CN114019901B - Method and device for integrally controlling information and production safety risk of numerical control machine tool - Google Patents
Method and device for integrally controlling information and production safety risk of numerical control machine tool Download PDFInfo
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- CN114019901B CN114019901B CN202111299784.9A CN202111299784A CN114019901B CN 114019901 B CN114019901 B CN 114019901B CN 202111299784 A CN202111299784 A CN 202111299784A CN 114019901 B CN114019901 B CN 114019901B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35349—Display part, programmed locus and tool path, traject, dynamic locus
Abstract
The invention discloses a method and a device for integrally controlling information and production safety risk of a numerical control machine tool, wherein the device comprises a numerical control machine tool safety domain state information acquisition module for acquiring uniform numerical control machine tool safety domain state information and a numerical control machine tool integrated safety risk control model for instantly generating a numerical control machine tool integrated risk control strategy by utilizing the uniform numerical control machine tool safety domain state information, and the numerical control machine tool safety domain state information acquisition module is in communication connection with the numerical control machine tool integrated safety risk control model. The invention provides a method for integrally controlling information safety and production safety risk of a numerical control machine tool, which strengthens the internal relation between the information safety and the production safety, effectively reduces or avoids the introduction of new risk and avoids unexpected shutdown.
Description
Technical Field
The invention relates to the technical field of machine tool safety risk control. In particular to a method and a device for integrally controlling information and production safety risk of a numerical control machine tool.
Background
The numerical control machine tool becomes the core of intelligent manufacturing, and along with the development of industrial internet, the numerical control machine tool not only faces the production safety risk brought by unexpected faults and the like in the production process, but also faces the information safety risk of hacking and the like. How to more comprehensively control the safety risk of the machine tool is a problem which needs to be solved urgently at present.
At present, in the field of safety risk control of numerical control machines, production safety risk control represented by health management and information safety risk control represented by machine tool firewall have some achievements, but the requirements cannot be met. Specifically, the numerical control machine tool lacks integrated management on business safety and information safety, and cannot comprehensively reflect the information safety and production safety risks faced by the numerical control machine tool at the same time, so that an integrated risk prevention and control strategy cannot be formed, and the consequences of separate processing may cause repeated unplanned shutdown on one hand, and on the other hand, the inherent relation between information safety and production safety is broken, so that introduction of new risks may be caused. For example, merely installing a production safety risk control device, whether software or hardware, may pose an information safety risk, while installing an information safety protection device may introduce a new production continuity risk.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to provide a method and an apparatus for integrally controlling information and production safety risk of a numerical control machine tool, and provide a method for integrally controlling information safety and production safety risk of a numerical control machine tool, so as to strengthen the internal relation between information safety and production safety, effectively reduce or avoid the introduction of new risk, and avoid unexpected shutdown.
In order to solve the technical problems, the invention provides the following technical scheme:
the method for integrally controlling the information and production safety risk of the numerical control machine tool comprises the following steps:
s1) defining the integrated safety Risk Risk of the numerical control machine;
s2), constructing an integrated safety risk control model M of the numerical control machine; the numerical control machine tool integrated safety risk control model M comprises a data acquisition unit, a strategy deduction unit and a strategy output unit;
s3) defining and acquiring the state information I of the integrated security domain of the numerical control machine tool in real time;
s4) defining an integrated risk control strategy S of the numerical control machine tool; immediately generating the numerical control machine tool integrated safety risk control model M constructed in the step S2) according to the numerical control machine tool integrated safety domain state information I acquired in the step S3), and specifically comprising the following steps: in the integrated security risk control model M of the nc machine tool, the data acquisition unit acquires the state information I of the integrated security domain of the nc machine tool acquired in real time in step S3) and sends the state information I of the integrated security domain of the nc machine tool to the policy deduction unit, the policy deduction unit analyzes the state information I of the integrated security domain of the nc machine tool and obtains an integrated risk control policy S of the nc machine tool having a mapping relation with an analysis result according to the analysis result, and the policy deduction unit sends the obtained integrated risk control policy S of the nc machine tool to the policy output unit and outputs the integrated risk control policy S of the nc machine tool by the policy output unit.
In the method for integrally controlling the information and the production safety Risk of the numerically-controlled machine tool, the value of the integral safety Risk Risk of the numerically-controlled machine tool defined in the step S1) is the probability that the numerical-controlled machine tool cannot reach the preset capacity under the influence of the safety event, wherein the safety event at least comprises the information safety event and the production safety event.
In the method for integrally controlling the information of the numerical control machine and the production safety risk, the mapping relation between the analysis result of analyzing the state information I of the integral safety domain of the numerical control machine and the integral risk control strategy S of the numerical control machine is obtained by the strategy deduction module in the following way: aiming at minimizing the Risk value, training by using a reinforcement learning algorithm, searching Risk values after different numerical control machine integration Risk control strategies S are used according to the grasped numerical control machine integration safety domain state information I, and taking the searched Risk values as the basis of algorithm convergence; the samples used for training are samples obtained based on collected historical data and a constructed machine tool operation simulation environment; the trained numerical control machine tool integrated safety risk control model M has the capability of instantly generating a numerical control machine tool integrated risk control strategy S corresponding to the minimum risk according to the numerical control machine tool integrated safety domain state information I acquired in real time.
In step S3), the integrated security domain state information I of the cnc machine obtained in real time is the security domain state information (T, R, V) of the cnc machine, where T represents time, T represents a machine type, R represents a constraint condition set, the constraint condition set includes a usage target and a usage environment of the machine, V represents a risk domain state parameter set, and the risk domain state parameter set includes a risk domain state parameter item and a parameter value corresponding to the risk domain state parameter item.
According to the method for integrally controlling the information and production safety risk of the numerical control machine tool, the risk domain state parameter item at least comprises the main shaft noise and the high-risk leak quantity, and the parameter value corresponding to the risk domain state parameter item is acquired through actual acquisition.
In step S4), the numerically-controlled machine tool integrated risk control strategy S output by the numerically-controlled machine tool integrated safety risk control model M is a numerically-controlled machine tool integrated risk control strategy (t, COAs), where t represents time, and the COAs represents a specific task set, where the specific task set at least includes a task execution subject, task execution content, and a task execution target.
In the method for integrally controlling the information and the production safety risk of the numerical control machine tool, in step S3), the unified safety domain state information of the numerical control machine tool is acquired in real time every 10S.
The device for controlling information and production safety risk by using the method for integrally controlling information and production safety risk of the numerical control machine tool comprises the following steps:
the numerical control machine tool safety domain state information acquisition module is used for acquiring numerical control machine tool integrated safety domain state information I;
the numerical control machine integrated safety risk control model M is used for instantly generating a numerical control machine integrated risk control strategy S by utilizing numerical control machine integrated safety domain state information I; the numerical control machine tool integrated safety risk control model M comprises a data acquisition unit, a strategy deduction unit and a strategy output unit;
the numerical control machine security domain state information acquisition module is in communication connection with the data acquisition unit, the data acquisition unit is in communication connection with the strategy deduction unit, and the strategy deduction unit is in communication connection with the strategy output unit.
According to the device, the numerical control machine tool security domain state information acquisition module acquires the numerical control machine tool integrated security domain state information I in real time once every 10 s.
The technical scheme of the invention achieves the following beneficial technical effects:
the invention can integrally control risks in the aspects of information safety and production safety, and is more beneficial to avoiding unexpected halt, thereby improving the utilization rate of the machine tool and improving the production benefit.
Drawings
Fig. 1 is a flow chart illustrating a method for integrally controlling information and production safety risk of a numerical control machine tool according to the present invention.
Detailed Description
The device for controlling information and production safety risk by using the method for integrally controlling information and production safety risk of the numerical control machine comprises a numerical control machine safety domain state information acquisition module and a numerical control machine integrated safety risk control model M, wherein the numerical control machine integrated safety risk control model M comprises a data acquisition unit, a strategy deduction unit and a strategy output unit; the numerical control machine security domain state information acquisition module is in communication connection with the data acquisition unit, the data acquisition unit is in communication connection with the strategy deduction unit, and the strategy deduction unit is in communication connection with the strategy output unit. The numerical control machine tool integrated safety risk control model M is used for instantly generating a numerical control machine tool integrated risk control strategy S by utilizing the numerical control machine tool integrated safety domain state information I; the numerical control machine security domain state information acquisition module acquires unified numerical control machine security domain state information once every 10 s.
As shown in fig. 1, when the information security and the production security risk of the physical numerically controlled machine tool are integrally controlled, the following steps are performed:
s1) defining the integrated safety Risk Risk of the numerical control machine; the numerical control machine tool integrated safety Risk Risk value is the probability that the preset capacity cannot be reached under the influence of safety events, wherein the safety events at least comprise information safety events and production safety events;
s2) constructing an integrated safety risk control model M of the numerical control machine tool; the numerical control machine tool integrated safety risk control model M comprises a data acquisition unit, a strategy deduction unit and a strategy output unit;
s3) defining and acquiring the state information I of the integrated security domain of the numerical control machine tool in real time, wherein the state information I is acquired every 10S; the method comprises the steps that numerical control machine tool integrated security domain state information I obtained in real time is numerical control machine tool security domain state information (T, T, R and V), wherein T represents time, T represents a machine tool type, R represents a constraint condition set, the constraint condition set comprises a use target and a use environment of a machine tool, V represents a risk domain state parameter set, and the risk domain state parameter set comprises a risk domain state parameter item and a parameter value corresponding to the risk domain state parameter item; the risk domain state parameter items at least comprise main shaft noise and high-risk loophole quantity, and parameter values corresponding to the risk domain state parameter items are acquired through actual acquisition; the risk domain state parameter item relates to two aspects of an information security domain and a production security domain;
s4) defining an integrated risk control strategy S of the numerical control machine tool; immediately generating the numerical control machine tool integrated safety risk control model M constructed in the step S2) according to the numerical control machine tool integrated safety domain state information I acquired in the step S3), and specifically comprising the following steps: in the integrated security risk control model M of the nc machine, the data acquisition unit acquires the state information I of the integrated security domain of the nc machine obtained in real time in step S3) and sends the state information I of the integrated security domain of the nc machine to the policy deduction unit, the policy deduction unit analyzes the state information I of the integrated security domain of the nc machine and obtains the integrated risk control policy S of the nc machine having a mapping relation with the analysis result according to the analysis result, the policy deduction unit sends the obtained integrated risk control policy S of the nc machine to the policy output unit and outputs the integrated risk control policy S of the nc machine by the policy output unit, the output integrated risk control policy S of the nc machine is the integrated risk control policy (t, coa) of the nc machine, wherein t represents a time, the coa represents a specific task set at least comprising a task execution main body, a policy control unit, a policy management unit, a, Task execution content and a task execution target; the mapping relation between the analysis result of analyzing the state information I of the integrated security domain of the numerical control machine and the integrated risk control strategy S of the numerical control machine is obtained by the strategy deduction module in the following mode: aiming at minimizing the Risk value, training by using a reinforcement learning algorithm, searching Risk values after different numerical control machine integration Risk control strategies S are used according to the grasped numerical control machine integration safety domain state information I, and taking the searched Risk values as the basis of algorithm convergence; the samples used for training are samples obtained based on collected historical data and a constructed machine tool operation simulation environment; the trained numerical control machine tool integrated safety risk control model M has the capability of instantly generating a numerical control machine tool integrated risk control strategy S corresponding to the minimum risk according to the numerical control machine tool integrated safety domain state information I acquired in real time.
Specifically to practical application, a numerically-controlled machine tool integrated safety risk control model M is established in the system for information safety and production safety, the numerically-controlled machine tool integrated safety risk control model M can generate a numerically-controlled machine tool integrated risk control strategy S according to numerically-controlled machine tool integrated safety domain state information I, and then a numerically-controlled machine tool integrated safety domain state information acquisition module is established in the system and used for acquiring numerically-controlled machine tool integrated safety domain state information I in real time. The system can be a numerical control system configured by a physical numerical control machine tool, and can also be an auxiliary control system configured additionally.
Setting unified numerical control machine security domain state information (T, T, R, V), wherein T represents time; t denotes the machine tool type and is denoted by Ti(ii) a R represents a constraint condition set at the current moment, and 3 items of a use target, a task load and a use environment are selected; v represents a risk domain state parameter set at a specified moment, 4 items of high-risk virus quantity, high-risk leak quantity, spindle rotating speed and spindle noise are selected, the high-risk virus quantity, the high-risk leak quantity, the spindle rotating speed and the spindle noise are taken once every 10 seconds, and the acquired unified security domain state information of the numerical control machine tool is shown in a table 1:
TABLE 1 unified NC machine security domain state information obtained
Based on the numerical control machine tool integrated safety risk control model established in the step 1, inputting the state information of the security domain of the uniform numerical control machine tool acquired in real time in the step 2, and outputting the numerical control machine tool integrated risk control strategy, wherein the risk control strategy mainly comprises a task execution main body, task execution contents and a task execution target, and is shown in a table 2:
TABLE 2 instantly generated integrated risk control strategy for numerically controlled machine tool
By integrally carrying out risk control on information safety and production safety, the internal relation between the information safety and the production safety is strengthened, and new risks can be effectively prevented from being introduced or the probability of introducing the new risks can be reduced when production safety risk control equipment or information safety protection equipment is additionally arranged.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (7)
1. The method for integrally controlling the information and production safety risk of the numerical control machine is characterized by comprising the following steps of:
s1), defining an integrated safety Risk Risk of the numerical control machine tool, wherein the value of the integrated safety Risk Risk of the numerical control machine tool is the probability that the integrated safety Risk Risk of the numerical control machine tool is influenced by a safety event and cannot reach the preset capacity, and the safety event at least comprises an information safety event and a production safety event;
s2), constructing an integrated safety risk control model M of the numerical control machine; the numerical control machine tool integrated safety risk control model M comprises a data acquisition unit, a strategy deduction unit and a strategy output unit; the mapping relation between the analysis result of analyzing the state information I of the integrated security domain of the numerical control machine and the integrated risk control strategy S of the numerical control machine is obtained by the strategy deduction module in the following mode: aiming at minimizing the Risk value, training by using a reinforcement learning algorithm, searching Risk values after different numerical control machine integration Risk control strategies S are used according to the grasped numerical control machine integration safety domain state information I, and taking the searched Risk values as the basis of algorithm convergence; the samples used for training are samples obtained based on collected historical data and a constructed machine tool operation simulation environment; the trained numerical control machine tool integrated safety risk control model M has the capability of instantly generating a numerical control machine tool integrated risk control strategy S corresponding to the minimum risk according to the numerical control machine tool integrated safety domain state information I acquired in real time;
s3) defining and acquiring the state information I of the integrated security domain of the numerical control machine tool in real time;
s4) defining an integrated risk control strategy S of the numerical control machine tool; immediately generating the numerical control machine tool integrated safety risk control model M constructed in the step S2) according to the numerical control machine tool integrated safety domain state information I acquired in the step S3), and specifically comprising the following steps: in the integrated safety risk control model M of the numerically-controlled machine tool, the data acquisition unit acquires state information I of the integrated safety domain of the numerically-controlled machine tool obtained in real time in step S3) and sends the state information I of the integrated safety domain of the numerically-controlled machine tool to the policy deduction unit, the policy deduction unit analyzes the state information I of the integrated safety domain of the numerically-controlled machine tool and obtains an integrated risk control strategy S of the numerically-controlled machine tool having a mapping relation with an analysis result according to the analysis result, and the policy deduction unit sends the obtained integrated risk control strategy S of the numerically-controlled machine tool to the policy output unit and outputs the integrated risk control strategy S of the numerically-controlled machine tool by the policy output unit.
2. The method for integrally controlling security risk of a cnc machine according to claim 1, wherein in step S3), the information I is obtained in real time as the information (T, R, V), wherein T represents time, T represents machine type, R represents a set of constraints, the set of constraints includes usage target and usage environment of the machine, V represents a set of risk domain state parameters, and the set of risk domain state parameters includes a risk domain state parameter item and a parameter value corresponding to the risk domain state parameter item.
3. The method for integrally controlling the information and the production safety risk of the numerical control machine tool according to claim 2, wherein the risk domain state parameter items at least comprise spindle noise and the number of high-risk holes, and the parameter values corresponding to the risk domain state parameter items are obtained by actual acquisition.
4. The method for integrally controlling numerical control machine information and production safety risk according to claim 1, wherein in step S4), the numerical control machine integrated risk control strategy S outputted by the numerical control machine integrated safety risk control model M is a numerical control machine integrated risk control strategy (t, COAs), wherein t represents a time, and the COAs represents a specific task set, and the specific task set at least comprises a task execution subject, a task execution content and a task execution target.
5. The method for integrally controlling security domain status of numerically-controlled machine tool according to any one of claims 1 to 4, wherein in step S3), the unified security domain status information of numerically-controlled machine tool is obtained in real time every 10S.
6. The device for controlling information and production safety risk by using the method for integrally controlling information and production safety risk of the numerical control machine tool according to any one of claims 1 to 5 is characterized by comprising the following steps:
the numerical control machine tool safety domain state information acquisition module is used for acquiring numerical control machine tool integrated safety domain state information I;
the numerical control machine integrated safety risk control model M is used for instantly generating a numerical control machine integrated risk control strategy S by utilizing numerical control machine integrated safety domain state information I; the numerical control machine tool integrated safety risk control model M comprises a data acquisition unit, a strategy deduction unit and a strategy output unit;
the numerical control machine security domain state information acquisition module is in communication connection with the data acquisition unit, the data acquisition unit is in communication connection with the strategy deduction unit, and the strategy deduction unit is in communication connection with the strategy output unit.
7. The apparatus of claim 6, wherein the NC machine security domain state information acquisition module acquires the NC machine integrated security domain state information I in real time every 10 s.
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| CN105938329A (en) * | 2016-04-08 | 2016-09-14 | 北京稳力科技有限公司 | Method for dynamic characteristic simulation of numerically controlled machine tool and integration with numerical control system |
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