JP2006195879A - Mislaying prevention device and mislaying warning method for individual's belongings - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mislaying prevention device and a mislaying warning method for an individual's belongings allowing for appropriately issuing a warning against the mislaying of an individual's belongings in a car only when use of a car shared by a plurality of persons has ended. <P>SOLUTION: The device comprises: a power supply stop detection part 11 for detecting the fact that an accessory power source is OFF; an individual's belongings detection part 13 for detecting the fact that an individual's belongings are mounted on an in-car device; a registered location detection part 12 for detecting the fact that the present position of the car corresponds to the location registered beforehand; and a state of mislaying determination part 24 for outputting a warning signal when the detection of the three facts, or that an accessory power source is OFF, that an individual's belongs are mounted on an in-car device, and that the present position of the car corresponds to the location registered beforehand, is simultaneously made. An alarm is not issued so long as the position of the car does not correspond to the registered location even if a driver leaves the car at some outing place. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a personal property misplacement prevention device and a misplacement warning method, and more particularly, to a device for preventing personal belongings from being misplaced in a vehicle when a vehicle shared by a plurality of people is used. And suitable.

  It is common practice for multiple people to share a single car, such as car sharing and car rental. In that case, portable devices such as mobile phones and portable MP3 (MPEG Audio Layer-3) players, music media such as CD (Compact Disc), DVD (Digital Versatile Disk), MD (Mini Disc), ETC (Electronic Toll Collection) Personal property such as information cards such as cards may be brought into the car and used. If you use personal belongings in a shared car, you must always bring them back after using the car, but you may forget it.

Conventionally, an apparatus for preventing the user from forgetting to remove the ETC card from the ETC in-vehicle device has been proposed (see, for example, Patent Documents 1 to 3).
JP 2004-220146 A JP 2001-14500 A Japanese Patent Laid-Open No. 2002-230601

  In the technologies described in Patent Documents 1 and 2, when the power supply from the accessory power supply is stopped, it is detected whether or not the ETC card is inserted into the card insertion part of the ETC on-vehicle device. When this is the case, a buzzer is sounded to warn you that you have forgotten to remove the ETC card. In the technique described in Patent Document 3, an alarm signal is generated when an ETC card attachment state, a vehicle power-off state, and a driver door open state are detected at the same time.

  However, since the techniques of Patent Documents 1 to 3 are made to eliminate the theft damage of the ETC card, an alarm is always issued when the driver leaves the vehicle as long as the ETC card is still attached. Be emitted. Therefore, not only after the use of the car but also during the use of the car, for example, there is a problem that a warning is issued every time the driver leaves the car on the go, which is very troublesome.

  The present invention has been made to solve such a problem. Only when the use of a vehicle shared by a plurality of people is finished, an appropriate warning is given to the misplacement of personal property in the vehicle. It aims to be able to emit.

  In order to solve the above-described problems, the present invention warns when the power supply stop state from the accessory power source, the mounting state of the personal property on the vehicle-mounted device, and the matching state of the current vehicle position with respect to the registered position are detected at the same time. To generate. In addition to the above three states, a warning may be generated when the driver's getting-off behavior is further detected.

  According to the present invention configured as described above, for example, if a shared parking lot in the case of car sharing and a store parking lot in the case of a rental car are registered in advance, the vehicle is returned to the registered position and the power is turned off. Only when the personal property is still attached to the vehicle-mounted device, a warning is issued. As a result, even if the driver leaves the vehicle when the vehicle is not in the registered position, it is determined that the vehicle is still in use and no warning is issued. Therefore, only when the use of a vehicle shared by a plurality of people is completed, a warning can be appropriately issued for misplacement of personal property in the vehicle.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration example of a personal property misplacement prevention device 10 according to the present embodiment. As shown in FIG. 1, the personal property misplacement prevention device 10 according to the present embodiment includes an in-vehicle device management unit 1 such as a BUS controller, a current position detection unit 2 such as a navigation device, a portable device interface unit 3, and a boarding / alighting detection unit. 4 and a warning generation unit 5. These in-vehicle device management unit 1, current position detection unit 2, portable device interface unit 3, getting on / off detection unit 4 and warning generation unit 5 are connected via a bus line so that they can exchange information with each other. It has become.

  The in-vehicle device management unit 1 controls the current position detection unit 2, the portable device interface unit 3, the getting on / off detection unit 4, and the warning generation unit 5. The in-vehicle device management unit 1 detects that the power supply from the accessory power supply is in a stopped state, the portable device interface unit 3 is in a state where a personal property such as a portable device is mounted, and the current position detection unit 2 detects When it is detected that the current position of the vehicle to be matched matches the pre-registered position and the driver is about to get off the vehicle, it is determined that the personal property has been misplaced after using the vehicle. Then, by outputting a warning signal to the warning generation unit 5, the warning generation unit 5 generates a warning.

  The current position detection unit 2 includes, for example, a self-contained navigation sensor, a GPS receiver, and a position calculation CPU. The self-contained navigation sensor includes a vehicle speed sensor (distance sensor) that outputs a single pulse for each predetermined travel distance to detect the travel distance of the vehicle, and an angular velocity sensor such as a vibration gyro that detects the rotation angle (movement direction) of the vehicle. (Relative orientation sensor). The self-contained navigation sensor detects the relative position and direction of the vehicle using these vehicle speed sensor and angular velocity sensor.

  The position calculation CPU calculates the absolute own vehicle position (estimated vehicle position) and vehicle direction based on the relative position and direction data of the own vehicle output from the self-contained navigation sensor. The GPS receiver receives radio waves transmitted from a plurality of GPS satellites by a GPS antenna and performs a three-dimensional positioning process or a two-dimensional positioning process to calculate the absolute position and direction of the vehicle (the vehicle direction is The calculation is based on the current vehicle position and the current vehicle position one sampling time ΔT before).

  The vehicle position information and azimuth information detected in this way are used for the map matching process. The map matching processing is detected by the map data read into the map information memory (not shown) of the current position detection unit 2, the vehicle position and vehicle direction data detected by the GPS receiver, and the autonomous navigation sensor. This is a process for correcting the position of the traveling position of the vehicle on the road of the map data using the estimated vehicle position and the vehicle orientation data.

  The mobile device interface unit 3 is for connecting a mobile device such as a mobile phone or a mobile MP3 player. One or two or more portable devices can be connected to the portable device interface unit 3. When the portable device is connected, the portable device interface unit 3 acquires unique identification information for identifying the connected device from the portable device, and as portable device connection information together with information indicating that the portable device is connected. The in-vehicle device management unit 1 is notified. When the portable device is removed from the portable device interface unit 3, the in-vehicle device management unit 1 uses the identification information for identifying the removed portable device and the information indicating the removal as portable device connection information. Notice. Note that the identification information sent here may be any information that can at least identify the type of portable device (such as a mobile phone or a portable MP3 player).

  In addition, although the example using the unique identification information for specifying the kind of portable apparatus is demonstrated here as portable apparatus connection information, it is not limited to this. In the present invention, it is not always necessary to know the type of portable device, and it is sufficient to know at least whether or not the portable device is connected. In this case, it is not necessary for the mobile device interface unit 3 to acquire identification information from the mobile device, and information indicating whether or not the mobile device is connected may be notified to the in-vehicle device management unit 1 as the mobile device connection information.

  The getting-on / off detection unit 4 detects an action that the driver is about to get out of the vehicle, and corresponds to the getting-off action detecting means of the present invention. The getting-on / off detection unit 4 is constituted by, for example, a door open / close detection switch or a tactile door knob sensor. When the entrance / exit detection unit 4 is configured by a door opening / closing detection switch, when the door is opened, a door opening signal is notified to the in-vehicle device management unit 1. Moreover, when the boarding / alighting detection part 4 is comprised by the tactile-type doorknob sensor, when a driver | operator touches a doorknob, a doorknob contact signal is notified to the vehicle equipment management part 1. FIG. The in-vehicle device management unit 1 determines that the driver is about to get out of the vehicle when receiving the door opening signal or the door knob contact signal.

  The warning generation unit 5 receives a warning signal from the in-vehicle device management unit 1 and generates a warning. For example, the warning generation unit 5 includes a sound output device such as a speaker or a buzzer, and generates a warning sound. The warning generation unit 5 includes a monitor and displays a warning message on the screen. Here, when a navigation device is used as the current position detection unit 2, a device provided in the navigation device may be used as a monitor for displaying a warning message.

  It should be noted that a warning sound is generated when the driver's door is opened while the engine is off and the key is still inserted, or the headlight remains on when the engine is off. When a mechanism for generating a warning sound when the driver's seat door is opened in the state is provided, the warning sound generated when the personal property is left behind may be different from other warning sounds. In this way, it is possible to clearly notify the user of the warning sound and notify the user.

  FIG. 2 is a block diagram illustrating a functional configuration example of the on-vehicle device management unit 1 and the current position detection unit 2 described above. As shown in FIG. 2, the in-vehicle device management unit 1 according to the present embodiment includes a power supply stop detection unit 11, a personal property detection unit 13, a connected device list storage unit 23, and a misplaced state determination unit 24. Yes. In addition, the current position detection unit 2 according to the present embodiment includes a registered position detection unit 12 and a registered position storage unit 22.

  The power supply stop detection unit 11 detects that power supply from an accessory power source (not shown) is in a stopped state based on an accessory OFF signal supplied from the outside. Here, it is detected based on the accessory OFF signal that the power supply from the accessory power supply is stopped, but may be detected based on the engine OFF signal. Further, it may be detected based on a key position signal indicating a position where the key is turned.

  The connected device list storage unit 23 stores information of mobile devices connected to the mobile device interface unit 3 as a list. The stored connected device list includes an initial connected device list indicating a default connection state in which nothing is connected to the mobile device interface unit 3 and a currently connected device list indicating a current connection state. The currently connected device list is generated based on the mobile device connection information sent from the mobile device interface unit 3.

  That is, when a portable device is connected to the portable device interface unit 3, identification information for specifying the connected portable device is sent as portable device connection information. Add the identification information or connected device information generated from this to the current connected device list. When the portable device is removed from the portable device interface unit 3, identification information for specifying the removed portable device is sent as portable device connection information. Delete information about the removed mobile device from the list of currently connected devices.

  The personal property detection unit 13 detects the connection state of the portable device that can be attached to and detached from the portable device interface unit 3 by comparing the initial connection device list with the current connection device list. Here, the personal property detection unit 13 uses a mobile phone or MP3 player for the mobile device interface unit 3 when a new item not included in the initial connection device list is added to the current connection device list. It detects that the personal property such as is attached.

  The registered position storage unit 22 stores position information representing a specific place where the personal property needs to be taken home. The specific place is, for example, a shared parking lot in the case of car sharing or a store parking lot in the case of a rental car. The registered position detection unit 12 compares the vehicle current position information after the map matching process measured inside the current position detection unit 2 with the position information of the registered location stored in the registered position storage unit 22. Then, it is detected whether or not the current position of the vehicle matches the position registered in advance.

  The misplaced state determination unit 24 detects that the power supply from the accessory power supply is in a stopped state by the power supply stop detection unit 11, and a mobile phone or MP3 player as a personal property is attached to the portable device interface unit 3. The personal belonging detection unit 13 detects that the current position of the vehicle is present, the registered position detection unit 12 detects that the current position of the vehicle matches the previously registered position, and the driver tries to get off the vehicle. When it is detected by the boarding / alighting detection unit 4, it is determined that the personal property is left behind after use of the vehicle, and a warning signal is output to the warning generation unit 5.

  Next, the operation of the personal property misplacement prevention apparatus 10 according to this embodiment configured as described above will be described. FIG. 3 is a flowchart showing the processing procedure of the personal property misplacement warning method by the in-vehicle device management unit 1. In FIG. 3, the misplaced state determination unit 24 of the in-vehicle device management unit 1 determines whether or not the power supply stop detection unit 11 has detected that the power supply from the accessory power supply is stopped (step S <b> 1). ). If the power supply from the accessory power supply is not stopped, the process ends.

  On the other hand, if the power supply from the accessory power supply is in a stopped state, the misplaced state determination unit 24 detects that the mobile device interface unit 3 is connected to some portable device by the personal property detection unit 13. It is determined whether or not (step S2). If no portable device is connected to the portable device interface unit 3, the process is terminated.

  On the other hand, when any portable device is connected to the portable device interface unit 3, the misplaced state determination unit 24 makes an inquiry to the registered position detection unit 12 of the current position detection unit 2 via the bus line. Then, it is determined whether or not it is detected that the current position of the vehicle matches the position registered in advance (step S3). If the current position of the vehicle does not match the position registered in advance, the process ends.

  On the other hand, when the current position of the vehicle matches the position registered in advance, the misplaced state determination unit 24 makes an inquiry to the boarding / alighting detection unit 4 via the bus line so that the driver can It is determined whether or not an action to get off is occurring (step S4). If the driver is taking an action to get out of the vehicle, the getting-on / off detection unit 4 returns a door opening signal indicating that such an action is taking place. If there is no response, the inquiry is continued in step S4 until it is returned from the boarding / alight detecting unit 4.

  Thereafter, when a response is received from the boarding / alighting detection unit 4 that the driver is about to get off the vehicle by a door opening signal or the like, the misplacement state determination unit 24 connects the bus line to the warning generation unit 5. A warning signal is output via the warning generation unit 5 to generate a warning (step S5).

  Note that the processing in steps S2 to S5 after detecting that the accessory power supply is turned off is executed based on a backup power supply prepared separately from the accessory power supply. Moreover, the order of the processing of step S1 to step S3 is merely an example, and may be performed in any order.

  FIG. 4 is a block diagram illustrating another configuration example of the personal property misplacement prevention device according to the present embodiment. As shown in FIG. 4, the personal property misplacement prevention apparatus 20 according to another configuration includes a music media playback unit 33 instead of the portable device interface unit 3 shown in FIG. Further, the functional configuration of the in-vehicle device management unit 21 is different from the functional configuration of the in-vehicle device management unit 1 shown in FIG. Other configurations are the same as those in FIG.

  The music media playback unit 33 inserts and plays back music media such as CD, DVD, and MD. The music media playback unit 33 has a function of detecting whether or not music media as a personal property is installed. In response to an inquiry from the in-vehicle device management unit 21, whether or not the music media is installed is determined. reply.

  FIG. 5 is a block diagram illustrating a functional configuration example of the in-vehicle device management unit 21 and the current position detection unit 2. As illustrated in FIG. 5, the in-vehicle device management unit 21 does not include the connected device list storage unit 23 illustrated in FIG. 1. Further, instead of the personal property detection unit 13, a personal property detection unit 34 having a functional configuration different from that is provided. The personal property detection unit 34 makes an inquiry to the music media playback unit 33 to detect whether the music media playback unit 33 is equipped with music media.

  The misplaced state determination unit 24 is a state in which the power supply stop detection unit 11 detects that the power supply from the accessory power supply is stopped, and the music media playback unit 33 is loaded with music media as personal belongings. Is detected by the personal property detection unit 34, and it is detected by the registered position detection unit 12 that the current position of the vehicle coincides with a pre-registered position, and it is detected that the driver is getting out of the vehicle. When detected by the detection unit 4, it is determined that the personal property is left behind after use of the vehicle, and a warning signal is output to the warning generation unit 5.

  FIG. 6 is a block diagram illustrating another configuration example of the personal property misplacement prevention device according to the present embodiment. As shown in FIG. 6, the personal property misplacement prevention device 30 according to another configuration includes an ETC in-vehicle device 43 instead of the portable device interface unit 3 shown in FIG. 1. Further, the functional configuration of the in-vehicle device management unit 31 is different from the functional configuration of the in-vehicle device management unit 1 shown in FIG. Other configurations are the same as those in FIG.

  The ETC in-vehicle device 43 inserts an ETC card and performs processing related to automatic fee collection using information recorded on the ETC card. This ETC in-vehicle device 43 has a function of detecting whether or not an ETC card as a personal property is attached, and responds to whether or not an ETC card is attached in response to an inquiry from the in-vehicle device management unit 31. To do. The functional blocks of the in-vehicle device management unit 31 are configured in the same manner as in FIG. 5, and the personal property detection unit 34 makes an inquiry to the ETC in-vehicle device 43, whereby the ETC in-vehicle device 43 is inquired of It is detected whether or not is mounted.

  The misplaced state determination unit 24 is in a state where the power supply stop detection unit 11 detects that the power supply from the accessory power supply is in a stopped state, and the ETC on-board device 43 is mounted with an ETC card as a personal property. Is detected by the personal property detection unit 34, and it is detected by the registered position detection unit 12 that the current position of the vehicle matches a previously registered position, and it is detected that the driver is getting out of the vehicle. When detected by the unit 4, it is determined that the personal property is left behind after use of the vehicle, and a warning signal is output to the warning generation unit 5.

  As described above in detail, according to the present embodiment, the power supply from the accessory power supply is stopped, the personal property is mounted on the vehicle-mounted device, the vehicle current position matches the registered position, and the driver gets off the vehicle. Since a warning is generated when they are detected at the same time, a warning is issued only when the vehicle is returned to a pre-registered position and the power is turned off. be able to. Thereby, only when the use of the vehicle shared by a plurality of people is completed, a warning can be appropriately issued for misplacement of the personal property in the vehicle.

  In the above-described embodiment, the condition for generating a warning is that the driver is about to get off the vehicle, but this condition may be removed. However, it is preferable to consider this condition because it can be more reliably detected that the vehicle has been used.

  Moreover, although the said embodiment demonstrated the example which has the registration position detection part 12 and the registration position storage part 22 as a function structure of the present position detection part 2, the vehicle equipment management part 1 (or vehicle equipment management parts 21 and 31). ) May be provided as a functional configuration.

  In addition, each of the above-described embodiments is merely an example of the embodiment for carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. In other words, the present invention can be implemented in various forms without departing from the spirit or main features thereof.

  INDUSTRIAL APPLICABILITY The present invention is useful for an apparatus for preventing personal belongings from being left behind in a vehicle when a vehicle shared by a plurality of people is used.

It is a block diagram which shows the structural example of the misplacement prevention apparatus of the personal property by this embodiment. It is a block diagram which shows the function structural example of the vehicle equipment management part and present position detection part which are shown in FIG. It is a flowchart which shows the process sequence of the misplacement warning method of the personal property by the vehicle equipment management part shown in FIG. It is a block diagram which shows the other structural example of the misplacement prevention apparatus of the personal property by this embodiment. It is a block diagram which shows the function structural example of the vehicle equipment management part and present position detection part which are shown in FIG. It is a block diagram which shows the other structural example of the misplacement prevention apparatus of the personal property by this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 In-vehicle apparatus management part 2 Current position detection part 3 Portable apparatus interface part 4 Boarding / alighting detection part 5 Warning generation part 11 Power supply stop detection part 12 Registration position detection part 13 Personal property detection part 24 Misplaced state judgment part 33 Music media reproduction part 34 Personal property detection unit 43 ETC in-vehicle device

Claims (4)

Power supply stop detection means for detecting that the power supply from the accessory power supply is in a stopped state;
A personal property detection means for detecting that the personal property is mounted on the vehicle-mounted device;
Registered position detecting means for detecting that the current position of the vehicle matches a previously registered position;
The power supply stop detection means detects that the power supply from the accessory power supply is in a stopped state, and the personal property detection means detects that the personal property is attached to the in-vehicle device. And when it is detected by the registered position detecting means that the current position of the vehicle coincides with a previously registered position, it is determined that the personal property has been left behind after use of the vehicle. Judgment means,
An apparatus for preventing misplacement of personal property, comprising: warning generation means for generating a warning when the determination means determines that the personal property is misplaced. The vehicle further comprises a getting-off behavior detecting means for detecting a behavior that the driver is about to get off from the vehicle,
The determination means detects that the power supply from the accessory power supply is in a stopped state by the power supply stop detection means, and the personal property detection means has the personal property attached to the in-vehicle device. It is detected by the registered position detecting means that the current position of the vehicle matches a previously registered position, and the driver is about to get off the vehicle by the getting-off action detecting means. The personal property misplacement prevention device according to claim 1, wherein when an action is detected, the personal property misplacement prevention device determines that the personal property is misplaced after use of the vehicle. Whether the power supply from the accessory power supply is in a stopped state, whether the in-vehicle device is equipped with personal belongings, and whether the current position of the vehicle matches a pre-registered position A first step of determining;
The power supply from the accessory power supply is in a stopped state, the personal property is mounted on the in-vehicle device, and the current position of the vehicle matches the pre-registered position. And a second step of generating a warning when it is detected that the personal property has been misplaced after use of the vehicle. A third step for determining whether or not the driver is about to get off the vehicle is between the first step and the second step;
In the second step, the power supply from the accessory power source is in a stopped state, the in-vehicle device is in a state in which the personal property is mounted, and the current position of the vehicle is registered in advance. 4. The personal property misplacement warning method according to claim 3, wherein the warning is generated when an action that the driver is about to get off is detected from the vehicle.

Images