JP2009269434A - In-vehicle device, and vehicle status detecting method - Google Patents

Abstract

An object of the present invention is to prevent theft of a vehicle even when a user does not always pass a specific point, because the device for preventing theft is less likely to be destroyed or removed from the vehicle.
An in-vehicle device 10 measures its own position as a position of a vehicle 1 and records it as operation history data 5 and obtains current position data 7. The control unit of the in-vehicle device 10 collates the current position data 7 with the operation history data 5, and the vehicle 1 is in a normal situation along the past operation history or the vehicle 1 does not follow the past operation history. When it is determined whether the vehicle 1 is in a situation and it is determined that the vehicle 1 is in an abnormal state, an alarm is generated. When the traveling route does not appear in the past operation history, or when the vehicle is parked at a position different from the usual parking position within the usual parking time zone, the situation is abnormal.
[Selection] Figure 1

Description

  The present invention relates to an apparatus and a method for detecting the state of a vehicle in order to prevent theft of the vehicle (automobile).

  Various methods have been considered as methods for preventing theft of the vehicle.

  One of them is a method of attaching a device for detecting entry into the vehicle, an instrument for fixing a handle, or the like to the vehicle.

  A method that can detect that the vehicle has been stolen after it has been stolen is also considered.

  Specifically, in Patent Document 1 (Japanese Patent Laid-Open No. 2006-144421), as an authentication system, it is set and registered in advance that a user passes a specific point as a history of movement by the user's car. It is shown that whether or not the user is a legitimate user (whether or not the vehicle has been stolen) is determined based on whether or not the vehicle passes through a specific location registered for registration.

  Further, in Patent Document 2 (Japanese Patent Laid-Open No. 2003-212096), a master wireless communication device is attached to an automobile, a slave wireless communication device is attached to a terminal such as a mobile phone terminal possessed by a user, and when the door is opened and closed, the master wireless communication device is attached. It is shown that it is determined whether there is an abnormality such as whether the user gets on or off, or the car is stolen depending on whether or not constant communication is performed between the communication device and the slave wireless communication device. .

The prior art documents listed above are as follows.
JP 2006-144421 A Japanese Patent Laid-Open No. 2003-212096

  However, the method of attaching a device that detects entry into the vehicle or a device that secures the handle to the vehicle can be seen because the device or device is visible, the device or device is destroyed or removed, and the vehicle is stolen. It may be rare.

  In addition, the above-described method disclosed in Patent Document 1 cannot be used when there is no point where the user always passes and cannot be used generally.

  Furthermore, in the above-described method disclosed in Patent Document 2, it is necessary to attach a wireless communication device such as a Bluetooth (registered trademark) system to a terminal owned by a vehicle and a user.

  Therefore, the present invention is capable of preventing theft of the vehicle even if the device for preventing theft is destroyed or removed from the vehicle and the user does not always pass a specific point. Is.

The in-vehicle device of this invention is
The past operation history of the vehicle, together with the date and time at which the position measured as the position of the vehicle on which the in-vehicle device is installed by the positioning means of the in-vehicle device or the positioning means connected to the in-vehicle device Storage means recorded as
Using the position measured by the positioning means as the current position, collating with the past operation history recorded in the storage means, the vehicle is in a normal situation along the past operation history, or the vehicle is past A control means for determining whether there is an abnormal situation that does not follow the operation history of
Means for generating an alarm when the control means determines that the vehicle is in an abnormal condition;
Shall be provided.

  In this case, in the first embodiment of the present invention, the control means determines whether the vehicle is in a normal state or the vehicle is in an abnormal state when the vehicle is traveling.

  In the second form, the control means has parked the vehicle for a predetermined time or more within a past parking time zone determined from a past operation history, and the parking position is a past operation history. When it is different from the past parking position determined from the above, it is determined that the vehicle is in an abnormal state.

  In the present invention described above, the vehicle is stolen and the user travels on a route that the user does not normally pass, or the user is parked in a place different from the place where the user is normally parked during the time when the user is normally parked. If the vehicle status does not follow the user's past operation history, an alarm is generated.

  In this case, although the vehicle has been stolen, the user or another person knows that the vehicle has been stolen, and the vehicle is likely to return to the user. As a result, theft can be prevented. .

  In addition, the in-vehicle device can be installed in an invisible place unlike an apparatus for detecting entry into the vehicle or an instrument for fixing the handle, and therefore, there is little risk of being destroyed or removed from the vehicle during theft.

  Furthermore, the present invention can be applied to many general users, such as when the user does not always pass a specific point, and the user does not need to make any special settings or inputs to the in-vehicle device.

[1. Example of system and vehicle-mounted device: FIGS. 1 and 2]
(1-1. Outline of vehicle status detection system: Fig. 1)
FIG. 1 shows an example of a vehicle situation detection system using an in-vehicle device of the present invention.

  In the vehicle state detection system of this example, a vehicle-mounted device 10 as described below is attached to the vehicle 1, specifically, at a place where the vehicle 1 is not conspicuous.

  The in-vehicle device 10 measures the position of itself (the in-vehicle device 10) as the position of the vehicle 1 by receiving radio waves from a GPS (Global Positioning System) satellite group 3.

  As the position, three-dimensional coordinates including the altitude can be calculated, but only the latitude and longitude may be calculated.

  The measured position is recorded in the storage unit of the in-vehicle device 10 as a past operation history. Specifically, as the operation history data 5, a set of time information indicating the measured date and time information indicating the position measured at the date and time is extracted and recorded at regular time intervals.

  That is, the individual position information indicates the position measured as the current position at the date and time indicated by the corresponding time information, but becomes information indicating the past operation history by being recorded in the storage device unit of the in-vehicle device 10. .

  The “operation” in this case is not limited to the case where the vehicle 1 is traveling, but includes the case where the vehicle 1 is parked in a garage or a parking lot.

  The in-vehicle device 10 obtains the current position data 7 by further measuring its own position as the position of the vehicle 1 in the state where the operation history data 5 is recorded in the storage device section as described above.

  The current position data 7 is data indicating the position measured as the current position at the date and time indicated by each time information, similarly to the operation history data 5.

  As will be described later, the control unit of the in-vehicle device 10 compares the current position data 7 with the operation history data 5 to determine whether the vehicle 1 is in a normal state or an abnormal state.

(1-2. Configuration of in-vehicle device: Fig. 2)
FIG. 2 shows an example of the in-vehicle device 10.

  In the in-vehicle device 10 of this example, a CPU 12, a ROM 13, a RAM 14, and a storage device unit 16 are connected to a bus 11.

  The ROM 13 stores a program executed by the CPU 12 and necessary fixed data. In the RAM 14, a program and data such as the current position data 7 are developed. The CPU 12, ROM 13, and RAM 14 constitute a control unit 15.

  The storage device unit 16 is configured by a nonvolatile memory or a disk storage medium. The operation history data 5 and the like are recorded in the storage device 16.

  Further, a GPS antenna 21, a GPS receiving unit 22, and a positioning calculation unit 23 are connected to the bus 11.

  A signal from the GPS satellite group 3 shown in FIG. 1 is received by the GPS antenna 21 and the GPS receiver 22 and demodulated by the GPS receiver 22. The positioning calculation unit 23 measures the position of the in-vehicle device 10, that is, the position of the vehicle 1 from the demodulated signal.

  The position information indicating the measured position is expanded on the RAM 14 as current position data 7 on the one hand, together with time information, and is recorded in the storage unit 16 as operation history data 5 on the other hand.

  Further, an alarm processing unit 24, an alarm transmission unit 25, and an antenna 26 are connected to the bus 11.

  The alarm processing unit 24 generates an alarm signal according to an instruction from the CPU 12. The alarm transmitter 25 transmits the alarm signal from the antenna 26 as a radio wave.

  Specifically, in this example, the alarm transmitter 25 has a communication function similar to the communication function of the mobile phone terminal, and the alarm signal is transmitted to the mobile phone terminal 30 carried by the user through the mobile phone communication network. , Sent as mobile phone voice signal or e-mail.

  Further, an authentication processing unit 27 is connected to the bus 11, and a card slot 28 is provided in the housing unit of the in-vehicle device 10.

  The authentication processing unit 27 reads the authentication information recorded in the authentication card 29 when a user or a person registered in the in-vehicle device 10 inserts the authentication card 29 into the card slot 28 as described later, and performs authentication. The processing is performed.

[2. Vehicle status detection method: FIGS. 3 to 8]
(2-1. Operation history: Figs. 3 to 5)
As described above, the in-vehicle device 10 measures the position of the vehicle 1 from time to time and records it as the operation history data 5 in the storage device unit 16.

  In FIG. 3, an example of a user's vehicle operation condition is shown. In the map shown in FIG. 3, a point Pa is a user's home, and a point Pb is a place that the user visits regularly.

  The user parks the vehicle 1 in the garage at home, and usually leaves the point Pa, turns left at the point Pc, turns right at the point Pd, and turns left at the point Pe to the destination point Pb. arrive. On the way home, the vehicle leaves the point Pb, turns right at the point Pe, turns left at the point Pd, and turns right at the point Pc, and arrives at the point Pa at home.

  However, when the user cannot use the above route due to construction work, or when the user does not use the above route due to the mood of the day, the user does not turn left at the point Pc but turns left at the point Pf ahead, On the way home, turn right at point Pf without turning right at point Pe.

  In the case of the vehicle operation status as described above, the past operation history is schematically represented as shown in FIG. The route 41 between the points Pa and Pc and the route 42 between the points Pe and Pb have the highest traffic frequency as indicated by the thickest line. The route 43 between the points Pc and Pd and the route 44 between the points Pd and Pe have a high traffic frequency as shown by thick lines. The route 45 between the points Pc and Pf and the route 46 between the points Pf and Pe have a low traffic frequency as shown by thin lines.

  Furthermore, for example, the route 47 extending in the north direction from the point Pd and the route 48 extending in the east direction from the point Pf have a traffic frequency of zero as the past operation history of the user.

  FIG. 5A shows the traffic frequency on the route extending north and south through the points Pc and Pd, and FIG. 5B shows the traffic frequency on the route extending east and west through the points Pc and Pf. As described above, the traffic frequency of each of the partial paths 47 and 48 is zero.

(2-2. First example of vehicle status detection method: FIG. 6)
In the state where the past operation history is recorded as the operation history data 5 in the storage device unit 16 as described above, the in-vehicle device 10 detects the situation of the vehicle 1 as follows.

  First, the CPU 12 takes in the position measured by the positioning calculation unit 23 as the current position, and determines whether or not the vehicle 1 is traveling from the current position and the measurement date / time.

  When the position taken in as the current position changes with respect to the position taken in as the current position immediately before, the vehicle 1 is running.

  When determining that the vehicle 1 is traveling, the CPU 12 determines whether or not the route has appeared in the past operation history.

  When it is determined that the route has not appeared in the past operation history, the CPU 12 causes the alarm processing unit 24 to generate an alarm signal and causes the alarm transmission unit 25 to transmit the alarm signal.

  FIG. 6 shows an example of a vehicle state detection processing routine executed by the CPU 12 in this case. In the vehicle state detection processing routine of this example, the CPU 12 first takes in the measured position as the current position in step 51, and then determines in step 52 whether or not the vehicle is running.

  As described above, whether or not the vehicle is traveling can be detected based on whether or not the position taken in at that time has changed with respect to the position taken in immediately before. If it has changed, it is running, and if it has not changed, it is parked or parked.

  When the vehicle is not traveling, the routine proceeds from step 52 to step 59, where it is determined whether or not the vehicle situation detection process is to be terminated. If the vehicle situation detection process is not terminated, the routine returns from step 59 to step 51 to measure. Captured position as current position.

  When the vehicle is traveling, the process proceeds from step 52 to step 53, and it is determined whether or not the traveling route has appeared in the past operation history.

  When the operation history as shown in FIG. 4 and FIG. 5 is recorded and the traveling route is, for example, the route 43 or the route 44, the traveling route appears in the past operation history. Will be. On the other hand, when the traveling route is, for example, the route 47 or the route 48, the traveling route does not appear in the past operation history.

  When the traveling route appears in the past operation history, the process proceeds from step 53 to step 59 to determine whether or not to end the vehicle state detection process, and to end the vehicle state detection process. For example, the process returns from step 59 to step 51, and the measured position is taken in as the current position.

  On the other hand, when the running route does not appear in the past operation history, the process proceeds from step 53 to step 54 to generate an alarm.

  Specifically, in the example of FIG. 2, an alarm signal is generated by the alarm processing unit 24, transmitted to the alarm transmission unit 25, and transmitted to the mobile phone terminal 30 as a mobile phone voice signal or an e-mail. At this time, it is more preferable to transmit the current position of the vehicle 1 to the mobile phone terminal 30.

  Therefore, for example, if the vehicle 1 parked at the point Pa is stolen and turned left at the point Pc, and then goes to the route 47 beyond the point Pd without turning right at the point Pd, The user is informed by e-mail that the vehicle has been stolen.

  Therefore, the possibility that the vehicle 1 returns to the user increases, and as a result, the vehicle 1 can be prevented from being stolen. In this case, if the current position of the vehicle 1 is informed as described above, the vehicle 1 can be found more easily.

  In order to avoid the occurrence of an alarm as described above when the user travels on a route that the user has never traveled, the user inserts the authentication card 29 into the card slot 28 in the example of FIG.

  As a result, the CPU 12 stops the above-described detection processing, and no alarm is generated even if the user travels on a route that the user has never traveled.

  However, at this time, the position measured during the travel of the route is recorded as a past operation history, and becomes a position that appears in the past operation history at the time of detection after the next time.

  In addition, after the alarm is generated as described above, when the authentication card 29 is inserted into the card slot 28 by the user or the like, the in-vehicle device 10 is configured to stop the alarm generation.

  Whether or not the traveling route has appeared in the past operation history may be as follows.

  For example, the vehicle 1 does not turn left at the point Pc, turns left at the point Pf, and further turns left at the point Pe in front of the point Pb without going to the point Pb. In the past operation history, there has never been such a route.

  Therefore, at this time, the CPU 12 determines that the vehicle 1 is in an abnormal situation when it is detected that the vehicle has turned left at the point Pe without going to the point Pb, and generates an alarm.

(2-3. Second Example of Vehicle Status Detection Method: FIGS. 7 and 8)
In the first example described above, the vehicle situation is detected from the traveling route. However, the vehicle situation may be detected from the parking position.

  FIG. 7 shows a time zone in which it is recognized from the operation history data 5 shown in FIG. 1 that the vehicle 1 is parked at the point Pa shown in FIGS. 3 and 4 in the past operation history.

  In this service history, the last 10 days, the time zone from 19:00 on April 1 to 8:00 on April 2, the time zone from 18:00 on April 9 to 6:00 on April 10, The vehicle 1 is parked at the point Pa at least from 21:00 to 5:00 the next morning.

  The CPU 12 detects the common time zone, that is, the time zone from 21:00 to 5:00 in the next morning as the parking time zone of the vehicle.

  The CPU 12 generates an alarm when the vehicle is parked for a predetermined time or more within the parking time zone and the parking position is different from the parking position determined from the past operation history.

  The predetermined time is not a short time such as when the vehicle is stopped due to a signal or the like, but a long time such as when the vehicle is parked, for example, a time of 1 hour or more.

  FIG. 8 shows an example of a vehicle situation detection processing routine executed by the CPU 12 in this case. In the vehicle state detection processing routine of this example, the CPU 12 first detects a parking time zone and a parking position from the past operation history in step 61.

  In the example of FIG. 7, the time zone from 21:00 to 5:00 the next morning is detected as the parking time zone, and the point Pa shown in FIGS. 3 and 4 is detected as the parking position.

  Next, the CPU 12 takes in the measured position as the current position in step 62, and then determines in step 63 whether or not the current time is within the parking time zone detected in step 61.

  When the current time is not within the parking time zone, the routine proceeds from step 63 to step 69, where it is determined whether or not to end the vehicle situation detection process. Return to, and take the measured position as the current position.

  When the current time is within the parking time zone, the process proceeds from step 63 to step 64 to determine whether or not the current position is different from the position detected as the parking position in step 61.

  When the current position is the same as the position detected as the parking position, the process proceeds from step 64 to step 69 in the same manner as when the current time is not within the parking time zone.

  On the other hand, when the current position is different from the position detected as the parking position, the process proceeds from step 64 to step 65 to determine whether or not the vehicle has stopped for a predetermined time or more.

  Then, when the vehicle has not stopped for a predetermined time or longer, the current time is not within the parking time zone, and the current position is the same as the position detected as the parking position. Proceed to

  On the other hand, when it is determined that the vehicle has stopped at a position different from the position detected as the parking position at step 61 for a predetermined time or more, the routine proceeds from step 65 to step 66 to generate an alarm.

  Also in this case, in the example of FIG. 2, an alarm signal is generated by the alarm processing unit 24 and transmitted to the alarm transmission unit 25 to be transmitted to the mobile phone terminal 30 as an audio signal of a mobile phone or an e-mail. Also in this case, it is more preferable to transmit the current position of the vehicle 1 to the mobile phone terminal 30.

  In the example of FIG. 7, the vehicle 1 parked at the point Pa is stolen at about 1 o'clock on April 11, and the point 1 is different from the point Pa for 1 hour or more after 1:30 on the same day. Suppose you are parked.

  Assuming that the predetermined time is 1 hour, at this time, at 2:30 on the same day, the user is informed that the vehicle has been stolen by an audio signal of a mobile phone or an e-mail.

  Therefore, the possibility that the vehicle 1 returns to the user increases, and as a result, the vehicle 1 can be prevented from being stolen. In this case, if the current position of the vehicle 1 is informed as described above, the vehicle 1 can be found more easily.

  When the user goes somewhere in the vehicle 1 and does not return the vehicle 1 to the usual parking location on that day, or when the user changes the parking location of the vehicle 1 from the previous location to another location, FIG. In the example, the user inserts the authentication card 29 into the card slot 28.

  As a result, the CPU 12 stops the detection process described above, and no alarm is generated even if the user parks the vehicle 1 at another location. Therefore, the user is relieved from the trouble of generating an alarm even though the alarm is not generated.

  However, at this time, the position measured while parking at the relevant point is recorded as a past operation history, and becomes a position that appears in the past operation history at the time of subsequent detection.

  In addition, after the alarm is generated as described above, when the authentication card 29 is inserted into the card slot 28 by the user or the like, the in-vehicle device 10 is configured to stop the alarm generation.

[3. Other examples or embodiments]
The example described above is a case where the in-vehicle device that detects the vehicle situation has positioning means, but the in-vehicle device such as a car navigation device different from the in-vehicle device that detects the vehicle situation has positioning means, You may make it take in the positional information from now on the vehicle-mounted apparatus which detects the condition of a vehicle.

  When the alarm signal is transmitted as in the example of FIG. 2, the alarm signal may be transmitted not to the user of the vehicle but to a terminal of another person registered in the in-vehicle device. .

  Further, the alarm may be a warning for the surroundings by outputting sound from a speaker or turning on a rotating lamp. Of course, it may be configured such that an alarm is generated so as to call attention to the surroundings at the same time as transmitting a warning signal to a user or the like.

  In addition to the method shown in the example of FIG. 2, as a method for preventing the alarm from being generated in advance or stopping the alarm after the alarm has been generated, the personal identification number is input to the in-vehicle device by the input means provided in the in-vehicle device. Such a method can also be used.

It is a figure which shows an example of the vehicle condition detection system using the vehicle-mounted apparatus of this invention. It is a figure which shows an example of the vehicle-mounted apparatus of this invention. It is a figure which shows an example of a vehicle operation condition. It is a figure which shows an example of the past operation history. It is a figure which shows an example of the relationship between a path | route and a traffic frequency. It is a figure which shows an example of the process routine of the 1st example of a vehicle condition detection method. It is a figure with which it uses for description of a parking time slot | zone. It is a figure which shows an example of the process routine of the 2nd example of a vehicle condition detection method.

Explanation of symbols

  Since the main part is described in the figure, it is omitted here.

Claims (8)

The past operation history of the vehicle, together with the date and time at which the position measured as the position of the vehicle on which the in-vehicle device is installed by the positioning means of the in-vehicle device or the positioning means connected to the in-vehicle device Storage means recorded as
Using the position measured by the positioning means as the current position, collating with the past operation history recorded in the storage means, the vehicle is in a normal situation along the past operation history, or the vehicle is past A control means for determining whether there is an abnormal situation that does not follow the operation history of
Means for generating an alarm when the control means determines that the vehicle is in an abnormal condition;
A vehicle-mounted device comprising: The in-vehicle device according to claim 1,
The control means is an in-vehicle device that determines whether the vehicle is in a normal state or the vehicle is in an abnormal state when the vehicle is traveling. The in-vehicle device according to claim 1,
The control means is configured such that the vehicle is parked for a predetermined time or more in a past parking time zone determined from a past operation history, and the parking position is determined from a past operation history. An on-vehicle device that determines that the vehicle is in an abnormal state when it is different from a parking position. The in-vehicle device according to any one of claims 1 to 3,
The control unit stops the generation of an alarm by the collation determination or the alarm generation unit when a predetermined operation or input is performed on the in-vehicle device. The in-vehicle device according to any one of claims 1 to 3,
The alarm generation means is an in-vehicle device that transmits an alarm signal to a terminal registered in the in-vehicle device. The in-vehicle device according to any one of claims 1 to 3,
The alarm generation means is an in-vehicle device that generates an alarm by sound or light. The position measured as the position of the vehicle on which the in-vehicle device is installed by the positioning means of the in-vehicle device or the positioning means connected to the in-vehicle device is stored as the past operation history of the vehicle together with the measured date and time. Recording on the means;
Using the position measured by the positioning means as the current position, collating with the past operation history recorded in the storage means, the vehicle is in a normal situation along the past operation history, or the vehicle is past Determining whether there is an abnormal situation that does not fit in the operation history of
Generating an alarm when determining that the vehicle is in an abnormal condition;
A vehicle state detection method comprising: In the computer of the in-vehicle device provided with storage means and alarm generation means,
The past operation history of the vehicle, together with the measured date and time, as measured by the positioning means of the in-vehicle device or the positioning means connected to the in-vehicle device as the position of the vehicle in which the in-vehicle device is installed Recording in the storage means as
Using the position measured by the positioning means as the current position, collating with the past operation history recorded in the storage means, the vehicle is in a normal situation along the past operation history, or the vehicle is past Determining whether there is an abnormal situation that does not fit in the operation history of
When it is determined that the vehicle is in an abnormal situation, the alarm generation means generates an alarm; and
A program for running

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