JP2010223879A - On-vehicle electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To issue a warning about an incident frequent occurrence area according to each vehicle user's condition. <P>SOLUTION: This on-vehicle electronic equipment is provided with: an inputting means for specifying a destination; an incident frequent occurrence area storing means for storing incident frequent occurrence area data; a reporting means; and a controlling means. Incident occurrence rate of a plurality of time zones is stored for each area in the incident frequent occurrence area storing means. The controlling means calculates a prediction time at which a vehicle arrives at the specified destination, detects that the incident occurrence rate in the area where the destination is located is a preset predetermined value or more in a time zone after a predetermined time from the calculated prediction time, and makes the reporting means issue a warning for calling attention when the destination is a facility where long-time stay is predicted. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle-mounted electronic device, and in particular, based on pre-stored case-occurrence area data or case-occurrence area data set by a user, the current position of the vehicle, a destination to be set, etc. The present invention relates to an in-vehicle electronic device that issues a warning to alert the user when the stop position or destination of the vehicle is in the frequent incident area.

  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 when the vehicle is stopped rather than being driven by the vehicle. However, since cited reference 2 is not provided with a means for determining whether the vehicle is stopped, There was a problem that warnings could not be issued.

  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, assuming an actual use situation, there are some problems to be solved.

  For one thing, even in the same facility, the probability and risk of incidents may vary depending on the time zone, so it is desirable to decide whether or not to issue a warning depending on the time zone. In addition, even if the probability and risk of incident occurrence are low at the time of arrival at the destination, the occurrence rate and risk will be reduced after a predetermined time (for example, while shopping in the store) after arrival. In some cases, it is desirable to determine whether or not to issue a warning in such a case. Furthermore, it is desirable to determine whether or not to issue a warning in consideration of whether the facility that is the designated destination is a facility that may stay for a long time.

  This application aims at providing the vehicle-mounted electronic device with a high practical effect corresponding to these subjects.

  In order to solve the above-mentioned problems, the present invention provides an in-vehicle device that includes input means for designating a destination, incident frequent occurrence area storage means storing frequent incident area data, notification means, and control means. In the electronic device, the event occurrence area storage means stores an incident occurrence rate of a plurality of time zones for each area, and the control means calculates an estimated time to reach the designated destination, In a time zone after a predetermined time from the calculated predicted time, it is detected that the incident occurrence rate of the area where the destination is located is equal to or higher than a predetermined value, and the destination stays for a long time. If it is a predicted facility, the warning means for notifying the notification means is notified.

  An in-vehicle electronic device comprising: input means for specifying a destination; incident frequent occurrence area storage means storing frequent incident area data; notification means; and control means; The incident rate of a plurality of time zones is stored for each facility in each area, and the control means calculates a predicted time to reach the designated destination, and calculates a predetermined time from the calculated predicted time. Specified if it is detected that the incident occurrence rate of the destination is greater than or equal to a predetermined value in a later time zone, and the destination is expected to stay for a long time A facility of the same kind whose incident rate in the time zone is lower than a predetermined value around the destination is searched for as an alternative destination.

  The control means guides the alternative destination by the informing means when the appropriate alternative destination is found, and pays attention to the informing means when the appropriate alternative destination is not found. It is characterized in that a warning for prompting is issued.

  Further, the predetermined value set in advance can be changed to any value via the input means.

  In the present invention, the control means calculates a predicted time to reach the designated destination, and an incident occurrence rate of the area where the destination is located in a time zone after a predetermined time from the calculated predicted time. If it is detected that it is equal to or greater than a predetermined value set in advance and the destination is a facility that is expected to stay for a long time, it is configured to notify the warning means to alert the notification means. Thus, not only the current incident rate but also the incident rate after a predetermined time and the characteristics of the designated facility can be notified.

  Further, the control means calculates a predicted time to reach the designated destination, and an incident occurrence rate at the destination is equal to or greater than a predetermined value in a time zone after a predetermined time from the calculated predicted time. If the destination is a facility that is predicted to stay for a long time, the same type of facility where the incident rate in the time zone is lower than a predetermined value around the specified destination Is searched as an alternative destination, so if a safer similar facility exists near the destination, it can be guided to that destination.

  In addition, when the appropriate alternative destination is found, the control means guides the alternative destination by the notification means. When the appropriate alternative destination is not found, the control means pays attention to the notification means. Since a warning to prompt is notified, if an alternative destination is found, the alternative destination can be set as a guide or a destination. If the alternative destination is not found, a warning that the designated destination is a frequently stolen facility is notified. be able to.

  In addition, by making it possible to change the predetermined value set in advance to an arbitrary value via the input means, it is possible to easily change the warning notification range according to the user's preference and occasional circumstances, For example, when an excessive warning is notified and it is annoying, the notification frequency can be lowered by changing the predetermined value to a higher value.

  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 the vehicle-mounted navigation device according to the first embodiment.

  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 means 14 further stores background data including facility data including water system data such as coastline, lake and river shape, administrative boundary data, facility position, shape, and name.

  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 the server of the nearest police headquarters, for example, and can acquire the latest incident frequent occurrence area information, and is used for updating the incident frequent occurrence area storage means 15. In addition, the incident frequent occurrence area information 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 incident frequent occurrence area data will be described by taking theft frequent occurrence 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.

  In addition, each mesh data in the present embodiment can be identified using alphabets and numerals, and the frequent theft areas in FIG. 2 are mesh data (D4), (D5), (E4), (E5).

  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), (E5), and (0) is set for mesh data that is not a stolen frequently area. Has been. By performing the setting in this way, a warning is given when it is detected that the vehicle has stopped on the road data or the facility data included in the mesh data in which (1) is set as an area where frequent thefts occur. 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. In addition, 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 occurrence rate is relatively high, but in practice it is preferable to set the value of the occurrence rate as described above, for example, When the occurrence rate exceeds a predetermined value, the occurrence rate is assumed to be relatively high (black circle in the figure), and when the occurrence rate falls below a predetermined value, the occurrence rate is assumed to be relatively low (white circle in the figure).

  In addition, there are various types of incidents related to cars, and it is preferable to issue appropriate warnings 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 present invention will be described using the flowchart of FIG.

  In this flowchart, an example in which theft frequent occurrence area data of a vehicle or a vehicle-mounted navigation device is used will be described.

  Furthermore, in this flowchart, the description is based on an example in which the theft occurrence rate for each facility in each area is stored, not the example in which the theft occurrence rate for each area is stored.

  When the route search function of the in-vehicle navigation device is activated (step S1), and a destination (generally a facility such as a house, a store, or a building) is designated via the input means 12 (step S2), a frequent incident area storage is performed. The theft frequent occurrence area data stored in the means 16 is compared with the destination designated in step S2, and it is determined whether or not the theft occurrence rate of the destination is a predetermined value or more (step S3).

  The predetermined value is set in advance by the manufacturer of the in-vehicle navigation device by providing a storage location in a part of the frequent incident area storage unit 15 or a part of the ROM storing the program. The user may be able to change the input means 12 as appropriate.

  If it is determined in step S3 that the destination theft occurrence rate is equal to or higher than the predetermined value (Y in step S3), a search is made for the same type of facility near the destination where the theft occurrence rate is less than the predetermined value. If there is a corresponding facility (Y in step S5), it is displayed on the display means 13 (step S6). If there are multiple corresponding facilities, display them in a list and let the user select them, or display the facilities closest to the destination specified in step S2 and let the user confirm and set it as the destination I will do it again.

  If the corresponding facility does not exist in the vicinity (N in step S5), it is displayed that the designated destination is a facility with a high theft occurrence rate. For example, “This facility is a frequently stolen facility. Please specify "or" This facility is a theft-prone facility. If you leave the car, please remove the in-vehicle navigation device "on the display means 13 or voice alert means 17 (Step S7).

  In this embodiment, the warning about theft of the vehicle and the warning about theft of the in-vehicle navigation device are described. However, when the warning about theft of the vehicle is given, the data used naturally is also the data about the area where the vehicle is frequently stolen. Thus, when a warning regarding theft of the in-vehicle navigation device is given, the data is related to the theft of the in-vehicle navigation device.

  In the first embodiment, the theft occurrence rate of the destination is constant regardless of the time zone, but the occurrence rate may be different between daytime and nighttime, for example. In the second embodiment, an example in which the occurrence rate data for each time zone as shown in FIG. 4B is stored in the incident frequent occurrence area storage means 15 will be described with reference to the flowchart of FIG.

  In FIG. 6, steps 11-12 are the same as steps 1-2 in FIG. The current time is acquired, and the arrival time is estimated by adding the required time of the route searched by the route search function (step 13). Based on the data of FIG. 4B, the arrival time (or several hours thereafter) If the theft occurrence rate of the designated destination facility in the time zone is greater than or equal to a predetermined value (Y in Step 14), a list of neighboring facilities that are the same type of facility as the originally designated destination and have a low theft occurrence rate , And let the user select the desired facility from among them, or display the facility closest to the facility originally designated among those facilities as an alternative destination and let the user confirm, A new destination is set again (step 15).

  For example, when the destination is a relatively large facility such as a large shopping center or amusement park, there are a plurality of parking lots, and the theft occurrence rate may differ depending on the time zone as shown in FIG. . In this case, if the originally designated destination is an outdoor parking lot, and the estimated arrival time of the destination exceeds 19:30, for example, theft may occur after 20:00 Or display the indoor parking lot and the multistory parking lot as alternative destinations and let the user choose one or the indoor parking lot or the multistory parking lot at the initially specified outdoor parking lot The nearest parking lot is displayed as an alternative destination, and the user is allowed to confirm the change, and the destination is reset and the route search is proceeded.

  Further, when the estimated arrival time of the destination exceeds, for example, 19:30, it is possible to determine whether or not to issue a warning according to the type of the facility that is the destination. In other words, if the destination facility is a facility that does not stay for a long time, such as a convenience store, a warning is not given, and if the facility is expected to stay for a long time, such as a shopping center, a warning may be issued. it can. Information regarding whether or not the facility stays for a long time is stored in advance in the map storage means 14 or the frequent incident area storage means 15.

  If the theft occurrence rate of the designated destination is less than a predetermined value (N in Step 14), the destination is set and the route search is performed.

  There are various types of incidents involving cars, and different warning modes can be considered. For example, in the case of theft, there may be cases where the vehicle itself is stolen, or in-vehicle navigation devices, etc. in the vehicle or stolen luggage (so-called vandalism). Is preferred.

  For vehicle theft, for example, a warning such as “Vehicle theft has occurred frequently. Please be careful.” And for car vandalism, for example, “Theft in the vehicle has occurred frequently. Do not place it in the car. "

  FIG. 7 is a flowchart of this embodiment, and steps 21 to 23 are the same as steps 1 to 3 in FIG. If the theft occurrence rate of the designated destination facility or the area where the destination facility is located is greater than or equal to a predetermined value (Y in step 23), the theft according to the theft type of the area where the destination facility or the destination facility is located A warning number is specified (step 24), and a warning text corresponding to the number is taken out from the database shown in FIG. 4C and displayed on the display means 13, or the voice notification means 17 gives a voice warning (step 25). .

  In addition, if it is a mischief such as damage to a tire or paint, a warning such as “There are frequent mischief on tires or paint. In addition, warnings such as “You may be flooded during heavy rains. Be careful.” Should be given at locations that are prone to flooding during heavy rains or typhoons. Similarly, for example, it can be applied to various disasters such as a point where there is a high possibility of hitting a fallen object in a strong wind and a point where damage due to a landslide is assumed in the event of an earthquake.

  FIG. 8 is a modification of the embodiment of FIG. 7. Steps 31 to 34, 310, and 311 are the same as steps 21 to 24, 26, and 27 of FIG. 7, and the theft type is theft of the vehicle itself. (Y in step 35), search for facilities of the same type near the specified destination with a theft occurrence rate less than a predetermined value, display a list of searched nearby facilities, and allow the user to select Or, in the searched neighboring facility, the closest facility from the original facility (the facility specified in S32) is presented to the user for confirmation, the destination is set again (step 36), and the route search to the new destination is performed. Execute.

  On the other hand, if the theft type is vandalism (N in Step 35), the system waits until it reaches the destination (Step 37), and gives a predetermined warning to the user when it arrives (Step 38). .

  As described above in detail, the in-vehicle electronic device of the present invention determines whether or not to issue a warning by comparing the incident occurrence rate with a predetermined value, so that the notification range can be changed by changing the predetermined value. It becomes possible to change the frequency.

  As described at the beginning of “Best Mode for Carrying Out the Invention”, the present invention is not limited to the vehicle-mounted navigation device described in the embodiment. It is also possible to apply to other electronic devices having a means for inputting a warning and a function for issuing a warning.

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 10 in the navigation apparatus of 1st Example of this invention. It is a flowchart which shows the control action of the control means 10 in the navigation apparatus of 2nd Example of this invention. It is a flowchart which shows the control action of the control means 10 in the navigation apparatus of 3rd Example of this invention. It is a flowchart which shows the control action of the control means 10 in the navigation apparatus of 4th Example of this invention.

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 comprising input means for specifying a destination, incident frequent occurrence area storage means storing frequent incident area data, notification means, and control means,
The incident frequent occurrence area storage means stores an incident occurrence rate in a plurality of time zones for each area, and the control means calculates a predicted time to reach the designated destination, and the calculated predicted time In a time zone after a predetermined time, it is detected that the incident rate of the area where the destination is located is equal to or higher than a predetermined value, and the destination is predicted to stay for a long time If so, an in-vehicle electronic device is characterized in that a warning for caution is given to the notification means. In an in-vehicle electronic device comprising input means for specifying a destination, incident frequent occurrence area storage means storing frequent incident area data, notification means, and control means,
The incident occurrence area storage means stores incident rates for a plurality of time zones for each facility in each area, and the control means calculates a predicted time to reach the designated destination, and calculates In a facility where it is detected that the incident occurrence rate of the destination is greater than or equal to a predetermined value in a time zone after a predetermined time from the predicted time and the destination is predicted to stay for a long time If there is, an in-vehicle electronic device that searches for a facility of the same kind whose incident rate in the time zone is lower than a predetermined value around the designated destination as an alternative destination.   When the appropriate alternative destination is found, the control means guides the alternative destination by the notification means, and when the appropriate alternative destination is not found, the control means urges the notification means to pay attention. The vehicle-mounted electronic device according to claim 2, wherein a warning is notified.   The in-vehicle electronic device according to any one of claims 1 to 3, wherein the predetermined value set in advance can be changed to an arbitrary value via the input means.

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