JP2012172492A - Security system, door locking/unlocking control method and door locking/unlocking control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a security system, a door locking/unlocking control method and a door locking/unlocking control program enabling a user to adjust an area to perform a locking/unlocking operation.SOLUTION: When a portable terminal 32 approaches a specific region where security is to be ensured and intensity of radio wave measured by intensity measuring means 34c exceeds a threshold, unlocking request data transmission means 34e transmits an unlocking request to a security center 33. The security center 33, in response to the unlocking request, sets specific region entrance control means 31 such as a door in an unlocked state. Threshold change means 34g allows a boundary region, where a locking/unlocking operation is to be performed, to be changed by making the threshold manually settable.

Description

  The present invention relates to a security system, a door locking / unlocking control method, and a door locking / unlocking control program, and more particularly to a security system, a door locking / unlocking control method, and a door locking / unlocking control program for controlling locking and unlocking of doors and doors. .

  A security system that locks or unlocks the door of the house is known as a first related technique of the present invention (see, for example, Patent Document 1). In the first related technology, locking of the lock is controlled using position information using GPS (Global Positioning System) and base station identification information of a base station of PHS (Personal Handy phone System).

  FIG. 18 is for explaining the outline of the security system according to the first related technology. The security system 100 includes a key unit 102 including a front door (door) to which a lock 101 is attached. The key unit 102 is connected to the portable terminal 105 via a wireless base station 104 connected to a communication network 103 such as the Internet. Also connected to the communication network 103 is a security center 106 for instructing and managing the locking or unlocking of the lock 101. Here, “lock” is a tool that fixes an object that is subject to security, such as a front door, and “key” is an object such as a door (door) that is subject to security in combination with a “lock”. Refers to a device that can be locked (locked) or unlocked (unlocked).

  In such a security system 100, the portable terminal 105 can detect the current position by GPS. The current position of the mobile terminal 105 can also be determined from the fixed position of the radio base station 104 that is communicating with the mobile terminal 105. The portable terminal 105 compares the detection result of the position of the own device with a specific position specified by the user. Here, the specific position is, for example, the position of the home where the key unit 102 is installed.

  As a result of the position comparison, when the distance from the specific position is greater than or equal to a predetermined value, the mobile terminal 105 transmits an e-mail instructing to notify the state of the lock 101 to the security center 106. The security center 106 returns an e-mail indicating the state of the lock 101. As a result, when it is determined that the lock 101 of the key unit 102 is unlocked, the portable terminal 105 transmits an e-mail instructing to lock the lock 101 to the security center 106. When the security center 106 receives this e-mail, it locks the key unit 102 with the lock 101. Thereafter, the security center 106 transmits a lock notification mail indicating that the lock 101 is locked to the portable terminal 105. Thus, the user of the portable terminal 105 can perform locking by remotely operating the security system when going out without being aware of it.

  However, in the first related technology, the current position of the user (the position of the mobile terminal 105) when compared with the position of the home (specific position), the GPS position detection result of the mobile terminal 105 or the communication of the mobile terminal 105 The determination is made based on the fixed position of the wireless base station 104. For this reason, the position information of the portable terminal is not switched unless it is separated from the home entrance by, for example, about several hundred meters, due to the GPS location detection error and the location error based on the arrangement interval of the wireless base stations 104. There is a problem that cannot be done immediately.

  In addition, in the first related technology, when the portable terminal 105 is stolen, the security center 106 locks the lock 101 unless the portable terminal 105 exists at a distance close to the home entrance.

  Therefore, as a second related technique, a security system has been proposed in which a user of a mobile terminal accesses a security center and gives an instruction to lock or unlock the lock after successful authentication (see, for example, Patent Document 2). In this security system, the security center performs an operation of locking and unlocking the entrance according to the locking or unlocking instruction from the mobile terminal side.

  However, when the second related technology is adopted, there is a problem that when the user forgets to perform the locking operation by the mobile terminal, the entrance lock remains unlocked. In order to issue a locking instruction after accessing the security center and performing the authentication procedure, it is better for the user to perform the locking by himself / herself.

  Thus, as a third related technique, a security system in which locking or unlocking is performed according to the distance between the lock and the communication terminal has been proposed (see, for example, Patent Document 3). In the third related technique, the wireless communication between the portable terminal and the device that controls the locking or unlocking of the lock is unlocked when communication is possible in the contact distance mode that allows communication within tens of centimeters. In addition, locking is performed when the short-distance mode in which communication can be performed within a few tens of centimeters from the close-distance mode in which communication is possible to a place a little farther than the contact distance mode is performed.

Japanese Patent No. 4507166 (paragraph 0017, FIG. 5) Japanese Patent Laying-Open No. 2005-023689 (paragraph 0006, FIG. 1) Japanese Patent Laying-Open No. 2006-319718 (paragraphs 0013, 0037, 0038, 0073 to 0083, FIG. 3)

  In this third related technology, two types of modes, a contact distance mode and an approach distance mode, are defined, and the distance between the portable terminal and the device that controls locking / unlocking of the lock is a value determined in advance at the time of factory shipment. It is set to be. Thereby, even if a user does not operate directly, locking and unlocking are automatically performed in relation to the distance.

  However, when the specification of a product adopting the third related technology is disclosed, not only the user of the security system as the user of the lock but also the third party will know the specification. Therefore, for example, a malicious third party pushes into the house aiming at the timing when it is unlocked when the user who returns home to the apartment passes the unlocked door and takes off the shoes at the entrance There was a risk of inducing a crime.

  Accordingly, an object of the present invention is to provide a security system, a door locking / unlocking control method, and a door locking / unlocking control program that allow a user to change a boundary area where locking and unlocking are performed.

  Another object of the present invention is to provide a security system, a door locking / unlocking control method, and a door locking / unlocking control program capable of locking regardless of the distance relationship with a device when the lock is unlocked with the device. Is to provide.

  In the present invention, (a) a specific area entry control means for prohibiting a person from entering a specific area where security is to be ensured in a locked state and enabling it in an unlocked state, and (b) the specific area described above A locking / unlocking instruction means for instructing the above-mentioned locked state or unlocking state for the above-mentioned specific area access control means by transmitting an electric signal, and (c) the unlocking state of the above-mentioned specific area access control means. Radio receiving means for receiving a radio signal from a portable terminal possessed by a person who goes in and out between the specific area and the external area outside the area at a place where the specific area access control means exists; (d) When the wireless reception means starts detecting a wireless signal having a strength exceeding a predetermined threshold value, a signal requesting the change to the unlocked state is sent to the locking / unlocking instruction means. A locking / unlocking instruction requesting means for sending a signal requesting a change to the locking state to the locking / unlocking instruction means when the detection of the radio signal below the threshold is started; and The security system includes a threshold value changing means including an input means for changing in (1).

  In the present invention, (a) a specific area entry control means for prohibiting a person from entering a specific area where security is to be ensured in a locked state and enabling it in an unlocked state; A locking / unlocking instruction means for instructing the locking state or unlocking state of the specific area entry control means arranged outside the specific area by transmitting an electric signal; and (c) unlocking the specific area entry control means. A transmission output setting means for setting a wireless transmission output to a portable terminal possessed by a person who goes in and out between the specific area and the external area outside of the specific area, and (d) a wireless from the portable terminal Radio receiving means for receiving a signal at a location where the above-mentioned specific area entry control means exists, and (e) Wireless communication with the above-described portable terminal is possible by this wireless receiving means. When it is determined that it has become, when a signal requesting the change to the unlocked state is sent to the above-described locking / unlocking instruction means, and it is determined that wireless communication with the above-described portable terminal has become impossible A locking / unlocking instruction requesting means for sending a signal requesting the locking / unlocking instruction means to change to the locking state; and (f) a transmission output changing means comprising an input means for manually changing the transmission output. Security system.

  Further, according to the present invention, (a) a specific person is connected to the Internet and arranged at a boundary position between a specific area where a specific person should secure security and an external area arranged outside the specific area, and the above-described specific area is controlled depending on the locked state. (B) a person who enters and exits between the specific area and the external area outside the specific area when the specific area access control means is in the unlocked state. A portable terminal possessing a wireless communication function, and (c) a security center for transmitting the above-mentioned locked state and unlocked state instructions to the above-mentioned specific area entry control means from the above-mentioned external area via the above-mentioned Internet (D) wireless communication means arranged in the specific area and communicating with the portable terminal, and connected to the Internet Internet connection means, strength measurement means for measuring the intensity of radio waves during communication of the wireless communication means, threshold value storage means for storing a threshold value to be compared with the intensity measured by the strength measurement means, and the threshold value storage means As a result of comparing the stored threshold value with the intensity measured by the intensity measuring means a predetermined number of times, it is determined that the portable terminal has approached the intensity measuring means by a distance corresponding to the threshold value, and the security center is described above. The unlocking request data transmitting means for transmitting the unlocking request data for requesting the unlocking instruction of the specific area entry control means, the strength measured by the strength measuring means described above and the predetermined number of times As a result of the comparison, it is determined that the above-described mobile terminal has moved away from the intensity measuring means by a distance corresponding to the above-described threshold value, and the above-described security Lock request data transmission means for transmitting the lock request data requesting the lock instruction of the specific area entry control means to the tea center, and threshold change means for manually changing the threshold stored in the threshold storage means The security system includes a device in a specific area including

  Furthermore, according to the present invention, (a) a specific person connected to the Internet and arranged at a boundary position between a specific area where a specific person should ensure security and an external area arranged outside the specific area, and to the specific area described above depending on the locked state. And (b) entering and exiting between the specific area and the external area outside the specific area when the specific area access control means is in the unlocked state. A portable terminal possessed by a person and having a wireless communication function; and (c) a security center that sends instructions for the above-mentioned locked state and unlocked state to the above-mentioned specific area entry control means from the above-mentioned external area via the above-mentioned Internet. (D) wireless communication means arranged in the specific area and communicating with the mobile terminal, and connecting to the Internet. Wireless communication with the mobile terminal described above for the Internet connection means, the transmission output setting means for setting the radio wave transmission output of the wireless communication means, and the radio wave of the transmission output set by the transmission output setting means. Attribution time discriminating means for discriminating the attribution time as an enabled time point, and the above-mentioned identification corresponding to the transmission output described above by the portable terminal at the time when the attribution time discriminating means discriminates that communication is possible Unlock request data transmitting means for transmitting the unlock request data for determining that it is in the area range and requesting the unlocking instruction of the specific area entry control means to the security center, and the transmission output described above A separation for determining a departure time as a time when wireless communication with the mobile terminal becomes impossible with respect to the radio wave of the transmission output set by the setting means. It is determined that the portable terminal described above is not within the range of the specific area corresponding to the transmission output described above at the time when it is determined that communication is impossible by the time determination means and the departure time determination means. Manually change the above-mentioned transmission output set by the above-mentioned transmission output setting means and the lock request data transmission means for transmitting the lock request data for requesting the lock instruction of the above-mentioned specific area access control means to the security center The security system includes a device in a specific area including a transmission output changing unit.

  Further, in the present invention, (a) when there is an instruction to lock the door used to enter a specific area where security should be ensured, the door is locked, and when there is an instruction to unlock the door, The unlocking step for unlocking, and (b) the reception strength of the radio wave transmitted from the portable terminal held by the person who enters and exits between the specific area and the external area outside the area where the door exists. An unlocking instruction step for instructing the unlocking as described above when a predetermined threshold is exceeded, and (c) a person who enters and exits between the specific area and the external area outside the area where the door exists. A locking instruction step for instructing the locking described above when the reception intensity of the radio wave transmitted from the portable terminal is equal to or lower than a predetermined threshold; and (d) manually changing the threshold described above in the specific area. Threshold change step The door locking and unlocking control method is provided.

  Furthermore, in the present invention, as a door locking / unlocking control program, (a) when a locking instruction is given to a door used for a person entering a specific area where security is to be secured, the door is locked and unlocked. (B) from the mobile terminal possessed by a person who enters and exits between the specific area and the external area outside the area where the door exists. An unlocking instruction process for instructing the unlocking as described above when the reception intensity of the transmitted radio wave exceeds a predetermined threshold; and (c) the specific area and the outside of the outside in the place where the door is present. A locking instruction process for instructing locking as described above when the reception intensity of a radio wave transmitted from a portable terminal held by a person who goes in and out of the area falls below a predetermined threshold; The above threshold is It is characterized by executing the threshold value changing process of changing at al.

  As described above, according to the present invention, the reception strength threshold value that defines the unlocking and locking change points when manually receiving a wireless signal from a portable terminal at a location such as a door that controls the entry of a person is manually changed. I was able to do it. Thereby, the manufacturing side of the security system does not need to finely adjust the reception intensity according to the use environment of the user, and the manufacturing cost can be reduced. In addition, the user can appropriately adapt the product to the usage environment.

  In addition, according to the present invention, a portable terminal possessed by a person who enters and exits between a specific area that is prohibited when a person is in the locked state and is allowed in the unlocked state and an external area outside the locked area can be locked and unlocked. The setting of the transmission output that enables wireless communication with the commander can be changed manually. As a result, the security system manufacturer does not need to finely adjust the transmission output according to the user's usage environment, and can reduce the manufacturing cost. In addition, the user can appropriately adapt the product to the usage environment.

It is a claim corresponding figure of the security system of the present invention. It is a claim corresponding | compatible figure of the other security system of this invention. It is a claim corresponding | compatible figure of the other security system of this invention. It is a claim corresponding | compatible figure of the other security system of this invention. It is a claim corresponding | compatible figure of the door locking / unlocking control method of this invention. It is a claim corresponding | compatible figure of the door locking / unlocking control program of this invention. 1 is a system configuration diagram showing an outline of a configuration of a security system according to an embodiment of the present invention. It is a block diagram showing the structure of the home gateway of this Embodiment. It is the flowchart showing the mode of the process by the side of the personal computer at the time of performing the initial setting of the security system of this Embodiment to a home gateway. It is a flowchart showing the mode of the security related setting process in the home gateway of this Embodiment. It is a flowchart showing the mode of the locking / unlocking process of the lock by the home gateway of this Embodiment. It is a flowchart showing the mode of processing of the security center of this embodiment. It is a flowchart showing an example of the reception process of the locking / unlocking result on the wireless slave unit side in the present embodiment. It is a system block diagram showing the outline | summary of the structure of the home gateway in the 1st modification of this invention. It is a flowchart showing the situation of the security related setting process in the home gateway of a 1st modification. It is a flowchart showing the mode of the locking / unlocking process of the lock | rock by the home gateway in a 1st modification. It is a system block diagram showing the outline | summary of the structure of the security system in the 2nd modification of this invention. It is a system configuration figure showing the outline of the security system by the 1st related art.

  FIG. 1 is a diagram corresponding to claims of the security system of the present invention. The security system 10 of the present invention includes specific area entry control means 11, locking / unlocking instruction means 12, wireless receiving means 13, locking / unlocking instruction requesting means 14, and threshold changing means 15. Here, the specific area entry control means 11 prohibits a person from entering a specific area where security is to be ensured in the locked state and enables it in the unlocked state. The locking / unlocking instruction unit 12 is arranged outside the above-described specific region and instructs the above-described locking state or unlocking state to the specific region entry control unit 11 by transmitting an electric signal. The wireless reception means 13 receives a wireless signal from a portable terminal held by a person who enters and exits between the specific area and an external area outside the specific area when the specific area access control means 11 is unlocked. 11 is received at the place where it exists. The locking / unlocking instruction requesting means 14 sends a signal requesting the locking / unlocking instruction means 12 to change to the unlocked state when the wireless receiving means 13 starts detecting a wireless signal having a strength exceeding a predetermined threshold. When the detection of the radio signal below the threshold is started, a signal requesting to change to the locked state is sent to the locking / unlocking instruction means 12. The threshold value changing means 15 includes an input means for manually changing the above-described threshold value.

  FIG. 2 shows a claim correspondence diagram of another security system of the present invention. Another security system 20 of the present invention includes a specific area entry control means 21, a lock / unlock instruction means 22, a transmission output setting means 23, a wireless reception means 24, a lock / unlock instruction request means 25, and a transmission output change means. 26. Here, the specific area entry control means 21 prohibits the entry of a person into the specific area where security should be ensured in the locked state and enables it in the unlocked state. The locking / unlocking instruction unit 22 is arranged outside the above-described specific area and instructs the above-described locking state or unlocking state to the specific area entry control unit 21 by transmitting an electric signal. The transmission output setting means 23 sets a wireless transmission output to a portable terminal possessed by a person who goes in and out between the specific area and the external area outside the specific area when the specific area entry control means 21 is unlocked. . The wireless receiving unit 24 receives a wireless signal from the above-described portable terminal at a place where the above-described specific area entry control unit exists. The locking / unlocking instruction requesting unit 25 requests the locking / unlocking instruction unit 22 to change to the unlocking state when it is determined by the wireless receiving unit 24 that wireless communication with the mobile terminal is possible. Is sent to the locking / unlocking instruction means 22 when it is determined that wireless communication with the portable terminal has become impossible. The transmission output changing means 26 includes an input means for manually changing the transmission output described above.

  FIG. 3 is a diagram corresponding to claims of still another security system of the present invention. Still another security system 30 according to the present invention includes a specific area entry control means 31, a portable terminal 32, a security center 33, and a specific area device 34. Here, the specific area entry control means 31 is connected to the Internet, and is arranged at a boundary position between a specific area where a specific person should ensure security and an external area arranged outside the specific area, and the specific area access control means 31 described above depending on the locking state. Access to the area is prohibited and enabled by the unlocked state. The portable terminal 32 is possessed by a person who goes in and out between the specific area and the external area outside when the specific area entry control means 31 is unlocked, and has a wireless communication function. The security center 33 sends the above-described locked state and unlocked state instructions to the specific area entry control means 31 from the above-described external area via the above-described Internet. The specific area device 34 includes a wireless communication unit 34a, an Internet connection unit 34b, a strength measurement unit 34c, a threshold storage unit 34d, an unlock request data transmission unit 34e, a lock request data transmission unit 34f, and a threshold change. Means 34g are provided. The wireless communication unit 34 a is arranged in the specific area described above and communicates with the mobile terminal 32. The Internet connection unit 34b connects to the Internet described above. The intensity measuring unit 34c measures the intensity of the radio wave during communication by the wireless communication unit 34a. The threshold value storage unit 34d stores a threshold value to be compared with the intensity measured by the intensity measurement unit 34c. The unlock request data transmission unit 34e corresponds to the threshold value stored in the strength measurement unit by the portable terminal 32 as a result of comparing the threshold value stored in the threshold value storage unit 34d with the strength measured by the strength measurement unit 34c a predetermined number of times. It is determined that the distance has been approached, and unlock request data for requesting an unlock instruction from the specific area entry control means 31 is transmitted to the security center 33. The lock request data transmission unit 34f determines that the portable terminal 32 has moved away from the strength measurement unit 34c by a distance corresponding to the threshold value as a result of comparing the threshold value with the strength measured by the strength measurement unit 34c a predetermined number of times. The lock request data requesting the lock instruction of the specific area entry control means 31 is transmitted to the center 33. The threshold value changing unit 34g manually changes the threshold value stored in the threshold value storing unit 34d.

  FIG. 4 is a diagram corresponding to claims of another security system of the present invention. Another security system 40 of the present invention includes a specific area entry control means 41, a mobile terminal 42, a security center 43, and a specific area device 44. Here, the specific area entry control means 41 is connected to the Internet, and is arranged at a boundary position between a specific area where a specific person should ensure security and an external area arranged outside the specific area. Access to the area is prohibited and enabled by the unlocked state. The portable terminal 42 is possessed by a person who enters and exits between the specific area and the external area outside the specific area when the specific area entry control means 41 is unlocked, and has a wireless communication function. The security center 43 sends the above-described locked state and unlocked state instructions to the specific area entry control means 41 from the above-described external area via the above-described Internet. The in-specific area device 44 includes a wireless communication unit 44a, an Internet connection unit 44b, a transmission output setting unit 44c, an belonging time determination unit 44d, an unlock request data transmission unit 44e, a withdrawal time determination unit 44f, Request data transmitting means 44g and transmission output changing means 44h are provided. The wireless communication unit 44 a is arranged in the specific area described above and communicates with the mobile terminal 42. The internet connection means 44b connects to the internet. The transmission output setting unit 44c sets the radio wave transmission output of the wireless communication unit 44a. The belonging time determination unit 44d determines the belonging time as a time when wireless communication with the portable terminal 42 becomes possible for the radio wave of the transmission output set by the transmission output setting unit 44c. The unlock request data transmission unit 44e determines that the portable terminal 42 is within the range of the specific area corresponding to the transmission output at the time when it is determined that the communication is possible by the belonging time determination unit 44d. Unlock request data for requesting an unlocking instruction from the specific area entry control means 41 is transmitted to the center 43. The departure time determination unit 44f determines a departure time as a time when wireless communication with the portable terminal 42 becomes impossible for the radio wave of the transmission output set by the transmission output setting unit 44c. The locking request data transmission unit 44g determines that the portable terminal 42 is not within the range of the specific area corresponding to the transmission output described above when the disconnection time determination unit 44f determines that communication is impossible. The lock request data requesting the lock instruction of the specific area entry control means 41 is transmitted to the security center 43. The transmission output changing unit 44h includes manually changing the transmission output set by the transmission output setting unit 44c.

  FIG. 5 is a diagram corresponding to claims of the door locking / unlocking control method of the present invention. The door locking / unlocking control method 50 of the present invention includes a locking / unlocking step 51, an unlocking instruction step 52, a locking instruction step 53, and a threshold changing step 54. Here, in the locking / unlocking step 51, when there is an instruction to lock the door used to enter a specific area where security should be secured, the door is locked. Unlock. In the unlocking instruction step 52, the reception intensity of the radio wave transmitted from the portable terminal held by the person who enters and exits between the specific area and the external area outside the area where the door exists is set to a predetermined threshold value. When exceeded, the unlocking instruction is given. In the locking instruction step 53, at the place where the door is present, the reception intensity of the radio wave transmitted from the portable terminal held by the person who enters and exits between the specific area and the external area outside the predetermined area is less than a predetermined threshold value. When this happens, the locking instruction is given. In the threshold value changing step 54, the above-described threshold value is manually changed in the specific area.

  FIG. 6 is a diagram corresponding to the claims of the door locking / unlocking control program of the present invention. The door locking / unlocking control program 60 of the present invention causes a computer to execute a locking / unlocking process 61, an unlocking instruction process 62, a locking instruction process 63, and a threshold value changing process 64. Here, in the locking / unlocking process 61, the door is locked when an instruction to lock the door used to enter a specific area where security is to be secured is given, and the door is locked when the unlocking instruction is given. Unlock. In the unlocking instruction processing 62, the reception intensity of the radio wave transmitted from the portable terminal held by the person who enters and exits between the specific area and the external area outside the area where the door is present has a predetermined threshold value. When exceeded, the unlocking instruction is given. In the locking instruction process 63, the reception intensity of the radio wave transmitted from the portable terminal held by a person who enters and exits between the specific area and the external area outside the area where the door is present is less than a predetermined threshold value. When this happens, the locking instruction is given. In the threshold value changing process 64, the above-described threshold value is manually changed in the specific area.

  <Embodiment of the Invention>

  Next, an embodiment of the present invention will be described.

  FIG. 7 shows an outline of the configuration of the security system according to the embodiment of the present invention. In the security system 200 of the present embodiment, a key unit 202 is attached to the entrance door of a house 201 where the user lives. The key unit 202 is a device that executes locking and unlocking of the lock 203 according to an electrical instruction from the outside.

  The key unit 202 is connected to a home gateway 204 in the same house 201 and also connected to the Internet 205. A security center 206 for managing the security system according to this embodiment is also connected to the Internet 205.

  The home gateway 204 is a device arranged between the Internet 205 and a home network such as a home LAN (Local Area Network), and has a function as a router and various functions such as protocol conversion. There are many. In many cases, commercially available routers constitute the home gateway 204.

  In this embodiment, a personal computer 208 is connected to the home gateway 204 via a wired LAN 207. The home gateway 204 can be connected to a wireless device (not shown) via the wireless LAN 209. However, in this embodiment, the wireless slave device 210 is not necessarily connectable to the wireless LAN 209. The wireless slave device 210 only needs to be received by the received signal strength measuring unit 234 when the strength of the transmitted signal is strong to some extent.

  FIG. 8 shows the configuration of the home gateway. This will be described with reference to FIG.

  The home gateway 204 includes a control unit 223 including a CPU (Central Processing Unit) 221 and a control program storage unit 222. The control unit 223 executes control programs stored in the control program storage unit 222 by the CPU 221 so as to control each unit described below that constitutes the home gateway 204.

  The wireless communication unit 224 wirelessly communicates high-frequency signals with various wireless communication terminals using the wireless LAN 209. The wired communication unit 225 can communicate with an external device such as the security center 206 via the Internet 205, and can also communicate with an information processing apparatus connected to the wired LAN 207 such as a personal computer 208.

  The storage unit 226 includes a storage unit that stores various data and application programs. Among these, the target wireless slave unit information storage unit 228 stores target wireless slave unit information as identification information of the wireless slave unit 210 used for locking or unlocking control of the lock 203. This is to prevent the lock 203 from being locked or unlocked by a wireless terminal unrelated to the user. The target wireless slave unit received signal strength information storage unit 229 stores target wireless slave unit received signal strength information representing the strength of the received signal received from the wireless slave unit 210. The received signal strength threshold storage unit 230 stores a received signal strength threshold as a threshold used when controlling the key unit 202 based on the received signal received from the wireless slave device 210. In the present embodiment, the received signal strength threshold can be freely changed by the user by a predetermined procedure. The locking instruction data storage unit 231 stores locking instruction data for instructing locking of the key unit 202 of the house 201 in which the user resides. The unlocking instruction data storage unit 232 stores unlocking instruction data for instructing unlocking of the key unit 202 of the house 201 in which the user resides. The measurement interval data storage unit 233 stores time interval data measured by the received signal strength measurement unit 234 described below.

  The received signal strength measuring unit 234 is a circuit device that measures the received signal strength to be stored in the target wireless slave unit received signal strength information storage unit 229. The control unit 223 reads the signal received by the wireless communication unit 224 and causes the received signal strength measurement unit 234 to measure a received signal strength (RSSI). When the received signal strength of the target wireless slave device 210 is measured by the received signal strength measurement unit 234, the measurement result is stored in the target wireless slave device received signal strength information storage unit 229 in the storage unit 226 by the control unit 223. Is done.

The unlocking determination unit 235 is a circuit device that determines whether the key unit 202 of the house 201 in which the user resides is locked or unlocked. The locking / unlocking determination unit 235 includes the target wireless slave unit reception signal strength information stored in the target wireless slave unit reception signal strength information storage unit 229 in the storage unit 226 and the reception signal stored in the reception signal strength threshold storage unit 230. The intensity threshold value is read out under the control of the control unit 223. Then, by comparing these, it is determined whether the key unit 202 is locked or unlocked. The control unit 223 controls data transmission to the security center 206 using the lock / unlock determination result.

  The personal computer 208 used in this embodiment is a device that allows a user of the wireless slave device 210 to log in. The user accesses the home gateway 204 from the personal computer 208 using the wired communication unit 225, sets the received signal strength threshold used in the security system 200 in the received signal strength threshold storage unit 230, and if necessary, The value can be changed.

  The home gateway 204 compares the target wireless slave unit received signal strength information of the received signal received from the wireless slave unit 210 with the received signal strength threshold value stored in the received signal strength threshold storage unit 230, and determines the value indicated by the former. When it becomes high, it is determined that the user has come to a position sufficiently close to the key unit 202 of the house 201 where the user resides. Therefore, in this case, the home gateway 204 instructs the security center 206 to unlock the lock 203. In other cases, that is, when the received signal strength threshold is equal to or greater than the value indicated by the target wireless slave device received signal strength information, the home gateway 204 instructs the security center 206 to lock the lock 203. Become.

  FIG. 9 shows the state of processing on the personal computer side when initializing the security system of the present embodiment in the home gateway. FIG. 10 shows how security-related setting processing is performed in the home gateway. This will be described with reference to FIGS.

  A user who is a resident of the house 201 activates the browser of the personal computer 208 with the personal computer 208 connected to the home gateway 204 via the wired LAN 207. Then, the home gateway 204 is accessed by inputting a predetermined address for the home gateway 204 into the browser (step S301 in FIG. 9).

  When a terminal such as the personal computer 208 accesses the home gateway 204 by specifying an address via the wired LAN 207 (step S321: Y in FIG. 10), the home gateway 204 transmits information on an authentication screen for authentication to the terminal. (Step S322). This is to prevent other than a specific person from making important settings such as a security system for the home gateway 204.

  The personal computer 208 is on standby for receiving authentication screen information from the home gateway 204 (step S302 in FIG. 9). When the information on the authentication screen is received (Y), the authentication screen is displayed on the browser (step S303). Then, it waits for the user to input the user name and password and press an “OK” button (not shown) (step S304). When the user presses the “OK” button (Y), the user name and password input in the authentication field are transmitted to the home gateway 204 via the wired LAN 207 (step S305).

  The home gateway 204 waits for a user name and password to be sent from the personal computer 208 as a communication terminal (step S323 in FIG. 10). If the user name and password are sent (Y), whether the authentication is correct or not is determined by comparing them with the data registered in advance (step S324). If the authentication fails (N), a predetermined error process is performed (step S325), and the setting process is terminated (end).

  If the authentication is successful (step S324: Y), information on a setting screen for causing the home gateway 204 to perform various settings is transmitted to the terminal (personal computer 208) (step S326). Then, it waits for the setting information to be sent (step S327).

  The personal computer 208 is waiting for the setting screen information to be sent (step S306 in FIG. 9). When setting screen information is sent from the home gateway 204 (Y), the setting screen is displayed on the browser (step S307). Then, it waits for the user to input the target wireless slave device information and the received signal strength threshold value in the corresponding fields and press a “set” button (not shown) (step S308). When the user presses the “set” button (Y), the personal computer 208 transmits information and values input on the setting screen to the home gateway 204 (step S309), and ends the initial setting process (step S309). End).

  Upon receiving the setting information from the personal computer 208 transmitted in step S309 in FIG. 9 (step S327: Y in FIG. 10), the home gateway 204 stores these information or values in the corresponding area of the storage unit 226. (Step S328). Specifically, the target wireless slave device information is overwritten in the target wireless slave device information storage unit 228, the received signal strength threshold value is stored in the received signal strength threshold value storage unit 230, and the security-related setting process is terminated (end). ). When other data such as measurement interval data stored in the measurement interval data storage unit 233 is input as setting information, the setting information is also stored in a corresponding location in the storage unit 226.

  FIG. 11 shows a state of lock / unlock processing by the home gateway. This will be described with reference to FIGS.

  Based on the measurement interval data stored in the measurement interval data storage unit 233, the control unit 223 of the home gateway 204 monitors whether the reception signal strength measurement timing by the reception signal strength measurement unit 234 has arrived (Step S22). S341). When the user has not written the measurement interval data in the measurement interval data storage unit 233, the received signal strength measurement unit 234 measures the received signal strength at the time interval (for example, 10 seconds, 1 minute) set as the default value. To be done.

  When it is time to measure the received signal strength (Y), the received signal strength measuring unit 234 measures the received signal strength using the wireless communication unit 224 (step S342). Of course, the signal received and measured at this time is from the user's wireless slave unit 210 having the target wireless slave unit information stored in the target wireless slave unit information storage unit 228.

  When the measurement is completed, the control unit 223 reads the currently set reception signal strength threshold value from the reception signal strength threshold storage unit 230 (step S343), and subsequently performs the previous measurement from the target wireless slave device reception signal strength information storage unit 229. Received signal strength information is read (step S344). The control unit 223 compares each value of the current received signal strength information measured in step S342 and the previous received signal strength information read in step S344 with the received signal strength threshold value read in step S343 (step S345).

  The control unit 223 determines whether these two comparisons have the same result (step S346). Note that the same result means a case where both the current and previous received signal strength information are larger than the received signal strength threshold or both are lower than the received signal strength threshold. This determination is made when the security center 206 is instructed to perform the lock / unlock processing of the lock 203 so that the same instruction is not continuously performed in time, thereby reducing communication traffic. At the same time, the power required for communication is reduced.

  Therefore, when the comparison result is the same and the lock / unlock instruction to the security center 206 is the same (step S346: Y), communication from the home gateway 204 to the security center 206 is not performed. In this case, the control unit 223 stores the received signal strength information obtained in the current measurement in the target wireless slave device received signal strength information storage unit 229 of the storage unit 226 (step S347), and returns to the process of step S341 ( return).

  If the comparison result of the received signal strength threshold values of the two previous target wireless slave device received signal strength information is not the same (step S346: N), the value of the current target wireless slave device received signal strength information Is greater than the received signal strength threshold (step S348). If it is larger (Y), the wireless slave device 210 is located at a location closer to the wireless communication unit 224 than the distance corresponding to the value of the reception intensity set as the threshold value. Therefore, in this case, the control unit 223 transmits an unlocking instruction for the lock 203 to the security center 206 (step S349). Then, the received signal strength information obtained by the current measurement is stored in the target wireless slave device received signal strength information storage unit 229 of the storage unit 226 (step S347), and the process returns to step S341 (return). .

  If it is determined in step S348 that the value of the current target wireless slave unit received signal strength information is equal to or less than the received signal strength threshold value (N), this corresponds to the received strength value set as the threshold value. The wireless slave unit 210 is located at a location that is the same as the distance or farther away from the wireless communication unit 224. Therefore, in this case, the control unit 223 transmits a lock instruction for the lock 203 to the security center 206 (step S350). Then, the received signal strength information obtained by the current measurement is stored in the target wireless slave device received signal strength information storage unit 229 of the storage unit 226 (step S347), and the process returns to step S341 (return). .

  FIG. 12 shows the processing of the security center. This will be described with reference to FIG.

  The security center 206 is configured as a server connected to the Internet 205, and a CPU (not shown) executes a control program stored in a storage medium such as a hard disk (not shown) to realize predetermined control. It has become. The CPU of the security center 206 waits for an instruction from the home gateway 204 at various places via the Internet 205 (step S361).

  When an instruction is sent from the home gateway 204 (step S361: Y), the above-described CPU checks the type of the instruction. If the instruction is an unlocking instruction (step S362: Y), an unlocking instruction is transmitted to the address of the key unit 202 that has been instructed (step S363). Transmission of the unlocking instruction is repeated until the unlocking result is received from the corresponding key unit 202 (step S364: N, step S363).

  When the unlocking result is received from the corresponding key unit 202 (step S364: Y), the CPU of the security center 206 transmits the unlocking result to the user's wireless slave unit 210 associated with the key unit 202 (step S364). In step S365), the process returns to step S361 (return). The unlocking result is either a result indicating that the unlocking was successful or a result indicating an error indicating that the unlocking did not occur.

  If the instruction sent from the home gateway 204 is not an unlocking instruction (step S362: N) but a locking instruction (step S366: Y), the CPU of the security center 206 sends the address of the key unit 202 that issued the instruction. A locking instruction is transmitted to (step S367). Transmission of the locking instruction is repeated until a locking result is received from the corresponding key unit 202 (step S368: N, step S367).

  When the locking result is received from the corresponding key unit 202 (step S368: Y), the CPU of the security center 206 transmits the locking result to the user's wireless slave device 210 associated with the key unit 202 (step S369). Then, the process returns to step S361 (return). The locking result is either a result indicating that the locking is successful or a result indicating an error indicating that the locking is not achieved.

  If the instruction sent from the home gateway 204 is neither an unlocking instruction nor a locking instruction (step S362: N, step S366: N), the CPU of the security center 206 takes care of other relevant processing (step S370). Then, the process returns to step S361 (return). The corresponding other processing refers to, for example, a change in the telephone number or mail address of the wireless slave device 210 or a change in notification format in step S365 or step S369. In the security system 200 according to the present embodiment, the wireless slave device 210 supports not only notification by e-mail but also notification by synthetic voice corresponding to an emergency, and the user can select these or depending on the situation Can be used in combination.

  The wireless slave device 210 may have a function only for communication with the home gateway 204 as used only for locking or unlocking control of the lock 203, but is not shown in the present embodiment. The unlocking result in step S365 and the locking result in step S369 can be received via the base station.

  FIG. 13 shows an example of reception processing of the locking / unlocking result on the wireless slave unit side. This will be described with reference to FIG.

  The wireless slave device 210 is a mobile communication terminal typified by a mobile phone or PHS, but may be a communication terminal that is further reduced in size than these phones with limited functions. The wireless slave unit 210 also performs control necessary for the security system 200 by executing a control program stored in a memory such as a ROM (Read Only Memory) by a built-in CPU.

  The CPU of the wireless slave device 210 waits for the unlocking result or the locking result to be received from the security center 206 (step S391, step S392). When the CPU receives the unlocking result (step S391: Y), it determines whether it is a normal result (step S393). The normal result in this case is a result that the lock 203 has been unlocked. Based on this, the CPU displays an icon indicating that the lock 203 is changed to the unlocked state on the display unit (not shown) of the wireless slave unit 210 (step S394), and returns the process to step S391 (return).

  If it is determined in step S393 that an error has occurred in unlocking the lock 203 (N), the CPU blinks an alarm icon on the display unit to indicate that an error has occurred. (Step S395), the process returns to step S391 (return).

  When the CPU receives the locking result (step S392: Y), it determines whether it is a normal result (step S393). The normal result in this case is a result that the lock 203 is locked. Based on this, the CPU displays an icon indicating that the lock 203 is changed to the locked state on the display unit of the wireless slave unit 210 to indicate that an error has occurred (step S394), and returns the process to step S391 (return).

  If it is determined in step S393 that an error has occurred in locking the lock 203 (N), the CPU blinks an alarm icon on the display unit (step S395), and the process proceeds to step S391. Return (return).

  Of course, when an electronic mail of unlocking or locking results is sent to the wireless slave unit 210 or voice information is sent and processing for these is programmed, an incoming e-mail is received according to the program. Display may be performed, or audio information reproduction processing may be performed.

  According to the security system 200 of the present embodiment described above, the user can store the received signal strength threshold in the received signal strength threshold storage unit 230 using the personal computer 208 shown in FIG. The received signal strength threshold can be changed according to (step S328 in FIG. 10). Therefore, the user checks how far the wireless slave unit 210 approaches or moves away from the user's house 201 and checks whether the lock 203 is unlocked or locked, and sets the reception signal strength threshold to an appropriate value. Can be adjusted to the value. That is, the user can freely adjust the area for locking and unlocking.

  Moreover, according to the present embodiment, the user can set the wireless slave device information about the wireless slave device 210 to be locked / unlocked in the home gateway 204. Therefore, when the wireless slave device 210 is stolen or lost, the user can change the wireless slave device information set in the home gateway 204 so that the user who has stolen or the wireless slave device 210 has acquired the unlocking / unlocking. Operation can be prevented. Of course, the user can resume the operation of the security system 200 by purchasing a new wireless slave device 210 and setting wireless slave device information corresponding to the new wireless slave device 210 in the home gateway 204.

  Further, according to the present embodiment, position information using a GPS or a base station is not necessary. For this reason, a small and inexpensive security system can be constructed.

  In the present embodiment described above, if the reception signal strength threshold is set to a small value to some extent, when the user returns home and the wireless handset 210 is in the house 201, the lock 203 is in an unlocked state. There is a risk of keeping. In order to prevent such a situation, the security center 106 transmits an unlocking instruction in step S349 in FIG. 11, confirms the release, and after a predetermined time has elapsed, the security center 106 transmits the locking instruction again. do it.

  In the present embodiment, the reception signal strength measuring unit 234 of the home gateway 204 is arranged in the key unit 202 or in the vicinity of the key unit 202 so that the wireless slave unit 210 approaches the closest distance of the key unit 202. It is also possible to unlock only at times. In the security system 200 in which the received signal strength threshold is set in this way, the user can simply lock the wireless slave unit 210 by passing through the entrance and moving to another location such as a room in the house 201. become. That is, by always carrying the wireless slave unit 210, the user can always keep the lock 203 in a locked state unless the key unit 202 is moved to a close distance, thereby eliminating the need for locking and unlocking operations. Security can be ensured.

  Further, in this embodiment, the authentication procedure is performed when the personal computer 208 accesses the home gateway 204. However, a person other than the user having the communication terminal such as the wireless slave device 210 can access the personal computer 208. If there is no possibility, the authentication procedure can be omitted. This is because the personal computer 208 itself is arranged inside the house 201 where the user resides.

  <First Modification of the Present Invention>

  FIG. 14 shows an outline of the configuration of the home gateway in the first modification of the present invention. In FIG. 14, the same parts as those in FIG. 8 of the previous embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate. In the first modification, the security system 200 shown in FIG. 7 is replaced with the security system 200A of the first modification, and the home gateway 204 is replaced with the home gateway 204A. Shall.

  In the security system 200A of the first modified example, the belonging state confirmation unit 401 for confirming the belonging state of the wireless slave device 210 shown in FIG. “Attribution” means that the wireless slave unit 210 is connected to the wireless LAN 209 using the wireless communication unit 224 and can communicate with the home gateway 204A (becomes a member of the LAN).

  The storage unit 226A is newly provided with a wireless slave device attribution information storage unit 411. The wireless slave unit attribution information storage unit 411 stores the value of the wireless LAN transmission output by the wireless communication unit 224. The home gateway 204A is not provided with the received signal strength measuring unit 234 existing in FIG. 8, and therefore, the storage unit 226A has the target wireless slave unit received signal strength information storage unit 229 and the received signal strength threshold storage unit 230. Is not provided. A control program corresponding to the first modification is stored in the control program storage unit 222A of the control unit 223A.

  FIG. 15 shows a security-related setting process in the home gateway according to the first modification. In FIG. 15, the same steps as those in FIG. 10 are denoted by the same step numbers, and description thereof will be omitted as appropriate. This will be described with reference to FIGS. 7, 9 and 14.

  The home gateway 204A waits for the personal computer 208 as a terminal to access (step S321), and when there is an access, information regarding the authentication screen is transmitted to the personal computer 208 (step S322). Thereafter, when the authentication procedure is performed and this is successful (step S323, step S324: Y), the home gateway 204A transmits a setting screen for allowing the user to perform various settings to the personal computer 208 (step S326).

  Thereafter, when the personal computer 208 performs a setting operation and transmits information input on the setting screen (step S309 in FIG. 9), the home gateway 204A receives this (step S327: Y in FIG. 15). If the target wireless slave device information is received, it is overwritten on the target wireless slave device information storage unit 228. If the information related to the wireless LAN transmission output is received, this is replaced with the wireless slave device attribution information storage unit 411. Is overwritten (step S501). Thereafter, the security-related setting process ends (END).

  FIG. 16 shows a state of lock / unlock processing by the home gateway in the first modification. This will be described with reference to FIGS. 14 and 7.

  The home gateway 204A monitors the timing at which the mobile terminal 105 as a wireless terminal belongs to the wireless LAN of the home gateway 204A, or the timing at which it is removed (steps S521 and S522). When the portable terminal 105 detects a signal transmitted from the wireless communication unit 224 and communicates with the home gateway 204A by starting communication (step S521: Y), the control unit 223A instructs to unlock the lock 203. Is transmitted to the security center 206 (step S523). Then, identification information such as the telephone number of the mobile terminal 105 to which it belongs is stored in the wireless slave device attribution information storage unit 411 (step S524), and the processing returns to step S521 (return).

  The processing on the security center 206 side that receives the unlocking instruction is basically the same as that shown in FIG. However, when the user enters the house 201, the transmission output is variable, but the wireless communication unit 224 is transmitting with a transmission output that enables communication with other wireless terminals in each place in the house 201. is assumed. Therefore, as long as the user has the portable terminal 105 and is in the house 201, it is considered that the portable terminal 105 normally belongs to the wireless LAN continuously thereafter.

  Therefore, when the security center 206 according to the first modification receives the unlocking instruction in step S523, the security center 206 transmits the unlocking instruction to the address of the key unit 202 that has been instructed, while being relatively predetermined. Send the locking instruction again after a short time. Therefore, the user can enter the house 201 from the entrance during this relatively short time, and thereafter, the locked state of the lock 203 can be maintained.

  Further, assuming that the user's mobile terminal 105 entering the house 201 temporarily leaves the wireless LAN due to battery exhaustion or the like and then belongs to the wireless LAN, the lock 203 is set for a predetermined relatively short time. Is unlocked, but then it is locked. Therefore, it is practically impossible for a third party who cannot predict the unlocking timing to enter the house 201 using this period.

  Next, a case where the user leaves the house 201 will be described. When the user goes out of the entrance and the mobile terminal 105 leaves the wireless LAN and cannot communicate with the home gateway 204A (step S522: Y), the control unit 223A transmits a lock instruction for the lock 203 to the security center 206. (Step S525). Then, the identification information such as the telephone number of the detached mobile terminal 105 is deleted from the wireless slave device attribution information storage unit 411 (step S526), and the process returns to step S521 (return).

  In this case, the user needs to manually unlock when going out of the entrance. This is because in a normal state, the mobile terminal 105 is in a state belonging to the wireless LAN in the house 201. Of course, when the user turns off the power switch (not shown) of the portable terminal 105 once at the time immediately before leaving the entrance, the user is forced to leave the portable terminal 105 from the wireless LAN, and then the lock is made. Unlocking 203 can be automatically performed. In addition, a button for transmitting an unlocking instruction similar to that in step S523 to the security center 206 may be attached to the portable terminal 105.

  In the first modification, the user stores the value of the wireless LAN transmission output by the wireless communication unit 224 in the wireless slave unit attribution information storage unit 411 and can adjust the value appropriately. As a result, as in the previous embodiment, when the user approaches the house 201, the adjustment (such as from which point (distance) to give the unlocking instruction of the lock 203), and the point (distance) when the user goes out. It is possible to adjust whether or not to give a lock instruction for the lock 203.

  In the first modification, the transmission output of the wireless communication unit 224 is changed. However, it is also possible to provide a threshold for the intensity of the radio wave received by the wireless communication unit 224. In addition, even if the user changes the transmission output of the mobile terminal 105 itself, it is natural that the area of the area where locking / unlocking can be controlled can be controlled.

  Further, according to the first modification, the key 203 is locked and unlocked depending on whether or not the wireless slave device 210 belongs to the home gateway 204A, so that the control of the key 203 is ensured even in a situation where the radio wave environment is unstable. There is also an effect that can be done.

  <Second Modification of the Present Invention>

  FIG. 17 shows an outline of the configuration of the security system in the second modification of the present invention. In FIG. 17, the same parts as those in FIG. 7 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  In the security system 200B of the second modified example, the key unit 202B incorporates a functional unit related to the present invention in the home gateway 204 shown in FIG. Further, the wireless slave device 210 can be connected to the Internet 205 via the wireless base station 601.

  In the second modification, the received signal strength measurement unit 234 (FIG. 8) detects the strength of radio waves when communicating with the radio base station 601 of the radio slave unit 210B, and adjusts the threshold value to unlock and unlock. Controls the width of the area where the image appears The wireless slave unit 210B accesses the key unit 202B via the Internet 205 and sets or changes the received signal strength threshold value stored in the received signal strength threshold value storage unit 230 (FIG. 8) of the storage unit 226 (FIG. 8). Is possible.

  According to the second modification, the user can lock or unlock the lock 203 simply by placing the key unit 202B at the entrance of the house 201 shown in FIG. 7 and connecting it to a home gateway (not shown) wirelessly or the like. Can be performed electronically, and security can be ensured.

  Some or all of the embodiments described above are described as in the following supplementary notes, but are not limited to the following descriptions.

(Appendix 1)
A specific area access control means for prohibiting a person from entering a specific area where security should be secured in a locked state and enabling it in an unlocked state;
Locking / unlocking instruction means for instructing the locking state or unlocking state for the specific area entry control means arranged outside the specific area by transmitting an electric signal;
When the specific area entry control means is unlocked, a radio signal from a portable terminal held by a person who enters and exits between the specific area and an external area outside the specific area is received at a place where the specific area entry control means exists. Wireless receiving means for
When the wireless receiving means starts detecting a wireless signal having a strength exceeding a predetermined threshold, it sends a signal requesting the unlocking instruction means to change to the unlocked state, and A locking / unlocking instruction requesting means for sending a signal requesting a change to the locking state to the locking / unlocking instruction means when starting detection;
A security system comprising: a threshold value changing means including an input means for manually changing the threshold value.

(Appendix 2)
A specific area access control means for prohibiting a person from entering a specific area where security should be secured in a locked state and enabling it in an unlocked state;
Locking / unlocking instruction means for instructing the locking state or unlocking state for the specific area entry control means arranged outside the specific area by transmitting an electric signal;
A transmission output setting means for setting a wireless transmission output to a portable terminal possessed by a person who enters and exits between the specific area and an external area outside the specific area when the specific area access control means is unlocked;
Radio receiving means for receiving a radio signal from the portable terminal at a location where the specific area entry control means exists;
When it is determined that wireless communication with the portable terminal is enabled by the wireless receiving means, a signal requesting a change to the unlocked state is sent to the unlocking instruction means, and A locking / unlocking instruction requesting means for sending a signal requesting a change to the locking state to the locking / unlocking instruction means when it is determined that wireless communication is impossible;
A security system comprising: a transmission output changing means having an input means for manually changing the transmission output.

(Appendix 3)
It is connected to the Internet and is located at the boundary between a specific area where a specific person should ensure security and an external area located outside the area. A specific area entry control means,
A portable terminal possessed by a person who enters and exits between the specific area and the external area outside the specific area when the specific area access control means is unlocked; and
A security center that sends instructions for the locked state and unlocked state to the specific area entry control means from the external area via the Internet;
Wireless communication means that communicates with the mobile terminal disposed in the specific area, Internet connection means that connects to the Internet, strength measurement means that measures the strength of radio waves during communication of the wireless communication means, and this strength measurement Threshold storage means for storing a threshold value to be compared with the intensity measured by the means, and the portable terminal as a result of comparing the threshold value stored in the threshold value storage means with the intensity measured by the intensity measurement means for a predetermined number of times. The unlock request data transmitting means for determining that the distance corresponding to the threshold has been approached and transmitting the unlock request data for requesting the unlocking instruction of the specific area access control means to the security center; and As a result of comparing the threshold value with the intensity measured by the intensity measuring means a predetermined number of times, the portable terminal corresponds to the threshold value from the intensity measuring means. The lock request data transmitting means for determining that it has moved away and requesting the lock instruction of the specific area entry control means to the security center, and the threshold stored in the threshold storage means A security system comprising: a device in a specific area provided with a threshold value changing means for changing manually.

(Appendix 4)
It is connected to the Internet and is located at the boundary between a specific area where a specific person should ensure security and an external area located outside the area. A specific area entry control means,
A portable terminal possessed by a person who enters and exits between the specific area and the external area outside the specific area when the specific area access control means is unlocked; and
A security center that sends instructions for the locked state and unlocked state to the specific area entry control means from the external area via the Internet;
Wireless communication means that communicates with the mobile terminal disposed in the specific area, Internet connection means that connects to the Internet, transmission output setting means that sets radio wave transmission output of the wireless communication means, and transmission output setting It is said that communication is possible with the belonging time discriminating means for discriminating the belonging time as the time when wireless communication with the portable terminal becomes possible with respect to the radio wave of the transmission output set by the means, and this belonging time discriminating means Unlock request data for determining that the portable terminal is within the range of the specific area corresponding to the transmission output at the time of determination, and requesting the security center to request unlocking of the specific area access control means Wireless communication with the portable terminal with respect to the radio wave of the transmission output set by the transmission output setting means and the unlock request data transmission means for transmitting The departure time determination means for determining the departure time as the time when it becomes impossible, and the specific area corresponding to the transmission output by the portable terminal when it is determined by the departure time determination means that communication is impossible The lock request data transmitting means for transmitting the lock request data requesting the lock instruction of the specific area entry control means to the security center, and the transmission output setting means set the set A security system comprising: a device in a specific area provided with transmission output changing means for manually changing transmission output.

(Appendix 5)
When the locking / unlocking instruction request unit sends a signal requesting a change to the unlocking state, the locking / unlocking instruction unit receiving the signal immediately instructs the specific area entry control unit of the unlocking state, The security system according to appendix 1, wherein the unlocking state is instructed after a predetermined time has elapsed since the unlocking state was instructed.

(Appendix 6)
When the unlock request data transmission means transmits the unlock request data, the security center that receives the unlock request data immediately instructs the specific area entry control means of the unlock state and also indicates the unlock state. 6. The security system according to appendix 4, wherein the locked state is instructed after a predetermined time has elapsed.

(Appendix 7)
The security system according to claim 4, wherein the specific area device includes a home gateway and a personal computer connected to the home gateway by a LAN, and the personal computer constitutes the specific area device.

(Appendix 8)
The home gateway is connected to the portable terminal by a wireless LAN, and the availability or inability of the wireless communication is determined by the belonging of the portable terminal to the wireless LAN or the detachment of the portable terminal. Security system.

(Appendix 9)
The security system according to claim 1, wherein the threshold value changing means is configured by an information processing device arranged in the specific area.

(Appendix 10)
The security system according to claim 1, wherein the threshold value changing unit is provided in the portable terminal, and the portable terminal is connected to the locking / unlocking instruction request unit via a radio base station.

(Appendix 11)
The security system according to appendix 2, wherein the transmission output changing means is constituted by an information processing device arranged in the specific area.

(Appendix 12)
The security system according to claim 2, wherein the transmission output changing means is provided in the portable terminal, and the portable terminal is connected to the locking / unlocking instruction requesting means via a radio base station.

(Appendix 13)
A locking / unlocking step that locks the door when there is an instruction to lock the door used to enter a specific area where security is to be secured, and unlocks the door when there is an instruction to unlock;
Instruction for unlocking when the reception intensity of a radio wave transmitted from a portable terminal held by a person who enters and exits between the specific area and an external area outside the area where the door is present exceeds a predetermined threshold value Unlocking instruction step to perform,
The lock instruction when the reception intensity of the radio wave transmitted from the portable terminal held by the person who enters and exits between the specific area and the external area outside the area where the door exists is less than a predetermined threshold value. A locking instruction step,
And a threshold value changing step of manually changing the threshold value within the specific area.

(Appendix 14)
14. The door locking / unlocking control method according to appendix 13, further comprising a locking instruction locking step for locking after a predetermined time has elapsed when the unlocking instruction is performed in the unlocking instruction step.

(Appendix 15)
On the computer,
A locking / unlocking process that locks the door when there is an instruction to lock the door used to enter a specific area where security is to be ensured, and unlocks the door when there is an instruction to unlock;
Instruction for unlocking when the reception intensity of a radio wave transmitted from a portable terminal held by a person who enters and exits between the specific area and an external area outside the area where the door is present exceeds a predetermined threshold value Unlocking instruction processing to perform,
The lock instruction when the reception intensity of the radio wave transmitted from the portable terminal held by the person who enters and exits between the specific area and the external area outside the area where the door exists is less than a predetermined threshold value. Locking instruction processing to perform,
A door locking / unlocking control program for executing threshold change processing for manually changing the threshold within the specific area.

(Appendix 16)
14. The door unlocking method according to appendix 13, wherein when the unlocking instruction is performed in the unlocking instruction process, the computer further executes a locking instruction locking process for locking after a predetermined time elapses. Lock control program.

10, 20, 30, 40, 200, 200A, 200B Security system 11, 21, 31, 41 Specific area access control means 12, 22 Lock / unlock instruction means 13, 24 Wireless reception means 14, 25 Lock / unlock instruction request means 15, 34g Threshold changing means 23, 44 Transmission output setting means 26, 44h Transmission output changing means 32, 42 Mobile terminal 33, 43, 206 Security center 34, 44 Devices in specific area 34a, 44a Wireless communication means 34b, 44b Internet connection means 34c Strength measurement means 34d Threshold storage means 34e, 44e Unlock request data transmission means 34f, 44g Lock request data transmission means 44d Attribution time determination means 44f Departure time determination means 50 Door unlocking control method 51 Unlocking step 52 Unlocking instruction step 53 Locking instruction step 54 Threshold Change Step 60 Door Locking / Unlocking Control Program 61 Locking / Unlocking Process 62 Unlocking Instruction Processing 63 Locking Instruction Processing 64 Threshold Value Changing Process 201 House 202, 202B Key Unit 203 Lock 204, 204A Home Gateway 205 Internet 208 Personal Computer 210, 210B Wireless Handset 221 CPU
222, 222A Control program storage unit 223, 223A Control unit 224 Wireless communication unit 225 Wired communication unit 226, 226A Storage unit 228 Target wireless slave unit information storage unit 229 Target wireless slave unit received signal strength information storage unit 230 Received signal strength threshold storage Unit 231 Locking instruction data storage unit 232 Unlocking instruction data storage unit 233 Measurement interval data storage unit 234 Received signal strength measurement unit 235 Enforcement determination unit 401 Attribution state confirmation unit 411 Wireless slave unit attribution information storage unit 601 Wireless base station

Claims (10)

A specific area access control means for prohibiting a person from entering a specific area where security should be secured in a locked state and enabling it in an unlocked state;
Locking / unlocking instruction means for instructing the locking state or unlocking state for the specific area entry control means arranged outside the specific area by transmitting an electric signal;
When the specific area entry control means is unlocked, a radio signal from a portable terminal held by a person who enters and exits between the specific area and an external area outside the specific area is received at a place where the specific area entry control means exists. Wireless receiving means for
When the wireless receiving means starts detecting a wireless signal having a strength exceeding a predetermined threshold, it sends a signal requesting the unlocking instruction means to change to the unlocked state, and A locking / unlocking instruction requesting means for sending a signal requesting a change to the locking state to the locking / unlocking instruction means when starting detection;
A security system comprising: a threshold value changing means including an input means for manually changing the threshold value. A specific area access control means for prohibiting a person from entering a specific area where security should be secured in a locked state and enabling it in an unlocked state;
Locking / unlocking instruction means for instructing the locking state or unlocking state for the specific area entry control means arranged outside the specific area by transmitting an electric signal;
A transmission output setting means for setting a wireless transmission output to a portable terminal possessed by a person who enters and exits between the specific area and an external area outside the specific area when the specific area access control means is unlocked;
Radio receiving means for receiving a radio signal from the portable terminal at a location where the specific area entry control means exists;
When it is determined that wireless communication with the portable terminal is enabled by the wireless receiving means, a signal requesting a change to the unlocked state is sent to the unlocking instruction means, and A locking / unlocking instruction requesting means for sending a signal requesting a change to the locking state to the locking / unlocking instruction means when it is determined that wireless communication is impossible;
A security system comprising: a transmission output changing means having an input means for manually changing the transmission output. It is connected to the Internet and is located at the boundary between a specific area where a specific person should ensure security and an external area located outside the area. A specific area entry control means,
A portable terminal possessed by a person who enters and exits between the specific area and the external area outside the specific area when the specific area access control means is unlocked; and
A security center that sends instructions for the locked state and unlocked state to the specific area entry control means from the external area via the Internet;
Wireless communication means that communicates with the mobile terminal disposed in the specific area, Internet connection means that connects to the Internet, strength measurement means that measures the strength of radio waves during communication of the wireless communication means, and this strength measurement Threshold storage means for storing a threshold value to be compared with the intensity measured by the means, and the portable terminal as a result of comparing the threshold value stored in the threshold value storage means with the intensity measured by the intensity measurement means for a predetermined number of times. The unlock request data transmitting means for determining that the distance corresponding to the threshold has been approached and transmitting the unlock request data for requesting the unlocking instruction of the specific area access control means to the security center; and As a result of comparing the threshold value with the intensity measured by the intensity measuring means a predetermined number of times, the portable terminal corresponds to the threshold value from the intensity measuring means. The lock request data transmitting means for determining that it has moved away and requesting the lock instruction of the specific area entry control means to the security center, and the threshold stored in the threshold storage means A security system comprising: a device in a specific area provided with a threshold value changing means for changing manually. It is connected to the Internet and is located at the boundary between a specific area where a specific person should ensure security and an external area located outside the area. A specific area entry control means,
A portable terminal possessed by a person who enters and exits between the specific area and the external area outside the specific area when the specific area access control means is unlocked; and
A security center that sends instructions for the locked state and unlocked state to the specific area entry control means from the external area via the Internet;
Wireless communication means that communicates with the mobile terminal disposed in the specific area, Internet connection means that connects to the Internet, transmission output setting means that sets radio wave transmission output of the wireless communication means, and transmission output setting It is said that communication is possible with the belonging time discriminating means for discriminating the belonging time as the time when wireless communication with the portable terminal becomes possible with respect to the radio wave of the transmission output set by the means, and this belonging time discriminating means Unlock request data for determining that the portable terminal is within the range of the specific area corresponding to the transmission output at the time of determination, and requesting the security center to request unlocking of the specific area access control means Wireless communication with the portable terminal with respect to the radio wave of the transmission output set by the transmission output setting means and the unlock request data transmission means for transmitting The departure time determination means for determining the departure time as the time when it becomes impossible, and the specific area corresponding to the transmission output by the portable terminal when it is determined by the departure time determination means that communication is impossible The lock request data transmitting means for transmitting the lock request data requesting the lock instruction of the specific area entry control means to the security center, and the transmission output setting means set the set A security system comprising: a device in a specific area provided with transmission output changing means for manually changing transmission output.   When the locking / unlocking instruction request unit sends a signal requesting a change to the unlocking state, the locking / unlocking instruction unit receiving the signal immediately instructs the specific area entry control unit of the unlocking state, 2. The security system according to claim 1, wherein the unlocking state is instructed after a predetermined time has elapsed since the unlocking state was instructed.   When the unlock request data transmission means transmits the unlock request data, the security center that receives the unlock request data immediately instructs the specific area entry control means of the unlock state and also indicates the unlock state. 5. The security system according to claim 4, wherein the locked state is instructed after a predetermined time has elapsed.   5. The security system according to claim 4, wherein the device in the specific area includes a home gateway and a personal computer connected to the home gateway via a LAN, and the personal computer constitutes the device in the specific area.   8. The home gateway is connected to the portable terminal by a wireless LAN, and the availability or inability of the wireless communication is determined by the belonging of the portable terminal to the wireless LAN or the detachment of the portable terminal. The security system described. A locking / unlocking step that locks the door when there is an instruction to lock the door used to enter a specific area where security is to be secured, and unlocks the door when there is an instruction to unlock;
Instruction for unlocking when the reception intensity of a radio wave transmitted from a portable terminal held by a person who enters and exits between the specific area and an external area outside the area where the door is present exceeds a predetermined threshold value Unlocking instruction step to perform,
The lock instruction when the reception intensity of the radio wave transmitted from the portable terminal held by the person who enters and exits between the specific area and the external area outside the area where the door exists is less than a predetermined threshold value. A locking instruction step,
And a threshold value changing step of manually changing the threshold value within the specific area. On the computer,
A locking / unlocking process that locks the door when there is an instruction to lock the door used to enter a specific area where security is to be ensured, and unlocks the door when there is an instruction to unlock;
Instruction for unlocking when the reception intensity of a radio wave transmitted from a portable terminal held by a person who enters and exits between the specific area and an external area outside the area where the door is present exceeds a predetermined threshold value Unlocking instruction processing to perform,
The lock instruction when the reception intensity of the radio wave transmitted from the portable terminal held by the person who enters and exits between the specific area and the external area outside the area where the door exists is less than a predetermined threshold value. Locking instruction processing to perform,
A door locking / unlocking control program for executing threshold change processing for manually changing the threshold within the specific area.

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