a certain distance or at regular intervals, the driver feels that sometimes this information is ear-piercing, because even but hear this navigation information when he does not need it.That is to say, provide navigation information to him, so the problem of this equipment is: can only wait until that also the interior traditional direction equipment of vehicle just can obtain it when it is provided even the driver wants to hear this navigation information because traditional direction equipment is ignored driver's wish.

For solving the another kind of traditional direction equipment that above-mentioned traditional problem provides, for example be shown in Japanese unexamined patent and disclose equipment among 99678/93 (the Tokkai-Hei 5-99678), the manipulation that this equipment is configured to respond the driver when asking and along projected route by the verbal announcement navigation information.But can be quite few by the quantity of information of phonetic representation, so the defective of this kind traditional direction equipment be that it can not always provide navigation information to the driver when the driver needs accurate and detailed navigation information.For example, traditional direction equipment has following shortcoming:

Although traditional direction equipment can provide the navigation information of relevant intersection to the driver, but can only for example comprise the simple sensing of " turning right " or " turning left " by the navigation information that traditional guide device provides by voice, the intersection of compiling on several the roads that oblique angle is arranged or having on the same orientation under the situation that several crossings can enter for the vehicle that guide device is housed, the driver is difficult to selected road and driver and does not know how to determine vehicle which bar road this enters.

In addition, the navigation information that the driver needs is not only the direction of turning right or turning left, and will comprise such as place name, and the driver that helps in roadside determines the facility etc. in place and road name that will enter and road wire size.Therefore, also have such problem, it is not enough only providing navigation information by voice to the driver according to driver's request.

In view of in above-mentioned traditional direction equipment, comprising above-mentioned shortcoming, an object of the present invention is to provide that can respond the driver asks to produce guide device with the navigation information of exporting relevant place.

Another object of the present invention provides the navigation information that can produce and be provided as driver's easy to understand and identification and can reduce the guide device that the driver misreads the navigation information that produces.

Can provide the navigation information project of many types although another purpose of the present invention is a guide device, the guide device that is provided can reduce in guide device the store memory storage as the shared storage area of the navigation information of cartographic information.

According to first aspect present invention, for a kind of guide device that reaches above-mentioned all purposes and provide comprises a cartographic information memory storage, in order to store cartographic information, a current position detecting device, be used for by detecting such as gps signal, gyro signal and determine the current position (be automobile position or truck position) of vehicle on cartographic information from the speed pulse signal that vehicle provides, a map information retrieving device, be used for current position according to vehicle, cartographic information retrieval place to be led from be stored in the cartographic information memory storage, a navigation information treating apparatus, be used for by the cartographic information that is stored in the cartographic information memory storage being handled the navigation information of generation about place to be led, a display device, be used to show the navigation information in the relevant place that will lead, and an input media, be used to respond the driver and ask to import the various inputs that comprise the navigation information input.

As mentioned above, guide device according to first aspect present invention is retrieved place to be led based on the cartographic information of the current position of the vehicle that this equipment is housed from be stored in the cartographic information storing apparatus, and the cartographic information that deposits in the cartographic information storing apparatus by processing produces the relevant navigation information for the treatment of guiding point, so that response shows this navigation information by driver's request of input media input.Therefore, guide device can also show the relevant navigation information that is requested a little in advance except that showing the navigation information that closes the current position of vehicle.

Comprise a route setting device according to the guide device that second aspect present invention provided, in order to determine to arrive course by the destination of input media input, and a map information retrieving device, in order to the navigation information of the cartographic information from be stored in the cartographic information storing apparatus along the relevant place of waiting to lead of the route retrieval of determining by the route setting device.

As mentioned above, in pressing the guide device of second aspect present invention, the navigation information in map information retrieving device relevant place of waiting to lead from the cartographic information that deposits the cartographic information storing apparatus in along the route retrieval of determining by the route setting device, to produce the navigation information in the relevant place of waiting to lead, so that response, shows the navigation information in the relevant place of waiting to lead by driver's request of input media input on a display device.Therefore, this guide device decapacitation shows outer can also the demonstration in advance along the navigation information that is requested on this route a little of navigation information of the current position of relevant this vehicle.

Provide a guide device that is used to show relevant navigation information when the intersection that the vehicle that this guide device is housed will run into when its current route is advanced according to third aspect present invention.

As mentioned above, guide device by third aspect present invention, current position according to vehicle, from the relevant information for the treatment of guiding point that the intersection that this vehicle of this equipment will run into when its current route is advanced is housed of the cartographic information retrieval that deposits the cartographic information storing apparatus in, and deposit the navigation information that cartographic information in the cartographic information memory storage produces point to be led in by processing, so that the request of response driver by the input media input shows this navigation information on a display device.Therefore, this guide device can also show the navigation information of the intersection a little of asking in advance except showing the navigation information that closes the current position of vehicle.

Comprise an instantaneous speech power by the guide device that fourth aspect present invention provided, in order to pass through the voice output navigation information, as the voice navigation information, and a navigation information treating apparatus, in order to carry out one handle cause that instantaneous speech power exports simultaneously with its demonstration navigation information be presented at the voice navigation information that navigation information is relevant on the display device.

As mentioned above, in pressing the guide device of fourth aspect present invention, because the voice navigation information relevant with showing navigation information exported with showing navigation information simultaneously by instantaneous speech power, so this navigation information can represent in two ways that promptly a kind of according to the content of this navigation information is that visual display and another kind are represented for sound.The driver can easily be provided by the navigation information that provides from guide device thus.

According to a fifth aspect of the invention, the cartographic information that the network information that provides a kind of guide device to produce and provide utilization to represent the road relation by link and node interconnection is at least described, and the picture information of utilizing the navigation information treating apparatus to produce according to this network information, as the navigation information on a display device to be shown.

As mentioned above, produce and describe cartographic information by the guide device of fifth aspect present invention as the network information of representing the road relation by link and node interconnection at least.Therefore, compressed the quantity of information that will be stored in the cartographic information memory storage, and on a display device, shown the picture information that information Network Based produces as navigation information.Thereby the driver can easily discern immediately between complicated navigation information and they and concerns that the generation driver who causes in the time of can reducing the navigation information that is produced when driver's identification misreads situation.

According to a sixth aspect of the invention, a kind of guide device that is provided also comprises destination navigation information display device, be used to produce from the current position of vehicle to or towards the destination with drive towards or each navigation information project of approaching destination, and be used for showing the navigation information project that is produced by display device.

As mentioned above, because the guide device of the 6th direction of the present invention also comprises destination navigation information display device.Be used to produce from the current position of vehicle to or towards the destination with drive towards or each navigation information project of approaching destination, and be used for they are offered display device 6, its effect can be discerned rough and effective navigation information project for vehicle drivers when the driver need not detailed navigation information, for example to the destination distance, to the orientation of destination with drive towards or the direction of traffic of approaching destination.

Can more fully understand other purposes of the present invention and advantage from the detailed description of doing below in conjunction with accompanying drawing, in the accompanying drawing:

Fig. 1 is the system architecture calcspar of expression by the guide device of first embodiment of the invention (embodiment 1);

Fig. 2 is the calcspar of the principle part in the cartographic information total in the guide device of expression embodiment 1;

Fig. 3 is the network chart of a road net network in the guide device of expression embodiment 1;

Fig. 4 A and Fig. 4 B are the explanation sketches of each details of cartographic information in the guide device of expression embodiment 1;

Fig. 5 is the operational flowchart of the guide device of expression embodiment 1;

Fig. 6 A and Fig. 6 B are that expression is by the intersection map by the shown intersection of guide device of second embodiment of the invention (embodiment 2) and the 3rd embodiment (embodiment 3);

Fig. 7 is the explanation sketch that expression is used to draw the crossing intersection data of intersection map shown in Fig. 6 A and the 6B;

Fig. 8 is common explanation sketch by a shown map of the guide device of embodiment 1;

Fig. 9 is the process flow diagram of a part of the guide device operation of expression embodiment 1;

Figure 10 is the system architecture calcspar of expression by the guide device of embodiment 2;

Figure 11 is the calcspar of expression by the system architecture of the guide device of embodiment 3;

Figure 12 is illustrated in the explanation sketch that concerns between the input code and output voice in the instantaneous speech power of guide device of embodiment 3;

Figure 13 is illustrated under the guide device output voice guiding situation of embodiment 3 process flow diagram of this process;

Figure 14 is a part of operational flowchart of expression by fourth embodiment of the invention (embodiment 4) guide device;

Figure 15 is illustrated in the explanation synoptic diagram for the treatment of the crossing intersection data preserved in the centre in the guide device of embodiment 4;

Figure 16 is a part of operational flowchart of the guide device of expression embodiment 4; And

Figure 17 is an explanatory view for the treatment of an intersection map being shown by the guide device of embodiment 4.

Figure 18 represents the system architecture calcspar by the guide device of the fifth embodiment of the present invention (embodiment 5);

Figure 19 is the process flow diagram of expression by the part operation of the guide device of the embodiment of the invention shown in Figure 180 5;

Figure 20 is a screen display example in by the guide device of the embodiment of the invention shown in Figure 180 5;

Figure 21 is the process flow diagram of expression by the part operation of the guide device of the sixth embodiment of the present invention (embodiment 6);

Figure 22 is a screen display example in by the guide device of the embodiment of the invention shown in Figure 21 6;

Figure 23 is the system architecture calcspar of expression by the guide device of the seventh embodiment of the present invention (embodiment 7);

Figure 24 is expression another system architecture calcspar by the guide device of embodiments of the invention 7;

Figure 25 is the process flow diagram of expression by the part operation of the guide device of the embodiment of the invention 7 shown in Figure 23 and 24;

Figure 26 is a screen display example in by the guide device of the embodiment of the invention 7 shown in Figure 23 and 24;

Figure 27 is a screen display example in by the guide device of the eighth embodiment of the present invention (embodiment 8);

Figure 28 is another example of screen display in by the guide device of the embodiment of the invention 8.

Describe all most preferred embodiments of the present invention in detail referring now to all accompanying drawings.Embodiment 1

Fig. 1 is the calcspar of expression by the system architecture example of guide device of the present invention.In the figure, label 1 expression cartographic information storing apparatus, this device can be specially the various recording mediums that can write down many data, such as having the CD-ROM that records cartographic information and being used for from the CD-ROM drive of CD-ROM sense data, hard disk unit, light-disk set uses the IC-card of semiconductor memory etc.Current position detecting device of label 2 expressions, this device has the function that obtains vehicle position coordinate, it is by operating based on resulting travel track of vehicle displacement and orientation etc., this displacement be according to by at least from the radio wave signal of gps satellite calculate this vehicle longitude and latitude, the speed of a motor vehicle, the number of tire revolutions of vehicle etc. is calculated, and the orientation is according to from such as gyrotron, and the calculated signals of fibre optic gyroscope constant angular velocity sensor or magnetic sensor is come out.In addition, current location pick-up unit 2 is applicable to and comprises that a map comparison means is used for map datum by will being stored in cartographic information memory storage 1 with the position coordinates of the vehicle the most reliable point of diagram data relatively and definitely, to improve reliability.All these technology are under the guide device that the technician knows in the field, and therefore theme of the present invention and position detecting device 2 are what has nothing to do.Label 3 expression map information retrieving devices are used for finding out the point that will lead from cartographic information; Label 4 expression navigation information treating apparatus, be used for producing navigation information and depositing this information in cartographic information memory storage 1 from the output of map information retrieving device 3, with the request of response driver, on display device 6, show this navigation information from input media 5 inputs.

Hardkey switch in the display device of packing into 6 or touch-screen switch can be used as this input media 5.In addition, the speech recognition equipment that becomes the electric signal that is equivalent to a hardkey switch motion on the function to carry out the input operation of input driver request by the sensing phonetic modification with the driver can obtain to be equivalent to resulting same effect under the hardkey switch situation.For example CRT (cathode-ray tube (CRT)) installs, and LCD (LCD) etc. are like that, and the display plotter that is used as the display terminal of guide device usually satisfies the condition of display device 6 of the present invention.

For describing the operation of map information retrieving device 3 and navigation information treating apparatus 4 in detail, the existing details that description is stored in the cartographic information in the cartographic information memory storage 1.

Fig. 2 is the calcspar of expression cartographic information major part.In the figure, label 11 expression indication constitutes the management information of existence of each information of cartographic informations, management information 11 information that is absolutely necessary concerning map information retrieving device 3 and navigation information treating apparatus 4 remove to visit each cartographic information.But, because management information 11 does not directly influence effect of the present invention, and be present in usually in this database structure, so the details of this management information 11 is not described at this, and will be omitted in the process that visit certain operation utilizes this management information 11 during each information from this instructions from now on.Label 12 is expressed as the link data group of the crossroad information of the relevant road network of explanation.Label 13 is expressed as the node data group of the information of the relevant road network node of explanation.The intersection set of map data that label 14 expression back will be described.

Fig. 3 is expressed as the road network example of explanation the present invention operation.Indicate such as N1, N2, or the like the circle of reference character represent the intersection, and be expressed as node in the cartographic information of mentioning in front.Indicate reference character L1, L2, the line of L3 etc. represent the connection road between the intersection, and are expressed as link in aforementioned map information.The present position that the vehicle of this guide device is equipped with in label 20 expressions.

Fig. 4 A and Fig. 4 B are the illustrative sketches of representing the details of link data and node data respectively.As shown in Fig. 4 A, a link data comprises the node number 15a that constitutes this both link ends, be used to express the insertion point co-ordinate 156 that has that road shape of polygon line, linkage length 15c, the classification of indication road management, such as national highway, the classification of road 15d of county road etc., road management number and corresponding road name 15e indicate this vehicle with destination place name 15f of arriving or the like if vehicle travels along this road.Other data are the backbone or the link categorical data of side main line such as this road of indication, the width data of the runway number that indication road width or vehicle can pass through, and traffic rules data such as one-way traffic or the like all can be stored on demand.Shown in Fig. 4 B, a node data comprises node location coordinate 15g, be connected to the number of links 15h of this node, each link No. 15i, by the link joint angle 15j that all links of linking this node form, instructs node is that the intersection still is the node classification 15k of take-off point etc., the intersection name 15m that is represented by this node, and also have present embodiment is fit to, to the pointer 15n of intersection map datum.The data of intersection set of map data 14 are to represent corresponding to the detailed shape of the crossing of a node or around the pictorial data of the facility of crossing with the picture information form, and map datum pointer 15n indication in intersection is corresponding to the position of an intersection map datum of a node in intersection set of map data 14.

Now will how to select to treat guiding point with regard to Fig. 5 flow chart description map information retrieving device 3 from this cartographic information.After this will be described as realizing selecting to be equipped with main stem of vehicle front (being national highway in this example) crosscut place of this guide device or the function course that vehicle is provided with the intersection at the road place that can keep straight on.

At first, map information retrieving device 3 obtains to be equipped with the link No. of the location of this guide device vehicle from current position detecting device 2, compares to check whether be updated (step ST100) resulting number with the last link No. of this vehicle location.If this number also upgraded, then map information retrieving device 3 is waited for to this number change, and if this number upgraded, map information retrieving device 3 obtains the link No. and the working direction (step ST101) of this vehicle position from current position detecting device 2.

Then, map information retrieving device 3 for entering link, and obtains the node data that enters the link end (step ST102) on the vehicle forward direction side with the link setting that obtains.Then, map information retrieving device 3 is from connecting the connection chain circuit-switched data of link No. acquisition except that entering link described in the node data, obtaining the category of roads of each link, and check with enter link and intersect on the direction whether have national highway link (step ST103).If exist national highway link, map information retrieving device 3 just this node to be exported to navigation information treating apparatus 4 as treating guiding point (step ST108).If there is not a national highway link, indexing unit 3 checks that removing of entering vehicle forward direction front, link outer in linking the link of this node gives and decide whether to exist in the angular range vehicle can be along its link that rolls away from (step ST104).If decide the link that do not exist this vehicle to roll away from the angular range giving, then map information retrieving device 3 is regarded this node as does not have this vehicle can be along the place on the road of its craspedodrome; The driver must carry out some driver behavior, simultaneously with this node as treating guiding point output (step ST108).If the link that has this vehicle to roll away from, then map information retrieving device 3 with this link setting be treat to check next time enter link (step ST105).If add up to distance to surpass the set a distance scope (step ST106) of giving from current position up to the node that enters the link front, then map information retrieving device 3 constipation bundles retrieval, because this vehicle has reached the upper limit of retrieval distance, and the output indication is provided with the signal (step ST107) of the point that will lead.If vehicle does not also reach the upper limit of retrieval distance, then map information retrieving device 3 is got back to step ST102, and repeats the key road of this vehicle location front is retrieved.In case map information retrieving device 3 completing steps ST107 or step ST108, program is just got back to step ST100 and is waited for that the link at this vehicle location place upgrades.

At step ST108, map information retrieving device 3 is also exported the entering angle from the vehicle location to the node except that the node number of guiding point is treated in output, enter link No., up to the distance of node, or class likelihood data (suppose in following explanation: above-mentioned information also exports navigation information treating apparatus 4 to).Entering angle can be from be present in link data the link joint angle obtain, and can be by adding up to and obtain to being present in link range in the link data up to the distance of node.

Then, how explanation navigation information treating apparatus 4 is presented at the relevant navigation information of being determined by map information retrieving device 3 for the treatment of guiding point on the display device 6.In this instructions, as a case description enlarged map of crossroad shown in Figure 6 is presented at situation on the display device 6.In Fig. 6 A and 6B, the boundary line on a road of label 30 expressions.The road axis that label 31-34 represents in the intersection to be drawn, the crossing link is defined in road network data shown in Fig. 4 A and Fig. 4 B.The mark on road of label 35 expression number.The symbol of label 36 expression indication road side facilities.The mark of the vehicle approach axis of this guide device is equipped with in label 37 expression indications.There is the show tags of the information that will inform in label 38 indications in this system.

Fig. 7 represents the content of intersection shown in Figure 2 set of map data 14; This content comprises and is used to draw the pictorial information of this class of enlarged map figure of an intersection as shown in Figure 6A.Road boundary line data 14a is the solid line data set that is used to draw boundary line, road 30.Road centreline data 14b is the dotted line data set that is used to draw road axis 31-34; The connected link of intersecting corresponding to road number is stored as road axis data 14b.It is map brushing case (font patterns) that symbol data 14c has what be used to draw road labelled notation 35 and facility symbol 36, and shows the centre coordinate data of indicating to draw the position.

Fig. 8 is the explanatory view of the system operation example of the expression guide device of using this embodiment of the invention.The map of the vehicle periphery of display device 6 these guide devices of display device is together with vehicle position mark 39.The demonstration of vehicle position mark 39 and background map is to utilize the cartographic information that is stored in the cartographic information memory storage 1, the current position coordinates that detects by current position detecting device 2, and the like information be plotted in them in the frame memory in the plotting unit 7 shown in Figure 1 by plotting unit 7 and they delivered to display device as picture intelligence realize.When only the show tags 38 that exists when the information that can be apprised of of indication is shown, just responds the operation that the driver utilizes input media 5 and go to show that navigation information is possible.Display device 6 can so be constituted, causing show tags 38 only is a mark and the input media 5 set hardkey switch that is other places, and can constitute a touch-screen input device that uses in the display device 6 of packing into, just begin to inform the operation of navigation information when contact show tags 38.

Fig. 9 illustrates the treatment scheme of navigation information treating apparatus 4.At first, the navigation information treating apparatus obtains the relevant information (step ST200) for the treatment of guiding point from map information retrieving device 3.Owing to shown in the step ST107 of Fig. 5, always do not have information, so navigation information treating apparatus 4 is checked its exist (step ST201) about point to be led.If do not have this information, navigation information treating apparatus 4 enters step ST211.If there is an available point to be led, then navigation information treating apparatus 4 obtains pointer (being represented by the label 15n among Fig. 4 (2)) (step ST202) to the intersection map datum described in the node data by the node number as key.Then, navigation information treating apparatus 4 checks to have set effective value (step ST203) whether for the intersection map datum in pointer 15n.If set effective pointer value, navigation information treating apparatus 4 is just from depositing the intersection set of map data 14 of cartographic information memory storage 1 in, obtain corresponding to the intersection map datum for the treatment of guiding point by the valid pointer value, and the intersection map datum temporarily is kept in the storer of navigation information treating apparatus 4 (step ST204).If also do not set effective pointer value, navigation information treating apparatus 4 just enters step ST211, because there is not corresponding intersection map datum.

After obtaining the intersection map datum, navigation information treating apparatus 4 instruction drawing devices 7 are drawn show tags 38, and enter the state (step ST206) of wait from driver's request of input media 5.After the driver's request that receives from input media 5, navigation information treating apparatus 4 will be deposited the intersection map datum from what map information retrieving device 3 received, enter link No. and entering angle and be sent to drawing device 7, the device 7 that charts then begins to draw the intersection map and it is presented at (step ST207) on the display device 6.Drawing the intersection map finishes in the following manner: according to the angle order that enters the intersection to boundary line, road data 14a shown in Figure 7, road centreline data 14b, symbol data 14c or the like is rotated coordinate transform, and data after launching conversion in the frame memory scope of while in drawing device 7.The rotation coordinate conversion is to be present in the process of the order of intersection approach axis hereinbefore according to the picture information data sequence replacement of regulation coordinate system arrangement.After finishing the intersection drawing Map, navigation information treating apparatus 4 number obtains corresponding to the road axis data that enter link by detecting the respective link that is recorded in the form that is coupled with the road axis data.Then, navigation information treating apparatus 4 is plotted in the arrow 37 of indication approach axis shown in Figure 6 on the road axis.

Be presented at since the intersection map of drawing on the display device 6 through one give fix time after (step ST208), the instruction that navigation information treating apparatus 4 will be wiped this intersection map is sent to drawing device 7 (step ST209).When receiving this instruction, drawing device 7 just wipe the intersection map that shown and once more demonstration as the map of Fig. 8 and so on.

Then, navigation information treating apparatus 4 reexamines intersection to be led (step ST210).If this intersection does not also change, then navigation information treating apparatus 4 turns back to step ST206 request waiting status.If step ST206 without any request, then installs 4 and enters step ST210, only check when vehicle ' whether the crossing of waiting to lead changes.If change in step ST210 intersection to be led, then navigation information treating apparatus 4 instruction that will wipe show tags as shown in Figure 8 shown on display device 6 " GUI DE " 38 sends to drawing device 7, and returns step ST200 then.

Though the road crossing net showing on the display device 6 is as shown in Figure 6A erased (step ST208 and 209) automatically after through a schedule time, outside this function, acceptable another function of in navigation information treating apparatus 4, adding, for example the new touch-screen switch " RETURN " 55 shown in the synoptic diagram of Fig. 6 B is shown, as the delete instruction device of erasing the intersection net that shows on the display device 6 shown in Fig. 6 B, when the driver touches when being presented on the display device 6 this new touch-screen switch " RETURN " 55, at this situation navigation information treating apparatus 4 display device 6 is delivered in this instruction, to erase the intersection net of demonstration, and display device 6 receives this instruction, erases the intersection net of demonstration.Then, display device 6 shows map shown in Figure 8 and enters step ST210.Embodiment 2

As shown in figure 10, the guide device of embodiments of the invention 2 also has a route setting device 8 except structural detail shown in Figure 1.This route setting device 8 can be by input media 5 and selects one by one to arrive the link of destination and constitute, or can so constitute so that the driver only sets a destination by input media 5, be by the guide device system-computed that is provided from the best route of current position simultaneously.Many well-known technology are arranged such as the Dijkstra method, the good search mathematical method again of picture retrieval algorithm etc. all can be applicable to the calculating optimum route, and the method for calculated route are not themes of the present invention.Therefore, omission is to its details and omissions explanation.To illustrate that now supposition will be sent to map information retrieving device 3 as the route data that the link sequences continuous from the destination of starting point (current point) to road network shown in Figure 3 calculated, the vehicle front of notice on a route be relevant to have the situation of navigation information of crossing of the road of the right side or left-hand bend, in the present embodiment, this operation only just realizes when vehicle is positioned on the route of setting by the route setting device.

For detection wait the to lead method of intersection almost identical with process shown in Fig. 5 process flow diagram, but except following some: that is to say, the step ST103 of this process flow diagram is removed, and the contents processing of step ST104 becomes " except entering link; is one of approach axis the place ahead given the route link of deciding to exist vehicle to roll away from the angular range in linking the link of this node? "At step ST104, with give decide angle or more the wide-angle slalom course a bit as treating that guiding point is output.After the step ST104 process of following of navigation information treating apparatus 4 can as shown in Fig. 9 embodiment 1 those.Or corresponding to the process of step ST207 by obtaining each corresponding to the route link that enters the intersection with roll the road axis data of the route link of intersection away from, the process that can show with high light to the route that this vehicle in the intersection should be selected, this process is similar to the process of drawing arrow 37 in the step ST207 process, for example to pass through drawing one heavy line on the centreline data indication timberline of road.Embodiment 3

By the guide device of the embodiment of the invention 3, as represent to be the equipment that on the structure of embodiment 2, adds instantaneous speech power 9 again shown in Figure 11 calcspar of its system architecture.Variety of way as instantaneous speech power 9 is imaginabale: a kind of mode is to resemble voice words allusion quotation set in the system voice synthetic method sequence transformation of input phonetic code is become voice signal by consulting; A kind of mode is the record voice to be carried out digitizing and after becoming numerical data by pulse code modulation (PCM) method or adaptive differentiated pulse code modulated (ADPCM) method, numerical data is divided into some sentences unit and it is deposited in the storer that is provided with in it, call over speech data and the conversion of their actual figures one mould is obtained voice signal according to the sentence code given again from the outside, a kind of mode is to comprise impact damper RAM in instantaneous speech power 9, the PCM/ADPCM data that will deposit in the cartographic information memory storage 1 according to the sentence code given from the outside are temporarily read in impact damper RAM in the lump again, so that for converting voice signal to this read data is delivered to D/A (D/A) converter; Or similar fashion.If this system is based on the PCM/ADP speech data that is stored in the sentence unit in the instantaneous speech power 9, according to the sentence code reproducing speech given from the outside, then the operation of this system will be described below.

Figure 12 illustrates assignment to the sentence code of each sentence in the instantaneous speech power 9 with when with this sentence code input instantaneous speech power 9, the sound wave content that sound.This content is equipped with this guide device in supposition vehicle is set to the working direction that the distance of wanting guiding point and this vehicle of front should be directed to.

Detect in this system method of guiding point of wanting in service identical with embodiment 2 described appropriate sections.After this, the identical step ST207 in Fig. 9 of appropriate section of those processes of navigation information treating apparatus 4 and embodiment 1 and embodiment 2.Present embodiment in executed after the step ST207 and before execution in step ST208 process, carry out all processes shown in Figure 13 process flow diagram.

At first, judgement treats on a route guiding point place will to which direction turning (step ST271).This judgement can be finished by the following method: obtain all to link from route data and wait to lead the entering the route link and roll the route link away from of node, calculate the roll angle of this route to this node approach axis according to the link joint angle that is recorded in this node in the cartographic information again.That is to say,, judge that then this direction is for turning right if rolling the angle away from changes to approach axis in the direction of the clock; If this angle becomes counter-clockwise direction, then this direction is judged as left-hand bend.Because all routes all will be elected the intersection that will lead as originally with the node that gives fixed or more wide-angle bending, so can obtain and the almost consistent result of driver's sensation by above-mentioned judgement.

Then, obtain from vehicle location to the distance for the treatment of guiding point (step ST272).If map information retrieving device 3 obtains these distances and install 3 to record and want guiding point also this distance to be sent to navigation information treating apparatus 4, then can directly use the value that sends; If the range information of not sending here from map information retrieving device 3, then the available following mode of this distance obtains: the link No. that obtains this vehicle place from current position detecting device 2, obtain formation each linkage length from cartographic information again, and then each linkage length is amounted to from vehicle place link to the link sequences that enters the link for the treatment of guiding point.

After acquiring the distance of wanting guiding point and the relevant judged result of turning right or turning left, produce a sentence code sequence (step ST273) of navigation information by this distance and this judged result.As represent in the 4-digit number of sentence code, the sentence code distance to a declared goal information of " 01 " is arranged in last two numerals as shown in the explanatory view of Figure 12 of concerning between sentence code and the voice; In last two numerals, there is the sentence code of " 02 " to specify the information of representing working direction.Therefore, first group of sentence code is set to " 01 " and the representative code with the distance of kilometer unit representation in last two numerals.Second group of sentence code is set as " 0201 " or " 0202 " according to the judged result of turn direction.For example, the voice messaging of " locating leaving about two kilometers " if need then produces the sentence code sequence of being made up of " 0102 " and " 0202 " two sentence codes.

Resulting sentence code sequence is sent to instantaneous speech power 9 by this order.When instantaneous speech power 9 receives code sequence, just export as voice signal according to the D/A conversion of corresponding relation execution speech waveform data shown in Figure 12 and with them.As a result, this guidance system response driver's request shows the intersection map resembling shown in Fig. 6 A, and also sends the voice guidance of " leaving two kilometers approximately locates ".Embodiment 4

In the above whole embodiment, the intersection map datum that is used to lead is given first generation, as the picture information in one group of cartographic information memory storage 1 to be deposited.But this type systematic has a problem, promptly, owing to be used to produce the operational ton of intersection figure and the cause of data volume, be difficult to all nodes are produced the intersection map, so have to suppose a kind of situation that can not as shown in the step ST203 of Fig. 9, show the guiding map of the institute's reconnaissance of waiting to lead.For addressing this problem, provide directly to produce the guidance system of intersection map from road network data as embodiment 4.The guidance system structure of embodiment 4 is identical with embodiment illustrated in fig. 10 2 structure.Certainly, this guidance system structure can be the structure that has instantaneous speech power 9 shown in Figure 11.

Now in conjunction with the operation of the map information retrieving device 3 of the flow chart description present embodiment of Figure 14.At first, map information retrieving device 3 receives the route data that sets by route setting device 8, and first link setting that will constitute in the link sequences of this route is examine link (step ST300).Then, map information retrieving device 3 obtains the node data (step ST301) of the destination side distal point of examine link from cartographic information.If resulting node is the destination node of this route end, then map information retrieving device 3 finishes this process (step ST302), if not then map information retrieving device 3 carries out step ST303.

At step ST303, map information retrieving device 3 obtains being connected to the next route link (rolling the route link away from) of examine link by the node that obtains from route data.Then, consult at the connection link angle described in the node data that obtains, map information retrieving device 3 calculates by the examine link and rolls the relative angle that the route link forms away from, and the inspection angle of calculating is given and decided angle or bigger (step ST304).If this angle is decided the angle greater than giving, then map information retrieving device 3 judges that this node is the place of will leading, and reads the data of node data and all links of linking this node it is preserved (step ST305) in it by consulting the cartographic information that is stored in the cartographic information memory storage 1.If at step ST304, by the examine link with to roll the formed angle of route link away from be to give deciding angle or littler, map information retrieving device 3 skips steps ST305 then are with the process of execution in step ST306.At step ST306, it is the examine link that this device will roll the route link definition again away from, getting back to step ST301, and repeats same process as previously mentioned.

Figure 15 illustrates an example that produces the crossing intersection data group of waiting to lead by preceding method.Because when device 3 receives route link data from route setting device 8, map information retrieving device 3 is ceaselessly carried out retrieval until the destination, so in the completed stage of process shown in Figure 14, about the node data and the connection chain circuit-switched data of all intersections that will lead from the starting point to the destination all obtains as crossing intersection data to be led with the form of Figure 15.

After all processes of finishing Figure 14, when being described in a vehicle location on the route, the existence of the navigation information that can to driver provide of show label 38 by being presented on the general map display screen shown in Figure 3 that the expression guide device produces, and guide device notifies driver's navigation information can inform the driver.When being in can lead state the time driver by input media 5 during to the input request of guiding system, navigation information treating apparatus 4 is just carried out all processes shown in Figure 16 process flow diagram.

According to the process flow diagram of Figure 16, at first, navigation information treating apparatus 4 obtains the current position link No. (step ST400) of vehicle position from current position detecting device 2.Then, navigation information treating apparatus 4 bases deposit the node on the route link data sequential search route link of map information retrieving device 3 from current position link to the destination side in, thereby the node on these route links that obtain is compared so that detect the next one in this vehicle location the place ahead intersection to be led (step ST401) with crossing intersection data to be led.

Navigation information treating apparatus 4 is from the lead intersection data of intersection of map information retrieving device 3 waiting of obtaining recording, to produce the intersection mapping data (step ST402) of intersection to be led by the road intersection data.Various intersections map may be produced, but intersection map shown in Figure 17 will be described as an example herein.In the figure, label 40-43 represents rectangular solid line, i.e. the road link of an intersection is linked in its width representative.Label 44 illustrates the circle of representing the intersection.Label 45 illustrates the alphabetic string of representing this

intersection name.Label

46 and 47 is alphabetic strings of representing the destination name of the place name that will arrive by this direction running when vehicle.A routing indicator of label 48 these working direction of expression indication crossing intersection part.

At first, the node data of navigation information treating apparatus 4 from crossing intersection data to connect the link joint angle of link, makes initial point so that the display surface central point is got, and the width that draws is that the straight line of 40-43 is to the joint angle direction.As for the joint angle on every road, vehicle is set in vertical direction by the route link direction that it enters the intersection; Other links are then according to this relative angle that enters link direction drawn.Certainly, in some use-pattern, they can by for example the north is set in upward to absolute angle draw.Link joint angle in the node data can be used as straight line by original angle and draw the angle, or is quantized into eight directional, and the link joint angle in 16 orientation etc. can be used as shaping (shaping).Then, at every road intersection point, draw at the center of screen and to represent coloured circle of intersection.In the display screen bottom with the intersection name 45 of drawing of node name described in the node data.If the on purpose data of name statement in link data, then navigation information treating apparatus 4 obtains these data to have the rectilinear end drafting destination name alphabetic string 46 and 47 of representing the respective link width.At last, device 4 utilizes and enters entering link and rolling the link joint angle of link away from of intersection, draws the narrow slightly straight line of its width from the display screen center to the joint angle direction in drawing the wide line scope.Also draw a triangle rolling end of link away from.They are formed in intersection routing indicator 48.

Now turn back to the process flow diagram of Figure 16, navigation information treating apparatus 4 will be sent to plotting unit 7 with the draw data that said method produces, they are presented at (step ST403) on the display device 6.From demonstrate draw data through one give fix time after (step ST404), navigation information treating apparatus 4 just with one the instruction send to plotting unit 7, to wipe this intersection map (step ST405).

Because the guide device of present embodiment 4 is operated as described above like that, after the cartographic information that map information retrieving device 3 is at first handled, the operation of reading cartographic information from cartographic information memory storage 1 is not to occur in that vehicle moves from current position or during from input media 5 requests, therefore, do not exist generation from stand-by period that CD-ROM reads.So can realize to quick response from the request of input media 5.Though the guiding of the intersection that will lead to vehicle location the place ahead closest approach has only been described in the present embodiment,, the continuous request that also can respond by input media 5 shows the intersection to be led than outbreeding cross road mouth certainly.Embodiment 5

Figure 18 is the calcspar of system architecture of representing according to a fifth embodiment of the invention the guide device of (embodiment 5).In Figure 18, label 10 expression destination navigation information display device (after this are called destination navigation information display device in the following description, be also referred to as destination navigation information device in the claims), be used for producing from the navigation information of current position to the destination that this vehicle is just driving towards of vehicle according to the navigation information that embodiment illustrated in fig. 11 guide device navigation information treating apparatus 4 produces, be sent to display device 6 with the navigation information that is used for being produced by plotting unit 7, display device 6 shows navigation information on map then.This destination information display device 10 is contained in the navigation information treating apparatus 4.Because other structure members, for example the cartographic information memory storage 1, current position probing position 2, map information retrieving device 3, navigation information treating apparatus 4, the structure member of employed same numeral mark is identical in the guide piece of input media 5 and display device 6 and embodiment 1 shown in Figure 1, so in the explanation of this omission to these parts.

Below explain the operation of the guide device of embodiment 5.Figure 19 is the process flow diagram of expression according to the part of the operation of the guide device shown in Figure 180 of embodiments of the invention 5.

Except that following some, the method that shows the destination navigation information method with embodiment 1 shown in Figure 9 basically is identical, that is, in the process flow diagram shown in Figure 19 according to embodiment 5, step ST221 (" showing to the distance for the treatment of guiding point " process) is inserted between step ST205 and the step ST206.Step ST221 carries out distance between current position of display automobile or truck on the display device 6 and destination.In addition, step ST222 also inserts and replaces the step ST211 shown in Fig. 9.Step ST222 carries out the distance of erasing show label " GUI DE " and showing from display device 6.The operation of step ST221 and ST222 is carried out by the destination information display device 10 that is contained in the navigation information display device 4, and operating result is sent to display device 6 by plotting unit 7.Therefore, in step ST221 operation, carry out the process that shows to the distance of destination to be led.For example shown in Figure 20, by " 2km " of label 50 mark just be between current place 39 of vehicle and the destination apart from (navigation information), as to the distance display of destination on display device 6.This navigation information is moved according to vehicle by destination information display device 10 and changes.At step ST222, in step ST205 and ST221, be presented at the show label " GUI DE " on the display device 6 and erased by the distance " 2km " (navigation information) of label 51 mark.

As above described in detail, in the guidance system of embodiment 5, because showing the current place 39 of vehicle and the distance between the destination on the display device 6, its effect is for when the driver need not detailed navigation information, he needn't by or touch by the touchscreen keys of label 38 marks or apart from key " GUI DE ", just can obtain the rough navigation information of relevant destination.Embodiment 6

Figure 21 is the process flow diagram of a part of operation of representing according to a sixth embodiment of the invention the guide device of (embodiment 6).Figure 22 is shown in Figure 21 according to screen display example in the guide device of embodiments of the invention 6.Among the step ST223 (process of " showing direction "), on display device 6, show orientation (being reference " arrow " 52 orientation that marked shown in Figure 22) as shown in figure 21 to destination to be led to destination to be led.In step ST224 shown in Figure 21 (step of " erasing " GUI DE " show label and direction "), carry out and erase show label " GUI DE " and the demonstration of direction (" arrow " 52) on display device 6.Other operations of the guide device of embodiment 6 are identical with the operation of embodiment 5 shown in Figure 19.Therefore omit the explanation of other steps at this.The navigation information that uses in step ST223 is produced by destination information display device 10, is presented on the display device 6.In addition, because the system architecture of the guide device of embodiment 6 is identical with the system architecture of the guide device of embodiment 5, omit explanation to its system architecture at this.

The below operation of the guide device of explanation embodiment 6.

The navigation information that uses at step ST223 is produced by the destination information display device 10 that is contained in the navigation information treating apparatus 4.The navigation information that is produced is sent to display device 6 by plotting unit 7.Therefore, expression is positioned in display device 6 as shown in figure 22 from the arrow by the orientation (being direction) of current position to the destination of the vehicle of label 39 mark and shows above the label " GUI DE " 38 in the operation of step ST223.Vehicle drivers just can be discerned the orientation to the destination by seeing the arrow 52 that is presented on the display device 6.In step 224, erase respectively by

label

38 and 52 show label " GUI DE " and the displaying symbols " arrow " that mark from display device 6.Because the operation of other steps of process flow diagram of embodiment shown in Figure 21 6 is identical with the operation of the step that indicates same numeral of the process flow diagram of embodiment 5 shown in Figure 19, so omit explanation to them at this.

As above described in detail, in the guidance system of embodiment 6, because provide to the driver with easy or simple form (arrow form) by display device 6 as rough and effective navigation information to the destination from the orientation of current place 39 to the destination of vehicle, for identification, its effect for driver when the driver need not detailed navigation information needn't be any by or touch the show label " GUI DE " that the label 38 that shows marks on display device 6, just can know rough and effective navigation information to the destination.Embodiment 7

Figure 23 is the calcspar according to the system architecture of the guide device of embodiments of the invention 7.Figure 24 is the calcspar according to another system architecture of the guide device of embodiments of the invention 7.The structure of the guide device of the embodiment 7 shown in Figure 23 and 24 is respectively the combination between the system architecture of embodiment 5 shown in Figure 180 and the embodiment 2 shown in Figure 10 and 11 and 3.Except destination information display device 10 is housed in navigation information treating apparatus 4, identical with the structure of the guide device of the embodiment 7 shown in 24 with the structure of the guide device shown in Figure 10 and 11 with 23.So omit explanation to them in this province.

Figure 25 is the process flow diagram according to the part of the operation of the guide device of the Figure 23 and the embodiment of the invention 7 shown in Figure 24.Figure 26 is according to the demonstration example on the display device 6 in the guide device of the embodiment of the invention 7 shown in Figure 23 and 24.The direction of traffic sign (navigation information) that in the step ST225 of process flow diagram shown in Figure 25 (process of " demonstration "), on display device 6, shows the direction of traffic of indicating the vehicle of shifting to or shift near the destination for the driver to the direction of traffic for the treatment of guiding point.In step ST226 shown in Figure 25 (step of " erasing " GUI DE " show label and direction of traffic "), erase show label " GUI DE " that shows at step ST205 and the direction of traffic sign that shows at step ST225 from display device 6.The operation of other steps is identical with the operation of the process flow diagram of embodiment shown in Figure 19 5.The direction of traffic sign 53 as navigation information that uses in step ST225 is produced by destination information display device in the navigation information treating apparatus 4 10 and is shown by display device 6.

The below operation of the guide device of explanation embodiment 7.

The navigation information that uses among the step ST225 is produced by the destination information display device 10 that is contained in the navigation information treating apparatus 4, and is sent to display device 6 by plotting unit 7.Therefore, on step 225 middle rolling car Directional Sign (arrow) 53 is presented at show label on the display device 6 " GUI DE " as navigation information.The driver can be from by seeing that direction of traffic sign (arrow) 53 obtains the navigation information with easy or simple form (arrow), and the direction of traffic of identification approaching destination.In step ST226, erase show label " GUI DE " 38 and shown direction of traffic sign " arrow " 53 (navigation information) from display device 6.Because it is identical to indicate the operation of step of same numeral in the process flow diagram of embodiment shown in Figure 25 7 in the process flow diagram of the operation of other steps and embodiment 5 shown in Figure 19, so omit explanation to them at this.

As above described in detail, in the guidance system of embodiment 7, because by display device 6 with easy or simple form (arrow form) to the driver provide drive towards or the direction of traffic sign 53 (navigation information) of approaching destination as rough and effective navigation information, for identification, its effect for driver when the driver need not detailed navigation information needn't be any by or touch the show label " GUI DE " that the label 38 that shows marks on display device 6, just can know rough and effective navigation information to the destination.Embodiment 8

Figure 27 is the screen display example according to the guide device of the embodiment of the invention 8.Figure 28 is another example according to the screen display of the guide device of the embodiment of the invention 8.Because show label 38 is as director switch in the embodiment shown in Figure 27 and 28 8, arrow 52 indication from the current position of vehicle to the orientation, destination, arrow 53 is as driving towards or the direction of traffic sign of approaching destination, these all with according to

embodiment

5,6 with 7 guide device in use identical, so omit explanation to them at this.In addition, because the guide device system architecture of embodiment 8 is identical with the guide device system architecture of

embodiment

5 and 7, so omit explanation to them at this.

The below operation of the guide device of explanation embodiment 8.

In the guide device of embodiment 8, all or part of of navigation information, the current position 39 of vehicle for example, to destination distance 51, indication is from the arrow 52 in the orientation of current position 39 to the destination of vehicle and drive towards or the arrow 53 of approaching destination is produced by destination information display device 10, be presented on the display device 6, they are to be simultaneously displayed on the display device 6.These navigation information projects are produced by destination information display device 10, are sent to display device by plotting unit.Therefore, at step ST205 and ST221, at step ST205 and ST223 with in step ST205 and ST225, these navigation information projects are produced by destination information display device 10, are presented on the display device 6.Then, at Figure 19, the step ST222 shown in 21 and 25 erases these navigation information projects from display device 6 among ST224 and the ST225.

As above described in detail, in the guidance system of embodiment 8, because provide such as distance 51 to the driver with easy or simple form (arrow form) to the destination by display device 6, towards the conduct of orientation, destination 52 and direction of traffic sign 53 drive towards or the navigation information of the navigation information of approaching destination as rough and effective navigation information, for identification, its effect for driver when the driver need not detailed navigation information needn't be any by or touch the show label " GUI DE " that the label 38 that shows marks on display device 6, just can know rough and effective navigation information to the destination.

Can find out from above-mentioned explanation, according to first aspect present invention, this guide device is configured, comprise: one is used to store the cartographic information memory storage of cartographic information, one is used for by detecting such as gps signal, the current position detecting device of the position of signal such as gyro signal and speed pulse signal regulation vehicle on cartographic information, a map information retrieving device, be used for treating guiding point from the cartographic information retrieval according to current position, a navigation information treating apparatus, be used for depositing in the relevant navigation information for the treatment of guiding point of cartographic information generation of cartographic information storing apparatus by processing, one is used to show the relevant display device for the treatment of the navigation information of guiding point, and input media, be used to import the various inputs of the navigation information input that comprises response driver request, so this guide device has and can respond the advantage that the driver asks to show the navigation information of relevant request point.

In addition, according to second aspect present invention, this guide device is configured and comprises: a route setting device, be used for a course is determined in the destination that utilizes the input media input, and map information retrieving device, the cartographic information of this indexing unit from be stored in the cartographic information memory storage be along the relevant navigation information for the treatment of guiding point of the determined route of route setting device retrieval, and therefore, this guide device has the advantage that can export about along the navigation information that needs the place of this route.

In addition, according to third aspect present invention, this guide device is configured and comprises: a cartographic information memory storage that is used to store cartographic information, a current position detecting device, in order to pass through to detect such as gps signal, vehicle location on signal such as gyro signal and the speed pulse signal regulation cartographic information, a map information retrieving device, in order to treat guiding point from the cartographic information retrieval according to current position, a navigation information treating apparatus, produce relevant navigation information in order to the cartographic information that deposits the cartographic information memory storage by processing in when its current route is advanced when the intersection of wanting guiding point that vehicle will pass through, a display device, in order to show the relevant navigation information of the intersection of guiding point for the treatment of, and input media, be included as the various inputs of the navigation information input of response driver request in order to input, this guide device has and can respond the driver and ask to export relevant to a certain navigation information that needs the intersection of point.

In addition, according to fourth aspect present invention, this guide device is configured and comprises instantaneous speech power, in order to pass through the voice output navigation information as the voice navigation information, and navigation information treating apparatus, in order to carry out a kind of the processing so that instantaneous speech power is exported the relevant voice navigation information of navigation information that shows simultaneously with its display, therefore, this guide device has can make the advantage of driver by its sense of hearing identification navigation information, thereby also just can reduce the driver is the difficulty of distinguishing the navigation information aspect, because he mainly will use its vision during driving.

In addition, according to a fifth aspect of the invention, guide device is so constituted depositing in the cartographic information memory storage by the described cartographic information of the network information of expressing at least by the road annexation of link and node, therefore, this guide device has and can compress the advantage that will deposit the quantity of information in the cartographic information memory storage in.

In addition, according to a sixth aspect of the invention, because guide device has the destination information display device, be used to produce from current position to the destination of vehicle with in the destination or near the navigation information of destination be used for this navigation information is offered display device 6, when the driver does not need detailed navigation information, its effect is that the driver of vehicle can discern rough and effective navigation information project, for example to the destination distance, towards the orientation, destination with drive towards or the direction of traffic of approaching destination.

Though now described most preferred embodiment of the present invention with special case, this explanation is only for for example, and is self-evident, also may make the many variations and the remodeling that do not break away from following claims spirit and scope.

Claims

1. guide device that is used for vehicle comprises as follows:

The cartographic information memory storage is used to store cartographic information,

Current position detecting device is used to stipulate the current position of vehicle on map by the cartographic information indication,

Map information retrieving device is used for determining to treat guiding point according to current position by retrieving this cartographic information,

The navigation information treating apparatus, be used for by this cartographic information that processing deposits described cartographic information memory storage in produce relevant treat the navigation information of map around the guiding point and respond the Vehicular occupant request export described navigation information for Visual Display usefulness and

Plotting unit is used to draw this position now map on every side of this vehicle, or draws from the described navigation information of described navigation information treating apparatus output.

2. according to the guide device of claim 1, it also comprises the route setting device, is used for determining that vehicle advances to the route of destination,

Wherein said map information retrieving device is along the route decision point of being determined by described route setting device to be led.

3. according to the guide device of claim 1, if this vehicle of wherein said map information retrieving device decision along intersection that the capable words of carrying out of its current route will run into as treating guiding point.

4. according to the guide device of claim 1, it also comprises instantaneous speech power, be used for as voice messaging output information,

Wherein the navigation information treating apparatus is not only exported navigation information to be shown, and to the relevant voice navigation information with this navigation information of described instantaneous speech power output.

5. according to the guide device of claim 1, the wherein said cartographic information memory device stores network information, link and node represent that interconnective relation of road and described navigation information treating apparatus produce the picture information of establishing breath as guiding according to this network information in the network information.

6. according to the guide device of claim 1, concern between the relevant road for the treatment of guiding point that wherein said map information retrieving device this cartographic information from be stored in described cartographic information memory storage obtains to be represented by link and node, produce the relevant intersection map datum for the treatment of guiding point, with the relevant relevant intersection map for the treatment of guiding point for the treatment of the described intersection map data production of guiding point as navigation information of described navigation information treating apparatus basis.

7. according to the guide device of claim 1, it also comprises destination navigation information display device, be used for according to from reach and lead this navigation information that each signal conditioning package provides and produce the current position of relevant this vehicle and treat guiding point rough navigation information on every side.

8. according to the guide device of claim 7, wherein said destination navigation information display device produces relevant current position from this vehicle to the distance for the treatment of guiding point, from the current position of this vehicle to the direct of travel of the direction for the treatment of guiding point and this vehicle at least one information as rough navigation information.