JP3719513B2 - Vehicle anti-theft device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle theft prevention device effective for preventing theft of a vehicle.
[0002]
[Prior art]
Recently, various devices for preventing theft of vehicles have been commercialized. As an example, when a vehicle is parked, a device that is configured to issue an alarm or report to a security center when vibrations of the vehicle or the heat of a person who has entered the vehicle is detected. (Alarm system). In a vehicle equipped with this device, a state in which the vibration of the vehicle or the heat of a person who has entered the vehicle is detected is called a monitoring mode.
[0003]
The transition to the monitoring mode is configured to be performed manually by the vehicle owner. This is because if the vehicle automatically shifts to the monitoring mode just by parking the vehicle, the owner only loads and unloads luggage or washes the vehicle. It is because it will.
[0004]
[Problems to be solved by the invention]
In the above apparatus, since the operation for shifting to the monitoring mode requires an operation of inputting a password and is quite complicated, the vehicle owner may forget the operation method. In such a case, there is a problem that the vehicle is parked without being switched to the monitoring mode. Note that there are cases where it is difficult to automatically switch to the monitoring mode, such as when parking for a short time, when refueling, or when parking in an elevator parking lot.
[0005]
The present invention has been made in view of the above circumstances, and its purpose is to automatically switch to the monitoring mode only when necessary, and to prevent switching to the monitoring mode if it is not desired. It is in providing the vehicle antitheft device which can do.
[0006]
[Means for Solving the Problems]
In the first aspect of the present invention, position detecting means for detecting the position of the vehicle, storage means for storing the monitoring point for enabling the monitoring mode by the switch operation of the owner of the vehicle, and whether the vehicle has reached the monitoring point It is configured to include arrival determination means for determining whether or not, and control means for enabling the monitoring mode when it is determined that the vehicle has reached the monitoring point. According to this configuration, if you switch to the monitoring mode and store the point you want to park as a monitoring point, you can automatically switch to the monitoring mode only when necessary, and if you do not want to switch to the monitoring mode It becomes the structure which is not switched.
[0007]
According to the invention of claim 2, the arrival determining means is configured to determine that the vehicle has reached the monitoring point when the vehicle is located within a circle having a radius R centered on the monitoring point. Can be achieved.
[0008]
According to the third aspect of the invention, since the length of the radius R is adjusted based on the vehicle position detection error, it is possible to more accurately realize the determination of arrival at the monitoring point.
[0009]
According to the invention of claim 4, stop determination means for determining whether or not the vehicle has stopped is provided, and the arrival determination means is located within a circle with a radius R centering on the monitoring point, and the vehicle is Since it has been configured to determine that the vehicle has reached the monitoring point when the vehicle stops, the arrival determination becomes even more accurate.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a vehicle antitheft system will be described with reference to the drawings. First, FIG. 1 is a block diagram schematically showing an electrical configuration of a vehicle antitheft system 1 of the present embodiment. As shown in FIG. 1, the vehicle anti-theft system 1 includes a vehicle anti-theft alarm device 2 mounted on a vehicle (for example, an automobile) and a management device 3 installed in a security center.
[0011]
The vehicle burglar alarm device 2 includes a first device 4 and a second device 5 connected to the first device 4. The first device 4 is constituted by, for example, a car navigation device, and the car navigation device 4 shifts to the monitoring mode with respect to the second device 5 in addition to the function as a normal car navigation device. It has a function for issuing an instruction, a function for providing support for canceling the monitoring mode, and a function for changing a password. The specific configuration of the car navigation device 4 will be described later.
[0012]
Further, the second device 5 is constituted by, for example, a theft alarm reporting device. This theft alarm reporting device 5 detects an alarm (large alarm) when it detects vibration of the vehicle, heat of a person who has entered the vehicle, or the like. (Alarm sound of sound volume) and a function for reporting to the management device 3 of the security center. Here, a state (mode) in which the above function of the theft alarm reporting device 5 is operating is defined as a monitoring mode. The configuration of the burglar alarm reporting device 5 is almost the same as the configuration of the known Cocosecom with a vehicle alarm function (device incorporated in a security system provided by Secom Co., Ltd.). good.
[0013]
That is, the theft alarm reporting device 5 includes a sensor unit that detects whether or not the vehicle has been stolen, an alarm unit that issues an alarm, and a reporting unit that reports to the management device 3 of the security center. The sensor unit includes a sensor that detects vibration of the vehicle, a sensor that detects heat of a person who has entered the vehicle, and the like. The alarm unit is configured by a buzzer, a speaker, and the like that issue a high-volume alarm. The reporting unit is composed of a GPS mobile terminal (a mobile phone with a GPS receiver), detects the current position, information on the detected current position (data), and that the sensor unit has detected an abnormality. It has a function of transmitting a signal to the management device 3 of the security center via the mobile phone network 6.
[0014]
Then, the theft alarm reporting device 5 operates the monitoring mode when receiving the “instruction to shift to the monitoring mode” from the car navigation device 4, and conversely, when receiving the “instruction for canceling the monitoring mode” from the car navigation device 4, It is configured to stop the operation in the monitoring mode. Further, the theft alarm reporting device 5 is configured to change the password (necessary when canceling the monitoring mode) when receiving an instruction of “change password” from the car navigation device 4.
[0015]
On the other hand, the security center management device 3 is composed of a personal computer or the like, and is connected to the mobile phone network 6. When receiving the abnormality report, the management device 3 is configured to notify the vehicle owner of the abnormality. The owner is contacted by telephone by a security center operator. In addition, emergency responders are dispatched from the security center to the current position of the vehicle as necessary. The configuration of the security center may be substantially the same as the configuration of the security center incorporated in the security system provided by the well-known SECOM Co., Ltd.
[0016]
Here, a specific configuration of the car navigation device 4 will be described with reference to FIG. As shown in FIG. 2, the car navigation device 4 includes a control circuit 7, a position detector 8, a map data input device 9, an operation switch group 10, an external memory 11, a display device 12, and a remote control sensor 13. It consists of and.
[0017]
The control circuit 7 has a function of controlling the overall operation of the car navigation device 4 and is configured as a normal computer (for example, a microcomputer). That is, the control circuit 7 includes a CPU, a ROM, a RAM, an I / O, and a bus (all not shown) for connecting them.
[0018]
The position detector 8 includes a geomagnetic sensor 14, a gyroscope 15, a distance sensor 16, and a GPS (Global Positioning System) receiver 17. The position detector 8 is configured to detect the current position of the vehicle while interpolating with each other by the four sensors 14 to 17, and has a highly accurate position detection function. In addition, when position detection accuracy is not so required, the position detector 8 may be configured by any one of the four sensors 14 to 17 (or a combination of a plurality of sensors). The position detector 8 may be configured by combining a vehicle steering rotation sensor, a wheel sensor of a wheel, and the like.
[0019]
The map data input device 9 is constituted by a reading device that reads a recording medium such as a DVD-ROM, and inputs various data such as map data, map matching data, landmark data, and voice recognition dictionary data. Device.
[0020]
The display device 12 includes, for example, a liquid crystal display, an organic EL, a plasma display, and the like, and includes a display screen that can display a color, and clearly display a map, characters, images, and the like. On the display screen of the display device 12, the current position mark of the vehicle, map data, and additional data such as a guide route displayed on the map can be displayed in an overlapping manner.
[0021]
The operation switch group 10 includes a touch switch (touch panel) provided on the upper surface of the display screen of the display device 12 and a mechanical push switch provided on the periphery of the display screen. The external memory 11 is configured by a memory card, a magnetic tape, or the like.
[0022]
The control circuit 7 of the car navigation device 4 automatically calculates the optimum route (guidance route) from the current position to the destination when the user operates the operation switch group 10 or the remote controller 18 to set the destination. And a function for executing a map matching process for positioning the current position on the map. As a method for automatically setting the optimum route, for example, the Dijkstra method is known. When the remote control 18 is operated, the operation signal is provided to the control circuit 7 via the remote control sensor 13. The control circuit 7 is configured to be able to transmit / receive data to / from the external network 20 via the mobile phone 19 by connecting the mobile phone 19.
[0023]
The control circuit 7 has functions as storage means, arrival determination means, and control means of the present invention, and these functions will be described below in order.
[0024]
First, a function as a storage unit, that is, a storage unit that stores a monitoring point for enabling the monitoring mode will be described. The owner of the vehicle registers (stores) a home (such as a parking lot at a home or a company) (a place where the monitoring mode is to be operated) as a monitoring point by operating the operation switch group 10 of the car navigation device 4. To do. In this case, the operation method for registering the monitoring point may be substantially the same as the operation method for inputting a destination or the like in the car navigation device. In the case of the present embodiment, for example, 10 monitoring points can be registered. The monitoring point is configured to be stored in a memory (for example, a flash memory) in the control circuit 7.
[0025]
Next, the function of the arrival determination means, that is, the arrival determination means for determining whether or not the vehicle has reached the registered monitoring point will be described with reference to FIG. In this case, the control circuit 7 determines whether or not the current position of the vehicle has reached any one of the registered monitoring points based on the position detection signal from the position detector 8. to decide.
[0026]
Specifically, as shown in FIG. 3, it is determined whether or not the position of the vehicle has reached a circle having a radius R centered on the monitoring point K. Here, the radius R is the sum of the fixed value R1 and the variable value R2. The fixed value R1 is a value that takes into account an error at the time of setting by the user and an error that the position detector 8 has in advance, and is set to 50 m, for example. The variable value R2 is a variable part of an error when the position detector 8 calculates the current position, and is a variable value considering the GPS reception accuracy, the matching error with the road, etc., and cannot receive the GPS for a while. The value is large when the vehicle is off the road or when traveling for a while. The variable value R2 is, for example, a value of about 0 to 200 m, and is a numerical value that changes according to the traveling state of the vehicle. Accordingly, the radius R is adjusted based on the vehicle position detection error.
[0027]
Further, in this embodiment, as described above, after determining that the position of the vehicle has reached the circle with the radius R centered on the monitoring point K, it is further determined whether the vehicle speed has become zero. It is configured to determine whether or not the vehicle has stopped, and to determine that the vehicle has reached the monitoring point when it is determined that the vehicle has stopped. Thereby, the case where the vehicle only passes the monitoring point is not determined to be reached.
[0028]
Then, after determining that the monitoring point has been reached as described above, the control circuit 7 further determines whether or not the user has stopped the engine of the vehicle. An instruction to shift to the mode is configured to be transmitted to the theft alarm reporting device 3. In the case of this configuration, the control circuit 7 constitutes a stop determination unit.
[0029]
Subsequently, the theft alarm reporting device 3 is configured to shift to the monitoring mode in response to the above instruction. As a result, the monitoring mode is activated. In this case, the theft alarm reporting device 3 does not immediately shift to the monitoring mode, but shifts to the monitoring mode after a set time (for example, 5 minutes) has elapsed since receiving the above instruction. . This is for preventing the user from erroneously detecting the operation of getting off the vehicle after the engine is stopped, the operation of dropping the luggage or the like from the vehicle, and the like.
[0030]
When the theft alarm reporting device 3 detects the vibration of the vehicle or the heat of the person who has entered the vehicle in the state of transition to the monitoring mode, the alarm device 3 issues a loud sound to the security center management device 3. Report that an abnormality (theft) has occurred (transmission of information to the above and transmission of data on the current position of the vehicle (position data detected by the GPS receiver incorporated in the theft alarm reporting device 3)) It is configured.
[0031]
Further, in the present embodiment, the shift to the monitoring mode can be manually designated. In this case, for example, when the user operates a monitoring mode manual setting key (operation switch group 10) displayed on the display device 12 of the car navigation device 4, an instruction to shift to the monitoring mode is transmitted to the vehicle theft alarm device 2. It is configured. As a result, the monitoring mode is set.
[0032]
Next, when the owner of the vehicle gets on the vehicle while the vehicle is parked in the monitoring mode, it is necessary to execute an operation for canceling the monitoring mode. In this case, when a user operates the monitoring mode release key (operation switch group 10) displayed on the display device 12 of the car navigation device 4, a screen for inputting a password is displayed. When a password predetermined in this screen is input, The car navigation device 4 is configured to transmit an instruction to cancel the monitoring mode to the theft alarm notification device 5 (for example, by operating a numeric key displayed on the display device 12). And when this cancellation | release instruction | indication is received, the theft alarm notification apparatus 5 is comprised so that monitoring mode may be cancelled | released.
[0033]
Moreover, in the said Example, a user can change a password by operating the password change key (for example, the key displayed on the display apparatus 12) in the operation switch group 10 of the car navigation apparatus 4. FIG. It is configured to be able to. In this case, operations such as inputting an old password and a new password are executed by operating a numeric keypad displayed on the display device 12, for example.
[0034]
In the case of the above embodiment, each control operation described above in the car navigation device 4 is realized as an application program of the car navigation device 4, for example.
[0035]
In the present embodiment having such a configuration, the position detector 8 for detecting the position of the vehicle is provided, the monitoring point for enabling the monitoring mode is stored in advance, and whether or not the vehicle has reached the monitoring point is determined. Judgment is made so that the monitoring mode is activated when it is determined that the vehicle has reached the monitoring point. According to this configuration, if the point to be parked by switching to the monitoring mode is stored as the monitoring point, it can be automatically switched to the monitoring mode only when necessary. And in the case of the said structure, when it does not want to switch to monitoring mode (point), since such a point is not registered as a monitoring point, it does not switch.
[0036]
Moreover, in the said Example, since it comprised so that it might be judged that the vehicle reached | attained the monitoring point when the vehicle was located in the circle | round | yen of radius R centering on the monitoring point, an accurate arrival determination is implement | achieved. be able to. In particular, in this case, the radius R is set to the sum of a fixed value R1 and a variable value R2 so that the length of the radius R is adjusted based on the position detection error of the vehicle. Since R2 is configured to be adjusted based on the position detection error of the vehicle, it is possible to more accurately determine whether to reach the monitoring point.
[0037]
Furthermore, in the said Example, it comprised so that it might be judged whether the vehicle stopped, it was judged that the vehicle was located in the circle | round | yen of radius R centering on the monitoring point, and it was judged that the vehicle stopped. In this case, since it is determined that the vehicle has reached the monitoring point, the arrival determination becomes more accurate.
[Brief description of the drawings]
FIG. 1 is a block diagram of a vehicle antitheft system showing an embodiment of the present invention. FIG. 2 is a block diagram of a car navigation device. FIG. 3 is a diagram for explaining determination of arrival at a monitoring point.
1 is a vehicle anti-theft system, 2 is a vehicle anti-theft alarm device, 3 is a management device, 4 is a first device (car navigation device), 5 is a second device (theft alarm reporting device), 6 is a mobile phone network, 7 is a control circuit (storage means, arrival determination means, control means, stop determination means), 8 is a position detector (position detection means), 9 is a map data input device, 10 is a group of operation switches, 19 is a mobile phone, 20 Indicates an external network.

Claims (4)

In a vehicle antitheft device comprising a monitoring mode for preventing vehicle theft,
Position detecting means for detecting the position of the vehicle;
Storage means for storing a monitoring point for enabling the monitoring mode by a switch operation of the owner of the vehicle ;
Arrival determination means for determining whether or not the vehicle has reached the monitoring point;
A vehicle antitheft device comprising: control means for enabling the monitoring mode when it is determined that the vehicle has reached the monitoring point. The arrival determination means is configured to determine that the vehicle has reached the monitoring point when the vehicle is positioned within a circle having a radius R centered on the monitoring point. The vehicle antitheft device according to claim 1. 3. The vehicle antitheft device according to claim 2, wherein the length of the radius R is adjusted based on a position detection error of the vehicle. Comprising stop determination means for determining whether or not the vehicle has stopped;
The arrival determining means is configured to determine that the vehicle has reached the monitoring point when the vehicle is located in a circle with a radius R centered on the monitoring point and the vehicle stops. 4. The vehicle antitheft device according to claim 2, wherein the vehicle antitheft device is provided.

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