JP3950033B2 - Anti-theft device and anti-theft system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anti-theft device and an anti-theft system suitable for use in construction machines, which prevent theft.
[0002]
[Prior art]
As a construction machine equipped with an anti-theft device, for example, if a predetermined password is not input from a key input device, the starter circuit does not operate even if the engine start operation is performed, and the engine start is prohibited. Things are known.
[0003]
[Patent Document 1]
Japanese Patent No. 3233573
[0004]
[Problems to be solved by the invention]
An operator operating a construction machine equipped with such an anti-theft device puts a note with the PIN number near the driver's seat and keeps the theft while looking at the note so as not to forget the PIN number. The unlocking device may be unlocked. In such a case, a thief who notices the presence of the memo may steal the construction machine.
[0005]
An object of the present invention is to provide an anti-theft device that makes it impossible for a thief who has obtained a maneuverable personal identification number to steal a vehicle and use it elsewhere, so that it is impossible to drive with the personal identification number obtained by the thief at the destination. And providing an anti-theft system.
[0006]
[Means for Solving the Problems]
(1) The anti-theft device according to claim 1 stores operable area information including position detecting means for detecting the current position of the vehicle, at least one operable area and a personal identification number associated with the operable area. The storage means, the input means for inputting the personal identification number, the current position of the vehicle detected by the position detection means and the operable area information stored in the storage means, and the current position of the vehicle is stored in the storage means. In the operable area included in the operable area information stored in the area, and the operable area including the personal identification number input from the input means and the current position of the vehicle (hereinafter referred to as the current position operable area). Is compared with the personal identification number associated with the vehicle, and if it is determined that the number input from the input means coincides with the personal identification number associated with the current position operable region, a vehicle driving permission signal is output. It is characterized by having a means.
(2) The invention according to claim 2 is the anti-theft device according to claim 1, further comprising a timing unit for timing the current date and time, and the operable area information stored in the storage unit is associated with the operable area. The control means further compares the current position of the vehicle detected by the position detection means with the operable area information stored in the storage means, and the current position of the vehicle is stored in the storage means. Compare the password number input from the input means with the password number associated with the current position operable area, and input from the input means. And the current date and time measured by the time measuring means and the validity period of the code number associated with the current position operable area are determined to be the same as the password associated with the current position operable area. If the current date and time is determined to be within the validity period of the password, a vehicle driving permission signal is output.
(3) The invention according to claim 3 is the antitheft device according to claim 1 or 2, wherein the display means for displaying the operable area information stored in the storage means and the operable area information are changed. When the determination unit determines whether the specific operation is performed by an authorized person and the determination unit determines that the specific operation is performed by a person authorized to change the operable area information, the operation stored in the storage unit Mode setting means for setting a setting change mode for permitting rewriting of the possible area information based on information input by the input means, and the control means sets the setting change mode by the mode setting means. The operable area information stored in the storage means is displayed on the display means based on the information input by the input means. It is characterized by rewriting.
(4) The invention of claim 4 is the anti-theft device according to any one of claims 1 to 3, further comprising communication means for transmitting / receiving data to / from the outside, and the control means is stored in the storage means. When the operable area update information for updating the stored operable area information is received from outside by the communication means, the operable area information stored in the storage means is updated with the operable area update information. And
(5) An anti-theft system according to the invention of claim 5 is provided with the anti-theft device according to claim 4 and a center server for transmitting operable area update information to the anti-theft device.
(6) The invention according to claim 6 is the anti-theft system according to claim 5, further comprising a personal computer for transmitting the operable area update information to the center server.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
1 to 6, an embodiment in which the present invention is applied to a construction machine antitheft device will be described. A description will be given using a hydraulic excavator as an example of a construction machine. FIG. 1 is an overall configuration diagram in the present embodiment. In the present embodiment, when the engine of the excavator 100 is started, the input password is verified, and engine start is permitted only when the verification result is good. As will be described in detail later, in the present embodiment, the personal identification number input when starting the engine is a personal identification number set in association with each operable region of the hydraulic excavator 100 set in advance.
[0008]
The excavator 100 can communicate with the center server 200 installed in a construction machine manufacturer (hereinafter referred to as a manufacturer) via the communication antenna 10 and the communication line network 250. Further, the excavator 100 receives a GPS signal from the GPS satellite 300 via the GPS antenna 20. Companies that own the excavator 100, such as companies that own the excavator 100, for example, companies to which the user who purchased the excavator 100 belongs, rental companies (contractors) for construction machinery, etc. (hereinafter referred to as users) A personal computer 150 is installed in the company). The center server 200 installed in the manufacturer and the personal computer 150 installed in the user company can communicate via the Internet network 400.
[0009]
FIG. 2 is a system block diagram of the excavator 100. The excavator 100 includes an engine 2 that drives the excavator 100, a starter motor 3 that starts the engine 2, a starter relay 7 that turns on and off the starter motor 3, an engine key switch 6, and an engine key switch 6. The key switch starter relay 5 for turning on / off the power from the battery 4 by the operation of, the control device 30, the monitor 40, and the input device 50 are provided. The starter relay 7 is interposed between the starter motor 3 of the engine 2 and the engine key switch starter relay 5. When the starter relay 7 is on, when the engine key switch starter relay 5 is turned on as the key switch 6 is operated, the starter motor 3 is driven and the engine 2 is started. On the other hand, when the starter relay 7 is off, even if the engine key switch 6 is operated, the starter motor 3 is not energized and the engine 2 is not started. The engine 2 drives a hydraulic pump (not shown) and controls the pump discharge oil with a control valve, thereby driving various actuators to perform excavation work, traveling, turning, and the like.
[0010]
The control device 30 includes a vehicle body motion determination unit 31, a power supply control unit 32, a communication control unit 34, a start condition storage unit 35, a time measurement unit 36, and a position calculation unit 37. A starter relay 7 and an input device 50 are connected to the vehicle body operation determination unit 31. The vehicle body motion determination unit 31 only when the PIN number assigned to the current position of the excavator 100 calculated by the position calculation unit 37 and the number input from the input device 50 match the conditions described later. An operation permission signal is output and the starter relay 7 is turned on. When the engine key switch 6 is operated at this time, the starter motor 3 is driven and the engine 2 is started. The monitor 40 displays the content input from the input device 50, and displays various information related to the excavator 100 such as the coolant temperature and the accumulated operation time.
[0011]
The engine key switch 6 is connected to the power control unit 32, and when the engine key switch 6 is turned on, the power control unit 32 turns on the power of the control device 30. The communication control unit 34 is connected to the communication antenna 10 and communicates with the center server 200 via the communication network 250 as will be described later. The time measuring unit 36 measures the date and time. The data of the time measuring unit 36 is used for comparison with a validity period of a password that will be described later. The position measurement unit 37 calculates the current position of the excavator 100 based on the GPS signal received by the GPS antenna 20. Data on the calculated current position is used when determining whether or not the excavator 100 is within an operable region where the operation of the excavator 100 described later is permitted.
[0012]
The hydraulic excavator 100 is assigned an identification ID that is assigned to each hydraulic excavator and identifies each hydraulic excavator. As will be described later, this identification ID is used as a number for identifying each hydraulic excavator when data is transmitted from the personal computer 150 to the hydraulic excavator 100 via the center server 200. Further, when the user company registers as a user with the construction machine manufacturer, a user ID and a password are issued from the construction machine manufacturer. As will be described later, the user ID and password are necessary for user authentication when a person in charge of management of the user company accesses the center server 200 from the personal computer 150.
[0013]
The hydraulic excavator 100 equipped with the anti-theft device of the above-described embodiment can set a plurality of operable areas where the operation of the hydraulic excavator 100 is permitted. A password number and a validity period of the password number can be set for each set operable area. These operable regions, passwords and valid periods (these are referred to as operable region information) are stored in the storage region of the start condition storage unit 35, and only when all of the following conditions are satisfied, the vehicle body motion determination unit 31 turns on the starter relay 7 and the engine 2 can be started.
(1) The measured current position of the excavator 100 is within the operable region stored in the start condition storage unit 35.
(2) The same number as the password set in the operable area is input from the input device 50.
(3) It is in the period of the valid period set for the above-mentioned operable area and the password.
[0014]
The operation area information of the excavator 100 can be set from the personal computer 150 by a construction machine manager in charge of the user company. The construction machine management manager accesses the center server 200 from the personal computer 150 via the Internet network 400 and makes settings. The screen of the personal computer 150 shown in FIG. 1 shows an image of a setting screen when the personal computer 150 accesses the center server 200. The screen of the personal computer 150 in FIG. 1 includes a setting frame for a personal identification number and a personal identification number use start period and an end period for each of a plurality of operable areas, and a frame indicating the plurality of operable areas on a map of Japan. Is displayed.
[0015]
The construction machine manager in the user company first determines the operable area of the excavator 100, and sets the password and the validity period of the password for the determined operable area. The operable area is set by designating a rectangular setting area that includes each prefecture on the screen of the personal computer 150 of FIG. For example, when an operable area is set in Tokyo, a rectangular area including Tokyo is selected and designated from the screen of the personal computer 150 in FIG. For example, the rectangular area including Tokyo includes a part of other prefectures adjacent to Tokyo, so that there is no problem even when working near the border of the prefecture. The same applies to other prefectures.
[0016]
The personal identification number is, for example, a combination of five digits, and is set by the personal computer 150 as described above. The validity period of the personal identification number is a start period during which the use of the personal identification number can be started and an end period when the use of the personal identification number ends, and the period during which the personal identification number can be used by setting from the personal computer 150 as described above. specify.
[0017]
When the setting is completed, the setting result is transmitted from the center server 200 to the excavator 100. The excavator 100 that has received the setting result stores the reception result in the start condition storage unit 35. Hereinafter, with reference to FIGS. 3 to 6, processing performed by the hydraulic excavator 100 and the anti-theft system equipped with the anti-theft device of the present embodiment will be described.
[0018]
FIG. 3 is a flowchart showing an engine start process of the excavator 100. This process is performed by a program executed by the vehicle body motion determination unit 31 of the control device 30. When the engine key switch 6 is turned on, this program is activated, and waits until a password is input to the input device 50 in step S101. If it is determined that the password has been input, the process proceeds to step S103, where the input password is temporarily stored as the input password, and the process proceeds to step S105. In step S105, the current position information of the excavator 100 calculated by the position calculation unit 37 is read, and the process proceeds to step S107. In step S107, it is determined whether or not the current position of the excavator 100 read in step S105 corresponds to any of the preset operable areas. If an affirmative determination is made in step S107, the process proceeds to step S109, and among a plurality of preset operable areas, an operable area including the current position of the excavator 100 (hereinafter referred to as a current position operable area). It is determined whether or not the set personal identification number (hereinafter referred to as the current location personal identification number) matches the input personal identification number. If an affirmative determination is made in step S109, the process proceeds to step S111, the current time is read from the time measuring unit 36, and the process proceeds to step S113. In step S113, it is determined whether or not the current time read in step S111 corresponds to the validity period of the password set in the current position operable area and the current position password (hereinafter referred to as the current position validity period). to decide. If an affirmative determination is made in step S113, the process proceeds to step S115, a signal for turning on the starter relay 7 is output, and the process ends.
[0019]
If a negative determination is made in any of step S107, step S109, and step S113, the process proceeds to step S117, and the process is terminated without outputting a signal for turning on the starter relay 7, that is, with the starter relay 7 turned off.
[0020]
According to the above-described processing, the current position of the excavator 100 corresponds to one of a plurality of operable areas included in the operable area information stored in the start condition storage unit 35, and the current position is operated. When the current position password set in the possible area matches the password entered from the input device 50 and the current time falls within the current position valid period, the starter relay 7 is turned on and the engine 2 Start is possible.
[0021]
FIG. 4 is a flowchart showing the operation of the personal computer 150 when the center server 200 is accessed from the personal computer 150 installed in the user company and the operable area information is set. In step S151, it waits until it connects to the center server 200 via the Internet network 400. If it is determined that the connection to the center server 200 has been established, the process proceeds to step S153, and waits until the user ID and password for specifying the user are input. If it is determined that the user ID and password are input, the process proceeds to step S155, the user ID and password input in step S153 are transmitted to the center server 200, and the process proceeds to step S157. In step S157, the process waits until an identification ID for specifying the excavator 100 to be set is input. If it is determined that the identification ID has been input, the process proceeds to step S159, the identification ID input in step S157 is transmitted to the center server 200, and the process proceeds to step S161. In step S161, it is determined whether the setting of the operable area information is a new input or a change of already input content. If it is determined that the input is a new input, the process proceeds to step S163, a request for a new input is transmitted to the center server 200, and the process proceeds to step S165. In step S165, the process waits until connection to the new input page of the center server 200 is established. If it is determined that the page is connected to the page for new input, the process proceeds to step S167 and waits until there is an input for new setting. If it is determined that a new setting has been input, the process proceeds to step S169.
[0022]
If it is determined in step S161 that the input has already been changed, the process proceeds to step S173, the change input request for the already input content is transmitted to the center server 200, and the process proceeds to step S175. In step S175, the process waits until a change input page of the center server 200 is connected. If it is determined that the page is connected to the change input page, the process proceeds to step S177 and waits until there is a change input of the already input content. If it is determined that there has been a change input, the process proceeds to step S169.
[0023]
In step S169, the content input in step S167 or step S177 is transmitted to the center server 200, the process proceeds to step S181, and it is determined whether or not the connection to the center server 200 is terminated. If a negative determination is made in step S181, the process returns to step S157. If a positive determination is made in step S181, the connection to the center server 200 is terminated and the process ends.
[0024]
According to the above-described processing, the operation area information of the excavator 100 can be set from the personal computer 150 installed in the user company. First, the center server 200 is accessed from the personal computer 150 via the Internet network 400. After the user authentication, the setting change target machine is specified by inputting the identification ID. After selecting whether a new input or a change of already input content, an operable area, a password, and a validity period of the password are set and transmitted to the center server 200. The center server 200 temporarily stores the received setting contents as will be described later, and then transmits it to the excavator 100 via the communication network 250.
[0025]
FIG. 5 is a flowchart showing the operation of the center server 200 that has received access from the personal computer 150 installed in the user company. In step S201, the process waits until there is an access from the personal computer 150. If it is determined that there is an access from the personal computer 150, the process proceeds to step S203 and waits until a user ID and a password are received. If it is determined that the user ID and password have been received, the process advances to step S205 to determine whether or not the received user ID and password match those registered (stored) in advance. If a negative determination is made in step S205, the process returns to step S203. If an affirmative determination is made in step S205, the process proceeds to step S207, and waits until an identification ID that identifies the excavator is received. If it is determined that the identification ID has been received, the process proceeds to step S209, and it is determined whether the request is a new setting input request or a request for changing the content already input. If it is determined that the request is a new setting input request, the process proceeds to step S211, a browsing screen prepared for new input is presented to the personal computer 150, and the process proceeds to step S213. In step S213, the process waits until new input content (operable area, personal identification number, validity period) is received. If it is determined that new input content has been received, the process proceeds to step S215.
[0026]
If it is determined in step S209 that the request has already been input, the process proceeds to step S221, the browsing screen prepared for change input is presented to the personal computer 150, and the process proceeds to step S223. In step S223, the process waits until the change input content (operable area, personal identification number, validity period) is received. If it is determined that the change input content has been received, the process proceeds to step S215. In step S215, the setting content received in step S213 or step S223 is stored, and the process proceeds to step S231. In step S231, the setting content received in step S213 or step S223 is transmitted to the excavator 100 together with the identification ID of the excavator 100 as operational area update information. In step S233, it is determined whether there is a connection termination request. If a negative determination is made in step S233, the process returns to step S207. If a positive determination is made in step S233, the process proceeds to step S235, the connection with the personal computer 150 is terminated, and the series of operations is terminated.
[0027]
According to the above-described processing, the center server 200 that has received access from the personal computer 150 installed in the user company transmits the setting contents (operable area, personal identification number, and personal identification number validity period) transmitted from the personal computer 150. In other words, the operable area update information can be transmitted to the excavator 100 via the communication network 250. After performing user authentication from the user ID and password received from the accessed personal computer 150, the identification ID is received and the setting change target machine is specified. After determining whether the request is a new input request or a request for changing the content already input, the setting contents of the operable area, the password, and the password validity period are received. The received setting contents are temporarily stored and transmitted to the excavator 100 via the communication line network 250.
[0028]
FIG. 6 is a flowchart showing the operation of the excavator 100 that has received the operable area update information from the center server 200 via the communication line network 250. This process is performed by a program executed by the vehicle body motion determination unit 31 of the control device 30. When the power from the battery 4 is supplied to the control device 30, this program is started. In step S121, the process waits until a signal transmitted from the center server 200 is received. If it is determined that the signal transmitted from the center server 200 has been received, the process proceeds to step S123, and it is determined whether or not the identification ID included in the received signal matches the identification ID of the own vehicle. If a negative determination is made in step S123, the process returns to step S121. If an affirmative determination is made in step S123, the process proceeds to step S125, and the operable area update information (operable area, code number, and validity period of the code number) that has received the operable area information stored in the start condition storage unit 35 is received. To complete the series of operations.
[0029]
Through the above-described processing, the excavator 100 stores in the start condition storage unit 35 the setting details of the operable area, the code number, and the validity period of the code number received from the center server 200.
[0030]
The hydraulic excavator 100 according to the embodiment described above includes the setting contents of the operable area, the personal identification number, and the validity period of the personal identification number set by the personal computer 150 installed in the user company, the center server 200, and the communication line. It can be transmitted to the excavator 100 via the network 250. The hydraulic excavator 100 that has received and stored this setting content is only used when the current position of the excavator 100, the current time, and the password entered by the operator all match the stored setting content. 2 can be started.
[0031]
The hydraulic excavator 100 according to the embodiment described above has the following effects.
(1) The engine 2 can be started only when the current position of the excavator 100, the current time, and the password entered by the operator all match the stored settings. Even if a thief who knows the security code steals the excavator 100 and takes it out of the operable area, the engine 2 cannot be started. Similarly, the engine 2 cannot be started even after the set effective period has passed. Thereby, starting of the hydraulic excavator 100 by a thief can be prevented, and security is high.
(2) A plurality of operable areas can be set, and a password and a validity period of the password can be set for each set operable area. Accordingly, when a rental company or the like rents the hydraulic excavator 100, if a plurality of operable areas are initially set, the hydraulic excavator 100 can be rented as it is to a plurality of borrowers without returning to the rental company. Can lend business efficiently. It is also possible to set an operable area including the construction machine management place of the user company. The person in charge of construction machine management in the user company can start the excavator 100 with the password set in the area including the company without performing any special operation on the excavator 100 that has returned to the construction machine management place. As a result, the inconvenience of not being able to start without knowing the password can be solved.
(3) The operable area of the excavator 100, the personal identification number, and the validity period of the personal identification number can be set via the center server 200 and the communication line network 250 from the personal computer 150 provided in the user company. As a result, the construction machine manager or the like does not bother to go under the hydraulic excavator and can set up efficiently. In addition, even when the rental company rents the hydraulic excavator 100 and the borrower makes an offer to extend the rental period, it is not necessary to go to the remote hydraulic excavator and it can be set up efficiently.
[0032]
In the hydraulic excavator 100 of the above-described embodiment, the operable area, the password, and the validity period are set from the personal computer 150 provided in the user company, but are not limited thereto. The setting may be made by the monitor 40 and the input device 50 connected to the control device 30 of the excavator 100. In this case, in step S115 in FIG. 3, from the state in which the engine 2 can be started, an operation that only a limited person such as a construction machine management manager knows or an operation for inputting a specific password (specifying these operations) A setting change mode of the operable area, the personal identification number, and the valid period, which can be shifted by the above. In this setting change mode, an input screen similar to the screen of the personal computer 150 shown in FIG. 1 may be displayed on the monitor 40 of the excavator 100 so that setting input can be performed from the input device 50. Thereby, the operable area information of the excavator 100 used in an area where the communication state is bad can be updated. In addition, since only a limited person who knows a specific operation can update, security against changes by third parties is high.
[0033]
The start of the engine 2 is prohibited by not turning on the starter relay 7 except when the current position of the excavator 100, the current time, and the password entered by the operator all match the stored settings. Although an example is shown, the present invention is not limited to this. For example, as described in Japanese Patent No. 3233573, the excavator 100 may be prevented from traveling by shutting off the pilot hydraulic circuit. Specifically, a switching valve (for example, a solenoid valve) is provided in the discharge circuit of the pilot hydraulic pump, and the switching valve is set to the communication position when all the starting conditions are satisfied, and in other cases, the switching valve is set. May be switched to the blocking position. When the switching valve is in the shut-off position, even if each operation member is operated, the attachment hydraulics, the respective attachments, and the turning actuator are not driven, thereby preventing theft.
[0034]
The code number has been described with an example of numbers, but it may be either a letter or a symbol, or a combination thereof, such as an ID number or a password that can be identified by the authorized person. That's fine. Instead of the in-vehicle communication control unit 34, a mobile phone, a personal digital assistant (PDA), or a mobile personal computer may be used. Further, the setting content may be transmitted directly from the personal computer 150 to the excavator 100 via the Internet network 400 or the communication line network 250 without providing the center server 200. Furthermore, instead of the personal computer 150, a personal digital assistant (PDA) or a mobile personal computer may be used. In this case, a construction machine manager or the like may transmit the setting content to the excavator 100 from a communication means connected to a personal digital assistant (PDA) or a mobile personal computer in the vicinity of the excavator 100.
[0035]
In the above-described embodiment and modifications thereof, the operable region that can be set is set in units of approximately prefectures, but is not limited thereto. It may be in units of municipalities, and an arbitrary range on the map displayed on the screen may be designated. Moreover, it is not limited to Japan. In the above-described embodiment and its modification, the operable area information includes the operable area, the password, and the validity period, but the present invention is not limited to this. A valid period may not be set. In the above-described embodiment and its modification, one code number and validity period are set for one operable area, but a plurality of code numbers and validity periods are set for one operable area. You may be able to do it. The above-described embodiments and modifications may be combined. In the above-described embodiments and modifications, the description has been made using a hydraulic excavator as a construction machine, but the present invention is not limited to this. Moreover, it is not restricted to construction machinery. The present invention can also be applied to various mobile objects such as a vehicle rented to a user such as a rental car. Furthermore, the present invention is not limited to the above-described embodiment as long as the characteristic functions of the present invention are not impaired.
[0036]
In each of the above embodiments and modifications thereof, the storage means corresponds to the start condition storage unit 35, the input means corresponds to the input device 50, the time measurement means corresponds to the time measurement unit 36, and the display means corresponds to the monitor 40. The communication means includes the communication antenna 10 and the communication control unit 34. The position detection means includes the GPS antenna 20 and the position calculation unit 372. The control means, the determination means, and the mode setting means are realized by programs executed by the vehicle body motion determination unit 31 and the vehicle body motion determination unit 31.
[0037]
【The invention's effect】
According to the present invention, only when the current position of the vehicle is within the settable operational area and the entered personal identification number matches the personal identification number associated with the operational area information. Driving is possible. As a result, even if a thief who has obtained a maneuverable PIN number steals the vehicle and tries to use it elsewhere, driving with the PIN number obtained by the thief is impossible at the destination.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of an embodiment in which the present invention is applied to a hydraulic excavator.
FIG. 2 is a system block diagram of the excavator 100 in FIG. 1;
FIG. 3 is a flowchart showing an engine start process of the excavator 100 in FIG. 1;
4 is a flowchart showing the operation of the personal computer 150 of FIG.
FIG. 5 is a flowchart showing the operation of the center server 200 of FIG.
6 is a flowchart illustrating an operation performed by the excavator 100 when the excavator 100 in FIG. 1 receives the setting content from the center server 200. FIG.
[Explanation of symbols]
2 Engine 3 Starter motor
5 Key switch starter relay 6 Engine key switch
7 Starter relay 10 Communication antenna
20 GPS antenna 30 Control device
31 Car body motion determination unit 32 Power supply control unit
34 Communication control unit 35 Start condition storage unit
36 Time measurement part 37 Position calculation part
40 monitor 50 input device
100 Excavator 150 Personal computer
200 Center server 250 Communication network
300 GPS satellite 400 Internet network

Claims (6)

Position detecting means for detecting the current position of the vehicle;
Storage means for storing operable area information including at least one operable area and a personal identification number associated with the operable area;
An input means for inputting a personal identification number;
The current position of the vehicle detected by the position detection means is compared with the operable area information stored in the storage means, and the current position of the vehicle is converted into the operable area information stored in the storage means. A password that is within the operable area and that is input from the input means and a password associated with the operable area including the current position of the vehicle (hereinafter referred to as the current position operable area); And the control means for outputting a driving permission signal for the vehicle when it is determined that the number input from the input means matches the personal identification number associated with the current position operable region. apparatus. The anti-theft device according to claim 1,
It further has a timing means for timing the current date and time,
The operable area information stored by the storage means further includes a validity period of a personal identification number associated with the operable area,
The control means compares the current position of the vehicle detected by the position detection means with the operable area information stored in the storage means, and the current position of the vehicle is stored in the storage means. A password number that is within the operable area included in the operable area information and that is input from the input means is compared with a password associated with the current position operable area, and is input from the input means. The current date and time counted by the time measuring means and the validity period of the password associated with the current position operable area. An anti-theft device characterized in that if a comparison is made and the current date and time is determined to be within the validity period of the personal identification number, a driving permission signal for the vehicle is output. The anti-theft device according to claim 1 or 2,
Display means for displaying the operable area information stored in the storage means;
Determining means for determining whether or not the operation is a specific operation by a person authorized to change the operable area information;
When the determination unit determines that the specific operation has been performed by a person authorized to change the operable region information, the operable region information stored in the storage unit is based on the information input by the input unit. And a mode setting means for setting a setting change mode that permits rewriting.
When the setting change mode is set by the mode setting unit, the control unit displays the operable area information stored in the storage unit on the display unit, and displays the information input by the input unit. An antitheft device characterized in that the operable area information stored in the storage means is rewritten based on the information. In the antitheft device according to any one of claims 1 to 3,
It further has a communication means for transmitting and receiving data with the outside,
When the control means receives the operable area update information for updating the operable area information stored in the storage means from the outside, the control means stores the operable area information stored in the storage means. An anti-theft device, which is updated with the operable area update information. An anti-theft device according to claim 4,
A theft prevention system comprising: a center server that transmits the operable area update information to the antitheft device. The anti-theft system according to claim 5,
The anti-theft system further comprising a personal computer that transmits the operable area update information to the center server.

Images