JP2009020731A - System for warning to item left behind in vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for warning to an item left behind in a vehicle which warns an occupant in the vehicle that a mobile terminal such as a mobile phone is left behind in the vehicle in order to preventing a mobile terminal from being left behind. <P>SOLUTION: After vehicle stop, when opening/closing a door of the vehicle or removing/inserting an ignition key, a navigation device 20 obtains vibration information from a mobile phone 70. Since the stopped vehicle is in an almost static state, when the mobile phone 70 is left in the vehicle by mistake, the vibration detected by the mobile phone 70 is small. When the vibration information obtained from the mobile phone 70 is small, navigation device 20 determines that the mobile phone 70 is being left in the vehicle. When the navigation device 20 recognizes that the mobile phone 70 is left behind, a warning sound is issued from a speaker 28 or a warning is displayed on a display 26 to notify the occupant that the mobile phone 70 is left behind. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a left-behind vehicle warning system that warns passengers of left-behind items in a vehicle.

  In recent years, mobile terminal devices such as mobile phones have been widely used. For this reason, it is common for passengers of vehicles to carry these portable information terminals. In this way, with the widespread use of mobile terminal devices, misplacement of mobile terminal devices in the vehicle is also increasing. If the mobile terminal device is left behind in the vehicle, it may be lost due to theft or the mobile terminal device may be damaged depending on weather conditions.

Therefore, it has been proposed to detect forgotten things in a portable terminal device such as a mobile phone left in the vehicle by using an in-vehicle device such as a navigation device mounted on the vehicle (see Patent Documents 1 and 2). ).
JP-A-10-291446 JP 2006-301909 A

  Patent Document 1 discloses a system that detects that a mobile phone is left unattended when a passenger gets off the vehicle while the mobile phone is connected to an in-vehicle adapter, and warns that effect. Patent Document 2 discloses a system for managing presence / absence of an article left in the vehicle by communicating with an ID tag attached to the item left in the vehicle.

  However, in the case of the system disclosed in Patent Document 1, in order to detect misplacement of the mobile phone, the mobile phone needs to be connected to an in-vehicle adapter. For this reason, it is difficult to detect misplacement of the mobile phone when the connection between the mobile phone and the in-vehicle adapter is released. In the case of the system disclosed in Patent Document 2, the presence / absence of an article left in the vehicle through a mobile phone is managed. Therefore, when the mobile phone itself is left in the car, there is a problem that communication between the in-vehicle device and the mobile phone becomes difficult.

  Accordingly, the present invention has been made in view of the above problems, and its purpose is to warn a passenger of a vehicle that a mobile terminal device such as a mobile phone has been left in the vehicle and to leave the mobile terminal device forgotten. An object of the present invention is to provide an in-vehicle warning system that can reduce the number of items.

  According to the first aspect of the present invention, the vibration information acquisition means acquires vibration information from the portable terminal device when detecting post-processing after the vehicle stops. Here, post-processing after the vehicle has stopped means processing that the passenger performs on the vehicle after the vehicle has stopped, such as closing a door of the vehicle or removing an ignition key of the vehicle. After the vehicle is stopped and the engine is stopped or the door is locked, the vehicle is almost stationary and hardly vibrates. Therefore, if the mobile terminal device is left in the vehicle, the vibration of the mobile terminal device is reduced. Therefore, the warning unit determines that the mobile terminal device is left in the vehicle when the vibration of the mobile terminal device acquired by the vibration information acquisition unit is smaller than a predetermined value. Then, the warning means warns the passenger that the mobile terminal device is left in the vehicle. Therefore, it is possible to reduce forgotten items of the mobile terminal device in the vehicle.

  In the invention according to claim 2, the warning means warns the passenger by the in-vehicle device having the navigation means. The in-vehicle device has display means for displaying an image and voice notification means for notifying route guidance by voice. Therefore, the warning means displays on the display means of the in-vehicle device a warning for forgotten things of the mobile terminal device, or emits a sound for warning the forgotten things of the mobile terminal device by the voice notification means, thereby leaving the forgotten things of the mobile terminal device. To the passenger. Therefore, the passenger can easily notice things left behind in the mobile terminal device.

  In the invention according to claim 3, the warning means notifies the passenger that the portable terminal device has been left in the vehicle when the on-vehicle device is activated. Even if the warning means warns the forgotten thing of the portable terminal device, the passenger may get off without noticing. In this case, when the passenger gets into the vehicle next time and activates the in-vehicle device, the warning means warns the forgotten thing of the mobile terminal device, so that the passenger forgets the mobile terminal device in the car when getting off the previous time. You can notice. Therefore, it is possible to reduce repetition of forgotten things in the mobile terminal device.

  In the invention according to claim 4, the warning means warns the forgotten thing of the portable terminal device by using not only the in-vehicle apparatus but also the light emitting means or the ringing means provided in the vehicle. Even if the warning means warns the passenger about an object left behind by the in-vehicle device, for example, closing the door of the vehicle makes it difficult to recognize the warning by the in-vehicle device. Therefore, the warning means issues a warning to the occupant using light emitting means such as lights and blinkers, or sounding means such as horns and buzzers. Thus, the passenger can notice forgotten things even when outside the vehicle.

Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 shows a schematic configuration of the in-vehicle lost article warning system according to the first embodiment of the present invention.
The in-vehicle lost article warning system 10 includes an in-vehicle device 11. The in-vehicle device 11 includes a navigation device 20, a door device 40, an engine device 50, and a communication device 60. The door device 40 includes a door ECU (Electronic Control Unit) 41 and a door 42. The door device 40 detects opening / closing of the door 42 by the door ECU 41. The door ECU 41 outputs the detected opening / closing of the door 42 to the navigation device 20 as an electrical signal. The engine device 50 includes an engine ECU 51, an engine key 52, and an engine body (not shown). The engine device 50 detects whether an engine key 52 such as an ignition key is inserted into or removed from a predetermined insertion port by the engine ECU 51. The engine ECU 51 outputs the detected insertion / extraction of the engine key 52 to the navigation device 20 as an electrical signal.

  As shown in FIG. 2, the navigation device 20 includes a control unit 21, a position detector 22, a map data storage unit 23, an operation switch 24, an external memory 25, a display unit 26, a voice controller 27, a speaker 28, a voice recognition unit 29, It comprises a microphone 30, a remote control sensor 31, and a remote control terminal (hereinafter abbreviated as “remote control”) 32. The control unit 21 has a CPU, a ROM, a RAM, an interface (not shown), and a bus line that electrically connects them. That is, the control unit 21 is configured by a microcomputer. The control unit 21 includes various information input from the position detector 22, the map data storage unit 23, the operation switch 24, the external memory 25, the display unit 26, the voice controller 27, the speaker 28, the voice recognition unit 29, and the remote control sensor 31. Based on the above, a predetermined process is performed. The processing executed by the control unit 21 includes, for example, map scale change processing, menu display selection processing, destination setting processing, route search execution processing, route guidance start processing, current position correction processing, display screen change processing, and volume adjustment processing. Etc. are included. The control unit 21 controls the in-vehicle device 11 including the navigation device 20 in an integrated manner according to a computer program recorded in the ROM, for example.

  The position detector 22 includes a geomagnetic sensor 33, a gyroscope 34, a distance sensor 35, a GPS receiver 36, and the like. The GPS receiver 36 receives radio waves transmitted from artificial satellites. The geomagnetic sensor 33, the gyroscope 34, the distance sensor 35, and the GPS receiver 36 all include errors having different properties. Therefore, the control unit 21 detects an accurate position while complementing the position information detected and received by the geomagnetic sensor 33, the gyroscope 34, the distance sensor 35, and the GPS receiver 36 of the position detector 22. The configuration of the position detector 22 may be a part of the geomagnetic sensor 33, the gyroscope 34, the distance sensor 35, or the GPS receiver 36 depending on the required accuracy, and detects the steering angle of the vehicle. A rotation sensor or a vehicle wheel rotation sensor may be added.

  The map data storage unit 23 is composed of a recording medium such as an HDD (Hard Disk Drive) or a DVD (Digital Versatile Disk). The map data storage unit 23 stores various types of data including so-called map matching data, map data, and landmark data for improving the accuracy of position detection. The map data storage unit 23 is not limited to the above-described HDD or DVD, but may be a nonvolatile memory card.

  The operation switch 24 is configured by, for example, a touch switch or a mechanical switch integrated with the display unit 26. With the operation switch 24, operation instructions for various functions are input to the control unit 21 by switch operation. From the operation switch 24, for example, a change in map scale, selection of menu display, setting of a destination, search for a route, start of route guidance, correction of a current position, change of a display screen, or adjustment of a volume are used as operation instructions. Entered. The remote controller 32 is also provided with a plurality of switches (not shown). Various instruction signals are also input to the control unit 21 via the remote control sensor 31 in the same manner as the operation switch 24 by operating the switch of the remote control 32. The control unit 21 performs various functions according to the input instruction signals. As described above, the operation switch 24 and the remote controller 32 can input the execution of the same function to the control unit 21 by any switch operation.

  When the destination is set from the remote control 32 via the operation switch 24 or the remote control sensor 31, the control unit 21 searches for an optimum route from the current position detected by the position detector 22 to the set destination. Then, the control unit 21 sets the searched route as a guidance route and displays it on the display unit 26. As a method for automatically searching for the optimum route in this way, for example, the Tykstra method or the like is applied. The set guidance route is displayed on a map displayed on the display unit 26 based on the map data, together with a current position mark indicating the current position detected by the position detector 22. The map displayed on the display unit 26 may additionally display other information such as the current time, traffic jam information, and estimated arrival time together with the current position mark indicating the current position and the guidance route.

  The external memory 25 has a storage device that can be written at any time, such as an HDD or a removable memory. The external memory 25 may be used in combination with the map data storage unit 23. The external memory 25 stores, for example, data that should be retained even after the power is turned off, and copies and stores frequently used data from the map data storage unit 23. The display unit 26 includes a display such as a liquid crystal or an organic EL. The display unit 26 displays a map displayed for route guidance to the destination and a screen for selecting the destination. The display unit 26 is preferably capable of full color display.

  The speaker 28 emits a predetermined sound based on the sound signal input from the sound controller 27. The voice signal input from the voice controller 27 to the speaker 28 includes, for example, voice for route guidance by the navigation device 20, voice for explaining the screen operation of the display unit 26, or the result of voice recognition by the voice recognition unit 29. The voice for notifying is included.

  The microphone 30 inputs a voice uttered by a passenger of the vehicle to the voice recognition unit 29 as an electric signal. The voice recognition unit 29 compares the passenger's voice input via the microphone 30 with the vocabulary data in the recognition dictionary stored in the storage unit (not shown), and uses the lexical data with the highest degree of matching as the recognition result. Input to the voice controller 27. The voice controller 27 controls the voice recognition unit 29 and performs voice output by talkback through the speaker 28 to the passenger who has input voice. Further, the voice controller 27 inputs the recognition result by the voice recognition unit 29 to the control unit 21.

  Based on the information input from the voice recognition unit 29, the control unit 21 performs predetermined processing on the voice uttered by the passenger. Here, the processing executed by the control unit 21 includes, for example, change of map scale, selection of menu display, setting of destination, execution of route search, start of route guidance, correction of current position, change of display screen, or volume adjustment. Etc. are included. In addition, the route guidance voice information processed by the control unit 21 is appropriately notified from the speaker 28 to the passenger via the voice controller 27.

The communication device 60 is connected to the navigation device 20. The communication device 60 receives traffic information, weather information, facility information, advertisement information, or the like provided from outside such as VICS. Further, the communication device 60 transmits vehicle information or user information to the outside via the VICS. The control unit 21 processes information received from the outside by the communication device 60. Moreover, the control part 21 outputs the information processed via the communication apparatus 60 to the exterior as needed.
Further, as shown in FIG. 1, the communication device 60 also communicates with a mobile phone 70 as a mobile terminal device that is a target of the left-behind item warning system. The mobile terminal device is not limited to the mobile phone 70 but may be a PDA or a personal computer, for example. The cellular phone 70 includes a control unit 71, a communication unit 72, an operation unit 73, a display unit 74, a vibration sensor 75, and the like.

  The control unit 71 includes a microcomputer having a CPU, a ROM, a RAM, an interface, a bus for connecting them, and the like. The communication unit 72 performs communication with an external base station and also performs communication with the in-vehicle device 11 via the communication device 60. Communication between the communication unit 72 of the mobile phone 70 and the communication device 60 of the in-vehicle device 11 is performed via wireless communication means using microwaves such as infrared rays or Bluetooth (registered trademark). The operation unit 73 has an input button such as a numeric keypad. The display unit 74 has, for example, a liquid crystal display. The control unit 71 controls each unit of the mobile phone 70 according to a computer program recorded in the ROM, for example.

  The vibration sensor 75 is built in the mobile phone 70 like a gyro sensor, for example, and detects vibration applied to the mobile phone 70. The vibration detected by the vibration sensor 75 is output to the control unit 71 as an electrical signal. When there is an instruction from the in-vehicle device 11, the control unit 71 outputs information detected by the vibration sensor 75 to the navigation device 20 of the in-vehicle device 11 as vibration information via the communication unit 72. The vibration sensor 75, the communication device 60 of the in-vehicle device 11, and the navigation device 20 constitute a vibration information acquisition unit that acquires vibration information from the mobile phone 70. Further, the control unit 21 of the navigation device 20 constitutes a warning means in the claims together with the display unit 26, the voice controller 27, and the speaker 28. Further, the voice controller 27 and the speaker 28 constitute voice notification means in the scope of claims.

Next, the operation of the in-vehicle lost article warning system 10 having the above-described configuration will be described.
(Warning process for lost items)
When the vehicle stops, the control unit 21 of the navigation device 20 detects whether or not the cellular phone 70 is left as a forgotten item in the vehicle, and warns the passenger when the forgotten item is detected in the cellular phone 70. This forgotten object detection and warning process will be described with reference to FIG.

  The control unit 21 of the navigation device 20 detects an event after the vehicle stops (S101). Here, the events detected by the control unit 21 are, for example, opening / closing of the door 42 and removal of the engine key 52. As described above, the control unit 21 detects opening / closing of the door 42 and removal of the engine key 52, which are post-processing after the vehicle is stopped and the engine is stopped, as events. The control unit 21 detects from the door ECU 41 whether the door 42 of the vehicle, in particular, the door 42 on the driver's seat side has been opened or closed. When getting off the vehicle, the passenger of the vehicle opens the door 42 and gets out of the vehicle, and then closes the door 42. Therefore, the control unit 21 can detect post-processing as an event by detecting opening / closing of the door 42 of the vehicle from the door ECU 41. Further, the control unit 21 detects that the engine key 52 has been removed from the engine ECU 51. When the vehicle passenger gets off, the engine key 52 is removed. Therefore, the control unit 21 can detect post-processing as an event by detecting the removal of the engine key 52 from the engine ECU 51. In addition, the control part 21 may detect the post-process after the stop of a vehicle from other processes not only the opening / closing of the door 42 or the removal of the engine key 52. The control unit 21 detects post-processing by any means such as detecting the passenger's getting off from a weight sensor provided in the driver's seat of the vehicle, or detecting the passenger's getting off from the removal of the seat belt. May be.

  When the control unit 21 of the navigation device 20 detects an event of post-processing in step S101 as described above, the control unit 21 transmits a signal related to a state request to the mobile phone 70 (S102). The status request is a signal that the navigation device 20 transmits to the mobile phone 70 in order to acquire information from the mobile phone 70. When the navigation device 20 transmits the status request, the navigation device 20 stands by until a signal is received from the mobile phone 70.

  When the status request is transmitted from the navigation device 20, the cellular phone 70 receives this status request (S111). At this time, the navigation device 20 and the mobile phone 70 communicate using a wireless communication medium such as infrared or microwave. When the cellular phone 70 receives a status request from the navigation device 20 in step S111, the cellular phone 70 detects vibration (S112). The control unit 71 of the mobile phone 70 acquires the vibration detected from the vibration sensor 75 as an electric signal. Then, the control unit 71 creates vibration information from the acquired electrical signal, and transmits the created vibration information to the navigation device 20 (S113).

  The navigation device 20 receives the vibration information transmitted from the mobile phone 70 (S103). When receiving the vibration information, the control unit 21 of the navigation device 20 determines whether or not the vibration of the mobile phone 70 detected by the vibration sensor 75 is smaller than a predetermined threshold (S104). A vehicle that is stationary and stationary has less vibration than driving and moving. Therefore, when the mobile phone 70 is left as a forgotten thing in a vehicle that has been stopped and subjected to the above-described post-processing, vibration of the mobile phone 70, that is, vibration detected by the vibration sensor 75 is also reduced. Further, the mobile phone 70 left in the parked vehicle is less vibrated than the case where the passenger carries the mobile phone 70. Therefore, when the control unit 21 of the navigation device 20 determines that the vibration information acquired from the mobile phone 70 is smaller than the predetermined threshold value in step S104, the control unit 21 determines that the mobile phone 70 is left as a forgotten item in the vehicle.

When the control unit 21 determines that the vibration information is smaller than the predetermined threshold value in step S104, the control unit 21 stores the mobile phone forget flag in the external memory 25 (S105). Note that the control unit 21 can store the mobile phone forget flag not only in the external memory 25 but also in an arbitrary recording unit as long as the recording medium can hold data even after the power is turned off. Thereby, the control part 21 records that the mobile telephone 70 was left as a forgotten thing in the vehicle. And the control part 21 emits an audio | voice through the speaker 28 (S106). For example, the control unit 21 emits a sound such as “Forgot the mobile phone” or “There is something left in the car” from the speaker 28, so that the mobile phone 70 is left in the car for the passenger. Encourage recognition.
On the other hand, the control part 21 complete | finishes a process, when it determines that vibration information is more than a predetermined threshold value in step S104.

(Re-warning for lost items)
Even if the passenger is warned of things left behind by the mobile phone 70 by the above procedure, the passenger may not notice. Therefore, the control unit 21 of the navigation device 20 warns the passenger of a forgotten thing again. The rewarning process will be described with reference to FIG.
After the cellular phone 70 is left as a forgotten item in the vehicle, the passenger gets on the vehicle again and starts the vehicle. At this time, the navigation device 20 is activated when the vehicle is started (S201). When the activation process is completed, the control unit 21 of the navigation device 20 reads the mobile phone forget flag (S202). Specifically, the control unit 21 reads the mobile phone forget flag stored in the external memory 25 in step S105 of FIG.

  When the mobile phone 70 reads the mobile phone forget flag stored in the RAM or the external memory 25, the mobile phone 70 determines whether the flag is on, that is, whether the flag is set (S203). If the passenger forgets the mobile phone 70 in the car at the previous stop, the flag stored in the external memory 25 is set. Therefore, when the flag is set, it is considered that the mobile phone 70 was left as a forgotten item in the vehicle at the previous stop.

  Therefore, the control unit 21 notifies the passenger by voice through the speaker 28 that the mobile phone 70 has been left as a forgotten item (S204). At this time, the control unit 21 utters a voice such as “I forgot my mobile phone” or “I forgot something in the car” from the speaker 28, so that the mobile phone 70 can be used when the passenger leaves the vehicle. Notify that was left in the car. In addition, the control unit 21 notifies the display unit 26 that the mobile phone 70 has been left as a forgotten item along with a voice notification (S205). At this time, the control unit 21 displays, for example, the same wording as the voice notification on the display unit 26. As a result, the passenger is notified that the mobile phone 70 was left as a forgotten item at the last disembarkation. As a result, even if the passenger forgets the mobile phone 70 in the car, the passenger can notice it when he gets on the car again.

On the other hand, when the control unit 21 determines in step S203 that the mobile phone forgetting flag is not set, the process ends.
In the first embodiment described above, the navigation device 20 acquires vibration information from the mobile phone 70 when post-processing is performed after the vehicle stops. When it is determined from the vibration information that the vibration of the mobile phone 70 is small, the mobile phone 70 is likely to be left in the vehicle as a forgotten item. For this reason, the control unit 21 of the navigation device 20 urges the passenger to recognize the forgotten things by emitting a sound from the speaker 28. Therefore, the passenger can easily recognize that the cellular phone 70 has been left as a forgotten item in the vehicle when getting off the vehicle, and can reduce the leaving of the cellular phone 70 in the vehicle.

  Further, in the first embodiment, when an object left behind is detected when the passenger gets off, the control unit 21 records that fact. Then, when the passenger gets on again and starts the vehicle, the control unit 21 notifies the passenger that the forgotten thing has been detected together with the activation of the navigation device 20 by sound from the speaker 28 and display on the display unit 26. Thus, when the passenger gets on and starts the vehicle, the passenger recognizes that he / she has forgotten the mobile phone 70 in the vehicle when getting off the vehicle. Therefore, the occupant can notice the forgotten things when boarding, and the repetition of the forgotten things of the mobile phone 70 can be reduced.

(Second Embodiment)
FIG. 5 shows a schematic configuration of the in-vehicle lost article warning system 10 according to the second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the component substantially the same as 1st Embodiment, and description is abbreviate | omitted.
In the second embodiment, the navigation device 20 is connected to the vehicle ECU 80. The vehicle ECU 80 is connected to the headlight 81, the winker 82 and the horn 83. The vehicle ECU 80 controls the headlight 81, the blinker 82, and the horn 83 in accordance with instructions from the navigation device 20 and other input means. The headlight 81 is turned on or off according to an instruction from the vehicle ECU 80. Similarly, the blinker 82 blinks according to an instruction from the vehicle ECU 80, and the horn 83 sounds according to an instruction from the vehicle ECU 80. The headlight 81 and the blinker 82 constitute light emitting means, and the horn 83 constitutes sounding means. The light emitting means is not limited to the headlight 81 and the winker 82, but may be another light emitting device provided in the vehicle, and the sounding means is not limited to the horn 83 but may be another sounding device such as a buzzer. .

Next, the operation of the in-vehicle warning system 10 according to the second embodiment will be described. The description of the same processing as that of the first embodiment is omitted.
When the vehicle stops, the control unit 21 of the navigation device 20 detects whether or not the cellular phone 70 is left as a forgotten item in the vehicle. The detection of forgotten items and warning processing will be described with reference to FIG.

The control unit 21 of the navigation device 20 detects an event after the vehicle stops (S301). When the navigation device 20 detects a post-processing event, the navigation device 20 transmits a signal related to a status request to the mobile phone 70 (S302). When the navigation device 20 transmits the status request, the navigation device 20 stands by until a signal is received from the mobile phone 70.
When the status request is transmitted from the navigation device 20, the mobile phone 70 receives this status request (S311). And the mobile telephone 70 will detect a vibration, if a state request | requirement is received from the navigation apparatus 20 (S312). The control unit 71 of the mobile phone 70 creates vibration information from the vibration detected by the vibration sensor 75, and transmits the created vibration information to the navigation device 20 (S313).

  The navigation device 20 receives the vibration information transmitted from the mobile phone 70 (S303). When receiving the vibration information, the control unit 21 of the navigation device 20 determines whether or not the vibration of the mobile phone 70 detected by the vibration sensor 75 is smaller than a predetermined threshold (S304). When the control unit 21 determines that the vibration information acquired from the mobile phone 70 is smaller than the predetermined threshold value, the control unit 21 determines that the mobile phone 70 is left as a forgotten item in the vehicle, and stores the mobile phone forget flag in the external memory 25. (S305). And the control part 21 outputs the notification instruction | indication which notifies a warning with respect to vehicle ECU80 (S306).

  When the notification instruction is output from the control unit 21 of the navigation device 20, the vehicle ECU 80 turns on the headlight 81 or blinks the blinker 82 (S321). The vehicle ECU 80 may turn on or blink either one of the headlight 81 or the blinker 82, and may turn on or turn off both the headlight 81 and the blinker 82. At the same time, the vehicle ECU 80 sounds the horn 83 (S322). When the control unit 21 detects an event in step S301 described above, it is highly likely that the passenger has already got off the vehicle and is outside the vehicle. Therefore, even if the navigation device 20 warns of forgotten things, it may not be transmitted to the passenger. On the other hand, by turning on or blinking the headlight 81 or the blinker 82 and sounding the horn 83, the passenger can easily give a visual or audible warning emitted from the vehicle even when the passenger is outside the vehicle. It becomes possible to recognize.

When the control unit 21 determines in step S304 that the vibration information is greater than or equal to the predetermined threshold value, the control unit 21 ends the process.
Even in the second embodiment, after the detection and warning of forgotten things are performed, when the navigation device 20 is restarted, the mobile phone forgotten flag stored in step S305 is used to re-warn the passengers of forgotten things. Good. In the second embodiment, the example in which all of the headlight 81, the blinker 82, and the horn 83 are turned on and sounded has been described. However, at least one of the headlight 81, the blinker 82, or the horn 83 may be driven to give a visual or audible warning.

  In the second embodiment, the control unit 21 performs not only a warning by the navigation device 20 but also a visual and audible warning using the vehicle headlight 81, the blinker 82, and the horn 83. Therefore, even when the passenger gets off the vehicle and is outside the vehicle, the passenger easily recognizes the forgotten thing of the mobile phone 70 in the vehicle. Therefore, the forgetfulness of the mobile phone 70 in the vehicle can be further reduced.

  In the plurality of embodiments described above, examples in which these embodiments are individually implemented have been described. However, the two embodiments may be combined. For example, after warning about forgotten things of the mobile phone 70 from the navigation device 20 according to the first embodiment, the headlight 81, the blinker 82 and the horn 83 are warned to a passenger who is likely to be outside the vehicle according to the second embodiment. May be. In addition, after the warning from the navigation device 20 according to the first embodiment, when the mobile phone 70 is informed in the vehicle as a forgotten thing even after a predetermined period of time, a configuration for issuing a warning outside the vehicle according to the second embodiment It is good.

  The present invention described above is not limited to the above-described embodiment, and can be applied to various embodiments without departing from the gist thereof.

The block diagram which shows schematic structure of the in-vehicle thing warning system by 1st Embodiment of this invention. The block diagram which shows schematic structure of the navigation apparatus by 1st Embodiment of this invention. Schematic showing the flow of a forgotten thing warning in the vehicle according to the first embodiment of the present invention. Schematic showing the flow of re-warning of a forgotten thing warning according to the first embodiment of the present invention The block diagram which shows schematic structure of the in-vehicle thing warning system by 2nd Embodiment of this invention. Schematic showing the flow of a forgotten thing warning according to the second embodiment of the present invention

Explanation of symbols

  In the drawing, 10 is a forgotten object warning system, 11 is an in-vehicle device, 20 is a navigation device, 21 is a control unit (vibration information acquisition means, warning means), 26 is a display unit (warning means, display means), and 27 is a voice controller ( Warning means, voice notification means), 28 a speaker (warning means, voice notification means), 41 a door ECU (stop processing detection means), 51 an engine ECU (stop processing detection means), 60 a communication device (vibration information acquisition) Means), 70 is a mobile phone (portable terminal device), 75 is a vibration sensor (vibration information acquisition means), 81 is a headlight (light emission means), 82 is a blinker (light emission means), and 83 is a horn (sounding means). .

Claims (4)

An in-vehicle device mounted on a vehicle and having navigation means;
Communication means provided in the in-vehicle device and capable of wireless communication with the mobile terminal device;
Stop processing detection means for detecting post-processing after the vehicle stops;
Vibration information acquisition means for acquiring vibration information of the mobile terminal device from the mobile terminal device when the post-processing of the vehicle is detected by the stop processing detection means;
Warning means for determining that the mobile terminal device is left inside the vehicle when the vibration of the mobile terminal device acquired by the vibration information acquisition means is smaller than a predetermined value, and for warning a passenger of the vehicle; ,
An in-vehicle lost-item warning system characterized by comprising: The in-vehicle device has display means for displaying an image of the position of the vehicle together with map information, and voice notification means for notifying the vehicle route guidance based on the map information by voice,
The warning means indicates that the portable terminal device is left in the vehicle by the display means by at least one of the display on the display means and the voice notification by the voice notification means. The in-vehicle lost-item warning system according to claim 1, further comprising:   3. A forgotten in-vehicle warning according to claim 2, wherein when the portable terminal device is left inside the vehicle, the warning means notifies a passenger of the vehicle at the next activation of the in-vehicle device. system.   4. The warning device according to claim 1, wherein the warning device warns that the portable terminal device is left inside the vehicle by using a light emitting device or a ringing device provided in the vehicle. Anything left behind in the car warning system.

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