JP2004198157A - Navigation device, peripheral facility retrieval method, computer program, and information storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device or the like capable of retrieving a facility located in a peripheral region of a present location and satisfying a retrieval condition without complication. <P>SOLUTION: This navigation device 1 repeats the retrieval of the facility by controlling a CPU 11 in order to detect the facility satisfying a retrieval condition set by the CPU 11 and located in the peripheral region including the present location detected by a sensor part 16 and a GPS reception part 17. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a navigation device, a peripheral facility search method, a computer program, and an information storage medium recording the same.
[0002]
[Prior art]
For example, a navigation device for a vehicle or the like detects a current location by using a GPS (Global Positioning System) or the like, and provides route guidance to a destination. Here, the destination is generally set by the user specifying a desired facility.
[0003]
However, the user does not necessarily desire a specific facility, and may be any facility as long as the facility provides a predetermined service, or at any chain store among facilities having a plurality of chain stores. There may be cases where there is no problem. In these cases, a so-called peripheral search may be performed in which the user sets search conditions such as a desired facility genre and the navigation apparatus searches for a facility that satisfies the search conditions from a peripheral area of the current location.
[0004]
There is disclosed a method of selecting guidance information in a navigation display in which guidance information within a predetermined range is listed based on the position of the vehicle and can be selected as a target position (for example, see Patent Document 1).
[0005]
According to the method for selecting guidance information in the navigation display, guidance information within a predetermined range based on the position of the own vehicle is listed, and the destination can be selected as a destination. is there.
[Patent Document 1]
JP-A-6-223296
[0006]
[Problems to be solved by the invention]
However, in the conventional navigation device, if a corresponding facility is not detected in one search when performing a peripheral search, the user searches for a peripheral again after moving a certain distance and instructing (inputting) the user himself. Had to run. Then, the user has to repeatedly instruct the execution of the peripheral search until a facility satisfying the search condition is detected.
[0007]
The present invention has been made in view of such a problem, and one example of the problem is that the facility that satisfies the search condition located in the surrounding area of the current location is not troublesome even when the facility is not detected by one search. It is an object of the present invention to provide a navigation device or the like capable of performing a search for a search.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a navigation device according to claim 1 is a navigation device for a mobile object, wherein a facility information including at least information on a position and facility contents is stored in a file stored for a plurality of facilities. Facility information acquiring means for acquiring the facility information; search condition setting means for setting a search condition for searching for a facility having desired facility contents from among a plurality of facilities; and a current location for detecting a current location of the moving body. Detecting means, a facility searching means for searching for a facility which satisfies the search condition and is located in a peripheral area including the current location, and controlling the current location detecting means and the facility searching means to at least detect the current location and the facility while the mobile unit is traveling , And output means for outputting the facilities searched by the facility search means.
[0009]
In order to solve the above problem, a navigation server according to claim 7 is a navigation server that is connected to a navigation terminal held by a moving body using communication, and configures a navigation device together with the navigation terminal, Facility information acquisition means for acquiring facility information from a file in which facility information including at least information on the location and facility contents is stored for a plurality of facilities; and a facility having desired facility contents is searched from the plurality of facilities. Condition acquisition means for acquiring the search condition set in the navigation terminal, current position acquisition means for acquiring the current position of the moving object detected in the navigation terminal, and a facility satisfying the search condition and located in a peripheral area including the current position Search means, current location acquisition means and facility search A repetition control unit for controlling the steps to repeat at least the acquisition of the current position and the search for the facility while the mobile body is traveling, and a search result providing unit for providing a result searched by the facility search unit to the navigation terminal. It is characterized by the following.
[0010]
In order to solve the above problem, a peripheral facility search method according to claim 8 is a peripheral facility search method performed by a navigation device for a mobile object, wherein the facility information includes at least information on a position and a facility content. A facility information acquiring step of acquiring the facility information from a file stored for a plurality of facilities, and a search condition setting step of setting a search condition for searching for a facility having desired facility contents from the plurality of facilities. A current position detection step of detecting the current position of the moving object, a facility search step of searching for a facility that satisfies the search condition and is located in a peripheral area including the current position, and an output step of outputting the facility searched in the facility search step. And repeating the current location detection step and the facility search step at least while the moving body is traveling.
[0011]
In order to solve the above-mentioned problem, a computer program according to claim 9 stores a computer included in a navigation apparatus for a mobile object at a plurality of facilities by storing facility information including at least information on a position and facility contents. Facility information acquiring means for acquiring the facility information from the retrieved file, search condition setting means for setting a search condition for searching for a facility having desired facility contents from a plurality of facilities, and a current location of the mobile unit. A current position detecting means for detecting, a facility searching means for searching for a facility which satisfies a search condition and is located in a surrounding area including the current position, and a current position detecting means for controlling the current position detecting means and the facility searching means to detect the current position at least during traveling of the moving body Function as repetition control means for repeating the search for facilities and facilities, and output means for outputting the facilities searched by the facility search means And characterized in that.
[0012]
Further, in order to solve the above problem, an information recording medium according to a tenth aspect is characterized in that the computer program according to the ninth aspect is recorded so as to be readable by a computer.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment suitable for the present application will be described with reference to the drawings.
[0014]
1.First embodiment
The first embodiment is an example in which the navigation device of the present application is applied to a vehicle-mounted navigation device. Hereinafter, the structure of the first navigation device according to the first embodiment and a peripheral search method performed using the same will be described in detail.
[0015]
A.Structure of first navigation device
FIG. 1 is a block diagram showing the overall configuration of the first navigation device. As shown in FIG. 1, the first navigation device 1 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, and a DVD / CD-ROM (Digital Versatile). Disc-Read Only Memory (DR) drive 14, hard disk 15, sensor unit 16, GPS (Global Positioning System) receiving unit 17, interface 18, input device 19, display 20, display control unit 21, buffer It comprises a memory 22, an audio processing circuit 23, a speaker 24, and a bus 25.
[0016]
In FIG. 1, a CPU 11 controls the operation of the entire navigation device 1. The CPU 11 is connected to the components of the navigation device 1 via the bus 25, reads and executes a control program stored in the ROM 12, and temporarily stores data being processed in the RAM 13. The control program stored in the ROM 12 includes, for example, a program that causes the CPU 11 to function as facility information acquisition means, search condition setting means, current location detection means, facility search means, repetition control means, output means, and repetition reservation means. It is. Then, the CPU 11 reads and executes the program, and functions as, for example, all or a part of the facility information acquisition unit, the search condition setting unit, the current location detection unit, the facility search unit, the repetition control unit, the output unit, and the repetition reservation unit. .
[0017]
The DVD / CD-ROM drive 14 functions as all or a part of the facility information acquisition unit, and reads various information stored in the DVD / CD-ROM 26. The DVD / CD-ROM 26 stores map data, road data (including road inclination data), facility information, and the like. Here, the facility information includes at least position information indicating the position of the facility and content information indicating the contents of the facility such as the facility genre.
[0018]
The hard disk 15 is a nonvolatile storage device that reads and writes map data and road data.
[0019]
The sensor unit 16 includes various sensors necessary for detecting the position of the host vehicle. Specifically, it includes a distance sensor, a direction sensor, a G sensor, and the like for detecting a running state of the vehicle. The G sensor is a sensor that determines an inclination, and performs determination of a road running in parallel up and down (for example, determination of a highway and a general road) and determination of a road crossing vertically.
[0020]
The GPS receiver 17 receives radio waves from GPS satellites and outputs positioning data. Based on the sensor output from the sensor section 16 and the positioning data from the GPS receiving section 17, the CPU 11 comprehensively detects the current location of the traveling vehicle.
[0021]
The interface 18 performs an interface operation between the sensor unit 16 and the GPS receiving unit 17 and the CPU 11, and the CPU 11 uses the sensor output from the sensor unit 16 and the positioning data from the GPS receiving unit 17 to record the vehicle position data. Is required. The vehicle position data is collated with the above-described map data by the CPU 11 and corrected using a map matching process or the like.
[0022]
Note that the above-described sensor unit 16, GPS receiving unit 17, and interface 18 function as, for example, all or a part of the current position detection unit.
[0023]
The input device 19 includes a key unit provided in the navigation system body or a remote controller including the key unit, and supplies a signal corresponding to the key input to the CPU 11 in order to perform a desired operation in the navigation operation. The input device 19 functions as, for example, all or part of a search condition setting unit and a repetition reservation unit.
[0024]
The display 20 is a display unit used for a navigation operation, and includes, for example, a CRT, a liquid crystal display element, and the like. On the display 20, map data is displayed in various modes under the control of the display control unit 21, and the current position of the vehicle and the location of the facility are displayed in a superimposed manner.
[0025]
The display control unit 21 generates display data to be displayed on the display 20, reads out the display data from the buffer memory 22 at an appropriate timing, and temporarily outputs the display data to the display 20 while temporarily storing the display data in the buffer memory 22.
[0026]
The audio processing circuit 23 generates a predetermined audio signal under the control of the CPU 11. The audio signal amplified to an appropriate level in the audio processing circuit 23 is output from the speaker 24 to the outside. Such audio signals include, for example, guidance audio for guiding the route of the vehicle and guidance audio for the location and contents of the facility.
[0027]
The display 20 and / or the speaker 24 function as, for example, all or a part of the output unit.
[0028]
B.Neighborhood search method using first navigation device
FIG. 2 is a flowchart showing a procedure of a peripheral search using the first navigation device.
[0029]
The navigation device 1 starts a peripheral search based on, for example, an instruction input from the input device 19 to perform a peripheral search.
[0030]
When the peripheral search is started, the navigation device 1 inquires of the user about the search condition, and sets the search condition based on the content responded by the user according to the inquiry (step S1). The search conditions are set, for example, by the facility genre (gas station, convenience store, family restaurant, parking lot, bank, hospital, etc.) or the facility name of the facility having the chain store (XX convenience store, △ restaurant, XX bank ... Etc.).
[0031]
Specifically, for example, the navigation device 1 displays a list of facility genres or a list of facilities having a chain store on the display 20, and selects a desired facility genre or a facility name of the facility having the chain store to the user. The search conditions are set as follows.
[0032]
Next, the navigation device 1 detects the current location of the traveling vehicle (Step S2). Specifically, the current position of the traveling vehicle may be detected based on the sensor output from the sensor unit 16 and the positioning data from the GPS receiving unit 17.
[0033]
Note that the detection of the current position does not necessarily have to be performed at the timing of step S2. For example, the current position may be always detected at regular intervals, and the current position obtained by the latest detection may be acquired in step S2. good.
[0034]
Next, the navigation device 1 searches for a facility that satisfies the search conditions set in this way and is located in a peripheral area including the current location (step S3). Specifically, first, referring to a condition that defines a preset surrounding area, for example, a condition that a predetermined distance (for example, 5 km) from the current location is set as the surrounding area, the current location obtained in step S2 is referred to. Is determined. Then, the facility information stored in the DVD / CD-ROM 26 is read out by the DVD / CD-ROM drive 14, and facilities located in the peripheral area and satisfying the search condition obtained in step S1 are extracted.
[0035]
Next, it is determined whether or not the corresponding facility is detected in the search in step S3 (step S4). When the corresponding facility is detected (Step S4: Yes), the process proceeds to Step S11. On the other hand, when the corresponding facility is not detected (step S4: No), the process proceeds to step S5.
[0036]
Next, the navigation device 1 confirms whether or not the user makes a reservation for the repetition process of the peripheral search (step S5). For example, the navigation device 1 outputs on the display 20 or / and the speaker 24 a message such as "There is no corresponding facility in the peripheral area. Do you reserve the repetition processing of the peripheral search?" "Required" and "not required". Then, when the reservation "necessary" for the repetitive processing is input (step S5: Yes), the process proceeds to step S6. On the other hand, when the reservation of the repetition process “NO” is input (step S5: No), the peripheral search ends.
[0037]
Next, the navigation device 1 determines whether or not the reservation for the repetitive processing has been canceled (step S6). The user can cancel the reservation for the repetitive processing at any time. If it is determined that the reservation for the repetitive processing has been canceled (step S6: Yes), the peripheral search ends. On the other hand, if it is determined that the reservation of the repetition process has not been canceled (step S6: No), the process proceeds to step S7.
[0038]
Next, the navigation device 1 determines whether or not the vehicle has traveled a predetermined distance (predetermined distance) since the previous peripheral search was performed (step S7). For example, based on the sensor output from the sensor unit 16 and the positioning data from the GPS receiving unit 17, the distance traveled since the previous search for the surrounding area is calculated and stored in the RAM 13 or the like. The above determination is made based on whether the answer is NO. Here, the predetermined distance may be determined in relation to the definition of the peripheral region described above. That is, the predetermined distance may be determined so that the peripheral search is performed again before the current location at the time of the current peripheral search is outside the peripheral area (search area) of the current location at the time of the previous peripheral search.
[0039]
A specific example of the method for determining the predetermined distance will be described with reference to FIG. FIG. 3 is a diagram illustrating a case where the vehicle C traveling on the road R performs a peripheral search at the point C1 and then performs a peripheral search again at the point C2 by an iterative process. Here, when the peripheral area (search area) in the peripheral search is defined as an area within a distance L from the current position, the predetermined distance M may be determined so that M ≦ L.
[0040]
If it is determined in step S7 that the vehicle has traveled a predetermined distance since the previous neighborhood search was performed (step S7: Yes), the process proceeds to step S8. On the other hand, when it is determined that the vehicle has not traveled the predetermined distance (step S7: No), the process returns to step S6.
[0041]
In step S7, instead of determining whether or not the vehicle has traveled a predetermined distance since the previous peripheral search, it may be determined whether a predetermined time has elapsed since the previous peripheral search. good. In this case, the above-described determination may be made by calculating the elapsed time from the previous neighborhood search based on the time information included in the internal clock of the navigation device 1 or the GPS signal, and comparing the elapsed time with a predetermined time. As for the predetermined time, similarly to the above-described predetermined distance, the peripheral search is performed again before the current location at the time of the current peripheral search is outside the peripheral area (search area) of the current location at the time of the previous peripheral search. It is desirable to determine
[0042]
Next, the navigation device 1 detects the current location of the traveling vehicle (Step S8). Step S8 is the same as step S2.
[0043]
Note that, similarly to step S2, the detection of the current position does not necessarily need to be performed at the timing of step S8. For example, the current position is always detected at regular intervals, and in step S8, the current position obtained by the latest detection is determined. You may make it acquire.
[0044]
Next, the navigation device 1 searches for a facility that satisfies the search condition set in step S1 and is located in a peripheral area of the current location (step S9). The content of step S9 is basically the same as that of step S3, but the current location detected in step S8 (the latest current location at the present time) is used as the current location used for the search.
[0045]
Next, as a result of the facility search in step S9, the navigation device 1 determines whether or not the corresponding facility has been searched (step S10). If the corresponding facility is detected as a result of this determination (step S10: Yes), the process proceeds to step S11. On the other hand, when the corresponding facility is not detected (step S10: No), the process returns to step S6. That is, the processes from step S6 to step S10 are repeated until the corresponding facility is detected.
[0046]
Next, the navigation device 1 outputs the facility detected in step S3 or step S9 (step S11). Specifically, the location of the facility detected on the map displayed on the display 20 can be displayed in a superimposed manner, or the speaker 24 can provide guidance by voice. When the process in step S11 is completed, the peripheral search ends.
[0047]
As described above, the navigation device 1 according to the first embodiment is a navigation device for a mobile object, and obtains facility information from a file in which facility information including at least information on a position and facility contents is stored for a plurality of facilities. , A CPU 11 for setting search conditions for searching for a facility having desired facility contents from among a plurality of facilities, a sensor unit 16 for detecting the current location of the mobile unit, and a GPS receiving unit 17; A CPU 11 that satisfies search conditions and searches for a facility located in a peripheral area including the current location, a CPU 11 that repeats at least the detection of the current location and a search for the facility while the mobile unit is traveling, and a display that outputs the facility searched by the CPU 11 20 or a speaker 24.
[0048]
With this configuration, the navigation device 1 allows the CPU 11 to repeat the detection of the current location and the search for the facility even if the corresponding facility is not detected in a single search of the facility, so that the facility search can be performed without any trouble. .
[0049]
Further, by causing the CPU 11 to repeat the detection of the current location and the search for the facility until the facility that satisfies the search condition and is located in the surrounding area is detected, the relevant facility can be reliably detected.
[0050]
In addition, by causing the CPU 11 to repeat the facility search triggered by the movement of a predetermined distance from the previous facility search, the facility can be reliably searched at regular intervals. If the predetermined distance is set so that a new facility search is performed before the current location is outside the surrounding area (search area) in the previous facility search, the facility search is performed without overlooking the existence of the facility. be able to. The same effect can be obtained when the CPU 11 repeats the facility search triggered by the passage of a predetermined time from the previous facility search.
[0051]
In addition, the navigation device 1 of the first embodiment further includes a CPU 11 that reserves a repetition process of searching for a facility, and the CPU 11 repeats the detection of the current location and the search of the facility when the repetition process is reserved. The facility search can be repeated only when the facility search repetition process is reserved.
[0052]
2.Second embodiment
The second embodiment is an example in which the navigation device of the present application is applied to a communication-type vehicle-mounted navigation device. Hereinafter, the structure of the second navigation device according to the second embodiment and a peripheral search method performed using the same will be described in detail.
[0053]
A.Structure of second navigation device
FIG. 4 is a conceptual diagram showing the overall configuration of the second navigation device 31. As shown in FIG. 4, the second navigation device 31 includes a navigation server 32 provided with a database for storing map information, facility information, and the like, and a navigation terminal 33 for accessing the navigation server using communication. You.
[0054]
FIG. 5 is a block diagram showing the overall configuration of the navigation server 32. As shown in FIG. 5, the navigation server 32 mainly includes a CPU 41, a ROM 42, a RAM 43, a database 44, a communication unit 45, and a bus 46.
[0055]
In FIG. 5, a CPU 41 controls the operation of the entire navigation server 32. The CPU 41 is connected to the components of the navigation server 32 via the bus 46, reads and executes a control program stored in the ROM 42, and temporarily stores the data being processed in the RAM 43.
[0056]
The database 44 stores map data, road data (including road inclination data), facility information, and the like. Here, as in the first embodiment, the facility information includes at least position information indicating the position of the facility and content information indicating the contents of the facility such as the facility genre.
[0057]
The communication unit 45 receives the current location information and information such as search conditions in the peripheral search from the navigation terminal 33, and transmits information such as map information and corresponding facility information in the peripheral search to the navigation terminal 33.
[0058]
FIG. 6 is a block diagram showing the entire configuration of the navigation terminal 33. As illustrated in FIG. 6, the navigation terminal 33 includes a communication unit 27 instead of the DVD / CD-ROM drive 14 except for the components of the first navigation device 1.
[0059]
The communication unit 27 transmits information such as current location information and search conditions in a peripheral search to the navigation server 32, and receives information such as map information and corresponding facility information in the peripheral search from the navigation server 32.
[0060]
The other components are the same as those of the first navigation device 1, and the description thereof is omitted, and the same reference numerals are used below.
[0061]
As described above, the second navigation device 31 configured by the navigation server 32 and the navigation terminal 33 performs a navigation process as follows. That is, first, the navigation terminal 33 detects the current position of the traveling vehicle comprehensively by the CPU 11 based on the sensor output from the sensor unit 16 and the positioning data from the GPS receiving unit 17, and sends the information on the current position to the navigation server 32. Send. Subsequently, the navigation server 32 extracts map information, road information, facility information, and the like corresponding to the current location from the database 44, and transmits the information to the navigation terminal 33. Then, the navigation terminal 33 outputs the information through the display 20 and the speaker 24.
[0062]
Note that a peripheral search method using the second navigation device 31 will be described below.
[0063]
B.Neighborhood search method using second navigation device
The peripheral search method according to the second embodiment is basically the same as the peripheral search method according to the first embodiment, except that the navigation terminal 33 and the navigation server 32 exchange information using communication, and perform each step. This is different from the first embodiment in that the peripheral search is shared.
[0064]
Hereinafter, the peripheral search method according to the second embodiment will be described with reference to FIG. 2 used in the description of the first embodiment, while clarifying the steps that the navigation terminal 33 and the navigation server 32 are in charge of.
[0065]
The navigation device 31 starts a peripheral search based on an instruction to start a peripheral search performed via the input device 19 of the navigation terminal 33 or the like.
[0066]
When the peripheral search is started, the navigation terminal 33 inquires of the user about search conditions, and sets search conditions based on the content of the user responding to the inquiry (step S1). The content of step S1 is the same as in the first embodiment. The information on the search condition is transmitted to the navigation server 32 via the communication unit 27.
[0067]
Next, the navigation terminal 33 detects the current location of the traveling vehicle (Step S2). The content of step S2 is the same as in the first embodiment. The information on the detected current location is transmitted to the navigation server 32 via the communication unit 27.
[0068]
Next, the navigation server 32 receives the search condition and the information on the current location, and searches for a facility that satisfies the search condition and is located in a peripheral area including the current location (step S3). Specifically, the navigation server 32 refers to a preset definition of the surrounding area (for example, a definition that a predetermined distance (for example, 5 km) from the current location is set as the surrounding area), and determines the received surrounding area for the current location. The facility that is determined and located in the surrounding area and that satisfies the search condition obtained in step S1 is extracted from the facility information stored in the database.
[0069]
Although the case where the navigation server 32 holds the definition of the surrounding area has been described above, when the navigation terminal 33 holds the definition of the surrounding area, the navigation terminal 33 performs a process of determining the surrounding area of the current location. The determined surrounding area may be transmitted to the navigation server 32, or the definition of the surrounding area may be transmitted to the navigation server 32 together with the information on the current location, and the neighborhood of the current location may be transmitted to the navigation server 32 as described above. The region may be determined.
[0070]
Next, it is determined whether or not the corresponding facility is detected in the search in step S3 (step S4). When the corresponding facility is detected as a result of the search in step S3 (step S4: Yes), the process proceeds to step S11. On the other hand, when the corresponding facility is not detected (step S4: No), the process proceeds to step S5.
[0071]
Next, the navigation terminal 33 confirms whether or not the user should make a reservation for the repetition processing of the peripheral search (step S5). The content of step S5 is the same as in the first embodiment.
[0072]
Next, the navigation terminal 33 determines whether or not the reservation for the repetitive processing has been canceled (step S6). The contents of step S6 are the same as in the first embodiment.
[0073]
Next, the navigation terminal 33 determines whether or not the vehicle has traveled a predetermined distance from the time when the previous neighborhood search was performed (step S7). The content of step S7 is the same as in the first embodiment.
[0074]
In step S7, instead of determining whether or not the vehicle has traveled a predetermined distance since the previous peripheral search, it may be determined whether a predetermined time has elapsed since the previous peripheral search. good. This is the same as in the first embodiment.
[0075]
Next, the navigation terminal 33 detects the current location of the traveling vehicle (Step S8). Step S8 is the same as step S2.
[0076]
Next, the navigation server 32 searches for a facility that satisfies the search condition set in step S1 and is located around the current location detected in step S8 (step S9). The content of step S9 is basically the same as that of step S3, but the current location detected in step S8 (the latest current location at the present time) is used as the current location used for the search.
[0077]
Next, the navigation terminal 33 determines whether or not the corresponding facility has been searched as a result of the facility search in step S9 (step S10). Then, when the corresponding facility is detected as a result of the determination (step S10: Yes), the process proceeds to step S11. On the other hand, when the corresponding facility is not detected (step S10: No), the process returns to step S6. That is, the processing from step S6 to step S10 is repeatedly performed until the corresponding facility is detected.
[0078]
Next, the navigation terminal 33 outputs the facility detected in step S3 or step S9 (step S11). Specifically, the location of the facility detected on the map displayed on the display 20 can be displayed in a superimposed manner, or the speaker 24 can provide guidance by voice. When the process in step S11 is completed, the peripheral search ends.
[0079]
As described above, the navigation device 31 of the second embodiment is a navigation device for a mobile object, and the facility information including at least information on the position and the facility contents is obtained from a file in which the facility information is stored for a plurality of facilities. , A CPU 41 of a navigation terminal 33 for setting search conditions for searching for a facility having desired facility contents from among a plurality of facilities, and a navigation terminal for detecting the current location of a moving object. 33, a sensor unit 16 and a GPS receiving unit 17, a CPU 41 of a navigation server 32 that satisfies search conditions and searches for a facility located in a peripheral area including the current location, and a detection of a current location and a search for a facility at least during traveling of the moving object CPU 41 of the navigation server 32 for repeating A display 20 or speaker 24 of the navigation terminal 33 for outputting a facility searched by the CPU41 of the ligation server 32, and includes a.
[0080]
With this configuration, the navigation device 31 allows the CPU 41 of the navigation server 32 to repeat the detection of the current location and the search for the facility even when the corresponding facility is not detected in a single search of the facility, so that the facility search can be performed without any trouble. Can do it.
[0081]
Further, the CPU 41 of the navigation server 32 repeats the detection of the current location and the search for the facility until the facility that satisfies the search condition and is located in the surrounding area is detected, so that the relevant facility can be reliably detected.
[0082]
In addition, by causing the CPU 41 of the navigation server 32 to repeat the facility search triggered by the movement of a predetermined distance from the previous facility search, the facility search can be reliably performed at regular intervals, and furthermore, If the predetermined distance is set so that a new facility search is performed before the current location of the own vehicle is outside the surrounding area (search area) in the previous facility search, the facility can be overlooked without overlooking the existence of the facility. Can be searched. The same effect can be obtained when the CPU 41 of the navigation server 32 repeats the facility search triggered by the passage of a predetermined time from the previous facility search.
[0083]
Further, the navigation device 31 of the second embodiment further includes the CPU 11 of the navigation terminal 33 for reserving the repetition processing of the facility search, and the CPU 41 of the navigation server 32 detects the current position when the repetition processing is reserved. By causing the facility search to be repeated, the facility search can be repeated only when the facility search repetition process is reserved.
[0084]
Further, in the navigation device 31 of the second embodiment, since the facility information is stored in the database 44 of the navigation server 32, the facility information in the database 44 is periodically updated, so that the facility information is stored based on the latest facility information. A peripheral search can be performed, and the reliability of the peripheral search can be improved.
[0085]
3.Other embodiments
In the above embodiment, the embodiment in which the navigation device of the present application is applied to an in-vehicle navigation device has been described. However, the present invention is not limited to this. For example, a mobile terminal device (mobile phone, PHS, PDA, etc.) is used. It is also possible to apply the navigation device of the present application to a navigation device.
[0086]
The configuration of the navigation device in this case is a configuration in which the navigation terminal 33 of the second embodiment is replaced with a mobile phone. In other words, the mobile terminal detects the current location using GPS or the like and sets search conditions, transmits these to the navigation server 32, and the navigation server 32 performs a facility search based on the information, and the corresponding facility is If not detected, the facility search is repeated on the premise of making a reservation for the repetitive processing, and the peripheral search is executed. The details of the peripheral search method are the same as in the case of the second navigation device 31.
[0087]
Further, in this case, instead of detecting the current location using the GPS, the current location may be detected based on communication radio waves used for communication between the mobile terminal device and the base station. That is, for example, communication radio waves from a plurality of base stations are received, the distance from each base station is detected, and the position of the mobile terminal device is calculated based on the distance from each base station, and the current value is calculated. Just fine.
[0088]
In the description of the peripheral search method according to the second embodiment, each step is shared between the navigation terminal 33 and the navigation server 32. However, the sharing of the steps is an example, and the navigation device 31 as a whole is a navigation device of the present application. Each division is not limited to this as long as it fulfills the function of.
[0089]
Further, in the above embodiment, the key unit provided in the navigation device 1 or the navigation terminal 32, or a remote controller having a key unit or the like is used as the input device 19, but the input device 19 is not limited to this, and for example, A voice input device that performs input by voice operation may be used as the input device 19. According to this, it becomes possible to smoothly perform the input processing for setting the search conditions and for reserving or canceling the repetitive processing.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating an overall configuration of a navigation device according to a first embodiment.
FIG. 2 is a flowchart illustrating a procedure of a peripheral search method according to the first embodiment.
FIG. 3 is a diagram illustrating a method for determining a predetermined distance.
FIG. 4 is a block diagram illustrating an overall configuration of a navigation device according to a second embodiment.
FIG. 5 is a block diagram illustrating an overall configuration of a navigation server of a navigation device according to a second embodiment.
FIG. 6 is a block diagram showing an overall configuration of a navigation terminal of a navigation device according to a second embodiment.
[Explanation of symbols]
1 Navigation device
11 CPU
12 ROM
13 RAM
14 DVD-ROM drive
15 Hard Disk
16 Sensor section
17 GPS receiver
18 Interface
19 Input device
20 Display
21 Display control unit
22 Buffer memory
23 Audio processing circuit
24 speakers
25 bus
26 DVD-ROM
31 Navigation device
32 Navigation Server
33 Navigation terminal

Claims (10)

A navigation device for a moving object,
Facility information acquisition means for acquiring the facility information from a file in which facility information including at least the location and facility contents are stored for a plurality of facilities;
Search condition setting means for setting a search condition for searching for a facility having desired facility contents from the plurality of facilities,
Current position detecting means for detecting the current position of the moving body,
Facility search means for searching for a facility that satisfies the search condition and is located in a peripheral area including the current location;
Repetition control means for controlling the current location detection means and the facility search means to repeat the detection of the current location and the search for the facility at least while the mobile unit is traveling,
Output means for outputting the facility searched by the facility search means;
A navigation device comprising: The navigation device according to claim 1,
The navigation device according to claim 1, wherein the peripheral area is defined as an area within a predetermined distance from the current location. The navigation device according to claim 1,
The navigation device, wherein the repetition control means repeats the detection of the current location and the search for the facility until a facility that satisfies the search condition and is located in the peripheral area is detected. The navigation device according to claim 1,
The navigation device, wherein the repetition control means causes the facility search to be repeated when a predetermined distance has elapsed since the previous facility search. The navigation device according to claim 1,
The navigation device, wherein the repetition control means repeats the search for the facility when a predetermined time has elapsed since the previous search for the facility. The navigation device according to claim 1,
The apparatus further includes a repetition reservation unit that reserves a repetition process of the facility search,
The navigation apparatus, wherein the repetition control means causes the detection of the current location and the search for the facility to be repeated when the repetition processing is reserved by the repetition reservation means. A navigation server which is connected to a navigation terminal held by a moving body using communication and forms a navigation device together with the navigation terminal,
Facility information acquisition means for acquiring the facility information from a file in which facility information including at least the location and facility contents are stored for a plurality of facilities;
Search condition acquisition means for acquiring a search condition set in the navigation terminal to search for a facility having desired facility contents from the plurality of facilities,
Current position acquisition means for acquiring a current position of the moving object detected in the navigation terminal,
Facility search means for searching for a facility that satisfies the search condition and is located in a peripheral area including the current location;
Repetition control means for controlling the current location acquisition means and the facility search means to repeat the acquisition of the current location and the search for the facility at least while the mobile is traveling,
Search result providing means for providing the result searched by the facility search means to the navigation terminal,
A navigation server comprising: A peripheral facility search method performed by a navigation device for a moving body,
A facility information acquiring step of acquiring the facility information from a file in which facility information including at least the location and facility contents is stored for a plurality of facilities;
A search condition setting step of setting search conditions for searching for a facility having desired facility contents from the plurality of facilities;
A current position detecting step of detecting a current position of the moving body,
A facility search step of searching for a facility that satisfies the search condition and is located in a peripheral area including the current location;
An output step of outputting the facility searched in the facility search step,
A peripheral facility search method, wherein the current location detection step and the facility search step are repeated at least while the mobile unit is traveling. A computer included in a navigation device for a moving object,
Facility information acquisition means for acquiring the facility information from a file in which facility information including at least the location and facility contents are stored for a plurality of facilities;
Search condition setting means for setting a search condition for searching for a facility having desired facility contents from the plurality of facilities,
Current position detecting means for detecting the current position of the moving body,
Facility search means for searching for a facility that satisfies the search condition and is located in a peripheral area including the current location;
Repetition control means for controlling the current location detection means and the facility search means to repeat the detection of the current location and the search for the facility at least while the mobile unit is traveling,
Output means for outputting the facility searched by the facility search means;
A computer program characterized by functioning as a computer. An information recording medium in which the computer program according to claim 9 is recorded so as to be readable by the computer.

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