CN117055495A - Management method, system, equipment and storage medium for equipment protection action - Google Patents
Management method, system, equipment and storage medium for equipment protection action Download PDFInfo
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- CN117055495A CN117055495A CN202311148613.5A CN202311148613A CN117055495A CN 117055495 A CN117055495 A CN 117055495A CN 202311148613 A CN202311148613 A CN 202311148613A CN 117055495 A CN117055495 A CN 117055495A
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- 238000003860 storage Methods 0.000 title claims abstract description 11
- 238000007726 management method Methods 0.000 title abstract description 12
- 230000002159 abnormal effect Effects 0.000 claims abstract description 27
- 230000008034 disappearance Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 34
- 238000004590 computer program Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000005856 abnormality Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
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- 238000004458 analytical method Methods 0.000 description 1
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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
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
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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
- G05B2219/32—Operator till task planning
- G05B2219/32252—Scheduling production, machining, job shop
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- Safety Devices In Control Systems (AREA)
Abstract
The application discloses a management method, a system, equipment and a storage medium for equipment protection action, which are applied to the technical field of industrial control and comprise the following steps: when the equipment normally operates, the open state signal of the first electric door disappears, and the close state signal of the first electric door is received; sequentially judging whether preset N off state conditions are met; if at least k items are true, determining that the first electric door is in a closed state, and executing a protection action for the equipment; if the number of established states is less than k, it is determined that the first power door is in an opened state, and it is determined that the off-state signal received after the disappearance of the on-state signal is a false trigger signal, and a protection action for the device is not performed. By applying the scheme of the application, the safety of equipment can be effectively ensured when the protection action is to be executed, the expansion of faults is avoided, and the occurrence of abnormal shutdown and other events of a unit can not be caused when the protection action is not to be executed, so that the production efficiency is not influenced.
Description
Technical Field
The present invention relates to the field of industrial control technologies, and in particular, to a method, a system, an apparatus, and a storage medium for managing a device protection action.
Background
The electric door is an actuating mechanism in the industrial production process, and a worker can operate the valve switch of the electric door through the control system, so that the production process parameters can be adjusted by adjusting the opening and closing states of the electric door, and the electric door is an important device in the industrial production.
When controlling the electric door, it usually involves an open state signal, a close state signal, an open command and a close command, and a worker can send the open command through the control system, after the electric door is opened to a fully open position, the open state signal can be fed back to the control system, and the worker can observe that the electric door is fully opened through the operation interface. Correspondingly, a worker can send a closing instruction through the control system, after the electric door is closed to the full closing position, a closing state signal can be fed back to the control system, and the worker can observe that the electric door is fully closed through the operation interface. It can be seen that by the above operation, a worker can realize the opening or closing of the remote operation power door.
The electric door is an important process control device, so that an open state signal and a close state signal of the electric door are often used for protection logic in a production process, for example, a hydraulic control butterfly valve at an inlet of a circulating water pump is closed to interlock a tripping circulating water pump, wherein the close state signal of the electric door is used, for example, the close state signal of the electric door at an outlet of a blower is used to interlock a tripping blower, the close state signal of the electric door is used to interlock the electric door at the outlet of the induced draft fan, for example, the close state signal of the electric door at the outlet of the induced draft fan is used to interlock a tripping induced draft fan, and the close state signal of the electric door is used to realize the tripping of the electric door. The integrated circuit board of the electric door is extremely easy to damage and then fails due to the influence of the service life of electronic components of the electric door, the temperature, the humidity and other factors of the installation site, and when the electric door fails, a closing state signal or an opening state signal can be sent out by mistake. For example, when a certain electric door is at the current open position, the open state signal should be fed back to the control system normally, and the open state signal of the electric door disappears due to the fault of the electronic circuit, and the close state signal is fed back, for example, the electric door feeds back the open state signal and the close state signal at the same time, at this time, the system can consider that the electric door is closed, and then the protection action of the system can be triggered. However, the electric door is still in the open position at this time, the protection action of the system is actually error protection, which may cause abnormal shutdown of the unit, affect the production efficiency, cause economic loss, and even may cause other abnormal conditions.
In summary, how to effectively reduce the probability of system protection misoperation is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a management method, a system, equipment and a storage medium for equipment protection actions, so as to effectively reduce the probability of system protection misoperation.
In order to solve the technical problems, the invention provides the following technical scheme:
a method of managing device protection actions, comprising:
when the equipment normally operates, the open state signal of the first electric door disappears, and the close state signal of the first electric door is received;
sequentially judging whether preset N off state conditions are met;
if at least k preset N off-state conditions are met, determining that the first electric door is in a closed state, and executing a protection action for the equipment;
if the number of established N preset off-state conditions is smaller than k, determining that the first electric door is in an opened state, determining that the off-state signal received after the on-state signal disappears is a false trigger signal, and not executing a protection action for the equipment;
Wherein N is a positive integer not less than 2, k is a positive integer not less than 2, and N is not less than k.
In one embodiment, determining whether the preset a-th off state condition is satisfied includes:
judging whether the working current at a first designated position of the equipment is lower than a preset current threshold value or not;
if yes, determining that the a-th off state condition is met;
if not, determining that the a-th off state condition is not satisfied;
wherein a is a positive integer, and represents an a-th off state condition in N off state conditions.
In one embodiment, determining whether the preset b-th off state condition is satisfied includes:
judging whether the valve pressure difference at a second designated position of the equipment is higher than a preset pressure difference threshold value or not;
if yes, determining that the b-th off state condition is met;
if not, determining that the closing state condition of the b item is not satisfied;
wherein b is a positive integer, and represents the b-th off-state condition in the N-th off-state conditions.
In one embodiment, determining whether the preset c-th off state condition is satisfied includes:
starting timing when the open state signal of the first electric door disappears, and stopping timing when the close state signal of the first electric door is received, so as to obtain timing duration;
Judging whether the timing duration exceeds a preset first duration;
if yes, determining that a c-th off-state condition is met;
if not, determining that the c-th off-state condition is not satisfied;
and c is a positive integer, the c-th off state condition in the N off state conditions is represented, and the first time length represents the shortest time for switching the first electric door from the opened state to the closed state.
In one embodiment, the method further comprises:
when the equipment is in normal operation, when the open state signal of the first electric door and the close state signal of the first electric door are received at the same time, determining that the first electric door is in fault, and temporarily not executing the protection action for the equipment.
In one embodiment, the method further comprises:
when the equipment operates normally, a closing instruction for the first electric door is received;
controlling the first electric door to be in a closed state based on the closing instruction;
after receiving the closing state signal of the first electric door, sequentially judging whether preset N closing state conditions are met;
if at least k preset N off-state conditions are met, determining that the first electric door is in a closed state;
If the number of established N preset closing state conditions is smaller than k, determining that the first electric door is in an opened state, and outputting prompt information of the first electric door fault.
In one embodiment, the method further comprises:
when the equipment normally operates, the closing state signal of the second electric door disappears, and the opening state signal of the second electric door is received;
sequentially judging whether preset M open state conditions are met;
if at least p preset M open state conditions are met, determining that the second electric door is in an open state, and executing a protection action for the equipment;
if the number of established M preset open state conditions is smaller than p, determining that the second electric door is in a closed state, determining that the received open state signal is a false trigger signal, and not executing a protection action for the equipment;
wherein M is a positive integer not less than 2, p is a positive integer not less than 2, and M is not less than p.
A management system for device protection actions, comprising:
the abnormal closing state signal receiving module is used for eliminating the opening state signal of the first electric door and receiving the closing state signal of the first electric door when the equipment normally operates;
The judging module is used for sequentially judging whether the preset N off state conditions are met;
if at least k preset N off-state conditions are met, triggering a first execution module, wherein the first execution module is used for: determining that the first electrically powered door is in a closed state and performing a protective action for the device;
if the number of established preset N off state conditions is smaller than k, triggering a second execution module, wherein the second execution module is used for: determining that the first electrically operated gate is in an open state, and determining that the off state signal received after the disappearance of the on state signal is a false trigger signal, and not performing a protection action for the device;
wherein N is a positive integer not less than 2, k is a positive integer not less than 2, and N is not less than k.
A management device for device protection actions, comprising:
a memory for storing a computer program;
a processor for executing the computer program to implement the steps of the method of managing device protection actions as described above.
A computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of managing device protection actions as described above.
By applying the technical scheme provided by the embodiment of the application, the situation that the electric door sends out the off state signal by mistake often occurs when the system protection is in error operation is considered. In this regard, in the scheme of the present application, if the open state signal of the first electric door disappears and the close state signal of the first electric door is received when the device is operating normally, an abnormal situation occurs at this time, and for this abnormal situation, the scheme of the present application does not directly perform the protection action for the device, but considers that the close state signal at this time may be erroneously emitted. In this regard, the present application sequentially determines whether the preset N off-state conditions are satisfied. If at least k preset N off state conditions are met, it can be determined that the first electric door is in a closed state at the moment, and since the first electric door is in an open state at the moment, after the first electric door is determined to be closed, protection action for equipment can be executed, so that safety of the equipment is guaranteed, and expansion of faults is avoided. If the number of the established N preset off-state conditions is smaller than k, it can be stated that the first electric door is not closed but is in an open state at this time, that is, it can be determined that the received off-state signal is a false trigger signal after the on-state signal disappears, so that protection action on equipment can not be executed at this time, and the abnormal shutdown of the unit and other events are not caused, and the production efficiency is not affected.
In summary, in the scheme of the application, after the open state signal of the first electric door disappears and the close state signal of the first electric door is received, for such abnormal situations, the protection action for the equipment is not directly executed, but whether the first electric door is actually closed or not can be effectively determined, so that the protection action for the equipment is executed or not is determined, the safety of the equipment can be effectively ensured when the protection action should be executed, the expansion of faults is avoided, and the occurrence of accidents such as abnormal shutdown of a machine set and the like can not be caused when the protection action should not be executed, and the production efficiency is not affected.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an embodiment of a method for managing device protection actions in the present application;
FIG. 2 is a schematic diagram of a management system for protecting equipment according to the present invention;
fig. 3 is a schematic structural diagram of a device for managing device protection actions in the present invention.
Detailed Description
The core of the invention is to provide a management method for equipment protection actions, which can effectively ensure the safety of equipment when the protection actions are to be executed, avoid the expansion of faults, and avoid the occurrence of abnormal shutdown and other events of a machine set when the protection actions are not to be executed, and avoid influencing the production efficiency.
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a flowchart of an implementation of a method for managing device protection actions in the present invention, where the method for managing device protection actions may include the following steps:
Step S101: when the device is operating normally, the open state signal of the first electrically operated gate disappears and the close state signal of the first electrically operated gate is received.
The specific type of the device described in the present application can be set and adjusted according to actual needs, for example, the device can be a wind power generation device, a hydraulic control device, etc., the device can include a plurality of electric doors, and the first electric door can be any electric door in the device, that is, the present application is described by taking the first electric door as an example.
When the device is operating normally, the current first electric door should be in an open state, i.e. the control system should be able to normally receive the open state signal fed back by the first electric door, and if the open state signal described in step S101 disappears and the closed state signal fed back by the first electric door is received, it is indicated that the first electric door is abnormal at this time, i.e. the first electric door that should normally feed back the open state signal, and the closed state signal is fed back at this time.
The specific reasons for this abnormality may be various, for example, specifically due to a failure of an electronic control element inside the first electrically operated gate, and also due to factors such as interference, noise, etc. introduced during signal transmission.
Step S102: and sequentially judging whether the preset N off state conditions are met.
In the scheme of the present application, for such an abnormal situation described in step S101, the protection action for the device is not directly performed, but whether the preset N off-state conditions are satisfied is sequentially determined.
The specific value of N is a positive integer not less than 2, and can be set and adjusted according to actual needs, for example, in an occasion, when the value of N is 3, it is required to sequentially determine whether 3 preset off-state conditions are satisfied, and it is understood that the specific content of each off-state condition can be set and adjusted according to actual needs, but for any 1 off-state condition, by performing the determination of the off-state condition, it is generally required to accurately reflect whether the first electric door is in a closed state.
For example, in one embodiment of the present application, when executing step S102, determining whether the preset item a off state condition is satisfied may specifically include:
judging whether the working current at a first designated position of the equipment is lower than a preset current threshold value or not;
if yes, determining that the a-th off state condition is met;
If not, determining that the a-th off state condition is not satisfied;
in this embodiment, a is a positive integer, which indicates an a-th off state condition among N off state conditions, for example, a is set to 1, and at this time, it is determined whether or not the 1-th off state condition among the preset N off state conditions is satisfied.
In this embodiment, it is considered that, in practical application, for some types of electric gates, after the electric gates are closed, the working current at the corresponding position of the device is reduced, so whether the working current at the first designated position of the device is lower than a preset current threshold value may be used as a physical judgment condition for whether the first electric gate is closed, that is, in this embodiment, if it is judged that the working current at the first designated position of the device is lower than the preset current threshold value, it may be determined that the a-th off state condition is satisfied, otherwise, if it is judged that the working current at the first designated position of the device is not lower than the preset current threshold value, it may be determined that the a-th off state condition is not satisfied.
It will be appreciated that, in addition, the specific position selection at the first designated position of the apparatus described in this embodiment may be set and adjusted according to the actual situation, and may be generally set based on the relevant circuit configuration, so long as the open/close state of the first electric door can be effectively reflected by the operating current at the first designated position. Similarly, the specific value of the preset current threshold may be set as required, for example, the current threshold may be set by related test data.
In a specific embodiment of the present invention, determining whether the preset b-th off state condition is met may specifically include:
judging whether the valve pressure difference at a second designated position of the equipment is higher than a preset pressure difference threshold value or not;
if yes, determining that the b-th off state condition is met;
if not, determining that the closing state condition of the b item is not satisfied;
in this embodiment, b is a positive integer, which indicates that the b-th off-state condition of the N-th off-state conditions, for example, b may be set to 2, and in this case, it is determined whether the 2-th off-state condition of the preset N-th off-state conditions is satisfied.
This embodiment takes into account that, in practical applications, for some types of electric doors, after the electric door is switched from the open state to the closed state, the valve pressure difference at the corresponding position will increase significantly, so that whether the valve pressure difference at the second designated position of the apparatus is lower than the preset differential pressure threshold value can be used as a physical judgment condition for whether the first electric door is closed, i.e. in this embodiment, if it is judged that the valve pressure difference at the second designated position of the apparatus is higher than the preset differential pressure threshold value, it can be determined that the b-th off state condition is satisfied. Otherwise, if the valve pressure difference at the second appointed position of the equipment is not higher than the preset pressure difference threshold value, it can be determined that the a-th closing state condition is not met.
Also, the specific position selection at the second designated position of the apparatus described in this embodiment may be set and adjusted according to the actual situation, and generally may be set based on the specific valve position of the second electric door, as long as the open/close state of the first electric door can be effectively reflected by the valve pressure difference at the second designated position. Likewise, the specific value of the preset differential pressure threshold may be set according to needs, for example, the differential pressure threshold may be set by related test data.
In a specific embodiment of the present invention, determining whether the preset c-th off state condition is met may specifically include:
starting timing when the open state signal of the first electric door disappears, and stopping timing when the close state signal of the first electric door is received, so as to obtain timing duration;
judging whether the timing duration exceeds a preset first duration;
if yes, determining that a c-th off-state condition is met;
if not, determining that the c-th off-state condition is not satisfied;
wherein c is a positive integer, and represents a c-th off state condition of the N off state conditions, and the first time period represents the shortest time period for the first electric door to switch from the opened state to the closed state.
In this embodiment, c is a positive integer, which indicates that the c-th off-state condition of the N off-state conditions, for example, c may be set to 3, and in this case, it is determined whether the 3-th off-state condition of the preset N off-state conditions is satisfied.
This embodiment is considered to take into account that, in practical application, there is a certain time consumption for some types of electric doors to switch from the open state to the closed state, and therefore, the time consumption can be based on the judgment condition of whether the first electric door is closed.
In this embodiment, when the open state signal of the first electric door disappears, the timing is started immediately, and then if the close state signal of the first electric door is received, the timing can be stopped, so that a timing duration is obtained, and then, whether the timing duration exceeds a preset first duration can be judged. The preset first duration represents the shortest time for the first power door to switch from the open state to the closed state.
Therefore, it can be seen that if the timing duration is judged to exceed the preset first duration, the condition of the c-th off state can be determined to be met, and correspondingly, if the timing duration is judged not to exceed the preset first duration, the condition that the first electric door is not switched to the off state at present is indicated, and the condition of the c-th off state can be determined to be not met.
Step S103: if at least k preset N off state conditions are met, determining that the first electric door is in a closed state, and executing protection action for equipment.
In the scheme of the application, considering that for N off-state conditions, although each off-state condition can accurately determine whether the first electric door is in a closed state, if the first electric door is judged based on only 1 off-state condition, the risk of misjudgment still exists. If it is determined that at least k off-state conditions are satisfied after sequentially determining whether the preset N off-state conditions are satisfied, it can be very accurately determined that the first electric door is actually in the closed state at present.
The specific value of k can be set according to actual needs, but it can be understood that N is greater than or equal to k, and k should be a positive integer not less than 2 in order to ensure reliability. In order to guarantee the reliability of the scheme, k may be set to more than half of N.
In a specific case, considering that N may be set to 3 and k may be set to 2, it may be determined very accurately whether the first electric door is currently in the closed state, and since the value of N is not too large, it is also beneficial to reduce the related detection cost and also reduce the execution time of step S102.
The determination that the first electrically operated gate is actually in the closed state at present indicates that the closed state signal of the first electrically operated gate received in step S101 is not a false trigger signal, that is, indicates that the first electrically operated gate is actually abnormal, and switches from the normally opened state to the closed state, so that it is necessary to immediately perform a protection operation for the device in order to ensure the safety of the system. For example, when a certain electric door is switched from a normal open state to a closed state, liquid in a pipeline cannot be discharged, and serious consequences such as liquid backflow and pipeline rupture may be caused, so that protection action for equipment needs to be immediately performed.
When the protection action for the device is executed, the specific protection action content can be set and adjusted according to the actual requirement, for example, a simple implementation manner is to power off the device. In addition, in some specific cases, more complex protection actions may be set, for example, multiple protection action modes may be preset, after it is determined that the first electric door is abnormal, according to the cause of the abnormality, a corresponding one of the preset multiple protection action modes is selected to implement, that is, the required protection action is adaptively executed based on the cause of the abnormality. In addition, in some occasions, after the first electric door is determined to be abnormal, the state of other devices can be combined, and one proper protection action mode can be selected from the preset protection action modes to be implemented, so that the optimal protection action effect is achieved.
Step S104: if the number of established N preset off-state conditions is smaller than k, determining that the first electric door is in an opened state, determining that the off-state signal received after the on-state signal disappears is a false trigger signal, and not executing a protection action for the equipment.
After judging whether the preset N closing state conditions are met in sequence, if the number of met N closing state conditions is smaller than k, it can be determined that the first electric door is actually in an opened state, that is, the closing state signal of the first electric door received in the step S101 is a false triggering signal, at this time, although an abnormality is actually occurred, that is, the opening state signal of the first electric door which should normally exist disappears, the normal operation of the equipment is not affected because the first electric door is still in the opened state at this time, so that the protection action for the equipment is not executed, that is, the protection is stopped at this time, so that the abnormal shutdown of the unit and other events are not caused, and the production efficiency is not affected.
Of course, in practical application, although the first electric door is still in an opened state at this time and does not affect the normal operation of the equipment, in order to improve the safety, prompt information is usually output to the staff at this time, so that the staff can timely perform the investigation and the solution of the problem, and the equipment is restored to a completely normal state.
In one embodiment of the present invention, the method may further include:
when the equipment is in normal operation, when the open state signal of the first electric door and the close state signal of the first electric door are received at the same time, the first electric door is determined to be in fault, and the protection action for the equipment is not executed temporarily.
In the foregoing, the case where the open state signal of the first electric door, which should be normally opened, is disappeared and the control system receives the close state signal of the first electric door has been described in detail, but in this embodiment, it is considered that the first electric door should normally feed back the open state signal when the apparatus is normally operated, but in some cases, the first electric door may feed back both the open state signal and the close state signal.
In this respect, an abnormality may be determined to occur when the open state signal of the first electric door and the close state signal of the first electric door are received at the same time, and this embodiment considers that there are usually 2 reasons for such an abnormality, one of which is that the first electric door is actually in the open state at this time, i.e., the received open state signal of the first electric door is correct, and the received close state signal of the first electric door is caused by interference, and the interference does not normally last too long, i.e., the close state signal automatically disappears after a short time. Another reason is that the failure of the electric control element of the first electric door is caused, at this time, the first electric door is in an opened state, but the failure of the electric control element causes the first electric door to feed back an open state signal and a close state signal at the same time.
Based on the above 2 reason analyses, this embodiment considers that, when the open state signal of the first electric door and the close state signal of the first electric door are received at the same time, the first electric door may be directly considered to be in failure, but when this occurs, the actual state of the first electric door generally coincides with the correct state, so that the protection action for the equipment is not executed temporarily, abnormal shutdown of the unit is avoided, and the production efficiency is advantageously ensured.
Of course, in practical applications, in this case, after the protection action for the device is not performed temporarily, the subsequent operation may be set according to the actual need.
For example, after temporarily not performing a protection action for the device, the worker may be notified immediately, the worker decides whether to perform the protection action for the device, or a corresponding operation is performed based on an instruction issued by the worker to solve the abnormality. As another example, in some cases, after temporarily not performing a protection action for the device, a corresponding indicator in the device may be monitored, if the monitored indicators are all normal, the protection action for the device may continue to be performed, otherwise the protection action for the device may be performed.
In one embodiment of the present invention, the method may further include:
when the equipment operates normally, a closing instruction for the first electric door is received;
controlling the first electric door to be in a closed state based on the closing instruction;
after receiving the closing state signal of the first electric door, sequentially judging whether preset N closing state conditions are met;
if at least k preset N off state conditions are met, determining that the first electric door is in a closed state;
if the number of established preset N off state conditions is smaller than k, determining that the first electric door is in an opened state, and outputting prompt information of the first electric door fault.
In fig. 1, a case is described in which the open state signal of the first electric door that should be normally opened is lost, and the control system receives the close state signal of the first electric door, and in this embodiment, it is considered that, when the apparatus is normally operated, due to reasons such as needing to adjust production process parameters, the control system receives a closing instruction for the first electric door issued by a worker, that is, a closing instruction is required to close the first electric door at this time, so that the first electric door can be controlled to be in a closed state based on the closing instruction.
In general, after the first electric door is controlled to be in a closed state, a closing state signal of the first electric door may be received, in this embodiment, in order to ensure accuracy of the closing state signal, in a similar manner to the above embodiment, whether a preset N pieces of closing state conditions are satisfied may also be sequentially determined, and if at least k pieces of closing state conditions are satisfied, it may be accurately determined that the first electric door is actually in a closed state at this time, that is, the closing operation is successfully completed.
Accordingly, if the number of the N off-state conditions is smaller than k, it may be determined that the first electrically operated gate is actually in an opened state, which indicates that the closing operation fails, for example, the first electrically operated gate feeds back the off-state signal due to a related mechanical structure failure, but the first electrically operated gate is not actually closed. Therefore, for the situation, the prompt information of the first electric door fault can be output, so that the staff can timely process the fault situation.
In addition, in a small number of cases, after receiving and issuing the closing command, a long time may be waited, and the closing state signal of the first electric door is not received all the time, or the opening state signal of the first electric door is received all the time, so that for such a case, whether the preset N closing state conditions are met may be sequentially determined, so as to determine whether the first electric door is actually in the closed state, and then, based on the determination result, the subsequent operation is determined.
In one embodiment of the present invention, the method may further include:
step one: when the equipment normally operates, the closing state signal of the second electric door disappears, and the opening state signal of the second electric door is received;
step two: sequentially judging whether preset M open state conditions are met;
step three: if at least p preset M open state conditions are met, determining that the second electric door is in an open state, and executing protection action for equipment;
step four: if the number of established conditions in the preset M open state conditions is smaller than p, determining that the second electric door is in a closed state, determining that the received open state signal is a false trigger signal, and not executing protection action for equipment;
wherein M is a positive integer not less than 2, p is a positive integer not less than 2, and M is not less than p.
In fig. 1 above, the case where the open state signal of the first electric door that should be normally opened disappears and the control system receives the close state signal of the first electric door is described, that is, when the apparatus is normally operated, the first electric door should be in a normal open state, in other words, the first electric door is an electric door that is normally operated as an open state.
In this embodiment, considering that there may be an opposite situation, that is, when the device is operating normally, the current second electric door should be in a closed state, that is, the control system should be able to normally receive the off state signal fed back by the second electric door, and if the off state signal of the second electric door described in step one of this embodiment disappears, and the on state signal fed back by the second electric door is received, it is indicated that the second electric door is abnormal at this time, that is, the second electric door that should normally feed back the off state signal is fed back, and at this time, the on state signal is fed back.
The specific cause of the abnormality may be various, for example, specifically caused by a failure of an electronic control element inside the second electrically operated gate, and also caused by factors such as interference, noise, and the like introduced in the signal transmission process.
In this embodiment, too, the protection operation for the device is not directly performed, but whether the preset M off-state conditions are satisfied is sequentially determined.
As with the above, M is a positive integer not less than 2, and the specific value can be set and adjusted according to actual needs, for example, in one occasion, the value of M can be 3.
If at least p open state conditions are satisfied among the M open state conditions, it can be determined that the second power door is indeed in an open state, and thus a protection action for the device is performed. Correspondingly, if the number of established M preset open state conditions is smaller than p, it may be determined that the second electrically operated gate is in a closed state, that is, the open state signal received in the first step is a false trigger signal, and the protection action for the device may not be executed.
The specific content of the M open state conditions may be set and adjusted according to actual needs, and it is understood that, since the open state and the closed state of the electric door correspond to each other, the principle of the closed state conditions described in the above embodiments may be applied correspondingly to the embodiments to realize the determination of whether the second electric door is in the open state, and the description will not be repeated here. Also, in the other embodiments above, the principle of the respective operations developed for the first electric door may be equally applied to the second electric door in this embodiment, for example, when the open state signal of the second electric door and the close state signal of the second electric door are simultaneously received when the apparatus is operating normally, the second electric door may be determined to be malfunctioning, and the protection action for the apparatus may not be performed temporarily.
It should be further noted that in practical applications, there may be a large number of electric doors in the apparatus, and some of the electric doors should be kept in an open state when the apparatus is operated, and these electric doors may be used as the first electric door of the present application, so that the corresponding embodiments for the first electric door in the above embodiments are adopted. While some of the electrically powered doors should remain closed while the device is in operation, these electrically powered doors may each be used as a second electrically powered door of the present application, thereby employing the corresponding ones of the various embodiments above for the second electrically powered door. In addition, some electric doors may be required to be kept in an open state under some working conditions, and may be required to be kept in a closed state under some working conditions, and it is understood that when the electric doors need to be kept in an open state, the electric doors may be used as first electric doors so as to adopt the corresponding embodiments of the first electric doors described above, and when the electric doors need to be kept in a closed state, the electric doors may be used as second electric doors so as to adopt the corresponding embodiments of the second electric doors described above.
By applying the technical scheme provided by the embodiment of the application, the situation that the electric door sends out the off state signal by mistake often occurs when the system protection is in error operation is considered. In this regard, in the scheme of the present application, if the open state signal of the first electric door disappears and the close state signal of the first electric door is received when the device is operating normally, an abnormal situation occurs at this time, and for this abnormal situation, the scheme of the present application does not directly perform the protection action for the device, but considers that the close state signal at this time may be erroneously emitted. In this regard, the present application sequentially determines whether the preset N off-state conditions are satisfied. If at least k preset N off state conditions are met, it can be determined that the first electric door is in a closed state at the moment, and since the first electric door is in an open state at the moment, after the first electric door is determined to be closed, protection action for equipment can be executed, so that safety of the equipment is guaranteed, and expansion of faults is avoided. If the number of the established N preset off-state conditions is smaller than k, it can be stated that the first electric door is not closed but is in an open state at this time, that is, it can be determined that the received off-state signal is a false trigger signal after the on-state signal disappears, so that protection action on equipment can not be executed at this time, and the abnormal shutdown of the unit and other events are not caused, and the production efficiency is not affected.
In summary, in the scheme of the application, after the open state signal of the first electric door disappears and the close state signal of the first electric door is received, for such abnormal situations, the protection action for the equipment is not directly executed, but whether the first electric door is actually closed or not can be effectively determined, so that the protection action for the equipment is executed or not is determined, the safety of the equipment can be effectively ensured when the protection action should be executed, the expansion of faults is avoided, and the occurrence of accidents such as abnormal shutdown of a machine set and the like can not be caused when the protection action should not be executed, and the production efficiency is not affected.
Corresponding to the above method embodiment, the embodiment of the present application further provides a management system for device protection actions, which can be referred to above in a mutually corresponding manner.
Referring to fig. 2, a schematic structural diagram of a management system for protecting an apparatus according to the present application includes:
an abnormal off state signal receiving module 201, configured to, when the device is operating normally, disappear the on state signal of the first electrically operated gate, and receive the off state signal of the first electrically operated gate;
a judging module 202, configured to sequentially judge whether a preset N off state condition is satisfied;
If at least k preset N off-state conditions are met, triggering the first execution module 203, where the first execution module 203 is configured to: determining that the first electrically operated gate is in a closed state and performing a protection action for the device;
if the number of established N preset off-state conditions is smaller than k, triggering the second execution module 204, where the second execution module 204 is configured to: determining that the first electrically operated gate is in an open state, and determining that the off state signal received after the disappearance of the on state signal is a false trigger signal, and not performing a protection action for the device;
wherein N is a positive integer not less than 2, k is a positive integer not less than 2, and N is not less than k.
In one embodiment of the present invention, determining whether the preset a-th off state condition is satisfied includes:
judging whether the working current at a first designated position of the equipment is lower than a preset current threshold value or not;
if yes, determining that the a-th off state condition is met;
if not, determining that the a-th off state condition is not satisfied;
wherein a is a positive integer, and represents an a-th off state condition in N off state conditions.
In one embodiment of the present invention, determining whether the preset b-th off state condition is satisfied includes:
Judging whether the valve pressure difference at a second designated position of the equipment is higher than a preset pressure difference threshold value or not;
if yes, determining that the b-th off state condition is met;
if not, determining that the closing state condition of the b item is not satisfied;
wherein b is a positive integer, and represents the b-th off-state condition in the N-th off-state conditions.
In one embodiment of the present invention, determining whether the preset c-th off state condition is satisfied includes:
starting timing when the open state signal of the first electric door disappears, and stopping timing when the close state signal of the first electric door is received, so as to obtain timing duration;
judging whether the timing duration exceeds a preset first duration;
if yes, determining that a c-th off-state condition is met;
if not, determining that the c-th off-state condition is not satisfied;
wherein c is a positive integer, and represents a c-th off state condition of the N off state conditions, and the first time period represents the shortest time period for the first electric door to switch from the opened state to the closed state.
In a specific embodiment of the present invention, the device further includes an abnormal switch state signal receiving and processing module, configured to:
when the equipment is in normal operation, when the open state signal of the first electric door and the close state signal of the first electric door are received at the same time, the first electric door is determined to be in fault, and the protection action for the equipment is not executed temporarily.
In a specific embodiment of the present invention, the system further includes a shutdown instruction receiving and processing module, configured to:
when the equipment operates normally, a closing instruction for the first electric door is received;
controlling the first electric door to be in a closed state based on the closing instruction;
after receiving the closing state signal of the first electric door, sequentially judging whether preset N closing state conditions are met;
if at least k preset N off state conditions are met, determining that the first electric door is in a closed state;
if the number of established preset N off state conditions is smaller than k, determining that the first electric door is in an opened state, and outputting prompt information of the first electric door fault.
In a specific embodiment of the present invention, the system further includes an abnormal open state signal receiving and processing module, configured to:
when the equipment normally operates, the closing state signal of the second electric door disappears, and the opening state signal of the second electric door is received;
sequentially judging whether preset M open state conditions are met;
if at least p preset M open state conditions are met, determining that the second electric door is in an open state, and executing protection action for equipment;
If the number of established conditions in the preset M open state conditions is smaller than p, determining that the second electric door is in a closed state, determining that the received open state signal is a false trigger signal, and not executing protection action for equipment;
wherein M is a positive integer not less than 2, p is a positive integer not less than 2, and M is not less than p.
Corresponding to the above method and system embodiments, the embodiments of the present invention further provide a device protection action management device and a computer readable storage medium, which can be referred to above in correspondence with each other.
Referring to fig. 3, the management device for the device protection action may include:
a memory 301 for storing a computer program;
a processor 302 for executing a computer program to implement the steps of the method of managing device protection actions as in any of the embodiments described above.
The computer-readable storage medium stores a computer program which, when executed by a processor, implements the steps of the method for managing device protection actions in any of the embodiments described above. The computer readable storage medium as described herein includes Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The principles and embodiments of the present invention have been described herein with reference to specific examples, but the description of the examples above is only for aiding in understanding the technical solution of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that the present invention may be modified and practiced without departing from the spirit of the present invention.
Claims (10)
1. A method of managing device protection actions, comprising:
when the equipment normally operates, the open state signal of the first electric door disappears, and the close state signal of the first electric door is received;
sequentially judging whether preset N off state conditions are met;
if at least k preset N off-state conditions are met, determining that the first electric door is in a closed state, and executing a protection action for the equipment;
if the number of established N preset off-state conditions is smaller than k, determining that the first electric door is in an opened state, determining that the off-state signal received after the on-state signal disappears is a false trigger signal, and not executing a protection action for the equipment;
Wherein N is a positive integer not less than 2, k is a positive integer not less than 2, and N is not less than k.
2. The method for managing a device protection action according to claim 1, wherein determining whether a preset item a off state condition is satisfied comprises:
judging whether the working current at a first designated position of the equipment is lower than a preset current threshold value or not;
if yes, determining that the a-th off state condition is met;
if not, determining that the a-th off state condition is not satisfied;
wherein a is a positive integer, and represents an a-th off state condition in N off state conditions.
3. The method for managing a device protection action according to claim 1, wherein determining whether a preset item b off state condition is satisfied comprises:
judging whether the valve pressure difference at a second designated position of the equipment is higher than a preset pressure difference threshold value or not;
if yes, determining that the b-th off state condition is met;
if not, determining that the closing state condition of the b item is not satisfied;
wherein b is a positive integer, and represents the b-th off-state condition in the N-th off-state conditions.
4. The method for managing a device protection action according to claim 1, wherein determining whether a preset c-th off-state condition is satisfied comprises:
Starting timing when the open state signal of the first electric door disappears, and stopping timing when the close state signal of the first electric door is received, so as to obtain timing duration;
judging whether the timing duration exceeds a preset first duration;
if yes, determining that a c-th off-state condition is met;
if not, determining that the c-th off-state condition is not satisfied;
and c is a positive integer, the c-th off state condition in the N off state conditions is represented, and the first time length represents the shortest time for switching the first electric door from the opened state to the closed state.
5. The method of claim 1, further comprising:
when the equipment is in normal operation, when the open state signal of the first electric door and the close state signal of the first electric door are received at the same time, determining that the first electric door is in fault, and temporarily not executing the protection action for the equipment.
6. The method of claim 1, further comprising:
when the equipment operates normally, a closing instruction for the first electric door is received;
Controlling the first electric door to be in a closed state based on the closing instruction;
after receiving the closing state signal of the first electric door, sequentially judging whether preset N closing state conditions are met;
if at least k preset N off-state conditions are met, determining that the first electric door is in a closed state;
if the number of established N preset closing state conditions is smaller than k, determining that the first electric door is in an opened state, and outputting prompt information of the first electric door fault.
7. The method of managing device protection actions according to any one of claims 1 to 6, further comprising:
when the equipment normally operates, the closing state signal of the second electric door disappears, and the opening state signal of the second electric door is received;
sequentially judging whether preset M open state conditions are met;
if at least p preset M open state conditions are met, determining that the second electric door is in an open state, and executing a protection action for the equipment;
if the number of established M preset open state conditions is smaller than p, determining that the second electric door is in a closed state, determining that the received open state signal is a false trigger signal, and not executing a protection action for the equipment;
Wherein M is a positive integer not less than 2, p is a positive integer not less than 2, and M is not less than p.
8. A system for managing device protection actions, comprising:
the abnormal closing state signal receiving module is used for eliminating the opening state signal of the first electric door and receiving the closing state signal of the first electric door when the equipment normally operates;
the judging module is used for sequentially judging whether the preset N off state conditions are met;
if at least k preset N off-state conditions are met, triggering a first execution module, wherein the first execution module is used for: determining that the first electrically powered door is in a closed state and performing a protective action for the device;
if the number of established preset N off state conditions is smaller than k, triggering a second execution module, wherein the second execution module is used for: determining that the first electrically operated gate is in an open state, and determining that the off state signal received after the disappearance of the on state signal is a false trigger signal, and not performing a protection action for the device;
wherein N is a positive integer not less than 2, k is a positive integer not less than 2, and N is not less than k.
9. A management device for device protection actions, comprising:
a memory for storing a computer program;
a processor for executing the computer program to implement the steps of the method of managing device protection actions of any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which when being executed by a processor implements the steps of the method for managing device protection actions according to any one of claims 1 to 7.
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| CN202311148613.5A CN117055495A (en) | 2023-09-06 | 2023-09-06 | Management method, system, equipment and storage medium for equipment protection action |
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| CN202311148613.5A CN117055495A (en) | 2023-09-06 | 2023-09-06 | Management method, system, equipment and storage medium for equipment protection action |
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| CN202311148613.5A Pending CN117055495A (en) | 2023-09-06 | 2023-09-06 | Management method, system, equipment and storage medium for equipment protection action |
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| CN (1) | CN117055495A (en) |
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