JP2004274295A - Device and program for controlling radio data communication, and radio communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve security in the radio data communication of radio communication equipment. <P>SOLUTION: A wireless station 12 is provided with a data communicating part 121 for performing radio data communication with an OA (Office Automation) equipment resource 20 and a management database 123 for managing a MAC address of a client terminal 14 with which the OA equipment resource 20 can perform radio data communication, and transmits the MAC address to the OA equipment resource 20. The OA equipment resource 20 inhibits performing radio data communication with a communication terminal other than the client terminal corresponding to the MAC address. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wireless data communication control device that controls communication of a wireless communication device having a wireless data communication function, a wireless data communication control program, and a wireless communication system.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a computer communication network (hereinafter, referred to as a “LAN” (Local Area Network)) having a relatively narrow range is laid in a premises of a company or the like, and each computer shares information data via the LAN to perform work. It has been widely practiced to increase productivity and efficiency. Further, in recent years, various OA (Office Automation) devices such as a printer device, a scanner device, a projector device, a telephone, and a FAX device are connected to the LAN in addition to the computer, and data communication is realized between the devices. (Hereinafter, devices connected to the LAN are referred to as “communication resources”). As a form of such a LAN, a form in which communication resources are connected to each other via a communication cable so as to enable data communication with each other is general. In recent years, a form of connecting each resource wirelessly (hereinafter, referred to as “wireless LAN”) has also become widespread (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-9-214495
[0004]
[Problems to be solved by the invention]
However, as described above, when the OA device is connected to the wireless LAN, there is a problem that a malicious third party can connect to the OA device by wireless data communication using a wireless terminal and acquire data from the OA device. . In particular, companies and the like often hold important meetings using a whiteboard connected to a wireless LAN, and in such a case, the confidential matters of the meeting drawn on the whiteboard are given to a third party. It will be received.
[0005]
As one of the solutions to the above problem, there is a method of providing a password for permitting wireless data communication for each OA device, but a device used by a plurality of people may have a risk of leaking a password. If devices exist, password management is very complicated.
[0006]
The present invention has been made in view of the above-described problems, and provides a wireless data communication control device, a wireless data communication control program, and a wireless communication system capable of enhancing security in wireless data communication of a wireless communication device. With the goal.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes a communication unit that performs data communication with a wireless communication device, and a storage unit that stores identification information of a communication terminal that the wireless communication device may perform wireless data communication, A wireless data communication control device configured to transmit identification information to the wireless communication device and prohibit the wireless communication device from performing wireless data communication with a communication terminal other than the communication terminal corresponding to the identification information is provided.
According to this configuration, the wireless communication device performs wireless data communication only with the communication terminal designated by the wireless data communication control device and is prohibited from communicating with an unauthorized communication terminal. Wireless data communication is performed with the wireless communication device using the device, and data is prevented from being acquired from the wireless data communication device.
[0008]
Here, when the communication means is for wireless data communication and is capable of wireless data communication with a communication terminal capable of wireless data communication with the wireless communication device, that is, when the communication terminal is the same as the wireless data communication control device Wireless communication connection to the wireless communication device, even if the owner is a user of the communication network (equivalent to an employee if the communication network is within a company). Can be controlled. This prevents, for example, in a company, employees who do not participate in a conference or the like from acquiring data from a whiteboard capable of wireless data communication.
[0009]
The identification information is, for example, a MAC address, and the wireless communication device is an OA device. In addition, by configuring the wireless data communication control device to further include an authentication unit that performs an authentication process on a communication device that communicates with the wireless data communication control device, security can be further improved.
[0010]
Further, in order to achieve the above object, the present invention provides a computer having data communication means, means for performing data communication with a wireless communication device, and identification information of a communication terminal which may perform wireless data communication with the wireless communication device. Means for storing, and wireless data communication for transmitting the identification information to the wireless communication device and functioning as a means for prohibiting the wireless communication device from performing wireless data communication with a communication terminal corresponding to the identification information Provide a control program.
[0011]
In order to achieve the above object, the present invention includes a wireless communication device, and a wireless data communication control device that controls wireless data communication of the wireless communication device, wherein the wireless communication device includes a designated communication terminal. Wireless data communication only with the wireless communication device, the wireless data communication control device stores communication means for performing data communication with the wireless communication device, and identification information of a communication terminal with which the wireless communication device may perform wireless data communication. A wireless communication system configured to transmit the identification information to the wireless communication device and prohibit the wireless communication device from performing wireless data communication with a communication terminal corresponding to the identification information. .
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, a case is described in which a computer terminal in a living room of a company performs data communication with an OA device installed in a conference room via a LAN and receives data from the OA device. FIG. 1 is a diagram schematically illustrating a configuration of a wireless data communication system 1 according to an embodiment of the present invention. As shown in FIG. 1, a wireless data communication system 1 includes a wired LAN 10a for connecting resources (data communication devices) in different rooms such as a company room R1 and a conference room R2 so that data communication is possible, and a wireless LAN communication system 1 in the conference room R2. And the wireless LAN 10b laid down.
[0013]
A groupware server 22 composed of a general computer system is connected to the wired LAN 10a. In the groupware server 22, groupware, which is a software program for supporting collaborative work between employees (users), is introduced. By executing the groupware, the groupware server 22 has an e-mail function that enables transmission and reception of e-mail between employees or externally, and an electronic conference that enables meetings between employees and discussions on specific themes. Room function, TV conference function used for real-time meetings between employees, electronic bulletin board function that allows all employees to issue bulletins, scheduler function that allows employees to share schedules, ideas and ideas between employees General features such as a document sharing function that enables the creation and sharing of various information such as know-how in a database, and a workflow function that enables the digitization of documents such as approval documents circulated among employees and distribution between computers Realize various functions related to business. The groupware server 22 manages employees who can use the functions of the own device (that is, employees who can access the groupware server 22) by associating employee IDs and passwords (authentication information). Here, a general computer system includes a storage unit for storing programs and various data, a processor as a program execution unit, and an output unit such as a display, and an input unit such as a keyboard and a mouse, as necessary. Things.
[0014]
In the living room R1, a plurality (three in the illustrated example) of portable client terminals 14 connected to the wired LAN 10a and functioning as client computers for the groupware server 22 are arranged. In the present embodiment, the client terminal 14 is a computer assigned to each employee, and the number of employees using the client terminal 14 is generally fixed to one. The employees managed by the groupware server 22 are provided with a scheduler function, an electronic conference room function, and the like by accessing the client terminal 14 via the LAN 10a. Location, etc.), and the client terminal 14 is carried when going to the conference room. When accessing the groupware server 22 from the client terminal 14, authentication processing is performed by the groupware server 22, and access to the groupware server 22 from an unauthorized user is denied. In the living room R1, telephones 16 assigned to each employee are installed, and these telephones 16 are also connected to the wired LAN 10a.
[0015]
In addition to the groupware server 22, a message server 18 and a pantry server 24, each of which is a general computer system, are connected to the wired LAN 10a. The message server 18 refers to the schedule of the employee managed by the groupware server 22 via the wired LAN 10a, and automatically answers the incoming call addressed to the telephone 16 on behalf of the employee when the employee cannot answer the telephone. In addition, it has a function of storing an incoming time, a message of the other party, and notifying the client terminal 14 assigned to the employee of the incoming call. More specifically, the case where the employee cannot answer the telephone is the case where the employee is out of the office due to a business trip or a meeting, etc. The message server 18 stores the employee (employee ID) and the assigned It stores the identification information of the telephone set 16 and inquires the schedule for each employee ID to the groupware server 22 via the wired LAN 10a at regular time intervals, manages the time period during which the employee cannot answer the telephone, and manages the time period during this time period. Automatically respond to incoming calls. As described above, the client terminal 14 is notified that there is an incoming call, and the employee accesses the message server 18 from the client terminal 14 via the wired LAN 10a to receive the incoming message stored in the message server 18. You can hear It is needless to say that the message server 18 may perform authentication processing for the accessing employee. When the message server 18 performs authentication, the employee ID and the password managed by the groupware server 22 may be referred to via the wired LAN 10a.
[0016]
The pantry server 24 is installed in a coffee room or the like of a company, and transmits and receives data to and from the client terminal 14 via the wired LAN 10a, and manages orders from employees. Specifically, the pantry server 24 receives, from the client terminal 14, information indicating the employee ID, the ordered product, the number thereof, and the delivery location via the wired LAN 10a. The reception contents are confirmed by the staff in the coffee room or the like, and the ordered product is delivered to the delivery place. As a result, the employee can order products from the client terminal 14, and for example, during the meeting, there is no need to interrupt the meeting by calling the coffee room for ordering products such as coffee. .
[0017]
On the other hand, in the conference room R2, a wireless station 12 which is a server computer connected to the wired LAN 10a and having the function of the wireless LAN 10b is installed. In the conference room R2, a projector device 20a, a whiteboard device 20b, a FAX device 20c, a television 20d, and a printer device 20e, which are OA device resources 20, are installed. These OA device resources 20 have the function of the wireless LAN 10b, and perform wireless data communication with the wireless station 12 via the wireless LAN 10b. A configuration in which the OA device resource 20 receives a communication address (a MAC address described in detail later) of a terminal that can be a wireless data communication partner from the wireless station 12 and does not transmit wireless data to a communication address other than the received communication address. It has become. On the other hand, the client terminal 14 has a function of performing wireless data communication with the wireless station 12 and the OA equipment resource 20 by radio, and when the client terminal 14 is located in the conference room R2, The terminal 14 also performs wireless data communication via the wireless LAN 10b.
[0018]
Here, the wireless station 12 is configured by a general computer system, and has a function of controlling wireless data communication of the OA device resource 20 in the conference room R2 in order to enhance security in the wireless LAN 10b.
FIG. 2 is a block diagram illustrating a functional configuration of the wireless station 12. In this figure, a control unit 120 controls each unit of the wireless station 12, and includes a CPU, a ROM, and a RAM. The data communication unit 121 performs data communication with a communication resource under the control of the control unit 120, and includes two communication interfaces. That is, a communication interface that is connected to the wired LAN 10a for data communication and performs data communication with resources connected to the wired LAN 10a, and a communication interface that performs wireless data communication with a communication resource via the antenna 121a via the wireless LAN 10b. One. Here, the wireless communication data transmitted and received between the wireless station 12 and the communication resource via the wireless LAN 10b is encrypted with an encryption key, and even if a third party intercepts the radio wave, the wireless communication data is transmitted. Is difficult to decrypt. As the encryption method for wireless communication data, either a public key encryption method or a secret key encryption method may be used.
[0019]
The storage unit 122 is executed by the control unit 120, and stores a wireless data communication control program that causes the wireless station 12 to realize a wireless communication traffic control function and various data, and is configured by a hard disk drive or the like. The management database 123 manages resources connected to the wireless LAN 10b (that is, using the wireless station 12 as an access point). The management database 123 is a relational database constructed from a plurality of tables, and is stored in a storage unit such as a hard disk.
[0020]
The management database 123 includes an OA device management table 123a for managing the OA device resources 20 in the conference room R2, a client management table 123b for managing the client terminals 14 for each employee brought into the conference room R2, An access right management table 123c for managing an access right from the terminal 14 to the OA device resource 20. FIG. 3 is a diagram schematically illustrating the configuration of the OA device management table 123a. As shown in this figure, one record of the OA device management table 123a includes a resource ID, an OA device name, a MAC (Media Access Control) address, and a status. The resource ID is identification information unique to each OA device resource 20. The MAC address is a MAC address of the OA device resource 20. Here, the MAC address is a number uniquely assigned to each communication network device using Ethernet (registered trademark), and is a unique number for each device maker that is managed and assigned by IEEE (Institute of Electrical and Electronic Engineers). And a number that is uniquely assigned by the device manufacturer. The status indicates the operation status of the OA device resource 20, and a flag "1" is entered when the OA device resource 20 is currently available, and a flag "0" is entered when the OA device resource 20 is unavailable. Note that registration of the OA device resource 20 in the OA device management table 123a has been performed in advance.
[0021]
Next, as shown in FIG. 4, one record of the client management table 123b includes the client terminal ID and the MAC address. On the other hand, as shown in FIG. 5, the access right management table 123c includes client terminal IDs and accessible devices. In the accessible device, the resource ID group of the OA device resource to which the client terminal 14 is permitted to access (wireless data communication) is entered. Here, the client management table 123b and the access right management table 123c are dynamically updated at regular intervals.
More specifically, the wireless station 12 includes a time period (start time and end time) during which the conference is held in the conference room R2, a client terminal ID assigned to an employee participating in the conference, and the client terminal ID. The access right to the OA device resource 20 for each of the MAC address and the client terminal ID corresponding to the client terminal ID is received from the groupware server 22 via the wired LAN 10a at regular time intervals, and the client management table 123b, The access right management table 123c is updated. That is, in the present embodiment, the association between the client terminal ID and the MAC address and the setting of the access right to the OA device resource 20 for each client terminal ID are performed by the groupware server 22. It goes without saying that the station 12 may perform the operation.
[0022]
Under the above configuration, the wireless station 12 performs wireless data communication only with resources registered in the OA device management table 123a and the client management table 123b, and wireless data communication links with other resources. Is rejected, wireless data communication is performed only with resources that may exist in the conference room R2. Also, the wireless station 12 transmits the MAC address of the client terminal 14 registered in the client management table 123b to the OA device resource 20 to which access from the client terminal 14 is permitted by wireless data communication, and , The OA device resource 20 performs wireless data communication only with the client terminal 14 having the access right.
[0023]
Next, the operation of the present embodiment will be described. An employee accesses the groupware server 22 from the client terminal 14 and registers a meeting schedule. The meeting schedule includes a place where the meeting is held, a meeting start time, a meeting end time, and employees who participate in the meeting. On the other hand, as shown in FIG. 6, the wireless station 12 performs data communication with the groupware server 22 via the wired LAN 10a at regular intervals, and the client terminal ID of the employee who attends the conference and the MAC address of the client terminal 14. , The access right, the conference start time, and the conference end time are received (step S1). Then, the wireless station 12 updates the client management table 123b and the access right management table 123c based on the received data, and updates the OA device resources 20 to be used in the conference based on the received access right. The information is registered in the table 123a (step S2).
[0024]
Here, at the meeting start time, as shown in FIG. 7, the employees gather in the meeting room R2 together with the client terminals 14 assigned to themselves, to participate in the meeting. When the conference start time arrives (step S3: YES), the wireless station 12 assigns the OA device resource 20 registered in the OA device management table 123a to an OA device in a state where wireless data communication is possible based on the MAC address. The resource 20 is searched, and the status in the OA device management table 123a is updated (step S4).
[0025]
Next, the wireless station 12 sends the OA device name of the OA device resource 20 capable of wireless data communication and the access right for each client terminal 14 to each client terminal 14 registered in the client management table 123b, in the wireless LAN 10b. (Step S5). As a result, as shown in FIG. 8, the operation status of the OA device resource 20 and the client terminal 14 (in the illustrated example, the client terminal 14 The access right to the OA device resource 20 from the corresponding employee ID) is displayed. Note that the process of step S5 may be performed at any time. For example, the configuration may be such that the wireless station 12 performs the process when there is a request from the client terminal 14. As shown in FIG. 9, the presence or absence of an access right may be displayed for each client terminal 14.
[0026]
Next, the wireless station 12 assigns the MAC address of the client terminal 14 to which access is permitted (that is, the client terminal 14 permitted as a communication partner) to each of the OA device resources 20 capable of wireless data communication to the wireless LAN 10b. (Step S6). As a result, each OA device resource 20 acquires the transmission destination address of the communication data to the partner terminal (client terminal 14) with which the OA device resource 20 should perform wireless data communication. connect. As a result, wireless data communication between the OA device resource 20 and the client terminal 14 having no access right to the OA device resource 20 is prohibited. Here, the client terminal 14 and the OA device resource 20 establish a wireless communication link without going through the wireless station 12 and directly perform wireless data communication.
[0027]
For example, when an access request is made from the client terminal 14 to the projector device 20a, and when the client terminal 14 does not have an access right to the projector device 20a, the projector device 20a acquires the MAC address of the client terminal 14. Therefore, no wireless data communication link is established, thereby prohibiting access from the client terminal 14 having no access right.
[0028]
On the other hand, when the client terminal 14 has an access right, the projector device 20a establishes a wireless data communication link with the client terminal 14, and the projection data is transmitted from the client terminal 14 to the projector device 20a by the communication link. The projection based on the projection data is performed by the projector device 20a. When the projector device 20a is in a use state (that is, a state in which a wireless data communication link is established with the client terminal 14), the wireless station 12 sends a signal to the other client terminals 14 in this manner. Informing that the projector device 20a is in use, the screen of the client terminal 14 indicates that the projector device 20a is in use, as shown in FIG. You.
[0029]
For example, when the client terminal 14 accesses the whiteboard device 20b, a wireless data communication link is established between the client terminal 14 and the whiteboard device 20b only when the client terminal 14 has an access right. Then, the characters and figures drawn on the board of the whiteboard device 20b are transmitted to the client terminal 14 as image data.
[0030]
Here, when there is a telephone call to the employees participating in the conference, the message server 18 automatically answers as described above. Therefore, the message server 18 is provided with a voice recognition function, converts the incoming message into text data, and transmits the text data to the client terminal 14 of the employee who is attending the conference via the wired LAN 10a and the wireless station 12. It may be configured to be displayed on the screen 14. With this configuration, it is possible to prevent the progress of the conference from being hindered by an incoming call to an employee who is participating in the conference.
[0031]
As described above, according to the present embodiment, while the wireless station 12 manages the MAC address of the client terminal 14 that can access the OA device resource 20, the OA device resource 20 manages the client terminals other than the MAC address. Since the configuration prohibits the establishment of the wireless data communication link with the terminal, the client terminal 14 not permitted to access is prevented from using the OA device resource 20 without permission. Data acquisition is prohibited. This makes it possible to enhance security in wireless data communication. In addition, by managing the use status of the OA device resources 20 by the wireless station 12, the OA device resources 20 can be effectively used.
[0032]
<Modification>
The above-described embodiment is merely one aspect of the present invention, and can be arbitrarily modified within the scope of the present invention. Therefore, various modifications will be described below.
[0033]
(1) In the above-described embodiment, the OA device resource 20 acquires the MAC address of the communication partner terminal from the wireless station 12. However, the wireless communication between the client terminal 14 having no access right and the OA device resource 20 is performed. It suffices if the establishment of the data communication link is prohibited, and the following configuration may be adopted. That is, the client terminal 14 and the OA device resource 20 use the wireless station 12 as an access point when performing wireless data communication, and the wireless data communication between the client terminal 14 and the OA device resource 20 always passes through the wireless station 12. The wireless station 12 controls the establishment of a wireless data communication link between the client terminal 14 and the OA device resource 20 according to the registered contents of the access right management table 123c. Specifically, the wireless station 12 establishes a wireless data communication link between the client terminal 14 and the OA device resource 20 only when the client terminal 14 has an access right, and establishes wireless data communication between the two. Make it possible.
The configuration in which the management database 123 stored in the wireless station 12 is stored in each OA device resource 20, that is, each OA device resource 20 directly obtains the MAC address of the terminal with which it communicates from the groupware server 22. A configuration may be used.
[0034]
(2) In the above embodiment, the configuration in which the wireless station 12 manages only the communication resources in the room in which the wireless station 12 is installed has been exemplified, but the present invention is not limited to this. That is, the wireless station 12 may manage the access right from the client terminal 14 in the conference room R2 to the pantry server 24 installed outside the conference room R2 during the conference.
In the above embodiment, wireless data communication may be performed between the client terminals 14 without the wireless data communication being managed by the wireless station 12. When the client terminal 14 is in the conference room R2, each communication resource (for example, another client terminal 14 or groupware) connected to the wired LAN 10a via the wireless station 12 without being managed by the wireless station 12. The server 22 and the message server 18) may be accessible. This allows the client terminal 14 to receive various data such as e-mails from the groupware server 22 even during a meeting or the like. Furthermore, the wireless station 12 may have a function of prohibiting or permitting connection to a wide area communication network such as the Internet for each client terminal 14.
[0035]
(3) In the above-described embodiment, the wireless data communication system 1 laid in the company has been described as an example. For example, in recent years, coffee shops and the like are provided with a plurality of wireless access points connected to the Internet so that customers can connect to the Internet from their mobile terminals. It is also possible to apply In this case, the wireless station 12 according to the present invention is connected to each wireless access point by a wired LAN, and each wireless access point establishes a wireless data communication link only with a terminal having a MAC address received from the wireless station 12. . In addition, the wireless station 12 has an authentication function, and stores a user ID and a password that can access itself.
[0036]
Under such a configuration, a coffee container on which a password and a user ID are printed is distributed to a visitor having a portable terminal capable of wireless data communication. Then, in order for the visitor to connect the mobile terminal and the wireless access point, first, a password is input to the wireless station 12 and wireless connection is made. Here, by setting the wireless station to limit the password expiration date to one use, unauthorized access to the wireless station 12 can be avoided and information security can be maintained.
[0037]
Now, when the visitor's mobile terminal and the wireless station 12 are connected to enable data communication, the wireless station 12 stores the MAC address of the mobile terminal and searches for a wireless access point with the least number of connections. Then, the wireless station 12 transmits the mobile terminal MAC address to the corresponding wireless access point to enable establishment of a wireless data communication link between the wireless access point and the mobile terminal, and transmits the MAC address of the wireless access point to the mobile terminal. Send to terminal. Thus, the customer's mobile terminal can establish a wireless data communication link with the wireless access point using the MAC address received from the wireless station 12. In addition, since the wireless station 12 allocates the wireless access point with the least number of connections, that is, the wireless access point with a sufficient communication band, to the visitor's portable terminal, the visitor has the most in the coffee shop (area). The Internet can be used in a high-speed accessible environment.
[0038]
【The invention's effect】
As described above, according to the present invention, a wireless data communication control device, a wireless data communication control program, and a wireless communication system capable of enhancing security in wireless data communication of a wireless communication device are provided.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing a configuration of a wireless data communication system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a functional configuration of the wireless station.
FIG. 3 is a diagram schematically showing a configuration of the OA device management table.
FIG. 4 is a diagram schematically showing a configuration of the client terminal management table.
FIG. 5 is a diagram schematically showing a configuration of the access right management table.
FIG. 6 is a flowchart showing a control processing procedure of the wireless station.
FIG. 7 is a diagram schematically showing a configuration of the wireless data communication system.
FIG. 8 is a diagram showing an example of a screen display of the client terminal.
FIG. 9 is a diagram showing an example of a screen display of the client terminal.
FIG. 10 is a diagram showing an example of a screen display of the client terminal.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Wireless data communication system, 12 ... Wireless station, 14 ... Client terminal (communication terminal), 20 ... OA equipment resource, 22 ... Groupware server, 120 ... Control part, 121 ... Data communication part, 122 ... Storage part, 123 ... management database, 123a ... OA device management table, 123b ... client management table, 123c ... access right management table.

Claims (7)

Communication means for performing data communication with the wireless communication device;
Storage means for storing identification information of a communication terminal that the wireless communication device may perform wireless data communication,
A wireless data communication control device that transmits the identification information to the wireless communication device and prohibits the wireless communication device from performing wireless data communication with a communication terminal other than the communication terminal corresponding to the identification information. 2. The wireless data communication control device according to claim 1, wherein the communication unit performs wireless data communication, and is capable of wireless data communication with a communication terminal capable of performing wireless data communication with the wireless communication device. 3. The wireless data communication control device according to claim 1, wherein the identification information is a MAC address. The wireless data communication control device according to claim 1, wherein the wireless communication device is an OA device. The wireless data communication control device according to claim 1, further comprising an authentication unit that performs an authentication process on the communication device. A computer having data communication means;
Means for data communication with the wireless communication device;
Means for storing identification information of a communication terminal that the wireless communication device may perform wireless data communication, and
A wireless data communication control program for transmitting the identification information to the wireless communication device and functioning as a unit that prohibits the wireless communication device from performing wireless data communication with a communication terminal corresponding to the identification information. A wireless communication device, comprising a wireless data communication control device for controlling wireless data communication of the wireless communication device,
The wireless communication device performs wireless data communication only with a designated communication terminal,
The wireless data communication control device has communication means for performing data communication with the wireless communication device, and storage means for storing identification information of a communication terminal that the wireless communication device may perform wireless data communication with, and the identification information To the wireless communication device to prohibit the wireless communication device from performing wireless data communication with a communication terminal corresponding to the identification information.

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