JP2022146261A - Guidance device - Google Patents

Abstract

To enable a guidance route to be advised in quick response to guidance for fellow passengers, etc.SOLUTION: A guidance device 10 comprises: a guidance unit 14 for generating and acquiring a route to a destination; a sound output unit 15 for outputting guidance information on the basis of the acquired route; and a keyword analysis unit 12 for acquiring spoken voice information and detecting a keyword pertaining to guidance. The guidance unit 14 generates and acquires a route having been rerouted along the content indicated by the spoken voice information.SELECTED DRAWING: Figure 1

Description

The present invention relates to a guidance device having a guidance section that outputs guidance information along a searched route.

A guidance device such as a car navigation device searches for a route to a preset destination and provides guidance by voice or the like along the searched route.

In Patent Document 1, the following invention is described for the purpose of providing guidance that is easy for the driver to understand as if it were a fellow passenger. From the guide history stored in the guide history storage means, the driving situation feature value calculation means calculates the driving situation feature value at the time of guidance, and the guide classification means classifies the guide into a category in which the driving situation feature value for the guide satisfies the conditions. . Then, the utterance content variable portion of the driving situation feature quantity is replaced with a variable partial symbol, the utterance content with the highest frequency for each classification is selected by the utterance content selection means, and stored in the storage means as a guide rule.

JP 2010-190773 A

Patent Document 1 provides an easy-to-understand guide for a fellow passenger, but there are cases where the guide is provided for reasons such as the fact that the fellow passenger is familiar with the area where the fellow passenger is actually traveling. In such a case, if the guidance by the guidance device is also performed, it may conflict with the guidance of the fellow passenger. For example, on the route guided by the guide device, the driver may be confused if the fellow passenger guides the driver to turn right (or turn left) at an intersection where the driver should go straight. In addition, when following the guidance of a fellow passenger, the driver deviates from the route guided by the guidance device and must reroute. Sometimes I feel.

One example of the problem to be solved by the present invention is to enable route guidance to be promptly provided in response to guidance from a fellow passenger or the like.

In order to solve the above-mentioned problems, the invention according to claim 1 comprises a route acquisition unit that acquires a route to a destination, a guide unit that outputs guidance information based on the acquired route, and a voice information that acquires speech information. and a voice detection unit for detecting a keyword related to guidance, wherein the route acquisition unit acquires a modified route according to the content indicated by the uttered voice information.

In the invention according to claim 5, an analysis result acquisition unit acquires an analysis result of the uttered voice information including the keyword related to the guidance detected by the voice detection unit, and the analysis result acquired by the analysis result acquisition unit and a route searching unit that searches for a route corrected according to the content indicated by the uttered voice information based on the information.

The invention according to claim 6 is characterized in that the guidance method according to claim 5 is executed by a computer as a guidance program.

The invention according to claim 7 is characterized in that the guidance program according to claim 6 is stored in a computer-readable storage medium.

1 is a schematic configuration diagram of a system having a guide device according to a first embodiment of the present invention; FIG. These are examples of words related to places and words related to actions. 4 is a flow chart of operations for rerouting based on guidance from a fellow passenger. FIG. 2 is another configuration example of FIG. 1 ; FIG. 9 is a flow chart of the operation of rerouting based on the guidance of the fellow passenger of the guidance device according to the second embodiment of the present invention;

A guide device according to an embodiment of the present invention will be described below. A guidance device according to an embodiment of the present invention includes a route acquisition unit that acquires a route to a destination, a guidance unit that outputs guidance information based on the acquired route, and a keyword related to guidance that acquires spoken voice information. and a voice detection unit for detecting. Then, the route obtaining unit obtains a route corrected according to the content indicated by the uttered voice information. By doing so, the route acquisition unit can acquire a route corrected according to the content indicated by the voice information uttered by the fellow passenger or the like. Therefore, it is possible to guide the route promptly corresponding to the guidance of the fellow passenger or the like.

Further, the route acquisition unit may acquire a route corrected according to the content indicated by the uttered voice information when the voice detection unit detects a keyword related to guidance. By doing so, for example, the route acquisition unit can acquire the corrected route only when the fellow passenger starts guidance.

Further, the guidance unit may immediately start outputting guidance information based on the route after acquiring the corrected route. By doing so, it is possible to promptly execute guidance along a route according to the guidance of the fellow passenger.

Further, the guidance unit may start outputting guidance information based on the route when the user starts traveling on the route after acquiring the corrected route. By doing so, when the passenger actually starts traveling along the route guided by the fellow passenger, it is possible to guide the route according to the guidance.

In addition, an analysis result acquisition unit that acquires analysis results of spoken voice information including keywords related to guidance detected by the voice detection unit, and based on the analysis results acquired by the analysis result acquisition unit, a route search unit that searches for a route corrected by By doing so, it is possible to search for a route corrected in accordance with the content indicated by the uttered voice information inside the guidance device. Therefore, communication with the outside becomes unnecessary, and even in areas where the communication environment is poor, it is possible to quickly guide a route that corresponds to the guidance of a fellow passenger or the like.

A guidance method according to an embodiment of the present invention includes a route acquisition step of acquiring a route to a destination, and a voice detection step of acquiring speech voice information and detecting keywords related to guidance. Then, the route acquisition step acquires a route corrected according to the content indicated by the uttered voice information. By doing so, in the route acquisition step, it is possible to acquire a route that has been corrected according to the content indicated by the uttered voice information uttered by the fellow passenger or the like. Therefore, it is possible to guide the route promptly corresponding to the guidance of the fellow passenger or the like.

Further, the guidance method described above may be executed by a computer as a guidance program. By doing so, in the route acquisition process executed by the computer, it is possible to acquire a route corrected according to the content indicated by the uttered voice information uttered by the fellow passenger or the like. Therefore, it is possible to guide the route promptly corresponding to the guidance of the fellow passenger or the like.

Also, the guidance program described above may be stored in a computer-readable storage medium. By doing so, the program can be distributed as a single unit in addition to being incorporated into the device, and version upgrades and the like can be easily performed.

A guide device according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. FIG. 1 is a schematic configuration diagram of a system provided with a guide device according to this embodiment.

A system shown in FIG. The guide device 10 is provided in a vehicle such as an automobile. The guidance device 10 may be, for example, a car navigation device, or may be a device that can be taken out of the vehicle, such as a smart phone or a tablet terminal.

The guidance device 10 includes a voice input section 11, a keyword analysis section 12, a guidance voice control section 13, a guidance section 14, and a voice output section 15, as shown in FIG.

The voice input unit 11 receives a voice uttered inside the vehicle. The voice input unit 11 is composed of a microphone or the like. In addition, it is preferable to install the microphone at a position where not only the driver's voice but also the passenger's voice can be acquired. Therefore, the microphones may be provided not only at one place but also at a plurality of places inside the vehicle.

The keyword analysis unit 12 acquires the spoken voice information output from the voice input unit 11 via the guidance voice control unit 13, and extracts (detects) keywords related to guidance or warning from the spoken voice information. That is, the keyword analysis unit 12 functions as a voice detection unit that acquires uttered voice information and detects keywords related to guidance.

The keyword analysis unit 12 has in advance keywords related to guidance as a database or the like. Keywords related to guidance include, for example, general guidance words such as a traffic signal, the next intersection, names of facilities around the current position, and action instructions such as turn right, turn right, and continue. It should be noted that the technology such as speech recognition and natural language processing used in the keyword analysis unit 12 and the voice analysis unit 21 (to be described later) may be a well-known technology used in what is called a smart speaker or an AI speaker. can be done.

Guidance voice control unit 13 acquires the spoken voice information input from voice input unit 11 and outputs the spoken voice information to keyword analysis unit 12 . When the keyword analysis unit 12 determines that a keyword related to guidance has been uttered, the guidance voice control unit 13 outputs the uttered voice information to the server device 20 . Then, it receives the result of voice analysis in the server device 20, and when the result is "guidance", it outputs the contents of guidance received at the same time to the guidance unit 14. FIG. That is, the guidance voice control unit 13 functions as an analysis result acquisition unit that acquires the analysis result of the uttered voice information including the keyword related to the guidance detected by the keyword analysis unit 12 (voice detection unit).

As is well known, the guidance unit 14 searches for a route to a destination, and generates and acquires information (guidance information) for guiding the driver or the like along the searched route. The guidance information acquired by the guidance unit 14 is output from the voice output unit 15 or the like. That is, the guidance unit 14 functions as a route acquisition unit that acquires a route to the destination. Further, when the result of voice analysis received from the guidance voice control unit 13 indicates guidance on a route different from the current route, the route is rerouted based on the result of the voice analysis. That is, the guidance unit 14 (route acquisition unit) acquires a rerouted (corrected) route according to the result of the voice analysis (contents indicated by the uttered voice information). Further, the guidance unit 14 functions as a route search unit that searches for a route corrected according to the contents of the speech information based on the analysis result acquired by the guidance voice control unit 13 (analysis result acquisition unit). .

The audio output unit 15 outputs audio or the like related to the guidance information generated by the guidance unit 14 . The audio output unit 15 is composed of a speaker or the like. The speaker is of course provided in the vehicle. That is, the voice output unit 15 functions as a guidance unit that outputs guidance information based on the acquired route.

The server device 20 is a well-known server computer, and can communicate with the guidance device 10 via a network N such as the Internet. The server device 20 includes a voice analysis section 21 and map information 22 .

The voice analysis unit 21 analyzes the uttered voice information transmitted from the guidance voice control unit 13 . The voice analysis unit 21 determines the content of the uttered voice information as either "guidance" or "others" from the context. If it is determined to be "guidance", the content of the speech information is analyzed to specify the content of guidance points, actions, and the like. Then, it returns (transmits) the judgment result and contents to the guidance voice control unit 13 .

Regarding the determination of "guidance" and "others" in the voice analysis unit 21, when words related to a place and words related to an action are included, it is determined as "guidance". If it does not correspond to "Guidance", it is determined as "Other".

Here, examples of words related to places and words related to actions are shown in the table of FIG. Of course, it is not limited to the words described in FIG.

Also, when judging a word related to a place, the speech analysis unit 21 refers to the map information 22 and compares it with place names and POI information around the current position. is determined as a word related to Further, when it is determined to be "guidance", the result of matching with the map information 22 is transmitted to the guidance voice control unit 13 together with the determination result. The results of this collation include the place name, intersection name, facility name, latitude and longitude, etc. of the point matched by collation with the map information 22 . A point or the like that matches with the map information 22 is a point indicated by the fellow passenger in the guidance (indicated point). The information on the indicated point and the analysis result of the words related to the action such as turning right are output to the guidance device 10 together with the determination result of "guidance" as the contents of the uttered voice information.

The map information 22 is map information possessed by a navigation device or the like, and includes place names, intersection names, facility names, and the like. This map information 22 also includes so-called POI information.

Next, the operation (guidance method) of the guide device 10 having the above configuration will be described with reference to the flowchart of FIG. A guidance program can be obtained by constructing the flowchart of FIG. 3 as a program executed by a computer having a CPU or the like.

FIG. 3 is a flowchart of the operation of rerouting based on guidance from a fellow passenger. First, the keyword analysis unit 12 acquires the utterance voice information input from the voice input unit 11 through the guidance voice control unit 13, and performs keyword analysis (step S11).

As a result of the keyword analysis, the keyword analysis unit 12 determines whether or not a keyword related to guidance has been extracted (step S12). If no keyword related to guidance is extracted (step S12; NO), the utterance is determined not to be guidance by a fellow passenger or the like, and the process returns to step S11.

On the other hand, if a keyword related to guidance is extracted (step S12; YES), the guidance voice control unit 13 transmits the uttered voice information to the server device 20, and the voice analysis unit 21 performs voice analysis (step S13). ). As described above, the voice analysis unit 21 outputs either “guidance” or “others” as a result of the voice analysis to the guidance voice control unit 13 . At this time, as described above, the location name (indicated point) of the point matched with the map information 22 and the contents such as the action indicated by the uttered voice information are also output.

Next, the guidance voice control unit 13 determines whether the received voice analysis result is "guidance" (step S14). If the voice analysis result is not "guidance" (step S14; NO), the process proceeds to step S19, which will be described later. On the other hand, if the result of the voice analysis is "guidance" (step S14; YES), the guidance voice control unit 13 outputs to the guidance unit 14 the indicated point and the action indicated by the utterance voice information at the indicated point. to determine whether reroute is necessary (step S15).

If the guidance unit 14 determines that reroute is unnecessary (step S15; NO), the guidance on the current route is continued (step S16). In other words, rerouting is not performed in the guide section 14 . As an example of such a case, there is a case where the fellow passenger gives the same guidance as the route before the guide device 10 guides.

On the other hand, if the guide unit 14 determines that rerouting is necessary (step S15; YES), the route is rerouted based on the instruction location obtained from the guidance voice control unit 13 and the behavior indicated by the utterance voice information (step S17). ). As an example of such a case, there is a case where the guide device 10 gives guidance that it is better for the fellow passenger to turn right at an intersection where the passenger should go straight on the route to avoid traffic congestion.

After the reroute in step S17, guidance is started on the route after the reroute (step S18). That is, guidance information is generated based on the route rerouted by the guidance section 14 and output from the voice output section 15 . In this embodiment, as soon as the rerouted route is generated and acquired (immediately), output from the audio output unit 15 is started.

Next, the guidance voice control unit 13 determines whether or not the operation has ended, such as turning off the power of the guidance device 10 or ending the application executing this flowchart (step S19). If the operation has ended (step S19; YES), this flow chart ends, and if the operation has not ended (step S19; NO), the process returns to step S11.

As is clear from the flowchart of FIG. 3, the guidance unit 14 (route acquisition unit) reroutes (modifies) along the contents of the spoken voice information when the keyword analysis unit 12 (voice detection unit) detects a keyword related to guidance. ) is obtained. Further, the voice output unit 15 (guidance unit) immediately starts outputting guidance information based on the route after obtaining the rerouted (corrected) route.

Further, in the flowchart of FIG. 3, when the voice analysis result is "other", step S19 is executed without determining whether or not reroute is necessary.

As is clear from the above description, step S11 functions as a voice detection process, and step S17 functions as a route acquisition process.

In the above-described embodiment, the server device 20 has the map information 22 and the server device 20 actually identifies the indicated location, but the guidance device 10 may identify the indicated location. If the guidance device 10 is a car navigation device, it often has map information (including POI information). Based on the information, it is possible to specify the designated point on the guidance device 10 side. That is, the guidance device 10 includes a map information acquisition section that acquires map information, and the guidance voice control section 13 specifies a guidance point based on the map information.

Further, in FIG. 1, the guide device 10 includes the guide unit 14, but the server device 20 may include the guide unit 14. FIG. FIG. 4 shows a configuration in which the server device 20 is provided with the guide section 14. As shown in FIG. In the case of the configuration shown in FIG. 4, when the guidance device 10 transmits the uttered voice information to the server device 20, the server device 20 determines whether or not reroute is necessary and performs reroute processing by the guidance unit 23, and the server device 20: The rerouted route information is output to the guidance device 10 as necessary. Then, the guidance device 10 receives the rerouted route information, the guidance voice control section 13 generates the guidance information, and the voice output section 15 outputs the guidance information. Alternatively, the server device 20 may generate even guidance information.

Further, when the server device 20 executes the functions of the guidance unit 14 , the server device 20 may also have the functions of the keyword analysis unit 12 and the guidance voice control unit 13 . In this case, all of the uttered voice information input from the voice input unit 11 is output to the server device 20 .

According to this embodiment, the guidance device 10 includes a guidance unit 14 that generates and acquires a route to a destination, a voice output unit 15 that outputs guidance information based on the acquired route, and a speech voice information acquisition unit. and a keyword analysis unit 12 for detecting keywords related to guidance. Then, the guidance unit 14 generates and acquires a rerouted route according to the content indicated by the uttered voice information. By doing so, the guidance unit 14 can acquire a rerouted route according to the contents of the speech information uttered by the fellow passenger. Therefore, it is possible to guide the route promptly corresponding to the guidance of the fellow passenger or the like.

In addition, the voice output unit 15 immediately starts outputting guidance information based on the route after generating the rerouted route. By doing so, it is possible to promptly execute guidance along a route according to the guidance of the fellow passenger.

Further, a guidance voice control unit 13 that acquires the analysis result of the spoken voice information including the keyword related to the guidance detected by the keyword analysis unit 12, and based on the analysis result acquired by the guidance voice control unit 13, the contents of the spoken voice information and a guide unit 14 for searching for a rerouted route along the . By doing so, it is possible to search for a rerouted route inside the guidance device 10 according to the content indicated by the uttered voice information. Therefore, communication with the outside becomes unnecessary, and even in areas where the communication environment is poor, it is possible to quickly guide a route that corresponds to the guidance of a fellow passenger or the like.

Next, a self-position estimation device according to a second embodiment of the present invention will be described with reference to FIG. The same reference numerals are given to the same parts as those of the first embodiment described above, and the description thereof will be omitted.

This embodiment has the same configuration as that of FIG. 1, but is partially different in operation when rerouted. FIG. 5 shows a flow chart of the operation of rerouting based on the guidance of the fellow passenger in this embodiment.

In FIG. 5, steps S11 to S19 are the same as in the flow chart shown in FIG. In FIG. 5, after rerouting in step S17, it is determined whether or not the current route is deviated at the indicated point (step S20). In the first embodiment, immediately after the reroute, the output of the guidance information on the route after the reroute is started. On the other hand, in the present embodiment, reroute processing is performed at the time of detecting the guidance of a fellow passenger, and route acquisition is performed. to start. That is, after obtaining the rerouted (corrected) route, the voice output unit 15 (guidance unit) outputs guidance information based on the rerouted route (relevant route) when starting to travel on the rerouted route (relevant route). is starting to output.

Further, in this embodiment, it is determined whether or not the vehicle has deviated from the route before rerouting at the indicated location. As described above, the guidance of the fellow passenger indicates the behavior at the indicated point, so by making a determination at the indicated point, it is possible to smoothly switch to the route after the reroute.

According to the present embodiment, the audio output unit 15 starts outputting guidance information based on the route when the rerouted route is acquired and the user starts traveling on the route. By doing so, when the passenger actually starts traveling along the route guided by the fellow passenger, it is possible to guide the route according to the guidance.

In addition, in the above-described two embodiments, a guidance device that provides guidance by voice has been described, but the present invention can also be applied to a navigation device or the like equipped with a display device. The guidance information in this case is, of course, not limited to voice information, and includes information such as characters and figures displayed on the display device.

Moreover, the present invention is not limited to the above embodiments. That is, those skilled in the art can carry out various modifications according to conventionally known knowledge without departing from the gist of the present invention. As long as the guide device of the present invention is still provided even with such a modification, it is, of course, included in the scope of the present invention.

10 guide device 12 keyword analysis unit (voice detection unit)
13 guidance voice control unit (analysis result acquisition unit)
14 guidance unit (route acquisition unit, route search unit)
15 Audio output unit (guidance unit)
20 server device 21 speech analysis unit

Claims (8)

a route acquisition unit that acquires a route to a destination;
a guidance unit that outputs guidance information based on the acquired route;
a voice detection unit that acquires spoken voice information and detects keywords related to guidance;
with
The route acquisition unit acquires a route modified according to the content indicated by the uttered voice information.
A guide device characterized by: 2. The guidance device according to claim 1, wherein said route acquisition unit acquires a route corrected according to the content indicated by said uttered voice information when said voice detection unit detects a keyword related to said guidance. . 3. The guidance device according to claim 1, wherein said guidance section immediately starts outputting said guidance information based on said route after acquiring said corrected route. 3. The guidance device according to claim 1, wherein the guidance unit starts outputting the guidance information based on the route when the vehicle starts traveling on the route after obtaining the corrected route. . an analysis result acquisition unit that acquires an analysis result of the uttered voice information including the keyword related to the guidance detected by the voice detection unit;
a route search unit that searches for a route corrected according to the content indicated by the uttered voice information based on the analysis result acquired by the analysis result acquisition unit;
5. A guide device according to any one of claims 1 to 4, characterized in that it comprises a. A guidance method executed by a guidance device having a guidance unit that outputs guidance information based on an acquired route,
a route acquisition step of acquiring a route to a destination;
a voice detection step of acquiring spoken voice information and detecting keywords related to guidance;
including
The route acquisition step acquires a route corrected according to the content indicated by the uttered voice information.
A guidance method characterized by: A guidance program causing a computer to execute the guidance method according to claim 6. 8. A computer-readable storage medium storing the guide program according to claim 7.

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