JP2007272362A - Locking system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking system capable of acquiring distance relevant information related to a distance and setting a predetermined order based on the distance relevant information. <P>SOLUTION: The locking system comprises an identification information transmitter 100 including a transmission part for transmitting a signal containing identification information; a receiving part 230 for receiving the identification information; a distance relevant information acquisition part 240 for acquiring distance relevant information related to the distance with the identification information transmitter; a storage part 220 for storing a plurality of operations of a locked device 300 in conformation to a predetermined order; and a locking device 200 including a control part 210 which prohibits use of the plurality of operations of the locked device when the identification information is not received, and permits use of the plurality of operations of the locked device stepwise, based on the distance relevant information and the predetermined order when the identification information is received. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a locking system having an identification information transmitter and a locking device.

  When a user uses a PC (Personal Computer) or the like to input highly confidential information or create a document, when the user leaves the PC, the data stored in the PC can be freely obtained by a third party. There is a need to prevent it from being viewed, downloaded, tampered with, or erased.

  Therefore, a security system that transmits ID information from a transmitter carried by the user, receives the ID information on the PC side, and permits use of the PC when the ID information matches that registered in advance. Is known (for example, Patent Document 1 and Patent Document 2).

  However, if there is a user within the range where ID information from the transmitter reaches, but there is no user in the vicinity of the PC, there is a problem that the security of the PC is released. It was. For example, while work such as wiring connection is performed on the back side of the PC, a situation has occurred in which the PC is freely used by others.

  Further, in an exhibition or the like, when one operator operates a plurality of PCs simultaneously and performs a predetermined display operation, only the operator may want to perform a predetermined input operation. However, if the operator is provided with a transmitter that transmits ID information, it is impossible to transmit ID information only to a specific PC, and a special operation is performed only on a predetermined PC by the movement of the operator. I couldn't allow it.

JP 2000-99187 (page 5-6, Fig. 2) Japanese Patent Laying-Open No. 2005-275897 (FIG. 1)

  Then, an object of this invention is to provide the locking system which made it possible to eliminate said malfunction.

  Another object of the present invention is to provide a locking system that can acquire distance-related information related to distance and make a difference in locking function based on the distance-related information.

  Furthermore, an object of the present invention is to provide a locking system that can acquire distance related information related to a distance and set a predetermined order based on the distance related information.

In order to solve the above problems, the locking system according to the present invention is:
An identification information transmitter having a transmitter for transmitting a signal including identification information;
A receiving unit that receives identification information, a distance-related information acquisition unit that acquires distance-related information related to a distance from the identification information transmitter, and a storage unit that stores a plurality of operations of the locked device in association with a predetermined order When the identification information is not received, the plurality of operations of the locked device are disabled, and when the identification information is received, the plurality of operations of the locked device are performed based on the distance related information and the predetermined order. And a locking device having a control unit that can be used in stages.

  In the locking system according to the present invention, it is preferable that the distance related information acquisition unit acquires the distance related information based on the reception intensity of the received signal from the identification information transmitter.

  Furthermore, in the locking system according to the present invention, the identification information includes the first identification information and the second identification information, and the distance related information acquisition unit is based on the reception status of the first and second identification information, It is preferable to acquire distance related information.

  Further, in the locking system according to the present invention, the locking device further includes a transmission unit for transmitting a signal including the reception confirmation information when the first identification information is received from the identification information transmitter, and the identification information transmitter Preferably further includes a reception unit for receiving the reception confirmation information, and the identification information transmitter preferably transmits the second identification information from the transmission unit when the reception unit receives the reception confirmation information.

  Furthermore, in the locking system according to the present invention, it is preferable that the transmission intensity of the signal including the reception confirmation information is set smaller than the transmission intensity of the signal including the first identification information.

  Furthermore, in the locking system according to the present invention, the receiving unit has a first antenna and a second antenna, and the distance related information acquisition unit is based on the reception status of the first and second antennas. It is preferable to acquire information.

In the locking system according to the present invention, the distance related information related to the distance between the identification information transmitter having a transmission unit that transmits a signal including identification information, the first reception unit that receives the identification information, and the identification information transmitter. A distance-related information acquisition unit to be acquired, a storage unit that stores a plurality of operations in a mobile phone in association with a predetermined order, and a plurality of operations are disabled when identification information is not received, and identification information is received. In this case, a control unit that enables a plurality of operations to be used in stages based on the distance-related information and a predetermined order, and a mobile phone that has a second receiving unit that receives an audio signal. And

  According to the present invention, the importance of security is determined based on the distance related information, and a plurality of operations can be used in stages according to the determined importance of security, so a predetermined ID code is transmitted. Depending on the distance between the tag and the like in the vicinity of the locked device or the base placed on the locked device itself, it is possible to perform the use restriction of the function of the locked device and the release of the use restriction in stages.

  Hereinafter, a locking system according to the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a schematic configuration of a locking system 1 according to the present invention.

  The locking system 1 includes a transmission tag 100, a base 200, and a PC terminal 300.

  The transmission tag 100 includes a first control unit 110 including a CPU and the like, a first storage unit 120 that stores a predetermined ID code, and transmits an ID code at a predetermined time interval (for example, every 2 seconds). And a transmission antenna 190 and the like. Further, although the transmission tag 100 is configured in a batch type on the assumption that the user always carries it, existing information such as a business card size card type, wristwatch type, mobile phone, PDA, and small PC terminal hanging from the neck is used. It may be a terminal device or the like, and its size, weight, form, etc. are not particularly limited.

  The base 200 includes a second control unit 210 including a CPU and the like, a second storage unit 220 that stores a predetermined ID code, an antenna 290 for receiving the ID code from the transmission tag 100, and a receiving unit 230, a radio wave intensity detector 240 for detecting the radio wave intensity of the received signal and transmitting the detection signal to the second controller 210, a second I / O 250, and the like. The second I / O 250 is an interface for connecting to a PC terminal 300 to be described later, and is configured as a USB interface in this example, but is not limited thereto.

  The PC terminal 300 includes a third control unit 310 including a CPU and the like, an OS, various application software, a third storage unit 320 for storing various data, an operation unit 330 including a keyboard and a mouse, The display unit 340 includes a liquid crystal display, a third I / O 350, a system bus 360, and the like. The third I / O 350 includes at least an interface for connecting to the second I / O 250 of the base 200.

  FIG. 2 is a diagram illustrating a processing flow in the transmission tag 100.

  First, the first control unit 110 of the transmission tag 100 acquires the ID code stored in the first storage unit 120 and transmits an ID signal including the ID code from the transmission unit 130 (S1). Next, the first control unit 110 measures a predetermined time (for example, 2 seconds) (S2), and performs the operation of S1 again.

  That is, the transmission tag 100 continues to repeatedly transmit an ID signal including an ID code every predetermined time.

  FIG. 3 is a diagram showing a processing flow in the base 200.

  When the processing flow shown in FIG. 3 is started, the base 200 is connected to the PC terminal 300, and the base 200 is disposed in the vicinity (for example, within 10 cm) of the display unit 340 of the PC terminal 300. . Further, in the PC terminal 300, application software for restricting the function of the PC terminal 300 and releasing the restriction is installed and activated in the second storage unit 320 in advance according to the control signal from the base 200. It shall be.

  First, the second control unit 210 of the base 200 transmits a first control signal for locking the display unit 340 and the operation unit 330 of the PC terminal 300 to the PC terminal 300 via the second I / O 250 (S10). When the third I / O 350 of the PC terminal 300 receives the first control signal from the second I / O 250 of the base 200, the third I / O 350 receives the third control signal based on the application software stored in the second storage unit of the PC terminal 300. The control unit 310 performs control to lock the display unit 340 and the operation unit 330.

  Locking the display unit 340 means that nothing is displayed on the display unit 340 or a screen saver indicating that the display unit 340 is locked is displayed. Therefore, when the display unit 340 is locked, even if any application software is operating on the PC terminal 300, the user cannot visually recognize the state.

  In addition, locking the operation unit 330 means that the control unit 310 does not accept an input from the operation unit 330. Therefore, when the operation unit 330 is locked, no information can be input to the PC terminal 300 even if the user operates the operation unit 330.

  Next, in the second control unit 210, the receiving unit 230 acquires an ID code from the received ID signal, compares the ID code with a registered ID code stored in advance in the second storage unit 220, and receives the received ID code. Is determined to match the registered ID code (S11).

  In S11, when the received ID code does not match the registered ID code, the second control unit 210 outputs a first control signal for locking the display unit 340 and the operation unit 330 of the PC terminal 300 to the second I / O. It transmits to PC terminal 300 via O250 (S12). When the third I / O 350 of the PC terminal 300 receives the first control signal from the second I / O 250 of the base 200, the third I / O 350 receives the third control signal based on the application software stored in the second storage unit of the PC terminal 300. The control unit 310 performs control to lock the display unit 340 and the operation unit 330.

  In S11, when the received ID code matches the registered ID code, the second control unit 210 then acquires the radio wave intensity signal of the received signal from the radio wave intensity detection unit 240 and stores it in the storage unit 220 in advance. It is determined whether or not the threshold value is equal to or greater than the predetermined threshold value (S13).

In S13, when the signal strength signal is less than the threshold value (that is, when the transmission tag is not located near the base 200), the second control unit 210 releases the lock of the display unit 340 of the PC terminal 300. A control signal is transmitted to the PC terminal 300 via the second I / O 250 (S14), and a third control signal for locking the operation unit 330 is also transmitted to the PC terminal 300 via the second I / O (S15). When the third I / O 350 of the PC terminal 300 receives these second and third control signals from the second I / O 250 of the base 200, it is based on the application software stored in the second storage unit of the PC terminal 300. Then, the third control unit 310 performs control to release the display unit 340 and lock the operation unit 330. Thereafter, the second control unit 210 of the base 200 measures a predetermined time (for example, 2 seconds) (S17), and performs the operation of S11 again.
The second control signal and the third control signal are made into one control signal, and based on this one signal, the PC terminal 300 unlocks the display unit 340 and locks the operation unit 330. Also good.

  By releasing the lock of the display unit 340, if any application software is operating on the PC terminal 300, the user can visually recognize the state.

  In S13, when the radio wave intensity signal is equal to or greater than the threshold value (that is, when the transmission tag is located near the base 200), the second control unit 210 locks the display unit 340 and the operation unit 330 of the PC terminal 300. The fourth control signal to be canceled is transmitted to the PC terminal 300 via the second I / O 250 (S16). When the third I / O 350 of the PC terminal 300 receives this fourth control signal from the second I / O 250 of the base 200, the display unit is based on the application software stored in the second storage unit of the PC terminal 300. 340 and control to unlock the operation unit 330 are performed. Thereafter, the second control unit of the base 200 measures a predetermined time (for example, 2 seconds) (S17), and performs the operation of S11 again.

  When the user carrying the transmission tag 100 that transmits a predetermined ID code approaches the vicinity of the base 200 by executing the processing flow shown in FIGS. 2 and 3, both the display unit 340 and the operation unit 330 are locked. Is released, and the PC terminal 300 can perform a normal operation. However, when the user carrying the transmission tag 100 that transmits the predetermined ID code is at a position away from the base 200, only the lock of the display unit 340 is released and the screen of the display unit 340 of the PC terminal 300 is visually recognized. Even though it can be performed, the operation unit 330 cannot be used, and thus normal operations cannot be performed on the PC terminal 300. Furthermore, when the user carrying the transmission tag 100 that transmits a predetermined ID code is not within the reception range of the base 200, both the display unit 340 and the operation unit 330 are locked, and the PC terminal 300 is used at all. It is kept in a state where it cannot.

  Thus, in this example, a function that can be used in the PC terminal 300 depending on whether or not the transmission tag 100 is in the vicinity of the base 200 by using the radio wave intensity signal as information related to the distance. It is configured so that it can be selected step by step. That is, when the transmission tag 100 that transmits a predetermined ID code is present in the vicinity of the base 200 (for example, within 50 cm), a function having a predetermined priority and a high importance of security (for example, use of the operation unit 330). If the transmission tag 100 that transmits the predetermined ID code exists within the reception range of the base 200 but does not exist in the vicinity, a function with a low security importance (for example, the display unit 340) Use)) to allow use. Therefore, as shown in FIG. 3, the second control unit 210 has a high security importance (the radio wave intensity signal is greater than or equal to a threshold value) and a low security importance (the radio wave intensity signal is less than the threshold value) ) And a predetermined control signal is transmitted to the PC terminal 300 so as to permit the use of the function in the PC terminal 300 step by step according to the determined importance of security.

  FIG. 4 is a diagram showing a correspondence relationship between the functions of the PC terminal 300 stored in advance in the second storage unit 220 and the importance of the security.

  In the example of FIG. 3, the second control unit 210 has explained the use of the display unit 340 and the operation unit 330 as the functions of the PC terminal 300. However, the various functions of the PC terminal 300 as shown in FIG. The importance level can be set, and locking and unlocking can be performed accordingly.

  Further, in the example of FIG. 3, the second control unit 210 acquires distance-related information at a two-level level as to whether or not the radio wave intensity signal is equal to or greater than the threshold value. It is also possible to set multiple security importance levels.

  In the locking system 1, the base 200 may be configured as a part of the PC terminal 300.

  FIG. 5 is a diagram showing a schematic configuration of another locking system 2 according to the present invention.

  The locking system 2 includes a transmission tag 102, a base 202, and a PC terminal 300.

  The transmission tag 102 includes a first control unit 110 including a CPU and the like, a first storage unit 120 that stores a predetermined ID code, an ID code and transmission / reception at a predetermined time interval (for example, every 2 seconds) The first transmission / reception unit 132 for transmitting the medium code, the transmission / reception antenna 190, and the like are included. Instead of the transmission / reception antenna 190, a transmission-dedicated antenna and a reception-dedicated antenna may be provided separately.

  The base 202 includes a second control unit 210 including a CPU and the like, a second storage unit 220 that stores a predetermined ID code, an ID code from the transmission tag 102, and a transmission / reception code and ID reception From the antenna 290 and the second transmitting / receiving unit 232 for transmitting the medium code, the radio wave intensity detecting unit 240 for detecting the radio wave intensity of the received signal and transmitting the detection signal to the second control unit 210, the second I / O 250, and the like Composed. The second I / O 250 is an interface for connecting to the PC terminal 300 and is configured as a USB interface in this example, but is not limited thereto. The antenna 290 is a transmission / reception antenna that is used for both reception of an ID code and reception of a code. However, instead of the antenna 290, a reception-only antenna that receives an ID code and a transmission-only antenna that transmits a reception code. An antenna may be provided separately.

  Here, as a characteristic configuration, the transmission intensity at which the second transmission / reception unit 232 of the base 202 transmits a signal including the ID receiving code is a signal including the ID code of the first transmission / reception unit 132 of the transmission tag 102. Is set to be lower than the transmission intensity for transmitting. That is, only when the transmission tag 102 is located near the base 202 (for example, within 50 cm), the transmission tag 102 is set to be able to receive a signal including the ID receiving code from the base 202. Instead of such a setting, for example, the reception function of the transmission tag 102 can be lowered by lowering the reception function of the first transmission / reception unit 132 of the transmission tag 102.

  Since the PC terminal 300 is the same as that shown in FIG. 1, its description is omitted here.

  FIG. 6 is a diagram showing a processing flow in the transmission tag 102.

  First, the first control unit 110 of the transmission tag 102 determines whether or not the first transmission / reception unit 132 has received an ID reception code to be described later from the base 202 (S20).

  In S20, when the ID receiving code is not received, the first control unit 110 acquires the ID code stored in the first storage unit 120 and includes the ID code from the first transmission / reception unit 132. The ID signal is transmitted (S21). Next, the first control unit 110 measures a predetermined time (for example, 2 seconds) (S23), and performs the operation of S20 again.

  In S <b> 20, when the ID receiving code is received, the first control unit 110 displays the ID code stored in the first storage unit 120 and the transmission / reception code stored in the first storage unit 120. Obtaining and transmitting a signal including the ID code and the transmitting / receiving code from the first transmitting / receiving unit 132 (S22). Next, the first control unit 110 measures a predetermined time (for example, 2 seconds) (S23), and performs the operation of S20 again.

  That is, when the ID tag receiving code is not received from the base 202, the transmission tag 102 repeatedly transmits the ID signal including the ID code every predetermined time and receives the ID receiving code from the base 202. In this case, the signal including the ID code and the transmitting / receiving code is repeatedly transmitted every predetermined time.

  FIG. 7 is a diagram showing a processing flow in the base 202 and the PC terminal 300.

  When the processing flow shown in FIG. 7 is started, the base 202 is connected to the PC terminal 300, and the base 202 is disposed in the vicinity (for example, within 10 cm) of the display unit 340 of the PC terminal 300. . Furthermore, in the PC terminal 300, application software for restricting and releasing the functions of the PC terminal 300 is installed in the second storage unit 320 in advance and activated in accordance with a control signal from the base 202. It shall be.

  First, the second control unit 210 of the base 202 transmits a predetermined control signal to the PC terminal 300 via the second I / O 250, and locks the display unit 340 and the operation unit 330 of the PC terminal 300 (S30). .

  Next, in the second control unit 210, the second transmitting / receiving unit 232 acquires the ID code from the received ID signal, compares it with the registered ID code stored in advance in the second storage unit 220, and receives the ID code. It is determined whether or not the ID code matches the registered ID code (S31).

  If the received ID code does not match the registered ID code in S31, the second control unit 210 transmits a predetermined control signal to the PC terminal 300 via the second I / O 250, and the display unit of the PC terminal 300 340 and the operation unit 330 are locked (S32). Thereafter, the second control unit 210 measures a predetermined time (for example, 2 seconds) (S38), and performs the operation of S31 again.

  In S31, when the received ID code matches the registered ID code, the second control unit 210 acquires the ID receiving code stored in the second storage unit 220, and performs the second transmission / reception. The signal including the ID receiving code is transmitted from the unit 232 (S33).

  Next, the second control unit 210 determines whether or not the second transmitting / receiving unit 232 has received a transmission / reception code from the transmission tag 102 (S34).

  In S34, when the transmission / reception code is not received, the second control unit 210 transmits a predetermined control signal to the PC terminal 300 via the second I / O 250, and unlocks the display unit 340 of the PC terminal 300. (S35) and the operation unit 330 is locked (S36). Thereafter, the second control unit 210 measures a predetermined time (for example, 2 seconds) (S38), and performs the operation of S31 again.

  In S34, when the transmission / reception code is received, the second control unit 210 transmits a predetermined control signal to the PC terminal 300 via the second I / O 250, and the display unit 340 and the operation unit 330 of the PC terminal 300 are transmitted. Is unlocked (S37). Thereafter, the second control unit 210 measures a predetermined time (for example, 2 seconds) (S38), and performs the operation of S31 again.

  When the user carrying the transmission tag 102 that transmits the predetermined ID code approaches the vicinity of the base 200 by executing the processing flow shown in FIG. 6 and FIG. Therefore, both the display unit 340 and the operation unit 330 are unlocked, and the PC terminal 300 can perform a normal operation. However, if the user carrying the transmission tag 102 that transmits the predetermined ID code is at a position away from the base 202, the base 202 can receive the ID code from the transmission tag 102, but cannot receive the transmission / reception code. Therefore, since only the lock of the display unit 340 is released and the screen of the display unit 340 of the PC terminal 300 can be visually recognized, the operation unit 330 cannot be used. It is not possible. Further, when the user carrying the transmission tag 102 that transmits the predetermined ID code is not within the reception range of the base 202, both the display unit 340 and the operation unit 330 are locked and the PC terminal 300 is used at all. It is kept in a state where it cannot.

  As described above, in this example, the ID receiving code is used as the information related to the distance, and can be used in the PC terminal 300 depending on whether or not the transmission tag 102 is in the vicinity of the base 202. It is configured so that functions can be selected in stages. That is, when the transmission tag 102 exists in the vicinity of the base 202 (for example, within 50 cm), the use of a function with a high security importance level (for example, use of the operation unit 330) that is in a predetermined order is permitted and transmitted. When the tag 102 exists in the reception range of the base 202 but does not exist in the vicinity, the use of a function with low security importance (for example, use of the display unit 340) is permitted. Therefore, as shown in FIG. 7, the second control unit 210 has a high security importance (reception of a registration ID code and a transmission / reception code) and a low security importance (registration ID code) based on the radio wave intensity signal. And a predetermined control signal is transmitted to the PC terminal 300 so as to permit the use of the function in the PC terminal 300 step by step according to the determined importance of security.

  In the locking system 2, the base 202 may be configured as a part of the PC terminal 300.

  FIG. 8 is a diagram showing a schematic configuration of still another locking system 3 according to the present invention.

  The locking system 3 includes a transmission tag 100, a base 200, a PC terminal 302, and a second base 400.

  Since the transmission tag 100 and the base 200 are the same as those shown in FIG. 1, the description thereof is omitted here.

  The PC terminal 302 includes a third control unit 310 including a CPU, an OS, various application software, a third storage unit 320 for storing various data, an operation unit 330 including a keyboard and a mouse, The display unit 340 includes a liquid crystal display, a third I / O 350, a system bus 360, a third LAN adapter 370, and the like. The third I / O 350 includes at least an interface for connecting to the second I / O 250 of the base 200.

  The second base 400 includes a fourth control unit 410 including a CPU and the like, an antenna 490 for receiving an ID code from the transmission tag 100, a fourth reception unit 430, a fourth LAN adapter 470, and the like. .

  Since the PC terminal 302 and the second base 400 are connected via the LAN cable 500 so that various types of data can be transmitted and received, the second control unit 210 of the base 200 includes the transmission tag 100 in the second base 400. It is possible to acquire information indicating that the ID code has been received from the PC terminal 302.

  FIG. 9 is a diagram illustrating an arrangement example of the base 200, the PC terminal 302, and the second base 400.

  The LAN cable 500 is wired in the predetermined room 510, the base 200 and the PC terminal 302 are disposed on the desk 520, and the second base 400 is disposed in the vicinity of the door 511 in the room 510. The base 200 is connected to the USB interface of the PC terminal 302. FIG. 9 shows the receivable range 530 of the base 200 and the receivable range 540 of the second base 400.

  When the user carrying the transmission tag 100 enters the room 510 from the door 511, the transmission tag 100 first enters the receivable range 540 of the second base 400, and the base 200 can be received when the user approaches the vicinity of the PC terminal 302. It is configured to enter the range 530. That is, when the second base 400 receives the ID code from the transmission tag, the transmission tag 100 that transmits the predetermined ID code is located far from the PC terminal 302, and the base 200 is the ID from the transmission tag. When the code is received, the transmission tag 100 that transmits the predetermined ID code is located in the vicinity of the PC terminal 302. Therefore, the reception states at the base 200 and the second base 400 can be used as information regarding the distance between the transmission tag 100 and the PC terminal 302.

  Since the processing flow in the transmission tag 100 in the locking system 3 is the same as the processing flow shown in FIG. 2, the description thereof is omitted here.

  FIG. 10 is a diagram showing a processing flow in the base 200 and the PC terminal in the locking system 3.

  When the processing flow shown in FIG. 10 is started, the base 200 is connected to the PC terminal 300, and the base 200 is disposed in the vicinity (for example, within 10 cm) of the display unit 340 of the PC terminal 302. . Further, it is assumed that the PC terminal 302 and the second base 400 are connected to the LAN cable 500 and are set in a state where various data can be transmitted and received between them. Further, in the PC terminal 302, application software for restricting the function of the PC terminal 302 and releasing the restriction in accordance with a control signal from the base 200 is installed and activated in advance in the second storage unit 320. It shall be.

  First, the second control unit 210 of the base 200 transmits a predetermined control signal to the PC terminal 302 via the second I / O 250, and the PC terminal 302 locks the display unit 340 and the operation unit 330 (S40). ).

  Next, the second control unit 210 obtains an ID code from the ID signal received by the fourth receiving unit 430 of the second base 400 and compares it with a registered ID code stored in advance in the second storage unit 220. Then, it is determined whether or not the received ID code matches the registered ID code (S41). That is, it is determined whether or not the transmission tag 100 exists within the receivable range 540 of the second base 400.

  When the received ID code does not match the registered ID code in S41, the second control unit 210 transmits a predetermined control signal to the PC terminal 302 via the second I / O 250, and the display unit of the PC terminal 302 340 and the operation unit 330 are locked (S42). Thereafter, the second controller 210 measures a predetermined time (for example, 2 seconds) (S47), and performs the operation of S41 again.

  In S41, when the received ID code matches the registered ID code, the second control unit 210 then acquires the ID code from the received ID signal by the receiving unit 230 of the base 200 and stores the second ID code in the second storage. A comparison is made with a registered ID code stored in advance in the unit 220, and it is determined whether or not the received ID code matches the registered ID code (S43). That is, it is determined whether or not the transmission tag 100 exists within the receivable range 530 of the base 200.

  When the received ID code does not match the registered ID code in S43, the second control unit 210 transmits a predetermined control signal to the PC terminal 302 via the second I / O 250, and the display unit of the PC terminal 302 The lock of 340 is released (S44) and the operation unit 330 is locked (S45). Thereafter, the second controller 210 measures a predetermined time (for example, 2 seconds) (S47), and performs the operation of S41 again.

  When the received ID code matches the registered ID code in S43, the second control unit 210 transmits a predetermined control signal to the PC terminal 302 via the second I / O 250, and the display unit of the PC terminal 302 340 and the operation unit 330 are unlocked (S46). Thereafter, the second controller 210 measures a predetermined time (for example, 2 seconds) (S47), and performs the operation of S41 again.

  When the processing flow shown in FIG. 2 and FIG. 10 is executed, a user carrying the transmission tag 100 that transmits a predetermined ID code is present near the base 200 (within the receivable range 530). Both the unit 340 and the operation unit 330 are unlocked, and the PC terminal 302 can perform a normal operation. However, when the user carrying the transmission tag 100 that transmits the predetermined ID code is present near the second base 400 (within the receivable range 540) away from the PC terminal 302, only the lock of the display unit 340 is present. Even if the screen of the display unit 340 of the PC terminal 302 can be viewed, the operation unit 330 cannot be used, and normal operations cannot be performed on the PC terminal 302. Furthermore, when the user carrying the transmission tag 100 that transmits the predetermined ID code is not within the reception range of the base 200 and the second base 400, both the display unit 340 and the operation unit 330 are locked, and the PC terminal The state where 302 cannot be used at all is maintained.

  In this way, in this example, using the reception states at a plurality of bases as information related to the distance, whether or not the transmission tag 100 is in the vicinity of the base 200 or whether it is in the vicinity of the second base 400 Depending on whether or not, the function that can be used in the PC terminal 302 can be selected step by step. That is, when the transmission tag 100 that transmits a predetermined ID code is present in the vicinity of the base 200 (for example, within 50 cm), a function having a predetermined priority and a high importance of security (for example, use of the operation unit 330). When the transmission tag 100 that transmits a predetermined ID code exists in the vicinity of the second base 400, the use of a function with low security importance (for example, use of the display unit 340) is permitted. Set to do. Therefore, as shown in FIG. 10, the second control unit 210 has a high security importance (in the vicinity of the base 200) and a low security importance based on reception states at a plurality of bases (or antennas) (first 2) (a vicinity of the base 400) is determined, and a predetermined control signal is transmitted to the PC terminal 302 so as to permit the use of the function in the PC terminal 302 step by step according to the determined importance of security.

  In the locking system 3, the base 200 may be configured as a part of the PC terminal 302.

  In the locking system 3, the two levels of security importance are determined using two bases. However, more bases are arranged in stages, and further levels of security importance are set. You can also.

  Further, in the locking system 3, the second base 400 is connected to the PC terminal 302 via the LAN cable 500, but the second base 400 may be directly connected to the base 200. In addition, the second base can be configured with only the receiving antenna 490. In the locking system 3, the ID signal received by the second base 400 is transmitted to the base 200, and the second base 400 outputs a control signal to the PC terminal 302. The second base may be configured to output the control signal without transmitting the ID signal to the base 200. In this case, the PC terminal 302 performs function restriction and restriction release based on control signals transmitted from the base 200 and the second base 400.

  In the first to third locking systems, the base 200, the base 202, and the base 400 transmit control signals to the PC terminal 300 and the PC terminal 302 every predetermined time. The terminal 302 may measure a predetermined time and receive a control signal from the base 200, the base 202, and the base 400 every time the predetermined time elapses. In this case, the base 200, the base 202, and the base 400 always receive ID signals from the transmission tag 100 and the transmission tag 102, and send control signals in response to requests from the PC terminal 300 and the PC terminal 302. Make it ready for output. Furthermore, the base 200, the base 202, and the base 400 output a signal indicating only whether the received ID code matches the registered ID code as a control signal, and the PC terminal 300 and the PC terminal 302 respond to the signal. You may make it perform the restriction | limiting of a function, and cancellation | release of a restriction | limiting. Furthermore, the PC terminal 300 and the PC terminal 302 also determine whether the received ID code and the registered ID code match, and the base 200, base 202, and base 400 only receive the ID code. Also good.

  FIG. 11 shows a schematic configuration of still another locking system 4 according to the present invention.

  The locking system 4 includes a clock 104 and a mobile phone 700 that function as an identification information transmitter. Further, the mobile phone 700 includes an authentication block 204 and a telephone function block 600. In the locking system 4, for example, when the mobile phone 700 is located within a range where the ID code can be received from the watch 104 attached to the left hand (for example, within 50 cm), all the functions of the mobile phone 700 can be used. However, the cellular phone 700 is configured so that only a limited function can be used at a place away from the watch 104. That is, for example, when a user who owns the mobile phone 700 lends a mobile phone to another person, the user moves away from the clock 104, so that only a limited function (for example, a call function) can be used. It becomes. With this configuration, even when the mobile phone 700 has a wallet function or a credit function, it is possible to easily prevent a person other than the owner from using a function with high security importance. Become.

  The clock 104 includes a first control unit 110 configured to include a CPU, a first storage unit 120 that stores a predetermined ID code, and transmits an ID code at a predetermined time interval (for example, every 2 seconds). The transmission unit 130 includes a transmission antenna 190, a time measuring unit 140, a first display unit 150 for displaying the time measured by the time measuring unit, and the like. The watch 104 has an arm mounting portion for mounting on an arm such as a metal or leather band.

  The authentication block 204 of the mobile phone 700 includes a second control unit 210 configured to include a CPU, a second storage unit 220 that stores a predetermined ID code, and an ID code from the transmission tag 100 The antenna 290, the receiving unit 230, and the radio wave intensity detecting unit 240 for detecting the radio wave intensity of the received signal and transmitting the detection signal to the second control unit 210 are configured.

  The telephone function block 600 of the mobile phone 700 includes a third control unit 610 including a CPU, a third storage unit 620 for storing an OS, various application software, various data, a numeric keypad, a function key, and the like. An operation unit 630 including a second display unit 640 including a liquid crystal display, a transmission / reception unit 670 for transmitting and receiving audio signals and packet signals, a voice input / output unit 680 including a speaker and a microphone, and the like. The

  Since the processing flow of the signal including the ID code in the timepiece 104 in the locking system 4 is the same as the processing flow shown in FIG. 2, the description thereof is omitted here.

  FIG. 12 is a diagram showing a processing flow in the authentication block 204 of the mobile phone 700.

  At the time when the processing flow shown in FIG. 12 is started, the telephone function block 600 includes application software for restricting and releasing the function of the telephone function block 600 in accordance with the control signal from the authentication block 204. Are preinstalled and activated in the third storage unit 620.

  First, the second control unit 210 of the authentication block 204 transmits a predetermined control signal to the telephone function block 600, and locks all functions of the telephone function block 600 (S50).

  Next, in the second control unit 210, the receiving unit 230 acquires an ID code from the received ID signal, compares the ID code with a registered ID code stored in advance in the second storage unit 220, and receives the received ID code. Is determined to match the registered ID code (S51).

  In S51, when the received ID code does not match the registered ID code, the second control unit 210 transmits a predetermined control signal to the telephone function block 600 and locks all functions of the telephone function block 600 ( S52). Thereafter, the second controller 210 measures a predetermined time (for example, 2 seconds) (S57), and performs the operation of S51 again.

  In S51, when the received ID code matches the registered ID code, the second control unit 210 then acquires the radio wave intensity signal of the received signal from the radio wave intensity detection unit 240 and stores it in the storage unit 220 in advance. It is determined whether or not the threshold value is equal to or greater than the predetermined threshold value (S53).

  In S53, when the radio wave intensity signal is less than the threshold value (that is, when watch 104 and mobile phone 700 are not sufficiently close), second control unit 210 sends a predetermined control signal to telephone function block 600. Then, the call function of the telephone function block 600 is unlocked (S54), and functions other than the call function are locked (S55). Thereafter, the second controller 210 measures a predetermined time (for example, 2 seconds) (S57), and performs the operation of S51 again.

  In S53, when the radio wave intensity signal is equal to or greater than the threshold value (that is, when watch 104 and mobile phone 700 are sufficiently close to each other), second control unit 210 sends a predetermined control signal to telephone function block 600. Then, the lock of all functions of the telephone function block 600 is released (S56). Thereafter, the second controller 210 measures a predetermined time (for example, 2 seconds) (S57), and performs the operation of S51 again.

  When the processing flow shown in FIG. 2 and FIG. 12 is executed and the user carrying the clock 104 that transmits a predetermined ID code uses the mobile phone 700, all functions of the mobile phone 700 are locked. The mobile phone 700 can be used with all functions. However, when the distance between the watch 104 that transmits a predetermined ID code and the mobile phone 700 is less than or equal to a predetermined radio wave intensity, only the call function lock of the mobile phone 700 is released, and limited use is possible. Furthermore, if the distance between the watch 104 that transmits a predetermined ID code and the mobile phone 700 is outside the receivable range, all the functions of the mobile phone 700 are maintained in an unusable state.

  As described above, in this example, a function that can be used in the mobile phone 700 depending on whether or not the watch 104 is in the vicinity of the mobile phone 700 by using the radio wave intensity signal as information related to the distance. It is configured so that it can be selected step by step. That is, when the watch 104 that transmits a predetermined ID code is present in the vicinity of the mobile phone 700 (for example, within 50 cm), a function with a high priority of security that is a predetermined rank (for example, a function other than the call function). If the watch 104 that permits the use of the mobile phone 700 and transmits a predetermined ID code exists in the reception range of the mobile phone 700 but does not exist in the vicinity, a function with a low security importance (for example, a call function) Set to allow the use of. Therefore, as shown in FIG. 12, the second control unit 210 has a high security importance (the radio wave intensity signal is equal to or greater than the threshold) and a low security importance (the radio wave intensity signal is less than the threshold) based on the radio wave intensity signal. ) And a predetermined control signal is transmitted to the telephone function block 600 so as to permit the use of the function in the mobile phone 700 step by step according to the determined importance of security. In this example, the importance of security is set in two stages for the call function and other functions in the mobile phone 700, but other functions such as the address book list browsing function, call history display function, cash With respect to the communication function of the payment information, etc., it is possible to set the importance of security and control to release the lock step by step based on the distance related information. In this example, the watch 104 is used as the identification information transmitter. However, instead of the watch 104, a batch type used in the locking system 1 or a card type card type hanging from the neck may be used.

  In the locking system 2 according to the present invention shown in FIG. 5 to FIG. 7, the transmission tag 102 is unilaterally more than the first ID code and the first ID code without transmitting the ID receiving code by the base 202. You may make it transmit the 2nd ID code with weak transmission field strength. In this case, when receiving the first ID code, the base 202 unlocks the display unit 340, and when receiving the second ID code, the base 202 gradually unlocks the display unit 340 and the operation unit 330. The PC terminal 300 can be configured to allow the use of functions.

  In addition, in the locking system 1 according to the present invention shown in FIGS. 1 to 4, the importance of security is used as a predetermined order for permitting the use of functions in the PC terminal 300 step by step. May set a predetermined order. For example, the user sets the rank “1” in the “input operation function” shown in FIG. 3, sets the rank “2” in the “screen saver display function”, and stores these settings in the third storage unit of the PC terminal 300. 320 is stored. Then, the base 200 unlocks the “screen saver display function” set to the rank “2” when the radio wave reception intensity when the predetermined ID code that matches the registered ID code is not equal to or higher than the threshold value. If it is equal to or greater than the threshold, both the “screen saver display function” set to the rank “2” and the “input operation function” set to the rank “1” are canceled. Of course, the priority is not limited to “1” or “2”, and the priority “high” or “low” may be set as the predetermined order. The setting function of the predetermined order can be programmed to be performed by application software installed in the second storage unit 320 of the PC terminal 300. With this configuration, the use of functions in the PC terminal 300 can be permitted in stages according to the purpose of use of the user. Similarly, in the locking systems 2 to 4, the user may be able to set a predetermined order.

  In the first embodiment in FIGS. 1 to 4, the base 200 receives the ID code at a predetermined time interval, but may be configured to receive the ID signal at a predetermined time interval by other methods. Good. For example, the receiving unit 230 of the base 200 always performs a receiving operation, and every time the receiving unit 230 receives an ID signal, the second control unit 210 acquires the ID code and stores it in the second storage unit 220 in advance. While determining whether or not it matches the stored registration ID, the radio wave intensity detector 240 determines whether or not the radio wave intensity is equal to or greater than a threshold value. Then, the third control unit 310 of the PC terminal 300 measures the elapse of the predetermined time of S17 in FIG. 3, and every time the predetermined time elapses, the third I / O of the PC terminal 300 changes the second I / O of the base 200. A signal indicating whether or not the ID codes match is acquired from O (corresponding to S11 in the figure). In the case of a signal indicating that they match, it is further determined whether or not the radio wave intensity is equal to or greater than a threshold value. The signal shown may also be acquired (corresponding to S13 in FIG. 3).

It is a figure which shows schematic structure of the locking system 1 which concerns on this invention. It is the figure which showed the processing flow in a transmission tag. It is the figure which showed the processing flow in a base. It is the figure which showed the correspondence of the function of PC terminal, and the importance of its security. It is the figure which showed schematic structure of the other locking system 2 which concerns on this invention. It is the figure which showed the processing flow in another transmission tag. It is the figure which showed the processing flow in another base and PC terminal. It is the figure which showed schematic structure of the further another locking system 3 which concerns on this invention. It is a figure which shows the example of arrangement | positioning of a base, a PC terminal, and a 2nd base. It is the figure which showed the processing flow in the base of the locking system 3, and a PC terminal. It is a figure which shows schematic structure of the further another locking system 4 which concerns on this invention. It is the figure which showed the processing flow in the authentication block of a mobile telephone.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100,102 Transmission tag 104 Mobile phone 130 Transmission part 200,202 Base 204 Authentication block 210 2nd control part 220 2nd memory | storage part 230 Reception part 240 Radio wave intensity detection part 300,302 PC terminal 400 2nd base 600 Telephone functional block 700 mobile phone

Claims (9)

A locking system,
An identification information transmitter having a transmitter for transmitting a signal including identification information;
A receiving unit for receiving the identification information;
A distance related information acquisition unit for acquiring distance related information related to the distance to the identification information transmitter;
A storage unit that stores a plurality of operations of the locked device in association with a predetermined order; and
When the identification information is not received, a plurality of operations of the locked device are disabled, and when the identification information is received, the operation of the locked device is performed based on the distance related information and the predetermined order. A locking device having a control unit capable of using a plurality of operations in stages;
A locking system characterized by comprising:   The locking system according to claim 1, wherein the distance-related information acquisition unit acquires the distance-related information based on reception intensity of a reception signal from the identification information transmitter. The identification information includes first identification information and second identification information,
The locking system according to claim 1, wherein the distance-related information acquisition unit acquires the distance-related information based on a reception state of the first and second identification information. The locking device further includes a transmission unit for transmitting a signal including reception confirmation information when the first identification information is received from the identification information transmitter,
The identification information transmitter further includes a receiving unit for receiving the reception confirmation information,
The locking system according to claim 3, wherein the identification information transmitter transmits the second identification information from the transmission unit when the reception unit receives the reception confirmation information.   The locking system according to claim 4, wherein a transmission intensity of a signal including the reception confirmation information is set to be smaller than a transmission intensity of a signal including the first identification information. The receiving unit has a first antenna and a second antenna,
The locking system according to claim 1, wherein the distance-related information acquisition unit acquires the distance-related information based on reception states of the first and second antennas. A locking system,
An identification information transmitter having a transmission unit for transmitting a signal including identification information; and a first reception unit for receiving the identification information;
A distance related information acquisition unit for acquiring distance related information related to the distance to the identification information transmitter;
A storage unit that stores a plurality of operations in the mobile phone in association with a predetermined order; and
When the identification information is not received, the plurality of operations are disabled, and when the identification information is received, the plurality of operations are used stepwise based on the distance related information and the predetermined order. A control unit to enable,
A mobile phone having a second receiver for receiving an audio signal;
A locking system characterized by comprising:   The locking system according to claim 7, wherein the identification information transmitter has an arm mounting portion that is mounted on an arm. The predetermined order is the importance of security,
The control unit according to claim 1, wherein the control unit determines the importance of security based on the distance-related information, and allows the plurality of operations to be used in stages according to the determined importance of security. The locking system according to any one of claims.

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