JP2011051376A - On-vehicle electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle electronic apparatus detecting occurrence of any theft, and the subsequent remote lock or the like for the longest possible period by suppressing energy consumption of a cell or a battery. <P>SOLUTION: The on-vehicle electronic apparatus includes a present position detection unit 11 for detecting the present position, a theft repetition area storage unit 17 for storing information on a theft repetition area which is specified in advance as an area with repeated thefts, and a control unit 10 which compares the present position acquired by the present position detection unit when a power source is turned OFF with information on theft repetition area stored in the theft repetition area storage unit 17, turns ON the power source at every specified time after turning OFF the power source if the present position when turn OFF the power source belongs to the theft repetition area, acquires the present position from the present position detection unit when turning ON the power source, collates the acquired present position with the present position acquired when turning OFF the power source, and transmits the present position acquired when turning ON the power source to the predetermined device if the result of collation is not matched therewith. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an in-vehicle electronic device having a theft countermeasure function, and in particular, whether or not the current position information is transmitted after the power is turned off and the transmission frequency based on whether or not the place where the power is turned off belongs to the theft frequent occurrence area. The power consumption is reduced while performing appropriate theft monitoring after the power is turned off, resulting in an early battery exhaustion and subsequent in-vehicle electronic device tracking being impossible. The present invention relates to an in-vehicle electronic device that can avoid the occurrence of defects as much as possible.

  Recently, various electronic devices such as navigation devices, music players, DVD players, television receivers compatible with analog broadcasting and digital broadcasting have been miniaturized and provided as in-vehicle electronic devices.

  Some of these in-vehicle electronic devices are firmly attached to the vehicle from the beginning as standard equipment, but there are also those that are attached to the dashboard of the vehicle so that they can be easily attached and detached afterwards. . Such a simple mounting type in-vehicle electronic device is generally provided with a built-in power source (battery), an AC power source connection means, and the like, and can be removed from the vehicle and used outdoors or at home. Various products are sold. And the vehicle-mounted electronic device which is easy to remove from a vehicle in this way is easy to become a subject of theft.

  Among them, navigation devices are often high-performance and expensive, and in particular, portable navigation devices are easy to be removed from the vehicle, and thus are particularly susceptible to theft. With such portable navigation devices at the top, the number of thefts of various in-vehicle electronic devices has been increasing year by year, and it has become a social problem because stolen goods are dealt with plainly in Internet auctions.

  Therefore, recently, by transmitting the current position information to a predetermined server device via a wireless communication network such as a mobile phone network or a PHS phone network, the current location of the terminal can be always grasped. The current position information acquired by a mobile communication terminal with a GPS function (for example, see Patent Document 1 below) or the current position information acquisition means is transmitted to a predetermined external device (such as a server in the management center) at regular intervals. In-vehicle configuration configured to detect the occurrence of artificial detriment such as theft of a vehicle, theft, loss of communication equipment, unauthorized use, etc., from changes in location information, communication interruptions, etc. Electronic devices (see, for example, Patent Document 2 below) have been devised.

JP 2007-74691 A JP 2002-62145 A

  However, in the electronic devices disclosed in Patent Document 1 and Patent Document 2 described above, the built-in power supply is provided and the current position information is transmitted at a constant cycle. Soon, it becomes impossible to transmit the current position information, and this causes a situation in which a false detection such as theft occurs. In particular, since a portable in-vehicle electronic device is an electronic device that consumes a relatively large amount of power relative to the storage capacity of a built-in power supply, a situation in which it becomes impossible to operate due to running out of a battery can occur frequently. This is a phenomenon often seen in mobile phones, and is experienced by many users.

  The present invention has been made paying attention to the above-mentioned problems, and the object of the present invention is to notify the current position information to a predetermined device such as a management center so that the in-vehicle electronic device or the vehicle is stolen. For example, in a vehicle-mounted electronic device such as a navigation device configured to be capable of detection, the consumption of a battery or a battery is suppressed, and the detection of theft or the subsequent remote lock can be performed for as long as possible To provide electronic equipment.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
In-vehicle equipped with a current position detection unit for detecting the current position, and a control unit that turns on the power at regular intervals after the power OFF operation, acquires the current position at the time of power ON from the current position detection unit, and transmits the current position to a predetermined device Electronic equipment,
The in-vehicle electronic device includes a theft-prone area storage unit that stores theft-prone area information specified in advance as an area where theft frequently occurs,
The control unit compares the current position acquired from the current position detection unit at the time of power-off operation with the theft-prone area information stored in the theft-prone area storage unit, and the current position at the time of the power-off operation is the theft If it is determined that it belongs to a frequent occurrence area,
The power is turned on at regular intervals after the power-off operation, the current position is obtained from the current position detection unit when the power is turned on, and the current position obtained during the power-off operation is collated. The present position acquired when the power is turned on is transmitted to the predetermined device.

  The invention according to claim 2 of the present application is characterized in that in the in-vehicle electronic device according to claim 1, when the collation result matches, the power of the in-vehicle electronic device is turned off.

  According to a third aspect of the present invention, in the on-vehicle electronic device according to the first or second aspect, the predetermined device that has received the current position transmits a predetermined instruction code to the on-vehicle electronic device. The control unit invalidates operation and / or input of the in-vehicle electronic device according to the received instruction code.

  According to a fourth aspect of the present invention, in the in-vehicle electronic device according to any one of the first to third aspects, the control unit determines that the current position at the time of the power OFF operation does not belong to the frequent theft area. In this case, the predetermined time for turning on the power is longer than that when it is determined that the current position at the time of turning off the power belongs to the theft frequent occurrence area.

  Further, according to a fifth aspect of the present invention, in the in-vehicle electronic device according to any one of the first to third aspects, the control unit determines that the current position at the time of the power OFF operation does not belong to the frequent theft area. In this case, the power OFF state is maintained until the power ON operation is performed.

  The invention according to claim 6 of the present application is characterized in that in the in-vehicle electronic device according to any one of claims 1 to 5, the theft frequent occurrence area information is updated and acquired as needed.

  According to a seventh aspect of the present invention, in the in-vehicle electronic device according to any one of the first to fifth aspects, the in-vehicle electronic device is a navigation device.

  According to the invention described in claim 1 of the present application, when the control unit determines that the current position at the time of power-off operation belongs to the theft frequent occurrence area, the control unit turns on the power every predetermined time after the power-off operation, When the power is turned on, the current position is acquired from the current position detector and collated with the current position obtained when the power is turned off. When the collation results do not match, the current position obtained when the power is turned on is transmitted to the predetermined device. To do. When these current positions are different, it is considered that the vehicle-mounted electronic device was stolen or the vehicle equipped with the vehicle-mounted electronic device was stolen by a tow truck or the like. Notification is made promptly and early detection of theft occurrence is possible. For this reason, according to the present invention, it is possible to provide an early theft notification comparable to conventional in-vehicle electronic devices in which the power is always turned on and the current position information is frequently transmitted to the center or the like. However, it is possible to suppress power consumption as much as possible. Therefore, the fear that the battery will run out and communication will not be possible is reduced.

  According to the invention described in claim 2 of the present application, when the current position at the time of power-off operation matches the current position at the time of automatic power-on, there is no movement of the in-vehicle electronic device, that is, there is a theft. Since the current position information is not transmitted, the power is turned off to reduce power consumption, and the time measurement for a predetermined time is started again. Therefore, power is not consumed unnecessarily.

  Further, according to the invention described in claim 3 of the present application, in the case where theft occurs, the operation and input of the in-vehicle electronic device are invalidated by the remote lock, and therefore stored in the in-vehicle electronic device. Personal information such as name, address, telephone number, etc. can be prevented from being read or rewritten by a third party, and unauthorized use by third parties of in-vehicle electronic devices can be prevented. .

  Further, according to the invention described in claim 4 of the present application, when the parked location does not belong to the theft-prone area, the amount of worry about theft is less, compared to the case where it belongs to the theft-prone area. It is possible to further suppress power consumption by lengthening the period and relaxing monitoring.

  According to the invention described in claim 5 of the present application, when the parked location does not belong to the theft-prone area, the normal power-off state is maintained, and processing such as current position acquisition and position information transmission by automatic power-on is performed. In this case, power consumption can be significantly suppressed. It should be noted that since the normal power-off state is maintained in this way when it does not belong to a frequent theft area, priority should be given to the suppression of power consumption because the risk of theft is low. It depends on the idea.

  Further, according to the invention described in claim 6 of the present application, it is possible to appropriately acquire the latest information related to the theft-prone area, which contributes to theft detection. Such an occasional update is easily realized, for example, by regularly acquiring theft frequent occurrence area information from a predetermined server managed by a prefectural police or the like arranged on the network via wireless communication. it can.

  Further, according to the invention described in claim 7 of the present application, various means such as the current position detection unit can be immediately realized by using the GPS function that is permanently installed in the car navigation system, so that it can be manufactured at a lower cost. It becomes possible. Furthermore, the in-vehicle electronic device of the present invention can be provided to more car navigation users, or an added value can be generated in the car navigation.

It is a block diagram which shows the principal part structure of the common navigation apparatus of 1st Embodiment and 2nd Embodiment. It is a flowchart which shows the control action concerning theft monitoring of the control part in the navigation apparatus of 1st Embodiment. It is a flowchart which shows the detailed operation content of a remote operation reception process. It is a flowchart which shows the control action concerning the theft monitoring of the control part in the navigation apparatus of 2nd Embodiment.

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

  FIG. 1 is a block diagram showing a configuration of a functional circuit that is a main part of a navigation device common to the first and second embodiments. As shown in FIG. 1, the navigation device 1 according to this embodiment includes a control unit 10, a current position detection unit 11, an input unit 12, a display unit 13, a voice notification unit 14, a map data storage unit 15, and a wireless communication unit 16. The theft frequent occurrence area storage unit 17 and the power supply unit 18 are provided.

  The control unit 10 includes a processor including a CPU (not shown) and a RAM / ROM (not shown), and controls the operation of each part of the navigation device 1 according to a control program recorded in the RAM and ROM. is there. The control unit 10 receives power supply from a power supply unit 18 made of a battery or the like, and supplies the supplied power to each unit constituting the navigation device 1. As a main operation, the control unit 10 refers to the map data stored in the map data storage unit 15 to perform a guide route search process, and from the departure point designated based on the searched guide route to the destination. The guidance guidance process is executed. Further, the control unit 10 includes a function as an area determination unit, and determines whether or not the parking place is a frequent theft area by referring to the frequent theft area information stored in the frequent theft area storage unit 17 described later. Then, the “power OFF operation process” which is a main part of the present invention is executed. Details of this processing will be described later in detail with reference to the flowcharts of FIGS.

  Further, the control unit 10 is provided with a timer unit for measuring a predetermined time (T1 / T2) described in flowcharts 2 and 4 described later.

  The current position detection unit 11 includes a GPS receiver that receives radio waves including time information from a plurality of GPS satellites orbiting the earth. In this example, the current position detection unit 11 includes a distance sensor, a direction sensor, a rudder angle sensor, and the like as a self-contained navigation device.

  The input unit 12 is composed of various switches arranged on the front surface for performing power ON / OFF operation input of the navigation device 1 and departure / destination input.

  The display unit 13 plays a role as a man-machine interface for displaying a map image and a guide route image so that the user can visually recognize the image, and is configured by a monitor such as a liquid crystal display. In the present embodiment, the display unit 13 also serves as a part of the input unit 12 by providing the monitor with a touch sensor. For example, when a user touches an icon displayed on the screen, a facility can be selected or a specific command execution instruction can be input.

  The voice notification unit 14 performs various voice notifications in the navigation device 1 such as an operation guide and voice guidance at the time of guidance guidance, and includes a speaker or the like.

  In the map data storage unit 15, in addition to a plurality of rectangular mesh data divided by predetermined longitude and latitude, node data having nodes such as road junctions and inflection points as nodes, and the respective nodes are connected. Map data including link data with roads as links is stored. More specifically, the position of a road branch point (node, inflection point) is a node, and a road connecting each node is a link.

  The node data includes the node number, node position coordinates, the number of links connected to the node, the name of the intersection when the node is an intersection, etc., as well as the guidance point corresponding to the guidance point such as the intersection, and the right or left turn , Guidance guidance data for guiding straight ahead and the like are included. The link data includes cost information (distance, required travel time) and traffic regulation information (accessible direction, passable time zone, passable vehicle classification) for all links. Further, the link data includes data such as a bridge, a tunnel, a railroad crossing, and a toll gate as a link attribute in addition to the node number, road type, number of lanes, and road width as starting and ending points. Here, the road type is information including the distinction between highways and toll roads, and distinctions such as national roads and prefectural roads.

  The control unit 10 refers to the map data stored in the map data storage unit 15 to sequentially search for nodes and links from the starting point to the destination, and guides the nodes and the routes that follow the links that minimize the total cost of the links. A guidance route search process specified as a route is performed, and the vehicle user is guided to the destination via the guidance route through the display unit 13 and the voice notification unit 14. Note that a known method called a label determination method or a Dijkstra method is employed as a method for such a guidance route search process, and a detailed description thereof will be omitted.

  Furthermore, the map data storage unit 15 stores facility data such as facility position, facility shape, and facility name, water system data such as coastline, lake, and river shape, administrative boundary data, and background data. These pieces of information are appropriately displayed as icons or character information on the monitor.

  The theft-prone area storage unit 17 includes a plurality of stolen-prone areas in which this type of in-vehicle electronic device and the area where the vehicle is frequently stolen has a configuration of a plurality of rectangular mesh data separated by a predetermined longitude and latitude. Stored as information. The theft frequent occurrence area information can take various configurations regardless of such a configuration. For example, frequent theft area information can be configured for each administrative division such as a town and a village, or the frequent theft area information may be configured based on the theft occurrence rate for various facilities.

  The wireless communication unit 16 acquires VICS information such as traffic jam information, and is connected to a predetermined center server C and a prefectural police headquarters server P on the communication network N via an existing base station K such as a mobile phone. . The predetermined center server C is operated by the management organization of the navigation apparatus 1, and the latest map data can be acquired from the center server C at any time, and the data content of the map data storage unit 15 is updated. Also used. Moreover, the latest theft frequent occurrence area information can be acquired from the police headquarters server P at any time, and it is used to update the data content of the frequent theft area storage unit 17. The theft frequent occurrence area information can be input by the user himself / herself via the input unit 12. Therefore, for example, by intentionally setting the home to be a frequent theft area, it is possible to always monitor theft when parked at home.

  Next, a control operation related to theft monitoring of the control unit 10 in the navigation device 1 of the present invention will be described using the flowchart of FIG. The control operation related to theft monitoring of the navigation device 1 of the present invention, that is, the main operation of the present invention is started when the power is turned off by the user via the input unit 12. That is, until the power-off operation is performed (step S1, Yes), normal processing (for example, guidance route search processing) is performed, and the theft monitoring operation is not performed (step S1, No). ).

  When the vehicle is parked or the like and the user turns off the power of the navigation device 1 (step S1, Yes), the control unit 10 acquires the current position information (parking position information) (A) through the current position detection unit 11. (Step S2). Next, it is determined whether or not the acquired current position information (A) belongs to the frequent theft area (step S3). This determination is performed by comparing the frequent theft area information stored in the frequent theft area storage unit 17 with the current position information (A) by the area determination means included in the control unit 10. That is, for example, it is determined whether or not the current position information (A) acquired as longitude / latitude information belongs to any one or more areas that prescribe the frequent theft areas.

  In the embodiment of the first embodiment, when it is determined that the current position information (A) does not belong to the frequent theft area (step S3, No), the process of step S10 is performed according to the power OFF operation of step S1. The power of the navigation device 1 is completely turned off and the process is terminated. Here, “power supply completely OFF” means that power supply from the power supply unit 18 to all parts (including the control unit 10) constituting the navigation device 1 is cut off. That is, in the embodiment of Example 1, when the point where the power is turned off by the user is not in the frequent theft area, it is assumed that there is little fear of theft, and priority is given to the suppression of power consumption, and the navigation apparatus 1 is completely powered No processing is executed after turning OFF. As a result, no power is used until the power is turned on again by the user, so that power consumption is minimized.

  On the other hand, returning to step 3, when the control unit 10 determines that the current position information (A) belongs to the frequent theft areas (step S3, Yes), priority is given to theft monitoring over suppression of power consumption. . In other words, in this case, when the power OFF operation (step S1) is performed, the control unit 10 does not supply the power supplied from the power supply unit 18 to the other parts constituting the navigation device 1 and measures the time. In step S4, the navigation apparatus 1 is turned on periodically (at every predetermined time T1) (the power is supplied to all parts) (step S4), and each time the power is turned on, the current position at that time Information (B) is acquired via the current position detector 11 (step S5). Next, matching / disagreement between the current position information (B) when the power is turned on and the current position information (A) obtained when the power is turned off is checked (step S6).

  At this time, when the current position information (A) matches the current position information (B) (step S6, No), it is considered that the navigation device 1 has not moved, that is, theft has not occurred, and the navigation device 1 Is set to the theft monitoring mode (step S8), and from this point in time, counting of the predetermined time T1 is started again.

  Note that the control unit 10 supplies the power supplied from the power supply unit 18 to other parts of the navigation device 1 when the navigation device 1 is powered on (step S4).

  As described above, the process of steps S4 → S5 → S6No → S8 is a routine process and is repeated until the power of the navigation device 1 is turned on again or the battery is exhausted by a user operation. It becomes.

  If the control unit 10 determines in step S6 that the current position information (A) and the current position information (B) do not match, the control unit 10 regards that the navigation device 1 has been illegally taken out of the vehicle (step 6). , Yes), the latest current location information (B) is transmitted to the center server C via the wireless communication unit 16 (theft occurrence notification). Then, the process proceeds to a remote operation acceptance process (step S9) for theft tracking.

  The details of step S9 are shown in the flowchart of FIG. On the assumption that the navigation device 1 has been stolen, the control unit 10 maintains a power-on state and waits until a predetermined command code is received from the center server C (step S11, Yes) (step S11, No, step S12). When a predetermined instruction code is received (step S11, Yes), an operation corresponding to each instruction code is executed (step 13). Here, processing for invalidating the operation / input of the navigation device 1, that is, so-called remote lock processing is executed. Various functions can be set to be disabled by remote lock.

  Here, for example, a remote lock process for invalidating the execution of all functions of the navigation device 1, a batch erasure process for erasing personal information such as an address stored in the navigation device 1, and the current position information in a predetermined cycle Acquisition and transmission processing can be executed. The remote lock process is a process that is executed to prevent the thief from using the navigation device, the personal information batch deletion process is a process that is executed to prevent leakage of personal information, and the current location information transmission process is a theft This is a process for tracking the navigation device, and each functions as a countermeasure mode in case of theft.

  As described above, according to the navigation device of the embodiment of the first embodiment, when the place where the power is turned off is not in the frequent theft area, it is considered that there is little fear of theft, and the suppression of power consumption is given priority, and the power is completely turned off. No processing is executed after (step S10). As a result, no power is used until the power is turned on again, so that the power consumption is minimized. On the other hand, when the theft occurrence is detected (step S6, Yes), an appropriate countermeasure mode is configured to function when the theft occurs. Therefore, compared with the conventional device that periodically transmits current position information or the like regardless of whether or not it belongs to the theft occurrence area, the risk of running out of the battery is reduced, and theft monitoring and Tracking at the time of theft is possible.

  Next, a second embodiment of the present invention will be described. Since the overall configuration of the embodiment of the second embodiment is the same as that shown in FIG. 1, the navigation of the second embodiment is described here using the flowchart of FIG. 4 as a difference from the first embodiment. A control operation related to theft monitoring of the control unit 10 in the apparatus 1 will be described. Also in the second embodiment, the control operation related to the theft monitoring, that is, the main operation of the present invention is started by an operation of turning off the power. That is, until the power-off operation is performed (step S21, Yes), normal processing (for example, guidance route search processing) is performed, and the theft monitoring operation is not performed (step S21, No). ).

  In the second embodiment, the control unit 10 determines whether the current position information (A) belongs to the frequent theft area (Yes in step S23) and also determines that the current position information (A) does not belong to the frequent theft area (step S23). S23, No), after the power is turned off, power is supplied from the power supply unit 18 to the control unit 10, whereby the control unit 10 periodically (at every predetermined time T1 or T2 (* T1 <T2)) Is turned on (steps S24 and S25), and each time the power is turned on, the current position information (B) at that time is acquired via the current position detector 11 (step S26). The subsequent processing (S27 to S30) is the same as that of the first embodiment shown in the flowchart of FIG.

  That is, in the embodiment of Example 2, the current position information is acquired by periodically turning on the power automatically regardless of whether or not it belongs to the frequent theft area, but the current position is in the frequent theft area. Note that the period T1 is set to be shorter (T1 <T2) than the period T2 when it is not in the theft-prone area. By adopting such a configuration, unlike the first embodiment, theft monitoring is always executed, but the current position information (B) is acquired particularly frequently only in the theft-prone area. However, by comparing the current position information (A) as appropriate, there is a possibility that theft may occur while reducing power consumption by reducing the degree of acquisition of the current position information in places where the theft occurrence rate is low. In high places, it is possible to realize appropriate theft monitoring by prioritizing frequent current position information acquisition over power consumption reduction.

  In the above embodiment, a so-called in-vehicle navigation device is illustrated as an example of an in-vehicle electronic device. However, the present invention is compatible with, for example, a music player, a DVD player, analog broadcasting, and digital broadcasting that do not have other navigation functions. The present invention can be similarly applied to various in-vehicle electronic devices such as a television receiver.

  Moreover, in the said Example 1 and Example 2, although the example which receives the command code of a remote lock from a center server as a center server which manages a predetermined | prescribed apparatus was demonstrated, this invention is limited to this is not. For example, a predetermined device is a vehicle, a mobile phone or a personal computer owned by the owner of the navigation device 1, and position information is transmitted to the mobile phone or personal computer, and a remote lock command code is received from the mobile phone or personal computer. You may comprise.

DESCRIPTION OF SYMBOLS 1 ... Navigation apparatus 10 ... Control part 11 ... Current position detection part 12 ... Input part 13 ... Display part 14 ... Voice alerting | reporting part 15 ... Map data storage part 16 ... · Wireless communication unit 17 ··· Theft frequent storage area K ··· Relay base station N ··· Communication network P · · · Prefectural police headquarters server C · · · Navigation device management center server

Claims (7)

In-vehicle equipped with a current position detection unit for detecting the current position, and a control unit that turns on the power at regular intervals after the power OFF operation, acquires the current position at the time of power ON from the current position detection unit, and transmits the current position to a predetermined device Electronic equipment,
The in-vehicle electronic device includes a theft-prone area storage unit that stores theft-prone area information specified in advance as an area where theft frequently occurs,
The control unit compares the current position acquired from the current position detection unit at the time of power-off operation with the theft-prone area information stored in the theft-prone area storage unit, and the current position at the time of the power-off operation is the theft If it is determined that it belongs to a frequent occurrence area,
The power is turned on at regular intervals after the power-off operation, the current position is obtained from the current position detection unit when the power is turned on, and the current position obtained during the power-off operation is collated. An in-vehicle electronic device that transmits a current position acquired when power is turned on to the predetermined device.   The in-vehicle electronic device according to claim 1, wherein when the collation result matches, the power source of the in-vehicle electronic device is turned off.   The predetermined device that has received the current position transmits a predetermined command code to the vehicle-mounted electronic device, and the control unit invalidates operation and / or input of the vehicle-mounted electronic device according to the received command code. The in-vehicle electronic device according to claim 1, wherein the electronic device is mounted on a vehicle.   When the control unit determines that the current position at the time of power-off operation does not belong to the theft-prone area, the controller determines that the current position at the time of power-off operation belongs to the theft-prone area for a predetermined time The in-vehicle electronic device according to any one of claims 1 to 3, wherein the length is longer than that of the vehicle-mounted electronic device.   The control unit according to any one of claims 1 to 3, wherein when the current position at the time of the power OFF operation is determined not to belong to the frequent theft area, the control unit maintains the power OFF state until the power ON operation is performed. The vehicle-mounted electronic device in any one.   6. The in-vehicle electronic device according to claim 1, wherein theft frequent occurrence area information is updated and acquired as needed.   The in-vehicle electronic device according to claim 1, wherein the in-vehicle electronic device is a navigation device.

Images