JP6403927B2 - Information provision control device, navigation device, equipment inspection work support device, conversation robot control device, and information provision control method - Google Patents

Description

  The present invention relates to an information provision control apparatus, a navigation apparatus, an equipment inspection work support apparatus, a conversation robot control apparatus, and an information provision control method for controlling information to be output to an information provision apparatus.

In recent years, information providing apparatuses have been used in various situations in daily life, and among them, there are many apparatuses that provide various information in a dialog format with a user.
With regard to the information providing apparatus, there has been proposed a technique for providing information with reduced user inconvenience by changing the amount of information provided by the user.

  For example, in Patent Document 1, in a navigation device as an information providing device that provides information to a driver of a vehicle, information that the driver already knows based on an answer obtained from the driver by asking the driver a question. A technique is disclosed that reduces the amount of information to be provided for items that are estimated to determine the memory fixing characteristics and are presumed to be already known by the driver.

JP 2009-168773 A

  However, in the technique as disclosed in Patent Document 1, in order to control the amount of information presented by the user, the user needs to answer the contents inquired from the information providing apparatus. However, there was a problem that the annoyance still remained.

  The present invention has been made to solve the above-described problems, and provides an information provision control device, a navigation device, and equipment inspection capable of changing the level of detail of information provided without asking the user a question. It is an object of the present invention to provide a work support device, a conversation robot control device, and an information provision control method.

The information provision control device according to the present invention includes an input reception unit that receives a question regarding information that can be provided by the information provision device, a certainty factor estimated using a modality of the question received by the input reception unit , and the question Based on the degree of coincidence between the included information and the information included in the answer information for the question, a question determination unit that determines an understanding level of information that can be provided by the information providing device, and an understanding level determined by the question determination unit And a detail level determining unit that determines the level of detail of information to be provided to the information providing apparatus.

  According to the present invention, since the level of detail of information provided thereafter can be changed based on a question issued by the user, it is possible to provide information with less troublesomeness for the user.

It is a block diagram of the car navigation apparatus carrying the information provision control apparatus which concerns on Embodiment 1 of this invention. It is a block diagram of the information provision control apparatus which concerns on Embodiment 1 of this invention. 3A and 3B are diagrams showing an example of the hardware configuration of the information provision control apparatus according to Embodiment 1 of the present invention. It is a flowchart explaining the operation | movement of the question response process in the information provision control apparatus which concerns on Embodiment 1 of this invention. 6 is a diagram illustrating an example of information stored in a semantic analysis table in Embodiment 1. FIG. In Embodiment 1, it is a figure explaining an example of the information stored in the object table. FIG. 7A is an example of a response sentence template when the question symbol is “YES_NO {next_cross = RIGHT}” in the first exemplary embodiment. FIG. 7B is an example of the response symbol template “WHICH { obj = next_cross} ”is an example of a response sentence template. In Embodiment 1, it is a figure explaining an example of the information which a response sentence preparation part memorize | stores in a log | history memory | storage part. It is a flowchart explaining the operation | movement of the information provision process in the information provision control apparatus which concerns on Embodiment 1 of this invention. 6 is a flowchart illustrating an operation of understanding level determination processing by a question determination unit in the first embodiment. In Embodiment 1, it is a figure explaining an example of a certainty factor estimation table. FIG. 12A is a diagram illustrating an example of an output timing table when the level of detail is “high”, and FIG. 12B is a diagram illustrating an example of the output timing table when the level of detail is “low”. It is a block diagram of the equipment inspection work assistance apparatus carrying the information provision control measure concerning this Embodiment 1. FIG. It is a block diagram of the conversation robot control apparatus carrying the information provision control apparatus which concerns on this Embodiment 1. FIG. It is a figure explaining an example of the cooking procedure which the procedure data preparation part of a conversation robot control apparatus searches. 10 is a flowchart illustrating an operation of understanding level determination processing by a question determination unit in the second embodiment. In Embodiment 2, it is a flowchart explaining the operation | movement in which a question determination part calculates a question answer coincidence. In this Embodiment 2, it is a figure explaining an example of the relationship between the said understanding degree, a question answer coincidence degree, and a certainty degree about the understanding degree which a question determination part determines. 10 is a flowchart illustrating an operation of understanding level determination processing by a question determination unit in the second embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
In the following description, the case where the information provision control apparatus 100 according to Embodiment 1 of the present invention is mounted on the car navigation apparatus 600 will be described as an example. That is, the car navigation apparatus 600 is an information providing apparatus that provides information to a driver or the like that is a user based on the control performed by the information provision control apparatus 100.

FIG. 1 is a configuration diagram of a car navigation apparatus 600 equipped with an information provision control apparatus 100 according to Embodiment 1 of the present invention.
As shown in FIG. 1, the car navigation device 600 accepts, for example, a route search instruction input to the input device 700 by a driver or the like from the input device 700 and accepts it under the control of the information provision control device 100. The output device 800 outputs information related to the guidance route according to the route search instruction.
The input device 700 is, for example, a voice input device including a microphone or a touch panel.
The output device 800 is a display device such as a display, or an audio output device such as a speaker.

The car navigation device 600 includes a reception unit 61, a position detection unit 62, a guidance data creation unit 63, a guidance control unit 64, and a data storage unit 65.
The accepting unit 61 accepts, for example, a route search instruction or the like input to the input device 700 by a driver or the like from the input device 700.
The position detection unit 62 includes, for example, a speed sensor, a gyro sensor, a GPS (Global Positioning System) receiver, and the like, and detects the current position, speed, direction, current time, and the like of the vehicle. The position detector 62 may be configured by combining two or more of these sensors and receivers.
The position detection unit 62 outputs information such as the current position, speed, direction, and current time of the vehicle detected by the position detection unit 62 to the guidance data creation unit 63.

The guidance data creation unit 63 uses the route search instruction received by the reception unit 61, information stored in the data storage unit 65, information such as the current position, speed, direction, and current time of the vehicle output from the position detection unit 62. Based on this, for example, a route to the destination is searched, and guidance data for guiding the searched route is created. The guidance data creation unit 63 outputs the created guidance data to the guidance control unit 64. In addition, when control information is output from the information provision control device 100, the guidance data creation unit 63 creates guidance data according to the control information. Here, the control information includes an output sentence or information indicating output timing.
The guidance control unit 64 converts the guidance data created by the guidance data creation unit 63 into, for example, voice data and causes the output device 800 to output it. Here, the guidance control unit 64 converts the guidance data into voice data and outputs it. However, the present invention is not limited to this, and for example, the guidance control unit 64 converts the guidance data into video data and outputs it. You may make it make it.

  The data storage unit 65 stores map data, various data used for route search, and the like. The data storage unit 65 includes, for example, an HDD (Hard Disk Drive), a DVD (Digital Versatile Disc), a memory, and the like.

  Here, as shown in FIG. 1, it is assumed that the information provision control device 100 is mounted on the car navigation device 600. However, the present invention is not limited to this, and the information provision control device 100 includes the car navigation device 600. It may be provided outside and control the creation of guide data in the car navigation device 600 via a communication network such as the Internet.

FIG. 2 is a configuration diagram of the information provision control apparatus 100 according to Embodiment 1 of the present invention.
As shown in FIG. 2, the information provision control device 100 includes an input reception unit 1, a question answering unit 2, an external information acquisition unit 3, an output control unit 4, and a provision information creation control unit 5.
The input receiving unit 1 receives input information from a driver from the input device 700. In the first embodiment, the driver uses the input device 700 to make a question about a guidance route or the like guided by the car navigation device 600. For example, it is assumed that the input device 700 is a voice input device provided with a microphone or the like, and the driver makes a question by voice. The input receiving unit 1 receives a question from a driver as voice data. Then, the input receiving unit 1 converts the received voice data into text and outputs it to the meaning understanding unit 21 of the question answering unit 2.
The input accepting unit 1, for example, chapter 7 (pages 134 to 148) and chapter 8 of “Digital Voice Processing” (Tokai University Press, September 25, 1985) for voices received from the input device 700. Speech recognition is performed using a known technique as described in (pages 149 to 192).

The question answering unit 2 analyzes the meaning of the question from the driver, obtains response information for the question and creates a response sentence, and the response sentence includes the question from the driver, the answer information for the question, A question response process is performed in which the history is stored in the history storage unit 25 as a history of questions from the driver.
The question answering unit 2 includes a meaning understanding unit 21, a response sentence creating unit 22, a question analysis knowledge storage unit 23, a response sentence template 24, and a history storage unit 25. The question analysis knowledge storage unit 23 further includes a semantic analysis table 231 and a target table 232.
The meaning understanding unit 21 analyzes the meaning of the question from the driver acquired as text from the input reception unit 1, specifies the question target that is the target of the inquiry, and inquires the external information acquisition unit 3 about the question target.
Specifically, the semantic understanding unit 21 refers to the semantic analysis table 231 of the question analysis knowledge storage unit 23 and determines whether there is an utterance pattern in which the text acquired from the input receiving unit 1 matches the character string. Then, when there is an utterance pattern in which the text and the character string match, the meaning understanding unit 21 acquires a question symbol corresponding to the utterance pattern.
Furthermore, the semantic understanding unit 21 collates the question symbol with the target table 232 of the question analysis knowledge storage unit 23, and acquires the question target corresponding to the question symbol from the target table 232. Then, the meaning understanding unit 21 outputs the acquired question object to the external information acquisition unit 3.
The meaning understanding unit 21 outputs the acquired question symbol to the response sentence creating unit 22 together with the utterance pattern.
Details of the semantic analysis table 231 and the target table 232 will be described later.
The response sentence creation unit 22 creates a response sentence based on the question symbol acquired from the meaning understanding unit 21 and the answer information acquired from the external information acquisition unit 3. Here, the response sentence creation unit 22 identifies the response sentence by referring to the response sentence template 24 based on the question symbol acquired from the semantic understanding unit 21 and the answer information acquired from the external information acquisition unit 3. Create a response sentence. The response sentence creation unit 22 outputs the created response sentence to the output control unit 4.
Further, the response sentence creation unit 22 stores the created response sentence in the history storage unit 25 in association with the time, the question from the driver, the question symbol, and the answer information acquired from the external information acquisition unit 3. . The question from the driver is a question about a guide route or the like by the driver, which is received by the input receiving unit 1 from the input device 700 and converted into text.
The question analysis knowledge storage unit 23 stores a semantic analysis table 231 and a target table 232.
The semantic analysis table 231 is a table in which utterance patterns and question symbols are stored in association with each other. The utterance pattern represents an assumed question as a character string. The question symbol is a preset expression representing the meaning of the question.
The target table 232 is a table in which question symbols and question targets are stored in association with each other.
The history storage unit 25 accepts the response sentence created by the response sentence creation unit 22 from the driver in association with the time, the question from the driver, the question symbol, and the answer information output from the external information acquisition unit 3. Remember the history of questions.

The external information acquisition unit 3 acquires the question target output from the meaning understanding unit 21, makes an inquiry about the question target, and acquires the answer information of the question target. The external information acquisition unit 3 outputs the acquired answer information for the question target to the response sentence creation unit 22 of the question response unit 2. The external information acquisition unit 3 may acquire response information from a local network, for example, or may acquire general information about a route or an object as response information from the Internet or the like.
In addition, when there is an inquiry about information necessary for creating an output sentence from the provision information creation control unit 5, the external information acquisition unit 3 obtains information according to the inquiry and outputs it to the provision information creation control unit 5. .

The provided information creation control unit 5 refers to the history storage unit 25, estimates the certainty of the driver's guide route, etc. using the modality of the question from the driver for the guide route, etc., guided by the car navigation device 600, Using this certainty as the degree of understanding of the driver's guidance route, etc., based on the degree of understanding, the level of detail and output timing of the output sentence to be provided on the guidance route are determined, and control information for the guidance data creation unit 63 is created The information control process is performed.
The modality generally represents the speaker's judgment and feeling for the content being spoken. Here, modalities such as judgment and feeling of the driver are determined based on the question from the driver.
In the first embodiment, the degree of understanding means how much the driver understands the guidance route and the like.
The provided information creation control unit 5 includes a detail level determination unit 51, an output sentence creation unit 52, and an output timing table 53. The detail level determination unit 51 further includes a question determination unit 511 and a detail level determination unit 512.
Based on the information stored in the history storage unit 25 of the question answering unit 2, the question determination unit 511 estimates the certainty factor for the driver's guidance route and the like using the modality of the question from the driver, and the certainty factor The driver's level of understanding is determined from The question determination unit 511 outputs the determined understanding level of the driver to the detail level determination unit 512.
The detail level determination unit 512 determines the detail level of the output sentence based on the driver's understanding level determined by the question determination unit 511. The detail level determination unit 512 outputs the determined level of detail to the output sentence creation unit 52. The content of the output sentence is the content that the information provision control device 100 causes the car navigation device 600 to output from the output device 800 as guide route information.

The output sentence creation unit 52 refers to the output timing table 53, acquires the output sentence template corresponding to the degree of detail determined by the detail degree determination unit 512, and the output timing of the output sentence based on the output sentence template, Based on the acquired information, the external information acquisition unit 3 is inquired about the output sentence timing and information necessary for creating the output sentence. When the output sentence timing is reached, the external information acquisition unit 3 needs to create the output sentence. Information is obtained.
The output timing table 53 is a table in which an output sentence template and a timing for outputting an output sentence based on the output sentence template are stored in association with each other.

  The output control unit 4 converts the response text output by the response text creation unit 22 into voice data and causes the output device 800 to output the voice data. Further, the output control unit 4 outputs the information of the output sentence output from the output sentence creation unit 52 to the guidance data creation unit 63 as control information.

  Here, as shown in FIG. 2, the question analysis knowledge storage unit 23, the response sentence template 24, and the history storage unit 25 are provided in the question response unit 2. The knowledge storage unit 23, the response sentence template 24, and the history storage unit 25 are stored in, for example, a server external to the information provision control device 100, and the meaning understanding unit 21 accesses the server via a network or the like, The analysis knowledge storage unit 23, the response sentence template 24, or the history storage unit 25 may be referred to.

  Here, as shown in FIG. 2, the output timing table 53 is provided in the provision information creation control unit 5. However, the present invention is not limited to this, and the output timing table 53 is, for example, the information provision control device 100. The output sentence creation unit 52 may be stored in an external server and may access the server via a network or the like to refer to the output timing table 53.

3A and 3B are diagrams showing an example of a hardware configuration of the information provision control apparatus 100 according to Embodiment 1 of the present invention.
In Embodiment 1 of this invention, the input reception part 1, the meaning understanding part 21, the response sentence preparation part 22, the external information acquisition part 3, the output control part 4, the detail degree determination part 51, and an output sentence Each function of the creation unit 52 is realized by the processing circuit 301. That is, the information provision control apparatus 100 includes a processing circuit 301 for controlling the creation of guidance data by the guidance data creation unit 63 based on the received voice input content.
The processing circuit 301 may be dedicated hardware as shown in FIG. 3A or a CPU (Central Processing Unit) 306 that executes a program stored in the memory 305 as shown in FIG. 3B.

  When the processing circuit 301 is dedicated hardware, the processing circuit 301 includes, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), and an FPGA (Field-Programmable). Gate Array) or a combination thereof.

  When the processing circuit 301 is the CPU 306, the input reception unit 1, the semantic understanding unit 21, the response sentence creation unit 22, the external information acquisition unit 3, the output control unit 4, the detail level determination unit 51, and the output sentence creation Each function of the unit 52 is realized by software, firmware, or a combination of software and firmware. That is, the input reception unit 1, the semantic understanding unit 21, the response sentence creation unit 22, the external information acquisition unit 3, the output control unit 4, the detail level determination unit 51, and the output sentence creation unit 52 are HDD ( (Hard Disk Drive) 302, CPU 306 that executes a program stored in the memory 305, etc., and a processing circuit such as a system LSI (Large-Scale Integration). The programs stored in the HDD 302, the memory 305, and the like include the input receiving unit 1, the semantic understanding unit 21, the response sentence creating unit 22, the external information acquisition unit 3, the output control unit 4, and the level of detail determination unit. 51 and the procedure and method of the output sentence creation unit 52 can be said to be executed by a computer. Here, the memory 305 is, for example, a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory Memory, an EEPROM (Electrically Erasable Memory), or the like. Or a volatile semiconductor memory, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD (Digital Versatile Disc), or the like.

In addition, about each function of the input reception part 1, the meaning understanding part 21, the response sentence preparation part 22, the external information acquisition part 3, the output control part 4, the detail degree determination part 51, and the output sentence preparation part 52 Alternatively, a part may be realized by dedicated hardware and a part may be realized by software or firmware. For example, the function of the input receiving unit 1 is realized by a processing circuit 301 as dedicated hardware, a meaning understanding unit 21, a response sentence creation unit 22, an external information acquisition unit 3, an output control unit 4, Functions of the detail level determination unit 51 and the output sentence creation unit 52 can be realized by the processing circuit reading and executing the program stored in the memory 305.
The question analysis knowledge storage unit 23, the response sentence template 24, the history storage unit 25, and the output timing table 53 use, for example, the HDD 302. This is merely an example, and the question analysis knowledge storage unit 23, the response sentence template 24, the history storage unit 25, and the output timing table 53 may be configured by a DVD, a memory 305, and the like. .
In addition, the information provision control device 100 includes an input interface device 303 and an output interface device 304 that communicate with external devices such as the input device 700 and the car navigation device 600.

The operation will be described.
The information provision control apparatus 100 according to the first embodiment of the present invention is broadly divided into question response processing for receiving a question from a driver and creating a response to the question, and an understanding level determined based on the question from the driver. Based on the above, an information providing process for creating control information for controlling the creation of guide data in the car navigation device 600 is performed.
First, an operation of a question response process for receiving a question from a driver and creating a response sentence for the question will be described.

FIG. 4 is a flowchart for explaining the operation of the question answering process in the information provision control apparatus 100 according to Embodiment 1 of the present invention.
Note that the question answering process described in FIG. 4 is based on the premise that the car navigation device 600 is in a state of providing guidance route information to a driver, for example. Specifically, for example, the driver gives a route search instruction using the input device 700, and the car navigation device 600 provides guidance as guide route information for guiding a route to the destination based on the search result. Data is created, the guidance data is converted into voice data, and output to the output device 800.

  Input reception unit 1 stands by until a question about a route from the driver is received from input device 700 (in the case of “NO” in step ST401). In the state where the guidance of the route by the car navigation device 600 has been started, the driver uses the voice from the input device 700 for the route being guided, for example, “Is this right?” Or “Is this straight?” You can ask questions freely. In this way, the input receiving unit 1 determines whether or not the driver has asked about the route.

  When the input reception unit 1 receives a question from the driver (in the case of “YES” in step ST401), the input reception unit 1 converts the received voice data into text and outputs it to the meaning understanding unit 21. For example, here, if the driver makes a question about the route, “Is this right?”, The input reception unit 1 uses the voice data “Is this right?” And the text “Is this right?” And output to the meaning understanding unit 21.

The meaning understanding unit 21 refers to the semantic analysis table 231 of the question analysis knowledge storage unit 23 and determines whether or not there is an utterance pattern represented by a character string that matches the character string indicated by the text acquired from the input reception unit 1. Judgment is made (step ST402).
In step ST402, when there is no utterance pattern that matches the character string (in the case of “NO” in step ST402), the process is terminated.
In step ST402, when there is an utterance pattern that matches the character string (in the case of “YES” in step ST402), the meaning understanding unit 21 acquires a question symbol corresponding to the utterance pattern that matches the character string (step ST403). . The meaning understanding unit 21 outputs the acquired question symbol to the response sentence creation unit 22.

Here, FIG. 5 is a diagram for explaining an example of information stored in the semantic analysis table 231 in the first embodiment.
As shown in FIG. 5, the semantic analysis table 231 stores utterance patterns and question symbols in association with each other.
The question symbol is determined in advance, and in the first embodiment, for example, as shown in FIG. 5, it is assumed that it is expressed as “YES_NO {next_cross = RIGHT}”.
The first half of the question symbol indicates the type of question, and the second half of the question symbol indicates the details of the question content. For example, if the question symbol is “YES_NO” with “YES_NO {next_cross = RIGHT}”, “YES_NO” is the type of question that can be answered with a positive expression such as “Yes” or a negative expression such as “No”. Indicates. Further, “{next_cross = RIGHT}” indicates the details of the question content that the question is that the next intersection is on the right.
The type of question that can be answered with an affirmative expression such as “Yes” or a negative expression such as “No”, such as “YES_NO”, is generally called a true / false question sentence. Here, the question in the form of a true / false question is called the YES_NO type. Other than that, for example, “How many meters is right?”, “Which is next?”, “Yes”, “ The types of questions that cannot be answered with “No” are open types.
Regarding the question symbol, the content described with reference to FIG. 5 is an example, and the expression format of the question symbol is not limited to this.

  In step ST401, the semantic understanding unit 21 acquires, for example, the text “This is right” and the semantic analysis table 231 stores the contents of FIG. Since there is an utterance pattern in which the character string matches “here is right”, the meaning understanding unit 21 acquires the question symbol “YES_NO {next_cross = RIGHT” corresponding to “here is right” from the semantic analysis table. (Steps ST402 and 403).

  The meaning understanding unit 21 collates the question symbol acquired in step ST403 with the target table 232 of the question analysis knowledge storage unit 23, and acquires a question target corresponding to the question symbol from the target table 232 (step ST404). The meaning understanding unit 21 outputs the acquired question object to the external information acquisition unit 3.

Here, FIG. 6 is a diagram for explaining an example of information stored in the target table 232 in the first embodiment.
As shown in FIG. 6, in the target table 232, question symbols and question targets are stored in association with each other. The question symbol has the same expression as the question symbol stored in the semantic analysis table 231.

In the first embodiment, the question target is information about what to inquire about the external information acquisition unit 3. The question target is determined in advance for each question symbol, and is stored in the target table 232 in association with the question symbol.
For example, if the content of the target table 232 is the content shown in FIG. 6, the meaning understanding unit 21 determines the question target “next intersection” corresponding to the question symbol “YES_NO {next_cross = RIGHT}” acquired in step ST403. Get the direction. Then, the meaning understanding unit 21 outputs the question target “the course direction of the next intersection” to the external information acquisition unit 3.

The external information acquisition unit 3 acquires the question target output from the semantic understanding unit 21, makes an inquiry about the question target, and acquires the answer information of the question target (step ST405). Specifically, for example, when acquiring “the direction of the next intersection” as a question from the meaning understanding unit 21, the external information acquisition unit 3 inquires and acquires the guidance route information and the vehicle position information, The course direction of the intersection closest to the vehicle position is acquired as answer information for the question target. The external information acquisition unit 3 may acquire the guide route information from the guide data creation unit 63, for example, and may acquire the vehicle position information from the position detection unit 62. Here, as an example, the external information acquisition unit 3 inquires various information from the car navigation device 600 and obtains response information. However, the present invention is not limited to this, and for example, the external information acquisition unit 3 acquires the response information from the local network. Alternatively, general information on a route or an object may be acquired as answer information from the Internet or the like.
Further, for example, in the first embodiment, the course direction is expressed as RIGHT, STRAIGHT, LEFT, etc. In this step ST405, the external information acquisition unit 3 confirms that the traveling direction of the next intersection is straight ahead. It is assumed that “STRAIGHT” shown is acquired as answer information.
The external information acquisition unit 3 outputs the acquired answer information to the response sentence creation unit 22.

  In the first embodiment, since the information provision control device 100 is mounted on the car navigation device 600, as described above, the external information acquisition unit 3 may be a driver such as a direction of an intersection route. However, this is only an example, and the external information acquisition unit 3 acquires response information corresponding to the question target. For example, if the information provision control device 100 is mounted on a work device that performs maintenance and inspection work, and the next inspection item is acquired as a question target, the external information acquisition unit 3 is a place to be inspected next. And information on the location is acquired as answer information.

The response sentence creation unit 22 creates a response sentence based on the question symbol output by the meaning understanding unit 21 in step ST403 and the answer information output by the external information acquisition unit 3 in step ST405 (step ST406). Specifically, for example, the question symbol output by the meaning understanding unit 21 in step ST403 and the answer information output by the external information acquisition unit 3 in step ST405 are acquired, and the response sentence is specified with reference to the response sentence template 24. To create a response sentence.
The response sentence creation unit 22 outputs the acquired response sentence to the output control unit 4.

Here, FIG. 7 is a diagram for explaining an example of the response sentence template 24 in the first embodiment, and FIG. 7A is a response sentence template 24 when the question symbol is “YES_NO {next_cross = RIGHT}”. FIG. 7B is an example of the response sentence template 24 when the question symbol is “WHICH {obj = next_cross}”.
As shown in FIGS. 7A and 7B, in the response statement template 24, a response statement is defined for each question symbol according to the information of the inquiry result. In the inquiry result information, answer information assumed to be acquired from the external information acquisition unit 3 is set.
Here, in step ST403, the question symbol “YES_NO {next_cross = RIGHT}” is output, and in step ST405, the answer information “STRAIGHT” is output. With reference to the response sentence template 24, a response sentence “No. Go straight” is acquired.
In the first embodiment, the response sentence template 24 is defined in advance, and the response sentence creating unit 22 creates the response sentence acquired from the response sentence template 24 as a response sentence to be output to the output control unit 4. However, the present invention is not limited to this, and the response sentence creation unit 22 may create a response sentence by other methods.

The response sentence creation unit 22 stores the response sentence acquired in step ST406 in the history storage unit 25 (step ST407). At this time, the response sentence creation unit 22 creates the response sentence as time information, the text acquired by the meaning understanding unit 21 from the input reception unit 1 in step ST401, that is, the question from the driver, and the meaning understanding unit in step ST403. The question symbol 21 acquired is associated with the answer information output from the external information acquisition unit 3 in step ST405 and stored in the history storage unit 25 (see FIG. 8).
The time here is, for example, the mechanical current time in a clock (not shown) held in the information provision control device 100. This is merely an example, and the time may be, for example, the time when the input receiving unit 1 receives a question text from the input device 700, or the response sentence creating unit 22 detected by the position detection unit 62 It is also possible to acquire the current time of the timing at which the time is acquired, and it is possible to set a reference for which time is to be stored in the history storage unit 25 in advance, and information on the time according to the reference That's fine.
By the operation of step ST407, the response sentence to the question from the driver is associated with the question from the driver, the answer information obtained by inquiring the question, and the like, and accumulated in the history storage unit 25. That is, the history of the question from the driver received by the input receiving unit 1 is accumulated in the history storage unit 25.

The response sentence creation unit 22 outputs the response sentence acquired in step ST406 to the output control unit 4, and the output control unit 4 creates speech data from the response sentence by speech synthesis processing, and outputs the speech from the output device 800. (Step ST408). Similar to the speech recognition process performed by the input receiving unit 1, the speech synthesis process performed by the output control unit 4 may be performed using a known technique.
As a result, the voice “No. Go straight” is output from the output device 800, and the driver obtains a response to the question “Is this right?”.

In the above description, as an example, it is assumed that the question from the driver is “this is right” and the question symbol type of the question symbol obtained for the question is YES_NO type. Even if the question type of the question symbol is an open type, the same operation is performed.
For example, suppose the driver asks "Which is next?" In this case, the semantic understanding unit 21 acquires a question symbol “WHICH {obj = next_cross}”, and acquires “a course direction of the next intersection” as a question target corresponding to the question symbol (steps ST403 and 404). .
Then, if the external information acquisition unit 3 outputs the response information “STRAIGHT” with respect to “the direction of the next intersection” (step ST405), the response sentence creation unit 22 is as shown in FIG. 7B. Referring to the response sentence template 24, a response sentence “Next is straight ahead” is acquired (step ST406). Then, the response sentence creating unit 22 outputs a response sentence “Next is straight ahead” to the output control unit 4 and associates the response sentence with the time, the question from the driver, the question symbol, and the answer information. And stored in the history storage unit 25 (see step ST407, FIG. 8).
The output control unit 4 creates voice data “Next is straight ahead” and outputs it to the output device 800 (step ST408).
As described above, the information provision control device 100 can realize the question answering function, and the driver can obtain a response corresponding to the question about the route.

Next, the operation of the information providing process for creating control information for controlling the creation of guide data in the car navigation device 600 based on the degree of understanding determined based on the question from the driver will be described.
As described above, the degree of understanding is the degree to which the driver understands the guide route and the like.
Further, the question answering process described in FIG. 4 and the information providing process can be executed in parallel. However, when the information providing process is performed, the question answering process described in FIG. It is assumed that the storage unit 25 stores a history of questions from the driver.
In addition, when the information provision processing is performed, the information provision control device 100 creates guidance data for the guidance data creation unit 63 of the car navigation device 600 based on control information from the information provision control device 100 thereafter. A guidance data creation control start instruction for instructing to do so is transmitted. When receiving the guidance data creation control start instruction, the guidance data creation unit 63 receives guidance based on the control information transmitted from the information provision control device 100 until receiving a guidance data creation control end instruction from the information provision control device 100. Try to create data.

FIG. 9 is a flowchart for explaining the operation of information provision processing in the information provision control apparatus 100 according to Embodiment 1 of the present invention.
The question determination unit 511 of the detail level determination unit 51 performs an understanding level determination process to determine the driver's understanding level (step ST901). Specifically, the question determination unit 511 determines an understanding level that indicates how much the driver understands the guide route. In the first embodiment, the degree of understanding is binary of “high” or “low”.
The question determination unit 511 outputs the determined degree of understanding of the driver to the detail level determination unit 512 of the detail level determination unit 51.

FIG. 10 is a flowchart for explaining the operation of the understanding level determination process by the question determination unit 511 in the first embodiment.
The understanding level determination process in step ST901 in FIG. 9 will be described in detail with reference to FIG.
First, the question determination unit 511 refers to the history storage unit 25 and determines whether or not a question response process has been performed while traveling on the current route (step ST1001). Note that traveling on the current route means that the host vehicle is traveling on the route on which the car navigation device 600 is currently guiding.

  As to whether or not the question answering process is performed while traveling on the current route, for example, a flag may be used as appropriate. Specifically, when the car navigation device 600 receives a route search instruction, the guidance flag held in the car navigation device 600 that can be referred to by the information provision control device 100 is set to 1, and the question answering process is performed. When the response sentence creation unit 22 stores the history of the question in the history storage unit 25 (step ST407 in FIG. 4), the information on the guidance flag is also attached and stored (guidance flag in FIG. 8). Is omitted). In step ST1001, the question determination unit 511 determines whether the question answering process is performed while traveling on the current route depending on whether there is a question with the guidance flag = 1 attached. Good. In this case, when the driver ends the current route guidance by, for example, inputting a guidance end instruction from the input device 700 or changing the destination, the reception unit 61 instructs the guidance end instruction. , Initialize the internally held guidance flag (= 0), and output information indicating that the guidance end instruction or the instruction to change the destination is accepted to the response sentence creation unit 22; The response sentence creation unit 22 updates all the guidance flags on the history storage unit 25 to 0.

  Note that this is merely an example. For example, the time when a route search instruction is received from the driver is stored in the car navigation device 600, and the question determination unit 511 is stored in the history storage unit 25. You may make it determine the log | history of the question whose time is after the time when the said route search instruction | indication was received as the question response performed during driving | running | working on the present route. As described above, any method may be adopted as long as the question determination unit 511 can determine whether or not the question answering process has been performed while traveling on the current route.

  In step ST1001, when the question determination unit 511 determines that no question answering process is performed while traveling on the current route, that is, the history storage unit 25 stores the current route while traveling. If there is no history of questions (in the case of “NO” in step ST1001), the question determination unit 511 sets the understanding level to “high” (step ST1004), and sends information on the understanding level “high” to the detail level determination unit 512. Output and finish the process.

  In Step ST1001, when the question determination unit 511 determines that the question answering process has been performed while traveling on the current route, that is, the history storage unit 25 stores the question stored while traveling on the current route. When there is a history (in the case of “YES” in step ST1001), the question determination unit 511 stores the latest among the history of questions stored while traveling on the current route stored in the history storage unit 25. For the history, the driver's confidence level for the guidance route is estimated, and it is determined whether the confidence level is high or low (step ST1002). In step ST1102, the question determination unit 511 uses, for example, whether the degree of confirmation of the route is high or the degree of doubt about the route is high as the modality of the question made by the driver. Estimate the degree.

Specifically, for example, the question determination unit 511 acquires the content of the question about the latest history among the history of questions stored in the history storage unit 25 and stored while traveling on the current route. Then, the certainty factor is estimated by referring to the certainty factor estimation table set in advance using the question modality shown in FIG. Note that the certainty factor estimation table illustrated in FIG. 11 is an example, and the certainty factor estimation table may be set in advance by associating the question with the certainty factor.
For example, if the question is in a format such as “Next is xx”, it can be said that the degree of confidence in the route is high and the driver is highly certain.
On the other hand, for example, if the question is in a format such as “Next is xx kana”, the degree of doubt is high, so the driver's certainty is low.
That is, here, using the modality viewed from the question format, the question determination unit 511 estimates a certainty factor indicating how confident the driver is about the guidance route.

  Note that this is an example, and the question determination unit 511 may estimate the certainty factor by another method using a modality. For example, the question determination unit 511 uses the ending intonation information, and when the ending intonation is increased, the question determination unit 511 uses the fact that the degree of doubt is high and creates a certainty factor estimation table. Also good. As the ending intonation information, for example, the text “?” May be used to indicate a case where the ending is raised. For example, when the input receiving unit 1 receives a question from the driver and converts voice data into text (see step ST401 in FIG. 4), the text “?” Is given when converting voice data with an end. Then, the text is output to the semantic understanding unit 21, and the text to which the “?” Is added is stored in the history storage unit 25 as the content of the question. The question determination unit 511 then adds the intonation information “?” At the end of the word. It is sufficient to refer to the certainty factor estimation table including whether or not there is any.

In step ST1002, when the question determination unit 511 determines that the certainty factor is low (in the case of “YES” in step ST1002), the question determination unit 511 sets the understanding level to “low” (step ST1003) and the understanding level “ The information “low” is output to the detail level determination unit 512, and the process ends. In the first embodiment, the question determination unit 511 determines the degree of understanding using the certainty factor, and when the certainty factor is low, sets the comprehension level to “low”, and when the certainty factor is high, the degree of understanding is “high”. Shall be. In other words, the question determination unit 511 determines the degree of understanding using the certainty degree estimated using the modality as the degree of understanding.
For example, if the question is in a format such as “Next is xx?”, It can be estimated that the driver has a question about the guided route and the certainty level is low. Therefore, the question determination unit 511 sets the understanding level to “low” based on the result of estimating that the driver's certainty level is low.

  In step ST1002, when the question determination unit 511 determines that the certainty factor is high (in the case of “NO” in step ST1002), the question determination unit 511 sets the understanding level to “high” (step ST1004) and the understanding level “ The information “high” is output to the detail level determination unit 512, and the process ends. For example, if the question is in a format such as “Next is xx”, the driver says that the route of the vehicle is correct with respect to the guided route, that is, the driver can travel on the guided route. It can be presumed that there is a high probability that the person has certainty and only confirms just in case. Therefore, here, the question determination unit 511 sets the understanding level to “high” based on the result of estimating that the driver's certainty level is high.

As described above, the question determination unit 511 determines how much the driver is confident about the route based on the history of whether the driver has received a question about the route while traveling on the current route in the understanding level determination process. The certainty level indicating the degree of whether or not it is estimated is estimated, and the understanding level is determined based on the certainty level.
Here, in step ST1002, the question determination unit 511 uses the latest history among the history of questions stored in the history storage unit 25 and stored on the current route. However, the present invention is not limited to this, and the question determination unit 511 may determine the certainty factor using the past history stored in the history storage unit 25. Moreover, you may make it the question determination part 511 not use about the log | history which a fixed time passed.

Returning to the flowchart of FIG.
The level of detail determination unit 512 acquires information on the level of understanding output by the question determination unit 511 in step ST901, and determines the level of detail of the output sentence to be output to the output device 800 in the car navigation device 600 (step ST902). Here, for example, the detail level determination unit 512 determines the detail level “low” when the level of understanding is “high”, and determines the level of detail “high” when the level of understanding is “low”. And Here, the output sentence to be output to the output device 800 in the car navigation device 600 refers to the content of guidance data for route guidance.

The output sentence creation unit 52 refers to the output timing table 53, and acquires the output sentence template corresponding to the detail level output by the detail level determination unit 512 in step ST902, and the output timing of the output sentence based on the output sentence template. (Step ST903).
Here, FIG. 12 is a diagram illustrating an example of the output timing table 53 according to the first embodiment. FIG. 12A shows the output timing table 53 when the level of detail is “high”, and FIG. 12B shows the output timing table 53 when the level of detail is “low”.
In the output timing table 53, an output sentence template and a timing for outputting an output sentence based on the output sentence template are defined in association with each other. In the first embodiment, as shown in FIGS. 12A and 12B, it is assumed that output timing tables 53 corresponding to the cases of the degree of detail “high” and “low” are prepared.
The output sentence creation unit 52 outputs the information of the output timing table 53 acquired in step ST903, specifically, the output sentence template and the output timing information of the output sentence to the external information acquisition unit 3.

  The external information acquisition unit 3 outputs the output sentence from the guidance route information, the vehicle position information, and the map data based on the output timing of the output sentence acquired from the output sentence creation unit 52 in step ST903. It is determined whether or not (step ST904). For example, the external information acquisition unit 3 may acquire the guidance route information from the guidance data creation unit 63, may acquire the host vehicle position information from the position detection unit 62, and Data may be acquired from the data storage unit 65.

If it is determined in step ST904 that it is not time to output the output sentence (in the case of “NO” in step ST904), the processing in step ST904 is repeated.
When it is determined in step ST904 that it is the timing to output the output sentence (in the case of “YES” in step ST904), the external information acquisition unit 3 is based on the output sentence template associated with the output sentence output timing. Information necessary for creating the output sentence is acquired, and output to the output sentence creating unit 52 together with the output timing information (step ST905).

  Specifically, for example, it is assumed here that the detail level determination unit 512 determines the detail level “high”, and the external information acquisition unit 3 acquires the information shown in FIG. 12A from the output sentence creation unit 52. . Then, it is assumed that the external information acquisition unit 3 determines from the guidance route information, the own vehicle position information, and the map data that the own vehicle position is at a point of 1 km to the route change intersection. At this time, the external information acquisition unit 3 determines that it is time to output the output sentence (“YES” in step ST904), and the output sentence template “approximately 1 km ahead” associated with the output timing of 1 km to the course change intersection. The information necessary for the output sentence created based on “, ○ direction”, that is, the information on the direction to change the course is acquired and output to the output sentence creating unit 52 together with the output timing information.

In the output sentence template of the output timing table 53 as shown in FIGS. 12A and 12B, for example, “○” in “approx. 1 km ahead, ○ direction” has a specific direction such as “right”. A character or character string representing is entered. The external information acquisition unit 3 acquires information on the specific direction from the guide route information and the like, and outputs it to the output sentence creation unit 52.
In the output sentence template, for example, “$ Landmark $” at “Intersection with $ Landmark $ ahead” is a character or character representing a specific landmark such as “A Super”. A column enters.
As described above, the output sentence creation unit 52 inquires the external information acquisition unit 3 about information necessary for creating the output sentence, and the external information acquisition unit 3 obtains information corresponding to the inquiry and creates the output sentence. To the unit 52.

  If the degree of detail is determined to be “low”, as shown in FIG. 12B, “1 km to the route change intersection” is not defined as the timing for outputting the output sentence, so the external information acquisition unit 3 Even if it is determined that the vehicle is at a point of 1 km to the route change intersection, it is not determined that the output sentence is to be output.

The output sentence creation unit 52 creates an output sentence based on the information indicating the output timing output from the external information acquisition unit 3 and the information necessary for creation of the output sentence, and outputs the output sentence to the output control unit 4 (step) ST906). Specifically, for example, the output sentence creation unit 52 creates information indicating an output sentence “about 1 km ahead, rightward” and outputs the information to the output control unit 4.
The output control unit 4 transmits information indicating the output sentence output from the output sentence creation unit 52 to the guidance data creation unit 63 of the car navigation device 600 as control information.
In the guidance data creation unit 63, information indicating an output sentence acquired as control information from the output control unit 4 is used as guidance data, and the guidance data is output to the guidance control unit 64. The guidance control unit 64 causes the output device 800 to output the acquired guidance data, for example, as voice data. The guidance control unit 64 may convert the guidance data into voice data by a known voice synthesis process as described above. Here, the guidance control unit 64 converts the guidance data into sound and outputs it. However, the present invention is not limited to this, and it may be converted into video and output.

  Thereafter, the process returns to step ST904, and the subsequent processing is repeated. When the external information acquisition unit 3 determines that the output timing is in accordance with the level of detail, the output statement creation unit 52 displays information indicating the output statement according to the output statement template. The information indicating the generated output sentence is output to the car navigation device 600 via the output control unit 4, and the output sentence is converted into voice as guidance data and output to the output device 800.

  Here, after step ST906, the process returns to step ST904. However, the present invention is not limited to this, and the process may return to step ST901 to re-determine the degree of understanding based on the latest question response history.

  When the driver ends the current route guidance, for example, by inputting a guidance end instruction from the input device 700, the reception unit 61 of the car navigation device 600 receives the guidance end instruction, and receives the received guidance end instruction. Is output to the information provision control device 100, and the information provision control device 100 ends the information provision processing. At this time, the information provision control device 100 outputs a guidance data creation control end instruction to the guidance data creation unit 63 of the car navigation device 600.

  In the first embodiment, the output sentence creation unit 52 creates an output sentence based on the information indicating the output timing output from the external information acquisition unit 3 and the information necessary for creating the output sentence. The information indicating the created output sentence is output as control information to the guidance data creating unit 63 via the output control unit 4. However, the present invention is not limited to this, for example, the output sentence creating unit 52 may acquire external information. Information indicating the output timing output from the unit 3 and information necessary for creating an output sentence are output as control information to the guide data creating unit 63 via the output control unit 4, and the guide data creating unit 63 An output sentence, that is, guidance data may be created based on the control information.

As described above, according to the first embodiment, a question regarding information that can be provided by the car navigation device 600, for example, a question about a guidance route, is received from a driver who is a user of the car navigation device 600, and The user's level of understanding is determined from the certainty factor estimated using the modality, and the user is asked a question to change the detail level and output timing of the output sentence to be output thereafter based on the level of understanding. Therefore, it is possible to provide information such as route guidance with the guidance content according to the user's understanding level and the frequency according to the user's understanding level. As a result, for example, it is possible to provide detailed information to users with a low level of understanding without providing unnecessary information to users with a high level of understanding, and to provide information that is easy for the user to understand. can do.
In addition, in order to determine the user's level of understanding, in the prior art method of outputting a question to the user and obtaining the user's answer to the question, many variations of the question for the user are prepared. There is a problem that needs to be kept. On the other hand, in the first embodiment of the present invention, the degree of understanding of the user is determined based on a spontaneous question from the user. This not only reduces the annoyance for the user, but also eliminates the need for preparing questions for the user.
In addition, since the certainty factor is estimated using the modality that can be estimated from the format of the question from the user and the understanding level is determined from the certainty level, the understanding level can be determined by a relatively simple method. it can.
In addition, since the certainty factor is estimated using the modality of the question, it is possible to control information provision based on the understanding level in consideration of the subjectivity of the user.

In the first embodiment, it has been described that the driver inputs the question about the route by voice. However, the present invention is not limited to this, and the driver inputs the question about the route by inputting text using an input means such as a keyboard. You may make it do.
In the first embodiment, it has been described that guidance data and a response to a question are output as voice data from the output device 800. However, the present invention is not limited to this, and the output device 800 is a display or the like. The data and the response sentence may be displayed on the output device 800.

  In Embodiment 1, the semantic understanding unit 21 refers to the semantic analysis table 231 in step ST403 in FIG. 4 to acquire the question symbol. However, the present invention is not limited to this. For example, the semantic understanding unit 21 may describe the utterance pattern with a regular expression. Further, the semantic understanding unit 21 may learn a question symbol for a text in advance using a machine learning method, and specify the question symbol depending on which question symbol the received text is classified into. .

  In the first embodiment, the certainty level, the understanding level, and the level of detail are binary values of “high” and “low”, but the present invention is not limited to this. For example, more detailed certainty, comprehension or detail can be defined, and the output sentence can be controlled more finely by using the output timing table 53 corresponding thereto.

In the first embodiment, as an example, the information provision control device 100 is mounted on the car navigation device 600, and the information provision function controlled by the information provision control device 100 is specifically on a guided route. However, the present invention is not limited to this function.
For example, the information provision control apparatus 100 controls the information provision function in the equipment inspection work support apparatus installed in the facility, and the equipment maintenance of the equipment inspection work support apparatus from the equipment inspection worker who is a user, Work information in equipment inspection, for example, the equipment inspection worker, etc. accepts questions about where and what to check next, and responds to the question, and at the same time stores the question response history, in the stored history Based on this, it is possible to determine the degree of understanding of the work in the equipment inspection by the equipment inspection worker or the like, and to change the degree of detail of the work information to be output according to the degree of understanding.

FIG. 13 is a configuration diagram of an equipment inspection work support device 900 equipped with the information provision control device 100 according to the first embodiment.
As shown in FIG. 13, the facility inspection work support device 900 accepts, for example, a route search instruction to the facility inspection point input from the input device 700 by the facility inspection worker or the like from the input device 700 and receives information. Under the control of the providing control device 100, the output device 800 outputs information related to the route to the next facility inspection point according to the received route search instruction to the facility inspection point.
The equipment inspection work support device 900 is assumed to be a server installed in an equipment inspection office, for example.

The equipment inspection work support apparatus 900 includes a reception unit 71, a position detection unit 72, an inspection data creation unit 73, a guidance control unit 74, and a data storage unit 75.
The accepting unit 71 accepts, for example, a route search instruction or the like input to the input device 700 by an equipment inspection worker or the like from the input device 700.
The position detection unit 72 includes, for example, a speed sensor, a gyro sensor, a GPS (Global Positioning System) receiver, and the like, and detects the current position, speed, direction, current time, etc. of an equipment inspection worker or the like. The position detector 72 may be configured by combining two or more of these sensors and receivers.
The position detection unit 72 outputs information such as the current position, speed, direction, current time, etc. of the equipment inspection worker detected by the position detection unit 72 to the inspection data creation unit 73.

The inspection data creation unit 73 includes a route search instruction to the equipment inspection location received by the reception unit 71, information stored in the data storage unit 75, the current position and speed of the equipment inspection worker output by the position detection unit 72, Based on information such as direction and current time, for example, a route to the next equipment inspection point is searched, and inspection data for instructing the searched route or inspection contents is created. The inspection data creation unit 73 outputs the created guidance data to the guidance control unit 74. In addition, when the control information is output from the information provision control device 100, the inspection data creation unit 73 creates inspection data according to the control information. Here, the control information includes an output sentence or information indicating output timing.
The guidance control unit 74 converts the inspection data created by the inspection data creation unit 73 into, for example, voice data and causes the output device 800 to output it. Here, the guidance control unit 74 converts the inspection data into sound data and outputs it. However, the present invention is not limited to this. For example, the guidance control unit 74 converts the guidance data into video data and outputs it. You may make it make it.

  The data storage unit 75 stores map data, various data used for route search, and the like. The data storage unit 75 includes, for example, an HDD (Hard Disk Drive), a DVD (Digital Versatile Disc), a memory, and the like.

Here, as shown in FIG. 13, the equipment inspection work support device 900, the input device 700, and the output device 800 are different devices. The input device 700 is assumed to be a voice input device such as a microphone, and the output device 800 is assumed to be a voice output device such as a speaker, or a display device such as a display. These may be integrated with a mobile terminal such as a smartphone or a head-mounted display.
Here, the equipment inspection work support device 900 is assumed to be a server installed in the equipment inspection office. However, the present invention is not limited to this, and the equipment inspection work support device 900 includes an input device 700 and an output device 800. In addition, it may be integrated on a mobile terminal such as a smartphone.

The configuration and operation of the information provision control device 100 illustrated in FIG. 13 are the same as the configuration and operation of the information provision control device 100 described above as being mounted on the car navigation device 600.
In the above description, the information provision control device 100 is mounted on the car navigation device 600 and makes a determination based on a question response process for receiving a question from the driver and creating a response to the question and a question from the driver. Based on the degree of understanding, an information providing process for creating control information for controlling the creation of guidance data in the car navigation device 600 is performed. On the other hand, as shown in FIG. 13, when the information provision control device 100 is mounted on the equipment inspection work support device 900, the information provision control device 100 asks a question regarding, for example, a route from the equipment inspection worker to the equipment inspection point. Create control information that controls the creation of inspection data in the equipment inspection work support device 900 based on the question response process that accepts and creates a response to the question and the degree of understanding determined based on the questions from equipment inspection workers Information provision processing to be performed. In the information providing process, the information providing control device 100 specifically, for example, determines that the degree of understanding determined based on a question from an equipment inspection worker or the like is low, Detailed route inspection data or control information that controls the creation of inspection data that indicates the details of inspection in detail is created. In some cases, the information provision control apparatus 100 may create control information that controls creation of inspection data that explains a route to the next facility inspection point with a moving image.
Then, the inspection data creation unit 73 of the equipment inspection work support device 900 searches, for example, the route to the next equipment inspection point based on the control information from the information provision control device 100, or the searched route or the inspection content. Inspection data for instructing is generated and output to the guidance control unit 74. The guidance control unit 74 causes the output device 800 to output the inspection data. That is, based on the control of the equipment inspection work support device 900, the route from the output device 800 to the equipment inspection worker or the like is provided as work information to the next equipment inspection point.

  Alternatively, for example, the information provision control device 100 controls the information provision function in the portable terminal or the like in which an application teaching a cooking procedure is installed, or the conversation robot control device. , Accepting questions about what work should be done next, responding to the questions, and simultaneously storing the question response history, and based on the stored history, the cook's understanding of the cooking work procedure It is also possible to change the level of detail of the information relating to the cooking procedure to be output according to the degree of understanding.

FIG. 14 is a configuration diagram of a conversational robot control apparatus 1000 equipped with the information provision control apparatus 100 according to the first embodiment.
As shown in FIG. 14, the conversation robot control apparatus 1000 accepts, for example, a cooking procedure search instruction input from the input apparatus 700 by a cook or the like from the input apparatus 700 and performs control by the information provision control apparatus 100. Originally, the output device 800 outputs information related to a cooking procedure until a target dish is completed, a taste point, or the like according to the received cooking procedure search instruction or the like.
Note that the conversation robot control apparatus 1000 is assumed to be a server installed in a home gateway or a cloud, for example.

The conversation robot control apparatus 1000 includes a reception unit 81, a position detection unit 82, a procedure data creation unit 83, a guidance control unit 84, and a data storage unit 85.
The accepting unit 81 accepts, for example, a cooking procedure search instruction input from the input device 700 by the cook or the like.
The position detection unit 82 includes, for example, a speed sensor, a gyro sensor, a GPS (Global Positioning System) receiver, and the like, and detects the current position, speed, direction, current time, and the like of the cook. The position detection unit 82 may be configured by combining two or more of these sensors and receivers.
The position detection unit 82 outputs information such as the current position, speed, direction, current time, etc. of the cook or the like detected by the position detection unit 82 to the procedure data creation unit 83. In this way, the position detection unit 82 detects the current work stage in the entire cooking procedure as the “position” as well as the physical location of the cook.

The procedure data creation unit 83 includes a cooking procedure search instruction received by the reception unit 81, information stored in the data storage unit 85, the current position, speed, direction, and current time of the cook etc. output by the position detection unit 82. Based on such information, for example, a cooking procedure until a target dish is completed is searched, and procedure data for instructing the searched cooking procedure or cooking procedure content such as a taste point is created.
Here, FIG. 15 is a diagram illustrating an example of a cooking procedure searched by the procedure data creation unit 83 of the conversation robot control apparatus 1000.
For example, as shown in FIG. 15, even when the same dish is cooked, the cooking procedure searched by the procedure data creation unit 83 is different for amateurs and experts. Alternatively, the cooking procedure to be selected by the procedure data creation unit 83 differs between a person who has time and a person who wants to cook quickly.
The procedure data creation unit 83 creates procedure data for instructing an optimal cooking procedure according to the state and knowledge of the cook. The procedure data creation unit 83 stores a pattern of a cooking procedure to be searched in advance. For example, the procedure data creation unit 83 receives an instruction as to which cooking procedure is to be searched for from a cook or the like, and based on the received instruction. The cooking procedure may be searched and the procedure data created.

The procedure data creation unit 83 outputs the created procedure data to the guidance control unit 84. When the control information is output from the information provision control device 100, the procedure data creation unit 83 creates procedure data according to the control information. Here, the control information includes an output sentence, a picture or video of the cooking procedure, information indicating the output timing, and the like.
The guidance control unit 84 converts the procedure data created by the procedure data creation unit 83 into, for example, voice data and causes the output device 800 to output it. Here, the guidance control unit 84 converts the procedure data into audio data and outputs it. However, the present invention is not limited to this. For example, the guidance control unit 84 converts the procedure data into video data and outputs it. You may make it make it.

  The data storage unit 85 stores map data, various data used for route search, and the like. The data storage unit 85 is configured by, for example, an HDD (Hard Disk Drive), a DVD (Digital Versatile Disc), a memory, and the like.

Here, as shown in FIG. 14, the conversation robot control device 1000, the input device 700, and the output device 800 are separate devices. The input device 700 is assumed to be a voice input device such as a microphone, and the output device 800 is assumed to be a voice output device such as a speaker, or a display device such as a display. These may be integrated with a mobile terminal such as a smartphone.
Here, the conversation robot control apparatus 1000 is assumed to be a home gateway or a server installed in a cloud or the like. In addition, it may be integrated on a mobile terminal such as a smartphone.

The configuration and operation of the information provision control device 100 are the same as the configuration and operation of the information provision control device 100 described above as being mounted on the car navigation device 600.
In the above description, the information provision control device 100 is mounted on the car navigation device 600 and makes a determination based on a question response process for receiving a question from the driver and creating a response to the question and a question from the driver. Based on the degree of understanding, an information providing process for creating control information for controlling the creation of guidance data in the car navigation device 600 is performed. On the other hand, as shown in FIG. 14, when the information provision control device 100 is mounted on the conversation robot control device 1000, the information provision control device 100 receives, for example, a question about a cooking procedure from a cook or the like and sends a response to the question. Based on the question response process to be created and the degree of understanding determined based on the question from the cook or the like, an information providing process for creating control information for controlling the creation of procedure data in the conversation robot control apparatus 1000 is performed.
Then, the procedure data creation unit 83 of the conversation robot control device 1000 searches, for example, a procedure until the target dish is completed based on the control information from the information provision control device 100, or the searched procedure or tasting Procedure data for instructing points and the like is created and output to the guidance control unit 84. The guidance control unit 84 causes the output device 800 to output the procedure data. That is, based on the control of the conversation robot control apparatus 1000, the output apparatus 800 provides the cook or the like with the procedure for completing the target dish, the taste point, or the like as information related to the cooking procedure.

  Alternatively, for example, the information provision control apparatus 100 controls the information provision function in the work support apparatus that explains how to use the device, and what kind of operation is performed by pressing a certain button from the user, for example. The question answering history is received and at the same time the question answering history is memorized. Based on the memorized history, the user's degree of understanding of how to use the device is determined, and according to the degree of understanding. It is also possible to change the level of detail of the information related to the operation description to be output.

  Alternatively, for example, the information provision control device 100 controls an information provision function in a product guidance device that explains an exhibit or a product, etc. by interactive processing at an exhibition hall or a storefront. For example, a question about a product is received, a response to the question is made, and at the same time, the question response history is stored. Based on the stored history, an understanding level of the product such as a customer is determined, and the understanding level is determined. Accordingly, it is possible to change the level of detail of information about the product to be output.

  As described above, the information provision control apparatus 100 according to Embodiment 1 of the present invention can be widely applied as one that controls an information provision function in an information provision apparatus such as any device that provides information. The question received from the user may be a question regarding information that can be provided by the information providing apparatus. Further, the information providing device to be controlled by the information providing control device 100 may be a device that is fixedly installed or a device that is carried by the user.

Embodiment 2. FIG.
In the first embodiment, the degree of detail determination unit 51 estimates the user's certainty using the modality of the question from the user, determines the degree of understanding from the certainty, and based on the degree of understanding, The level of detail of the output sentence was determined.
However, it may not be said that the degree of understanding can always be determined appropriately only from the certainty using the modality of the question from the user.
For example, when the driver asks “Next is right” in front of an intersection to turn left, in the first embodiment, the detail level determination unit 51 can be said to be a form of a question that has a high degree of confirmation as a modality. Therefore, it is determined that the certainty factor is “high”, and the detail level of the information to be provided thereafter is set low. As a result, the level of detail of the route guidance information that is output thereafter is low, and the frequency with which the route guidance information is output decreases.
However, since it is an intersection that should actually turn left, the driver who asks "Next is right" is convinced that the guide route is misleading with a left turn as a right turn. In this case, it is preferable to provide the driver with more detailed information so that the driver can grasp the correct guide route.

  Therefore, in the second embodiment, the information included in the question from the user is compared with the information included in the answer information of the question target, and the degree of understanding of the user is also considered in consideration of the degree of coincidence. An embodiment for determination will be described.

The configuration of the information provision control apparatus 100 according to Embodiment 2 of the present invention is the same as that described with reference to FIG.
Also, the hardware configuration of the information provision control apparatus 100 is the same as the configuration described with reference to FIGS. 3A and 3B in the first embodiment, and thus a duplicate description is omitted.

  Hereinafter, also in the second embodiment, as in the first embodiment, as an example, the information provision control device 100 is mounted on the car navigation device 600 (see FIG. 1), and the information provision control is performed in the car navigation device 600. A case where guide route information or the like is provided to a driver who is a user based on the control performed by the apparatus 100 will be described.

The operation will be described.
As with the first embodiment, the information provision control apparatus 100 according to the second embodiment of the present invention is roughly divided into a question response process for receiving a question from a driver and creating a response sentence for the question, and a driver. Based on the degree of understanding determined based on the question from, information providing processing for creating control information for controlling creation of guidance data in the car navigation device 600 is performed.
The specific operation of the question answering process of the information provision control apparatus 100 according to Embodiment 2 of the present invention is the same as that described with reference to FIG. To do.
In the information provision control apparatus 100 according to the second embodiment of the present invention and the information provision control apparatus 100 according to the first embodiment, the information provision processing is described with reference to FIG. 10 in the first embodiment. 9, only the operation content of the understanding level determination process in step ST901 is different. Therefore, only the operation different from the first embodiment will be described in detail, and the same as the information provision control apparatus 100 according to the other embodiment 1. As for the operation of, redundant description is omitted.

FIG. 16 is a flowchart for explaining the operation of understanding level determination processing by the question determination unit 511 in the second embodiment.
Question determination section 511 determines whether or not a question response process has been performed while traveling on the current route (step ST1301). The specific operation is the same as that of step ST1001 of FIG. 10 described in the first embodiment, and thus a duplicate description is omitted.

  In step ST1301, when the question determination unit 511 determines that no question answering process is performed while traveling on the current route, that is, the history storage unit 25 stores the current route while traveling. If there is no history of questions (in the case of “NO” in step ST1301), the question determination unit 511 sets the understanding level to “high” (step ST1306), and sends information on the understanding level “high” to the detail level determination unit 512 Output and finish the process.

  In step ST1301, when driving on the current route, a question about the route by the driver is accepted and a response to the question is made. That is, the history storage unit 25 stores the current route while driving. If there is a history of questions (in the case of “YES” in step ST1301), the question determination unit 511 stores the history of questions stored during traveling on the current route stored in the history storage unit 25. For the latest history, it is determined whether the question format is a question format (step ST1302). The specific operation is the same as that in step ST1002 in FIG.

  In step ST1302, when the question determination unit 511 determines that the certainty factor is high (in the case of “NO” in step ST1302), the question determination unit 511 calculates the question answer matching degree W (step ST1303).

Here, FIG. 17 is a flowchart illustrating an operation in which the question determination unit 511 calculates the question answer matching degree W in the second embodiment.
The operation of step ST1303 will be described in detail using FIG.
First, the question determination unit 511 obtains the content of the question and the information of the answer information from the latest history among the history of questions stored in the history storage unit 25 while traveling on the current route. Obtain (step ST1401). That is, the question determination unit 511 acquires the content of the question from the driver and the answer information for the question acquired from the external information acquisition unit 3 that are stored in the history storage unit 25.
For example, the question determination unit 511 estimates the direction included in the question based on the content of the question acquired in step ST1401 (step ST1402). Here, the question determination unit 511 determines whether a word specifying a route included in the question is a word representing a direction such as “right” or “left”. The direction is estimated as the direction included in the question. For example, when the content of the question is “Is this right?”, Since the word “right” is included, the question determination unit 511 sets the result of estimating the direction included in the question as “RIGHT”. .
Here, the question determination unit 511 represents the result of estimating the direction included in the question as “RIGHT”, “LEFT”, “NONE”, etc., but not limited to this, the result of estimating the direction is Any expression can be used.

Question determining section 511 estimates the direction included in the answer information acquired in step ST1401 (step ST1403). Specifically, the question determination unit 511 determines whether or not a word related to a direction is included in the answer information. If the word is included, the direction is set as the direction included in the answer information. Here, since the answer information to be questioned is returned as “RIGHT”, “LEFT”, etc., when “RIGHT”, “LEFT”, etc. are included, the question determination unit 511 causes the “RIGHT”. , “LEFT” and the like are directions included in the response information.
Further, in the second embodiment, for example, “HOW_DISTANCE {obj = next_turn, next_cross = RIGHT}” is acquired as a question symbol for the question “How many meters ahead is right”. “Intersection direction” and “distance to the next intersection” are included. As a result, response information such as “RIGHT” and “100 m” is acquired.

Question determination section 511 compares the direction included in the question estimated in step ST1402 with the direction included in the answer information estimated in step ST1403, and calculates question answer coincidence W (step ST1404).
Specifically, question determination section 511 converts the direction estimated in steps ST1402 and ST1403 into angle information, and calculates question answer matching degree W.
For example, the question determination unit 511
Right: RIGHT = 0 degrees
Left: LEFT = 180 degrees
Previous: STRIGHT, FORWARD = 90 degrees
After: BACKWARD = 270 degrees The estimated direction is converted into angle information.
Then, the question determination unit 511 calculates the question answer coincidence W by the following formula.

W = | 100− | X−Y | / 180 × 100 |

X: Angle converted from the direction included in the question Y: Angle converted from the direction included in the inquiry result

Here, the unit of the question answer coincidence W is%.

Here, for example, if the question determination unit 511 estimates in step ST1402 that the direction “RIGHT” is included in the question, and in step ST1303, the direction “RIGHT” is included in the answer information,
W = | 100− | 0−0 | / 180 × 100 |
Therefore, the question determination unit 511 calculates the question answer coincidence W = 100%.

For example, if the question determination unit 511 estimates that the direction “RIGHT” is included in the question in step ST1402, and the direction “LEFT” is included in the answer information in step ST1403, the question determination unit 511 The degree of coincidence W = 0% is calculated.
For example, if the question determination unit 511 estimates that the direction “STRAIGHT” included in the question in step ST1402 and the direction “RIGHT” included in the answer information in step ST1403, the question determination unit 511 The degree of coincidence W is calculated as 50%.
In addition, for example, when the question answer matching degree W cannot be calculated because the direction included in the question cannot be estimated, the question determining unit 511 sets the question answer matching degree W = 0%.

As described above, the question determination unit 511 calculates the question answer matching degree W from the direction included in the question from the driver and the direction included in the answer information.
Here, in step ST1302 and step ST1303, the question determination unit 511 uses the latest history among the history of questions stored in the history storage unit 25 while traveling on the current route. However, the question determination unit 511 is not limited to this, and the question determination unit 511 further uses the past history stored in the history storage unit 25. The degree of understanding may be determined, or the question answer matching degree W may be calculated. Moreover, you may make it the question determination part 511 not use about the log | history which a fixed time passed.

Returning to the flowchart of FIG.
In step ST1303, when the question answer matching degree W is calculated, the question determining unit 511 determines whether the question answer matching degree W is equal to or less than the first threshold Th1, that is, whether W ≦ Th1 (step ST1304). Here, for example, the first threshold Th1 is set to 50%. This is only an example, and the first threshold Th1 can be set as appropriate.

In step ST1304, if W ≦ Th1, that is, if W is 50% or less (in the case of “YES” in step ST1304), the question determination unit 511 sets the understanding level to “low” (step ST1305), and the understanding level The information of “low” is output to the detail level determination unit 512, and the process ends.
As described above, for example, in the case of a driver in front of an intersection that should make a left turn, it is estimated using the modality of the question, such as when the driver confidently asks the question of "Next is right" Just because the driver's confidence level is high, it may not be said that the understanding level can be determined appropriately.
Therefore, in this second embodiment, even if it can be estimated that the certainty of the driver's route is high (in the case of “NO” in step ST1302), it is understood that the question / answer matching degree W does not satisfy the first threshold Th1. By setting the degree to “low”, the guide route information can be provided more appropriately according to the actual situation of the driver.

  In step ST1304, if W ≦ Th1, that is, if W is greater than 50% (in the case of “NO” in step ST1304), question determination unit 511 sets the degree of understanding to “high” (step ST1306) and understands. The degree “high” information is output to the detail level determination unit 512, and the process ends.

  On the other hand, when the question determination unit 511 determines that the certainty level is low in step ST1302 (in the case of “YES” in step ST1302), the question determination unit 511 sets the understanding level to “low” (step ST1305) and understands. The degree “low” information is output to the detail level determination unit 512, and the process ends.

  If the driver's confidence level is low, the driver may have asked for more detailed information so that he / she can be confident about the guidance route, so it is preferable that the driver be provided with more detailed information. Conceivable.

  Therefore, in step ST1302, when the question determination unit 511 determines that the certainty factor is low, the question determination unit 511 sets the understanding level to “low” regardless of the question answer coincidence degree W. Thereby, in the subsequent determination of the detail level of the output sentence in the detail level determination unit 512, an output sentence with a higher level of detail can be output so that the driver can be confident. That is, it is possible to prevent an output sentence with a low level of detail from being output by determining that the level of understanding is “high”. As a result, information can be provided with a more appropriate level of detail according to the driver's situation.

  As described above, the question determination unit 511 includes the direction included in the question and the question target answer information acquired by the external information acquisition unit 3 in addition to the certainty factor using the question modality in the understanding level determination process. The degree of understanding of the user is determined in consideration of the degree of coincidence with the direction of the user.

Here, FIG. 18 is a diagram for explaining an example of the relationship between the understanding level, the question answer coincidence level W, and the certainty level for the understanding level determined by the question determination unit 511 in the second embodiment. .
In FIG. 18, as an example, the question answer coincidence degree W and the certainty degree are both binarized. In the second embodiment, the question determination unit 511 determines the degree of understanding based on the AND condition of the question answer coincidence W and the certainty.
In this way, the degree of detail determination unit 512 determines the degree of detail from the degree of understanding obtained by the question determination unit 511, and changes the information provided to the driver.

  Here, the question determination unit 511 has two levels of understanding, “low” and “high”, and the question determination unit 511 distributes the understanding level in two stages, but this is only an example. First, the question determination unit 511 considers, for example, the degree to which the direction included in the question made by the driver and the direction included in the answer information of the question target acquired by the external information acquisition unit 3 match. It is also possible to further subdivide the degree of understanding into three levels.

For example, in step ST1304, if W ≦ Th1 is not satisfied (in the case of “NO” in step ST1304), it is further determined whether Th1 <W <Th2 using the second threshold Th2, and if applicable, the question The determination unit 511 may set the degree of understanding to “medium” (see step ST1601 and step ST1602 in FIG. 19).
Then, the detail level determination unit 512 may determine the detail level according to the understanding level distributed by the question determination unit 511. At this time, the output timing table 53 is defined according to the level of detail determined by the level of detail determination unit 512.

In the second embodiment, as an example, the question determination unit 511 uses the direction, that is, the direction information to calculate the question answer coincidence W. However, the present invention is not limited to this. The question answer coincidence W may be calculated based on the distance of a three-dimensional geographic coordinate such as a mark. For example, the question answer coincidence W may be calculated based on the name of a building.
For example, in the history storage unit 25, “Turn around restaurant A” as the content of the question, “HOW_DISTANCE {obj = next_turn, landmark = restaurant A}” as the question symbol, and “{landmark = restaurant B” as the answer information } "Is stored.
In this case, the question determination unit 511 calculates the question answer coincidence W based on the geographic coordinates of the landmark information “landmark”. When the geographic coordinates of the landmark A are H1 = (X1, Y1, Z1) and the geographic coordinates of the landmark B are H2 = (X2, Y2, Z2), for example, the question determination unit 511 has a Euclidean distance between H1 and H2. If the value is equal to or less than a certain threshold value, the question answer matching degree W can be calculated as 100%, and otherwise, the question answer matching degree W can be calculated as 0%.
Note that the question determination unit 511 may inquire the external information acquisition unit 3 and acquire the geographical coordinates of the landmark A and the landmark B via the external information acquisition unit 3, for example.

  For example, the question determination unit 511 may calculate the question answer coincidence W based on the name of the building. Specifically, for example, the question determination unit 511 estimates the name of the building included in the question and the name of the building included in the answer information, and the “name of the building estimated from the utterance” and “answer information If the "estimated building name" is a completely identical character string or a character string such as an abbreviation indicating the same location, the question answer matching score W is 100%, otherwise the question answer matching score W is 0% It can also be calculated.

  Similarly to the first embodiment, regarding the information provision control apparatus 100 according to the second embodiment, the input of the question to the driver's route is not limited to voice. Further, the output from the output device 800 is not limited to voice. Furthermore, the information provision function controlled by the information provision control device 100 is not limited to the function of performing route guidance while traveling on the guided route. The information provision control apparatus 100 according to the fifth embodiment of the present invention includes a certainty factor using a modality of a question from a user regarding information that can be provided by the information provision apparatus, information included in the question, and a question target. Any device can be used as long as it can calculate the degree of understanding from the degree of coincidence with the information included in the response information, and can be widely applied as a device that controls the information providing function of an information providing device such as any device that provides information. .

  As described above, according to the second embodiment, the question determination unit 511 considers the question answer coincidence W in addition to the certainty factor estimated using the modality of the question from the user. Determine the level of understanding. As a result, information can be provided to the user at a level of detail of information that is more in line with the degree of understanding of the user.

  In the first and second embodiments, the detail level determination unit 512 changes the level of detail of the output sentence and the output timing of the output sentence in accordance with the degree of understanding determined by the question determination unit 511. However, the detail level determination unit 512 may change only the detail level of the output sentence, and the detail level determination unit 512 determines the information amount of the output sentence according to the understanding level determined by the question determination unit 511. As long as it changes the value.

  In the first and second embodiments, the information providing apparatus is, for example, the car navigation apparatus 600. However, the information providing apparatus is not limited to a car navigation apparatus for vehicles, and examples of the information providing apparatus include people, vehicles, railways, The present invention can be applied to a navigation device for a moving body including a ship or an aircraft, and particularly suitable for being brought into a vehicle or mounted on a vehicle.

  In the first and second embodiments, the information provision control apparatus 100 is configured as shown in FIG. 2, but the information provision control apparatus 100 includes the input reception unit 1 and the detail level determination unit 51. Thus, the effects as described above can be obtained.

  Further, within the scope of the present invention, the invention of the present application can be freely combined with each embodiment, modified with any component in each embodiment, or omitted with any component in each embodiment. .

  Since the information presentation control device according to the present invention is configured to be able to change the level of detail of the provided information without asking the user a question, the information provision control for controlling the information to be output to the information providing device It can be applied to a device or the like.

  DESCRIPTION OF SYMBOLS 1 Input reception part, 2 Question response part, 3 External information acquisition part, 4 Output control part, 5 Provision information creation control part, 21 Semantic understanding part, 22 Response sentence creation part, 23 Question analysis knowledge storage part, 24 Response sentence template , 25 History storage unit, 51 Detail determination unit, 52 Output sentence creation unit, 53 Output timing table, 61, 71, 81 Reception unit, 62, 72, 82 Position detection unit, 63 Guide data creation unit, 73 Inspection data creation , 83 Procedure data creation unit, 64, 74, 84 Guidance control unit, 65, 75, 85 Data storage unit, 231 Semantic analysis table, 232 Target table, 301 Processing circuit, 302 HDD, 303 Input interface device, 304 Output interface Device, 305 memory, 306 CPU, 511 question determination unit, 512 detail level determination unit, 600 Car navigation device, 700 input device, 800 output device, 900 equipment inspection work support device, 1000 conversation robot control device.

Claims (7)

An input receiving unit for receiving questions regarding information that can be provided by the information providing device;
Based on the certainty factor estimated using the modality of the question received by the input receiving unit , and the degree of coincidence between the information included in the question and the information included in the answer information for the question , A question determination unit that determines an understanding level of information that can be provided;
A detail level determination unit that determines the level of detail of information to be provided to the information providing apparatus based on the level of understanding determined by the question determination unit.
And an information provision control device. An input receiving unit for receiving questions regarding information that can be provided by the information providing device;
Analyzing the question received by the input receiving unit, identifying the question target that is the target of the inquiry by the question, and a meaning understanding unit that inquires for answer information for the question target;
Obtaining the result of the inquiry made by the meaning understanding unit as the answer information, creating a response sentence to the question based on the answer information, and associating the response sentence with the question and the answer information, A response sentence creation unit to be stored as a history of questions accepted by the input acceptance unit ;
Based on the question history stored by the response sentence creation unit, from a certainty factor estimated using a question modality, a question determination unit that determines an understanding level of information that can be provided by the information providing device;
A detail level determination unit that determines the level of detail of information to be provided to the information providing apparatus based on the level of understanding determined by the question determination unit.
And an information provision control device. A navigation device that guides a route of a moving object using the information provision control device according to claim 1 or 2 ,
A reception unit for receiving questions regarding information that can be provided by the navigation device;
The-out based on the reception unit accepts questions, a navigation device that includes a guidance control unit that controls to output the information associated with the level of detail is determined by the information provision control device. An equipment inspection work support device that provides work information about equipment in a facility using the information provision control device according to claim 1 or claim 2 ,
A reception unit for receiving questions regarding information that can be provided by the facility inspection work support device;
The-out based on the reception unit accepts questions, equipment inspection work support device and a guidance control unit that controls to output the information associated with the level of detail is determined by the information provision control device. A conversational robot control apparatus that controls work procedure guidance using the information provision control apparatus according to claim 1 ,
A reception unit for receiving questions regarding information that can be provided by the conversation robot control device;
The-out based on the reception unit accepts questions, conversation robot controller and a guidance control unit that controls to output the information associated with the level of detail is determined by the information provision control device. An input receiving unit receiving a question about information that can be provided by the information providing device;
Based on the degree of certainty estimated by the question determination unit using the modality of the question received by the input reception unit , and the degree of coincidence between the information included in the question and the information included in the answer information for the question, Determining an understanding level of information that can be provided by the information providing apparatus ;
A step of determining a level of detail of information to be provided to the information providing apparatus based on the level of understanding determined by the question determination unit;
An information provision control method comprising: An input receiving unit receiving a question about information that can be provided by the information providing device;
A step in which the meaning understanding unit analyzes the question received by the input receiving unit, identifies a question target that is a target of the inquiry by the question, and inquires for answer information for the question target;
The response sentence creation unit obtains the result of the inquiry made by the meaning understanding unit as the answer information, creates a response sentence to the question based on the answer information, and sets the response sentence to the question and the answer Storing the history of the questions received by the input receiving unit in association with the information;
Question determination unit, based on the question of history the creation response sentence unit has been stored, the confidence estimated based on the modalities of the question, the physical Kaido against to the information providing apparatus capable of providing information A determining step ;
A step of determining a level of detail of information to be provided to the information providing apparatus based on the level of understanding determined by the question determination unit;
An information provision control method comprising:

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