JP2001200665A - Abnormal use judging device for moving body and anti- theft system using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To judge the abnormal use of a moving body such as a vehicle and to prevent a theft. SOLUTION: When a door is unlocked by a prescribed mechanical action, a counter C stored in an immobilizer storage region 56 in relation to the collated immobilizer id is increased by one increment. When the counter C becomes a specified value or above, the drive of an engine is prohibited, and the use of the vehicle by a fraudulently copied key is prohibited. When the door is unlocked by a wireless means, it is judged whether the wireless ID used for unlocking the door and the collated immobilizer id are stored in relation to each other or not. If they are not related to each other, the counter C related to the collated immobilizer id is increased by one increment, and an indicator 58 is lighted when the counter C becomes the specified value or above. An authorized user can know such an abnormal state that a transponder chip 28 is stuck near an immobilizer antenna 54.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for judging abnormal use of a moving object and an anti-theft apparatus using the same, and more particularly, to a method in which a first predetermined signal is received or a predetermined mechanical operation is performed. An abnormal use determination apparatus for a moving object, comprising: door lock / unlock means for locking and unlocking a door of the moving object at times, and operation permission means for permitting operation of the moving object when a second predetermined signal is received. Further, the present invention relates to an anti-theft device for preventing the theft of a moving object using the same.

[0002]

2. Description of the Related Art Conventionally, a device for determining abnormal use of a moving object of this type receives a predetermined signal from a key having a built-in transponder chip for outputting a predetermined signal in response to an electromagnetic field generated by a vehicle. A device that permits the start of the engine when the engine is stopped, generates a weak electromagnetic field that is insensitive to normal key use while the engine is stopped, and when a predetermined signal is received with respect to this weak electromagnetic field, it is regarded as unauthorized use (For example, Japanese Patent Application Laid-Open No. 10-2)
No. 78743). In this device, it is assumed that a transponder chip is extracted from a key, and a vehicle is used by a key that has been illegally duplicated by being attached near a receiving unit that receives a predetermined signal from a transponder chip of the vehicle. Such a case is determined as unauthorized use. If it is determined that the vehicle has been illegally used, the use of the corresponding predetermined signal is prohibited, and the starting of the engine is prohibited to prevent the vehicle from being stolen.

[0003]

However, such a conventional abnormal use judging device requires an electromagnetic field output switching section for switching the intensity of the electromagnetic field to be generated, which complicates the configuration of the device itself. . Further, depending on the position where the extracted transponder chip is to be attached, it may not be possible to judge unauthorized use. In other words, this is a case where the transponder chip is attached to a position that is sensitive to a normal electromagnetic field but not sensitive to a weak electromagnetic field.

An object of the present invention is to determine an abnormal use of a moving object without complicating the configuration of the device. Another object of the present invention is to determine an abnormal use of a moving object with high accuracy. Another object of the present invention is to determine the possibility of abnormal use of a moving object. An object of the present invention is to prevent a mobile object from being stolen accurately.

[0005]

Means for Solving the Problems and Action / Effects Thereof The moving object abnormal use judging device and the anti-theft device using the same according to the present invention have the following means for at least partially achieving the above-mentioned object. I took it.

An apparatus for determining abnormal use of a moving object according to the present invention locks and unlocks a door of the moving object when a first predetermined signal is received or a predetermined mechanical operation is performed. Means for judging an abnormal use of a moving object, comprising means for permitting operation of the moving object when a second predetermined signal is received, wherein the unlocking of the door is controlled by the first predetermined signal. Unlock method determining means for determining whether the received unlock signal is received or the predetermined mechanical operation, and the determined unlock method and the second unlock method.
And an abnormal use determining means for determining abnormal use of the moving object based on the predetermined signal.

In the apparatus for judging abnormal use of a moving body according to the present invention, an unlocking method for determining whether the door is unlocked by receiving a first predetermined signal or by a predetermined mechanical operation, and permitting the operation of the moving body. The abnormal use of the moving object can be determined based on the second predetermined signal to be used. Here, the “abnormal use” includes use different from normal use such as unauthorized use, and also includes use that may possibly be used differently from normal use.

In the apparatus for judging abnormal use of a moving object according to the present invention, the abnormal use judging means judges that the unlocking method is performed by the mechanical predetermined operation for a predetermined number of times, and the second use is determined by the second operation. When the operation of the mobile unit is permitted by a signal, the unit may determine that the mobile unit is abnormally used. That is, abnormal use of the moving body is determined when the door is unlocked and used by the mechanical predetermined operation a predetermined number of times without receiving the first predetermined signal. This makes it possible to determine the use of the moving object by a predetermined mechanical operation using the illegally copied key.

Further, in the mobile object abnormal use determining apparatus according to the present invention, a plurality of signals as the first predetermined signal are provided;
A signal storage unit configured to store the plurality of signals and a plurality of signals as the second signal forming a pair in association with each other, wherein the abnormal use determination unit determines whether the unlock method is the unlock method. When it is determined that the first predetermined signal has been received, the first predetermined signal used when unlocking the door of the moving body and the first predetermined signal used when requesting permission for operation of the moving body are used. The second predetermined signal may be a means for determining abnormal use of the moving body based on whether or not the signal constitutes a pair of signals stored by the signal storage means. In this case, the use of the moving object by the first predetermined signal and the second predetermined signal that do not form a pair of signals can be determined as abnormal use. In the abnormal use determining apparatus for a moving body according to the aspect of the present invention, the abnormal use determining means includes the first predetermined signal used for unlocking the door of the moving body and a permission of operation of the moving body. Means for judging abnormal use of the moving body when the second predetermined signal used in obtaining the above does not constitute a pair of signals stored by the signal storage means a predetermined number of times. It can also be. This makes it possible to more accurately determine the abnormal use of the moving object.

In the moving body abnormal use judging apparatus according to the aspect of the present invention, the predetermined number of times is determined by receiving the first predetermined signal. The number of times that the door is unlocked by the mechanical predetermined operation expected to recover from the malfunction of the door unlock may be set to the number of times.

Further, in the moving body abnormal use judging device of the present invention, when the abnormal use judging means judges the abnormal use of the moving body, it is provided with a judgment result output means for outputting the judgment result. You can also. In this way, it is possible to know the abnormal use of the moving object and its possibility. As a method of outputting the determination result, various methods such as an output by voice, an output by displaying images and characters, and a lighting output of an indicator are included.

In addition, in the apparatus for judging abnormal use of a moving object according to the present invention, the moving object is an automobile, and the door lock / unlock means has a transmitter capable of transmitting the first predetermined signal, and the machine includes The operation permission means includes an electromagnetic field generating means for generating a predetermined electromagnetic field, and the second permission means is responsive to the generated electromagnetic field. It may be a means corresponding to a signal from a transponder chip that outputs a signal. In this way, abnormal use of the vehicle can be effectively determined.

The anti-theft device for a mobile object according to the present invention is an anti-theft device for preventing the theft of the mobile object. When the abnormal use of the moving body is determined by the abnormal use determining means of the apparatus, the abnormal use control means for prohibiting a predetermined operation of the moving body is provided.

In the anti-theft device for a mobile object according to the present invention,
When the abnormal use of the moving body is determined by the abnormal use determination device for the moving body of the present invention, the abnormal use control unit inhibits the predetermined operation of the moving body. That is, by prohibiting normal operations, theft of the moving object is prevented. Since the abnormal use determination device for a moving object of the present invention more appropriately determines the abnormal use of the moving object, it is possible to cope with the appropriate abnormal use of the moving object.

In the mobile object theft prevention apparatus according to the present invention, the abnormal use control means may be means for prohibiting the operation permission of the mobile body.

Further, in the mobile object antitheft device of the present invention, the abnormal use determining device is an abnormal use determining device having a signal storage means, and transmits the paired signals stored in the signal storage means. The storage signal addition / change means for adding or changing the storage signal may be provided, and the abnormal use control means may be means for prohibiting the addition or change of the paired signals by the storage signal addition / change means.
In this way, it is possible to prevent the abnormal use of the moving object from being changed to the normal use.

[0017]

Next, embodiments of the present invention will be described with reference to examples. FIG. 1 is a configuration diagram schematically showing a configuration of a vehicle antitheft device 30 according to one embodiment of the present invention. As shown, the vehicle anti-theft device 30 of the embodiment includes a signal generation IC built in the wireless key 22.
Wireless control module 40 that receives the wireless ID signal transmitted from
And an immobilizer control module 50 that outputs a drive permission signal for a vehicle engine based on an immobilid signal transmitted from the transponder chip 28 incorporated in the wireless key 22 and a control signal from the wireless control module 40. .

Although not shown, the wireless control module 40 and the immobilizer control module 50
And a microcomputer mainly. This microcomputer includes, in addition to a CPU, a ROM for storing a processing program, a RAM for temporarily storing data, an EEPROM for storing data, an input / output port, and the like.

The wireless control module 40 further includes a wireless antenna 42 for receiving a wireless ID signal transmitted from the signal generation IC 24 of the wireless key 22. Also, the RAM or EEPROM of the microcomputer provided in the wireless control module 40
M is provided with a wireless ID storage area 44 for storing wireless IDs for a plurality of keys. In addition,
A control signal to the door lock control module 60 is output from an output port of a microcomputer provided in the wireless control module 40.

The wireless control module 40 thus configured receives the wireless ID signal transmitted from the signal generation IC 24 of the wireless key 22 by the wireless antenna 42 and demodulates the received wireless ID signal to obtain a wireless ID. ID storage area 44
And outputs a control signal to a door lock control module 60 that controls locking and unlocking of the door when the wireless ID is stored. The immobilizer control module uses the wireless ID as a signal. Output to 50. The door lock control module 60 that has received the control signal unlocks the door when the door is locked and performs control such as blinking the hazard for the number of times indicating the unlock. When the door is unlocked, the door lock control module 60 locks and releases the hazard. Control such as blinking the number of times indicating the lock is performed.

The immobilizer control module 50 transmits an immobil id signal transmitted from the transponder chip 28 incorporated in the wireless key 22 in response to the electromagnetic field generating circuit 52 for generating a predetermined electromagnetic field. And an immobilizer antenna 54 for receiving. The transponder chip 28 incorporated in the wireless key 22 outputs an immobil id signal in response to a predetermined electromagnetic field generated by the electromagnetic field generating circuit 52. Therefore, the immobilizer control module 50
Responds to the transponder chip 28 incorporated in the wireless key 22 by generating a predetermined electromagnetic field in the electromagnetic field generation circuit 52,
The immobilizer id signal output from the receiver 8 is transmitted to the immobilizer antenna 54.
It can be received by. The RA of the microcomputer provided in the immobilizer control module 50 is
The M or EEPROM is provided with an immobilizer storage area 56 for storing a wireless ID, an immobilizer id, and a counter C assigned to each key in association with a plurality of keys. In addition, an input / output signal of a microcomputer of the immobilizer control module 50 includes a door open / close signal of the vehicle, a lock position signal indicating a locked state of the door, and the like. In addition, a drive signal to the indicator 58, a control signal to the engine control module 70, and the like are output from an output port of the microcomputer provided in the immobilizer control module 50.

The immobilizer control module 50 thus constructed generates an immobilizer id signal transmitted from the transponder chip 28 of the wireless key 22 in response to the generation of a predetermined electromagnetic field by the electromagnetic field generation circuit 52 and the generation of the electromagnetic field. Is received by the immobilizer antenna 54, and the immobilizer id obtained by demodulating the received immobilizer id signal is checked to see if it matches any of the immobilizer ids stored in the immobilizer storage area 56 and output from the wireless control module 40. A control signal is output to the engine control module 70 based on the wireless ID signal and the counter C. Engine control module 70 to which a control signal is input
Performs control to drive the engine in accordance with an operator's instruction when the control signal is an engine drive permission signal, and inhibits engine drive regardless of the operator's instruction when the control signal is an engine drive inhibition signal. Perform control.

It should be noted that the wireless key 22 has a signal generation I
A battery 26 as a power source for transmitting a wireless ID signal from the C24 is also provided. The wireless key 22 also includes a key body 21 that can be directly inserted into a keyhole of the door and rotated by a predetermined angle in a predetermined direction to lock or unlock the door.

Next, the operation of the vehicle antitheft device 30 of the embodiment configured as described above will be described. FIG. 2 is a flowchart illustrating a processing program executed by a computer included in the immobilizer control module 50. When the processing program is executed, the CPU of the computer firstly generates the signal I of the wireless key 22.
It is determined whether the wireless ID signal has been transmitted from C24 and the wireless control module 40 has verified the wireless ID (step S100). This judgment is
This can be performed by reading a signal output from the wireless control module 40 to the immobilizer control module 50. In the embodiment, this signal is used as the signal of the collated wireless ID when the wireless ID is collated by the wireless control module 40, and is used as the signal of the default value when the wireless ID is not collated by the wireless control module 40.

When the wireless control module 40 does not verify the wireless ID, it is determined whether the locked state of the door has changed from the locked state to the unlocked state (step S102), and the state of the door has been changed from the closed state. It is determined whether the state has changed to the open state (step S
104). In the embodiment, the determination process of the change of the door lock state is performed by reading the lock position signal, and the determination process of the change of the door state is performed by reading the door open / close signal.

When it is determined that the door has changed from the locked state to the unlocked state and it has been determined that the door has changed from the closed state to the open state, that is, a mechanical predetermined operation by the key body 21 of the wireless key 22 is performed. When the door is unlocked and opened by the operation, the electromagnetic field generation circuit 52
The immobilizer id received from the transponder chip 28 in response to a predetermined electromagnetic field generated by the immobilizer is received by the immobilizer antenna 54, and the immobilizer id obtained by demodulating the received immobilizer id signal is stored in the immobilizer storage area 56. A matching process is performed to determine whether any of the immobilization ids match (step S106). When the immobilid is collated, the immobilizer storage area 5 is associated with the collated immobilid.
The counter C stored in No. 6 is incremented (step S108), and the counter C corresponding to the collated immobilid is compared with a specified value (step S110). Here, the specified value is set when the door cannot be unlocked by a wireless ID signal transmitted from the signal generation IC 24 of the wireless key 22 due to a failure of the door lock control module 60 or a dead battery of the battery 26 of the wireless key 22. It is set as the number of times the door is unlocked by a predetermined mechanical operation by the key body 21 which is expected until the failure is repaired or the battery 26 is replaced, and it is determined according to the purpose and use form of the vehicle.

When the counter C is smaller than the specified value,
It is determined that the vehicle is not abnormally used, and the immobilizer is released, that is, an engine drive permission signal is output as a control signal to the engine control module 70 (step S11).
2) End the processing program.

On the other hand, when the value of the counter C is equal to or more than the specified value, it is determined that the vehicle is abnormally used, and registration of a new imobi id in the immobil storage area 56 and change of the registered imobi id are prohibited (step S114). ), Output abnormal use (step S116), determine that the vehicle is abnormally used, and terminate this routine without releasing the immobilizer. Since the immobilizer is not released, that is, the state in which the engine drive inhibition signal is output as the control signal from the engine control module 70 is maintained, the engine start can be inhibited and the abnormal use of the vehicle can be inhibited.

When it is determined in step S102 that the locked state of the door has not changed from the locked state to the unlocked state, or when it is determined in step S104 that the door has not changed from the closed state to the open state, Alternatively, when the immobilid is not collated in step S106,
This routine ends without releasing the immobilizer.

When the wireless ID is verified in step S100, the counter C stored in the immobilizer storage area 56 in relation to the verified wireless ID is reset (step S118), and the received immobilid signal is demodulated. A collation process is performed to determine whether the obtained imobi id matches one of the imobi ids stored in the immobil storage area 56 (step S120). When the immobilization id is collated, it is determined whether the collated immobilization id and the wireless ID collated in step S100 are stored in relation to the immobilization storage area 56 (step S122). . That is, it is determined whether or not the collation is based on the immobilid signal transmitted from the transponder chip 28 incorporated in the wireless key 22 that unlocks the door. Wireless ID and imobi id
If it is determined that are stored in association with each other, the processing after step S110 is performed. In this case, since the counter C has been reset, it is determined that the counter C is smaller than the specified value, and the immobilizer is released.
On the other hand, when it is determined that the wireless ID and the immobilid are not stored in association with each other, the door is unlocked based on the wireless ID signal transmitted from the signal generation IC 24 incorporated in the wireless key 22. Judges that the collation by the immobilid signal transmitted from the transponder chip 28 incorporated in the wireless key 22 used for unlocking has not been performed, and determines that there is a possibility that the vehicle is abnormally used. Perform In this case, the counter C associated with the collated immobilid is incremented, and the counter C is compared with a specified value.

Now, it is assumed that the transponder chip 28 is taken out of the wireless key 22 and is attached to the vicinity of the immobilizer antenna 54 of the immobilizer control module 50, thereby illegally duplicating the wireless key 22. When a legitimate user uses the wireless key 22 to wirelessly unlock the door and start the engine, the immobilid is collated by the transponder chip 28 attached near the immobilizer antenna 54 in step S120. At this time, the matched immobilid
Is not related to the wireless ID at the time of unlocking the door, the counter C related to the collated immobilid is incremented, and the value eventually exceeds the specified value. The possibility of abnormal use of the vehicle, ie, immobilizer antenna 54
The state where the transponder chip 28 is stuck in the vicinity can be known. Then, an appropriate treatment such as removing the attached transponder chip 28 can be performed. On the other hand, when the engine is started by unlocking the door by a predetermined mechanical operation using the illegally duplicated key, the immobilizer id is attached by the transponder chip 28 attached near the immobilizer antenna 54 in the process of step S106. Are collated. At this time, since the counter C related to the collated immobilid is incremented, the value of the counter C eventually exceeds the specified value and the immobilizer is not released, so that the operation of the vehicle can be prohibited. In addition, since new registration or change of immobilid is prohibited, subsequent use of the vehicle can be prohibited.

According to the vehicle antitheft device 30 of the embodiment described above, the abnormal use of the vehicle can be prohibited and the possibility of the abnormal use of the vehicle can be discovered beforehand. Moreover, when it is determined that the vehicle is abnormally used,
Since new registration or change of immobilid is prohibited, use of the vehicle other than the authorized wireless key 22 can be prohibited.

In the vehicle antitheft device 30 of the embodiment, the door is unlocked and opened by a predetermined mechanical operation of the key body 21 of the wireless key 22, and the immobilizer id is opened.
Is matched, the counter C associated with the matched immobilid is incremented, and the immobilizer is not released when the counter C exceeds a specified value. When the door is unlocked and opened by a predetermined mechanical operation by the user and the immobilizer id is verified, the immobilizer may not be immediately released.

In the vehicle antitheft device 30 of the embodiment, when the door is unlocked wirelessly and it is determined that the collated immobilid and the collated wireless ID are not related, the collation is performed. The counter C related to the immobilid is incremented, and when the counter C exceeds a specified value, the indicator 58 is turned on and the immobilizer is not released. ID
When it is determined that is not related, the indicator 58 may be turned on immediately. in this case,
It does not matter whether the immobilizer is released or not.

Further, in the vehicle anti-theft device 30 of the embodiment, it is determined whether or not the door is unlocked and opened by a predetermined mechanical operation of the key body 21 of the wireless key 22, and the immobilid is checked. Is determined, but it may be determined whether or not the immobilid has been collated without the wireless ID collation.

In the vehicle antitheft device 30 of the embodiment, when it is determined that the vehicle is abnormally used, new registration or change of the immobilid is prohibited, but may not be prohibited. Even if the counter does not reach the prescribed value, it is considered that there is a possibility of unauthorized use, and while the counter is counting, cancellation of the immobilizer is not prohibited, but only new registration or change may be prohibited. Furthermore, in the vehicle antitheft device 30 of the embodiment, the indicator 58 is turned on as the output of the abnormal use when it is determined that the vehicle is abnormally used. Output may be performed, an alarm may be sounded, or when a display screen is provided, an abnormal use of the vehicle may be displayed using characters or images.

Although the vehicle antitheft device 30 of the embodiment has been described as determining the abnormal use of the vehicle and preventing theft of the vehicle, the abnormal use of a moving object other than the vehicle, such as a ship or an aircraft, is determined. Needless to say, the present invention may be applied to prevent theft of a moving object other than a vehicle.

The embodiments of the present invention have been described with reference to the embodiments. However, the present invention is not limited to these embodiments, and various embodiments may be made without departing from the scope of the present invention. Of course, it can be carried out.

[Brief description of the drawings]

FIG. 1 is a configuration diagram schematically showing a configuration of a vehicle antitheft device 30 according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a process in an immobilizer control module 50;

[Explanation of symbols]

Reference Signs List 22 wireless key, 24 signal generation IC, 26 battery, 28 transponder chip, 30 vehicle anti-theft device, 40 wireless control module, 42 wireless antenna, 44 wireless ID storage area, 50
Immobilizer control module, 52 electromagnetic field generation circuit, 54 immobilizer antenna, 56 immobilizer storage area, 5
8 indicators, 60 door lock control module,
70 Engine control module.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E250 AA21 BB08 BB66 DD06 FF23 FF26 FF36 HH01 JJ03 JJ05 KK03 LL00 LL01 TT04 UU03 VV00

Claims (10)

[Claims] 1. A door lock / unlock means for locking and unlocking a door of a moving body when a first predetermined signal is received or a predetermined mechanical operation is performed, and a second predetermined signal is received. And an operation permission means for permitting the operation of the moving object when the operation of the moving object is determined. The unlocking of the door is performed by receiving the first predetermined signal or by the mechanical predetermined operation. An unlocking method determining means for determining whether the moving object is operated, and an abnormal use determining means for determining an abnormal use of the moving object based on the determined unlocking method and the second predetermined signal. Abnormal use determination device. 2. The abnormal use determining means determines that the unlocking method has been performed by the mechanical predetermined operation for a predetermined number of times, and that the operation of the moving body has been permitted by the second signal. 2. The abnormal use determination device for a moving body according to claim 1, wherein the device determines the abnormal use of the moving body. 3. The mobile object abnormal use determination device according to claim 1, wherein a plurality of signals as the first predetermined signal and a plurality of signals as the second signal paired with the plurality of signals. Signal storage means for storing in association with the signal, the abnormal use determining means, when the unlocking method determining means determines that the unlocking method is based on the reception of the first predetermined signal, the movement The first predetermined signal used when unlocking the body door and the second predetermined signal used when requesting permission to operate the moving body are stored by the signal storage means. An abnormal use determination apparatus for a moving body, which is means for determining abnormal use of the mobile body based on whether or not a pair of signals is configured. 4. The apparatus according to claim 1, wherein the abnormal use determining means is configured to determine the first predetermined signal used when unlocking the door of the moving body and the second predetermined signal used when requesting permission for operation of the moving body. 4. The abnormal use determination of a moving body according to claim 3, wherein the predetermined signal does not constitute a pair of signals stored by the signal storage means a predetermined number of times. apparatus. 5. The method according to claim 5, wherein the predetermined number of times is determined based on the mechanical unlocking of the door by the mechanical predetermined operation expected until the malfunction of the unlocking of the door due to the reception of the first predetermined signal. The abnormal use determination device for a moving body according to claim 2 or 4, wherein the number of times is set as the number of times. 6. The mobile object abnormal use determination according to claim 1, further comprising a determination result output unit that outputs a determination result when the abnormal use determination unit determines the abnormal use of the mobile object. apparatus. 7. The apparatus for determining abnormal use of a moving object according to claim 1, wherein the moving object is an automobile, and the door lock / unlock unit transmits the first predetermined signal. A means corresponding to a key having a transmitter capable of performing the mechanical predetermined operation, wherein the operation permission means includes an electromagnetic field generating means for generating a predetermined electromagnetic field, and the generated electromagnetic field An abnormal use determination device for a moving body, which is means for responding to a signal from a transponder chip which outputs the second predetermined signal in response to the signal. 8. An anti-theft device for preventing the moving object from being stolen, comprising: the abnormal use determining device for a moving object according to claim 1; and the abnormal use determining means provided in the abnormal use determining device. A mobile object theft prevention device comprising: an abnormal use control means for prohibiting a predetermined operation of the mobile body when it is determined that the mobile body is abnormally used. 9. The mobile object theft prevention device according to claim 8, wherein said abnormal use control means is means for prohibiting permission of operation of said mobile object. 10. The mobile object theft prevention device according to claim 8 or 9, wherein the abnormal use determination device is the abnormal use determination device according to claim 3 or 4, and is stored in the signal storage unit. Storage signal addition / change means for adding or changing the paired signals, wherein the abnormal use control means is means for inhibiting addition or change of the paired signals by the storage signal addition / change means. Body anti-theft device.