JP2011043940A - Theft prevention device, navigation device with theft prevention function, and theft prevention system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain information for specifying a thief individual when a theft action is foreseen and when the theft action is really performed. <P>SOLUTION: Recently, possibility that a thief himself possesses an identifying mobile device for transmitting an individual identifying number is high, and possibility that the individual identifying number becomes to be an important clue for specifying the thief individual is large. A suspicious identification number acquiring unit 22 of a theft countermeasure unit 8 sequentially records the individual identifying number when the identifying mobile device existing at a periphery of the theft countermeasure unit 8 is detected. Since individual identifying numbers acquired at the periphery until then have been recorded into a storage medium 13c, then these can be acquired as information for specifying the thief individual, when an abnormal state in which the theft action is assumed as being performed is detected by a physical state detecting unit 21 and an ID residence time managing unit 23. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an anti-theft device, a navigation device with an anti-theft function, and an anti-theft system for identifying the theft of various items such as devices and vehicles.

  In recent years, it has become a big issue how to take technical measures against theft of vehicles and theft of navigation devices mounted on vehicles. There have already been proposed a number of techniques for preventing the theft itself and techniques for tracking the theft when the theft is performed.

  For example, Patent Document 1 proposes a security system using a so-called immobilizer function. In this prior art, the access key transmitted by the portable device possessed by the user is collated with the access key stored in the navigation device, and the security lock is released only when the collation matches.

  Patent Document 2 proposes a system that makes it easy to track a stolen vehicle by transmitting current position information obtained by a GPS receiver to a monitoring center via a wireless telephone or the like. .

JP 2009-64180 A Japanese Patent Laid-Open No. 8-239011

  However, although the above-mentioned conventional technology is effective as a preventive measure or a deterrent measure against the theft, the information that can be used to identify and track individual theft after the theft has been completed. Can't get. As described above, the conventional anti-theft technology has no function of acquiring information for identifying an individual of the theft when the theft is foreseen or when the theft is actually performed.

  The problem to be solved by the present invention includes the above-described problem as an example.

  In order to solve the above-mentioned problem, the invention described in claim 1 includes identification information acquisition means for acquiring individual identification information of an identification portable device existing in the vicinity via wireless communication or wired communication, and the identification information acquisition means. Based on the first identification information storage means for storing the individual identification information acquired by the first identification information storage means and the individual identification information stored by the first identification information storage means, an abnormal state that can be regarded as a theft is detected. And a first abnormality processing means for performing a corresponding abnormality handling process when the abnormal state is detected by the first theft detection means.

  In order to solve the above-mentioned problem, the invention according to claim 8 is directed to route search means for searching for a route from a current location to a destination, and to guide the vehicle according to the route searched by the route search means. Guidance means for outputting guidance guidance, identification information acquisition means for obtaining individual identification information of identification portable devices existing in the vicinity via wireless communication or wired communication, and the individual identification information acquired by the identification information acquisition means First identification information storage means for storing, and first theft detection means for detecting an abnormal state that can be regarded as a theft being performed based on the individual identification information stored by the first identification information storage means, And a first abnormality processing unit that performs a corresponding predetermined abnormality handling process when the abnormal state is detected by the first theft detection unit.

  In order to solve the above problem, the invention according to claim 9 includes a terminal device provided in an article to be protected against theft, and a server that monitors the theft of the article in cooperation with the terminal device. In the anti-theft system, the terminal device includes, through wireless communication or wired communication, identification information acquisition means for acquiring individual identification information of an identification portable device existing in the surroundings, and the individual acquired by the identification information acquisition means Identification information transmitting means for transmitting identification information to the server, the server receiving identification information receiving means for receiving the individual identification information sent from the identification information transmitting means of the terminal device, Based on the second identification information storage means for storing the individual identification information received by the identification information receiving means and the individual identification information stored by the second identification information storage means, A second theft detection means for detecting an abnormal state that can be regarded as an action being performed, and a second abnormality process for performing a corresponding predetermined abnormality response process when the abnormal state is detected by the second theft detection means Means.

It is a system configuration figure showing the example of composition of the antitheft system in the embodiment of the present invention. It is a block diagram which shows the software structural example of the antitheft program which operate | moves in the antitheft unit shown in FIG. It is a figure which shows the structural example of a suspicious identification number detection log. It is a flowchart which shows the example of a procedure of a single monitoring process. It is a flowchart which shows the detailed example of a procedure of ID stay time management processing of step S100 shown in FIG. The suspicious identification number detection log shown in FIG. 3 is further recorded to show a recording state when an abnormal state is detected. It is a flowchart which shows the example of a procedure of the unit side monitoring process which CPU of a theft countermeasure unit performs in the modification which performs cooperation monitoring. It is a flowchart which shows the example of a procedure of the unit side monitoring process which a server performs in the modification which performs cooperation monitoring.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a system configuration diagram illustrating a configuration example of the antitheft system according to the present embodiment.

  The anti-theft system S includes a navigation device 100 mounted on a vehicle and a server 200 that is fixedly installed outside the vehicle.

  The navigation device 100 is connected to the outside antenna 1, the communication unit 2, the navigation main unit 3, the speaker 4, the information collection device 5, the power supply unit 6, and these units via the interface 7 so that information and power can be transmitted and received. The anti-theft unit 8 is provided.

  The communication unit 2 corresponds to identification information transmission means, and has a function of controlling transmission / reception of information to / from the server 200 by wireless communication via the vehicle exterior antenna 1.

  The navigation main unit 3 performs positioning of the current location of the vehicle using a GPS sensor (not shown) provided therein, and navigation for performing a predetermined route search and route guidance based on map information stored in advance. It has the main functions of the device 100. Note that a specific illustration of the software component that performs the route search (corresponding to the route searching unit) and the software component that performs the route guidance (corresponding to the guiding unit) is omitted.

  The speaker 4 has a function of outputting sound to the inside and outside of the vehicle. The information collecting device 5 corresponds to detailed information collecting means, and includes a camera 5a and a microphone 5b. The camera 5a has a function of taking images of the inside and outside of the vehicle, and the microphone 5b has a function of inputting sound around the inside and outside of the vehicle.

  The power supply unit 6 has a function of supplying power to the navigation device 100 and also supplying power to the antitheft unit 8 via the interface 7.

  The antitheft unit 8 includes a CPU 11, a physical state detection sensor 12, a storage unit 13, an individual identification number detection unit 14, and a short-range antenna 15.

  The CPU 11 has a function of controlling the entire antitheft unit 8 by performing various calculations by the operation of a predetermined program, and exchanging information with other units and outputting various control instructions.

  The physical state detection sensor 12 includes a tilt sensor 12a, a vibration sensor 12b, a voltage change sensor 12c, and a heat detection sensor 12d. The tilt sensor 12a has a function of detecting the tilt angle with respect to the direction of gravity to detect the attitude of the entire navigation device 100 including the anti-theft unit 8, and the vibration sensor 12b is a function of detecting vibration applied to the entire navigation device 100. The voltage change sensor 12c has a function of detecting a change in supplied power, and the heat detection sensor 12d has a function of detecting heat applied to the navigation device 100. In addition, for example, an ultrasonic sensor or a sound sensor (not shown) is provided. The ultrasonic sensor has a function of detecting intrusion into the vehicle by a change in the propagation state of the generated sound wave. And the function of detecting the destruction of a specific object by detecting a sound in a specific frequency range from the collected sound. And each said sensors 12a-12d etc. can detect the change of a physical state.

  The storage unit 13 includes a ROM 13a, a RAM 13b, and a storage medium 13c. The ROM 13a is an information storage medium in which various processing programs to be described later and other necessary information are written in advance. The RAM 13b is an information storage medium on which information necessary for executing the various programs is written and read. The storage medium 13c is an information storage medium such as a flash memory or a hard disk. This storage medium 13c corresponds to first identification information storage means, and stores in a non-volatile manner a solid identification number (to be described later) and the date and time of acquisition, or image information and audio information acquired by the camera 5a and microphone 5b of the information collecting device 5 described above. It has a function to memorize.

  The individual identification number detection unit 14 has a function of detecting an individual identification number (corresponding to individual identification information) of a portable device or the like existing in the space around the anti-theft unit 8 by wireless communication via the short-range antenna 15.

  Here, in recent years, the population possessing personal portable devices such as cellular phones and portable music players has been increasing year by year. In particular, portable devices that comply with standards such as Bluetooth (registered trademark) and that spontaneously transmit an individual identification number (ID) that can identify the device are widely used. In addition, many other standards such as TransferJet, FeliCa, WiFi, WiMax, LTE and the like that return an individual identification number in response to a predetermined request signal are widely used. Especially, Suica (registered trademark) used as an RFID is used. Non-contact IC cards have a very large population.

  Hereinafter, the portable device and the non-contact IC card that transmit such an individual identification number are referred to as “identification portable device”. Then, the individual identification number detection unit 14 detects an identification portable device existing in the vicinity in accordance with any of the above standards, and detects the individual identification number.

  Although not particularly illustrated, the server 200 includes a CPU, a storage unit, and a communication unit similar to the CPU 11, the storage unit 13, and the communication unit 2. The server 200 receives information such as the individual identification number transmitted from the navigation device 100 via wireless communication by the communication unit, and the storage unit stores the information and performs appropriate processing.

  FIG. 2 is a block diagram showing a software configuration example of the anti-theft program operating in the anti-theft unit 8 shown in FIG.

  The anti-theft program includes, as its functions, a physical state detection unit 21, a suspicious identification number acquisition unit 22, an ID stay time management unit 23, an anomaly response processing unit 24, and a control unit 25. Demonstrate in unit 8.

  The suspicious identification number acquisition unit 22 corresponds to identification information acquisition means, and detects the individual identification number of the identification portable device existing around the navigation device 100 via wireless communication complying with any of the above-mentioned standards. Only the unregistered suspicious identification number (corresponding to suspicious identification information) is acquired and recorded in the identification data RD as the suspicious identification number detection log together with the acquisition time.

  The identification data RD is a part of the data content recorded in the storage medium 13c of the storage unit 13 by the anti-theft program, and includes a suspicious identification number detection log and a registered identification number table. The registered identification number table is a table in which a plurality of individual identification numbers are registered in advance by a legitimate user of the navigation device 100, although not particularly illustrated. In this registered identification number table, individual identification numbers of identification portable devices possessed by persons who may legitimately approach the vehicle such as the user himself / herself and their family members or friends are registered. The said suspicious identification number acquisition part 22 acquires what is not registered into the registered identification number table among the acquired individual identification numbers as a suspicious identification number.

  The ID stay time management unit 23 corresponds to the first theft detection means, and refers to the recorded contents of the suspicious identification number detection log recorded in the identification data RD, so that the same suspicious identification number continues for a predetermined time or more. It detects the occurrence of an abnormal condition that can be regarded as theft being performed.

  The abnormality handling processing unit 24 corresponds to a first abnormality processing unit, and is stored in the storage medium 13c (for example, stored in the storage medium 13c) when an abnormal state that can be regarded as theft being performed is detected by the ID stay time management unit 23. Perform the corresponding process (using the suspicious identification number).

  The detailed data SD is a part of data contents recorded in the storage medium 13c of the storage unit 13 by the anti-theft program, and when an abnormal state is detected as one of the response processes by the abnormality response processing unit 24. Image information and audio information acquired using the camera 5a and the microphone 5b provided in the navigation device 100 are recorded in association with the suspicious identification number.

  The control unit 25 sends / receives various information and outputs instruction commands to / from each of the physical state detection unit 21, the suspicious identification number acquisition unit 22, the ID stay time management unit 23, and the abnormality handling processing unit 24 described above. Controls the entire anti-theft program.

  The physical state detection unit 21 detects a change in physical state detected by the physical state detection sensor 12.

  FIG. 3 is a diagram illustrating a configuration example of a suspicious identification number detection log. In the illustrated example, the suspicious identification number has already been acquired four times, but an abnormal state has not yet been detected.

  In the suspicious identification number detection log of the example shown in FIG. 3, an item “m” of a record number set by a serial number in chronological order corresponding to the opportunity to acquire the suspicious identification number is provided. The record number m, the recording time t (m) represented by the date and time, and the suspicious identification number (multiple records are possible) acquired by the suspicious identification number acquisition unit are combined into one. Recorded as record R (m). In the suspicious identification number detection log of this example, the minimum unit of the recording time t (m) is set to 1 minute. That is, when the identification number acquisition unit 22 repeatedly acquires the same suspicious identification number, the same record R (m) in 1 minute increments is recorded in the identification number detection log.

  FIG. 4 is a flowchart illustrating an example of the procedure of the single monitoring process. This single monitoring process includes a procedure realized by the antitheft program operating under the control of the CPU 11. This flow starts to be executed when the navigation device 100 is installed in the vehicle, and thereafter continuously executed regardless of whether the main power supply in the navigation device 100 is turned on or off.

  In FIG. 4, in step S <b> 10, the individual identification number detection unit 14 is activated by the processing of the suspicious identification number acquisition unit 22, and it is detected whether or not there is an identification portable device around the navigation device 100 at that time.

  Thereafter, in step S20, it is determined whether or not an identification portable device has been detected in the vicinity by the detection procedure in step S10. If the identification portable device is not detected in the surrounding area, the determination is not satisfied, and the routine goes to Step S25.

  In step S25, it is determined whether or not an appropriate end operation has been performed in an input operation unit (not shown). If the end operation has not been performed, the determination is not satisfied and the routine returns to step S10 and the same procedure is repeated. On the other hand, when the end operation is performed, the determination is satisfied, and this flow is ended.

  On the other hand, in the determination in step S20, if an identification portable device is detected in the vicinity, the determination is satisfied, and the process proceeds to step S30.

  In step S30, the individual identification number detection unit 14 detects the individual identification number from surrounding identification portable devices, and the individual identification number matches any registered identification number registered in advance in the identification data RD. If not, obtain as suspicious identification number. When the presence of a plurality of identification portable devices is detected, for example, an individual identification number (suspicious identification number) corresponding to one of them is acquired.

  Thereafter, the process proceeds to step S35, the current date (year / month / day) and time (hour / minute) are acquired as the recording time, and the process proceeds to step S100.

  In step S100, the ID stay time management unit 23 executes an ID stay time management process (see FIG. 5 described later). That is, it records in the suspicious identification number detection log of identification data RD using only one suspicious identification number acquired by the procedure of said step S30, and the recording time acquired by the procedure of said step S35. Further, it is detected by referring to them how long the single suspicious identification number is acquired.

  Thereafter, the process proceeds to step S40, and whether or not the value of the continuous stay counter C (see FIG. 5 described later) output in the ID stay time management process in step S100 is equal to or greater than a predetermined value (5 in this example). judge. When the value of the continuous stay counter C is less than 5, the determination in step S40 is not satisfied, that is, it is not considered that the theft has been performed yet, and the process proceeds to step S25.

  On the other hand, when the value of the continuous stay counter C is 5 or more, that is, when the same suspicious identification number is continuously acquired for 5 minutes or more, the determination is satisfied. That is, it is considered that the theft has been performed on the navigation device 100 including the anti-theft unit 8, and the process proceeds to step S200.

  In step S200, unit side abnormality handling processing is executed by the processing of the abnormality handling processing unit 24. That is, for example, by outputting sound from the speaker 4 or displaying on a display unit (not shown), a warning for stopping the theft is given to the theft. Alternatively, for example, the suspicious identification number is detected at that time via the individual identification number detection unit 14, and the image and audio information of the theft is collected by the information collecting device 5 of the camera 5 a and the microphone 5 b, and the suspicious identification is performed. The detailed data SD of the storage medium 13c is stored in association with the number. Further, for example, the theft may be notified to the server 200 via the communication unit 2. In this case, the suspicious identification number detection log recorded so far and the image information / audio information of the theft associated with the suspicious identification number are also transmitted and recorded. When step S200 is completed in this way, the process proceeds to step S25.

  FIG. 5 is a flowchart showing a detailed procedure example of the ID stay time management process in step S100 shown in FIG. A variable n shown in the figure is a variable indicating a record number at that time in the suspicious identification number detection log shown in FIG. The variable n is continuously maintained regardless of whether the main power supply in the navigation device 100 is turned on or off after initialization (n = 1) when the navigation device 100 is installed in the vehicle. .

  In FIG. 5, first, the value of the continuous stay counter C is initialized to 1 in step S105.

  Next, the process proceeds to step S110, and the content of R (n), which is the last record at that time, is read in the suspicious identification number detection log.

  Next, the process proceeds to step S115, and it is determined whether the recording time t (n) in the content of the last record R (n) read in step S110 does not coincide with the current time at that time. If the recording time t (n) coincides with the current time at that time, the determination is not satisfied, that is, one minute as the minimum unit of recording time has elapsed from the recording time t (n) of the last record R (n). It is considered that there is not, and the process proceeds to step S120. In step S120, the suspicious identification number (abbreviated as ID in the figure) of the content acquired this time is recorded in the same final record R (n). If the suspicious identification number of the content acquired this time has already been recorded, it is recorded as one record as it is, and if it has not been recorded yet, it is recorded additionally. Then, this flow ends.

  On the other hand, if it is determined in step S115 that the recording time t (n) does not coincide with the current time at that time, the determination is satisfied. That is, it is assumed that one minute of the minimum recording time has elapsed from the recording time t (n) of the last record R (n) so far, and a new record should be created, and the process proceeds to step S125.

  In step S125, the value of the previous record number n is incremented by 1, and updated as the latest record number n.

  Thereafter, the process proceeds to step S130, in which the record R (n) corresponding to the new record number n is additionally created in the suspicious identification number detection log, and the current date and time acquired this time are recorded therein as the recording time t (n). The suspicious identification number (only one) of the acquisition result is recorded in association with each other.

  Then, the process proceeds to step S135, where the recording time t (n) corresponding to the latest record R (n) is 1 minute different from the recording time t (n−C) corresponding to the C previous record R (n−C). It is determined whether or not. In other words, since C = 1 at the time of step S135, the latest record R (n) and the immediately preceding record R (n−C) are continuously recorded in units of one minute in time series. It is determined whether or not If the difference is not 1 minute, that is, the latest record R (n) is created and recorded intermittently at intervals of 2 minutes or more from the immediately preceding record R (n-C), the determination is not satisfied. That is, it is considered that the operation for obtaining the current suspicious identification number itself is suddenly performed, and this flow is finished. On the other hand, when the difference is 1 minute, that is, when the latest record R (n) is created and recorded continuously in units of 1 minute with the immediately preceding record R (n−C), the determination is satisfied, Control goes to step S140.

  In step S140, whether or not the suspicious identification number of the content acquired this time is recorded in the record R (n-C) immediately before the latest record R (n), that is, the suspicious identification number of the content acquired this time is It is determined whether or not the record R (n-C) and the current record R (n) are acquired and recorded continuously. If the suspicious identification number of the content acquired this time is not recorded in the previous record R (n-C), the determination is not satisfied, that is, the suspicious identification number of the content acquired this time is different from that acquired last time. As a result, the flow is terminated. On the other hand, if the suspicious identification number of the content acquired this time is also recorded in the previous record R (n-C), the determination is satisfied, that is, the suspicious identification number of the content acquired this time is continuously acquired from the previous time. The process proceeds to step S145.

  In step S145, the recording time t (n-C) corresponding to the previous record R (n-C) is substituted into tmp which is a time comparison buffer, and the process proceeds to step S150.

  In step S150, it is determined whether or not the value of the continuous stay counter C is 1 less than the value of the latest record number n, that is, whether or not n−C−1 = 0 holds. If n-C-1 = 0 holds, the determination is satisfied, that is, there is no record R (n-C-1 = 0) prior to the latest record R (n) (record number m is This flow is terminated. On the other hand, if n−C−1 = 0 does not hold, the determination is satisfied, that is, there is a record R (n−C−1> 0) that is (C + 1) before the latest record R (n), and the reference is made. Considering that it is possible, the process proceeds to step S155.

  In step S155, the contents of the record R (n−C−1) (C + 1) before the latest record R (n) are read.

  Thereafter, the process proceeds to step S160, and the recording time t (n−C−1) corresponding to the record R (n−C−1) read in step S155 is one minute difference from the time comparison buffer tmp at this time. It is determined whether or not. That is, the record R (n−C) C before the latest record R (n) and the record R (n−C−1) (C + 1) before the latest record R (n) are time-series. It is determined whether or not the data is continuously recorded every 1 minute. If the difference is not 1 minute, that is, if the record R (n-C) is created and recorded intermittently at intervals of 2 minutes or more from the immediately preceding record R (n-C-1) Is not satisfied. That is, the operation of acquiring the suspicious identification number itself is considered to have been performed C times continuously up to the record R (n-C) regardless of the acquisition contents, and this flow is terminated at this point. . On the other hand, when the difference is 1 minute, that is, the record R (n−C) that is (C + 1) previous to the latest record R (n) is continuous with the record R (n−C−1) immediately before it in units of 1 minute. If it has been created and recorded in step S165, the determination is satisfied, and the routine goes to the next Step S165.

  In the next step S165, whether or not the suspicious identification number of the content acquired this time is recorded in the record R (n−C−1) (C + 1) before the latest record R (n), that is, acquired this time. It is determined whether or not the suspicious identification number of the obtained content has been acquired and recorded continuously (C + 1) times from the latest record R (n) to the record R (n−C−1). If the suspicious identification number of the content acquired this time is not recorded in the record R (n-C-1), the determination is not satisfied. That is, it is assumed that the suspicious identification number of the content acquired this time is acquired and recorded continuously C times from the latest record R (n) to the record R (n-C), and at this point in time, Exit. On the other hand, if the suspicious identification number of the content acquired this time is also recorded in the record R (n-C-1), the determination is satisfied, that is, the suspicious identification number of the content acquired this time continues (C + 1) times or more. Assuming that the images have been continuously acquired, the process proceeds to the next step S170.

  In step S170, the time of the time comparison buffer tmp is advanced one minute (that is, tmp = tmp−1), and the value of the continuous stay counter C is incremented by one. And it returns to step S150 and repeats the same procedure.

  By executing the above flow, using the suspicious identification number acquired by the single monitoring process of FIG. 4 and the corresponding recording time, the suspicious identification number detection log of the identification data RD is recorded, and these are recorded. The continuous stay counter value indicating how many records are continuously recorded in the past can be output by referring to the one suspicious identification number.

  FIG. 6 shows a recording state when an abnormal state is detected by further recording the suspicious identification number detection log shown in FIG.

  In the example shown in FIG. 6, the latest record is R (9), that is, the value of the corresponding latest record number n is 9. Of the suspicious identification numbers acquired in the latest record R (n = 9), “11E” is continuously recorded up to the previous record R (n−5 = 4). Also, for these six records R (4) to R (9), the corresponding recording times t (4) to t (9) are continuous times in units of one minute (see the underlined portion in the figure). ).

  In such a recording state, the value of the continuous stay counter C = 5 is output in the ID stay time management process of step S100 shown in FIG. Then, it is considered that the same suspicious identification number has been continuously acquired for 5 minutes or more in the determination of step S40 in FIG. 4, that is, the theft is performed on the navigation device 100 including the antitheft unit 8. The unit side abnormality handling process in step S200 is executed.

  In the anti-theft unit 8 in the above-described embodiment, the suspicious identification number acquisition unit 22 (identification information acquisition) acquires the individual identification number (corresponding to individual identification information) of the identification portable device that exists in the vicinity via wireless communication or wired communication. A storage medium 13c (corresponding to a first identification information storage means) that stores the individual identification number acquired by the suspicious identification number acquisition unit 22, and an individual identification number stored by the storage medium 13c. When the abnormal state is detected by the ID stay time management unit 23 (corresponding to the first theft detection unit) that detects an abnormal state that can be regarded as theft being performed, and the ID stay time management unit 23 And an abnormality response processing unit 24 (corresponding to the first abnormality processing means) for performing a corresponding predetermined abnormality response process.

  In the navigation device 100 (corresponding to a navigation device with an anti-theft function) in the above embodiment, route search means for searching for a route from the current location to the destination, and the vehicle is guided according to the route searched by the route search means. Guidance means for outputting guidance guidance, suspicious identification number acquisition unit 22 (corresponding to identification information acquisition means) for acquiring an individual identification number of an identification portable device existing in the vicinity via wireless communication or wired communication, The theft is performed based on the storage medium 13c (corresponding to the first identification information storage means) that stores the individual identification number acquired by the number acquisition unit 22 and the individual identification information stored in the storage medium 13c. ID stay time management unit 23 (corresponding to the first theft detection means) for detecting an abnormal state that can be regarded as an ID stay time management unit 23 Ri when said abnormal condition is detected, with the corresponding predetermined anomaly correction is carried out anomaly correction section 24 (corresponding to a first abnormality processing unit), a.

  In this way, when an abnormal state that can be considered that the theft has been performed is detected by the ID stay time management unit 23, it has been acquired around the navigation device 100 including the anti-theft unit 8 until then. The individual identification number is recorded in the storage medium 13c. In recent years, since the penetration rate of identification portable devices that transmit individual identification numbers is very high, it is highly possible that the theft themselves also possess such identification portable devices, and the storage medium 13c is detected when an abnormal state is detected. One of the recorded individual identification numbers is likely to be a powerful clue to identify the individual theft.

  When an abnormal state is detected, the abnormality response processing unit 24 collects detailed information about the theft by associating it with the individual identification number stored in the storage medium 13c, or theft to the server 200. Processes such as notification. As a result, when the theft is actually performed, information for specifying the individual theft can be acquired.

  In addition, by providing the power supply unit 6 independent inside the antitheft unit 8, it is possible to use the antitheft unit 8 in a single form separated from the navigation device 100, and this single antitheft unit 8 can be used as a motorcycle. It can be used by installing it on other devices or items that can be stolen. In this case, the communication unit 2, the speaker 4, and the information collecting device 5 may also be provided in the anti-theft unit 8.

  Further, the individual identification number detection unit 14 may not only detect the individual identification number via wireless communication but also acquire the individual identification number of the identified portable device via wired communication based on a standard such as USB. Good.

  In the antitheft unit 8 in the above embodiment, the storage medium 13c stores the individual identification number in association with the recording time (corresponding to the acquisition time) when the suspicious identification number acquisition unit 22 acquires the individual identification number. To do.

  In this way, it becomes clear how each individual identification number recorded in the storage medium 13c was acquired, and it can be used for identifying the theft individual with reference to the acquisition time of each individual identification number. . For example, when the same individual identification number is acquired at the same time zone every day even when the theft has not yet been performed, there is a possibility that the thief is conducting a preview. In this way, it is possible to foresee the theft based on the temporal trend in which the individual identification number is acquired.

  In the suspicious identification number detection log, the current position information acquired by the navigation main unit 3 may be recorded in association with the recording time and the individual identification number in the same record. In this case, it is possible to examine the regional tendency of where the previewing action with the specific individual identification number described above is performed, which is a powerful clue for specifying the theft individual.

  In the antitheft unit 8 in the above embodiment, the suspicious identification number acquisition unit 22 continuously acquires the individual identification number, and the storage medium 13c is stored every minute (corresponding to every predetermined unit time). The individual identification number and the recording time are stored in association with each other.

  In this way, when the same identification portable device stays for a long time of 1 minute or longer, acquisition of the corresponding individual identification number is repeatedly recorded every minute. By referring to this record, it becomes clear how often the individual identification number has been acquired continuously for how long, and can be used to identify the theft individual with higher accuracy.

  In the anti-theft unit 8 in the above embodiment, the suspicious identification number acquisition unit 22 suspicious of the acquired individual identification numbers other than the registered identification numbers registered in advance (corresponding to registered identification information). Acquired as an identification number (corresponding to suspicious identification information).

  In this way, by registering the individual identification number of the identification portable device possessed by the legitimate user as a registered identification number in advance, the registered identification number is acquired frequently or continuously for a long time. Even if it is done, it is possible to prevent erroneous detection of an abnormal state without being mistaken for the theft.

  In the anti-theft unit 8 in the above-described embodiment, the ID stay time management unit 23 (corresponding to the first anti-theft means) has the same suspicious identification number in the suspicious identification number detection log of the storage medium 13c five times (predetermined). The state that is repeatedly stored every minute over the above records is detected as the abnormal state.

  In this way, it is considered very unnatural to obtain an unregistered suspicious identification number continuously for a long time, that is, a thief who sends a suspicious identification number continues for more than 5 minutes for theft. Therefore, it can be regarded as existing around the anti-theft unit 8. Therefore, this state can be regarded as an abnormal state in which theft is actually being performed and detected.

  In the anti-theft unit 8 in the above-described embodiment, the abnormality handling processing unit 24 obtains surrounding sound and images as information related to the theft, and stores them in the storage medium 13c in association with the individual identification numbers. A collection device 5 (corresponding to detailed information collection means) is used.

  In this way, when an abnormal state is detected, it is possible to acquire image information and audio information, which are detailed information of the theft, using the camera 5a and the microphone 5b that are the information collecting device 5, and these can be suspicious. By recording in association with the identification number, it can be used as an effective clue when specifying the theft individual.

  In the anti-theft unit 8 in the above embodiment, the physical state detection unit 21 uses the physical state detection sensor 12 that detects a change in the physical state.

  In this way, it is possible to detect changes in physical state such as tilt, vibration, voltage change, ultrasonic wave, sound feeling, and heat change detected by the physical state detection sensor 12. In addition, each of the sensors 12a to 12d can be visually recognized from the outside of the vehicle or can be clearly seen that it is installed. As a result, it is possible to cause an alarm that the theft can be easily stolen if only the sensor 12 is deceived. On the other hand, in actuality, by detecting an abnormal state that leads to theft by the function of the ID stay time management unit 23, it is possible to reliably identify the theft by the function of the abnormality handling processing unit 24.

  In addition, this embodiment is not restricted above, A various deformation | transformation is possible. For example, monitoring may be performed in cooperation with a theft countermeasure unit and a server. Specifically, in the anti-theft system S of the above-described embodiment, the anti-theft unit 8 performs everything from acquisition of a suspicious identification number to record creation of a suspicious identification number detection log and ID stay time management. However, for example, the anti-theft unit 8 may only acquire a suspicious identification number, and the server 200 may perform monitoring in which the suspicious identification number detection log is recorded and ID stay time management is shared.

  In this case, there is almost no hardware difference from the above embodiment, the suspicious identification number detection log is recorded in the storage unit 13 on the server 200 side, and the monitoring process shown in FIG. The only difference is that the anti-theft unit 8 and the server 200 share it. Hereinafter, only the monitoring processing executed by the anti-theft unit 8 and the server 200 in this modification will be described.

  FIG. 7 is a flowchart showing a procedure example of the unit side monitoring process executed by the CPU 11 of the antitheft unit 8 in this modification. In FIG. 7, only differences from FIG. 4 will be described, and description of equivalent procedures will be omitted as appropriate.

  In the procedure shown in FIG. 7, step S7 is newly provided before step S10. In step S7, abnormal state information, which is information relating to detection of an abnormal state, is downloaded from the server 200 via wireless communication.

  If an identification portable device is detected in the vicinity in step S20, the determination is satisfied, and after obtaining the suspicious identification number and the current time in steps S30 and S35, the process proceeds to newly provided step S37. In step S37, the suspicious identification number and the current time (that is, the acquisition time) are uploaded to the server 200. Then, the process proceeds to step S25.

  By performing such unit-side monitoring processing, the anti-theft unit 8 uploads it to the server 200 together with the acquisition time every time it detects a suspicious identification number.

  FIG. 8 is a flowchart illustrating a procedure example of server-side monitoring processing executed by the server 200 in this modification. In FIG. 8, only differences from FIG. 4 will be described, and description of equivalent procedures will be omitted as appropriate.

  In FIG. 8, first, in step S55, the suspicious identification number and its acquisition time are downloaded from the anti-theft unit 8 via wireless communication (see step S37 described above).

  Thereafter, the same ID stay time management process as in step S100 shown in FIG. 5 is executed, and the server 200 side records the suspicious identification number detection log and how long the received suspicious identification number is. The detection of whether or not it is continuously acquired is executed.

  Then, the process proceeds to step S60, and it is determined whether or not the value of the continuous stay counter C output by the ID stay time management process in step S100 is equal to or greater than a predetermined value (5 in this example). The determination in step S60 is equivalent to the determination in step S40 in FIG. 4, and when the value of the continuous stay counter C is 5 or more, that is, the same suspicious identification number is continuously acquired for 5 minutes or more. If so, the determination is satisfied. That is, it is considered that the theft has been performed on the navigation device 100 including the antitheft unit 8, and the process proceeds to the server side abnormality handling process in step S300.

  In the server side abnormality handling process in step S300, in addition to uploading abnormal state information indicating that an abnormal state has been detected to the antitheft unit 8 via wireless communication, the theft received from the antitheft unit 8 thereafter The person's image information / audio information is recorded in the suspicious identification number detection log in association with the suspicious identification number. In addition, it notifies the relevant places that the theft has been performed. Then, based on the suspicious identification number recorded in the suspicious identification number detection log and the image information / audio information, it is possible to identify the theft individual. The function of the abnormality handling processing unit 24 at this time corresponds to a theft verification unit. Thereafter, the process proceeds to step S65.

  On the other hand, if the value of the continuous stay counter C is less than 5 in the determination in step S60, the determination is not satisfied, that is, it is not considered that the theft has been performed yet, and the process proceeds to step S65.

  In step S65, a determination equivalent to that in step S25 in FIG. 4 is performed. If the end operation has not been performed, the determination is not satisfied, the process returns to step S55, and the same procedure is repeated. On the other hand, when the end operation is performed, the determination is satisfied, and this flow is ended.

  By performing such server-side monitoring processing, the server 200 records the suspicious identification number detection log based on the suspicious identification number transmitted from the anti-theft unit 8 and the acquisition time thereof, and the ID stay time based thereon. Executes abnormal state detection by management. If the occurrence of an abnormal state is detected, the server side abnormality handling process S300 is executed.

  In the anti-theft system S in the above modification, the anti-theft unit 8 (corresponding to a terminal device) provided in the anti-theft object, and the server 200 that monitors the theft of the article in cooperation with the anti-theft unit 8. In the anti-theft system S configured by the anti-theft unit 8, the anti-theft unit 8 acquires an individual identification number (corresponding to individual identification information) of an identification portable device existing in the vicinity via wireless communication or wired communication. And a communication unit 2 (corresponding to identification information transmitting means) for transmitting the individual identification number acquired by the suspicious identification number acquiring part 22 to the server 200. The server 200 receives the individual identification number sent from the communication unit 2 of the anti-theft unit 8 (identification unit). A storage medium 13c (corresponding to a second identification information storage means; not shown), which stores the individual identification number received by the identification information reception means, and a storage medium. Based on the individual identification number stored in 13c, an ID stay time management unit 23 (corresponding to the second theft detection means) that detects an abnormal state that can be regarded as theft being performed, and this ID stay time management unit 23 And an abnormality response processing unit 24 (corresponding to a second abnormality processing means) that performs a corresponding predetermined abnormality response process when the abnormal state is detected.

  In this way, the anti-theft unit 8 can only acquire the suspicious identification number, and the server 200 can perform monitoring in cooperation by sharing the creation of the suspicious identification number detection log and the ID stay time management. In this case, the processing load in the antitheft unit 8 is reduced, so that the circuit configuration can be omitted.

  In the anti-theft system S in the above modification, the abnormality handling processing unit 24 has a theft collation means for identifying the theft by referring to the individual identification number stored in the second identification information storage means. .

  In this way, even after the navigation device 100 including the anti-theft unit 8 has been stolen, it is possible to reliably identify the theft.

  In addition to those already described above, the methods according to the above-described embodiments and modifications may be used in appropriate combination.

1 External antenna 2 Communication unit 3 Navigation main unit 4 Speaker 5 Information collecting device (equivalent to detailed information collecting means)
5a camera 5b microphone 6 power supply unit 7 interface 8 anti-theft unit 11 CPU
12 Physical state detection sensor 13 Storage unit 13a ROM
13b RAM
13c Storage medium 14 Individual identification number detection unit 15 Short-range antenna 21 Physical state detection unit (corresponding to first theft detection means)
22 Suspicious identification number acquisition unit (equivalent to identification information acquisition means)
23 ID stay time management section (corresponding to the first theft detection means)
24 Anomaly response processing unit (corresponding to first anomaly processing means)
25 Control unit 100 Navigation device (navigation device with anti-theft function)
200 server S anti-theft system RD identification data SD detailed data

Claims (9)

Identification information acquisition means for acquiring individual identification information of identification portable devices existing in the surroundings via wireless communication or wired communication;
First identification information storage means for storing the individual identification information acquired by the identification information acquisition means;
Based on the individual identification information stored by the first identification information storage means, a first theft detection means for detecting an abnormal state that can be regarded as theft being performed;
A first abnormality processing means for performing a corresponding predetermined abnormality handling process when the abnormal state is detected by the first theft detection means;
An antitheft device characterized by comprising: The first identification information storage means includes
The anti-theft device according to claim 1, wherein the individual identification information is stored in association with an acquisition time when the identification information acquisition unit acquires the individual identification information. The identification information acquisition means includes
Continuously acquiring the individual identification information,
The first identification information storage means includes
3. The antitheft device according to claim 2, wherein the individual identification information and the acquisition time are stored in association with each other at a predetermined unit time. The identification information acquisition means includes
4. The anti-theft device according to claim 3, wherein, among the acquired individual identification information, information other than registered identification information registered in advance is acquired as suspicious identification information. The first theft detection means is
The state in which the same suspicious identification information is continuously stored in the first identification information storage means more than a predetermined number of times in the predetermined unit time is detected as the abnormal state. 4. The anti-theft device according to 4. The first abnormality processing means includes
6. A detailed information collecting unit that obtains a surrounding voice or image as information related to the theft and stores it in the first identification information storage unit in association with the individual identification information. An antitheft device according to any one of the above. A route search means for searching for a route from the present location to the destination;
Guidance means for outputting guidance guidance for guiding the vehicle according to the route searched by the route search means;
Identification information acquisition means for acquiring individual identification information of identification portable devices existing in the surroundings via wireless communication or wired communication;
First identification information storage means for storing the individual identification information acquired by the identification information acquisition means;
Based on the individual identification information stored by the first identification information storage means, a first theft detection means for detecting an abnormal state that can be regarded as theft being performed;
A first abnormality processing means for performing a corresponding predetermined abnormality handling process when the abnormal state is detected by the first theft detection means;
A navigation device with an anti-theft function, comprising: In the anti-theft system comprising a terminal device provided in an anti-theft object, and a server that monitors the theft of the article in cooperation with the terminal device,
The terminal device
Identification information acquisition means for acquiring individual identification information of identification portable devices existing in the surroundings via wireless communication or wired communication;
Identification information transmission means for transmitting the individual identification information acquired by the identification information acquisition means to the server,
The server
Identification information receiving means for receiving the individual identification information sent from the identification information transmitting means of the terminal device;
Second identification information storage means for storing the individual identification information received by the identification information receiving means;
Based on the individual identification information stored by the second identification information storage means, second theft detection means for detecting an abnormal state that can be regarded as a theft being performed;
Second abnormality processing means for performing a corresponding predetermined abnormality handling process when the abnormal state is detected by the second theft detection means;
An antitheft system characterized by comprising: The second abnormality processing means is
9. The anti-theft system according to claim 8, further comprising a theft verification unit that identifies a theft by referring to the individual identification information stored in the second identification information storage unit.

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