JP2007255927A - Navigation device, navigation method, and navigation program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device, a navigation method, and a navigation program for performing leading and guidance to another installation of the same kind even where an installation set as a destination is unreachable within available time. <P>SOLUTION: Information such as the positions of installations, their kinds, and available time, are stored as installation data 13 in a storage part 11. A route from the position of an automobile at present to a destination and time when it arrives at the destination are calculated based on information obtainable from a GPS reception part 2, a VICS reception part 3, etc. If the arrival time at the destination is outside the available time, installations of the same kind as the destination are searched for and displayed on a display part 7 to perform leading and guidance with an installation selected by a user used as a new destination. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a navigation device, a navigation method, and a navigation program that perform guidance and guidance to a set destination and determine whether or not the facility at the set destination can be reached within an available time.

  2. Description of the Related Art An automobile navigation device that can identify the position of an automobile and guide an appropriate route to a destination set by a user is used. The navigation apparatus uses a GPS (Global Positioning System) that specifies the position of a vehicle based on radio waves transmitted from an artificial satellite. There are a plurality of GPS satellites, and the navigation apparatus receives GPS signals from the plurality of satellites, measures the time difference between the received GPS signals, and identifies the position of the vehicle based on the measured time difference. It is. In recent years, navigation devices are mounted on devices such as mobile phones.

  When the user sets a destination, the navigation device has a function of calculating a route from the current position to the destination and calculating and displaying an arrival time when heading to the destination through this route. When calculating the arrival time, the calculation is performed based on information such as the distance from the current position to the destination and the speed at which the calculated route can be traveled.

In Patent Document 1, a facility search condition is received and stored in advance while the vehicle is stopped, and a facility that satisfies the search condition is specified by specifying the search condition stored in advance by the user while the vehicle is traveling. Or the navigation apparatus for vehicles which can be searched as a destination is proposed. This vehicle navigation device eliminates the need for notifying the user of all selected elements, eliminates the need for the user to make detailed settings for waypoints or destinations while the vehicle is traveling, and provides detailed user-desired conditions. Even when the vehicle is traveling, it is possible to set the waypoints or destinations that satisfy the conditions.
JP 2004-77180 A

  However, if the destination set by the user is a facility having a predetermined available time, such as a restaurant, the arrival time will be after the available time ends or before the start even if guidance and guidance are given to this facility. If so, there is a problem that the user cannot use this facility.

  In the vehicle navigation device described in Patent Document 1, the available time can be included as a search condition when searching for a facility. However, when the user directly inputs a destination, the above-described problem occurs. appear. Further, even if it is predicted that the user can arrive within the available time at the time of the search, there is a possibility that the arrival time may be delayed due to traffic conditions such as traffic jams and cannot arrive within the available time.

  The present invention has been made in view of such circumstances, and an object of the present invention is to calculate the time of arrival at a destination set by the user, and the destination has a predetermined available time. If there is, it is determined whether or not the calculated arrival time is within the available time of the destination, and if the arrival time is not within the available time, a facility of the same type as the destination is searched and displayed. Accordingly, it is an object of the present invention to provide a navigation device, a navigation method, and a navigation program capable of guiding and guiding other facilities of the same type even when they cannot arrive within the facility availability time.

  Another object of the present invention is to calculate the route from the current position to the destination and display the destination, the route to the destination and the searched facility, so that the user can An object is to provide a navigation device, a navigation method, and a navigation program that can be easily set and changed.

  Another object of the present invention is to obtain traffic information and calculate the arrival time based on the traffic information so that the arrival time can be calculated more accurately. A navigation apparatus, a navigation method, and a navigation program are provided.

  Another object of the present invention is that the arrival time is calculated every predetermined time, so that accurate arrival can be achieved even when traffic conditions such as road congestion occur. A navigation device, a navigation method, and a navigation program capable of calculating time are provided.

  Another object of the present invention is to select one facility from facilities searched as the same type of facility as the destination, and to set the selected facility as the destination. An object of the present invention is to provide a navigation device, a navigation method, and a navigation program capable of easily changing a destination when the destination cannot be reached within the available time of the destination.

  Another object of the present invention is to increase the user's schedule by searching for facilities within a predetermined distance from the destination when searching for the same type of facility as the destination. An object is to provide a navigation device, a navigation method, and a navigation program capable of changing a destination without changing the destination.

  Another object of the present invention is that when searching for a facility of the same type as the destination, the facility is configured to search for a facility that can be reached within the available time from the current location. It is an object of the present invention to provide a navigation device, a navigation method, and a navigation program that can perform guidance and guidance so that the user can use the device.

  Another object of the present invention is to search for a predetermined number of facilities when searching for facilities of the same type as the destination, so that the user can easily change the destination. A navigation apparatus, a navigation method, and a navigation program are provided.

  Another object of the present invention is to provide a navigation device in which the user can easily change the destination by displaying the facilities in order from the destination when displaying the searched facilities, A navigation method and a navigation program are provided.

  A navigation device according to a first aspect of the present invention calculates position acquisition means for acquiring information relating to the position of a moving body, acceptance means for accepting settings relating to a destination, and time of arrival at the destination accepted by the acceptance means. In a navigation apparatus that includes arrival time calculation means and performs guidance guidance to a destination, facility information storage means for storing information related to the location, type, and available time of the facility, and the destination received by the reception means In the case of the facility stored in the facility information storage means, it is determined whether the arrival time calculated by the arrival time calculation means is within the available time of the destination stored in the facility information storage means. If the determination means and the determination means determine that it is not within the available time, the same type as the destination received by the reception means from the facility stored by the facility information storage means Search means for searching the set, characterized by comprising a display means for displaying a facility the search means searches.

  The navigation device according to a second aspect of the present invention comprises route calculation means for calculating a route from the position of the moving body acquired by the position acquisition means to the destination received by the reception means, and the display means includes The destination received by the receiving means, the route calculated by the route calculating means, and the facility searched by the searching means are displayed.

  The navigation device according to a third aspect of the present invention comprises traffic information acquisition means for acquiring traffic information, and the arrival time calculation means is a time of arrival at a destination according to the traffic information acquired by the traffic information acquisition means. Is calculated.

  Further, the navigation device according to the fourth invention is characterized in that the arrival time calculation means calculates the arrival time every predetermined time.

  The navigation device according to a fifth aspect of the invention is characterized in that the reception unit can receive a facility selected from the facilities searched by the search unit as a setting related to a destination.

  The navigation device according to a sixth aspect is characterized in that the search means searches for facilities within a predetermined distance from the destination received by the reception means.

  The navigation device according to a seventh aspect is characterized in that the search means searches for facilities that can be reached within the available time.

  The navigation device according to the eighth invention is characterized in that the search means searches for a predetermined number of facilities.

  In the navigation device according to the ninth aspect of the invention, the display means displays the facilities searched by the search means in order from the destination received by the receiving means.

  The navigation method according to the tenth aspect of the invention obtains information related to the position of the moving body, accepts settings related to the destination, calculates the time of arrival at the accepted destination, and provides guidance to the destination. In the navigation method to be performed, information related to the location, type and available time of the facility is stored, and if the received destination is the stored facility, whether the calculated arrival time is within the available time of the destination If it is determined that it is not within the available time, a facility of the same type as the destination received from the stored facility is searched, and the searched facility is displayed.

  The navigation method according to the eleventh invention is characterized in that a route from the acquired position of the moving body to the received destination is calculated, and the received destination, the calculated route, and the searched facility are displayed. .

  A navigation method according to a twelfth aspect of the present invention is characterized in that traffic information is acquired and a time at which the destination arrives is calculated according to the acquired traffic information.

  The navigation method according to the thirteenth aspect of the invention is characterized in that the time of arrival at the accepted destination is calculated every predetermined time.

  The navigation method according to the fourteenth invention is characterized in that a facility selected from the searched facilities is received as a setting related to the destination.

  The navigation method according to the fifteenth invention is characterized in that, when searching for a facility of the same type as the destination received from the stored facility, the facility within a predetermined distance from the received destination is searched. To do.

  The navigation method according to the sixteenth aspect is characterized in that, when searching for a facility of the same type as the destination received from the stored facility, the facility that can be reached within the available time is searched.

  The navigation method according to the seventeenth aspect is characterized in that when a facility of the same type as the destination received from the stored facility is searched, a predetermined number of facilities are searched.

  The navigation method according to the eighteenth aspect of the invention is characterized in that the searched facilities are displayed in order from the closest destination.

  Further, the navigation program according to the nineteenth aspect of the invention causes the processing device to acquire information related to the position of the moving body, accept settings related to the destination, and calculate the time of arrival at the accepted destination. In a navigation program that provides guidance to the ground, calculated when the processing device stores information on the location, type, and available time of the facility, and the accepted destination is a stored facility. Determine whether the arrival time is within the available time of the destination, and if it is determined that it is not within the available time, search the facility for the same collection as the destination received from the stored facility The searched facility is displayed.

  Further, the navigation program according to the twentieth invention causes the processing device to calculate a route from the acquired position of the moving body to the accepted destination, and the accepted destination, the calculated route, and the searched The facility is displayed.

  A navigation program according to a twenty-first aspect is characterized in that a processing device acquires traffic information and calculates a time of arrival at an accepted destination according to the acquired traffic information.

  A navigation program according to a twenty-second aspect is characterized in that the processing device calculates a time of arrival at an accepted destination at predetermined time intervals.

  A navigation program according to the twenty-third invention is characterized in that the processing apparatus accepts a facility selected from searched facilities as a setting related to a destination.

  A navigation program according to a twenty-fourth aspect of the present invention provides a facility within a predetermined distance from a received destination when the processing device searches for a facility of the same type as the destination received from the stored facility. It is made to search.

  The navigation program according to the twenty-fifth aspect of the invention causes the processing device to search for a facility that can be reached within the available time when searching for a facility of the same type as the destination received from the stored facility. Features.

  A navigation program according to a twenty-sixth aspect is characterized in that when a processing device is searched for a facility of the same type as a destination received from a stored facility, a predetermined number of facilities are searched. To do.

  A navigation program according to a twenty-seventh aspect of the invention is characterized in that the processing facility displays the searched facilities in order from the accepted destination.

  In the present invention, information related to the location, type and available time of the facility is stored in advance, the time of arrival at the destination set by the user is calculated, and the calculation is performed when the destination is the stored facility. It is determined whether the received arrival time is within the available time of the destination. As a result of the determination, if the arrival time is not within the available time of the destination, a facility of the same type as the destination is searched from the stored facilities and displayed. The user can select another facility that can arrive within the available time from the displayed facility and change the destination.

  In the present invention, a route from the current location to the destination is calculated, and the destination, the route to the destination, and the searched facility are displayed. The user can select the facility to be set as the destination by comparing the displayed information.

  Moreover, in this invention, traffic information is acquired and the time to arrive at the destination is calculated based on traffic information. For example, if the arrival time is calculated only from the distance to the destination and the moving speed, there is a possibility that the destination cannot be reached at the arrival time calculated due to traffic conditions such as traffic jams. By calculating the time, a more accurate arrival time can be calculated.

  In the present invention, the calculation of the time of arrival at the destination is repeatedly performed every predetermined time. Since the arrival time is updated every predetermined time, an accurate arrival time can be calculated even when the moving speed changes due to traffic conditions such as traffic jams.

  Further, in the present invention, the facility of the same type as the destination is searched and displayed, and the facility selected by the user from the displayed facility is accepted and set as a new destination. The user can easily change the destination to the same type of facility.

  Further, in the present invention, when searching for a facility of the same type as the destination, the facility within a predetermined distance from the destination is searched. For example, after the user arrives at the set destination, the user may go to the next destination, and the time when the user arrives at the next destination by changing the new destination to a facility away from the original destination. May be delayed. This problem can be avoided by displaying facilities within a predetermined distance from the original destination.

  Further, in the present invention, when searching for a facility of the same type as the destination, a facility that can be reached within the available time is searched. The time of arrival at each facility can be calculated by the same method as the method of calculating the time of arrival at the destination. By calculating the arrival time of each facility in advance and displaying only the facilities that can be reached, the user can select a facility only from the facilities that can arrive and change the destination.

  In the present invention, when searching for the same type of facility as the destination, a predetermined number of facilities are searched, and if this number is exceeded, the search is not performed. If there are too many facilities displayed as new destination candidates, there is a possibility that the user may lose their choice. For example, a facility that is displayed with priority given to the facility close to the original destination. The number of users is limited so that the user can easily select.

  In the present invention, a facility of the same type as the destination is searched for, and the search results are displayed in order from the destination. Thereby, when the user selects a new destination from a plurality of facilities, the selection can be easily performed.

  In the first invention, the tenth invention, and the nineteenth invention, information on the location, type, and available time of the facility is stored in advance, the time of arrival at the destination set by the user is calculated, and the destination If the facility has a predetermined available time, it is determined whether the calculated arrival time is within the available time of the destination. If the arrival time is not within the available time, the same as the destination By configuring the type of facility to be searched and displayed, the user can select another facility of the same type and change the destination even when the facility cannot be reached within the available time of the facility. Therefore, guidance and guidance can be performed to a facility that can arrive within the available time, and the convenience of the navigation device, the navigation method, and the navigation program can be improved.

  Further, in the case of the second invention, the eleventh invention and the twentieth invention, by calculating the route from the current position to the destination and displaying the destination, the route to the destination and the searched facility, Since the user can select the facility to be set as the destination by comparing these displayed information, it is easy to set and change the destination, and the navigation device and the navigation method for setting the destination In addition, the convenience of the navigation program can be improved.

  In the case of the third invention, the twelfth invention and the twenty-first invention, the traffic information is acquired and the time of arrival at the destination is calculated based on the traffic information. The arrival time is not greatly deviated by traffic conditions such as traffic jams, and the arrival time can be calculated more accurately. Therefore, the calculation accuracy of the arrival time of the navigation device, the navigation method, and the navigation program can be improved.

  According to the fourth, thirteenth and twenty-second inventions, the arrival time is updated every predetermined time by calculating the time to arrive at the destination repeatedly every predetermined time. Even when the moving speed changes due to traffic conditions such as traffic jams, the arrival time can be calculated accurately, so that the arrival time calculation accuracy of the navigation device, navigation method and navigation program can be improved.

  Further, in the case of the fifth invention, the fourteenth invention, and the twenty-third invention, it is possible to select one facility from the facilities searched as the same type of facility as the destination and set the selected facility as the destination Therefore, when the destination cannot be reached within the available time, the destination can be easily changed. Therefore, the convenience of the navigation device, the navigation method, and the navigation program when setting the destination is improved. Can be improved.

  According to the sixth invention, the fifteenth invention, and the twenty-fourth invention, when searching for facilities of the same type as the destination, by searching for facilities within a predetermined distance from the destination, Since it is possible to change the destination without significantly changing the user's schedule when heading to the next destination after arriving at the set destination, a navigation device for setting the destination, The convenience of the navigation method and the navigation program can be improved.

  According to the seventh, sixteenth and twenty-fifth inventions, when searching for facilities of the same type as the destination, by searching for facilities that can be reached within the available time from the current location, Since the user can select a facility only from the facilities that can be reached and change the destination, the user can be guided and guided so that the user can use the facility without fail. The convenience of the navigation device, the navigation method, and the navigation program Can be improved.

  Further, in the case of searching for the same type of facility as the destination in the case of the eighth invention, the seventeenth invention, and the twenty-sixth invention, if a predetermined number of facilities are searched and this number is exceeded, By adopting a configuration that does not perform a search, the number of facilities to be displayed can be limited, for example, by giving priority to facilities that are close to the original destination, and user selection can be facilitated. The convenience of the device, the navigation method, and the navigation program can be improved.

  According to the ninth, eighteenth, and twenty-seventh inventions, when a searched facility is displayed, the facility is displayed in the order from the destination in order to display a new facility from a plurality of facilities. This makes it easy to make a selection when selecting a destination, so that the convenience of the navigation device, the navigation method, and the navigation program when setting the destination can be improved.

  Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof. FIG. 1 is a block diagram showing a configuration of a navigation apparatus according to the present invention. In the figure, reference numeral 1 denotes a CPU (Central Processing Unit) that controls each part of the navigation device and performs various arithmetic processes. The CPU 1 is based on the position information given from the GPS receiver 2, the vehicle speed pulse given from the vehicle speed pulse detector 4, the traveling direction given from the gyro sensor 5, and the acceleration given from the acceleration sensor 6. The position is calculated and specified. A route from the position of the vehicle to the destination based on traffic information given from a VICS (Vehicle Information and Communication System) receiving unit 3 and map data 12 stored in the storage unit 11 In addition, the time of arrival at the destination is calculated, and guidance and guidance to the destination are performed.

  The navigation device also includes an operation unit 9 provided with switches and buttons for the user to operate, a display unit 7 using a liquid crystal display on which a map or a message to the user is displayed, and a voice message to the user. A voice output unit 8 or the like for output is provided, and the user's operation content on the operation unit 9 is given to the CPU 1. The CPU 1 calculates the route and arrival time according to the operation content, and the display unit 7 and the voice output. By outputting a message from the unit 8, guidance and guidance to the destination are performed. In addition, the operation part 9, the display part 7, and the audio | voice output part 8 are distribute | arranged to the driver's seat vicinity in the vehicle interior.

  The GPS receiver 2 has a GPS antenna (not shown) that is disposed on the top or ceiling of the dashboard of the automobile and receives a GPS signal transmitted from an artificial satellite for GPS. The GPS antenna is a cable. Is connected to the GPS receiver 2. By measuring the time difference of GPS signals received from a plurality of artificial satellites received by the GPS antenna, the GPS receiving unit 2 identifies the position of the vehicle in the longitude and latitude directions based on the measured time difference and gives it to the CPU 1 It is like that.

  The vehicle speed pulse detection unit 4 gives the CPU 1 the detection result of the vehicle speed pulse, which is information related to the traveling speed of the automobile. The vehicle speed pulse is output every time the automobile travels a certain distance, and by detecting this, the CPU 1 can calculate the traveling speed of the automobile. The gyro sensor 5 outputs a voltage corresponding to the acceleration applied to the piezoelectric body, and calculates the relative traveling direction of the automobile by detecting the acceleration applied to the piezoelectric body when the automobile changes direction. The detected relative traveling direction is given to the CPU 1. The acceleration sensor 6 detects acceleration applied to the automobile. By detecting the longitudinal acceleration of the automobile, the CPU 1 can calculate the relative traveling speed of the automobile.

  The VICS receiving unit 3 receives a beacon or FM multiplex broadcast transmitted from a transmitter installed on the road, acquires information relating to traffic such as traffic jams, accidents, traffic restrictions, and parking lots, and sends it to the CPU 1. To give. As a result, when calculating the route to the destination, the CPU 1 can calculate the route so as to bypass the road where traffic congestion or traffic regulation occurs.

  The CPU 1 performs a map matching process for collating information provided from the GPS receiver 2, the vehicle speed pulse detector 4, the gyro sensor 5, the acceleration sensor 6, and the like with the map data 12 to identify the final vehicle position. I have to do it. The map data 12 used for the map matching process is stored in the storage unit 11, and the CPU 1 reads out necessary data from the storage unit 11 for processing. The storage unit 11 is, for example, a DVD drive that reads a DVD in which the map data 12 is recorded, or a hard disk drive in which the map data 12 is recorded.

  Further, the CPU 1 can store in the memory 10 detection results of various sensors, calculation results for specifying a position, setting information of a navigation device set by a user, and the like. Furthermore, a program executed by the CPU 1 is stored in the memory 10 in advance, and is read from the memory 10 and executed by the CPU 1 when the navigation apparatus is activated. Therefore, the memory 10 is preferably a nonvolatile memory, and for example, a flash memory can be used. In addition, the navigation device is provided with a clock unit 14 that clocks the current time, and the clock unit 14 provides the current time to the CPU 1.

  FIG. 2 is a schematic diagram illustrating a configuration example of the map data 12 included in the navigation device according to the present invention, and illustrates a configuration example of information (road data) related to a road included in the map data 12. The road data included in the map data is composed of nodes n1, n2,... Indicating intersections and branch points and links l1, l2,... Connecting the nodes n1, n2,. Each of the links l1, l2,... Has attributes such as a unique number (link ID) for identifying the link, a link length, a road type, a road width, a charge / free distinction, and traffic restrictions. Furthermore, a VICS ID associated with the VICS information is given. Also, the nodes n1, n2,... Are given unique numbers (node IDs) for identifying the nodes, traffic restrictions on connected links, lane information, and the like.

  After specifying the position of the automobile, the CPU 1 calculates the optimum route to the destination set by the user based on the information given from the VICS receiving unit 3 and the map data 12. The route is calculated by using the information of the nodes n1, n2,... And the links l1, l2,. In this way, the links l1, l2,. At this time, a route is calculated based on traffic restriction information such as entry prohibition and one-way traffic so as not to contradict traffic restrictions, and the road cost is calculated using traffic information received by the VICS receiver 3. By changing the value of, a more optimal route can be calculated.

  After calculating the route, the CPU 1 determines the distance from the current car position specified by the map matching process to the destination designated by the user, information such as the running speed of the car, and the current time measured by the time measuring unit 14. Based on the above, the estimated time of arrival at the destination is calculated. As the traveling speed used at this time, one or a plurality of speeds such as a current traveling speed, an average speed at a certain distance, a speed set by a user, or a speed limit of each road can be used.

  Further, the storage unit 11 stores, as facility data 13, data related to facilities that can be designated as a destination by the user. FIG. 3 is a configuration example of the facility data 13 included in the navigation device according to the present invention. The facility data 13 stores a facility name, a facility position (for example, latitude and longitude), a facility type (genre), and a facility available time. In addition to these, other information such as a facility address and a telephone number may be stored. The CPU 1 determines whether or not it can arrive within the available time of the facility set as the destination by comparing the calculated arrival time to the destination and the available time of the facility data 13. You can do that.

  FIG. 4 is a flowchart showing the procedure of the navigation process performed by the CPU 1 of the navigation device according to the present invention. The CPU 1 receives the destination input by the user operating the operation unit 9 (step S1), and starts the navigation process. The CPU 1 uses the position information given from the GPS receiver 2, the vehicle speed pulse given from the vehicle speed pulse detector 4, the traveling direction given from the gyro sensor 5, the acceleration given from the acceleration sensor 6, and the map data 12. Based on the current vehicle position (step S2), the VICS receiver 3 acquires traffic information (step S3), and calculates the route to the accepted destination (step S4).

  Next, the arrival time to the destination is calculated based on the calculated route to the destination and information such as the current time measured by the time measuring unit 14 (step S5). Furthermore, it is checked whether or not the destination received from the user is a facility included in the facility data 13 (step S6). If the destination is included in the facility data 13 (S6: YES) Then, the available time of the destination facility is read from the facility data 13 (step S7). Next, the available time read in step S7 is compared with the arrival time calculated in step S5 to check whether the arrival time is within the available time (step S8). If the arrival time is not within the available time (S8: NO), a message is displayed on the display unit 7 to allow the user to select whether or not to change the destination (step S9).

  FIG. 5 is a display example of a message prompting selection of whether or not to change the destination. The display unit 7 displays, for example, the facility name of the destination set by the user as a message, displays the available time of the facility, and displays the calculated arrival time. At this time, a voice message may be simultaneously displayed by the voice output unit 8. The user can select either “Yes” or “No” by operating the operation unit 9.

  When the change of the destination is selected by the user (S9: YES), the destination change process is performed (step S10), and the guidance process for the changed destination is performed (step S11). Further, when the destination is not included in the facility data 13 at step S6 (S6: NO), or when the arrival time is within the available time of the destination at step S8 (S8: YES), the destination Since there is no need to change the information, guidance processing for the accepted destination is performed (step S11). In addition, the guidance process performed in step S11 is performed until it arrives at the destination.

  FIG. 6 is a flowchart showing the procedure of the guidance process performed in step S11 of FIG. The CPU 1 has a timer (not shown) for measuring a predetermined time such as 1 minute or 30 seconds. When performing the guidance process, the CPU 1 first resets the timer (step S31), The timer starts a predetermined time (step S32).

  Next, the current vehicle position is identified based on the information given from the GPS receiver 2, the vehicle speed pulse detector 4, the gyro sensor 5 and the acceleration sensor 6 and the map data 12 (step S33). It is checked whether or not the position of the automobile is the destination (step S34). If the current vehicle position is not the destination (S34: NO), the VICS receiving unit 3 acquires traffic information (step S35), and updates the guidance display displayed on the display unit 7 (step S36). At this time, voice guidance by the voice output unit 8 may be performed. Thereafter, it is checked whether or not a predetermined time has elapsed by a timer included in the CPU 1 (step S37). If the predetermined time has not elapsed (S37: NO), the process returns to step S33, the current vehicle position is specified, traffic information is acquired, etc., and the guidance display on the display unit 7 is updated. Repeat guidance and guidance.

  If the predetermined time has elapsed in step S37 (S37: YES), the arrival time at the destination is calculated (step S38), and it is checked whether the arrival time is within the available time of the destination (step S38). S39). If the arrival time is not within the available time (S39: NO), a message similar to that shown in FIG. 5 is displayed on the display unit 7 to allow the user to select whether or not to change the destination (step S40). ). When the change of the destination is selected by the user (S40: YES), the destination is changed (step S41). If the arrival time is within the available time in step S39 (S39: YES), if the user has not selected to change the destination in step S40 (S40: NO), and the destination in step S41 After performing the change process, the process returns to step S31, the above process is repeated, and if the current vehicle position has reached the destination in step S34 (S34: YES), the guidance process is terminated. If the destination change process is not selected once in step S40 or step S9 in FIG. 4, the message shown in FIG. 5 is not displayed thereafter, and the process always goes to step S31 in step S40. It is assumed that a return process is performed.

  FIG. 7 is a flowchart showing the procedure of the destination change process performed in step S10 of FIG. 4 and step S41 of FIG. In the destination change process, first, the CPU 1 performs a facility search process described later (step S51), and creates a candidate list that is a list of facilities of the same type as the destination. In the candidate list, information on facilities of the same type is arranged in order from the shortest distance from the destination. This candidate list is displayed on the display unit 7 (step S52), and the user selects a new destination. Prompt. At this time, the display unit 7 includes the candidate location list, the current vehicle position, the destination before the change, the route from the current vehicle position to the destination before the change, the facilities included in the candidate location list, etc. Is displayed on the map, and the facility selected by the user is blinked to make the selection easier.

  Thereafter, it is checked whether or not any one facility has been selected as a new destination (step S53). If no facility has been selected (S53: NO), the process returns to step S52 to display a candidate site list. And wait until the facility is selected. If a facility is selected (S53: YES), the selected facility is set as a new destination (step S54), and the destination change process is terminated.

  FIG. 8 is a flowchart showing the procedure of the facility search process performed in step S51 of FIG. 7, and FIG. 9 is an example of a candidate site list created by the facility search process. In the facility search process, first, the CPU 1 initializes a variable i (step S71). Note that the area of the variable i is secured in the register of the CPU 1 or the memory 10.

  Next, a facility closest to the destination and having the same type as the destination is searched from the facility data 13 (step S72). Step S72 is repeated, but the facility once searched is excluded from the search target in the next search. After the facility is searched, the position of the searched facility is compared with the position of the destination, and it is checked whether or not the searched facility is a facility within a predetermined range from the destination (step S73). (S73: YES), the route from the current car position to the searched facility is calculated (step S74), and the arrival time when this route is passed is calculated (step S75).

  Next, the available time of the found facility is read from the facility data 13 (step S76), and it is checked whether or not the calculated arrival time is within the available time (step S77), and the arrival time is within the available time. In the case of (S77: YES), the found facility is added to the candidate site list (step S78). For example, as shown in FIG. 9, the candidate site list includes information such as the name of the searched facility, the available time of the facility, and the arrival time calculated at step S75. They are arranged in the order in which they are set, that is, in the order closer to the set destination.

  After the facility is added to the candidate site list, the variable i is incremented (step S79), and it is checked whether or not the value of the variable i is smaller than a predetermined number (step S80). If the arrival time at the facility searched in step S77 is not within the available time (S77: NO) and if the value of variable i is smaller than the predetermined number in step S80 (S80: YES), the process returns to step S72. Search for another facility. If the facility searched in step S73 is not within the predetermined range from the destination (S73: NO), the facility search process is terminated because there are no more candidates for change. If the value of variable i is greater than or equal to the predetermined number in step S80 (S80: NO), the facility search process is terminated.

  In the navigation device configured as described above, the location, type, and available time of the facility are stored in the storage unit 11 as the facility data 13, and the arrival time at the destination cannot be calculated to arrive within the available time. In this case, a facility of the same type as the destination is searched from the facility data 13, a candidate site list is created, and the candidate site list is displayed on the display unit 7, whereby the user selects another facility from the candidate site list. It can be set as a new destination and can be guided and guided to a facility that can arrive within the available time. In addition, when calculating the route to the destination and the time of arrival at the destination, it is possible to calculate a more optimal route by considering the traffic information received by the VICS receiver 3, and more accurate arrival time Can be calculated. Further, in the guidance process, it is possible to cope with changes in traffic conditions such as traffic jams by repeatedly calculating the time of arrival at the destination every predetermined time. In addition, by setting the facility to be searched for as a candidate for change to a facility located within a predetermined range from the original destination, the user can move to the next destination after arriving at the set destination. The destination can be changed without greatly changing the schedule. In addition, by setting the facilities displayed as candidates only to the facilities that can arrive within the available time, guidance and guidance can be performed so that the user can use the facilities reliably. Further, when the number of facilities added to the candidate site list exceeds a predetermined number, the facility search process is terminated, so that the user can easily select the facility. In addition, by arranging the facilities in the candidate list in the order from the destination and displaying them, it is possible to facilitate selection when the user selects a new destination from a plurality of facilities. Therefore, the convenience of the navigation device can be improved.

  In the present embodiment, the navigation device includes the VICS receiving unit 3 to receive traffic information, and according to this, the route to the destination and the time to arrive at the destination are calculated. However, the configuration is not limited to this, and the VICS receiving unit 3 may not be provided. Further, although the facility search is performed only for facilities within a predetermined range from the destination, the present invention is not limited to this, and a configuration in which a search range is not provided may be used. Further, instead of performing a search within a predetermined range from the destination, a configuration may be used in which a facility within the predetermined range is searched from the current position of the automobile. Moreover, although it was set as the structure which complete | finishes the search of a facility when it exceeds the predetermined number defined beforehand, it is not restricted to this, You may make the completion | finish conditions of a search another condition. Moreover, although it was set as the structure which displays the searched facility in the order close to the destination, it is not restricted to this, It displays in the alphabetical order of a facility name, or displays it in the order which has room by the closing time of a facility. For example, the display may be performed in another order. Moreover, the latest facility data may be acquired by the VICS receiving unit 3 or other means, and the facility data may be updated every predetermined period.

It is a block diagram which shows the structure of the navigation apparatus which concerns on this invention. It is a schematic diagram which shows the structural example of the map data which the navigation apparatus concerning this invention has. It is a structural example of the facility data which the navigation apparatus which concerns on this invention has. It is a flowchart which shows the procedure of the navigation process which CPU of the navigation apparatus concerning this invention performs. It is a display example of a message that prompts selection of whether or not to change the destination. It is a flowchart which shows the procedure of the guidance process performed in step S11 of FIG. It is a flowchart which shows the procedure of the destination change process performed in FIG.4 S10 and FIG.6 S41. It is a flowchart which shows the procedure of the facility search process performed in step S51 of FIG. It is an example of a candidate site list created by facility search processing.

Explanation of symbols

1 CPU (arrival time calculation means, determination means, search means, route calculation means)
2 GPS receiver (position acquisition means)
3 VICS receiver (traffic information acquisition means)
4 Vehicle speed pulse detection unit 5 Gyro sensor 6 Acceleration sensor 7 Display unit (display means)
8 Audio output part 9 Operation part (accepting means)
10 memory 11 storage unit (facility information storage means)
12 Map data 13 Facility data 14 Timekeeping section

Claims (27)

A position acquisition means for acquiring information relating to the position of the moving body, a reception means for receiving a setting relating to the destination, and an arrival time calculation means for calculating a time of arrival at the destination received by the reception means. In a navigation device that provides guidance to the ground,
Facility information storage means for storing information related to the location, type and available time of the facility;
When the destination received by the reception means is a facility stored in the facility information storage means, the arrival time calculated by the arrival time calculation means is the available time of the destination stored in the facility information storage means Determining means for determining whether or not
A search means for searching for a facility of the same type as the destination received by the reception means from the facilities stored in the facility information storage means when the determination means determines that it is not within the available time;
A navigation device comprising: display means for displaying the facility searched by the search means. A route calculation unit that calculates a route from the position of the moving body acquired by the position acquisition unit to the destination received by the reception unit;
The navigation device according to claim 1, wherein the display means displays a destination received by the receiving means, a route calculated by the route calculating means, and a facility searched by the searching means. A traffic information acquisition means for acquiring traffic information is provided.
The navigation device according to claim 1 or 2, wherein the arrival time calculation means calculates a time of arrival at a destination according to the traffic information acquired by the traffic information acquisition means.   The navigation device according to any one of claims 1 to 3, wherein the arrival time calculation means calculates the arrival time every predetermined time.   The navigation device according to any one of claims 1 to 4, wherein the reception unit is capable of receiving a facility selected from the facilities searched by the search unit as a setting related to a destination.   The navigation device according to any one of claims 1 to 5, wherein the search unit searches for a facility within a predetermined distance from the destination received by the reception unit.   The navigation device according to any one of claims 1 to 6, wherein the search means searches for facilities that can be reached within an available time.   The navigation device according to any one of claims 1 to 7, wherein the search means searches for a predetermined number of facilities.   The navigation device according to any one of claims 1 to 8, wherein the display unit displays the facilities searched by the search unit in the order from the destination received by the reception unit. In a navigation method for obtaining information related to the position of a moving object, receiving a setting related to a destination, calculating a time of arrival at the received destination, and performing guidance guidance to the destination,
Stores information related to facility location, type and available time,
If the accepted destination is a memorized facility, determine whether the calculated arrival time is within the available time of the destination,
If it is determined that it is not within the available time, search the facility of the same type as the destination received from the stored facility,
A navigation method characterized by displaying searched facilities. Calculate the route from the acquired position of the moving body to the accepted destination,
The navigation method according to claim 10, wherein the received destination, the calculated route, and the searched facility are displayed. Get traffic information,
The navigation method according to claim 10 or 11, wherein a time to arrive at the accepted destination is calculated according to the acquired traffic information.   The navigation method according to any one of claims 10 to 12, wherein a time of arrival at the accepted destination is calculated every predetermined time.   The navigation method according to any one of claims 10 to 13, wherein a facility selected from the searched facilities is received as a setting relating to a destination. When searching for a facility of the same type as the destination received from the memorized facility,
The navigation method according to any one of claims 10 to 14, wherein a facility within a predetermined distance from the received destination is searched. When searching for a facility of the same type as the destination received from the memorized facility,
The navigation method according to any one of claims 10 to 15, wherein a facility that can be reached within an available time is searched. When searching for a facility of the same type as the destination received from the memorized facility,
The navigation method according to any one of claims 10 to 16, wherein a predetermined number of facilities are searched.   The navigation method according to any one of claims 10 to 17, wherein the retrieved facilities are displayed in order from the closest destination. In a navigation program that causes a processing device to acquire information related to the position of a moving object, accept settings related to a destination, calculate a time of arrival at the accepted destination, and perform guidance guidance to the destination ,
In the processing equipment,
Store information related to facility location, type and available time,
If the accepted destination is a memorized facility, it is determined whether the calculated arrival time is within the available time of the destination,
If it is determined that it is not within the available time, search the facility of the same collection as the destination received from the stored facility,
A navigation program characterized by displaying searched facilities. In the processing equipment,
Calculate the route from the position of the acquired mobile object to the accepted destination,
The navigation program according to claim 19, wherein the received destination, the calculated route, and the searched facility are displayed. In the processing equipment,
Get traffic information,
The navigation program according to claim 19 or 20, wherein a time for arriving at the accepted destination is calculated according to the acquired traffic information. In the processing equipment,
The navigation program according to any one of claims 19 to 21, wherein a time to arrive at the accepted destination is calculated every predetermined time. In the processing equipment,
The navigation program according to any one of claims 19 to 22, wherein a facility selected from the searched facilities is accepted as a setting relating to a destination. In the processing equipment,
If you want to search for a facility of the same type as the destination you received from the stored facility,
The navigation program according to any one of claims 19 to 23, wherein a facility within a predetermined distance from a received destination is searched. In the processing equipment,
If you want to search for a facility of the same type as the destination you received from the stored facility,
The navigation program according to any one of claims 19 to 24, wherein a facility that can be reached within an available time is searched. In the processing equipment,
If you want to search for a facility of the same type as the destination you received from the stored facility,
The navigation program according to any one of claims 19 to 25, wherein a predetermined number of facilities are searched. In the processing equipment,
27. The navigation program according to any one of claims 19 to 26, wherein the searched facilities are displayed in order from the closest destination to the received destination.

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