JP2016121885A - Navigation device, navigation method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that voice guidance pertaining to route guidance cannot be performed with different tones in accordance with a current position or an attribute value on a map that corresponds to the current position.SOLUTION: A navigation device comprising a map information storage unit in which map information pertaining to a map is stored, a current position information acquisition unit for acquiring current position information indicating a current position, and a voice guidance unit for performing voice guidance with different tones in accordance with the current position information and current attribute information derived by applying the current position information to map information makes it possible to perform voice guidance with different tones in accordance with a current position or an attribute value on a map that corresponds to the current position.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a navigation device and the like.

  Conventionally, a navigation device has been developed that searches for a route to a destination set by a user and guides the route to the destination (see Non-Patent Document 1).

"Cyber Navi", [online], Pioneer Corporation, [October 6, 2014 search], Internet [URL; http://pioneer.jp/carrozzeria/carnavi/cybernavi/]

  In conventional navigation devices and the like, voice guidance is always performed with the same tone.

  The navigation device of the first invention includes a map information storage unit that stores map information that is information relating to a map, a current position information acquisition unit that acquires current position information that is information indicating the current position, and current position information And a voice guidance unit that performs voice guidance with different tones according to current attribute information that is a result of applying current position information to map information.

  With such a configuration, voice guidance can be performed with different tones according to the current position and the attribute value on the map corresponding to the current position.

  The navigation device according to the second aspect of the present invention further includes a travel status information acquisition unit that acquires travel status information, which is information indicating the travel status of the mobile body, with respect to the first invention, It is a navigation device that provides voice guidance with different tones according to the driving situation information.

  With such a configuration, it is possible to perform voice guidance with different tones according to the driving situation.

  The navigation device according to the third aspect of the present invention is different from the second aspect in that the voice receiving unit that receives the user voice that is the user's voice, the voice recognition unit that recognizes the user voice, and the user voice by the voice recognition unit The navigation apparatus further includes an operation execution unit that executes an operation corresponding to the condition when the recognition result and the traveling state information satisfy a predetermined condition.

  With such a configuration, an operation related to route guidance can be executed in accordance with the voice from the user.

  The navigation device according to the fourth aspect of the present invention is an input receiving unit that receives information and instructions from the user, and information related to voice guidance corresponding to the information and instructions. A guidance related information configuration unit that constitutes certain guidance related information, and the voice guidance unit is a navigation device that performs voice guidance using the guidance related information.

  With such a configuration, voice guidance according to the user's operation can be performed.

  According to the navigation device or the like according to the present invention, it is possible to perform voice guidance related to route guidance with different tones according to the current position and the attribute value on the map corresponding to the current position.

Block diagram of navigation device 1 according to Embodiment 1 A flowchart for explaining the overall operation of the navigation device 1 Flowchart for explaining acquisition processing of same tone information Flowchart explaining the operation information acquisition process Figure showing an example of the route from the current position to the destination The figure which shows the example of the same tone management information The figure which shows the example of the same operation management information Overview of the computer system in the above embodiment Block diagram of a computer system in the above embodiment

  Embodiments of a navigation device and the like according to the present invention will be described below with reference to the drawings. In addition, since the component which attached | subjected the same code | symbol in embodiment performs the same operation | movement, description may be abbreviate | omitted again. In addition, the format, content, and the like of each information described in this embodiment are merely examples, and the format, content, and the like are not limited as long as the meaning of each information can be indicated.

(Embodiment 1)
In the present embodiment, a navigation device 1 that performs voice guidance with different tones according to the current position at the time of voice guidance and the like will be described.

  In addition, the navigation apparatus 1 in this Embodiment is installed in the mobile body. The moving body is, for example, a so-called automobile, motorcycle, bicycle or the like. In addition, the moving body may include, for example, a person.

  FIG. 1 is a block diagram of a navigation device 1 in the present embodiment. The navigation device 1 includes a map information storage unit 101, a current position information acquisition unit 102, an input reception unit 103, a route search unit 104, an output unit 105, a travel situation information acquisition unit 106, a guidance related information configuration unit 107, and a voice guidance unit 108. A voice reception unit 109, a voice recognition unit 110, and an operation execution unit 111.

  The map information storage unit 101 stores map information. Map information is information about a map. Moreover, the kind of map shown by map information, the data format of map information, etc. are not ask | required. The types of the maps are, for example, topographic maps, topographic maps, geological maps, land use maps, housing maps, route maps, road maps, guide maps, aerial photographs, satellite photographs, and the like. The data format is, for example, raster data, vector data, KIWI format, or the like.

  Moreover, map information usually has one or more point information. The point information is information regarding points on the map. Moreover, it can be said that point information is the information which shows the point on a map, for example. The point information has, for example, point attributes. An attribute is information in which an attribute name (hereinafter appropriately referred to as an attribute name) and an attribute value (hereinafter appropriately referred to as an attribute value) are associated with each other. It can also be said that the attribute value is information indicating the attribute. Moreover, the attribute of a point is usually one or more types.

  The attribute of a point is an identifier, a name, a position, etc., for example. Further, the location attribute may be, for example, an address, a telephone number, a FAX number, or a type. The type may be, for example, a so-called genre or a so-called category. Moreover, the said kind is not ask | required. The said type is an intersection, a station, a convenience store, a gas station, a restaurant, etc., for example.

  The map information usually has one or more road information. Road information is information about roads on a map. A road on a map is usually one or more sections (for example, a section from one intersection to another intersection) constituting a road from a starting point to an ending point. Moreover, it can be said that road information is the information which shows the road on a map, for example. The road information has, for example, road attributes. There are usually one or more types of road attributes.

  The attributes of the road are, for example, an identifier, name, type, speed limit, width, number of lanes, positions at both ends, names at both ends, scores, and the like. The type may be, for example, a type. Also, the type is a type based on, for example, an entity that has jurisdiction over the road, a moving body that can travel on the road, and the presence or absence of a fee required to travel on the road. That is, the types are, for example, a national road, a prefectural road, a prefectural road, a city road, a private road, a highway (automobile road), a general road, a toll road, and the like. Moreover, the name of both ends is the name of the point corresponding to both ends, for example. The said point is an intersection, for example. The score is usually a cost used for route search.

  Further, the map information may have one or more area information, for example. The area information is information related to the area on the map. The region on the map is, for example, a region, a region, or a district. Specifically, the areas on the map are, for example, prefectures, municipalities, and other administrative divisions. It can also be said that the area information is information indicating an area on the map. The region information has, for example, region attributes. The region attribute is usually one or more types.

  The region attributes include, for example, an identifier, a name, a type, a range, and the like. The type may be, for example, a type. The type is, for example, a type based on how the areas are divided. That is, the type is, for example, a region, a region, a prefecture, a municipality, or the like. The type may be, for example, the type of terrain. In this case, the type is, for example, a mountainous area, a plain area, a seaside, an urban area, or the like. The range is a set of three or more positions constituting the outline of the region.

  Hereinafter, the information indicating the position is appropriately referred to as position information. In the following, the position (position indicated by the position information) is usually a longitude and latitude. Further, the position may be coordinates on a map, for example. Further, the position may include, for example, a height (altitude).

  The map information storage unit 101 is preferably a non-volatile recording medium, but can also be realized by a volatile recording medium. Moreover, the process in which predetermined information is memorize | stored in the map information storage part 101 is not ask | required. For example, the predetermined information may be stored in the map information storage unit 101 via a recording medium, a communication line, an input device, or the like.

  The current position information acquisition unit 102 acquires current position information. The current position information is position information indicating the current position. In addition, the current position information acquisition unit 102 normally acquires current position information automatically. Moreover, the timing which acquires present position information does not ask | require. For example, the current position information acquisition unit 102 acquires current position information periodically (every time a predetermined period elapses). In addition, the current position information acquisition unit 102 acquires the current position information, for example, every time there is an instruction from the user.

  The current position information acquisition unit 102 acquires current position information from a satellite navigation system (such as a GPS receiver) or a device that receives position information from a mobile communication base station. In this case, the current position information acquisition unit 102 may have these devices or may be realized by these devices. Further, the processing procedure of the current position information acquisition unit 102 is usually realized by software, and the software is recorded on a recording medium such as a ROM.

  The input receiving unit 103 receives information and instructions. The information and instructions are usually information and instructions from the user. The information received by the input receiving unit 103 is, for example, destination information. The destination information is information indicating the destination. The structure of the destination information is usually the same as that of the point information. That is, the destination information includes, for example, information indicating the position of the destination, information indicating the name of the destination, information indicating the address of the destination, and the like.

  The instructions received by the input receiving unit 103 are, for example, a route search instruction, a power ON instruction, a power OFF instruction, and the like. The route search instruction is an instruction to search for a route to the destination. The reception of the route search instruction may be reception of destination information, for example.

  Note that acceptance means acquisition of information input from an input device such as a touch panel or a keyboard, reading of information stored in a recording medium such as an optical disk, magnetic disk, or semiconductor memory, or via a wired or wireless communication line. It is a concept that includes reception of information transmitted in the same manner.

  The input means for inputting information and instructions in the input receiving unit 103 may be anything such as a menu screen or a keyboard. The input receiving unit 103 can be realized by control software for a menu screen, a device driver for input means such as a keyboard, and the like.

  The route search unit 104 searches for a route and acquires route information. A route is a route from a departure place to a destination. The departure place is usually the current position indicated by the current position information. The current position information is current position information acquired by the current position information acquisition unit 102. The destination is a point indicated by the destination information. The destination information is the destination information received by the input receiving unit 103. The route information is information indicating a route.

  The route information usually has two pieces of position information indicating the position of the start point (departure point) and the position of the end point (destination point). In addition to the two pieces of position information, the route information may include one or more pieces of position information indicating the position of the waypoint, for example. Further, the route information may be information composed of the two or more pieces of position information, for example. Further, the position and the position information may be a point and point information. The route information usually includes road information related to a road connecting two positions or two points. That is, the route information usually has an attribute of each road constituting the route. In addition, the road which comprises a path | route is normally 2 or more.

  Specifically, the route search unit 104 applies, for example, current position information and destination information to map information. The map information is map information stored in the map information storage unit 101. Further, “applying the current position information to the map information” means, for example, that the position on the map indicated by the current position information is set as the departure place. “Applying destination information to map information” means, for example, setting a point on the map indicated by the destination information as the destination. Then, the route search unit 104 searches for a route from the departure place to the destination. At this time, the route search unit 104 normally uses the score of the road information included in the map information as the cost of the route. At this time, the route search unit 104 normally searches for a route having the minimum score.

  Note that the route search usually uses a solution (algorithm) of the shortest route problem. “Solving the shortest path problem” is, for example, the Dijkstra method or the A * algorithm. In addition, since these solutions and methods and procedures for obtaining route information are well known, detailed description thereof will be omitted.

  The output unit 105 outputs information. The information is, for example, map information stored in the map information storage unit 101. Further, the information is, for example, route information acquired by the route search unit 104. The output unit 105 may output other information, for example. The other information is, for example, a screen for the user to instruct the navigation device 1 to execute an operation or a function.

  Output refers to display on a display, projection using a projector, printing on a printer, transmission to an external device, storage in a recording medium, delivery of processing results to another processing device or another program, etc. It is a concept that includes In addition, regarding transmission, accumulation, and delivery of processing results, an output target is finally presented to the user.

  The output unit 105 may or may not include an output device such as a display. The output unit 105 can be implemented by output device driver software, or output device driver software and an output device.

  The travel status information acquisition unit 106 acquires travel status information. The traveling state information is information indicating the traveling state of the moving body. Moreover, the driving | running | working condition may be anything if it is the present driving | running | working condition of the mobile body (for example, motor vehicle) in which the navigation apparatus 1 is installed. That is, the travel status information may be anything as long as it is information indicating the current travel status of the mobile object. The driving status includes, for example, speed, acceleration, ambient brightness, traffic congestion, time to reach the destination, estimated time of arrival at the destination, distance to the destination, driving status of the route (along the route The time to the point where the route is changed (a point where guidance regarding the route is performed), the distance to the point where the route is changed, the presence or absence of a passenger, and the like. The traffic jam condition includes, for example, a traffic jam, a traffic jam not occurring, a traffic jam level (degree), and the like. Further, the distance to the destination is usually the distance of the route to the destination, but may be a linear distance to the destination. Note that the traveling status may include, for example, a current attribute. In other words, the current situation information may be included in the traveling state information, for example. Details of the current attribute and current attribute information will be described later.

  In addition, the traveling state information acquisition unit 106 normally acquires traveling state information automatically. Moreover, the timing which acquires driving condition information does not ask | require. For example, the traveling state information acquisition unit 106 acquires the traveling state information periodically (every time a predetermined period elapses). In addition, the traveling state information acquisition unit 106 acquires traveling state information, for example, every time there is an instruction from the user.

  In addition, the traveling state information acquisition unit 106 usually acquires traveling state information from devices such as a speed sensor and a speedometer, an acceleration sensor and an accelerometer, an illuminance sensor and an illuminometer, and a beacon installed on the road. In this case, the traveling state information acquisition unit 106 may have these devices or may be realized by these devices. Further, the traveling state information acquisition unit 106 may be realized by an MPU, a memory, or the like. Further, the processing procedure of the traveling state information acquisition unit 106 is usually realized by software, and the software is recorded on a recording medium such as a ROM.

  The guidance related information configuration unit 107 configures guidance related information. The guidance related information is information related to voice guidance. Further, it can be said that the guidance related information is information indicating the contents of guidance by voice. The guidance related information is usually voice for voice guidance. The guidance related information may be a character string for voice guidance, for example. The voice guidance is voice guidance corresponding to information or instructions. Further, the information and instructions are information and instructions received by the input receiving unit 103. The “configuration” is a concept including “acquisition”.

  Moreover, the method and procedure etc. which comprise guidance related information are not ask | required. For example, when the input reception unit 103 receives a character string (when a character string is input by the user), the guidance related information configuration unit 107, for example, converts the character string into sound and outputs the sound corresponding to the character string. Obtained as guidance related information. A character string is a set of one or more characters. In addition, voice conversion includes, for example, creating voice and converting it into voice. For voice conversion, for example, a so-called voice synthesis technique is used. In this case, for example, the guidance related information configuration unit 107 may acquire the character string as guidance related information.

  Further, for example, when the input receiving unit 103 receives an instruction to select a button (when the user presses the button), the guidance related information configuration unit 107, for example, transmits a voice corresponding to the button to the guidance related information. Get as. The “voice corresponding to the button” is, for example, voice obtained by converting a character string attached to the button into voice, voice associated with the button, or the like. Further, when acquiring the voice associated with the button, the guidance related information configuration unit 107 holds, for example, correspondence information between the information for identifying the button and the voice in advance. Each button is associated with information for identifying the button. Then, for example, the guidance related information configuration unit 107 acquires information for identifying the button pressed by the user, and acquires a voice corresponding to the information from the correspondence information held in advance.

  The voice guidance unit 108 performs voice guidance with different tones according to current position information, current attribute information, and the like. In other words, the voice guidance unit 108 performs voice guidance with a tone according to the current position information and the current attribute information. The current attribute information is information indicating the current attribute. The current attribute is a map attribute corresponding to the current position. The map attributes are, for example, road attributes, point attributes, area attributes, and the like. That is, map attributes include, for example, a road name, a road type, a point name, a point type, an area name, and an area type. Further, it can be said that the map attribute corresponding to the current position is a result of applying the current position information to the map information, for example. Applying the current position information to the map information means, for example, acquiring road attributes, point attributes, region attributes, and the like corresponding to the current position indicated by the current position information from the map information. The tone is usually a tone (sound pitch). The tone may include, for example, tempo (beat speed) and volume (volume). The tone may include, for example, voice quality. The voice quality here is, for example, masculine voice, feminine voice, youth voice, middle-aged voice, elderly voice, and the like. Further, performing voice guidance means outputting a voice for guidance. The guidance is usually route guidance. Further, the guidance may be, for example, operation guidance. The operation guidance is voice guidance based on guidance related information. The output may include, for example, transmission to an external device, accumulation in a recording medium, delivery of a processing result to another processing device or another program, and the like.

  For example, the voice guidance unit 108 first acquires current attribute information. Then, the voice guidance unit 108 acquires tone information corresponding to, for example, current position information and current attribute information. The tone information is information indicating tone. At this time, the voice guidance unit 108 may acquire, for example, tone information corresponding to the traveling state information. The voice guidance unit 108 performs voice guidance with the tone indicated by the voice information. Performing voice guidance with the tone indicated by the tone information is, for example, performing voice guidance according to the tone information. Hereinafter, (1) a method and procedure for acquiring current attribute information, (2) a method and procedure for acquiring tone information, and (3) a method and procedure for performing voice guidance will be described in order.

  (1) Using the map information and the current position information, the voice guidance unit 108 uses, as the current attribute information, attributes such as roads, points, and areas corresponding to the current position indicated by the current position information from the map information. get. The map information is map information stored in the map information storage unit 101. The current position information is current position information acquired by the current position information acquisition unit 102. For example, the voice guidance unit 108 acquires an attribute of a road that is running (a road that passes through the current position) as current attribute information. In addition, the voice guidance unit 108 acquires, for example, an attribute of a point that is so close that a distance from the current position satisfies a predetermined condition as current attribute information. Further, the voice guidance unit 108 acquires, for example, the attribute of the area including the current position as current attribute information.

  In addition, the voice guidance unit 108 usually acquires current attribute information automatically. Moreover, the timing which acquires attribute information now does not ask | require. The voice guidance unit 108 acquires the current attribute information, for example, periodically (every time a predetermined period elapses). For example, the voice guidance unit 108 acquires the current attribute information every time there is an instruction from the user.

  (2) The voice guidance unit 108 holds, for example, one or more tone management information in advance. The tone management information is information for managing tone information. The tone management information includes tone conditions and tone information. The tone condition is a condition for acquiring tone information. The tone condition is, for example, a condition related to the current position, the current attribute, the traveling situation, and the like. It can also be said that the tone condition is a condition related to, for example, current position information, current attribute information, and driving situation information. Then, the voice guidance unit 108 determines which of the one or more tone conditions satisfies the current position information, the current attribute information, the traveling state information, and the like. Then, the voice guidance unit 108 acquires tone information corresponding to the tone condition satisfied by the current position information, the current attribute information, the traveling state information, and the like from the tone management information. The current position information is current position information acquired by the current position information acquisition unit 102. The current attribute information is current attribute information acquired by the voice guidance unit 108. The travel status information is travel status information acquired by the travel status information acquisition unit 106.

  Specifically, the tone condition is, for example, that the current position indicated by the current position information is a predetermined position, and the name of the road indicated by the current attribute information is a predetermined road name. The type of road indicated by the current attribute information is a predetermined type of road, the name of the point indicated by the current attribute information is the name of the predetermined point, and the point indicated by the current attribute information The type of the point is a predetermined point type, the name of the area indicated by the current attribute information is the name of the predetermined area, and the type of the area indicated by the current attribute information is predetermined. The type of area, the current speed is greater than or equal to a predetermined threshold, the current speed is less than or equal to a predetermined threshold, and the current speed is a predetermined first threshold And the second predetermined It is equal to or less than the threshold, that the traveling road is congested, and the like. Further, the “above” may be “excess”, for example. The “below” may be “less than”, for example. The tone condition may be a combination of two or more of these conditions. The combination is usually a logical product (AND), but may be a logical sum (OR).

  The tone information is, for example, information indicating absolute tone (hereinafter referred to as absolute tone information as appropriate) or information indicating relative tone (hereinafter referred to as relative tone information as appropriate). The absolute tone is, for example, a predetermined tone. The relative tone is, for example, an increment or decrement with respect to a predetermined tone. Specifically, the absolute tone information is, for example, “tone: 50”. The absolute tone information indicates, for example, that the tone is 50 tones in a predetermined range of tones. The absolute tone information is, for example, “tempo: 120 BPM”. The absolute tone information indicates, for example, that the tempo is 120 BPM (120 beats per minute). The absolute tone information is, for example, “volume: 20”. The absolute tone information indicates, for example, that the volume is 20 volumes out of volumes in a predetermined range. The relative tone information is, for example, “tone: +2”. The relative tone information indicates, for example, that the tone is a tone that is two steps higher than a predetermined tone (the tone is raised two steps). The relative tone information is, for example, “tempo: −5 BPM”. The relative tone information indicates, for example, that the tempo is delayed by 5 BPM with respect to a predetermined tempo (the tempo is delayed by 5 BPM). The relative tone information is, for example, “volume: +5”. The relative tone information indicates, for example, that the volume is a volume increased by five levels with respect to a predetermined volume (the volume is increased by five levels).

  In addition, the voice guidance unit 108 acquires tone information at the timing of voice guidance, for example. The timing of performing voice guidance is, for example, the timing of performing voice guidance regarding a route, immediately after acquisition of guidance related information by the guidance related information configuration unit 107, or the like.

  (3) For example, when performing voice guidance related to a route, the voice guidance unit 108 acquires a voice related to route guidance, for example, according to the current position (position where the vehicle is traveling). Then, the voice guidance unit 108 outputs the acquired voice in the tone indicated by the acquired tone information. In addition, since the method, procedure, etc. which acquire the audio | voice regarding the said route guidance are well-known, detailed description is abbreviate | omitted.

  For example, when performing voice guidance based on guidance related information, the voice guidance unit 108 performs, for example, the following processing. The guidance related information is guidance related information acquired by the guidance related information configuration unit 107. For example, when the guidance related information is a voice, the voice guidance unit 108 outputs the voice, for example. For example, when the guidance related information is a character string, the voice guidance unit 108 outputs the character string by voice, for example. To output a character string by voice is to output a voice corresponding to the character string.

  For example, when the tone information is “Tone: 50”, the voice guidance unit 108 outputs the voice with, for example, 50 tones in a predetermined range of tones. For example, when the tone information is “tone: +2”, the voice guidance unit 108 outputs the voice with, for example, a tone that is two steps higher than the current tone or a predetermined tone. An example in which the tone information indicates tempo, volume, and the like is the same as the above-described example in which the tone information indicates a tone, and thus description thereof is omitted.

  When performing voice guidance using guidance related information, the voice guidance unit 108 may output voice in a predetermined tone, for example. This means that in this case, the voice guidance unit 108 may output voice without following the tone information.

  The voice guidance unit 108 may or may not include an output device such as a speaker. The voice guidance unit 108 can be realized by output device driver software, or output device driver software and an output device.

  The voice reception unit 109 receives user voice. The user voice is a user voice. That is, the voice reception unit 109 receives a voice uttered by the user. In addition, the voice reception unit 109 normally receives user voice via a microphone or the like. In this case, the voice reception unit 109 may have the device or may be realized by the device. The processing procedure of the voice reception unit 109 is usually realized by software, and the software is recorded on a recording medium such as a ROM.

  The voice recognition unit 110 recognizes user voice. Recognizing the user voice means converting the user voice into a character string and acquiring a character string corresponding to the user voice. For example, creating a character string includes creating a character string and converting it into a character string. In addition, for example, a so-called speech recognition technique is used for character string conversion. In addition, as a result of recognizing the user voice, the acquired character string is hereinafter referred to as voice recognition result information as appropriate.

  The operation execution unit 111 executes a predetermined operation in accordance with the voice recognition result information, the driving situation information, and the like. The voice recognition result information is a character string acquired by the voice recognition unit 110. The travel status information is travel status information acquired by the travel status information acquisition unit 106. Further, the predetermined operation is, for example, so-called reroute, termination of voice guidance, or the like. The voice guidance is usually voice guidance regarding a route. Further, the predetermined operation may be, for example, music reproduction, video reproduction, and the like. Further, the execution of the predetermined operation may be, for example, instructing a device that performs the operation to perform the operation, or controlling the device that performs the operation.

  Specifically, the operation execution unit 111 holds, for example, one or more pieces of operation management information in advance. The operation management information is information for managing operation information. Further, it can be said that the operation management information is information for managing the operation executed by the operation execution unit 111. The operation information is information indicating the operation. The operation information includes, for example, an operation name, a function name, a process name, a function name, and a method name. The operation management information includes, for example, operation conditions and operation information. The operation condition is a condition for acquiring operation information. The operating conditions are conditions relating to, for example, voice recognition result information, travel status information, and the like. Then, the operation execution unit 111 determines which of the one or more operation conditions satisfies the voice recognition result information, the traveling state information, and the like. Then, the operation execution unit 111 acquires operation information corresponding to the operation condition satisfied by the voice recognition result information, the traveling state information, and the like from the operation management information. Then, the operation execution unit 111 executes the operation indicated by the acquired operation information. Executing the operation indicated by the operation information is, for example, performing an operation according to the operation information.

  Specifically, the operating conditions are, for example, that the character string indicated by the voice recognition result information is a predetermined character string, and the character string indicated by the voice recognition result information is that of the predetermined character string. This means that the pattern matches the pattern, that the traveling status of the route indicated by the traveling status information is off the route, and the like. The predetermined character string is, for example, a positive character string or a negative character string. The tone condition may be a combination of two or more of these conditions.

  The operation information is, for example, “reroute: shortest destination”. The operation information indicates, for example, that the shortest route from the current position to the destination is re-searched (rerouted). The operation information is, for example, “reroute: original route shortest”. The operation information indicates, for example, that the shortest route that returns from the current position to the original route is re-searched (rerouted). The operation information is, for example, “end: voice guidance”. The operation information indicates, for example, that voice guidance is to be ended. The operation information is, for example, “reproduction: CD”. The operation information indicates, for example, that a CD set in the navigation device 1 is reproduced. The operation information is, for example, “reproduction: DVD”. The operation information indicates, for example, that a DVD set in the navigation device 1 is played.

In the operation management information, for example, it is preferable that the following operation conditions are associated with the operation information.
(1) Operation condition: The route is off and the character string is negative. Operation information: The shortest route that returns from the current position to the original route is searched again.
(2) Operation condition: The route is off and the character string is a positive character, Operation information: Re-searching for the shortest route from the current position to the destination.

  Note that the route search unit 104, the guidance related information configuration unit 107, the voice recognition unit 110, and the operation execution unit 111 can be usually realized by an MPU, a memory, or the like. Further, the processing procedure of the route search unit 104 and the like is usually realized by software, and the software is recorded on a recording medium such as a ROM. The route search unit 104 and the like may be realized by hardware (dedicated circuit).

  Next, the overall operation of the navigation device 1 will be described using a flowchart. Note that the i-th information in the predetermined information is described as “information [i]”. FIG. 2 is a flowchart showing the overall operation of the navigation device 1.

  (Step S201) The navigation apparatus 1 determines whether or not the input receiving unit 103 has received an instruction to turn on the power. If accepted, the process proceeds to step S202; otherwise, the process returns to step S201.

  (Step S202) The navigation device 1 performs power-on processing.

  (Step S203) The current position information acquisition unit 102 starts acquiring current position information. Thereafter, the current position information acquisition unit 102 periodically acquires the current position information until the navigation apparatus 1 is turned off.

  (Step S204) The route search unit 104 determines whether the input receiving unit 103 has received destination information. If accepted, the process proceeds to step S205; otherwise, the process proceeds to step S220.

  (Step S205) The route search unit 104 uses the map information stored in the map information storage unit 101, the current position information acquired by the current position information acquisition unit 102, and the destination information received in step S204. The route from the current position to the destination is searched and route information is acquired.

  (Step S206) The output unit 105 outputs the route information acquired in step S205. At this time, the output unit 105 normally outputs the route information together with the map information so that the route indicated by the route information is displayed on the map.

  (Step S207) The voice guidance unit 108 determines whether or not the moving object on which the navigation device 1 is installed is traveling (the navigation device 1 is moving). If it is traveling (moving), the process proceeds to step S208, and if not, the process proceeds to step S220.

  (Step S208) The voice guidance unit 108 determines whether it is the timing of voice guidance regarding the route. If it is the timing, the process proceeds to step S209, and if not, the process proceeds to step S212.

  (Step S209) The voice guidance unit 108 acquires tone information. Details of this processing will be described with reference to the flowchart of FIG.

  (Step S210) The voice guidance unit 108 acquires voice related to route guidance.

  (Step S211) The voice guidance unit 108 outputs the voice acquired in step S210 in the tone indicated by the tone information acquired in step S209.

  (Step S212) The voice guidance unit 108 determines whether the input reception unit 103 has received a character string or button selection instruction. The button selection instruction is an instruction to press a button on the screen. And when it receives, it progresses to step S213, and when that is not right, it progresses to step S216.

  (Step S213) The voice guidance unit 108 acquires tone information. Details of this processing will be described with reference to the flowchart of FIG.

  (Step S214) The voice guidance unit 108 acquires voice related information corresponding to the character string received in step S212 or the button selected by the button selection instruction.

  (Step S215) The voice guidance unit 108 outputs the voice in the tone indicated by the tone information acquired in step S213, using the voice related information acquired in step S214.

  (Step S216) The voice recognition unit 110 determines whether the voice guidance unit 108 has received a user voice. If accepted, the process proceeds to step S217, and if not, the process proceeds to step S220.

  (Step S217) The operation execution unit 111 performs a process of acquiring operation information. Details of this processing will be described with reference to the flowchart of FIG.

  (Step S218) The operation execution unit 111 determines whether operation information has been acquired. If it can be obtained, the process proceeds to step S219. Otherwise, the process proceeds to step S220.

  (Step S219) The operation executing unit 111 executes the operation indicated by the operation information acquired in step S217.

  (Step S220) The navigation apparatus 1 determines whether or not the input receiving unit 103 has received a power-off instruction. If accepted, the process proceeds to step S221, and if not, the process returns to step S207.

  (Step S221) The navigation device 1 performs a power-off process. Then, the process returns to step S201.

  In the flowchart of FIG. 2, the process may be terminated by powering off or a process termination interrupt.

  FIG. 3 is a flowchart showing the tone information acquisition process in steps S209 and S213 of the flowchart of FIG. In the flowchart of FIG. 3, it is assumed that the voice guidance unit 108 holds m tone management information in advance.

  (Step S301) The traveling state information acquisition unit 106 acquires traveling state information. At this time, for example, the voice guidance unit 108 instructs the traveling state information acquisition unit 106 to acquire the traveling state information, and the traveling state information acquisition unit 106 may acquire the traveling state information according to the instruction. Good.

  (Step S302) The voice guidance unit 108 acquires current attribute information using the map information stored in the map information storage unit 101 and the current position information acquired by the current position information acquisition unit 102.

  (Step S303) The voice guidance unit 108 sets 1 to the counter i.

  (Step S304) The voice guidance unit 108 determines whether any one or more of the current position information acquired by the current position information acquisition unit 102, the current attribute information acquired in Step S302, and the traveling state information acquired in Step S301 is a tone. It is determined whether or not the tone condition [i], which is the tone condition included in the management information [i], is satisfied. When it satisfies, it progresses to step S305, and when that is not right, it progresses to step S306.

  (Step S305) The voice guidance unit 108 acquires tone information [i] that is tone information included in the tone management information [i].

  (Step S306) The voice guidance unit 108 determines whether i is m. If it is m, the process returns to the upper process, and if not, the process proceeds to step S307.

  (Step S307) The voice guidance unit 108 increments i by 1. Then, the process returns to step S304.

  FIG. 4 is a flowchart showing the operation information acquisition process in step S217 of the flowchart of FIG. In the flowchart of FIG. 4, it is assumed that the operation execution unit 111 holds m pieces of operation management information in advance.

  (Step S401) The voice recognition unit 110 recognizes the user voice received by the voice reception unit 109, and acquires voice recognition result information.

  (Step S402) The traveling state information acquisition unit 106 acquires traveling state information. At this time, for example, the operation execution unit 111 instructs the traveling state information acquisition unit 106 to acquire the traveling state information, and the traveling state information acquisition unit 106 may acquire the traveling state information according to the instruction. Good.

  (Step S403) The operation executing unit 111 sets 1 to the counter i.

  (Step S404) The operation execution unit 111 is an operation in which any one or more of the voice recognition result information acquired in step S401 and the travel status information acquired in step S402 is an operation condition included in the operation management information [i]. It is determined whether or not the condition [i] is satisfied. If so, the process proceeds to step S405. Otherwise, the process proceeds to step S406.

  (Step S405) The operation execution unit 111 acquires operation information [i] that is operation information included in the operation management information [i].

  (Step S406) The operation executing unit 111 determines whether i is m. If m, the process returns to the upper process, and if not, the process proceeds to step S407.

  (Step S407) The operation executing unit 111 increments i by 1. Then, the process returns to step S404.

  Note that the overall operation of the navigation device 1 described above is merely an example. That is, the overall operation of the navigation device 1 is not limited to the above description.

(Concrete example)
Next, a specific example of the operation of the navigation device 1 will be described. In this specific example, the navigation device 1 is assumed to be a car navigation system (hereinafter referred to as a car navigation system) installed in a car. In addition, the route search unit 104 uses the current position information acquired by the current position information acquisition unit 102, the destination information received by the input reception unit 103, and the map information stored in the map information storage unit 101 to search for a route. It has been searched (route information has been acquired). The route is, for example, FIG. In FIG. 5, the icon “S” is an icon indicating a departure place (current position). The “G” icon is an icon indicating a destination. In addition, it is assumed that the current position information acquisition unit 102 periodically acquires current position information, for example, for route guidance.

(Example 1)
In this example, an example in which voice related to route guidance is output in different tones will be described. In this example, it is assumed that the voice guidance unit 108 holds the tone management information shown in FIG. 6 in advance. The tone management information includes an ID for uniquely identifying a record, tone conditions, and tone information.

  First, it is assumed that the car is traveling according to the route displayed on the car navigation screen. Then, it is assumed that the vehicle has reached an intersection that changes its course (for example, turn right or turn left). Then, the voice guidance unit 108 determines that it is time to perform voice guidance related to a route (timing to output voice related to route guidance). The voice guidance unit 108 acquires voice related to route guidance. The acquisition may be, for example, a configuration.

  Next, the voice guidance unit 108 acquires current attribute information using the map information stored in the map information storage unit 101 and the current position information acquired by the current position information acquisition unit 102. The current attribute information is assumed to be “road type: national road”. The current attribute information indicates that the type of road being traveled is a national road.

  Next, the voice guidance unit 108 instructs the traveling state information acquisition unit 106 to acquire the traveling state information. Then, the traveling state information acquisition unit 106 acquires the traveling state information according to the instruction. The traveling state information is assumed to be “speed: 55 km / h”. The traveling state information indicates that the speed of the automobile is 55 km / h.

  Next, the voice guidance unit 108 includes the current position information acquired by the current position information acquisition unit 102, the current attribute information “road type: national road” acquired by the voice guide unit 108, and the driving status acquired by the driving status information acquisition unit 106. Among the information “speed: 55 km / h”, the current attribute information and the running status information are the tone condition “(road type = national road | highway) & (speed ≧ 50 km / h)” of “ID = 011” in FIG. Judge that it satisfies. The tone condition means that the type of road being traveled is a national road or a highway, and the speed of the automobile is 50 km / h or more. Then, the voice guidance unit 108 acquires the tone information “tone: 50” of “ID = 011” in FIG. 6. The tone information indicates that the tone is 50 tones within a predetermined range of tones.

  Next, the voice guidance unit 108 outputs the acquired voice related to the route guidance in 50 tones in a predetermined range of tones according to the tone information “tone: 50”.

  Further, for example, at other timing when voice guidance regarding the route is performed, the current attribute information acquired by the voice guidance unit 108 is “region type: mountainous region”, and the driving status information acquired by the driving status information acquisition unit 106 is “ It is assumed that the speed is 45 km / h. The current attribute information indicates that the type of the traveling area is a mountain area. In such a case, the voice guidance unit 108 indicates that the current attribute information and the traveling state information indicate that the tone condition “(region type = mountain portion) & (40 km / h ≦ speed <60 km) of“ ID = 014 ”in FIG. / H) ”. The voice guidance unit 108 acquires the tone information “tempo: 80 BPM” of “ID = 014” in FIG. 6. The tone information indicates that the tempo is 80 BPM.

  Next, the voice guidance unit 108 outputs the acquired voice about the route guidance at a tempo of 80 BPM according to the tone information “tempo: 80 BPM”.

  Note that, as in this example, the voice guidance unit 108 may obtain the voice to be output before obtaining the tone information, for example.

(Example 2)
In this example, a description will be given of an example in which voices related to user operations (input of character strings, button presses) are output in different tones. In this example, it is assumed that the voice guidance unit 108 holds the tone management information shown in FIG. 6 in advance.

  First, it is assumed that the user performs an operation of inputting a character string “Kobe night view” on the car navigation system. Then, the input reception unit 103 receives the character string.

  Next, the guidance related information configuration unit 107 assigns a predetermined character string “Ye” to the received character string. Then, an unnecessary character string is deleted from the character string after the assignment. And the guidance related information structure part 107 acquires the character string "It is a Kobe night view."

  Next, the guidance related information configuration unit 107 acquires speech by speech synthesis using the acquired character string. The voice is a voice related to an operation by the user. The voice is guidance related information.

  Next, the voice guidance unit 108 acquires current attribute information using the map information stored in the map information storage unit 101 and the current position information acquired by the current position information acquisition unit 102. The current attribute information is assumed to be “road type: national road”.

  Next, the voice guidance unit 108 instructs the traveling state information acquisition unit 106 to acquire the traveling state information. Then, the traveling state information acquisition unit 106 acquires the traveling state information according to the instruction. The traveling state information is assumed to be “speed: 45 km / h”.

  Next, the voice guidance unit 108 includes the current position information acquired by the current position information acquisition unit 102, the current attribute information “road type: national road” acquired by the voice guide unit 108, and the driving status acquired by the driving status information acquisition unit 106. Among the information “speed: 45 km / h”, the current attribute information and the traveling state information are the tone condition “(road type = national road | highway) & (40 km / h ≦ speed <50 km) of“ ID = 012 ”in FIG. / H) ”. Then, the voice guidance unit 108 acquires tone information “tone: 40” of “ID = 012” in FIG. 6.

  Next, the voice guidance unit 108 outputs the voice related to the operation by the user acquired by the guidance related information configuration unit 107 according to the tone information “tone: 40” in 40 tones in a predetermined range of tones. To do.

  Further, for example, it is assumed that the user performs an operation of pressing a button displayed on the screen with respect to the car navigation system. It is assumed that the character string “search” is given to the button. Then, the input reception unit 103 receives a button selection instruction for selecting the button.

  Next, the guidance related information configuration unit 107 acquires the character string “search” assigned to the button pressed by the user (the button selected by the button selection instruction). Then, the guidance related information configuration unit 107 assigns a predetermined character string “I will” to the character string. Then, the guidance related information configuration unit 107 acquires the character string “Search”.

  Next, the guidance related information configuration unit 107 acquires speech by speech synthesis using the acquired character string. The voice is a voice related to an operation by the user. The voice is guidance related information.

  Next, the voice guidance unit 108 acquires current attribute information using the map information stored in the map information storage unit 101 and the current position information acquired by the current position information acquisition unit 102. The current attribute information is assumed to be “area type: urban area”.

  Next, the voice guidance unit 108 instructs the traveling state information acquisition unit 106 to acquire the traveling state information. Then, the traveling state information acquisition unit 106 acquires the traveling state information according to the instruction. The traveling state information is assumed to be “speed: 45 km / h”.

  Next, the voice guidance unit 108 includes the current position information acquired by the current position information acquisition unit 102, the current attribute information “region type: urban area” acquired by the voice guide unit 108, and the driving status acquired by the driving status information acquisition unit 106. Among the information “speed: 45 km / h”, it is determined that the current attribute information satisfies the tone condition “(area type = city area)” of “ID = 019” in FIG. 6. The voice guidance unit 108 acquires the tone information “volume: +5” of “ID = 019” in FIG.

  Next, the voice guidance unit 108 increases the voice related to the operation by the user acquired by the guidance related information configuration unit 107 by five levels from the current volume or a predetermined reference volume according to the tone information “volume: +5”. Output at a certain volume.

  As in this example, the guidance related information configuration unit 107 performs a predetermined process (for example, addition of a character string, deletion of a character string) on the character string acquired in response to an operation by the user. Also good.

  Similarly to Example 1, the guidance related information configuration unit 107 may acquire the voice output by the voice guidance unit 108 before the voice guidance unit 108 acquires the tone information.

(Example 3)
In this example, a description will be given of an example in which an operation according to a user voice and a driving situation is executed. In this example, it is assumed that the operation execution unit 111 holds the operation management information illustrated in FIG. 7 in advance. The operation management information includes an ID for uniquely identifying a record, an operation condition, and operation information.

  First, it is assumed that the car is traveling according to the route displayed on the car navigation screen. Then, it is assumed that the user makes a mistake in changing the route and the car is off the route. Then, it is assumed that the user utters “I made a mistake”. Then, the voice reception unit 109 receives the user voice “I made a mistake”.

  Next, the voice recognizing unit 110 recognizes the user voice received by the voice receiving unit 109 and acquires a character string “wrong” which is voice recognition result information.

  Next, the operation execution unit 111 instructs the traveling state information acquisition unit 106 to acquire the traveling state information. Then, the traveling state information acquisition unit 106 acquires the traveling state information according to the instruction. The traveling state information is assumed to be “route traveling state: out of route”. The travel status information indicates that the travel status of the route is out of the route (that the route has been removed from the route).

  Next, the action execution unit 111 sets the voice recognition result information “I made a mistake” and the driving situation information “Route driving situation: Out of the path” as “Operation user condition“ (User voice ⊃ ”“ ID = 011 ”in FIG. "|" I made a mistake "|" Miss ") & (Route driving condition = Outside route)" is determined. The operation condition includes a character string (speech recognition result information) as a result of recognizing the user voice including one or more character strings of “False”, “Missed”, and “Miss”, and It means that the traveling state of the route is out of the route. Then, the operation execution unit 111 acquires the operation information “reroute: original route shortest” of “ID = 011” in FIG. 7. The operation information indicates that the shortest route that returns to the original route is re-searched (rerouted).

  Next, the operation execution unit 111 searches again for the shortest route to return to the original route according to the operation information “reroute: the shortest original route”. At this time, the operation execution unit 111 normally instructs the route search unit 104 to re-search for the shortest route that returns to the original route. Then, the route search unit 104 searches for the shortest route to return to the original route according to the instruction, and acquires route information indicating the route to the destination including the route. Then, the output unit 105 outputs the route information.

  In addition, for example, as described above, it is assumed that the user makes a mistake in changing the course and makes a voice saying, “You can leave it as it is”. Then, the voice receiving unit 109 receives the user's voice “Okay as it is”, and the voice recognition unit 110 acquires the character string “Okay as it is” as the voice recognition result information.

  Next, the operation execution unit 111 instructs the traveling state information acquisition unit 106 to acquire the traveling state information. Then, similarly to the above, the traveling state information acquisition unit 106 acquires the traveling state information “route traveling state: out of route”.

  Next, the operation execution unit determines that the speech recognition result information “OK to be as it is” and the travel status information “route travel status: out of route” are “ID = 012” in the operation condition “(user voice ⊃“ OK ”). | "As is" | "No problem") & (Route driving condition = Off route) "is satisfied. The operating condition is that a character string (speech recognition result information) as a result of recognizing the user voice includes one or more character strings of “OK”, “KEEP AS IS”, “NO PROBLEM”, and a path This means that the driving situation is outside the route. Then, the operation execution unit 111 acquires the operation information “reroute: shortest destination” of “ID = 012” in FIG. 7. The operation information indicates that the shortest route from the current position to the destination is re-searched (rerouted).

  Next, the motion execution unit 111 searches again for the shortest route from the current position to the destination according to the motion information “reroute: shortest destination”. At this time, the operation execution unit 111 normally instructs the route search unit 104 to re-search for the shortest route from the current position to the destination. Then, the route search unit 104 searches for the shortest route from the current position to the destination according to the instruction, and acquires route information indicating the route. Then, the output unit 105 outputs the route information.

  As described above, according to the navigation device 1 according to the present embodiment, it is possible to perform voice guidance regarding route guidance with different tones according to the current position and the attribute value on the map corresponding to the current position. Thereby, for example, even the same voice can be output with different tone according to the current position. Thereby, the user can enjoy driving more, for example.

  Further, according to the navigation device 1 according to the present embodiment, it is possible to output a sound related to the operation with a different tone in accordance with a user operation (input of a character string, button press, etc.). Thereby, for example, even when the same operation is performed, it is possible to output a sound related to the operation with different tone depending on the current position or the like. In addition, this allows the user to feel that the navigation device 1 is speaking to himself (user), for example, when driving alone, and can enjoy driving more.

  Further, in each of the above embodiments, it goes without saying that two or more communication units existing in one apparatus may be physically realized by one medium.

  The navigation device in each of the above embodiments may be, for example, a stand-alone device or a server device in a server / client system.

  In each of the above embodiments, each process or each function may be realized by centralized processing by a single device or a single system, or distributed by a plurality of devices or a plurality of systems. It may be realized by being processed.

  In each of the above embodiments, each component may be configured by dedicated hardware, or a component that can be realized by software may be realized by executing a program. For example, each component can be realized by a program execution unit such as a CPU reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

  Moreover, the software which implement | achieves the navigation apparatus in each said embodiment is the following programs, for example. In other words, this program uses a computer that can access a map information storage unit that stores map information that is information about a map, a current position information acquisition unit that acquires current position information that is information indicating the current position, and the current position It is a program for functioning as a voice guidance unit that performs voice guidance with different tones according to current attribute information that is a result of applying information and the current position information to the map information.

  In the program, the functions realized by the program do not include functions that can be realized only by hardware.

  The program may be executed by being downloaded from a server or the like, or a program recorded on a predetermined recording medium (for example, an optical disk such as a CD-ROM, a magnetic disk, a semiconductor memory, or the like) is read out. May be executed. Further, this program may be used as a program constituting a program product.

  Moreover, the computer which performs the said program may be single, and plural may be sufficient as it. That is, centralized processing may be performed, or distributed processing may be performed.

  FIG. 8 is an overview diagram of a computer system 9 that executes the above-described program to realize the navigation device or the like of the above-described embodiment. The above-described embodiments can be realized by computer hardware and a computer program executed thereon.

  In FIG. 8, the computer system 9 includes a computer 901 including a CD-ROM drive 9011, a keyboard 902, a mouse 903, and a monitor 904.

  FIG. 9 is a block diagram of the computer system 9. In FIG. 9, in addition to the CD-ROM drive 9011, a computer 901 is connected to an MPU 9013, a ROM 9014 for storing a program such as a bootup program, and the MPU 9013, and temporarily stores an instruction of an application program. A RAM 9015 for providing a temporary storage space, a hard disk 9015 for storing application programs, system programs, and data, and a bus 9016 for interconnecting a CD-ROM drive 9011, an MPU 9012, and the like are provided. Although not shown here, the computer 901 may further include a network card that provides connection to a LAN.

  A program that causes the computer system 9 to execute the functions of the navigation device or the like of the above-described embodiment may be stored in the CD-ROM 9101, inserted into the CD-ROM drive 9011, and further transferred to the hard disk 9015. Alternatively, the program may be transmitted to the computer 901 via a network (not shown) and stored in the hard disk 9015. The program is loaded into the RAM 9014 when executed. The program may be loaded directly from the CD-ROM 9101 or the network.

  The program does not necessarily include an operating system (OS), a third-party program, or the like that causes the computer 901 to execute the functions of the navigation device of the above-described embodiment. The program only needs to include an instruction portion that calls an appropriate function (module) in a controlled manner and obtains a desired result. How the computer system 9 operates is well known and will not be described in detail.

  Further, the present invention is not limited to the above-described embodiment, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

  As described above, the navigation device according to the present invention has an effect that voice guidance can be performed with different tones according to the current position and the attribute value on the map corresponding to the current position, such as a car navigation system or the like. Useful as.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 101 Map information storage part 102 Current position information acquisition part 103 Input reception part 104 Route search part 105 Output part 106 Running condition information acquisition part 107 Guidance related information structure part 108 Voice guidance part 109 Voice reception part 110 Voice recognition part 111 Operation execution unit

Claims (6)

A map information storage unit that stores map information that is information about the map;
A current position information acquisition unit for acquiring current position information, which is information indicating the current position;
A navigation apparatus comprising: a voice guidance unit that performs voice guidance with different tones according to the current position information and current attribute information that is a result of applying the current position information to the map information. It further includes a traveling state information acquisition unit that acquires traveling state information that is information indicating the traveling state of the mobile body,
The voice guidance unit
The navigation apparatus according to claim 1, wherein voice guidance is performed with different tones according to the traveling state information. A voice reception unit that receives user voice that is user voice;
A voice recognition unit for recognizing the user voice;
The navigation device according to claim 2, further comprising: an operation execution unit that executes an operation corresponding to the condition when the recognition result of the user voice by the voice recognition unit and the traveling state information satisfy a predetermined condition. An input receiving unit for receiving information and instructions from the user;
A guidance related information constituting unit that constitutes guidance related information that is information related to the information and voice guidance corresponding to the instruction,
The voice guidance unit
The navigation apparatus according to any one of claims 1 to 3, wherein voice guidance is performed using the guidance related information. A map information storage unit that stores map information that is information about the map;
A navigation method performed using a current position information acquisition unit and a voice guidance unit,
The current position information acquisition unit,
A current position information acquisition step for acquiring current position information, which is information indicating the current position;
The voice guidance unit is
A navigation method comprising a voice guidance step of performing voice guidance with different tones according to the current position information and current attribute information that is a result of applying the current position information to the map information. A computer that can access a map information storage unit that stores map information that is information about the map,
A current position information acquisition unit for acquiring current position information, which is information indicating the current position;
The program for functioning as a voice guidance part which performs voice guidance with a different tone according to the present attribute information which is a result of applying the present position information and the present position information to the map information.

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