JP2010175451A - In-vehicle electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To send an alert in order to draw user's attention when a stopping position and a destination of a vehicle are in a high-frequency incident area, to determine whether or not the destination is a facility which can be substituted, and carry out a guidance of a substitute facility if possible. <P>SOLUTION: In-vehicle electronic equipment is provided which includes: an input means 12 for designating the destination; a high-frequency incident area memory means 15 for storing high-frequency incident area data; and a control means 10. The high-frequency incident area memory means 15 stores incident event rates of respective areas or respective facilities in each area. The control means 10 determines whether or not the designated destination is the facility which can be substituted, and searches a similar facility as a substitute destination which is located around the designated destination and has the incident event rate lower than a prescribed value which is set previously when the designated destination can be substituted, and the incident event rate of the designated destination is equal to or higher than the prescribed value. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an in-vehicle electronic device, and in particular, based on pre-stored case-occurrence area data or case-occurrence area data set by a user, a current position of the vehicle, a destination to be set, and the like. When the stop position or destination of the vehicle is in the frequent incident area, a warning is given to the user, and whether the destination is a substitutable facility is determined. The present invention relates to an in-vehicle electronic device.

  In this application, “incident” refers to theft of the vehicle itself, theft of in-vehicle equipment and loaded cargo from the vehicle (so-called vandalism), damage to tires and paint, etc. It means all kinds of inconvenient situations that occur in relation to natural disasters and other vehicles.

  Recently, various electronic devices such as a navigation device, a music player, a DVD player, a television receiver compatible with analog broadcasting and digital broadcasting have been miniaturized and are provided as portable devices or as in-vehicle devices.

  Some of these in-vehicle electronic devices are used by being attached to a dashboard of a vehicle, such as a navigation device.

  Recently, an in-vehicle / portable electronic device that includes an internal power source, an AC power source connection unit, etc., is removed from the vehicle and carried outside and can be used at home or at home is also provided. Such an in-vehicle electronic device is likely to be stolen because it is relatively easy to remove from the dashboard.

  Various proposals have been made as countermeasures for the case where these in-vehicle electronic devices are stolen.

  For example, the following Patent Document 1 (Japanese Patent Laid-Open No. 2004-355241) discloses an invention of a vehicle communication ECU and a theft monitoring method thereof.

  The technology disclosed in Patent Document 1 relates to an apparatus in which a vehicle-mounted device communicates with the outside through a radio, and includes a sensor that detects a mounting state of the vehicle-mounted device on a vehicle. Is used to monitor abnormal removal such as theft. The detection output from the sensor informs the management center that it has been stolen through the wireless device. At the same time, the radio is locked to be unusable.

  Patent Document 2 (Japanese Patent No. 3565125) discloses an accident frequent section alarm generating device that warns when there is a frequent accident section within a predetermined range in the traveling direction of the host vehicle.

  The technique disclosed in Patent Document 2 is a road section where accidents have occurred frequently in the past, and the intermediate points such as intersections in both ends of the section and in the section are represented by latitude and longitude, and is organized for each accident-prone section. It is stored in advance as accident-prone section information, and it is determined whether or not at least two points of both ends and intermediate points of the accident-prone section are included in a predetermined range in the traveling direction of the own vehicle. When it is determined that the vehicle has been accidentally closed, a warning is given to inform the user of approaching to the accident-prone section.

JP 2004-355241 A (paragraph [0018] to paragraph [0020], paragraph [0029] to paragraph [0037]) Japanese Patent No. 3565125 (paragraph [0012], paragraph [0014], paragraph [0016] to paragraph [0025])

  However, in the in-vehicle electronic device disclosed in Patent Document 1, a sensor for detecting the mounting state of the in-vehicle electronic device on the vehicle is provided, the sensor detects abnormal removal at the time of theft, and the detection output is In order to notify the external management center by communication through a wireless device, in order to detect theft of the in-vehicle electronic device, it is necessary to provide a sensor separately from the in-vehicle electronic device body, which increases the cost. Since communication with the management center must be performed, for example, when a communication failure occurs, there is a problem that a theft cannot be found.

  In the accident frequent section alarm generating device disclosed in Patent Document 2, it is determined whether or not at least two points of both ends and intermediate points of the accident frequent section are included in a predetermined range in the traveling direction of the host vehicle. When it is determined that it is determined that at least two points are included, a warning notifying the approach to the accident frequent occurrence section is issued. However, with respect to theft, even if there is a frequent theft section in a predetermined range in the traveling direction of the vehicle during driving, there is no special problem in traveling in that section. The most important thing in theft is when the vehicle is stopped and the driver leaves the vehicle. In other words, regarding theft, a warning is required at the time of stopping the vehicle, not at the time of traveling by the vehicle, or at the time of specifying the destination to be stopped. Since there is no means for determining the destination, there is a problem that warnings cannot be issued in areas where frequent thefts occur.

  As a result of various investigations to solve the above problems, the inventors of the present application have made it possible to detect the current position of the vehicle in the in-vehicle electronic device, the data on the theft occurrence area, the current position of the vehicle By providing an area discriminating function, a vehicle state detecting function for detecting the stopping of the vehicle, and a warning function, it is possible to confirm that the vehicle has stopped in the theft-prone area without requiring special communication with the outside. An in-vehicle electronic device capable of issuing a warning prompting for theft when detected is filed as Japanese Patent Application No. 2007-283500.

  However, rather than being warned that it is dangerous after arriving at the destination, if it is a device with a navigation function, it is preferable to issue a warning at the time of setting the destination, or even just a warning. In addition, it is preferable to provide information on safer alternative facilities, if any.

  The present invention is intended to provide a vehicle-mounted electronic device having a high practical effect in response to such a problem.

In order to solve the above problem, the invention according to claim 1 of the present application is
In an in-vehicle electronic device provided with input means for specifying a destination, incident frequent occurrence area storage means storing frequent incident area data, and control means,
The incident frequent occurrence area storage means stores an incident occurrence rate for each area or for each facility in the area, and the control means determines whether the designated destination is a substituteable facility. If the destination is replaceable and the incident rate at the destination is greater than or equal to a predetermined value, a facility of the same type whose incident rate is lower than the predetermined value around the specified destination is selected. It is characterized by searching as an alternative destination.

The invention according to claim 2 of the present application is
2. The in-vehicle electronic device according to claim 1, wherein said incident frequent occurrence area storage means stores incident occurrence rate data in units of administrative districts or areas equivalent thereto and incident occurrence rate data in units of individual facilities. And the control means performs processing according to the incident rate data of the area including the destination facility when there is no individual incident rate data for the facility of the designated destination. To do.

The invention according to claim 3 of the present application is
3. The in-vehicle electronic device according to claim 1, wherein the control unit determines whether or not the designated destination can be replaced according to the type of each facility stored in the map storage unit. It is characterized by doing.

Furthermore, the invention according to claim 4 of the present application is
The in-vehicle electronic device according to any one of claims 1 to 3, wherein when the control unit searches for alternative destination candidates, the control unit further includes a distance between the alternative facility and the originally designated destination. Calculate the required time and compare it with a predetermined value set in advance. If the distance between the originally designated destination and the candidate alternative destination and / or the required time is less than the predetermined value, A guide for changing the destination to an alternative destination is notified.

  In the invention according to claim 1, when the incident occurrence rate of the designated destination is equal to or higher than a predetermined value set in advance, it is possible to determine whether or not the facility at the destination can be replaced. In such a case, it is possible to change the destination to a safer facility by searching for an alternative facility in the vicinity of the predetermined range.

  In the invention according to claim 2, when there is no individual incident rate data for the facility at the designated destination, the processing is performed according to the incident rate data of the area including the destination facility. It becomes possible to change the destination to a safe similar facility.

  In the invention according to claim 3, it is possible to change the destination to a safer facility of the same type by determining whether or not the facility can be replaced with another similar facility according to the type of facility. .

  In the invention according to claim 4, when searching for alternative destination candidates, the distance and / or time required between the alternative facility and the initially designated destination is further calculated and set in advance. By comparing with a predetermined value, it is possible to guide an alternative facility close to the originally designated destination.

It is a block diagram which shows the principal part of the navigation apparatus of this invention. It is the figure which showed theft frequent occurrence area on the map. It is the figure which showed theft frequent occurrence area data. It is a figure which shows an example of the data memorize | stored in the incident frequent occurrence area memory | storage means, and the data of warning text, FIG.4 (a) is an example which memorize | stored the data of theft frequent occurrence area in the administrative unit, FIG.4 (b) is FIG. FIG. 4C is a diagram illustrating an example of an appropriate warning sentence according to the type of incident, in which data indicating the theft of the theft occurrence rate in the facility is stored. It is a flowchart which shows the control action of the control means in the navigation apparatus of one Example of this invention. It is a figure which shows the example which memorize | stored the flag information which shows the place of a facility, the theft occurrence rate, and substitution possibility for every facility.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. However, the embodiment shown below exemplifies a vehicle-mounted navigation device for embodying the technical idea of the present invention, and is not intended to specify the present invention as this vehicle-mounted navigation device. Other embodiments included in the scope of claims such as other in-vehicle electronic devices that do not have a navigation function in the in-vehicle navigation device exemplified in the present embodiment are equally applicable.

  FIG. 1 is a block diagram illustrating a configuration of a main part of an in-vehicle navigation device according to an embodiment of the present invention.

  The control means 10 comprises a processor comprising a CPU (not shown) and a RAM / ROM (not shown), and controls the operation of each part of the in-vehicle navigation device in accordance with a control program recorded in the RAM and ROM. It is.

  The current position detection means 11 includes a GPS receiver that receives radio waves including time information from a plurality of GPS satellites orbiting the earth.

  Further, the current position detection means 11 can use a self-contained navigation unit including a distance sensor, an azimuth sensor, a snake angle sensor, and the like.

  The input means 12 is composed of various keys, switches, and the like for performing operation input in the vehicle-mounted navigation device, input of a departure place, and destination.

  The display means 13 is for displaying a map image or a guide route image so that the user can visually recognize it, and is configured by a liquid crystal display or the like.

  The display unit 13 may include a touch sensor and function as an input unit. In this case, selection input is performed by the user touching an icon displayed on the screen.

  The map storage means 14 is a road node having a plurality of rectangular mesh data divided by predetermined longitude and latitude, and nodes such as road intersections and branch points as nodes and links connecting the respective nodes as links. Data and road data including road link data are stored. The road node data includes road node numbers, position coordinates, the number of connection links, intersection names, etc., and also stores guidance data corresponding to guidance points such as intersections and guidance data for guiding right turn, left turn, straight ahead, etc. ing.

  The road link data includes a road node number as a starting point and an end point, road type, link length (link cost), required time, number of lanes, road width, and the like. Further, data such as bridges, tunnels, railroad crossings, tollgates, etc. are given as link attributes to the road link data. The road type is information including a distinction between an expressway and a toll road, and distinction such as a national road or a prefectural road.

  The map storage unit 14 further stores background data including facility data including water system data such as coastlines, lakes, and river shapes, administrative boundary data, positions, shapes, and names of various facilities.

  Incident frequent occurrence area storage means 15 is an area where theft of the vehicle or the vehicle-mounted navigation device has been frequently generated, an area where tires or body paintings are frequently mischievous, or an area that is prone to flooding in the event of a typhoon or heavy rain, etc. In addition, frequent area data of various incidents involving risks associated with parking and stopping a vehicle at that location is stored.

  The communication means 16 can be connected to, for example, the nearest police headquarters server to acquire the latest incident frequent occurrence area data, and is used to update the incident frequent occurrence area storage means 15. Further, the incident frequent occurrence area data can be input by the user himself / herself through the input means 12.

  The voice notification means 17 performs various voice notifications in the in-vehicle navigation device, such as guidance notification in route guidance, and includes a speaker or the like.

  Next, the frequent incident area data stored in the frequent incident area storage means 15 will be described by taking frequent theft area data as an example.

  FIG. 2 is a diagram showing a theft frequent occurrence area on the map data stored in the map storage means 14.

  In FIG. 2, (a) is a guide route, (b) is the current position of the vehicle, and (c) is a frequently theft area.

  Further, as shown in FIG. 2, the map data stored in the map storage means 14 is composed of a plurality of rectangular mesh data obtained by dividing the entire map by a predetermined longitude and latitude. Each mesh data includes road node data, road link data, and the like.

  Further, each mesh data in the present embodiment can be identified using alphabets and numerals, and the frequent theft area in FIG. 2 is mesh data (D4, D5, E4, E5) surrounded by a thick line.

  Next, the frequent theft area data stored in the frequent incident area storage means 15 will be described with reference to FIG.

  In the frequent theft area data, whether or not the area on each mesh data stored in the map storage means 14 is a frequent theft area is preset and stored in the frequent incident area storage means 15. As shown in FIG. 3, it is set whether or not all mesh data stored in the map storage means 14 are frequently stolen areas. As described above, each mesh data is set using alphabets and numbers. Has been identified.

  In FIG. 3, (1) is set for mesh data that is a frequently stolen area (D4, D5, E4, and E5), and (0) is set for mesh data that is not a stolen frequently area. By performing the setting in this way, a warning is issued when it is detected that the vehicle is parked or stopped on the road data or the facility data included in the mesh data in which (1) is set as an area where frequent theft occurs. become.

  In the above embodiment, it has been described that the data of the theft-prone area is set for each mesh data as to whether it is the theft-prone area or not. It is also possible to set in administrative units.

  Furthermore, it can be set in units of facilities such as hotels, restaurants, various amusement facilities, department stores, etc., or in buildings in the city. A large-scale facility may have a plurality of parking lots, and in that case, the parking lot unit in the facility may be used.

  FIG. 4 is a diagram illustrating an example of data stored in the frequent incident area storage unit 15 and warning text data.

  FIG. 4 (a) shows a diagram in which data of a frequently stolen area is stored in administrative units, taking Tottori Prefecture as an example. This data is subdivided into prefectures, cities, towns, and addresses, and whether or not the area is a frequent theft is set for each address. In the figure, (1) is set as the theft-prone area in No. 1 and No. 2 in AAA Town, Tottori City. In addition to this, (1) is set as an area where theft frequently occurs in Kurayoshi City BBA Town Nos. 1, 2, 3, and BBB Town No. 1. For other areas, (0) is set because it is not a frequent theft area.

  In this embodiment, it is set whether or not it is a frequent theft area for each address, but this is not restrictive, and the frequent theft area may be set for each city or town. Good.

  Furthermore, in the above example, (0) or (1) is set in the mesh data, but the theft occurrence rate (for example, the occurrence frequency based on the average number of occurrences for one week, one month or one year, Alternatively, a numerical value indicating the magnitude of the incident occurrence risk, such as a relative occurrence rate normalized with the national average of such frequency, is set here, and the set occurrence rate is preset. When it exceeds the predetermined value, it is assumed that the area is frequently stolen, and when it is below the predetermined value, the area is not frequently stolen. It should be noted that the predetermined value is set in advance by the manufacturer of the in-vehicle navigation device in advance by setting a storage location in a part of the frequent incident area storage means 15 or a part of the ROM storing the program. A person may change the input means 12 as appropriate.

  Furthermore, the occurrence rate for each month or season of the year, or the occurrence rate for each time zone of the day, or both are set, and the season when the vehicle-mounted navigation device is used, You may make it use the setting value according to a time slot | zone.

  FIG. 4B is an example thereof, and is data indicating the level of theft occurrence by time zones for three types of parking lots having different structures. In the figure, white circles indicate that the theft occurrence rate is relatively low, and black circles indicate that the rate is relatively high. In practice, it is preferable to set the occurrence rate value as described above.

  In addition, there are various types of incidents related to cars, and it is preferable to issue an appropriate warning according to each type. FIG. 4C shows an example of warning text data, and a plurality of types of warning texts are associated with warning text numbers A, B, C. In this case, in each storage position in FIG. 4B, a warning sentence number corresponding to the theft type may be stored together with the value of the theft occurrence rate.

  Next, the control operation of the control means 10 in the vehicle-mounted navigation device of the embodiment of the present invention will be described using the flowchart of FIG.

  When the route search function of the in-vehicle navigation device is activated and a destination is designated via the input means 12 (step S1), first, whether the designated destination is some kind of facility or other than a facility (individual housing, Whether it is a forest, a vacant land, an agricultural land, or the like) (step S2).

  There are several methods for specifying the destination in the vehicle-mounted navigation device.

  A facility name can be entered as a character or sequentially selected from a hierarchical category menu to designate a specific facility as a destination. In this case, the designated destination is naturally a facility.

  Further, when an address is specified by input, for example, it is possible to determine whether the address is a facility or not based on the ground information for each address stored in the map storage unit 14.

  Further, when the destination is designated from the telephone number, the inputted telephone number is once converted into an address and discriminated based on the location information of the address as described above.

  In addition, when a desired point on the displayed map screen is touched and input as a destination, the coordinates of the touch sensor are converted into coordinates on the displayed map, and the address and address are specified from the map coordinates. In the same manner as described above, the determination may be made based on the ground information of the address.

  If the destination specified in step S1 is any facility (Y in step S2), it is determined whether or not the destination facility is a replaceable facility (step S3). As a method for determining whether or not the facility designated as the destination is an alternative facility, the facility data is stored in a part of the map storage means 14 in the case of specifying the destination with the above facility name. Therefore, it is only necessary to add an alternative “possible” “impossible” identification flag of each facility as a part of the facility data.

  In addition, in the case of the above address designation, telephone number designation, or designation on the map screen, the map storage means 14 stores the location information for each address and, if the address is a facility, the facility's name. Although attribute information such as type is also stored, in the case of the present invention, an identification flag indicating whether or not the facility is a substitutable facility can be stored. Details of how to hold the identification flag and search for alternative facilities will be described later.

  If the facility designated as the destination is a replaceable facility (Y in step S3), based on the data stored in the frequent incident area storage unit 15 illustrated in FIG. 4, the facility or the facility peripheral area It is discriminate | determined whether it is an incident frequent occurrence area (step S4).

  If the facility at the destination is a frequent incident facility or a facility located in a frequent incident area (Y in step S4), the facility is of the same type as the relevant facility and not a frequent incident facility, or the same type of facility. Search for facilities that are present and not located in the frequent incident area (hereinafter referred to as alternative facilities) (step S5), and if there are a plurality of alternative facility candidates, the alternative facility closest to the original destination Determine as a candidate. Details of the search method will be described later.

  Next, the distance and / or required time from the alternative facility candidate to the initial destination facility is calculated (step S6), and it is determined whether or not it is equal to or less than a predetermined value stored in advance (step S7). If the distance and / or the required time is less than or equal to a predetermined value (Y in step S7), a process of changing the setting of the alternative facility candidate as a new destination is performed (step S8).

  In this case, the user is notified that the alternative facility candidate is changed to a new destination (voice notification from the voice notification means 17 and / or display from the display means 13) to the user.

  On the other hand, if there are alternative facility candidates but the distance and / or the required time is not less than the predetermined value (N in step S7), the presence of the alternative facility candidate is notified and whether or not the destination is changed. It is better to leave it to the user's judgment (step S9).

  Here, how to hold the identification flag and search for alternative facilities will be described in detail.

  Types of facilities include, for example, restaurants, lodging facilities, gas stations, department stores, supermarkets, convenience stores, movie theaters, museums, theaters, parks, amusement parks, various schools, various government buildings, police stations, fire stations, insurance stations, etc. There are various types of government offices, etc., and depending on the type, there are cases where it is almost determined whether or not a substitute is possible.

  For example, a convenience store can receive substantially the same assortment and service if it is a store of the same series, and there are many cases where there are a plurality of stores of the same series relatively close to each other. In addition, it is difficult to use points and coupons at stores of other affiliates, but there are not so many differences in the products handled, and there are many cases where they can be generally replaced.

  In the case of restaurants, it is further subdivided into Japanese, Chinese, Italian, French, family restaurants, ramen restaurants, etc., but it seems that there are many cases where substitution is possible within this subdivided range. Of course, there is a case where it is meaningless unless it is a specific store (for example, when the store is reserved, when the specific menu of the store is intended, etc.). The user may ignore the facility guidance.

  Furthermore, recently, there are many cases where other affiliated stores have partnered with a point service or various discount services, and it is preferable to search for an alternative store in consideration of such a partnering relationship.

  On the other hand, theaters, movie theaters, concert halls, stadiums, etc. are often visited for specific purposes, movies, artists, battle cards, and tickets have already been purchased. Even if there is, there are many cases where substitution is difficult.

  In addition, facilities with proper names such as intersections, bridges, railway stations, harbors and airports are generally not substitutable, but facilities with large areas may have multiple parking lots. Incidence rates may vary from one to the next. In such a case, when a specific parking lot is designated as the destination, an alternative parking lot may be searched.

  In this way, as an identification flag indicating whether or not the facility is replaceable stored in the map storage means 14, for example, it is possible to substitute for a convenience store, “possible” for a concert hall, etc. It is possible to uniformly decide “permitted” or “impossible” depending on the facility type.

  Further, when searching for an alternative facility in step S5, it is preferable that the user can specify whether the search category range is wide or narrow. For example, if the facility originally designated as the destination is a ramen store, the alternative facility must be a ramen store, can be replaced if it is a Chinese restaurant, or can be anything if it is a restaurant Preferably, the alternative facility search level can be selected. In this case, according to the designation of the search range, it is only necessary to determine in which level of the facility list the search is performed in the search.

  In the above description, the flag information indicating whether or not the facility can be replaced has been described as being added to the facility information included in the map information stored in the map storage unit 14, but is not limited thereto. It is also possible to store the incident in the frequent incident area storage means 15. FIG. 6 is a diagram illustrating an example in which facility information is stored together with theft occurrence rate data. FIG. 6 is a diagram illustrating an example in which each facility A to D is stored, and flag information indicating the location of the facility, the theft occurrence rate, and the availability of substitution is stored for each of these facilities. The theft occurrence rates of the facilities A to D are indicated by black circles and white circles indicating the height as in FIG. The facility location information is stored as latitude and longitude data, and corresponds to the facility location information in the facility data stored in the map storage unit 14. The possibility of substitution is determined according to the criteria as described above, and is stored as facility information as flag information indicating whether substitution is possible or not. Here, when the theft occurrence rate has data for each facility, the data for each facility may be stored, and when there is no data for each facility, the theft occurrence rate of the area where each facility is located may be stored.

  In addition, it seems that there are some users who feel that it is bothersome to present an alternative facility, and there are many users who have no meaning in the alternative facility, so the search function of the alternative facility itself can be disabled. It is good.

DESCRIPTION OF SYMBOLS 10 ... Control means 11 ... Current position detection means 12 ... Input means 13 ... Display means 14 ... Map storage means 15 ... Accident frequent occurrence area storage means 16 ... Communication means 17- ..Voice notification means

Claims (4)

In an in-vehicle electronic device provided with input means for specifying a destination, incident frequent occurrence area storage means storing frequent incident area data, and control means,
The incident frequent occurrence area storage means stores an incident occurrence rate for each area or for each facility in the area, and the control means determines whether the designated destination is a substituteable facility. If the destination is replaceable and the incident rate at the destination is greater than or equal to a predetermined value, a facility of the same type whose incident rate is lower than the predetermined value around the specified destination is selected. An in-vehicle electronic device characterized by searching as an alternative destination.   The incident frequent occurrence area storage means stores incident occurrence rate data in administrative district units or area units equivalent thereto and incident occurrence rate data in individual facility units, and the control means stores the designated 2. The in-vehicle use according to claim 1, wherein when individual incident occurrence rate data for a destination facility is not stored, processing is performed according to the incident occurrence rate data of an area including the destination facility. Electronics.   3. The control unit according to claim 1, wherein the control unit determines whether the designated destination is a substituteable facility according to a type of each facility stored in the map storage unit. Automotive electronic equipment.   When the control means searches for alternative destination candidates, the control means further calculates the distance and / or time required between the alternative facility and the originally designated destination, and is designated as the initially designated destination and candidate. 4. The information for changing the original destination to the alternative destination is notified when the distance to the alternative destination and / or the required time is smaller than a predetermined value set in advance. The on-vehicle electronic device according to any one of the above.

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