CN106133744B - Control device - Google Patents

Control device Download PDF

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Publication number
CN106133744B
CN106133744B CN201480077498.XA CN201480077498A CN106133744B CN 106133744 B CN106133744 B CN 106133744B CN 201480077498 A CN201480077498 A CN 201480077498A CN 106133744 B CN106133744 B CN 106133744B
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China
Prior art keywords
external data
storage medium
exterior storage
data
control device
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CN106133744A (en
Inventor
川本直纪
菊地信夫
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)

Abstract

Control device (10) includes inside portion；And control processing unit (24), its program stored using inside portion or parameter and carry out operation, it is directed to the control processing of connected control object, in the control device (10), include password setting portion (17), if exterior storage medium is mounted to the control device (10), which sets password；External data storage zone configuration part (15) sets external data save area in inside portion, and the external data which stores exterior storage medium saves；External data saves processing unit (18), and the save location of external data and password are associated by external data storage to external data storage zone in password-external data corresponding informance；And external data removing portion (20), if external data is saved to external data storage zone, which removes the external data in exterior storage medium.

Description

Control device
Technical field
The present invention relates to a kind of control devices.
Background technique
In recent years, data are packed into the exterior storage mediums such as storage card and moved, connect and carry out with control equipment body The case where use, is increasing.Sometimes by the data in exterior storage medium copy to control equipment body inside portion and It carries out using or directly executing the data in exterior storage medium by control equipment.But whether any situation, About the management of the data in exterior storage medium, all it is easy to lack management awareness.Therefore, lasting to keep exterior storage medium The such situation of the state of insertion main body becomes more, therefore, to assure that the safety of the data in exterior storage medium.
Therefore, as the function protected when illegally extracting exterior storage medium to the data in exterior storage medium It can, it is known that following function, that is, if without access during certain after exterior storage medium is connected, by by external storage The storage medium in data conversion storage to equipment body in medium deletes the data in exterior storage medium, to protect data (referring for example to patent document 1).
In patent document 1, it is inserted into information processing unit in the storage card for storing cryptogam and file, existed In the case where cryptogam, whether information processing unit is to can save to built-in hard disk and judge.Moreover, during certain Not in the case where the access of storage card, information processing unit by storage card cryptogam and file copy to hard disk, Delete the file in addition to cryptogam of storage card.In addition, the consistent feelings of password in the password and storage card inputted Under condition, information processing unit restores deleted file to storage card, and deletes the file of hard disk.
Patent document 1: Japanese Unexamined Patent Publication 2011-43881 bulletin
Summary of the invention
But in the technology described in patent document 1, it needs to prepare cryptogam in advance in storage card.In addition, by In by password keeping in storage card, therefore in the case where storage card is illegally extracted, it is possible to password can be read out, base File write-back is leaked to the 3rd in the password.Also, due to being to insert in information processing unit in storage card and pass through one Unloading is carried out to data after fixing time, therefore there are the following problems, that is, if deposited during before carrying out unloading to data Card storage is illegally extracted, and data can also be revealed.
The present invention is exactly to propose in view of the foregoing, its object is to obtain a kind of control device, the control device Even if the 3rd will unlawfully move in the state for the storage medium that will be moved has occurred persistently being installed on control device In the case that dynamic storage medium is extracted, leaking data can be also prevented.
To achieve the goals above, control device according to the present invention includes inside portion；And control processing Portion, the program or parameter stored using the inside portion and carry out operation, be directed to connected control pair The control of elephant is handled, which is characterized in that, comprising: control information setting portion is mounted in exterior storage medium After the control device, which sets to from externally input control information；And external data is removed Portion, if the external data that the exterior storage medium is stored is saved to external data storage zone, the external data Removing portion removes the external data in the exterior storage medium, and external data removing portion is by the external data After removing, executes the initialization of the exterior storage medium or carry out write-in of the random data to the exterior storage medium.
The effect of invention
According to the present invention, if being mounted with exterior storage medium, password is set, it will be in exterior storage medium External data storage is corresponding in password-external data by the save location of password and external data to external data storage zone It is associated in information, removes the external data in exterior storage medium, therefore there are following effects, that is, is being installed on control dress External data is not present in the exterior storage medium for the state set, even if in the feelings for having extracted exterior storage medium from control device Under condition, data will not leak to the third party.
Detailed description of the invention
Fig. 1 is the block diagram for schematically showing an example of functional structure for control device involved in embodiment 1.
Fig. 2 is the figure for indicating one example of password-external data corresponding informance.
Fig. 3 is the block diagram for schematically showing an example of structure for control device involved in embodiment 1.
Fig. 4 is the processing indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 1 The flow chart of one example of step.
Fig. 5 is the processing indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 1 The figure (its 1) of the concrete example of step.
Fig. 6 is the processing indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 1 The figure (its 2) of the concrete example of step.
Fig. 7 is indicated involved in embodiment 1 along with the write-back processing of external data, outer from control device extraction The flow chart of one example of the extraction processing of portion's storage medium.
Fig. 8 be indicate involved in embodiment 1 along with it is being handled from the write-back of control device write-back external data, from Control device extracts the figure (its 1) of the concrete example of the extraction processing of exterior storage medium.
Fig. 9 be indicate involved in embodiment 1 along with it is being handled from the write-back of control device write-back external data, from Control device extracts the figure (its 2) of the concrete example of the extraction processing of exterior storage medium.
Figure 10 is the processing indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 2 The flow chart of one example of step.
The figure for the case where Figure 11 is the selection processing for indicating external data involved in embodiment 2.
Figure 12 is the block diagram for schematically showing the functional structure of control device involved in embodiment 3.
Figure 13 is the processing indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 3 The flow chart of one example of step.
Figure 14 is the processing indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 3 The figure (its 1) of the concrete example of step.
Figure 15 is the processing indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 3 The figure (its 2) of the concrete example of step.
Figure 16 is to be shown schematically in exterior storage medium that there are the dividing methods in the case where multiple external datas Figure.
Figure 17 is to indicate that the related write-back along with external data of embodiment 3 is handled, extract from control device The flow chart of one example of the extraction processing of exterior storage medium.
The stream of one example of the step of Figure 18 is the execution processing for indicating the data after segmentation involved in embodiment 3 Cheng Tu.
Figure 19 is the figure for indicating one example of password involved in embodiment 4-external data corresponding informance.
Figure 20 is to indicate that the related write-back along with external data of embodiment 4 is handled, extract from control device The flow chart of one example of the extraction processing of exterior storage medium.
Figure 21 is the figure (its 1) for schematically showing an example of the processing of write-back involved in embodiment 4.
Figure 22 is the figure (its 2) for schematically showing an example of the processing of write-back involved in embodiment 4.
Figure 23 is the block diagram for schematically showing the functional structure of control device involved in embodiment 5.
Figure 24 is the figure for indicating an example of set information.
Figure 25 is an example of movement processing step when indicating installation exterior storage medium involved in embodiment 5 Flow chart.
Figure 26 is the process for indicating an example for unloading processing step for exterior storage medium involved in embodiment 5 Figure.
The figure of the summary for the step of Figure 27 is the write-back processing for schematically showing data involved in embodiment 5.
Figure 28 is the corresponding letter of password-external data indicated in the case where being managed for each exterior storage medium The figure of one example of breath.
Figure 29 is to schematically show to connect with the exterior storage medium of multiple types, in the control device that is detached from The figure of the relationship of password-external data corresponding informance and set information.
Figure 30 is one example of password-external data corresponding informance indicated including the content comprising set information Figure.
Figure 31 is the block diagram for schematically showing the functional structure of control device involved in embodiment 6.
Figure 32 is the figure for indicating an example of structure for set information involved in embodiment 6.
The process of one example of the step of Figure 33 is the execution processing for indicating external data involved in embodiment 6 Figure.
Figure 34 is an example for schematically showing the state of execution processing of external data involved in embodiment 6 Figure (its 1).
Figure 35 is an example for schematically showing the state of execution processing of external data involved in embodiment 6 Figure (its 2).
One example of the step of Figure 36 is the write-back processing for schematically showing external data involved in embodiment 7 Figure (its 1).
One example of the step of Figure 37 is the write-back processing for schematically showing external data involved in embodiment 7 Figure (its 2).
Figure 38 is the processing indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 8 The flow chart of one example of step.
Figure 39 is the figure for schematically showing the case where handling involved in embodiment 8 external data.
Figure 40 is the block diagram for schematically showing the functional structure of control device involved in embodiment 9.
Figure 41 is one of the processing step in the case where indicating to be mounted with exterior storage medium involved in embodiment 9 The flow chart of example.
Figure 42 is the control dress schematically shown in the case where being mounted with exterior storage medium involved in embodiment 9 The figure for the processing status set.
Figure 43 is the block diagram for schematically showing the functional structure of control device involved in embodiment 10.
Figure 44 is the flow chart for indicating an example of processing step for control device involved in embodiment 10.
Figure 45 is figure the case where schematically showing the encryption of exterior storage medium involved in embodiment 10.
Specific embodiment
In the following, control device involved in embodiments of the present invention is described in detail referring to attached drawing.In addition, this Invention is not limited to these embodiments.
Embodiment 1
Fig. 1 is the block diagram for schematically showing an example of functional structure for control device involved in embodiment 1. Control device illustrated by the following embodiments and the accompanying drawings is to carry out operation using data, carry out based on its operation result to control object The device of control is programmable controller or numerical control device etc..
Control device 10 have exterior storage medium interface 11, input unit 12, display unit 13, external data storage unit 14, External data storage zone configuration part 15, external data determination unit 16, password setting portion 17, external data save processing unit 18, Password-external data corresponding information storage department 19, external data removing portion 20, password determination unit 21, external data write-back portion 22, internal data processing unit 23 and control processing unit 24.
Exterior storage medium interface 11 is connecing of being communicated between the exterior storage medium for being installed on control device 10 Mouthful.Exterior storage medium is the storage medium that can be dismounted, and can exemplify SD card, microSD card, CompactFlash etc. and deposit Card storage, USB (Universal Serial Bus) memory etc..It can store in exterior storage medium for by control device 10 are performed program or the parameter used in the execution of program etc..In addition, in the following, exterior storage medium is stored up Program or parameter for depositing etc. are known as external data.
Input unit 12 be user to control device 10 input information when interface, can exemplify keyboard, button or Touch panel etc..Aftermentioned password etc. is set to control device 10 via input unit 12.
Display unit 13 is to information relevant to control device 10 or relevant with the control as performed by control device 10 Information etc. is shown.Display unit 13 is made of liquid crystal display device etc..
External data storage unit 14 saves parameter used in the program as performed by control device 10 or program etc..Separately Outside, external data storage zone is set for each exterior storage medium installed in external data saving part 14.
If exterior storage medium is installed in control device 10, external data storage zone configuration part 15 is in external number The external data storage zone that can save external data is set according in storage unit 14.
External data determination unit 16 determines to whether preserving external data in exterior storage medium, outer not saving Without any processing in the case where portion's data, external data is saved to external data in the case where preserving external data Executing instruction for the preservation processing in portion 14 is sent to password setting portion 17 and external data preservation processing unit 18.
If password setting portion 17 receives to save external data to external data from external data determination unit 16 and save The instruction in portion 14 then carries out the setting processing of password.For example, it is aobvious to indicate user that the picture for carrying out the setting of password is shown in Show portion 13, user is saved via the password that input unit 12 inputs to password-external data corresponding informance.
If the setting of the password carried out by password setting portion 17 terminates, external data saves processing unit 18 and deposits outside External data in storage media copies to the external data storage zone as set by external data storage zone configuration part 15.Separately Outside, after external data is copied to external data storage zone, to copying as the external data of duplication target and outer Whether the external data as copy source in portion's storage medium is compareed, unanimously determine the two.It is different in the two In the case where cause, such as the external data in exterior storage medium is copied into external data storage zone again.In addition, two Under person's unanimous circumstances, the place of retention of external data is written to password-external data corresponding informance, and related to password Connection, by this case that the external data in the exterior storage medium of normal replication notice to external data removing portion 20.
Password-external data corresponding information storage department 19 stores password-external data corresponding informance, this is close Code-external data corresponding informance indicates the corresponding relationship between the external data saved of external data storage unit 14 and password. Fig. 2 is the figure for indicating one example of password-external data corresponding informance.Password-external data corresponding informance is to by password Password set by configuration part 17 and the external data that processing unit 18 is saved is saved by external data outside with being associated Data save area, such as initial address and size are associated and manage.
From external data save processing unit 18 receive expression by the external data in exterior storage medium normally Save to external data storage unit 14 notice in the case where, external data removing portion 20 remove exterior storage medium in outside Data.Removing for the external data, the preferably removing of not simple external data, but implement initialization or write-in Random data, even if in the case where being for example detached from exterior storage medium from control device 10 by the third party, it also can not be right Data in exterior storage medium are restored.
In the state that empty exterior storage medium is installed in control device 10, by user indicate external data from Preservation from external data storage unit 14 to exterior storage medium in the case where, password determination unit 21 shows password in display unit 13 Picture is inputted, whether is registered in password-external data corresponding informance to the password inputted by user via input unit 12 Password is determined.Sentence in password-external data corresponding informance specifically, whether there is to the password inputted It is fixed.It is outside without external data in the case where the password inputted is not present in password-external data corresponding informance The preservation of portion's storage medium is handled.In addition, being present in the situation in password-external data corresponding informance in the password inputted Under, it will can carry out preservation of the external data to exterior storage medium and handle this main idea to notify to external data write-back portion 22.
It is handled if receiving expression from password determination unit 21 and can carry out external data to the preservation of exterior storage medium Notice, then external data write-back portion 22 is from corresponding with the password inputted outer in password-external data corresponding informance The save location of portion's data obtains external data, carries out the processing that the external data is written back to exterior storage medium.In addition, outer Write back data portion 22 of portion is after copying to exterior storage medium for external data, to the external data and external data copied Whether the external data as copy source in storage unit 14 is compareed, unanimously determine the two.It is inconsistent in the two In the case where, such as the external data in external data storage unit 14 is copied into exterior storage medium again.In addition, in the two Under unanimous circumstances, by this case that the external data in the external data storage unit 14 of normal replication notice to internal data Processing unit 23.
Setting when internal data processing unit 23 is based on the external data write-back processing made by user and carry out for outer The processing of external data in portion's data saving part 14.For example, not setting the external data in external data storage unit 14 In the case where removing, though from external data write-back portion 22 by external data to after external storage media replication, also not from outer Portion's data saving part 14 remove corresponding with external data password but keep intact it is constant, in such as 13 pairs of display unit expressions The information that exterior storage medium can be unloaded is shown.In addition, in the external data being set in external data storage unit 14 Removing in the case where, from external data write-back portion 22 by external data to after external storage media replication, remove external number According in storage unit 14 external data and corresponding password, such as 13 pairs of display unit indicate can unload external storage be situated between The information of matter is shown.
It controls processing unit 24 and reads in the program that for example external data storage unit 14 is stored, carry out for control (not shown) The control of object is handled.
Fig. 3 is the block diagram for schematically showing an example of structure for control device involved in embodiment 1.It is above-mentioned Control device 10 is made of information processing unit, and the structure of the information processing unit is CPU (Central Processing Unit) 101, RAM (Random Access Memory) 102, hard disk or SSD (Solid State Drive) etc. are internal deposits Storage portion 103, the memory interface 104 as the interface between exterior storage medium 50 and operation panel 105 are via bus 106 connections.
Inside portion 103 includes external data storage zone 1031, stores and is executed by CPU 101 non-volatilely The external datas such as program or parameter；And password-external data corresponding informance 1032.RAM 102 is deposited as storage from inside It is that storage portion 103 is read, worked by the working storage of the program executed of CPU 101.In addition, inside portion 103 is stored Parameter be read to RAM 102.
External data storage unit 14 and password-external data corresponding information storage department 19 and Fig. 3 storage inside of Fig. 1 Portion 103 is corresponding.In addition, the RAM 102 and CPU of the control processing unit 24 of Fig. 1 and program or the Fig. 3 for being read into parameter 101 is corresponding.Also, the input unit 12 and display unit 13 of Fig. 1 are corresponding with the operation panel 105 of Fig. 3.In addition, other of Fig. 1 Processing unit is corresponding with function performed by the processing routine in the setting of such as inside portion 103 of Fig. 3.
In the following, being illustrated to the movement of the control device 10 of above structure.Fig. 4 is indicated to involved by embodiment 1 Control device be mounted with exterior storage medium in the case where processing step an example flow chart.
Firstly, if the exterior storage mediums such as storage card or USB storage are mounted or are connected to control device 10 (step S11), then the external data save area in 15 pairs of external data storage zone configuration part is set (step S12).
Then, external data determination unit 16 is determined (step S13) with the presence or absence of data in exterior storage medium.Make For judgement as a result, in exterior storage medium be not present data the case where (the case where step S13 is No) under, since there is no The data of unloading are wanted, therefore processing terminate.In addition, (step S13 is Yes's to the case where there are data in exterior storage medium Situation) under, password setting portion 17 carries out the password for data to be written back to exterior storage medium from external data storage unit 14 Setting processing (step S14).For example, be set to control device 10 display unit 13 show password setting picture, user via Input unit 12 inputs password, or password setting picture, user are shown at the engineering tools connecting with control device 10 Password is inputted via engineering tools.
If having input password by user, password setting portion 17 saves the password to the corresponding letter of password-external data It ceases (step S15).Then, external data saves processing unit 18 and copies to the data in exterior storage medium in external data guarantor Deposit the external data storage zone (step S16) of the setting of portion 14.Then, external data saves processing unit 18 to exterior storage medium In external data it is whether consistent with the external data in external data storage zone, whether inerrably saved and carried out pair According to (step S17).
At the inconsistent situation of 2 data the case where (step S17 be No), display unit 13 or with control device 10 Data exception (step S18) is shown at the engineering tools of connection, the processing returns to step S16.
In addition, external data saves 18 benefit of processing unit under 2 data unanimous circumstances (the case where step S17 is Yes) (step S19) is associated to the external data and set password that copy with password-external data corresponding informance.So Afterwards, external data removing portion 20 removes the external data (step S20) in exterior storage medium.It is connected to external storage as a result, Processing terminate for the unloading of external data in the case where medium.
Fig. 5 and Fig. 6 is indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 1 The figure of the concrete example of processing step.Firstly, exterior storage medium 50 is installed in the storage of control device 10 as shown in Fig. 5 (a) Device interface 104.Retain external data save area 1031 out in inside portion 103 as a result,.
Then, as shown in Fig. 5 (b), the setting processing of password is carried out.Herein, user inputs close from operation panel 105 Code, the password are saved to password-external data corresponding informance 1032.Then, the external data in exterior storage medium 50 301 are copied to external data storage zone 1031 as external data 351.
Then, as shown in Fig. 6 (a), the external data 301 and inside portion 103 in exterior storage medium 50 are carried out Control between external data 351, in the identical situation of the two, the save location of external data 351 is by associated with password Ground is saved to password-external data corresponding informance.Then, the external data 301 in exterior storage medium 50 is removed.
Then, as shown in Fig. 6 (b), even if exterior storage medium 50 is unlawfully extracted, also due to external data and password It is not stored in exterior storage medium 50, therefore these information leakages can be prevented.
In the following, to exterior storage medium from control device 10 unload and the write-back of external data processing be illustrated. Fig. 7 is to indicate that the related write-back along with external data of embodiment 1 is handled, extract external storage Jie from control device The flow chart of one example of the extraction processing of matter.
It is assumed herein that the state being connect in the exterior storage medium without data with control device 10.Firstly, with Family unloads exterior storage medium to issue orders via input unit 12 is indicated (step S31) to control device 10.As a result, for example Display unit 13 shows and unloads relevant display picture of issuing orders.Then, password (step is inputted via input unit 12 by user S32).21 pairs of passwords inputted of password determination unit it is whether consistent with the password that password-external data corresponding informance is saved into Row determines (step S33).
(step S33 is the inconsistent situation of password in the password inputted with password-external data corresponding informance The case where No) under, the inconsistent this case of password is shown in display unit 13 (step S34), return step S32.In addition, institute Under password unanimous circumstances (the case where step S33 is Yes) in the password of input and password-external data corresponding informance, outside Write back data portion of portion 22 be written back to the external data in external data storage zone corresponding with the password inputted The processing (step S35) of exterior storage medium.
In addition, external data write-back portion 22 is to the external data and external data storage unit 14 for being written back to exterior storage medium External data storage zone in external data compareed, whether (step S36) is unanimously determined to the two.In the two In inconsistent situation (the case where step S36 is No), be there is into this abnormal main idea in the data for being written back to exterior storage medium It is shown in display unit 13 (step S37), return step S35.
On the other hand, at the two unanimous circumstances the case where (step S36 be Yes), to whether removing and copy to control Data in the external data storage unit 14 of device 10 are determined (step S38).Data are written back to exterior storage medium, outside Portion's storage medium restores the state to connection, becomes the state that can be unloaded, at this point, internal data processing unit 23 will select picture Face is shown in display unit 13 or engineering tools, is determined based on user the input results of selection picture, wherein Whether the selection picture is used for removing the data in the external data storage unit 14 for copying to control device 10 and select.
The data in external data storage unit 14 to be removed the case where under (the case where step S38 is Yes), internal data Processing unit 23 removes the external data (step S39) in the external data storage zone of external data storage unit 14, to password- External data corresponding informance is updated (step S40).Specifically, removing opposite in password-external data corresponding informance The record answered.
Then or the unclear data except in external data saving part 14 the case where under (the case where step S38 is No), Internal data processing unit 23 is shown in display unit 13 (step S41), processing knot at this case that will unload exterior storage medium Beam.
In addition, if being the unclear data (step S38 is No) except in external data saving part 14 in step S38, then In the case where being mounted with the exterior storage medium of external data having the same, identical password is continued to use.In addition, pacifying In the case where having filled the exterior storage medium with external datas different from the external data that last time saves, new, for new External data set new password.Accordingly it is also possible to make such as external data determination unit 16 that there is following function, that is, When being mounted with exterior storage medium, whether external data saving part 14 is preserved and the external data phase in exterior storage medium Same external data is determined.
In addition, if in step S38 being the data (step S38 is Yes) removed in external data storage unit 14, In the case where the exterior storage medium for being mounted with external data having the same again, password is set again.
Fig. 8 and Fig. 9 is to indicate to handle involved in embodiment 1 along with from the write-back of control device write-back external data , from control device extract exterior storage medium extraction processing concrete example figure.Firstly, as shown in Fig. 8 (a), in sky Exterior storage medium 50 is installed in the state of control device 10, and issue exterior storage medium 50 unloads instruction.
Then, as shown in Fig. 8 (b), it is desirable that user inputs password.In this regard, user carries out password via operation panel 105 Input.Then, the control between the password that inputted password and password-external data corresponding informance is included is carried out.
Then, as shown in Fig. 9 (a), under password unanimous circumstances, the external data storage zone of inside portion 103 1031 external data 351 is copied to exterior storage medium 50 as external data 301.Then, to external holding area The external data 351 in domain 1031 and the external data 301 of exterior storage medium 50 are compareed.
Then, as shown in Fig. 9 (b), as control as a result, under the two unanimous circumstances, exterior storage medium 50 is extensive It is multiple to installed to control device 10 before state identical state, the i.e. state of Fig. 5 (a), unloaded by user.
In the embodiment 1, if being mounted with exterior storage medium, by the external number in write-back exterior storage medium According to when required password save the password to external data storage unit 14-external data corresponding informance, by exterior storage medium In external data save to external data storage zone, delete the external data in exterior storage medium.Even if as a result, from In the case that control device 10 has extracted exterior storage medium, also due to do not save external data in exterior storage medium, because This will not leak to this effect of the third party with data.In addition, due to also not saving password in exterior storage medium, This effect of the leakage of password can be prevented by also having.
Also, external data is only written back to external storage in the case where having input password associated with external data Medium.Have the protection that can be realized external data without the use of this effect of the encryption of external data as a result,.
Embodiment 2
In the embodiment 1, it saves by the external data in exterior storage medium to the feelings in external data storage unit It is premised on the idle capacity of external data saving part is bigger than the size of the external data in exterior storage medium under condition 's.In embodiment 2, to the idle capacity of external data saving part than the external data in exterior storage medium size more Small situation is illustrated.
The structure of the control device of embodiment 2 is the knot essentially identical with the control device shown in FIG. 1 of embodiment 1 Structure, but the external data determination unit 16 of the function in external data determination unit 16 and external data removing portion 20 and embodiment 1 and External data removing portion 20 is different.
External data determination unit 16 has following function, that is, the idle capacity of external data saving part 14 confirmed, In addition, confirming to the size of the external data in exterior storage medium, compare external data in total size of external data In the case that the idle capacity of storage unit 14 is bigger, external data selected by the user is saved to external data storage unit 14.Specifically, carrying out being divided into unloading external data and remaining the processing of external data, which is to be transferred to The external data of external data storage unit 14, the residual external data are to remain on the external data of exterior storage medium.At this point, External data determination unit 16 will select picture to be shown in display unit 13, which is used for in external 14 institute of data saving part The external data of preservation is selected.Alternatively, it is also possible to be saved in total size of selected external data than external data In the case that the idle capacity in portion 14 is bigger, it is indicated the notice or display that cannot be saved to external data storage unit 14. In addition, the case where unloading external data and residual external data are divided by user shown here, but can also be preparatory To external data be arranged precedence information, the idle capacity based on precedence information and external data storage unit 14 and to turn It deposits external data and residual external data is selected.
External data removing portion 20 also has following function, that is, the size in external data save area compares external data The smaller situation of total size under, due in addition to being designated as being transferred to the unloading external data of external data storage unit 14 It is unprotected, thus pointed out by display unit 13 exterior storage medium not unloaded by the third party in use it is aobvious Show.
In the following, being illustrated to the movement of control device 10 involved in embodiment 2.Figure 10 is indicated to embodiment Control device involved in 2 be mounted with exterior storage medium in the case where processing step an example flow chart.
Firstly, in the same manner as the step S11 to S13 of Fig. 4 of embodiment 1, if exterior storage medium is installed in control Device 10 processed, then external data storage zone configuration part 15 sets external data save area in inside portion, right (step S51 to S53) is determined with the presence or absence of external data in exterior storage medium.There is no numbers in exterior storage medium According to the case where the case where (step S53 be No) under, since there is no the data for wanting unloading, therefore processing terminate.
In addition, external data is sentenced under the case where there are data in exterior storage medium (the case where step S53 is Yes) Determine portion 16 to set external data storage zone whether be greater than or equal to exterior storage medium external data it is total big It is small to be determined (step S54).In external data save area situation (step S54 more smaller than total size of external data The case where for No) under, external data determination unit 16 carries out external data distribution setting processing (step S55).External data distribution Setting processing is, for example, this case that whole external datas will cannot be protected due to off-capacity to be shown in display unit 13, will be right The unloading external data for being transferred to external data storage unit 14 and the residual external data for remaining on exterior storage medium are divided The distribution picture matched is shown in display unit 13.User be based on can unloading data capacity, distributed outside unloading via input unit 12 Portion's data and residual external data, external data determination unit 16 distribute its result to setting as external data and store.In addition, Can also be after the external data distribute setting processing, external data determination unit 16 will be unprotected in addition to unloading external data This case is shown in display unit 13.
The figure for the case where Figure 11 is the selection processing for indicating external data involved in embodiment 2.Herein, such as Figure 11 (a) shown in, it is assumed that 4 external datas 301 to 304 are preserved in the exterior storage medium 50 when being installed on control device 10, Priority is lower according to the sequence of external data 301,302,303,304.
As shown in Figure 11 (b), it is assumed that inside portion 103 has using area 1031A and free area 1031B, in sky Whole external datas 301 to 304 cannot be saved in not busy region 1031B.
Thus, it is supposed that the high external data 301,302 of priority is appointed as internally 103 unloading of storage unit by user External data 303,304 is appointed as remaining on the residual external data of exterior storage medium 50 by unloading external data.It is tied Fruit, as shown in Figure 11 (b), external data 301,302 is stored in the free area 1031B of inside portion 103, such as Figure 11 (c) Shown, external data 303,304 remains on exterior storage medium 50.
Then external data save area is greater than or equal to the feelings of total size of external data or in step S54 Under condition the case where (step S54 be Yes), the setting (step S56) of password when password setting portion 17 carries out write back data will be close Code is saved to password-external data corresponding informance (step S57).Then, external data saves processing unit 18 and external storage is situated between Unloading external data in matter copies to external data storage zone (step S58).Then, it is right to save processing unit 18 for external data Unloading external data in exterior storage medium with whether the unloading external data of external data storage zone consistent is determined (step S59).Under the inconsistent situation of the two (the case where step S59 is No), data exception is shown in the (step of display unit 13 Rapid S60), return step S58.In addition, under the two unanimous circumstances (the case where step S59 is Yes), by unloading external data Save location and password saved in association to password-external data corresponding informance (step S61).
Then, internal data processing unit 23 only removes the unloading external data (step S62) in exterior storage medium.And And due to unprotected in addition to appointed unloading external data, internal data processing unit 23, which will point out, to be made The message that exterior storage medium is detached from is shown in display unit 13 (step S63) after, processing terminate.
Further, since being unloaded illustrated by processing and embodiment 1 along with the exterior storage medium that write back data is handled It is roughly the same to unload processing, therefore the description thereof will be omitted.
In embodiment 2, total size of the external data in exterior storage medium is than external data storage unit 14 Idle capacity it is bigger in the case where, external data selected by the user is saved to the external number of external data storage unit 14 According to storage zone, make data remanence in addition to this in exterior storage medium, display alarm pays attention to the management of exterior storage medium Message.Therefore, following effects can be realized on the basis of the effect of embodiment 1, that is, call user's attention external storage Medium persistently keeps being installed on this case that the state of control device 10.
Embodiment 3
In embodiment 3, the same as that of the second embodiment, external storage is compared to the idle capacity of external data saving part The smaller situation of the size of external data in medium is illustrated.
Figure 12 is the block diagram for schematically showing the functional structure of control device involved in embodiment 3.Control device 10 also have data cutting part 25 and data combining 26 on the basis of the structure of embodiment 1.
Compare external number in the total size for the external data being determined as in exterior storage medium by external data determination unit 16 According to the idle capacity of storage unit 14 it is bigger in the case where, external data is divided by data cutting part 25 in exterior storage medium It is multiple.As the segmentation of external data, become meaningless random point using data from the point of view of a data after being only just divided Cut or every 1 row the methods of segmentation.In addition, the segmentation for external data, so that one after the segmentation of each external data Part saves to the mode of the external data storage zone of external data storage unit 14 and calculates the size of segmentation.
In the case where the external data after the segmentation in external data storage unit 14 is written back to exterior storage medium or The external number that person is unfolded when executing the program as external data from control processing unit 24 to the RAM as working storage In the case that the state divided accordingly is present in external data storage unit 14 and exterior storage medium, data combining 26 respectively from Reading data after segmentation to working storage is combined and is unfolded by external data storage unit 14 and exterior storage medium. In addition, marking same label to embodiment 1,2 identical constituent elements, the description thereof will be omitted.
In the following, being illustrated to the movement of control device 10 involved in embodiment 3.Figure 13 is indicated to embodiment Control device involved in 3 be mounted with exterior storage medium in the case where processing step an example flow chart.
Firstly, in the same manner as the step S51 to S54 of Figure 10 of embodiment 2, if exterior storage medium is installed in control Device 10 processed, then external data storage zone configuration part 15 is set 14 pairs of external data saving part external data save areas It is fixed, determine whether there is external data in exterior storage medium.The case where data are not present in exterior storage medium Under, since there is no the data for wanting unloading, therefore processing terminate, external there are in the case where data in exterior storage medium Whether data judging portion 16 is greater than or equal to the external data of exterior storage medium to set external data storage zone Total size is determined (step S71 to S74).
Then, in external data save area situation more smaller than total size of the external data of exterior storage medium Under (the case where step S74 is No), idle capacity of the data cutting part 25 based on external data storage unit 14, by external data point Be segmented into external 14 unloading of data saving part unloading data and remain on the residual data (step S75) of exterior storage medium. In addition, at this point, this case that can also will cannot protect whole external datas due to off-capacity being shown in display unit 13.
Then external data save area is greater than or equal to the external data of exterior storage medium or in step S74 Total size the case where the case where (step S74 be Yes) under, password setting portion 17 is carried out for protecting data from external data Deposit the password setting processing (step S76) that portion 14 is written back to exterior storage medium.Then, if having input password by user, Password setting portion 17 saves the password to password-external data corresponding informance (step S77).Then, at external data preservation Reason portion 18, which will be split external data and save this case, is shown in display unit 13 (step S78).
Then, external data saves processing unit 18 and copies to the unloading data in exterior storage medium in external data guarantor Deposit the external data storage zone (step S79) set in portion 14.Then, external data saves processing unit 18 and is situated between to external storage Whether whether unloading data in matter are consistent with the unloading data in external data storage zone, inerrably saved and carry out It compares (step S80).
At the inconsistent situation of 2 data the case where (step S80 be No), display unit 13 or with control device 10 Data exception (step S81) is shown at the engineering tools of connection, the processing returns to step S79.
In addition, external data saves 18 benefit of processing unit under 2 data unanimous circumstances (the case where step S80 is Yes) The unloading data and set password that copy to external data storage unit 14 are carried out with password-external data corresponding informance It is associated with (step S82).Then, external data removing portion 20 only removes the unloading data in exterior storage medium, and makes to remain number It left behind (step S83) as former state accordingly.It is connected to the unloading processing of the external data in the case where exterior storage medium as a result, Terminate.
Figure 14 and Figure 15 is in the case where indicating to be mounted with exterior storage medium to control device involved in embodiment 3 Processing step concrete example figure.As shown in Figure 14 (a), if exterior storage medium 50 is mounted to control device 10, The total size for the external data 301 that exterior storage medium 50 is saved and the idle capacity of inside portion 103 are obtained, it is right The two is compared.
Then, total bigger than exterior storage medium 50 in the idle capacity of inside portion 103 as shown in Figure 14 (b) In small smaller situation, the external data 301 in exterior storage medium 50 is split.Herein, external data 301 is divided It is segmented into three parts of data 301A to 301C.It is without significance as its own to be divided into three parts of each data 301A to 301C Data.Then, the setting processing for carrying out password saves password to password-external data corresponding informance 1032.
Then, a part in data 301A to 301C as shown in Figure 15 (a), after the segmentation in exterior storage medium 50 Data 301B the external data storage zone 1031 of inside portion 103 is copied to as data 351B.Then, externally Data 301B in portion's storage medium 50 with whether the data 351B in inside portion 103 consistent is compareed, if unanimously, Then remove the data 301B in exterior storage medium 50.In addition, the save location of the data 301B copied is by related to password Connection ground is saved to password-external data corresponding informance.
Then, as shown in Figure 15 (b), in the case where exterior storage medium 50 is unlawfully extracted, it is situated between in external storage There is only data 301A, 301C in matter 50.Since data 301A, 301C are obtained after being split to external data 301 Data, and be the data missed out after a part of data 301B, therefore become nonsensical.Therefore, outside can be prevented The third party that external data 301 in storage medium 50 is unlawfully implemented to extract illegally utilizes.
In addition, be in Figure 14 and Figure 15 in exterior storage medium 50 containing 1 external data 301 the case where, but containing It is also same in the case where having multiple external datas.Figure 16 is to be shown schematically in exterior storage medium that there are multiple outer The figure of dividing method in the case where portion's data.
As shown in Figure 16 (a), inside portion 103 in external data storage unit 14 be in have using area 1031A and The state of free area 1031B, using area 1031A have stored data or program, and free area 1031B is not made With.
If being mounted with exterior storage medium 50, in the capacity and exterior storage medium 50 to free area 1031B Total size of external data 301 to 303 is compared.External data 301 to 303 in exterior storage medium 50 it is total In the case that capacity of the size than the free area 1031B of inside portion 103 is bigger, as shown in Figure 16 (b), divided by data Each external data 301 to 303 is divided into data 301A to 301C, 302A to 302C, 303A to 303C by portion 25.Herein, show The case where 1 external data is divided into 3 data out.In addition, though it is not shown herein, but hypothesis external data 301A, 301C, 302A, 302C, 303A, 303C are residual datas, it is assumed that external data 301B, 302B, 303B are unloading data.
Then, as shown in Figure 16 (c), only unloading data 301B, 302B, 303B are copied in the data that obtain after segmentation The external data storage zone of inside portion 103, i.e. free area 1031B, residual data 301A, 301C, 302A, 302C, 303A, 303C are remained on exterior storage medium 50 as former state.At this point, unloading data 301B, 302B, 303B for being obtained after segmentation Total size is less than or equal to the capacity of free area 1031B.Then, if unloading data 301B, 302B, 303B for copying It is consistent with unloading data 301B, 302B, 303B in exterior storage medium 50, then unloading data are deleted from exterior storage medium 50 301B、302B、303B。
In the following, to exterior storage medium from control device 10 unload and the write-back of external data processing be illustrated. Figure 17 is to indicate that the related write-back along with external data of embodiment 3 is handled, extract external storage from control device The flow chart of one example of the extraction processing of medium.
Firstly, being unloaded in the same manner as the step S31 to S34 of Fig. 7 of embodiment 1 if performing exterior storage medium Whether order, then input password, consistent with the password in password-external data corresponding informance to the password inputted to sentence Fixed (step S91 to S94).
(step S93 is Yes to password unanimous circumstances in password and password-the external data corresponding informance inputted The case where) under, data combining 26 is read in from the external data storage zone associated with password of external data storage unit 14 Unloading data, in addition, corresponding residual data is read in from exterior storage medium 50, by above-mentioned unloading data and residual data knot It closes and external data is restored into (step S95).In addition, the external data after recovery is written back to 50 (step of exterior storage medium S96).Then, to external data generated with whether the external data for being written back to exterior storage medium 50 consistent compares (step S97).Under the inconsistent situation of the two (the case where step S97 is No), the outside of exterior storage medium will be written back to Display unit 13 (step S98), return step S96 is shown in and there is this abnormal main idea in data.
On the other hand, at the two unanimous circumstances the case where (step S97 be Yes), to whether removing and copy to control Unloading data in the external data storage unit 14 of device 10 are determined (step S99).In above processing, external data It is written back to exterior storage medium 50, exterior storage medium 50 becomes the state that can be unloaded.At this point, internal data processing unit 23 Selection picture is shown in display unit 13 or engineering tools, is determined based on input results of the user to this, wherein Whether the selection picture is used for removing the unloading data in the external data storage unit 14 for copying to control device 10 and select It selects.
It is internal the unloading data in external data storage unit 14 to be removed the case where under (the case where step S99 is Yes) Data processing division 23 removes the unloading data (step S100) in the external data storage zone of external data storage unit 14, removes Corresponding record in password-external data corresponding informance, is updated (step S101).
Then (step S99 is the feelings of No or the unclear unloading data except in external data saving part 14 the case where Condition) under, internal data processing unit 23 is shown in display unit 13 (step S102) at this case that will unload exterior storage medium, Processing terminate.
The stream of one example of the step of Figure 18 is the execution processing for indicating the data after segmentation involved in embodiment 3 Cheng Tu.Firstly, if the execution order (step of the data such as program or parameter for being instructed in external data storage unit 14 S111), then the confirmation of processing unit 24, which is controlled, as the program of data corresponding with indicated order whether has been divided (step S112).In as the not divided situation (the case where step S112 is No) of the program of data, processing unit 24 is controlled by conduct The program of data is read to the working storage (step S113) as main memory.Then, read data (step is executed S117), processing terminate.
On the other hand, under as the program of data divided situation (the case where step S112 is Yes), data knot Residual data corresponding with indicated order is read from exterior storage medium 50 to the work as main memory in conjunction portion 26 Make memory (step S114), in addition, unloading data corresponding with indicated order are read from external data storage unit 14 It takes to the working storage (step S115) as main memory.Then, data combining 26 by read residual data and Unloading data restore (step S116) in conjunction with and by external data.Then, control processing unit 24, which executes, restores to as primary storage The external data (step S117) of the working storage of device, processing terminate.
In embodiment 3, protected cannot all save the external data in exterior storage medium 50 to external data In the case where depositing portion 14, whole external datas are split, from each external data using a part segmentation data as turn Deposit data and save to the external data storage zone of external data storage unit 14, using the data in addition to unloading data as residual Residual according to and remain in exterior storage medium 50.Even if as a result, in the case where having extracted exterior storage medium 50, also due to In exterior storage medium 50 do not contain complete data, therefore have can prevent this effect of the leakage of data.
Embodiment 4
In the case where illustrating that the external data saved to external data save area is updated in embodiment 4 Processing.
Control device 10 involved in embodiment 4 has roughly the same with the control device shown in FIG. 1 of embodiment 1 Structure, but external data saves the function and reality of processing unit 18, external data write-back portion 22 and internal data processing unit 23 The external data for applying mode 1 saves the function difference of processing unit 18, external data write-back portion 22 and internal data processing unit 23. External data, which saves processing unit 18, has following function, that is, is being updated via input unit 12 to external data by user In the case where, updated external data is updated to external data and is saved to external data storage zone, external number will be updated According to storage location and the password of original external data stored in association to password-external data corresponding informance.
Figure 19 is the figure for indicating one example of password involved in embodiment 4-external data corresponding informance.Such as this Shown in figure, password-external data corresponding informance includes the information such as the data name identified to external data；External data Initial address and size；The password set for external data；The update data name that update external data is identified The information such as title；And update the initial address and size of external data.Update update data name and the starting point of external data Location and size by can store it is multiple from the original derivative update external data of external data in a manner of and be associated.Separately Outside, the quantity for updating external data associated with the combination of data name and password is unrestricted.
If external data is updated, external data saves processing unit 18 and chases after the address for updating external data and size Remember to password-external data corresponding informance record corresponding with external data or password.Password-external data is corresponding The update of information is also possible to issue by user to update external number either in the timing progress that external data is updated It is carried out according to the timing for the instruction registered, can also be and carried out in other timings.
Write-back processing setting screen is shown in by external data write-back portion 22 when by write back data to exterior storage medium Display unit 13 carries out the write-back processing of external data based on its content, wherein write-back processing setting screen, which is used to set, is To the external data in external data save area and update which person in external data carries out write-back.That is, external data write-back Portion 22 based on write-back processing setting screen at setting content, execute only by the processing of original external data write-back, only will more The processing of new external data write-back or by original external data and update the processing of external data both sides write-back.
Internal data processing unit 23 will be removed processing setting screen and shown after by write back data to exterior storage medium 50 In display unit 13, the external data or update the clear of external data that external data storage zone is saved are carried out based on its content Except processing, wherein removing processing setting screen is for saving the external data storage zone of external data saving part 14 External data and update external data removing whether set.Namely based in the setting removed at processing setting screen Hold, execute external data and update external data removing processing or it is unclear except external data and update external data and it is former The processing that sample retains.
Figure 20 is to indicate that the related write-back along with external data of embodiment 4 is handled, extract from control device The flow chart of one example of the extraction processing of exterior storage medium.Firstly, the step S31 to S34 with Fig. 7 of embodiment 1 Similarly, issue orders if performing unloading for exterior storage medium 50, input password, to the password inputted whether with it is close Password in code-external data corresponding informance is unanimously determined (step S131 to S134).
(step S133 is password unanimous circumstances in password and password-the external data corresponding informance inputted The case where Yes) under, the data in the external data saving part 14 in 22 pairs of external data write-back portion update resume and check.That is, right Password-external data corresponding informance carries out referring to and determines whether deposit in external data corresponding with the password inputted Updating external data (step S135).
There is the case where updating external data (the case where step S135 is Yes) in external data corresponding with password Under, carry out from external data and update the write-back selection processing (step S136) of selection write-back object among external data. Write-back selection processing is the corresponding outside of the password that is obtained with inputted based on password-external data corresponding informance Write-back processing setting screen is shown in display unit 13 by data and update external data.User handles setting screen in the write-back The selection of write-back is carried out, this is selected content to store as write-back specify information by external data write-back portion 22. As write-back, only selects external data, only selects more new data or selection external data and external more new data double Side.
Then there is no (step S135 the case where updating external data or in external data corresponding with password The case where for No) under, external data write-back portion 22 is by the external data in external data storage unit 14 or updates external data It is written back to exterior storage medium 50 (step S137).Herein, there is no external data is updated, only by external number It will be based on the write-back specify information stored in step S136 in the case where there is update external data according to write-back Data, i.e. external data and at least one party updated in external data carry out write-back.
Then, in the same manner as the step S36 to S41 of Fig. 7 of embodiment 1, to the number for being written back to exterior storage medium 50 It is compareed according to whether the original data with external data storage zone are consistent, under unanimous circumstances, according to from user Instruction, remove/or unclear external data except in external data saving part 14 and update external data, if become able to Exterior storage medium 50 is unloaded, then the main idea is shown in display unit 13, processing terminate (step S138 to S143).
Figure 21 and Figure 22 is the figure for schematically showing an example of the processing of write-back involved in embodiment 4.Firstly, As shown in Figure 21 (a), in the state of being mounted with empty exterior storage medium, held if user indicates from operation panel 105 Unloading for row exterior storage medium 50 is issued orders, then requires input password, and user carries out the input of password via operation panel 105. Corresponding with password record is confirmed from password-external data corresponding informance, in the case where there is update external data into Row carries out specified processing to write-back.User via operation panel 105 be appointed as example will update external data write-back and Not by original external data write-back.
Then, as shown in Figure 21 (b), exterior storage medium is copied to based on the specified external data that will update of write-back 50.If copying to the update external data of exterior storage medium 50 and the update external data of external data storage zone 1031 Unanimously, then as shown in figure 22, it informs the user exterior storage medium 50 and is in the state that can unload, by user from control device 10 unload exterior storage medium 50.
In addition, place when for being handled along with data conversion storage in embodiment 4, connection exterior storage medium 50 Reason, as identical as processing illustrated by embodiment 1, the description thereof will be omitted.
In embodiment 4, in the case where the external data that external data saving part 14 is saved is updated, The update external data is saved in association with the password to external data setting, in the case where carrying out write-back processing to return Write which data is selected.There are following effects as a result, that is, can be selected that exterior storage medium will be written back to by user The object of 50 processing is set as original external data, update external data or both sides.
Embodiment 5
In embodiment 1 to 4, does not limit particularly and be installed between the exterior storage medium of control device and password Relationship.For example, making external data be transferred to external data storage unit some exterior storage medium is installed on control device Afterwards, it even if the exterior storage medium is detached from, other exterior storage mediums are installed on control device, is also able to carry out at write-back Reason.In embodiment 5, illustrate can type to the exterior storage medium that can carry out write-back processing or individual specify The case where.
Figure 23 is the block diagram for schematically showing the functional structure of control device involved in embodiment 5.Control device 10 also have exterior storage medium information acquiring section 27,28 and of set information processing unit on the basis of the structure of embodiment 1 Set information storage unit 29.In addition, illustrating the connected slot as the exterior storage medium 50 of control device 10 below and setting The case where setting this 3 kinds of SD card, USB storage, CompactFlash.
Exterior storage medium 50, exterior storage medium information acquiring section 27 are mounted in control device 10 if detected Obtain relevant to exterior storage medium 50 intrinsic information, i.e. classification information.Category information is stored in exterior storage medium The specific region set in 50 can be obtained and reading in the information in the specific region.
Set information setting screen is shown in display unit 13 by set information processing unit 28, will be input to set information setting The content of picture is stored as set information to set information storage unit 29, wherein the set information setting screen is used for needle Type to the exterior storage medium 50 for being installed on control device 10, and to the write-back mesh comprising the presence or absence of data protection, data Target is specified, the set information in write back data target information, inside portion including data dump etc. is set.Setting letter The storage of storage unit 29 is ceased by the set information generated of set information processing unit 28.
Figure 24 is the figure for indicating an example of set information.In this example, set information includes exterior storage medium Whether executed after classification information, data protection function, the specified of write back data target, the processing of write back data target information, write-back External data storage unit 14 is the removing of the external data in inside portion.
The classification information of exterior storage medium shows the classes such as SD card, microSD card, CompactFlash, USB storage Not.Whether data protection function indicates in the case where exterior storage medium 50 is installed on control device 10 by exterior storage medium 50 data conversion storages saved are to external data storage unit 14.
The write-back of data when specifying for handling write-back of write back data target could specify.There are numbers According to write-back target it is specified in the case where, do not deposited to the outside except the classification as specified by next write back data target information 50 write-back of exterior storage medium other than storage media 50.In addition, there is no write back data target it is specified in the case where, no matter For the exterior storage medium 50 of which classification, progress write-back processing.
Write back data target information sets the classification of following exterior storage medium 50, that is, is able to carry out and is directed to The exterior storage medium 50 of the write-back for the external data that external data storage unit 14 is stored.Data dump is used in inside portion In to being to remove the external data that is saved of external data storage unit 14 i.e. inside portion or with original sample after write-back is handled Residual is specified.
In addition, in exterior storage medium 50 save indicate write-back processing whether licensed-in License Info.The license Information is to be written based on the content set by set information processing unit 28 to exterior storage medium 50.In addition, to reality It applies the identical constituent element of mode 1 and marks same label, the description thereof will be omitted.
In the example of Figure 24, it is registered in set information various for SD card, USB storage, CompactFlash The record of class.Following situations is shown, that is, SD card, USB storage and CompactFlash have respectively been set data protection function Can, write back data target is specified and inside portion in data dump only had granted same as write back data target information Kind exterior storage medium.
In the following, being illustrated to the movement in the control device 10 of above structure.Figure 25 is indicated involved by embodiment 5 Installation exterior storage medium when movement processing step an example flow chart.Firstly, if exterior storage medium 50 It is installed in control device 10 (step S151), then exterior storage medium information acquiring section 27 obtains class from exterior storage medium 50 Other information (step S152).Then, exterior storage medium information acquiring section 27 is to note corresponding with acquired classification information Record whether there is is determined (step S153) in set information.
The case where record corresponding with classification information is not present under (the case where step S153 is No), at set information Reason portion 28 carries out set information setting processing (step S154).Such as it by the way that setting screen is shown in display unit 13, will input Content to setting screen is saved as 1 of set information record with classification information in association, to be set Determine information setting processing, wherein the setting screen is used for the finger for whether needing data protection, whether carrying out write back data target Calmly, external data remained in control device 10 etc. whether is removed after by write back data to exterior storage medium 50 to set It is fixed.Then, set information processing unit 28 will be specified related to write back data target in the information as set by setting processing Write-back License Info save to exterior storage medium 50 (step S155).
In addition, if being that classification information is present in set information (step S153 is Yes) in step S153, to setting Determine whether to be set with data protection function in the record corresponding with classification information in information and is determined (step S156).? Under the case where not setting data protection function (the case where step S156 is No), without the external number in exterior storage medium 50 It is handled according to the unloading of control device 10, processing terminate.
The case where being set with data protection function under (the case where step S156 is Yes), external data storage zone is set Determine portion 15 and (step S157) is set to external data save area in external data saving part 14.Then, external data Determination unit 16 is determined (step S158) with the presence or absence of external data in exterior storage medium 50.In exterior storage medium Under the case where external data is not present in 50 (the case where step S158 is No), processing terminate.
In addition, the case where 50 memory of exterior storage medium is in external data under (the case where step S158 is Yes), password Password when configuration part 17 is to write back data is set (step S159).Password setting portion 17 by set password save to Password-external data corresponding informance (step S160).
Then, external data saves processing unit 18 and the external data in exterior storage medium 50 is copied to external data guarantor The external data storage zone (step S161) for depositing portion 14, to the external number of exterior storage medium 50 and external data storage zone According to whether unanimously being determined (step S162).Data are shown under the inconsistent situation of the two (the case where step S162 is No) Abnormal (step S163), the processing returns to step S161.
At the two unanimous circumstances the case where (step S162 be Yes), external data saves processing unit 18 to copying to The external data and password of external data storage unit 14 are associated, and are saved to password-external data corresponding informance (step S164).Then, the external data (step S165) in exterior storage medium 50 is removed, processing terminate.
In addition, in the above description, as the connected slot of exterior storage medium 50, with SD card, USB storage, It is illustrated for this 3 kinds of CompactFlash, however, not limited to this, being also possible to other kinds of exterior storage medium 50, in addition it is possible to be directed to various species and any number of connected slot is arranged.
Figure 26 is the process for indicating an example for unloading processing step for exterior storage medium involved in embodiment 5 Figure.Firstly, if having been selected to insert as the exterior storage medium 50 of write-back target or connection via input unit 12 by user Slot (step S171), then external data write-back portion 22 checks whether the (step of exterior storage medium 50 being connected with as write-back target Rapid S172).The case where being not connected with exterior storage medium 50 as write-back target under (the case where step S172 is No), by table Show that the error message of not connected exterior storage medium 50 is shown in display unit 13 (step S173), the processing returns to step S171.
The case where being connected with exterior storage medium 50 as write-back target under (the case where step S172 is Yes), by User inputs password (step S174) via input unit 12.21 pairs of passwords inputted of password determination unit whether with password-outside The password that data corresponding informance is saved unanimously is determined (step S175).
(step S175 is the inconsistent situation of password in the password inputted with password-external data corresponding informance The case where No) under, the inconsistent this case of password is shown in display unit 13 (step S176), return step S174.In addition, Password unanimous circumstances (the case where step S175 is Yes) in the password and password-external data corresponding informance inputted Under, external data write-back portion 22 reads the write-back License Info (step S177) of exterior storage medium 50, returns to external data It writes and whether obtains permitting being determined (step S178).In the write-back of external data, (step S178 is not for licensed-in situation The case where No) under, it is indicated the display (step S179) that the write-back of external data cannot be carried out to exterior storage medium 50, place Reason terminates.
On the other hand, under the licensed-in situation of the write-back of external data (the case where step S178 is Yes), external number The external data corresponding with the password inputted in external data storage unit 14 is written back to external storage according to write-back portion 22 Medium 50 (step S180).Then, external data write-back portion 22 is to 2 in exterior storage medium 50 and external data storage unit 14 Whether a external data is unanimously compareed (step S181), will be counted in inconsistent situation (the case where step S181 is No) It is shown in display unit 13 (step S182) according to this abnormal main idea, the processing returns to step S180.
In addition, carrying out reference under the two unanimous circumstances (the case where step S181 is Yes) to set information, determining Whether external data (step S183) external data storage unit 14 in is removed.Number in external data storage unit 14 to be removed According to the case where the case where (step S183 be Yes) under, remove the external data (step S184) in external data storage unit 14, clearly Except the password (step S185) of the corresponding record of password-external data corresponding informance.
Then the case where or in step S183 being the unclear external data except in external data saving part 14 (step The case where S183 is No) under, exterior storage medium 50 becomes the state (step S186) that can be unloaded, and processing terminate.
The figure of the summary for the step of Figure 27 is the write-back processing for schematically showing data involved in embodiment 5.Such as Shown in Figure 27 (a), it is in following states, that is, in the external data storage zone 1031 of the inside portion 103 of control device 10 In preserve external data S1, be stored in password-external data corresponding informance 1032 corresponding with external data S1 close Code S1, is stored with set information S1 corresponding with exterior storage medium 50 in set information 1033.
In the execution of write-back processing, it is confirmed whether that exterior storage medium 50 is installed, then carries out inputted password Whether be stored in the consistent judgement of password-external data corresponding informance password S1, then, determine exterior storage medium 50 Write-back License Info S1 whether have granted the write-back of external data S1.
Then, in the case where the write-back License Info S1 of exterior storage medium 50 has granted the write-back of external data S1, As shown in Figure 27 (b), the external data S1 of external data storage zone 1032 is copied into exterior storage medium 50, is returned It writes.
In addition, in the above description, for exterior storage medium 50 each type and set, however, you can also not It is to be directed to type, but identified and set for each individual.In this case, for each individual to setting Information and password-external data corresponding informance are managed.In addition, being situated between as each individual to external storage Matter 50 carries out knowledge method for distinguishing, is able to use such as the individual identification information for indicating the respective information of product.
Figure 28 is the password-external number indicated for each individual and in the case where being managed to exterior storage medium According to the figure of an example of corresponding informance.As shown in this figure, become further additional on the basis of the set information of Figure 24 The construction of intrinsic information, that is, individual identification information relevant to exterior storage medium.
In the case where such as individual identification information is " SD card 1 ", classification information is " SD card ", has data protection function Can, be also assigned with write back data target, registered as write back data target information SD card, USB storage, These classifications of CompactFlash, data dump is set to effectively in inside portion.
In addition, classification information is " USB storage " in the case where such as individual identification information is " USB storage 1 ", With data protection function, not specified write back data target and write back data target information, data dump quilt in inside portion It is set as effective.
Also, in the case where individual identification information is " CompactFlash 1 ", classification information is " CompactFlash " has data protection function, in write back data target, write back data target information and inside portion Data dump is not set.In addition, for individual identification information " SD card 2 ", " USB storage 2 ", " CompactFlash 2 ", It is not connect with control device 10, the state before setting does not carry out any setting.
Figure 29 is to schematically show to connect with the exterior storage medium of multiple types, in the control device that is detached from The figure of the relationship of password-external data corresponding informance and set information.As shown in Figure 29 (a), it is provided in control device 10 SD card is with memory interface 104A, USB storage memory interface 104B and CompactFlash memory interface 104C.As exterior storage medium, there are SD card 51A, 51B, USB storage 52A, 52B, CompactFlash 53A, 53B Deng.In addition, it is assumed herein that set information 1033 be not for exterior storage medium type but for it is each individual and It is arranged.
Figure 29 (b) shows following states, that is, is connected with SD card 51A in the memory interface 104A of control device 10, is depositing Memory interface 104B is connected with USB storage 52A, is connected with CompactFlash 53A in memory interface 104C.In addition, It is each that SD card 51A, USB storage 52A and CompactFlash 53A are registered in the set information 1033 of inside portion 103 From record.The external data that external data S1, U1 of SD card 51A and USB storage 52A are transferred to inside portion 103 is protected Region 1031 is deposited, it is corresponding, SD card 51A and USB storage 52A is stored in password-external data corresponding informance 1032 Password S1, U1.But the external data C1 of CompactFlash 53A is not stored in the external data of inside portion 103 Storage zone 1031.In addition, preserving License Info S1 in SD card 51A.
Set information and password-external data corresponding informance are independently subjected to pipe in addition, showing in the above description The case where reason, but can also include set information in password-external data corresponding informance.Figure 30 is indicated comprising setting letter The figure of one example of password-external data corresponding informance including the content of breath.As shown in this figure, make write back data target The set informations such as medium information are associated with the combination of external data and password and saved as record.
In embodiment 5, if exterior storage medium 50 is connected to control device 10, to include no data protect Protective function, whether there is or not including the external data whether removed in external data storage unit 14 after the specified of write back data target, write-back Set information set, handled based on its content.Therefore there are following effects, that is, can be situated between for external storage Each type of matter 50 or it is each individual and could set to the write-back of external data, external data quilt can be prevented Illegally take away.
Embodiment 6
In embodiment 6, illustrate that exterior storage medium is made to have the function of the case where key, i.e. key.
Figure 31 is the block diagram for schematically showing the functional structure of control device involved in embodiment 6.Control dress Setting 10 on the basis of the control device of embodiment 5 also there is exterior storage medium to dismount test section 30, which is situated between Matter dismounts dismounting state of the test section 30 to exterior storage medium 50 relative to control device 10 and detects.Exterior storage medium Dismount what test section 30 came in the external data in exterior storage medium 50 to execution unloading after external 14 unloading of data saving part When external data, to the exterior storage medium 50 for storing the external data to be executed originally whether be installed on control device 10 into Row determines, gives its result notice to control processing unit 24.That is, being equipped with the outside for storing the external data to be executed originally In the case where storage medium 50, control processing unit 24 is able to carry out the data such as program or parameter i.e. external data, stores up in script The case where exterior storage medium 50 for having the external data to be executed has disengaged from is equipped with and stores and to execute originally External data the different exterior storage medium 50 of exterior storage medium 50 in the case where, control processing unit 24 cannot execute outer Portion's data.
Figure 32 is the figure for indicating an example of structure for set information involved in embodiment 6.In set information Also it is attached with the project for indicating whether to utilize exterior storage medium 50 as the execution key of the external data copied. In the case where being set as being utilized as execution key, if not installing exterior storage medium 50, script cannot be executed It is stored in the external data of exterior storage medium 50.On the other hand, it is being set as the case where being utilized not as execution key Under, it is able to carry out external data, and it is unrelated with whether there is or not exterior storage medium 50 is installed.In addition, for other structures, due to reality It is identical to apply structure illustrated by mode 5, therefore the description thereof will be omitted.
Exterior storage medium dismounting test section 30 for example obtain installed exterior storage medium 50 classification information or Individual identification information determines to have carried out associated classification by set information with the control external data to be executed of processing unit 24 Whether whether information or individual identification information have the classification information or individual identification information got, so as to be able to External data is enough executed to notify to give control processing unit 24.
The process of one example of the step of Figure 33 is the execution processing for indicating external data involved in embodiment 6 Figure.Firstly, if having selected the external data (step S191) executed by control processing unit 24, exterior storage medium dismounting inspection Survey portion 30 obtains the classification information for preserving the exterior storage medium 50 for the external data to be executed originally using set information Or individual identification information (step S192).In addition, exterior storage medium dismounts test section 30 in external storage medium interface Whether 11, which be equipped with exterior storage medium 50, is determined (step S193).(step the case where being equipped with exterior storage medium 50 The case where rapid S193 is Yes) under, further obtain the classification information or individual identification information (step of the exterior storage medium 50 Rapid S194).Then, exterior storage medium dismounting test section 30 is to 2 classification informations or individual identification information that get It is no unanimously to be determined (step S195).
Under the two unanimous circumstances (the case where step S195 is Yes), exterior storage medium dismounts test section 30 for 2 Classification information or this consistent main idea of individual identification information notify to give control processing unit 24.Control processing unit 24 executes as a result, Selected external data (step S197), processing terminate.
On the other hand, under the inconsistent situation of the two (the case where step S195 is No), exterior storage medium dismounting inspection Survey portion 30 notifies 2 classification informations or this inconsistent main idea of individual identification information to give control processing unit 24.Then, it controls Processing unit 24 cannot execute selected external data (step S197), and exterior storage medium, which dismounts test section 30, will remind installation The message of correct exterior storage medium 50 is shown in display unit 13 (step S198), and processing terminate.
In addition, if being that exterior storage medium 50 is not installed on 11 (step of exterior storage medium interface in step S193 S193 is No), then exterior storage medium dismounting test section 30 will not install exterior storage medium 50 this main idea and notify to control Processing unit 24.Then, control processing unit 24 cannot execute selected external data (step S199), exterior storage medium dismounting Test section 30 will remind the message of installation exterior storage medium 50 to be shown in display unit 13 (step S200), and processing terminate.
Figure 34 and Figure 35 is the one of the state for the execution processing for schematically showing external data involved in embodiment 6 The figure of a example.As shown in Figure 34 (a), it is in following states, that is, external data 351 is transferred to from exterior storage medium 50 The external data storage zone 1031 of inside portion 103, empty exterior storage medium 50 are installed on control device 10.In the shape Under state, if being instructed to execute the external data 351 of external data storage zone 1031, CPU 101 is confirmed whether to connect There is the exterior storage medium 50 with classification information associated with external data 351 or individual identification information.
Then, as shown in Figure 34 (b), the connection of exterior storage medium 50 and the installation of exterior storage medium 50 are being confirmed In the state of control device 10, CPU 101 is able to carry out the external data 351 of external data storage zone 1031.
On the other hand, as shown in Figure 35 (a), in the case where having unloaded exterior storage medium 50 from control device 10, CPU The confirmation whether 101 progress exterior storage mediums 50 connect with control device 10.At this point, CPU 101 confirms external storage Jie Matter 50 is not connect with control device 10.If exterior storage medium 50 is not connect with control device 10, such as Figure 35 (b) institute Show, CPU 101 becomes to execute the state of external data 351.
Further, since the feelings that the processing and exterior storage medium 50 in the case where being mounted with exterior storage medium 50 are detached from Processing under condition is roughly the same with processing illustrated by embodiment 5, therefore the description thereof will be omitted.
In embodiment 6, after external data is transferred to external data storage unit 14 from exterior storage medium 50, such as Fruit be not be to preserve the exterior storage medium 50 of the external data originally to be installed on the state of control device 10, then cannot execute External data.It is present in the situation near control device 10 if not user as a result, then cannot executes originally by external storage The external data that medium 50 is saved.As a result, exterior storage medium 50 is extracted and attached from control device 10 in such as user When closely leaving, even if the third party installs other exterior storage mediums 50 in control device 10, control device 10 will not be gone out The movement that user expects.
Embodiment 7
In the above-described embodiment, the case where the external data of external data storage unit is written back to exterior storage medium Under, the write-back in the form of plaintext.The case where illustrating the write-back in the form of ciphertext in embodiment 7.
Control device 10 in embodiment 7 is identical as the structure of control device 10 of above embodiment, but external number It is different according to the function in write-back portion 22.If performing the order of write-back processing, having input password, external data write-back portion 22 makes Use inputted password, password i.e. associated with the external data as object and to the conduct in external data saving part 14 The external data of object is encrypted, and encrypted external data is copied to exterior storage medium 50.In addition, the number after duplication According to control be encrypted external data by copying to exterior storage medium 50 and as the encrypted outer of copy source What portion's data carried out.
In the following, the write-back processing to said external data is illustrated.In addition, for being mounted with outside in embodiment 7 Processing in the case where portion's storage medium 50, due to identical as above embodiment, and the description is omitted.Figure 36 and Figure 37 is to show The figure of the example for the step of indicating to meaning property the write-back processing of external data involved in embodiment 7.In addition, at this In, only the major part of write-back processing is illustrated.
Firstly, being in following states as shown in Figure 36 (a), that is, exterior storage medium 50 is installed in control device 10, The data that exterior storage medium 50 is saved are transferred to external data storage unit 14.In this state, user is via operating surface Plate 105 and indicate execute unloading for exterior storage medium 50 issue orders.
If performing unloading for exterior storage medium 50 to issue orders, such as shown in Figure 36 (b), the input picture of password is shown It is shown in display unit 13, inputs password via operation panel 105 by user.To the password inputted whether with password-external data Password in corresponding informance 1032 is unanimously compareed.
Then, as shown in Figure 37 (a), external data write-back portion 22 utilize inputted password and to the password that is inputted External data 351 in associated external data storage zone 1031 is encrypted, and encryption external data (not shown) is generated. Then, external data write-back portion 22 copies to exterior storage medium 50 for external data is encrypted, to the encryption external number copied It is compareed according to whether 301A is consistent with the encryption external data as copy source.
Then, the outside under the two unanimous circumstances, as shown in Figure 37 (b), after replicating encryption external data 301A Storage medium 50 becomes the state that can be unloaded from control device 10.In addition, to work as illustrated by above embodiment External data 351 for the basis of encryption external data 301A is handled.In addition, adding for what is generated in control device 10 Close external data can both delete after control, can also remain on data save area as former state.In addition, as described above will control The processing that external data 351 in device 10 processed is written back to exterior storage medium 50 as encryption external data 301A can fit For the respective embodiments described above.
In embodiment 7, carrying out the external data in external data storage unit 14 being written back to exterior storage medium In the case where 50 processing, the password set for the external data will be used to carry out encrypted encryption external data write-back To exterior storage medium 50.Thus there are following effects, that is, in the state that external data is written back to exterior storage medium 50 Under, even if the external data that also can reduce in exterior storage medium 50 is read in the case where exterior storage medium 50 is stolen The probability look at.
Embodiment 8
In embodiment 2, external data saving part idle capacity than external number that exterior storage medium is saved According to the smaller situation of total size under, the high external data of priority is saved to external data storage unit, priority is low External data remain on exterior storage medium as former state.In embodiment 8, illustrate to the data for remaining on exterior storage medium The case where being encrypted.
Control device 10 of the control device 10 involved in embodiment 8 relative to embodiment 2, at external data preservation The function in reason portion 18 is different.That is, external data saves processing unit 18 also with following function: will exterior storage medium 50 it is outer When portion's data conversion storage to external data storage unit 14, external data saving part 14 idle capacity than exterior storage medium 50 In the smaller situation of total size of external data, unloading external data is copied into external data storage unit 14, and utilize Set password and the residual external data for remaining on exterior storage medium 50 is encrypted and generates encryption external data, And save to exterior storage medium 50, delete residual external data.
Figure 38 is the processing indicated in the case where being mounted with exterior storage medium to control device involved in embodiment 8 The flow chart of one example of step.Firstly, in the same manner as the step S51 to S57 of Figure 10 of embodiment 2, if outside is deposited Storage media 50 is mounted to control device 10, then external data storage zone configuration part 15 is in inside portion to external data Storage zone is set, external data save area capacity than exterior storage medium 50 external data total size In smaller situation, based on can unloading data capacity and distributing be transferred to external data storage unit 14 unloading external data and Remain on the residual external data of exterior storage medium 50.Password when then, to write back data is set, will be set Password is saved to password-external data corresponding informance (step S211 to S217).
Then, the residual external data in exterior storage medium 50 is carried out using the password set in step S216 It encrypts and generates encryption residual external data (step S218), encryption is remained into external data and is saved to exterior storage medium 50, Remove the residual external data (step S219) in exterior storage medium 50.At this point, external data save processing unit 18 can also be with Expression encrypts the residual external data in addition to unloading external data and saves to exterior storage medium 50 this and want The display of purport is exported to display unit 13.
Then, the unloading external data in exterior storage medium 50 is copied to the external data of external data storage unit 14 Storage zone (step S220).Then, in the same manner as the step S59 to S63 of Figure 10 of embodiment 2, external storage Jie is carried out Control between matter 50 and the unloading external data of external data storage unit 14, the unloading that external data storage unit 14 is saved The save location of external data is registered to password-external data corresponding informance, is removed outside the unloading in exterior storage medium 50 Data (step S221 to S225).Processing terminate as a result,.
Figure 39 is the figure for schematically showing the case where handling involved in embodiment 8 external data.Scheming In 39 (a), it is assumed that the external data 301,302 in exterior storage medium 50 is unloading external data, external data 303,304 quilts It is appointed as residual external data.If setting password, such as shown in Figure 39 (b), external data 303,304 is remained by set Password encrypted, as encryption external data 303X, 304X and save to exterior storage medium 50.Then, by external number It is removed according to 303,304 from exterior storage medium 50.On the other hand, the same as that of the second embodiment by unloading external data 301,302 Copy to the free area 1031B of inside portion 103.
In the case where exterior storage medium 50 to be detached from from control device 10, it is also possible to as shown in Figure 39 (c), it is external Unloading external data 301,302 in external data storage unit 14 is copied to exterior storage medium 50 by write back data portion 22, and And encryption external data 303X, 304X in exterior storage medium 50 is decrypted using the password inputted and by plaintext It remains external data 303,304 to save to exterior storage medium 50, removes encryption external data 303X, 304X.In this case, External data write-back portion 22 has the function that the encryption data in exterior storage medium 50 is decrypted using password.
Alternatively, being also possible to as shown in Figure 39 (d), external data write-back portion 22 uses inputted password and to external number It is encrypted according to the unloading external data 301,302 in storage unit 14 and generates encryption external data 301X, 302X, by the encryption External data 301X, 302X copies to exterior storage medium 50.In this case, external data write-back portion 22, which has, uses password External data in external data saving part 14 is encrypted and is saved to the function of exterior storage medium 50.
In embodiment 8, external data save area capacity than exterior storage medium 50 external data conjunction It is smaller to count size, only a part of external data is transferred to external data storage unit 14, and other parts remain on external storage Jie In the case where matter 50, remaining external data is encrypted.Thus there are following effects, that is, even in operation process In the case where having extracted exterior storage medium 50, the content that also can reduce the external data in exterior storage medium 50 is seen Probability.
Embodiment 9
In the above-described embodiment, outer for exterior storage medium is installed on control device, is transferred to external data Relationship between the movement and installation condition of control device after portion's data saving part, it is not specifically mentioned in addition to embodiment 7. The case where explanation is detached from exterior storage medium in the case where control device execution processing in embodiment 9.
Figure 40 is the block diagram for schematically showing the functional structure of control device involved in embodiment 9.Control dress Set 10 have exterior storage medium interface 11, input unit 12, display unit 13, external data storage unit 14, at external data preservation Reason portion 18, control processing unit 24 and exterior storage medium dismount test section 30.
Exterior storage medium dismounting test section 30 is detected to whether exterior storage medium 50 is installed on control device 10. For example, control processing unit 24 when executing program, is inquired to exterior storage medium dismounting test section 30, external storage is situated between The installation condition of matter 50 notifies to give control processing unit 24.
If receiving the instruction copied to the external data of exterior storage medium 50 in control device 10 from user, External data saves processing unit 18 and the external data of exterior storage medium 50 is copied to external data storage unit 14.
Control processing unit 24 is in the case where accessing the external data that external data storage unit 14 is saved, to external storage Whether medium dismounting test section 30 inquires exterior storage medium 50 in the state for being installed on control device 10.It is situated between in external storage In the case that matter 50 is in installation condition, forbid the access of the external data to external data saving part 14, is situated between in external storage In the case that matter 50 is in disengaged position, it is able to carry out the access to external data.It is intended that preventing external data to control Device 10 processed continues to the state for being equipped with exterior storage medium 50 after replicating.In addition, to illustrated by above embodiment The identical constituent element of constituent element mark same label, the description thereof will be omitted.
In the following, being illustrated to processing involved in embodiment 9.Figure 41 is to indicate installation involved in embodiment 9 The flow chart of one example of the processing step in the case where exterior storage medium.Firstly, installation (the step of exterior storage medium 50 Rapid S231).Then, the external data of exterior storage medium 50 replicated to external data saving part 14 if issued from user It indicates (step S232), then external data saves processing unit 18 and the external data in exterior storage medium 50 is copied to external number According to storage unit 14 (step S233).In addition, in embodiment 9, as described above, can also be unclear except in exterior storage medium 50 External data.
Then, exterior storage medium dismounting test section 30 confirms the connection of exterior storage medium 50, externally Whether portion's storage medium 50, which has disengaged from, is determined (step S234).(step the case where being equipped with exterior storage medium 50 The case where S234 is No) under, forbid the access (step S235) of the external data into the external data storage unit 14 copied, Return step S234.
On the other hand, the case where exterior storage medium 50 has disengaged under (the case where step S234 is Yes), control processing Portion 24 can access the external data (step S236) in the external data storage unit 14 copied.Then, processing unit is controlled 24 carry out the access (step S237) to external data, and processing terminate.
Figure 42 is the control dress schematically shown in the case where being mounted with exterior storage medium involved in embodiment 9 The figure for the processing status set.As shown in Figure 42 (a), if exterior storage medium 50 is installed in control device 10, indicate outer The duplication of external data 301 in portion's storage medium 50, then external data 301 is copied to inside as external data 351 Storage unit 103.
Then, CPU 101 confirms to whether exterior storage medium 50 connect with control device 10.Herein, due to It is connected with exterior storage medium 50 in control device 10, therefore CPU 101 not can be carried out the external number in internally storage unit 103 According to 351 access.
Then, as shown in Figure 42 (b), if having extracted exterior storage medium 50 from control device 10, CPU 101 is detected It is detached to exterior storage medium 50 from control device 10, it becomes able to carry out the external data 351 in internally storage unit 103 Access.Further, it is possible to execute the processing for having used external data 351.
In embodiment 9, if being mounted with exterior storage medium 50, by the external data in exterior storage medium 50 External data storage unit 14 is copied to, then, is forbidden during being connected with exterior storage medium 50 to the external number copied According to access, be able to carry out access to the external data copied after the disengaging of exterior storage medium 50.Thus have following Effect, that is, exterior storage medium 50 can be prevented constantly to be installed on the state of control device 10, can prevent by the third party with Walk exterior storage medium 50.
Embodiment 10
Illustrate following situations in embodiment 10, that is, exterior storage medium is installed on control from embodiment 9 Device rises and encrypts after the stipulated time to the external data in exterior storage medium.
Figure 43 is the block diagram for schematically showing the functional structure of control device involved in embodiment 10.Control device 10 have exterior storage medium interface 11, input unit 12, display unit 13, external data storage unit 14, user authentication information storage Portion 31, user authentication department 32, external data save processing unit 18, external data protection portion 33, external data decryption part 34, control Processing unit 24 and exterior storage medium dismount test section 30.
User authentication information storage unit 31 is stored for the user authentication for using the user of control device 10 to be authenticated Information.User authentication information is including, for example, User ID, the password associated with User ID etc. that are identified to user.
If being connected to exterior storage medium 50, user authentication department 32 carries out user authentication.Specifically, in display unit 13 display user authentication pictures, it is whether consistent with user authentication information to the content for being input to user authentication picture to determine. Under input content and user authentication information unanimous circumstances, later operation is permitted, in input content and user authentication information In the case where inconsistent, later operation is disapproved.
It, will be not external even more than scheduled external data guard period after being mounted with exterior storage medium 50 yet In the case that storage medium 50 unloads, external data protection portion 33 deposits the user authentication informations such as password as key to outside The external data that storage media 50 is saved is encrypted, and is saved to exterior storage medium 50, is removed as the bright of initial data The external data of text.
If receiving the instruction that the encryption external data in exterior storage medium 50 is decrypted, external data solution Compact part 34 shows user authentication picture and carries out user authentication, if user authentication normally terminates, to exterior storage medium The 50 encryption external datas saved are decrypted, and remove encryption external data.In addition, the situation not successful in user authentication Under, encryption external data is not decrypted but maintains its state constant.
In addition, marking same label to constituent element identical with constituent element used in above embodiment, omit Its explanation.
In the following, the movement processing to control device 10 involved in embodiment 10 is illustrated.Figure 44 is to indicate to implement The flow chart of one example of the processing step of control device involved in mode 10.Firstly, if 50 quilt of exterior storage medium Control device 10 (step S251) is connected or be installed on, then is started timing (step S252), user authentication department 32 carries out user It authenticates (step S253).As user authentication, the input of User ID and password can be exemplified.User authentication department 32 recognizes user Whether card has successfully been determined (step S254).In the failed situation of user authentication (the case where step S254 is No), i.e. In the case where user authentication failure, processing terminate.
In addition, external data saves processing unit 18 under the successful situation of user authentication (the case where step S254 is Yes) External data in exterior storage medium 50 is copied into external data storage unit 14 (step S255).Exterior storage medium dismounting Test section 30 confirm exterior storage medium 50 connection, to exterior storage medium 50 whether from control device 10 be detached from into Row determines (step S256).The case where exterior storage medium 50 has disengaged under (the case where step S256 is Yes), it becomes able to Carry out the access (step S257) to the external data for copying to external data storage unit 14.Then, control processing unit 24 carries out Access (step S258) to external data, processing terminate.
Exterior storage medium 50 without departing from the case where the case where (step S256 be No) under, forbid to copying to external number According to the access (step S259) of the external data of storage unit 14.Then, to whether have passed through defined external data from timing Guard period is determined (step S260).(step S260 is No without defined external data guard period the case where The case where) under, return step S256.In addition, (step the case where have passed through defined external data guard period from timing The case where S260 is Yes) under, using user authentication informations such as passwords as key and to the external data in exterior storage medium 50 It is encrypted, and is saved to exterior storage medium 50 (step S261).In addition, deleting the source data as encryption, plaintext External data (step S262).
Then, if issuing the instruction (step such as decryption of encrypted external data in exterior storage medium 50 from user Rapid S263), then carry out user authentication (step S264) again.In the failed situation of user authentication, (step S265 is the feelings of No Condition), i.e. in the case where user authentication failure, processing terminate.
In addition, at the successful situation of user authentication the case where (step S265 be Yes), using user authentication information to adding External data after close is decrypted, and stores to exterior storage medium 50 (step S266).In addition, deleting exterior storage medium Encrypted external data (step S267) in 50.Processing terminate as a result,.
Figure 45 is figure the case where schematically showing the encryption of exterior storage medium involved in embodiment 10.Such as figure Shown in 45 (a), if exterior storage medium 50 is mounted to control device 10, use by user via operation panel 105 and The User ID and password of input carry out user authentication.If user authentication success, by the external number in exterior storage medium 50 Inside portion 103 is copied to according to 301.Whether CPU 101 is to being connected with exterior storage medium 50 and confirming, in the phase of connection Between forbid access to the external data 351 for copying to inside portion 103.
It is external to deposit if exterior storage medium 50 is placed the defined time in the state of being connected to control device 10 External data 301 in storage media 50 is encrypted.Then, as shown in Figure 45 (b), it is outer that encryption is saved in exterior storage medium 50 Portion data 301X deletes external data 301.In addition, by carrying out user authentication again in this state, so as to outside Encryption external data 301X in storage medium 50 is decrypted.
In embodiment 10, the external data in exterior storage medium 50 is copied to external data storage unit 14 Afterwards, even if having passed through the stipulated time from installing exterior storage medium 50, exterior storage medium 50 is right still without departing from the case where External data in exterior storage medium 50 is encrypted and is saved.There are following effects as a result, that is, even if external storage is situated between Matter 50 becomes the state chronically connecting with control device 10, and exterior storage medium 50 is extracted by the third party, also due to external number According to being encrypted, therefore a possibility that leakage of content of exterior storage medium 50, is small.
In addition, password, various inputs are not limited to the input unit 12 of operation panel 105 etc., computer also can be used, or Engineering tools can also be used via network etc..
Industrial applicibility
As described above, control device according to the present invention, for from the storage medium read-in programme that can be carried or The external datas such as parameter and be useful for the programmable controller or numerical control device equal controller that are handled.
The explanation of label
10 control devices, 11 exterior storage medium interfaces, 12 input units, 13 display units, 14 external data storage units, outside 15 Portion data save area configuration part, 16 external data determination units, 17 password setting portions, 18 external datas save processing unit, and 19 is close Code-external data corresponding information storage department, 20 external data removing portions, 21 password determination units, 22 external data write-back portions, 23 Internal data processing unit, 24 control processing units, 25 data cutting parts, 26 data combinings, 27 exterior storage medium acquisition of information Portion, 28 set information processing units, 29 set information storage units, 30 exterior storage mediums dismount test section, 31 user authentication informations Storage unit, 32 user authentication departments, 33 external data protection portion, 34 external data decryption parts, 50 exterior storage mediums, 101CPU, 102RAM, 103 inside portions, 104,104A-104C memory interface, 105 operation panels, 106 buses.

Claims (13)

1. a kind of control device, includes
Inside portion；And
Control processing unit, the program or parameter stored using the inside portion and carry out operation, be directed to institute The control of the control object of connection is handled,
The control device is characterized in that, comprising:
Information setting portion is compareed, after exterior storage medium is mounted to the control device, the control information setting portion is to from outer The control information of portion's input is set；
External data removing portion, if the external data that the exterior storage medium is stored is saved to the inside portion External data storage zone, then the external data removing portion removes the external data in the exterior storage medium；
External data saves processing unit, by the external data storage to the external data storage zone, by the outside The save location of data and the control information are associated in control information-external data corresponding informance；And
External data determination unit deposits the total size and the inside of the external data in the exterior storage medium The size of the free area in storage portion is compared,
Removing for the external data, external data removing portion execute the exterior storage medium initialization or Write-in of the random data to the exterior storage medium is carried out,
It is described in the case where total size of the external data is bigger than the size of the free area of the inside portion External data saves the described outer of the amount that processing unit is accommodated the size of the free area according to set priority Portion's data are saved to the external data storage zone.
2. a kind of control device, includes
Inside portion；And
Control processing unit, the program or parameter stored using the inside portion and carry out operation, be directed to institute The control of the control object of connection is handled,
The control device is characterized in that, comprising:
Information setting portion is compareed, after exterior storage medium is mounted to the control device, the control information setting portion is to from outer The control information of portion's input is set；
External data removing portion, if the external data that the exterior storage medium is stored is saved to the inside portion External data storage zone, then the external data removing portion removes the external data in the exterior storage medium；
External data saves processing unit, by the external data storage to the external data storage zone, by the outside The save location of data and the control information are associated in control information-external data corresponding informance；
External data determination unit deposits the total size and the inside of the external data in the exterior storage medium The size of the free area in storage portion is compared；And
Data cutting part is bigger than the size of the free area of the inside portion in total size of the external data In the case where, the external data is divided into it is multiple,
Removing for the external data, external data removing portion execute the exterior storage medium initialization or Write-in of the random data to the exterior storage medium is carried out,
The external data is saved processing unit and is collected with amount corresponding with the quantity of the external data from each outside At least one that data acquisition arrives divides data, and saves to the external data storage zone.
3. control device according to claim 2, which is characterized in that
Also there is data combining, which obtains segmentation data from the external data storage zone, and obtains and From the segmentation data of the exterior storage medium, it is combined and restores the external data.
4. a kind of control device, includes
Inside portion；And
Control processing unit, the program or parameter stored using the inside portion and carry out operation, be directed to institute The control of the control object of connection is handled,
The control device is characterized in that, comprising:
Information setting portion is compareed, after exterior storage medium is mounted to the control device, the control information setting portion is to from outer The control information of portion's input is set；
External data removing portion, if the external data that the exterior storage medium is stored is saved to the inside portion External data storage zone, then the external data removing portion removes the external data in the exterior storage medium；
External data saves processing unit, by the external data storage to the external data storage zone, by the outside The save location of data and the control information are associated in control information-external data corresponding informance；
Information determination unit is compareed, determines the input inputted when extracting the exterior storage medium installed control letter Whether breath is consistent with the control information that the control information-external data corresponding informance is stored；And
External data write-back portion, in the case where the input compares information and the control information unanimous circumstances, by the outside The external data in data save area copies to the exterior storage medium,
Removing for the external data, external data removing portion execute the exterior storage medium initialization or Write-in of the random data to the exterior storage medium is carried out,
If the external data is updated, the external data saves processing unit using updated external data as update External data and save to the external data storage zone, by it is described update external data save location compare letter with described The control information that breath-external data corresponding informance is associated with the external data saves in association,
External data write-back portion by from the external data and it is described update in external data the write back data selected to The exterior storage medium.
5. a kind of control device, includes
Inside portion；And
Control processing unit, the program or parameter stored using the inside portion and carry out operation, be directed to institute The control of the control object of connection is handled,
The control device is characterized in that, comprising:
Information setting portion is compareed, after exterior storage medium is mounted to the control device, the control information setting portion is to from outer The control information of portion's input is set；
External data removing portion, if the external data that the exterior storage medium is stored is saved to the inside portion External data storage zone, then the external data removing portion removes the external data in the exterior storage medium；
External data saves processing unit, by the external data storage to the external data storage zone, by the outside The save location of data and the control information are associated in control information-external data corresponding informance；
Information determination unit is compareed, determines the input inputted when extracting the exterior storage medium installed control letter Whether breath is consistent with the control information that the control information-external data corresponding informance is stored；
External data write-back portion, in the case where the input compares information and the control information unanimous circumstances, by the outside The external data in data save area copies to the exterior storage medium；
Exterior storage medium information acquiring section is deposited if the exterior storage medium is mounted to the control device, outside this Storage media information acquiring section obtains intrinsic information relevant to the exterior storage medium；And
Set information processing unit is wrapped there is no in the case where the data with the intrinsic information in set information The presence or absence of data protection containing the exterior storage medium, the external data write-back target information and the storage inside The setting processing of the set information including data dump in portion,
Removing for the external data, external data removing portion execute the exterior storage medium initialization or Write-in of the random data to the exterior storage medium is carried out,
The control information setting portion, the external data save processing unit, external data removing portion and the external number The set information is based on according to write-back portion and is handled.
6. control device according to claim 5, which is characterized in that
License Info is written to the exterior storage medium set information processing unit, and License Info expression could be by institute The write-back that external data write-back portion carries out the external data is stated,
External data write-back portion is when replicating the external data of the external data storage zone, referring to the outside The License Info of storage medium determines whether the write-back to the exterior storage medium is permitted, licensed-in In the case of replicate the external data, do not replicate the external data in not licensed-in situation.
7. control device according to claim 5, which is characterized in that
Also there is exterior storage medium to dismount test section, which dismounts test section to the exterior storage medium phase The dismounting state of the control device is detected,
In the case where being equipped with the exterior storage medium, the exterior storage medium dismounting test section is to the external storage The intrinsic information of medium and from the set information obtain script preserve by it is described control processing unit execute external data The intrinsic information of exterior storage medium whether unanimously determined,
The control processing unit is only in the intrinsic information of the exterior storage medium and the intrinsic letter obtained from the set information The external data is executed under breath unanimous circumstances, does not execute the external data in the case where in addition to this.
8. control device according to claim 4 or 5, which is characterized in that
Also there is internal data processing unit, after the external data is copied to the exterior storage medium, the internal data Processing unit removes the external data in the external data storage zone.
9. control device according to claim 4 or 5, which is characterized in that
External data write-back portion is using the control information to the external data in the external data storage zone It is encrypted and generates encryption external data, the encryption external data is copied into the exterior storage medium.
10. control device according to claim 1, which is characterized in that
The external data save processing unit using the control information and to remaining on the described outer of the exterior storage medium Portion's data are encrypted and generate encryption external data, and the encryption external data is copied to the exterior storage medium, is deleted Except the external data of the source data as encryption.
11. control device according to claim 10, which is characterized in that
External data write-back portion is saved by the external data in the external data storage zone to the outside When storage medium, the encryption external data in the exterior storage medium is decrypted using the control information and It saves to the exterior storage medium.
12. control device according to claim 10, which is characterized in that
External data write-back portion is saved by the external data in the external data storage zone to the outside When storage medium, the external data in the external data storage zone is encrypted using the control information and is protected It deposits to the exterior storage medium.
13. a kind of control device, includes
Inside portion；And
Control processing unit, the program or parameter stored using the inside portion and carry out operation, be directed to institute The control of the control object of connection is handled,
The control device is characterized in that, comprising:
External data saves processing unit, if exterior storage medium is mounted to the control device, at the external data preservation External data in the exterior storage medium is copied to the inside portion immediately by reason portion；
Exterior storage medium dismounts test section, and after replicating the external data, which dismounts test section to institute The dismounting state for stating exterior storage medium is confirmed；
User authentication information storage unit stores user authentication information, and the user authentication information is for filled using the control The certification of the user set；
User authentication department carries out the certification of the user using the user authentication information；
External data protection portion, in the outside described in the scheduled period from the exterior storage medium is mounted to the control device Still without departing from the case where, which uses and is stored in the user authentication information storage unit storage medium The user authentication information encrypts the external data in the exterior storage medium and generates encryption external data, It saves to the exterior storage medium, and deletes the external data；And
The encryption external data in the exterior storage medium is decrypted in external data decryption part,
The control processing unit is forbidden in the case where the exterior storage medium is in installation condition to copying to the inside The access of the external data of storage unit is able to carry out to multiple in the case where the exterior storage medium is in disengaged position The access of the external data of the inside portion is made,
If made by the user authentication department after generating the encryption external data by the external data protection portion The certification of the user again out, then the encryption external data is decrypted in the external data decryption part.
CN201480077498.XA 2014-05-14 2014-05-14 Control device Expired - Fee Related CN106133744B (en)

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