JP2009175892A - Protection method, information processor, program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protection method for securing a certain security level without spoiling convenience. <P>SOLUTION: Conditions whether or not the protection method is shifted to a protected state are stored in a condition file. The condition file and input information from the outside are referred to and it is determined whether or not the protection method is shifted to a protected state for protecting information to be displayed on a display unit. Display items stored in a storage unit and display information corresponding to each display item are read, and these items of the information are displayed on the display unit. If it is determined to shift to the protected state, a change database with change information for changing the display information for each display item stored therein is referred to and the display information of each display item is changed in accordance with the change information. Then, the display information of each display item after the change is displayed on the display unit. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a protection method for protecting information displayed on a display unit of an information processing device, an information processing device, a program for causing the information processing device to function, and a recording medium.

  In recent years, information processing devices such as notebook personal computers, PDAs (Personal Digital Assistants) or mobile phones are carried outside of the workplace and effectively used as support tools. The information processing apparatus stores customer information, work details, and the like. By reading and displaying the information as necessary, the information can be effectively used even outside the workplace.

Although such an information processing apparatus is convenient, information leakage due to theft or peeping by a third party becomes a problem. For example, in Patent Document 1, security is improved by starting a screen saver after a certain period of time and adopting a means that a third person cannot look into.
JP 2006-133595 A

  However, in the technique described in Patent Document 1, since the screen saver is activated, there is a problem in that all information cannot be browsed and convenience is poor.

  The present invention has been made in view of such circumstances. The purpose of the present invention is to perform determination control as to whether or not to shift to a protection state and control to change display information for each display item, thereby maintaining convenience without deteriorating convenience. It is to provide a protection method, an information processing apparatus, a program for causing the information processing apparatus to function, and a recording medium that can ensure the security level.

  A protection method according to the present invention is a protection method for protecting information displayed on a display unit of an information processing device, a condition file storing conditions for determining whether or not to enter a protection state, and an external input A determination step in which the processor of the information processing apparatus determines whether or not to shift to a protection state that protects information displayed on the display unit with reference to the information, a display item stored in the storage unit, and each display item A display step in which the processor reads out the corresponding display information and displays it on the display unit, and a change that stores change information for changing the display information for each display item when it is determined to shift to the protection state by the determination step. A change step in which the processor refers to the database and changes the display information of each display item according to the change information; and the processor Characterized in that it comprises a change display step of displaying the display information of each display item after being changed to the display unit.

  An information processing apparatus according to the present invention refers to a condition file storing conditions for determining whether or not to enter a protection state and information input from outside in the information processing apparatus to protect information displayed on the display unit. And determining means for determining whether or not to shift to a protection state for protecting information displayed on the display unit, reading display items stored in the storage unit and display information corresponding to each display item, and Display information for each display item by referring to a display database for displaying and a change database storing change information for changing the display information for each display item when the determination means determines to shift to the protection state. Changing means for changing according to the change information, and change display means for displaying the display information of each display item after being changed by the changing means on the display section.

  A program according to the present invention is a program for protecting information displayed on a display unit of an information processing device. The information processing device stores a condition file that stores conditions for determining whether or not to enter a protection state, and an external A judgment step for judging whether or not to shift to a protection state for protecting information displayed on the display unit, display items stored in the storage unit, and display information corresponding to each display item Each of the display step and the change database storing the change information for changing the display information for each display item. A change step of changing display information of the display item according to the change information, and a change of displaying the display information of each display item after the change by the change step on the display unit. Characterized in that to execute a display step.

  In the program according to the present invention, the change database stores different change timings when display information is changed for each display item, the change step is determined to shift to a protection state by the determination step, and The display item display information is changed according to the change information with reference to the change database when the change timing of the display item stored in the change database is reached with reference to the output from the clock unit. To do.

  In the program according to the present invention, the change database stores related information related to display items for each display item, the change step is determined to shift to a protected state by the determination step, and When it is determined that the change timing of the display item stored in the change database has been reached with reference to the output, the display information of the display item is changed based on the related information stored in the change database.

  In the program according to the present invention, the change database stores erasure information for erasing display information for each display item, the change step is determined to shift to a protected state by the determination step, and a clock unit The display item is displayed when it is determined that the change timing of the display item stored in the change database has been reached with reference to the output from the change database and the deletion information corresponding to the display item is stored in the change database It is characterized by erasing information.

  The program according to the present invention includes a reception step of receiving authentication information for display items and authentication after being displayed by the change display step, and the authentication information received by the reception step matches the authentication information stored in the storage unit An authentication step for determining whether or not to perform, and a reading step for reading display information corresponding to the display item received by the receiving step with reference to the change database when it is determined by the authentication step to match, And a redisplay step of redisplaying the display information read out in the reading step on the display unit.

  A recording medium according to the present invention is a recording medium readable by an information processing apparatus in which a program for protecting information displayed on a display unit of the information processing apparatus is recorded. A condition file that stores conditions for determining whether to shift, and a determination step that refers to input information from outside and determines whether to shift to a protection state that protects information displayed on the display unit; The display items stored in the storage unit and the display information corresponding to each display item are read and displayed on the display unit, and when it is determined to shift to the protection state by the determination step, the display information is changed for each display item. A change database that stores the change information for storing the change information to change the display information of each display item according to the change information, and the change step The display information of the display items after, characterized in that to execute a changing display step of displaying to the display unit.

  In the present invention, the condition file stores a condition as to whether or not to shift to the protection state. With reference to the condition file and externally input information, it is determined whether or not to shift to a protection state in which information displayed on the display unit is protected. Display items stored in the storage unit and display information corresponding to each display item are read out, and these pieces of information are displayed on the display unit. When it is determined to shift to the protection state, the display information of each display item is changed according to the change information with reference to the change database storing the change information for changing the display information for each display item. Then, the display information of each display item after the change is displayed on the display unit.

  In the present invention, the change database stores different change timings when changing the display information for each display item. When it is determined to shift to the protection state and the display item change timing stored in the change database is reached by referring to the output from the clock unit, the display information of the display item is referred to the change database according to the change information. change.

  In the present invention, the change database stores related information related to display items for each display item. When it is determined that the display item changes to the protection state, and it is determined that the display item change timing stored in the change database has been reached with reference to the output from the clock unit, the display item display information is stored in the change database. Change based on

  In the present invention, the change database stores erasure information for erasing display information for each display item. When it is determined to shift to the protection state, it is determined that the change timing of the display item stored in the change database has been reached with reference to the output from the clock unit, and deletion information corresponding to the display item is stored in the change database The display information of the display item is deleted.

  In this invention, after displaying the information after a change, the display item and the authentication information for authentication are received. Further, it is determined whether or not the received authentication information matches the authentication information stored in the storage unit. If it is determined that they match, the display information corresponding to the received display item is read with reference to the change database. The read display information is redisplayed on the display unit.

  In the present invention, when it is determined to shift to the protection state, the display information of each display item is changed according to the change information. Then, the display information of each display item after the change is displayed on the display unit. As a result, it is determined whether or not to shift to the protection state according to the input information from the outside. When the state shifts to the protection state, the display information is changed according to the change information for each display item. Therefore, the worker can obtain information necessary for work while maintaining the security level.

  In the present invention, when it is determined to shift to the protection state and the display item change timing is reached, the display item display information is changed according to the change information with reference to the change database. Thereby, the display information is changed according to the change timing for each display item. And display information can be changed early about a display item with higher importance of protection. On the other hand, although the importance of protection is low, display information before change can be provided for as long a time as possible for display items necessary for the work of the operator.

  In the present invention, when it is determined to shift to the protection state and it is determined that the display item change timing has been reached, the display information of the display item is changed based on the related information stored in the change database. Thereby, the display information of the predetermined display item is changed based on the related information after the change timing elapses. Therefore, since information based on some related information is displayed even in the protected state, the convenience of work is improved.

  In the present invention, when it is determined that the display item is to be shifted to the protection state, it is determined that the display item change timing has been reached, and the deletion information corresponding to the display item is stored, the display item display information is deleted. The As a result, the display information for a display item with a high protection level is quickly deleted after a predetermined time has elapsed.

  In the present invention, when the authentication for each display item is successful, the display information corresponding to the received display item is read with reference to the change database. The read display information is redisplayed on the display unit. Thereby, since necessary information is redisplayed for each display item, it is possible to improve the convenience of the worker who confirms the work. In addition, for other display items, since the changed information is continuously displayed, security can be maintained, and the present invention has an excellent effect.

Embodiment 1
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing an outline of the present embodiment. The information processing apparatus used in this embodiment is a notebook personal computer, a PDA, a mobile phone, or the like. In the following, an example using a notebook personal computer will be described. In the following, an information processing apparatus as a notebook personal computer will be read as the computer 1 and described. The worker who owns the computer 1 belongs to a company that exists at the point A. Bring the computer 1 to a customer who exists at the point C and make a business trip to repair machine tools, check various facilities, replace parts, and make arrangements.

  The computer 1 stores specific work contents, customer information, company information, and the like, and performs various operations while displaying these information on the display unit at the customer. It is also necessary to activate the computer 1 at the midpoint B from the point A to the point C to confirm the work content and customer information. For example, in a train heading to a customer, or a restaurant or other customer who stops on the way. In this case, unlike the inside of the worker's company at point A and the customer's building at point C, the display of information at point B may be peeped by a third party. The computer 1 shifts to a protected state at points other than the points A and C, and erases, changes, or leaves the information displayed on the display unit by the processing described below.

  FIG. 2 is a block diagram showing a hardware configuration of the computer 1. The computer 1 includes a CPU (Central Processing Unit) 11 as a control unit, a RAM (Random Access Memory) 12, an input unit 13, a display unit 14, a storage unit 15, a communication unit 16, a clock unit 18, and a GPS (Global Positioning System). The receiver 19 includes a camera 191, a microphone 192, and the like. The CPU 11 is connected to each hardware part of the computer 1 via the bus 17 and controls them, and executes various software functions according to a control program 15P stored in the storage part 15.

  The storage unit 15 is composed of, for example, a hard disk or the like, and in addition to the control program 15P described above, a condition file 153, a first change database (hereinafter abbreviated as DB) 151, a second change DB 152, a map DB 155, and a work file storage The part 154 and the like are stored. Details of these will be described later. The RAM 12 is composed of a semiconductor element, and writes and reads necessary information in accordance with instructions from the CPU 11. The display unit 14 is a liquid crystal display, for example, and displays predetermined information according to instructions from the CPU 11. The input unit 13 includes a keyboard and a mouse. Note that the input unit 13 may be stacked on the display unit 14 so that information can be input and displayed.

  The communication unit 16 is a wired or wireless LAN (Local Area Network) card or the like, and transmits / receives information to / from an external computer (not shown) using a protocol such as HTTP (Hyper Text Transfer Protocol). The clock unit 18 outputs the current date and time information to the CPU 11. The GPS receiver 19 receives radio waves from an artificial satellite (GPS satellite) and measures the current position (including latitude, longitude, and altitude) of the computer 1 and the current direction. In the present embodiment, the GPS receiver 19 is connected to a USB (Universal Serial Bus) slot (not shown), and outputs latitude and longitude information to the CPU 11 as needed.

  The camera 191 is constituted by a CCD (Charge Coupled Device) or the like and outputs the captured image data to the CPU 11. The camera 191 is attached to an outer frame surrounding the display unit 14 with its light receiving surface exposed from the outer frame of the display unit 14. The camera 191 takes in an operator who operates the computer 1 and its background image and outputs them to the CPU 11. The camera 191 may be a camera that can move its light receiving surface, or a camera that can be retrofitted to a USB slot or the like.

  The microphone 192 converts an audio signal input from the outside into an electric signal. The converted electrical signal is converted to digital data by an A / D converter (not shown) and output to the CPU 11. In this embodiment, a GPS receiver is used as the position information acquisition method. However, the present invention is not limited to this as long as the position information can be acquired. For example, information on a wireless LAN access point, and location information of a mobile phone base station when the information processing apparatus is a mobile phone may be acquired.

  FIG. 3 is an explanatory diagram showing a record layout of the condition file 153. The condition file 153 stores a condition for determining whether or not to shift to the protection state. In the present embodiment, whether or not to shift to the protection state is determined based on the latitude and longitude (position information). The condition file 153 includes an unprotected status field and a protected status field. In the unprotected state field, latitude and longitude in the vicinity of the point A of the company to which the worker belongs are stored. This may be information such as latitude and longitude belonging to the site of the company to which the worker belongs, or latitude and longitude belonging to a radius m from the latitude and longitude of the company to which the worker belongs.

  Similarly, the latitude and longitude in the vicinity of the point C where the customer is located are stored in the unprotected state field. Similarly, the latitude and longitude belonging to the work site of the customer company or the latitude and longitude belonging to the radius m of the customer company from the latitude and longitude of the customer company may be used. In the present embodiment, it is assumed that the latitude and longitude belonging to a radius of 50 m from the latitude and longitude that are the center of the company to which the worker belongs or the work destination company are stored in an unprotected state.

  The CPU 11 refers to the map DB 155 and displays a map on the display unit 14. Note that the map DB 155 stores map information for displaying each point in addition to the latitude and longitude information of each facility, similar to the map DB mounted in the car navigation system. The operator designates the company to which the worker belongs and the company of the work destination on the displayed map from the input unit 13. The CPU 11 extracts the latitude and longitude based on the designation information on the map input from the input unit 13, refers to the map DB 155, and uses the latitude and longitude within 50m from the designated latitude and longitude as the registered points. Is stored in the unprotected status field of the condition file 153 in association with information such as the company to which the user belongs or the work destination company.

  On the other hand, latitude and longitude information other than the latitude and longitude stored in the non-protected state field is stored in the protected state field. In the present embodiment, the protection state field is provided for explanation, but it is needless to say that only the non-protection state field may be provided. The CPU 11 monitors the latitude and longitude output from the GPS receiver 19, and when the latitude and longitude are determined to be other than the latitude and longitude stored in the unprotected state field stored in the condition file 153, the CPU 11 shifts to the protection state. To do.

  FIG. 4 is an explanatory diagram showing the record layout of the first change DB 151, and FIG. 5 is an explanatory diagram showing the record layout of the second change DB 152. In the present embodiment, the change DB is divided into two parts, a first change DB 151 and a second change DB 152, for ease of explanation. You may make it memorize | store. The first change DB 151 in FIG. 4 includes a display item field, a processing content field, and a change timing field. In the display item field, display items of work files displayed on the display unit 14 are stored. A specific example will be described.

  FIG. 6 is an explanatory view showing a display image of a work file. The CPU 11 reads out the work file stored in the work file storage unit 154 and displays it on the display unit 14. The work file is stored in the work file storage unit 154 for each work, and the worker designates the work file related to the target work from the input unit 13 and displays it on the display unit 14. Display information is listed on the display unit 14 in a form corresponding to the display items. For example, display information “work instruction” is displayed in the display item “document type”. This display item is stored in advance as a template, and an operator or the like inputs display information corresponding to the display item from the input unit 13 when receiving an order for work. The CPU 11 stores the input display information in the work file storage unit 154 in association with the display item.

  Display information “XX001”, which is a unique identification number for specifying each work, is displayed in the display item “management number”. Among the display items, “customer company name”, “customer address”, “customer map”, “customer department signature”, “customer contact person”, and “customer telephone number” are items corresponding to customer information. The display item “customer company name” is displayed with the display information “Co., Ltd. A”, and the display item “customer address” is displayed as the address of the customer as the work place with the display information “X prefecture X city X town XX address”. Is done. Further, a map corresponding to the customer address is displayed at a predetermined scale corresponding to the display item “customer map”. Specifically, the CPU 11 refers to the map DB 155 based on the address which is the display information of the display item “customer address”, and searches and displays a map near the customer address at a predetermined scale. In the example of FIG. 6, a map near the corporation A is displayed.

  The display item “Customer Department” displays the display information “Development Department” as the department name to which the customer at the work site belongs, and the display item “Customer Contact” displays the display information “Mr. Sato” as the name of the customer at the work place. In the display item “customer telephone number”, display information “XX-XXXX-XXXX” is displayed as the telephone number of the customer at the work destination. In the display item “work content”, display information “periodic inspection work” is displayed as a rough content to be worked. In addition to these work contents, work contents such as emergency repairs and new product descriptions are displayed.

  Further, in the display item “work details”, information such as display information “filter replacement of devices A and B” is displayed as more specific work content. In the display item “work date and time”, display information “2007/10/20/9: 20” is displayed as information on the date and time of work. In the display item “worker”, display information “Taro Fuji” is displayed as the name of the person in charge of the work. Finally, in the display item “worker contact”, display information “12-3456-6789” is displayed as the number of the worker's mobile phone or the like, or the telephone number of the company to which the worker belongs. The worker checks the information displayed on the display unit 14 before or during the work.

  Returning to FIG. 4, the first change DB 151 will be described. Each display item described above is stored in the display item field, and processing contents and change timing as change information are stored in association with the display items. In the processing content field, processing content is stored for each display item. There are three types of processing contents: leaving the display information unchanged, erasing the display information itself as a change process, and changing the display information based on related information described later. The operator selects the content of the process from the input unit 13 in advance from any one of neglected, deleted, or changed. The CPU 11 stores the input processing content in the first change DB 151 in association with the display item.

  Display items that are less necessary to be protected, such as document types and management numbers, are stored as processing contents. Those that need to be protected are stored as erased or modified to perform the modification process. For example, the customer company name and work details are stored as erasure. Similarly, the customer address is stored as changed. The CPU 11 neglects, deletes, or changes each display information corresponding to the processing content for each display item.

  In the change timing field, the change timing of the change to the deletion or related information is stored in units of seconds in association with the display item in which the processing content is stored as deletion or change. For example, since customer information needs to be protected at a high level, it is stored as 3 seconds or 5 seconds. For example, the change timing is stored as 3 seconds for the customer company name, and the change timing is stored as 5 seconds for the customer address. Note that the operator inputs appropriate values from the input unit 13 for these change timings. The CPU 11 stores the change timing corresponding to the display item input from the input unit 13 in the first change DB 151.

  In addition to the customer information, the work details which are display items are stored with a change timing of 10 seconds and a worker contact address change timing of 15 seconds. The CPU 11 refers to the date and time information output from the clock unit 18 and deletes the display information related to each display item or changes to related information when the change timing is reached after displaying the display information.

  The second change DB 152 includes a display item field and a related information field. A display item is stored in the display item field, and related information related to the display information is stored in the related information field in association with the display item as change information. For example, regarding the customer address, “nearest station” for the customer address is stored as related information. The CPU 11 performs display information change processing based on the related information. Based on the customer address in the work file stored in the work file storage unit 154, the CPU 11 refers to the map DB 155 and extracts information on the nearest station. The information on the nearest station after the change is displayed as the information after the change. With this level of relevance, the operator can grasp the approximate location while protecting customer information, so that both security and convenience can be achieved.

  Corresponding to the customer map, the extracted map of the nearest station is stored as related information. CPU11 changes the map of display information based on this related information "map of the nearest station". Specifically, the CPU 11 reads map data near the nearest station from the map DB 155, changes the map to the customer location, and displays the map data near the nearest station on the display unit 14. In the display item “customer staff”, “worker” is stored as related information. The CPU 11 displays the name of the worker in the same work file stored in the work file storage unit 154 as display information after change. For example, in the example of FIG. 6, the worker “Taro Fuji” is changed as a customer representative.

  The related information of the display item “customer telephone number” is stored as “worker contact”. Similarly to the display item “customer person in charge”, the CPU 11 displays the worker contact information in the same work file stored in the work file storage unit 154 as the display information after the change. For example, in the example of FIG. 6, the worker contact information “12-3456-6789” is changed as the customer telephone number. In this way, instead of the customer clerk and customer telephone number, by setting the relevant information as the worker and worker contact information, even if the computer 1 is lost, the worker is called. And can be easily collected. In addition, it is possible to prevent a situation in which a customer is called by the police first and the customer's credit is lost.

  Finally, the related information “telephone number of the worker's lost management department” is stored in association with the display item “worker contact”. In this case, the telephone number “12-3456-6700” of the lost management department to which the worker belongs is preliminarily stored in the second change DB 152 in advance. The CPU 11 changes the worker contact information to the telephone number of the worker's lost management department. As a result, when the finder makes a call with reference to this telephone number, the lost management department of the company to which the worker belongs can be directly contacted, and the lost computer 1 can be recovered earlier. Note that these examples of changes are merely examples, and the present invention is not limited to these as long as the display information can be changed to related information.

  FIG. 7 is an explanatory diagram showing a display image of a work file whose display information is partially changed. FIG. 8 is an explanatory diagram showing a display image of the work file after the display information is changed. The display information change transition will be described with reference to FIGS. 6 is a display image immediately after being displayed on the display unit 14, FIG. 7 is a display image after 7 seconds, and FIG. 8 is a display image after 20 seconds. The CPU 11 reads the corresponding work file from the work file storage unit 154 and displays it as shown in FIG. Display information corresponding to each display item is displayed as stored in the work file.

  The CPU 11 refers to the output of the clock unit 18 and the change timing field of the first change DB 151, and extracts the display items that have passed the change timing from the time when the display information is displayed on the display unit 14 and the corresponding processing contents. For example, when 7 seconds have passed as shown in FIG. 7, the display item “customer company name” and the processing content “delete”, the display item “customer address” and the processing content “change”, the display item “customer map” and the processing content “ “Change”, the display item “customer telephone number”, and the processing content “change” are extracted. The CPU 11 erases the display information corresponding to the display item whose processing content is erased. As shown in FIG. 7, the display information of the display items “customer company name” and “customer department signature” is deleted. In the figure, the erased portion is indicated by an asterisk “*” for easy understanding.

  The CPU 11 extracts the related information of the display item corresponding to the display item whose processing content is changed with reference to the second change DB 152. In this example, the display item “customer address” and related information “nearest station”, the display item “customer map” and related information “map of the nearest station”, and the display item “customer staff” and related information “worker”. To extract. As described above, the CPU 11 changes the display information based on the related information. As shown in FIG. 7, the customer address is changed from “X prefecture X city X town XX address” to the nearest station “XX station”, and the customer map is changed from the map based on the customer address to the map based on the nearest station. Further, the CPU 11 changes the customer person in charge “Mr. Sato” to “Taro Fuji” corresponding to the display item “worker” of the work file. Further, the CPU 11 changes the customer telephone number “XX-XXXX-XXXX” to “12-3456-6789” corresponding to the display item “worker contact” of the work file. Regarding the display items “work details” and “worker contact information”, the display information is not changed because the change timing has not yet passed.

  Assume that 20 seconds have passed. As shown in FIG. 8, the display items “work details” and “worker contact” are also deleted or changed. The CPU 11 refers to the output of the clock unit 18 and the change timing field of the first change DB 151, and extracts the display items that have passed the change timing from the time when the display information is displayed on the display unit 14 and the corresponding processing contents. When 20 seconds have elapsed as shown in FIG. 8, the display item “work details” and the processing content “erase”, and the display items “worker contact” and the processing content “change” are extracted. As shown in FIG. 8, the display information of the display item “work details” is deleted.

  The CPU 11 extracts the related information of the display item corresponding to the display item whose processing content is changed with reference to the second change DB 152. In the example of FIG. 8, the display item “worker contact information” and related information “worker lost management department telephone number” are extracted. As described above, the CPU 11 changes the display information based on the related information. Specifically, in this example, the “phone number of the worker's lost management department”, which is related information, is stored in the second change DB 152 in advance, and this is read out and the corresponding display item “worker” on the display unit is read out. Change "Contact" to "12-3456-6700".

  The procedure of change processing in the above hardware configuration will be described using a flowchart. 9 and 10 are flowcharts showing the procedure of the change process. In order to confirm the work, the worker starts up the computer 1 and inputs a work file name to be displayed from the input unit 13. The CPU 11 accepts the work file name input from the input unit 13 (step S91). The CPU 11 reads out a work file corresponding to the accepted work file name from the work file storage unit 154 (step S92). The CPU 11 displays the read work file on the display unit 14 (step S93). In accordance with this, the clock unit 18 outputs date and time information to the CPU 11 (step S94). The CPU 11 receives and monitors date information output from the clock unit 18.

  The CPU 11 acquires the current latitude and longitude output from the GPS receiver 19 (step S95). The CPU 11 refers to the condition file 153 to determine whether or not the current latitude and longitude belong to the protected latitude and longitude (step S96). If the CPU 11 determines that the current longitude and latitude do not belong to the protected latitude and longitude (NO in step S96), the CPU 11 determines that the current longitude and latitude belong to an area having no security problem, and ends the process. On the other hand, when the CPU 11 determines that the current longitude and latitude belong to the protected latitude and longitude (YES in step S96), the CPU 11 reads the processing content of each display item from the first change DB 151 (step S97).

  The CPU 11 determines whether the processing content of the read display item is left unattended (step S98). If the CPU 11 determines that the processing content is neglected (YES in step S98), the display information corresponding to the display item is continuously displayed on the display unit 14 (step S99), and the processing is terminated. If the CPU 11 determines that the processing content is not neglected (NO in step S98), the CPU 11 determines whether the processing content is erasure (step S101). If the CPU 11 determines that the processing content is erasure (YES in step S101), the CPU 11 refers to the date and time information output from the clock unit 18 and determines whether or not the change timing has elapsed since the display was started in step S93. Judgment is made (step S102).

  If the change timing has not elapsed since the start of display (NO in step S102), the CPU 11 waits until the change timing elapses. On the other hand, if the CPU 11 determines that the change timing has elapsed since the start of display (YES in step S102), the display information corresponding to the display item is erased (step S103). The display information corresponding to the display item on the display unit 14 is deleted (step S104).

  If it is determined in step S101 that the processing content is not erasure (NO in step S101), it is determined that the processing content is a change, and it is determined whether the change timing has elapsed since the display was started in step S93. (Step S105). If the change timing has not elapsed since the start of display (NO in step S105), the CPU 11 waits until the change timing elapses. On the other hand, if the CPU 11 determines that the change timing has elapsed since the start of display (YES in step S105), the CPU 11 performs change processing with reference to the second change DB 152 (step S106). The process of step S106 will be described later. The CPU 11 changes the display information to the display item after the change, and displays the changed information on the display unit 14 (step S107).

  11 and 12 are flowcharts showing a processing procedure in the change processing subroutine. The following processing shows details of each processing of Step S106 and Step S107. The CPU 11 reads related information corresponding to the display item from the second change DB 152 (step S111). The CPU 11 determines whether or not the read related information is a region (step S112). Although not described in the second change DB 152 shown in FIG. 5, attributes of the related information are stored in association with the related information. For example, the nearest station and the map of the nearest station are given regional attributes. In addition, attributes that directly correspond to other display items such as the worker and the contact information of the worker are assigned attributes as other display items. Further, the telephone number or the like of the worker's lost management department is given an attribute of acquiring information corresponding to the related information from the storage unit 15. The CPU 11 changes the display information corresponding to the display item by the following processing while referring to these attributes corresponding to the related information.

  When the CPU 11 determines that the attribute of the related information is a region (YES in step S112), the CPU 11 refers to the map DB 155 and searches for the nearest station based on the display information of the display item “customer address” (step S113). The CPU 11 further reads out a map near the nearest station from the map DB 155 (step S114). The CPU 11 changes the display information of the display item “customer address” to the nearest station searched in step S113 and displays it on the display unit 14 (step S115).

  CPU11 changes a customer map into the map read by step S114, and displays it on the display part 14 (step S116). If the CPU 11 determines that the attribute of the related information is not a region (NO in step S112), the CPU 11 determines whether the attribute of the related information is another display item (step S117). When the CPU 11 determines that the attribute of the related information is another display item (YES in step S117), the CPU 11 refers to the second change DB 152 and sets the other display item “worker” corresponding to the related information “worker”. Display information is read out (step S118).

  The CPU 11 changes the display information of the display item “customer person in charge” to the worker and displays it on the display unit 14 (step S119). Similarly, the CPU 11 refers to the second change DB 152 and reads the display information of the other display item “worker contact” corresponding to the related information “worker contact” (step S121). The CPU 11 changes the display information of the display item “customer telephone number” to the worker contact information and displays it on the display unit 14 (step S122).

  When the CPU 11 determines that the attribute of the related information is not another display item (NO in step S117), the CPU 11 determines that the attribute of acquiring information corresponding to the related information from the storage unit 15 is given to the related information. Then, the “information phone number of the worker's lost management department”, which is the related information stored in advance in the storage unit 15, is read (step S123). The CPU 11 changes the display information of the display item “worker contact” to the telephone number of the worker's lost management department that has been read, and displays it on the display unit 14 (step S124).

Embodiment 2
The second embodiment relates to a mode for determining whether or not to shift to a protected state by image processing. FIG. 13 is an explanatory diagram showing an image taken from the camera 191. FIG. The display unit 14 of the computer 1 includes a display module 141 including a liquid crystal panel, a front cabinet 142, and a back cabinet 143. The display module 141 is exposed from the opening of the front cabinet 142 having a rectangular opening, displays various information in accordance with control from the CPU 11, and displays an image captured from the camera 191. The display module 141 is disposed between the front cabinet 142 and the back cabinet 143.

  An opening for exposing the camera 191 is formed in a substantially central portion on the upper side of the front cabinet 142. The camera 191 is disposed between the front cabinet 142 and the back cabinet 143, and captures an image from an opening at a substantially central portion of the long side on the upper side of the front cabinet 142. The camera 191 captures an image in the same direction as the display direction of the image on the display unit 14. As shown in FIG. 13, in addition to the worker's image, a background image indicated by hatching is captured by the camera 191 and displayed on the display unit 14. In addition, although a work file is displayed on the display unit 14, in the present embodiment, an example in which a captured image is displayed on the display unit 14 is illustrated for explanation. In the present embodiment, the configuration in which the image capture direction of the camera 191 is the same as the display direction of the image on the display unit 14 is described. However, the present invention is not limited to this. It may be imported. In this case, the camera 191 exposes the lens of the camera 191 through a hole opened in the back cabinet 143 and captures an image on the side opposite to the display direction of the display unit 14.

  In the present embodiment, considering that the background area other than the image area of the operator changes, it is determined that the background area is different when the background image is different, such as when going out. In the present embodiment, for the sake of easy explanation, the area at the left corner of the background image indicated by diagonal lines is set as the determination target area. The longitudinal direction of the display unit 14 is the x axis, and the direction intersecting the x axis is the y axis. The upper left corner of the display module 141 is the origin coordinate (0, 0), the rightward direction from the origin coordinate is the x-axis positive direction, and the downward direction from the origin coordinate is the y-axis positive direction. In this case, the determination target area is an area surrounded by (0, 0), (X, 0), (X, Y), and (0, Y).

  The CPU 11 stores the brightness of each pixel of the determination target area captured from the camera 191 in the RAM 12 and determines whether or not the background image has changed. The worker first takes an image with the camera 191 on the desk of the company to which the worker belongs in order to register a basic background image. The captured basic image data of the determination target area is stored in the condition file 153. In this case, an image of a wall surface or the like existing behind the operator's desk is stored in the determination target area in the basic image data. After the work file is displayed on the display unit 14, the CPU 11 captures image data from the camera 191 and calculates the degree of correlation between the image data in the determination target area and the basic image data stored in the basic storage unit 15. Then, the CPU 11 compares the calculated degree of correlation with the threshold value stored in the condition file 153, and determines whether or not to shift to the protection state.

  For example, the correlation may be a difference between the average brightness of the captured image data in the determination target area and the average brightness of the basic image data, and if the difference is equal to or greater than a predetermined threshold, it may be determined that the protection state is to be entered. Alternatively, the correlation degree may be a correlation coefficient between the captured image data and the basic image data in the determination target region, and when the correlation coefficient is equal to or less than a predetermined threshold, it may be determined that the protection state is to be entered. Hereinafter, an example using a correlation coefficient will be described.

  The correlation coefficient using the sequence based on the brightness of the basic image data and the sequence based on the brightness of the captured image takes a value from −1 to +1. The closer the correlation coefficient is to +1, the more the correlation between the two sequences is in the same vector direction. Become stronger. Also, the closer the correlation coefficient is to 0, the weaker the correlation between the two sequences. Further, the closer the correlation coefficient is to -1, the stronger the correlation between the two sequences is in the direction of the inverse vector. The CPU 11 calculates a correlation coefficient. When the calculated correlation coefficient is equal to or less than a threshold value (for example, 0.3) stored in the condition file 153, the CPU 11 determines that the user has gone out and shifts to a protection state. Further, in order to enhance security, the number of face recognitions may be stored in the condition file 153, and the protection state may be shifted even when the number of recognized faces is two or more, for example. The face recognition program may be executed by a known method such as pattern matching by previously storing image data characterizing the face in the condition file 153.

  FIG. 14 is a flowchart showing a procedure for a transition process to a protection state by image processing. In order to confirm the work, the worker starts up the computer 1 and inputs a work file name to be displayed from the input unit 13. The CPU 11 accepts a work file name input from the input unit 13 (step S141). The CPU 11 reads the received work file from the work file storage unit 154 (step S142). The CPU 11 displays the read work file on the display unit 14 (step S143). In accordance with this, the clock unit 18 outputs date and time information to the CPU 11. The CPU 11 receives and monitors date information output from the clock unit 18.

  The CPU 11 reads the basic image data, threshold value, and number of faces of the determination target area stored in advance in the condition file 153, and activates a face recognition program (step S144). Further, the CPU 11 takes in the image data of the determination target area from the camera 191 (step S145). The CPU 11 calculates a correlation coefficient between the basic image data of the determination target area read out in step S144 and the image data of the determination target area acquired in step S145 (step S146). The CPU 11 determines whether or not the calculated correlation coefficient is equal to or less than the threshold value read in step S144 (step S147).

  If the CPU 11 determines that the correlation coefficient is equal to or less than the threshold value (YES in step S147), it determines that the worker is performing work other than his / her desk and shifts to the protection state (step S149). Since the processing after step S149 is the same as the processing after step S98 of the first embodiment, detailed description thereof will be omitted. If the CPU 11 determines that the correlation coefficient is not less than or equal to the threshold (NO in step S147), the CPU 11 determines whether or not the number of faces recognized by the face recognition program is 2 or more (step S148).

  If the CPU 11 determines that the number of recognized faces is 2 or more (YES in step S148), the CPU 11 determines that the possibility of peeping is high, and shifts to the protection state (step S149). On the other hand, if the CPU 11 determines that the number of recognized faces is not 2 or more (NO in step S148), the series of processing ends. The processing from step S145 to step S148 executes the captured image of the determination target area in units of frames. However, in order to prevent erroneous recognition, the correlation coefficient is equal to or less than a threshold and the CPU 11 continues for a predetermined time (for example, 5 seconds). Or when the CPU 11 determines that the number of faces is two or more and continues for a predetermined time.

  The second embodiment is configured as described above, and the other configurations and operations are the same as those of the first embodiment. Therefore, corresponding parts are denoted by the same reference numerals, and detailed description thereof is omitted.

Embodiment 3
The third embodiment relates to a mode for determining whether or not to shift to a protected state by voice recognition. In the third embodiment, audio data for a predetermined time taken from the microphone 192 in advance is converted into frequency domain data by FFT (Fast Fourier Transform) or the like and stored, and the frequency of the audio data taken from the microphone 192 is stored. When the degree of correlation with the data in the area is equal to or less than the threshold value, it is determined that the user is away from home, and the protection state is entered. In the present embodiment, a description will be given of a form in which frequency domain data obtained by FFTing audio data is used as audio information. However, time domain audio data captured from a microphone 192 may be used as audio information. In this case, audio data serving as a time domain reference is stored in the condition file 153 in advance and compared. First, the worker takes in the voice data from the microphone 192 on the desk in the company in order to acquire the basic voice data. The CPU 11 stores the audio data input from the microphone 192 for a predetermined time (for example, 10 seconds). In this case, voice data generated in the worker's company is stored.

  The CPU 11 converts to frequency domain data by FFT, and stores the basic frequency domain data after conversion in the condition file 153. Further, the CPU 11 stores a threshold value (for example, 0.3) input in advance from the input unit 13 in the condition file 153. In the present embodiment, the correlation is described as a correlation coefficient. After displaying the work file on the display unit 14, the CPU 11 takes in audio data from the microphone 192 and converts it into frequency domain data. The CPU 11 calculates a correlation coefficient, and shifts to the protection state when this is equal to or less than the threshold value.

  FIG. 15 is a flowchart showing the procedure of the transition process to the protection state by voice recognition. First, the operator performs initial registration of audio data. The CPU 11 takes in audio data from the microphone 192 (step S151) and stores it in the RAM 12. The CPU 11 converts the sound data into frequency domain data by FFT (step S152). The CPU 11 stores the converted frequency domain data as basic data in the condition file 153 (step S153).

  Thereafter, in order to confirm the work, the worker starts the computer 1 and inputs a work file name to be displayed from the input unit 13. The CPU 11 accepts a work file name input from the input unit 13 (step S154). The CPU 11 reads the received work file from the work file storage unit 154 (step S155). The CPU 11 displays the read work file on the display unit 14 (step S156). In accordance with this, the clock unit 18 outputs date and time information to the CPU 11. The CPU 11 receives and monitors date information output from the clock unit 18.

  The CPU 11 reads out basic frequency domain data and threshold values stored in advance in the condition file 153 (step S157). Further, the CPU 11 takes in audio data from the microphone 192 for a predetermined time (for example, 10 seconds) (step S158). For example, in a train, voice data having frequency characteristics different from those in a company can be obtained. The CPU 11 converts the captured audio data into frequency domain data by FFT (step S159). The CPU 11 calculates a correlation coefficient between the basic frequency domain data read in step S157 and the frequency domain data converted in step S159 (step S1510). The CPU 11 determines whether or not the calculated correlation coefficient is equal to or less than the threshold value read in step S157 (step S1511).

  If the CPU 11 determines that the correlation coefficient is equal to or less than the threshold value (YES in step S1511), the CPU 11 determines that the worker is working outside the company's desk, and shifts to the protection state (step S1512). Since the processing after step S1512 is the same as the processing after step S98 in the first embodiment, detailed description thereof will be omitted. If the CPU 11 determines that the correlation coefficient is not less than or equal to the threshold value (NO in step S1511), the series of processing ends. The determination as to whether or not to shift to the protection state is based on the determination based on the position information described in the first embodiment, the determination based on the image processing described in the second embodiment, or the determination based on the voice recognition described in the third embodiment. In addition to the transition to the protection state when any one of the above conditions is satisfied, these two or three may be combined, and the transition to the protection state may be performed only when these determinations are satisfied under the AND condition. .

  The third embodiment is configured as described above, and the other configurations and operations are the same as those of the first and second embodiments. Therefore, corresponding parts are denoted by the same reference numerals, and detailed description thereof is omitted. To do.

Embodiment 4
The fourth embodiment relates to a mode for shifting to an unprotected state when work is started at a customer site. When the worker starts work at the customer site, it is no longer necessary to continue the protection state, so the state shifts to the non-protection state. FIG. 16 is an explanatory diagram showing a display image of the work file after the display information according to the fourth embodiment is changed. The CPU 11 displays the work start button 81 read from the storage unit 15 on the display unit 14 together with the display information. When starting the work, the worker clicks the work start button 81 from the input unit 13. The CPU 11 accepts input of the work start button 81 and accepts input of ID and password.

  When the CPU 11 determines that the ID and password input by the operator from the input unit 13 match the ID and password stored in advance in the storage unit 15, the CPU 11 shifts to an unprotected state and transfers the corresponding work file to the work file storage unit 154. And displayed on the display unit 14 as shown in FIG. In the present embodiment, the description will be made assuming that the latitude and longitude in the vicinity of the customer are not stored in the unprotected status field of the condition file 153.

  FIG. 17 is a flowchart showing the procedure of the transition process to the unprotected state. The CPU 11 performs the following processing after the leaving, erasing, or changing processing in step S99, S104, or S107 described in the first embodiment. The CPU 11 further displays a work start button 81 as shown in FIG. 16 in the changed work file displayed as shown in FIG. 8 (step S171). When the worker inputs the work start button 81 as information accompanying work start from the input unit 13, the input is accepted (step S172). The CPU 11 reads the ID and password input screen stored in advance in the storage unit 15 and displays them on the display unit 14 (step S173). The CPU 11 accepts input of an ID and password input from the input unit 13 (step S174).

  The CPU 11 determines whether or not the ID and password input from the input unit 13 match the ID and password stored in advance in the storage unit 15 (step S175). The authentication is not limited to using an ID and a password, and biometric authentication such as a fingerprint may be performed. If the CPU 11 determines that the ID and password do not match (NO in step S175), the CPU 11 terminates the process as an unauthorized process. On the other hand, if the CPU 11 determines that the ID and password match (YES in step S175), the pre-change work corresponding to the post-change work file displayed in step S171 to shift from the protected state to the unprotected state. The file is read from the work file storage unit 154, and the work file before change is displayed as shown in FIG. 6 (step S176).

  In accordance with this, the CPU 11 refers to the date and time information output from the clock unit 18 and stores the current date and time information in the storage unit 15 as the work start date and time (step S177). Similarly to the work start button 81, the CPU 11 displays a work end button (not shown) accompanying the work end on the display unit 14. The worker performs work, and when the work is finished, the work end button is operated through the input unit 13. The CPU 11 determines whether or not the input of the work end button has been received from the input unit 13 (step S178).

  If the CPU 11 determines that the input of the work end button has not been received (NO in step S178), the CPU 11 waits until the input of the work end button is received. On the other hand, when the CPU 11 determines that the input of the work end button has been received (YES in step S178), the CPU 11 refers to the date / time information output from the clock unit 18 and stores the current date / time information as the work end date / time in the storage unit 15 ( Step S179). The CPU 11 associates the comment by the worker input from the input unit 13, the management number stored in the work file, the work start date and time stored in step S 177 and the work end date and time stored in step S 179 into the storage unit 15. Store (step S1710). Thereby, when the work is actually started, the protection state according to the present embodiment shifts to the non-protection state, so that the information before erasure or change is correctly displayed, and there is no possibility of reducing the work efficiency. Further, since the work start date and time and the work end date and time are managed using the input of the work start button 81 and the work end button as a trigger, a work report can be created in a series of processes. When the management number is input from the input unit 13, the CPU 11 displays a comment corresponding to the management number from the storage unit 15, the management number stored in the work file, the work start date and time, and the work end date and time as a work report. The data is displayed on the unit 14 or output to a printer (not shown).

  The fourth embodiment is configured as described above, and the other configurations and operations are the same as those of the first to third embodiments. Therefore, the corresponding parts are denoted by the same reference numerals and detailed description thereof is omitted. To do.

Embodiment 5
The fifth embodiment relates to a form in which display information is redisplayed for each display item through authentication after the change processing. FIG. 18 is a block diagram illustrating a hardware configuration of the computer 1 according to the fifth embodiment. In addition to the configuration of the first embodiment, a fingerprint input unit 193 is connected, and the storage unit 15 further stores a fingerprint storage unit 156. The CPU 11 receives the fingerprint information input from the fingerprint input unit 193, compares it with the worker's fingerprint information stored in advance in the fingerprint storage unit 156, and determines whether or not they match. In this embodiment, an example of performing authentication using a fingerprint will be described. However, in addition to face authentication and iris authentication via the camera 191, biometric authentication such as voice authentication using a microphone 192 and vein authentication is also possible. good. In addition to authentication using ID and password input from the input unit 13, authentication is performed by comparing handwritten characters or symbols input from the input unit 13 configured by a touch panel with previously stored characters or symbols. May be performed.

  FIG. 19 is an explanatory diagram showing a display image of the work file after the display information according to the fifth embodiment is changed. In addition to the configuration of the fourth embodiment, a link 82 is given to a predetermined display item. The CPU 11 refers to the processing content field of the first change DB 151 and extracts display items whose processing content is deleted or changed. The CPU 11 sets links 82, 82,... To the extracted display items, and displays an underline that visually indicates the link 82 in correspondence with the display items on the display unit 14. When an operator wishes to confirm display information related to a specific display item, the operator clicks a link 82 corresponding to the display item from the input unit 13.

  When the CPU 11 receives an input of the link 82 related to the display item from the input unit 13, the CPU 11 displays a screen for prompting the fingerprint input to display the display information corresponding to the link 82 related to the display item. FIG. 20 is an explanatory diagram showing an image of a screen for promoting fingerprint input. The CPU 11 assigns a display item name intended to be displayed to the fixed phrase stored in the storage unit 15 and displays it on the display unit 14. In this example, since the display of the link 82 corresponding to the display item “customer company name” is requested, the information “Display customer company name. Please enter fingerprint” is displayed as a pop-up window. The

  If the CPU 11 determines that the user is a valid worker after the authentication, the CPU 11 reads display information corresponding to the display item from the work file stored in the work file storage unit 154 based on the display item corresponding to the link 82. The CPU 11 changes the read display information to information that has been erased or changed, and displays it at a location corresponding to the display item on the display unit 14. In this example, the customer company name is deleted, but the stock company A (see FIG. 6) corresponding to the display item “customer company name” in the work file is displayed again. For example, when the display item “customer address” is changed to “XX station”, the display information “address X city X town XX address” related to the display item initially stored in the work file is read. Are displayed again on the display unit 14.

  FIG. 21 is a flowchart showing the procedure of the redisplay process. The CPU 11 performs the following processing after the leaving, erasing, or changing processing in step S99, S104, or S107 described in the first embodiment. The CPU 11 refers to the processing content field of the first change DB 151 and extracts display items in which deletion or change is stored (step S211). The CPU 11 sets a link 82 for the extracted display item (step S212). The CPU 11 describes an underline indicating that the link 82 is set in each display item. CPU11 judges whether the input of the link 82 which concerns on a display item was received from the input part 13 (step S213).

  If the CPU 11 determines that the input of the link 82 has not been accepted (NO in step S213), the CPU 11 waits until the input is accepted. On the other hand, when the CPU 11 determines that the input of the link 82 has been received from the input unit 13 (YES in step S213), the CPU 11 displays a screen for promoting the fingerprint input stored in the storage unit 15 on the display unit 14 (step S214). The CPU 11 accepts input of fingerprint information from the fingerprint input unit 193 (step S215). The CPU 11 determines whether or not the accepted fingerprint information matches the fingerprint information stored in advance in the storage unit 15 (step S216).

  If the CPU 11 determines that the fingerprint information does not match (NO in step S216), the CPU 11 determines that the access is unauthorized and ends the process. On the other hand, if the CPU 11 determines that the fingerprint information matches (YES in step S216), the CPU 11 reads display information corresponding to the display item related to the link 82 received in step S213 from the work file stored in the work file storage unit 154 (step S213). S217). The CPU 11 redisplays the display information on the display unit 14 in association with the display item (step S218). As a result, even in the case of transition to the protected state, it is possible to redisplay while maintaining security as necessary, and convenience can be improved. In addition, since the display information relating to other display items continues to be erased or changed, confidentiality can be maintained.

  The fifth embodiment has the above-described configuration, and the other configurations and operations are the same as those of the first to fourth embodiments. Therefore, the corresponding parts are denoted by the same reference numerals and detailed description thereof is omitted. To do.

Embodiment 6
The sixth embodiment relates to a process for deleting or changing the redisplayed display information again. FIG. 22 is a flowchart showing the procedure of the change process according to the sixth embodiment. After the redisplay process in step S218 of the fifth embodiment, the following process is performed. The CPU 11 reads the change timing of the redisplayed display item with reference to the first change DB 151 (step S221). Accordingly, the CPU 11 acquires date information output from the clock unit 18 (step S222). The CPU 11 determines whether or not the change timing read in step S221 has elapsed since the redisplay in step S218 (step S223).

  If the CPU 11 determines that the change timing has not elapsed since the redisplay (NO in step S223), the CPU 11 waits until the change timing elapses. On the other hand, when the CPU 11 determines that the change timing has passed (YES in step S223), the CPU 11 reads the processing content of the display item being redisplayed with reference to the first change DB 151 (step S224). The CPU 11 determines whether or not the read processing content is erasure (step S225). If the CPU 11 determines that it is an erasure (YES in step S225), it performs a process of erasing the display information corresponding to the display item redisplayed in step S218 (step S226).

  As a result, the display item shifts again to the protection state of FIG. On the other hand, if the CPU 11 determines that the processing content is not erasure (NO in step S225), the CPU 11 refers to the second change DB 152 as described in the first embodiment and changes the display information corresponding to the display item again based on the related information. Is performed (step S227). As a result, the display item shifts again to the protection state of FIG. Therefore, it is possible to shift to the protection state for each display item again when the change timing has passed while improving convenience.

  The sixth embodiment has the above-described configuration, and the other configurations and operations are the same as those of the first to fifth embodiments. Therefore, the corresponding parts are denoted by the same reference numerals and detailed description thereof is omitted. To do.

Embodiment 7
FIG. 23 is a block diagram showing a configuration of the computer 1 according to the seventh embodiment. A program for operating the computer 1 according to the seventh embodiment can be provided by a portable recording medium 1A such as a CD-ROM as in the seventh embodiment. Further, the computer program can be downloaded from a server computer (not shown) via a communication network (not shown) including the Internet or a mobile phone network. The contents will be described below.

  A program for causing a recording medium reading device (not shown) of the computer 1 shown in FIG. 23 to determine whether or not to shift to the protection state, to display the display information, to change the display information, and to display the changed display information. The recorded portable recording medium 1A is inserted, and this program is installed in the control program 15P of the storage unit 15. Alternatively, such a program may be downloaded from an external server computer (not shown) via the communication unit 16 and installed in the storage unit 15. Such a program is loaded into the RAM 12 and executed. Thereby, it functions as the computer 1 as described above.

  The seventh embodiment has the above-described configuration, and the other configurations and operations are the same as those of the first to sixth embodiments. Therefore, the corresponding parts are denoted by the same reference numerals and detailed description thereof is omitted. To do.

(Appendix 1)
In a protection method for protecting information displayed on a display unit of an information processing device,
Referring to a condition file storing conditions for determining whether or not to shift to a protection state and input information from the outside, whether or not to shift to a protection state that protects information displayed on the display unit A determining step for the processor of the device to determine;
A display step in which the processor reads display items stored in the storage unit and display information corresponding to each display item and displays the display information on the display unit;
When it is determined in the determination step that the state shifts to the protection state, the processor refers to the change database storing the change information for changing the display information for each display item, and the display information of each display item is determined according to the change information. Change steps to change,
A change display step of displaying display information of each display item after the processor is changed in the change step on the display unit.

(Appendix 2)
In an information processing apparatus to protect information displayed on a display unit,
Judgment to determine whether or not to shift to the protection state that protects the information displayed on the display unit with reference to the condition file that stores the condition whether or not to shift to the protection state and the input information from the outside Means,
Display means for reading display items stored in the storage unit and display information corresponding to each display item, and displaying the display items on the display unit;
A change in which the display information of each display item is changed in accordance with the change information with reference to the change database storing the change information for changing the display information for each display item when it is determined by the determination means to shift to the protection state. Means,
An information processing apparatus comprising: a change display unit configured to display display information of each display item after being changed by the change unit on the display unit.

(Appendix 3)
In a program for protecting information displayed on a display unit of an information processing device,
In the information processing device,
Judgment to determine whether or not to shift to the protection state that protects the information displayed on the display unit with reference to the condition file that stores the condition whether or not to shift to the protection state and the input information from the outside Steps,
A display step of reading display items stored in the storage unit and display information corresponding to each display item, and displaying on the display unit;
A change in which the display information of each display item is changed according to the change information with reference to the change database storing the change information for changing the display information for each display item when it is determined in the determination step to shift to the protection state. Steps,
A program for executing a change display step for displaying the display information of each display item after being changed in the change step on the display unit.

(Appendix 4)
The change database stores different change timings when changing display information for each display item,
The changing step includes
When it is determined that the transition to the protection state is made by the determination step, and the display item display information stored in the change database is reached with reference to the output from the clock unit, the display information of the display item is displayed in the change database. The program according to appendix 3, wherein the program is changed according to the change information with reference to FIG.

(Appendix 5)
The change database stores related information related to display items for each display item,
The changing step includes
When it is determined in the determination step that the state shifts to the protection state and it is determined that the display item change timing stored in the change database has been reached with reference to the output from the clock unit, the display item display information is changed to the change The program according to appendix 4, wherein the program is changed based on related information stored in a database.

(Appendix 6)
The change database stores erasure information for erasing display information for each display item,
The change step is determined to shift to the protection state by the determination step, determines that the display item change timing stored in the change database has been reached with reference to the output from the clock unit, and the display in the change database The program according to appendix 4 or 5, wherein when the erasure information corresponding to the item is stored, the display information of the display item is erased.

(Appendix 7)
A reception step of receiving authentication information for display items and authentication after displaying by the change display step;
An authentication step for determining whether the authentication information received in the receiving step matches the authentication information stored in the storage unit;
A reading step of reading display information corresponding to the display item received by the receiving step with reference to the change database when it is determined by the authentication step that they match;
The program according to claim 6, further comprising a redisplay step of redisplaying the display information read out in the reading step on the display unit.

(Appendix 8)
The changing step includes
When the display information corresponding to the display item is redisplayed in the redisplay step, and when it is determined that the change timing of the display item stored in the change database has been reached with reference to the output from the clock unit, the display item The display information is changed again according to the change information with reference to the change database.

(Appendix 9)
The condition file stores location information regarding the transition to the protection state,
The determination step includes
Obtaining the current location information from outside,
Referencing the position information acquired in this step and the position information stored in the condition file, and determining whether or not to shift to a protection state in which the information displayed on the display unit is protected. The program according to any one of appendices 3 to 8.

(Appendix 10)
The condition file stores image information related to the transition to the protection state,
The determination step includes
Acquiring image information from outside;
Comparing the image information acquired by the step with the image information stored in the condition file, and calculating a correlation;
The program according to any one of appendices 3 to 8, further comprising a step of shifting to a protection state based on the degree of correlation calculated in the step and the threshold value stored in the condition file.

(Appendix 11)
The condition file stores voice information related to the transition to the protection state,
The determination step includes
Obtaining audio information from outside;
Comparing the voice information acquired in the step with the voice information stored in the condition file, and calculating a correlation;
The program according to any one of appendices 3 to 8, further comprising a step of shifting to a protection state based on the degree of correlation calculated in the step and the threshold value stored in the condition file.

(Appendix 12)
The determination step includes
A step of accepting input of information accompanying work start from the outside;
The program according to any one of appendices 9 to 11, further comprising a step of transitioning from a protected state to an unprotected state when an input of information associated with the start of work is accepted.

(Appendix 13)
In a recording medium that can be read by the information processing apparatus in which a program for protecting information displayed on the display unit of the information processing apparatus is recorded,
In the information processing device,
Judgment to determine whether or not to shift to the protection state that protects the information displayed on the display unit with reference to the condition file that stores the condition whether or not to shift to the protection state and the input information from the outside Steps,
A display step of reading display items stored in the storage unit and display information corresponding to each display item, and displaying on the display unit;
A change in which the display information of each display item is changed according to the change information with reference to the change database storing the change information for changing the display information for each display item when it is determined in the determination step to shift to the protection state. Steps,
A recording medium that executes a change display step of displaying display information of each display item after being changed in the change step on the display unit.

It is a schematic diagram which shows the outline | summary of this Embodiment. It is a block diagram which shows the hardware constitutions of a computer. It is explanatory drawing which shows the record layout of a condition file. It is explanatory drawing which shows the record layout of 1st change DB. It is explanatory drawing which shows the record layout of 2nd change DB. It is explanatory drawing which shows the display image of a work file. It is explanatory drawing which shows the display image of the work file from which partial display information was changed. It is explanatory drawing which shows the display image of the work file after display information was changed. It is a flowchart which shows the procedure of a change process. It is a flowchart which shows the procedure of a change process. It is a flowchart which shows the process sequence in the subroutine of a change process. It is a flowchart which shows the process sequence in the subroutine of a change process. It is explanatory drawing which shows the image of the image taken in from the camera. It is a flowchart which shows the transfer processing procedure to the protection state by image processing. It is a flowchart which shows the transfer processing procedure to the protection state by voice recognition. It is explanatory drawing which shows the display image of the work file after the display information which concerns on Embodiment 4 is changed. It is a flowchart which shows the procedure of the transfer process to a non-protection state. FIG. 10 is a block diagram illustrating a hardware configuration of a computer according to a fifth embodiment. FIG. 16 is an explanatory diagram showing a display image of a work file after display information according to Embodiment 5 is changed. It is explanatory drawing which shows the image of the screen which accelerates | stimulates fingerprint input. It is a flowchart which shows the procedure of a redisplay process. 18 is a flowchart illustrating a procedure of change processing according to the sixth embodiment. FIG. 18 is a block diagram illustrating a configuration of a computer according to a seventh embodiment.

Explanation of symbols

1 Computer 1A Portable recording medium 11 CPU
13 Input unit 14 Display unit 15 Storage unit 15P Control program 16 Communication unit 18 Clock unit 19 GPS receiver 151 First change DB
152 2nd change DB
153 Condition file 154 Work file storage unit 155 Map DB
191 Camera 192 Microphone 193 Fingerprint input part

Claims (8)

In a protection method for protecting information displayed on a display unit of an information processing device,
Referring to a condition file storing conditions for determining whether or not to shift to a protection state and input information from the outside, whether or not to shift to a protection state that protects information displayed on the display unit A determining step for the processor of the device to determine;
A display step in which the processor reads display items stored in the storage unit and display information corresponding to each display item and displays the display information on the display unit;
When it is determined in the determination step that the state shifts to the protection state, the processor refers to the change database storing the change information for changing the display information for each display item, and the display information of each display item is determined according to the change information. Change steps to change,
A change display step of displaying display information of each display item after the processor is changed in the change step on the display unit. In an information processing apparatus to protect information displayed on a display unit,
Judgment to determine whether or not to shift to the protection state that protects the information displayed on the display unit with reference to the condition file that stores the condition whether or not to shift to the protection state and the input information from the outside Means,
Display means for reading display items stored in the storage unit and display information corresponding to each display item, and displaying the display items on the display unit;
A change in which the display information of each display item is changed in accordance with the change information with reference to the change database storing the change information for changing the display information for each display item when it is determined by the determination means to shift to the protection state. Means,
An information processing apparatus comprising: a change display unit configured to display display information of each display item after being changed by the change unit on the display unit. In a program for protecting information displayed on a display unit of an information processing device,
In the information processing device,
Judgment to determine whether or not to shift to the protection state that protects the information displayed on the display unit with reference to the condition file that stores the condition whether or not to shift to the protection state and the input information from the outside Steps,
A display step of reading display items stored in the storage unit and display information corresponding to each display item, and displaying on the display unit;
A change in which the display information of each display item is changed according to the change information with reference to the change database storing the change information for changing the display information for each display item when it is determined in the determination step to shift to the protection state. Steps,
A program for executing a change display step for displaying the display information of each display item after being changed in the change step on the display unit. The change database stores different change timings when changing display information for each display item,
The changing step includes
When it is determined that the transition to the protection state is made by the determination step, and the display item display information stored in the change database is reached with reference to the output from the clock unit, the display information of the display item is displayed in the change database. The program according to claim 3, wherein the program is changed according to the change information with reference to FIG. The change database stores related information related to display items for each display item,
The changing step includes
When it is determined in the determination step that the state shifts to the protection state and it is determined that the display item change timing stored in the change database has been reached with reference to the output from the clock unit, the display item display information is changed to the change The program according to claim 4, wherein the program is changed based on related information stored in a database. The change database stores erasure information for erasing display information for each display item,
The change step is determined to shift to the protection state by the determination step, determines that the display item change timing stored in the change database has been reached with reference to the output from the clock unit, and the display in the change database The program according to claim 4 or 5, wherein when the erasing information corresponding to the item is stored, the display information of the display item is erased. A reception step of receiving authentication information for display items and authentication after displaying by the change display step;
An authentication step for determining whether the authentication information received in the receiving step matches the authentication information stored in the storage unit;
A reading step of reading display information corresponding to the display item received by the receiving step with reference to the change database when it is determined by the authentication step that they match;
The program according to claim 6, further comprising a redisplay step of redisplaying the display information read out in the reading step on the display unit. In a recording medium that can be read by the information processing apparatus in which a program for protecting information displayed on the display unit of the information processing apparatus is recorded,
In the information processing device,
Judgment to determine whether or not to shift to the protection state that protects the information displayed on the display unit with reference to the condition file that stores the condition whether or not to shift to the protection state and the input information from the outside Steps,
A display step of reading display items stored in the storage unit and display information corresponding to each display item, and displaying on the display unit;
A change in which the display information of each display item is changed according to the change information with reference to the change database storing the change information for changing the display information for each display item when it is determined in the determination step to shift to the protection state. Steps,
A recording medium that executes a change display step of displaying display information of each display item after being changed in the change step on the display unit.

Images