JP5250843B2 - Portable information storage terminal and information management system using portable information storage terminal - Google Patents

Description

  The present invention relates to a portable information storage terminal and an information management system for such an information storage terminal.

In information security in an environment that handles confidential information such as offices, it is important to control the browsing of confidential information stored in the department and taking it out of the department.
In order to cope with such a problem, printing is performed on a tagged paper when printing a confidential document, and the identifier of the tagged paper and a take-out rule are notified to the monitoring mechanism at the time of printing. A management system has been devised that compares the take-out rules and prohibits or permits take-out according to the take-out rules (see, for example, Patent Document 1).

  Also, as a prior art for managing the taking-out of articles, a large number of IC tag readers are distributed and arranged in the space, and the positions of the articles with IC tags are calculated from the signal reception intensity in each IC tag reader A position measurement system has been devised that issues an alarm when the position is not within the command area (see, for example, Patent Document 2).

Each of the above prior arts prohibits taking out printed materials and articles.
However, in recent years, documents have also been digitized, and documents used in offices are also stored as digital data. Information accessible to each person can be freely extracted as necessary. The extracted document information is stored in a portable or highly portable information storage terminal or storage medium such as a mobile PC or a memory card, and can be browsed at any time. Therefore, if information that has been converted into digital data is stored in an information storage terminal or storage medium that is carried by a person even if it is managed to take out a printed paper surface or a tag-attached article within a predetermined monitoring area, the information is leaked. Could not prevent.

  Therefore, as a prior art corresponding to such a recent situation, display information storage means for storing display data to be displayed on the display means, current position detection means of the apparatus main body, display data browsing area And a portable display device has been devised that erases display data when the current position is outside the viewable area (see, for example, Patent Document 3).

JP 2008-46886 A JP 2006-71516 A JP 2006-227517 A

However, since the technology described in Patent Document 3 uses GPS technology to acquire the current position, communication with GPS satellites is necessary, but management of confidential information may be performed indoors. In general, GPS obtains sufficient positional accuracy depending on the surrounding environment, such as an environment where surrounding buildings shield or reflect radio waves, or an environment where communication conditions such as indoors are not good. As a result, information management may become insufficient.
In addition, it is conceivable that the technique described in Patent Document 3 is applied to a wireless LAN in place of GPS to detect the position of a moving body, but the positioning technique using the wireless LAN is also detected only around the access point. The position accuracy is high, and the other position detection accuracy has a large error, and cannot be solved sufficiently.
In addition, when the conventional portable display device has an I / O for storing the internal data of the display information storage means in another portable storage medium, the data is transferred from the information display storage means to the other storage medium. It has become a problem that it is difficult to say that information management is thorough.

  An object of the present invention is to perform information management more appropriately.

The invention described in claim 1 shows electronic data storage means for storing electronic data, electronic data detection means for detecting the possession state of electronic data in the electronic data storage means, and detection results by the electronic data detection means. A portable information storage terminal comprising status storage means for storing status information and status transmission means for transmitting the status information to the outside, wherein the brightness change around the portable information storage terminal or the surrounding sound change includes a state detecting means for detecting a state change of the status change of state detection means or the portable information storage device itself is detected as a state change, the status transmitting means is by Ri said state changes to said state detecting means characterized in that the detected performs the sending of the status information.

The invention described in claim 2 has the same configuration as that of the invention described in claim 1, and the change in state detected by the state detection means is carried around the portable information storage terminal or ambient brightness accompanying carrying. or changes or the surrounding sound volume change and said state change der Rukoto of the portable information storage device itself.

  A third aspect of the invention has the same configuration as that of the first or second aspect of the invention, and further includes a power source that constantly supplies power to the state detection unit and the status transmission unit.

  The invention described in claim 4 has the same configuration as that of the invention described in any one of claims 1 to 3, and the electronic data detection means only detects electronic data set to have confidentiality. It is a target.

  The invention according to claim 5 has the same configuration as that of the invention according to claim 4, and when the detection by the electronic data detection means indicates the presence of the confidential electronic data, the confidential electronic It comprises an erasing processing means for erasing data collectively by inputting an erasing operation.

  The invention described in claim 6 has the same configuration as that of the invention described in any one of claims 1 to 5, and the electronic data detection means detects electronic data set to have confidentiality. And possession presenting means for presenting the possession state outside the portable information storage terminal when the confidential electronic data is detected.

  According to a seventh aspect of the present invention, the portable information storage terminal according to the first aspect, an exit gate for restricting the exit from the monitoring area, and reception for receiving status information from the status transmission means of the portable information storage terminal Means, and gate control means for performing control for restricting the exit of the exit gate according to the received status information.

  The invention described in claim 8 has the same configuration as that of the invention described in claim 7, and further includes setting means for setting the electronic data to be confidential, and the electronic data detection means of the portable information storage terminal includes: Only electronic data set to have confidentiality is targeted.

First aspect of the present invention, unlike the prior art erasing the electronic data in response to detecting that the current position of the positioning means such as GPS, voice change in brightness or around the periphery of the terminal change or the terminal itself Since the status change is detected and the status information regarding the electronic data is transmitted according to the detection result, transmission is possible without being affected by the accuracy of the positioning means. Moreover, it is possible to more effectively prevent the electronic data from being taken out by the state detection means detecting the transportation or movement of the terminal or detecting the state change associated therewith.
Further, the present invention eliminates the need for positioning means and is suitable for downsizing, and therefore can be applied to an external memory device that can be connected to an I / O of an information processing device. Electronic data using the external memory device Can be prevented from flowing out.

  In the invention according to claim 2, since the state detecting means detects the change of the portable information storage terminal or the state accompanying the carry, it is possible to detect a preliminary state that leads to taking out electronic data. It is possible to prevent electronic data from being taken out in a leak-free manner.

  The invention according to claim 3 includes a power source that constantly supplies power to the state detection means and the status transmission means, so that it is possible to always transmit status information even when the main power of the portable information storage terminal is turned off. Become.

  In the invention according to claim 4, since the electronic data detection means detects only the electronic data set to have confidentiality, it can be distinguished from the electronic data not to be managed, and more appropriately It is possible to monitor the taking out of electronic data.

  The invention according to claim 5 is provided with an erasing processing means for collectively erasing confidential electronic data. Therefore, even if a plurality of confidential electronic data is held, each confidential It is possible to confirm the presence / absence and eliminate the need to erase one by one, eliminating the complexity of the erasure and facilitating handling.

  Since the invention according to claim 6 includes possession presentation means, it is possible to make the user of the portable information storage terminal recognize the existence of confidential electronic data or electronic data to be erased. Can be reduced.

  According to the seventh aspect of the invention, since the control for restricting the passage of the exit gate is performed according to the status information from the portable information storage terminal, it is possible to effectively prevent the electronic data from flowing out of the monitoring area. It becomes.

  In the invention described in claim 8, since control for restricting passage of the exit gate is performed for a portable information storage terminal having electronic data having confidentiality, electronic data having particularly high confidentiality is moved out of the monitoring area. It is possible to effectively prevent the outflow.

It is a block diagram which shows schematic structure of the information management system in 1st embodiment. It is a block diagram which shows schematic structure of the receiving terminal shown in FIG. It is a block diagram which shows schematic structure which shows the other example of a receiving terminal. It is a block diagram which shows schematic structure of the gate control terminal shown in FIG. It is a block diagram which shows schematic structure of the information management server shown in FIG. It is explanatory drawing which represented the content of the electronic data information in the chart form. It is explanatory drawing which represented the content of status information in the form of a chart. It is a block diagram which shows schematic structure of the portable information storage terminal shown in FIG. It is a block diagram which shows schematic structure of the IC tag with which a portable information storage terminal is provided. It is the flowchart which showed the process from the production | generation process of status information to alerting | reporting control. It is a flowchart of batch erasure processing of electronic data having confidentiality. It is a flowchart of a transmission process of status information. It is a block diagram which shows schematic structure of the portable information storage terminal of 2nd embodiment. It is explanatory drawing which shows an example of the state detection part of a portable information storage terminal. 12A and 12B are explanatory diagrams illustrating an example of a state detection unit of a portable information storage terminal. It is explanatory drawing which shows an example of the state detection part of a portable information storage terminal. It is explanatory drawing which shows an example of the state detection part of a portable information storage terminal. It is explanatory drawing which shows an example of the state detection part of a portable information storage terminal. 16A and 16B are explanatory diagrams illustrating an example of a state detection unit of a portable information storage terminal. It is a block diagram which shows schematic structure of the information management system in 3rd embodiment. It is a block diagram which shows schematic structure of the portable information storage terminal shown in FIG.

(First embodiment: overview)
The first embodiment is an information management system 1000 for preventing electronic data permitted to be used only within a predetermined permission area (monitoring area) determined in advance from flowing out of the permission area.
Hereinafter, the information management system 1000 will be described in detail with reference to the drawings. In this embodiment, one indoor section is set as the permitted area, but it can also be applied to an outdoor area that allows entry / exit only from a predetermined entrance / exit.

  The information management system 1000 includes a gate device 400 as an exit gate that regulates exit from the area provided at the entrance and exit of the permission area described above, an information management server 100 that provides and manages electronic data, and electronic data. The portable information storage terminal 200 that can be obtained and used for browsing and the reception for receiving status information that is provided in the gate device 400 and determines permission to pass through the gate device 400 from the portable information storage terminal 200 The terminal 300 and the gate control terminal 600 that controls the gate device 400 are mainly configured. A plurality of gate devices 400, receiving terminals 300, gate control terminals 600, and portable information storage terminals 200 may exist.

(Gate device)
The gate device 400 includes an openable / closable door 401 provided at the entrance / exit of the permission area, and an actuator that locks the door so as not to open. The actuator of the gate device 400 can be controlled by the gate control terminal 600 through the network 142, and is controlled so that the lock is activated in a predetermined case, and traffic is restricted.

(Receiving terminal)
FIG. 2 is a block diagram showing the configuration of the receiving terminal 300. The receiving terminal 300 mainly stores a control unit 310 that executes control of communication with the outside, a program that defines various processes of the control unit 310, and individual information and status information received from each portable information storage terminal 200. The first communication unit 330, which is a tag reader that performs wireless communication between the memory 320 and the IC tag 230 of each portable information storage terminal 200, and the information management server 100 and the gate control terminal 600 communicate with each other. It mainly includes a second communication unit 340 and a bus 350 that connects each unit.

The first communication unit 330 is an RFID (Radio Frequency IDentification) tag mounted on the portable information storage terminal 200 side, NFC (Near Field Communication (trademark)), ZigBee (trademark), or any other short-range communication. And a function of transmitting radio waves to request the portable information storage terminal 200 close to the receiving terminal to request individual information and status information, and the individual information and status from the portable information storage terminal 200 It has a function to receive information.
In addition, in order to give the first communication unit 330 a function of detecting that the portable information storage terminal 200 has approached the gate device 400, it is desirable to use a short-range communication method that allows communication only when approaching. . However, when a plurality of portable information storage terminals 200 exist within the permitted area, the reception intensity is adjusted so that a certain range around the gate device 400 can be communicated, and one portable information storage terminal is stored. When the passage of the terminal 200 is permitted, the portable information storage terminal 200 near the gate device 400 outside the communication area may be prevented from passing together.
Further, the first communication unit 330 may be a communication method other than the above as long as it is a short-range communication technology. For example, infrared communication or human body communication that is a proximity communication technique may be used.
Here, the human body communication is transmitted between the portable information storage terminal 200 and the receiving terminal 300 via a human being when the person carrying the portable information storage terminal 200 contacts or approaches the surface of the receiving terminal 300. In this method, communication is performed by a weak current or electric field change.

  The second communication unit 340 communicates with the information management server 100 and the gate control terminal 600 and has a function of transmitting individual information and status information received from the portable information storage terminal 200. As the communication method, a wired LAN using a cable, a wireless wireless LAN, or any other communication method capable of data transmission may be used.

The memory 320 is a storage device that stores the individual information and status information received from the portable information storage terminal 200 until they are transmitted to the information management server 100 and the gate control terminal 600.
Further, for example, when a plurality of gate devices 400 and receiving terminals 300 are provided in the permitted area, the identification information unique to each receiving terminal 300 is stored in the memory 320 so that the receiving terminal 300 can be identified. You may save in. This identification information is incidentally transmitted when the individual information and status information received from the portable information storage terminal 200 are transmitted to the information management server 100 and the gate control terminal 600, and which receiving terminal 300 has received. It is desirable to be able to identify.

  The control unit 310 periodically transmits a radio wave for communication with the portable information storage terminal 200 by the first communication unit 330 and the portable type received by the first transmission unit 330 in response to the transmission of the radio wave. Control for storing individual information and status information from the information storage terminal 200 in the memory 320, and control for transmitting the individual information and status information in the memory 320 to the information management server 100 and the gate control terminal 600 by the second communication unit 340. And do. Further, as described above, when identification information unique to the receiving terminal 300 is prepared in the memory 320, the identification information is attached and transmitted to the information management server 100 and the gate control terminal 600.

  As shown in FIG. 3, the receiving terminal 300 may be a gate device 400 </ b> A that is integrated with the gate device 400. In this case, the gate device 400 </ b> A may have the same configuration as the receiving terminal 300 (the same reference numerals are assigned), and the actuator 402 of the door 401 may be controlled by the control unit 310. That is, the control unit 310 locks the gate door 401 when the status information received from the portable information storage terminal 200 detects that the portable information storage terminal 200 has confidential electronic data. Thus, the actuator 402 is controlled.

(Gate control terminal)
FIG. 4 is a block diagram showing the configuration of the gate control terminal 600. The gate control terminal 600 includes a control unit 610 that controls opening and closing of the gate device 400, a program that defines various processes of the control unit 610, a memory 620 that stores individual information and status information received from the receiving terminal 300, and a reception It mainly includes a communication unit 630 that communicates with the terminal 300 and the information management server 100, and a bus 640 that connects the units.

  The communication unit 630 communicates with the information management server 100 and the reception terminal 300, and has a function of receiving the individual information and status information of the portable information storage terminal 200 from the reception terminal 300 and transmitting to the information management server 100. Yes. As the communication method, a wired LAN using a cable, a wireless wireless LAN, or any other communication method capable of data transmission may be used.

  The memory 620 is a storage device that stores the individual information and status information of the portable information storage terminal 200 received from the receiving terminal 300 until it is transmitted to the information management server 100. In addition, a control program for the gate device 400 is also stored.

The control unit 610 refers to the individual information and status information of the portable information storage terminal 200 transmitted from the receiving terminal 300 when the portable information storage terminal 200 passes through the gate device 400, and refers to the portable information storage terminal 200. Is controlled so that the door 401 of the gate device 400 is locked.
Note that when there are a plurality of portable information storage terminals 200 in the permitted area and the receiving terminal 300 receives status information or the like from the plurality of portable information storage terminals 200, each portable information storage terminal If even one of the 200 status information indicates that confidential electronic data is held, control is performed so that the door 401 of the gate device 400 is locked. As a result, when the door 401 for allowing the normal portable information storage terminal 200 to pass through is unlocked, the abnormal (portable information storage terminal holding confidential data) is prevented from passing together. It becomes possible to do.
The control unit 610 also performs processing for transmitting the status information and individual information of the portable information storage terminal received from the receiving terminal 300 to the information management server 100 through the communication unit 630.

(Information management server)
The information management server 100 transmits electronic data to each portable information storage terminal 200 through a network or other communication means, and acquires individual information and status information from the portable information storage terminal 200 and the gate control terminal 600.
FIG. 5 is a block diagram showing the configuration of the information management server 100.
The information management server 100 includes a control unit 110 that performs various processes to be described later, a ROM 120 that stores a program that defines various processes of the control unit 110, a RAM 130 that serves as a work area when the processes of the control unit 110 are executed, A communication unit 140 that communicates information with each portable information storage terminal 200, receiving terminal 300, and gate control terminal 600, a data memory 150 that stores various data, and a predetermined amount of information in the data memory 150 Are provided with an input unit 160 for inputting the settings, a display unit 170 for displaying various types of information in the data memory 150, and a bus 180 for connecting the above components.

As shown in FIG. 1, the communication unit 140 includes an access point 141 fixedly installed at a plurality of locations in the permitted area for performing wireless communication with each portable information storage terminal 200, and each access point 141 and information It is mainly composed of a network 142 that connects the management server 100. The receiving terminal 300 and the gate control terminal 600 are connected to the network 142 via a cable.
The communication unit 203 of the portable information storage terminal 200 to be described later can employ various types of wireless systems, but an access point 141 conforming to the wireless system common to the portable information storage terminal 200 is used. In order to enable electronic data to be transmitted to each portable information storage terminal 200 throughout the permitted area, at least one access point 141 is installed.

The input unit 160 functions as a setting unit that performs an operation for setting the presence / absence of confidentiality of each electronic data in addition to an operation input for displaying data in the data memory 150.
The display unit 170 is a display that displays data in the data memory 150 in accordance with display control of the control unit 110.

  The data memory 150 includes an electronic data storage unit 151 that stores various electronic data to be transmitted to each portable information storage terminal 200, and status information of each portable information storage terminal 200 in the latest state acquired by the information management server 100. And a status storage unit 152 that stores individual information in association with each other, and an electronic data information storage unit 153 that stores information related to electronic data in the data memory 150.

In the electronic data storage unit 151, various electronic data to be transmitted to each portable information storage terminal 200 is stored. These electronic data are subject to document data, image data, audio data, moving image data, and other data of any format having information value.
Electronic data may or may not be confidential. For example, the former is document data such as office documents / tables, etc., which is not disclosed to external organizations, and appropriate confidentiality depending on the contents. applicable is data such as sex securing is required, as the latter, (is not necessary to ensure the confidentiality as a company) paper / books / newspaper has been or public such as document data corresponds.

Electronic data information storage unit 153, the electronic data information about all electronic data stored in the electronic data storage unit 15 1 of the data memory 150 is stored. FIG. 6 is an explanatory diagram showing the contents of the electronic data information in a chart format. As shown in the figure, the electronic data information stores the data identification number, file name, data capacity, file format, and confidentiality for each electronic data.
Data identification number, when the electronic data is stored in the electronic data storage unit 15 1, which is a unique identification number in the server to be added to the header.
The presence / absence of confidentiality can be set by rewriting the setting of the presence / absence of confidentiality in the electronic data information by performing setting work on arbitrary electronic data by the input unit 160 described above. Information indicating the presence or absence of confidentiality is embedded in the electronic data itself by recording the electronic data in a header or other known methods.

The status storage unit 152 stores the status information and individual information of each portable information storage terminal 200 transmitted from the gate control terminal 600. The status storage unit 152 performs sequential overwrite update, and stores the latest status information and individual information acquired by the information management server 100. FIG. 7 is an explanatory diagram showing the storage contents of the status information of each portable information storage terminal in the form of a chart. As shown in the figure, the status information is stored in association with the individual information of each portable information storage terminal, and the reception time is also recorded. Further, when the status information is updated in each portable information storage terminal 200, the status information of the corresponding individual information is updated by overwriting.
In the status information, “True” indicates that confidential electronic data is retained, and “False” indicates that confidential electronic data is not retained.

  The control unit 110 includes, for example, a CPU (Central Processing Unit) (not shown) and the like, and functions as a communication control unit 111, an electronic data information generation unit 112, and an information management unit 113 are stored in the ROM 120. This is realized by reading and executing various programs.

  Upon receiving a request from each portable information storage terminal 200, the communication control unit 111 executes control for transmitting designated electronic data to the portable information storage terminal 200 via the communication unit 140.

The electronic data information creation unit 112 reads the setting information from each electronic data for the electronic data in the electronic data storage unit 151 and records it as electronic data information. For the data identification number, a process for attaching the electronic data is executed according to the order recorded in the electronic data storage unit 151.
Further, when an operation for setting or canceling confidentiality is executed for each electronic data by the input unit 160, the presence or absence of confidentiality of the electronic data information is updated according to the input of setting or canceling. Further, the portable information storage terminal 200 also includes an electronic data information storage unit 223 (described later), and the electronic data transmitted to the portable information storage terminal 200 before changing the confidentiality setting is a new confidentiality information. Since the change of the setting content is not reflected, when the electronic data information is updated by setting or canceling the confidentiality, control is performed to distribute the updated electronic data information to each portable information storage terminal 20 through the communication unit 140. Run. Thereby, each portable information storage terminal 200 can update the electronic data information in the electronic data information storage unit 223 to the latest contents.

  The information management unit 113 performs processing for storing the status information and the individual information received from the outside through the network in association with each other in the status storage unit 152 together with the reception time. As described above, when the status information is updated, the status information corresponding to the individual information of the updated portable information storage terminal is overwritten and updated.

(Portable information storage terminal)
The portable information storage terminal 200 is an information processing apparatus for storing electronic data transmitted from the information management server 100 within the permitted area and for using the electronic data. Specifically,
It corresponds to a portable information processing terminal such as a personal computer (PC), a personal digital assistant (PDA), and electronic paper.
FIG. 8 is a block diagram showing the configuration of the portable information storage terminal 200.
The portable information storage terminal 200 includes a control unit 210 that performs various processes to be described later, a ROM 201 that stores a program that defines various processes of the control unit 210, and a RAM 202 that becomes a work area when the processes of the control unit 210 are executed. A communication unit 203 that communicates with the information management server 100, a data memory 220 that stores various data, an operation input unit 204 that performs various operation inputs of the portable information storage terminal 200, and a data memory 220 The information presentation unit 205 for presenting various types of information, the bus 206 for connecting the above components, the IC tag 230 for communication with the receiving terminal 300 (see FIG. 9), and the IC tag 230 connected to the bus 206 Interface 207 and portable information storage terminal 200 when the electronic data having confidentiality is held outside the terminal An informing unit 208 for informing a presence state, a main power source 241 that is switched on and off by an operation from the operation input unit 204, and a standby power source 242 that supplies power to the control unit 110 even when the main power source 241 is off. ing.

As shown in FIG. 1, the communication unit 203 is for performing wireless communication with the information management server 100 and uses any one of wireless LAN, UWB, Wireless USB, Bluetooth, Zigbee, and the like. Can do. That is, the communication unit 203 has a function of receiving electronic data from the information management server 100.
The communication method of the communication unit 203 of the portable information storage terminal 200 can be selected from the above-described various methods, but it is needless to say that the communication method of the communication unit 140 of the information management server 100 needs to be shared.

The operation input unit 204 includes input interfaces such as a keyboard, a mouse, a touch panel, and operation buttons for inputting operations when obtaining and using electronic data, and a power switch for turning on and off the main power source 241 of the terminal. ing.
The operation input unit 204 is also used when performing an input operation when performing batch erasure of confidential electronic data, which will be described later.
The information presentation unit 205 is for presenting the content of electronic data held by the portable information storage terminal 200 to the user, and presenting individual information and electronic data information described later of the portable information storage terminal 200. Specifically, display panels (liquid crystal, EL, electronic paper, etc.) correspond to this.

  The notification unit 208 is for notifying the outside that the portable information storage terminal 200 has confidential electronic data. For example, the notification unit 208 flashes a notification lamp, a vibrator mechanism that generates vibration, a notification Any means that can be recognized by the user of the portable information storage terminal 200, such as a sound output means such as a buzzer for emitting sound, is used. In addition, you may have a function as the alerting | reporting part 208, such as the information presentation part 205 performing alerting | reporting display.

  The data memory 220 includes an electronic data storage unit 221 that stores various types of electronic data transmitted from the information management server 100, an electronic data information storage unit 223 that stores information related to the electronic data in the data memory 220, and portable information. An individual information storage unit 224 that stores individual information of the storage terminal 200 and a status information storage unit 222 that stores status information of the portable information storage terminal 200 are provided.

The electronic data storage unit 221 stores document data, image data, audio data, moving image data, and other data having any information value transmitted to the portable information storage terminal 200 as electronic data.
That is, the electronic data storage unit 221 functions as an “electronic data storage unit”.

  In the individual information storage unit 224, the serial number and manufacturing number of the portable information storage terminal 200 are stored as individual information. The individual information is a unique number for each portable information storage terminal 200, and there is no overlapping information, so that only one portable information storage terminal 200 can be specified.

The electronic data information storage unit 223 stores electronic data information related to all electronic data stored in the electronic data storage unit 221. Such electronic data information is recorded for the same parameters as the electronic data information recorded by the information management server 100 described above (see FIG. 6). That is, the electronic data information stores the data identification number, file name, data capacity, file format, and confidentiality for each electronic data and edited electronic data.
The electronic data information is updated when the electronic data received from the information management server 100 is added to the electronic data storage unit 221 and every time the electronic data is deleted.

The status information stored in the status information storage unit 222 is information indicating whether or not all electronic data stored in the portable information storage terminal 200 has confidentiality. Such status information can be obtained by referring to electronic data information in the electronic data information storage unit 223 and counting the number of individuals of confidential electronic data.
That is, the status information storage unit 222 functions as a “status storage unit”.

  The control unit 210 includes, for example, a CPU (not shown) and the like, and functions as a communication control unit 211, a data processing unit 212, an electronic data information generation unit 213, an erasing processing unit 214, and a power control unit 215. This is realized by reading and executing various programs stored in the program.

The communication control unit 211 requests the information management server 100 to transmit electronic data through the communication unit 203 and executes processing for storing the electronic data transmitted according to the request in the electronic data storage unit 221. Further, when requesting, the individual information of the portable information storage terminal 200 is transmitted to the information management server 100.
The data processing unit 212 uses the data according to the data format of the acquired electronic data. For example, when the electronic data is document data or image data, the information presentation unit 205 displays a character string or an image indicated by the data so that the data can be browsed and used.
In addition, the data processing unit 212 may prepare various types for each data type. Also, a known usage process is executed for each type of data.

The electronic data information generation unit 213 reads setting information for all electronic data stored in the electronic data storage unit 221 to generate electronic data information, and records the electronic data information in the electronic data information storage unit 223. Such updating of electronic data information is performed when new electronic data is added to the electronic data storage unit 221 and whenever electronic data is erased by an erasing processing unit 214 described later.
In addition, as described above, when the confidentiality setting is changed for any electronic data in the information management server 100, the electronic data information held by the server is updated, and the updated electronic data information is stored in the portable information. It is distributed to the storage terminal 200. Therefore, the electronic data information received by the distribution is referred to, and when the electronic data held by the portable information storage terminal 200 is changed, the electronic data information of the portable information storage terminal 200 is also updated.

Further, every time the electronic data information is updated, the electronic data information generation unit 213 creates status information for transmission by the IC tag 230 described later, and always prepares the latest status information in the status information storage unit 222. If the request is received from the IC tag 230, the status information is “True” (only when the portable information storage terminal 200 has confidential electronic data). Process to send.
The status information refers to the electronic data information, confirms whether each electronic data is confidential, performs a process of counting up the number of individuals each time sensitive electronic data is detected, and the final count number Is generated based on whether or not becomes 1 or more. When at least one electronic data having confidentiality exists, the status information is recorded with the status flag set to “True”, and when none exists, the status information is recorded with the status flag set to “False”.

When the operation input unit 204 performs an operation input for erasing confidential electronic data in a state where the status information is “True”, the erasure processing unit 214 includes the electronic data stored in the electronic data storage unit 221. , Sort out those that are set as confidential, and execute the process of deleting all of them in order.
That is, the erasure processing unit 214 functions as “erase processing means”.

The notification processing unit 216 controls the notification unit 208 to control blinking of the lamp, vibration of the vibrator, generation of notification sound, etc., when it is determined that “True” (there is confidential electronic data) when generating the status information. The notification control to the outside is executed.
The notification control can also be canceled by performing batch erasure of confidential electronic data by the erasure processing unit 214 described above, but can also be canceled by the notification cancellation unit 217. The notification canceling unit 217 detects the operation by performing some predetermined operation, and cancels the notification control.
For example, when the portable information storage terminal 200 is shaken with a specific rhythm or pattern for the release operation, a sensor for detecting vibration is provided, and whether the sensor detection indicates a specific rhythm or pattern. The notification release unit 217 determines and releases the notification control according to the determination result.
Further, when the portable information storage terminal 200 has an accessory, attaching the accessory by a predetermined method is defined as a release operation, and a detection unit such as a micro switch for detecting the attachment of the accessory is provided. It is good also as a structure which the alerting | reporting cancellation | release part 217 determines whether it is mounted | worn by the method of this, and cancels | reports control according to the determination result. For example, when the portable information storage terminal 200 includes a stylus pen, and the stylus pen is put upside down, it is detected.
In addition, a microphone is provided as a detection means, and the release operation is to cast a specific utterance or keyword, and the notification release unit 217 determines whether the voice data obtained by the microphone matches the specific utterance or spell, It is good also as a structure which cancel | releases alerting | reporting control according to the determination result.
In addition, a light-receiving sensor is provided as a detection means, and a light-and-dark detection pattern obtained by the light-receiving sensor is set as a release operation by inputting the light and dark by shielding the detection unit with a specific time interval pattern. It is good also as a structure which the alerting | reporting cancellation | release part 217 determines whether it corresponds, and cancel | releases alerting | reporting control according to the determination result.
Furthermore, inputting some of the keys and buttons of the operation input unit 204 in a predetermined order is set as a release operation, and the notification release unit 217 determines whether the input from the operation input unit 204 matches the planned pattern. However, it is good also as a structure which cancel | releases alerting | reporting control according to the determination result.

  The power control unit 215 performs power control to turn off the main power by turning off the power from the operation input unit 204, or does not completely turn off the main power 241 by the operation from the operation input unit 204. The power supply control is performed by the resume process for switching to the power saving mode in which the power supply to an unnecessary configuration is cut off while the current use state is stored by maintaining the power supply state.

  As shown in FIG. 9, the IC tag 230 includes a control unit 231, a data memory 232, and a communication unit 233, all of which are integrated into an IC chip for performing data communication with the receiving terminal 300. Therefore, a control system different from the main control system (referred to as main control system S) of the portable information storage terminal 200 is configured. The main control system S of the portable information storage terminal 200 and the control system of the IC tag 230 can exchange commands and data with each other.

The communication unit 233 employs the same communication method in order to communicate with the first communication unit 330 of the receiving terminal 300. For example, a short distance such as RFID or NFC (trademark), ZigBee (trademark), etc. Communication system is possible. Moreover, it is what is called a passive type, The coil which performs communication produces electric power according to transmission from the receiving terminal 300, and the electric power required for the action | operation of the IC tag 230 is supplied. That is, the IC tag 230 has a structure that performs self-power generation and does not receive power supply from the main power supply 241 of the portable information storage terminal 200.
The communication unit 233 functions as a status transmission unit that transmits the status information and the individual information of the portable information storage terminal 200 to the outside.

  Although the IC tag 230 adopts a passive type, it is possible to transmit status information and the like triggered by the approach to the receiving terminal 300. However, the active type is not limited to the passive type. good. In this case, the IC tag 230 transmits status information or the like constantly or periodically, and is transmitted only when entering the area where communication with the receiving terminal 300 is possible. Further, when the active type is adopted, the IC tag 230 requires a power source. As such a power source, a normal primary battery or secondary battery may be used, or a generator or a solar battery that generates power by receiving external force such as vibration may be used.

The data memory 232 includes an individual information storage unit 234 and a status information storage unit 235 for storing individual information and status information acquired from the main control system S by the control unit 231.
When the communication unit 233 receives the radio wave from the receiving terminal 300 in the communication unit 233, the control unit 231 requests the main control system S for individual information and status information, and when these are acquired, the communication unit 233 transmits the received information to the receiving terminal 300. Control. When the IC tag 230 is an active type, the IC tag 230 is not limited to when the radio wave from the receiving terminal 300 is received, and the latest individual information and status information are always acquired from the main control unit S side. It is desirable to set so that the transmission process is performed so that the main control unit S actively transfers data to the IC tag 230 side.
As described above, since the IC tag 230 operates with the electric power generated by the reception of the radio wave by the communication unit 233, the individual information and the status information are transmitted only when the radio wave is received from the receiving terminal 300. It has become.
The IC tag 230 has a function that is substantially equivalent to the function of detecting that the portable information storage terminal 200 has entered the area within the range from the area outside the communicable range of the receiving circuit 300. It will function as “state detection means for detecting a change in the state around the portable information storage terminal”.

(Main power and standby power)
The main power supply 241 is a battery that is a removable secondary battery, and supplies power to the main control system S when the main power supply is turned on by the operation input unit 204.
The standby power source 242 is a battery that is a secondary battery. When the main power source is turned off by the operation input unit 204, the standby power source 242 supplies power to the control unit 210 of the main control system S and transmits radio waves from the receiving terminal 300. It is possible to always monitor requests for status information and the like from the IC tag 230 by reception.
Further, the standby power source 242 is charged when the portable information storage terminal 200 receives power from the outside by wire.

(Various processing of portable information storage terminal)
A process performed by the portable information storage terminal 200 of the information management system 1000 configured as described above will be described.
FIG. 10 is a flowchart showing processing from status information generation processing by the electronic data information generation unit 213 to notification control by the notification processing unit 217.
As shown in the figure, when the electronic data of the portable information storage terminal 200 is updated in response to the acquisition or deletion of the electronic data or the distribution of the electronic data information from the information management server 100, the control unit 210 updates the update. The electronic data information is referred to (step S1), and the number of individuals of electronic data in the electronic data storage unit 221 is counted (step S2). Hereinafter, the number of counted electronic data is N.

Next, in order to sequentially determine the presence or absence of confidentiality for each electronic data in the electronic data storage unit 221, a variable i indicating the number of electronic data currently being determined is set to 0 in advance. A variable count indicating the count value of the electronic data is reset to 0 (step S3).
Then, the i-th electronic data is read from the electronic data storage unit 221 (step S4), and a process for reading the confidentiality setting of the electronic data is executed (step S5).
Furthermore, a process of collating the read confidentiality setting information (information on the presence or absence of confidentiality embedded in the electronic data) with the electronic data information is executed (step S6). For example, when the confidentiality setting is changed by the input unit 160 of the information management server 100 after the electronic data is transmitted from the information management server 100 to the portable information storage terminal 200, the electronic data information is The electronic data information distributed from the management server 100 and held in the portable information storage terminal 200 is also updated to the latest state, but the confidentiality embedded in the electronic data stored in the electronic data storage unit 221 Since the setting is not updated, there may be a case where there is no matching in the above collation. In such a case, a process of correcting the confidentiality setting embedded in the electronic data so as to be equal to the electronic data information is performed during the collation.

Next, the control unit 210 determines whether or not the i-th electronic data can be taken out, that is, whether it is confidential (step S7). If it is determined that there is no confidentiality, the process proceeds to step S10.
If it is determined that there is confidentiality, a record indicating that the electronic data is to be erased is embedded in the data (step S8), and the count value count of the electronic data having confidentiality is incremented by one. (Step S9). Then, the process proceeds to step S10.

In step S10, the count value of variable i indicating the current order is incremented by one, and then it is determined whether variable i has reached the total number N of electronic data (step S11). As a result, if N has not yet been reached, the process returns to step S4 to determine whether or not the next electronic data is confidential. If the variable i has reached N, the confidentiality is increased. It is determined whether or not the count value count of the electronic data is 0 (step S12).
In addition, the control part 210 which performs the process from step S4 to this will function as "electronic data detection means which detects about the possession state of electronic data".

As a result, if the count value count is 0, the portable information storage terminal 200 does not have any confidential electronic data (step S13), so the flag status that is status information is set to “False”. "(Step S14), and the process ends.
On the other hand, when the count value count is not 0, the portable information storage terminal 200 has one or more pieces of confidential electronic data (step S15). "(Step S16). Further, notification processing such as lamp lighting is executed by the notification processing unit 216 (step S17), and the process is terminated.

Next, the processing will be described based on a flowchart of the batch erasure processing of confidential electronic data by the erasure processing unit 214 shown in FIG.
As shown in the figure, when execution of batch erasure is input from the operation input unit 204 (step S21), the control unit 210 refers to the electronic data information and counts the number of electronic data in the electronic data storage unit 221. (Step S22). Let N be the count number.

Next, a variable i indicating what number of electronic data is currently determined to be erased is set to 0 (step S23), and the i-th electronic data is read from the electronic data storage unit 221 (step S24). Processing for reading the presence / absence of the setting of the erasure target embedded in the electronic data in step S8 and determining whether or not it is the erasure target is executed (step S25).
As a result, if the i-th electronic data is not an object to be erased, the process proceeds to step S27, and if it is an object to be erased, the electronic data is erased (step S26).
In step S27, one is added to the count value of the variable i indicating the current order, and then it is determined whether the variable i has reached the total number N of electronic data (step S28). As a result, if N has not yet been reached, the process returns to step S24 to determine whether or not the next electronic data is to be erased. The erasure of the electronic data is completed, and the process ends.

  Next, the processing will be described based on the flowchart of the status information transmission processing in FIG. As described above, when the portable information storage terminal 200 enters the reception area of radio waves from the receiving terminal 300 in a state where the status information is “True” (a state in which confidential electronic data is held), the individual information In this description of this process, it is assumed that the portable information storage terminal 200 has entered a radio wave reception range from the receiving terminal 300.

First, the portable information storage terminal 200 reads the status information (step S41) and determines whether or not the status information flag is “True” (step S42).
As a result, if the status information is “False”, the process is terminated without making a call, and if it is “True”, the status information is transmitted to the IC tag 230, and further, the receiving terminal 300 transmits the status information from the IC tag 230. The status information and the individual information are transmitted (step S43).
Then, it is determined whether or not a predetermined time which is a preset transmission cycle of the status information has elapsed (step S44), and when it has elapsed, the process returns to step S42 to determine whether or not the status information flag is “True”. Done. At this time, if the confidential electronic data held by the portable information storage terminal 200 has been erased, the status information becomes “False”, and the processing is terminated without transmitting the status information. If is not erased, status information is transmitted again.
Note that the cycle in which the transmission of status information is repeated can be set from the operation input unit 204, for example.
In addition, when “True” status information is transmitted from the portable information storage terminal 200 within the radio wave reception range of the receiving terminal 300, the gate control terminal 600 controls the actuator of the gate device 400 so that the door 401 does not open. The control to lock to is executed. This prevents leakage of confidential electronic data outside the permitted area.

(Effect of information management system)
When the information management system 1000 does not perform positioning of the portable information storage terminal 200 and changes to the surrounding state of the terminal, that is, enters a communication area with the receiving terminal 300 provided in the gate device 400, the information management system 1000 Accordingly, since the status information is transmitted, the information related to the electronic data held by the portable information storage terminal 200 can be informed to the surroundings without being affected by the error caused by the positioning of the portable information storage terminal 200. It is possible to appropriately take measures against data leakage, for example, by restricting 400.

Furthermore, since the portable information storage terminal 200 includes a standby power source 242 and constantly supplies power to the control unit 210 even when the main power is off, it is possible to always transmit status information even when the main power is turned off. Become.
In addition, since the portable information storage terminal 200 includes the erasure processing unit 214 that collectively erases confidential electronic data by an operation from the operation input unit 204, the portable information storage terminal 200 has a plurality of confidential electronic data. Even so, it is possible to confirm the presence or absence of confidentiality one by one and eliminate the need to erase one by one, eliminating the complexity of the erasure and facilitating handling. .
In addition, since the portable information storage terminal 200 includes a notification unit 208 that performs notification when electronic data having confidentiality is held, the user of the portable information storage terminal recognizes the presence of electronic data to be deleted. Therefore, it is possible to reduce the accidental removal of electronic data.

  In addition, since the gate control terminal 600 performs control to restrict passage of the gate device 400 according to the status information from the portable information storage terminal 200, it is possible to effectively prevent outflow of electronic data outside the permitted area. Is possible.

(Other)
The communication method of the communication unit 140 of the information management server 100 and the communication unit 203 of the portable information storage terminal 200 is exemplified by a wireless method, but a wired communication method such as USB or IEEE1394 may be used. In that case, when carrying the portable information storage terminal 200, the cable is removed from the connector.

In addition, the portable information storage terminal 200 may have a configuration including an editing unit that corrects and modifies contents as well as browsing and using electronic data. In that case, electronic data whose contents have been changed by editing work (referred to as edited electronic data) may be stored in the portable information storage terminal 200. However, the erasure processing unit 214 determines that the original electronic data is confidential. If it has, the edited electronic data is also to be deleted.
However, when erasing the edited electronic data, it is desirable to provide the portable information storage terminal 200 (especially the control unit 210) with a backup processing unit that transmits the edited electronic data to the information management server 100 before erasing the edited electronic data.

  In addition, an example has been shown in which the confidentiality of electronic data can be set only in two stages, with and without, but when there is confidentiality, the confidentiality can be set in stages according to the importance. Also good. In this case, for example, when the permitted area is divided into a plurality of areas, it is possible to manage electronic data that can be taken out at each stage of confidentiality.

Further, in the above-described processing for generating status information, the processing may be ended as “True” when at least one electronic data having confidentiality is detected.
Further, in the batch erasure process of electronic data, when one piece of confidential electronic data is detected, a process of erasing all electronic data regardless of the presence or absence of confidentiality may be performed. Further, in the batch erasure process, when electronic data having confidentiality is not detected and an operation input for batch erasure is performed, a process of erasing all electronic data regardless of the presence or absence of confidentiality may be performed.

  Further, as an example of the state detection means for detecting the state change of the portable information storage terminal 200 itself, there is one that detects a change in status information of the portable information storage terminal 200. For example, the electronic data information generation unit 213 includes the electronic data information held by the portable information storage terminal 200 when the electronic data of the electronic data storage unit 221 increases or decreases and when the electronic data information of the information management server 100 is distributed. Status information is updated. When status information is updated, the status information is detected, and the status information and the individual information updated through the communication unit 203 are transmitted to the outside, that is, the information management server 100. An update status information transmission unit may be provided in the control unit 210.

(Second embodiment)
In the information management system 1000 which is the first implementation mobile phone, the IC tag 230 of the portable information storage terminal 200 is provided with a function as a state detection means for detecting a state change around the portable information storage terminal, and the portable information storage device The status information is transmitted when the terminal 200 enters the communication range of the receiving terminal 300 as a trigger.
On the other hand, as shown in FIG. 13, the portable information storage terminal 200A of the information management system according to the second embodiment has a state detection unit as a state detection unit separately from the IC tag 230 (see FIG. 9). 240A is installed, a predetermined state change occurring in the portable information storage terminal itself is detected, and when the detection is detected, status information and individual information of the portable information storage terminal 200A are transmitted to the information management server 100. It is said. As in the portable information storage terminal 200, the portable information storage terminal 200A also transmits the status information and the individual information by the IC tag 230 when it enters the communicable range with the receiving terminal 300.
Hereinafter, the configuration of the portable information storage terminal 200A that is different from the configuration of the portable information storage terminal 200 will be mainly described. Further, since the information management server 100, the receiving terminal 300, the gate device 400, and the gate control terminal 600, which are other configurations of the information management system 1000, are the same as those in the first embodiment described above, description thereof will be omitted.

  The state detection unit 240A of the portable information storage terminal 200A detects the state change accompanying the carrying of the terminal 200A or carrying, and an example of the state detection unit 240A will be described below.

(1) As shown in FIG. 14, the portable information storage terminal 200A is connected to a cable 242a (for example, a power cable or a communication cable) via a connector 241a. As a state change, it may be configured to detect that the cable 242a is disconnected from the connector 241a.
The action of removing the cable from the portable information storage terminal 200A is a preparation action for carrying and moving the portable information storage terminal 200A, and corresponds to a state change accompanying the carrying of the portable information storage terminal 200A.
In this case, the state detection unit 240A may detect a state in which the cable 242a is disconnected from the connector 241a by a sensor such as a micro switch, or detect a voltage change that occurs in the connector 241a when the cable 242a is a power cable. May be.
Further, when the control unit 210 of the portable information storage terminal 200A manages the power supply by software, the state detection unit 240A can be realized by software processing.
Furthermore, when the cable 242a is a communication cable and the communication state is managed by the control unit 210, the state detection unit 240A can be realized by software processing executed by the control unit 210. is there.
When the cable is a communication cable, the communication unit 203 employs a communication method other than the communication cable.

For example, when status information is transmitted at random, when the status information is received outside the portable information storage terminal 200A, measures should be taken to prevent leakage of confidential electronic data. However, as in the above example, if the status information is transmitted at the time of detecting the state change that causes the portable information storage terminal 200A to be carried, the external configuration that receives this information can be used. Therefore, it is possible to take measures at an appropriate timing at the start of carrying the portable information storage terminal.
Furthermore, when detecting the cable removal state as a state change, the portable information storage terminal 200A can be detected with the existing configuration, so that the manufacturing cost is reduced compared to the case where a new detection means is provided. In addition, it is possible to solve the problem of impairing portability due to an increase in size and weight.

(2) As shown in FIGS. 15A and 15B, the state detection unit 240A is configured to detect a change in posture and angle such as movement and tilt by carrying the portable information storage terminal 200A as a state change. It is also good.
The action for detecting the movement of the portable information storage terminal 200A need not be described. Further, when a change occurs in the inclination of the portable information storage terminal 200A, the portable information storage terminal 200A is held vertically with the terminal 200A for carrying from the state in which the portable information storage terminal 200A is placed on a horizontal plane. This corresponds to a state change accompanying carrying.
In this case, an acceleration sensor or a gyro sensor that detects an acceleration change in a predetermined direction (desirably orthogonal to each other in the X, Y, and Z directions) is mounted as the state detection unit 240A, and the position of the portable information storage terminal 200A Detects the occurrence of changes and changes in angle.

  Also in this example, since the status information is transmitted at the time of detecting the state change that causes the portable information storage terminal 200A to be carried, it is appropriate from the external configuration that receives this information when the portable information storage terminal 200A is carried. It is possible to take measures at appropriate timing.

Further, vibration generated in the portable information storage terminal 200A may be detected using the acceleration sensor or the gyro sensor, and this may be detected as a state change. When the vibration of the portable information storage terminal 200A changes, it indicates that the portable information storage terminal 200A has been placed and used and has shifted to a state of moving with the terminal 200A. It corresponds to.
Further, the vibration detection is further developed, and a sensor detection pattern due to vibration caused by normal walking of the user is stored in advance, and compared with the detection pattern when occurrence of vibration is detected in the portable information storage terminal 200A. Thus, vibrations other than those caused by normal walking may be detected as state changes. In this case, if you simply move within the permitted area, you can obtain a detection pattern by normal walking, but if you intend to take out confidential electronic data, the walking state will change, such as faster walking due to impatience. It is possible to detect this. That is, it is possible to prevent electronic data from leaking.

(3) As shown in FIG. 16, the state detection unit 240A may be configured to detect a change in brightness around the portable information storage terminal 200A as a state change.
If there is a change in the brightness around the portable information storage terminal 200A, this indicates that the portable information storage terminal 200A has transitioned to a bag or case K in order to carry the portable information storage terminal 200A. This corresponds to the accompanying state change.
In this case, as the state detection unit 240A, a light receiving sensor having a detection surface facing the outside of the portable information storage terminal 200A is mounted, and a change in brightness or illuminance outside the portable information storage terminal 200A is detected.

  Also in this example, since the status information is transmitted at the time of detecting the state change that causes the portable information storage terminal 200A to be carried, it is appropriate from the external configuration that receives this information when the portable information storage terminal 200A is carried. It is possible to take measures at appropriate timing.

(4) As shown in FIG. 17, when the portable information storage terminal 200A executes a power OFF or resume process and a power supply state change occurs, the state detection unit 240A detects a state change. It is also good.
The action of turning off the power or switching to the resume state is a preparatory action for carrying and moving the portable information storage terminal 200A from now on. The state accompanying the carrying of the portable information storage terminal 200A It corresponds to a change.
In this case, the state detection unit 240A is realized by the control unit 210 executing a program stored in the ROM 201. For example, the state detection unit 240A detects the execution of the control in which the power supply control unit 205 sets the power supply to 0FF or the control of the resume. Further, the state detection unit 240A may detect an operation for executing the power supply 0FF performed by the operation input unit 204 or an operation for executing the resume, or may detect a voltage change in the main power supply to turn the power off or resume. May be detected.

Also in this example, since the status information is transmitted at the time of detecting the state change that causes the portable information storage terminal 200A to be carried, it is appropriate from the external configuration that receives this information when the portable information storage terminal 200A is carried. It is possible to take measures at appropriate timing.
Further, when detecting a change in the state of the power supply as a change in state, the portable information storage terminal 200A can be detected with the existing configuration, so that the manufacturing cost is reduced compared to the case where a new detection means is provided. In addition, it is possible to solve the problem of impairing portability due to an increase in size and weight.

(5) As shown in FIG. 18, the state detection unit 240A may be configured to detect a change in sound volume around the portable information storage terminal 200A as a state change.
When the sound volume around the portable information storage terminal 200A changes, as a result of using the bag or the case K to carry the portable information storage terminal 200A, the surrounding sound becomes portable information storage terminal 200A. This indicates that the state has transitioned to a state that cannot be reached and corresponds to a state change accompanying carrying.
In this case, as the state detection unit 240A, a microphone is mounted outside the portable information storage terminal 200A, and a change in sound volume outside the portable information storage terminal 200A is detected.

  Also in this example, since the status information is transmitted at the time of detecting the state change that causes the portable information storage terminal 200A to be carried, it is appropriate from the external configuration that receives the portable information storage terminal 200A when the portable information storage terminal is started to be carried. It becomes possible to take measures at the timing.

(6) As shown in FIG. 19, when the portable information storage terminal 200A includes an accessory or a movable part, the state detection unit 240A performs operations such as returning the accessory to the storage part or moving the movable part. It is good also as a structure which detects as a state change.
For example, an action such as returning an accessory such as the stylus 243a to the housing portion or moving a movable portion such as the openable lid 244a in the closing direction may interrupt use of the portable information storage terminal 200A. This is a preparatory action for carrying and moving, and corresponds to a state change accompanying carrying of portable information storage terminal 200A.
In this case, the state detection unit 240A detects a change in state by a micro switch that detects contact of an accessory or a movable part, and an optical or other object sensor that detects whether the accessory or the movable part is present at a predetermined position. You may do it.

Also in this example, since the status information is transmitted at the time of detecting the state change that causes the portable information storage terminal 200A to be carried, it is appropriate from the external configuration that receives this information when the portable information storage terminal 200A is carried. It is possible to take measures at appropriate timing.
Furthermore, when detecting a change in the state of an accessory or a movable part as a change in state, the portable information storage terminal 200A is an object to be detected in the existing configuration. Compared with the case where means are provided, it is possible to reduce the manufacturing cost and solve the problem of impairing portability due to an increase in size and weight.

Note that the state detection units 240A of (1) to (6) are not limited to being provided alone, and a plurality of them may be combined and mounted on the portable information storage terminal 200A.
In addition, two or more of the state detection units 240A of (1) to (6) may be implemented, and the state detection performed at fixed intervals may be changed. In that case, it is not necessary for the user of the portable information storage terminal 200A to recognize which state is being detected.

When the portable information storage terminal 200A provided with the state detection unit 240A described above approaches the receiving terminal 300 provided in the gate device 400, the portable information storage terminal 200A transmits status information and individual information from the IC tag 230. As a case other than the approach, the status information and the individual information are also transmitted when any of the state changes described above is detected by the state detection unit 240A. However, since the IC tag 230 can communicate only when it is close to the receiving terminal 300, when transmitting the status information and the individual information when the state change is detected by the state detection unit 240A, the communication is performed through the communication unit 203. I do.
The standby power supply 242 supplies power to the state detection unit 240A in addition to the control unit 210 when the main power supply is OFF. This makes it possible to always detect a change in state even when the main power supply is OFF.

In the case of the portable information storage terminal 200A, similar to the portable information storage terminal 200 described above, status information generation processing and notification control (see FIG. 10), electronic data batch deletion processing (see FIG. 11), status, Information transmission processing (see FIG. 12) is performed.
However, in the case of the portable information storage device 200A, the transmission processing such as status information, and if a communication range of the receiving terminal 300 is not limited to a communication range of the receiving terminal 300, the state detection unit Also executed when a state change is detected by 240A. Further, transmission of status information and the like by the latter is performed from the communication unit 203 instead of the IC tag 230.

(Third embodiment)
The portable information storage terminal 200B of the information management system according to the third embodiment is an information processing apparatus for using electronic data like the portable information storage terminals 200 and 200A of the first and second embodiments. Unlike the external memory terminal, it is an external memory terminal for recording and storing electronic data exclusively from the information processing terminal.
That is, the portable information storage terminal 200 </ b> B does not have a function for performing usage such as browsing the contents of electronic data. In the following description, differences from the above-described portable information storage terminals 200 and 200A will be mainly described, and overlapping description of the same configuration will be omitted.

  As shown in FIG. 20, the information management system 1000B according to the third embodiment includes an information processing terminal 500B connected to a network to which the information management server 100 is connected. The portable information storage terminal 200B It can be attached to and detached from the information processing terminal 500B via a USB terminal which is the unit 203. The information processing terminal 500B can store the electronic data transmitted from the information management server 100 in the portable information storage terminal 200B. That is, the portable information storage terminal 200B acquires electronic data through the information processing terminal 500B.

FIG. 21 is a block diagram of the portable information storage terminal 200B. As shown in FIG. 21, the portable information storage terminal 200B mainly has a function of storing electronic data, and therefore does not include an information presentation unit 205 for browsing electronic data, and the operation input unit 204 is confidential. It has only a function of inputting execution of batch erasure of electronic data having the property.
Further, the main power supply 241 is not provided, and instead, the portable information storage terminal 200B operates with USB bus power when the information processing terminal 500B is connected, and the standby power supply 242 always supplies power to the control unit 210B when not connected. To supply.
The communication unit 203 uses USB, but is not limited to this, and may use wireless USB, Bluetooth (trademark), or the like. However, when using wireless communication, it is necessary to provide a main power supply for always supplying power to the main configuration.

The control unit 210B is substantially the same as the control unit 210 described above, but the communication control unit 211 does not have a function of directly requesting electronic data from the information management server 100.
Further, since the electronic data is stored but cannot be used, the data processing unit 212 is not provided.
Further, since the portable information storage terminal 200B adopts the form of an external memory, the USB terminal is provided with a lid 209B that can be opened and closed, and the notification release unit 217 has the lid 209B on the side opposite to the USB terminal. It is connected to a sensor (not shown) that detects the attachment of the lid 209B to the opposite end so as to cancel the notification control when it is attached to the end. It goes without saying that the notification canceling unit 217 may employ the various methods already described.

  Further, when a wireless communication unit is employed as the communication unit 203, the state detection unit 240A may be mounted in the same manner as the portable information storage terminal 200A. In this case, the state detection unit 240A is provided with a sensor for detecting the above-described attachment of the lid 209B as a state change, and when the cover 209B is attached, the control unit 210B transmits status information and individual information through the communication unit 203. Will do. That is, the action of attaching the lid 209B of the portable information storage terminal 200B, which is an external memory, indicates that the portable information storage terminal 200B is to be carried from now on, and corresponds to a state change accompanying carrying.

When a connector-type USB is used as the communication unit 203, a wireless communication unit may be mounted as the second communication unit. In that case, a sensor as a state detection unit 240A that detects an operation of pulling out the USB connector as the communication unit 203 from the information processing terminal 500B as a state change is provided, and when the pull-out is performed, the control unit 210B provides status information and individual information. It will be transmitted through the communication unit 203. In addition, as the state detection unit 240A, a voltage detection unit that detects a decrease in power supply voltage due to extraction may be used. That is, the action of pulling out the portable information storage terminal 200B, which is an external memory, from the information processing terminal 500B indicates that the portable information storage terminal 200B is to be carried from now on, and corresponds to a state change accompanying carrying.

  Even when the wireless communication means is not provided, the portable information storage terminal 200B is provided with the IC tag 230, so that it is detected that the mobile terminal has entered the communication area of the receiving terminal 300, and the IC tag 230 is detected. The status information and the individual information can be transmitted to the receiving terminal 300 through the communication unit 233.

  As described above, also in the case of the portable information storage terminal 200B adopting the form of the external memory, it is possible to obtain the same effect as the above-described portable information storage terminals 200 and 200A.

  In the case of the portable information storage terminal 200B as well, information presenting means having a minimum display capability for displaying electronic data information and status information to the outside may be provided.

100 Information management server 114 Gate opening / closing control unit (gate control means)
160 Input section (setting means)
200, 200A, 200B Portable information storage terminal 208 Notification unit (owning presentation means)
213 Electronic data information generation unit (electronic data detection means)
214 Erasing processing unit (erasing processing means)
221 Electronic data storage (electronic data storage means)
222 Status information storage unit (status storage means)
230 IC tag (state detection means)
233 communication unit (status transmission means)
240A state detection unit (state detection means)
300 Receiving terminal (receiving means)
400 Gate device (exit gate)
1000, 1000B information management system

Claims (8)

Electronic data storage means for storing electronic data;
Electronic data detection means for detecting the holding state of electronic data in the electronic data storage means;
Status storage means for storing status information indicating a detection result by the electronic data detection means;
A portable information storage terminal comprising status transmission means for transmitting the status information to the outside,
Includes a state detecting means for detecting a state change of the portable information state detection means for detecting the brightness change or a change in ambient sound as a state change of the storage device or around the portable information storage device itself as a state change,
The status transmitting unit, portable information storage device wherein the state change Ri by said state detecting means and performs the sending of the status information to be detected. The state change detected by the state detection means is carried by the portable information storage terminal or a change in ambient brightness or a change in the volume of surrounding sound accompanying the carry or a change in the state of the portable information storage terminal itself. portable information storage device according to claim 1, wherein Rukoto Oh.   3. The portable information storage terminal according to claim 1, further comprising a power source that constantly supplies power to the state detection unit and the status transmission unit.   The portable information storage terminal according to any one of claims 1 to 3, wherein the electronic data detection unit targets only electronic data set to have confidentiality.   An erasure processing unit that erases the confidential electronic data collectively by inputting an erasure operation when the detection by the electronic data detection unit indicates the presence of the confidential electronic data. Item 5. A portable information storage terminal according to Item 4.   The electronic data detecting means detects electronic data set to have confidentiality, and when the electronic data having confidentiality is detected, the electronic data detecting means is held outside the portable information storage terminal. The portable information storage terminal according to any one of claims 1 to 5, further comprising possession presentation means for presenting the existence. A portable information storage terminal according to claim 1;
An exit gate that regulates exit from the surveillance area;
Receiving means for receiving status information from status sending means of the portable information storage terminal;
An information management system comprising: gate control means for performing control for restricting the exit of the exit gate according to the received status information. Comprising setting means for setting the electronic data to be confidential;
8. The information management system according to claim 7, wherein the electronic data detection means of the portable information storage terminal targets only electronic data set to have confidentiality.

Images