JP5933373B2 - Navigation device - Google Patents

Description

  The present invention relates to a technique for counting the number of people.

  Conventionally, there is a technique for automatically counting the number of persons (number of persons).

  For example, in Patent Document 1, the number of wireless portable terminals is counted using a transmission signal from a wireless portable terminal such as a mobile phone or PHS (Personal Handy-phone System), and the number of personnel is calculated using the counted number. Techniques for identifying numbers are disclosed.

JP 2000-295167 A

  However, in the technique described in Patent Document 1, the number of wireless portable terminals is counted using a transmission signal from the wireless portable terminal, and the number of personnel is specified using the counted number. If you had a wireless handheld device, you could not specify the number of people correctly.

  Accordingly, an object of the present invention is to provide a technique that can specify the number of personnel with high accuracy even when one person possesses a plurality of wireless portable devices.

A navigation device according to the present invention is a navigation device that moves together with a vehicle, and includes a receiving unit that receives a transmission signal from a portable device having a wireless communication function, and a reception intensity of the transmission signal received by the receiving unit is predetermined. Based on whether or not the portable device that has transmitted the transmission signal is present in the vehicle based on whether or not it is greater than or equal to the threshold value, and on the interior of the vehicle existing in the vehicle based on the determination result of the determination unit The counter includes a counting unit that counts the number of portable devices, and an instruction unit that gives an instruction to execute an operation according to the number counted by the counting unit. The counting means determines whether or not the mobile device determined to be in the vehicle is a mobile device to be excluded. If it is a device, the mobile device determined to exist in the vehicle is not counted as the number of mobile devices in the vehicle, and if the mobile device determined to exist in the vehicle is not a mobile device to be excluded, it is determined to exist in the vehicle. Mobile devices counted as the number of mobile devices in the car.

The navigation device according to the present invention comprises receiving means for receiving the transmitted signal from the portable device having a wireless communication function, based on the signal signal transmission received by the receiving means, the portable device vehicle that originated the transmission signal Based on the determination result of the determination means, a counting means for counting the number of portable devices in the vehicle, and an operation according to the number counted by the counting means. An instruction means for performing an execution instruction, and the counting means determines whether or not the portable device determined to be present in the vehicle is included in a set of a plurality of pre-registered portable devices, and is determined to be present in the vehicle. If it is determined that the received mobile device is not included in the set of a plurality of mobile devices, the mobile device determined to be present in the vehicle is counted as the number of mobile devices in the vehicle and is present in the vehicle. When it is determined that the mobile device determined to be included in the set of a plurality of mobile devices, if any of the plurality of mobile devices has been counted, the mobile device determined to exist in the vehicle is When the number of devices is not counted and any of the plurality of portable devices is not counted, the number of portable devices determined to be present in the vehicle is counted as the number of portable devices in the vehicle.

The navigation device according to the present invention comprises receiving means for receiving the transmitted signal from the portable device having a wireless communication function, based on the signal signal transmission received by the receiving means, the portable device vehicle that originated the transmission signal Based on the determination result of the determination means, a counting means for counting the number of portable devices in the vehicle, and an operation according to the number counted by the counting means. An instruction means for performing an execution instruction, and the counting means determines whether or not the portable device determined to be present in the vehicle is a portable device to be excluded from being counted by the counting means. If the mobile device determined to exist is a mobile device to be excluded, the mobile device determined to exist in the vehicle is not counted as the number of mobile devices in the vehicle, Determines whether or not the portable device determined to be present in the vehicle is included in a set of a plurality of pre-registered portable devices when the portable device determined to be present in the vehicle is not an excluded portable device However, if it is determined that the mobile device determined to be present in the vehicle is not included in the set of the plurality of mobile devices, the mobile device determined to be present in the vehicle is counted as the number of mobile devices in the vehicle, When it is determined that a mobile device determined to exist is included in a set of a plurality of mobile devices, if any of the plurality of mobile devices has been counted, the mobile device determined to be present in the vehicle When the number of portable devices is not counted and any of the plurality of portable devices is not counted, the number of portable devices determined to be present in the vehicle is counted as the number of portable devices in the vehicle.

  According to the present invention, even when one person has a plurality of wireless portable devices, the number of personnel can be specified with high accuracy.

1 is an overall view showing a configuration of a navigation device according to a first embodiment. It is a partial block diagram of a navigation apparatus. It is a flowchart which shows operation | movement of a navigation apparatus. It is a flowchart which shows the detail of the count process which counts the number of portable devices. It is a flowchart which shows the detail of the count process performed with the navigation apparatus which concerns on 2nd Embodiment. It is a flowchart which shows the detail of the count process performed with the navigation apparatus which concerns on 3rd Embodiment.

  Each embodiment will be described below with reference to the drawings.

<1. First Embodiment>
[1-1. Constitution]
FIG. 1 is an overall view showing a configuration of a navigation device 1 (1A) according to the first embodiment. FIG. 1 shows an example applied to a vehicle-mounted navigation device. In recent years, as a vehicle-mounted navigation device, a multifunction device in which a navigation device and an AV (Audio Visual) device cooperate with each other is the mainstream. Therefore, here, a vehicle-mounted navigation composite device in which the navigation device and the AV device cooperate with each other is illustrated. To explain.

  As shown in FIG. 1, the navigation device 1A receives the signals of the control unit 2 that controls the operation of the entire navigation device, the GPS receiver 3, and the self-contained navigation sensor 4, and obtains the current position and traveling direction of the host vehicle. A current position detection unit 5, a traffic information transmission / reception unit 6 that transmits / receives traffic information, and an information storage unit 7 that stores various types of information are provided.

  In addition, the navigation device 1A includes an information update unit 8 that updates information in the information storage unit 7 based on an instruction from the control unit 2, an information input unit 9 that receives external map information or AV information, and a user. Are provided with an instruction input unit 10 for receiving an instruction and a facility search unit 11 for searching for a desired facility and place. Further, the navigation device 1A includes a route calculation unit 12 that calculates a route that is desirable for reaching a point desired by the user, and a direction that should be advanced at a predetermined important point so that the user does not get lost during traveling. And a guidance guide unit 13 that provides guidance information.

  In addition, the navigation device 1A performs information processing for drawing a map or guidance information and performs information processing for visually providing settings of various functions of the navigation device 1A as menus. Based on the information processing result of the information drawing unit 14, the display control unit 15 that performs display control on the display 16, and the audio information such as AV information or guidance information is received and output from the speaker 18. Voice control unit 17.

  Below, each structure is explained in full detail.

  The GPS receiver 3 is for applying a satellite navigation system that measures the current position of the host vehicle using radio waves from GPS satellites. The self-contained navigation sensor 4 is for applying the self-contained navigation system by detecting the current position and direction of the own vehicle by various sensors. The self-contained navigation sensor 4 detects the direction of the own vehicle and detects the number of rotations of the wheel. It is comprised by the mileage sensor etc. which detect distance.

  The current position detection unit 5 receives signals from the GPS receiver 3 and the self-contained navigation sensor 4, uses a satellite navigation system and a self-contained navigation system in combination, and performs map matching based on the map information described later, This is for detecting the position and the traveling direction. Note that map matching refers to, for example, the road information of map information described later and the traveling locus of the host vehicle including right and left turns, and the most probable position is compared with the detected current position of the host vehicle. This is a method for determining the current position of In the present embodiment, a case is described in which a hybrid system that uses both a satellite navigation system and a self-contained navigation system is employed, but only one of the navigation systems may be employed.

  The traffic information transmitting / receiving unit 6 receives or transmits traffic information sequentially or at a predetermined timing. Specifically, the traffic information transmission / reception unit 6 receives traffic information (represented by VICS (registered trademark) (Vehicle Information & Communication System)) provided by FM multiplex broadcasting, radio wave beacons, and optical beacons. Yes, information including the traffic conditions of each road, traffic distance, traffic restrictions, travel time, etc. can be obtained.

  In recent years, DSRC (Dedicated Short Range Communication) is also being adopted as the traffic information transmission / reception unit 6, and various services can be used by the user by using it for two-way communication or one-way communication between the roadside device and the vehicle-mounted device. Can be provided to. The traffic information transmission / reception unit 6 functions as a transmitter for transmitting traffic information, for example, when transmitting information related to the host vehicle, for example, information called current position, travel speed, and other probe information.

  In addition, when not passing traffic information bidirectionally, the traffic information transmitting / receiving unit 6 can be replaced with a traffic information receiving unit.

  The information storage unit 7 stores information necessary for a navigation function or an entertainment function such as reproduction of music data. As a representative example, the information storage unit 7 and a map information storage unit 71 storing map information and voice or video or An AV information storage unit 72 that stores both pieces of information is provided.

  The map information storage unit 71 includes a plurality of map information corresponding to a predetermined scale as map information, and the map information includes map display information. Here, map display information includes “road information” about roads, “facility information” about facilities (type, name, position, etc.), “various character information” (location names, facility names, intersection names, road names, etc.), and It includes at least one of “various icon information” representing a facility / road number and the like, and is displayed on the display 16. In the map information storage unit 71, as map information, guidance information for use in the guidance guide unit 13 (position information of predetermined important points, drawing information at the relevant points, further voice guidance information, etc.), Alternatively, data information not displayed on the display 16 (for example, information expressing roads and intersections as lines and nodes called links, link costs as loads required to travel the link, or these Other various information).

  A typical example of the information storage unit 7 is an HDD (Hard Disk Drive), but other than this, a memory device using a semiconductor element may be used. Note that the map information or AV information stored in the information storage unit 7 can be changed, and can be updated, added, or deleted by the information update unit 8 in response to an instruction from the control unit 2.

  The information input unit 9 inputs map information or AV information to the navigation device 1A from the outside. That is, the information input unit 9 can be used to receive information from the outside and update the information in the information storage unit 7. Alternatively, the information input unit 9 can receive information from the outside and the information input unit 9 itself can function as the information storage unit 7.

  Here, the external information accepted by the information input unit 9 is map information and AV information. The information input unit 9 includes an insertion unit that receives a disk medium represented by a CD-ROM, a DVD, and the like including the above, and a semiconductor medium represented by an SD card, and the above-described information is obtained from the medium mounted on the insertion unit. Is to read. Note that the media information may be stored in the information storage unit 7, but the information input unit 9 may function as an information storage unit using the media information without providing the information storage unit 7. It is also conceivable that the information input unit 9 is a connection terminal such as a USB, and the connection terminal and a portable medium having information are directly or wiredly connected. Further, the portable media may include a portable music player or a device equipped with the function.

  The instruction input unit 10 receives an instruction from the user and inputs the instruction to the navigation device 1A. The instruction input unit 10 recognizes an instruction from a hardware switch provided in the navigation device 1A, a touch switch set and displayed on a display described later, or a remote control installed on a handle or the like or a separate remote control. Examples thereof include a device or a voice recognition device that recognizes an instruction by a user's voice.

  The facility search unit 11 searches the map information in the map information storage unit 71 based on the user's instruction received by the instruction input unit 10 to search for a desired facility and place. The search result by the facility search unit 11 is displayed on the display 16 or the like and presented to the user.

  The route calculation unit 12 calculates an optimum route (hereinafter referred to as a recommended route) from the current position of the host vehicle to a point set by the user (such as a destination or a waypoint). Specifically, the route calculation unit 12 includes the current position of the host vehicle acquired from the current position detection unit 5, the point information input from the instruction input unit 10, the map information obtained from the map information storage unit 71, and Calculate the recommended route based on. The calculated recommended route is displayed on the display 16 and presented to the user. As a method of route calculation by the route calculation unit 12, a known Dijkstra method for accumulating the link costs assigned to each link representing each road as a line segment and calculating a route having the minimum link cost is used. . The recommended routes that can be selected include the shortest route (shortest), the shortest required time (fastest), the cheapest route including toll road costs (low cost), and the best fuel efficiency. There are those that select a route (low fuel consumption) and those that have a good balance between time and cost (standard). Further, a plurality of routes may be presented in each option, for example, in the shortest. The multiple routes presented in this case are not necessarily the shortest of all routes, but are presented with a certain amount of tolerance. The same applies to other options (fastest, cheap, fuel efficient, standard, etc.).

  The guidance and guidance unit 13 takes a predetermined lane into consideration by taking a right or left turn ahead while traveling on a point that should change course such as an intersection or a branch road while traveling on a recommended route, a point that is easily mistaken, or a road that has multiple lanes. This is intended to assist the user in driving at predetermined points such as a point to guide the vehicle to change lanes. The guidance guide unit 13 obtains the current position of the host vehicle from the current position detection unit 5, obtains a recommended route from the route calculation unit 12, and obtains guidance information included in the map information from the map information storage unit 71. Then, when the host vehicle reaches the predetermined important point, for example, a predetermined distance of the intersection to be changed, for example, the direction to travel at the intersection is colored with an arrow or a road. For example, an instruction to output an enlarged guide map that is visually added and enlarged or enlarged and deformed. Alternatively, the guidance guide unit 13 visually gives a direction to proceed and instructs to output an actual image of the relevant point or an image similar thereto.

  The information drawing unit 14 is for instructing the display 16 to output drawing information for drawing various desired information such as characters and images. The information drawing unit 14 processes the above map information based on at least an instruction from the user. Thus, a map drawing unit 141 for drawing a desired map is included. The information drawing unit 14 includes a menu drawing unit 142 that manages the state of the menu screen and draws the menu screen.

  The map drawing unit 141 acquires necessary information from the map information storage unit 71, the current position detection unit 5, the facility search unit 11, the route calculation unit 12, the guidance guide unit 13, and the menu drawing unit 142, and displays them on the display 16. The power information is processed, and the processing result is output to the display control unit 15. Based on the output from the map drawing unit 141, the display control unit 15 outputs an instruction to draw a desired map on the display 16 connected to the display control unit 15. The display 16 draws desired information on the screen based on an instruction from the display control unit 15.

  The menu drawing unit 142 displays a menu based on a user instruction obtained from the instruction input unit 10, and instructs the display 16 to draw a desired menu via the display control unit 15. This menu drawing includes setting of a touch switch set on the display screen of the display 16, and when the user operates the touch switch, the operation is recognized by the instruction input unit 10. Yes.

  Further, the display control unit 15 can instruct to output the image information stored in the AV information storage unit 72 on the display 16.

  The voice control unit 17 can instruct the speaker 18 to output by receiving voice information from the guidance guide unit 13 and outputting the voice information. A plurality of speakers 18 are provided, and the voice control unit 17 controls to output guidance information from the speakers near the driver's seat. The speakers 18 are not necessarily the same, and the roles may be shared by speakers having different structures such as those that mainly output high sounds, those that mainly output medium sounds, and those that mainly output low sounds. Here, it is desirable that the speaker used for outputting the guidance information mainly outputs middle sounds in consideration of easy listening. Alternatively, in addition to the AV information output speaker 18, a speaker for outputting guidance information to the navigation device 1 </ b> A may be incorporated.

  The audio control unit 17 instructs the speakers 18 to output the audio information stored in the AV information storage unit 72 or the audio information obtained from the information input unit 9 with appropriate distribution. Furthermore, when the information obtained from the AV information storage unit 72 or the information input unit 9 includes both audio information and video information such as television broadcast and DVD, the audio control unit 17 transmits the audio information to the speaker 18. The display control unit 15 outputs the video information to the display 16 and cooperates to realize an entertainment function.

  The wireless communication unit 19 exchanges information with a portable information device such as a mobile phone or a portable tablet wirelessly such as Bluetooth (registered trademark) or wireless LAN (Local Area Network). The wireless communication unit 19 exchanges information such as map information, AV information or other information with an information center separately installed using the communication function of the portable information device, and is recorded in the portable information device. Used to send and receive AV information.

  In the above description, each representative function is described independently of the control unit 2, but each of these functions, for example, a current position detection unit 5, an information update unit 8, a facility search unit 11, a route search unit 12, the guidance guide part 13, the information drawing part 14, the display control part 15, and the audio | voice control part 17 may be incorporated in the control unit 2, and you may make it achieve these functions, for example with a microcomputer. The information drawing unit 14 and the display control unit 15 may be integrated.

  Further, the navigation device 1A may be an independent system that operates based on the map information stored in the map information storage unit 71. When necessary, the navigation device 1A obtains the necessary range of map information by communication, and obtains the obtained map information. A communication method may be used that is temporarily stored in an internal work memory device configured by a DRAM or the like.

  Next, the configuration of the navigation device 1A related to the present invention will be described in detail. FIG. 2 is a partial configuration diagram of the navigation device 1A.

  As shown in FIG. 2, the navigation apparatus 1 </ b> A receives a transmission signal from a wireless portable device (also referred to as “mobile device” or “mobile terminal”) 100 having a wireless communication function in the wireless communication unit 19. The wireless communication unit 19 identifies the mobile device 100 using an identifier (device ID or the like) unique to the mobile device 100 included in the transmission signal, and measures the signal strength of the received transmission signal from the mobile device 100. To do.

  The control unit 2 includes a CPU, a RAM, and the like, and includes a distance measurement unit 21, a measurement determination distance setting unit 22, a count candidate determination unit 23, a count candidate storage unit 24, a count unit 25, and a target The external setting storage unit 26, the count result storage unit 27, and the execution instruction unit 28 are included.

  The distance measuring unit 21 functions as a determination unit that determines whether or not the portable device 100 that has transmitted the signal exists in the vehicle based on the measured signal strength. The determination as to whether or not the portable device 100 that has transmitted the signal is present in the vehicle is performed by comparing the signal strength threshold stored in the measurement determination distance setting unit 22 with the measured signal strength.

  The counting candidate determination unit 23 registers the identifier of the portable device 100 determined to exist in the vehicle in the counting candidate storage unit 24 and stores the identifier of the portable device 100 determined to no longer exist in the vehicle as the counting candidate. It is deleted from the part 24.

  The counting unit 25 excludes the portable device 100 registered in the exclusion setting storage unit 26 from the candidates registered in the counting candidate storage unit 24, and removes the portable device 100 ("in-vehicle portable device" or " The number of mobile terminals is also counted. Note that the registration of the portable device 100 to be excluded from the exclusion setting storage unit 26 is performed in advance using the instruction input unit 10 or the like.

  The counting result storage unit 27 stores the number of in-vehicle portable devices counted by the counting unit 25.

  The execution instruction unit 28 issues an operation execution instruction according to the number of portable devices in the vehicle stored in the counting result storage unit 27.

[1-2. Operation]
Next, the operation of the navigation device 1A will be described. FIG. 3 is a flowchart showing the operation of the navigation device 1A.

  In the navigation device 1 </ b> A, the counting operation of the mobile device 100 is started when the navigation device 1 </ b> A is activated or by a start instruction using the instruction input unit 10.

  As shown in FIG. 3, in the counting operation of the mobile device 100, first, in step SP1, the count value of the mobile device 100 and the count candidate device list stored in the navigation device 1A are initialized.

  In step SP2, the wireless communication unit 19 performs signal reading processing. In the reading process, the wireless communication unit 19 identifies the mobile device 100 using an identifier (device ID or the like) unique to the mobile device 100 included in the transmission signal.

  In step SP3, the wireless communication unit 19 measures the strength of the received signal.

  In step SP4, the distance measuring unit 21 determines whether or not the portable device 100 that has transmitted the signal exists in the vehicle. If the received signal strength is equal to or greater than a preset threshold value, the distance measuring unit 21 determines that the mobile device 100 that has transmitted the signal is a device present in the vehicle. On the other hand, when the intensity of the received signal is smaller than a preset threshold, the distance measuring unit 21 determines that the portable device 100 that has transmitted the signal is a device that does not exist in the vehicle, that is, a device that exists outside the vehicle. To do.

  When it is determined that the portable device 100 that has transmitted the signal is a device that does not exist in the vehicle, the operation process proceeds to step SP7. On the other hand, when it is determined that the portable device 100 that has transmitted the signal is a device that exists in the vehicle, the operation process proceeds to step SP5.

  In step SP5, the counting candidate determination unit 23 determines whether or not the portable device 100 determined to be present in the vehicle is registered in the counting candidate storage unit 24 as a counting candidate. If it is already registered as a count candidate, the operation process moves to step SP7, and if not registered, that is, if it is not registered, the operation process moves to step SP6.

  In step SP6, the portable device 100 determined to be present in the vehicle is registered in the count candidate storage unit 24.

  In step SP7, the counting candidate determination unit 23 determines whether there is a mobile device 100 that does not exist in the vehicle among the counting candidates registered in the counting candidate storage unit 24. When there is no portable device 100 that does not exist in the vehicle among the registered counting candidates, the operation process moves to step SP9. On the other hand, when there is a portable device 100 that does not exist in the vehicle among the registered counting candidates, the operation process moves to step SP8.

  In step SP8, the portable device 100 that does not exist in the vehicle is deleted from the count candidate storage unit 24. In steps SP7 and SP8, among the count candidates registered in the count candidate storage unit 24, there is a count candidate for which a transmission signal is not received for a certain period of time specified according to the communication protocol with the mobile device 100. In this case, it is determined that the mobile device 100 is determined to be no longer present in the vehicle, and the mobile device 100 whose transmission signal is no longer received is deleted from the count candidate storage unit 24.

  After the above processing, in step SP9, the counting unit 25 performs a counting process for counting the number of portable devices 100 from the counting candidates registered in the counting candidate storage unit 24.

  Here, the count processing performed in the present embodiment will be described in detail. FIG. 4 is a flowchart showing details of the count process for counting the number of portable devices 100 from the count candidates.

  In the count process of step SP9 of FIG. 3, as shown in FIG. 4, each process of step SP21 to step SP23 is executed.

  Specifically, in step SP21, it is determined whether or not the counting candidates registered in the counting candidate storage unit 24 are registered as exclusion targets in the non-target setting storage unit 26. If it is registered as an exclusion target, the operation process moves to step SP23, and the count candidate is not counted. On the other hand, if it is not registered as an exclusion target, the operation process moves to step SP22, and “1” is added to the current count value.

  In step SP23, it is determined whether or not the counting process in steps SP21 to SP23 has been completed for all the counting candidates registered in the counting candidate storage unit 24. If there is an unprocessed count candidate that has not been counted, the operation process is shifted to step SP21, and steps SP21 to SP23 are repeatedly executed until the count process is completed for all count candidates. Is done.

  When the count process is completed for all the count candidates, the count value at the end time is stored in the count result storage unit 27 as the number of passengers.

  As described above, the navigation device 1A includes the wireless communication unit 19 that receives a transmission signal from the portable device 100 having a wireless communication function, and the mobile device that has transmitted the signal based on the reception signal received by the wireless communication unit 19. A distance measurement unit (determination means) 21 that determines whether or not the device is present in the vehicle, a counting unit 25 that counts the number of portable devices in the vehicle based on the determination result of the distance measurement unit 21; An execution instructing unit 28 for instructing to execute an operation according to the number counted by the counting unit 25 is provided.

  Then, the counting unit 25 determines whether or not the portable device 100 determined to be present in the vehicle is a portable device to be excluded from being counted by the counting unit 25, and the counting unit 25 is in the vehicle. If the mobile device 100 determined to exist is a mobile device to be excluded, the mobile device 100 determined to exist in the vehicle without counting the mobile device 100 determined to be in the vehicle as the number of mobile devices in the vehicle. However, when the mobile device is not an exclusion target mobile device, the mobile device 100 determined to be present in the vehicle is counted as the number of mobile devices in the vehicle.

  Thus, in the navigation apparatus 1A, counting is performed by excluding pre-registered portable devices, so even if one person has a plurality of portable devices 100, the portable device 100 having a wireless function can be used. The number of passengers on the vehicle can be specified with high accuracy by using the transmission signal.

  The number of passengers specified with high accuracy can be reflected in various navigation operations. A navigation operation according to the number of passengers is performed based on an execution instruction from the execution instruction unit 28.

  For example, the execution instruction unit 28 issues an execution instruction for presenting information to the user (user) according to the number of passengers.

  Thereby, for example, it is possible to perform route calculation and guidance guidance in consideration of roads with different passability or different passable lanes depending on the number of passengers.

  Also, if the number of passengers is used for the fee calculation, it is possible to convey an accurate fee to the user when traveling on roads with different fees according to the number of passengers.

  Also, when starting after stopping at a traffic light and when driving on a slope, the amount of fuel consumed varies greatly depending on the number of passengers. If there are a large number of passengers, search for roads with few traffic lights and slopes. It becomes possible.

  Also, if the number of passengers is large, the moment of inertia of the vehicle will increase, so lower the conditions for executing alarms (curve alarms) when approaching a curve while driving, or speeding up the warning timing of curve alarms It becomes possible.

  In addition, when the number of seat belt locks is less than the number of passengers, it is possible to issue a warning prompting the user to wear the seat belt.

  In addition, when the number of passengers is greater than the number of passengers, it is possible to warn of exceeding the capacity.

  Moreover, the execution instruction | indication part 28 performs the execution instruction | indication which adjusts the sound field in a vehicle according to the number of boarding persons. Thus, for example, when the number of passengers is one, only the driver is judged and the sound field setting of the AV is given priority to the driver's seat, and when there are three or more passengers, both the front and rear seats are boarded Therefore, it is possible to set the AV sound field to all seats.

  Further, information on the number of passengers may be notified to the vehicle side, and the number of passengers may be used for vehicle control such as brake assist.

<2. Second Embodiment>
Next, a second embodiment will be described. The navigation device 1B according to the second embodiment has substantially the same structure and function as the navigation device 1A of the first embodiment, except that the counting method performed in step SP9 of FIG. 3 is different. Description of common parts is omitted.

  In the non-target setting storage unit 26 of the navigation device 1B of the second embodiment, a set of a plurality of portable devices 100 (a combination of a plurality of portable devices 100) is registered in advance. Then, the counting unit 25 of the navigation device 1B counts the counting candidates included in the combination of the plurality of portable devices 100 so as to count “1” for the entire combination. Note that the registration of a set of a plurality of portable devices 100 in the non-target setting storage unit 26 is performed in advance using the instruction input unit 10 or the like.

  Below, the detail of the count process performed by the counting part 25 of the navigation apparatus 1B is demonstrated. FIG. 5 is a flowchart showing details of the counting process executed by the navigation device 1B according to the second embodiment.

  In the counting process of the second embodiment, as shown in FIG. 5, the steps SP31 to SP34 are executed.

  Specifically, in step SP31, it is determined whether or not the count candidate registered in the count candidate storage unit 24 is a combination registration target device registered in the non-target setting storage unit 26. When it is determined that the count candidate is not the target device for combination registration, the operation process proceeds to step SP32.

  In step SP32, “1” is added to the current count value, and the count is performed. On the other hand, when it is determined in step SP31 that the count candidate is a target device for combination registration, the operation process proceeds to step SP33.

  In step SP33, it is determined whether or not the counting for the combination to which the counting candidate belongs has been completed. When it is determined that the counting for the combination to which the counting candidate belongs has not been completed, the operation process moves to step SP32, and counting is performed.

  On the other hand, when it is determined that the counting for the combination to which the counting candidate belongs has been completed, the operation process moves to step SP34, and the counting of the counting candidate is not performed.

  In step SP34, it is determined whether or not the counting process in steps SP31 to SP34 has been completed for all the counting candidates registered in the counting candidate storage unit 24. If there is an unprocessed count candidate that has not been counted, the operation process is shifted to step SP31, and steps SP31 to SP34 are repeatedly executed until the count process is completed for all count candidates. Is done.

  When the count process is completed for all the count candidates, the count value at the end time is stored in the count result storage unit 27 as the number of passengers.

  As described above, the counting unit 25 of the navigation device 1B determines whether or not the mobile device 100 determined to be present in the vehicle is included in a group of a plurality of pre-registered mobile devices, and is present in the vehicle. When it is determined that the determined mobile device 100 is not included in the set of the plurality of mobile devices 100, the mobile device 100 determined to be present in the vehicle is counted as the number of mobile devices in the vehicle, and determined to be present in the vehicle. When it is determined that the mobile device 100 is included in the set of the plurality of mobile devices 100, if any of the plurality of mobile devices 100 has been counted, the mobile device 100 determined to be present in the vehicle is When the mobile device 100 is not counted as the number of mobile devices in the vehicle and none of the mobile devices 100 is counted, the mobile device 100 determined to be present in the vehicle is To count as the number of portable devices.

  In the method of counting by excluding the designated mobile device 100, if only the mobile device 100 that is specified to be excluded is possessed among the mobile devices 100 that are specified to be excluded and the mobile device 100 that is not specified to be excluded, It cannot be specified.

  However, like the navigation device 1B of the present embodiment, for the counting candidates included in the combination of the plurality of mobile devices 100, the combination designation is performed by counting so that “1” is counted for the entire combination. If one or more of the plurality of portable devices 100 are possessed, the number of passengers can be correctly identified, so that the number of people on the vehicle can be accurately identified.

<3. Third Embodiment>
Next, a third embodiment will be described. In the navigation apparatus 1C according to the third embodiment, the count process in which the count process (FIG. 4) performed in step SP9 of the first embodiment and the count process (FIG. 5) performed in step SP9 of the second embodiment are combined. Is executed. For this reason, the navigation device 1C has substantially the same structure and function as the navigation device 1A of the first embodiment, and a description of common parts is omitted.

  In the non-target setting storage unit 26 of the navigation device 1C of the third embodiment, a mobile device 100 to be excluded and a set of a plurality of mobile devices 100 (a combination of a plurality of mobile devices 100) are registered in advance. . The counting unit 25 of the navigation device 1 </ b> C avoids counting for the count candidate to be excluded, and for the count candidates included in the combination of the plurality of mobile devices 100, “1” for the entire combination. ”Is counted.

  Below, the detail of the count process performed by the counting part 25 of 1 C of navigation apparatuses is demonstrated. FIG. 6 is a flowchart showing details of the counting process executed by the navigation device 1C according to the third embodiment.

  In the counting process of the third embodiment, as shown in FIG. 6, steps SP41 to SP45 are executed.

  Specifically, in step SP41, it is determined whether or not the counting candidates registered in the counting candidate storage unit 24 are registered as exclusion targets in the non-target setting storage unit 26. If registered as an exclusion target, the operation process moves to step SP45, and the count candidate is not counted. On the other hand, when it is not registered as an exclusion target, the operation process moves to step SP42.

  In step SP42, it is determined whether or not the counting candidate registered in the counting candidate storage unit 24 is a combination registration target device registered in the non-target setting storage unit 26. When it is determined that the count candidate is not the target device for combination registration, the operation process proceeds to step SP43.

  In step SP43, “1” is added to the current count value, and the count is performed.

  On the other hand, when it is determined in step SP42 that the count candidate is a target device for combination registration, the operation process proceeds to step SP44.

  In step SP44, it is determined whether or not the counting for the combination to which the counting candidate belongs has been completed. When it is determined that the counting for the combination to which the counting candidate belongs has not been completed, the operation process moves to step SP43, and the counting is performed.

  On the other hand, when it is determined that the counting for the combination to which the counting candidate belongs has been completed, the operation process moves to step SP45, and the counting of the counting candidate is not performed.

  In step SP45, it is determined whether or not the counting process in steps SP41 to SP45 has been completed for all the counting candidates registered in the counting candidate storage unit 24. When there is an unprocessed count candidate that has not been counted, the operation process moves to step SP41, and the processes of steps SP41 to SP45 are repeatedly executed until the count process is completed for all count candidates. Is done.

  When the count process is completed for all the count candidates, the count value at the end time is stored in the count result storage unit 27 as the number of passengers.

  As described above, in the navigation apparatus 1C, counting is performed by excluding pre-registered portable devices that are registered in advance, and the counting candidates included in the combination of the plurality of portable devices 100 are “ Count to count “1”.

  According to this, for example, even when a certain person possesses a shared portable device 100 that cannot be identified as an individual lent by a company and a plurality of personally owned portable devices 100, the shared portable device 100 If the device 100 is registered in advance as a device to be excluded and a plurality of personally-owned mobile devices 100 are registered in advance as a combination of the plurality of mobile devices 100, the number of passengers in the vehicle can be specified with high accuracy. it can.

<4. Modification>
Although the embodiment has been described above, the present invention is not limited to the content described above.

  For example, in each of the above embodiments, it is determined whether or not the mobile device 100 that has transmitted the signal is present in the vehicle based on the strength of the received signal, but the present invention is not limited to this.

  Specifically, when the transmission signal is received even if the reception operation is performed at different points or with a time difference, it may be determined that the mobile device 100 that has transmitted the signal exists in the vehicle. Alternatively, the mobile device 100 to be received may be registered in advance, and when the transmission signal of the reception target mobile device is received, it may be determined that the reception target mobile device exists in the vehicle. According to each of these determination methods, it is possible to prevent an erroneous determination when a transmission signal from a portable device that does not exist in the vehicle is received unintentionally.

  In the second embodiment and the third embodiment, there may be a plurality of sets of the plurality of portable devices 100 registered in the non-target setting storage unit 26.

  In this case, the counting unit 25 determines whether or not the portable device 100 determined to be present in the vehicle is included in any of the plurality of sets.

  And when it determines with the portable apparatus determined to exist in a vehicle not being contained in any of several sets, the portable apparatus determined to exist in a vehicle is counted as the number of portable apparatuses in a vehicle. On the other hand, when it is determined that the portable device determined to be present in the vehicle is included in any of the plurality of sets, the counting unit 25 includes the portable device determined to be present in the vehicle (specific set). When the counting of minutes has ended, the mobile devices that are determined to be present in the vehicle are not counted as the number of mobile devices in the vehicle, and when the counting for a specific group is not completed, it is determined that they are present in the vehicle. Mobile devices are counted as the number of mobile devices in the car.

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

  1, 1A, 1B Navigation device, 2 control unit, 21 distance measurement unit, 22 measurement determination distance setting unit, 23 measurement candidate determination unit, 24 count candidate storage unit, 25 counting unit, 26 non-target setting storage unit, 27 count result Storage unit, 28 execution instruction unit, 100 portable device.

Claims (7)

A navigation device that moves with a car,
Receiving means for receiving a transmission signal from a portable device having a wireless communication function;
Based on whether or not the reception intensity of the transmission signal received by the reception means is equal to or greater than a predetermined threshold value, it is determined whether or not the portable device that has transmitted the transmission signal exists in the vehicle. A determination means;
Counting means for counting the number of in-vehicle portable devices present in the vehicle based on the determination result of the determining means;
Instruction means for instructing execution of an operation according to the number counted by the counting means;
With
The counting means includes
Determining whether the portable device determined to be present in the vehicle is a portable device to be excluded from being counted by the counting means;
The counting means includes
When the portable device determined to be present in the vehicle is the portable device to be excluded, the portable device determined to be present in the vehicle is not counted as the number of portable devices in the vehicle, and is determined to be present in the vehicle. The navigation apparatus which counts the portable device determined to exist in the vehicle as the number of the portable devices in the vehicle when the portable device is not the excluded portable device.   The navigation device according to claim 1, wherein the instruction unit issues the execution instruction for presenting information to a user according to the number of portable devices counted by the counting unit.   The navigation device according to claim 1, wherein the instruction unit performs the execution instruction to adjust a sound field in a vehicle according to the number of portable devices counted by the counting unit. Receiving means for receiving a transmission signal from a portable device having a wireless communication function;
Determination means for determining whether or not the portable device that has transmitted the transmission signal exists in the vehicle based on the transmission signal received by the reception means;
Counting means for counting the number of in-vehicle portable devices present in the vehicle based on the determination result of the determining means;
Instruction means for instructing execution of an operation according to the number counted by the counting means;
With
The counting means includes
Determining whether the portable device determined to be present in the vehicle is included in a set of a plurality of pre-registered portable devices;
When it is determined that the mobile device determined to be present in the vehicle is not included in the set of the plurality of mobile devices, the mobile device determined to be present in the vehicle is counted as the number of mobile devices in the vehicle,
When it is determined that a mobile device determined to be present in the vehicle is included in the set of the plurality of mobile devices, if any of the plurality of mobile devices has been counted, it is determined to be present in the vehicle. When the mobile device is not counted as the number of mobile devices in the vehicle and none of the plurality of mobile devices is counted, the mobile device determined to be present in the vehicle is used as the number of mobile devices in the vehicle. Navigation device to count.   The navigation device according to claim 4, wherein the plurality of portable devices are portable devices carried by the same person. A plurality of sets of the portable devices are registered in advance,
The counting means determines whether or not a portable device determined to be present in the vehicle is included in any of the plurality of sets;
When it is determined that the mobile device determined to be present in the vehicle is not included in any of the plurality of sets, the mobile device determined to be present in the vehicle is counted as the number of mobile devices in the vehicle. ,
When it is determined that the mobile device determined to be present in the vehicle is included in any of the plurality of sets, the counting for the specific group including the mobile device determined to be present in the vehicle has been completed. When the portable device determined to be present in the vehicle is not counted as the number of portable devices in the vehicle, and the counting for the specific group is not completed, the portable device determined to be present in the vehicle The navigation device according to claim 4 or 5, wherein the number is counted as the number of portable devices in the vehicle. Receiving means for receiving a transmission signal from a portable device having a wireless communication function;
Determination means for determining whether or not the portable device that has transmitted the transmission signal exists in the vehicle based on the transmission signal received by the reception means;
Counting means for counting the number of in-vehicle portable devices present in the vehicle based on the determination result of the determining means;
Instruction means for instructing execution of an operation according to the number counted by the counting means;
With
The counting means includes
Determining whether the portable device determined to be present in the vehicle is a portable device to be excluded from being counted by the counting means;
If the portable device determined to be present in the vehicle is the exclusion-target portable device, the portable device determined to be present in the vehicle is not counted as the number of portable devices in the vehicle,
The counting means includes
If the portable device determined to be present in the vehicle is not the excluded portable device, whether or not the portable device determined to be present in the vehicle is included in a set of a plurality of pre-registered portable devices. Judgment,
When it is determined that the mobile device determined to be present in the vehicle is not included in the set of the plurality of mobile devices, the mobile device determined to be present in the vehicle is counted as the number of mobile devices in the vehicle,
When it is determined that a mobile device determined to be present in the vehicle is included in the set of the plurality of mobile devices, if any of the plurality of mobile devices has been counted, it is determined to be present in the vehicle. When the mobile device is not counted as the number of mobile devices in the vehicle and none of the plurality of mobile devices is counted, the mobile device determined to be present in the vehicle is used as the number of mobile devices in the vehicle. Navigation device to count.

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