JP2006301909A - System for managing item left behind in vehicle, on-vehicle system, and terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for managing items left behind in a vehicle, an on-vehicle system, and a terminal device to detect all items left behind either in a visible or invisible place in a vehicle. <P>SOLUTION: When receiving a request command to search for items left behind in a vehicle from the terminal device (S1), the on-vehicle system connected for radio communication with the terminal device activates an ID reader (S2) to search for ID-tagged items present in the vehicle (S3), collates them with information stored in a memory part (ID tag information about items present in the vehicle in every single travel unit where the vehicle leaves and returns home) (S4), and sends the search result based on the collation to the terminal device (S6, S8). If there are any ID-tagged items added during the travel, only the items are extracted and information about the extracted items is sent as the search result (S6). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for managing forgotten items present in a vehicle, and more specifically, an article (for example, a product purchased through shopping) brought into the vehicle after the vehicle leaves the home and returns. The present invention relates to an in-vehicle lost article management system useful for managing whether or not the device is left in the vehicle, an in-vehicle device and a terminal device constituting the system.

  A typical in-vehicle navigation device includes a CPU that controls all processing related to navigation, a storage device such as a CD-ROM or DVD-ROM that stores map data, a display device such as an LCD monitor, and the current position of the vehicle. A GPS receiver for detecting the vehicle, a gyro, a vehicle speed sensor, and the like for detecting the traveling direction and traveling speed of the vehicle are provided. Then, the CPU reads out map data including the current position of the own vehicle from the storage device, draws a map image around the own vehicle position on the screen of the display device based on the map data, and determines the current position of the own vehicle. The vehicle position mark to be indicated is displayed superimposed on the screen, the map image is scrolled according to the movement of the vehicle, the map image is fixed on the screen, and the vehicle position mark is moved. You can see at a glance where the car is currently driving.

  In-vehicle navigation devices are usually equipped with a function (route guidance function) that guides a user so that the user can easily travel on the road without making a mistake. According to this route guidance function, the CPU calculates the optimal route from the departure point (typically the current position of the vehicle) to the destination using map data, such as a horizontal search method or a Dijkstra method. The route searched is stored as a guide route, and the route can be distinguished from other roads on the map image while traveling (for example, the color is changed or the line width is increased). When the vehicle approaches within a predetermined distance to the intersection whose course is to be changed on the guidance route, the map image includes an enlarged view of the intersection (an arrow indicating the direction of travel at the intersection, etc.) ) Or the like, the user can grasp the optimum route toward the destination.

  In addition, a vehicle equipped with such a navigation device is equipped with various audio devices so that passengers including the driver can enjoy it. In particular, a luxury large vehicle has a CD player and a seat for each seat. An expensive system (also referred to as a rear entertainment system) that can enjoy entertainment such as audio information output from a radio receiver or the like, video information output from a television, a DVD, or the like is mounted.

  For this reason, recently, a camera is installed in the passenger compartment as a means for preventing such expensive in-vehicle devices from being stolen, and the in-vehicle image captured by the camera is transmitted from a remote place using a wireless communication to a mobile phone or PDA. Technologies that can be confirmed by a terminal device such as (Personal Digital Assistants) are being put into practical use. According to this technology, in addition to theft prevention, it can also be used for managing articles present in the vehicle. For example, when you get on a vehicle and go home for shopping, if you notice something left behind after you get out of the car, you can check the presence of the item left by displaying the in-car image on the mobile phone screen. Is possible.

As a technique related to such a conventional technique, for example, as described in Patent Document 1, there is a technique capable of managing an article carried by a freely moving individual or an article in a predetermined space.
JP 2002-163301 A

  As described above, in the conventional technology, a camera is installed in a vehicle equipped with a navigation device or various audio devices, and the in-vehicle image captured by the camera is displayed on the screen of a mobile phone, etc. It was possible to use it to confirm things left behind in the car.

  However, since this method is based on the premise that the in-car image (image) captured by the camera is confirmed, the product (for example, seasoning) that should have been bought is not found after getting out of the car and returning home. When you notice something left behind, such as when you have left it in the car, you can check it with an image if it is visible from the camera in the car. (For example, when the seasoning rolls out of the shopping bag due to vibration during traveling and enters under the seat), the image cannot be confirmed.

  For this reason, it is not possible to confirm whether the product was actually bought (whether it has been forgotten to buy) or whether it has been left in a different place, and even though it was actually brought home ( There was a problem in that it went back to the car without being aware of it).

  The present invention was created in view of the problems in the prior art, and includes an in-vehicle lost matter management system, an in-vehicle device, and an in-vehicle device capable of grasping all lost items existing in the vehicle regardless of where the vehicle is visible or not visible. An object is to provide a terminal device.

  According to the present invention, with recent progress of ubiquitous socialization, identification information (ID: Identification) that can determine in advance what is the main item in the living environment (such as a product sold at a general retail store). It is assumed that the tag is pasted or embedded. An example of the ID tag is RFID (Radio Frequency ID), and information (ID information) given to the RFID tag can be read by a corresponding RFID reader (RFID reader). With the current technology, it is possible to read an ID tag existing within a range of about 1 to 2 m from the RFID reader, which is sufficient for application in a vehicle.

  In view of this, in order to solve the above-described problems of the prior art, according to the basic form of the present invention, an in-vehicle device equipped with a navigation function mounted on a vehicle and a terminal connected to the in-vehicle device so as to be capable of wireless communication An ID reading unit that can read the ID information in a non-contact manner with respect to the article with the ID tag, and one run of the vehicle from when the vehicle leaves home to return A memory unit that sequentially stores information about an article with an ID tag that is present in the vehicle for each unit; and a control unit operatively connected to the ID reading unit and the memory unit, wherein the control unit includes the terminal When receiving an instruction to search for forgotten things from the device, the ID reading unit is activated to search for all articles with ID tags in the vehicle, and all the searched articles and information stored in the memory unit are searched. Collating, the car left behind management system is provided, characterized by sending the search results based on the collating said terminal device.

  According to the in-car lost item management system according to the present invention, the ID information of the article is read (searched) by the ID reading unit if it exists in the car, regardless of where the car is visible or not visible. A search result based on the collation between all the ID information (articles) and the ID information (articles) stored in the memory unit is transmitted to the terminal device.

  Thereby, the terminal device side can grasp all forgotten items present in the vehicle from the search result, and can know what the article is from the ID information attached to the article. That is, it becomes possible to confirm all forgotten items present in the vehicle from a remote location (terminal device).

  In this case, if there is a difference between the two (all searched articles and information (articles) stored in the memory unit) based on the collation result, the search results are displayed during the current travel. Only the information related to the added article (ID) can be notified. On the other hand, when there is no difference between the two, the fact that there is no forgotten item during traveling this time can be notified as a search result. it can.

  Moreover, according to the modification of this invention, it is equipped with the vehicle-mounted apparatus provided with the navigation function mounted in the vehicle, and the terminal device connected to this vehicle-mounted apparatus so that radio | wireless communication was possible, The said vehicle-mounted apparatus is equipped with an ID tag. An ID reading unit that can read the ID information in a non-contact manner with respect to the article of the article, and an article with an ID tag that is present in the vehicle for each unit of traveling from when the vehicle leaves the home until it returns A memory unit that sequentially stores information, a map database that stores map information, a GPS receiver that detects the current position of the vehicle, and an operative connection to the ID reading unit, the memory unit, the map database, and the GPS receiver And when the control unit detects that the vehicle has returned from leaving the home, the ID reading unit is activated and the ID tag is present in the vehicle. All-in-one articles are searched, all the searched articles are collated with information stored in the memory unit, and a search result based on the collation is transmitted to the terminal device. Is provided.

  In the in-vehicle lost article management system according to the basic form described above, an article with an ID tag in the vehicle is searched using the “instruction of a lost article search request” from the terminal device as a trigger. The system searches for articles with ID tags in the vehicle using “detection that the vehicle has returned home” as a trigger. The subsequent processing is basically the same as that of the system according to the basic mode.

  According to another aspect of the present invention, an in-vehicle device having a navigation function mounted on a vehicle, an ID reading unit capable of reading the ID information in a non-contact manner with respect to an article with an ID tag; A memory unit that sequentially stores information on articles with ID tags present in the vehicle for each unit of travel from when the vehicle leaves the home until it returns, and is operable in the ID reading unit and the memory unit And when the control unit receives an instruction to search for forgotten things from the outside, the control unit activates the ID reading unit to search for all articles with ID tags present in the vehicle. A vehicle-mounted device is provided that collates all the retrieved articles with information stored in the memory unit and outputs a retrieval result based on the collation to the outside.

  Moreover, according to this modified form of the vehicle-mounted device, the vehicle-mounted device equipped with a navigation function mounted on the vehicle, an ID reading unit capable of reading the ID information in a non-contact manner with respect to an article with an ID tag, A memory unit that sequentially stores information about an article with an ID tag that is present in the vehicle for each unit of travel from when the vehicle leaves the home until it returns, a map database that stores map information, A GPS receiver that detects a current position of the vehicle, and a control unit that is operatively connected to the ID reading unit, the memory unit, the map database, and the GPS receiver. When it is detected that the vehicle has returned home, the ID reading unit is activated to search for all articles with ID tags present in the vehicle, and all the searched articles and the memory unit are stored. The in which information by matching, vehicle device is provided and outputs a search result based on the collating outside.

  Furthermore, according to another aspect of the present invention, the terminal device is connected to an in-vehicle device equipped with a navigation function mounted on a vehicle so as to be capable of wireless communication, and includes an operation unit for inputting a user instruction and a screen. A display unit, and an operation unit and a control unit operatively connected to the display unit, wherein the control unit searches the in-vehicle device for lost items in the vehicle based on a user instruction from the operation unit. A terminal device is provided, which transmits an instruction requesting to request and displays a search result transmitted from the in-vehicle device in response to the instruction on a screen of the display unit.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a block diagram schematically showing the configuration of an in-vehicle lost article management system according to an embodiment of the present invention.

  As shown in FIG. 1, the in-vehicle lost article management system 50 according to the present embodiment is configured by connecting an in-vehicle device 10 and a terminal device 30 to each other by wireless communication. In this embodiment, a case where a navigation device is used as the in-vehicle device 10 and a mobile phone is used as the terminal device 30 is taken as an example.

  First, in the in-vehicle device (navigation device) 10, reference numeral 11 denotes map data divided into longitude and latitude widths of appropriate sizes according to each scale level (1/12500, 1/25000, 1 / 50,000, etc.). The stored map database is shown, and for example, an HDD is used as the storage medium. The map data includes road data for display, road data for route search, data on various facilities (convenience stores, gas stations, family restaurants, etc.), and each data is expressed in longitude and latitude. It is represented by a coordinate set of points (nodes).

  Reference numeral 12 denotes an operation unit for inputting information instructed by the user, and has, for example, a form of a remote control transmitter. Although not specifically illustrated, the remote control transmitter is appropriately provided with various operation buttons and a joystick for selecting various menus and various items on the screen of the display unit, which will be described later, and executing the selected menus. It has been. Reference numeral 13 denotes a GPS receiver that detects the longitude and latitude of the current position of the vehicle based on GPS signals sent from GPS satellites, and 14 denotes a vehicle sensor that detects the vehicle running state. It consists of an angle sensor such as a gyro for detecting the traveling direction, a vehicle speed sensor that generates a pulse for every fixed travel distance, and the like. 15 stores data related to all nodes (coordinates of points expressed in longitude and latitude) from the starting point (typically the vehicle position) of the guidance route searched by the control unit described later to the destination. A guide route storage unit is shown.

  Reference numeral 16 denotes a control unit constituted by a microcomputer or the like. Basically, the current position of the host vehicle is detected based on a signal output from the GPS receiver 13 or a signal output from the vehicle sensor 14 is used. Based on the search conditions set using the map data read from the map database 11 or searching for a guidance route from the departure point (own vehicle position) to the destination, etc. Various processes related to navigation are executed. Further, as a process related to the present invention, the control unit 16 has a function of controlling a process related to a search for forgotten items in the vehicle and a notification of the search result in cooperation with the terminal device 30 side as will be described later.

  Reference numeral 17 indicates navigation information (map around the current position of the vehicle, a guide route from the departure point to the destination, a mark indicating the current position of the vehicle, etc.) on the screen based on the control from the control unit 16. Reference numeral 18 denotes a display unit including an LCD monitor or the like for displaying on the speaker, and a speaker for outputting guidance information related to the navigation based on the control from the control unit 16. Reference numeral 19 denotes a communication unit such as a mobile phone or an in-vehicle phone for wirelessly communicating with the outside (in this case, the terminal device 30) via an antenna based on the control from the control unit 16.

  Reference numeral 20 denotes an ID reader (ID reading device) for reading the information of the ID tag 1a attached to the product 1 existing in the vehicle in a non-contact manner, and reads the ID tag existing in a range of about 1 to 2 m. Is possible. Therefore, all the products with ID tags brought into the vehicle can be searched by the ID reader 20. When activated by the control unit 16, the ID reader 20 radiates radio waves within a range of 1 to 2 m, and an ID tag 1a (coil or antenna) attached to the product 1 existing within the range is radiated. It is possible to determine what the product 1 is by returning a radio wave in response to the radio wave and detecting the returned radio wave (ID tag information). Reference numeral 21 denotes an ID tag information storage unit for storing ID tag information of the product 1 with ID tag present in the vehicle. As will be described later, this device (navigation) is based on control from the control unit 16. Device) ID tag information is sequentially stored for each unit of travel from the time when the vehicle equipped with the device 10 leaves the home until it returns.

  In addition, as will be described later, if necessary, as a means for judging whether the vehicle has left the home or returned home, at least in a suitable place in the vehicle so that the driver can be shown. An in-vehicle camera 22 (indicated by a broken line in the figure) may be installed, or a door opening / closing signal and an engine start / stop signal may be appropriately used.

  On the other hand, the terminal device (mobile phone) 30 includes a control unit 31, a communication unit 32 for wirelessly communicating with the outside (in this case, the in-vehicle device 10) via an antenna based on the control from the control unit 31, and an operation unit. 33, a display unit 34, and a speaker 35 are provided. The control unit 31 is similarly configured by a microcomputer or the like, and as processing related to the present invention, as described later, cooperates with the in-vehicle device (navigation device) 10 side to search for in-vehicle lost items and notify in response thereto And a function for controlling processing related to display of the search results.

  Further, the operation unit 33 is appropriately provided with various operation buttons for selecting various menus and items on the screen of the display unit 34 and for executing the selected menus, and the like. As will be described later, an operation button is provided for inputting an instruction to request a search for forgotten items in the vehicle. Further, the display unit 34 is composed of an LCD or the like, and various information is displayed on the screen of the display unit 34 based on the control from the control unit 31. Information indicating the search result is displayed. In addition, various information is output from the speaker 35 based on the control from the control unit 31, and the search result of the forgotten in-vehicle is output as sound as related to the present invention as will be described later.

  In the in-vehicle lost article management system 50 according to the present embodiment, as will be described later, ID tag information stored in the ID tag information storage unit 21 (that is, an item with an ID tag that has been brought into the vehicle but misplaced: lost article). Is managed for each unit of one run from when the vehicle leaves the home until it returns. Therefore, for example, for an article with an ID tag already present in the vehicle that has already been searched by the ID reader 20 during the previous driving period at the time of getting in the car for shopping or the like, Even if the search is performed by 20, the search result notification is excluded. That is, among all the products with ID tags searched by the ID reader 20, only the products added during the current travel period (from leaving the car to returning home) are displayed as “search results”. As shown in FIG.

  Hereinafter, in the in-vehicle lost item management system 50 (FIG. 1) according to the present embodiment, the in-vehicle device (navigation device) 10 and the terminal device (mobile phone) 30 cooperate to search for in-vehicle lost items and to notify the search results. The processing will be described with reference to FIG. 3 and FIG. 4 showing examples of screen display for supplementary explanation of this processing flow together with FIG. 2 showing an example of the processing flow.

  First, as a precondition, it is assumed that the ID tag information storage unit 21 stores ID information of some products already in the vehicle that have already been searched by the ID reader 20 during the period of travel up to the previous time. . In this case, it is assumed that the user gets on a car, goes shopping, purchases some ID-tagged products (takes them into the car), returns home, and gets out of the car.

  Under such circumstances, in the first step S1 (terminal device 30 side), the control unit 31 based on a user instruction from the operation unit 33 causes the in-vehicle device 10 side to be left behind in the vehicle via the communication unit 32. Send a command to request a search for.

  In the next step S2 (on the in-vehicle device 10 side), the control unit 16 receives a command of “forgotten thing search request” transmitted from the terminal device 30 via the communication unit 19, and responds to this command with an ID reader. 20 is activated.

  In the next step S3 (on-vehicle device 10 side), the ID reader 20 activated by the control unit 16 searches for all products with ID tags present in the vehicle (that is, reads ID information of all products). As mentioned in the preconditions, the retrieved products include products that have already been retrieved by the ID reader 20 during the period of travel up to the previous time.

  In the next step S4 (on the vehicle-mounted device 10 side), the control unit 16 searches for all products with ID tags (ID information) present in the vehicle searched by the ID reader 20, and the memory unit (ID tag information storage unit 21). The ID information stored in is compared and collated.

  In the next step S5 (on the vehicle-mounted device 10 side), in the current running period, the control unit 16 out of all the products with ID tags searched by the ID reader 20 based on the collation result in the previous step. It is determined whether there is a product with an ID tag added to (YES) or not (NO). If the determination result is yes, the process proceeds to step S6, and if the determination result is no, the process proceeds to step S8.

  In step S6 (on-vehicle device 10 side), the control unit 16 extracts only the newly added product (ID information) from the all products (ID information) with ID tags searched by the ID reader 20 at this time. Then, the information related to the extracted product (a product name or a photograph of the product acquired via the Internet in some cases) is transmitted to the terminal device 30 via the communication unit 19. That is, a “search result” in response to a “forgotten thing search request” from the terminal device 30 is notified.

  In the next step S7 (on-vehicle device 10 side), since new ID tag information is added during the current travel period, the memory unit (ID tag information storage unit 21) is controlled based on the control from the control unit 16. The ID tag information of the added product is stored. Then, the processing flow on the in-vehicle device 10 side is “end”.

  On the other hand, in step S8 (on-vehicle device 10 side), since there is no product with an ID tag added during the current traveling period, there is no information indicating that (for example, “There is no thing left to go out this time.” Is transmitted to the terminal device 30 via the communication unit 19 based on the control from the control unit 16. That is, as in the case of step S6, the “search result” is notified. Then, the processing flow on the in-vehicle device 10 side is “end”.

  In the last step S9 (on the terminal device 30 side), the control unit 31 receives information indicating the “search result” transmitted from the in-vehicle device 10 via the communication unit 32, and displays the search result on the display unit 34. On the screen. In this case, there are two types of display modes.

  One display mode is a search result (when there is a product with an ID tag added this time) based on the process of step S6. For example, as shown in the screen display example of FIG. 3, information 41 (part surrounded by a broken line) indicating the search result is displayed on the screen 40 of the display unit 34 of the mobile phone 30. In the example shown in the figure, the message “There is something left in the car. 1. Seasoning (cucumber), 2. Tissue paper” is displayed.

  The other display mode is a search result based on the process of step S8 (when there is no product with an ID tag added this time). For example, as shown in the screen display example of FIG. 4, information 42 (part surrounded by a broken line) indicating the search result is displayed on the screen 40 of the display unit 34 of the mobile phone 30. In the example shown in the drawing, a message “There are no items left for going out this time” is displayed.

  Instead of displaying the “forgotten thing search result” on the screen 40 of the display unit 34, a sound may be output from the speaker 35 based on the control from the control unit 31.

  In this way, after the “forgotten thing search result” is displayed on the screen 40 or the voice is output from the speaker 35, the processing flow on the terminal device (mobile phone) 30 side is “finished”.

  As described above, according to the in-vehicle lost article management system 50 according to the present embodiment, on the in-vehicle device 10 side, regardless of where the vehicle is visible or not visible, the product with the ID tag is present in the vehicle. 1 ID information is read (searched) by the ID reader 20, and based on comparison verification of all the searched ID information (product) and the ID information (product) stored in the ID tag information storage unit 21. The search result is notified to the terminal device 30.

  Thereby, on the terminal device 30 side, it is possible to grasp all forgotten items present in the vehicle from the notified search result, and what is the product from the ID information attached to the product (forgotten item). (See FIG. 3). That is, all forgotten items present in the vehicle can be confirmed from the outside (remote location) of the vehicle.

  In this case, if there is a difference between the searched all ID information and the ID information stored in the ID tag information storage unit 21 based on the collation result on the in-vehicle device 10 side, It is possible to notify only the information related to the product added during the period (step S6). On the other hand, there is no difference between the searched all ID information and the ID information stored in the ID tag information storage unit 21. If this is the case, it is possible to notify information indicating that this has been done (that there was no forgotten item during the current run) (step S8).

  In the above-described embodiment, as illustrated in the processing flow of FIG. 2, the ID reader 20 of the in-vehicle device 10 is activated with a “forgotten thing search request” from the terminal device 30 as a trigger, and all ID tags with ID tags present in the vehicle are included. Although the case where the product 1 is searched and the result is notified to the terminal device 30 side has been described as an example, as is apparent from the gist of the present invention, it becomes a trigger for starting the search and notifying the result. Of course, the condition is not limited to this.

  For example, on the in-vehicle device 10 side, it is detected that the vehicle has left the home, further detected that the vehicle has returned after leaving the home, and triggered by the “detection of having returned”, You may make it search for all the goods with ID tag which exist in.

  In this case, for example, whether the vehicle has left the house or returned to the home is determined based on the map information obtained from the map database 11 and the vehicle position information obtained from the output signal of the GPS receiver 13. Based on an in-vehicle image captured by a camera (in-vehicle camera 22 shown by a broken line in FIG. 1) installed at an appropriate location in the vehicle, a door opening / closing signal or an engine start / stop signal, or a combination of both signals, It can be carried out. That is, the control unit 16 refers to the map information to detect that the own vehicle position is at the home position, detects a door open / close signal or an engine start signal, and displays the in-vehicle image captured by the in-vehicle camera 22. When it is detected that the driver is reflected, it can be determined that the driver has left home. Similarly, referring to the map information, it is detected that the position of the vehicle is at home, and further, an engine stop signal or a door open / close signal is detected, and the driver is shown in the vehicle image captured by the vehicle camera 22. When it is detected that it is not, it can be determined that the user has returned home. Then, using this “detection of returning” as a trigger, the ID reader 20 is activated based on control from the control unit 16 to search for all products with ID tags present in the vehicle (step S3). The rest is basically the same as the processing performed after step S4.

  In the above-described embodiment, the case has been described in which the terminal device 30 included in the in-car belonging management system 50 is a mobile phone (FIGS. 3 and 4). However, instead of this mobile phone, the terminal device 30 is connected to a wireless LAN. Of course, a communication device having a function or a terminal device such as a PDA may be used.

It is a block diagram showing roughly the composition of the in-vehicle thing management system concerning one embodiment of the present invention. It is a flowchart which shows an example of the process which concerns on the search of the in-vehicle thing and notification of the search result which a vehicle-mounted apparatus (navigation apparatus) and a terminal device (mobile phone) cooperate in the system of FIG. It is a figure which shows the example of a screen display concerning the display of a search result (the 1). It is a figure which shows the example of a screen display concerning the display of a search result (the 2).

Explanation of symbols

1 ... Product (article) with ID tag,
1a ... ID tag,
10. Navigation device (on-vehicle device),
11 ... Map database,
12, 33 ... operation unit,
13 ... GPS receiver,
16, 31 ... control unit,
17, 34 ... display section,
18, 35 ... speaker,
19, 32 ... communication part,
20 ... ID reader (ID reader),
21 ... ID tag information storage unit (memory unit),
22: In-car camera (imaging means),
30 ... mobile phone (terminal device),
40 ... display screen,
41, 42 ... Information indicating search results,
50 ... A system for managing things left behind in the car.

Claims (12)

An in-vehicle device equipped with a navigation function mounted on a vehicle, and a terminal device connected to the in-vehicle device so as to be capable of wireless communication;
The in-vehicle device is in an in-vehicle unit for each unit of travel from an ID reading unit that can read the ID information to an article with an ID tag in a non-contact manner and from when the vehicle leaves the home and returns. A memory unit that sequentially stores information on an existing article with an ID tag, and a control unit operatively connected to the ID reading unit and the memory unit,
The control unit activates the ID reading unit to retrieve all articles with ID tags present in the vehicle when receiving an instruction to search for a forgotten item from the terminal device, and retrieves all the retrieved articles and the memory. Information stored in the unit is collated, and a search result based on the collation is transmitted to the terminal device. An in-vehicle device equipped with a navigation function mounted on a vehicle, and a terminal device connected to the in-vehicle device so as to be capable of wireless communication;
The in-vehicle device is in an in-vehicle unit for each unit of travel from an ID reading unit that can read the ID information to an article with an ID tag in a non-contact manner and from when the vehicle leaves the home and returns. A memory unit that sequentially stores information related to an article with an ID tag; a map database that stores map information; a GPS receiver that detects a current position of the vehicle; the ID reading unit; a memory unit; a map database; A control unit operably connected to the GPS receiver;
When the control unit detects that the vehicle has returned from leaving home, it activates the ID reading unit to search for all items with ID tags present in the vehicle, And the information stored in the memory unit, and a search result based on the comparison is transmitted to the terminal device.   The control unit, when there is an article with an ID tag added during the current travel, based on the comparison between all the retrieved articles and the information stored in the memory unit, only the article The in-vehicle left-behind item management system according to claim 1, wherein information on the extracted article is transmitted to the terminal device as a search result.   4. The terminal device according to claim 1, further comprising: an operation unit that inputs an instruction for the forgotten item search request; and a display unit that displays the search result transmitted from the in-vehicle device on a screen. The in-vehicle lost-item management system according to any one of the items.   The in-vehicle left behind management system according to claim 4, wherein the terminal device further includes a speaker that outputs the search result transmitted from the in-vehicle device as a voice. An in-vehicle device having a navigation function mounted on a vehicle,
An ID reading unit that can read the ID information in a non-contact manner with respect to an article with an ID tag, and an ID tag that is present in the vehicle for each unit of travel from when the vehicle leaves the home until it returns A memory unit for sequentially storing information on the articles of
A control unit operably connected to the ID reading unit and the memory unit;
When the control unit receives an instruction to search for a forgotten item from outside, the control unit activates the ID reading unit to search for all articles with ID tags present in the vehicle, and stores all the searched articles and the memory unit. A vehicle-mounted device that collates stored information and outputs a search result based on the collation to the outside. An in-vehicle device having a navigation function mounted on a vehicle,
An ID reading unit that can read the ID information in a non-contact manner with respect to an article with an ID tag, and an ID tag that is present in the vehicle for each unit of travel from when the vehicle leaves the home until it returns A memory unit for sequentially storing information on the articles of
A map database storing map information;
A GPS receiver that detects the current position of the vehicle;
A control unit operably connected to the ID reading unit, the memory unit, the map database, and the GPS receiver;
When the control unit detects that the vehicle has returned from leaving home, it activates the ID reading unit to search for all items with ID tags present in the vehicle, And the information stored in the memory unit, and a search result based on the collation is output to the outside.   The control unit, when there is an article with an ID tag added during the current travel, based on the comparison between all the retrieved articles and the information stored in the memory unit, only the article The vehicle-mounted device according to claim 6 or 7, wherein information on the extracted article is output to the outside as a search result. It further has an imaging means for imaging the inside of the vehicle,
The control unit refers to the map information to detect that the current position of the host vehicle is at a home position, and further detects an engine stop signal or a door opening / closing signal, and the interior of the vehicle imaged by the imaging unit The in-vehicle device according to claim 7, wherein when it is detected that the driver is not shown in the video, the vehicle is determined to have returned home.   The in-vehicle device according to any one of claims 6 to 9, wherein the on-vehicle device is connected to an external terminal device so as to be capable of wireless communication. A terminal device connected to an in-vehicle device equipped with a navigation function mounted on a vehicle so as to be capable of wireless communication,
An operation unit for inputting user instructions;
A display unit with a screen;
A control unit operably connected to the operation unit and the display unit,
The control unit transmits an instruction to the vehicle-mounted device to request a search for forgotten items in the vehicle based on a user instruction from the operation unit, and a search result transmitted from the vehicle-mounted device in response to the instruction Is displayed on the screen of the display unit.   The terminal device according to claim 11, further comprising a speaker that outputs the search result by voice.

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