CN107844695A - A kind of PLC engineering softwares protection device and its guard method - Google Patents
A kind of PLC engineering softwares protection device and its guard method Download PDFInfo
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- CN107844695A CN107844695A CN201710959788.2A CN201710959788A CN107844695A CN 107844695 A CN107844695 A CN 107844695A CN 201710959788 A CN201710959788 A CN 201710959788A CN 107844695 A CN107844695 A CN 107844695A
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- plc
- subprogram
- protection
- preset programming
- institutes
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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
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
-
- 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
- G06F21/602—Providing cryptographic facilities or services
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Bioethics (AREA)
- General Health & Medical Sciences (AREA)
- Storage Device Security (AREA)
Abstract
The present invention provides pre-set programs in a kind of PLC engineering softwares guard method, including the preset programming card of PLC engineering softwares identification PLC institutes；When PLC engineering softwares recognize protection subprogram is not present in pre-set programs in the preset programming cards of PLC institutes when, then PLC engineering softwares stop in the preset programming cards of write-in PLC institutes.Implement the present invention, unrestrictedly used after can effectively preventing circulation, avoid economic loss.
Description
Technical field
The present invention relates to PLC technology field, more particularly to a kind of PLC engineering softwares protection device and its guard method.
Background technology
Loaded the PLC of PLC engineering softwares generally can all use as the nonshared control unit of certain machine, and with it is man-machine
The packings such as interface HMI, driver are fabricated to dedicated control system.However, the not corresponding protection of most of PLC engineering softwares
Measure, after circulation, it is easy to which the general PLC bought by people from other approach is downloaded and compiled, so as to produce phase
The dedicated control system of machine and sale are answered, is thus easy to bring great economic loss to producer and agent.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is, there is provided a kind of PLC engineering softwares protection device and its guarantor
Maintaining method, unrestrictedly used after can effectively preventing circulation, avoid economic loss.
In order to solve the above-mentioned technical problem, the embodiments of the invention provide a kind of PLC engineering softwares protection device protection side
Method, methods described include：
Pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
When the PLC engineering softwares recognize protection subprogram is not present in pre-set programs in the preset programming card of the PLC institute when, then
The PLC engineering softwares stop writing in the preset programming card of the PLC institutes.
Wherein, methods described further comprises：
When the PLC engineering softwares recognize in the preset programming card of PLC institute there is protection subprogram in pre-set programs when, then institute
Stating PLC engineering softwares should search with protecting subprogram name identical protection subprogram in the PLC preset programming cards, and treat
It is determined that do not find with after protection subprogram name identical protection subprogram in the PLC preset programming cards, stopping writing
In the preset programming card of the PLC institutes.
Wherein, methods described further comprises：
When the PLC engineering softwares recognize in the preset programming card of PLC institute there is protection subprogram in pre-set programs when, then institute
Stating PLC engineering softwares should search with protecting subprogram name identical protection subprogram in the PLC preset programming cards, and treat
It is determined that find with after protection subprogram name identical protection subprogram in the PLC preset programming cards, writing the PLC
In the preset programming card of institute, and it is further that the protection subprogram found is identical to being named in the preset programming card of PLC institutes
Protection subprogram covered.
Wherein, protected in the preset programming card of PLC institute named in subprogram and its corresponding PLC engineering softwares it is identical
Protection subprogram handled using AES.
Wherein, methods described further comprises：
Pre-setting the PLC engineering softwares has common subprogram and protection subprogram.
The embodiment of the present invention additionally provides a kind of PLC engineering softwares protection device, and the PLC engineering protections device includes：
Recognition unit, for pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
First protection location, for not deposited when the PLC engineering softwares recognize pre-set programs in the preset programming card of the PLC institutes
When protecting subprogram, then the PLC engineering softwares stop writing in the preset programming card of the PLC institutes.
Wherein, the PLC engineering softwares protection device also includes：
Second protection location, for existing when the PLC engineering softwares recognize pre-set programs in the preset programming card of the PLC institutes
When protecting subprogram, then the PLC engineering softwares should be searched protects subprogram name identical with the PLC preset programming cards
Protection subprogram, and it is to be determined do not find and the preset programming cards of PLC institutes in protect subprogram name identical protection
After subprogram, stop writing in the preset programming card of the PLC institutes.
Wherein, the PLC engineering softwares device also includes：
Writing unit is protected, for existing when the PLC engineering softwares recognize pre-set programs in the preset programming card of the PLC institutes
When protecting subprogram, then the PLC engineering softwares should be searched protects subprogram name identical with the PLC preset programming cards
Protection subprogram, and it is to be determined find and the preset programming cards of PLC institutes in protect subprogram name identical protection
After program, write in the preset programming card of the PLC institutes, and it is further that the protection subprogram found is pre- to PLC institutes
Put and name identical protection subprogram to be covered in programming card.
Wherein, protected in the preset programming card of PLC institute named in subprogram and its corresponding PLC engineering softwares it is identical
Protection subprogram handled using AES.
Wherein, the PLC engineering softwares protection device also includes：
Default unit, there is common subprogram and protection subprogram for pre-setting the PLC engineering softwares.
Implement the embodiment of the present invention, have the advantages that：
In embodiments of the present invention, by identifying in the preset programming card of PLC institutes with the presence or absence of protection subprogram and protection
Program whether with PLC engineering softwares it is default protection the identical protection to realize to PLC engineering softwares of subprogram, so as to have
Effect prevents from unrestrictedly being used after circulating, and avoids economic loss.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to
These accompanying drawings obtain other accompanying drawings and still fall within scope of the invention.
Fig. 1 is a kind of flow chart for PLC engineering softwares guard method that the embodiment of the present invention one provides；
Fig. 2 is the flow chart for another PLC engineering softwares guard method that the embodiment of the present invention two provides；
Fig. 3 is the flow chart for another PLC engineering software guard method that the embodiment of the present invention three provides；
Fig. 4 is a kind of structural representation for PLC engineering softwares protection device that the embodiment of the present invention four provides；
Fig. 5 is the structural representation for another PLC engineering softwares protection device that the embodiment of the present invention five provides；
Fig. 6 is the structural representation for another PLC engineering software protection device that the embodiment of the present invention six provides.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.
As shown in figure 1, in the embodiment of the present invention one, there is provided a kind of PLC engineering softwares protection device guard method, institute
The method of stating includes：
Step S11, pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
Step S12, protection is not present when the PLC engineering softwares recognize pre-set programs in the preset programming card of the PLC institutes
During program, then the PLC engineering softwares stop writing in the preset programming card of the PLC institutes.
Detailed process is, on PLC during loading PLC engineering softwares（Either load, or downloaded when downloading
Into rear loading）, PLC engineering softwares all can quickly identify PLC by pre-set programs in the preset programming card of institute, by discriminating whether to deposit
Self-protection is realized in protection subprogram.Once protection subprogram is not present in the preset programming card of PLC institutes, then illustrate currently
PLC owner is not agent（Be primarily due to PLC before dispatching from the factory all can filling genuine protection subprogram）, PLC works
Journey software can stop writing in the preset programming card of PLC institutes.
As shown in Fig. 2 in the embodiment of the present invention two, there is provided another PLC engineering softwares protection device guard method,
Methods described includes：
Step S21, pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
Step S22, the sub- journey of protection be present when the PLC engineering softwares recognize pre-set programs in the preset programming card of the PLC institutes
During sequence, then the PLC engineering softwares should be searched with protecting subprogram name identical protection in the PLC preset programming cards
Program, and it is to be determined do not find with protect subprogram name identical protection subprogram in PLC institutes preset programming cards after,
Stop writing in the preset programming card of the PLC institutes
Detailed process is, on PLC during loading PLC engineering softwares（Either loaded when downloading, or after the completion of download
Loading）Although PLC engineering softwares can quickly identify that PLC has protection by pre-set programs in the preset programming card of institute
Program, but also need by differentiating whether the protection subprogram is genuine product to realize self-protection.If the protection subprogram
It is not genuine, then PLC engineering softwares should just stop writing in the preset programming card of PLC institutes.It is understood that judge protection
Whether program is genuine product, is not limited solely to name, output parameter, analysis result etc..
Therefore, before step S11, can pre-set PLC engineering softwares has common subprogram and protection subprogram.
Once check and accept PLC in preset programming card protect subprogram and PLC engineering softwares protect subprogram not of the same name, i.e. PLC
Engineering software determines not finding with protecting subprogram name identical protection subprogram in PLC preset programming cards, then PLC works
Journey software should just stop writing in the preset programming card of PLC institutes.
It should be noted that protected in the preset programming cards of PLC institutes named in subprogram and its corresponding PLC engineering softwares it is identical
Protection subprogram handled using AES, so user can be avoided to know and be modified, so as to further
Protectiveness is improved, is unrestrictedly used after effectively preventing circulation.
As shown in figure 3, in the embodiment of the present invention three, there is provided another PLC engineering software protection device guard method,
Methods described includes：
Step S31, pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
Step S32, the sub- journey of protection be present when the PLC engineering softwares recognize pre-set programs in the preset programming card of the PLC institutes
During sequence, then the PLC engineering softwares should be searched with protecting subprogram name identical protection in the PLC preset programming cards
Program, and it is to be determined find with protect subprogram name identical protection subprogram in PLC institutes preset programming cards after, write
Enter in the preset programming card of the PLC institutes, and further by the protection subprogram found in the preset programming card of PLC institutes
Name identical protection subprogram is covered.
Detailed process is, on PLC during loading PLC engineering softwares（Either load, or downloaded when downloading
Into rear loading）, it is sub that PLC engineering softwares can quickly identify that PLC passes through pre-set programs presence protection in the preset programming card of institute
Program, and can also differentiate that the protection subprogram is genuine product, then PLC engineering softwares should just write the preset programming card of PLC institutes
In.It is understood that judging to protect whether subprogram is genuine product, name, output parameter, parsing knot are not limited solely to
Fruit etc..
Therefore, before step S31, can pre-set PLC engineering softwares has common subprogram and protection subprogram.
Once check and accept PLC protection subprogram in preset programming card and the protection subprogram of PLC engineering softwares it is of the same name, i.e. PLC works
Journey software determines not finding with protecting subprogram name identical protection subprogram in PLC preset programming cards, then PLC engineerings
In the preset programming card of software write-in PLC institutes, and protection subprogram of the same name is covered.
It should be noted that protected in the preset programming cards of PLC institutes named in subprogram and its corresponding PLC engineering softwares it is identical
Protection subprogram handled using AES, so user can be avoided to know and be modified, so as to further
Protectiveness is improved, is unrestrictedly used after effectively preventing circulation.
As shown in figure 4, in the embodiment of the present invention four, there is provided a kind of PLC engineering softwares protection device, the PLC works
Journey protection device includes：
Recognition unit 110, for pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
First protection location 120, for recognizing pre-set programs in the preset programming card of the PLC institutes when the PLC engineering softwares
During in the absence of protection subprogram, then the PLC engineering softwares stop writing in the preset programming card of the PLC institutes.
As shown in figure 5, in the embodiment of the present invention five, there is provided another PLC engineering softwares protection device, the PLC
Engineering protection device includes：
Recognition unit 210, for pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
Second protection location 220, for recognizing pre-set programs in the preset programming card of the PLC institutes when the PLC engineering softwares
During in the presence of protection subprogram, then the PLC engineering softwares should be searched with protecting subprogram name in the PLC preset programming cards
Identical protects subprogram, and it is to be determined do not find and the preset programming cards of PLC institutes in protect subprogram name identical
After protecting subprogram, stop writing in the preset programming card of the PLC institutes.
Wherein, protected in the preset programming card of PLC institute named in subprogram and its corresponding PLC engineering softwares it is identical
Protection subprogram handled using AES.
Wherein, the PLC engineering softwares protection device also includes：
Default unit, there is common subprogram and protection subprogram for pre-setting the PLC engineering softwares.
As shown in fig. 6, in the embodiment of the present invention six, there is provided another PLC engineering software protection device, the PLC
Engineering protection device includes：
Recognition unit 310, for pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
Writing unit 320 is protected, for recognizing pre-set programs in the preset programming card of the PLC institutes when the PLC engineering softwares
During in the presence of protection subprogram, then the PLC engineering softwares should be searched with protecting subprogram name in the PLC preset programming cards
Identical protects subprogram, and to be determined find is protected with protection subprogram name identical in the PLC preset programming cards
After protecting subprogram, write in the preset programming card of the PLC institutes, and further by the protection subprogram found to the PLC
Identical protection subprogram is named to be covered in the preset programming card of institute.
Wherein, protected in the preset programming card of PLC institute named in subprogram and its corresponding PLC engineering softwares it is identical
Protection subprogram handled using AES.
Wherein, the PLC engineering softwares protection device also includes：
Default unit, there is common subprogram and protection subprogram for pre-setting the PLC engineering softwares.
Implement the embodiment of the present invention, have the advantages that：
In embodiments of the present invention, by identifying in the preset programming card of PLC institutes with the presence or absence of protection subprogram and protection
Program whether with PLC engineering softwares it is default protection the identical protection to realize to PLC engineering softwares of subprogram, so as to have
Effect prevents from unrestrictedly being used after circulating, and avoids economic loss.
It is worth noting that, in above-described embodiment, included each system unit is simply drawn according to function logic
Point, but above-mentioned division is not limited to, as long as corresponding function can be realized；In addition, each functional unit is specific
Title is also only to facilitate mutually distinguish, the protection domain being not intended to limit the invention.
Can be with one of ordinary skill in the art will appreciate that realizing that all or part of step in above-described embodiment method is
The hardware of correlation is instructed to complete by program, described program can be stored in a computer read/write memory medium,
Described storage medium, such as ROM/RAM, disk, CD.
Above disclosure is only preferred embodiment of present invention, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (10)
1. a kind of PLC engineering softwares guard method, it is characterised in that methods described includes：
Pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
When the PLC engineering softwares recognize protection subprogram is not present in pre-set programs in the preset programming card of the PLC institute when, then
The PLC engineering softwares stop writing in the preset programming card of the PLC institutes.
2. the method as described in claim 1, it is characterised in that methods described further comprises：
When the PLC engineering softwares recognize in the preset programming card of PLC institute there is protection subprogram in pre-set programs when, then institute
Stating PLC engineering softwares should search with protecting subprogram name identical protection subprogram in the PLC preset programming cards, and treat
It is determined that do not find with after protection subprogram name identical protection subprogram in the PLC preset programming cards, stopping writing
In the preset programming card of the PLC institutes.
3. method as claimed in claim 2, it is characterised in that methods described further comprises：
When the PLC engineering softwares recognize in the preset programming card of PLC institute there is protection subprogram in pre-set programs when, then institute
Stating PLC engineering softwares should search with protecting subprogram name identical protection subprogram in the PLC preset programming cards, and treat
It is determined that find with after protection subprogram name identical protection subprogram in the PLC preset programming cards, writing the PLC
In the preset programming card of institute, and it is further that the protection subprogram found is identical to being named in the preset programming card of PLC institutes
Protection subprogram covered.
4. method as claimed in claim 3, it is characterised in that subprogram and its right is protected in the preset programming card of PLC institute
Answer and name identical protection subprogram to be handled using AES in the PLC engineering softwares.
5. the method as described in claim 1, it is characterised in that methods described further comprises：
Pre-setting the PLC engineering softwares has common subprogram and protection subprogram.
6. a kind of PLC engineering softwares protection device, it is characterised in that the PLC engineering protections device includes：
Recognition unit, for pre-set programs in the preset programming card of PLC engineering softwares identification PLC institutes；
First protection location, for not deposited when the PLC engineering softwares recognize pre-set programs in the preset programming card of the PLC institutes
When protecting subprogram, then the PLC engineering softwares stop writing in the preset programming card of the PLC institutes.
7. PLC engineering softwares protection device as claimed in claim 6, it is characterised in that the PLC engineering softwares protection device
Also include：
Second protection location, for existing when the PLC engineering softwares recognize pre-set programs in the preset programming card of the PLC institutes
When protecting subprogram, then the PLC engineering softwares should be searched protects subprogram name identical with the PLC preset programming cards
Protection subprogram, and it is to be determined do not find and the preset programming cards of PLC institutes in protect subprogram name identical protection
After subprogram, stop writing in the preset programming card of the PLC institutes.
8. PLC engineering softwares protection device as claimed in claim 7, it is characterised in that the PLC engineering softwares device also wraps
Include：
Writing unit is protected, for existing when the PLC engineering softwares recognize pre-set programs in the preset programming card of the PLC institutes
When protecting subprogram, then the PLC engineering softwares should be searched protects subprogram name identical with the PLC preset programming cards
Protection subprogram, and it is to be determined find and the preset programming cards of PLC institutes in protect subprogram name identical protection
After program, write in the preset programming card of the PLC institutes, and it is further that the protection subprogram found is pre- to PLC institutes
Put and name identical protection subprogram to be covered in programming card.
9. PLC engineering softwares protection device as claimed in claim 8, it is characterised in that protected in the preset programming card of the PLC institutes
Identical protection subprogram is named to be handled using AES in shield subprogram and its corresponding PLC engineering softwares.
10. PLC engineering softwares protection device as claimed in claim 6, it is characterised in that the PLC engineering softwares protection dress
Putting also includes：
Default unit, there is common subprogram and protection subprogram for pre-setting the PLC engineering softwares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959788.2A CN107844695A (en) | 2017-10-16 | 2017-10-16 | A kind of PLC engineering softwares protection device and its guard method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959788.2A CN107844695A (en) | 2017-10-16 | 2017-10-16 | A kind of PLC engineering softwares protection device and its guard method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107844695A true CN107844695A (en) | 2018-03-27 |
Family
ID=61661373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710959788.2A Pending CN107844695A (en) | 2017-10-16 | 2017-10-16 | A kind of PLC engineering softwares protection device and its guard method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110069261A (en) * | 2019-05-11 | 2019-07-30 | 肖银皓 | A kind of configurable partition method and system of embedded software |
| CN113094662A (en) * | 2021-04-13 | 2021-07-09 | 深圳市合信自动化技术有限公司 | Safe downloading method for preventing client from making programming card by remotely downloading program |
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| CN102354142A (en) * | 2011-07-26 | 2012-02-15 | 深圳市麦格米特控制技术有限公司 | Encryption method for programmable logic controller (PLC) |
| CN103544451A (en) * | 2013-10-29 | 2014-01-29 | 威海麦科电气技术有限公司 | Programmable logic controller (PLC) encryption method and system based on step-by-step maintaining |
| CN104580316A (en) * | 2013-10-24 | 2015-04-29 | 深圳市国信互联科技有限公司 | Software authorization management method and software authorization management system |
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| US20030233547A1 (en) * | 2001-09-25 | 2003-12-18 | Global Anti-Piracy Systems, Inc. | Systems and methods for preventing and detecting unauthorized copying of software |
| CN102354142A (en) * | 2011-07-26 | 2012-02-15 | 深圳市麦格米特控制技术有限公司 | Encryption method for programmable logic controller (PLC) |
| CN104580316A (en) * | 2013-10-24 | 2015-04-29 | 深圳市国信互联科技有限公司 | Software authorization management method and software authorization management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110069261A (en) * | 2019-05-11 | 2019-07-30 | 肖银皓 | A kind of configurable partition method and system of embedded software |
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