JP2007279844A - Radio communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio communication system variously setting a security level while facilitating the setting of the security level. <P>SOLUTION: In a dwelling house 10, a wireless LAN access point 15 that is a relay point of radio waves is provided on a LAN cable 11. An entrance door 18 is provided with an electric lock 21, and locking and unlocking control of the electric lock 21 is made by an electric lock controller 22. An infrared communication device 24 is set near the entrance door outside the dwelling house 10. The electric lock controller 22 is communicable with an operation terminal 16 by the two radio communication means of wireless LAN communication and infrared communication, and the security level is changed according to the communication state of wireless LAN communication and infrared communication. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wireless communication system that can be suitably used for building security management and the like.

  Conventionally, many wireless communication technologies for transmitting and receiving various kinds of information by wireless communication have been proposed, and various security technologies for the wireless communication have been proposed. For example, in Patent Document 1, one of a plurality of types of usage locations is selected, and an operation environment for wireless communication is selected according to the selected usage location, by a station discovery request ( The mode is set so as not to respond to a request for discovering a device capable of wireless communication. Thus, the security level of the wireless communication can be easily changed according to the wireless communication location. For example, when a portable computer device (for example, a notebook personal computer) is used, the security level is automatically changed according to the use location.

  However, in the technique of Patent Document 1, the security level depends on the computer device, and there is a possibility that a desired security level cannot be set depending on the computer device used each time. In addition, when the computer device to be used is changed, the security level is reset by the change, so that the security setting is forced every time the computer device is changed.

Further, in a building such as a house, a technique has been proposed in which an electric lock is attached to a front door and the electric lock is locked or unlocked by a transmission signal from a portable device (electric key or the like). In such a case, it is also conceivable to apply the above-described conventional technique to an electric lock locking / unlocking control system, and change the operating environment of the portable device according to the place of use to set the security level. However, when the portable device is changed, there is a possibility that a desired security level cannot be set.
JP 2004-96306 A

  The main object of the present invention is to provide a wireless communication system that can set various security levels and can easily set the security level.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary. In the following, in order to facilitate understanding, a corresponding configuration example in the embodiment of the invention is appropriately shown in parentheses, etc., but is not limited to the specific configuration shown in parentheses.

  Means 1. In the wireless communication system of the present invention, a plurality of wireless communication means (wireless LAN communication means, infrared communication means, etc.) having different communication paths or communication media, a portable device (operation terminal 16) that can be held by the user, And a computer device (electric lock controller 22) capable of wireless communication with the device by the plurality of wireless communication means. And a security level is changed according to the communication condition of a some radio | wireless communication means.

  According to the above configuration, since the security level depends on the communication status of a plurality of wireless communication means, unlike the technology in which the security level depends on the device side (computer device, portable device), the portable device or the like Even if it is changed, a desired security level can be easily realized. In this case, an individual security level can be set for each wireless communication means, and a high security level can be realized by combining the security levels for each wireless communication means. As a result, it is possible to realize a wireless communication system that can set various security levels and can easily set the security level.

  Mean 2. The portable device is an operation terminal for performing the locking / unlocking operation of the electric lock (electric lock 21) provided at the entrance / exit of the building (entrance door 18), and the computer device performs various controls (unlocking / unlocking of the electric lock). It may be an electric lock control device that performs lock control. In this configuration, when the operation terminal is operated by the user, the electric lock control device performs locking / unlocking control of the electric lock in response thereto. In this case, as described above, it is possible to diversify and facilitate the setting of the security level, so that a desirable locking / unlocking system can be constructed.

  Means 3. The electric lock control device lowers the security level and executes the unlocking of the electric lock in response to the received signal from the portable device, and raises the security level and rejects the unlocking of the electric lock. It is good to switch according to the communication status of a plurality of wireless communication means. According to this configuration, appropriate locking / unlocking control can be realized according to the security level of each time.

  Means 4. The electric lock control device may permit the confirmation of the locked / unlocked state of the electric lock in response to the received signal from the portable device when the security level is raised. In this case, since the security level is high, the electric lock cannot be unlocked, but the locking / unlocking confirmation can be performed.

  Means 5. The portable device may be an operation terminal for performing a setting operation or a release operation of a crime prevention mode of the building, and the computer device may be a security control device that performs various controls related to security management in the building. In this configuration, when the operation terminal is operated by the user, the security control apparatus sets / cancels the crime prevention mode in response thereto. In this case, since it is possible to diversify and facilitate the setting of the security level as described above, a desirable security system can be constructed.

  Incidentally, in the configuration of the means 5, the security control device lowers the security level and sets / cancels the security mode in response to the received signal from the portable device, and increases the security level, The state in which setting / cancellation is prohibited may be switched according to the communication status of the plurality of wireless communication means. The security control device may permit the security mode state confirmation in response to a received signal from the portable device when the security level is increased.

  Means 6. It is preferable to switch which wireless communication means can communicate between the portable device and the computer device according to the position of the portable device. According to this configuration, when the user moves with the portable device, the communication status of the plurality of wireless communication means changes according to the position of the user (the position of the portable device), and the security level is changed accordingly. . In this case, the security level can be variably set according to the position of the user (the position of the portable device).

  For example, when the lock control of the electric lock is performed, the unlocking of the electric lock can be permitted or prohibited according to the position of the user (position of the portable device).

  Mean 7 Among a plurality of wireless communication means, one is a wide area wireless communication means (wireless LAN communication means) having a relatively wide area wireless communication area, and the other is a narrow area having a relatively narrow area wireless communication area. Wireless communication means (infrared communication means) is preferable. In this case, by using the wide-area wireless communication means and the narrow-area wireless communication means, an area that can be communicated by the respective communication means and an area that can be communicated by any one of the communication means are set. be able to. This makes it easy to variably set the security level according to the position of the user (the position of the mobile device).

  Means 8. In the wireless communication system as the second invention, wireless communication is possible by a plurality of wireless communication means (wireless LAN communication means, infrared communication means, etc.) having different communication paths or communication media, and the plurality of wireless communication means, And a computer device (personal computer 31) that performs various controls based on a communication result when wireless communication is performed by each wireless communication unit. And a security level is changed according to the communication condition of a some radio | wireless communication means.

  According to the above configuration, since the security level depends on the communication status of a plurality of wireless communication means, the computer device is changed unlike the conventional technology in which the security level depends on the computer device. However, a desired security level can be easily realized. In this case, an individual security level can be set for each wireless communication means, and a high security level can be realized by combining the security levels for each wireless communication means. As a result, it is possible to realize a wireless communication system that can set various security levels and can easily set the security level.

  Means 9. The present invention is applied to a system including a memory device (hard disk 31b) for storing electronic data, and the computer device (arithmetic processing unit 31a of the personal computer 31) being accessible to the memory device. The state in which the security level is lowered and the access to the memory device by the computer device is permitted, and the state in which the security level is raised and the access to the memory device by the computer device is prohibited are communicated by a plurality of wireless communication means. Switch according to the situation. According to this configuration, it is possible to appropriately manage access to the memory device in accordance with each security level.

  Means 10. The present invention is applied to a system including a plurality of memory devices (hard disk 31b, server device 35) and capable of accessing a plurality of memory devices by a computer device (arithmetic processing unit 31a of the personal computer 31). The memory device that can be accessed by the computer device among the plurality of memory devices may be changed according to the security level. For example, in a configuration using a plurality of memory devices with different secrecy, when the security level is increased, access to the memory device with high secrecy is restricted, and when the security level is lowered, the secrecy is high. It is advisable to allow access to the memory device.

  Means 11. The computer device is a mobile computer device having a display screen, and the display content of the display screen may be changed according to the communication status of a plurality of wireless communication means. In this case, the display content can be changed according to the security level.

  Means 12. It is preferable to switch which wireless communication means is communicable in the computer apparatus according to the position of the computer apparatus. According to this configuration, the communication status of the plurality of wireless communication means changes depending on where the computer device (for example, a notebook personal computer) is used, and the security level is changed accordingly. In this case, the security level can be variably set according to the place of use of the computer device.

  Means 13. Among a plurality of wireless communication means, one is a wide area wireless communication means (wireless LAN communication means) having a relatively wide area wireless communication area, and the other is a narrow area having a relatively narrow area wireless communication area. Wireless communication means (infrared communication means) is preferable. In this case, by using the wide-area wireless communication means and the narrow-area wireless communication means, an area that can be communicated by the respective communication means and an area that can be communicated by any one of the communication means are set. be able to. It is easy to variably set the security level according to the place where the computer device is used.

  Specific means for changing the security level according to the communication status of a plurality of wireless communication means are shown in the following means 14 to 17.

  Means 14. The security level is changed according to which communication path or which communication medium is used for communication in a plurality of wireless communication means. In this case, the security level can be easily changed by providing a difference in security level for each communication path or communication medium.

  Means 15. The security level is changed according to the order in which communication is possible in a plurality of wireless communication means. In this case, the security level can be easily changed by providing a difference in security level for each order in which communication is possible.

  Means 16. The security level is changed according to the number of wireless communication means that can communicate simultaneously with a plurality of wireless communication means. In this case, for example, when the number of wireless communication means that can simultaneously communicate (the number of overlapping wireless communication means) is large, the security level may be lowered as compared with the case where the number of wireless communication means is small.

  Means 17. When authentication is performed for each of the plurality of wireless communication means, the security level is changed according to which of the predetermined authentication patterns it corresponds to. For example, in a configuration in which a simple authentication pattern and a complicated authentication pattern exist, the security level may be lowered when the authentication pattern corresponds to a complicated authentication pattern.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a home network system that controls equipment and home appliances in a home via a communication network is constructed, and an outline thereof is shown in FIG. A house equipped with such a network system is also called an intelligent house.

  In FIG. 1, a LAN cable 11 is laid as a first communication medium in a house 10, and various electric devices such as an air conditioner (air conditioner) 12 and a lighting fixture 13 are connected to the LAN cable 11. ing. A wireless LAN access point 15 that is a relay point for radio waves is provided on the LAN cable 11, and wireless LAN communication is performed with the operation terminal 16 that is a portable terminal device using the wireless LAN access point 15. Is appropriately performed.

  In the operation terminal 16, automatic operation menus such as the air conditioner 12 and the lighting fixture 13 are set as operation menus, and the display screen of the operation terminal 16 displays a list of facilities that can be operated, the operation status of each operation, and the like. Is displayed in a timely manner. When the user performs an operation input as desired while looking at the display screen of the operation terminal 16, the air conditioner 12, the lighting fixture 13, and the like are remotely operated to a desired state. For example, the air conditioner 12 is controlled such as ON / OFF (operation and operation stop), set temperature adjustment, air volume adjustment, and wind direction adjustment. The lighting fixture 13 is controlled such as ON / OFF (lighting and extinguishing) and illuminance adjustment. In this case, each device connected to the LAN cable 11 is controlled and operated in various ways by one operation terminal 16.

  Furthermore, an electric lock 21 provided on the entrance door 18 is connected to the LAN cable 11, and an electric lock controller 22 that controls the locking and unlocking of the electric lock 21 is connected. The electric lock 21 is incorporated in, for example, a door knob of the entrance door 18 and can be electrically switched between a locked state and an unlocked state. The entrance door 18 is locked when the electric lock 21 is locked, and the entrance door 18 is unlocked when the electric lock 21 is unlocked.

  The operation terminal 16 has a remote operation function of the electric lock 21, and when the user operates the operation terminal 16, an unlock command signal (radio wave signal) for the electric lock 21 is output. In this case, when the unlock command signal is input to the electric lock controller 22 via the wireless LAN access point 15 or the LAN cable 11, the unlocking process of the electric lock 21 is performed by the electric lock controller 22.

  An infrared communication device 24 is installed near the entrance door on the outdoor side of the house 10. The infrared communication device 24 has an infrared signal transmission function and a reception function, and performs infrared communication with the operation terminal 16. The infrared communication device 24 is connected to the electric lock controller 22 via a communication cable 25 as a second communication medium.

  In short, the electric lock controller 22 on the house 10 side and the operation terminal 16 can communicate with each other by two types of wireless communication means, that is, wireless LAN communication and infrared communication. Here, in the lock / unlock control of the electric lock 21, both the wireless LAN communication and the infrared communication are performed by the operation terminal 16. In such a case, as wireless LAN communication by the operation terminal 16, the electric lock controller 22 transmits a radio signal transmitted from the operation terminal 16 through a communication path (wireless LAN communication path R 1 in FIG. 1) including the wireless LAN access point 15 and the LAN cable 11. Is input. Further, as infrared communication by the operation terminal 16, a radio signal transmitted from the operation terminal 16 is input to the electric lock controller 22 through a communication path (infrared communication path R2 in FIG. 1) including the infrared communication device 24 and the communication cable 25. .

  The wireless LAN communication and the infrared communication each define a communicable area, and the wireless LAN communication and the infrared communication are established on the condition that the operation terminal 16 is in the communicable area. For example, each of the wireless LAN access point 15 and the infrared communication device 24 is configured to periodically output a request signal. When the operation terminal 16 responds to each request signal, the wireless LAN access point 15 and the infrared communication device 24 each within the communicable area. Is determined to have been established.

  Note that wireless LAN communication is a wide area communication means that covers a relatively wide area, and infrared communication is a narrow area communication means that covers a relatively narrow area. Specifically, the wireless LAN communication can communicate over a certain amount of obstacles, and the communication distance is about 30 to 100 m. In contrast, infrared communication has directivity, and communication beyond an obstacle is not possible. The communication distance is about 10 m.

  FIG. 2 is a schematic diagram showing a communicable area for wireless LAN communication and infrared communication in the house 10 and its surrounding area. In FIG. 2, the wireless LAN access point 15 is installed almost at the center of the house 10, and a communicable area for wireless LAN communication (hereinafter referred to as a wireless LAN area A <b> 1) covers all of the house 10 and its surrounding area. It has become. The infrared communication device 24 is installed on the outer wall of the house on the side of the entrance door 18, and an infrared communication area (hereinafter referred to as infrared area A <b> 2) is an outdoor area around the entrance door.

Here, the house 10 and its surrounding area can be classified into any of the following areas B1 to B4.
Area B1: Area included in both the wireless LAN area A1 and the infrared area A2 Area B2: Area included in the wireless LAN area A1, but not included in the infrared area A2, Area B3: included in the wireless LAN area A1 Area B4 included in infrared area A2: Area not included in both wireless LAN area A1 and infrared area A2 However, wireless LAN area A1 is sufficiently large and infrared area A2 is completely wireless The configuration included in the LAN area A1 may be used. In this case, area B3 does not exist.

The communication path (communication medium) used between the operation terminal 16 and the electric lock controller 22 differs depending on which of the operation terminals 16 is in the areas B1 to B4. That is,
(1) When the operation terminal 16 is in the area B1, the communication paths are two paths of the wireless LAN communication path R1 and the infrared communication path R2 in FIG.
(2) When the operation terminal 16 is in the area B2, the communication path is only the wireless LAN communication path R1.
(3) When the operation terminal 16 is in the area B3, the communication path is only the infrared communication path R2.
(4) When the operation terminal 16 is in the area B4, no communication path is established.

  In the present embodiment, as described in (1) above, when communication is established through two communication paths R1 and R2, authentication is performed through each communication path R1 and R2 in response to an unlocking request from the operation terminal 16. If the authentication is correct, the electric lock controller 22 unlocks the electric lock 21. In terms of the security level in the present system, in the case of (1) above, the security level is lowered, and the electric lock controller 22 can be unlocked by the electric lock controller 22. On the other hand, except for the above (1), the security level is raised and the electric lock controller 22 cannot be unlocked by the electric lock controller 22.

  FIG. 3 is a flowchart showing the unlocking process of the electric lock 21, and this process is repeatedly executed by the electric lock controller 22 at a predetermined time period. However, the configuration shown in FIG. 3 may be activated and then repeatedly executed on condition that the operation terminal 16 enters the wireless LAN area A1 or the infrared area A2.

  First, in step S101, it is determined whether an unlock command signal (unlock request) has been received from the operation terminal 16. If this is affirmed, the process proceeds to step S102, and if this is denied, this process is terminated. For example, when the user goes home from the outside and performs the unlocking operation of the operation terminal 16 near the entrance door (in the wireless LAN area A1), an unlock command signal is transmitted from the operation terminal 16 by wireless LAN communication. Step S101 is affirmed.

  After receiving the unlock command signal, steps S102 to S104 are processes for performing authentication by wireless LAN communication, and steps S105 to S107 are processes for performing authentication by infrared communication. Then, the electric lock 21 is locked or unlocked according to the two authentication results. Here, when both wireless LAN communication and infrared communication are established (when both radio waves reach), the security level is lowered and the electric lock 21 can be unlocked, and only one of the communications is established. If it is performed (when both radio waves do not reach), the security level is raised and the unlocking of the electric lock 21 is prohibited.

  Specifically, in step S102, it is determined whether a wireless LAN communication path is established as a communication path. At this time, when the operation terminal 16 responds to the request signal output from the wireless LAN access point 15, it is determined that the wireless LAN communication path has been established. If the wireless LAN communication path is established, the process proceeds to step S103.

  In step S103, a predetermined authentication process is executed. This authentication process is a process for determining whether or not the ID code input through the wireless LAN communication path is a regular code, and compares the received ID code with the ID code stored on the electric lock controller 22 side. If these codes match, it is determined that the operation terminal 16 is authorized. If the ID codes match, step S104 is affirmed and the process proceeds to subsequent step S105.

  If either step S102 or S104 is denied, the process proceeds to step S109, and the unlocking of the electric lock 21 is rejected.

  In step S105, it is determined whether an infrared communication path is established as a communication path. At this time, when the operation terminal 16 responds to the request signal output from the infrared communication device 24, it is determined that the infrared communication path is established. If the infrared communication path is established, the process proceeds to step S106.

  In step S106, a predetermined authentication process is executed. This authentication process is a process for determining whether or not the ID code input through the infrared communication path is a regular code, and compares the received ID code with the ID code stored on the electric lock controller 22 side, If these codes match, it is determined that the operation terminal 16 is authorized. If the ID codes match, step S107 is affirmed and the process proceeds to subsequent step S108.

  If either step S105 or S107 is denied, the process proceeds to step S109, and the unlocking of the electric lock 21 is rejected.

  In step S108, an electric signal for unlocking is output to the electric lock 21. Thereby, the electric lock 21 is unlocked, and the entrance door 18 can be opened.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  Since the security level at the time of the unlocking process of the electric lock 21 is changed according to the communication status of the two wireless communication means (wireless LAN communication, infrared communication), the security level depends on the communication status of each wireless communication means. It depends. Therefore, even if the operation terminal 16 is changed, a desired security level can be easily realized. In this case, the locking / unlocking control of the electric lock 21 can be suitably performed.

  This type of wireless communication system has a trade-off relationship that operability and usability deteriorate if the security level is tightened, and it is undesirable for crime prevention if the security level is not tightened. By using it, an optimal security level can be realized each time without excessively increasing the security level of each communication.

  In the present embodiment, in particular, since the unlocking of the electric lock 21 is permitted only when communication by two wireless communication means is established, a strong security system can be constructed. In addition, since there are two communication paths, the software can be strengthened.

  Since the communication route established each time is switched according to the position of the operation terminal 16, when the user moves while holding the operation terminal 16, each wireless communication means depends on the position of the user (position of the operation terminal 16). And the security level of the electric lock controller 22 is changed accordingly. In this case, the security level can be variably set according to the position of the user (the position of the operation terminal 16).

  In the unlocking process of the electric lock 21 shown in FIG. 3, the authentication process based on the communication status of the two wireless communication means is performed on the condition that the unlock command signal is received from the operation terminal 16. It may be changed. For example, when the user approaches the entrance door without determining the presence / absence of the unlock command signal from the operation terminal 16, authentication processing based on the communication status of the two wireless communication means is performed. Thereby, the entrance door (electric lock 21) can be locked and unlocked only by approaching the entrance door of the house 10.

  In the system configuration described above, a portable device having an in-house equipment operation function for automatically remote-controlling various facilities in the house 10 is used as the operation terminal 16, but a portable device that does not have this in-home equipment operation function. It is also possible to use a device. The operation terminal 16 may be any portable device having at least the lock / unlock function of the electric lock 21 and is embodied as an electronic key device. In addition to the key type, the electronic key device may have any form such as a card type or a wristband type (watch type).

[Second Embodiment]
Next, a radio communication system according to the second embodiment will be described. In this system, in addition to the lock / unlock control function of the electric lock 21, a function for checking the state of the electric lock 21 (for example, checking the lock / unlock state) is provided. The functions that can be executed are changed depending on whether a communication path is established.

  In the system of the present embodiment, as a difference from the first embodiment, the operation terminal 16 is provided with a mobile phone communication function, and the operation terminal 16 and the electric lock can be connected even from the outside by data communication of the mobile phone network. Data communication with the controller 22 is enabled. Then, the operation terminal 16 accesses the electric lock controller 22 by data communication using the cellular phone communication network, and the state of the electric lock 21 can be confirmed.

  In the system of this embodiment, the wireless LAN communication path in the house 10 is not essential, and mobile phone communication is performed instead of wireless LAN communication between the operation terminal 16 and the electric lock controller 22 (that is, communication means). Is at least two means of infrared communication and mobile phone communication). However, as described above, a wireless LAN communication path may be provided.

  FIG. 4 is a flowchart showing the unlocking process of the electric lock 21 in this embodiment, and this process is repeatedly executed by the electric lock controller 22 at a predetermined time period. This process is executed in place of FIG. 3 described above.

  First, in step S201, it is determined whether an unlock command signal or a state confirmation signal is received from the operation terminal 16. If this is affirmed, the process proceeds to step S202, and if this is denied, this process is terminated. For example, when the user returns home from an outside location and performs an unlocking operation of the operation terminal 16 near the entrance door, an unlock command signal is transmitted from the operation terminal 16 by mobile phone communication, and step S201 is affirmed. Alternatively, when the user performs a state confirmation operation using the operation terminal 16 while away from home, a state confirmation signal is transmitted from the operation terminal 16 by mobile phone communication, and step S201 is affirmed.

  After receiving the unlock command signal or the state confirmation signal, steps S202 to S204 are processes for performing authentication by mobile phone communication, and steps S205 to S207 are processes for performing authentication by infrared communication. Then, the electric lock 21 is locked or unlocked according to the two authentication results. Here, when both mobile phone communication and infrared communication are established (when both radio waves reach), the security level is lowered and the electric lock 21 can be unlocked, while only mobile phone communication is established. In this case, the security level is raised so that the locked / unlocked state of the electric lock 21 can be confirmed. Further, when the security level is increased, the unlocking of the electric lock 21 is prohibited.

  Specifically, in step S202, it is determined whether a mobile phone communication path is established as a communication path. At this time, when data communication is performed through the mobile phone communication network, it is determined that the mobile phone communication path is established. If the mobile phone communication path is established, the process proceeds to step S203.

  In step S203, a predetermined authentication process is executed. This authentication process is a process for determining whether or not the ID code input through the mobile phone communication path is a regular code, and compares the received ID code with the ID code stored on the electric lock controller 22 side. If these codes match, it is determined that the operation terminal 16 is authorized. If the ID codes match, step S204 is affirmed and the process proceeds to subsequent step S205.

  If any of steps S202 and S204 is denied, the process proceeds to step S211 to refuse to unlock the electric lock 21.

  In step S205, it is determined whether an infrared communication path is established as a communication path. At this time, when the operation terminal 16 responds to the request signal output from the infrared communication device 24, it is determined that the infrared communication path is established. If the infrared communication path is established, the process proceeds to step S206.

  In step S206, a predetermined authentication process is executed. This authentication process is a process for determining whether or not the ID code input through the infrared communication path is a regular code, and compares the received ID code with the ID code stored on the electric lock controller 22 side, If these codes match, it is determined that the operation terminal 16 is authorized. If the ID codes match, step S207 is affirmed and the process proceeds to subsequent step S208.

  In step S208, an electric signal for unlocking is output to the electric lock 21. Thereby, the electric lock 21 is unlocked, and the entrance door 18 can be opened.

  If any of steps S205 and S207 is negative, the process proceeds to step S209. In step S209, it is determined whether confirmation of the state of the electric lock 21 is requested. If there is a state confirmation request, the process proceeds to step S210, and the locking / unlocking information indicating the locking / unlocking state of the electric lock 21 is transmitted to the operation terminal 16. Thereby, information such as whether the electric lock 21 is in the locked state or the unlocked state is displayed on the display screen provided in the operation terminal 16. If there is no status confirmation request, the process proceeds to step S211, and the unlocking of the electric lock 21 is rejected.

  The locking / unlocking information transmitted in step S210 includes history information related to locking of the electric lock 21 and history information related to unlocking of the electric lock 21 in addition to information on whether the lock is unlocked or unlocked. Also good. As history information regarding the locking of the electric lock 21, for example, the time information when the previous locking was performed, the number of times of locking after the user went out, and the like can be considered. Moreover, as history information regarding the unlocking of the electric lock 21, for example, time information at which the previous unlocking was performed, unlocking frequency information after the user went out, and the like can be considered.

  As described above, according to the second embodiment, only the communication of one of the two wireless communication means (mobile phone communication, infrared communication) is established, and basically the situation where the security level is increased (electric lock Even in the situation where the unlocking of 21 is impossible), the unlocking / unlocking confirmation of the electric lock 21 is possible. Therefore, the locked / unlocked state at home can be confirmed even when the user is away from home, and the user can go out with peace of mind.

[Third Embodiment]
Recently, attention has been focused on the management of personal information and confidential information, and strict management is taken against taking out data outside the company. PC manufacturers are developing PCs that do not have a hard disk (built-in storage device) so that electronic data cannot be carried even with mobile PCs. In this case, a method has been proposed in which file storage, reference, and reading are always performed by exchanging with a server. Certainly, this method may be a safe method in terms of security. However, in such a centralized control method, a delay in access due to an increase in traffic is caused, which hinders business and the like.

  Therefore, in the present embodiment, a method for suitably implementing data management of a personal computer using a security management method using a plurality of wireless communication means will be described. In particular, here, a case where the use of a hard disk is permitted only in a predetermined room in an office will be described.

  FIG. 5 is a schematic diagram showing an outline of a wireless communication system in an office. In FIG. 5, the office is provided with a plurality of rooms Ra, Rb, etc., of which the room where the user uses the personal computer 31 is referred to as “room Ra”. In the room Ra, an infrared communication device 32 is provided as a narrow area communication means. On the other hand, the infrared communication device 32 is not provided in the room Rb. The infrared communication device 32 has a function of transmitting a room-specific identification code.

  In the office, a communication network 33 is laid through each room, and a wireless LAN access point 34 is provided on the communication network 33. The communication network 33 and the wireless LAN access point 34 correspond to wide area communication means. A server device 35 is connected to the communication network 33. The personal computer 31 can access the server device 35 by wireless LAN communication.

  The personal computer 31 is a portable mobile device (notebook personal computer). As a main configuration, the personal computer 31 includes an arithmetic processing unit 31a having an arithmetic element such as a CPU, a hard disk 31b as a built-in storage device, an infrared communication device 32, and a wireless LAN. A wireless communication unit 31c capable of communicating with the access point 34. The wireless communication unit 31c has an infrared communication function and a wireless LAN communication function. The arithmetic processing unit 31a monitors the communication status of the wireless communication unit 31c, and permits or prohibits access to the hard disk 31b based on the communication status.

  In this embodiment, the confidentiality of the hard disk 31b built in the personal computer 31 and the server device 35 are different, and the hard disk 31b is a highly confidential memory device and the server device 35 is a low confidentiality memory device. When the security level is raised, access to the hard disk 31b is restricted, and when the security level is lowered, access to the hard disk 31b is permitted.

  Consider the case where the personal computer 31 is used in a room Ra (self-seat), which is the original place of use, as shown in FIG. In this case, the wireless communication unit 31c of the personal computer 31 can communicate with the infrared communication device 32 and the wireless LAN access point 34, and on the condition that communication between the two wireless communication means is established. The level is lowered to permit access to the hard disk 31b.

  Next, as shown in FIG. 6B, consider a case where the personal computer 31 is used in a room Rb (other than the own seat). In this case, the wireless communication unit 31 c of the personal computer 31 can communicate with the wireless LAN access point 34 but cannot communicate with the infrared communication device 32. Therefore, the security level is raised to prohibit access to the hard disk 31b. At this time, however, the personal computer 31 can access the server device 35.

  By permitting or prohibiting access to the hard disk 31b as shown in FIGS. 6A and 6B, it is possible to appropriately manage access to the hard disk 31b according to the security level of each time. Here, in particular, even the personal computer 31 provided with the hard disk 31b can access the hard disk 31b only when it is at a predetermined location (self-seat). It is possible to restrict electronic data from being taken out from the personal computer 31.

  As described above, according to the third embodiment, the security level at the time of memory access of the personal computer 31 is changed in accordance with the communication status of the two wireless communication means (wireless LAN communication, infrared communication). It depends on the communication status of each wireless communication means. Therefore, even if the personal computer 31 is changed, a desired security level can be easily realized.

  When the personal computer 31 is used at his or her seat, the hard disk 31b can be accessed, so that normal work is not hindered and the work can be performed comfortably. At this time, in a personal computer that does not have a hard disk for the purpose of strictly managing electronic data, the server device must be accessed each time, so workability is reduced. However, according to the configuration of the present embodiment, a hard disk is provided. Therefore, strict management of electronic data can be realized while improving workability.

  Further, according to the above configuration, since the memory device (hard disk 31b, server device 35) accessible by the arithmetic processing unit 31a of the personal computer 31 is changed according to the security level, the security level is set according to the confidentiality of the memory device. It can set suitably.

[Other Embodiments]
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  The present invention is applied to a crime prevention monitoring system for monitoring intrusion of a suspicious person in a building such as a house. Specifically, a security control device having a security mode setting function, a suspicious person intrusion monitoring function, and the like is provided in the building, and wireless communication is possible between the security control device and the operation terminal (portable device). . For example, the security control apparatus appropriately sets one of a plurality of predetermined security modes. Similarly to the above, the wireless communication means includes a plurality of wireless communication means having different communication paths or communication media (for example, wireless LAN communication, infrared communication, mobile phone communication). The system configuration is generally similar to that shown in FIG. 1, and the electric lock controller 22 in FIG. 1 is changed to “security control device”.

  In the above-described configuration, a building crime prevention mode setting operation or a canceling operation is performed based on an operation command signal (operation request) from the operation terminal. In this case, the security control device lowers the security level and sets / releases the security mode in response to a received signal from the operation terminal, and raises the security level and prohibits the security mode setting / release. May be switched according to the communication status of a plurality of wireless communication means. Further, when the security level is increased, the security control device can be configured to permit the security mode state confirmation in response to the received signal from the operation terminal.

  Also in the above configuration, by changing the security level according to the communication status of the plurality of wireless communication means, it is possible to diversify and facilitate the security level setting, so that a desirable security system can be constructed.

  In addition, in a building, the present invention can also be applied to a security system for a vault, a security system for an automobile garage, a security system for an elevator apparatus, and the like. In this case, in the same manner as described above, a plurality of wireless communication means are used, and a computer device or a portable device is used in a predetermined specific place (room) such as a vault, a garage, and a specific floor of an elevator device, and a place (room) other than that. The wireless communication statuses of the devices (operation terminals) are different from each other. When wireless communication defined in advance is performed in a specific place such as a safe room, the security level is lowered and entry into the safe room is permitted. On the other hand, when wireless communication is performed outside a specific location, the security level is increased and entry into a safe room or the like is prohibited. Thereby, appropriate entrance management can be performed in a safe room, a garage, an elevator apparatus (particularly a specific floor of the elevator apparatus), and the like.

  The present invention can also be applied when entering a room for a specific person. For example, for a room that you do not want to enter by a person other than the resident of the building (employee in the office), such as a home helper, cleaner, or security guard, keep the entrance security level high, and the home helper, cleaner, or guard. It would be good if the staff could not enter the room easily. Specifically, a computer device or a portable device (operation terminal) used by a resident and a computer device or portable device (operation terminal) used by a person other than the resident are configured to perform different wireless communication, respectively. Change the security level according to the communication status. As a result, a system can be constructed that prevents unauthorized persons from entering easily.

  In the case of using a portable computer device (including a mobile device and a mobile phone and having at least a display screen) when going out, the radio waves from a plurality of wireless communication means can be received. In addition, the wireless radio waves that can be received are different between when used at home or the like and when used outside the home. In this case, the display contents of the computer device (including the initial screen and standby screen) differ between when receiving multiple (for example, two types) radio waves and when receiving one type of radio waves. And For example, when two types of radio waves are received, it is determined that the user is in a house, and a screen such as a schedule is used. When only one type of radio wave is received, it is determined that the user is outside the house, and the device operation screen is displayed. With the above configuration, the operability of the operation terminal can be improved.

  Further, when various information is read using the computer device at a place where the user is out, the information of the computer device itself is protected. For example, when you use a mobile device or mobile phone in a city to read a two-dimensional bar code written on a poster or other posting, or to read RFID (Radio Frequency Identification), you are wireless Judgment is made according to the reception status of radio waves, and access to the memory on the computer device side (user side) is prohibited.

  It is preferable to provide a plurality of storage destinations (memory) with different security levels in a computer device (including mobile devices and mobile phones), and to provide a difference in security levels for accessing the plurality of storage destinations (software Either hardware or hardware). In this case, it is important to store highly confidential information such as information for unlocking electric locks, personal information, and credit card information in the storage location of the person with the highest level of security. good. Although important information cannot be freely accessed when going out, information can be obtained by using it as a terminal. In a house, when accessing important information, a plurality of wireless communication means can be used for security construction, so that strong security can be constructed.

  In each of the embodiments described above, the system that uses two communication media (such as wireless LAN communication & infrared communication) and changes the security level according to the communication status has been described, but this is changed. For example, it is possible to use two wireless communication means having the same communication medium but different communication paths and change the security level according to the communication status.

  Next, for the system that changes the security level according to the communication status of the two wireless communication means, a variation regarding the determination method of the communication status is illustrated. Here, in FIG. 7, wireless communication is performed between the operation terminal 41 and the computer apparatus 42 through the first communication path N1 and the second communication path N2, respectively, and the operation of the control target 43 is performed by the computer apparatus 42. Indicates the system to be controlled. Which of the communication paths N1 and N2 is communicable can be switched depending on the use position of the operation terminal 41 or the like.

  (1) The security level is changed depending on which of the first communication path N1 and the second communication path N2 is used for communication. In this case, the security level can be easily changed by providing a difference in the security level for each of the communication paths N1 and N2. When two types of communication media are used instead of the two communication paths N1 and N2, the security level is changed according to which communication medium is used for communication. In this case, it is preferable to provide a difference in security level for each communication medium.

  (2) The security level is changed in accordance with the path order (N1 → N2 or N2 → N1) that enables communication in the first communication path N1 and the second communication path N2. In this case, the security level can be easily changed by providing a difference in the security level for each order in which communication is enabled.

  (3) The security level is changed according to the number of communication paths that can be simultaneously communicated in the first communication path N1 and the second communication path N2. In this example, the security level is changed depending on whether the number of communication paths that can be simultaneously communicated is 0, 1, or 2. For example, when the number of communication paths that can be simultaneously communicated is large, the security level may be lowered as compared with the case where the number of communication paths is small.

(4) In the first communication path N1 and the second communication path N2, the security level is changed according to the authentication pattern regarding each of the communication paths N1 and N2. For example,
I. A pattern in which only communication on the communication path N1 is authenticated,
B. A pattern in which only communication on the communication path N2 is authenticated,
C. A pattern in which the communication of the communication path N2 is authenticated after the authentication of the communication of the communication path N1;
A plurality of authentication patterns are determined in advance, and the security level is changed according to which one corresponds. In this case, for example, when a simple authentication pattern (above (a) and (b)) is compared with a complicated authentication pattern (above (c)), the security level may be lowered in the latter case.

  In the above embodiment, the security level is changed according to the communication status of the two wireless communication units. However, this is changed and the security level is changed according to the communication status of three or more wireless communication units. It is also good.

As the wireless communication means, in addition to the above-described wireless LAN communication, mobile phone network, and infrared communication, the following can be applied. For example, RFID (guard type, including entrance / exit management), Bluetooth (registered trademark), ZigBee, UWB, specific low power wireless communication (smart key) can be applied. In this case, the combination of the narrow area communication and the wide area communication is preferably the following combination.
1. 1. narrow area communication = RFID, wide area communication = wireless LAN communication, mobile phone network 2. narrow area communication = Bluetooth, ZigBee, UWB, wide area communication = wireless LAN communication, mobile phone network 3. narrow area communication = wireless LAN, wide area communication = cell phone network Narrow-area communication = wireless LAN, wide-area communication = specific low-power wireless communication, mobile phone network According to each of the above-described configurations, security management can be realized appropriately and easily.

The figure which shows the outline | summary of a housing network system. The schematic diagram which shows the communicable area of wireless LAN communication and infrared communication in a house and its peripheral area. The flowchart which shows the unlocking process of the electric lock in 1st Embodiment. The flowchart which shows the unlocking process of the electric lock in 2nd Embodiment. The schematic diagram which shows the outline | summary of the radio | wireless communications system in an office in 3rd Embodiment. Schematic diagram for explaining hard disk access restrictions. The figure for demonstrating the variation regarding the judgment method of a communication condition.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Housing, 11 ... LAN cable, 15 ... Wireless LAN access point, 16 ... Operation terminal, 21 ... Electric lock, 22 ... Electric lock controller, 24 ... Infrared communication device, 31 ... Personal computer, 31b ... Hard disk, 32 ... Infrared communication Device 33 communication network 34 wireless LAN access point 35 server device

Claims (17)

A wireless device comprising a plurality of wireless communication means each having a different communication path or communication medium, a portable device possessed by a user, and a computer device capable of wireless communication with the portable device by the plurality of wireless communication means. A communication system,
A wireless communication system, wherein a security level is changed according to communication conditions of the plurality of wireless communication means.   The portable device is an operation terminal for performing an operation of locking and unlocking an electric lock provided at a doorway of a building, and the computer device is an electric lock control device for performing various controls relating to locking and unlocking of the electric lock. Item 2. The wireless communication system according to Item 1.   The electric lock control device lowers the security level and executes the unlocking of the electric lock in response to a received signal from the portable device, and increases the security level and rejects the unlocking of the electric lock. The wireless communication system according to claim 2, wherein the state to be switched is switched according to a communication status of the plurality of wireless communication means.   The wireless communication according to claim 3, wherein the electric lock control device permits the confirmation of the lock / unlock state of the electric lock in response to a reception signal from the portable device when the security level is increased. system.   The said portable apparatus is an operation terminal for performing the setting operation of the crime prevention mode of a building, cancellation | release operation, etc., and the said computer apparatus is a security control apparatus which performs various control regarding the security management in a building. Wireless communication system.   6. The wireless communication unit according to claim 1, wherein which wireless communication means can communicate between the portable device and the computer device is switched according to a position of the portable device. The wireless communication system described.   Of the plurality of wireless communication means, one is a wide area wireless communication means having a relatively wide area wireless communication area, and the other is a narrow area wireless communication means having a relatively narrow area wireless communication area. The wireless communication system according to claim 6. Wireless communication is possible with a plurality of wireless communication means with different communication paths or communication media, and various controls are performed based on the communication results when wireless communication is performed by each of the wireless communication means. A wireless communication system comprising:
A wireless communication system, wherein a security level is changed according to communication conditions of the plurality of wireless communication means. In a system comprising a memory device for storing electronic data, the computer device being accessible to the memory device,
The state in which the security level is lowered and the access to the memory device by the computer device is permitted, and the state in which the security level is raised and the access to the memory device by the computer device is prohibited 9. The wireless communication system according to claim 8, wherein switching is performed according to the communication status of the means. In a system comprising a plurality of memory devices, the computer device being accessible to the plurality of memory devices,
9. The wireless communication system according to claim 8, wherein a memory device accessible by the computer device is changed among the plurality of memory devices in accordance with the security level.   9. The wireless communication system according to claim 8, wherein the computer device is a mobile computer device having a display screen, and the display content of the display screen is changed according to a communication status of the plurality of wireless communication means. .   12. The wireless communication system according to claim 8, wherein which wireless communication means can communicate in the computer apparatus is switched according to the position of the computer apparatus.   Of the plurality of wireless communication means, one is a wide area wireless communication means having a relatively wide area wireless communication area, and the other is a narrow area wireless communication means having a relatively narrow area wireless communication area. The wireless communication system according to claim 12.   The wireless communication according to any one of claims 1 to 13, wherein the security level is changed in accordance with which communication path or communication medium is used for communication in the plurality of wireless communication means. system.   The wireless communication system according to any one of claims 1 to 13, wherein the security level is changed according to an order in which communication is possible in the plurality of wireless communication means.   The wireless communication system according to any one of claims 1 to 13, wherein the security level is changed according to the number of wireless communication means capable of simultaneously communicating with the plurality of wireless communication means.   The security level is changed according to which of the predetermined authentication patterns corresponds to the case where authentication is performed for each of the plurality of wireless communication means. The radio | wireless communications system in any one of thru | or 13.

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