JP2020003260A - Navigation device and navigation program - Google Patents

Abstract

To notify for each occupant a region that is a threat when setting a destination or when setting a route.SOLUTION: An occupant information acquisition unit 14 acquires occupant information relating to occupants aboard a vehicle. A destination route search unit 12 searches for a candidate for a destination or a candidate for a route to the destination. A public security information acquisition unit 17 refers to a public security information database 6 that stores public security information at each location, and acquires public security information that corresponds to the candidate for the destination or the candidate for the route to the destination searched by the destination route search unit 12. A risk calculation unit 19 calculates, using the occupant information acquired by the occupant information acquisition unit 14 and the public security information acquired by the public security information acquisition unit 17, a risk to the candidate for the destination or the candidate for the route to the destination that corresponds to the occupant. A display unit 20 displays the risk calculated by the risk calculation unit 19.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a navigation device and a navigation program.

  The navigation apparatus according to Patent Literature 1 notifies an occupant by notifying an area to be avoided, a reason for avoidance, a degree of necessity of avoidance, and the like on a route setting screen based on avoidance area information in consideration of a social situation and security. Was able to avoid areas at risk when setting routes.

JP-A-2002-156236

  Conventional navigation devices generally provide an area determined to be necessary to avoid as the avoidance area information regardless of the occupant, so the occupant does not voluntarily control whether to provide the evasion area information. As far as possible, there has been a problem that not only information necessary for the passenger but also unnecessary information is provided. In addition, there is another problem that the information that should be provided is not provided unintentionally due to the control of whether or not the passenger provides the avoidance area information.

  The present invention has been made to solve the above-described problem, and has an object to notify a threat area for each passenger.

  A navigation device according to the present invention includes a passenger information acquiring unit that acquires passenger information relating to a passenger in a vehicle, and a destination route searching unit that searches for a candidate for a destination or a route to a destination. And security information that refers to a security information database that stores security information for each position and obtains security information corresponding to a destination candidate or a route candidate to the destination searched by the destination route search unit. Using the acquisition unit and the passenger information acquired by the passenger information acquisition unit and the security information acquired by the security information acquisition unit, a candidate for a destination or a candidate for a route to the destination according to the passenger is obtained. It has a risk calculation unit for calculating a risk, and a display unit for displaying the risk calculated by the risk calculation unit.

  According to the present invention, the risk of the destination candidate or the route candidate to the destination according to the passenger is calculated, so that the threat area can be notified for each passenger.

FIG. 2 is a block diagram illustrating a configuration example of a navigation device according to the first embodiment. 6 is a flowchart illustrating an operation example of the navigation device according to the first embodiment. 3 is a flowchart illustrating a detailed operation example of steps ST3 and ST8 in FIG. 2. FIG. 5 is a diagram showing a display example of destination candidates according to the first embodiment. FIG. 7 is a diagram showing a display example of security information when a destination candidate is selected in the first embodiment. FIG. 5 is a diagram showing a display example of route candidates according to the first embodiment. FIG. 5 is a diagram showing a display example of security information at the time of selecting a route candidate according to the first embodiment. FIG. 2 is a diagram illustrating an example of a hardware configuration of the navigation device according to the first embodiment.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration example of the navigation device 10 according to the first embodiment. The navigation device 10 is mounted on a vehicle or brought into a vehicle. The navigation device 10 can access the passenger information DB (Database) 5 and the security information DB 6 outside the vehicle via a network by wireless communication performed by the communication unit 18. Further, the navigation device 10 is connected to at least one of a seat belt sensor 1, a pressure sensor 2, a fingerprint scanner 3, and a camera 4 mounted on a vehicle.

  The seat belt sensor 1 mounted on each seat of the vehicle detects whether or not the occupant is wearing a seat belt, and outputs the detection result to the occupant identification unit 13. The pressure sensor 2 mounted on each seat of the vehicle detects whether or not the occupant is sitting on the seat, and outputs the detection result to the occupant identification unit 13. The fingerprint scanner 3 mounted on each seat of the vehicle scans the fingerprint of the occupant and outputs the scan result to the occupant identification unit 13. The camera 4 mounted in the vehicle captures an image of the occupant in each seat, and outputs the captured image to the occupant identification unit 13.

The passenger information DB 5 stores information on the passenger (hereinafter, referred to as “passenger information”) for each passenger. The passenger information includes at least one of the passenger's sex, age, physique, traveling history, occupation, or security capability. Since the passenger information DB 5 exists outside the vehicle, even if a user who uses a shared car or the like and does not own a specific vehicle changes the vehicle to be boarded, the navigation device 10 acquires the passenger information of the user. be able to.
The passenger information DB 5 may be built in the navigation device 10 instead of outside the vehicle.

  The security information DB 6 stores the latest security information. The security information includes the location, the type of crime or the like that has occurred at the location, the number of occurrences of the crime or the like, and the like. The position included in the security information is not limited to information indicating a point, but may be information indicating an area. Since the security information DB 6 exists outside the vehicle, the navigation device 10 can always acquire the latest security information.

  The navigation device 10 includes an input unit 11, a destination route search unit 12, a passenger identification unit 13, a passenger information acquisition unit 14, a vehicle information storage unit 15, a vehicle information acquisition unit 16, a security information acquisition unit 17, and a communication unit 18. , A risk calculation unit 19 and a display unit 20.

  The input unit 11 receives information such as a destination input by a passenger and outputs the received information to the destination route search unit 12. Further, the input unit 11 may receive the passenger information input by the passenger and output the information to the passenger information acquiring unit 14.

The destination route search unit 12 refers to a map DB (not shown) and searches for one or more destination candidates corresponding to the destination information received by the input unit 11. The destination route search unit 12 refers to a map DB (not shown) and searches for one or more route candidates from the current location to the destination. The destination route search unit 12 outputs the destination candidate and the route candidate to the destination to the security information acquisition unit 17 and the risk calculation unit 19.
The map DB storing the map may be built in the navigation device 10 or may be a storage medium such as a DVD (Digital Versatile Disc), and may be provided outside the vehicle as in the passenger information DB5 and the security information DB6. May be present.

  The occupant identification unit 13 receives at least one of the detection result of the seat belt sensor 1, the detection result of the pressure sensor 2, the scan result of the fingerprint scanner 3, or the image captured by the camera 4. The occupant identification unit 13 identifies each occupant in the vehicle using the scan result of the fingerprint scanner 3 or the image captured by the camera 4 and outputs the identification result to the occupant information acquisition unit 14. The occupant identification unit 13 determines the number of occupants in the vehicle using the detection result of the seat belt sensor 1 or the pressure sensor 2 or an image captured by the camera 4. Further, the occupant identification unit 13 uses the image captured by the camera 4 to determine at least one of the gender, physique, and age of each occupant in the vehicle. The occupant identification unit 13 outputs to the occupant information acquisition unit 14 the number of occupants and the occupant information including at least one of the gender, physique, or age of each occupant.

The occupant information acquisition unit 14 receives from the occupant identification unit 13 the number of occupants in the vehicle, the identification result of each occupant, and the occupant information. Note that the occupant information acquisition unit 14 may acquire the occupant information of each occupant in the vehicle from the occupant information DB 5 via the communication unit 18 using the identification result of each occupant. Good. The occupant information acquisition unit 14 may acquire at least one of the gender, age, physique, travel history, occupation, or security capability of the occupant input to the input unit 11 by the occupant. The occupant information acquisition unit 14 outputs the occupant information acquired from the occupant identification unit 13 or the input unit 11 to the risk calculation unit 19.
The passenger information acquiring unit 14 may register the passenger information acquired from the passenger identifying unit 13 or the input unit 11 in the passenger information DB 5 via the communication unit 18.

The vehicle information storage unit 15 stores information on vehicles (hereinafter, referred to as “vehicle information”). The vehicle information includes at least one of information indicating a vehicle body price of the vehicle and information indicating a security capability. The information indicating the vehicle body price may be the vehicle body price itself, or may be the vehicle type and the years of use. The information indicating the security capability is at least one of body strength, glass material, and body size. This vehicle information is registered in the vehicle information storage unit 15 when the vehicle is manufactured. Alternatively, the vehicle information may be registered in the vehicle information storage unit 15 by the passenger of the vehicle operating the input unit 11.
Note that the vehicle information storage unit 15 does not need to be built in the navigation device 10 and may be provided in the vehicle.

  The vehicle information acquisition unit 16 acquires the vehicle information from the vehicle information storage unit 15 and outputs the vehicle information to the risk calculation unit 19.

  The security information acquisition unit 17 receives the destination candidate and the route candidate to the destination from the destination route search unit 12. The security information acquisition unit 17 acquires the security information at the position corresponding to the destination candidate from the security information DB 6 via the communication unit 18. In addition, the security information acquisition unit 17 acquires the security information of the position corresponding to the route candidate to the destination from the security information DB 6 via the communication unit 18. The security information acquisition unit 17 outputs the security information acquired from the security information DB 6 to the risk calculation unit 19.

  The risk calculation unit 19 receives the occupant information from the occupant information acquisition unit 14, receives the vehicle information from the vehicle information acquisition unit 16, and receives the security information from the security information acquisition unit 17. The risk calculating unit 19 receives from the destination route searching unit 12 the destination candidate, the destination selected by the passenger, the route candidate to the destination, and the route selected by the passenger. Then, the risk calculating unit 19 uses at least one of the passenger information or the vehicle information and the security information, and according to at least one of the passenger and the vehicle, the risk of the candidate destination and the candidate of the route to the destination. Is calculated. The risk calculation unit 19 outputs to the display unit 20 information about the calculated risk of the destination candidate and information about the calculated risk of the route candidate.

  The display unit 20 receives from the risk calculation unit 19 information on the risk of the destination candidate and information on the risk of the route candidate. The display unit 20 displays a risk of a destination candidate, a risk of a route candidate to the destination, and the like.

Next, an operation example of the navigation device 10 according to the first embodiment will be described.
FIG. 2 is a flowchart illustrating an operation example of the navigation device 10 according to the first embodiment. FIG. 3 is a flowchart showing a detailed operation example of steps ST3 and ST8 in FIG.
Here, an example in which both the passenger information and the vehicle information are used for risk calculation will be described.

  In step ST1, the destination route search unit 12 refers to a map DB (not shown) and searches for one or more destination candidates corresponding to the destination information received by the input unit 11.

  In step ST <b> 2, the security information acquisition unit 17 acquires security information at a position that matches the destination candidate searched by the destination route search unit 12 from the security information DB 6 via the communication unit 18.

  In step ST3, the risk calculation unit 19 calculates a risk of a destination candidate according to the passenger and the vehicle for each destination candidate using the passenger information, the vehicle information, and the security information.

  Here, an example of risk calculation in step ST3 will be described with reference to the flowchart in FIG. In step ST11, the occupant information acquisition unit 14 acquires occupant information from the input unit 11, from the occupant identification unit 13, or from the occupant information DB 5 via the communication unit 18. In step ST12, the vehicle information acquisition unit 16 acquires vehicle information from the vehicle information storage unit 15. In step ST13, the risk calculation unit 19 includes the security information acquired by the security information acquisition unit 17 in step ST2, the passenger information acquired by the passenger information acquisition unit 14 in step ST11, and the vehicle information acquisition unit 16 acquired in step ST12. Calculates the risk for each destination candidate by using the obtained vehicle information.

  For example, when the passenger is a woman, the risk calculator 19 increases the risk value. On the other hand, when the occupant is a male, the risk calculation unit 19 does not increase the risk value or lowers the risk value depending on the type of crime. Further, for example, the risk calculation unit 19 increases the risk value when the occupant is a young or old age group, and lowers the risk value otherwise. In addition, for example, the risk calculation unit 19 increases the risk value when the physique of the occupant is the standard physique, and decreases the risk value when the physique of the occupant is muscular and is larger than the standard physique. Further, for example, the risk calculating unit 19 increases the risk value as the number of passengers decreases, and decreases the risk value as the number of passengers increases. Further, for example, the risk calculation unit 19 uses the traveling history of the passenger, and when the number of times of travel at the position where the security information exists is small, the risk determination unit 19 determines that the passenger has no intuition about the land and raises the risk value, and increases the security information. If the number of times of travel at the position where is present is large, the passenger determines that there is a sense of land and lowers the risk value. Further, for example, when the occupant's occupation is a military person, a fighter, a police officer, or the like, the risk calculating unit 19 determines that the occupant is resistant to crimes such as robbery or kidnapping, and lowers the risk value. The increase and decrease of the risk value may be arbitrary.

  Further, for example, when the vehicle body price of the vehicle is high, the risk calculation unit 19 determines that the vehicle is likely to be a target of robbery, and raises the risk value. Further, for example, the risk calculation unit 19 increases the risk value when the vehicle has been used for a short period of time, and decreases the risk value when the vehicle has been long for a long period of time, judging that the vehicle value has decreased. For example, when the vehicle has normal tempered glass, the risk calculating unit 19 increases the risk value, and when the vehicle has armored or bulletproof glass, the risk calculating unit 19 determines that the security performance of the vehicle is high and lowers the risk value.

  Further, the risk calculation unit 19 may have a predetermined condition for each type of crime included in the security information, and may increase the risk value as more passenger information and vehicle information satisfy this condition. For example, when the gender of the passenger is a woman in her early twenties, the risk calculation section 19 sets the risk value to the maximum value “100” for sexual crimes such as rape. On the other hand, if the number of passengers is three, and two of them are men in their early twenties and one is a woman in their early twenties, the risk calculation unit 19 calculates a risk value for sexual crimes such as rape. It is calculated as low as “25”. Further, for example, if the vehicle body price of the vehicle is high, the body strength and the body size are normal, the glass material is normal tempered glass, and the service life is one year, The risk value is set to the maximum value “100”. On the other hand, when the vehicle price is high, the vehicle has armor and bulletproof glass, the vehicle size is large, and the service life is one year, the risk calculation unit 19 sets the risk value to “30” for crimes such as robbery. Is calculated low.

  When a plurality of security information items exist for one destination candidate, for example, the risk calculation unit 19 calculates a risk value for each security information item, sums the risk values calculated for each security information item, The total value is set as the risk value of the one destination candidate.

  In step ST4, the display unit 20 displays the risk for each destination candidate calculated by the risk calculation unit 19.

  FIG. 4 is a diagram illustrating a display example of destination candidates according to the first embodiment. In the example of FIG. 4, the names of the destination candidates “〇〇〇〇〇〇〇〇〇” and the like and the risk “30” and the like are displayed in a list. The higher the risk value, the higher the risk for the occupant and the vehicle. In the example of FIG. 4, the display unit 20 arranges the destination candidates in descending order of the risk. Alternatively, the display unit 20 may arrange the destination candidates in descending order of the risk.

  FIG. 5 is a diagram showing a display example of security information when a destination candidate is selected in the first embodiment. When the passenger selects one destination candidate from the destination candidates, this information is passed to the risk calculation unit 19 via the input unit 11 and the destination route search unit 12. The risk calculation unit 19 outputs to the display unit 20 the destination candidate selected by the passenger and one or more pieces of security information that pose a risk to the passenger and the vehicle in the destination candidate. The display unit 20 displays, on a map obtained from a map DB (not shown), an area to be a risk target (the shaded area in FIG. 5) for the destination candidate (“G” in FIG. 5) received from the risk calculation unit 19, Security information indicating the content of risk in this area is displayed. The security information displayed on the map is, for example, characters of the type of crime and the number of occurrences such as “100 removals occur in one year”. The passenger can select an optimal destination in consideration of the risk for each destination candidate by referring to the displays in FIGS. 4 and 5.

  In step ST5, the destination route search unit 12 sets a destination candidate selected by the passenger from one or more destination candidates as a destination of the vehicle.

  In step ST6, the destination route search unit 12 searches for one or more route candidates from the current location to the destination set in step ST5 with reference to a map DB (not shown).

  In step ST <b> 7, the security information at a position that matches the route candidate searched by the destination route search unit 12 is acquired from the security information DB 6 via the communication unit 18.

  In step ST8, the risk calculation unit 19 calculates a risk of a route candidate according to the occupant and the vehicle for each of the route candidates using the occupant information, the vehicle information, and the security information. The risk calculation method in step ST8 is substantially the same as step ST3.

  In step ST9, the display unit 20 displays the risk for each route candidate calculated by the risk calculation unit 19.

  FIG. 6 is a diagram illustrating a display example of route candidates according to the first embodiment. In the example of FIG. 6, the route candidates “A” and the like and the risk “30” and the like are displayed in a list. In addition, the display unit 20 may arrange the route candidates in the order of low or high risk. In the example of FIG. 6, the display unit 20 displays the route candidates (“A” to “E” in FIG. 6) received from the risk calculation unit 19 on the map acquired from the map DB (not shown) and the respective routes. Area (the hatched area in FIG. 6) that is a risk target for the candidate is displayed. “S” in FIG. 6 is the current location, and “G” is the destination.

  FIG. 7 is a diagram showing a display example of security information at the time of selecting a route candidate according to the first embodiment. When the passenger selects one route candidate from the route candidates, this information is passed to the risk calculating unit 19 via the input unit 11 and the destination route searching unit 12. The risk calculation unit 19 outputs to the display unit 20 the route candidate selected by the passenger and one or more pieces of security information that pose a risk to the passenger and the vehicle in the route candidate. In the example of FIG. 7, the route candidate “C” is selected. The display unit 20 displays, on a map acquired from a map DB (not shown), an area to be a risk target (a hatched area in FIG. 7) for the route candidate (“C” in FIG. 7) received from the risk calculation unit 19, The security information indicating the risk content of the area is displayed. The security information displayed on the map is, for example, characters of the type of crime and the number of occurrences such as “100 removals occur in one year”. By referring to the displays in FIGS. 6 and 7, the passenger can select an optimal route in consideration of the risk for each route candidate.

  In step ST10, the destination route search unit 12 sets a route candidate selected by a passenger from one or more route candidates as a planned traveling route of the vehicle.

  Lastly, a hardware configuration of the navigation device 10 according to the first embodiment will be described. FIG. 8 is a diagram illustrating a hardware configuration example of the navigation device 10 according to the first embodiment. The vehicle information storage unit 15 in the navigation device 10 is the memory 102. The input unit 11 in the navigation device 10 is an input device such as the touch panel 103. The display unit 20 of the navigation device 10 is a display 104. The communication unit 18 in the navigation device 10 is a communication device 105.

  The functions of the destination route search unit 12, the passenger identification unit 13, the passenger information acquisition unit 14, the vehicle information acquisition unit 16, the security information acquisition unit 17, and the risk calculation unit 19 in the navigation device 10 are controlled by a processing circuit. Is achieved. That is, the navigation device 10 includes a processing circuit for realizing the above functions. The processing circuit is the processor 101 that executes a program stored in the memory 102.

  The functions of the destination route search unit 12, the passenger identification unit 13, the passenger information acquisition unit 14, the vehicle information acquisition unit 16, the security information acquisition unit 17, and the risk calculation unit 19 are software, firmware, or software and firmware. Are realized by a combination of Software or firmware is described as a program and stored in the memory 102. The processor 101 reads out and executes a program stored in the memory 102 to realize the function of each unit. That is, the navigation device 10 includes the memory 102 for storing a program that, when executed by the processor 101, results in the steps shown in the flowchart of FIG. In addition, this program stores the procedure or method of the destination route search unit 12, the passenger identification unit 13, the passenger information acquisition unit 14, the vehicle information acquisition unit 16, the security information acquisition unit 17, and the risk calculation unit 19 in a computer. It can also be said to be executed.

Here, the processor 101 is a CPU (Central Processing Unit), a processing device, an arithmetic device, a microprocessor, or the like.
The memory 102 may be a nonvolatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), or a flash memory, or a hard disk or a flexible disk. May be used, or an optical disk such as a CD (Compact Disc) or a DVD may be used.

  As described above, the navigation device 10 according to the first embodiment includes the occupant information acquisition unit 14, the destination route search unit 12, the security information acquisition unit 17, the risk calculation unit 19, and the display unit 20. Prepare. The occupant information acquisition unit 14 acquires occupant information on the occupant in the vehicle. The destination route search unit 12 searches for a destination candidate or a route candidate to the destination. The security information acquisition unit 17 refers to the security information DB 6 that stores security information for each position, and refers to the security candidate corresponding to the destination candidate searched for by the destination route search unit 12 or the route candidate to the destination. Get information. The risk calculation unit 19 uses the passenger information acquired by the passenger information acquisition unit 14 and the security information acquired by the security information acquisition unit 17 to determine a destination candidate or a destination according to the passenger. Calculate the risk of route candidates. The display unit 20 displays the risk calculated by the risk calculation unit 19. Thus, the navigation device 10 can notify the occupant of the threatening area for each occupant, and can avoid guidance to the harmful area for the occupant.

  In addition, the display unit 20 according to the first embodiment displays on the map the candidate of the destination or the candidate of the route to the destination, and the area which is the target of the risk calculated by the risk calculating unit 19. This allows the passenger to intuitively grasp the threatening area.

  In addition, the display unit 20 according to the first embodiment displays the risk content of the destination candidate or the route candidate to the destination, that is, security information in characters. Thereby, the passenger can grasp detailed security information on the threatening area.

  Note that, in the present invention, within the scope of the invention, any constituent element of the embodiment can be modified or any constituent element of the embodiment can be omitted.

  1 seat belt sensor, 2 pressure sensor, 3 fingerprint scanner, 4 camera, 5 passenger information DB, 6 security information DB, 10 navigation device, 11 input section, 12 destination route search section, 13 passenger identification section, 14 boarding Person information acquisition unit, 15 vehicle information storage unit, 16 vehicle information acquisition unit, 17 security information acquisition unit, 18 communication unit, 19 risk calculation unit, 20 display unit, 101 processor, 102 memory, 103 touch panel, 104 display, 105 communication apparatus.

Claims (13)

An occupant information acquisition unit that acquires occupant information regarding an occupant in the vehicle;
A destination route search unit for searching for a destination candidate or a route candidate to the destination;
A security that refers to a security information database that stores security information for each position, and obtains security information corresponding to the destination candidate or the route candidate to the destination searched by the destination route search unit. An information acquisition unit;
Using the passenger information acquired by the passenger information acquiring unit and the security information acquired by the security information acquiring unit, the destination candidate or the route to the destination according to the passenger. A risk calculator for calculating the risk of the candidate,
A display unit for displaying the risk calculated by the risk calculation unit.   The display unit displays, on a map, the candidate for the destination or a candidate for a route to the destination, and the area to be subject to the risk calculated by the risk calculating unit. Item 4. The navigation device according to item 1.   The navigation device according to claim 1, wherein the display unit displays the risk content of the destination candidate or the route candidate to the destination in characters.   The navigation device according to claim 1, wherein the risk calculation unit calculates the risk based on a gender of the passenger included in the passenger information.   The navigation device according to claim 1, wherein the risk calculation unit calculates the risk based on an age of the passenger included in the passenger information.   The navigation device according to claim 1, wherein the risk calculation unit calculates the risk based on the physique of the occupant included in the occupant information.   The navigation device according to claim 1, wherein the risk calculation unit calculates the risk based on the number of the passengers in the vehicle.   The navigation device according to claim 1, wherein the risk calculation unit calculates the risk based on a traveling history of the passenger included in the passenger information.   The navigation device according to claim 1, wherein the risk calculation unit calculates the risk based on the occupant's occupation or security capability included in the occupant information. A vehicle information acquisition unit that acquires vehicle information about the vehicle,
The navigation device according to claim 1, wherein the risk calculation unit calculates the risk using the vehicle information acquired by the vehicle information acquisition unit in addition to the passenger information and the security information. .   The navigation device according to claim 10, wherein the risk calculation unit calculates the risk based on a vehicle price of the vehicle included in the vehicle information.   The navigation device according to claim 10, wherein the risk calculation unit calculates the risk based on a security capability of the vehicle included in the vehicle information. A passenger information obtaining procedure for obtaining passenger information regarding the passenger in the vehicle,
A destination route search procedure for searching for a destination candidate or a route candidate to the destination;
A security that refers to a security information database that stores security information for each position, and obtains security information corresponding to the destination candidate or the route candidate to the destination searched by the destination route search procedure. Information acquisition procedure,
Using the passenger information obtained by the passenger information obtaining procedure and the security information obtained by the security information obtaining procedure, the destination candidate or the route to the destination according to the passenger. A risk calculation procedure for calculating the risk of the candidate,
A navigation program for causing a computer to execute a display procedure for displaying the risk calculated by the risk calculation procedure.

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