JP2006178898A - Point search device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a point search device capable of surely obtaining information of a desired point from a large number of candidates obtained by voice recognition with a simple configuration.
SOLUTION: A display device 13 for displaying information, a speech recognition device 11 for recognizing spoken speech, a location database 12 for storing information about locations, and a location database search according to a recognition result of the speech recognition device. When the database search means 10 that performs the search and the number of candidate cases searched by the database search means are larger than a predetermined value, a message prompting utterance for narrowing down candidates is displayed on the display device, and the number of candidate cases is equal to or less than the predetermined value Includes a control means 10 for displaying all candidates on the display device, and a selection means 3 for selecting a candidate displayed on the display device by manual control or voice operation using a voice recognition device under the control of the control means. I have.
[Selection] Figure 1

Description

  The present invention relates to a point search device that searches for a point by two types of operations such as voice operation and manual operation.

  2. Description of the Related Art Conventionally, an increasing number of electronic devices use voice recognition technology for man-machine interfaces. A car navigation system is known as one of such electronic devices. This car navigation system sets a desired point as a destination, searches for a route from the current position of the vehicle to the destination, and displays the searched route on a display together with a map including a mark indicating the current position. Therefore, it has a navigation function of guiding the user to the destination.

  Incidentally, the car navigation system generally has a facility search function for searching for a facility designated by the user in addition to the navigation function. As a device for controlling the facility search function by voice, a facility search device that can easily search for a facility without forcing the user to restrict the utterance order is known (for example, see Patent Document 1). In general, a speech recognition apparatus can distinguish and recognize 1,000 or more candidates at a time using a large vocabulary recognition technique, but has a drawback in that erroneous recognition occurs. The facility search device described in Patent Document 1 is a region that is input in an arbitrary procedure by simultaneously referring to all genre name dictionaries and region name dictionaries as a refinement dictionary in order to supplement such drawbacks. Recognize the name and facility type name as a filtering condition, acquire the number of facility names that satisfy the filtering condition, create a facility name dictionary when the number of facility names is less than or equal to the specified value, and create the facility Performs speech recognition processing of facility names input by voice using the name dictionary.

JP 2002-123279 A

  However, the above-described conventional facility search apparatus requires processing for extracting facility names for creating a facility name dictionary for narrowing down, and the configuration becomes complicated, and voice recognition processing continues after narrowing down. Thus, there is a problem that the process of selecting a desired facility is performed, so that the occurrence of erroneous recognition cannot be avoided and the information on the desired facility cannot be obtained from a plurality of facilities.

  The present invention has been made to solve the above-described problems, and the problem is that it is possible to reliably obtain information on a desired point from among a large number of candidates obtained by speech recognition with a simple configuration. An object of the present invention is to provide a point search device capable of performing the above.

  The point search device according to the present invention includes a display device for displaying information, a voice recognition device for recognizing spoken speech, a point database for storing information about points, and a point database according to a recognition result of the voice recognition device. When the database search means to search and the number of candidates for the points searched by the database search means are larger than a predetermined value, a message prompting utterance to narrow down the candidates is displayed on the display device, and the number of candidate cases is below the predetermined value Comprises control means for displaying all candidates on the display device, and selection means for selecting the candidates displayed on the display device under the control of the control means by either manual operation or voice operation using the voice recognition device. ing.

  According to the present invention, a point database is searched by voice recognition, and when the number of candidates for the searched points is larger than a predetermined value, a message prompting utterance for narrowing down candidates is displayed, and the number of candidates is equal to or less than the predetermined value. In this case, all the candidates are displayed and can be selected by manual operation. Therefore, despite the simple configuration, information on a desired point is surely obtained from a large number of candidates obtained by voice recognition. Can get to.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following, a case where facility search is performed will be described as an example of point search.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a point search apparatus according to Embodiment 1 of the present invention realized on a car navigation system. The point search apparatus includes a car navigation unit 1, a microphone (hereinafter abbreviated as “microphone”) 2, and an operation unit 3.

  The car navigation unit 1 executes a navigation function, a facility search function, and the like in response to an instruction from the microphone 2 or the operation unit 3. Details of the car navigation unit 1 will be described later. The microphone 2 is used for operating the point search device by voice. The microphone 2 converts the spoken voice into an electric signal and sends it to the car navigation unit 1 as a voice signal. The operation unit 3 corresponds to the selection means of the present invention and is used to manually operate the point search device. The operation unit 3 includes a remote controller (hereinafter abbreviated as “remote controller”) and a touch panel. Details of the operation unit 3 will be described later.

  Next, details of the car navigation unit 1 will be described. The car navigation unit 1 includes a calculation device 10, a voice recognition device 11, a point database 12, a display device 13, an operation signal reception device 14, a memory 15, a current position detection means 16, a vehicle speed pulse detection means 17, and a parking brake detection means 18. It is configured.

  The arithmetic device 10 is composed of, for example, a microcomputer, and controls the entire point search device. For example, the arithmetic device 10 searches the point database 12 according to the recognition result from the speech recognition device 11, acquires a corresponding candidate, and causes the display device 13 to display it. The database search means and control means of the present invention are realized by the arithmetic unit 10. Details of the arithmetic unit 10 will be described later.

  The voice recognition device 11 executes voice recognition processing using a voice recognition dictionary (not shown) based on the voice signal sent from the microphone 2. In this voice recognition process, a unique recognition result is returned for the input voice. For example, when a voice “convenience store” is input, for example, a unique ID (for example, 12345) is returned as a recognition result corresponding to “convenience store”. The ID obtained by voice recognition in the voice recognition device 11 is sent to the arithmetic device 10.

  The location database 12 is constructed in a storage medium such as a hard disk drive (HDD), a compact disc (CD), or a digital versatile disk (DVD), for example, to realize a navigation function and a facility search function such as map data and facility data. It stores various data used for the. This point database 12 is accessed by the arithmetic device 10. The display device 13 is composed of, for example, a liquid crystal display or a CRT display device, and displays a map and characters according to image data sent from the arithmetic device 10.

  The operation signal receiving device 14 is attached to the display device 13, receives an operation signal sent from the operation unit 3, and sends it as operation data to the arithmetic device 10. In this case, the arithmetic device 10 generates image data according to the operation data received from the operation signal receiving device 14 and sends the image data to the display device 13. Accordingly, the operation result is displayed on the display device 13 in conjunction with the operation of the operation unit 3, so that the user can take the next action.

  The memory 15 stores various data used by the arithmetic device 10 for processing. For example, although details will be described later, the memory 15 stores a candidate number s to be presented to the user when the vehicle is stopped and a candidate number r (s> r) to be presented to the user when the vehicle is traveling. The stored contents of the memory 15 are read from the arithmetic device 10. These candidate number s and candidate number r are set at the time of factory shipment of the point search device. It should be noted that the candidate number s and the candidate number r can be configured to be changed at an arbitrary time after factory shipment.

  The current position detection means 16 is composed of, for example, a GPS receiver, and detects the current position of the point search device. Information (current position information) indicating the current position detected by the current position detection means 16 is sent to the arithmetic unit 10. The vehicle speed pulse detection means 17 detects a vehicle speed pulse generated from the vehicle during traveling. The vehicle speed pulse detected by the vehicle speed pulse detection means 17 is sent to the arithmetic unit 10. The parking brake detection means 18 detects whether the side brake is on or off. Information representing the on / off of the side brake detected by the parking brake detection means 18 is sent to the arithmetic unit 10. The arithmetic unit 10 determines whether the vehicle is running or stopped based on the presence / absence of a vehicle speed pulse from the vehicle speed pulse detection unit 17 or information indicating whether the side brake is on or off from the parking brake detection unit 18. Detect.

  Next, details of the operation unit 3 will be described. FIG. 2 is a diagram schematically showing the configuration of the remote control operation unit 40 of the remote control that constitutes the operation unit 3. The remote control unit 40 includes an utterance key 41 and a candidate selection key 42. The utterance key 41 is pressed when voice recognition is started, and is used as an activation trigger for the voice recognition device 11. The candidate selection key 42 is configured to operate in at least two directions, and is used to select one of a plurality of candidates displayed on the display device 13. Each time the candidate selection key 42 is pressed in one direction, the candidate selection state moves in the forward direction, and each time the candidate selection key 42 is pressed in the other direction, the candidate selection state moves in the reverse direction. The candidate selected by pressing the entire candidate selection key 42 is determined. The remote controller generates an operation signal corresponding to the operation of the speech key 41 or the candidate selection key 42 and transmits the operation signal to the operation signal receiving device 14 using, for example, infrared rays.

  The operation of the remote controller (operation unit 3) is interlocked with the display on the display device 13 as described above. FIG. 3 shows an example of a remote control operation screen when the remote control configuring the operation unit 3 is operated. In this case, the button 131 selected at that time is highlighted in a bright color or the like, and the highlight display moves to another button 132 by moving the candidate selection key 42 up and down. Thereby, the candidate displayed with the buttons 131 and 132 on the screen of the display device 13 is selected. A candidate is determined by pressing the entire candidate selection key 42. The candidate can be determined by recognizing the button name uttered by the speech recognition by the speech recognition apparatus 11 or by recognizing the utterance “decision”.

  When the operation unit 3 is configured with a touch panel, a transparent touch panel is placed on the screen of the display device 13. FIG. 4 shows an example of a touch panel operation screen when the touch panel constituting the operation unit 3 is operated. In this case, selection and determination are simultaneously performed by the user touching the touch panel at a position corresponding to the buttons 135 and 136 displayed on the screen of the display device 13. The touch panel generates an operation signal corresponding to the touched position and sends the operation signal to the operation signal receiving device 14.

Next, details of the arithmetic unit 10 will be described. FIG. 5 is a block diagram illustrating a detailed configuration of the arithmetic device 10. The arithmetic unit 10 includes a recognition result input unit 21, a database reading unit 22, a database search unit 23, a counter 25, a running determination unit 26, a display number determination unit 27, a number comparison unit 28, a distance calculation unit 29, and a screen layout switching. It comprises means 30, a button selection means 31, and an image data generation unit 32.
It is composed of

  The recognition result input means 21 receives an ID sent as a result of voice recognition from the voice recognition device 11 and sends it to the database search means 23 as a search key. The database reading means 22 reads candidates that match the search key sent from the database searching means 23 from the point database 12 and returns them to the database searching means 23. The database search means 23 searches the point database 12 using the ID sent from the recognition result input means 21 as a search key. More specifically, the database search unit 23 sends a search key to the database reading unit 22 and acquires candidates returned from the database reading unit 22 in response thereto. Candidates obtained by searching by the database searching unit 23 are sent to the counter 25, the distance calculating unit 29, and the image layout switching unit 30.

  The counter 25 counts the number of candidates searched by the database search means 23. The count value (number of retrieved candidates) counted by the counter 25 is sent to the number comparison means 28 and the screen layout switching means 30. The traveling determination means 26 is based on the information indicating the presence / absence of the vehicle speed pulse sent from the vehicle speed pulse detection means 17 and the information showing the on / off state of the side brake sent from the parking brake detection means 18. It is determined whether or not. The determination result in the traveling determination means 26 is sent to the display number determination means 27 as traveling information.

  When the traveling information sent from the traveling determination unit 26 indicates that the vehicle is stopped, the display number determination unit 27 reads the candidate number s to be presented to the user when the vehicle is stopped from the memory 15 and indicates that the vehicle is traveling. If there is, the candidate number r to be presented to the user during traveling is read from the memory 15 and determined as the candidate number C to be presented to the user. The candidate number C determined by the display number determination means 27 is sent to the number comparison means 28 and the screen layout switching means 30.

  The number comparison means 28 compares the count value (candidate number n) sent from the counter 25 with the candidate number C sent from the display number determination means 27 and sends the comparison result to the screen layout switching means 30. . The distance calculation means 29 calculates the distance to the facility sent as a candidate from the database search means 23 based on the current position information sent from the current position detection means 16. Information representing the distance from the current position to the facility calculated by the distance calculating unit 29 is sent to the screen layout switching unit 30.

  The screen layout switching means 30 includes the candidate number C from the display number determination means 27, the comparison result from the number comparison means 28, the number n of candidates from the counter 25, the candidates from the database search means 23, and the distance from the distance calculation means 29. The screen layout of the display device 13 is switched based on the information indicating Data forming the screen switched by the screen layout switching means 30 is sent to the image data generation unit 32.

  The button selection unit 31 selects a button to be highlighted in accordance with operation data from the operation signal receiving device 14. Information representing the button selected by the button selection means 31 is sent to the image data generation unit 32. The image data generation unit 32 is an image based on data for forming a screen sent from the screen layout switching unit 30 and displays an image in which the button selected by the button selection unit 31 is highlighted. Generate image data. The image data generated by the image data generation unit 32 is sent to the display device 13.

  Next, the operation of the spot search device according to Embodiment 1 of the present invention configured as described above will be described with reference to the flowchart shown in FIG.

  First, after the utterance key 41 of the remote controller that constitutes the operation unit 3 is pressed, when the user utters, for example, “convenience store”, voice recognition processing is executed (step ST10). That is, the voice recognition device 11 executes voice recognition processing using a predetermined voice recognition dictionary based on the voice signal transmitted from the microphone 2. The unique ID obtained by the voice recognition process in the voice recognition device 11 is sent to the arithmetic device 10.

  Next, a search based on the recognition result is performed (step ST11). That is, the recognition result input unit 21 of the arithmetic device 10 sends the ID received from the speech recognition device 11 to the database search unit 23. The database search unit 23 searches the point database 12 using the ID received from the recognition result input unit 21 as a search key. Specifically, the database search means 23 sends a search key to the database read means 22, and the database read means 22 reads candidates matching the search key from the point database 12 and returns them to the database search means 23. Thus, for example, a plurality of candidates such as “◯ × store A”, “、 × store B”,. The candidates acquired by the database search unit 23 are sent to the counter 25, the distance calculation unit 29, and the screen layout switching unit 30.

  Subsequently, it is investigated whether it is a search facility (step ST12). Here, if it is determined that the facility is a search facility, the process ends. On the other hand, if it is determined that the facility search is not being performed, then the number of searched candidates n is counted (step ST13). That is, the counter 25 counts the number of candidates sent from the database search unit 23. The count value counted by the counter 25 is sent to the number comparison means 28 as a candidate number n.

  Next, it is checked whether the vehicle is traveling (step ST14). In other words, the traveling determination means 26 determines whether the vehicle is based on information indicating the presence / absence of a vehicle speed pulse sent from the vehicle speed pulse detection means 17 and information showing on / off of the side brake sent from the parking brake detection means 18. It is determined whether the vehicle is traveling, and the determination result is sent to the display number determining means 27 as traveling information.

  If it is determined in step ST14 that the vehicle is not traveling, that is, the vehicle is stopped, the candidate number s to be presented to the user when the vehicle is stopped is set as the candidate number C (step ST15). In other words, when the traveling information sent from the traveling determination unit 26 indicates that the vehicle is stopped, the display number determination unit 27 reads the candidate number s to be presented to the user when the vehicle is stopped from the memory 15, and compares it later. This is sent to the number comparison means 28 as a candidate number C used as a threshold value in the processing. Thereafter, the sequence proceeds to step ST17.

  On the other hand, if it is determined in step ST14 that the vehicle is traveling, the candidate number r to be presented to the user during traveling is set as the candidate number C (step ST16). That is, when the traveling information sent from the traveling determination unit 26 indicates traveling, the display number determination unit 27 reads out the candidate number r to be presented to the user during traveling from the memory 15 and compares it later. This is sent to the number comparison means 28 as a candidate number C used as a threshold value in the processing. Thereafter, the sequence proceeds to step ST17.

  In step ST17, the candidate number n obtained in step ST13 is compared with the candidate number C obtained in step ST15 or step ST16. That is, the number comparison means 28 compares the number n of candidates sent from the counter 25 with the number C of candidates sent from the display number determination means 27. The comparison result by the number comparison means 28 is sent to the screen layout switching means 30.

  If it is determined in step ST17 that the number of candidates n is larger than the number of candidates C, it is recognized that all the searched candidates cannot be displayed on the screen of the display device 13, and a process for adding a filtering condition is performed. (Step ST18). In the process of step ST18, as shown in FIG. 7, the number of searched candidates (20 in the example shown in FIG. 7) is displayed on the image (for example, map) displayed on the display device 13 at that time. A message prompting utterances for narrowing down (in the example shown in FIG. 7 utterances of facility brand names) is displayed. The narrowing down is not limited to the utterance of the brand name of the facility, but can also be performed by designating the search range by utterance of the prefecture name, the municipality name, or the like.

  More specifically, the screen layout switching unit 30 indicates that the comparison result sent from the number comparison unit 28 indicates that “the number of retrieved candidates n> the number of candidate C to be presented to the user”. A message notifying the number n of candidates sent from the counter 25 is displayed, and a message for prompting an utterance for narrowing down is created and sent to the image data generating unit 32. The image data generation unit 32 generates image data based on the message sent from the screen layout switching unit 30 and sends it to the display device 13. As a result, a message as shown in FIG. 7 is displayed on the display device 13. Further, additional information is added to the location database 12 so that candidates including the previous search key are searched, and the recognition dictionary of the speech recognition device 11 is switched so that a part of the facility name can be recognized. Thereafter, the sequence returns to step ST10, and the above-described processing is repeated to perform a narrowing search process.

  If it is determined in step ST17 that the candidate number n is equal to or less than the candidate number C during the narrowing search process, a candidate selection screen is displayed (step ST19). Thereafter, selection of candidates by voice operation is prohibited, and only selection of candidates by manual operation is possible. Now, “9” is set in the memory 15 as the candidate number s to be presented to the user when the vehicle is stopped, and “4” is set as the candidate number r to be presented to the user when the vehicle is traveling. If the vehicle is stopped, the display number determination unit 27 sends “9” as the candidate number C to the screen layout switching unit 30 if the vehicle is stopped. The screen layout switching unit 30 switches to a screen for displaying nine search results in accordance with the candidate number C sent from the display number determining unit 27. Then, data for displaying facility names corresponding to the nine candidates sent from the database search means 23 is generated and sent to the image data generating unit 32. The image data generation unit 32 generates image data based on the data sent from the screen layout switching unit 30 and sends it to the display device 13. As a result, as shown in FIG. 8, the display device 13 displays a message indicating that nine facilities have been searched on the map displayed at that time, and the name of the nine facilities that have been searched “○ × Mart. A to I "are displayed.

  On the other hand, if the vehicle is traveling, the number of candidates n (= 9) is larger than the number of candidates C (= 4). Therefore, after the above-described refinement condition is added (step ST18), the refinement search described above. Processing is executed. Then, if the number of candidate cases n is 4 as a result of this narrowing search process, the display number determination unit 27 sends “4” as the number of candidate cases C to the screen layout switching unit 30. The screen layout switching means 30 switches to a screen for displaying four search results according to the candidate number C sent from the display number determining means 27. Then, data for displaying the facility names corresponding to the four candidates sent from the database search means 23 is generated and sent to the image data generating unit 32. The image data generation unit 32 generates image data based on the data sent from the screen layout switching unit 30 and sends it to the display device 13. As a result, as shown in FIG. 9, the display device 13 displays a message indicating that four facilities have been searched on the map displayed at that time, and the name of the four facilities that have been searched for “Ox Mart”. A to D "are displayed.

  Next, selection by key input is performed (step ST20). That is, the user selects one facility name by operating the operation unit 3, that is, the remote controller or the touch panel. Thereby, the facility desired by the user is determined.

  As described above, according to the point search device according to the first embodiment of the present invention, the point database 12 is searched by voice recognition, and when the number n of candidate points of the searched points is larger than the predetermined candidate number C. A message prompting the utterance to narrow down the candidates is displayed together with the number of searched candidates, and when the number of candidates n is equal to or less than the predetermined number of candidates C, all candidates are displayed, and the operation unit 3 such as a remote control or a touch panel is displayed. Since it is configured to be selected by manual operation, it is possible to reduce the probability that erroneous recognition occurs. As a result, despite the simple configuration, information on a desired point can be reliably obtained from a large number of candidates obtained by speech recognition.

  Moreover, since the candidate displayed on the screen of the display device 13 can be selected by voice operation using the voice recognition device 11 while the vehicle is traveling, safety can be ensured. In addition, since the number of candidates displayed on the screen of the display device 13 is reduced when the vehicle is traveling, compared with when the vehicle is stopped, the user can perform a desired operation without gazing at the screen for a long time even when manual operation is performed. Can be selected. As a result, safety can be ensured.

  In addition, although the point search device according to the first embodiment described above is configured to perform narrowing search until the number of candidates according to stopping or traveling is reached, it can be modified as follows. That is, in the point search device, only the candidate number s to be presented to the user while stopping is defined, and if the searched candidate number n is smaller than the candidate number s, the search is performed if the vehicle is stopped. The facility names of the candidate number n are displayed, and if the vehicle is traveling, only a predetermined number (for example, the candidate number r to be presented to the user during traveling) of the retrieved candidate numbers n can be displayed.

  In this case, the display number determination unit 27 sends “4”, which is the number of candidates to be presented to the user during traveling, to the screen layout switching unit 30. The screen layout switching unit 30 switches to a screen for displaying four search results according to the value sent from the display number determining unit 27. Then, four candidates among the nine candidates sent from the database search means 23 are selected. At this time, the screen layout switching unit 30 sorts the distances to the candidates (facility) sent from the distance calculation unit 29 in the order of short distance, and selects four facilities in the order from the current position. Then, data for displaying the selected four facility names is generated and sent to the image data generation unit 32. The image data generation unit 32 generates image data based on the data sent from the screen layout switching unit 30 and sends it to the display device 13. As a result, as shown in FIG. 10, four facility names “○ × Mart A to D” are displayed on the display device 13 in the order closest to the message indicating that nine facilities have been searched on the map. Is done.

  According to this configuration, the facility search process can be simplified. In addition, even if there are many candidates, the candidates in the vicinity that are considered important are displayed with priority, so that a reliable operation can be achieved while viewing the display on the screen.

It is a block diagram which shows the structure of the point search apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows roughly the structure of the remote control operation part of the remote control which comprises the operation part shown in FIG. It is a figure which shows the example of the remote control operation screen in case the remote control which comprises the operation part shown in FIG. 1 is operated. It is a figure which shows the example of the touchscreen operation screen in case the touchscreen which comprises the operation part shown in FIG. 1 is operated. It is a block diagram which shows the detailed structure of the arithmetic unit shown in FIG. It is a flowchart which shows operation | movement of the point search apparatus which concerns on Embodiment 1 of this invention. In the point search apparatus which concerns on Embodiment 1 of this invention, it is a figure which shows the example of a display when the number of searched candidates is larger than the set number of candidates. In the point search apparatus which concerns on Embodiment 1 of this invention, it is a figure which shows the example of a display during a stop in case the number of searched candidates is less than the set number of candidates. In the point search apparatus which concerns on Embodiment 1 of this invention, it is a figure which shows the example of a display during driving | running | working when the number of searched candidates is less than the set number of candidates. In the modification of the point search device concerning Embodiment 1 of this invention, it is a figure which shows the example of a driving | running | working of the number of searched candidate cases.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Car navigation unit, 2 Microphone, 3 Operation part, 10 Arithmetic unit, 11 Voice recognition apparatus, 12 point database, 13 Display apparatus, 14 Operation signal receiver, 15 Memory, 16 Current position detection means, 17 Vehicle speed pulse detection means, 18 parking brake detection means, 21 recognition result input means, 22 database reading means, 23 database search means, 25 counter, 26 running determination means, 27 display number determination means, 28 number comparison means, 29 distance calculation means, 30 screen layout Switching means, 31 button selection means, 32 screen data generation section, 40 remote control operation section, 41 speech key, 42 candidate selection key, 131, 132, 135, 136 buttons.

Claims (6)

A display device for displaying information;
A speech recognition device for recognizing spoken speech;
A point database that stores information about points;
Database search means for searching the point database according to a recognition result of the voice recognition device;
If the number of candidate locations searched by the database search means is greater than a predetermined value, a message prompting utterance to narrow down candidates is displayed on the display device, and if the number of candidate cases is less than the predetermined value, all candidates Control means for displaying on the display device;
A point search device comprising: selection means for selecting a candidate displayed on the display device under control of the control means by either manual operation or voice operation using the voice recognition device.   2. The point according to claim 1, wherein the selection means prohibits the selection of candidates displayed on the display device by the control of the control means by voice operation and allows only selection by manual operation. Search device. It is provided with a traveling determination means for determining whether the vehicle is traveling or stopped,
The selection means is
2. The point search device according to claim 1, wherein when the traveling determination unit determines that the vehicle is traveling, the candidate displayed on the display device is selected by a voice operation using a speech recognition device. . It is provided with a traveling determination means for determining whether the vehicle is traveling or stopped,
The control means
The point search device according to claim 1, wherein when the traveling determination unit determines that the vehicle is stopped, a value larger than that determined when the vehicle is traveling is used as the predetermined value. A current position detecting means for detecting the current position;
The control means
If the number of candidate locations searched by the database search means is greater than a predetermined value, the distance from the current position detected by the current position detection means to the location searched by the database search means is calculated, and the distance is The point search device according to claim 1, wherein sorting is performed in a short order.   5. The point search device according to claim 4, wherein the control unit displays the point candidates searched by the database search unit on the display device in the sorted order.

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